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commonroutesServer/app/www/lib/ionic/js/angular/angular.js
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    1/**
    2 * @license AngularJS v1.5.3
    3 * (c) 2010-2016 Google, Inc. http://angularjs.org
    4 * License: MIT
    5 */
    6(function(window, document, undefined) {'use strict';
    7
    8/**
    9 * @description
   10 *
   11 * This object provides a utility for producing rich Error messages within
   12 * Angular. It can be called as follows:
   13 *
   14 * var exampleMinErr = minErr('example');
   15 * throw exampleMinErr('one', 'This {0} is {1}', foo, bar);
   16 *
   17 * The above creates an instance of minErr in the example namespace. The
   18 * resulting error will have a namespaced error code of example.one.  The
   19 * resulting error will replace {0} with the value of foo, and {1} with the
   20 * value of bar. The object is not restricted in the number of arguments it can
   21 * take.
   22 *
   23 * If fewer arguments are specified than necessary for interpolation, the extra
   24 * interpolation markers will be preserved in the final string.
   25 *
   26 * Since data will be parsed statically during a build step, some restrictions
   27 * are applied with respect to how minErr instances are created and called.
   28 * Instances should have names of the form namespaceMinErr for a minErr created
   29 * using minErr('namespace') . Error codes, namespaces and template strings
   30 * should all be static strings, not variables or general expressions.
   31 *
   32 * @param {string} module The namespace to use for the new minErr instance.
   33 * @param {function} ErrorConstructor Custom error constructor to be instantiated when returning
   34 *   error from returned function, for cases when a particular type of error is useful.
   35 * @returns {function(code:string, template:string, ...templateArgs): Error} minErr instance
   36 */
   37
   38function minErr(module, ErrorConstructor) {
   39  ErrorConstructor = ErrorConstructor || Error;
   40  return function() {
   41    var SKIP_INDEXES = 2;
   42
   43    var templateArgs = arguments,
   44      code = templateArgs[0],
   45      message = '[' + (module ? module + ':' : '') + code + '] ',
   46      template = templateArgs[1],
   47      paramPrefix, i;
   48
   49    message += template.replace(/\{\d+\}/g, function(match) {
   50      var index = +match.slice(1, -1),
   51        shiftedIndex = index + SKIP_INDEXES;
   52
   53      if (shiftedIndex < templateArgs.length) {
   54        return toDebugString(templateArgs[shiftedIndex]);
   55      }
   56
   57      return match;
   58    });
   59
   60    message += '\nhttp://errors.angularjs.org/1.5.3/' +
   61      (module ? module + '/' : '') + code;
   62
   63    for (i = SKIP_INDEXES, paramPrefix = '?'; i < templateArgs.length; i++, paramPrefix = '&') {
   64      message += paramPrefix + 'p' + (i - SKIP_INDEXES) + '=' +
   65        encodeURIComponent(toDebugString(templateArgs[i]));
   66    }
   67
   68    return new ErrorConstructor(message);
   69  };
   70}
   71
   72/* We need to tell jshint what variables are being exported */
   73/* global angular: true,
   74  msie: true,
   75  jqLite: true,
   76  jQuery: true,
   77  slice: true,
   78  splice: true,
   79  push: true,
   80  toString: true,
   81  ngMinErr: true,
   82  angularModule: true,
   83  uid: true,
   84  REGEX_STRING_REGEXP: true,
   85  VALIDITY_STATE_PROPERTY: true,
   86
   87  lowercase: true,
   88  uppercase: true,
   89  manualLowercase: true,
   90  manualUppercase: true,
   91  nodeName_: true,
   92  isArrayLike: true,
   93  forEach: true,
   94  forEachSorted: true,
   95  reverseParams: true,
   96  nextUid: true,
   97  setHashKey: true,
   98  extend: true,
   99  toInt: true,
  100  inherit: true,
  101  merge: true,
  102  noop: true,
  103  identity: true,
  104  valueFn: true,
  105  isUndefined: true,
  106  isDefined: true,
  107  isObject: true,
  108  isBlankObject: true,
  109  isString: true,
  110  isNumber: true,
  111  isDate: true,
  112  isArray: true,
  113  isFunction: true,
  114  isRegExp: true,
  115  isWindow: true,
  116  isScope: true,
  117  isFile: true,
  118  isFormData: true,
  119  isBlob: true,
  120  isBoolean: true,
  121  isPromiseLike: true,
  122  trim: true,
  123  escapeForRegexp: true,
  124  isElement: true,
  125  makeMap: true,
  126  includes: true,
  127  arrayRemove: true,
  128  copy: true,
  129  shallowCopy: true,
  130  equals: true,
  131  csp: true,
  132  jq: true,
  133  concat: true,
  134  sliceArgs: true,
  135  bind: true,
  136  toJsonReplacer: true,
  137  toJson: true,
  138  fromJson: true,
  139  convertTimezoneToLocal: true,
  140  timezoneToOffset: true,
  141  startingTag: true,
  142  tryDecodeURIComponent: true,
  143  parseKeyValue: true,
  144  toKeyValue: true,
  145  encodeUriSegment: true,
  146  encodeUriQuery: true,
  147  angularInit: true,
  148  bootstrap: true,
  149  getTestability: true,
  150  snake_case: true,
  151  bindJQuery: true,
  152  assertArg: true,
  153  assertArgFn: true,
  154  assertNotHasOwnProperty: true,
  155  getter: true,
  156  getBlockNodes: true,
  157  hasOwnProperty: true,
  158  createMap: true,
  159
  160  NODE_TYPE_ELEMENT: true,
  161  NODE_TYPE_ATTRIBUTE: true,
  162  NODE_TYPE_TEXT: true,
  163  NODE_TYPE_COMMENT: true,
  164  NODE_TYPE_DOCUMENT: true,
  165  NODE_TYPE_DOCUMENT_FRAGMENT: true,
  166*/
  167
  168////////////////////////////////////
  169
  170/**
  171 * @ngdoc module
  172 * @name ng
  173 * @module ng
  174 * @description
  175 *
  176 * # ng (core module)
  177 * The ng module is loaded by default when an AngularJS application is started. The module itself
  178 * contains the essential components for an AngularJS application to function. The table below
  179 * lists a high level breakdown of each of the services/factories, filters, directives and testing
  180 * components available within this core module.
  181 *
  182 * <div doc-module-components="ng"></div>
  183 */
  184
  185var REGEX_STRING_REGEXP = /^\/(.+)\/([a-z]*)$/;
  186
  187// The name of a form control's ValidityState property.
  188// This is used so that it's possible for internal tests to create mock ValidityStates.
  189var VALIDITY_STATE_PROPERTY = 'validity';
  190
  191var hasOwnProperty = Object.prototype.hasOwnProperty;
  192
  193var lowercase = function(string) {return isString(string) ? string.toLowerCase() : string;};
  194var uppercase = function(string) {return isString(string) ? string.toUpperCase() : string;};
  195
  196
  197var manualLowercase = function(s) {
  198  /* jshint bitwise: false */
  199  return isString(s)
  200      ? s.replace(/[A-Z]/g, function(ch) {return String.fromCharCode(ch.charCodeAt(0) | 32);})
  201      : s;
  202};
  203var manualUppercase = function(s) {
  204  /* jshint bitwise: false */
  205  return isString(s)
  206      ? s.replace(/[a-z]/g, function(ch) {return String.fromCharCode(ch.charCodeAt(0) & ~32);})
  207      : s;
  208};
  209
  210
  211// String#toLowerCase and String#toUpperCase don't produce correct results in browsers with Turkish
  212// locale, for this reason we need to detect this case and redefine lowercase/uppercase methods
  213// with correct but slower alternatives. See https://github.com/angular/angular.js/issues/11387
  214if ('i' !== 'I'.toLowerCase()) {
  215  lowercase = manualLowercase;
  216  uppercase = manualUppercase;
  217}
  218
  219
  220var
  221    msie,             // holds major version number for IE, or NaN if UA is not IE.
  222    jqLite,           // delay binding since jQuery could be loaded after us.
  223    jQuery,           // delay binding
  224    slice             = [].slice,
  225    splice            = [].splice,
  226    push              = [].push,
  227    toString          = Object.prototype.toString,
  228    getPrototypeOf    = Object.getPrototypeOf,
  229    ngMinErr          = minErr('ng'),
  230
  231    /** @name angular */
  232    angular           = window.angular || (window.angular = {}),
  233    angularModule,
  234    uid               = 0;
  235
  236/**
  237 * documentMode is an IE-only property
  238 * http://msdn.microsoft.com/en-us/library/ie/cc196988(v=vs.85).aspx
  239 */
  240msie = document.documentMode;
  241
  242
  243/**
  244 * @private
  245 * @param {*} obj
  246 * @return {boolean} Returns true if `obj` is an array or array-like object (NodeList, Arguments,
  247 *                   String ...)
  248 */
  249function isArrayLike(obj) {
  250
  251  // `null`, `undefined` and `window` are not array-like
  252  if (obj == null || isWindow(obj)) return false;
  253
  254  // arrays, strings and jQuery/jqLite objects are array like
  255  // * jqLite is either the jQuery or jqLite constructor function
  256  // * we have to check the existence of jqLite first as this method is called
  257  //   via the forEach method when constructing the jqLite object in the first place
  258  if (isArray(obj) || isString(obj) || (jqLite && obj instanceof jqLite)) return true;
  259
  260  // Support: iOS 8.2 (not reproducible in simulator)
  261  // "length" in obj used to prevent JIT error (gh-11508)
  262  var length = "length" in Object(obj) && obj.length;
  263
  264  // NodeList objects (with `item` method) and
  265  // other objects with suitable length characteristics are array-like
  266  return isNumber(length) &&
  267    (length >= 0 && ((length - 1) in obj || obj instanceof Array) || typeof obj.item == 'function');
  268
  269}
  270
  271/**
  272 * @ngdoc function
  273 * @name angular.forEach
  274 * @module ng
  275 * @kind function
  276 *
  277 * @description
  278 * Invokes the `iterator` function once for each item in `obj` collection, which can be either an
  279 * object or an array. The `iterator` function is invoked with `iterator(value, key, obj)`, where `value`
  280 * is the value of an object property or an array element, `key` is the object property key or
  281 * array element index and obj is the `obj` itself. Specifying a `context` for the function is optional.
  282 *
  283 * It is worth noting that `.forEach` does not iterate over inherited properties because it filters
  284 * using the `hasOwnProperty` method.
  285 *
  286 * Unlike ES262's
  287 * [Array.prototype.forEach](http://www.ecma-international.org/ecma-262/5.1/#sec-15.4.4.18),
  288 * providing 'undefined' or 'null' values for `obj` will not throw a TypeError, but rather just
  289 * return the value provided.
  290 *
  291   ```js
  292     var values = {name: 'misko', gender: 'male'};
  293     var log = [];
  294     angular.forEach(values, function(value, key) {
  295       this.push(key + ': ' + value);
  296     }, log);
  297     expect(log).toEqual(['name: misko', 'gender: male']);
  298   ```
  299 *
  300 * @param {Object|Array} obj Object to iterate over.
  301 * @param {Function} iterator Iterator function.
  302 * @param {Object=} context Object to become context (`this`) for the iterator function.
  303 * @returns {Object|Array} Reference to `obj`.
  304 */
  305
  306function forEach(obj, iterator, context) {
  307  var key, length;
  308  if (obj) {
  309    if (isFunction(obj)) {
  310      for (key in obj) {
  311        // Need to check if hasOwnProperty exists,
  312        // as on IE8 the result of querySelectorAll is an object without a hasOwnProperty function
  313        if (key != 'prototype' && key != 'length' && key != 'name' && (!obj.hasOwnProperty || obj.hasOwnProperty(key))) {
  314          iterator.call(context, obj[key], key, obj);
  315        }
  316      }
  317    } else if (isArray(obj) || isArrayLike(obj)) {
  318      var isPrimitive = typeof obj !== 'object';
  319      for (key = 0, length = obj.length; key < length; key++) {
  320        if (isPrimitive || key in obj) {
  321          iterator.call(context, obj[key], key, obj);
  322        }
  323      }
  324    } else if (obj.forEach && obj.forEach !== forEach) {
  325        obj.forEach(iterator, context, obj);
  326    } else if (isBlankObject(obj)) {
  327      // createMap() fast path --- Safe to avoid hasOwnProperty check because prototype chain is empty
  328      for (key in obj) {
  329        iterator.call(context, obj[key], key, obj);
  330      }
  331    } else if (typeof obj.hasOwnProperty === 'function') {
  332      // Slow path for objects inheriting Object.prototype, hasOwnProperty check needed
  333      for (key in obj) {
  334        if (obj.hasOwnProperty(key)) {
  335          iterator.call(context, obj[key], key, obj);
  336        }
  337      }
  338    } else {
  339      // Slow path for objects which do not have a method `hasOwnProperty`
  340      for (key in obj) {
  341        if (hasOwnProperty.call(obj, key)) {
  342          iterator.call(context, obj[key], key, obj);
  343        }
  344      }
  345    }
  346  }
  347  return obj;
  348}
  349
  350function forEachSorted(obj, iterator, context) {
  351  var keys = Object.keys(obj).sort();
  352  for (var i = 0; i < keys.length; i++) {
  353    iterator.call(context, obj[keys[i]], keys[i]);
  354  }
  355  return keys;
  356}
  357
  358
  359/**
  360 * when using forEach the params are value, key, but it is often useful to have key, value.
  361 * @param {function(string, *)} iteratorFn
  362 * @returns {function(*, string)}
  363 */
  364function reverseParams(iteratorFn) {
  365  return function(value, key) {iteratorFn(key, value);};
  366}
  367
  368/**
  369 * A consistent way of creating unique IDs in angular.
  370 *
  371 * Using simple numbers allows us to generate 28.6 million unique ids per second for 10 years before
  372 * we hit number precision issues in JavaScript.
  373 *
  374 * Math.pow(2,53) / 60 / 60 / 24 / 365 / 10 = 28.6M
  375 *
  376 * @returns {number} an unique alpha-numeric string
  377 */
  378function nextUid() {
  379  return ++uid;
  380}
  381
  382
  383/**
  384 * Set or clear the hashkey for an object.
  385 * @param obj object
  386 * @param h the hashkey (!truthy to delete the hashkey)
  387 */
  388function setHashKey(obj, h) {
  389  if (h) {
  390    obj.$$hashKey = h;
  391  } else {
  392    delete obj.$$hashKey;
  393  }
  394}
  395
  396
  397function baseExtend(dst, objs, deep) {
  398  var h = dst.$$hashKey;
  399
  400  for (var i = 0, ii = objs.length; i < ii; ++i) {
  401    var obj = objs[i];
  402    if (!isObject(obj) && !isFunction(obj)) continue;
  403    var keys = Object.keys(obj);
  404    for (var j = 0, jj = keys.length; j < jj; j++) {
  405      var key = keys[j];
  406      var src = obj[key];
  407
  408      if (deep && isObject(src)) {
  409        if (isDate(src)) {
  410          dst[key] = new Date(src.valueOf());
  411        } else if (isRegExp(src)) {
  412          dst[key] = new RegExp(src);
  413        } else if (src.nodeName) {
  414          dst[key] = src.cloneNode(true);
  415        } else if (isElement(src)) {
  416          dst[key] = src.clone();
  417        } else {
  418          if (!isObject(dst[key])) dst[key] = isArray(src) ? [] : {};
  419          baseExtend(dst[key], [src], true);
  420        }
  421      } else {
  422        dst[key] = src;
  423      }
  424    }
  425  }
  426
  427  setHashKey(dst, h);
  428  return dst;
  429}
  430
  431/**
  432 * @ngdoc function
  433 * @name angular.extend
  434 * @module ng
  435 * @kind function
  436 *
  437 * @description
  438 * Extends the destination object `dst` by copying own enumerable properties from the `src` object(s)
  439 * to `dst`. You can specify multiple `src` objects. If you want to preserve original objects, you can do so
  440 * by passing an empty object as the target: `var object = angular.extend({}, object1, object2)`.
  441 *
  442 * **Note:** Keep in mind that `angular.extend` does not support recursive merge (deep copy). Use
  443 * {@link angular.merge} for this.
  444 *
  445 * @param {Object} dst Destination object.
  446 * @param {...Object} src Source object(s).
  447 * @returns {Object} Reference to `dst`.
  448 */
  449function extend(dst) {
  450  return baseExtend(dst, slice.call(arguments, 1), false);
  451}
  452
  453
  454/**
  455* @ngdoc function
  456* @name angular.merge
  457* @module ng
  458* @kind function
  459*
  460* @description
  461* Deeply extends the destination object `dst` by copying own enumerable properties from the `src` object(s)
  462* to `dst`. You can specify multiple `src` objects. If you want to preserve original objects, you can do so
  463* by passing an empty object as the target: `var object = angular.merge({}, object1, object2)`.
  464*
  465* Unlike {@link angular.extend extend()}, `merge()` recursively descends into object properties of source
  466* objects, performing a deep copy.
  467*
  468* @param {Object} dst Destination object.
  469* @param {...Object} src Source object(s).
  470* @returns {Object} Reference to `dst`.
  471*/
  472function merge(dst) {
  473  return baseExtend(dst, slice.call(arguments, 1), true);
  474}
  475
  476
  477
  478function toInt(str) {
  479  return parseInt(str, 10);
  480}
  481
  482
  483function inherit(parent, extra) {
  484  return extend(Object.create(parent), extra);
  485}
  486
  487/**
  488 * @ngdoc function
  489 * @name angular.noop
  490 * @module ng
  491 * @kind function
  492 *
  493 * @description
  494 * A function that performs no operations. This function can be useful when writing code in the
  495 * functional style.
  496   ```js
  497     function foo(callback) {
  498       var result = calculateResult();
  499       (callback || angular.noop)(result);
  500     }
  501   ```
  502 */
  503function noop() {}
  504noop.$inject = [];
  505
  506
  507/**
  508 * @ngdoc function
  509 * @name angular.identity
  510 * @module ng
  511 * @kind function
  512 *
  513 * @description
  514 * A function that returns its first argument. This function is useful when writing code in the
  515 * functional style.
  516 *
  517   ```js
  518     function transformer(transformationFn, value) {
  519       return (transformationFn || angular.identity)(value);
  520     };
  521   ```
  522  * @param {*} value to be returned.
  523  * @returns {*} the value passed in.
  524 */
  525function identity($) {return $;}
  526identity.$inject = [];
  527
  528
  529function valueFn(value) {return function valueRef() {return value;};}
  530
  531function hasCustomToString(obj) {
  532  return isFunction(obj.toString) && obj.toString !== toString;
  533}
  534
  535
  536/**
  537 * @ngdoc function
  538 * @name angular.isUndefined
  539 * @module ng
  540 * @kind function
  541 *
  542 * @description
  543 * Determines if a reference is undefined.
  544 *
  545 * @param {*} value Reference to check.
  546 * @returns {boolean} True if `value` is undefined.
  547 */
  548function isUndefined(value) {return typeof value === 'undefined';}
  549
  550
  551/**
  552 * @ngdoc function
  553 * @name angular.isDefined
  554 * @module ng
  555 * @kind function
  556 *
  557 * @description
  558 * Determines if a reference is defined.
  559 *
  560 * @param {*} value Reference to check.
  561 * @returns {boolean} True if `value` is defined.
  562 */
  563function isDefined(value) {return typeof value !== 'undefined';}
  564
  565
  566/**
  567 * @ngdoc function
  568 * @name angular.isObject
  569 * @module ng
  570 * @kind function
  571 *
  572 * @description
  573 * Determines if a reference is an `Object`. Unlike `typeof` in JavaScript, `null`s are not
  574 * considered to be objects. Note that JavaScript arrays are objects.
  575 *
  576 * @param {*} value Reference to check.
  577 * @returns {boolean} True if `value` is an `Object` but not `null`.
  578 */
  579function isObject(value) {
  580  // http://jsperf.com/isobject4
  581  return value !== null && typeof value === 'object';
  582}
  583
  584
  585/**
  586 * Determine if a value is an object with a null prototype
  587 *
  588 * @returns {boolean} True if `value` is an `Object` with a null prototype
  589 */
  590function isBlankObject(value) {
  591  return value !== null && typeof value === 'object' && !getPrototypeOf(value);
  592}
  593
  594
  595/**
  596 * @ngdoc function
  597 * @name angular.isString
  598 * @module ng
  599 * @kind function
  600 *
  601 * @description
  602 * Determines if a reference is a `String`.
  603 *
  604 * @param {*} value Reference to check.
  605 * @returns {boolean} True if `value` is a `String`.
  606 */
  607function isString(value) {return typeof value === 'string';}
  608
  609
  610/**
  611 * @ngdoc function
  612 * @name angular.isNumber
  613 * @module ng
  614 * @kind function
  615 *
  616 * @description
  617 * Determines if a reference is a `Number`.
  618 *
  619 * This includes the "special" numbers `NaN`, `+Infinity` and `-Infinity`.
  620 *
  621 * If you wish to exclude these then you can use the native
  622 * [`isFinite'](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/isFinite)
  623 * method.
  624 *
  625 * @param {*} value Reference to check.
  626 * @returns {boolean} True if `value` is a `Number`.
  627 */
  628function isNumber(value) {return typeof value === 'number';}
  629
  630
  631/**
  632 * @ngdoc function
  633 * @name angular.isDate
  634 * @module ng
  635 * @kind function
  636 *
  637 * @description
  638 * Determines if a value is a date.
  639 *
  640 * @param {*} value Reference to check.
  641 * @returns {boolean} True if `value` is a `Date`.
  642 */
  643function isDate(value) {
  644  return toString.call(value) === '[object Date]';
  645}
  646
  647
  648/**
  649 * @ngdoc function
  650 * @name angular.isArray
  651 * @module ng
  652 * @kind function
  653 *
  654 * @description
  655 * Determines if a reference is an `Array`.
  656 *
  657 * @param {*} value Reference to check.
  658 * @returns {boolean} True if `value` is an `Array`.
  659 */
  660var isArray = Array.isArray;
  661
  662/**
  663 * @ngdoc function
  664 * @name angular.isFunction
  665 * @module ng
  666 * @kind function
  667 *
  668 * @description
  669 * Determines if a reference is a `Function`.
  670 *
  671 * @param {*} value Reference to check.
  672 * @returns {boolean} True if `value` is a `Function`.
  673 */
  674function isFunction(value) {return typeof value === 'function';}
  675
  676
  677/**
  678 * Determines if a value is a regular expression object.
  679 *
  680 * @private
  681 * @param {*} value Reference to check.
  682 * @returns {boolean} True if `value` is a `RegExp`.
  683 */
  684function isRegExp(value) {
  685  return toString.call(value) === '[object RegExp]';
  686}
  687
  688
  689/**
  690 * Checks if `obj` is a window object.
  691 *
  692 * @private
  693 * @param {*} obj Object to check
  694 * @returns {boolean} True if `obj` is a window obj.
  695 */
  696function isWindow(obj) {
  697  return obj && obj.window === obj;
  698}
  699
  700
  701function isScope(obj) {
  702  return obj && obj.$evalAsync && obj.$watch;
  703}
  704
  705
  706function isFile(obj) {
  707  return toString.call(obj) === '[object File]';
  708}
  709
  710
  711function isFormData(obj) {
  712  return toString.call(obj) === '[object FormData]';
  713}
  714
  715
  716function isBlob(obj) {
  717  return toString.call(obj) === '[object Blob]';
  718}
  719
  720
  721function isBoolean(value) {
  722  return typeof value === 'boolean';
  723}
  724
  725
  726function isPromiseLike(obj) {
  727  return obj && isFunction(obj.then);
  728}
  729
  730
  731var TYPED_ARRAY_REGEXP = /^\[object (?:Uint8|Uint8Clamped|Uint16|Uint32|Int8|Int16|Int32|Float32|Float64)Array\]$/;
  732function isTypedArray(value) {
  733  return value && isNumber(value.length) && TYPED_ARRAY_REGEXP.test(toString.call(value));
  734}
  735
  736function isArrayBuffer(obj) {
  737  return toString.call(obj) === '[object ArrayBuffer]';
  738}
  739
  740
  741var trim = function(value) {
  742  return isString(value) ? value.trim() : value;
  743};
  744
  745// Copied from:
  746// http://docs.closure-library.googlecode.com/git/local_closure_goog_string_string.js.source.html#line1021
  747// Prereq: s is a string.
  748var escapeForRegexp = function(s) {
  749  return s.replace(/([-()\[\]{}+?*.$\^|,:#<!\\])/g, '\\$1').
  750           replace(/\x08/g, '\\x08');
  751};
  752
  753
  754/**
  755 * @ngdoc function
  756 * @name angular.isElement
  757 * @module ng
  758 * @kind function
  759 *
  760 * @description
  761 * Determines if a reference is a DOM element (or wrapped jQuery element).
  762 *
  763 * @param {*} value Reference to check.
  764 * @returns {boolean} True if `value` is a DOM element (or wrapped jQuery element).
  765 */
  766function isElement(node) {
  767  return !!(node &&
  768    (node.nodeName  // we are a direct element
  769    || (node.prop && node.attr && node.find)));  // we have an on and find method part of jQuery API
  770}
  771
  772/**
  773 * @param str 'key1,key2,...'
  774 * @returns {object} in the form of {key1:true, key2:true, ...}
  775 */
  776function makeMap(str) {
  777  var obj = {}, items = str.split(','), i;
  778  for (i = 0; i < items.length; i++) {
  779    obj[items[i]] = true;
  780  }
  781  return obj;
  782}
  783
  784
  785function nodeName_(element) {
  786  return lowercase(element.nodeName || (element[0] && element[0].nodeName));
  787}
  788
  789function includes(array, obj) {
  790  return Array.prototype.indexOf.call(array, obj) != -1;
  791}
  792
  793function arrayRemove(array, value) {
  794  var index = array.indexOf(value);
  795  if (index >= 0) {
  796    array.splice(index, 1);
  797  }
  798  return index;
  799}
  800
  801/**
  802 * @ngdoc function
  803 * @name angular.copy
  804 * @module ng
  805 * @kind function
  806 *
  807 * @description
  808 * Creates a deep copy of `source`, which should be an object or an array.
  809 *
  810 * * If no destination is supplied, a copy of the object or array is created.
  811 * * If a destination is provided, all of its elements (for arrays) or properties (for objects)
  812 *   are deleted and then all elements/properties from the source are copied to it.
  813 * * If `source` is not an object or array (inc. `null` and `undefined`), `source` is returned.
  814 * * If `source` is identical to 'destination' an exception will be thrown.
  815 *
  816 * @param {*} source The source that will be used to make a copy.
  817 *                   Can be any type, including primitives, `null`, and `undefined`.
  818 * @param {(Object|Array)=} destination Destination into which the source is copied. If
  819 *     provided, must be of the same type as `source`.
  820 * @returns {*} The copy or updated `destination`, if `destination` was specified.
  821 *
  822 * @example
  823 <example module="copyExample">
  824 <file name="index.html">
  825 <div ng-controller="ExampleController">
  826 <form novalidate class="simple-form">
  827 Name: <input type="text" ng-model="user.name" /><br />
  828 E-mail: <input type="email" ng-model="user.email" /><br />
  829 Gender: <input type="radio" ng-model="user.gender" value="male" />male
  830 <input type="radio" ng-model="user.gender" value="female" />female<br />
  831 <button ng-click="reset()">RESET</button>
  832 <button ng-click="update(user)">SAVE</button>
  833 </form>
  834 <pre>form = {{user | json}}</pre>
  835 <pre>master = {{master | json}}</pre>
  836 </div>
  837
  838 <script>
  839  angular.module('copyExample', [])
  840    .controller('ExampleController', ['$scope', function($scope) {
  841      $scope.master= {};
  842
  843      $scope.update = function(user) {
  844        // Example with 1 argument
  845        $scope.master= angular.copy(user);
  846      };
  847
  848      $scope.reset = function() {
  849        // Example with 2 arguments
  850        angular.copy($scope.master, $scope.user);
  851      };
  852
  853      $scope.reset();
  854    }]);
  855 </script>
  856 </file>
  857 </example>
  858 */
  859function copy(source, destination) {
  860  var stackSource = [];
  861  var stackDest = [];
  862
  863  if (destination) {
  864    if (isTypedArray(destination) || isArrayBuffer(destination)) {
  865      throw ngMinErr('cpta', "Can't copy! TypedArray destination cannot be mutated.");
  866    }
  867    if (source === destination) {
  868      throw ngMinErr('cpi', "Can't copy! Source and destination are identical.");
  869    }
  870
  871    // Empty the destination object
  872    if (isArray(destination)) {
  873      destination.length = 0;
  874    } else {
  875      forEach(destination, function(value, key) {
  876        if (key !== '$$hashKey') {
  877          delete destination[key];
  878        }
  879      });
  880    }
  881
  882    stackSource.push(source);
  883    stackDest.push(destination);
  884    return copyRecurse(source, destination);
  885  }
  886
  887  return copyElement(source);
  888
  889  function copyRecurse(source, destination) {
  890    var h = destination.$$hashKey;
  891    var key;
  892    if (isArray(source)) {
  893      for (var i = 0, ii = source.length; i < ii; i++) {
  894        destination.push(copyElement(source[i]));
  895      }
  896    } else if (isBlankObject(source)) {
  897      // createMap() fast path --- Safe to avoid hasOwnProperty check because prototype chain is empty
  898      for (key in source) {
  899        destination[key] = copyElement(source[key]);
  900      }
  901    } else if (source && typeof source.hasOwnProperty === 'function') {
  902      // Slow path, which must rely on hasOwnProperty
  903      for (key in source) {
  904        if (source.hasOwnProperty(key)) {
  905          destination[key] = copyElement(source[key]);
  906        }
  907      }
  908    } else {
  909      // Slowest path --- hasOwnProperty can't be called as a method
  910      for (key in source) {
  911        if (hasOwnProperty.call(source, key)) {
  912          destination[key] = copyElement(source[key]);
  913        }
  914      }
  915    }
  916    setHashKey(destination, h);
  917    return destination;
  918  }
  919
  920  function copyElement(source) {
  921    // Simple values
  922    if (!isObject(source)) {
  923      return source;
  924    }
  925
  926    // Already copied values
  927    var index = stackSource.indexOf(source);
  928    if (index !== -1) {
  929      return stackDest[index];
  930    }
  931
  932    if (isWindow(source) || isScope(source)) {
  933      throw ngMinErr('cpws',
  934        "Can't copy! Making copies of Window or Scope instances is not supported.");
  935    }
  936
  937    var needsRecurse = false;
  938    var destination = copyType(source);
  939
  940    if (destination === undefined) {
  941      destination = isArray(source) ? [] : Object.create(getPrototypeOf(source));
  942      needsRecurse = true;
  943    }
  944
  945    stackSource.push(source);
  946    stackDest.push(destination);
  947
  948    return needsRecurse
  949      ? copyRecurse(source, destination)
  950      : destination;
  951  }
  952
  953  function copyType(source) {
  954    switch (toString.call(source)) {
  955      case '[object Int8Array]':
  956      case '[object Int16Array]':
  957      case '[object Int32Array]':
  958      case '[object Float32Array]':
  959      case '[object Float64Array]':
  960      case '[object Uint8Array]':
  961      case '[object Uint8ClampedArray]':
  962      case '[object Uint16Array]':
  963      case '[object Uint32Array]':
  964        return new source.constructor(copyElement(source.buffer));
  965
  966      case '[object ArrayBuffer]':
  967        //Support: IE10
  968        if (!source.slice) {
  969          var copied = new ArrayBuffer(source.byteLength);
  970          new Uint8Array(copied).set(new Uint8Array(source));
  971          return copied;
  972        }
  973        return source.slice(0);
  974
  975      case '[object Boolean]':
  976      case '[object Number]':
  977      case '[object String]':
  978      case '[object Date]':
  979        return new source.constructor(source.valueOf());
  980
  981      case '[object RegExp]':
  982        var re = new RegExp(source.source, source.toString().match(/[^\/]*$/)[0]);
  983        re.lastIndex = source.lastIndex;
  984        return re;
  985
  986      case '[object Blob]':
  987        return new source.constructor([source], {type: source.type});
  988    }
  989
  990    if (isFunction(source.cloneNode)) {
  991      return source.cloneNode(true);
  992    }
  993  }
  994}
  995
  996/**
  997 * Creates a shallow copy of an object, an array or a primitive.
  998 *
  999 * Assumes that there are no proto properties for objects.
 1000 */
 1001function shallowCopy(src, dst) {
 1002  if (isArray(src)) {
 1003    dst = dst || [];
 1004
 1005    for (var i = 0, ii = src.length; i < ii; i++) {
 1006      dst[i] = src[i];
 1007    }
 1008  } else if (isObject(src)) {
 1009    dst = dst || {};
 1010
 1011    for (var key in src) {
 1012      if (!(key.charAt(0) === '$' && key.charAt(1) === '$')) {
 1013        dst[key] = src[key];
 1014      }
 1015    }
 1016  }
 1017
 1018  return dst || src;
 1019}
 1020
 1021
 1022/**
 1023 * @ngdoc function
 1024 * @name angular.equals
 1025 * @module ng
 1026 * @kind function
 1027 *
 1028 * @description
 1029 * Determines if two objects or two values are equivalent. Supports value types, regular
 1030 * expressions, arrays and objects.
 1031 *
 1032 * Two objects or values are considered equivalent if at least one of the following is true:
 1033 *
 1034 * * Both objects or values pass `===` comparison.
 1035 * * Both objects or values are of the same type and all of their properties are equal by
 1036 *   comparing them with `angular.equals`.
 1037 * * Both values are NaN. (In JavaScript, NaN == NaN => false. But we consider two NaN as equal)
 1038 * * Both values represent the same regular expression (In JavaScript,
 1039 *   /abc/ == /abc/ => false. But we consider two regular expressions as equal when their textual
 1040 *   representation matches).
 1041 *
 1042 * During a property comparison, properties of `function` type and properties with names
 1043 * that begin with `$` are ignored.
 1044 *
 1045 * Scope and DOMWindow objects are being compared only by identify (`===`).
 1046 *
 1047 * @param {*} o1 Object or value to compare.
 1048 * @param {*} o2 Object or value to compare.
 1049 * @returns {boolean} True if arguments are equal.
 1050 */
 1051function equals(o1, o2) {
 1052  if (o1 === o2) return true;
 1053  if (o1 === null || o2 === null) return false;
 1054  if (o1 !== o1 && o2 !== o2) return true; // NaN === NaN
 1055  var t1 = typeof o1, t2 = typeof o2, length, key, keySet;
 1056  if (t1 == t2 && t1 == 'object') {
 1057    if (isArray(o1)) {
 1058      if (!isArray(o2)) return false;
 1059      if ((length = o1.length) == o2.length) {
 1060        for (key = 0; key < length; key++) {
 1061          if (!equals(o1[key], o2[key])) return false;
 1062        }
 1063        return true;
 1064      }
 1065    } else if (isDate(o1)) {
 1066      if (!isDate(o2)) return false;
 1067      return equals(o1.getTime(), o2.getTime());
 1068    } else if (isRegExp(o1)) {
 1069      if (!isRegExp(o2)) return false;
 1070      return o1.toString() == o2.toString();
 1071    } else {
 1072      if (isScope(o1) || isScope(o2) || isWindow(o1) || isWindow(o2) ||
 1073        isArray(o2) || isDate(o2) || isRegExp(o2)) return false;
 1074      keySet = createMap();
 1075      for (key in o1) {
 1076        if (key.charAt(0) === '$' || isFunction(o1[key])) continue;
 1077        if (!equals(o1[key], o2[key])) return false;
 1078        keySet[key] = true;
 1079      }
 1080      for (key in o2) {
 1081        if (!(key in keySet) &&
 1082            key.charAt(0) !== '$' &&
 1083            isDefined(o2[key]) &&
 1084            !isFunction(o2[key])) return false;
 1085      }
 1086      return true;
 1087    }
 1088  }
 1089  return false;
 1090}
 1091
 1092var csp = function() {
 1093  if (!isDefined(csp.rules)) {
 1094
 1095
 1096    var ngCspElement = (document.querySelector('[ng-csp]') ||
 1097                    document.querySelector('[data-ng-csp]'));
 1098
 1099    if (ngCspElement) {
 1100      var ngCspAttribute = ngCspElement.getAttribute('ng-csp') ||
 1101                    ngCspElement.getAttribute('data-ng-csp');
 1102      csp.rules = {
 1103        noUnsafeEval: !ngCspAttribute || (ngCspAttribute.indexOf('no-unsafe-eval') !== -1),
 1104        noInlineStyle: !ngCspAttribute || (ngCspAttribute.indexOf('no-inline-style') !== -1)
 1105      };
 1106    } else {
 1107      csp.rules = {
 1108        noUnsafeEval: noUnsafeEval(),
 1109        noInlineStyle: false
 1110      };
 1111    }
 1112  }
 1113
 1114  return csp.rules;
 1115
 1116  function noUnsafeEval() {
 1117    try {
 1118      /* jshint -W031, -W054 */
 1119      new Function('');
 1120      /* jshint +W031, +W054 */
 1121      return false;
 1122    } catch (e) {
 1123      return true;
 1124    }
 1125  }
 1126};
 1127
 1128/**
 1129 * @ngdoc directive
 1130 * @module ng
 1131 * @name ngJq
 1132 *
 1133 * @element ANY
 1134 * @param {string=} ngJq the name of the library available under `window`
 1135 * to be used for angular.element
 1136 * @description
 1137 * Use this directive to force the angular.element library.  This should be
 1138 * used to force either jqLite by leaving ng-jq blank or setting the name of
 1139 * the jquery variable under window (eg. jQuery).
 1140 *
 1141 * Since angular looks for this directive when it is loaded (doesn't wait for the
 1142 * DOMContentLoaded event), it must be placed on an element that comes before the script
 1143 * which loads angular. Also, only the first instance of `ng-jq` will be used and all
 1144 * others ignored.
 1145 *
 1146 * @example
 1147 * This example shows how to force jqLite using the `ngJq` directive to the `html` tag.
 1148 ```html
 1149 <!doctype html>
 1150 <html ng-app ng-jq>
 1151 ...
 1152 ...
 1153 </html>
 1154 ```
 1155 * @example
 1156 * This example shows how to use a jQuery based library of a different name.
 1157 * The library name must be available at the top most 'window'.
 1158 ```html
 1159 <!doctype html>
 1160 <html ng-app ng-jq="jQueryLib">
 1161 ...
 1162 ...
 1163 </html>
 1164 ```
 1165 */
 1166var jq = function() {
 1167  if (isDefined(jq.name_)) return jq.name_;
 1168  var el;
 1169  var i, ii = ngAttrPrefixes.length, prefix, name;
 1170  for (i = 0; i < ii; ++i) {
 1171    prefix = ngAttrPrefixes[i];
 1172    if (el = document.querySelector('[' + prefix.replace(':', '\\:') + 'jq]')) {
 1173      name = el.getAttribute(prefix + 'jq');
 1174      break;
 1175    }
 1176  }
 1177
 1178  return (jq.name_ = name);
 1179};
 1180
 1181function concat(array1, array2, index) {
 1182  return array1.concat(slice.call(array2, index));
 1183}
 1184
 1185function sliceArgs(args, startIndex) {
 1186  return slice.call(args, startIndex || 0);
 1187}
 1188
 1189
 1190/* jshint -W101 */
 1191/**
 1192 * @ngdoc function
 1193 * @name angular.bind
 1194 * @module ng
 1195 * @kind function
 1196 *
 1197 * @description
 1198 * Returns a function which calls function `fn` bound to `self` (`self` becomes the `this` for
 1199 * `fn`). You can supply optional `args` that are prebound to the function. This feature is also
 1200 * known as [partial application](http://en.wikipedia.org/wiki/Partial_application), as
 1201 * distinguished from [function currying](http://en.wikipedia.org/wiki/Currying#Contrast_with_partial_function_application).
 1202 *
 1203 * @param {Object} self Context which `fn` should be evaluated in.
 1204 * @param {function()} fn Function to be bound.
 1205 * @param {...*} args Optional arguments to be prebound to the `fn` function call.
 1206 * @returns {function()} Function that wraps the `fn` with all the specified bindings.
 1207 */
 1208/* jshint +W101 */
 1209function bind(self, fn) {
 1210  var curryArgs = arguments.length > 2 ? sliceArgs(arguments, 2) : [];
 1211  if (isFunction(fn) && !(fn instanceof RegExp)) {
 1212    return curryArgs.length
 1213      ? function() {
 1214          return arguments.length
 1215            ? fn.apply(self, concat(curryArgs, arguments, 0))
 1216            : fn.apply(self, curryArgs);
 1217        }
 1218      : function() {
 1219          return arguments.length
 1220            ? fn.apply(self, arguments)
 1221            : fn.call(self);
 1222        };
 1223  } else {
 1224    // in IE, native methods are not functions so they cannot be bound (note: they don't need to be)
 1225    return fn;
 1226  }
 1227}
 1228
 1229
 1230function toJsonReplacer(key, value) {
 1231  var val = value;
 1232
 1233  if (typeof key === 'string' && key.charAt(0) === '$' && key.charAt(1) === '$') {
 1234    val = undefined;
 1235  } else if (isWindow(value)) {
 1236    val = '$WINDOW';
 1237  } else if (value &&  document === value) {
 1238    val = '$DOCUMENT';
 1239  } else if (isScope(value)) {
 1240    val = '$SCOPE';
 1241  }
 1242
 1243  return val;
 1244}
 1245
 1246
 1247/**
 1248 * @ngdoc function
 1249 * @name angular.toJson
 1250 * @module ng
 1251 * @kind function
 1252 *
 1253 * @description
 1254 * Serializes input into a JSON-formatted string. Properties with leading $$ characters will be
 1255 * stripped since angular uses this notation internally.
 1256 *
 1257 * @param {Object|Array|Date|string|number} obj Input to be serialized into JSON.
 1258 * @param {boolean|number} [pretty=2] If set to true, the JSON output will contain newlines and whitespace.
 1259 *    If set to an integer, the JSON output will contain that many spaces per indentation.
 1260 * @returns {string|undefined} JSON-ified string representing `obj`.
 1261 */
 1262function toJson(obj, pretty) {
 1263  if (isUndefined(obj)) return undefined;
 1264  if (!isNumber(pretty)) {
 1265    pretty = pretty ? 2 : null;
 1266  }
 1267  return JSON.stringify(obj, toJsonReplacer, pretty);
 1268}
 1269
 1270
 1271/**
 1272 * @ngdoc function
 1273 * @name angular.fromJson
 1274 * @module ng
 1275 * @kind function
 1276 *
 1277 * @description
 1278 * Deserializes a JSON string.
 1279 *
 1280 * @param {string} json JSON string to deserialize.
 1281 * @returns {Object|Array|string|number} Deserialized JSON string.
 1282 */
 1283function fromJson(json) {
 1284  return isString(json)
 1285      ? JSON.parse(json)
 1286      : json;
 1287}
 1288
 1289
 1290var ALL_COLONS = /:/g;
 1291function timezoneToOffset(timezone, fallback) {
 1292  // IE/Edge do not "understand" colon (`:`) in timezone
 1293  timezone = timezone.replace(ALL_COLONS, '');
 1294  var requestedTimezoneOffset = Date.parse('Jan 01, 1970 00:00:00 ' + timezone) / 60000;
 1295  return isNaN(requestedTimezoneOffset) ? fallback : requestedTimezoneOffset;
 1296}
 1297
 1298
 1299function addDateMinutes(date, minutes) {
 1300  date = new Date(date.getTime());
 1301  date.setMinutes(date.getMinutes() + minutes);
 1302  return date;
 1303}
 1304
 1305
 1306function convertTimezoneToLocal(date, timezone, reverse) {
 1307  reverse = reverse ? -1 : 1;
 1308  var dateTimezoneOffset = date.getTimezoneOffset();
 1309  var timezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);
 1310  return addDateMinutes(date, reverse * (timezoneOffset - dateTimezoneOffset));
 1311}
 1312
 1313
 1314/**
 1315 * @returns {string} Returns the string representation of the element.
 1316 */
 1317function startingTag(element) {
 1318  element = jqLite(element).clone();
 1319  try {
 1320    // turns out IE does not let you set .html() on elements which
 1321    // are not allowed to have children. So we just ignore it.
 1322    element.empty();
 1323  } catch (e) {}
 1324  var elemHtml = jqLite('<div>').append(element).html();
 1325  try {
 1326    return element[0].nodeType === NODE_TYPE_TEXT ? lowercase(elemHtml) :
 1327        elemHtml.
 1328          match(/^(<[^>]+>)/)[1].
 1329          replace(/^<([\w\-]+)/, function(match, nodeName) {return '<' + lowercase(nodeName);});
 1330  } catch (e) {
 1331    return lowercase(elemHtml);
 1332  }
 1333
 1334}
 1335
 1336
 1337/////////////////////////////////////////////////
 1338
 1339/**
 1340 * Tries to decode the URI component without throwing an exception.
 1341 *
 1342 * @private
 1343 * @param str value potential URI component to check.
 1344 * @returns {boolean} True if `value` can be decoded
 1345 * with the decodeURIComponent function.
 1346 */
 1347function tryDecodeURIComponent(value) {
 1348  try {
 1349    return decodeURIComponent(value);
 1350  } catch (e) {
 1351    // Ignore any invalid uri component
 1352  }
 1353}
 1354
 1355
 1356/**
 1357 * Parses an escaped url query string into key-value pairs.
 1358 * @returns {Object.<string,boolean|Array>}
 1359 */
 1360function parseKeyValue(/**string*/keyValue) {
 1361  var obj = {};
 1362  forEach((keyValue || "").split('&'), function(keyValue) {
 1363    var splitPoint, key, val;
 1364    if (keyValue) {
 1365      key = keyValue = keyValue.replace(/\+/g,'%20');
 1366      splitPoint = keyValue.indexOf('=');
 1367      if (splitPoint !== -1) {
 1368        key = keyValue.substring(0, splitPoint);
 1369        val = keyValue.substring(splitPoint + 1);
 1370      }
 1371      key = tryDecodeURIComponent(key);
 1372      if (isDefined(key)) {
 1373        val = isDefined(val) ? tryDecodeURIComponent(val) : true;
 1374        if (!hasOwnProperty.call(obj, key)) {
 1375          obj[key] = val;
 1376        } else if (isArray(obj[key])) {
 1377          obj[key].push(val);
 1378        } else {
 1379          obj[key] = [obj[key],val];
 1380        }
 1381      }
 1382    }
 1383  });
 1384  return obj;
 1385}
 1386
 1387function toKeyValue(obj) {
 1388  var parts = [];
 1389  forEach(obj, function(value, key) {
 1390    if (isArray(value)) {
 1391      forEach(value, function(arrayValue) {
 1392        parts.push(encodeUriQuery(key, true) +
 1393                   (arrayValue === true ? '' : '=' + encodeUriQuery(arrayValue, true)));
 1394      });
 1395    } else {
 1396    parts.push(encodeUriQuery(key, true) +
 1397               (value === true ? '' : '=' + encodeUriQuery(value, true)));
 1398    }
 1399  });
 1400  return parts.length ? parts.join('&') : '';
 1401}
 1402
 1403
 1404/**
 1405 * We need our custom method because encodeURIComponent is too aggressive and doesn't follow
 1406 * http://www.ietf.org/rfc/rfc3986.txt with regards to the character set (pchar) allowed in path
 1407 * segments:
 1408 *    segment       = *pchar
 1409 *    pchar         = unreserved / pct-encoded / sub-delims / ":" / "@"
 1410 *    pct-encoded   = "%" HEXDIG HEXDIG
 1411 *    unreserved    = ALPHA / DIGIT / "-" / "." / "_" / "~"
 1412 *    sub-delims    = "!" / "$" / "&" / "'" / "(" / ")"
 1413 *                     / "*" / "+" / "," / ";" / "="
 1414 */
 1415function encodeUriSegment(val) {
 1416  return encodeUriQuery(val, true).
 1417             replace(/%26/gi, '&').
 1418             replace(/%3D/gi, '=').
 1419             replace(/%2B/gi, '+');
 1420}
 1421
 1422
 1423/**
 1424 * This method is intended for encoding *key* or *value* parts of query component. We need a custom
 1425 * method because encodeURIComponent is too aggressive and encodes stuff that doesn't have to be
 1426 * encoded per http://tools.ietf.org/html/rfc3986:
 1427 *    query       = *( pchar / "/" / "?" )
 1428 *    pchar         = unreserved / pct-encoded / sub-delims / ":" / "@"
 1429 *    unreserved    = ALPHA / DIGIT / "-" / "." / "_" / "~"
 1430 *    pct-encoded   = "%" HEXDIG HEXDIG
 1431 *    sub-delims    = "!" / "$" / "&" / "'" / "(" / ")"
 1432 *                     / "*" / "+" / "," / ";" / "="
 1433 */
 1434function encodeUriQuery(val, pctEncodeSpaces) {
 1435  return encodeURIComponent(val).
 1436             replace(/%40/gi, '@').
 1437             replace(/%3A/gi, ':').
 1438             replace(/%24/g, '$').
 1439             replace(/%2C/gi, ',').
 1440             replace(/%3B/gi, ';').
 1441             replace(/%20/g, (pctEncodeSpaces ? '%20' : '+'));
 1442}
 1443
 1444var ngAttrPrefixes = ['ng-', 'data-ng-', 'ng:', 'x-ng-'];
 1445
 1446function getNgAttribute(element, ngAttr) {
 1447  var attr, i, ii = ngAttrPrefixes.length;
 1448  for (i = 0; i < ii; ++i) {
 1449    attr = ngAttrPrefixes[i] + ngAttr;
 1450    if (isString(attr = element.getAttribute(attr))) {
 1451      return attr;
 1452    }
 1453  }
 1454  return null;
 1455}
 1456
 1457/**
 1458 * @ngdoc directive
 1459 * @name ngApp
 1460 * @module ng
 1461 *
 1462 * @element ANY
 1463 * @param {angular.Module} ngApp an optional application
 1464 *   {@link angular.module module} name to load.
 1465 * @param {boolean=} ngStrictDi if this attribute is present on the app element, the injector will be
 1466 *   created in "strict-di" mode. This means that the application will fail to invoke functions which
 1467 *   do not use explicit function annotation (and are thus unsuitable for minification), as described
 1468 *   in {@link guide/di the Dependency Injection guide}, and useful debugging info will assist in
 1469 *   tracking down the root of these bugs.
 1470 *
 1471 * @description
 1472 *
 1473 * Use this directive to **auto-bootstrap** an AngularJS application. The `ngApp` directive
 1474 * designates the **root element** of the application and is typically placed near the root element
 1475 * of the page - e.g. on the `<body>` or `<html>` tags.
 1476 *
 1477 * There are a few things to keep in mind when using `ngApp`:
 1478 * - only one AngularJS application can be auto-bootstrapped per HTML document. The first `ngApp`
 1479 *   found in the document will be used to define the root element to auto-bootstrap as an
 1480 *   application. To run multiple applications in an HTML document you must manually bootstrap them using
 1481 *   {@link angular.bootstrap} instead.
 1482 * - AngularJS applications cannot be nested within each other.
 1483 * - Do not use a directive that uses {@link ng.$compile#transclusion transclusion} on the same element as `ngApp`.
 1484 *   This includes directives such as {@link ng.ngIf `ngIf`}, {@link ng.ngInclude `ngInclude`} and
 1485 *   {@link ngRoute.ngView `ngView`}.
 1486 *   Doing this misplaces the app {@link ng.$rootElement `$rootElement`} and the app's {@link auto.$injector injector},
 1487 *   causing animations to stop working and making the injector inaccessible from outside the app.
 1488 *
 1489 * You can specify an **AngularJS module** to be used as the root module for the application.  This
 1490 * module will be loaded into the {@link auto.$injector} when the application is bootstrapped. It
 1491 * should contain the application code needed or have dependencies on other modules that will
 1492 * contain the code. See {@link angular.module} for more information.
 1493 *
 1494 * In the example below if the `ngApp` directive were not placed on the `html` element then the
 1495 * document would not be compiled, the `AppController` would not be instantiated and the `{{ a+b }}`
 1496 * would not be resolved to `3`.
 1497 *
 1498 * `ngApp` is the easiest, and most common way to bootstrap an application.
 1499 *
 1500 <example module="ngAppDemo">
 1501   <file name="index.html">
 1502   <div ng-controller="ngAppDemoController">
 1503     I can add: {{a}} + {{b}} =  {{ a+b }}
 1504   </div>
 1505   </file>
 1506   <file name="script.js">
 1507   angular.module('ngAppDemo', []).controller('ngAppDemoController', function($scope) {
 1508     $scope.a = 1;
 1509     $scope.b = 2;
 1510   });
 1511   </file>
 1512 </example>
 1513 *
 1514 * Using `ngStrictDi`, you would see something like this:
 1515 *
 1516 <example ng-app-included="true">
 1517   <file name="index.html">
 1518   <div ng-app="ngAppStrictDemo" ng-strict-di>
 1519       <div ng-controller="GoodController1">
 1520           I can add: {{a}} + {{b}} =  {{ a+b }}
 1521
 1522           <p>This renders because the controller does not fail to
 1523              instantiate, by using explicit annotation style (see
 1524              script.js for details)
 1525           </p>
 1526       </div>
 1527
 1528       <div ng-controller="GoodController2">
 1529           Name: <input ng-model="name"><br />
 1530           Hello, {{name}}!
 1531
 1532           <p>This renders because the controller does not fail to
 1533              instantiate, by using explicit annotation style
 1534              (see script.js for details)
 1535           </p>
 1536       </div>
 1537
 1538       <div ng-controller="BadController">
 1539           I can add: {{a}} + {{b}} =  {{ a+b }}
 1540
 1541           <p>The controller could not be instantiated, due to relying
 1542              on automatic function annotations (which are disabled in
 1543              strict mode). As such, the content of this section is not
 1544              interpolated, and there should be an error in your web console.
 1545           </p>
 1546       </div>
 1547   </div>
 1548   </file>
 1549   <file name="script.js">
 1550   angular.module('ngAppStrictDemo', [])
 1551     // BadController will fail to instantiate, due to relying on automatic function annotation,
 1552     // rather than an explicit annotation
 1553     .controller('BadController', function($scope) {
 1554       $scope.a = 1;
 1555       $scope.b = 2;
 1556     })
 1557     // Unlike BadController, GoodController1 and GoodController2 will not fail to be instantiated,
 1558     // due to using explicit annotations using the array style and $inject property, respectively.
 1559     .controller('GoodController1', ['$scope', function($scope) {
 1560       $scope.a = 1;
 1561       $scope.b = 2;
 1562     }])
 1563     .controller('GoodController2', GoodController2);
 1564     function GoodController2($scope) {
 1565       $scope.name = "World";
 1566     }
 1567     GoodController2.$inject = ['$scope'];
 1568   </file>
 1569   <file name="style.css">
 1570   div[ng-controller] {
 1571       margin-bottom: 1em;
 1572       -webkit-border-radius: 4px;
 1573       border-radius: 4px;
 1574       border: 1px solid;
 1575       padding: .5em;
 1576   }
 1577   div[ng-controller^=Good] {
 1578       border-color: #d6e9c6;
 1579       background-color: #dff0d8;
 1580       color: #3c763d;
 1581   }
 1582   div[ng-controller^=Bad] {
 1583       border-color: #ebccd1;
 1584       background-color: #f2dede;
 1585       color: #a94442;
 1586       margin-bottom: 0;
 1587   }
 1588   </file>
 1589 </example>
 1590 */
 1591function angularInit(element, bootstrap) {
 1592  var appElement,
 1593      module,
 1594      config = {};
 1595
 1596  // The element `element` has priority over any other element
 1597  forEach(ngAttrPrefixes, function(prefix) {
 1598    var name = prefix + 'app';
 1599
 1600    if (!appElement && element.hasAttribute && element.hasAttribute(name)) {
 1601      appElement = element;
 1602      module = element.getAttribute(name);
 1603    }
 1604  });
 1605  forEach(ngAttrPrefixes, function(prefix) {
 1606    var name = prefix + 'app';
 1607    var candidate;
 1608
 1609    if (!appElement && (candidate = element.querySelector('[' + name.replace(':', '\\:') + ']'))) {
 1610      appElement = candidate;
 1611      module = candidate.getAttribute(name);
 1612    }
 1613  });
 1614  if (appElement) {
 1615    config.strictDi = getNgAttribute(appElement, "strict-di") !== null;
 1616    bootstrap(appElement, module ? [module] : [], config);
 1617  }
 1618}
 1619
 1620/**
 1621 * @ngdoc function
 1622 * @name angular.bootstrap
 1623 * @module ng
 1624 * @description
 1625 * Use this function to manually start up angular application.
 1626 *
 1627 * For more information, see the {@link guide/bootstrap Bootstrap guide}.
 1628 *
 1629 * Angular will detect if it has been loaded into the browser more than once and only allow the
 1630 * first loaded script to be bootstrapped and will report a warning to the browser console for
 1631 * each of the subsequent scripts. This prevents strange results in applications, where otherwise
 1632 * multiple instances of Angular try to work on the DOM.
 1633 *
 1634 * <div class="alert alert-warning">
 1635 * **Note:** Protractor based end-to-end tests cannot use this function to bootstrap manually.
 1636 * They must use {@link ng.directive:ngApp ngApp}.
 1637 * </div>
 1638 *
 1639 * <div class="alert alert-warning">
 1640 * **Note:** Do not bootstrap the app on an element with a directive that uses {@link ng.$compile#transclusion transclusion},
 1641 * such as {@link ng.ngIf `ngIf`}, {@link ng.ngInclude `ngInclude`} and {@link ngRoute.ngView `ngView`}.
 1642 * Doing this misplaces the app {@link ng.$rootElement `$rootElement`} and the app's {@link auto.$injector injector},
 1643 * causing animations to stop working and making the injector inaccessible from outside the app.
 1644 * </div>
 1645 *
 1646 * ```html
 1647 * <!doctype html>
 1648 * <html>
 1649 * <body>
 1650 * <div ng-controller="WelcomeController">
 1651 *   {{greeting}}
 1652 * </div>
 1653 *
 1654 * <script src="angular.js"></script>
 1655 * <script>
 1656 *   var app = angular.module('demo', [])
 1657 *   .controller('WelcomeController', function($scope) {
 1658 *       $scope.greeting = 'Welcome!';
 1659 *   });
 1660 *   angular.bootstrap(document, ['demo']);
 1661 * </script>
 1662 * </body>
 1663 * </html>
 1664 * ```
 1665 *
 1666 * @param {DOMElement} element DOM element which is the root of angular application.
 1667 * @param {Array<String|Function|Array>=} modules an array of modules to load into the application.
 1668 *     Each item in the array should be the name of a predefined module or a (DI annotated)
 1669 *     function that will be invoked by the injector as a `config` block.
 1670 *     See: {@link angular.module modules}
 1671 * @param {Object=} config an object for defining configuration options for the application. The
 1672 *     following keys are supported:
 1673 *
 1674 * * `strictDi` - disable automatic function annotation for the application. This is meant to
 1675 *   assist in finding bugs which break minified code. Defaults to `false`.
 1676 *
 1677 * @returns {auto.$injector} Returns the newly created injector for this app.
 1678 */
 1679function bootstrap(element, modules, config) {
 1680  if (!isObject(config)) config = {};
 1681  var defaultConfig = {
 1682    strictDi: false
 1683  };
 1684  config = extend(defaultConfig, config);
 1685  var doBootstrap = function() {
 1686    element = jqLite(element);
 1687
 1688    if (element.injector()) {
 1689      var tag = (element[0] === document) ? 'document' : startingTag(element);
 1690      //Encode angle brackets to prevent input from being sanitized to empty string #8683
 1691      throw ngMinErr(
 1692          'btstrpd',
 1693          "App Already Bootstrapped with this Element '{0}'",
 1694          tag.replace(/</,'&lt;').replace(/>/,'&gt;'));
 1695    }
 1696
 1697    modules = modules || [];
 1698    modules.unshift(['$provide', function($provide) {
 1699      $provide.value('$rootElement', element);
 1700    }]);
 1701
 1702    if (config.debugInfoEnabled) {
 1703      // Pushing so that this overrides `debugInfoEnabled` setting defined in user's `modules`.
 1704      modules.push(['$compileProvider', function($compileProvider) {
 1705        $compileProvider.debugInfoEnabled(true);
 1706      }]);
 1707    }
 1708
 1709    modules.unshift('ng');
 1710    var injector = createInjector(modules, config.strictDi);
 1711    injector.invoke(['$rootScope', '$rootElement', '$compile', '$injector',
 1712       function bootstrapApply(scope, element, compile, injector) {
 1713        scope.$apply(function() {
 1714          element.data('$injector', injector);
 1715          compile(element)(scope);
 1716        });
 1717      }]
 1718    );
 1719    return injector;
 1720  };
 1721
 1722  var NG_ENABLE_DEBUG_INFO = /^NG_ENABLE_DEBUG_INFO!/;
 1723  var NG_DEFER_BOOTSTRAP = /^NG_DEFER_BOOTSTRAP!/;
 1724
 1725  if (window && NG_ENABLE_DEBUG_INFO.test(window.name)) {
 1726    config.debugInfoEnabled = true;
 1727    window.name = window.name.replace(NG_ENABLE_DEBUG_INFO, '');
 1728  }
 1729
 1730  if (window && !NG_DEFER_BOOTSTRAP.test(window.name)) {
 1731    return doBootstrap();
 1732  }
 1733
 1734  window.name = window.name.replace(NG_DEFER_BOOTSTRAP, '');
 1735  angular.resumeBootstrap = function(extraModules) {
 1736    forEach(extraModules, function(module) {
 1737      modules.push(module);
 1738    });
 1739    return doBootstrap();
 1740  };
 1741
 1742  if (isFunction(angular.resumeDeferredBootstrap)) {
 1743    angular.resumeDeferredBootstrap();
 1744  }
 1745}
 1746
 1747/**
 1748 * @ngdoc function
 1749 * @name angular.reloadWithDebugInfo
 1750 * @module ng
 1751 * @description
 1752 * Use this function to reload the current application with debug information turned on.
 1753 * This takes precedence over a call to `$compileProvider.debugInfoEnabled(false)`.
 1754 *
 1755 * See {@link ng.$compileProvider#debugInfoEnabled} for more.
 1756 */
 1757function reloadWithDebugInfo() {
 1758  window.name = 'NG_ENABLE_DEBUG_INFO!' + window.name;
 1759  window.location.reload();
 1760}
 1761
 1762/**
 1763 * @name angular.getTestability
 1764 * @module ng
 1765 * @description
 1766 * Get the testability service for the instance of Angular on the given
 1767 * element.
 1768 * @param {DOMElement} element DOM element which is the root of angular application.
 1769 */
 1770function getTestability(rootElement) {
 1771  var injector = angular.element(rootElement).injector();
 1772  if (!injector) {
 1773    throw ngMinErr('test',
 1774      'no injector found for element argument to getTestability');
 1775  }
 1776  return injector.get('$$testability');
 1777}
 1778
 1779var SNAKE_CASE_REGEXP = /[A-Z]/g;
 1780function snake_case(name, separator) {
 1781  separator = separator || '_';
 1782  return name.replace(SNAKE_CASE_REGEXP, function(letter, pos) {
 1783    return (pos ? separator : '') + letter.toLowerCase();
 1784  });
 1785}
 1786
 1787var bindJQueryFired = false;
 1788function bindJQuery() {
 1789  var originalCleanData;
 1790
 1791  if (bindJQueryFired) {
 1792    return;
 1793  }
 1794
 1795  // bind to jQuery if present;
 1796  var jqName = jq();
 1797  jQuery = isUndefined(jqName) ? window.jQuery :   // use jQuery (if present)
 1798           !jqName             ? undefined     :   // use jqLite
 1799                                 window[jqName];   // use jQuery specified by `ngJq`
 1800
 1801  // Use jQuery if it exists with proper functionality, otherwise default to us.
 1802  // Angular 1.2+ requires jQuery 1.7+ for on()/off() support.
 1803  // Angular 1.3+ technically requires at least jQuery 2.1+ but it may work with older
 1804  // versions. It will not work for sure with jQuery <1.7, though.
 1805  if (jQuery && jQuery.fn.on) {
 1806    jqLite = jQuery;
 1807    extend(jQuery.fn, {
 1808      scope: JQLitePrototype.scope,
 1809      isolateScope: JQLitePrototype.isolateScope,
 1810      controller: JQLitePrototype.controller,
 1811      injector: JQLitePrototype.injector,
 1812      inheritedData: JQLitePrototype.inheritedData
 1813    });
 1814
 1815    // All nodes removed from the DOM via various jQuery APIs like .remove()
 1816    // are passed through jQuery.cleanData. Monkey-patch this method to fire
 1817    // the $destroy event on all removed nodes.
 1818    originalCleanData = jQuery.cleanData;
 1819    jQuery.cleanData = function(elems) {
 1820      var events;
 1821      for (var i = 0, elem; (elem = elems[i]) != null; i++) {
 1822        events = jQuery._data(elem, "events");
 1823        if (events && events.$destroy) {
 1824          jQuery(elem).triggerHandler('$destroy');
 1825        }
 1826      }
 1827      originalCleanData(elems);
 1828    };
 1829  } else {
 1830    jqLite = JQLite;
 1831  }
 1832
 1833  angular.element = jqLite;
 1834
 1835  // Prevent double-proxying.
 1836  bindJQueryFired = true;
 1837}
 1838
 1839/**
 1840 * throw error if the argument is falsy.
 1841 */
 1842function assertArg(arg, name, reason) {
 1843  if (!arg) {
 1844    throw ngMinErr('areq', "Argument '{0}' is {1}", (name || '?'), (reason || "required"));
 1845  }
 1846  return arg;
 1847}
 1848
 1849function assertArgFn(arg, name, acceptArrayAnnotation) {
 1850  if (acceptArrayAnnotation && isArray(arg)) {
 1851      arg = arg[arg.length - 1];
 1852  }
 1853
 1854  assertArg(isFunction(arg), name, 'not a function, got ' +
 1855      (arg && typeof arg === 'object' ? arg.constructor.name || 'Object' : typeof arg));
 1856  return arg;
 1857}
 1858
 1859/**
 1860 * throw error if the name given is hasOwnProperty
 1861 * @param  {String} name    the name to test
 1862 * @param  {String} context the context in which the name is used, such as module or directive
 1863 */
 1864function assertNotHasOwnProperty(name, context) {
 1865  if (name === 'hasOwnProperty') {
 1866    throw ngMinErr('badname', "hasOwnProperty is not a valid {0} name", context);
 1867  }
 1868}
 1869
 1870/**
 1871 * Return the value accessible from the object by path. Any undefined traversals are ignored
 1872 * @param {Object} obj starting object
 1873 * @param {String} path path to traverse
 1874 * @param {boolean} [bindFnToScope=true]
 1875 * @returns {Object} value as accessible by path
 1876 */
 1877//TODO(misko): this function needs to be removed
 1878function getter(obj, path, bindFnToScope) {
 1879  if (!path) return obj;
 1880  var keys = path.split('.');
 1881  var key;
 1882  var lastInstance = obj;
 1883  var len = keys.length;
 1884
 1885  for (var i = 0; i < len; i++) {
 1886    key = keys[i];
 1887    if (obj) {
 1888      obj = (lastInstance = obj)[key];
 1889    }
 1890  }
 1891  if (!bindFnToScope && isFunction(obj)) {
 1892    return bind(lastInstance, obj);
 1893  }
 1894  return obj;
 1895}
 1896
 1897/**
 1898 * Return the DOM siblings between the first and last node in the given array.
 1899 * @param {Array} array like object
 1900 * @returns {Array} the inputted object or a jqLite collection containing the nodes
 1901 */
 1902function getBlockNodes(nodes) {
 1903  // TODO(perf): update `nodes` instead of creating a new object?
 1904  var node = nodes[0];
 1905  var endNode = nodes[nodes.length - 1];
 1906  var blockNodes;
 1907
 1908  for (var i = 1; node !== endNode && (node = node.nextSibling); i++) {
 1909    if (blockNodes || nodes[i] !== node) {
 1910      if (!blockNodes) {
 1911        blockNodes = jqLite(slice.call(nodes, 0, i));
 1912      }
 1913      blockNodes.push(node);
 1914    }
 1915  }
 1916
 1917  return blockNodes || nodes;
 1918}
 1919
 1920
 1921/**
 1922 * Creates a new object without a prototype. This object is useful for lookup without having to
 1923 * guard against prototypically inherited properties via hasOwnProperty.
 1924 *
 1925 * Related micro-benchmarks:
 1926 * - http://jsperf.com/object-create2
 1927 * - http://jsperf.com/proto-map-lookup/2
 1928 * - http://jsperf.com/for-in-vs-object-keys2
 1929 *
 1930 * @returns {Object}
 1931 */
 1932function createMap() {
 1933  return Object.create(null);
 1934}
 1935
 1936var NODE_TYPE_ELEMENT = 1;
 1937var NODE_TYPE_ATTRIBUTE = 2;
 1938var NODE_TYPE_TEXT = 3;
 1939var NODE_TYPE_COMMENT = 8;
 1940var NODE_TYPE_DOCUMENT = 9;
 1941var NODE_TYPE_DOCUMENT_FRAGMENT = 11;
 1942
 1943/**
 1944 * @ngdoc type
 1945 * @name angular.Module
 1946 * @module ng
 1947 * @description
 1948 *
 1949 * Interface for configuring angular {@link angular.module modules}.
 1950 */
 1951
 1952function setupModuleLoader(window) {
 1953
 1954  var $injectorMinErr = minErr('$injector');
 1955  var ngMinErr = minErr('ng');
 1956
 1957  function ensure(obj, name, factory) {
 1958    return obj[name] || (obj[name] = factory());
 1959  }
 1960
 1961  var angular = ensure(window, 'angular', Object);
 1962
 1963  // We need to expose `angular.$$minErr` to modules such as `ngResource` that reference it during bootstrap
 1964  angular.$$minErr = angular.$$minErr || minErr;
 1965
 1966  return ensure(angular, 'module', function() {
 1967    /** @type {Object.<string, angular.Module>} */
 1968    var modules = {};
 1969
 1970    /**
 1971     * @ngdoc function
 1972     * @name angular.module
 1973     * @module ng
 1974     * @description
 1975     *
 1976     * The `angular.module` is a global place for creating, registering and retrieving Angular
 1977     * modules.
 1978     * All modules (angular core or 3rd party) that should be available to an application must be
 1979     * registered using this mechanism.
 1980     *
 1981     * Passing one argument retrieves an existing {@link angular.Module},
 1982     * whereas passing more than one argument creates a new {@link angular.Module}
 1983     *
 1984     *
 1985     * # Module
 1986     *
 1987     * A module is a collection of services, directives, controllers, filters, and configuration information.
 1988     * `angular.module` is used to configure the {@link auto.$injector $injector}.
 1989     *
 1990     * ```js
 1991     * // Create a new module
 1992     * var myModule = angular.module('myModule', []);
 1993     *
 1994     * // register a new service
 1995     * myModule.value('appName', 'MyCoolApp');
 1996     *
 1997     * // configure existing services inside initialization blocks.
 1998     * myModule.config(['$locationProvider', function($locationProvider) {
 1999     *   // Configure existing providers
 2000     *   $locationProvider.hashPrefix('!');
 2001     * }]);
 2002     * ```
 2003     *
 2004     * Then you can create an injector and load your modules like this:
 2005     *
 2006     * ```js
 2007     * var injector = angular.injector(['ng', 'myModule'])
 2008     * ```
 2009     *
 2010     * However it's more likely that you'll just use
 2011     * {@link ng.directive:ngApp ngApp} or
 2012     * {@link angular.bootstrap} to simplify this process for you.
 2013     *
 2014     * @param {!string} name The name of the module to create or retrieve.
 2015     * @param {!Array.<string>=} requires If specified then new module is being created. If
 2016     *        unspecified then the module is being retrieved for further configuration.
 2017     * @param {Function=} configFn Optional configuration function for the module. Same as
 2018     *        {@link angular.Module#config Module#config()}.
 2019     * @returns {angular.Module} new module with the {@link angular.Module} api.
 2020     */
 2021    return function module(name, requires, configFn) {
 2022      var assertNotHasOwnProperty = function(name, context) {
 2023        if (name === 'hasOwnProperty') {
 2024          throw ngMinErr('badname', 'hasOwnProperty is not a valid {0} name', context);
 2025        }
 2026      };
 2027
 2028      assertNotHasOwnProperty(name, 'module');
 2029      if (requires && modules.hasOwnProperty(name)) {
 2030        modules[name] = null;
 2031      }
 2032      return ensure(modules, name, function() {
 2033        if (!requires) {
 2034          throw $injectorMinErr('nomod', "Module '{0}' is not available! You either misspelled " +
 2035             "the module name or forgot to load it. If registering a module ensure that you " +
 2036             "specify the dependencies as the second argument.", name);
 2037        }
 2038
 2039        /** @type {!Array.<Array.<*>>} */
 2040        var invokeQueue = [];
 2041
 2042        /** @type {!Array.<Function>} */
 2043        var configBlocks = [];
 2044
 2045        /** @type {!Array.<Function>} */
 2046        var runBlocks = [];
 2047
 2048        var config = invokeLater('$injector', 'invoke', 'push', configBlocks);
 2049
 2050        /** @type {angular.Module} */
 2051        var moduleInstance = {
 2052          // Private state
 2053          _invokeQueue: invokeQueue,
 2054          _configBlocks: configBlocks,
 2055          _runBlocks: runBlocks,
 2056
 2057          /**
 2058           * @ngdoc property
 2059           * @name angular.Module#requires
 2060           * @module ng
 2061           *
 2062           * @description
 2063           * Holds the list of modules which the injector will load before the current module is
 2064           * loaded.
 2065           */
 2066          requires: requires,
 2067
 2068          /**
 2069           * @ngdoc property
 2070           * @name angular.Module#name
 2071           * @module ng
 2072           *
 2073           * @description
 2074           * Name of the module.
 2075           */
 2076          name: name,
 2077
 2078
 2079          /**
 2080           * @ngdoc method
 2081           * @name angular.Module#provider
 2082           * @module ng
 2083           * @param {string} name service name
 2084           * @param {Function} providerType Construction function for creating new instance of the
 2085           *                                service.
 2086           * @description
 2087           * See {@link auto.$provide#provider $provide.provider()}.
 2088           */
 2089          provider: invokeLaterAndSetModuleName('$provide', 'provider'),
 2090
 2091          /**
 2092           * @ngdoc method
 2093           * @name angular.Module#factory
 2094           * @module ng
 2095           * @param {string} name service name
 2096           * @param {Function} providerFunction Function for creating new instance of the service.
 2097           * @description
 2098           * See {@link auto.$provide#factory $provide.factory()}.
 2099           */
 2100          factory: invokeLaterAndSetModuleName('$provide', 'factory'),
 2101
 2102          /**
 2103           * @ngdoc method
 2104           * @name angular.Module#service
 2105           * @module ng
 2106           * @param {string} name service name
 2107           * @param {Function} constructor A constructor function that will be instantiated.
 2108           * @description
 2109           * See {@link auto.$provide#service $provide.service()}.
 2110           */
 2111          service: invokeLaterAndSetModuleName('$provide', 'service'),
 2112
 2113          /**
 2114           * @ngdoc method
 2115           * @name angular.Module#value
 2116           * @module ng
 2117           * @param {string} name service name
 2118           * @param {*} object Service instance object.
 2119           * @description
 2120           * See {@link auto.$provide#value $provide.value()}.
 2121           */
 2122          value: invokeLater('$provide', 'value'),
 2123
 2124          /**
 2125           * @ngdoc method
 2126           * @name angular.Module#constant
 2127           * @module ng
 2128           * @param {string} name constant name
 2129           * @param {*} object Constant value.
 2130           * @description
 2131           * Because the constants are fixed, they get applied before other provide methods.
 2132           * See {@link auto.$provide#constant $provide.constant()}.
 2133           */
 2134          constant: invokeLater('$provide', 'constant', 'unshift'),
 2135
 2136           /**
 2137           * @ngdoc method
 2138           * @name angular.Module#decorator
 2139           * @module ng
 2140           * @param {string} The name of the service to decorate.
 2141           * @param {Function} This function will be invoked when the service needs to be
 2142           *                                    instantiated and should return the decorated service instance.
 2143           * @description
 2144           * See {@link auto.$provide#decorator $provide.decorator()}.
 2145           */
 2146          decorator: invokeLaterAndSetModuleName('$provide', 'decorator'),
 2147
 2148          /**
 2149           * @ngdoc method
 2150           * @name angular.Module#animation
 2151           * @module ng
 2152           * @param {string} name animation name
 2153           * @param {Function} animationFactory Factory function for creating new instance of an
 2154           *                                    animation.
 2155           * @description
 2156           *
 2157           * **NOTE**: animations take effect only if the **ngAnimate** module is loaded.
 2158           *
 2159           *
 2160           * Defines an animation hook that can be later used with
 2161           * {@link $animate $animate} service and directives that use this service.
 2162           *
 2163           * ```js
 2164           * module.animation('.animation-name', function($inject1, $inject2) {
 2165           *   return {
 2166           *     eventName : function(element, done) {
 2167           *       //code to run the animation
 2168           *       //once complete, then run done()
 2169           *       return function cancellationFunction(element) {
 2170           *         //code to cancel the animation
 2171           *       }
 2172           *     }
 2173           *   }
 2174           * })
 2175           * ```
 2176           *
 2177           * See {@link ng.$animateProvider#register $animateProvider.register()} and
 2178           * {@link ngAnimate ngAnimate module} for more information.
 2179           */
 2180          animation: invokeLaterAndSetModuleName('$animateProvider', 'register'),
 2181
 2182          /**
 2183           * @ngdoc method
 2184           * @name angular.Module#filter
 2185           * @module ng
 2186           * @param {string} name Filter name - this must be a valid angular expression identifier
 2187           * @param {Function} filterFactory Factory function for creating new instance of filter.
 2188           * @description
 2189           * See {@link ng.$filterProvider#register $filterProvider.register()}.
 2190           *
 2191           * <div class="alert alert-warning">
 2192           * **Note:** Filter names must be valid angular {@link expression} identifiers, such as `uppercase` or `orderBy`.
 2193           * Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace
 2194           * your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores
 2195           * (`myapp_subsection_filterx`).
 2196           * </div>
 2197           */
 2198          filter: invokeLaterAndSetModuleName('$filterProvider', 'register'),
 2199
 2200          /**
 2201           * @ngdoc method
 2202           * @name angular.Module#controller
 2203           * @module ng
 2204           * @param {string|Object} name Controller name, or an object map of controllers where the
 2205           *    keys are the names and the values are the constructors.
 2206           * @param {Function} constructor Controller constructor function.
 2207           * @description
 2208           * See {@link ng.$controllerProvider#register $controllerProvider.register()}.
 2209           */
 2210          controller: invokeLaterAndSetModuleName('$controllerProvider', 'register'),
 2211
 2212          /**
 2213           * @ngdoc method
 2214           * @name angular.Module#directive
 2215           * @module ng
 2216           * @param {string|Object} name Directive name, or an object map of directives where the
 2217           *    keys are the names and the values are the factories.
 2218           * @param {Function} directiveFactory Factory function for creating new instance of
 2219           * directives.
 2220           * @description
 2221           * See {@link ng.$compileProvider#directive $compileProvider.directive()}.
 2222           */
 2223          directive: invokeLaterAndSetModuleName('$compileProvider', 'directive'),
 2224
 2225          /**
 2226           * @ngdoc method
 2227           * @name angular.Module#component
 2228           * @module ng
 2229           * @param {string} name Name of the component in camel-case (i.e. myComp which will match as my-comp)
 2230           * @param {Object} options Component definition object (a simplified
 2231           *    {@link ng.$compile#directive-definition-object directive definition object})
 2232           *
 2233           * @description
 2234           * See {@link ng.$compileProvider#component $compileProvider.component()}.
 2235           */
 2236          component: invokeLaterAndSetModuleName('$compileProvider', 'component'),
 2237
 2238          /**
 2239           * @ngdoc method
 2240           * @name angular.Module#config
 2241           * @module ng
 2242           * @param {Function} configFn Execute this function on module load. Useful for service
 2243           *    configuration.
 2244           * @description
 2245           * Use this method to register work which needs to be performed on module loading.
 2246           * For more about how to configure services, see
 2247           * {@link providers#provider-recipe Provider Recipe}.
 2248           */
 2249          config: config,
 2250
 2251          /**
 2252           * @ngdoc method
 2253           * @name angular.Module#run
 2254           * @module ng
 2255           * @param {Function} initializationFn Execute this function after injector creation.
 2256           *    Useful for application initialization.
 2257           * @description
 2258           * Use this method to register work which should be performed when the injector is done
 2259           * loading all modules.
 2260           */
 2261          run: function(block) {
 2262            runBlocks.push(block);
 2263            return this;
 2264          }
 2265        };
 2266
 2267        if (configFn) {
 2268          config(configFn);
 2269        }
 2270
 2271        return moduleInstance;
 2272
 2273        /**
 2274         * @param {string} provider
 2275         * @param {string} method
 2276         * @param {String=} insertMethod
 2277         * @returns {angular.Module}
 2278         */
 2279        function invokeLater(provider, method, insertMethod, queue) {
 2280          if (!queue) queue = invokeQueue;
 2281          return function() {
 2282            queue[insertMethod || 'push']([provider, method, arguments]);
 2283            return moduleInstance;
 2284          };
 2285        }
 2286
 2287        /**
 2288         * @param {string} provider
 2289         * @param {string} method
 2290         * @returns {angular.Module}
 2291         */
 2292        function invokeLaterAndSetModuleName(provider, method) {
 2293          return function(recipeName, factoryFunction) {
 2294            if (factoryFunction && isFunction(factoryFunction)) factoryFunction.$$moduleName = name;
 2295            invokeQueue.push([provider, method, arguments]);
 2296            return moduleInstance;
 2297          };
 2298        }
 2299      });
 2300    };
 2301  });
 2302
 2303}
 2304
 2305/* global: toDebugString: true */
 2306
 2307function serializeObject(obj) {
 2308  var seen = [];
 2309
 2310  return JSON.stringify(obj, function(key, val) {
 2311    val = toJsonReplacer(key, val);
 2312    if (isObject(val)) {
 2313
 2314      if (seen.indexOf(val) >= 0) return '...';
 2315
 2316      seen.push(val);
 2317    }
 2318    return val;
 2319  });
 2320}
 2321
 2322function toDebugString(obj) {
 2323  if (typeof obj === 'function') {
 2324    return obj.toString().replace(/ \{[\s\S]*$/, '');
 2325  } else if (isUndefined(obj)) {
 2326    return 'undefined';
 2327  } else if (typeof obj !== 'string') {
 2328    return serializeObject(obj);
 2329  }
 2330  return obj;
 2331}
 2332
 2333/* global angularModule: true,
 2334  version: true,
 2335
 2336  $CompileProvider,
 2337
 2338  htmlAnchorDirective,
 2339  inputDirective,
 2340  inputDirective,
 2341  formDirective,
 2342  scriptDirective,
 2343  selectDirective,
 2344  styleDirective,
 2345  optionDirective,
 2346  ngBindDirective,
 2347  ngBindHtmlDirective,
 2348  ngBindTemplateDirective,
 2349  ngClassDirective,
 2350  ngClassEvenDirective,
 2351  ngClassOddDirective,
 2352  ngCloakDirective,
 2353  ngControllerDirective,
 2354  ngFormDirective,
 2355  ngHideDirective,
 2356  ngIfDirective,
 2357  ngIncludeDirective,
 2358  ngIncludeFillContentDirective,
 2359  ngInitDirective,
 2360  ngNonBindableDirective,
 2361  ngPluralizeDirective,
 2362  ngRepeatDirective,
 2363  ngShowDirective,
 2364  ngStyleDirective,
 2365  ngSwitchDirective,
 2366  ngSwitchWhenDirective,
 2367  ngSwitchDefaultDirective,
 2368  ngOptionsDirective,
 2369  ngTranscludeDirective,
 2370  ngModelDirective,
 2371  ngListDirective,
 2372  ngChangeDirective,
 2373  patternDirective,
 2374  patternDirective,
 2375  requiredDirective,
 2376  requiredDirective,
 2377  minlengthDirective,
 2378  minlengthDirective,
 2379  maxlengthDirective,
 2380  maxlengthDirective,
 2381  ngValueDirective,
 2382  ngModelOptionsDirective,
 2383  ngAttributeAliasDirectives,
 2384  ngEventDirectives,
 2385
 2386  $AnchorScrollProvider,
 2387  $AnimateProvider,
 2388  $CoreAnimateCssProvider,
 2389  $$CoreAnimateJsProvider,
 2390  $$CoreAnimateQueueProvider,
 2391  $$AnimateRunnerFactoryProvider,
 2392  $$AnimateAsyncRunFactoryProvider,
 2393  $BrowserProvider,
 2394  $CacheFactoryProvider,
 2395  $ControllerProvider,
 2396  $DateProvider,
 2397  $DocumentProvider,
 2398  $ExceptionHandlerProvider,
 2399  $FilterProvider,
 2400  $$ForceReflowProvider,
 2401  $InterpolateProvider,
 2402  $IntervalProvider,
 2403  $$HashMapProvider,
 2404  $HttpProvider,
 2405  $HttpParamSerializerProvider,
 2406  $HttpParamSerializerJQLikeProvider,
 2407  $HttpBackendProvider,
 2408  $xhrFactoryProvider,
 2409  $LocationProvider,
 2410  $LogProvider,
 2411  $ParseProvider,
 2412  $RootScopeProvider,
 2413  $QProvider,
 2414  $$QProvider,
 2415  $$SanitizeUriProvider,
 2416  $SceProvider,
 2417  $SceDelegateProvider,
 2418  $SnifferProvider,
 2419  $TemplateCacheProvider,
 2420  $TemplateRequestProvider,
 2421  $$TestabilityProvider,
 2422  $TimeoutProvider,
 2423  $$RAFProvider,
 2424  $WindowProvider,
 2425  $$jqLiteProvider,
 2426  $$CookieReaderProvider
 2427*/
 2428
 2429
 2430/**
 2431 * @ngdoc object
 2432 * @name angular.version
 2433 * @module ng
 2434 * @description
 2435 * An object that contains information about the current AngularJS version.
 2436 *
 2437 * This object has the following properties:
 2438 *
 2439 * - `full` – `{string}` – Full version string, such as "0.9.18".
 2440 * - `major` – `{number}` – Major version number, such as "0".
 2441 * - `minor` – `{number}` – Minor version number, such as "9".
 2442 * - `dot` – `{number}` – Dot version number, such as "18".
 2443 * - `codeName` – `{string}` – Code name of the release, such as "jiggling-armfat".
 2444 */
 2445var version = {
 2446  full: '1.5.3',    // all of these placeholder strings will be replaced by grunt's
 2447  major: 1,    // package task
 2448  minor: 5,
 2449  dot: 3,
 2450  codeName: 'diplohaplontic-meiosis'
 2451};
 2452
 2453
 2454function publishExternalAPI(angular) {
 2455  extend(angular, {
 2456    'bootstrap': bootstrap,
 2457    'copy': copy,
 2458    'extend': extend,
 2459    'merge': merge,
 2460    'equals': equals,
 2461    'element': jqLite,
 2462    'forEach': forEach,
 2463    'injector': createInjector,
 2464    'noop': noop,
 2465    'bind': bind,
 2466    'toJson': toJson,
 2467    'fromJson': fromJson,
 2468    'identity': identity,
 2469    'isUndefined': isUndefined,
 2470    'isDefined': isDefined,
 2471    'isString': isString,
 2472    'isFunction': isFunction,
 2473    'isObject': isObject,
 2474    'isNumber': isNumber,
 2475    'isElement': isElement,
 2476    'isArray': isArray,
 2477    'version': version,
 2478    'isDate': isDate,
 2479    'lowercase': lowercase,
 2480    'uppercase': uppercase,
 2481    'callbacks': {counter: 0},
 2482    'getTestability': getTestability,
 2483    '$$minErr': minErr,
 2484    '$$csp': csp,
 2485    'reloadWithDebugInfo': reloadWithDebugInfo
 2486  });
 2487
 2488  angularModule = setupModuleLoader(window);
 2489
 2490  angularModule('ng', ['ngLocale'], ['$provide',
 2491    function ngModule($provide) {
 2492      // $$sanitizeUriProvider needs to be before $compileProvider as it is used by it.
 2493      $provide.provider({
 2494        $$sanitizeUri: $$SanitizeUriProvider
 2495      });
 2496      $provide.provider('$compile', $CompileProvider).
 2497        directive({
 2498            a: htmlAnchorDirective,
 2499            input: inputDirective,
 2500            textarea: inputDirective,
 2501            form: formDirective,
 2502            script: scriptDirective,
 2503            select: selectDirective,
 2504            style: styleDirective,
 2505            option: optionDirective,
 2506            ngBind: ngBindDirective,
 2507            ngBindHtml: ngBindHtmlDirective,
 2508            ngBindTemplate: ngBindTemplateDirective,
 2509            ngClass: ngClassDirective,
 2510            ngClassEven: ngClassEvenDirective,
 2511            ngClassOdd: ngClassOddDirective,
 2512            ngCloak: ngCloakDirective,
 2513            ngController: ngControllerDirective,
 2514            ngForm: ngFormDirective,
 2515            ngHide: ngHideDirective,
 2516            ngIf: ngIfDirective,
 2517            ngInclude: ngIncludeDirective,
 2518            ngInit: ngInitDirective,
 2519            ngNonBindable: ngNonBindableDirective,
 2520            ngPluralize: ngPluralizeDirective,
 2521            ngRepeat: ngRepeatDirective,
 2522            ngShow: ngShowDirective,
 2523            ngStyle: ngStyleDirective,
 2524            ngSwitch: ngSwitchDirective,
 2525            ngSwitchWhen: ngSwitchWhenDirective,
 2526            ngSwitchDefault: ngSwitchDefaultDirective,
 2527            ngOptions: ngOptionsDirective,
 2528            ngTransclude: ngTranscludeDirective,
 2529            ngModel: ngModelDirective,
 2530            ngList: ngListDirective,
 2531            ngChange: ngChangeDirective,
 2532            pattern: patternDirective,
 2533            ngPattern: patternDirective,
 2534            required: requiredDirective,
 2535            ngRequired: requiredDirective,
 2536            minlength: minlengthDirective,
 2537            ngMinlength: minlengthDirective,
 2538            maxlength: maxlengthDirective,
 2539            ngMaxlength: maxlengthDirective,
 2540            ngValue: ngValueDirective,
 2541            ngModelOptions: ngModelOptionsDirective
 2542        }).
 2543        directive({
 2544          ngInclude: ngIncludeFillContentDirective
 2545        }).
 2546        directive(ngAttributeAliasDirectives).
 2547        directive(ngEventDirectives);
 2548      $provide.provider({
 2549        $anchorScroll: $AnchorScrollProvider,
 2550        $animate: $AnimateProvider,
 2551        $animateCss: $CoreAnimateCssProvider,
 2552        $$animateJs: $$CoreAnimateJsProvider,
 2553        $$animateQueue: $$CoreAnimateQueueProvider,
 2554        $$AnimateRunner: $$AnimateRunnerFactoryProvider,
 2555        $$animateAsyncRun: $$AnimateAsyncRunFactoryProvider,
 2556        $browser: $BrowserProvider,
 2557        $cacheFactory: $CacheFactoryProvider,
 2558        $controller: $ControllerProvider,
 2559        $document: $DocumentProvider,
 2560        $exceptionHandler: $ExceptionHandlerProvider,
 2561        $filter: $FilterProvider,
 2562        $$forceReflow: $$ForceReflowProvider,
 2563        $interpolate: $InterpolateProvider,
 2564        $interval: $IntervalProvider,
 2565        $http: $HttpProvider,
 2566        $httpParamSerializer: $HttpParamSerializerProvider,
 2567        $httpParamSerializerJQLike: $HttpParamSerializerJQLikeProvider,
 2568        $httpBackend: $HttpBackendProvider,
 2569        $xhrFactory: $xhrFactoryProvider,
 2570        $location: $LocationProvider,
 2571        $log: $LogProvider,
 2572        $parse: $ParseProvider,
 2573        $rootScope: $RootScopeProvider,
 2574        $q: $QProvider,
 2575        $$q: $$QProvider,
 2576        $sce: $SceProvider,
 2577        $sceDelegate: $SceDelegateProvider,
 2578        $sniffer: $SnifferProvider,
 2579        $templateCache: $TemplateCacheProvider,
 2580        $templateRequest: $TemplateRequestProvider,
 2581        $$testability: $$TestabilityProvider,
 2582        $timeout: $TimeoutProvider,
 2583        $window: $WindowProvider,
 2584        $$rAF: $$RAFProvider,
 2585        $$jqLite: $$jqLiteProvider,
 2586        $$HashMap: $$HashMapProvider,
 2587        $$cookieReader: $$CookieReaderProvider
 2588      });
 2589    }
 2590  ]);
 2591}
 2592
 2593/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 2594 *     Any commits to this file should be reviewed with security in mind.  *
 2595 *   Changes to this file can potentially create security vulnerabilities. *
 2596 *          An approval from 2 Core members with history of modifying      *
 2597 *                         this file is required.                          *
 2598 *                                                                         *
 2599 *  Does the change somehow allow for arbitrary javascript to be executed? *
 2600 *    Or allows for someone to change the prototype of built-in objects?   *
 2601 *     Or gives undesired access to variables likes document or window?    *
 2602 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 2603
 2604/* global JQLitePrototype: true,
 2605  addEventListenerFn: true,
 2606  removeEventListenerFn: true,
 2607  BOOLEAN_ATTR: true,
 2608  ALIASED_ATTR: true,
 2609*/
 2610
 2611//////////////////////////////////
 2612//JQLite
 2613//////////////////////////////////
 2614
 2615/**
 2616 * @ngdoc function
 2617 * @name angular.element
 2618 * @module ng
 2619 * @kind function
 2620 *
 2621 * @description
 2622 * Wraps a raw DOM element or HTML string as a [jQuery](http://jquery.com) element.
 2623 *
 2624 * If jQuery is available, `angular.element` is an alias for the
 2625 * [jQuery](http://api.jquery.com/jQuery/) function. If jQuery is not available, `angular.element`
 2626 * delegates to Angular's built-in subset of jQuery, called "jQuery lite" or **jqLite**.
 2627 *
 2628 * jqLite is a tiny, API-compatible subset of jQuery that allows
 2629 * Angular to manipulate the DOM in a cross-browser compatible way. jqLite implements only the most
 2630 * commonly needed functionality with the goal of having a very small footprint.
 2631 *
 2632 * To use `jQuery`, simply ensure it is loaded before the `angular.js` file. You can also use the
 2633 * {@link ngJq `ngJq`} directive to specify that jqlite should be used over jQuery, or to use a
 2634 * specific version of jQuery if multiple versions exist on the page.
 2635 *
 2636 * <div class="alert alert-info">**Note:** All element references in Angular are always wrapped with jQuery or
 2637 * jqLite (such as the element argument in a directive's compile / link function). They are never raw DOM references.</div>
 2638 *
 2639 * <div class="alert alert-warning">**Note:** Keep in mind that this function will not find elements
 2640 * by tag name / CSS selector. For lookups by tag name, try instead `angular.element(document).find(...)`
 2641 * or `$document.find()`, or use the standard DOM APIs, e.g. `document.querySelectorAll()`.</div>
 2642 *
 2643 * ## Angular's jqLite
 2644 * jqLite provides only the following jQuery methods:
 2645 *
 2646 * - [`addClass()`](http://api.jquery.com/addClass/)
 2647 * - [`after()`](http://api.jquery.com/after/)
 2648 * - [`append()`](http://api.jquery.com/append/)
 2649 * - [`attr()`](http://api.jquery.com/attr/) - Does not support functions as parameters
 2650 * - [`bind()`](http://api.jquery.com/bind/) - Does not support namespaces, selectors or eventData
 2651 * - [`children()`](http://api.jquery.com/children/) - Does not support selectors
 2652 * - [`clone()`](http://api.jquery.com/clone/)
 2653 * - [`contents()`](http://api.jquery.com/contents/)
 2654 * - [`css()`](http://api.jquery.com/css/) - Only retrieves inline-styles, does not call `getComputedStyle()`.
 2655 *   As a setter, does not convert numbers to strings or append 'px', and also does not have automatic property prefixing.
 2656 * - [`data()`](http://api.jquery.com/data/)
 2657 * - [`detach()`](http://api.jquery.com/detach/)
 2658 * - [`empty()`](http://api.jquery.com/empty/)
 2659 * - [`eq()`](http://api.jquery.com/eq/)
 2660 * - [`find()`](http://api.jquery.com/find/) - Limited to lookups by tag name
 2661 * - [`hasClass()`](http://api.jquery.com/hasClass/)
 2662 * - [`html()`](http://api.jquery.com/html/)
 2663 * - [`next()`](http://api.jquery.com/next/) - Does not support selectors
 2664 * - [`on()`](http://api.jquery.com/on/) - Does not support namespaces, selectors or eventData
 2665 * - [`off()`](http://api.jquery.com/off/) - Does not support namespaces, selectors or event object as parameter
 2666 * - [`one()`](http://api.jquery.com/one/) - Does not support namespaces or selectors
 2667 * - [`parent()`](http://api.jquery.com/parent/) - Does not support selectors
 2668 * - [`prepend()`](http://api.jquery.com/prepend/)
 2669 * - [`prop()`](http://api.jquery.com/prop/)
 2670 * - [`ready()`](http://api.jquery.com/ready/)
 2671 * - [`remove()`](http://api.jquery.com/remove/)
 2672 * - [`removeAttr()`](http://api.jquery.com/removeAttr/)
 2673 * - [`removeClass()`](http://api.jquery.com/removeClass/)
 2674 * - [`removeData()`](http://api.jquery.com/removeData/)
 2675 * - [`replaceWith()`](http://api.jquery.com/replaceWith/)
 2676 * - [`text()`](http://api.jquery.com/text/)
 2677 * - [`toggleClass()`](http://api.jquery.com/toggleClass/)
 2678 * - [`triggerHandler()`](http://api.jquery.com/triggerHandler/) - Passes a dummy event object to handlers.
 2679 * - [`unbind()`](http://api.jquery.com/unbind/) - Does not support namespaces or event object as parameter
 2680 * - [`val()`](http://api.jquery.com/val/)
 2681 * - [`wrap()`](http://api.jquery.com/wrap/)
 2682 *
 2683 * ## jQuery/jqLite Extras
 2684 * Angular also provides the following additional methods and events to both jQuery and jqLite:
 2685 *
 2686 * ### Events
 2687 * - `$destroy` - AngularJS intercepts all jqLite/jQuery's DOM destruction apis and fires this event
 2688 *    on all DOM nodes being removed.  This can be used to clean up any 3rd party bindings to the DOM
 2689 *    element before it is removed.
 2690 *
 2691 * ### Methods
 2692 * - `controller(name)` - retrieves the controller of the current element or its parent. By default
 2693 *   retrieves controller associated with the `ngController` directive. If `name` is provided as
 2694 *   camelCase directive name, then the controller for this directive will be retrieved (e.g.
 2695 *   `'ngModel'`).
 2696 * - `injector()` - retrieves the injector of the current element or its parent.
 2697 * - `scope()` - retrieves the {@link ng.$rootScope.Scope scope} of the current
 2698 *   element or its parent. Requires {@link guide/production#disabling-debug-data Debug Data} to
 2699 *   be enabled.
 2700 * - `isolateScope()` - retrieves an isolate {@link ng.$rootScope.Scope scope} if one is attached directly to the
 2701 *   current element. This getter should be used only on elements that contain a directive which starts a new isolate
 2702 *   scope. Calling `scope()` on this element always returns the original non-isolate scope.
 2703 *   Requires {@link guide/production#disabling-debug-data Debug Data} to be enabled.
 2704 * - `inheritedData()` - same as `data()`, but walks up the DOM until a value is found or the top
 2705 *   parent element is reached.
 2706 *
 2707 * @param {string|DOMElement} element HTML string or DOMElement to be wrapped into jQuery.
 2708 * @returns {Object} jQuery object.
 2709 */
 2710
 2711JQLite.expando = 'ng339';
 2712
 2713var jqCache = JQLite.cache = {},
 2714    jqId = 1,
 2715    addEventListenerFn = function(element, type, fn) {
 2716      element.addEventListener(type, fn, false);
 2717    },
 2718    removeEventListenerFn = function(element, type, fn) {
 2719      element.removeEventListener(type, fn, false);
 2720    };
 2721
 2722/*
 2723 * !!! This is an undocumented "private" function !!!
 2724 */
 2725JQLite._data = function(node) {
 2726  //jQuery always returns an object on cache miss
 2727  return this.cache[node[this.expando]] || {};
 2728};
 2729
 2730function jqNextId() { return ++jqId; }
 2731
 2732
 2733var SPECIAL_CHARS_REGEXP = /([\:\-\_]+(.))/g;
 2734var MOZ_HACK_REGEXP = /^moz([A-Z])/;
 2735var MOUSE_EVENT_MAP= { mouseleave: "mouseout", mouseenter: "mouseover"};
 2736var jqLiteMinErr = minErr('jqLite');
 2737
 2738/**
 2739 * Converts snake_case to camelCase.
 2740 * Also there is special case for Moz prefix starting with upper case letter.
 2741 * @param name Name to normalize
 2742 */
 2743function camelCase(name) {
 2744  return name.
 2745    replace(SPECIAL_CHARS_REGEXP, function(_, separator, letter, offset) {
 2746      return offset ? letter.toUpperCase() : letter;
 2747    }).
 2748    replace(MOZ_HACK_REGEXP, 'Moz$1');
 2749}
 2750
 2751var SINGLE_TAG_REGEXP = /^<([\w-]+)\s*\/?>(?:<\/\1>|)$/;
 2752var HTML_REGEXP = /<|&#?\w+;/;
 2753var TAG_NAME_REGEXP = /<([\w:-]+)/;
 2754var XHTML_TAG_REGEXP = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:-]+)[^>]*)\/>/gi;
 2755
 2756var wrapMap = {
 2757  'option': [1, '<select multiple="multiple">', '</select>'],
 2758
 2759  'thead': [1, '<table>', '</table>'],
 2760  'col': [2, '<table><colgroup>', '</colgroup></table>'],
 2761  'tr': [2, '<table><tbody>', '</tbody></table>'],
 2762  'td': [3, '<table><tbody><tr>', '</tr></tbody></table>'],
 2763  '_default': [0, "", ""]
 2764};
 2765
 2766wrapMap.optgroup = wrapMap.option;
 2767wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
 2768wrapMap.th = wrapMap.td;
 2769
 2770
 2771function jqLiteIsTextNode(html) {
 2772  return !HTML_REGEXP.test(html);
 2773}
 2774
 2775function jqLiteAcceptsData(node) {
 2776  // The window object can accept data but has no nodeType
 2777  // Otherwise we are only interested in elements (1) and documents (9)
 2778  var nodeType = node.nodeType;
 2779  return nodeType === NODE_TYPE_ELEMENT || !nodeType || nodeType === NODE_TYPE_DOCUMENT;
 2780}
 2781
 2782function jqLiteHasData(node) {
 2783  for (var key in jqCache[node.ng339]) {
 2784    return true;
 2785  }
 2786  return false;
 2787}
 2788
 2789function jqLiteCleanData(nodes) {
 2790  for (var i = 0, ii = nodes.length; i < ii; i++) {
 2791    jqLiteRemoveData(nodes[i]);
 2792  }
 2793}
 2794
 2795function jqLiteBuildFragment(html, context) {
 2796  var tmp, tag, wrap,
 2797      fragment = context.createDocumentFragment(),
 2798      nodes = [], i;
 2799
 2800  if (jqLiteIsTextNode(html)) {
 2801    // Convert non-html into a text node
 2802    nodes.push(context.createTextNode(html));
 2803  } else {
 2804    // Convert html into DOM nodes
 2805    tmp = tmp || fragment.appendChild(context.createElement("div"));
 2806    tag = (TAG_NAME_REGEXP.exec(html) || ["", ""])[1].toLowerCase();
 2807    wrap = wrapMap[tag] || wrapMap._default;
 2808    tmp.innerHTML = wrap[1] + html.replace(XHTML_TAG_REGEXP, "<$1></$2>") + wrap[2];
 2809
 2810    // Descend through wrappers to the right content
 2811    i = wrap[0];
 2812    while (i--) {
 2813      tmp = tmp.lastChild;
 2814    }
 2815
 2816    nodes = concat(nodes, tmp.childNodes);
 2817
 2818    tmp = fragment.firstChild;
 2819    tmp.textContent = "";
 2820  }
 2821
 2822  // Remove wrapper from fragment
 2823  fragment.textContent = "";
 2824  fragment.innerHTML = ""; // Clear inner HTML
 2825  forEach(nodes, function(node) {
 2826    fragment.appendChild(node);
 2827  });
 2828
 2829  return fragment;
 2830}
 2831
 2832function jqLiteParseHTML(html, context) {
 2833  context = context || document;
 2834  var parsed;
 2835
 2836  if ((parsed = SINGLE_TAG_REGEXP.exec(html))) {
 2837    return [context.createElement(parsed[1])];
 2838  }
 2839
 2840  if ((parsed = jqLiteBuildFragment(html, context))) {
 2841    return parsed.childNodes;
 2842  }
 2843
 2844  return [];
 2845}
 2846
 2847function jqLiteWrapNode(node, wrapper) {
 2848  var parent = node.parentNode;
 2849
 2850  if (parent) {
 2851    parent.replaceChild(wrapper, node);
 2852  }
 2853
 2854  wrapper.appendChild(node);
 2855}
 2856
 2857
 2858// IE9-11 has no method "contains" in SVG element and in Node.prototype. Bug #10259.
 2859var jqLiteContains = Node.prototype.contains || function(arg) {
 2860  // jshint bitwise: false
 2861  return !!(this.compareDocumentPosition(arg) & 16);
 2862  // jshint bitwise: true
 2863};
 2864
 2865/////////////////////////////////////////////
 2866function JQLite(element) {
 2867  if (element instanceof JQLite) {
 2868    return element;
 2869  }
 2870
 2871  var argIsString;
 2872
 2873  if (isString(element)) {
 2874    element = trim(element);
 2875    argIsString = true;
 2876  }
 2877  if (!(this instanceof JQLite)) {
 2878    if (argIsString && element.charAt(0) != '<') {
 2879      throw jqLiteMinErr('nosel', 'Looking up elements via selectors is not supported by jqLite! See: http://docs.angularjs.org/api/angular.element');
 2880    }
 2881    return new JQLite(element);
 2882  }
 2883
 2884  if (argIsString) {
 2885    jqLiteAddNodes(this, jqLiteParseHTML(element));
 2886  } else {
 2887    jqLiteAddNodes(this, element);
 2888  }
 2889}
 2890
 2891function jqLiteClone(element) {
 2892  return element.cloneNode(true);
 2893}
 2894
 2895function jqLiteDealoc(element, onlyDescendants) {
 2896  if (!onlyDescendants) jqLiteRemoveData(element);
 2897
 2898  if (element.querySelectorAll) {
 2899    var descendants = element.querySelectorAll('*');
 2900    for (var i = 0, l = descendants.length; i < l; i++) {
 2901      jqLiteRemoveData(descendants[i]);
 2902    }
 2903  }
 2904}
 2905
 2906function jqLiteOff(element, type, fn, unsupported) {
 2907  if (isDefined(unsupported)) throw jqLiteMinErr('offargs', 'jqLite#off() does not support the `selector` argument');
 2908
 2909  var expandoStore = jqLiteExpandoStore(element);
 2910  var events = expandoStore && expandoStore.events;
 2911  var handle = expandoStore && expandoStore.handle;
 2912
 2913  if (!handle) return; //no listeners registered
 2914
 2915  if (!type) {
 2916    for (type in events) {
 2917      if (type !== '$destroy') {
 2918        removeEventListenerFn(element, type, handle);
 2919      }
 2920      delete events[type];
 2921    }
 2922  } else {
 2923
 2924    var removeHandler = function(type) {
 2925      var listenerFns = events[type];
 2926      if (isDefined(fn)) {
 2927        arrayRemove(listenerFns || [], fn);
 2928      }
 2929      if (!(isDefined(fn) && listenerFns && listenerFns.length > 0)) {
 2930        removeEventListenerFn(element, type, handle);
 2931        delete events[type];
 2932      }
 2933    };
 2934
 2935    forEach(type.split(' '), function(type) {
 2936      removeHandler(type);
 2937      if (MOUSE_EVENT_MAP[type]) {
 2938        removeHandler(MOUSE_EVENT_MAP[type]);
 2939      }
 2940    });
 2941  }
 2942}
 2943
 2944function jqLiteRemoveData(element, name) {
 2945  var expandoId = element.ng339;
 2946  var expandoStore = expandoId && jqCache[expandoId];
 2947
 2948  if (expandoStore) {
 2949    if (name) {
 2950      delete expandoStore.data[name];
 2951      return;
 2952    }
 2953
 2954    if (expandoStore.handle) {
 2955      if (expandoStore.events.$destroy) {
 2956        expandoStore.handle({}, '$destroy');
 2957      }
 2958      jqLiteOff(element);
 2959    }
 2960    delete jqCache[expandoId];
 2961    element.ng339 = undefined; // don't delete DOM expandos. IE and Chrome don't like it
 2962  }
 2963}
 2964
 2965
 2966function jqLiteExpandoStore(element, createIfNecessary) {
 2967  var expandoId = element.ng339,
 2968      expandoStore = expandoId && jqCache[expandoId];
 2969
 2970  if (createIfNecessary && !expandoStore) {
 2971    element.ng339 = expandoId = jqNextId();
 2972    expandoStore = jqCache[expandoId] = {events: {}, data: {}, handle: undefined};
 2973  }
 2974
 2975  return expandoStore;
 2976}
 2977
 2978
 2979function jqLiteData(element, key, value) {
 2980  if (jqLiteAcceptsData(element)) {
 2981
 2982    var isSimpleSetter = isDefined(value);
 2983    var isSimpleGetter = !isSimpleSetter && key && !isObject(key);
 2984    var massGetter = !key;
 2985    var expandoStore = jqLiteExpandoStore(element, !isSimpleGetter);
 2986    var data = expandoStore && expandoStore.data;
 2987
 2988    if (isSimpleSetter) { // data('key', value)
 2989      data[key] = value;
 2990    } else {
 2991      if (massGetter) {  // data()
 2992        return data;
 2993      } else {
 2994        if (isSimpleGetter) { // data('key')
 2995          // don't force creation of expandoStore if it doesn't exist yet
 2996          return data && data[key];
 2997        } else { // mass-setter: data({key1: val1, key2: val2})
 2998          extend(data, key);
 2999        }
 3000      }
 3001    }
 3002  }
 3003}
 3004
 3005function jqLiteHasClass(element, selector) {
 3006  if (!element.getAttribute) return false;
 3007  return ((" " + (element.getAttribute('class') || '') + " ").replace(/[\n\t]/g, " ").
 3008      indexOf(" " + selector + " ") > -1);
 3009}
 3010
 3011function jqLiteRemoveClass(element, cssClasses) {
 3012  if (cssClasses && element.setAttribute) {
 3013    forEach(cssClasses.split(' '), function(cssClass) {
 3014      element.setAttribute('class', trim(
 3015          (" " + (element.getAttribute('class') || '') + " ")
 3016          .replace(/[\n\t]/g, " ")
 3017          .replace(" " + trim(cssClass) + " ", " "))
 3018      );
 3019    });
 3020  }
 3021}
 3022
 3023function jqLiteAddClass(element, cssClasses) {
 3024  if (cssClasses && element.setAttribute) {
 3025    var existingClasses = (' ' + (element.getAttribute('class') || '') + ' ')
 3026                            .replace(/[\n\t]/g, " ");
 3027
 3028    forEach(cssClasses.split(' '), function(cssClass) {
 3029      cssClass = trim(cssClass);
 3030      if (existingClasses.indexOf(' ' + cssClass + ' ') === -1) {
 3031        existingClasses += cssClass + ' ';
 3032      }
 3033    });
 3034
 3035    element.setAttribute('class', trim(existingClasses));
 3036  }
 3037}
 3038
 3039
 3040function jqLiteAddNodes(root, elements) {
 3041  // THIS CODE IS VERY HOT. Don't make changes without benchmarking.
 3042
 3043  if (elements) {
 3044
 3045    // if a Node (the most common case)
 3046    if (elements.nodeType) {
 3047      root[root.length++] = elements;
 3048    } else {
 3049      var length = elements.length;
 3050
 3051      // if an Array or NodeList and not a Window
 3052      if (typeof length === 'number' && elements.window !== elements) {
 3053        if (length) {
 3054          for (var i = 0; i < length; i++) {
 3055            root[root.length++] = elements[i];
 3056          }
 3057        }
 3058      } else {
 3059        root[root.length++] = elements;
 3060      }
 3061    }
 3062  }
 3063}
 3064
 3065
 3066function jqLiteController(element, name) {
 3067  return jqLiteInheritedData(element, '$' + (name || 'ngController') + 'Controller');
 3068}
 3069
 3070function jqLiteInheritedData(element, name, value) {
 3071  // if element is the document object work with the html element instead
 3072  // this makes $(document).scope() possible
 3073  if (element.nodeType == NODE_TYPE_DOCUMENT) {
 3074    element = element.documentElement;
 3075  }
 3076  var names = isArray(name) ? name : [name];
 3077
 3078  while (element) {
 3079    for (var i = 0, ii = names.length; i < ii; i++) {
 3080      if (isDefined(value = jqLite.data(element, names[i]))) return value;
 3081    }
 3082
 3083    // If dealing with a document fragment node with a host element, and no parent, use the host
 3084    // element as the parent. This enables directives within a Shadow DOM or polyfilled Shadow DOM
 3085    // to lookup parent controllers.
 3086    element = element.parentNode || (element.nodeType === NODE_TYPE_DOCUMENT_FRAGMENT && element.host);
 3087  }
 3088}
 3089
 3090function jqLiteEmpty(element) {
 3091  jqLiteDealoc(element, true);
 3092  while (element.firstChild) {
 3093    element.removeChild(element.firstChild);
 3094  }
 3095}
 3096
 3097function jqLiteRemove(element, keepData) {
 3098  if (!keepData) jqLiteDealoc(element);
 3099  var parent = element.parentNode;
 3100  if (parent) parent.removeChild(element);
 3101}
 3102
 3103
 3104function jqLiteDocumentLoaded(action, win) {
 3105  win = win || window;
 3106  if (win.document.readyState === 'complete') {
 3107    // Force the action to be run async for consistent behavior
 3108    // from the action's point of view
 3109    // i.e. it will definitely not be in a $apply
 3110    win.setTimeout(action);
 3111  } else {
 3112    // No need to unbind this handler as load is only ever called once
 3113    jqLite(win).on('load', action);
 3114  }
 3115}
 3116
 3117//////////////////////////////////////////
 3118// Functions which are declared directly.
 3119//////////////////////////////////////////
 3120var JQLitePrototype = JQLite.prototype = {
 3121  ready: function(fn) {
 3122    var fired = false;
 3123
 3124    function trigger() {
 3125      if (fired) return;
 3126      fired = true;
 3127      fn();
 3128    }
 3129
 3130    // check if document is already loaded
 3131    if (document.readyState === 'complete') {
 3132      setTimeout(trigger);
 3133    } else {
 3134      this.on('DOMContentLoaded', trigger); // works for modern browsers and IE9
 3135      // we can not use jqLite since we are not done loading and jQuery could be loaded later.
 3136      // jshint -W064
 3137      JQLite(window).on('load', trigger); // fallback to window.onload for others
 3138      // jshint +W064
 3139    }
 3140  },
 3141  toString: function() {
 3142    var value = [];
 3143    forEach(this, function(e) { value.push('' + e);});
 3144    return '[' + value.join(', ') + ']';
 3145  },
 3146
 3147  eq: function(index) {
 3148      return (index >= 0) ? jqLite(this[index]) : jqLite(this[this.length + index]);
 3149  },
 3150
 3151  length: 0,
 3152  push: push,
 3153  sort: [].sort,
 3154  splice: [].splice
 3155};
 3156
 3157//////////////////////////////////////////
 3158// Functions iterating getter/setters.
 3159// these functions return self on setter and
 3160// value on get.
 3161//////////////////////////////////////////
 3162var BOOLEAN_ATTR = {};
 3163forEach('multiple,selected,checked,disabled,readOnly,required,open'.split(','), function(value) {
 3164  BOOLEAN_ATTR[lowercase(value)] = value;
 3165});
 3166var BOOLEAN_ELEMENTS = {};
 3167forEach('input,select,option,textarea,button,form,details'.split(','), function(value) {
 3168  BOOLEAN_ELEMENTS[value] = true;
 3169});
 3170var ALIASED_ATTR = {
 3171  'ngMinlength': 'minlength',
 3172  'ngMaxlength': 'maxlength',
 3173  'ngMin': 'min',
 3174  'ngMax': 'max',
 3175  'ngPattern': 'pattern'
 3176};
 3177
 3178function getBooleanAttrName(element, name) {
 3179  // check dom last since we will most likely fail on name
 3180  var booleanAttr = BOOLEAN_ATTR[name.toLowerCase()];
 3181
 3182  // booleanAttr is here twice to minimize DOM access
 3183  return booleanAttr && BOOLEAN_ELEMENTS[nodeName_(element)] && booleanAttr;
 3184}
 3185
 3186function getAliasedAttrName(name) {
 3187  return ALIASED_ATTR[name];
 3188}
 3189
 3190forEach({
 3191  data: jqLiteData,
 3192  removeData: jqLiteRemoveData,
 3193  hasData: jqLiteHasData,
 3194  cleanData: jqLiteCleanData
 3195}, function(fn, name) {
 3196  JQLite[name] = fn;
 3197});
 3198
 3199forEach({
 3200  data: jqLiteData,
 3201  inheritedData: jqLiteInheritedData,
 3202
 3203  scope: function(element) {
 3204    // Can't use jqLiteData here directly so we stay compatible with jQuery!
 3205    return jqLite.data(element, '$scope') || jqLiteInheritedData(element.parentNode || element, ['$isolateScope', '$scope']);
 3206  },
 3207
 3208  isolateScope: function(element) {
 3209    // Can't use jqLiteData here directly so we stay compatible with jQuery!
 3210    return jqLite.data(element, '$isolateScope') || jqLite.data(element, '$isolateScopeNoTemplate');
 3211  },
 3212
 3213  controller: jqLiteController,
 3214
 3215  injector: function(element) {
 3216    return jqLiteInheritedData(element, '$injector');
 3217  },
 3218
 3219  removeAttr: function(element, name) {
 3220    element.removeAttribute(name);
 3221  },
 3222
 3223  hasClass: jqLiteHasClass,
 3224
 3225  css: function(element, name, value) {
 3226    name = camelCase(name);
 3227
 3228    if (isDefined(value)) {
 3229      element.style[name] = value;
 3230    } else {
 3231      return element.style[name];
 3232    }
 3233  },
 3234
 3235  attr: function(element, name, value) {
 3236    var nodeType = element.nodeType;
 3237    if (nodeType === NODE_TYPE_TEXT || nodeType === NODE_TYPE_ATTRIBUTE || nodeType === NODE_TYPE_COMMENT) {
 3238      return;
 3239    }
 3240    var lowercasedName = lowercase(name);
 3241    if (BOOLEAN_ATTR[lowercasedName]) {
 3242      if (isDefined(value)) {
 3243        if (!!value) {
 3244          element[name] = true;
 3245          element.setAttribute(name, lowercasedName);
 3246        } else {
 3247          element[name] = false;
 3248          element.removeAttribute(lowercasedName);
 3249        }
 3250      } else {
 3251        return (element[name] ||
 3252                 (element.attributes.getNamedItem(name) || noop).specified)
 3253               ? lowercasedName
 3254               : undefined;
 3255      }
 3256    } else if (isDefined(value)) {
 3257      element.setAttribute(name, value);
 3258    } else if (element.getAttribute) {
 3259      // the extra argument "2" is to get the right thing for a.href in IE, see jQuery code
 3260      // some elements (e.g. Document) don't have get attribute, so return undefined
 3261      var ret = element.getAttribute(name, 2);
 3262      // normalize non-existing attributes to undefined (as jQuery)
 3263      return ret === null ? undefined : ret;
 3264    }
 3265  },
 3266
 3267  prop: function(element, name, value) {
 3268    if (isDefined(value)) {
 3269      element[name] = value;
 3270    } else {
 3271      return element[name];
 3272    }
 3273  },
 3274
 3275  text: (function() {
 3276    getText.$dv = '';
 3277    return getText;
 3278
 3279    function getText(element, value) {
 3280      if (isUndefined(value)) {
 3281        var nodeType = element.nodeType;
 3282        return (nodeType === NODE_TYPE_ELEMENT || nodeType === NODE_TYPE_TEXT) ? element.textContent : '';
 3283      }
 3284      element.textContent = value;
 3285    }
 3286  })(),
 3287
 3288  val: function(element, value) {
 3289    if (isUndefined(value)) {
 3290      if (element.multiple && nodeName_(element) === 'select') {
 3291        var result = [];
 3292        forEach(element.options, function(option) {
 3293          if (option.selected) {
 3294            result.push(option.value || option.text);
 3295          }
 3296        });
 3297        return result.length === 0 ? null : result;
 3298      }
 3299      return element.value;
 3300    }
 3301    element.value = value;
 3302  },
 3303
 3304  html: function(element, value) {
 3305    if (isUndefined(value)) {
 3306      return element.innerHTML;
 3307    }
 3308    jqLiteDealoc(element, true);
 3309    element.innerHTML = value;
 3310  },
 3311
 3312  empty: jqLiteEmpty
 3313}, function(fn, name) {
 3314  /**
 3315   * Properties: writes return selection, reads return first value
 3316   */
 3317  JQLite.prototype[name] = function(arg1, arg2) {
 3318    var i, key;
 3319    var nodeCount = this.length;
 3320
 3321    // jqLiteHasClass has only two arguments, but is a getter-only fn, so we need to special-case it
 3322    // in a way that survives minification.
 3323    // jqLiteEmpty takes no arguments but is a setter.
 3324    if (fn !== jqLiteEmpty &&
 3325        (isUndefined((fn.length == 2 && (fn !== jqLiteHasClass && fn !== jqLiteController)) ? arg1 : arg2))) {
 3326      if (isObject(arg1)) {
 3327
 3328        // we are a write, but the object properties are the key/values
 3329        for (i = 0; i < nodeCount; i++) {
 3330          if (fn === jqLiteData) {
 3331            // data() takes the whole object in jQuery
 3332            fn(this[i], arg1);
 3333          } else {
 3334            for (key in arg1) {
 3335              fn(this[i], key, arg1[key]);
 3336            }
 3337          }
 3338        }
 3339        // return self for chaining
 3340        return this;
 3341      } else {
 3342        // we are a read, so read the first child.
 3343        // TODO: do we still need this?
 3344        var value = fn.$dv;
 3345        // Only if we have $dv do we iterate over all, otherwise it is just the first element.
 3346        var jj = (isUndefined(value)) ? Math.min(nodeCount, 1) : nodeCount;
 3347        for (var j = 0; j < jj; j++) {
 3348          var nodeValue = fn(this[j], arg1, arg2);
 3349          value = value ? value + nodeValue : nodeValue;
 3350        }
 3351        return value;
 3352      }
 3353    } else {
 3354      // we are a write, so apply to all children
 3355      for (i = 0; i < nodeCount; i++) {
 3356        fn(this[i], arg1, arg2);
 3357      }
 3358      // return self for chaining
 3359      return this;
 3360    }
 3361  };
 3362});
 3363
 3364function createEventHandler(element, events) {
 3365  var eventHandler = function(event, type) {
 3366    // jQuery specific api
 3367    event.isDefaultPrevented = function() {
 3368      return event.defaultPrevented;
 3369    };
 3370
 3371    var eventFns = events[type || event.type];
 3372    var eventFnsLength = eventFns ? eventFns.length : 0;
 3373
 3374    if (!eventFnsLength) return;
 3375
 3376    if (isUndefined(event.immediatePropagationStopped)) {
 3377      var originalStopImmediatePropagation = event.stopImmediatePropagation;
 3378      event.stopImmediatePropagation = function() {
 3379        event.immediatePropagationStopped = true;
 3380
 3381        if (event.stopPropagation) {
 3382          event.stopPropagation();
 3383        }
 3384
 3385        if (originalStopImmediatePropagation) {
 3386          originalStopImmediatePropagation.call(event);
 3387        }
 3388      };
 3389    }
 3390
 3391    event.isImmediatePropagationStopped = function() {
 3392      return event.immediatePropagationStopped === true;
 3393    };
 3394
 3395    // Some events have special handlers that wrap the real handler
 3396    var handlerWrapper = eventFns.specialHandlerWrapper || defaultHandlerWrapper;
 3397
 3398    // Copy event handlers in case event handlers array is modified during execution.
 3399    if ((eventFnsLength > 1)) {
 3400      eventFns = shallowCopy(eventFns);
 3401    }
 3402
 3403    for (var i = 0; i < eventFnsLength; i++) {
 3404      if (!event.isImmediatePropagationStopped()) {
 3405        handlerWrapper(element, event, eventFns[i]);
 3406      }
 3407    }
 3408  };
 3409
 3410  // TODO: this is a hack for angularMocks/clearDataCache that makes it possible to deregister all
 3411  //       events on `element`
 3412  eventHandler.elem = element;
 3413  return eventHandler;
 3414}
 3415
 3416function defaultHandlerWrapper(element, event, handler) {
 3417  handler.call(element, event);
 3418}
 3419
 3420function specialMouseHandlerWrapper(target, event, handler) {
 3421  // Refer to jQuery's implementation of mouseenter & mouseleave
 3422  // Read about mouseenter and mouseleave:
 3423  // http://www.quirksmode.org/js/events_mouse.html#link8
 3424  var related = event.relatedTarget;
 3425  // For mousenter/leave call the handler if related is outside the target.
 3426  // NB: No relatedTarget if the mouse left/entered the browser window
 3427  if (!related || (related !== target && !jqLiteContains.call(target, related))) {
 3428    handler.call(target, event);
 3429  }
 3430}
 3431
 3432//////////////////////////////////////////
 3433// Functions iterating traversal.
 3434// These functions chain results into a single
 3435// selector.
 3436//////////////////////////////////////////
 3437forEach({
 3438  removeData: jqLiteRemoveData,
 3439
 3440  on: function jqLiteOn(element, type, fn, unsupported) {
 3441    if (isDefined(unsupported)) throw jqLiteMinErr('onargs', 'jqLite#on() does not support the `selector` or `eventData` parameters');
 3442
 3443    // Do not add event handlers to non-elements because they will not be cleaned up.
 3444    if (!jqLiteAcceptsData(element)) {
 3445      return;
 3446    }
 3447
 3448    var expandoStore = jqLiteExpandoStore(element, true);
 3449    var events = expandoStore.events;
 3450    var handle = expandoStore.handle;
 3451
 3452    if (!handle) {
 3453      handle = expandoStore.handle = createEventHandler(element, events);
 3454    }
 3455
 3456    // http://jsperf.com/string-indexof-vs-split
 3457    var types = type.indexOf(' ') >= 0 ? type.split(' ') : [type];
 3458    var i = types.length;
 3459
 3460    var addHandler = function(type, specialHandlerWrapper, noEventListener) {
 3461      var eventFns = events[type];
 3462
 3463      if (!eventFns) {
 3464        eventFns = events[type] = [];
 3465        eventFns.specialHandlerWrapper = specialHandlerWrapper;
 3466        if (type !== '$destroy' && !noEventListener) {
 3467          addEventListenerFn(element, type, handle);
 3468        }
 3469      }
 3470
 3471      eventFns.push(fn);
 3472    };
 3473
 3474    while (i--) {
 3475      type = types[i];
 3476      if (MOUSE_EVENT_MAP[type]) {
 3477        addHandler(MOUSE_EVENT_MAP[type], specialMouseHandlerWrapper);
 3478        addHandler(type, undefined, true);
 3479      } else {
 3480        addHandler(type);
 3481      }
 3482    }
 3483  },
 3484
 3485  off: jqLiteOff,
 3486
 3487  one: function(element, type, fn) {
 3488    element = jqLite(element);
 3489
 3490    //add the listener twice so that when it is called
 3491    //you can remove the original function and still be
 3492    //able to call element.off(ev, fn) normally
 3493    element.on(type, function onFn() {
 3494      element.off(type, fn);
 3495      element.off(type, onFn);
 3496    });
 3497    element.on(type, fn);
 3498  },
 3499
 3500  replaceWith: function(element, replaceNode) {
 3501    var index, parent = element.parentNode;
 3502    jqLiteDealoc(element);
 3503    forEach(new JQLite(replaceNode), function(node) {
 3504      if (index) {
 3505        parent.insertBefore(node, index.nextSibling);
 3506      } else {
 3507        parent.replaceChild(node, element);
 3508      }
 3509      index = node;
 3510    });
 3511  },
 3512
 3513  children: function(element) {
 3514    var children = [];
 3515    forEach(element.childNodes, function(element) {
 3516      if (element.nodeType === NODE_TYPE_ELEMENT) {
 3517        children.push(element);
 3518      }
 3519    });
 3520    return children;
 3521  },
 3522
 3523  contents: function(element) {
 3524    return element.contentDocument || element.childNodes || [];
 3525  },
 3526
 3527  append: function(element, node) {
 3528    var nodeType = element.nodeType;
 3529    if (nodeType !== NODE_TYPE_ELEMENT && nodeType !== NODE_TYPE_DOCUMENT_FRAGMENT) return;
 3530
 3531    node = new JQLite(node);
 3532
 3533    for (var i = 0, ii = node.length; i < ii; i++) {
 3534      var child = node[i];
 3535      element.appendChild(child);
 3536    }
 3537  },
 3538
 3539  prepend: function(element, node) {
 3540    if (element.nodeType === NODE_TYPE_ELEMENT) {
 3541      var index = element.firstChild;
 3542      forEach(new JQLite(node), function(child) {
 3543        element.insertBefore(child, index);
 3544      });
 3545    }
 3546  },
 3547
 3548  wrap: function(element, wrapNode) {
 3549    jqLiteWrapNode(element, jqLite(wrapNode).eq(0).clone()[0]);
 3550  },
 3551
 3552  remove: jqLiteRemove,
 3553
 3554  detach: function(element) {
 3555    jqLiteRemove(element, true);
 3556  },
 3557
 3558  after: function(element, newElement) {
 3559    var index = element, parent = element.parentNode;
 3560    newElement = new JQLite(newElement);
 3561
 3562    for (var i = 0, ii = newElement.length; i < ii; i++) {
 3563      var node = newElement[i];
 3564      parent.insertBefore(node, index.nextSibling);
 3565      index = node;
 3566    }
 3567  },
 3568
 3569  addClass: jqLiteAddClass,
 3570  removeClass: jqLiteRemoveClass,
 3571
 3572  toggleClass: function(element, selector, condition) {
 3573    if (selector) {
 3574      forEach(selector.split(' '), function(className) {
 3575        var classCondition = condition;
 3576        if (isUndefined(classCondition)) {
 3577          classCondition = !jqLiteHasClass(element, className);
 3578        }
 3579        (classCondition ? jqLiteAddClass : jqLiteRemoveClass)(element, className);
 3580      });
 3581    }
 3582  },
 3583
 3584  parent: function(element) {
 3585    var parent = element.parentNode;
 3586    return parent && parent.nodeType !== NODE_TYPE_DOCUMENT_FRAGMENT ? parent : null;
 3587  },
 3588
 3589  next: function(element) {
 3590    return element.nextElementSibling;
 3591  },
 3592
 3593  find: function(element, selector) {
 3594    if (element.getElementsByTagName) {
 3595      return element.getElementsByTagName(selector);
 3596    } else {
 3597      return [];
 3598    }
 3599  },
 3600
 3601  clone: jqLiteClone,
 3602
 3603  triggerHandler: function(element, event, extraParameters) {
 3604
 3605    var dummyEvent, eventFnsCopy, handlerArgs;
 3606    var eventName = event.type || event;
 3607    var expandoStore = jqLiteExpandoStore(element);
 3608    var events = expandoStore && expandoStore.events;
 3609    var eventFns = events && events[eventName];
 3610
 3611    if (eventFns) {
 3612      // Create a dummy event to pass to the handlers
 3613      dummyEvent = {
 3614        preventDefault: function() { this.defaultPrevented = true; },
 3615        isDefaultPrevented: function() { return this.defaultPrevented === true; },
 3616        stopImmediatePropagation: function() { this.immediatePropagationStopped = true; },
 3617        isImmediatePropagationStopped: function() { return this.immediatePropagationStopped === true; },
 3618        stopPropagation: noop,
 3619        type: eventName,
 3620        target: element
 3621      };
 3622
 3623      // If a custom event was provided then extend our dummy event with it
 3624      if (event.type) {
 3625        dummyEvent = extend(dummyEvent, event);
 3626      }
 3627
 3628      // Copy event handlers in case event handlers array is modified during execution.
 3629      eventFnsCopy = shallowCopy(eventFns);
 3630      handlerArgs = extraParameters ? [dummyEvent].concat(extraParameters) : [dummyEvent];
 3631
 3632      forEach(eventFnsCopy, function(fn) {
 3633        if (!dummyEvent.isImmediatePropagationStopped()) {
 3634          fn.apply(element, handlerArgs);
 3635        }
 3636      });
 3637    }
 3638  }
 3639}, function(fn, name) {
 3640  /**
 3641   * chaining functions
 3642   */
 3643  JQLite.prototype[name] = function(arg1, arg2, arg3) {
 3644    var value;
 3645
 3646    for (var i = 0, ii = this.length; i < ii; i++) {
 3647      if (isUndefined(value)) {
 3648        value = fn(this[i], arg1, arg2, arg3);
 3649        if (isDefined(value)) {
 3650          // any function which returns a value needs to be wrapped
 3651          value = jqLite(value);
 3652        }
 3653      } else {
 3654        jqLiteAddNodes(value, fn(this[i], arg1, arg2, arg3));
 3655      }
 3656    }
 3657    return isDefined(value) ? value : this;
 3658  };
 3659
 3660  // bind legacy bind/unbind to on/off
 3661  JQLite.prototype.bind = JQLite.prototype.on;
 3662  JQLite.prototype.unbind = JQLite.prototype.off;
 3663});
 3664
 3665
 3666// Provider for private $$jqLite service
 3667function $$jqLiteProvider() {
 3668  this.$get = function $$jqLite() {
 3669    return extend(JQLite, {
 3670      hasClass: function(node, classes) {
 3671        if (node.attr) node = node[0];
 3672        return jqLiteHasClass(node, classes);
 3673      },
 3674      addClass: function(node, classes) {
 3675        if (node.attr) node = node[0];
 3676        return jqLiteAddClass(node, classes);
 3677      },
 3678      removeClass: function(node, classes) {
 3679        if (node.attr) node = node[0];
 3680        return jqLiteRemoveClass(node, classes);
 3681      }
 3682    });
 3683  };
 3684}
 3685
 3686/**
 3687 * Computes a hash of an 'obj'.
 3688 * Hash of a:
 3689 *  string is string
 3690 *  number is number as string
 3691 *  object is either result of calling $$hashKey function on the object or uniquely generated id,
 3692 *         that is also assigned to the $$hashKey property of the object.
 3693 *
 3694 * @param obj
 3695 * @returns {string} hash string such that the same input will have the same hash string.
 3696 *         The resulting string key is in 'type:hashKey' format.
 3697 */
 3698function hashKey(obj, nextUidFn) {
 3699  var key = obj && obj.$$hashKey;
 3700
 3701  if (key) {
 3702    if (typeof key === 'function') {
 3703      key = obj.$$hashKey();
 3704    }
 3705    return key;
 3706  }
 3707
 3708  var objType = typeof obj;
 3709  if (objType == 'function' || (objType == 'object' && obj !== null)) {
 3710    key = obj.$$hashKey = objType + ':' + (nextUidFn || nextUid)();
 3711  } else {
 3712    key = objType + ':' + obj;
 3713  }
 3714
 3715  return key;
 3716}
 3717
 3718/**
 3719 * HashMap which can use objects as keys
 3720 */
 3721function HashMap(array, isolatedUid) {
 3722  if (isolatedUid) {
 3723    var uid = 0;
 3724    this.nextUid = function() {
 3725      return ++uid;
 3726    };
 3727  }
 3728  forEach(array, this.put, this);
 3729}
 3730HashMap.prototype = {
 3731  /**
 3732   * Store key value pair
 3733   * @param key key to store can be any type
 3734   * @param value value to store can be any type
 3735   */
 3736  put: function(key, value) {
 3737    this[hashKey(key, this.nextUid)] = value;
 3738  },
 3739
 3740  /**
 3741   * @param key
 3742   * @returns {Object} the value for the key
 3743   */
 3744  get: function(key) {
 3745    return this[hashKey(key, this.nextUid)];
 3746  },
 3747
 3748  /**
 3749   * Remove the key/value pair
 3750   * @param key
 3751   */
 3752  remove: function(key) {
 3753    var value = this[key = hashKey(key, this.nextUid)];
 3754    delete this[key];
 3755    return value;
 3756  }
 3757};
 3758
 3759var $$HashMapProvider = [function() {
 3760  this.$get = [function() {
 3761    return HashMap;
 3762  }];
 3763}];
 3764
 3765/**
 3766 * @ngdoc function
 3767 * @module ng
 3768 * @name angular.injector
 3769 * @kind function
 3770 *
 3771 * @description
 3772 * Creates an injector object that can be used for retrieving services as well as for
 3773 * dependency injection (see {@link guide/di dependency injection}).
 3774 *
 3775 * @param {Array.<string|Function>} modules A list of module functions or their aliases. See
 3776 *     {@link angular.module}. The `ng` module must be explicitly added.
 3777 * @param {boolean=} [strictDi=false] Whether the injector should be in strict mode, which
 3778 *     disallows argument name annotation inference.
 3779 * @returns {injector} Injector object. See {@link auto.$injector $injector}.
 3780 *
 3781 * @example
 3782 * Typical usage
 3783 * ```js
 3784 *   // create an injector
 3785 *   var $injector = angular.injector(['ng']);
 3786 *
 3787 *   // use the injector to kick off your application
 3788 *   // use the type inference to auto inject arguments, or use implicit injection
 3789 *   $injector.invoke(function($rootScope, $compile, $document) {
 3790 *     $compile($document)($rootScope);
 3791 *     $rootScope.$digest();
 3792 *   });
 3793 * ```
 3794 *
 3795 * Sometimes you want to get access to the injector of a currently running Angular app
 3796 * from outside Angular. Perhaps, you want to inject and compile some markup after the
 3797 * application has been bootstrapped. You can do this using the extra `injector()` added
 3798 * to JQuery/jqLite elements. See {@link angular.element}.
 3799 *
 3800 * *This is fairly rare but could be the case if a third party library is injecting the
 3801 * markup.*
 3802 *
 3803 * In the following example a new block of HTML containing a `ng-controller`
 3804 * directive is added to the end of the document body by JQuery. We then compile and link
 3805 * it into the current AngularJS scope.
 3806 *
 3807 * ```js
 3808 * var $div = $('<div ng-controller="MyCtrl">{{content.label}}</div>');
 3809 * $(document.body).append($div);
 3810 *
 3811 * angular.element(document).injector().invoke(function($compile) {
 3812 *   var scope = angular.element($div).scope();
 3813 *   $compile($div)(scope);
 3814 * });
 3815 * ```
 3816 */
 3817
 3818
 3819/**
 3820 * @ngdoc module
 3821 * @name auto
 3822 * @description
 3823 *
 3824 * Implicit module which gets automatically added to each {@link auto.$injector $injector}.
 3825 */
 3826
 3827var ARROW_ARG = /^([^\(]+?)=>/;
 3828var FN_ARGS = /^[^\(]*\(\s*([^\)]*)\)/m;
 3829var FN_ARG_SPLIT = /,/;
 3830var FN_ARG = /^\s*(_?)(\S+?)\1\s*$/;
 3831var STRIP_COMMENTS = /((\/\/.*$)|(\/\*[\s\S]*?\*\/))/mg;
 3832var $injectorMinErr = minErr('$injector');
 3833
 3834function extractArgs(fn) {
 3835  var fnText = fn.toString().replace(STRIP_COMMENTS, ''),
 3836      args = fnText.match(ARROW_ARG) || fnText.match(FN_ARGS);
 3837  return args;
 3838}
 3839
 3840function anonFn(fn) {
 3841  // For anonymous functions, showing at the very least the function signature can help in
 3842  // debugging.
 3843  var args = extractArgs(fn);
 3844  if (args) {
 3845    return 'function(' + (args[1] || '').replace(/[\s\r\n]+/, ' ') + ')';
 3846  }
 3847  return 'fn';
 3848}
 3849
 3850function annotate(fn, strictDi, name) {
 3851  var $inject,
 3852      argDecl,
 3853      last;
 3854
 3855  if (typeof fn === 'function') {
 3856    if (!($inject = fn.$inject)) {
 3857      $inject = [];
 3858      if (fn.length) {
 3859        if (strictDi) {
 3860          if (!isString(name) || !name) {
 3861            name = fn.name || anonFn(fn);
 3862          }
 3863          throw $injectorMinErr('strictdi',
 3864            '{0} is not using explicit annotation and cannot be invoked in strict mode', name);
 3865        }
 3866        argDecl = extractArgs(fn);
 3867        forEach(argDecl[1].split(FN_ARG_SPLIT), function(arg) {
 3868          arg.replace(FN_ARG, function(all, underscore, name) {
 3869            $inject.push(name);
 3870          });
 3871        });
 3872      }
 3873      fn.$inject = $inject;
 3874    }
 3875  } else if (isArray(fn)) {
 3876    last = fn.length - 1;
 3877    assertArgFn(fn[last], 'fn');
 3878    $inject = fn.slice(0, last);
 3879  } else {
 3880    assertArgFn(fn, 'fn', true);
 3881  }
 3882  return $inject;
 3883}
 3884
 3885///////////////////////////////////////
 3886
 3887/**
 3888 * @ngdoc service
 3889 * @name $injector
 3890 *
 3891 * @description
 3892 *
 3893 * `$injector` is used to retrieve object instances as defined by
 3894 * {@link auto.$provide provider}, instantiate types, invoke methods,
 3895 * and load modules.
 3896 *
 3897 * The following always holds true:
 3898 *
 3899 * ```js
 3900 *   var $injector = angular.injector();
 3901 *   expect($injector.get('$injector')).toBe($injector);
 3902 *   expect($injector.invoke(function($injector) {
 3903 *     return $injector;
 3904 *   })).toBe($injector);
 3905 * ```
 3906 *
 3907 * # Injection Function Annotation
 3908 *
 3909 * JavaScript does not have annotations, and annotations are needed for dependency injection. The
 3910 * following are all valid ways of annotating function with injection arguments and are equivalent.
 3911 *
 3912 * ```js
 3913 *   // inferred (only works if code not minified/obfuscated)
 3914 *   $injector.invoke(function(serviceA){});
 3915 *
 3916 *   // annotated
 3917 *   function explicit(serviceA) {};
 3918 *   explicit.$inject = ['serviceA'];
 3919 *   $injector.invoke(explicit);
 3920 *
 3921 *   // inline
 3922 *   $injector.invoke(['serviceA', function(serviceA){}]);
 3923 * ```
 3924 *
 3925 * ## Inference
 3926 *
 3927 * In JavaScript calling `toString()` on a function returns the function definition. The definition
 3928 * can then be parsed and the function arguments can be extracted. This method of discovering
 3929 * annotations is disallowed when the injector is in strict mode.
 3930 * *NOTE:* This does not work with minification, and obfuscation tools since these tools change the
 3931 * argument names.
 3932 *
 3933 * ## `$inject` Annotation
 3934 * By adding an `$inject` property onto a function the injection parameters can be specified.
 3935 *
 3936 * ## Inline
 3937 * As an array of injection names, where the last item in the array is the function to call.
 3938 */
 3939
 3940/**
 3941 * @ngdoc method
 3942 * @name $injector#get
 3943 *
 3944 * @description
 3945 * Return an instance of the service.
 3946 *
 3947 * @param {string} name The name of the instance to retrieve.
 3948 * @param {string=} caller An optional string to provide the origin of the function call for error messages.
 3949 * @return {*} The instance.
 3950 */
 3951
 3952/**
 3953 * @ngdoc method
 3954 * @name $injector#invoke
 3955 *
 3956 * @description
 3957 * Invoke the method and supply the method arguments from the `$injector`.
 3958 *
 3959 * @param {Function|Array.<string|Function>} fn The injectable function to invoke. Function parameters are
 3960 *   injected according to the {@link guide/di $inject Annotation} rules.
 3961 * @param {Object=} self The `this` for the invoked method.
 3962 * @param {Object=} locals Optional object. If preset then any argument names are read from this
 3963 *                         object first, before the `$injector` is consulted.
 3964 * @returns {*} the value returned by the invoked `fn` function.
 3965 */
 3966
 3967/**
 3968 * @ngdoc method
 3969 * @name $injector#has
 3970 *
 3971 * @description
 3972 * Allows the user to query if the particular service exists.
 3973 *
 3974 * @param {string} name Name of the service to query.
 3975 * @returns {boolean} `true` if injector has given service.
 3976 */
 3977
 3978/**
 3979 * @ngdoc method
 3980 * @name $injector#instantiate
 3981 * @description
 3982 * Create a new instance of JS type. The method takes a constructor function, invokes the new
 3983 * operator, and supplies all of the arguments to the constructor function as specified by the
 3984 * constructor annotation.
 3985 *
 3986 * @param {Function} Type Annotated constructor function.
 3987 * @param {Object=} locals Optional object. If preset then any argument names are read from this
 3988 * object first, before the `$injector` is consulted.
 3989 * @returns {Object} new instance of `Type`.
 3990 */
 3991
 3992/**
 3993 * @ngdoc method
 3994 * @name $injector#annotate
 3995 *
 3996 * @description
 3997 * Returns an array of service names which the function is requesting for injection. This API is
 3998 * used by the injector to determine which services need to be injected into the function when the
 3999 * function is invoked. There are three ways in which the function can be annotated with the needed
 4000 * dependencies.
 4001 *
 4002 * # Argument names
 4003 *
 4004 * The simplest form is to extract the dependencies from the arguments of the function. This is done
 4005 * by converting the function into a string using `toString()` method and extracting the argument
 4006 * names.
 4007 * ```js
 4008 *   // Given
 4009 *   function MyController($scope, $route) {
 4010 *     // ...
 4011 *   }
 4012 *
 4013 *   // Then
 4014 *   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);
 4015 * ```
 4016 *
 4017 * You can disallow this method by using strict injection mode.
 4018 *
 4019 * This method does not work with code minification / obfuscation. For this reason the following
 4020 * annotation strategies are supported.
 4021 *
 4022 * # The `$inject` property
 4023 *
 4024 * If a function has an `$inject` property and its value is an array of strings, then the strings
 4025 * represent names of services to be injected into the function.
 4026 * ```js
 4027 *   // Given
 4028 *   var MyController = function(obfuscatedScope, obfuscatedRoute) {
 4029 *     // ...
 4030 *   }
 4031 *   // Define function dependencies
 4032 *   MyController['$inject'] = ['$scope', '$route'];
 4033 *
 4034 *   // Then
 4035 *   expect(injector.annotate(MyController)).toEqual(['$scope', '$route']);
 4036 * ```
 4037 *
 4038 * # The array notation
 4039 *
 4040 * It is often desirable to inline Injected functions and that's when setting the `$inject` property
 4041 * is very inconvenient. In these situations using the array notation to specify the dependencies in
 4042 * a way that survives minification is a better choice:
 4043 *
 4044 * ```js
 4045 *   // We wish to write this (not minification / obfuscation safe)
 4046 *   injector.invoke(function($compile, $rootScope) {
 4047 *     // ...
 4048 *   });
 4049 *
 4050 *   // We are forced to write break inlining
 4051 *   var tmpFn = function(obfuscatedCompile, obfuscatedRootScope) {
 4052 *     // ...
 4053 *   };
 4054 *   tmpFn.$inject = ['$compile', '$rootScope'];
 4055 *   injector.invoke(tmpFn);
 4056 *
 4057 *   // To better support inline function the inline annotation is supported
 4058 *   injector.invoke(['$compile', '$rootScope', function(obfCompile, obfRootScope) {
 4059 *     // ...
 4060 *   }]);
 4061 *
 4062 *   // Therefore
 4063 *   expect(injector.annotate(
 4064 *      ['$compile', '$rootScope', function(obfus_$compile, obfus_$rootScope) {}])
 4065 *    ).toEqual(['$compile', '$rootScope']);
 4066 * ```
 4067 *
 4068 * @param {Function|Array.<string|Function>} fn Function for which dependent service names need to
 4069 * be retrieved as described above.
 4070 *
 4071 * @param {boolean=} [strictDi=false] Disallow argument name annotation inference.
 4072 *
 4073 * @returns {Array.<string>} The names of the services which the function requires.
 4074 */
 4075
 4076
 4077
 4078
 4079/**
 4080 * @ngdoc service
 4081 * @name $provide
 4082 *
 4083 * @description
 4084 *
 4085 * The {@link auto.$provide $provide} service has a number of methods for registering components
 4086 * with the {@link auto.$injector $injector}. Many of these functions are also exposed on
 4087 * {@link angular.Module}.
 4088 *
 4089 * An Angular **service** is a singleton object created by a **service factory**.  These **service
 4090 * factories** are functions which, in turn, are created by a **service provider**.
 4091 * The **service providers** are constructor functions. When instantiated they must contain a
 4092 * property called `$get`, which holds the **service factory** function.
 4093 *
 4094 * When you request a service, the {@link auto.$injector $injector} is responsible for finding the
 4095 * correct **service provider**, instantiating it and then calling its `$get` **service factory**
 4096 * function to get the instance of the **service**.
 4097 *
 4098 * Often services have no configuration options and there is no need to add methods to the service
 4099 * provider.  The provider will be no more than a constructor function with a `$get` property. For
 4100 * these cases the {@link auto.$provide $provide} service has additional helper methods to register
 4101 * services without specifying a provider.
 4102 *
 4103 * * {@link auto.$provide#provider provider(provider)} - registers a **service provider** with the
 4104 *     {@link auto.$injector $injector}
 4105 * * {@link auto.$provide#constant constant(obj)} - registers a value/object that can be accessed by
 4106 *     providers and services.
 4107 * * {@link auto.$provide#value value(obj)} - registers a value/object that can only be accessed by
 4108 *     services, not providers.
 4109 * * {@link auto.$provide#factory factory(fn)} - registers a service **factory function**, `fn`,
 4110 *     that will be wrapped in a **service provider** object, whose `$get` property will contain the
 4111 *     given factory function.
 4112 * * {@link auto.$provide#service service(class)} - registers a **constructor function**, `class`
 4113 *     that will be wrapped in a **service provider** object, whose `$get` property will instantiate
 4114 *      a new object using the given constructor function.
 4115 *
 4116 * See the individual methods for more information and examples.
 4117 */
 4118
 4119/**
 4120 * @ngdoc method
 4121 * @name $provide#provider
 4122 * @description
 4123 *
 4124 * Register a **provider function** with the {@link auto.$injector $injector}. Provider functions
 4125 * are constructor functions, whose instances are responsible for "providing" a factory for a
 4126 * service.
 4127 *
 4128 * Service provider names start with the name of the service they provide followed by `Provider`.
 4129 * For example, the {@link ng.$log $log} service has a provider called
 4130 * {@link ng.$logProvider $logProvider}.
 4131 *
 4132 * Service provider objects can have additional methods which allow configuration of the provider
 4133 * and its service. Importantly, you can configure what kind of service is created by the `$get`
 4134 * method, or how that service will act. For example, the {@link ng.$logProvider $logProvider} has a
 4135 * method {@link ng.$logProvider#debugEnabled debugEnabled}
 4136 * which lets you specify whether the {@link ng.$log $log} service will log debug messages to the
 4137 * console or not.
 4138 *
 4139 * @param {string} name The name of the instance. NOTE: the provider will be available under `name +
 4140                        'Provider'` key.
 4141 * @param {(Object|function())} provider If the provider is:
 4142 *
 4143 *   - `Object`: then it should have a `$get` method. The `$get` method will be invoked using
 4144 *     {@link auto.$injector#invoke $injector.invoke()} when an instance needs to be created.
 4145 *   - `Constructor`: a new instance of the provider will be created using
 4146 *     {@link auto.$injector#instantiate $injector.instantiate()}, then treated as `object`.
 4147 *
 4148 * @returns {Object} registered provider instance
 4149
 4150 * @example
 4151 *
 4152 * The following example shows how to create a simple event tracking service and register it using
 4153 * {@link auto.$provide#provider $provide.provider()}.
 4154 *
 4155 * ```js
 4156 *  // Define the eventTracker provider
 4157 *  function EventTrackerProvider() {
 4158 *    var trackingUrl = '/track';
 4159 *
 4160 *    // A provider method for configuring where the tracked events should been saved
 4161 *    this.setTrackingUrl = function(url) {
 4162 *      trackingUrl = url;
 4163 *    };
 4164 *
 4165 *    // The service factory function
 4166 *    this.$get = ['$http', function($http) {
 4167 *      var trackedEvents = {};
 4168 *      return {
 4169 *        // Call this to track an event
 4170 *        event: function(event) {
 4171 *          var count = trackedEvents[event] || 0;
 4172 *          count += 1;
 4173 *          trackedEvents[event] = count;
 4174 *          return count;
 4175 *        },
 4176 *        // Call this to save the tracked events to the trackingUrl
 4177 *        save: function() {
 4178 *          $http.post(trackingUrl, trackedEvents);
 4179 *        }
 4180 *      };
 4181 *    }];
 4182 *  }
 4183 *
 4184 *  describe('eventTracker', function() {
 4185 *    var postSpy;
 4186 *
 4187 *    beforeEach(module(function($provide) {
 4188 *      // Register the eventTracker provider
 4189 *      $provide.provider('eventTracker', EventTrackerProvider);
 4190 *    }));
 4191 *
 4192 *    beforeEach(module(function(eventTrackerProvider) {
 4193 *      // Configure eventTracker provider
 4194 *      eventTrackerProvider.setTrackingUrl('/custom-track');
 4195 *    }));
 4196 *
 4197 *    it('tracks events', inject(function(eventTracker) {
 4198 *      expect(eventTracker.event('login')).toEqual(1);
 4199 *      expect(eventTracker.event('login')).toEqual(2);
 4200 *    }));
 4201 *
 4202 *    it('saves to the tracking url', inject(function(eventTracker, $http) {
 4203 *      postSpy = spyOn($http, 'post');
 4204 *      eventTracker.event('login');
 4205 *      eventTracker.save();
 4206 *      expect(postSpy).toHaveBeenCalled();
 4207 *      expect(postSpy.mostRecentCall.args[0]).not.toEqual('/track');
 4208 *      expect(postSpy.mostRecentCall.args[0]).toEqual('/custom-track');
 4209 *      expect(postSpy.mostRecentCall.args[1]).toEqual({ 'login': 1 });
 4210 *    }));
 4211 *  });
 4212 * ```
 4213 */
 4214
 4215/**
 4216 * @ngdoc method
 4217 * @name $provide#factory
 4218 * @description
 4219 *
 4220 * Register a **service factory**, which will be called to return the service instance.
 4221 * This is short for registering a service where its provider consists of only a `$get` property,
 4222 * which is the given service factory function.
 4223 * You should use {@link auto.$provide#factory $provide.factory(getFn)} if you do not need to
 4224 * configure your service in a provider.
 4225 *
 4226 * @param {string} name The name of the instance.
 4227 * @param {Function|Array.<string|Function>} $getFn The injectable $getFn for the instance creation.
 4228 *                      Internally this is a short hand for `$provide.provider(name, {$get: $getFn})`.
 4229 * @returns {Object} registered provider instance
 4230 *
 4231 * @example
 4232 * Here is an example of registering a service
 4233 * ```js
 4234 *   $provide.factory('ping', ['$http', function($http) {
 4235 *     return function ping() {
 4236 *       return $http.send('/ping');
 4237 *     };
 4238 *   }]);
 4239 * ```
 4240 * You would then inject and use this service like this:
 4241 * ```js
 4242 *   someModule.controller('Ctrl', ['ping', function(ping) {
 4243 *     ping();
 4244 *   }]);
 4245 * ```
 4246 */
 4247
 4248
 4249/**
 4250 * @ngdoc method
 4251 * @name $provide#service
 4252 * @description
 4253 *
 4254 * Register a **service constructor**, which will be invoked with `new` to create the service
 4255 * instance.
 4256 * This is short for registering a service where its provider's `$get` property is a factory
 4257 * function that returns an instance instantiated by the injector from the service constructor
 4258 * function.
 4259 *
 4260 * Internally it looks a bit like this:
 4261 *
 4262 * ```
 4263 * {
 4264 *   $get: function() {
 4265 *     return $injector.instantiate(constructor);
 4266 *   }
 4267 * }
 4268 * ```
 4269 *
 4270 *
 4271 * You should use {@link auto.$provide#service $provide.service(class)} if you define your service
 4272 * as a type/class.
 4273 *
 4274 * @param {string} name The name of the instance.
 4275 * @param {Function|Array.<string|Function>} constructor An injectable class (constructor function)
 4276 *     that will be instantiated.
 4277 * @returns {Object} registered provider instance
 4278 *
 4279 * @example
 4280 * Here is an example of registering a service using
 4281 * {@link auto.$provide#service $provide.service(class)}.
 4282 * ```js
 4283 *   var Ping = function($http) {
 4284 *     this.$http = $http;
 4285 *   };
 4286 *
 4287 *   Ping.$inject = ['$http'];
 4288 *
 4289 *   Ping.prototype.send = function() {
 4290 *     return this.$http.get('/ping');
 4291 *   };
 4292 *   $provide.service('ping', Ping);
 4293 * ```
 4294 * You would then inject and use this service like this:
 4295 * ```js
 4296 *   someModule.controller('Ctrl', ['ping', function(ping) {
 4297 *     ping.send();
 4298 *   }]);
 4299 * ```
 4300 */
 4301
 4302
 4303/**
 4304 * @ngdoc method
 4305 * @name $provide#value
 4306 * @description
 4307 *
 4308 * Register a **value service** with the {@link auto.$injector $injector}, such as a string, a
 4309 * number, an array, an object or a function. This is short for registering a service where its
 4310 * provider's `$get` property is a factory function that takes no arguments and returns the **value
 4311 * service**. That also means it is not possible to inject other services into a value service.
 4312 *
 4313 * Value services are similar to constant services, except that they cannot be injected into a
 4314 * module configuration function (see {@link angular.Module#config}) but they can be overridden by
 4315 * an Angular {@link auto.$provide#decorator decorator}.
 4316 *
 4317 * @param {string} name The name of the instance.
 4318 * @param {*} value The value.
 4319 * @returns {Object} registered provider instance
 4320 *
 4321 * @example
 4322 * Here are some examples of creating value services.
 4323 * ```js
 4324 *   $provide.value('ADMIN_USER', 'admin');
 4325 *
 4326 *   $provide.value('RoleLookup', { admin: 0, writer: 1, reader: 2 });
 4327 *
 4328 *   $provide.value('halfOf', function(value) {
 4329 *     return value / 2;
 4330 *   });
 4331 * ```
 4332 */
 4333
 4334
 4335/**
 4336 * @ngdoc method
 4337 * @name $provide#constant
 4338 * @description
 4339 *
 4340 * Register a **constant service** with the {@link auto.$injector $injector}, such as a string,
 4341 * a number, an array, an object or a function. Like the {@link auto.$provide#value value}, it is not
 4342 * possible to inject other services into a constant.
 4343 *
 4344 * But unlike {@link auto.$provide#value value}, a constant can be
 4345 * injected into a module configuration function (see {@link angular.Module#config}) and it cannot
 4346 * be overridden by an Angular {@link auto.$provide#decorator decorator}.
 4347 *
 4348 * @param {string} name The name of the constant.
 4349 * @param {*} value The constant value.
 4350 * @returns {Object} registered instance
 4351 *
 4352 * @example
 4353 * Here a some examples of creating constants:
 4354 * ```js
 4355 *   $provide.constant('SHARD_HEIGHT', 306);
 4356 *
 4357 *   $provide.constant('MY_COLOURS', ['red', 'blue', 'grey']);
 4358 *
 4359 *   $provide.constant('double', function(value) {
 4360 *     return value * 2;
 4361 *   });
 4362 * ```
 4363 */
 4364
 4365
 4366/**
 4367 * @ngdoc method
 4368 * @name $provide#decorator
 4369 * @description
 4370 *
 4371 * Register a **service decorator** with the {@link auto.$injector $injector}. A service decorator
 4372 * intercepts the creation of a service, allowing it to override or modify the behavior of the
 4373 * service. The object returned by the decorator may be the original service, or a new service
 4374 * object which replaces or wraps and delegates to the original service.
 4375 *
 4376 * @param {string} name The name of the service to decorate.
 4377 * @param {Function|Array.<string|Function>} decorator This function will be invoked when the service needs to be
 4378 *    instantiated and should return the decorated service instance. The function is called using
 4379 *    the {@link auto.$injector#invoke injector.invoke} method and is therefore fully injectable.
 4380 *    Local injection arguments:
 4381 *
 4382 *    * `$delegate` - The original service instance, which can be monkey patched, configured,
 4383 *      decorated or delegated to.
 4384 *
 4385 * @example
 4386 * Here we decorate the {@link ng.$log $log} service to convert warnings to errors by intercepting
 4387 * calls to {@link ng.$log#error $log.warn()}.
 4388 * ```js
 4389 *   $provide.decorator('$log', ['$delegate', function($delegate) {
 4390 *     $delegate.warn = $delegate.error;
 4391 *     return $delegate;
 4392 *   }]);
 4393 * ```
 4394 */
 4395
 4396
 4397function createInjector(modulesToLoad, strictDi) {
 4398  strictDi = (strictDi === true);
 4399  var INSTANTIATING = {},
 4400      providerSuffix = 'Provider',
 4401      path = [],
 4402      loadedModules = new HashMap([], true),
 4403      providerCache = {
 4404        $provide: {
 4405            provider: supportObject(provider),
 4406            factory: supportObject(factory),
 4407            service: supportObject(service),
 4408            value: supportObject(value),
 4409            constant: supportObject(constant),
 4410            decorator: decorator
 4411          }
 4412      },
 4413      providerInjector = (providerCache.$injector =
 4414          createInternalInjector(providerCache, function(serviceName, caller) {
 4415            if (angular.isString(caller)) {
 4416              path.push(caller);
 4417            }
 4418            throw $injectorMinErr('unpr', "Unknown provider: {0}", path.join(' <- '));
 4419          })),
 4420      instanceCache = {},
 4421      protoInstanceInjector =
 4422          createInternalInjector(instanceCache, function(serviceName, caller) {
 4423            var provider = providerInjector.get(serviceName + providerSuffix, caller);
 4424            return instanceInjector.invoke(
 4425                provider.$get, provider, undefined, serviceName);
 4426          }),
 4427      instanceInjector = protoInstanceInjector;
 4428
 4429  providerCache['$injector' + providerSuffix] = { $get: valueFn(protoInstanceInjector) };
 4430  var runBlocks = loadModules(modulesToLoad);
 4431  instanceInjector = protoInstanceInjector.get('$injector');
 4432  instanceInjector.strictDi = strictDi;
 4433  forEach(runBlocks, function(fn) { if (fn) instanceInjector.invoke(fn); });
 4434
 4435  return instanceInjector;
 4436
 4437  ////////////////////////////////////
 4438  // $provider
 4439  ////////////////////////////////////
 4440
 4441  function supportObject(delegate) {
 4442    return function(key, value) {
 4443      if (isObject(key)) {
 4444        forEach(key, reverseParams(delegate));
 4445      } else {
 4446        return delegate(key, value);
 4447      }
 4448    };
 4449  }
 4450
 4451  function provider(name, provider_) {
 4452    assertNotHasOwnProperty(name, 'service');
 4453    if (isFunction(provider_) || isArray(provider_)) {
 4454      provider_ = providerInjector.instantiate(provider_);
 4455    }
 4456    if (!provider_.$get) {
 4457      throw $injectorMinErr('pget', "Provider '{0}' must define $get factory method.", name);
 4458    }
 4459    return providerCache[name + providerSuffix] = provider_;
 4460  }
 4461
 4462  function enforceReturnValue(name, factory) {
 4463    return function enforcedReturnValue() {
 4464      var result = instanceInjector.invoke(factory, this);
 4465      if (isUndefined(result)) {
 4466        throw $injectorMinErr('undef', "Provider '{0}' must return a value from $get factory method.", name);
 4467      }
 4468      return result;
 4469    };
 4470  }
 4471
 4472  function factory(name, factoryFn, enforce) {
 4473    return provider(name, {
 4474      $get: enforce !== false ? enforceReturnValue(name, factoryFn) : factoryFn
 4475    });
 4476  }
 4477
 4478  function service(name, constructor) {
 4479    return factory(name, ['$injector', function($injector) {
 4480      return $injector.instantiate(constructor);
 4481    }]);
 4482  }
 4483
 4484  function value(name, val) { return factory(name, valueFn(val), false); }
 4485
 4486  function constant(name, value) {
 4487    assertNotHasOwnProperty(name, 'constant');
 4488    providerCache[name] = value;
 4489    instanceCache[name] = value;
 4490  }
 4491
 4492  function decorator(serviceName, decorFn) {
 4493    var origProvider = providerInjector.get(serviceName + providerSuffix),
 4494        orig$get = origProvider.$get;
 4495
 4496    origProvider.$get = function() {
 4497      var origInstance = instanceInjector.invoke(orig$get, origProvider);
 4498      return instanceInjector.invoke(decorFn, null, {$delegate: origInstance});
 4499    };
 4500  }
 4501
 4502  ////////////////////////////////////
 4503  // Module Loading
 4504  ////////////////////////////////////
 4505  function loadModules(modulesToLoad) {
 4506    assertArg(isUndefined(modulesToLoad) || isArray(modulesToLoad), 'modulesToLoad', 'not an array');
 4507    var runBlocks = [], moduleFn;
 4508    forEach(modulesToLoad, function(module) {
 4509      if (loadedModules.get(module)) return;
 4510      loadedModules.put(module, true);
 4511
 4512      function runInvokeQueue(queue) {
 4513        var i, ii;
 4514        for (i = 0, ii = queue.length; i < ii; i++) {
 4515          var invokeArgs = queue[i],
 4516              provider = providerInjector.get(invokeArgs[0]);
 4517
 4518          provider[invokeArgs[1]].apply(provider, invokeArgs[2]);
 4519        }
 4520      }
 4521
 4522      try {
 4523        if (isString(module)) {
 4524          moduleFn = angularModule(module);
 4525          runBlocks = runBlocks.concat(loadModules(moduleFn.requires)).concat(moduleFn._runBlocks);
 4526          runInvokeQueue(moduleFn._invokeQueue);
 4527          runInvokeQueue(moduleFn._configBlocks);
 4528        } else if (isFunction(module)) {
 4529            runBlocks.push(providerInjector.invoke(module));
 4530        } else if (isArray(module)) {
 4531            runBlocks.push(providerInjector.invoke(module));
 4532        } else {
 4533          assertArgFn(module, 'module');
 4534        }
 4535      } catch (e) {
 4536        if (isArray(module)) {
 4537          module = module[module.length - 1];
 4538        }
 4539        if (e.message && e.stack && e.stack.indexOf(e.message) == -1) {
 4540          // Safari & FF's stack traces don't contain error.message content
 4541          // unlike those of Chrome and IE
 4542          // So if stack doesn't contain message, we create a new string that contains both.
 4543          // Since error.stack is read-only in Safari, I'm overriding e and not e.stack here.
 4544          /* jshint -W022 */
 4545          e = e.message + '\n' + e.stack;
 4546        }
 4547        throw $injectorMinErr('modulerr', "Failed to instantiate module {0} due to:\n{1}",
 4548                  module, e.stack || e.message || e);
 4549      }
 4550    });
 4551    return runBlocks;
 4552  }
 4553
 4554  ////////////////////////////////////
 4555  // internal Injector
 4556  ////////////////////////////////////
 4557
 4558  function createInternalInjector(cache, factory) {
 4559
 4560    function getService(serviceName, caller) {
 4561      if (cache.hasOwnProperty(serviceName)) {
 4562        if (cache[serviceName] === INSTANTIATING) {
 4563          throw $injectorMinErr('cdep', 'Circular dependency found: {0}',
 4564                    serviceName + ' <- ' + path.join(' <- '));
 4565        }
 4566        return cache[serviceName];
 4567      } else {
 4568        try {
 4569          path.unshift(serviceName);
 4570          cache[serviceName] = INSTANTIATING;
 4571          return cache[serviceName] = factory(serviceName, caller);
 4572        } catch (err) {
 4573          if (cache[serviceName] === INSTANTIATING) {
 4574            delete cache[serviceName];
 4575          }
 4576          throw err;
 4577        } finally {
 4578          path.shift();
 4579        }
 4580      }
 4581    }
 4582
 4583
 4584    function injectionArgs(fn, locals, serviceName) {
 4585      var args = [],
 4586          $inject = createInjector.$$annotate(fn, strictDi, serviceName);
 4587
 4588      for (var i = 0, length = $inject.length; i < length; i++) {
 4589        var key = $inject[i];
 4590        if (typeof key !== 'string') {
 4591          throw $injectorMinErr('itkn',
 4592                  'Incorrect injection token! Expected service name as string, got {0}', key);
 4593        }
 4594        args.push(locals && locals.hasOwnProperty(key) ? locals[key] :
 4595                                                         getService(key, serviceName));
 4596      }
 4597      return args;
 4598    }
 4599
 4600    function isClass(func) {
 4601      // IE 9-11 do not support classes and IE9 leaks with the code below.
 4602      if (msie <= 11) {
 4603        return false;
 4604      }
 4605      // Workaround for MS Edge.
 4606      // Check https://connect.microsoft.com/IE/Feedback/Details/2211653
 4607      return typeof func === 'function'
 4608        && /^(?:class\s|constructor\()/.test(Function.prototype.toString.call(func));
 4609    }
 4610
 4611    function invoke(fn, self, locals, serviceName) {
 4612      if (typeof locals === 'string') {
 4613        serviceName = locals;
 4614        locals = null;
 4615      }
 4616
 4617      var args = injectionArgs(fn, locals, serviceName);
 4618      if (isArray(fn)) {
 4619        fn = fn[fn.length - 1];
 4620      }
 4621
 4622      if (!isClass(fn)) {
 4623        // http://jsperf.com/angularjs-invoke-apply-vs-switch
 4624        // #5388
 4625        return fn.apply(self, args);
 4626      } else {
 4627        args.unshift(null);
 4628        return new (Function.prototype.bind.apply(fn, args))();
 4629      }
 4630    }
 4631
 4632
 4633    function instantiate(Type, locals, serviceName) {
 4634      // Check if Type is annotated and use just the given function at n-1 as parameter
 4635      // e.g. someModule.factory('greeter', ['$window', function(renamed$window) {}]);
 4636      var ctor = (isArray(Type) ? Type[Type.length - 1] : Type);
 4637      var args = injectionArgs(Type, locals, serviceName);
 4638      // Empty object at position 0 is ignored for invocation with `new`, but required.
 4639      args.unshift(null);
 4640      return new (Function.prototype.bind.apply(ctor, args))();
 4641    }
 4642
 4643
 4644    return {
 4645      invoke: invoke,
 4646      instantiate: instantiate,
 4647      get: getService,
 4648      annotate: createInjector.$$annotate,
 4649      has: function(name) {
 4650        return providerCache.hasOwnProperty(name + providerSuffix) || cache.hasOwnProperty(name);
 4651      }
 4652    };
 4653  }
 4654}
 4655
 4656createInjector.$$annotate = annotate;
 4657
 4658/**
 4659 * @ngdoc provider
 4660 * @name $anchorScrollProvider
 4661 *
 4662 * @description
 4663 * Use `$anchorScrollProvider` to disable automatic scrolling whenever
 4664 * {@link ng.$location#hash $location.hash()} changes.
 4665 */
 4666function $AnchorScrollProvider() {
 4667
 4668  var autoScrollingEnabled = true;
 4669
 4670  /**
 4671   * @ngdoc method
 4672   * @name $anchorScrollProvider#disableAutoScrolling
 4673   *
 4674   * @description
 4675   * By default, {@link ng.$anchorScroll $anchorScroll()} will automatically detect changes to
 4676   * {@link ng.$location#hash $location.hash()} and scroll to the element matching the new hash.<br />
 4677   * Use this method to disable automatic scrolling.
 4678   *
 4679   * If automatic scrolling is disabled, one must explicitly call
 4680   * {@link ng.$anchorScroll $anchorScroll()} in order to scroll to the element related to the
 4681   * current hash.
 4682   */
 4683  this.disableAutoScrolling = function() {
 4684    autoScrollingEnabled = false;
 4685  };
 4686
 4687  /**
 4688   * @ngdoc service
 4689   * @name $anchorScroll
 4690   * @kind function
 4691   * @requires $window
 4692   * @requires $location
 4693   * @requires $rootScope
 4694   *
 4695   * @description
 4696   * When called, it scrolls to the element related to the specified `hash` or (if omitted) to the
 4697   * current value of {@link ng.$location#hash $location.hash()}, according to the rules specified
 4698   * in the
 4699   * [HTML5 spec](http://www.w3.org/html/wg/drafts/html/master/browsers.html#the-indicated-part-of-the-document).
 4700   *
 4701   * It also watches the {@link ng.$location#hash $location.hash()} and automatically scrolls to
 4702   * match any anchor whenever it changes. This can be disabled by calling
 4703   * {@link ng.$anchorScrollProvider#disableAutoScrolling $anchorScrollProvider.disableAutoScrolling()}.
 4704   *
 4705   * Additionally, you can use its {@link ng.$anchorScroll#yOffset yOffset} property to specify a
 4706   * vertical scroll-offset (either fixed or dynamic).
 4707   *
 4708   * @param {string=} hash The hash specifying the element to scroll to. If omitted, the value of
 4709   *                       {@link ng.$location#hash $location.hash()} will be used.
 4710   *
 4711   * @property {(number|function|jqLite)} yOffset
 4712   * If set, specifies a vertical scroll-offset. This is often useful when there are fixed
 4713   * positioned elements at the top of the page, such as navbars, headers etc.
 4714   *
 4715   * `yOffset` can be specified in various ways:
 4716   * - **number**: A fixed number of pixels to be used as offset.<br /><br />
 4717   * - **function**: A getter function called everytime `$anchorScroll()` is executed. Must return
 4718   *   a number representing the offset (in pixels).<br /><br />
 4719   * - **jqLite**: A jqLite/jQuery element to be used for specifying the offset. The distance from
 4720   *   the top of the page to the element's bottom will be used as offset.<br />
 4721   *   **Note**: The element will be taken into account only as long as its `position` is set to
 4722   *   `fixed`. This option is useful, when dealing with responsive navbars/headers that adjust
 4723   *   their height and/or positioning according to the viewport's size.
 4724   *
 4725   * <br />
 4726   * <div class="alert alert-warning">
 4727   * In order for `yOffset` to work properly, scrolling should take place on the document's root and
 4728   * not some child element.
 4729   * </div>
 4730   *
 4731   * @example
 4732     <example module="anchorScrollExample">
 4733       <file name="index.html">
 4734         <div id="scrollArea" ng-controller="ScrollController">
 4735           <a ng-click="gotoBottom()">Go to bottom</a>
 4736           <a id="bottom"></a> You're at the bottom!
 4737         </div>
 4738       </file>
 4739       <file name="script.js">
 4740         angular.module('anchorScrollExample', [])
 4741           .controller('ScrollController', ['$scope', '$location', '$anchorScroll',
 4742             function ($scope, $location, $anchorScroll) {
 4743               $scope.gotoBottom = function() {
 4744                 // set the location.hash to the id of
 4745                 // the element you wish to scroll to.
 4746                 $location.hash('bottom');
 4747
 4748                 // call $anchorScroll()
 4749                 $anchorScroll();
 4750               };
 4751             }]);
 4752       </file>
 4753       <file name="style.css">
 4754         #scrollArea {
 4755           height: 280px;
 4756           overflow: auto;
 4757         }
 4758
 4759         #bottom {
 4760           display: block;
 4761           margin-top: 2000px;
 4762         }
 4763       </file>
 4764     </example>
 4765   *
 4766   * <hr />
 4767   * The example below illustrates the use of a vertical scroll-offset (specified as a fixed value).
 4768   * See {@link ng.$anchorScroll#yOffset $anchorScroll.yOffset} for more details.
 4769   *
 4770   * @example
 4771     <example module="anchorScrollOffsetExample">
 4772       <file name="index.html">
 4773         <div class="fixed-header" ng-controller="headerCtrl">
 4774           <a href="" ng-click="gotoAnchor(x)" ng-repeat="x in [1,2,3,4,5]">
 4775             Go to anchor {{x}}
 4776           </a>
 4777         </div>
 4778         <div id="anchor{{x}}" class="anchor" ng-repeat="x in [1,2,3,4,5]">
 4779           Anchor {{x}} of 5
 4780         </div>
 4781       </file>
 4782       <file name="script.js">
 4783         angular.module('anchorScrollOffsetExample', [])
 4784           .run(['$anchorScroll', function($anchorScroll) {
 4785             $anchorScroll.yOffset = 50;   // always scroll by 50 extra pixels
 4786           }])
 4787           .controller('headerCtrl', ['$anchorScroll', '$location', '$scope',
 4788             function ($anchorScroll, $location, $scope) {
 4789               $scope.gotoAnchor = function(x) {
 4790                 var newHash = 'anchor' + x;
 4791                 if ($location.hash() !== newHash) {
 4792                   // set the $location.hash to `newHash` and
 4793                   // $anchorScroll will automatically scroll to it
 4794                   $location.hash('anchor' + x);
 4795                 } else {
 4796                   // call $anchorScroll() explicitly,
 4797                   // since $location.hash hasn't changed
 4798                   $anchorScroll();
 4799                 }
 4800               };
 4801             }
 4802           ]);
 4803       </file>
 4804       <file name="style.css">
 4805         body {
 4806           padding-top: 50px;
 4807         }
 4808
 4809         .anchor {
 4810           border: 2px dashed DarkOrchid;
 4811           padding: 10px 10px 200px 10px;
 4812         }
 4813
 4814         .fixed-header {
 4815           background-color: rgba(0, 0, 0, 0.2);
 4816           height: 50px;
 4817           position: fixed;
 4818           top: 0; left: 0; right: 0;
 4819         }
 4820
 4821         .fixed-header > a {
 4822           display: inline-block;
 4823           margin: 5px 15px;
 4824         }
 4825       </file>
 4826     </example>
 4827   */
 4828  this.$get = ['$window', '$location', '$rootScope', function($window, $location, $rootScope) {
 4829    var document = $window.document;
 4830
 4831    // Helper function to get first anchor from a NodeList
 4832    // (using `Array#some()` instead of `angular#forEach()` since it's more performant
 4833    //  and working in all supported browsers.)
 4834    function getFirstAnchor(list) {
 4835      var result = null;
 4836      Array.prototype.some.call(list, function(element) {
 4837        if (nodeName_(element) === 'a') {
 4838          result = element;
 4839          return true;
 4840        }
 4841      });
 4842      return result;
 4843    }
 4844
 4845    function getYOffset() {
 4846
 4847      var offset = scroll.yOffset;
 4848
 4849      if (isFunction(offset)) {
 4850        offset = offset();
 4851      } else if (isElement(offset)) {
 4852        var elem = offset[0];
 4853        var style = $window.getComputedStyle(elem);
 4854        if (style.position !== 'fixed') {
 4855          offset = 0;
 4856        } else {
 4857          offset = elem.getBoundingClientRect().bottom;
 4858        }
 4859      } else if (!isNumber(offset)) {
 4860        offset = 0;
 4861      }
 4862
 4863      return offset;
 4864    }
 4865
 4866    function scrollTo(elem) {
 4867      if (elem) {
 4868        elem.scrollIntoView();
 4869
 4870        var offset = getYOffset();
 4871
 4872        if (offset) {
 4873          // `offset` is the number of pixels we should scroll UP in order to align `elem` properly.
 4874          // This is true ONLY if the call to `elem.scrollIntoView()` initially aligns `elem` at the
 4875          // top of the viewport.
 4876          //
 4877          // IF the number of pixels from the top of `elem` to the end of the page's content is less
 4878          // than the height of the viewport, then `elem.scrollIntoView()` will align the `elem` some
 4879          // way down the page.
 4880          //
 4881          // This is often the case for elements near the bottom of the page.
 4882          //
 4883          // In such cases we do not need to scroll the whole `offset` up, just the difference between
 4884          // the top of the element and the offset, which is enough to align the top of `elem` at the
 4885          // desired position.
 4886          var elemTop = elem.getBoundingClientRect().top;
 4887          $window.scrollBy(0, elemTop - offset);
 4888        }
 4889      } else {
 4890        $window.scrollTo(0, 0);
 4891      }
 4892    }
 4893
 4894    function scroll(hash) {
 4895      hash = isString(hash) ? hash : $location.hash();
 4896      var elm;
 4897
 4898      // empty hash, scroll to the top of the page
 4899      if (!hash) scrollTo(null);
 4900
 4901      // element with given id
 4902      else if ((elm = document.getElementById(hash))) scrollTo(elm);
 4903
 4904      // first anchor with given name :-D
 4905      else if ((elm = getFirstAnchor(document.getElementsByName(hash)))) scrollTo(elm);
 4906
 4907      // no element and hash == 'top', scroll to the top of the page
 4908      else if (hash === 'top') scrollTo(null);
 4909    }
 4910
 4911    // does not scroll when user clicks on anchor link that is currently on
 4912    // (no url change, no $location.hash() change), browser native does scroll
 4913    if (autoScrollingEnabled) {
 4914      $rootScope.$watch(function autoScrollWatch() {return $location.hash();},
 4915        function autoScrollWatchAction(newVal, oldVal) {
 4916          // skip the initial scroll if $location.hash is empty
 4917          if (newVal === oldVal && newVal === '') return;
 4918
 4919          jqLiteDocumentLoaded(function() {
 4920            $rootScope.$evalAsync(scroll);
 4921          });
 4922        });
 4923    }
 4924
 4925    return scroll;
 4926  }];
 4927}
 4928
 4929var $animateMinErr = minErr('$animate');
 4930var ELEMENT_NODE = 1;
 4931var NG_ANIMATE_CLASSNAME = 'ng-animate';
 4932
 4933function mergeClasses(a,b) {
 4934  if (!a && !b) return '';
 4935  if (!a) return b;
 4936  if (!b) return a;
 4937  if (isArray(a)) a = a.join(' ');
 4938  if (isArray(b)) b = b.join(' ');
 4939  return a + ' ' + b;
 4940}
 4941
 4942function extractElementNode(element) {
 4943  for (var i = 0; i < element.length; i++) {
 4944    var elm = element[i];
 4945    if (elm.nodeType === ELEMENT_NODE) {
 4946      return elm;
 4947    }
 4948  }
 4949}
 4950
 4951function splitClasses(classes) {
 4952  if (isString(classes)) {
 4953    classes = classes.split(' ');
 4954  }
 4955
 4956  // Use createMap() to prevent class assumptions involving property names in
 4957  // Object.prototype
 4958  var obj = createMap();
 4959  forEach(classes, function(klass) {
 4960    // sometimes the split leaves empty string values
 4961    // incase extra spaces were applied to the options
 4962    if (klass.length) {
 4963      obj[klass] = true;
 4964    }
 4965  });
 4966  return obj;
 4967}
 4968
 4969// if any other type of options value besides an Object value is
 4970// passed into the $animate.method() animation then this helper code
 4971// will be run which will ignore it. While this patch is not the
 4972// greatest solution to this, a lot of existing plugins depend on
 4973// $animate to either call the callback (< 1.2) or return a promise
 4974// that can be changed. This helper function ensures that the options
 4975// are wiped clean incase a callback function is provided.
 4976function prepareAnimateOptions(options) {
 4977  return isObject(options)
 4978      ? options
 4979      : {};
 4980}
 4981
 4982var $$CoreAnimateJsProvider = function() {
 4983  this.$get = noop;
 4984};
 4985
 4986// this is prefixed with Core since it conflicts with
 4987// the animateQueueProvider defined in ngAnimate/animateQueue.js
 4988var $$CoreAnimateQueueProvider = function() {
 4989  var postDigestQueue = new HashMap();
 4990  var postDigestElements = [];
 4991
 4992  this.$get = ['$$AnimateRunner', '$rootScope',
 4993       function($$AnimateRunner,   $rootScope) {
 4994    return {
 4995      enabled: noop,
 4996      on: noop,
 4997      off: noop,
 4998      pin: noop,
 4999
 5000      push: function(element, event, options, domOperation) {
 5001        domOperation        && domOperation();
 5002
 5003        options = options || {};
 5004        options.from        && element.css(options.from);
 5005        options.to          && element.css(options.to);
 5006
 5007        if (options.addClass || options.removeClass) {
 5008          addRemoveClassesPostDigest(element, options.addClass, options.removeClass);
 5009        }
 5010
 5011        var runner = new $$AnimateRunner(); // jshint ignore:line
 5012
 5013        // since there are no animations to run the runner needs to be
 5014        // notified that the animation call is complete.
 5015        runner.complete();
 5016        return runner;
 5017      }
 5018    };
 5019
 5020
 5021    function updateData(data, classes, value) {
 5022      var changed = false;
 5023      if (classes) {
 5024        classes = isString(classes) ? classes.split(' ') :
 5025                  isArray(classes) ? classes : [];
 5026        forEach(classes, function(className) {
 5027          if (className) {
 5028            changed = true;
 5029            data[className] = value;
 5030          }
 5031        });
 5032      }
 5033      return changed;
 5034    }
 5035
 5036    function handleCSSClassChanges() {
 5037      forEach(postDigestElements, function(element) {
 5038        var data = postDigestQueue.get(element);
 5039        if (data) {
 5040          var existing = splitClasses(element.attr('class'));
 5041          var toAdd = '';
 5042          var toRemove = '';
 5043          forEach(data, function(status, className) {
 5044            var hasClass = !!existing[className];
 5045            if (status !== hasClass) {
 5046              if (status) {
 5047                toAdd += (toAdd.length ? ' ' : '') + className;
 5048              } else {
 5049                toRemove += (toRemove.length ? ' ' : '') + className;
 5050              }
 5051            }
 5052          });
 5053
 5054          forEach(element, function(elm) {
 5055            toAdd    && jqLiteAddClass(elm, toAdd);
 5056            toRemove && jqLiteRemoveClass(elm, toRemove);
 5057          });
 5058          postDigestQueue.remove(element);
 5059        }
 5060      });
 5061      postDigestElements.length = 0;
 5062    }
 5063
 5064
 5065    function addRemoveClassesPostDigest(element, add, remove) {
 5066      var data = postDigestQueue.get(element) || {};
 5067
 5068      var classesAdded = updateData(data, add, true);
 5069      var classesRemoved = updateData(data, remove, false);
 5070
 5071      if (classesAdded || classesRemoved) {
 5072
 5073        postDigestQueue.put(element, data);
 5074        postDigestElements.push(element);
 5075
 5076        if (postDigestElements.length === 1) {
 5077          $rootScope.$$postDigest(handleCSSClassChanges);
 5078        }
 5079      }
 5080    }
 5081  }];
 5082};
 5083
 5084/**
 5085 * @ngdoc provider
 5086 * @name $animateProvider
 5087 *
 5088 * @description
 5089 * Default implementation of $animate that doesn't perform any animations, instead just
 5090 * synchronously performs DOM updates and resolves the returned runner promise.
 5091 *
 5092 * In order to enable animations the `ngAnimate` module has to be loaded.
 5093 *
 5094 * To see the functional implementation check out `src/ngAnimate/animate.js`.
 5095 */
 5096var $AnimateProvider = ['$provide', function($provide) {
 5097  var provider = this;
 5098
 5099  this.$$registeredAnimations = Object.create(null);
 5100
 5101   /**
 5102   * @ngdoc method
 5103   * @name $animateProvider#register
 5104   *
 5105   * @description
 5106   * Registers a new injectable animation factory function. The factory function produces the
 5107   * animation object which contains callback functions for each event that is expected to be
 5108   * animated.
 5109   *
 5110   *   * `eventFn`: `function(element, ... , doneFunction, options)`
 5111   *   The element to animate, the `doneFunction` and the options fed into the animation. Depending
 5112   *   on the type of animation additional arguments will be injected into the animation function. The
 5113   *   list below explains the function signatures for the different animation methods:
 5114   *
 5115   *   - setClass: function(element, addedClasses, removedClasses, doneFunction, options)
 5116   *   - addClass: function(element, addedClasses, doneFunction, options)
 5117   *   - removeClass: function(element, removedClasses, doneFunction, options)
 5118   *   - enter, leave, move: function(element, doneFunction, options)
 5119   *   - animate: function(element, fromStyles, toStyles, doneFunction, options)
 5120   *
 5121   *   Make sure to trigger the `doneFunction` once the animation is fully complete.
 5122   *
 5123   * ```js
 5124   *   return {
 5125   *     //enter, leave, move signature
 5126   *     eventFn : function(element, done, options) {
 5127   *       //code to run the animation
 5128   *       //once complete, then run done()
 5129   *       return function endFunction(wasCancelled) {
 5130   *         //code to cancel the animation
 5131   *       }
 5132   *     }
 5133   *   }
 5134   * ```
 5135   *
 5136   * @param {string} name The name of the animation (this is what the class-based CSS value will be compared to).
 5137   * @param {Function} factory The factory function that will be executed to return the animation
 5138   *                           object.
 5139   */
 5140  this.register = function(name, factory) {
 5141    if (name && name.charAt(0) !== '.') {
 5142      throw $animateMinErr('notcsel', "Expecting class selector starting with '.' got '{0}'.", name);
 5143    }
 5144
 5145    var key = name + '-animation';
 5146    provider.$$registeredAnimations[name.substr(1)] = key;
 5147    $provide.factory(key, factory);
 5148  };
 5149
 5150  /**
 5151   * @ngdoc method
 5152   * @name $animateProvider#classNameFilter
 5153   *
 5154   * @description
 5155   * Sets and/or returns the CSS class regular expression that is checked when performing
 5156   * an animation. Upon bootstrap the classNameFilter value is not set at all and will
 5157   * therefore enable $animate to attempt to perform an animation on any element that is triggered.
 5158   * When setting the `classNameFilter` value, animations will only be performed on elements
 5159   * that successfully match the filter expression. This in turn can boost performance
 5160   * for low-powered devices as well as applications containing a lot of structural operations.
 5161   * @param {RegExp=} expression The className expression which will be checked against all animations
 5162   * @return {RegExp} The current CSS className expression value. If null then there is no expression value
 5163   */
 5164  this.classNameFilter = function(expression) {
 5165    if (arguments.length === 1) {
 5166      this.$$classNameFilter = (expression instanceof RegExp) ? expression : null;
 5167      if (this.$$classNameFilter) {
 5168        var reservedRegex = new RegExp("(\\s+|\\/)" + NG_ANIMATE_CLASSNAME + "(\\s+|\\/)");
 5169        if (reservedRegex.test(this.$$classNameFilter.toString())) {
 5170          throw $animateMinErr('nongcls','$animateProvider.classNameFilter(regex) prohibits accepting a regex value which matches/contains the "{0}" CSS class.', NG_ANIMATE_CLASSNAME);
 5171
 5172        }
 5173      }
 5174    }
 5175    return this.$$classNameFilter;
 5176  };
 5177
 5178  this.$get = ['$$animateQueue', function($$animateQueue) {
 5179    function domInsert(element, parentElement, afterElement) {
 5180      // if for some reason the previous element was removed
 5181      // from the dom sometime before this code runs then let's
 5182      // just stick to using the parent element as the anchor
 5183      if (afterElement) {
 5184        var afterNode = extractElementNode(afterElement);
 5185        if (afterNode && !afterNode.parentNode && !afterNode.previousElementSibling) {
 5186          afterElement = null;
 5187        }
 5188      }
 5189      afterElement ? afterElement.after(element) : parentElement.prepend(element);
 5190    }
 5191
 5192    /**
 5193     * @ngdoc service
 5194     * @name $animate
 5195     * @description The $animate service exposes a series of DOM utility methods that provide support
 5196     * for animation hooks. The default behavior is the application of DOM operations, however,
 5197     * when an animation is detected (and animations are enabled), $animate will do the heavy lifting
 5198     * to ensure that animation runs with the triggered DOM operation.
 5199     *
 5200     * By default $animate doesn't trigger any animations. This is because the `ngAnimate` module isn't
 5201     * included and only when it is active then the animation hooks that `$animate` triggers will be
 5202     * functional. Once active then all structural `ng-` directives will trigger animations as they perform
 5203     * their DOM-related operations (enter, leave and move). Other directives such as `ngClass`,
 5204     * `ngShow`, `ngHide` and `ngMessages` also provide support for animations.
 5205     *
 5206     * It is recommended that the`$animate` service is always used when executing DOM-related procedures within directives.
 5207     *
 5208     * To learn more about enabling animation support, click here to visit the
 5209     * {@link ngAnimate ngAnimate module page}.
 5210     */
 5211    return {
 5212      // we don't call it directly since non-existant arguments may
 5213      // be interpreted as null within the sub enabled function
 5214
 5215      /**
 5216       *
 5217       * @ngdoc method
 5218       * @name $animate#on
 5219       * @kind function
 5220       * @description Sets up an event listener to fire whenever the animation event (enter, leave, move, etc...)
 5221       *    has fired on the given element or among any of its children. Once the listener is fired, the provided callback
 5222       *    is fired with the following params:
 5223       *
 5224       * ```js
 5225       * $animate.on('enter', container,
 5226       *    function callback(element, phase) {
 5227       *      // cool we detected an enter animation within the container
 5228       *    }
 5229       * );
 5230       * ```
 5231       *
 5232       * @param {string} event the animation event that will be captured (e.g. enter, leave, move, addClass, removeClass, etc...)
 5233       * @param {DOMElement} container the container element that will capture each of the animation events that are fired on itself
 5234       *     as well as among its children
 5235       * @param {Function} callback the callback function that will be fired when the listener is triggered
 5236       *
 5237       * The arguments present in the callback function are:
 5238       * * `element` - The captured DOM element that the animation was fired on.
 5239       * * `phase` - The phase of the animation. The two possible phases are **start** (when the animation starts) and **close** (when it ends).
 5240       */
 5241      on: $$animateQueue.on,
 5242
 5243      /**
 5244       *
 5245       * @ngdoc method
 5246       * @name $animate#off
 5247       * @kind function
 5248       * @description Deregisters an event listener based on the event which has been associated with the provided element. This method
 5249       * can be used in three different ways depending on the arguments:
 5250       *
 5251       * ```js
 5252       * // remove all the animation event listeners listening for `enter`
 5253       * $animate.off('enter');
 5254       *
 5255       * // remove all the animation event listeners listening for `enter` on the given element and its children
 5256       * $animate.off('enter', container);
 5257       *
 5258       * // remove the event listener function provided by `callback` that is set
 5259       * // to listen for `enter` on the given `container` as well as its children
 5260       * $animate.off('enter', container, callback);
 5261       * ```
 5262       *
 5263       * @param {string} event the animation event (e.g. enter, leave, move, addClass, removeClass, etc...)
 5264       * @param {DOMElement=} container the container element the event listener was placed on
 5265       * @param {Function=} callback the callback function that was registered as the listener
 5266       */
 5267      off: $$animateQueue.off,
 5268
 5269      /**
 5270       * @ngdoc method
 5271       * @name $animate#pin
 5272       * @kind function
 5273       * @description Associates the provided element with a host parent element to allow the element to be animated even if it exists
 5274       *    outside of the DOM structure of the Angular application. By doing so, any animation triggered via `$animate` can be issued on the
 5275       *    element despite being outside the realm of the application or within another application. Say for example if the application
 5276       *    was bootstrapped on an element that is somewhere inside of the `<body>` tag, but we wanted to allow for an element to be situated
 5277       *    as a direct child of `document.body`, then this can be achieved by pinning the element via `$animate.pin(element)`. Keep in mind
 5278       *    that calling `$animate.pin(element, parentElement)` will not actually insert into the DOM anywhere; it will just create the association.
 5279       *
 5280       *    Note that this feature is only active when the `ngAnimate` module is used.
 5281       *
 5282       * @param {DOMElement} element the external element that will be pinned
 5283       * @param {DOMElement} parentElement the host parent element that will be associated with the external element
 5284       */
 5285      pin: $$animateQueue.pin,
 5286
 5287      /**
 5288       *
 5289       * @ngdoc method
 5290       * @name $animate#enabled
 5291       * @kind function
 5292       * @description Used to get and set whether animations are enabled or not on the entire application or on an element and its children. This
 5293       * function can be called in four ways:
 5294       *
 5295       * ```js
 5296       * // returns true or false
 5297       * $animate.enabled();
 5298       *
 5299       * // changes the enabled state for all animations
 5300       * $animate.enabled(false);
 5301       * $animate.enabled(true);
 5302       *
 5303       * // returns true or false if animations are enabled for an element
 5304       * $animate.enabled(element);
 5305       *
 5306       * // changes the enabled state for an element and its children
 5307       * $animate.enabled(element, true);
 5308       * $animate.enabled(element, false);
 5309       * ```
 5310       *
 5311       * @param {DOMElement=} element the element that will be considered for checking/setting the enabled state
 5312       * @param {boolean=} enabled whether or not the animations will be enabled for the element
 5313       *
 5314       * @return {boolean} whether or not animations are enabled
 5315       */
 5316      enabled: $$animateQueue.enabled,
 5317
 5318      /**
 5319       * @ngdoc method
 5320       * @name $animate#cancel
 5321       * @kind function
 5322       * @description Cancels the provided animation.
 5323       *
 5324       * @param {Promise} animationPromise The animation promise that is returned when an animation is started.
 5325       */
 5326      cancel: function(runner) {
 5327        runner.end && runner.end();
 5328      },
 5329
 5330      /**
 5331       *
 5332       * @ngdoc method
 5333       * @name $animate#enter
 5334       * @kind function
 5335       * @description Inserts the element into the DOM either after the `after` element (if provided) or
 5336       *   as the first child within the `parent` element and then triggers an animation.
 5337       *   A promise is returned that will be resolved during the next digest once the animation
 5338       *   has completed.
 5339       *
 5340       * @param {DOMElement} element the element which will be inserted into the DOM
 5341       * @param {DOMElement} parent the parent element which will append the element as
 5342       *   a child (so long as the after element is not present)
 5343       * @param {DOMElement=} after the sibling element after which the element will be appended
 5344       * @param {object=} options an optional collection of options/styles that will be applied to the element
 5345       *
 5346       * @return {Promise} the animation callback promise
 5347       */
 5348      enter: function(element, parent, after, options) {
 5349        parent = parent && jqLite(parent);
 5350        after = after && jqLite(after);
 5351        parent = parent || after.parent();
 5352        domInsert(element, parent, after);
 5353        return $$animateQueue.push(element, 'enter', prepareAnimateOptions(options));
 5354      },
 5355
 5356      /**
 5357       *
 5358       * @ngdoc method
 5359       * @name $animate#move
 5360       * @kind function
 5361       * @description Inserts (moves) the element into its new position in the DOM either after
 5362       *   the `after` element (if provided) or as the first child within the `parent` element
 5363       *   and then triggers an animation. A promise is returned that will be resolved
 5364       *   during the next digest once the animation has completed.
 5365       *
 5366       * @param {DOMElement} element the element which will be moved into the new DOM position
 5367       * @param {DOMElement} parent the parent element which will append the element as
 5368       *   a child (so long as the after element is not present)
 5369       * @param {DOMElement=} after the sibling element after which the element will be appended
 5370       * @param {object=} options an optional collection of options/styles that will be applied to the element
 5371       *
 5372       * @return {Promise} the animation callback promise
 5373       */
 5374      move: function(element, parent, after, options) {
 5375        parent = parent && jqLite(parent);
 5376        after = after && jqLite(after);
 5377        parent = parent || after.parent();
 5378        domInsert(element, parent, after);
 5379        return $$animateQueue.push(element, 'move', prepareAnimateOptions(options));
 5380      },
 5381
 5382      /**
 5383       * @ngdoc method
 5384       * @name $animate#leave
 5385       * @kind function
 5386       * @description Triggers an animation and then removes the element from the DOM.
 5387       * When the function is called a promise is returned that will be resolved during the next
 5388       * digest once the animation has completed.
 5389       *
 5390       * @param {DOMElement} element the element which will be removed from the DOM
 5391       * @param {object=} options an optional collection of options/styles that will be applied to the element
 5392       *
 5393       * @return {Promise} the animation callback promise
 5394       */
 5395      leave: function(element, options) {
 5396        return $$animateQueue.push(element, 'leave', prepareAnimateOptions(options), function() {
 5397          element.remove();
 5398        });
 5399      },
 5400
 5401      /**
 5402       * @ngdoc method
 5403       * @name $animate#addClass
 5404       * @kind function
 5405       *
 5406       * @description Triggers an addClass animation surrounding the addition of the provided CSS class(es). Upon
 5407       *   execution, the addClass operation will only be handled after the next digest and it will not trigger an
 5408       *   animation if element already contains the CSS class or if the class is removed at a later step.
 5409       *   Note that class-based animations are treated differently compared to structural animations
 5410       *   (like enter, move and leave) since the CSS classes may be added/removed at different points
 5411       *   depending if CSS or JavaScript animations are used.
 5412       *
 5413       * @param {DOMElement} element the element which the CSS classes will be applied to
 5414       * @param {string} className the CSS class(es) that will be added (multiple classes are separated via spaces)
 5415       * @param {object=} options an optional collection of options/styles that will be applied to the element
 5416       *
 5417       * @return {Promise} the animation callback promise
 5418       */
 5419      addClass: function(element, className, options) {
 5420        options = prepareAnimateOptions(options);
 5421        options.addClass = mergeClasses(options.addclass, className);
 5422        return $$animateQueue.push(element, 'addClass', options);
 5423      },
 5424
 5425      /**
 5426       * @ngdoc method
 5427       * @name $animate#removeClass
 5428       * @kind function
 5429       *
 5430       * @description Triggers a removeClass animation surrounding the removal of the provided CSS class(es). Upon
 5431       *   execution, the removeClass operation will only be handled after the next digest and it will not trigger an
 5432       *   animation if element does not contain the CSS class or if the class is added at a later step.
 5433       *   Note that class-based animations are treated differently compared to structural animations
 5434       *   (like enter, move and leave) since the CSS classes may be added/removed at different points
 5435       *   depending if CSS or JavaScript animations are used.
 5436       *
 5437       * @param {DOMElement} element the element which the CSS classes will be applied to
 5438       * @param {string} className the CSS class(es) that will be removed (multiple classes are separated via spaces)
 5439       * @param {object=} options an optional collection of options/styles that will be applied to the element
 5440       *
 5441       * @return {Promise} the animation callback promise
 5442       */
 5443      removeClass: function(element, className, options) {
 5444        options = prepareAnimateOptions(options);
 5445        options.removeClass = mergeClasses(options.removeClass, className);
 5446        return $$animateQueue.push(element, 'removeClass', options);
 5447      },
 5448
 5449      /**
 5450       * @ngdoc method
 5451       * @name $animate#setClass
 5452       * @kind function
 5453       *
 5454       * @description Performs both the addition and removal of a CSS classes on an element and (during the process)
 5455       *    triggers an animation surrounding the class addition/removal. Much like `$animate.addClass` and
 5456       *    `$animate.removeClass`, `setClass` will only evaluate the classes being added/removed once a digest has
 5457       *    passed. Note that class-based animations are treated differently compared to structural animations
 5458       *    (like enter, move and leave) since the CSS classes may be added/removed at different points
 5459       *    depending if CSS or JavaScript animations are used.
 5460       *
 5461       * @param {DOMElement} element the element which the CSS classes will be applied to
 5462       * @param {string} add the CSS class(es) that will be added (multiple classes are separated via spaces)
 5463       * @param {string} remove the CSS class(es) that will be removed (multiple classes are separated via spaces)
 5464       * @param {object=} options an optional collection of options/styles that will be applied to the element
 5465       *
 5466       * @return {Promise} the animation callback promise
 5467       */
 5468      setClass: function(element, add, remove, options) {
 5469        options = prepareAnimateOptions(options);
 5470        options.addClass = mergeClasses(options.addClass, add);
 5471        options.removeClass = mergeClasses(options.removeClass, remove);
 5472        return $$animateQueue.push(element, 'setClass', options);
 5473      },
 5474
 5475      /**
 5476       * @ngdoc method
 5477       * @name $animate#animate
 5478       * @kind function
 5479       *
 5480       * @description Performs an inline animation on the element which applies the provided to and from CSS styles to the element.
 5481       * If any detected CSS transition, keyframe or JavaScript matches the provided className value, then the animation will take
 5482       * on the provided styles. For example, if a transition animation is set for the given classNamem, then the provided `from` and
 5483       * `to` styles will be applied alongside the given transition. If the CSS style provided in `from` does not have a corresponding
 5484       * style in `to`, the style in `from` is applied immediately, and no animation is run.
 5485       * If a JavaScript animation is detected then the provided styles will be given in as function parameters into the `animate`
 5486       * method (or as part of the `options` parameter):
 5487       *
 5488       * ```js
 5489       * ngModule.animation('.my-inline-animation', function() {
 5490       *   return {
 5491       *     animate : function(element, from, to, done, options) {
 5492       *       //animation
 5493       *       done();
 5494       *     }
 5495       *   }
 5496       * });
 5497       * ```
 5498       *
 5499       * @param {DOMElement} element the element which the CSS styles will be applied to
 5500       * @param {object} from the from (starting) CSS styles that will be applied to the element and across the animation.
 5501       * @param {object} to the to (destination) CSS styles that will be applied to the element and across the animation.
 5502       * @param {string=} className an optional CSS class that will be applied to the element for the duration of the animation. If
 5503       *    this value is left as empty then a CSS class of `ng-inline-animate` will be applied to the element.
 5504       *    (Note that if no animation is detected then this value will not be applied to the element.)
 5505       * @param {object=} options an optional collection of options/styles that will be applied to the element
 5506       *
 5507       * @return {Promise} the animation callback promise
 5508       */
 5509      animate: function(element, from, to, className, options) {
 5510        options = prepareAnimateOptions(options);
 5511        options.from = options.from ? extend(options.from, from) : from;
 5512        options.to   = options.to   ? extend(options.to, to)     : to;
 5513
 5514        className = className || 'ng-inline-animate';
 5515        options.tempClasses = mergeClasses(options.tempClasses, className);
 5516        return $$animateQueue.push(element, 'animate', options);
 5517      }
 5518    };
 5519  }];
 5520}];
 5521
 5522var $$AnimateAsyncRunFactoryProvider = function() {
 5523  this.$get = ['$$rAF', function($$rAF) {
 5524    var waitQueue = [];
 5525
 5526    function waitForTick(fn) {
 5527      waitQueue.push(fn);
 5528      if (waitQueue.length > 1) return;
 5529      $$rAF(function() {
 5530        for (var i = 0; i < waitQueue.length; i++) {
 5531          waitQueue[i]();
 5532        }
 5533        waitQueue = [];
 5534      });
 5535    }
 5536
 5537    return function() {
 5538      var passed = false;
 5539      waitForTick(function() {
 5540        passed = true;
 5541      });
 5542      return function(callback) {
 5543        passed ? callback() : waitForTick(callback);
 5544      };
 5545    };
 5546  }];
 5547};
 5548
 5549var $$AnimateRunnerFactoryProvider = function() {
 5550  this.$get = ['$q', '$sniffer', '$$animateAsyncRun', '$document', '$timeout',
 5551       function($q,   $sniffer,   $$animateAsyncRun,   $document,   $timeout) {
 5552
 5553    var INITIAL_STATE = 0;
 5554    var DONE_PENDING_STATE = 1;
 5555    var DONE_COMPLETE_STATE = 2;
 5556
 5557    AnimateRunner.chain = function(chain, callback) {
 5558      var index = 0;
 5559
 5560      next();
 5561      function next() {
 5562        if (index === chain.length) {
 5563          callback(true);
 5564          return;
 5565        }
 5566
 5567        chain[index](function(response) {
 5568          if (response === false) {
 5569            callback(false);
 5570            return;
 5571          }
 5572          index++;
 5573          next();
 5574        });
 5575      }
 5576    };
 5577
 5578    AnimateRunner.all = function(runners, callback) {
 5579      var count = 0;
 5580      var status = true;
 5581      forEach(runners, function(runner) {
 5582        runner.done(onProgress);
 5583      });
 5584
 5585      function onProgress(response) {
 5586        status = status && response;
 5587        if (++count === runners.length) {
 5588          callback(status);
 5589        }
 5590      }
 5591    };
 5592
 5593    function AnimateRunner(host) {
 5594      this.setHost(host);
 5595
 5596      var rafTick = $$animateAsyncRun();
 5597      var timeoutTick = function(fn) {
 5598        $timeout(fn, 0, false);
 5599      };
 5600
 5601      this._doneCallbacks = [];
 5602      this._tick = function(fn) {
 5603        var doc = $document[0];
 5604
 5605        // the document may not be ready or attached
 5606        // to the module for some internal tests
 5607        if (doc && doc.hidden) {
 5608          timeoutTick(fn);
 5609        } else {
 5610          rafTick(fn);
 5611        }
 5612      };
 5613      this._state = 0;
 5614    }
 5615
 5616    AnimateRunner.prototype = {
 5617      setHost: function(host) {
 5618        this.host = host || {};
 5619      },
 5620
 5621      done: function(fn) {
 5622        if (this._state === DONE_COMPLETE_STATE) {
 5623          fn();
 5624        } else {
 5625          this._doneCallbacks.push(fn);
 5626        }
 5627      },
 5628
 5629      progress: noop,
 5630
 5631      getPromise: function() {
 5632        if (!this.promise) {
 5633          var self = this;
 5634          this.promise = $q(function(resolve, reject) {
 5635            self.done(function(status) {
 5636              status === false ? reject() : resolve();
 5637            });
 5638          });
 5639        }
 5640        return this.promise;
 5641      },
 5642
 5643      then: function(resolveHandler, rejectHandler) {
 5644        return this.getPromise().then(resolveHandler, rejectHandler);
 5645      },
 5646
 5647      'catch': function(handler) {
 5648        return this.getPromise()['catch'](handler);
 5649      },
 5650
 5651      'finally': function(handler) {
 5652        return this.getPromise()['finally'](handler);
 5653      },
 5654
 5655      pause: function() {
 5656        if (this.host.pause) {
 5657          this.host.pause();
 5658        }
 5659      },
 5660
 5661      resume: function() {
 5662        if (this.host.resume) {
 5663          this.host.resume();
 5664        }
 5665      },
 5666
 5667      end: function() {
 5668        if (this.host.end) {
 5669          this.host.end();
 5670        }
 5671        this._resolve(true);
 5672      },
 5673
 5674      cancel: function() {
 5675        if (this.host.cancel) {
 5676          this.host.cancel();
 5677        }
 5678        this._resolve(false);
 5679      },
 5680
 5681      complete: function(response) {
 5682        var self = this;
 5683        if (self._state === INITIAL_STATE) {
 5684          self._state = DONE_PENDING_STATE;
 5685          self._tick(function() {
 5686            self._resolve(response);
 5687          });
 5688        }
 5689      },
 5690
 5691      _resolve: function(response) {
 5692        if (this._state !== DONE_COMPLETE_STATE) {
 5693          forEach(this._doneCallbacks, function(fn) {
 5694            fn(response);
 5695          });
 5696          this._doneCallbacks.length = 0;
 5697          this._state = DONE_COMPLETE_STATE;
 5698        }
 5699      }
 5700    };
 5701
 5702    return AnimateRunner;
 5703  }];
 5704};
 5705
 5706/**
 5707 * @ngdoc service
 5708 * @name $animateCss
 5709 * @kind object
 5710 *
 5711 * @description
 5712 * This is the core version of `$animateCss`. By default, only when the `ngAnimate` is included,
 5713 * then the `$animateCss` service will actually perform animations.
 5714 *
 5715 * Click here {@link ngAnimate.$animateCss to read the documentation for $animateCss}.
 5716 */
 5717var $CoreAnimateCssProvider = function() {
 5718  this.$get = ['$$rAF', '$q', '$$AnimateRunner', function($$rAF, $q, $$AnimateRunner) {
 5719
 5720    return function(element, initialOptions) {
 5721      // all of the animation functions should create
 5722      // a copy of the options data, however, if a
 5723      // parent service has already created a copy then
 5724      // we should stick to using that
 5725      var options = initialOptions || {};
 5726      if (!options.$$prepared) {
 5727        options = copy(options);
 5728      }
 5729
 5730      // there is no point in applying the styles since
 5731      // there is no animation that goes on at all in
 5732      // this version of $animateCss.
 5733      if (options.cleanupStyles) {
 5734        options.from = options.to = null;
 5735      }
 5736
 5737      if (options.from) {
 5738        element.css(options.from);
 5739        options.from = null;
 5740      }
 5741
 5742      /* jshint newcap: false */
 5743      var closed, runner = new $$AnimateRunner();
 5744      return {
 5745        start: run,
 5746        end: run
 5747      };
 5748
 5749      function run() {
 5750        $$rAF(function() {
 5751          applyAnimationContents();
 5752          if (!closed) {
 5753            runner.complete();
 5754          }
 5755          closed = true;
 5756        });
 5757        return runner;
 5758      }
 5759
 5760      function applyAnimationContents() {
 5761        if (options.addClass) {
 5762          element.addClass(options.addClass);
 5763          options.addClass = null;
 5764        }
 5765        if (options.removeClass) {
 5766          element.removeClass(options.removeClass);
 5767          options.removeClass = null;
 5768        }
 5769        if (options.to) {
 5770          element.css(options.to);
 5771          options.to = null;
 5772        }
 5773      }
 5774    };
 5775  }];
 5776};
 5777
 5778/* global stripHash: true */
 5779
 5780/**
 5781 * ! This is a private undocumented service !
 5782 *
 5783 * @name $browser
 5784 * @requires $log
 5785 * @description
 5786 * This object has two goals:
 5787 *
 5788 * - hide all the global state in the browser caused by the window object
 5789 * - abstract away all the browser specific features and inconsistencies
 5790 *
 5791 * For tests we provide {@link ngMock.$browser mock implementation} of the `$browser`
 5792 * service, which can be used for convenient testing of the application without the interaction with
 5793 * the real browser apis.
 5794 */
 5795/**
 5796 * @param {object} window The global window object.
 5797 * @param {object} document jQuery wrapped document.
 5798 * @param {object} $log window.console or an object with the same interface.
 5799 * @param {object} $sniffer $sniffer service
 5800 */
 5801function Browser(window, document, $log, $sniffer) {
 5802  var self = this,
 5803      location = window.location,
 5804      history = window.history,
 5805      setTimeout = window.setTimeout,
 5806      clearTimeout = window.clearTimeout,
 5807      pendingDeferIds = {};
 5808
 5809  self.isMock = false;
 5810
 5811  var outstandingRequestCount = 0;
 5812  var outstandingRequestCallbacks = [];
 5813
 5814  // TODO(vojta): remove this temporary api
 5815  self.$$completeOutstandingRequest = completeOutstandingRequest;
 5816  self.$$incOutstandingRequestCount = function() { outstandingRequestCount++; };
 5817
 5818  /**
 5819   * Executes the `fn` function(supports currying) and decrements the `outstandingRequestCallbacks`
 5820   * counter. If the counter reaches 0, all the `outstandingRequestCallbacks` are executed.
 5821   */
 5822  function completeOutstandingRequest(fn) {
 5823    try {
 5824      fn.apply(null, sliceArgs(arguments, 1));
 5825    } finally {
 5826      outstandingRequestCount--;
 5827      if (outstandingRequestCount === 0) {
 5828        while (outstandingRequestCallbacks.length) {
 5829          try {
 5830            outstandingRequestCallbacks.pop()();
 5831          } catch (e) {
 5832            $log.error(e);
 5833          }
 5834        }
 5835      }
 5836    }
 5837  }
 5838
 5839  function getHash(url) {
 5840    var index = url.indexOf('#');
 5841    return index === -1 ? '' : url.substr(index);
 5842  }
 5843
 5844  /**
 5845   * @private
 5846   * Note: this method is used only by scenario runner
 5847   * TODO(vojta): prefix this method with $$ ?
 5848   * @param {function()} callback Function that will be called when no outstanding request
 5849   */
 5850  self.notifyWhenNoOutstandingRequests = function(callback) {
 5851    if (outstandingRequestCount === 0) {
 5852      callback();
 5853    } else {
 5854      outstandingRequestCallbacks.push(callback);
 5855    }
 5856  };
 5857
 5858  //////////////////////////////////////////////////////////////
 5859  // URL API
 5860  //////////////////////////////////////////////////////////////
 5861
 5862  var cachedState, lastHistoryState,
 5863      lastBrowserUrl = location.href,
 5864      baseElement = document.find('base'),
 5865      pendingLocation = null,
 5866      getCurrentState = !$sniffer.history ? noop : function getCurrentState() {
 5867        try {
 5868          return history.state;
 5869        } catch (e) {
 5870          // MSIE can reportedly throw when there is no state (UNCONFIRMED).
 5871        }
 5872      };
 5873
 5874  cacheState();
 5875  lastHistoryState = cachedState;
 5876
 5877  /**
 5878   * @name $browser#url
 5879   *
 5880   * @description
 5881   * GETTER:
 5882   * Without any argument, this method just returns current value of location.href.
 5883   *
 5884   * SETTER:
 5885   * With at least one argument, this method sets url to new value.
 5886   * If html5 history api supported, pushState/replaceState is used, otherwise
 5887   * location.href/location.replace is used.
 5888   * Returns its own instance to allow chaining
 5889   *
 5890   * NOTE: this api is intended for use only by the $location service. Please use the
 5891   * {@link ng.$location $location service} to change url.
 5892   *
 5893   * @param {string} url New url (when used as setter)
 5894   * @param {boolean=} replace Should new url replace current history record?
 5895   * @param {object=} state object to use with pushState/replaceState
 5896   */
 5897  self.url = function(url, replace, state) {
 5898    // In modern browsers `history.state` is `null` by default; treating it separately
 5899    // from `undefined` would cause `$browser.url('/foo')` to change `history.state`
 5900    // to undefined via `pushState`. Instead, let's change `undefined` to `null` here.
 5901    if (isUndefined(state)) {
 5902      state = null;
 5903    }
 5904
 5905    // Android Browser BFCache causes location, history reference to become stale.
 5906    if (location !== window.location) location = window.location;
 5907    if (history !== window.history) history = window.history;
 5908
 5909    // setter
 5910    if (url) {
 5911      var sameState = lastHistoryState === state;
 5912
 5913      // Don't change anything if previous and current URLs and states match. This also prevents
 5914      // IE<10 from getting into redirect loop when in LocationHashbangInHtml5Url mode.
 5915      // See https://github.com/angular/angular.js/commit/ffb2701
 5916      if (lastBrowserUrl === url && (!$sniffer.history || sameState)) {
 5917        return self;
 5918      }
 5919      var sameBase = lastBrowserUrl && stripHash(lastBrowserUrl) === stripHash(url);
 5920      lastBrowserUrl = url;
 5921      lastHistoryState = state;
 5922      // Don't use history API if only the hash changed
 5923      // due to a bug in IE10/IE11 which leads
 5924      // to not firing a `hashchange` nor `popstate` event
 5925      // in some cases (see #9143).
 5926      if ($sniffer.history && (!sameBase || !sameState)) {
 5927        history[replace ? 'replaceState' : 'pushState'](state, '', url);
 5928        cacheState();
 5929        // Do the assignment again so that those two variables are referentially identical.
 5930        lastHistoryState = cachedState;
 5931      } else {
 5932        if (!sameBase || pendingLocation) {
 5933          pendingLocation = url;
 5934        }
 5935        if (replace) {
 5936          location.replace(url);
 5937        } else if (!sameBase) {
 5938          location.href = url;
 5939        } else {
 5940          location.hash = getHash(url);
 5941        }
 5942        if (location.href !== url) {
 5943          pendingLocation = url;
 5944        }
 5945      }
 5946      return self;
 5947    // getter
 5948    } else {
 5949      // - pendingLocation is needed as browsers don't allow to read out
 5950      //   the new location.href if a reload happened or if there is a bug like in iOS 9 (see
 5951      //   https://openradar.appspot.com/22186109).
 5952      // - the replacement is a workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=407172
 5953      return pendingLocation || location.href.replace(/%27/g,"'");
 5954    }
 5955  };
 5956
 5957  /**
 5958   * @name $browser#state
 5959   *
 5960   * @description
 5961   * This method is a getter.
 5962   *
 5963   * Return history.state or null if history.state is undefined.
 5964   *
 5965   * @returns {object} state
 5966   */
 5967  self.state = function() {
 5968    return cachedState;
 5969  };
 5970
 5971  var urlChangeListeners = [],
 5972      urlChangeInit = false;
 5973
 5974  function cacheStateAndFireUrlChange() {
 5975    pendingLocation = null;
 5976    cacheState();
 5977    fireUrlChange();
 5978  }
 5979
 5980  // This variable should be used *only* inside the cacheState function.
 5981  var lastCachedState = null;
 5982  function cacheState() {
 5983    // This should be the only place in $browser where `history.state` is read.
 5984    cachedState = getCurrentState();
 5985    cachedState = isUndefined(cachedState) ? null : cachedState;
 5986
 5987    // Prevent callbacks fo fire twice if both hashchange & popstate were fired.
 5988    if (equals(cachedState, lastCachedState)) {
 5989      cachedState = lastCachedState;
 5990    }
 5991    lastCachedState = cachedState;
 5992  }
 5993
 5994  function fireUrlChange() {
 5995    if (lastBrowserUrl === self.url() && lastHistoryState === cachedState) {
 5996      return;
 5997    }
 5998
 5999    lastBrowserUrl = self.url();
 6000    lastHistoryState = cachedState;
 6001    forEach(urlChangeListeners, function(listener) {
 6002      listener(self.url(), cachedState);
 6003    });
 6004  }
 6005
 6006  /**
 6007   * @name $browser#onUrlChange
 6008   *
 6009   * @description
 6010   * Register callback function that will be called, when url changes.
 6011   *
 6012   * It's only called when the url is changed from outside of angular:
 6013   * - user types different url into address bar
 6014   * - user clicks on history (forward/back) button
 6015   * - user clicks on a link
 6016   *
 6017   * It's not called when url is changed by $browser.url() method
 6018   *
 6019   * The listener gets called with new url as parameter.
 6020   *
 6021   * NOTE: this api is intended for use only by the $location service. Please use the
 6022   * {@link ng.$location $location service} to monitor url changes in angular apps.
 6023   *
 6024   * @param {function(string)} listener Listener function to be called when url changes.
 6025   * @return {function(string)} Returns the registered listener fn - handy if the fn is anonymous.
 6026   */
 6027  self.onUrlChange = function(callback) {
 6028    // TODO(vojta): refactor to use node's syntax for events
 6029    if (!urlChangeInit) {
 6030      // We listen on both (hashchange/popstate) when available, as some browsers (e.g. Opera)
 6031      // don't fire popstate when user change the address bar and don't fire hashchange when url
 6032      // changed by push/replaceState
 6033
 6034      // html5 history api - popstate event
 6035      if ($sniffer.history) jqLite(window).on('popstate', cacheStateAndFireUrlChange);
 6036      // hashchange event
 6037      jqLite(window).on('hashchange', cacheStateAndFireUrlChange);
 6038
 6039      urlChangeInit = true;
 6040    }
 6041
 6042    urlChangeListeners.push(callback);
 6043    return callback;
 6044  };
 6045
 6046  /**
 6047   * @private
 6048   * Remove popstate and hashchange handler from window.
 6049   *
 6050   * NOTE: this api is intended for use only by $rootScope.
 6051   */
 6052  self.$$applicationDestroyed = function() {
 6053    jqLite(window).off('hashchange popstate', cacheStateAndFireUrlChange);
 6054  };
 6055
 6056  /**
 6057   * Checks whether the url has changed outside of Angular.
 6058   * Needs to be exported to be able to check for changes that have been done in sync,
 6059   * as hashchange/popstate events fire in async.
 6060   */
 6061  self.$$checkUrlChange = fireUrlChange;
 6062
 6063  //////////////////////////////////////////////////////////////
 6064  // Misc API
 6065  //////////////////////////////////////////////////////////////
 6066
 6067  /**
 6068   * @name $browser#baseHref
 6069   *
 6070   * @description
 6071   * Returns current <base href>
 6072   * (always relative - without domain)
 6073   *
 6074   * @returns {string} The current base href
 6075   */
 6076  self.baseHref = function() {
 6077    var href = baseElement.attr('href');
 6078    return href ? href.replace(/^(https?\:)?\/\/[^\/]*/, '') : '';
 6079  };
 6080
 6081  /**
 6082   * @name $browser#defer
 6083   * @param {function()} fn A function, who's execution should be deferred.
 6084   * @param {number=} [delay=0] of milliseconds to defer the function execution.
 6085   * @returns {*} DeferId that can be used to cancel the task via `$browser.defer.cancel()`.
 6086   *
 6087   * @description
 6088   * Executes a fn asynchronously via `setTimeout(fn, delay)`.
 6089   *
 6090   * Unlike when calling `setTimeout` directly, in test this function is mocked and instead of using
 6091   * `setTimeout` in tests, the fns are queued in an array, which can be programmatically flushed
 6092   * via `$browser.defer.flush()`.
 6093   *
 6094   */
 6095  self.defer = function(fn, delay) {
 6096    var timeoutId;
 6097    outstandingRequestCount++;
 6098    timeoutId = setTimeout(function() {
 6099      delete pendingDeferIds[timeoutId];
 6100      completeOutstandingRequest(fn);
 6101    }, delay || 0);
 6102    pendingDeferIds[timeoutId] = true;
 6103    return timeoutId;
 6104  };
 6105
 6106
 6107  /**
 6108   * @name $browser#defer.cancel
 6109   *
 6110   * @description
 6111   * Cancels a deferred task identified with `deferId`.
 6112   *
 6113   * @param {*} deferId Token returned by the `$browser.defer` function.
 6114   * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully
 6115   *                    canceled.
 6116   */
 6117  self.defer.cancel = function(deferId) {
 6118    if (pendingDeferIds[deferId]) {
 6119      delete pendingDeferIds[deferId];
 6120      clearTimeout(deferId);
 6121      completeOutstandingRequest(noop);
 6122      return true;
 6123    }
 6124    return false;
 6125  };
 6126
 6127}
 6128
 6129function $BrowserProvider() {
 6130  this.$get = ['$window', '$log', '$sniffer', '$document',
 6131      function($window, $log, $sniffer, $document) {
 6132        return new Browser($window, $document, $log, $sniffer);
 6133      }];
 6134}
 6135
 6136/**
 6137 * @ngdoc service
 6138 * @name $cacheFactory
 6139 *
 6140 * @description
 6141 * Factory that constructs {@link $cacheFactory.Cache Cache} objects and gives access to
 6142 * them.
 6143 *
 6144 * ```js
 6145 *
 6146 *  var cache = $cacheFactory('cacheId');
 6147 *  expect($cacheFactory.get('cacheId')).toBe(cache);
 6148 *  expect($cacheFactory.get('noSuchCacheId')).not.toBeDefined();
 6149 *
 6150 *  cache.put("key", "value");
 6151 *  cache.put("another key", "another value");
 6152 *
 6153 *  // We've specified no options on creation
 6154 *  expect(cache.info()).toEqual({id: 'cacheId', size: 2});
 6155 *
 6156 * ```
 6157 *
 6158 *
 6159 * @param {string} cacheId Name or id of the newly created cache.
 6160 * @param {object=} options Options object that specifies the cache behavior. Properties:
 6161 *
 6162 *   - `{number=}` `capacity` — turns the cache into LRU cache.
 6163 *
 6164 * @returns {object} Newly created cache object with the following set of methods:
 6165 *
 6166 * - `{object}` `info()` — Returns id, size, and options of cache.
 6167 * - `{{*}}` `put({string} key, {*} value)` — Puts a new key-value pair into the cache and returns
 6168 *   it.
 6169 * - `{{*}}` `get({string} key)` — Returns cached value for `key` or undefined for cache miss.
 6170 * - `{void}` `remove({string} key)` — Removes a key-value pair from the cache.
 6171 * - `{void}` `removeAll()` — Removes all cached values.
 6172 * - `{void}` `destroy()` — Removes references to this cache from $cacheFactory.
 6173 *
 6174 * @example
 6175   <example module="cacheExampleApp">
 6176     <file name="index.html">
 6177       <div ng-controller="CacheController">
 6178         <input ng-model="newCacheKey" placeholder="Key">
 6179         <input ng-model="newCacheValue" placeholder="Value">
 6180         <button ng-click="put(newCacheKey, newCacheValue)">Cache</button>
 6181
 6182         <p ng-if="keys.length">Cached Values</p>
 6183         <div ng-repeat="key in keys">
 6184           <span ng-bind="key"></span>
 6185           <span>: </span>
 6186           <b ng-bind="cache.get(key)"></b>
 6187         </div>
 6188
 6189         <p>Cache Info</p>
 6190         <div ng-repeat="(key, value) in cache.info()">
 6191           <span ng-bind="key"></span>
 6192           <span>: </span>
 6193           <b ng-bind="value"></b>
 6194         </div>
 6195       </div>
 6196     </file>
 6197     <file name="script.js">
 6198       angular.module('cacheExampleApp', []).
 6199         controller('CacheController', ['$scope', '$cacheFactory', function($scope, $cacheFactory) {
 6200           $scope.keys = [];
 6201           $scope.cache = $cacheFactory('cacheId');
 6202           $scope.put = function(key, value) {
 6203             if (angular.isUndefined($scope.cache.get(key))) {
 6204               $scope.keys.push(key);
 6205             }
 6206             $scope.cache.put(key, angular.isUndefined(value) ? null : value);
 6207           };
 6208         }]);
 6209     </file>
 6210     <file name="style.css">
 6211       p {
 6212         margin: 10px 0 3px;
 6213       }
 6214     </file>
 6215   </example>
 6216 */
 6217function $CacheFactoryProvider() {
 6218
 6219  this.$get = function() {
 6220    var caches = {};
 6221
 6222    function cacheFactory(cacheId, options) {
 6223      if (cacheId in caches) {
 6224        throw minErr('$cacheFactory')('iid', "CacheId '{0}' is already taken!", cacheId);
 6225      }
 6226
 6227      var size = 0,
 6228          stats = extend({}, options, {id: cacheId}),
 6229          data = createMap(),
 6230          capacity = (options && options.capacity) || Number.MAX_VALUE,
 6231          lruHash = createMap(),
 6232          freshEnd = null,
 6233          staleEnd = null;
 6234
 6235      /**
 6236       * @ngdoc type
 6237       * @name $cacheFactory.Cache
 6238       *
 6239       * @description
 6240       * A cache object used to store and retrieve data, primarily used by
 6241       * {@link $http $http} and the {@link ng.directive:script script} directive to cache
 6242       * templates and other data.
 6243       *
 6244       * ```js
 6245       *  angular.module('superCache')
 6246       *    .factory('superCache', ['$cacheFactory', function($cacheFactory) {
 6247       *      return $cacheFactory('super-cache');
 6248       *    }]);
 6249       * ```
 6250       *
 6251       * Example test:
 6252       *
 6253       * ```js
 6254       *  it('should behave like a cache', inject(function(superCache) {
 6255       *    superCache.put('key', 'value');
 6256       *    superCache.put('another key', 'another value');
 6257       *
 6258       *    expect(superCache.info()).toEqual({
 6259       *      id: 'super-cache',
 6260       *      size: 2
 6261       *    });
 6262       *
 6263       *    superCache.remove('another key');
 6264       *    expect(superCache.get('another key')).toBeUndefined();
 6265       *
 6266       *    superCache.removeAll();
 6267       *    expect(superCache.info()).toEqual({
 6268       *      id: 'super-cache',
 6269       *      size: 0
 6270       *    });
 6271       *  }));
 6272       * ```
 6273       */
 6274      return caches[cacheId] = {
 6275
 6276        /**
 6277         * @ngdoc method
 6278         * @name $cacheFactory.Cache#put
 6279         * @kind function
 6280         *
 6281         * @description
 6282         * Inserts a named entry into the {@link $cacheFactory.Cache Cache} object to be
 6283         * retrieved later, and incrementing the size of the cache if the key was not already
 6284         * present in the cache. If behaving like an LRU cache, it will also remove stale
 6285         * entries from the set.
 6286         *
 6287         * It will not insert undefined values into the cache.
 6288         *
 6289         * @param {string} key the key under which the cached data is stored.
 6290         * @param {*} value the value to store alongside the key. If it is undefined, the key
 6291         *    will not be stored.
 6292         * @returns {*} the value stored.
 6293         */
 6294        put: function(key, value) {
 6295          if (isUndefined(value)) return;
 6296          if (capacity < Number.MAX_VALUE) {
 6297            var lruEntry = lruHash[key] || (lruHash[key] = {key: key});
 6298
 6299            refresh(lruEntry);
 6300          }
 6301
 6302          if (!(key in data)) size++;
 6303          data[key] = value;
 6304
 6305          if (size > capacity) {
 6306            this.remove(staleEnd.key);
 6307          }
 6308
 6309          return value;
 6310        },
 6311
 6312        /**
 6313         * @ngdoc method
 6314         * @name $cacheFactory.Cache#get
 6315         * @kind function
 6316         *
 6317         * @description
 6318         * Retrieves named data stored in the {@link $cacheFactory.Cache Cache} object.
 6319         *
 6320         * @param {string} key the key of the data to be retrieved
 6321         * @returns {*} the value stored.
 6322         */
 6323        get: function(key) {
 6324          if (capacity < Number.MAX_VALUE) {
 6325            var lruEntry = lruHash[key];
 6326
 6327            if (!lruEntry) return;
 6328
 6329            refresh(lruEntry);
 6330          }
 6331
 6332          return data[key];
 6333        },
 6334
 6335
 6336        /**
 6337         * @ngdoc method
 6338         * @name $cacheFactory.Cache#remove
 6339         * @kind function
 6340         *
 6341         * @description
 6342         * Removes an entry from the {@link $cacheFactory.Cache Cache} object.
 6343         *
 6344         * @param {string} key the key of the entry to be removed
 6345         */
 6346        remove: function(key) {
 6347          if (capacity < Number.MAX_VALUE) {
 6348            var lruEntry = lruHash[key];
 6349
 6350            if (!lruEntry) return;
 6351
 6352            if (lruEntry == freshEnd) freshEnd = lruEntry.p;
 6353            if (lruEntry == staleEnd) staleEnd = lruEntry.n;
 6354            link(lruEntry.n,lruEntry.p);
 6355
 6356            delete lruHash[key];
 6357          }
 6358
 6359          if (!(key in data)) return;
 6360
 6361          delete data[key];
 6362          size--;
 6363        },
 6364
 6365
 6366        /**
 6367         * @ngdoc method
 6368         * @name $cacheFactory.Cache#removeAll
 6369         * @kind function
 6370         *
 6371         * @description
 6372         * Clears the cache object of any entries.
 6373         */
 6374        removeAll: function() {
 6375          data = createMap();
 6376          size = 0;
 6377          lruHash = createMap();
 6378          freshEnd = staleEnd = null;
 6379        },
 6380
 6381
 6382        /**
 6383         * @ngdoc method
 6384         * @name $cacheFactory.Cache#destroy
 6385         * @kind function
 6386         *
 6387         * @description
 6388         * Destroys the {@link $cacheFactory.Cache Cache} object entirely,
 6389         * removing it from the {@link $cacheFactory $cacheFactory} set.
 6390         */
 6391        destroy: function() {
 6392          data = null;
 6393          stats = null;
 6394          lruHash = null;
 6395          delete caches[cacheId];
 6396        },
 6397
 6398
 6399        /**
 6400         * @ngdoc method
 6401         * @name $cacheFactory.Cache#info
 6402         * @kind function
 6403         *
 6404         * @description
 6405         * Retrieve information regarding a particular {@link $cacheFactory.Cache Cache}.
 6406         *
 6407         * @returns {object} an object with the following properties:
 6408         *   <ul>
 6409         *     <li>**id**: the id of the cache instance</li>
 6410         *     <li>**size**: the number of entries kept in the cache instance</li>
 6411         *     <li>**...**: any additional properties from the options object when creating the
 6412         *       cache.</li>
 6413         *   </ul>
 6414         */
 6415        info: function() {
 6416          return extend({}, stats, {size: size});
 6417        }
 6418      };
 6419
 6420
 6421      /**
 6422       * makes the `entry` the freshEnd of the LRU linked list
 6423       */
 6424      function refresh(entry) {
 6425        if (entry != freshEnd) {
 6426          if (!staleEnd) {
 6427            staleEnd = entry;
 6428          } else if (staleEnd == entry) {
 6429            staleEnd = entry.n;
 6430          }
 6431
 6432          link(entry.n, entry.p);
 6433          link(entry, freshEnd);
 6434          freshEnd = entry;
 6435          freshEnd.n = null;
 6436        }
 6437      }
 6438
 6439
 6440      /**
 6441       * bidirectionally links two entries of the LRU linked list
 6442       */
 6443      function link(nextEntry, prevEntry) {
 6444        if (nextEntry != prevEntry) {
 6445          if (nextEntry) nextEntry.p = prevEntry; //p stands for previous, 'prev' didn't minify
 6446          if (prevEntry) prevEntry.n = nextEntry; //n stands for next, 'next' didn't minify
 6447        }
 6448      }
 6449    }
 6450
 6451
 6452  /**
 6453   * @ngdoc method
 6454   * @name $cacheFactory#info
 6455   *
 6456   * @description
 6457   * Get information about all the caches that have been created
 6458   *
 6459   * @returns {Object} - key-value map of `cacheId` to the result of calling `cache#info`
 6460   */
 6461    cacheFactory.info = function() {
 6462      var info = {};
 6463      forEach(caches, function(cache, cacheId) {
 6464        info[cacheId] = cache.info();
 6465      });
 6466      return info;
 6467    };
 6468
 6469
 6470  /**
 6471   * @ngdoc method
 6472   * @name $cacheFactory#get
 6473   *
 6474   * @description
 6475   * Get access to a cache object by the `cacheId` used when it was created.
 6476   *
 6477   * @param {string} cacheId Name or id of a cache to access.
 6478   * @returns {object} Cache object identified by the cacheId or undefined if no such cache.
 6479   */
 6480    cacheFactory.get = function(cacheId) {
 6481      return caches[cacheId];
 6482    };
 6483
 6484
 6485    return cacheFactory;
 6486  };
 6487}
 6488
 6489/**
 6490 * @ngdoc service
 6491 * @name $templateCache
 6492 *
 6493 * @description
 6494 * The first time a template is used, it is loaded in the template cache for quick retrieval. You
 6495 * can load templates directly into the cache in a `script` tag, or by consuming the
 6496 * `$templateCache` service directly.
 6497 *
 6498 * Adding via the `script` tag:
 6499 *
 6500 * ```html
 6501 *   <script type="text/ng-template" id="templateId.html">
 6502 *     <p>This is the content of the template</p>
 6503 *   </script>
 6504 * ```
 6505 *
 6506 * **Note:** the `script` tag containing the template does not need to be included in the `head` of
 6507 * the document, but it must be a descendent of the {@link ng.$rootElement $rootElement} (IE,
 6508 * element with ng-app attribute), otherwise the template will be ignored.
 6509 *
 6510 * Adding via the `$templateCache` service:
 6511 *
 6512 * ```js
 6513 * var myApp = angular.module('myApp', []);
 6514 * myApp.run(function($templateCache) {
 6515 *   $templateCache.put('templateId.html', 'This is the content of the template');
 6516 * });
 6517 * ```
 6518 *
 6519 * To retrieve the template later, simply use it in your HTML:
 6520 * ```html
 6521 * <div ng-include=" 'templateId.html' "></div>
 6522 * ```
 6523 *
 6524 * or get it via Javascript:
 6525 * ```js
 6526 * $templateCache.get('templateId.html')
 6527 * ```
 6528 *
 6529 * See {@link ng.$cacheFactory $cacheFactory}.
 6530 *
 6531 */
 6532function $TemplateCacheProvider() {
 6533  this.$get = ['$cacheFactory', function($cacheFactory) {
 6534    return $cacheFactory('templates');
 6535  }];
 6536}
 6537
 6538/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 6539 *     Any commits to this file should be reviewed with security in mind.  *
 6540 *   Changes to this file can potentially create security vulnerabilities. *
 6541 *          An approval from 2 Core members with history of modifying      *
 6542 *                         this file is required.                          *
 6543 *                                                                         *
 6544 *  Does the change somehow allow for arbitrary javascript to be executed? *
 6545 *    Or allows for someone to change the prototype of built-in objects?   *
 6546 *     Or gives undesired access to variables likes document or window?    *
 6547 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 6548
 6549/* ! VARIABLE/FUNCTION NAMING CONVENTIONS THAT APPLY TO THIS FILE!
 6550 *
 6551 * DOM-related variables:
 6552 *
 6553 * - "node" - DOM Node
 6554 * - "element" - DOM Element or Node
 6555 * - "$node" or "$element" - jqLite-wrapped node or element
 6556 *
 6557 *
 6558 * Compiler related stuff:
 6559 *
 6560 * - "linkFn" - linking fn of a single directive
 6561 * - "nodeLinkFn" - function that aggregates all linking fns for a particular node
 6562 * - "childLinkFn" -  function that aggregates all linking fns for child nodes of a particular node
 6563 * - "compositeLinkFn" - function that aggregates all linking fns for a compilation root (nodeList)
 6564 */
 6565
 6566
 6567/**
 6568 * @ngdoc service
 6569 * @name $compile
 6570 * @kind function
 6571 *
 6572 * @description
 6573 * Compiles an HTML string or DOM into a template and produces a template function, which
 6574 * can then be used to link {@link ng.$rootScope.Scope `scope`} and the template together.
 6575 *
 6576 * The compilation is a process of walking the DOM tree and matching DOM elements to
 6577 * {@link ng.$compileProvider#directive directives}.
 6578 *
 6579 * <div class="alert alert-warning">
 6580 * **Note:** This document is an in-depth reference of all directive options.
 6581 * For a gentle introduction to directives with examples of common use cases,
 6582 * see the {@link guide/directive directive guide}.
 6583 * </div>
 6584 *
 6585 * ## Comprehensive Directive API
 6586 *
 6587 * There are many different options for a directive.
 6588 *
 6589 * The difference resides in the return value of the factory function.
 6590 * You can either return a "Directive Definition Object" (see below) that defines the directive properties,
 6591 * or just the `postLink` function (all other properties will have the default values).
 6592 *
 6593 * <div class="alert alert-success">
 6594 * **Best Practice:** It's recommended to use the "directive definition object" form.
 6595 * </div>
 6596 *
 6597 * Here's an example directive declared with a Directive Definition Object:
 6598 *
 6599 * ```js
 6600 *   var myModule = angular.module(...);
 6601 *
 6602 *   myModule.directive('directiveName', function factory(injectables) {
 6603 *     var directiveDefinitionObject = {
 6604 *       priority: 0,
 6605 *       template: '<div></div>', // or // function(tElement, tAttrs) { ... },
 6606 *       // or
 6607 *       // templateUrl: 'directive.html', // or // function(tElement, tAttrs) { ... },
 6608 *       transclude: false,
 6609 *       restrict: 'A',
 6610 *       templateNamespace: 'html',
 6611 *       scope: false,
 6612 *       controller: function($scope, $element, $attrs, $transclude, otherInjectables) { ... },
 6613 *       controllerAs: 'stringIdentifier',
 6614 *       bindToController: false,
 6615 *       require: 'siblingDirectiveName', // or // ['^parentDirectiveName', '?optionalDirectiveName', '?^optionalParent'],
 6616 *       compile: function compile(tElement, tAttrs, transclude) {
 6617 *         return {
 6618 *           pre: function preLink(scope, iElement, iAttrs, controller) { ... },
 6619 *           post: function postLink(scope, iElement, iAttrs, controller) { ... }
 6620 *         }
 6621 *         // or
 6622 *         // return function postLink( ... ) { ... }
 6623 *       },
 6624 *       // or
 6625 *       // link: {
 6626 *       //  pre: function preLink(scope, iElement, iAttrs, controller) { ... },
 6627 *       //  post: function postLink(scope, iElement, iAttrs, controller) { ... }
 6628 *       // }
 6629 *       // or
 6630 *       // link: function postLink( ... ) { ... }
 6631 *     };
 6632 *     return directiveDefinitionObject;
 6633 *   });
 6634 * ```
 6635 *
 6636 * <div class="alert alert-warning">
 6637 * **Note:** Any unspecified options will use the default value. You can see the default values below.
 6638 * </div>
 6639 *
 6640 * Therefore the above can be simplified as:
 6641 *
 6642 * ```js
 6643 *   var myModule = angular.module(...);
 6644 *
 6645 *   myModule.directive('directiveName', function factory(injectables) {
 6646 *     var directiveDefinitionObject = {
 6647 *       link: function postLink(scope, iElement, iAttrs) { ... }
 6648 *     };
 6649 *     return directiveDefinitionObject;
 6650 *     // or
 6651 *     // return function postLink(scope, iElement, iAttrs) { ... }
 6652 *   });
 6653 * ```
 6654 *
 6655 *
 6656 *
 6657 * ### Directive Definition Object
 6658 *
 6659 * The directive definition object provides instructions to the {@link ng.$compile
 6660 * compiler}. The attributes are:
 6661 *
 6662 * #### `multiElement`
 6663 * When this property is set to true, the HTML compiler will collect DOM nodes between
 6664 * nodes with the attributes `directive-name-start` and `directive-name-end`, and group them
 6665 * together as the directive elements. It is recommended that this feature be used on directives
 6666 * which are not strictly behavioral (such as {@link ngClick}), and which
 6667 * do not manipulate or replace child nodes (such as {@link ngInclude}).
 6668 *
 6669 * #### `priority`
 6670 * When there are multiple directives defined on a single DOM element, sometimes it
 6671 * is necessary to specify the order in which the directives are applied. The `priority` is used
 6672 * to sort the directives before their `compile` functions get called. Priority is defined as a
 6673 * number. Directives with greater numerical `priority` are compiled first. Pre-link functions
 6674 * are also run in priority order, but post-link functions are run in reverse order. The order
 6675 * of directives with the same priority is undefined. The default priority is `0`.
 6676 *
 6677 * #### `terminal`
 6678 * If set to true then the current `priority` will be the last set of directives
 6679 * which will execute (any directives at the current priority will still execute
 6680 * as the order of execution on same `priority` is undefined). Note that expressions
 6681 * and other directives used in the directive's template will also be excluded from execution.
 6682 *
 6683 * #### `scope`
 6684 * The scope property can be `true`, an object or a falsy value:
 6685 *
 6686 * * **falsy:** No scope will be created for the directive. The directive will use its parent's scope.
 6687 *
 6688 * * **`true`:** A new child scope that prototypically inherits from its parent will be created for
 6689 * the directive's element. If multiple directives on the same element request a new scope,
 6690 * only one new scope is created. The new scope rule does not apply for the root of the template
 6691 * since the root of the template always gets a new scope.
 6692 *
 6693 * * **`{...}` (an object hash):** A new "isolate" scope is created for the directive's element. The
 6694 * 'isolate' scope differs from normal scope in that it does not prototypically inherit from its parent
 6695 * scope. This is useful when creating reusable components, which should not accidentally read or modify
 6696 * data in the parent scope.
 6697 *
 6698 * The 'isolate' scope object hash defines a set of local scope properties derived from attributes on the
 6699 * directive's element. These local properties are useful for aliasing values for templates. The keys in
 6700 * the object hash map to the name of the property on the isolate scope; the values define how the property
 6701 * is bound to the parent scope, via matching attributes on the directive's element:
 6702 *
 6703 * * `@` or `@attr` - bind a local scope property to the value of DOM attribute. The result is
 6704 *   always a string since DOM attributes are strings. If no `attr` name is specified then the
 6705 *   attribute name is assumed to be the same as the local name. Given `<my-component
 6706 *   my-attr="hello {{name}}">` and the isolate scope definition `scope: { localName:'@myAttr' }`,
 6707 *   the directive's scope property `localName` will reflect the interpolated value of `hello
 6708 *   {{name}}`. As the `name` attribute changes so will the `localName` property on the directive's
 6709 *   scope. The `name` is read from the parent scope (not the directive's scope).
 6710 *
 6711 * * `=` or `=attr` - set up a bidirectional binding between a local scope property and an expression
 6712 *   passed via the attribute `attr`. The expression is evaluated in the context of the parent scope.
 6713 *   If no `attr` name is specified then the attribute name is assumed to be the same as the local
 6714 *   name. Given `<my-component my-attr="parentModel">` and the isolate scope definition `scope: {
 6715 *   localModel: '=myAttr' }`, the property `localModel` on the directive's scope will reflect the
 6716 *   value of `parentModel` on the parent scope. Changes to `parentModel` will be reflected in
 6717 *   `localModel` and vice versa. Optional attributes should be marked as such with a question mark:
 6718 *   `=?` or `=?attr`. If the binding expression is non-assignable, or if the attribute isn't
 6719 *   optional and doesn't exist, an exception ({@link error/$compile/nonassign `$compile:nonassign`})
 6720 *   will be thrown upon discovering changes to the local value, since it will be impossible to sync
 6721 *   them back to the parent scope. By default, the {@link ng.$rootScope.Scope#$watch `$watch`}
 6722 *   method is used for tracking changes, and the equality check is based on object identity.
 6723 *   However, if an object literal or an array literal is passed as the binding expression, the
 6724 *   equality check is done by value (using the {@link angular.equals} function). It's also possible
 6725 *   to watch the evaluated value shallowly with {@link ng.$rootScope.Scope#$watchCollection
 6726 *   `$watchCollection`}: use `=*` or `=*attr` (`=*?` or `=*?attr` if the attribute is optional).
 6727 *
 6728  * * `<` or `<attr` - set up a one-way (one-directional) binding between a local scope property and an
 6729 *   expression passed via the attribute `attr`. The expression is evaluated in the context of the
 6730 *   parent scope. If no `attr` name is specified then the attribute name is assumed to be the same as the
 6731 *   local name. You can also make the binding optional by adding `?`: `<?` or `<?attr`.
 6732 *
 6733 *   For example, given `<my-component my-attr="parentModel">` and directive definition of
 6734 *   `scope: { localModel:'<myAttr' }`, then the isolated scope property `localModel` will reflect the
 6735 *   value of `parentModel` on the parent scope. Any changes to `parentModel` will be reflected
 6736 *   in `localModel`, but changes in `localModel` will not reflect in `parentModel`. There are however
 6737 *   two caveats:
 6738 *     1. one-way binding does not copy the value from the parent to the isolate scope, it simply
 6739 *     sets the same value. That means if your bound value is an object, changes to its properties
 6740 *     in the isolated scope will be reflected in the parent scope (because both reference the same object).
 6741 *     2. one-way binding watches changes to the **identity** of the parent value. That means the
 6742 *     {@link ng.$rootScope.Scope#$watch `$watch`} on the parent value only fires if the reference
 6743 *     to the value has changed. In most cases, this should not be of concern, but can be important
 6744 *     to know if you one-way bind to an object, and then replace that object in the isolated scope.
 6745 *     If you now change a property of the object in your parent scope, the change will not be
 6746 *     propagated to the isolated scope, because the identity of the object on the parent scope
 6747 *     has not changed. Instead you must assign a new object.
 6748 *
 6749 *   One-way binding is useful if you do not plan to propagate changes to your isolated scope bindings
 6750 *   back to the parent. However, it does not make this completely impossible.
 6751 *
 6752 * * `&` or `&attr` - provides a way to execute an expression in the context of the parent scope. If
 6753 *   no `attr` name is specified then the attribute name is assumed to be the same as the local name.
 6754 *   Given `<my-component my-attr="count = count + value">` and the isolate scope definition `scope: {
 6755 *   localFn:'&myAttr' }`, the isolate scope property `localFn` will point to a function wrapper for
 6756 *   the `count = count + value` expression. Often it's desirable to pass data from the isolated scope
 6757 *   via an expression to the parent scope. This can be done by passing a map of local variable names
 6758 *   and values into the expression wrapper fn. For example, if the expression is `increment(amount)`
 6759 *   then we can specify the amount value by calling the `localFn` as `localFn({amount: 22})`.
 6760 *
 6761 * In general it's possible to apply more than one directive to one element, but there might be limitations
 6762 * depending on the type of scope required by the directives. The following points will help explain these limitations.
 6763 * For simplicity only two directives are taken into account, but it is also applicable for several directives:
 6764 *
 6765 * * **no scope** + **no scope** => Two directives which don't require their own scope will use their parent's scope
 6766 * * **child scope** + **no scope** =>  Both directives will share one single child scope
 6767 * * **child scope** + **child scope** =>  Both directives will share one single child scope
 6768 * * **isolated scope** + **no scope** =>  The isolated directive will use it's own created isolated scope. The other directive will use
 6769 * its parent's scope
 6770 * * **isolated scope** + **child scope** =>  **Won't work!** Only one scope can be related to one element. Therefore these directives cannot
 6771 * be applied to the same element.
 6772 * * **isolated scope** + **isolated scope**  =>  **Won't work!** Only one scope can be related to one element. Therefore these directives
 6773 * cannot be applied to the same element.
 6774 *
 6775 *
 6776 * #### `bindToController`
 6777 * This property is used to bind scope properties directly to the controller. It can be either
 6778 * `true` or an object hash with the same format as the `scope` property. Additionally, a controller
 6779 * alias must be set, either by using `controllerAs: 'myAlias'` or by specifying the alias in the controller
 6780 * definition: `controller: 'myCtrl as myAlias'`.
 6781 *
 6782 * When an isolate scope is used for a directive (see above), `bindToController: true` will
 6783 * allow a component to have its properties bound to the controller, rather than to scope.
 6784 *
 6785 * After the controller is instantiated, the initial values of the isolate scope bindings will be bound to the controller
 6786 * properties. You can access these bindings once they have been initialized by providing a controller method called
 6787 * `$onInit`, which is called after all the controllers on an element have been constructed and had their bindings
 6788 * initialized.
 6789 *
 6790 * <div class="alert alert-warning">
 6791 * **Deprecation warning:** although bindings for non-ES6 class controllers are currently
 6792 * bound to `this` before the controller constructor is called, this use is now deprecated. Please place initialization
 6793 * code that relies upon bindings inside a `$onInit` method on the controller, instead.
 6794 * </div>
 6795 *
 6796 * It is also possible to set `bindToController` to an object hash with the same format as the `scope` property.
 6797 * This will set up the scope bindings to the controller directly. Note that `scope` can still be used
 6798 * to define which kind of scope is created. By default, no scope is created. Use `scope: {}` to create an isolate
 6799 * scope (useful for component directives).
 6800 *
 6801 * If both `bindToController` and `scope` are defined and have object hashes, `bindToController` overrides `scope`.
 6802 *
 6803 *
 6804 * #### `controller`
 6805 * Controller constructor function. The controller is instantiated before the
 6806 * pre-linking phase and can be accessed by other directives (see
 6807 * `require` attribute). This allows the directives to communicate with each other and augment
 6808 * each other's behavior. The controller is injectable (and supports bracket notation) with the following locals:
 6809 *
 6810 * * `$scope` - Current scope associated with the element
 6811 * * `$element` - Current element
 6812 * * `$attrs` - Current attributes object for the element
 6813 * * `$transclude` - A transclude linking function pre-bound to the correct transclusion scope:
 6814 *   `function([scope], cloneLinkingFn, futureParentElement, slotName)`:
 6815 *    * `scope`: (optional) override the scope.
 6816 *    * `cloneLinkingFn`: (optional) argument to create clones of the original transcluded content.
 6817 *    * `futureParentElement` (optional):
 6818 *        * defines the parent to which the `cloneLinkingFn` will add the cloned elements.
 6819 *        * default: `$element.parent()` resp. `$element` for `transclude:'element'` resp. `transclude:true`.
 6820 *        * only needed for transcludes that are allowed to contain non html elements (e.g. SVG elements)
 6821 *          and when the `cloneLinkinFn` is passed,
 6822 *          as those elements need to created and cloned in a special way when they are defined outside their
 6823 *          usual containers (e.g. like `<svg>`).
 6824 *        * See also the `directive.templateNamespace` property.
 6825 *    * `slotName`: (optional) the name of the slot to transclude. If falsy (e.g. `null`, `undefined` or `''`)
 6826 *      then the default translusion is provided.
 6827 *    The `$transclude` function also has a method on it, `$transclude.isSlotFilled(slotName)`, which returns
 6828 *    `true` if the specified slot contains content (i.e. one or more DOM nodes).
 6829 *
 6830 * The controller can provide the following methods that act as life-cycle hooks:
 6831 * * `$onInit()` - Called on each controller after all the controllers on an element have been constructed and
 6832 *   had their bindings initialized (and before the pre &amp; post linking functions for the directives on
 6833 *   this element). This is a good place to put initialization code for your controller.
 6834 * * `$onChanges(changesObj)` - Called whenever one-way (`<`) or interpolation (`@`) bindings are updated. The
 6835 *   `changesObj` is a hash whose keys are the names of the bound properties that have changed, and the values are an
 6836 *   object of the form `{ currentValue: ..., previousValue: ... }`. Use this hook to trigger updates within a component
 6837 *   such as cloning the bound value to prevent accidental mutation of the outer value.
 6838 * * `$onDestroy()` - Called on a controller when its containing scope is destroyed. Use this hook for releasing
 6839 *   external resources, watches and event handlers. Note that components have their `$onDestroy()` hooks called in
 6840 *   the same order as the `$scope.$broadcast` events are triggered, which is top down. This means that parent
 6841 *   components will have their `$onDestroy()` hook called before child components.
 6842 * * `$postLink()` - Called after this controller's element and its children have been linked. Similar to the post-link
 6843 *   function this hook can be used to set up DOM event handlers and do direct DOM manipulation.
 6844 *   Note that child elements that contain `templateUrl` directives will not have been compiled and linked since
 6845 *   they are waiting for their template to load asynchronously and their own compilation and linking has been
 6846 *   suspended until that occurs.
 6847 *
 6848 *
 6849 * #### `require`
 6850 * Require another directive and inject its controller as the fourth argument to the linking function. The
 6851 * `require` property can be a string, an array or an object:
 6852 * * a **string** containing the name of the directive to pass to the linking function
 6853 * * an **array** containing the names of directives to pass to the linking function. The argument passed to the
 6854 * linking function will be an array of controllers in the same order as the names in the `require` property
 6855 * * an **object** whose property values are the names of the directives to pass to the linking function. The argument
 6856 * passed to the linking function will also be an object with matching keys, whose values will hold the corresponding
 6857 * controllers.
 6858 *
 6859 * If the `require` property is an object and `bindToController` is truthy, then the required controllers are
 6860 * bound to the controller using the keys of the `require` property. This binding occurs after all the controllers
 6861 * have been constructed but before `$onInit` is called.
 6862 * See the {@link $compileProvider#component} helper for an example of how this can be used.
 6863 *
 6864 * If no such required directive(s) can be found, or if the directive does not have a controller, then an error is
 6865 * raised (unless no link function is specified and the required controllers are not being bound to the directive
 6866 * controller, in which case error checking is skipped). The name can be prefixed with:
 6867 *
 6868 * * (no prefix) - Locate the required controller on the current element. Throw an error if not found.
 6869 * * `?` - Attempt to locate the required controller or pass `null` to the `link` fn if not found.
 6870 * * `^` - Locate the required controller by searching the element and its parents. Throw an error if not found.
 6871 * * `^^` - Locate the required controller by searching the element's parents. Throw an error if not found.
 6872 * * `?^` - Attempt to locate the required controller by searching the element and its parents or pass
 6873 *   `null` to the `link` fn if not found.
 6874 * * `?^^` - Attempt to locate the required controller by searching the element's parents, or pass
 6875 *   `null` to the `link` fn if not found.
 6876 *
 6877 *
 6878 * #### `controllerAs`
 6879 * Identifier name for a reference to the controller in the directive's scope.
 6880 * This allows the controller to be referenced from the directive template. This is especially
 6881 * useful when a directive is used as component, i.e. with an `isolate` scope. It's also possible
 6882 * to use it in a directive without an `isolate` / `new` scope, but you need to be aware that the
 6883 * `controllerAs` reference might overwrite a property that already exists on the parent scope.
 6884 *
 6885 *
 6886 * #### `restrict`
 6887 * String of subset of `EACM` which restricts the directive to a specific directive
 6888 * declaration style. If omitted, the defaults (elements and attributes) are used.
 6889 *
 6890 * * `E` - Element name (default): `<my-directive></my-directive>`
 6891 * * `A` - Attribute (default): `<div my-directive="exp"></div>`
 6892 * * `C` - Class: `<div class="my-directive: exp;"></div>`
 6893 * * `M` - Comment: `<!-- directive: my-directive exp -->`
 6894 *
 6895 *
 6896 * #### `templateNamespace`
 6897 * String representing the document type used by the markup in the template.
 6898 * AngularJS needs this information as those elements need to be created and cloned
 6899 * in a special way when they are defined outside their usual containers like `<svg>` and `<math>`.
 6900 *
 6901 * * `html` - All root nodes in the template are HTML. Root nodes may also be
 6902 *   top-level elements such as `<svg>` or `<math>`.
 6903 * * `svg` - The root nodes in the template are SVG elements (excluding `<math>`).
 6904 * * `math` - The root nodes in the template are MathML elements (excluding `<svg>`).
 6905 *
 6906 * If no `templateNamespace` is specified, then the namespace is considered to be `html`.
 6907 *
 6908 * #### `template`
 6909 * HTML markup that may:
 6910 * * Replace the contents of the directive's element (default).
 6911 * * Replace the directive's element itself (if `replace` is true - DEPRECATED).
 6912 * * Wrap the contents of the directive's element (if `transclude` is true).
 6913 *
 6914 * Value may be:
 6915 *
 6916 * * A string. For example `<div red-on-hover>{{delete_str}}</div>`.
 6917 * * A function which takes two arguments `tElement` and `tAttrs` (described in the `compile`
 6918 *   function api below) and returns a string value.
 6919 *
 6920 *
 6921 * #### `templateUrl`
 6922 * This is similar to `template` but the template is loaded from the specified URL, asynchronously.
 6923 *
 6924 * Because template loading is asynchronous the compiler will suspend compilation of directives on that element
 6925 * for later when the template has been resolved.  In the meantime it will continue to compile and link
 6926 * sibling and parent elements as though this element had not contained any directives.
 6927 *
 6928 * The compiler does not suspend the entire compilation to wait for templates to be loaded because this
 6929 * would result in the whole app "stalling" until all templates are loaded asynchronously - even in the
 6930 * case when only one deeply nested directive has `templateUrl`.
 6931 *
 6932 * Template loading is asynchronous even if the template has been preloaded into the {@link $templateCache}
 6933 *
 6934 * You can specify `templateUrl` as a string representing the URL or as a function which takes two
 6935 * arguments `tElement` and `tAttrs` (described in the `compile` function api below) and returns
 6936 * a string value representing the url.  In either case, the template URL is passed through {@link
 6937 * $sce#getTrustedResourceUrl $sce.getTrustedResourceUrl}.
 6938 *
 6939 *
 6940 * #### `replace` ([*DEPRECATED*!], will be removed in next major release - i.e. v2.0)
 6941 * specify what the template should replace. Defaults to `false`.
 6942 *
 6943 * * `true` - the template will replace the directive's element.
 6944 * * `false` - the template will replace the contents of the directive's element.
 6945 *
 6946 * The replacement process migrates all of the attributes / classes from the old element to the new
 6947 * one. See the {@link guide/directive#template-expanding-directive
 6948 * Directives Guide} for an example.
 6949 *
 6950 * There are very few scenarios where element replacement is required for the application function,
 6951 * the main one being reusable custom components that are used within SVG contexts
 6952 * (because SVG doesn't work with custom elements in the DOM tree).
 6953 *
 6954 * #### `transclude`
 6955 * Extract the contents of the element where the directive appears and make it available to the directive.
 6956 * The contents are compiled and provided to the directive as a **transclusion function**. See the
 6957 * {@link $compile#transclusion Transclusion} section below.
 6958 *
 6959 *
 6960 * #### `compile`
 6961 *
 6962 * ```js
 6963 *   function compile(tElement, tAttrs, transclude) { ... }
 6964 * ```
 6965 *
 6966 * The compile function deals with transforming the template DOM. Since most directives do not do
 6967 * template transformation, it is not used often. The compile function takes the following arguments:
 6968 *
 6969 *   * `tElement` - template element - The element where the directive has been declared. It is
 6970 *     safe to do template transformation on the element and child elements only.
 6971 *
 6972 *   * `tAttrs` - template attributes - Normalized list of attributes declared on this element shared
 6973 *     between all directive compile functions.
 6974 *
 6975 *   * `transclude` -  [*DEPRECATED*!] A transclude linking function: `function(scope, cloneLinkingFn)`
 6976 *
 6977 * <div class="alert alert-warning">
 6978 * **Note:** The template instance and the link instance may be different objects if the template has
 6979 * been cloned. For this reason it is **not** safe to do anything other than DOM transformations that
 6980 * apply to all cloned DOM nodes within the compile function. Specifically, DOM listener registration
 6981 * should be done in a linking function rather than in a compile function.
 6982 * </div>
 6983
 6984 * <div class="alert alert-warning">
 6985 * **Note:** The compile function cannot handle directives that recursively use themselves in their
 6986 * own templates or compile functions. Compiling these directives results in an infinite loop and
 6987 * stack overflow errors.
 6988 *
 6989 * This can be avoided by manually using $compile in the postLink function to imperatively compile
 6990 * a directive's template instead of relying on automatic template compilation via `template` or
 6991 * `templateUrl` declaration or manual compilation inside the compile function.
 6992 * </div>
 6993 *
 6994 * <div class="alert alert-danger">
 6995 * **Note:** The `transclude` function that is passed to the compile function is deprecated, as it
 6996 *   e.g. does not know about the right outer scope. Please use the transclude function that is passed
 6997 *   to the link function instead.
 6998 * </div>
 6999
 7000 * A compile function can have a return value which can be either a function or an object.
 7001 *
 7002 * * returning a (post-link) function - is equivalent to registering the linking function via the
 7003 *   `link` property of the config object when the compile function is empty.
 7004 *
 7005 * * returning an object with function(s) registered via `pre` and `post` properties - allows you to
 7006 *   control when a linking function should be called during the linking phase. See info about
 7007 *   pre-linking and post-linking functions below.
 7008 *
 7009 *
 7010 * #### `link`
 7011 * This property is used only if the `compile` property is not defined.
 7012 *
 7013 * ```js
 7014 *   function link(scope, iElement, iAttrs, controller, transcludeFn) { ... }
 7015 * ```
 7016 *
 7017 * The link function is responsible for registering DOM listeners as well as updating the DOM. It is
 7018 * executed after the template has been cloned. This is where most of the directive logic will be
 7019 * put.
 7020 *
 7021 *   * `scope` - {@link ng.$rootScope.Scope Scope} - The scope to be used by the
 7022 *     directive for registering {@link ng.$rootScope.Scope#$watch watches}.
 7023 *
 7024 *   * `iElement` - instance element - The element where the directive is to be used. It is safe to
 7025 *     manipulate the children of the element only in `postLink` function since the children have
 7026 *     already been linked.
 7027 *
 7028 *   * `iAttrs` - instance attributes - Normalized list of attributes declared on this element shared
 7029 *     between all directive linking functions.
 7030 *
 7031 *   * `controller` - the directive's required controller instance(s) - Instances are shared
 7032 *     among all directives, which allows the directives to use the controllers as a communication
 7033 *     channel. The exact value depends on the directive's `require` property:
 7034 *       * no controller(s) required: the directive's own controller, or `undefined` if it doesn't have one
 7035 *       * `string`: the controller instance
 7036 *       * `array`: array of controller instances
 7037 *
 7038 *     If a required controller cannot be found, and it is optional, the instance is `null`,
 7039 *     otherwise the {@link error:$compile:ctreq Missing Required Controller} error is thrown.
 7040 *
 7041 *     Note that you can also require the directive's own controller - it will be made available like
 7042 *     any other controller.
 7043 *
 7044 *   * `transcludeFn` - A transclude linking function pre-bound to the correct transclusion scope.
 7045 *     This is the same as the `$transclude`
 7046 *     parameter of directive controllers, see there for details.
 7047 *     `function([scope], cloneLinkingFn, futureParentElement)`.
 7048 *
 7049 * #### Pre-linking function
 7050 *
 7051 * Executed before the child elements are linked. Not safe to do DOM transformation since the
 7052 * compiler linking function will fail to locate the correct elements for linking.
 7053 *
 7054 * #### Post-linking function
 7055 *
 7056 * Executed after the child elements are linked.
 7057 *
 7058 * Note that child elements that contain `templateUrl` directives will not have been compiled
 7059 * and linked since they are waiting for their template to load asynchronously and their own
 7060 * compilation and linking has been suspended until that occurs.
 7061 *
 7062 * It is safe to do DOM transformation in the post-linking function on elements that are not waiting
 7063 * for their async templates to be resolved.
 7064 *
 7065 *
 7066 * ### Transclusion
 7067 *
 7068 * Transclusion is the process of extracting a collection of DOM elements from one part of the DOM and
 7069 * copying them to another part of the DOM, while maintaining their connection to the original AngularJS
 7070 * scope from where they were taken.
 7071 *
 7072 * Transclusion is used (often with {@link ngTransclude}) to insert the
 7073 * original contents of a directive's element into a specified place in the template of the directive.
 7074 * The benefit of transclusion, over simply moving the DOM elements manually, is that the transcluded
 7075 * content has access to the properties on the scope from which it was taken, even if the directive
 7076 * has isolated scope.
 7077 * See the {@link guide/directive#creating-a-directive-that-wraps-other-elements Directives Guide}.
 7078 *
 7079 * This makes it possible for the widget to have private state for its template, while the transcluded
 7080 * content has access to its originating scope.
 7081 *
 7082 * <div class="alert alert-warning">
 7083 * **Note:** When testing an element transclude directive you must not place the directive at the root of the
 7084 * DOM fragment that is being compiled. See {@link guide/unit-testing#testing-transclusion-directives
 7085 * Testing Transclusion Directives}.
 7086 * </div>
 7087 *
 7088 * There are three kinds of transclusion depending upon whether you want to transclude just the contents of the
 7089 * directive's element, the entire element or multiple parts of the element contents:
 7090 *
 7091 * * `true` - transclude the content (i.e. the child nodes) of the directive's element.
 7092 * * `'element'` - transclude the whole of the directive's element including any directives on this
 7093 *   element that defined at a lower priority than this directive. When used, the `template`
 7094 *   property is ignored.
 7095 * * **`{...}` (an object hash):** - map elements of the content onto transclusion "slots" in the template.
 7096 *
 7097 * **Mult-slot transclusion** is declared by providing an object for the `transclude` property.
 7098 *
 7099 * This object is a map where the keys are the name of the slot to fill and the value is an element selector
 7100 * used to match the HTML to the slot. The element selector should be in normalized form (e.g. `myElement`)
 7101 * and will match the standard element variants (e.g. `my-element`, `my:element`, `data-my-element`, etc).
 7102 *
 7103 * For further information check out the guide on {@link guide/directive#matching-directives Matching Directives}
 7104 *
 7105 * If the element selector is prefixed with a `?` then that slot is optional.
 7106 *
 7107 * For example, the transclude object `{ slotA: '?myCustomElement' }` maps `<my-custom-element>` elements to
 7108 * the `slotA` slot, which can be accessed via the `$transclude` function or via the {@link ngTransclude} directive.
 7109 *
 7110 * Slots that are not marked as optional (`?`) will trigger a compile time error if there are no matching elements
 7111 * in the transclude content. If you wish to know if an optional slot was filled with content, then you can call
 7112 * `$transclude.isSlotFilled(slotName)` on the transclude function passed to the directive's link function and
 7113 * injectable into the directive's controller.
 7114 *
 7115 *
 7116 * #### Transclusion Functions
 7117 *
 7118 * When a directive requests transclusion, the compiler extracts its contents and provides a **transclusion
 7119 * function** to the directive's `link` function and `controller`. This transclusion function is a special
 7120 * **linking function** that will return the compiled contents linked to a new transclusion scope.
 7121 *
 7122 * <div class="alert alert-info">
 7123 * If you are just using {@link ngTransclude} then you don't need to worry about this function, since
 7124 * ngTransclude will deal with it for us.
 7125 * </div>
 7126 *
 7127 * If you want to manually control the insertion and removal of the transcluded content in your directive
 7128 * then you must use this transclude function. When you call a transclude function it returns a a jqLite/JQuery
 7129 * object that contains the compiled DOM, which is linked to the correct transclusion scope.
 7130 *
 7131 * When you call a transclusion function you can pass in a **clone attach function**. This function accepts
 7132 * two parameters, `function(clone, scope) { ... }`, where the `clone` is a fresh compiled copy of your transcluded
 7133 * content and the `scope` is the newly created transclusion scope, to which the clone is bound.
 7134 *
 7135 * <div class="alert alert-info">
 7136 * **Best Practice**: Always provide a `cloneFn` (clone attach function) when you call a transclude function
 7137 * since you then get a fresh clone of the original DOM and also have access to the new transclusion scope.
 7138 * </div>
 7139 *
 7140 * It is normal practice to attach your transcluded content (`clone`) to the DOM inside your **clone
 7141 * attach function**:
 7142 *
 7143 * ```js
 7144 * var transcludedContent, transclusionScope;
 7145 *
 7146 * $transclude(function(clone, scope) {
 7147 *   element.append(clone);
 7148 *   transcludedContent = clone;
 7149 *   transclusionScope = scope;
 7150 * });
 7151 * ```
 7152 *
 7153 * Later, if you want to remove the transcluded content from your DOM then you should also destroy the
 7154 * associated transclusion scope:
 7155 *
 7156 * ```js
 7157 * transcludedContent.remove();
 7158 * transclusionScope.$destroy();
 7159 * ```
 7160 *
 7161 * <div class="alert alert-info">
 7162 * **Best Practice**: if you intend to add and remove transcluded content manually in your directive
 7163 * (by calling the transclude function to get the DOM and calling `element.remove()` to remove it),
 7164 * then you are also responsible for calling `$destroy` on the transclusion scope.
 7165 * </div>
 7166 *
 7167 * The built-in DOM manipulation directives, such as {@link ngIf}, {@link ngSwitch} and {@link ngRepeat}
 7168 * automatically destroy their transcluded clones as necessary so you do not need to worry about this if
 7169 * you are simply using {@link ngTransclude} to inject the transclusion into your directive.
 7170 *
 7171 *
 7172 * #### Transclusion Scopes
 7173 *
 7174 * When you call a transclude function it returns a DOM fragment that is pre-bound to a **transclusion
 7175 * scope**. This scope is special, in that it is a child of the directive's scope (and so gets destroyed
 7176 * when the directive's scope gets destroyed) but it inherits the properties of the scope from which it
 7177 * was taken.
 7178 *
 7179 * For example consider a directive that uses transclusion and isolated scope. The DOM hierarchy might look
 7180 * like this:
 7181 *
 7182 * ```html
 7183 * <div ng-app>
 7184 *   <div isolate>
 7185 *     <div transclusion>
 7186 *     </div>
 7187 *   </div>
 7188 * </div>
 7189 * ```
 7190 *
 7191 * The `$parent` scope hierarchy will look like this:
 7192 *
 7193   ```
 7194   - $rootScope
 7195     - isolate
 7196       - transclusion
 7197   ```
 7198 *
 7199 * but the scopes will inherit prototypically from different scopes to their `$parent`.
 7200 *
 7201   ```
 7202   - $rootScope
 7203     - transclusion
 7204   - isolate
 7205   ```
 7206 *
 7207 *
 7208 * ### Attributes
 7209 *
 7210 * The {@link ng.$compile.directive.Attributes Attributes} object - passed as a parameter in the
 7211 * `link()` or `compile()` functions. It has a variety of uses.
 7212 *
 7213 * * *Accessing normalized attribute names:* Directives like 'ngBind' can be expressed in many ways:
 7214 *   'ng:bind', `data-ng-bind`, or 'x-ng-bind'. The attributes object allows for normalized access
 7215 *   to the attributes.
 7216 *
 7217 * * *Directive inter-communication:* All directives share the same instance of the attributes
 7218 *   object which allows the directives to use the attributes object as inter directive
 7219 *   communication.
 7220 *
 7221 * * *Supports interpolation:* Interpolation attributes are assigned to the attribute object
 7222 *   allowing other directives to read the interpolated value.
 7223 *
 7224 * * *Observing interpolated attributes:* Use `$observe` to observe the value changes of attributes
 7225 *   that contain interpolation (e.g. `src="{{bar}}"`). Not only is this very efficient but it's also
 7226 *   the only way to easily get the actual value because during the linking phase the interpolation
 7227 *   hasn't been evaluated yet and so the value is at this time set to `undefined`.
 7228 *
 7229 * ```js
 7230 * function linkingFn(scope, elm, attrs, ctrl) {
 7231 *   // get the attribute value
 7232 *   console.log(attrs.ngModel);
 7233 *
 7234 *   // change the attribute
 7235 *   attrs.$set('ngModel', 'new value');
 7236 *
 7237 *   // observe changes to interpolated attribute
 7238 *   attrs.$observe('ngModel', function(value) {
 7239 *     console.log('ngModel has changed value to ' + value);
 7240 *   });
 7241 * }
 7242 * ```
 7243 *
 7244 * ## Example
 7245 *
 7246 * <div class="alert alert-warning">
 7247 * **Note**: Typically directives are registered with `module.directive`. The example below is
 7248 * to illustrate how `$compile` works.
 7249 * </div>
 7250 *
 7251 <example module="compileExample">
 7252   <file name="index.html">
 7253    <script>
 7254      angular.module('compileExample', [], function($compileProvider) {
 7255        // configure new 'compile' directive by passing a directive
 7256        // factory function. The factory function injects the '$compile'
 7257        $compileProvider.directive('compile', function($compile) {
 7258          // directive factory creates a link function
 7259          return function(scope, element, attrs) {
 7260            scope.$watch(
 7261              function(scope) {
 7262                 // watch the 'compile' expression for changes
 7263                return scope.$eval(attrs.compile);
 7264              },
 7265              function(value) {
 7266                // when the 'compile' expression changes
 7267                // assign it into the current DOM
 7268                element.html(value);
 7269
 7270                // compile the new DOM and link it to the current
 7271                // scope.
 7272                // NOTE: we only compile .childNodes so that
 7273                // we don't get into infinite loop compiling ourselves
 7274                $compile(element.contents())(scope);
 7275              }
 7276            );
 7277          };
 7278        });
 7279      })
 7280      .controller('GreeterController', ['$scope', function($scope) {
 7281        $scope.name = 'Angular';
 7282        $scope.html = 'Hello {{name}}';
 7283      }]);
 7284    </script>
 7285    <div ng-controller="GreeterController">
 7286      <input ng-model="name"> <br/>
 7287      <textarea ng-model="html"></textarea> <br/>
 7288      <div compile="html"></div>
 7289    </div>
 7290   </file>
 7291   <file name="protractor.js" type="protractor">
 7292     it('should auto compile', function() {
 7293       var textarea = $('textarea');
 7294       var output = $('div[compile]');
 7295       // The initial state reads 'Hello Angular'.
 7296       expect(output.getText()).toBe('Hello Angular');
 7297       textarea.clear();
 7298       textarea.sendKeys('{{name}}!');
 7299       expect(output.getText()).toBe('Angular!');
 7300     });
 7301   </file>
 7302 </example>
 7303
 7304 *
 7305 *
 7306 * @param {string|DOMElement} element Element or HTML string to compile into a template function.
 7307 * @param {function(angular.Scope, cloneAttachFn=)} transclude function available to directives - DEPRECATED.
 7308 *
 7309 * <div class="alert alert-danger">
 7310 * **Note:** Passing a `transclude` function to the $compile function is deprecated, as it
 7311 *   e.g. will not use the right outer scope. Please pass the transclude function as a
 7312 *   `parentBoundTranscludeFn` to the link function instead.
 7313 * </div>
 7314 *
 7315 * @param {number} maxPriority only apply directives lower than given priority (Only effects the
 7316 *                 root element(s), not their children)
 7317 * @returns {function(scope, cloneAttachFn=, options=)} a link function which is used to bind template
 7318 * (a DOM element/tree) to a scope. Where:
 7319 *
 7320 *  * `scope` - A {@link ng.$rootScope.Scope Scope} to bind to.
 7321 *  * `cloneAttachFn` - If `cloneAttachFn` is provided, then the link function will clone the
 7322 *  `template` and call the `cloneAttachFn` function allowing the caller to attach the
 7323 *  cloned elements to the DOM document at the appropriate place. The `cloneAttachFn` is
 7324 *  called as: <br/> `cloneAttachFn(clonedElement, scope)` where:
 7325 *
 7326 *      * `clonedElement` - is a clone of the original `element` passed into the compiler.
 7327 *      * `scope` - is the current scope with which the linking function is working with.
 7328 *
 7329 *  * `options` - An optional object hash with linking options. If `options` is provided, then the following
 7330 *  keys may be used to control linking behavior:
 7331 *
 7332 *      * `parentBoundTranscludeFn` - the transclude function made available to
 7333 *        directives; if given, it will be passed through to the link functions of
 7334 *        directives found in `element` during compilation.
 7335 *      * `transcludeControllers` - an object hash with keys that map controller names
 7336 *        to a hash with the key `instance`, which maps to the controller instance;
 7337 *        if given, it will make the controllers available to directives on the compileNode:
 7338 *        ```
 7339 *        {
 7340 *          parent: {
 7341 *            instance: parentControllerInstance
 7342 *          }
 7343 *        }
 7344 *        ```
 7345 *      * `futureParentElement` - defines the parent to which the `cloneAttachFn` will add
 7346 *        the cloned elements; only needed for transcludes that are allowed to contain non html
 7347 *        elements (e.g. SVG elements). See also the directive.controller property.
 7348 *
 7349 * Calling the linking function returns the element of the template. It is either the original
 7350 * element passed in, or the clone of the element if the `cloneAttachFn` is provided.
 7351 *
 7352 * After linking the view is not updated until after a call to $digest which typically is done by
 7353 * Angular automatically.
 7354 *
 7355 * If you need access to the bound view, there are two ways to do it:
 7356 *
 7357 * - If you are not asking the linking function to clone the template, create the DOM element(s)
 7358 *   before you send them to the compiler and keep this reference around.
 7359 *   ```js
 7360 *     var element = $compile('<p>{{total}}</p>')(scope);
 7361 *   ```
 7362 *
 7363 * - if on the other hand, you need the element to be cloned, the view reference from the original
 7364 *   example would not point to the clone, but rather to the original template that was cloned. In
 7365 *   this case, you can access the clone via the cloneAttachFn:
 7366 *   ```js
 7367 *     var templateElement = angular.element('<p>{{total}}</p>'),
 7368 *         scope = ....;
 7369 *
 7370 *     var clonedElement = $compile(templateElement)(scope, function(clonedElement, scope) {
 7371 *       //attach the clone to DOM document at the right place
 7372 *     });
 7373 *
 7374 *     //now we have reference to the cloned DOM via `clonedElement`
 7375 *   ```
 7376 *
 7377 *
 7378 * For information on how the compiler works, see the
 7379 * {@link guide/compiler Angular HTML Compiler} section of the Developer Guide.
 7380 */
 7381
 7382var $compileMinErr = minErr('$compile');
 7383
 7384/**
 7385 * @ngdoc provider
 7386 * @name $compileProvider
 7387 *
 7388 * @description
 7389 */
 7390$CompileProvider.$inject = ['$provide', '$$sanitizeUriProvider'];
 7391function $CompileProvider($provide, $$sanitizeUriProvider) {
 7392  var hasDirectives = {},
 7393      Suffix = 'Directive',
 7394      COMMENT_DIRECTIVE_REGEXP = /^\s*directive\:\s*([\w\-]+)\s+(.*)$/,
 7395      CLASS_DIRECTIVE_REGEXP = /(([\w\-]+)(?:\:([^;]+))?;?)/,
 7396      ALL_OR_NOTHING_ATTRS = makeMap('ngSrc,ngSrcset,src,srcset'),
 7397      REQUIRE_PREFIX_REGEXP = /^(?:(\^\^?)?(\?)?(\^\^?)?)?/;
 7398
 7399  // Ref: http://developers.whatwg.org/webappapis.html#event-handler-idl-attributes
 7400  // The assumption is that future DOM event attribute names will begin with
 7401  // 'on' and be composed of only English letters.
 7402  var EVENT_HANDLER_ATTR_REGEXP = /^(on[a-z]+|formaction)$/;
 7403  var bindingCache = createMap();
 7404
 7405  function parseIsolateBindings(scope, directiveName, isController) {
 7406    var LOCAL_REGEXP = /^\s*([@&<]|=(\*?))(\??)\s*(\w*)\s*$/;
 7407
 7408    var bindings = {};
 7409
 7410    forEach(scope, function(definition, scopeName) {
 7411      if (definition in bindingCache) {
 7412        bindings[scopeName] = bindingCache[definition];
 7413        return;
 7414      }
 7415      var match = definition.match(LOCAL_REGEXP);
 7416
 7417      if (!match) {
 7418        throw $compileMinErr('iscp',
 7419            "Invalid {3} for directive '{0}'." +
 7420            " Definition: {... {1}: '{2}' ...}",
 7421            directiveName, scopeName, definition,
 7422            (isController ? "controller bindings definition" :
 7423            "isolate scope definition"));
 7424      }
 7425
 7426      bindings[scopeName] = {
 7427        mode: match[1][0],
 7428        collection: match[2] === '*',
 7429        optional: match[3] === '?',
 7430        attrName: match[4] || scopeName
 7431      };
 7432      if (match[4]) {
 7433        bindingCache[definition] = bindings[scopeName];
 7434      }
 7435    });
 7436
 7437    return bindings;
 7438  }
 7439
 7440  function parseDirectiveBindings(directive, directiveName) {
 7441    var bindings = {
 7442      isolateScope: null,
 7443      bindToController: null
 7444    };
 7445    if (isObject(directive.scope)) {
 7446      if (directive.bindToController === true) {
 7447        bindings.bindToController = parseIsolateBindings(directive.scope,
 7448                                                         directiveName, true);
 7449        bindings.isolateScope = {};
 7450      } else {
 7451        bindings.isolateScope = parseIsolateBindings(directive.scope,
 7452                                                     directiveName, false);
 7453      }
 7454    }
 7455    if (isObject(directive.bindToController)) {
 7456      bindings.bindToController =
 7457          parseIsolateBindings(directive.bindToController, directiveName, true);
 7458    }
 7459    if (isObject(bindings.bindToController)) {
 7460      var controller = directive.controller;
 7461      var controllerAs = directive.controllerAs;
 7462      if (!controller) {
 7463        // There is no controller, there may or may not be a controllerAs property
 7464        throw $compileMinErr('noctrl',
 7465              "Cannot bind to controller without directive '{0}'s controller.",
 7466              directiveName);
 7467      } else if (!identifierForController(controller, controllerAs)) {
 7468        // There is a controller, but no identifier or controllerAs property
 7469        throw $compileMinErr('noident',
 7470              "Cannot bind to controller without identifier for directive '{0}'.",
 7471              directiveName);
 7472      }
 7473    }
 7474    return bindings;
 7475  }
 7476
 7477  function assertValidDirectiveName(name) {
 7478    var letter = name.charAt(0);
 7479    if (!letter || letter !== lowercase(letter)) {
 7480      throw $compileMinErr('baddir', "Directive/Component name '{0}' is invalid. The first character must be a lowercase letter", name);
 7481    }
 7482    if (name !== name.trim()) {
 7483      throw $compileMinErr('baddir',
 7484            "Directive/Component name '{0}' is invalid. The name should not contain leading or trailing whitespaces",
 7485            name);
 7486    }
 7487  }
 7488
 7489  /**
 7490   * @ngdoc method
 7491   * @name $compileProvider#directive
 7492   * @kind function
 7493   *
 7494   * @description
 7495   * Register a new directive with the compiler.
 7496   *
 7497   * @param {string|Object} name Name of the directive in camel-case (i.e. <code>ngBind</code> which
 7498   *    will match as <code>ng-bind</code>), or an object map of directives where the keys are the
 7499   *    names and the values are the factories.
 7500   * @param {Function|Array} directiveFactory An injectable directive factory function. See the
 7501   *    {@link guide/directive directive guide} and the {@link $compile compile API} for more info.
 7502   * @returns {ng.$compileProvider} Self for chaining.
 7503   */
 7504  this.directive = function registerDirective(name, directiveFactory) {
 7505    assertNotHasOwnProperty(name, 'directive');
 7506    if (isString(name)) {
 7507      assertValidDirectiveName(name);
 7508      assertArg(directiveFactory, 'directiveFactory');
 7509      if (!hasDirectives.hasOwnProperty(name)) {
 7510        hasDirectives[name] = [];
 7511        $provide.factory(name + Suffix, ['$injector', '$exceptionHandler',
 7512          function($injector, $exceptionHandler) {
 7513            var directives = [];
 7514            forEach(hasDirectives[name], function(directiveFactory, index) {
 7515              try {
 7516                var directive = $injector.invoke(directiveFactory);
 7517                if (isFunction(directive)) {
 7518                  directive = { compile: valueFn(directive) };
 7519                } else if (!directive.compile && directive.link) {
 7520                  directive.compile = valueFn(directive.link);
 7521                }
 7522                directive.priority = directive.priority || 0;
 7523                directive.index = index;
 7524                directive.name = directive.name || name;
 7525                directive.require = directive.require || (directive.controller && directive.name);
 7526                directive.restrict = directive.restrict || 'EA';
 7527                directive.$$moduleName = directiveFactory.$$moduleName;
 7528                directives.push(directive);
 7529              } catch (e) {
 7530                $exceptionHandler(e);
 7531              }
 7532            });
 7533            return directives;
 7534          }]);
 7535      }
 7536      hasDirectives[name].push(directiveFactory);
 7537    } else {
 7538      forEach(name, reverseParams(registerDirective));
 7539    }
 7540    return this;
 7541  };
 7542
 7543  /**
 7544   * @ngdoc method
 7545   * @name $compileProvider#component
 7546   * @module ng
 7547   * @param {string} name Name of the component in camelCase (i.e. `myComp` which will match `<my-comp>`)
 7548   * @param {Object} options Component definition object (a simplified
 7549   *    {@link ng.$compile#directive-definition-object directive definition object}),
 7550   *    with the following properties (all optional):
 7551   *
 7552   *    - `controller` – `{(string|function()=}` – controller constructor function that should be
 7553   *      associated with newly created scope or the name of a {@link ng.$compile#-controller-
 7554   *      registered controller} if passed as a string. An empty `noop` function by default.
 7555   *    - `controllerAs` – `{string=}` – identifier name for to reference the controller in the component's scope.
 7556   *      If present, the controller will be published to scope under the `controllerAs` name.
 7557   *      If not present, this will default to be `$ctrl`.
 7558   *    - `template` – `{string=|function()=}` – html template as a string or a function that
 7559   *      returns an html template as a string which should be used as the contents of this component.
 7560   *      Empty string by default.
 7561   *
 7562   *      If `template` is a function, then it is {@link auto.$injector#invoke injected} with
 7563   *      the following locals:
 7564   *
 7565   *      - `$element` - Current element
 7566   *      - `$attrs` - Current attributes object for the element
 7567   *
 7568   *    - `templateUrl` – `{string=|function()=}` – path or function that returns a path to an html
 7569   *      template that should be used  as the contents of this component.
 7570   *
 7571   *      If `templateUrl` is a function, then it is {@link auto.$injector#invoke injected} with
 7572   *      the following locals:
 7573   *
 7574   *      - `$element` - Current element
 7575   *      - `$attrs` - Current attributes object for the element
 7576   *
 7577   *    - `bindings` – `{object=}` – defines bindings between DOM attributes and component properties.
 7578   *      Component properties are always bound to the component controller and not to the scope.
 7579   *      See {@link ng.$compile#-bindtocontroller- `bindToController`}.
 7580   *    - `transclude` – `{boolean=}` – whether {@link $compile#transclusion content transclusion} is enabled.
 7581   *      Disabled by default.
 7582   *    - `$...` – additional properties to attach to the directive factory function and the controller
 7583   *      constructor function. (This is used by the component router to annotate)
 7584   *
 7585   * @returns {ng.$compileProvider} the compile provider itself, for chaining of function calls.
 7586   * @description
 7587   * Register a **component definition** with the compiler. This is a shorthand for registering a special
 7588   * type of directive, which represents a self-contained UI component in your application. Such components
 7589   * are always isolated (i.e. `scope: {}`) and are always restricted to elements (i.e. `restrict: 'E'`).
 7590   *
 7591   * Component definitions are very simple and do not require as much configuration as defining general
 7592   * directives. Component definitions usually consist only of a template and a controller backing it.
 7593   *
 7594   * In order to make the definition easier, components enforce best practices like use of `controllerAs`,
 7595   * `bindToController`. They always have **isolate scope** and are restricted to elements.
 7596   *
 7597   * Here are a few examples of how you would usually define components:
 7598   *
 7599   * ```js
 7600   *   var myMod = angular.module(...);
 7601   *   myMod.component('myComp', {
 7602   *     template: '<div>My name is {{$ctrl.name}}</div>',
 7603   *     controller: function() {
 7604   *       this.name = 'shahar';
 7605   *     }
 7606   *   });
 7607   *
 7608   *   myMod.component('myComp', {
 7609   *     template: '<div>My name is {{$ctrl.name}}</div>',
 7610   *     bindings: {name: '@'}
 7611   *   });
 7612   *
 7613   *   myMod.component('myComp', {
 7614   *     templateUrl: 'views/my-comp.html',
 7615   *     controller: 'MyCtrl',
 7616   *     controllerAs: 'ctrl',
 7617   *     bindings: {name: '@'}
 7618   *   });
 7619   *
 7620   * ```
 7621   * For more examples, and an in-depth guide, see the {@link guide/component component guide}.
 7622   *
 7623   * <br />
 7624   * See also {@link ng.$compileProvider#directive $compileProvider.directive()}.
 7625   */
 7626  this.component = function registerComponent(name, options) {
 7627    var controller = options.controller || noop;
 7628
 7629    function factory($injector) {
 7630      function makeInjectable(fn) {
 7631        if (isFunction(fn) || isArray(fn)) {
 7632          return function(tElement, tAttrs) {
 7633            return $injector.invoke(fn, this, {$element: tElement, $attrs: tAttrs});
 7634          };
 7635        } else {
 7636          return fn;
 7637        }
 7638      }
 7639
 7640      var template = (!options.template && !options.templateUrl ? '' : options.template);
 7641      return {
 7642        controller: controller,
 7643        controllerAs: identifierForController(options.controller) || options.controllerAs || '$ctrl',
 7644        template: makeInjectable(template),
 7645        templateUrl: makeInjectable(options.templateUrl),
 7646        transclude: options.transclude,
 7647        scope: {},
 7648        bindToController: options.bindings || {},
 7649        restrict: 'E',
 7650        require: options.require
 7651      };
 7652    }
 7653
 7654    // Copy any annotation properties (starting with $) over to the factory function
 7655    // These could be used by libraries such as the new component router
 7656    forEach(options, function(val, key) {
 7657      if (key.charAt(0) === '$') {
 7658        factory[key] = val;
 7659        controller[key] = val;
 7660      }
 7661    });
 7662
 7663    factory.$inject = ['$injector'];
 7664
 7665    return this.directive(name, factory);
 7666  };
 7667
 7668
 7669  /**
 7670   * @ngdoc method
 7671   * @name $compileProvider#aHrefSanitizationWhitelist
 7672   * @kind function
 7673   *
 7674   * @description
 7675   * Retrieves or overrides the default regular expression that is used for whitelisting of safe
 7676   * urls during a[href] sanitization.
 7677   *
 7678   * The sanitization is a security measure aimed at preventing XSS attacks via html links.
 7679   *
 7680   * Any url about to be assigned to a[href] via data-binding is first normalized and turned into
 7681   * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist`
 7682   * regular expression. If a match is found, the original url is written into the dom. Otherwise,
 7683   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.
 7684   *
 7685   * @param {RegExp=} regexp New regexp to whitelist urls with.
 7686   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for
 7687   *    chaining otherwise.
 7688   */
 7689  this.aHrefSanitizationWhitelist = function(regexp) {
 7690    if (isDefined(regexp)) {
 7691      $$sanitizeUriProvider.aHrefSanitizationWhitelist(regexp);
 7692      return this;
 7693    } else {
 7694      return $$sanitizeUriProvider.aHrefSanitizationWhitelist();
 7695    }
 7696  };
 7697
 7698
 7699  /**
 7700   * @ngdoc method
 7701   * @name $compileProvider#imgSrcSanitizationWhitelist
 7702   * @kind function
 7703   *
 7704   * @description
 7705   * Retrieves or overrides the default regular expression that is used for whitelisting of safe
 7706   * urls during img[src] sanitization.
 7707   *
 7708   * The sanitization is a security measure aimed at prevent XSS attacks via html links.
 7709   *
 7710   * Any url about to be assigned to img[src] via data-binding is first normalized and turned into
 7711   * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist`
 7712   * regular expression. If a match is found, the original url is written into the dom. Otherwise,
 7713   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.
 7714   *
 7715   * @param {RegExp=} regexp New regexp to whitelist urls with.
 7716   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for
 7717   *    chaining otherwise.
 7718   */
 7719  this.imgSrcSanitizationWhitelist = function(regexp) {
 7720    if (isDefined(regexp)) {
 7721      $$sanitizeUriProvider.imgSrcSanitizationWhitelist(regexp);
 7722      return this;
 7723    } else {
 7724      return $$sanitizeUriProvider.imgSrcSanitizationWhitelist();
 7725    }
 7726  };
 7727
 7728  /**
 7729   * @ngdoc method
 7730   * @name  $compileProvider#debugInfoEnabled
 7731   *
 7732   * @param {boolean=} enabled update the debugInfoEnabled state if provided, otherwise just return the
 7733   * current debugInfoEnabled state
 7734   * @returns {*} current value if used as getter or itself (chaining) if used as setter
 7735   *
 7736   * @kind function
 7737   *
 7738   * @description
 7739   * Call this method to enable/disable various debug runtime information in the compiler such as adding
 7740   * binding information and a reference to the current scope on to DOM elements.
 7741   * If enabled, the compiler will add the following to DOM elements that have been bound to the scope
 7742   * * `ng-binding` CSS class
 7743   * * `$binding` data property containing an array of the binding expressions
 7744   *
 7745   * You may want to disable this in production for a significant performance boost. See
 7746   * {@link guide/production#disabling-debug-data Disabling Debug Data} for more.
 7747   *
 7748   * The default value is true.
 7749   */
 7750  var debugInfoEnabled = true;
 7751  this.debugInfoEnabled = function(enabled) {
 7752    if (isDefined(enabled)) {
 7753      debugInfoEnabled = enabled;
 7754      return this;
 7755    }
 7756    return debugInfoEnabled;
 7757  };
 7758
 7759
 7760  var TTL = 10;
 7761  /**
 7762   * @ngdoc method
 7763   * @name $compileProvider#onChangesTtl
 7764   * @description
 7765   *
 7766   * Sets the number of times `$onChanges` hooks can trigger new changes before giving up and
 7767   * assuming that the model is unstable.
 7768   *
 7769   * The current default is 10 iterations.
 7770   *
 7771   * In complex applications it's possible that dependencies between `$onChanges` hooks and bindings will result
 7772   * in several iterations of calls to these hooks. However if an application needs more than the default 10
 7773   * iterations to stabilize then you should investigate what is causing the model to continuously change during
 7774   * the `$onChanges` hook execution.
 7775   *
 7776   * Increasing the TTL could have performance implications, so you should not change it without proper justification.
 7777   *
 7778   * @param {number} limit The number of `$onChanges` hook iterations.
 7779   * @returns {number|object} the current limit (or `this` if called as a setter for chaining)
 7780   */
 7781  this.onChangesTtl = function(value) {
 7782    if (arguments.length) {
 7783      TTL = value;
 7784      return this;
 7785    }
 7786    return TTL;
 7787  };
 7788
 7789  this.$get = [
 7790            '$injector', '$interpolate', '$exceptionHandler', '$templateRequest', '$parse',
 7791            '$controller', '$rootScope', '$sce', '$animate', '$$sanitizeUri',
 7792    function($injector,   $interpolate,   $exceptionHandler,   $templateRequest,   $parse,
 7793             $controller,   $rootScope,   $sce,   $animate,   $$sanitizeUri) {
 7794
 7795    var SIMPLE_ATTR_NAME = /^\w/;
 7796    var specialAttrHolder = document.createElement('div');
 7797
 7798
 7799
 7800    var onChangesTtl = TTL;
 7801    // The onChanges hooks should all be run together in a single digest
 7802    // When changes occur, the call to trigger their hooks will be added to this queue
 7803    var onChangesQueue;
 7804
 7805    // This function is called in a $$postDigest to trigger all the onChanges hooks in a single digest
 7806    function flushOnChangesQueue() {
 7807      try {
 7808        if (!(--onChangesTtl)) {
 7809          // We have hit the TTL limit so reset everything
 7810          onChangesQueue = undefined;
 7811          throw $compileMinErr('infchng', '{0} $onChanges() iterations reached. Aborting!\n', TTL);
 7812        }
 7813        // We must run this hook in an apply since the $$postDigest runs outside apply
 7814        $rootScope.$apply(function() {
 7815          for (var i = 0, ii = onChangesQueue.length; i < ii; ++i) {
 7816            onChangesQueue[i]();
 7817          }
 7818          // Reset the queue to trigger a new schedule next time there is a change
 7819          onChangesQueue = undefined;
 7820        });
 7821      } finally {
 7822        onChangesTtl++;
 7823      }
 7824    }
 7825
 7826
 7827    function Attributes(element, attributesToCopy) {
 7828      if (attributesToCopy) {
 7829        var keys = Object.keys(attributesToCopy);
 7830        var i, l, key;
 7831
 7832        for (i = 0, l = keys.length; i < l; i++) {
 7833          key = keys[i];
 7834          this[key] = attributesToCopy[key];
 7835        }
 7836      } else {
 7837        this.$attr = {};
 7838      }
 7839
 7840      this.$$element = element;
 7841    }
 7842
 7843    Attributes.prototype = {
 7844      /**
 7845       * @ngdoc method
 7846       * @name $compile.directive.Attributes#$normalize
 7847       * @kind function
 7848       *
 7849       * @description
 7850       * Converts an attribute name (e.g. dash/colon/underscore-delimited string, optionally prefixed with `x-` or
 7851       * `data-`) to its normalized, camelCase form.
 7852       *
 7853       * Also there is special case for Moz prefix starting with upper case letter.
 7854       *
 7855       * For further information check out the guide on {@link guide/directive#matching-directives Matching Directives}
 7856       *
 7857       * @param {string} name Name to normalize
 7858       */
 7859      $normalize: directiveNormalize,
 7860
 7861
 7862      /**
 7863       * @ngdoc method
 7864       * @name $compile.directive.Attributes#$addClass
 7865       * @kind function
 7866       *
 7867       * @description
 7868       * Adds the CSS class value specified by the classVal parameter to the element. If animations
 7869       * are enabled then an animation will be triggered for the class addition.
 7870       *
 7871       * @param {string} classVal The className value that will be added to the element
 7872       */
 7873      $addClass: function(classVal) {
 7874        if (classVal && classVal.length > 0) {
 7875          $animate.addClass(this.$$element, classVal);
 7876        }
 7877      },
 7878
 7879      /**
 7880       * @ngdoc method
 7881       * @name $compile.directive.Attributes#$removeClass
 7882       * @kind function
 7883       *
 7884       * @description
 7885       * Removes the CSS class value specified by the classVal parameter from the element. If
 7886       * animations are enabled then an animation will be triggered for the class removal.
 7887       *
 7888       * @param {string} classVal The className value that will be removed from the element
 7889       */
 7890      $removeClass: function(classVal) {
 7891        if (classVal && classVal.length > 0) {
 7892          $animate.removeClass(this.$$element, classVal);
 7893        }
 7894      },
 7895
 7896      /**
 7897       * @ngdoc method
 7898       * @name $compile.directive.Attributes#$updateClass
 7899       * @kind function
 7900       *
 7901       * @description
 7902       * Adds and removes the appropriate CSS class values to the element based on the difference
 7903       * between the new and old CSS class values (specified as newClasses and oldClasses).
 7904       *
 7905       * @param {string} newClasses The current CSS className value
 7906       * @param {string} oldClasses The former CSS className value
 7907       */
 7908      $updateClass: function(newClasses, oldClasses) {
 7909        var toAdd = tokenDifference(newClasses, oldClasses);
 7910        if (toAdd && toAdd.length) {
 7911          $animate.addClass(this.$$element, toAdd);
 7912        }
 7913
 7914        var toRemove = tokenDifference(oldClasses, newClasses);
 7915        if (toRemove && toRemove.length) {
 7916          $animate.removeClass(this.$$element, toRemove);
 7917        }
 7918      },
 7919
 7920      /**
 7921       * Set a normalized attribute on the element in a way such that all directives
 7922       * can share the attribute. This function properly handles boolean attributes.
 7923       * @param {string} key Normalized key. (ie ngAttribute)
 7924       * @param {string|boolean} value The value to set. If `null` attribute will be deleted.
 7925       * @param {boolean=} writeAttr If false, does not write the value to DOM element attribute.
 7926       *     Defaults to true.
 7927       * @param {string=} attrName Optional none normalized name. Defaults to key.
 7928       */
 7929      $set: function(key, value, writeAttr, attrName) {
 7930        // TODO: decide whether or not to throw an error if "class"
 7931        //is set through this function since it may cause $updateClass to
 7932        //become unstable.
 7933
 7934        var node = this.$$element[0],
 7935            booleanKey = getBooleanAttrName(node, key),
 7936            aliasedKey = getAliasedAttrName(key),
 7937            observer = key,
 7938            nodeName;
 7939
 7940        if (booleanKey) {
 7941          this.$$element.prop(key, value);
 7942          attrName = booleanKey;
 7943        } else if (aliasedKey) {
 7944          this[aliasedKey] = value;
 7945          observer = aliasedKey;
 7946        }
 7947
 7948        this[key] = value;
 7949
 7950        // translate normalized key to actual key
 7951        if (attrName) {
 7952          this.$attr[key] = attrName;
 7953        } else {
 7954          attrName = this.$attr[key];
 7955          if (!attrName) {
 7956            this.$attr[key] = attrName = snake_case(key, '-');
 7957          }
 7958        }
 7959
 7960        nodeName = nodeName_(this.$$element);
 7961
 7962        if ((nodeName === 'a' && (key === 'href' || key === 'xlinkHref')) ||
 7963            (nodeName === 'img' && key === 'src')) {
 7964          // sanitize a[href] and img[src] values
 7965          this[key] = value = $$sanitizeUri(value, key === 'src');
 7966        } else if (nodeName === 'img' && key === 'srcset') {
 7967          // sanitize img[srcset] values
 7968          var result = "";
 7969
 7970          // first check if there are spaces because it's not the same pattern
 7971          var trimmedSrcset = trim(value);
 7972          //                (   999x   ,|   999w   ,|   ,|,   )
 7973          var srcPattern = /(\s+\d+x\s*,|\s+\d+w\s*,|\s+,|,\s+)/;
 7974          var pattern = /\s/.test(trimmedSrcset) ? srcPattern : /(,)/;
 7975
 7976          // split srcset into tuple of uri and descriptor except for the last item
 7977          var rawUris = trimmedSrcset.split(pattern);
 7978
 7979          // for each tuples
 7980          var nbrUrisWith2parts = Math.floor(rawUris.length / 2);
 7981          for (var i = 0; i < nbrUrisWith2parts; i++) {
 7982            var innerIdx = i * 2;
 7983            // sanitize the uri
 7984            result += $$sanitizeUri(trim(rawUris[innerIdx]), true);
 7985            // add the descriptor
 7986            result += (" " + trim(rawUris[innerIdx + 1]));
 7987          }
 7988
 7989          // split the last item into uri and descriptor
 7990          var lastTuple = trim(rawUris[i * 2]).split(/\s/);
 7991
 7992          // sanitize the last uri
 7993          result += $$sanitizeUri(trim(lastTuple[0]), true);
 7994
 7995          // and add the last descriptor if any
 7996          if (lastTuple.length === 2) {
 7997            result += (" " + trim(lastTuple[1]));
 7998          }
 7999          this[key] = value = result;
 8000        }
 8001
 8002        if (writeAttr !== false) {
 8003          if (value === null || isUndefined(value)) {
 8004            this.$$element.removeAttr(attrName);
 8005          } else {
 8006            if (SIMPLE_ATTR_NAME.test(attrName)) {
 8007              this.$$element.attr(attrName, value);
 8008            } else {
 8009              setSpecialAttr(this.$$element[0], attrName, value);
 8010            }
 8011          }
 8012        }
 8013
 8014        // fire observers
 8015        var $$observers = this.$$observers;
 8016        $$observers && forEach($$observers[observer], function(fn) {
 8017          try {
 8018            fn(value);
 8019          } catch (e) {
 8020            $exceptionHandler(e);
 8021          }
 8022        });
 8023      },
 8024
 8025
 8026      /**
 8027       * @ngdoc method
 8028       * @name $compile.directive.Attributes#$observe
 8029       * @kind function
 8030       *
 8031       * @description
 8032       * Observes an interpolated attribute.
 8033       *
 8034       * The observer function will be invoked once during the next `$digest` following
 8035       * compilation. The observer is then invoked whenever the interpolated value
 8036       * changes.
 8037       *
 8038       * @param {string} key Normalized key. (ie ngAttribute) .
 8039       * @param {function(interpolatedValue)} fn Function that will be called whenever
 8040                the interpolated value of the attribute changes.
 8041       *        See the {@link guide/interpolation#how-text-and-attribute-bindings-work Interpolation
 8042       *        guide} for more info.
 8043       * @returns {function()} Returns a deregistration function for this observer.
 8044       */
 8045      $observe: function(key, fn) {
 8046        var attrs = this,
 8047            $$observers = (attrs.$$observers || (attrs.$$observers = createMap())),
 8048            listeners = ($$observers[key] || ($$observers[key] = []));
 8049
 8050        listeners.push(fn);
 8051        $rootScope.$evalAsync(function() {
 8052          if (!listeners.$$inter && attrs.hasOwnProperty(key) && !isUndefined(attrs[key])) {
 8053            // no one registered attribute interpolation function, so lets call it manually
 8054            fn(attrs[key]);
 8055          }
 8056        });
 8057
 8058        return function() {
 8059          arrayRemove(listeners, fn);
 8060        };
 8061      }
 8062    };
 8063
 8064    function setSpecialAttr(element, attrName, value) {
 8065      // Attributes names that do not start with letters (such as `(click)`) cannot be set using `setAttribute`
 8066      // so we have to jump through some hoops to get such an attribute
 8067      // https://github.com/angular/angular.js/pull/13318
 8068      specialAttrHolder.innerHTML = "<span " + attrName + ">";
 8069      var attributes = specialAttrHolder.firstChild.attributes;
 8070      var attribute = attributes[0];
 8071      // We have to remove the attribute from its container element before we can add it to the destination element
 8072      attributes.removeNamedItem(attribute.name);
 8073      attribute.value = value;
 8074      element.attributes.setNamedItem(attribute);
 8075    }
 8076
 8077    function safeAddClass($element, className) {
 8078      try {
 8079        $element.addClass(className);
 8080      } catch (e) {
 8081        // ignore, since it means that we are trying to set class on
 8082        // SVG element, where class name is read-only.
 8083      }
 8084    }
 8085
 8086
 8087    var startSymbol = $interpolate.startSymbol(),
 8088        endSymbol = $interpolate.endSymbol(),
 8089        denormalizeTemplate = (startSymbol == '{{' && endSymbol  == '}}')
 8090            ? identity
 8091            : function denormalizeTemplate(template) {
 8092              return template.replace(/\{\{/g, startSymbol).replace(/}}/g, endSymbol);
 8093        },
 8094        NG_ATTR_BINDING = /^ngAttr[A-Z]/;
 8095    var MULTI_ELEMENT_DIR_RE = /^(.+)Start$/;
 8096
 8097    compile.$$addBindingInfo = debugInfoEnabled ? function $$addBindingInfo($element, binding) {
 8098      var bindings = $element.data('$binding') || [];
 8099
 8100      if (isArray(binding)) {
 8101        bindings = bindings.concat(binding);
 8102      } else {
 8103        bindings.push(binding);
 8104      }
 8105
 8106      $element.data('$binding', bindings);
 8107    } : noop;
 8108
 8109    compile.$$addBindingClass = debugInfoEnabled ? function $$addBindingClass($element) {
 8110      safeAddClass($element, 'ng-binding');
 8111    } : noop;
 8112
 8113    compile.$$addScopeInfo = debugInfoEnabled ? function $$addScopeInfo($element, scope, isolated, noTemplate) {
 8114      var dataName = isolated ? (noTemplate ? '$isolateScopeNoTemplate' : '$isolateScope') : '$scope';
 8115      $element.data(dataName, scope);
 8116    } : noop;
 8117
 8118    compile.$$addScopeClass = debugInfoEnabled ? function $$addScopeClass($element, isolated) {
 8119      safeAddClass($element, isolated ? 'ng-isolate-scope' : 'ng-scope');
 8120    } : noop;
 8121
 8122    compile.$$createComment = function(directiveName, comment) {
 8123      var content = '';
 8124      if (debugInfoEnabled) {
 8125        content = ' ' + (directiveName || '') + ': ' + (comment || '') + ' ';
 8126      }
 8127      return document.createComment(content);
 8128    };
 8129
 8130    return compile;
 8131
 8132    //================================
 8133
 8134    function compile($compileNodes, transcludeFn, maxPriority, ignoreDirective,
 8135                        previousCompileContext) {
 8136      if (!($compileNodes instanceof jqLite)) {
 8137        // jquery always rewraps, whereas we need to preserve the original selector so that we can
 8138        // modify it.
 8139        $compileNodes = jqLite($compileNodes);
 8140      }
 8141
 8142      var NOT_EMPTY = /\S+/;
 8143
 8144      // We can not compile top level text elements since text nodes can be merged and we will
 8145      // not be able to attach scope data to them, so we will wrap them in <span>
 8146      for (var i = 0, len = $compileNodes.length; i < len; i++) {
 8147        var domNode = $compileNodes[i];
 8148
 8149        if (domNode.nodeType === NODE_TYPE_TEXT && domNode.nodeValue.match(NOT_EMPTY) /* non-empty */) {
 8150          jqLiteWrapNode(domNode, $compileNodes[i] = document.createElement('span'));
 8151        }
 8152      }
 8153
 8154      var compositeLinkFn =
 8155              compileNodes($compileNodes, transcludeFn, $compileNodes,
 8156                           maxPriority, ignoreDirective, previousCompileContext);
 8157      compile.$$addScopeClass($compileNodes);
 8158      var namespace = null;
 8159      return function publicLinkFn(scope, cloneConnectFn, options) {
 8160        assertArg(scope, 'scope');
 8161
 8162        if (previousCompileContext && previousCompileContext.needsNewScope) {
 8163          // A parent directive did a replace and a directive on this element asked
 8164          // for transclusion, which caused us to lose a layer of element on which
 8165          // we could hold the new transclusion scope, so we will create it manually
 8166          // here.
 8167          scope = scope.$parent.$new();
 8168        }
 8169
 8170        options = options || {};
 8171        var parentBoundTranscludeFn = options.parentBoundTranscludeFn,
 8172          transcludeControllers = options.transcludeControllers,
 8173          futureParentElement = options.futureParentElement;
 8174
 8175        // When `parentBoundTranscludeFn` is passed, it is a
 8176        // `controllersBoundTransclude` function (it was previously passed
 8177        // as `transclude` to directive.link) so we must unwrap it to get
 8178        // its `boundTranscludeFn`
 8179        if (parentBoundTranscludeFn && parentBoundTranscludeFn.$$boundTransclude) {
 8180          parentBoundTranscludeFn = parentBoundTranscludeFn.$$boundTransclude;
 8181        }
 8182
 8183        if (!namespace) {
 8184          namespace = detectNamespaceForChildElements(futureParentElement);
 8185        }
 8186        var $linkNode;
 8187        if (namespace !== 'html') {
 8188          // When using a directive with replace:true and templateUrl the $compileNodes
 8189          // (or a child element inside of them)
 8190          // might change, so we need to recreate the namespace adapted compileNodes
 8191          // for call to the link function.
 8192          // Note: This will already clone the nodes...
 8193          $linkNode = jqLite(
 8194            wrapTemplate(namespace, jqLite('<div>').append($compileNodes).html())
 8195          );
 8196        } else if (cloneConnectFn) {
 8197          // important!!: we must call our jqLite.clone() since the jQuery one is trying to be smart
 8198          // and sometimes changes the structure of the DOM.
 8199          $linkNode = JQLitePrototype.clone.call($compileNodes);
 8200        } else {
 8201          $linkNode = $compileNodes;
 8202        }
 8203
 8204        if (transcludeControllers) {
 8205          for (var controllerName in transcludeControllers) {
 8206            $linkNode.data('$' + controllerName + 'Controller', transcludeControllers[controllerName].instance);
 8207          }
 8208        }
 8209
 8210        compile.$$addScopeInfo($linkNode, scope);
 8211
 8212        if (cloneConnectFn) cloneConnectFn($linkNode, scope);
 8213        if (compositeLinkFn) compositeLinkFn(scope, $linkNode, $linkNode, parentBoundTranscludeFn);
 8214        return $linkNode;
 8215      };
 8216    }
 8217
 8218    function detectNamespaceForChildElements(parentElement) {
 8219      // TODO: Make this detect MathML as well...
 8220      var node = parentElement && parentElement[0];
 8221      if (!node) {
 8222        return 'html';
 8223      } else {
 8224        return nodeName_(node) !== 'foreignobject' && toString.call(node).match(/SVG/) ? 'svg' : 'html';
 8225      }
 8226    }
 8227
 8228    /**
 8229     * Compile function matches each node in nodeList against the directives. Once all directives
 8230     * for a particular node are collected their compile functions are executed. The compile
 8231     * functions return values - the linking functions - are combined into a composite linking
 8232     * function, which is the a linking function for the node.
 8233     *
 8234     * @param {NodeList} nodeList an array of nodes or NodeList to compile
 8235     * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the
 8236     *        scope argument is auto-generated to the new child of the transcluded parent scope.
 8237     * @param {DOMElement=} $rootElement If the nodeList is the root of the compilation tree then
 8238     *        the rootElement must be set the jqLite collection of the compile root. This is
 8239     *        needed so that the jqLite collection items can be replaced with widgets.
 8240     * @param {number=} maxPriority Max directive priority.
 8241     * @returns {Function} A composite linking function of all of the matched directives or null.
 8242     */
 8243    function compileNodes(nodeList, transcludeFn, $rootElement, maxPriority, ignoreDirective,
 8244                            previousCompileContext) {
 8245      var linkFns = [],
 8246          attrs, directives, nodeLinkFn, childNodes, childLinkFn, linkFnFound, nodeLinkFnFound;
 8247
 8248      for (var i = 0; i < nodeList.length; i++) {
 8249        attrs = new Attributes();
 8250
 8251        // we must always refer to nodeList[i] since the nodes can be replaced underneath us.
 8252        directives = collectDirectives(nodeList[i], [], attrs, i === 0 ? maxPriority : undefined,
 8253                                        ignoreDirective);
 8254
 8255        nodeLinkFn = (directives.length)
 8256            ? applyDirectivesToNode(directives, nodeList[i], attrs, transcludeFn, $rootElement,
 8257                                      null, [], [], previousCompileContext)
 8258            : null;
 8259
 8260        if (nodeLinkFn && nodeLinkFn.scope) {
 8261          compile.$$addScopeClass(attrs.$$element);
 8262        }
 8263
 8264        childLinkFn = (nodeLinkFn && nodeLinkFn.terminal ||
 8265                      !(childNodes = nodeList[i].childNodes) ||
 8266                      !childNodes.length)
 8267            ? null
 8268            : compileNodes(childNodes,
 8269                 nodeLinkFn ? (
 8270                  (nodeLinkFn.transcludeOnThisElement || !nodeLinkFn.templateOnThisElement)
 8271                     && nodeLinkFn.transclude) : transcludeFn);
 8272
 8273        if (nodeLinkFn || childLinkFn) {
 8274          linkFns.push(i, nodeLinkFn, childLinkFn);
 8275          linkFnFound = true;
 8276          nodeLinkFnFound = nodeLinkFnFound || nodeLinkFn;
 8277        }
 8278
 8279        //use the previous context only for the first element in the virtual group
 8280        previousCompileContext = null;
 8281      }
 8282
 8283      // return a linking function if we have found anything, null otherwise
 8284      return linkFnFound ? compositeLinkFn : null;
 8285
 8286      function compositeLinkFn(scope, nodeList, $rootElement, parentBoundTranscludeFn) {
 8287        var nodeLinkFn, childLinkFn, node, childScope, i, ii, idx, childBoundTranscludeFn;
 8288        var stableNodeList;
 8289
 8290
 8291        if (nodeLinkFnFound) {
 8292          // copy nodeList so that if a nodeLinkFn removes or adds an element at this DOM level our
 8293          // offsets don't get screwed up
 8294          var nodeListLength = nodeList.length;
 8295          stableNodeList = new Array(nodeListLength);
 8296
 8297          // create a sparse array by only copying the elements which have a linkFn
 8298          for (i = 0; i < linkFns.length; i+=3) {
 8299            idx = linkFns[i];
 8300            stableNodeList[idx] = nodeList[idx];
 8301          }
 8302        } else {
 8303          stableNodeList = nodeList;
 8304        }
 8305
 8306        for (i = 0, ii = linkFns.length; i < ii;) {
 8307          node = stableNodeList[linkFns[i++]];
 8308          nodeLinkFn = linkFns[i++];
 8309          childLinkFn = linkFns[i++];
 8310
 8311          if (nodeLinkFn) {
 8312            if (nodeLinkFn.scope) {
 8313              childScope = scope.$new();
 8314              compile.$$addScopeInfo(jqLite(node), childScope);
 8315            } else {
 8316              childScope = scope;
 8317            }
 8318
 8319            if (nodeLinkFn.transcludeOnThisElement) {
 8320              childBoundTranscludeFn = createBoundTranscludeFn(
 8321                  scope, nodeLinkFn.transclude, parentBoundTranscludeFn);
 8322
 8323            } else if (!nodeLinkFn.templateOnThisElement && parentBoundTranscludeFn) {
 8324              childBoundTranscludeFn = parentBoundTranscludeFn;
 8325
 8326            } else if (!parentBoundTranscludeFn && transcludeFn) {
 8327              childBoundTranscludeFn = createBoundTranscludeFn(scope, transcludeFn);
 8328
 8329            } else {
 8330              childBoundTranscludeFn = null;
 8331            }
 8332
 8333            nodeLinkFn(childLinkFn, childScope, node, $rootElement, childBoundTranscludeFn);
 8334
 8335          } else if (childLinkFn) {
 8336            childLinkFn(scope, node.childNodes, undefined, parentBoundTranscludeFn);
 8337          }
 8338        }
 8339      }
 8340    }
 8341
 8342    function createBoundTranscludeFn(scope, transcludeFn, previousBoundTranscludeFn) {
 8343      function boundTranscludeFn(transcludedScope, cloneFn, controllers, futureParentElement, containingScope) {
 8344
 8345        if (!transcludedScope) {
 8346          transcludedScope = scope.$new(false, containingScope);
 8347          transcludedScope.$$transcluded = true;
 8348        }
 8349
 8350        return transcludeFn(transcludedScope, cloneFn, {
 8351          parentBoundTranscludeFn: previousBoundTranscludeFn,
 8352          transcludeControllers: controllers,
 8353          futureParentElement: futureParentElement
 8354        });
 8355      }
 8356
 8357      // We need  to attach the transclusion slots onto the `boundTranscludeFn`
 8358      // so that they are available inside the `controllersBoundTransclude` function
 8359      var boundSlots = boundTranscludeFn.$$slots = createMap();
 8360      for (var slotName in transcludeFn.$$slots) {
 8361        if (transcludeFn.$$slots[slotName]) {
 8362          boundSlots[slotName] = createBoundTranscludeFn(scope, transcludeFn.$$slots[slotName], previousBoundTranscludeFn);
 8363        } else {
 8364          boundSlots[slotName] = null;
 8365        }
 8366      }
 8367
 8368      return boundTranscludeFn;
 8369    }
 8370
 8371    /**
 8372     * Looks for directives on the given node and adds them to the directive collection which is
 8373     * sorted.
 8374     *
 8375     * @param node Node to search.
 8376     * @param directives An array to which the directives are added to. This array is sorted before
 8377     *        the function returns.
 8378     * @param attrs The shared attrs object which is used to populate the normalized attributes.
 8379     * @param {number=} maxPriority Max directive priority.
 8380     */
 8381    function collectDirectives(node, directives, attrs, maxPriority, ignoreDirective) {
 8382      var nodeType = node.nodeType,
 8383          attrsMap = attrs.$attr,
 8384          match,
 8385          className;
 8386
 8387      switch (nodeType) {
 8388        case NODE_TYPE_ELEMENT: /* Element */
 8389          // use the node name: <directive>
 8390          addDirective(directives,
 8391              directiveNormalize(nodeName_(node)), 'E', maxPriority, ignoreDirective);
 8392
 8393          // iterate over the attributes
 8394          for (var attr, name, nName, ngAttrName, value, isNgAttr, nAttrs = node.attributes,
 8395                   j = 0, jj = nAttrs && nAttrs.length; j < jj; j++) {
 8396            var attrStartName = false;
 8397            var attrEndName = false;
 8398
 8399            attr = nAttrs[j];
 8400            name = attr.name;
 8401            value = trim(attr.value);
 8402
 8403            // support ngAttr attribute binding
 8404            ngAttrName = directiveNormalize(name);
 8405            if (isNgAttr = NG_ATTR_BINDING.test(ngAttrName)) {
 8406              name = name.replace(PREFIX_REGEXP, '')
 8407                .substr(8).replace(/_(.)/g, function(match, letter) {
 8408                  return letter.toUpperCase();
 8409                });
 8410            }
 8411
 8412            var multiElementMatch = ngAttrName.match(MULTI_ELEMENT_DIR_RE);
 8413            if (multiElementMatch && directiveIsMultiElement(multiElementMatch[1])) {
 8414              attrStartName = name;
 8415              attrEndName = name.substr(0, name.length - 5) + 'end';
 8416              name = name.substr(0, name.length - 6);
 8417            }
 8418
 8419            nName = directiveNormalize(name.toLowerCase());
 8420            attrsMap[nName] = name;
 8421            if (isNgAttr || !attrs.hasOwnProperty(nName)) {
 8422                attrs[nName] = value;
 8423                if (getBooleanAttrName(node, nName)) {
 8424                  attrs[nName] = true; // presence means true
 8425                }
 8426            }
 8427            addAttrInterpolateDirective(node, directives, value, nName, isNgAttr);
 8428            addDirective(directives, nName, 'A', maxPriority, ignoreDirective, attrStartName,
 8429                          attrEndName);
 8430          }
 8431
 8432          // use class as directive
 8433          className = node.className;
 8434          if (isObject(className)) {
 8435              // Maybe SVGAnimatedString
 8436              className = className.animVal;
 8437          }
 8438          if (isString(className) && className !== '') {
 8439            while (match = CLASS_DIRECTIVE_REGEXP.exec(className)) {
 8440              nName = directiveNormalize(match[2]);
 8441              if (addDirective(directives, nName, 'C', maxPriority, ignoreDirective)) {
 8442                attrs[nName] = trim(match[3]);
 8443              }
 8444              className = className.substr(match.index + match[0].length);
 8445            }
 8446          }
 8447          break;
 8448        case NODE_TYPE_TEXT: /* Text Node */
 8449          if (msie === 11) {
 8450            // Workaround for #11781
 8451            while (node.parentNode && node.nextSibling && node.nextSibling.nodeType === NODE_TYPE_TEXT) {
 8452              node.nodeValue = node.nodeValue + node.nextSibling.nodeValue;
 8453              node.parentNode.removeChild(node.nextSibling);
 8454            }
 8455          }
 8456          addTextInterpolateDirective(directives, node.nodeValue);
 8457          break;
 8458        case NODE_TYPE_COMMENT: /* Comment */
 8459          try {
 8460            match = COMMENT_DIRECTIVE_REGEXP.exec(node.nodeValue);
 8461            if (match) {
 8462              nName = directiveNormalize(match[1]);
 8463              if (addDirective(directives, nName, 'M', maxPriority, ignoreDirective)) {
 8464                attrs[nName] = trim(match[2]);
 8465              }
 8466            }
 8467          } catch (e) {
 8468            // turns out that under some circumstances IE9 throws errors when one attempts to read
 8469            // comment's node value.
 8470            // Just ignore it and continue. (Can't seem to reproduce in test case.)
 8471          }
 8472          break;
 8473      }
 8474
 8475      directives.sort(byPriority);
 8476      return directives;
 8477    }
 8478
 8479    /**
 8480     * Given a node with an directive-start it collects all of the siblings until it finds
 8481     * directive-end.
 8482     * @param node
 8483     * @param attrStart
 8484     * @param attrEnd
 8485     * @returns {*}
 8486     */
 8487    function groupScan(node, attrStart, attrEnd) {
 8488      var nodes = [];
 8489      var depth = 0;
 8490      if (attrStart && node.hasAttribute && node.hasAttribute(attrStart)) {
 8491        do {
 8492          if (!node) {
 8493            throw $compileMinErr('uterdir',
 8494                      "Unterminated attribute, found '{0}' but no matching '{1}' found.",
 8495                      attrStart, attrEnd);
 8496          }
 8497          if (node.nodeType == NODE_TYPE_ELEMENT) {
 8498            if (node.hasAttribute(attrStart)) depth++;
 8499            if (node.hasAttribute(attrEnd)) depth--;
 8500          }
 8501          nodes.push(node);
 8502          node = node.nextSibling;
 8503        } while (depth > 0);
 8504      } else {
 8505        nodes.push(node);
 8506      }
 8507
 8508      return jqLite(nodes);
 8509    }
 8510
 8511    /**
 8512     * Wrapper for linking function which converts normal linking function into a grouped
 8513     * linking function.
 8514     * @param linkFn
 8515     * @param attrStart
 8516     * @param attrEnd
 8517     * @returns {Function}
 8518     */
 8519    function groupElementsLinkFnWrapper(linkFn, attrStart, attrEnd) {
 8520      return function groupedElementsLink(scope, element, attrs, controllers, transcludeFn) {
 8521        element = groupScan(element[0], attrStart, attrEnd);
 8522        return linkFn(scope, element, attrs, controllers, transcludeFn);
 8523      };
 8524    }
 8525
 8526    /**
 8527     * A function generator that is used to support both eager and lazy compilation
 8528     * linking function.
 8529     * @param eager
 8530     * @param $compileNodes
 8531     * @param transcludeFn
 8532     * @param maxPriority
 8533     * @param ignoreDirective
 8534     * @param previousCompileContext
 8535     * @returns {Function}
 8536     */
 8537    function compilationGenerator(eager, $compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext) {
 8538      var compiled;
 8539
 8540      if (eager) {
 8541        return compile($compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext);
 8542      }
 8543      return function lazyCompilation() {
 8544        if (!compiled) {
 8545          compiled = compile($compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext);
 8546
 8547          // Null out all of these references in order to make them eligible for garbage collection
 8548          // since this is a potentially long lived closure
 8549          $compileNodes = transcludeFn = previousCompileContext = null;
 8550        }
 8551        return compiled.apply(this, arguments);
 8552      };
 8553    }
 8554
 8555    /**
 8556     * Once the directives have been collected, their compile functions are executed. This method
 8557     * is responsible for inlining directive templates as well as terminating the application
 8558     * of the directives if the terminal directive has been reached.
 8559     *
 8560     * @param {Array} directives Array of collected directives to execute their compile function.
 8561     *        this needs to be pre-sorted by priority order.
 8562     * @param {Node} compileNode The raw DOM node to apply the compile functions to
 8563     * @param {Object} templateAttrs The shared attribute function
 8564     * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the
 8565     *                                                  scope argument is auto-generated to the new
 8566     *                                                  child of the transcluded parent scope.
 8567     * @param {JQLite} jqCollection If we are working on the root of the compile tree then this
 8568     *                              argument has the root jqLite array so that we can replace nodes
 8569     *                              on it.
 8570     * @param {Object=} originalReplaceDirective An optional directive that will be ignored when
 8571     *                                           compiling the transclusion.
 8572     * @param {Array.<Function>} preLinkFns
 8573     * @param {Array.<Function>} postLinkFns
 8574     * @param {Object} previousCompileContext Context used for previous compilation of the current
 8575     *                                        node
 8576     * @returns {Function} linkFn
 8577     */
 8578    function applyDirectivesToNode(directives, compileNode, templateAttrs, transcludeFn,
 8579                                   jqCollection, originalReplaceDirective, preLinkFns, postLinkFns,
 8580                                   previousCompileContext) {
 8581      previousCompileContext = previousCompileContext || {};
 8582
 8583      var terminalPriority = -Number.MAX_VALUE,
 8584          newScopeDirective = previousCompileContext.newScopeDirective,
 8585          controllerDirectives = previousCompileContext.controllerDirectives,
 8586          newIsolateScopeDirective = previousCompileContext.newIsolateScopeDirective,
 8587          templateDirective = previousCompileContext.templateDirective,
 8588          nonTlbTranscludeDirective = previousCompileContext.nonTlbTranscludeDirective,
 8589          hasTranscludeDirective = false,
 8590          hasTemplate = false,
 8591          hasElementTranscludeDirective = previousCompileContext.hasElementTranscludeDirective,
 8592          $compileNode = templateAttrs.$$element = jqLite(compileNode),
 8593          directive,
 8594          directiveName,
 8595          $template,
 8596          replaceDirective = originalReplaceDirective,
 8597          childTranscludeFn = transcludeFn,
 8598          linkFn,
 8599          didScanForMultipleTransclusion = false,
 8600          mightHaveMultipleTransclusionError = false,
 8601          directiveValue;
 8602
 8603      // executes all directives on the current element
 8604      for (var i = 0, ii = directives.length; i < ii; i++) {
 8605        directive = directives[i];
 8606        var attrStart = directive.$$start;
 8607        var attrEnd = directive.$$end;
 8608
 8609        // collect multiblock sections
 8610        if (attrStart) {
 8611          $compileNode = groupScan(compileNode, attrStart, attrEnd);
 8612        }
 8613        $template = undefined;
 8614
 8615        if (terminalPriority > directive.priority) {
 8616          break; // prevent further processing of directives
 8617        }
 8618
 8619        if (directiveValue = directive.scope) {
 8620
 8621          // skip the check for directives with async templates, we'll check the derived sync
 8622          // directive when the template arrives
 8623          if (!directive.templateUrl) {
 8624            if (isObject(directiveValue)) {
 8625              // This directive is trying to add an isolated scope.
 8626              // Check that there is no scope of any kind already
 8627              assertNoDuplicate('new/isolated scope', newIsolateScopeDirective || newScopeDirective,
 8628                                directive, $compileNode);
 8629              newIsolateScopeDirective = directive;
 8630            } else {
 8631              // This directive is trying to add a child scope.
 8632              // Check that there is no isolated scope already
 8633              assertNoDuplicate('new/isolated scope', newIsolateScopeDirective, directive,
 8634                                $compileNode);
 8635            }
 8636          }
 8637
 8638          newScopeDirective = newScopeDirective || directive;
 8639        }
 8640
 8641        directiveName = directive.name;
 8642
 8643        // If we encounter a condition that can result in transclusion on the directive,
 8644        // then scan ahead in the remaining directives for others that may cause a multiple
 8645        // transclusion error to be thrown during the compilation process.  If a matching directive
 8646        // is found, then we know that when we encounter a transcluded directive, we need to eagerly
 8647        // compile the `transclude` function rather than doing it lazily in order to throw
 8648        // exceptions at the correct time
 8649        if (!didScanForMultipleTransclusion && ((directive.replace && (directive.templateUrl || directive.template))
 8650            || (directive.transclude && !directive.$$tlb))) {
 8651                var candidateDirective;
 8652
 8653                for (var scanningIndex = i + 1; candidateDirective = directives[scanningIndex++];) {
 8654                    if ((candidateDirective.transclude && !candidateDirective.$$tlb)
 8655                        || (candidateDirective.replace && (candidateDirective.templateUrl || candidateDirective.template))) {
 8656                        mightHaveMultipleTransclusionError = true;
 8657                        break;
 8658                    }
 8659                }
 8660
 8661                didScanForMultipleTransclusion = true;
 8662        }
 8663
 8664        if (!directive.templateUrl && directive.controller) {
 8665          directiveValue = directive.controller;
 8666          controllerDirectives = controllerDirectives || createMap();
 8667          assertNoDuplicate("'" + directiveName + "' controller",
 8668              controllerDirectives[directiveName], directive, $compileNode);
 8669          controllerDirectives[directiveName] = directive;
 8670        }
 8671
 8672        if (directiveValue = directive.transclude) {
 8673          hasTranscludeDirective = true;
 8674
 8675          // Special case ngIf and ngRepeat so that we don't complain about duplicate transclusion.
 8676          // This option should only be used by directives that know how to safely handle element transclusion,
 8677          // where the transcluded nodes are added or replaced after linking.
 8678          if (!directive.$$tlb) {
 8679            assertNoDuplicate('transclusion', nonTlbTranscludeDirective, directive, $compileNode);
 8680            nonTlbTranscludeDirective = directive;
 8681          }
 8682
 8683          if (directiveValue == 'element') {
 8684            hasElementTranscludeDirective = true;
 8685            terminalPriority = directive.priority;
 8686            $template = $compileNode;
 8687            $compileNode = templateAttrs.$$element =
 8688                jqLite(compile.$$createComment(directiveName, templateAttrs[directiveName]));
 8689            compileNode = $compileNode[0];
 8690            replaceWith(jqCollection, sliceArgs($template), compileNode);
 8691
 8692            // Support: Chrome < 50
 8693            // https://github.com/angular/angular.js/issues/14041
 8694
 8695            // In the versions of V8 prior to Chrome 50, the document fragment that is created
 8696            // in the `replaceWith` function is improperly garbage collected despite still
 8697            // being referenced by the `parentNode` property of all of the child nodes.  By adding
 8698            // a reference to the fragment via a different property, we can avoid that incorrect
 8699            // behavior.
 8700            // TODO: remove this line after Chrome 50 has been released
 8701            $template[0].$$parentNode = $template[0].parentNode;
 8702
 8703            childTranscludeFn = compilationGenerator(mightHaveMultipleTransclusionError, $template, transcludeFn, terminalPriority,
 8704                                        replaceDirective && replaceDirective.name, {
 8705                                          // Don't pass in:
 8706                                          // - controllerDirectives - otherwise we'll create duplicates controllers
 8707                                          // - newIsolateScopeDirective or templateDirective - combining templates with
 8708                                          //   element transclusion doesn't make sense.
 8709                                          //
 8710                                          // We need only nonTlbTranscludeDirective so that we prevent putting transclusion
 8711                                          // on the same element more than once.
 8712                                          nonTlbTranscludeDirective: nonTlbTranscludeDirective
 8713                                        });
 8714          } else {
 8715
 8716            var slots = createMap();
 8717
 8718            $template = jqLite(jqLiteClone(compileNode)).contents();
 8719
 8720            if (isObject(directiveValue)) {
 8721
 8722              // We have transclusion slots,
 8723              // collect them up, compile them and store their transclusion functions
 8724              $template = [];
 8725
 8726              var slotMap = createMap();
 8727              var filledSlots = createMap();
 8728
 8729              // Parse the element selectors
 8730              forEach(directiveValue, function(elementSelector, slotName) {
 8731                // If an element selector starts with a ? then it is optional
 8732                var optional = (elementSelector.charAt(0) === '?');
 8733                elementSelector = optional ? elementSelector.substring(1) : elementSelector;
 8734
 8735                slotMap[elementSelector] = slotName;
 8736
 8737                // We explicitly assign `null` since this implies that a slot was defined but not filled.
 8738                // Later when calling boundTransclusion functions with a slot name we only error if the
 8739                // slot is `undefined`
 8740                slots[slotName] = null;
 8741
 8742                // filledSlots contains `true` for all slots that are either optional or have been
 8743                // filled. This is used to check that we have not missed any required slots
 8744                filledSlots[slotName] = optional;
 8745              });
 8746
 8747              // Add the matching elements into their slot
 8748              forEach($compileNode.contents(), function(node) {
 8749                var slotName = slotMap[directiveNormalize(nodeName_(node))];
 8750                if (slotName) {
 8751                  filledSlots[slotName] = true;
 8752                  slots[slotName] = slots[slotName] || [];
 8753                  slots[slotName].push(node);
 8754                } else {
 8755                  $template.push(node);
 8756                }
 8757              });
 8758
 8759              // Check for required slots that were not filled
 8760              forEach(filledSlots, function(filled, slotName) {
 8761                if (!filled) {
 8762                  throw $compileMinErr('reqslot', 'Required transclusion slot `{0}` was not filled.', slotName);
 8763                }
 8764              });
 8765
 8766              for (var slotName in slots) {
 8767                if (slots[slotName]) {
 8768                  // Only define a transclusion function if the slot was filled
 8769                  slots[slotName] = compilationGenerator(mightHaveMultipleTransclusionError, slots[slotName], transcludeFn);
 8770                }
 8771              }
 8772            }
 8773
 8774            $compileNode.empty(); // clear contents
 8775            childTranscludeFn = compilationGenerator(mightHaveMultipleTransclusionError, $template, transcludeFn, undefined,
 8776                undefined, { needsNewScope: directive.$$isolateScope || directive.$$newScope});
 8777            childTranscludeFn.$$slots = slots;
 8778          }
 8779        }
 8780
 8781        if (directive.template) {
 8782          hasTemplate = true;
 8783          assertNoDuplicate('template', templateDirective, directive, $compileNode);
 8784          templateDirective = directive;
 8785
 8786          directiveValue = (isFunction(directive.template))
 8787              ? directive.template($compileNode, templateAttrs)
 8788              : directive.template;
 8789
 8790          directiveValue = denormalizeTemplate(directiveValue);
 8791
 8792          if (directive.replace) {
 8793            replaceDirective = directive;
 8794            if (jqLiteIsTextNode(directiveValue)) {
 8795              $template = [];
 8796            } else {
 8797              $template = removeComments(wrapTemplate(directive.templateNamespace, trim(directiveValue)));
 8798            }
 8799            compileNode = $template[0];
 8800
 8801            if ($template.length != 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {
 8802              throw $compileMinErr('tplrt',
 8803                  "Template for directive '{0}' must have exactly one root element. {1}",
 8804                  directiveName, '');
 8805            }
 8806
 8807            replaceWith(jqCollection, $compileNode, compileNode);
 8808
 8809            var newTemplateAttrs = {$attr: {}};
 8810
 8811            // combine directives from the original node and from the template:
 8812            // - take the array of directives for this element
 8813            // - split it into two parts, those that already applied (processed) and those that weren't (unprocessed)
 8814            // - collect directives from the template and sort them by priority
 8815            // - combine directives as: processed + template + unprocessed
 8816            var templateDirectives = collectDirectives(compileNode, [], newTemplateAttrs);
 8817            var unprocessedDirectives = directives.splice(i + 1, directives.length - (i + 1));
 8818
 8819            if (newIsolateScopeDirective || newScopeDirective) {
 8820              // The original directive caused the current element to be replaced but this element
 8821              // also needs to have a new scope, so we need to tell the template directives
 8822              // that they would need to get their scope from further up, if they require transclusion
 8823              markDirectiveScope(templateDirectives, newIsolateScopeDirective, newScopeDirective);
 8824            }
 8825            directives = directives.concat(templateDirectives).concat(unprocessedDirectives);
 8826            mergeTemplateAttributes(templateAttrs, newTemplateAttrs);
 8827
 8828            ii = directives.length;
 8829          } else {
 8830            $compileNode.html(directiveValue);
 8831          }
 8832        }
 8833
 8834        if (directive.templateUrl) {
 8835          hasTemplate = true;
 8836          assertNoDuplicate('template', templateDirective, directive, $compileNode);
 8837          templateDirective = directive;
 8838
 8839          if (directive.replace) {
 8840            replaceDirective = directive;
 8841          }
 8842
 8843          nodeLinkFn = compileTemplateUrl(directives.splice(i, directives.length - i), $compileNode,
 8844              templateAttrs, jqCollection, hasTranscludeDirective && childTranscludeFn, preLinkFns, postLinkFns, {
 8845                controllerDirectives: controllerDirectives,
 8846                newScopeDirective: (newScopeDirective !== directive) && newScopeDirective,
 8847                newIsolateScopeDirective: newIsolateScopeDirective,
 8848                templateDirective: templateDirective,
 8849                nonTlbTranscludeDirective: nonTlbTranscludeDirective
 8850              });
 8851          ii = directives.length;
 8852        } else if (directive.compile) {
 8853          try {
 8854            linkFn = directive.compile($compileNode, templateAttrs, childTranscludeFn);
 8855            if (isFunction(linkFn)) {
 8856              addLinkFns(null, linkFn, attrStart, attrEnd);
 8857            } else if (linkFn) {
 8858              addLinkFns(linkFn.pre, linkFn.post, attrStart, attrEnd);
 8859            }
 8860          } catch (e) {
 8861            $exceptionHandler(e, startingTag($compileNode));
 8862          }
 8863        }
 8864
 8865        if (directive.terminal) {
 8866          nodeLinkFn.terminal = true;
 8867          terminalPriority = Math.max(terminalPriority, directive.priority);
 8868        }
 8869
 8870      }
 8871
 8872      nodeLinkFn.scope = newScopeDirective && newScopeDirective.scope === true;
 8873      nodeLinkFn.transcludeOnThisElement = hasTranscludeDirective;
 8874      nodeLinkFn.templateOnThisElement = hasTemplate;
 8875      nodeLinkFn.transclude = childTranscludeFn;
 8876
 8877      previousCompileContext.hasElementTranscludeDirective = hasElementTranscludeDirective;
 8878
 8879      // might be normal or delayed nodeLinkFn depending on if templateUrl is present
 8880      return nodeLinkFn;
 8881
 8882      ////////////////////
 8883
 8884      function addLinkFns(pre, post, attrStart, attrEnd) {
 8885        if (pre) {
 8886          if (attrStart) pre = groupElementsLinkFnWrapper(pre, attrStart, attrEnd);
 8887          pre.require = directive.require;
 8888          pre.directiveName = directiveName;
 8889          if (newIsolateScopeDirective === directive || directive.$$isolateScope) {
 8890            pre = cloneAndAnnotateFn(pre, {isolateScope: true});
 8891          }
 8892          preLinkFns.push(pre);
 8893        }
 8894        if (post) {
 8895          if (attrStart) post = groupElementsLinkFnWrapper(post, attrStart, attrEnd);
 8896          post.require = directive.require;
 8897          post.directiveName = directiveName;
 8898          if (newIsolateScopeDirective === directive || directive.$$isolateScope) {
 8899            post = cloneAndAnnotateFn(post, {isolateScope: true});
 8900          }
 8901          postLinkFns.push(post);
 8902        }
 8903      }
 8904
 8905      function nodeLinkFn(childLinkFn, scope, linkNode, $rootElement, boundTranscludeFn) {
 8906        var i, ii, linkFn, isolateScope, controllerScope, elementControllers, transcludeFn, $element,
 8907            attrs, removeScopeBindingWatches, removeControllerBindingWatches;
 8908
 8909        if (compileNode === linkNode) {
 8910          attrs = templateAttrs;
 8911          $element = templateAttrs.$$element;
 8912        } else {
 8913          $element = jqLite(linkNode);
 8914          attrs = new Attributes($element, templateAttrs);
 8915        }
 8916
 8917        controllerScope = scope;
 8918        if (newIsolateScopeDirective) {
 8919          isolateScope = scope.$new(true);
 8920        } else if (newScopeDirective) {
 8921          controllerScope = scope.$parent;
 8922        }
 8923
 8924        if (boundTranscludeFn) {
 8925          // track `boundTranscludeFn` so it can be unwrapped if `transcludeFn`
 8926          // is later passed as `parentBoundTranscludeFn` to `publicLinkFn`
 8927          transcludeFn = controllersBoundTransclude;
 8928          transcludeFn.$$boundTransclude = boundTranscludeFn;
 8929          // expose the slots on the `$transclude` function
 8930          transcludeFn.isSlotFilled = function(slotName) {
 8931            return !!boundTranscludeFn.$$slots[slotName];
 8932          };
 8933        }
 8934
 8935        if (controllerDirectives) {
 8936          elementControllers = setupControllers($element, attrs, transcludeFn, controllerDirectives, isolateScope, scope, newIsolateScopeDirective);
 8937        }
 8938
 8939        if (newIsolateScopeDirective) {
 8940          // Initialize isolate scope bindings for new isolate scope directive.
 8941          compile.$$addScopeInfo($element, isolateScope, true, !(templateDirective && (templateDirective === newIsolateScopeDirective ||
 8942              templateDirective === newIsolateScopeDirective.$$originalDirective)));
 8943          compile.$$addScopeClass($element, true);
 8944          isolateScope.$$isolateBindings =
 8945              newIsolateScopeDirective.$$isolateBindings;
 8946          removeScopeBindingWatches = initializeDirectiveBindings(scope, attrs, isolateScope,
 8947                                        isolateScope.$$isolateBindings,
 8948                                        newIsolateScopeDirective);
 8949          if (removeScopeBindingWatches) {
 8950            isolateScope.$on('$destroy', removeScopeBindingWatches);
 8951          }
 8952        }
 8953
 8954        // Initialize bindToController bindings
 8955        for (var name in elementControllers) {
 8956          var controllerDirective = controllerDirectives[name];
 8957          var controller = elementControllers[name];
 8958          var bindings = controllerDirective.$$bindings.bindToController;
 8959
 8960          if (controller.identifier && bindings) {
 8961            removeControllerBindingWatches =
 8962              initializeDirectiveBindings(controllerScope, attrs, controller.instance, bindings, controllerDirective);
 8963          }
 8964
 8965          var controllerResult = controller();
 8966          if (controllerResult !== controller.instance) {
 8967            // If the controller constructor has a return value, overwrite the instance
 8968            // from setupControllers
 8969            controller.instance = controllerResult;
 8970            $element.data('$' + controllerDirective.name + 'Controller', controllerResult);
 8971            removeControllerBindingWatches && removeControllerBindingWatches();
 8972            removeControllerBindingWatches =
 8973              initializeDirectiveBindings(controllerScope, attrs, controller.instance, bindings, controllerDirective);
 8974          }
 8975        }
 8976
 8977        // Bind the required controllers to the controller, if `require` is an object and `bindToController` is truthy
 8978        forEach(controllerDirectives, function(controllerDirective, name) {
 8979          var require = controllerDirective.require;
 8980          if (controllerDirective.bindToController && !isArray(require) && isObject(require)) {
 8981            extend(elementControllers[name].instance, getControllers(name, require, $element, elementControllers));
 8982          }
 8983        });
 8984
 8985        // Handle the init and destroy lifecycle hooks on all controllers that have them
 8986        forEach(elementControllers, function(controller) {
 8987          var controllerInstance = controller.instance;
 8988          if (isFunction(controllerInstance.$onInit)) {
 8989            controllerInstance.$onInit();
 8990          }
 8991          if (isFunction(controllerInstance.$onDestroy)) {
 8992            controllerScope.$on('$destroy', function callOnDestroyHook() {
 8993              controllerInstance.$onDestroy();
 8994            });
 8995          }
 8996        });
 8997
 8998        // PRELINKING
 8999        for (i = 0, ii = preLinkFns.length; i < ii; i++) {
 9000          linkFn = preLinkFns[i];
 9001          invokeLinkFn(linkFn,
 9002              linkFn.isolateScope ? isolateScope : scope,
 9003              $element,
 9004              attrs,
 9005              linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),
 9006              transcludeFn
 9007          );
 9008        }
 9009
 9010        // RECURSION
 9011        // We only pass the isolate scope, if the isolate directive has a template,
 9012        // otherwise the child elements do not belong to the isolate directive.
 9013        var scopeToChild = scope;
 9014        if (newIsolateScopeDirective && (newIsolateScopeDirective.template || newIsolateScopeDirective.templateUrl === null)) {
 9015          scopeToChild = isolateScope;
 9016        }
 9017        childLinkFn && childLinkFn(scopeToChild, linkNode.childNodes, undefined, boundTranscludeFn);
 9018
 9019        // POSTLINKING
 9020        for (i = postLinkFns.length - 1; i >= 0; i--) {
 9021          linkFn = postLinkFns[i];
 9022          invokeLinkFn(linkFn,
 9023              linkFn.isolateScope ? isolateScope : scope,
 9024              $element,
 9025              attrs,
 9026              linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),
 9027              transcludeFn
 9028          );
 9029        }
 9030
 9031        // Trigger $postLink lifecycle hooks
 9032        forEach(elementControllers, function(controller) {
 9033          var controllerInstance = controller.instance;
 9034          if (isFunction(controllerInstance.$postLink)) {
 9035            controllerInstance.$postLink();
 9036          }
 9037        });
 9038
 9039        // This is the function that is injected as `$transclude`.
 9040        // Note: all arguments are optional!
 9041        function controllersBoundTransclude(scope, cloneAttachFn, futureParentElement, slotName) {
 9042          var transcludeControllers;
 9043          // No scope passed in:
 9044          if (!isScope(scope)) {
 9045            slotName = futureParentElement;
 9046            futureParentElement = cloneAttachFn;
 9047            cloneAttachFn = scope;
 9048            scope = undefined;
 9049          }
 9050
 9051          if (hasElementTranscludeDirective) {
 9052            transcludeControllers = elementControllers;
 9053          }
 9054          if (!futureParentElement) {
 9055            futureParentElement = hasElementTranscludeDirective ? $element.parent() : $element;
 9056          }
 9057          if (slotName) {
 9058            // slotTranscludeFn can be one of three things:
 9059            //  * a transclude function - a filled slot
 9060            //  * `null` - an optional slot that was not filled
 9061            //  * `undefined` - a slot that was not declared (i.e. invalid)
 9062            var slotTranscludeFn = boundTranscludeFn.$$slots[slotName];
 9063            if (slotTranscludeFn) {
 9064              return slotTranscludeFn(scope, cloneAttachFn, transcludeControllers, futureParentElement, scopeToChild);
 9065            } else if (isUndefined(slotTranscludeFn)) {
 9066              throw $compileMinErr('noslot',
 9067               'No parent directive that requires a transclusion with slot name "{0}". ' +
 9068               'Element: {1}',
 9069               slotName, startingTag($element));
 9070            }
 9071          } else {
 9072            return boundTranscludeFn(scope, cloneAttachFn, transcludeControllers, futureParentElement, scopeToChild);
 9073          }
 9074        }
 9075      }
 9076    }
 9077
 9078    function getControllers(directiveName, require, $element, elementControllers) {
 9079      var value;
 9080
 9081      if (isString(require)) {
 9082        var match = require.match(REQUIRE_PREFIX_REGEXP);
 9083        var name = require.substring(match[0].length);
 9084        var inheritType = match[1] || match[3];
 9085        var optional = match[2] === '?';
 9086
 9087        //If only parents then start at the parent element
 9088        if (inheritType === '^^') {
 9089          $element = $element.parent();
 9090        //Otherwise attempt getting the controller from elementControllers in case
 9091        //the element is transcluded (and has no data) and to avoid .data if possible
 9092        } else {
 9093          value = elementControllers && elementControllers[name];
 9094          value = value && value.instance;
 9095        }
 9096
 9097        if (!value) {
 9098          var dataName = '$' + name + 'Controller';
 9099          value = inheritType ? $element.inheritedData(dataName) : $element.data(dataName);
 9100        }
 9101
 9102        if (!value && !optional) {
 9103          throw $compileMinErr('ctreq',
 9104              "Controller '{0}', required by directive '{1}', can't be found!",
 9105              name, directiveName);
 9106        }
 9107      } else if (isArray(require)) {
 9108        value = [];
 9109        for (var i = 0, ii = require.length; i < ii; i++) {
 9110          value[i] = getControllers(directiveName, require[i], $element, elementControllers);
 9111        }
 9112      } else if (isObject(require)) {
 9113        value = {};
 9114        forEach(require, function(controller, property) {
 9115          value[property] = getControllers(directiveName, controller, $element, elementControllers);
 9116        });
 9117      }
 9118
 9119      return value || null;
 9120    }
 9121
 9122    function setupControllers($element, attrs, transcludeFn, controllerDirectives, isolateScope, scope, newIsolateScopeDirective) {
 9123      var elementControllers = createMap();
 9124      for (var controllerKey in controllerDirectives) {
 9125        var directive = controllerDirectives[controllerKey];
 9126        var locals = {
 9127          $scope: directive === newIsolateScopeDirective || directive.$$isolateScope ? isolateScope : scope,
 9128          $element: $element,
 9129          $attrs: attrs,
 9130          $transclude: transcludeFn
 9131        };
 9132
 9133        var controller = directive.controller;
 9134        if (controller == '@') {
 9135          controller = attrs[directive.name];
 9136        }
 9137
 9138        var controllerInstance = $controller(controller, locals, true, directive.controllerAs);
 9139
 9140        // For directives with element transclusion the element is a comment.
 9141        // In this case .data will not attach any data.
 9142        // Instead, we save the controllers for the element in a local hash and attach to .data
 9143        // later, once we have the actual element.
 9144        elementControllers[directive.name] = controllerInstance;
 9145        $element.data('$' + directive.name + 'Controller', controllerInstance.instance);
 9146      }
 9147      return elementControllers;
 9148    }
 9149
 9150    // Depending upon the context in which a directive finds itself it might need to have a new isolated
 9151    // or child scope created. For instance:
 9152    // * if the directive has been pulled into a template because another directive with a higher priority
 9153    // asked for element transclusion
 9154    // * if the directive itself asks for transclusion but it is at the root of a template and the original
 9155    // element was replaced. See https://github.com/angular/angular.js/issues/12936
 9156    function markDirectiveScope(directives, isolateScope, newScope) {
 9157      for (var j = 0, jj = directives.length; j < jj; j++) {
 9158        directives[j] = inherit(directives[j], {$$isolateScope: isolateScope, $$newScope: newScope});
 9159      }
 9160    }
 9161
 9162    /**
 9163     * looks up the directive and decorates it with exception handling and proper parameters. We
 9164     * call this the boundDirective.
 9165     *
 9166     * @param {string} name name of the directive to look up.
 9167     * @param {string} location The directive must be found in specific format.
 9168     *   String containing any of theses characters:
 9169     *
 9170     *   * `E`: element name
 9171     *   * `A': attribute
 9172     *   * `C`: class
 9173     *   * `M`: comment
 9174     * @returns {boolean} true if directive was added.
 9175     */
 9176    function addDirective(tDirectives, name, location, maxPriority, ignoreDirective, startAttrName,
 9177                          endAttrName) {
 9178      if (name === ignoreDirective) return null;
 9179      var match = null;
 9180      if (hasDirectives.hasOwnProperty(name)) {
 9181        for (var directive, directives = $injector.get(name + Suffix),
 9182            i = 0, ii = directives.length; i < ii; i++) {
 9183          try {
 9184            directive = directives[i];
 9185            if ((isUndefined(maxPriority) || maxPriority > directive.priority) &&
 9186                 directive.restrict.indexOf(location) != -1) {
 9187              if (startAttrName) {
 9188                directive = inherit(directive, {$$start: startAttrName, $$end: endAttrName});
 9189              }
 9190              if (!directive.$$bindings) {
 9191                var bindings = directive.$$bindings =
 9192                    parseDirectiveBindings(directive, directive.name);
 9193                if (isObject(bindings.isolateScope)) {
 9194                  directive.$$isolateBindings = bindings.isolateScope;
 9195                }
 9196              }
 9197              tDirectives.push(directive);
 9198              match = directive;
 9199            }
 9200          } catch (e) { $exceptionHandler(e); }
 9201        }
 9202      }
 9203      return match;
 9204    }
 9205
 9206
 9207    /**
 9208     * looks up the directive and returns true if it is a multi-element directive,
 9209     * and therefore requires DOM nodes between -start and -end markers to be grouped
 9210     * together.
 9211     *
 9212     * @param {string} name name of the directive to look up.
 9213     * @returns true if directive was registered as multi-element.
 9214     */
 9215    function directiveIsMultiElement(name) {
 9216      if (hasDirectives.hasOwnProperty(name)) {
 9217        for (var directive, directives = $injector.get(name + Suffix),
 9218            i = 0, ii = directives.length; i < ii; i++) {
 9219          directive = directives[i];
 9220          if (directive.multiElement) {
 9221            return true;
 9222          }
 9223        }
 9224      }
 9225      return false;
 9226    }
 9227
 9228    /**
 9229     * When the element is replaced with HTML template then the new attributes
 9230     * on the template need to be merged with the existing attributes in the DOM.
 9231     * The desired effect is to have both of the attributes present.
 9232     *
 9233     * @param {object} dst destination attributes (original DOM)
 9234     * @param {object} src source attributes (from the directive template)
 9235     */
 9236    function mergeTemplateAttributes(dst, src) {
 9237      var srcAttr = src.$attr,
 9238          dstAttr = dst.$attr,
 9239          $element = dst.$$element;
 9240
 9241      // reapply the old attributes to the new element
 9242      forEach(dst, function(value, key) {
 9243        if (key.charAt(0) != '$') {
 9244          if (src[key] && src[key] !== value) {
 9245            value += (key === 'style' ? ';' : ' ') + src[key];
 9246          }
 9247          dst.$set(key, value, true, srcAttr[key]);
 9248        }
 9249      });
 9250
 9251      // copy the new attributes on the old attrs object
 9252      forEach(src, function(value, key) {
 9253        if (key == 'class') {
 9254          safeAddClass($element, value);
 9255          dst['class'] = (dst['class'] ? dst['class'] + ' ' : '') + value;
 9256        } else if (key == 'style') {
 9257          $element.attr('style', $element.attr('style') + ';' + value);
 9258          dst['style'] = (dst['style'] ? dst['style'] + ';' : '') + value;
 9259          // `dst` will never contain hasOwnProperty as DOM parser won't let it.
 9260          // You will get an "InvalidCharacterError: DOM Exception 5" error if you
 9261          // have an attribute like "has-own-property" or "data-has-own-property", etc.
 9262        } else if (key.charAt(0) != '$' && !dst.hasOwnProperty(key)) {
 9263          dst[key] = value;
 9264          dstAttr[key] = srcAttr[key];
 9265        }
 9266      });
 9267    }
 9268
 9269
 9270    function compileTemplateUrl(directives, $compileNode, tAttrs,
 9271        $rootElement, childTranscludeFn, preLinkFns, postLinkFns, previousCompileContext) {
 9272      var linkQueue = [],
 9273          afterTemplateNodeLinkFn,
 9274          afterTemplateChildLinkFn,
 9275          beforeTemplateCompileNode = $compileNode[0],
 9276          origAsyncDirective = directives.shift(),
 9277          derivedSyncDirective = inherit(origAsyncDirective, {
 9278            templateUrl: null, transclude: null, replace: null, $$originalDirective: origAsyncDirective
 9279          }),
 9280          templateUrl = (isFunction(origAsyncDirective.templateUrl))
 9281              ? origAsyncDirective.templateUrl($compileNode, tAttrs)
 9282              : origAsyncDirective.templateUrl,
 9283          templateNamespace = origAsyncDirective.templateNamespace;
 9284
 9285      $compileNode.empty();
 9286
 9287      $templateRequest(templateUrl)
 9288        .then(function(content) {
 9289          var compileNode, tempTemplateAttrs, $template, childBoundTranscludeFn;
 9290
 9291          content = denormalizeTemplate(content);
 9292
 9293          if (origAsyncDirective.replace) {
 9294            if (jqLiteIsTextNode(content)) {
 9295              $template = [];
 9296            } else {
 9297              $template = removeComments(wrapTemplate(templateNamespace, trim(content)));
 9298            }
 9299            compileNode = $template[0];
 9300
 9301            if ($template.length != 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {
 9302              throw $compileMinErr('tplrt',
 9303                  "Template for directive '{0}' must have exactly one root element. {1}",
 9304                  origAsyncDirective.name, templateUrl);
 9305            }
 9306
 9307            tempTemplateAttrs = {$attr: {}};
 9308            replaceWith($rootElement, $compileNode, compileNode);
 9309            var templateDirectives = collectDirectives(compileNode, [], tempTemplateAttrs);
 9310
 9311            if (isObject(origAsyncDirective.scope)) {
 9312              // the original directive that caused the template to be loaded async required
 9313              // an isolate scope
 9314              markDirectiveScope(templateDirectives, true);
 9315            }
 9316            directives = templateDirectives.concat(directives);
 9317            mergeTemplateAttributes(tAttrs, tempTemplateAttrs);
 9318          } else {
 9319            compileNode = beforeTemplateCompileNode;
 9320            $compileNode.html(content);
 9321          }
 9322
 9323          directives.unshift(derivedSyncDirective);
 9324
 9325          afterTemplateNodeLinkFn = applyDirectivesToNode(directives, compileNode, tAttrs,
 9326              childTranscludeFn, $compileNode, origAsyncDirective, preLinkFns, postLinkFns,
 9327              previousCompileContext);
 9328          forEach($rootElement, function(node, i) {
 9329            if (node == compileNode) {
 9330              $rootElement[i] = $compileNode[0];
 9331            }
 9332          });
 9333          afterTemplateChildLinkFn = compileNodes($compileNode[0].childNodes, childTranscludeFn);
 9334
 9335          while (linkQueue.length) {
 9336            var scope = linkQueue.shift(),
 9337                beforeTemplateLinkNode = linkQueue.shift(),
 9338                linkRootElement = linkQueue.shift(),
 9339                boundTranscludeFn = linkQueue.shift(),
 9340                linkNode = $compileNode[0];
 9341
 9342            if (scope.$$destroyed) continue;
 9343
 9344            if (beforeTemplateLinkNode !== beforeTemplateCompileNode) {
 9345              var oldClasses = beforeTemplateLinkNode.className;
 9346
 9347              if (!(previousCompileContext.hasElementTranscludeDirective &&
 9348                  origAsyncDirective.replace)) {
 9349                // it was cloned therefore we have to clone as well.
 9350                linkNode = jqLiteClone(compileNode);
 9351              }
 9352              replaceWith(linkRootElement, jqLite(beforeTemplateLinkNode), linkNode);
 9353
 9354              // Copy in CSS classes from original node
 9355              safeAddClass(jqLite(linkNode), oldClasses);
 9356            }
 9357            if (afterTemplateNodeLinkFn.transcludeOnThisElement) {
 9358              childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);
 9359            } else {
 9360              childBoundTranscludeFn = boundTranscludeFn;
 9361            }
 9362            afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, linkNode, $rootElement,
 9363              childBoundTranscludeFn);
 9364          }
 9365          linkQueue = null;
 9366        });
 9367
 9368      return function delayedNodeLinkFn(ignoreChildLinkFn, scope, node, rootElement, boundTranscludeFn) {
 9369        var childBoundTranscludeFn = boundTranscludeFn;
 9370        if (scope.$$destroyed) return;
 9371        if (linkQueue) {
 9372          linkQueue.push(scope,
 9373                         node,
 9374                         rootElement,
 9375                         childBoundTranscludeFn);
 9376        } else {
 9377          if (afterTemplateNodeLinkFn.transcludeOnThisElement) {
 9378            childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);
 9379          }
 9380          afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, node, rootElement, childBoundTranscludeFn);
 9381        }
 9382      };
 9383    }
 9384
 9385
 9386    /**
 9387     * Sorting function for bound directives.
 9388     */
 9389    function byPriority(a, b) {
 9390      var diff = b.priority - a.priority;
 9391      if (diff !== 0) return diff;
 9392      if (a.name !== b.name) return (a.name < b.name) ? -1 : 1;
 9393      return a.index - b.index;
 9394    }
 9395
 9396    function assertNoDuplicate(what, previousDirective, directive, element) {
 9397
 9398      function wrapModuleNameIfDefined(moduleName) {
 9399        return moduleName ?
 9400          (' (module: ' + moduleName + ')') :
 9401          '';
 9402      }
 9403
 9404      if (previousDirective) {
 9405        throw $compileMinErr('multidir', 'Multiple directives [{0}{1}, {2}{3}] asking for {4} on: {5}',
 9406            previousDirective.name, wrapModuleNameIfDefined(previousDirective.$$moduleName),
 9407            directive.name, wrapModuleNameIfDefined(directive.$$moduleName), what, startingTag(element));
 9408      }
 9409    }
 9410
 9411
 9412    function addTextInterpolateDirective(directives, text) {
 9413      var interpolateFn = $interpolate(text, true);
 9414      if (interpolateFn) {
 9415        directives.push({
 9416          priority: 0,
 9417          compile: function textInterpolateCompileFn(templateNode) {
 9418            var templateNodeParent = templateNode.parent(),
 9419                hasCompileParent = !!templateNodeParent.length;
 9420
 9421            // When transcluding a template that has bindings in the root
 9422            // we don't have a parent and thus need to add the class during linking fn.
 9423            if (hasCompileParent) compile.$$addBindingClass(templateNodeParent);
 9424
 9425            return function textInterpolateLinkFn(scope, node) {
 9426              var parent = node.parent();
 9427              if (!hasCompileParent) compile.$$addBindingClass(parent);
 9428              compile.$$addBindingInfo(parent, interpolateFn.expressions);
 9429              scope.$watch(interpolateFn, function interpolateFnWatchAction(value) {
 9430                node[0].nodeValue = value;
 9431              });
 9432            };
 9433          }
 9434        });
 9435      }
 9436    }
 9437
 9438
 9439    function wrapTemplate(type, template) {
 9440      type = lowercase(type || 'html');
 9441      switch (type) {
 9442      case 'svg':
 9443      case 'math':
 9444        var wrapper = document.createElement('div');
 9445        wrapper.innerHTML = '<' + type + '>' + template + '</' + type + '>';
 9446        return wrapper.childNodes[0].childNodes;
 9447      default:
 9448        return template;
 9449      }
 9450    }
 9451
 9452
 9453    function getTrustedContext(node, attrNormalizedName) {
 9454      if (attrNormalizedName == "srcdoc") {
 9455        return $sce.HTML;
 9456      }
 9457      var tag = nodeName_(node);
 9458      // maction[xlink:href] can source SVG.  It's not limited to <maction>.
 9459      if (attrNormalizedName == "xlinkHref" ||
 9460          (tag == "form" && attrNormalizedName == "action") ||
 9461          (tag != "img" && (attrNormalizedName == "src" ||
 9462                            attrNormalizedName == "ngSrc"))) {
 9463        return $sce.RESOURCE_URL;
 9464      }
 9465    }
 9466
 9467
 9468    function addAttrInterpolateDirective(node, directives, value, name, allOrNothing) {
 9469      var trustedContext = getTrustedContext(node, name);
 9470      allOrNothing = ALL_OR_NOTHING_ATTRS[name] || allOrNothing;
 9471
 9472      var interpolateFn = $interpolate(value, true, trustedContext, allOrNothing);
 9473
 9474      // no interpolation found -> ignore
 9475      if (!interpolateFn) return;
 9476
 9477
 9478      if (name === "multiple" && nodeName_(node) === "select") {
 9479        throw $compileMinErr("selmulti",
 9480            "Binding to the 'multiple' attribute is not supported. Element: {0}",
 9481            startingTag(node));
 9482      }
 9483
 9484      directives.push({
 9485        priority: 100,
 9486        compile: function() {
 9487            return {
 9488              pre: function attrInterpolatePreLinkFn(scope, element, attr) {
 9489                var $$observers = (attr.$$observers || (attr.$$observers = createMap()));
 9490
 9491                if (EVENT_HANDLER_ATTR_REGEXP.test(name)) {
 9492                  throw $compileMinErr('nodomevents',
 9493                      "Interpolations for HTML DOM event attributes are disallowed.  Please use the " +
 9494                          "ng- versions (such as ng-click instead of onclick) instead.");
 9495                }
 9496
 9497                // If the attribute has changed since last $interpolate()ed
 9498                var newValue = attr[name];
 9499                if (newValue !== value) {
 9500                  // we need to interpolate again since the attribute value has been updated
 9501                  // (e.g. by another directive's compile function)
 9502                  // ensure unset/empty values make interpolateFn falsy
 9503                  interpolateFn = newValue && $interpolate(newValue, true, trustedContext, allOrNothing);
 9504                  value = newValue;
 9505                }
 9506
 9507                // if attribute was updated so that there is no interpolation going on we don't want to
 9508                // register any observers
 9509                if (!interpolateFn) return;
 9510
 9511                // initialize attr object so that it's ready in case we need the value for isolate
 9512                // scope initialization, otherwise the value would not be available from isolate
 9513                // directive's linking fn during linking phase
 9514                attr[name] = interpolateFn(scope);
 9515
 9516                ($$observers[name] || ($$observers[name] = [])).$$inter = true;
 9517                (attr.$$observers && attr.$$observers[name].$$scope || scope).
 9518                  $watch(interpolateFn, function interpolateFnWatchAction(newValue, oldValue) {
 9519                    //special case for class attribute addition + removal
 9520                    //so that class changes can tap into the animation
 9521                    //hooks provided by the $animate service. Be sure to
 9522                    //skip animations when the first digest occurs (when
 9523                    //both the new and the old values are the same) since
 9524                    //the CSS classes are the non-interpolated values
 9525                    if (name === 'class' && newValue != oldValue) {
 9526                      attr.$updateClass(newValue, oldValue);
 9527                    } else {
 9528                      attr.$set(name, newValue);
 9529                    }
 9530                  });
 9531              }
 9532            };
 9533          }
 9534      });
 9535    }
 9536
 9537
 9538    /**
 9539     * This is a special jqLite.replaceWith, which can replace items which
 9540     * have no parents, provided that the containing jqLite collection is provided.
 9541     *
 9542     * @param {JqLite=} $rootElement The root of the compile tree. Used so that we can replace nodes
 9543     *                               in the root of the tree.
 9544     * @param {JqLite} elementsToRemove The jqLite element which we are going to replace. We keep
 9545     *                                  the shell, but replace its DOM node reference.
 9546     * @param {Node} newNode The new DOM node.
 9547     */
 9548    function replaceWith($rootElement, elementsToRemove, newNode) {
 9549      var firstElementToRemove = elementsToRemove[0],
 9550          removeCount = elementsToRemove.length,
 9551          parent = firstElementToRemove.parentNode,
 9552          i, ii;
 9553
 9554      if ($rootElement) {
 9555        for (i = 0, ii = $rootElement.length; i < ii; i++) {
 9556          if ($rootElement[i] == firstElementToRemove) {
 9557            $rootElement[i++] = newNode;
 9558            for (var j = i, j2 = j + removeCount - 1,
 9559                     jj = $rootElement.length;
 9560                 j < jj; j++, j2++) {
 9561              if (j2 < jj) {
 9562                $rootElement[j] = $rootElement[j2];
 9563              } else {
 9564                delete $rootElement[j];
 9565              }
 9566            }
 9567            $rootElement.length -= removeCount - 1;
 9568
 9569            // If the replaced element is also the jQuery .context then replace it
 9570            // .context is a deprecated jQuery api, so we should set it only when jQuery set it
 9571            // http://api.jquery.com/context/
 9572            if ($rootElement.context === firstElementToRemove) {
 9573              $rootElement.context = newNode;
 9574            }
 9575            break;
 9576          }
 9577        }
 9578      }
 9579
 9580      if (parent) {
 9581        parent.replaceChild(newNode, firstElementToRemove);
 9582      }
 9583
 9584      // Append all the `elementsToRemove` to a fragment. This will...
 9585      // - remove them from the DOM
 9586      // - allow them to still be traversed with .nextSibling
 9587      // - allow a single fragment.qSA to fetch all elements being removed
 9588      var fragment = document.createDocumentFragment();
 9589      for (i = 0; i < removeCount; i++) {
 9590        fragment.appendChild(elementsToRemove[i]);
 9591      }
 9592
 9593      if (jqLite.hasData(firstElementToRemove)) {
 9594        // Copy over user data (that includes Angular's $scope etc.). Don't copy private
 9595        // data here because there's no public interface in jQuery to do that and copying over
 9596        // event listeners (which is the main use of private data) wouldn't work anyway.
 9597        jqLite.data(newNode, jqLite.data(firstElementToRemove));
 9598
 9599        // Remove $destroy event listeners from `firstElementToRemove`
 9600        jqLite(firstElementToRemove).off('$destroy');
 9601      }
 9602
 9603      // Cleanup any data/listeners on the elements and children.
 9604      // This includes invoking the $destroy event on any elements with listeners.
 9605      jqLite.cleanData(fragment.querySelectorAll('*'));
 9606
 9607      // Update the jqLite collection to only contain the `newNode`
 9608      for (i = 1; i < removeCount; i++) {
 9609        delete elementsToRemove[i];
 9610      }
 9611      elementsToRemove[0] = newNode;
 9612      elementsToRemove.length = 1;
 9613    }
 9614
 9615
 9616    function cloneAndAnnotateFn(fn, annotation) {
 9617      return extend(function() { return fn.apply(null, arguments); }, fn, annotation);
 9618    }
 9619
 9620
 9621    function invokeLinkFn(linkFn, scope, $element, attrs, controllers, transcludeFn) {
 9622      try {
 9623        linkFn(scope, $element, attrs, controllers, transcludeFn);
 9624      } catch (e) {
 9625        $exceptionHandler(e, startingTag($element));
 9626      }
 9627    }
 9628
 9629
 9630    // Set up $watches for isolate scope and controller bindings. This process
 9631    // only occurs for isolate scopes and new scopes with controllerAs.
 9632    function initializeDirectiveBindings(scope, attrs, destination, bindings, directive) {
 9633      var removeWatchCollection = [];
 9634      var changes;
 9635      forEach(bindings, function initializeBinding(definition, scopeName) {
 9636        var attrName = definition.attrName,
 9637        optional = definition.optional,
 9638        mode = definition.mode, // @, =, or &
 9639        lastValue,
 9640        parentGet, parentSet, compare, removeWatch;
 9641
 9642        switch (mode) {
 9643
 9644          case '@':
 9645            if (!optional && !hasOwnProperty.call(attrs, attrName)) {
 9646              destination[scopeName] = attrs[attrName] = void 0;
 9647            }
 9648            attrs.$observe(attrName, function(value) {
 9649              if (isString(value)) {
 9650                var oldValue = destination[scopeName];
 9651                recordChanges(scopeName, value, oldValue);
 9652                destination[scopeName] = value;
 9653              }
 9654            });
 9655            attrs.$$observers[attrName].$$scope = scope;
 9656            lastValue = attrs[attrName];
 9657            if (isString(lastValue)) {
 9658              // If the attribute has been provided then we trigger an interpolation to ensure
 9659              // the value is there for use in the link fn
 9660              destination[scopeName] = $interpolate(lastValue)(scope);
 9661            } else if (isBoolean(lastValue)) {
 9662              // If the attributes is one of the BOOLEAN_ATTR then Angular will have converted
 9663              // the value to boolean rather than a string, so we special case this situation
 9664              destination[scopeName] = lastValue;
 9665            }
 9666            break;
 9667
 9668          case '=':
 9669            if (!hasOwnProperty.call(attrs, attrName)) {
 9670              if (optional) break;
 9671              attrs[attrName] = void 0;
 9672            }
 9673            if (optional && !attrs[attrName]) break;
 9674
 9675            parentGet = $parse(attrs[attrName]);
 9676            if (parentGet.literal) {
 9677              compare = equals;
 9678            } else {
 9679              compare = function simpleCompare(a, b) { return a === b || (a !== a && b !== b); };
 9680            }
 9681            parentSet = parentGet.assign || function() {
 9682              // reset the change, or we will throw this exception on every $digest
 9683              lastValue = destination[scopeName] = parentGet(scope);
 9684              throw $compileMinErr('nonassign',
 9685                  "Expression '{0}' in attribute '{1}' used with directive '{2}' is non-assignable!",
 9686                  attrs[attrName], attrName, directive.name);
 9687            };
 9688            lastValue = destination[scopeName] = parentGet(scope);
 9689            var parentValueWatch = function parentValueWatch(parentValue) {
 9690              if (!compare(parentValue, destination[scopeName])) {
 9691                // we are out of sync and need to copy
 9692                if (!compare(parentValue, lastValue)) {
 9693                  // parent changed and it has precedence
 9694                  destination[scopeName] = parentValue;
 9695                } else {
 9696                  // if the parent can be assigned then do so
 9697                  parentSet(scope, parentValue = destination[scopeName]);
 9698                }
 9699              }
 9700              return lastValue = parentValue;
 9701            };
 9702            parentValueWatch.$stateful = true;
 9703            if (definition.collection) {
 9704              removeWatch = scope.$watchCollection(attrs[attrName], parentValueWatch);
 9705            } else {
 9706              removeWatch = scope.$watch($parse(attrs[attrName], parentValueWatch), null, parentGet.literal);
 9707            }
 9708            removeWatchCollection.push(removeWatch);
 9709            break;
 9710
 9711          case '<':
 9712            if (!hasOwnProperty.call(attrs, attrName)) {
 9713              if (optional) break;
 9714              attrs[attrName] = void 0;
 9715            }
 9716            if (optional && !attrs[attrName]) break;
 9717
 9718            parentGet = $parse(attrs[attrName]);
 9719
 9720            destination[scopeName] = parentGet(scope);
 9721
 9722            removeWatch = scope.$watch(parentGet, function parentValueWatchAction(newParentValue) {
 9723              var oldValue = destination[scopeName];
 9724              recordChanges(scopeName, newParentValue, oldValue);
 9725              destination[scopeName] = newParentValue;
 9726            }, parentGet.literal);
 9727
 9728            removeWatchCollection.push(removeWatch);
 9729            break;
 9730
 9731          case '&':
 9732            // Don't assign Object.prototype method to scope
 9733            parentGet = attrs.hasOwnProperty(attrName) ? $parse(attrs[attrName]) : noop;
 9734
 9735            // Don't assign noop to destination if expression is not valid
 9736            if (parentGet === noop && optional) break;
 9737
 9738            destination[scopeName] = function(locals) {
 9739              return parentGet(scope, locals);
 9740            };
 9741            break;
 9742        }
 9743      });
 9744
 9745      function recordChanges(key, currentValue, previousValue) {
 9746        if (isFunction(destination.$onChanges) && currentValue !== previousValue) {
 9747          // If we have not already scheduled the top level onChangesQueue handler then do so now
 9748          if (!onChangesQueue) {
 9749            scope.$$postDigest(flushOnChangesQueue);
 9750            onChangesQueue = [];
 9751          }
 9752          // If we have not already queued a trigger of onChanges for this controller then do so now
 9753          if (!changes) {
 9754            changes = {};
 9755            onChangesQueue.push(triggerOnChangesHook);
 9756          }
 9757          // If the has been a change on this property already then we need to reuse the previous value
 9758          if (changes[key]) {
 9759            previousValue = changes[key].previousValue;
 9760          }
 9761          // Store this change
 9762          changes[key] = {previousValue: previousValue, currentValue: currentValue};
 9763        }
 9764      }
 9765
 9766      function triggerOnChangesHook() {
 9767        destination.$onChanges(changes);
 9768        // Now clear the changes so that we schedule onChanges when more changes arrive
 9769        changes = undefined;
 9770      }
 9771
 9772      return removeWatchCollection.length && function removeWatches() {
 9773        for (var i = 0, ii = removeWatchCollection.length; i < ii; ++i) {
 9774          removeWatchCollection[i]();
 9775        }
 9776      };
 9777    }
 9778  }];
 9779}
 9780
 9781var PREFIX_REGEXP = /^((?:x|data)[\:\-_])/i;
 9782/**
 9783 * Converts all accepted directives format into proper directive name.
 9784 * @param name Name to normalize
 9785 */
 9786function directiveNormalize(name) {
 9787  return camelCase(name.replace(PREFIX_REGEXP, ''));
 9788}
 9789
 9790/**
 9791 * @ngdoc type
 9792 * @name $compile.directive.Attributes
 9793 *
 9794 * @description
 9795 * A shared object between directive compile / linking functions which contains normalized DOM
 9796 * element attributes. The values reflect current binding state `{{ }}`. The normalization is
 9797 * needed since all of these are treated as equivalent in Angular:
 9798 *
 9799 * ```
 9800 *    <span ng:bind="a" ng-bind="a" data-ng-bind="a" x-ng-bind="a">
 9801 * ```
 9802 */
 9803
 9804/**
 9805 * @ngdoc property
 9806 * @name $compile.directive.Attributes#$attr
 9807 *
 9808 * @description
 9809 * A map of DOM element attribute names to the normalized name. This is
 9810 * needed to do reverse lookup from normalized name back to actual name.
 9811 */
 9812
 9813
 9814/**
 9815 * @ngdoc method
 9816 * @name $compile.directive.Attributes#$set
 9817 * @kind function
 9818 *
 9819 * @description
 9820 * Set DOM element attribute value.
 9821 *
 9822 *
 9823 * @param {string} name Normalized element attribute name of the property to modify. The name is
 9824 *          reverse-translated using the {@link ng.$compile.directive.Attributes#$attr $attr}
 9825 *          property to the original name.
 9826 * @param {string} value Value to set the attribute to. The value can be an interpolated string.
 9827 */
 9828
 9829
 9830
 9831/**
 9832 * Closure compiler type information
 9833 */
 9834
 9835function nodesetLinkingFn(
 9836  /* angular.Scope */ scope,
 9837  /* NodeList */ nodeList,
 9838  /* Element */ rootElement,
 9839  /* function(Function) */ boundTranscludeFn
 9840) {}
 9841
 9842function directiveLinkingFn(
 9843  /* nodesetLinkingFn */ nodesetLinkingFn,
 9844  /* angular.Scope */ scope,
 9845  /* Node */ node,
 9846  /* Element */ rootElement,
 9847  /* function(Function) */ boundTranscludeFn
 9848) {}
 9849
 9850function tokenDifference(str1, str2) {
 9851  var values = '',
 9852      tokens1 = str1.split(/\s+/),
 9853      tokens2 = str2.split(/\s+/);
 9854
 9855  outer:
 9856  for (var i = 0; i < tokens1.length; i++) {
 9857    var token = tokens1[i];
 9858    for (var j = 0; j < tokens2.length; j++) {
 9859      if (token == tokens2[j]) continue outer;
 9860    }
 9861    values += (values.length > 0 ? ' ' : '') + token;
 9862  }
 9863  return values;
 9864}
 9865
 9866function removeComments(jqNodes) {
 9867  jqNodes = jqLite(jqNodes);
 9868  var i = jqNodes.length;
 9869
 9870  if (i <= 1) {
 9871    return jqNodes;
 9872  }
 9873
 9874  while (i--) {
 9875    var node = jqNodes[i];
 9876    if (node.nodeType === NODE_TYPE_COMMENT) {
 9877      splice.call(jqNodes, i, 1);
 9878    }
 9879  }
 9880  return jqNodes;
 9881}
 9882
 9883var $controllerMinErr = minErr('$controller');
 9884
 9885
 9886var CNTRL_REG = /^(\S+)(\s+as\s+([\w$]+))?$/;
 9887function identifierForController(controller, ident) {
 9888  if (ident && isString(ident)) return ident;
 9889  if (isString(controller)) {
 9890    var match = CNTRL_REG.exec(controller);
 9891    if (match) return match[3];
 9892  }
 9893}
 9894
 9895
 9896/**
 9897 * @ngdoc provider
 9898 * @name $controllerProvider
 9899 * @description
 9900 * The {@link ng.$controller $controller service} is used by Angular to create new
 9901 * controllers.
 9902 *
 9903 * This provider allows controller registration via the
 9904 * {@link ng.$controllerProvider#register register} method.
 9905 */
 9906function $ControllerProvider() {
 9907  var controllers = {},
 9908      globals = false;
 9909
 9910  /**
 9911   * @ngdoc method
 9912   * @name $controllerProvider#has
 9913   * @param {string} name Controller name to check.
 9914   */
 9915  this.has = function(name) {
 9916    return controllers.hasOwnProperty(name);
 9917  };
 9918
 9919  /**
 9920   * @ngdoc method
 9921   * @name $controllerProvider#register
 9922   * @param {string|Object} name Controller name, or an object map of controllers where the keys are
 9923   *    the names and the values are the constructors.
 9924   * @param {Function|Array} constructor Controller constructor fn (optionally decorated with DI
 9925   *    annotations in the array notation).
 9926   */
 9927  this.register = function(name, constructor) {
 9928    assertNotHasOwnProperty(name, 'controller');
 9929    if (isObject(name)) {
 9930      extend(controllers, name);
 9931    } else {
 9932      controllers[name] = constructor;
 9933    }
 9934  };
 9935
 9936  /**
 9937   * @ngdoc method
 9938   * @name $controllerProvider#allowGlobals
 9939   * @description If called, allows `$controller` to find controller constructors on `window`
 9940   */
 9941  this.allowGlobals = function() {
 9942    globals = true;
 9943  };
 9944
 9945
 9946  this.$get = ['$injector', '$window', function($injector, $window) {
 9947
 9948    /**
 9949     * @ngdoc service
 9950     * @name $controller
 9951     * @requires $injector
 9952     *
 9953     * @param {Function|string} constructor If called with a function then it's considered to be the
 9954     *    controller constructor function. Otherwise it's considered to be a string which is used
 9955     *    to retrieve the controller constructor using the following steps:
 9956     *
 9957     *    * check if a controller with given name is registered via `$controllerProvider`
 9958     *    * check if evaluating the string on the current scope returns a constructor
 9959     *    * if $controllerProvider#allowGlobals, check `window[constructor]` on the global
 9960     *      `window` object (not recommended)
 9961     *
 9962     *    The string can use the `controller as property` syntax, where the controller instance is published
 9963     *    as the specified property on the `scope`; the `scope` must be injected into `locals` param for this
 9964     *    to work correctly.
 9965     *
 9966     * @param {Object} locals Injection locals for Controller.
 9967     * @return {Object} Instance of given controller.
 9968     *
 9969     * @description
 9970     * `$controller` service is responsible for instantiating controllers.
 9971     *
 9972     * It's just a simple call to {@link auto.$injector $injector}, but extracted into
 9973     * a service, so that one can override this service with [BC version](https://gist.github.com/1649788).
 9974     */
 9975    return function $controller(expression, locals, later, ident) {
 9976      // PRIVATE API:
 9977      //   param `later` --- indicates that the controller's constructor is invoked at a later time.
 9978      //                     If true, $controller will allocate the object with the correct
 9979      //                     prototype chain, but will not invoke the controller until a returned
 9980      //                     callback is invoked.
 9981      //   param `ident` --- An optional label which overrides the label parsed from the controller
 9982      //                     expression, if any.
 9983      var instance, match, constructor, identifier;
 9984      later = later === true;
 9985      if (ident && isString(ident)) {
 9986        identifier = ident;
 9987      }
 9988
 9989      if (isString(expression)) {
 9990        match = expression.match(CNTRL_REG);
 9991        if (!match) {
 9992          throw $controllerMinErr('ctrlfmt',
 9993            "Badly formed controller string '{0}'. " +
 9994            "Must match `__name__ as __id__` or `__name__`.", expression);
 9995        }
 9996        constructor = match[1],
 9997        identifier = identifier || match[3];
 9998        expression = controllers.hasOwnProperty(constructor)
 9999            ? controllers[constructor]
10000            : getter(locals.$scope, constructor, true) ||
10001                (globals ? getter($window, constructor, true) : undefined);
10002
10003        assertArgFn(expression, constructor, true);
10004      }
10005
10006      if (later) {
10007        // Instantiate controller later:
10008        // This machinery is used to create an instance of the object before calling the
10009        // controller's constructor itself.
10010        //
10011        // This allows properties to be added to the controller before the constructor is
10012        // invoked. Primarily, this is used for isolate scope bindings in $compile.
10013        //
10014        // This feature is not intended for use by applications, and is thus not documented
10015        // publicly.
10016        // Object creation: http://jsperf.com/create-constructor/2
10017        var controllerPrototype = (isArray(expression) ?
10018          expression[expression.length - 1] : expression).prototype;
10019        instance = Object.create(controllerPrototype || null);
10020
10021        if (identifier) {
10022          addIdentifier(locals, identifier, instance, constructor || expression.name);
10023        }
10024
10025        var instantiate;
10026        return instantiate = extend(function $controllerInit() {
10027          var result = $injector.invoke(expression, instance, locals, constructor);
10028          if (result !== instance && (isObject(result) || isFunction(result))) {
10029            instance = result;
10030            if (identifier) {
10031              // If result changed, re-assign controllerAs value to scope.
10032              addIdentifier(locals, identifier, instance, constructor || expression.name);
10033            }
10034          }
10035          return instance;
10036        }, {
10037          instance: instance,
10038          identifier: identifier
10039        });
10040      }
10041
10042      instance = $injector.instantiate(expression, locals, constructor);
10043
10044      if (identifier) {
10045        addIdentifier(locals, identifier, instance, constructor || expression.name);
10046      }
10047
10048      return instance;
10049    };
10050
10051    function addIdentifier(locals, identifier, instance, name) {
10052      if (!(locals && isObject(locals.$scope))) {
10053        throw minErr('$controller')('noscp',
10054          "Cannot export controller '{0}' as '{1}'! No $scope object provided via `locals`.",
10055          name, identifier);
10056      }
10057
10058      locals.$scope[identifier] = instance;
10059    }
10060  }];
10061}
10062
10063/**
10064 * @ngdoc service
10065 * @name $document
10066 * @requires $window
10067 *
10068 * @description
10069 * A {@link angular.element jQuery or jqLite} wrapper for the browser's `window.document` object.
10070 *
10071 * @example
10072   <example module="documentExample">
10073     <file name="index.html">
10074       <div ng-controller="ExampleController">
10075         <p>$document title: <b ng-bind="title"></b></p>
10076         <p>window.document title: <b ng-bind="windowTitle"></b></p>
10077       </div>
10078     </file>
10079     <file name="script.js">
10080       angular.module('documentExample', [])
10081         .controller('ExampleController', ['$scope', '$document', function($scope, $document) {
10082           $scope.title = $document[0].title;
10083           $scope.windowTitle = angular.element(window.document)[0].title;
10084         }]);
10085     </file>
10086   </example>
10087 */
10088function $DocumentProvider() {
10089  this.$get = ['$window', function(window) {
10090    return jqLite(window.document);
10091  }];
10092}
10093
10094/**
10095 * @ngdoc service
10096 * @name $exceptionHandler
10097 * @requires ng.$log
10098 *
10099 * @description
10100 * Any uncaught exception in angular expressions is delegated to this service.
10101 * The default implementation simply delegates to `$log.error` which logs it into
10102 * the browser console.
10103 *
10104 * In unit tests, if `angular-mocks.js` is loaded, this service is overridden by
10105 * {@link ngMock.$exceptionHandler mock $exceptionHandler} which aids in testing.
10106 *
10107 * ## Example:
10108 *
10109 * ```js
10110 *   angular.module('exceptionOverride', []).factory('$exceptionHandler', function() {
10111 *     return function(exception, cause) {
10112 *       exception.message += ' (caused by "' + cause + '")';
10113 *       throw exception;
10114 *     };
10115 *   });
10116 * ```
10117 *
10118 * This example will override the normal action of `$exceptionHandler`, to make angular
10119 * exceptions fail hard when they happen, instead of just logging to the console.
10120 *
10121 * <hr />
10122 * Note, that code executed in event-listeners (even those registered using jqLite's `on`/`bind`
10123 * methods) does not delegate exceptions to the {@link ng.$exceptionHandler $exceptionHandler}
10124 * (unless executed during a digest).
10125 *
10126 * If you wish, you can manually delegate exceptions, e.g.
10127 * `try { ... } catch(e) { $exceptionHandler(e); }`
10128 *
10129 * @param {Error} exception Exception associated with the error.
10130 * @param {string=} cause optional information about the context in which
10131 *       the error was thrown.
10132 *
10133 */
10134function $ExceptionHandlerProvider() {
10135  this.$get = ['$log', function($log) {
10136    return function(exception, cause) {
10137      $log.error.apply($log, arguments);
10138    };
10139  }];
10140}
10141
10142var $$ForceReflowProvider = function() {
10143  this.$get = ['$document', function($document) {
10144    return function(domNode) {
10145      //the line below will force the browser to perform a repaint so
10146      //that all the animated elements within the animation frame will
10147      //be properly updated and drawn on screen. This is required to
10148      //ensure that the preparation animation is properly flushed so that
10149      //the active state picks up from there. DO NOT REMOVE THIS LINE.
10150      //DO NOT OPTIMIZE THIS LINE. THE MINIFIER WILL REMOVE IT OTHERWISE WHICH
10151      //WILL RESULT IN AN UNPREDICTABLE BUG THAT IS VERY HARD TO TRACK DOWN AND
10152      //WILL TAKE YEARS AWAY FROM YOUR LIFE.
10153      if (domNode) {
10154        if (!domNode.nodeType && domNode instanceof jqLite) {
10155          domNode = domNode[0];
10156        }
10157      } else {
10158        domNode = $document[0].body;
10159      }
10160      return domNode.offsetWidth + 1;
10161    };
10162  }];
10163};
10164
10165var APPLICATION_JSON = 'application/json';
10166var CONTENT_TYPE_APPLICATION_JSON = {'Content-Type': APPLICATION_JSON + ';charset=utf-8'};
10167var JSON_START = /^\[|^\{(?!\{)/;
10168var JSON_ENDS = {
10169  '[': /]$/,
10170  '{': /}$/
10171};
10172var JSON_PROTECTION_PREFIX = /^\)\]\}',?\n/;
10173var $httpMinErr = minErr('$http');
10174var $httpMinErrLegacyFn = function(method) {
10175  return function() {
10176    throw $httpMinErr('legacy', 'The method `{0}` on the promise returned from `$http` has been disabled.', method);
10177  };
10178};
10179
10180function serializeValue(v) {
10181  if (isObject(v)) {
10182    return isDate(v) ? v.toISOString() : toJson(v);
10183  }
10184  return v;
10185}
10186
10187
10188function $HttpParamSerializerProvider() {
10189  /**
10190   * @ngdoc service
10191   * @name $httpParamSerializer
10192   * @description
10193   *
10194   * Default {@link $http `$http`} params serializer that converts objects to strings
10195   * according to the following rules:
10196   *
10197   * * `{'foo': 'bar'}` results in `foo=bar`
10198   * * `{'foo': Date.now()}` results in `foo=2015-04-01T09%3A50%3A49.262Z` (`toISOString()` and encoded representation of a Date object)
10199   * * `{'foo': ['bar', 'baz']}` results in `foo=bar&foo=baz` (repeated key for each array element)
10200   * * `{'foo': {'bar':'baz'}}` results in `foo=%7B%22bar%22%3A%22baz%22%7D"` (stringified and encoded representation of an object)
10201   *
10202   * Note that serializer will sort the request parameters alphabetically.
10203   * */
10204
10205  this.$get = function() {
10206    return function ngParamSerializer(params) {
10207      if (!params) return '';
10208      var parts = [];
10209      forEachSorted(params, function(value, key) {
10210        if (value === null || isUndefined(value)) return;
10211        if (isArray(value)) {
10212          forEach(value, function(v) {
10213            parts.push(encodeUriQuery(key)  + '=' + encodeUriQuery(serializeValue(v)));
10214          });
10215        } else {
10216          parts.push(encodeUriQuery(key) + '=' + encodeUriQuery(serializeValue(value)));
10217        }
10218      });
10219
10220      return parts.join('&');
10221    };
10222  };
10223}
10224
10225function $HttpParamSerializerJQLikeProvider() {
10226  /**
10227   * @ngdoc service
10228   * @name $httpParamSerializerJQLike
10229   * @description
10230   *
10231   * Alternative {@link $http `$http`} params serializer that follows
10232   * jQuery's [`param()`](http://api.jquery.com/jquery.param/) method logic.
10233   * The serializer will also sort the params alphabetically.
10234   *
10235   * To use it for serializing `$http` request parameters, set it as the `paramSerializer` property:
10236   *
10237   * ```js
10238   * $http({
10239   *   url: myUrl,
10240   *   method: 'GET',
10241   *   params: myParams,
10242   *   paramSerializer: '$httpParamSerializerJQLike'
10243   * });
10244   * ```
10245   *
10246   * It is also possible to set it as the default `paramSerializer` in the
10247   * {@link $httpProvider#defaults `$httpProvider`}.
10248   *
10249   * Additionally, you can inject the serializer and use it explicitly, for example to serialize
10250   * form data for submission:
10251   *
10252   * ```js
10253   * .controller(function($http, $httpParamSerializerJQLike) {
10254   *   //...
10255   *
10256   *   $http({
10257   *     url: myUrl,
10258   *     method: 'POST',
10259   *     data: $httpParamSerializerJQLike(myData),
10260   *     headers: {
10261   *       'Content-Type': 'application/x-www-form-urlencoded'
10262   *     }
10263   *   });
10264   *
10265   * });
10266   * ```
10267   *
10268   * */
10269  this.$get = function() {
10270    return function jQueryLikeParamSerializer(params) {
10271      if (!params) return '';
10272      var parts = [];
10273      serialize(params, '', true);
10274      return parts.join('&');
10275
10276      function serialize(toSerialize, prefix, topLevel) {
10277        if (toSerialize === null || isUndefined(toSerialize)) return;
10278        if (isArray(toSerialize)) {
10279          forEach(toSerialize, function(value, index) {
10280            serialize(value, prefix + '[' + (isObject(value) ? index : '') + ']');
10281          });
10282        } else if (isObject(toSerialize) && !isDate(toSerialize)) {
10283          forEachSorted(toSerialize, function(value, key) {
10284            serialize(value, prefix +
10285                (topLevel ? '' : '[') +
10286                key +
10287                (topLevel ? '' : ']'));
10288          });
10289        } else {
10290          parts.push(encodeUriQuery(prefix) + '=' + encodeUriQuery(serializeValue(toSerialize)));
10291        }
10292      }
10293    };
10294  };
10295}
10296
10297function defaultHttpResponseTransform(data, headers) {
10298  if (isString(data)) {
10299    // Strip json vulnerability protection prefix and trim whitespace
10300    var tempData = data.replace(JSON_PROTECTION_PREFIX, '').trim();
10301
10302    if (tempData) {
10303      var contentType = headers('Content-Type');
10304      if ((contentType && (contentType.indexOf(APPLICATION_JSON) === 0)) || isJsonLike(tempData)) {
10305        data = fromJson(tempData);
10306      }
10307    }
10308  }
10309
10310  return data;
10311}
10312
10313function isJsonLike(str) {
10314    var jsonStart = str.match(JSON_START);
10315    return jsonStart && JSON_ENDS[jsonStart[0]].test(str);
10316}
10317
10318/**
10319 * Parse headers into key value object
10320 *
10321 * @param {string} headers Raw headers as a string
10322 * @returns {Object} Parsed headers as key value object
10323 */
10324function parseHeaders(headers) {
10325  var parsed = createMap(), i;
10326
10327  function fillInParsed(key, val) {
10328    if (key) {
10329      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
10330    }
10331  }
10332
10333  if (isString(headers)) {
10334    forEach(headers.split('\n'), function(line) {
10335      i = line.indexOf(':');
10336      fillInParsed(lowercase(trim(line.substr(0, i))), trim(line.substr(i + 1)));
10337    });
10338  } else if (isObject(headers)) {
10339    forEach(headers, function(headerVal, headerKey) {
10340      fillInParsed(lowercase(headerKey), trim(headerVal));
10341    });
10342  }
10343
10344  return parsed;
10345}
10346
10347
10348/**
10349 * Returns a function that provides access to parsed headers.
10350 *
10351 * Headers are lazy parsed when first requested.
10352 * @see parseHeaders
10353 *
10354 * @param {(string|Object)} headers Headers to provide access to.
10355 * @returns {function(string=)} Returns a getter function which if called with:
10356 *
10357 *   - if called with single an argument returns a single header value or null
10358 *   - if called with no arguments returns an object containing all headers.
10359 */
10360function headersGetter(headers) {
10361  var headersObj;
10362
10363  return function(name) {
10364    if (!headersObj) headersObj =  parseHeaders(headers);
10365
10366    if (name) {
10367      var value = headersObj[lowercase(name)];
10368      if (value === void 0) {
10369        value = null;
10370      }
10371      return value;
10372    }
10373
10374    return headersObj;
10375  };
10376}
10377
10378
10379/**
10380 * Chain all given functions
10381 *
10382 * This function is used for both request and response transforming
10383 *
10384 * @param {*} data Data to transform.
10385 * @param {function(string=)} headers HTTP headers getter fn.
10386 * @param {number} status HTTP status code of the response.
10387 * @param {(Function|Array.<Function>)} fns Function or an array of functions.
10388 * @returns {*} Transformed data.
10389 */
10390function transformData(data, headers, status, fns) {
10391  if (isFunction(fns)) {
10392    return fns(data, headers, status);
10393  }
10394
10395  forEach(fns, function(fn) {
10396    data = fn(data, headers, status);
10397  });
10398
10399  return data;
10400}
10401
10402
10403function isSuccess(status) {
10404  return 200 <= status && status < 300;
10405}
10406
10407
10408/**
10409 * @ngdoc provider
10410 * @name $httpProvider
10411 * @description
10412 * Use `$httpProvider` to change the default behavior of the {@link ng.$http $http} service.
10413 * */
10414function $HttpProvider() {
10415  /**
10416   * @ngdoc property
10417   * @name $httpProvider#defaults
10418   * @description
10419   *
10420   * Object containing default values for all {@link ng.$http $http} requests.
10421   *
10422   * - **`defaults.cache`** - {boolean|Object} - A boolean value or object created with
10423   * {@link ng.$cacheFactory `$cacheFactory`} to enable or disable caching of HTTP responses
10424   * by default. See {@link $http#caching $http Caching} for more information.
10425   *
10426   * - **`defaults.xsrfCookieName`** - {string} - Name of cookie containing the XSRF token.
10427   * Defaults value is `'XSRF-TOKEN'`.
10428   *
10429   * - **`defaults.xsrfHeaderName`** - {string} - Name of HTTP header to populate with the
10430   * XSRF token. Defaults value is `'X-XSRF-TOKEN'`.
10431   *
10432   * - **`defaults.headers`** - {Object} - Default headers for all $http requests.
10433   * Refer to {@link ng.$http#setting-http-headers $http} for documentation on
10434   * setting default headers.
10435   *     - **`defaults.headers.common`**
10436   *     - **`defaults.headers.post`**
10437   *     - **`defaults.headers.put`**
10438   *     - **`defaults.headers.patch`**
10439   *
10440   *
10441   * - **`defaults.paramSerializer`** - `{string|function(Object<string,string>):string}` - A function
10442   *  used to the prepare string representation of request parameters (specified as an object).
10443   *  If specified as string, it is interpreted as a function registered with the {@link auto.$injector $injector}.
10444   *  Defaults to {@link ng.$httpParamSerializer $httpParamSerializer}.
10445   *
10446   **/
10447  var defaults = this.defaults = {
10448    // transform incoming response data
10449    transformResponse: [defaultHttpResponseTransform],
10450
10451    // transform outgoing request data
10452    transformRequest: [function(d) {
10453      return isObject(d) && !isFile(d) && !isBlob(d) && !isFormData(d) ? toJson(d) : d;
10454    }],
10455
10456    // default headers
10457    headers: {
10458      common: {
10459        'Accept': 'application/json, text/plain, */*'
10460      },
10461      post:   shallowCopy(CONTENT_TYPE_APPLICATION_JSON),
10462      put:    shallowCopy(CONTENT_TYPE_APPLICATION_JSON),
10463      patch:  shallowCopy(CONTENT_TYPE_APPLICATION_JSON)
10464    },
10465
10466    xsrfCookieName: 'XSRF-TOKEN',
10467    xsrfHeaderName: 'X-XSRF-TOKEN',
10468
10469    paramSerializer: '$httpParamSerializer'
10470  };
10471
10472  var useApplyAsync = false;
10473  /**
10474   * @ngdoc method
10475   * @name $httpProvider#useApplyAsync
10476   * @description
10477   *
10478   * Configure $http service to combine processing of multiple http responses received at around
10479   * the same time via {@link ng.$rootScope.Scope#$applyAsync $rootScope.$applyAsync}. This can result in
10480   * significant performance improvement for bigger applications that make many HTTP requests
10481   * concurrently (common during application bootstrap).
10482   *
10483   * Defaults to false. If no value is specified, returns the current configured value.
10484   *
10485   * @param {boolean=} value If true, when requests are loaded, they will schedule a deferred
10486   *    "apply" on the next tick, giving time for subsequent requests in a roughly ~10ms window
10487   *    to load and share the same digest cycle.
10488   *
10489   * @returns {boolean|Object} If a value is specified, returns the $httpProvider for chaining.
10490   *    otherwise, returns the current configured value.
10491   **/
10492  this.useApplyAsync = function(value) {
10493    if (isDefined(value)) {
10494      useApplyAsync = !!value;
10495      return this;
10496    }
10497    return useApplyAsync;
10498  };
10499
10500  var useLegacyPromise = true;
10501  /**
10502   * @ngdoc method
10503   * @name $httpProvider#useLegacyPromiseExtensions
10504   * @description
10505   *
10506   * Configure `$http` service to return promises without the shorthand methods `success` and `error`.
10507   * This should be used to make sure that applications work without these methods.
10508   *
10509   * Defaults to true. If no value is specified, returns the current configured value.
10510   *
10511   * @param {boolean=} value If true, `$http` will return a promise with the deprecated legacy `success` and `error` methods.
10512   *
10513   * @returns {boolean|Object} If a value is specified, returns the $httpProvider for chaining.
10514   *    otherwise, returns the current configured value.
10515   **/
10516  this.useLegacyPromiseExtensions = function(value) {
10517    if (isDefined(value)) {
10518      useLegacyPromise = !!value;
10519      return this;
10520    }
10521    return useLegacyPromise;
10522  };
10523
10524  /**
10525   * @ngdoc property
10526   * @name $httpProvider#interceptors
10527   * @description
10528   *
10529   * Array containing service factories for all synchronous or asynchronous {@link ng.$http $http}
10530   * pre-processing of request or postprocessing of responses.
10531   *
10532   * These service factories are ordered by request, i.e. they are applied in the same order as the
10533   * array, on request, but reverse order, on response.
10534   *
10535   * {@link ng.$http#interceptors Interceptors detailed info}
10536   **/
10537  var interceptorFactories = this.interceptors = [];
10538
10539  this.$get = ['$httpBackend', '$$cookieReader', '$cacheFactory', '$rootScope', '$q', '$injector',
10540      function($httpBackend, $$cookieReader, $cacheFactory, $rootScope, $q, $injector) {
10541
10542    var defaultCache = $cacheFactory('$http');
10543
10544    /**
10545     * Make sure that default param serializer is exposed as a function
10546     */
10547    defaults.paramSerializer = isString(defaults.paramSerializer) ?
10548      $injector.get(defaults.paramSerializer) : defaults.paramSerializer;
10549
10550    /**
10551     * Interceptors stored in reverse order. Inner interceptors before outer interceptors.
10552     * The reversal is needed so that we can build up the interception chain around the
10553     * server request.
10554     */
10555    var reversedInterceptors = [];
10556
10557    forEach(interceptorFactories, function(interceptorFactory) {
10558      reversedInterceptors.unshift(isString(interceptorFactory)
10559          ? $injector.get(interceptorFactory) : $injector.invoke(interceptorFactory));
10560    });
10561
10562    /**
10563     * @ngdoc service
10564     * @kind function
10565     * @name $http
10566     * @requires ng.$httpBackend
10567     * @requires $cacheFactory
10568     * @requires $rootScope
10569     * @requires $q
10570     * @requires $injector
10571     *
10572     * @description
10573     * The `$http` service is a core Angular service that facilitates communication with the remote
10574     * HTTP servers via the browser's [XMLHttpRequest](https://developer.mozilla.org/en/xmlhttprequest)
10575     * object or via [JSONP](http://en.wikipedia.org/wiki/JSONP).
10576     *
10577     * For unit testing applications that use `$http` service, see
10578     * {@link ngMock.$httpBackend $httpBackend mock}.
10579     *
10580     * For a higher level of abstraction, please check out the {@link ngResource.$resource
10581     * $resource} service.
10582     *
10583     * The $http API is based on the {@link ng.$q deferred/promise APIs} exposed by
10584     * the $q service. While for simple usage patterns this doesn't matter much, for advanced usage
10585     * it is important to familiarize yourself with these APIs and the guarantees they provide.
10586     *
10587     *
10588     * ## General usage
10589     * The `$http` service is a function which takes a single argument — a {@link $http#usage configuration object} —
10590     * that is used to generate an HTTP request and returns  a {@link ng.$q promise}.
10591     *
10592     * ```js
10593     *   // Simple GET request example:
10594     *   $http({
10595     *     method: 'GET',
10596     *     url: '/someUrl'
10597     *   }).then(function successCallback(response) {
10598     *       // this callback will be called asynchronously
10599     *       // when the response is available
10600     *     }, function errorCallback(response) {
10601     *       // called asynchronously if an error occurs
10602     *       // or server returns response with an error status.
10603     *     });
10604     * ```
10605     *
10606     * The response object has these properties:
10607     *
10608     *   - **data** – `{string|Object}` – The response body transformed with the transform
10609     *     functions.
10610     *   - **status** – `{number}` – HTTP status code of the response.
10611     *   - **headers** – `{function([headerName])}` – Header getter function.
10612     *   - **config** – `{Object}` – The configuration object that was used to generate the request.
10613     *   - **statusText** – `{string}` – HTTP status text of the response.
10614     *
10615     * A response status code between 200 and 299 is considered a success status and
10616     * will result in the success callback being called. Note that if the response is a redirect,
10617     * XMLHttpRequest will transparently follow it, meaning that the error callback will not be
10618     * called for such responses.
10619     *
10620     *
10621     * ## Shortcut methods
10622     *
10623     * Shortcut methods are also available. All shortcut methods require passing in the URL, and
10624     * request data must be passed in for POST/PUT requests. An optional config can be passed as the
10625     * last argument.
10626     *
10627     * ```js
10628     *   $http.get('/someUrl', config).then(successCallback, errorCallback);
10629     *   $http.post('/someUrl', data, config).then(successCallback, errorCallback);
10630     * ```
10631     *
10632     * Complete list of shortcut methods:
10633     *
10634     * - {@link ng.$http#get $http.get}
10635     * - {@link ng.$http#head $http.head}
10636     * - {@link ng.$http#post $http.post}
10637     * - {@link ng.$http#put $http.put}
10638     * - {@link ng.$http#delete $http.delete}
10639     * - {@link ng.$http#jsonp $http.jsonp}
10640     * - {@link ng.$http#patch $http.patch}
10641     *
10642     *
10643     * ## Writing Unit Tests that use $http
10644     * When unit testing (using {@link ngMock ngMock}), it is necessary to call
10645     * {@link ngMock.$httpBackend#flush $httpBackend.flush()} to flush each pending
10646     * request using trained responses.
10647     *
10648     * ```
10649     * $httpBackend.expectGET(...);
10650     * $http.get(...);
10651     * $httpBackend.flush();
10652     * ```
10653     *
10654     * ## Deprecation Notice
10655     * <div class="alert alert-danger">
10656     *   The `$http` legacy promise methods `success` and `error` have been deprecated.
10657     *   Use the standard `then` method instead.
10658     *   If {@link $httpProvider#useLegacyPromiseExtensions `$httpProvider.useLegacyPromiseExtensions`} is set to
10659     *   `false` then these methods will throw {@link $http:legacy `$http/legacy`} error.
10660     * </div>
10661     *
10662     * ## Setting HTTP Headers
10663     *
10664     * The $http service will automatically add certain HTTP headers to all requests. These defaults
10665     * can be fully configured by accessing the `$httpProvider.defaults.headers` configuration
10666     * object, which currently contains this default configuration:
10667     *
10668     * - `$httpProvider.defaults.headers.common` (headers that are common for all requests):
10669     *   - `Accept: application/json, text/plain, * / *`
10670     * - `$httpProvider.defaults.headers.post`: (header defaults for POST requests)
10671     *   - `Content-Type: application/json`
10672     * - `$httpProvider.defaults.headers.put` (header defaults for PUT requests)
10673     *   - `Content-Type: application/json`
10674     *
10675     * To add or overwrite these defaults, simply add or remove a property from these configuration
10676     * objects. To add headers for an HTTP method other than POST or PUT, simply add a new object
10677     * with the lowercased HTTP method name as the key, e.g.
10678     * `$httpProvider.defaults.headers.get = { 'My-Header' : 'value' }`.
10679     *
10680     * The defaults can also be set at runtime via the `$http.defaults` object in the same
10681     * fashion. For example:
10682     *
10683     * ```
10684     * module.run(function($http) {
10685     *   $http.defaults.headers.common.Authorization = 'Basic YmVlcDpib29w';
10686     * });
10687     * ```
10688     *
10689     * In addition, you can supply a `headers` property in the config object passed when
10690     * calling `$http(config)`, which overrides the defaults without changing them globally.
10691     *
10692     * To explicitly remove a header automatically added via $httpProvider.defaults.headers on a per request basis,
10693     * Use the `headers` property, setting the desired header to `undefined`. For example:
10694     *
10695     * ```js
10696     * var req = {
10697     *  method: 'POST',
10698     *  url: 'http://example.com',
10699     *  headers: {
10700     *    'Content-Type': undefined
10701     *  },
10702     *  data: { test: 'test' }
10703     * }
10704     *
10705     * $http(req).then(function(){...}, function(){...});
10706     * ```
10707     *
10708     * ## Transforming Requests and Responses
10709     *
10710     * Both requests and responses can be transformed using transformation functions: `transformRequest`
10711     * and `transformResponse`. These properties can be a single function that returns
10712     * the transformed value (`function(data, headersGetter, status)`) or an array of such transformation functions,
10713     * which allows you to `push` or `unshift` a new transformation function into the transformation chain.
10714     *
10715     * <div class="alert alert-warning">
10716     * **Note:** Angular does not make a copy of the `data` parameter before it is passed into the `transformRequest` pipeline.
10717     * That means changes to the properties of `data` are not local to the transform function (since Javascript passes objects by reference).
10718     * For example, when calling `$http.get(url, $scope.myObject)`, modifications to the object's properties in a transformRequest
10719     * function will be reflected on the scope and in any templates where the object is data-bound.
10720     * To prevent his, transform functions should have no side-effects.
10721     * If you need to modify properties, it is recommended to make a copy of the data, or create new object to return.
10722     * </div>
10723     *
10724     * ### Default Transformations
10725     *
10726     * The `$httpProvider` provider and `$http` service expose `defaults.transformRequest` and
10727     * `defaults.transformResponse` properties. If a request does not provide its own transformations
10728     * then these will be applied.
10729     *
10730     * You can augment or replace the default transformations by modifying these properties by adding to or
10731     * replacing the array.
10732     *
10733     * Angular provides the following default transformations:
10734     *
10735     * Request transformations (`$httpProvider.defaults.transformRequest` and `$http.defaults.transformRequest`):
10736     *
10737     * - If the `data` property of the request configuration object contains an object, serialize it
10738     *   into JSON format.
10739     *
10740     * Response transformations (`$httpProvider.defaults.transformResponse` and `$http.defaults.transformResponse`):
10741     *
10742     *  - If XSRF prefix is detected, strip it (see Security Considerations section below).
10743     *  - If JSON response is detected, deserialize it using a JSON parser.
10744     *
10745     *
10746     * ### Overriding the Default Transformations Per Request
10747     *
10748     * If you wish override the request/response transformations only for a single request then provide
10749     * `transformRequest` and/or `transformResponse` properties on the configuration object passed
10750     * into `$http`.
10751     *
10752     * Note that if you provide these properties on the config object the default transformations will be
10753     * overwritten. If you wish to augment the default transformations then you must include them in your
10754     * local transformation array.
10755     *
10756     * The following code demonstrates adding a new response transformation to be run after the default response
10757     * transformations have been run.
10758     *
10759     * ```js
10760     * function appendTransform(defaults, transform) {
10761     *
10762     *   // We can't guarantee that the default transformation is an array
10763     *   defaults = angular.isArray(defaults) ? defaults : [defaults];
10764     *
10765     *   // Append the new transformation to the defaults
10766     *   return defaults.concat(transform);
10767     * }
10768     *
10769     * $http({
10770     *   url: '...',
10771     *   method: 'GET',
10772     *   transformResponse: appendTransform($http.defaults.transformResponse, function(value) {
10773     *     return doTransform(value);
10774     *   })
10775     * });
10776     * ```
10777     *
10778     *
10779     * ## Caching
10780     *
10781     * {@link ng.$http `$http`} responses are not cached by default. To enable caching, you must
10782     * set the config.cache value or the default cache value to TRUE or to a cache object (created
10783     * with {@link ng.$cacheFactory `$cacheFactory`}). If defined, the value of config.cache takes
10784     * precedence over the default cache value.
10785     *
10786     * In order to:
10787     *   * cache all responses - set the default cache value to TRUE or to a cache object
10788     *   * cache a specific response - set config.cache value to TRUE or to a cache object
10789     *
10790     * If caching is enabled, but neither the default cache nor config.cache are set to a cache object,
10791     * then the default `$cacheFactory($http)` object is used.
10792     *
10793     * The default cache value can be set by updating the
10794     * {@link ng.$http#defaults `$http.defaults.cache`} property or the
10795     * {@link $httpProvider#defaults `$httpProvider.defaults.cache`} property.
10796     *
10797     * When caching is enabled, {@link ng.$http `$http`} stores the response from the server using
10798     * the relevant cache object. The next time the same request is made, the response is returned
10799     * from the cache without sending a request to the server.
10800     *
10801     * Take note that:
10802     *
10803     *   * Only GET and JSONP requests are cached.
10804     *   * The cache key is the request URL including search parameters; headers are not considered.
10805     *   * Cached responses are returned asynchronously, in the same way as responses from the server.
10806     *   * If multiple identical requests are made using the same cache, which is not yet populated,
10807     *     one request will be made to the server and remaining requests will return the same response.
10808     *   * A cache-control header on the response does not affect if or how responses are cached.
10809     *
10810     *
10811     * ## Interceptors
10812     *
10813     * Before you start creating interceptors, be sure to understand the
10814     * {@link ng.$q $q and deferred/promise APIs}.
10815     *
10816     * For purposes of global error handling, authentication, or any kind of synchronous or
10817     * asynchronous pre-processing of request or postprocessing of responses, it is desirable to be
10818     * able to intercept requests before they are handed to the server and
10819     * responses before they are handed over to the application code that
10820     * initiated these requests. The interceptors leverage the {@link ng.$q
10821     * promise APIs} to fulfill this need for both synchronous and asynchronous pre-processing.
10822     *
10823     * The interceptors are service factories that are registered with the `$httpProvider` by
10824     * adding them to the `$httpProvider.interceptors` array. The factory is called and
10825     * injected with dependencies (if specified) and returns the interceptor.
10826     *
10827     * There are two kinds of interceptors (and two kinds of rejection interceptors):
10828     *
10829     *   * `request`: interceptors get called with a http {@link $http#usage config} object. The function is free to
10830     *     modify the `config` object or create a new one. The function needs to return the `config`
10831     *     object directly, or a promise containing the `config` or a new `config` object.
10832     *   * `requestError`: interceptor gets called when a previous interceptor threw an error or
10833     *     resolved with a rejection.
10834     *   * `response`: interceptors get called with http `response` object. The function is free to
10835     *     modify the `response` object or create a new one. The function needs to return the `response`
10836     *     object directly, or as a promise containing the `response` or a new `response` object.
10837     *   * `responseError`: interceptor gets called when a previous interceptor threw an error or
10838     *     resolved with a rejection.
10839     *
10840     *
10841     * ```js
10842     *   // register the interceptor as a service
10843     *   $provide.factory('myHttpInterceptor', function($q, dependency1, dependency2) {
10844     *     return {
10845     *       // optional method
10846     *       'request': function(config) {
10847     *         // do something on success
10848     *         return config;
10849     *       },
10850     *
10851     *       // optional method
10852     *      'requestError': function(rejection) {
10853     *         // do something on error
10854     *         if (canRecover(rejection)) {
10855     *           return responseOrNewPromise
10856     *         }
10857     *         return $q.reject(rejection);
10858     *       },
10859     *
10860     *
10861     *
10862     *       // optional method
10863     *       'response': function(response) {
10864     *         // do something on success
10865     *         return response;
10866     *       },
10867     *
10868     *       // optional method
10869     *      'responseError': function(rejection) {
10870     *         // do something on error
10871     *         if (canRecover(rejection)) {
10872     *           return responseOrNewPromise
10873     *         }
10874     *         return $q.reject(rejection);
10875     *       }
10876     *     };
10877     *   });
10878     *
10879     *   $httpProvider.interceptors.push('myHttpInterceptor');
10880     *
10881     *
10882     *   // alternatively, register the interceptor via an anonymous factory
10883     *   $httpProvider.interceptors.push(function($q, dependency1, dependency2) {
10884     *     return {
10885     *      'request': function(config) {
10886     *          // same as above
10887     *       },
10888     *
10889     *       'response': function(response) {
10890     *          // same as above
10891     *       }
10892     *     };
10893     *   });
10894     * ```
10895     *
10896     * ## Security Considerations
10897     *
10898     * When designing web applications, consider security threats from:
10899     *
10900     * - [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)
10901     * - [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery)
10902     *
10903     * Both server and the client must cooperate in order to eliminate these threats. Angular comes
10904     * pre-configured with strategies that address these issues, but for this to work backend server
10905     * cooperation is required.
10906     *
10907     * ### JSON Vulnerability Protection
10908     *
10909     * A [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)
10910     * allows third party website to turn your JSON resource URL into
10911     * [JSONP](http://en.wikipedia.org/wiki/JSONP) request under some conditions. To
10912     * counter this your server can prefix all JSON requests with following string `")]}',\n"`.
10913     * Angular will automatically strip the prefix before processing it as JSON.
10914     *
10915     * For example if your server needs to return:
10916     * ```js
10917     * ['one','two']
10918     * ```
10919     *
10920     * which is vulnerable to attack, your server can return:
10921     * ```js
10922     * )]}',
10923     * ['one','two']
10924     * ```
10925     *
10926     * Angular will strip the prefix, before processing the JSON.
10927     *
10928     *
10929     * ### Cross Site Request Forgery (XSRF) Protection
10930     *
10931     * [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery) is an attack technique by
10932     * which the attacker can trick an authenticated user into unknowingly executing actions on your
10933     * website. Angular provides a mechanism to counter XSRF. When performing XHR requests, the
10934     * $http service reads a token from a cookie (by default, `XSRF-TOKEN`) and sets it as an HTTP
10935     * header (`X-XSRF-TOKEN`). Since only JavaScript that runs on your domain could read the
10936     * cookie, your server can be assured that the XHR came from JavaScript running on your domain.
10937     * The header will not be set for cross-domain requests.
10938     *
10939     * To take advantage of this, your server needs to set a token in a JavaScript readable session
10940     * cookie called `XSRF-TOKEN` on the first HTTP GET request. On subsequent XHR requests the
10941     * server can verify that the cookie matches `X-XSRF-TOKEN` HTTP header, and therefore be sure
10942     * that only JavaScript running on your domain could have sent the request. The token must be
10943     * unique for each user and must be verifiable by the server (to prevent the JavaScript from
10944     * making up its own tokens). We recommend that the token is a digest of your site's
10945     * authentication cookie with a [salt](https://en.wikipedia.org/wiki/Salt_(cryptography&#41;)
10946     * for added security.
10947     *
10948     * The name of the headers can be specified using the xsrfHeaderName and xsrfCookieName
10949     * properties of either $httpProvider.defaults at config-time, $http.defaults at run-time,
10950     * or the per-request config object.
10951     *
10952     * In order to prevent collisions in environments where multiple Angular apps share the
10953     * same domain or subdomain, we recommend that each application uses unique cookie name.
10954     *
10955     * @param {object} config Object describing the request to be made and how it should be
10956     *    processed. The object has following properties:
10957     *
10958     *    - **method** – `{string}` – HTTP method (e.g. 'GET', 'POST', etc)
10959     *    - **url** – `{string}` – Absolute or relative URL of the resource that is being requested.
10960     *    - **params** – `{Object.<string|Object>}` – Map of strings or objects which will be serialized
10961     *      with the `paramSerializer` and appended as GET parameters.
10962     *    - **data** – `{string|Object}` – Data to be sent as the request message data.
10963     *    - **headers** – `{Object}` – Map of strings or functions which return strings representing
10964     *      HTTP headers to send to the server. If the return value of a function is null, the
10965     *      header will not be sent. Functions accept a config object as an argument.
10966     *    - **xsrfHeaderName** – `{string}` – Name of HTTP header to populate with the XSRF token.
10967     *    - **xsrfCookieName** – `{string}` – Name of cookie containing the XSRF token.
10968     *    - **transformRequest** –
10969     *      `{function(data, headersGetter)|Array.<function(data, headersGetter)>}` –
10970     *      transform function or an array of such functions. The transform function takes the http
10971     *      request body and headers and returns its transformed (typically serialized) version.
10972     *      See {@link ng.$http#overriding-the-default-transformations-per-request
10973     *      Overriding the Default Transformations}
10974     *    - **transformResponse** –
10975     *      `{function(data, headersGetter, status)|Array.<function(data, headersGetter, status)>}` –
10976     *      transform function or an array of such functions. The transform function takes the http
10977     *      response body, headers and status and returns its transformed (typically deserialized) version.
10978     *      See {@link ng.$http#overriding-the-default-transformations-per-request
10979     *      Overriding the Default Transformations}
10980     *    - **paramSerializer** - `{string|function(Object<string,string>):string}` - A function used to
10981     *      prepare the string representation of request parameters (specified as an object).
10982     *      If specified as string, it is interpreted as function registered with the
10983     *      {@link $injector $injector}, which means you can create your own serializer
10984     *      by registering it as a {@link auto.$provide#service service}.
10985     *      The default serializer is the {@link $httpParamSerializer $httpParamSerializer};
10986     *      alternatively, you can use the {@link $httpParamSerializerJQLike $httpParamSerializerJQLike}
10987     *    - **cache** – `{boolean|Object}` – A boolean value or object created with
10988     *      {@link ng.$cacheFactory `$cacheFactory`} to enable or disable caching of the HTTP response.
10989     *      See {@link $http#caching $http Caching} for more information.
10990     *    - **timeout** – `{number|Promise}` – timeout in milliseconds, or {@link ng.$q promise}
10991     *      that should abort the request when resolved.
10992     *    - **withCredentials** - `{boolean}` - whether to set the `withCredentials` flag on the
10993     *      XHR object. See [requests with credentials](https://developer.mozilla.org/docs/Web/HTTP/Access_control_CORS#Requests_with_credentials)
10994     *      for more information.
10995     *    - **responseType** - `{string}` - see
10996     *      [XMLHttpRequest.responseType](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest#xmlhttprequest-responsetype).
10997     *
10998     * @returns {HttpPromise} Returns a {@link ng.$q `Promise}` that will be resolved to a response object
10999     *                        when the request succeeds or fails.
11000     *
11001     *
11002     * @property {Array.<Object>} pendingRequests Array of config objects for currently pending
11003     *   requests. This is primarily meant to be used for debugging purposes.
11004     *
11005     *
11006     * @example
11007<example module="httpExample">
11008<file name="index.html">
11009  <div ng-controller="FetchController">
11010    <select ng-model="method" aria-label="Request method">
11011      <option>GET</option>
11012      <option>JSONP</option>
11013    </select>
11014    <input type="text" ng-model="url" size="80" aria-label="URL" />
11015    <button id="fetchbtn" ng-click="fetch()">fetch</button><br>
11016    <button id="samplegetbtn" ng-click="updateModel('GET', 'http-hello.html')">Sample GET</button>
11017    <button id="samplejsonpbtn"
11018      ng-click="updateModel('JSONP',
11019                    'https://angularjs.org/greet.php?callback=JSON_CALLBACK&name=Super%20Hero')">
11020      Sample JSONP
11021    </button>
11022    <button id="invalidjsonpbtn"
11023      ng-click="updateModel('JSONP', 'https://angularjs.org/doesntexist&callback=JSON_CALLBACK')">
11024        Invalid JSONP
11025      </button>
11026    <pre>http status code: {{status}}</pre>
11027    <pre>http response data: {{data}}</pre>
11028  </div>
11029</file>
11030<file name="script.js">
11031  angular.module('httpExample', [])
11032    .controller('FetchController', ['$scope', '$http', '$templateCache',
11033      function($scope, $http, $templateCache) {
11034        $scope.method = 'GET';
11035        $scope.url = 'http-hello.html';
11036
11037        $scope.fetch = function() {
11038          $scope.code = null;
11039          $scope.response = null;
11040
11041          $http({method: $scope.method, url: $scope.url, cache: $templateCache}).
11042            then(function(response) {
11043              $scope.status = response.status;
11044              $scope.data = response.data;
11045            }, function(response) {
11046              $scope.data = response.data || "Request failed";
11047              $scope.status = response.status;
11048          });
11049        };
11050
11051        $scope.updateModel = function(method, url) {
11052          $scope.method = method;
11053          $scope.url = url;
11054        };
11055      }]);
11056</file>
11057<file name="http-hello.html">
11058  Hello, $http!
11059</file>
11060<file name="protractor.js" type="protractor">
11061  var status = element(by.binding('status'));
11062  var data = element(by.binding('data'));
11063  var fetchBtn = element(by.id('fetchbtn'));
11064  var sampleGetBtn = element(by.id('samplegetbtn'));
11065  var sampleJsonpBtn = element(by.id('samplejsonpbtn'));
11066  var invalidJsonpBtn = element(by.id('invalidjsonpbtn'));
11067
11068  it('should make an xhr GET request', function() {
11069    sampleGetBtn.click();
11070    fetchBtn.click();
11071    expect(status.getText()).toMatch('200');
11072    expect(data.getText()).toMatch(/Hello, \$http!/);
11073  });
11074
11075// Commented out due to flakes. See https://github.com/angular/angular.js/issues/9185
11076// it('should make a JSONP request to angularjs.org', function() {
11077//   sampleJsonpBtn.click();
11078//   fetchBtn.click();
11079//   expect(status.getText()).toMatch('200');
11080//   expect(data.getText()).toMatch(/Super Hero!/);
11081// });
11082
11083  it('should make JSONP request to invalid URL and invoke the error handler',
11084      function() {
11085    invalidJsonpBtn.click();
11086    fetchBtn.click();
11087    expect(status.getText()).toMatch('0');
11088    expect(data.getText()).toMatch('Request failed');
11089  });
11090</file>
11091</example>
11092     */
11093    function $http(requestConfig) {
11094
11095      if (!isObject(requestConfig)) {
11096        throw minErr('$http')('badreq', 'Http request configuration must be an object.  Received: {0}', requestConfig);
11097      }
11098
11099      if (!isString(requestConfig.url)) {
11100        throw minErr('$http')('badreq', 'Http request configuration url must be a string.  Received: {0}', requestConfig.url);
11101      }
11102
11103      var config = extend({
11104        method: 'get',
11105        transformRequest: defaults.transformRequest,
11106        transformResponse: defaults.transformResponse,
11107        paramSerializer: defaults.paramSerializer
11108      }, requestConfig);
11109
11110      config.headers = mergeHeaders(requestConfig);
11111      config.method = uppercase(config.method);
11112      config.paramSerializer = isString(config.paramSerializer) ?
11113        $injector.get(config.paramSerializer) : config.paramSerializer;
11114
11115      var serverRequest = function(config) {
11116        var headers = config.headers;
11117        var reqData = transformData(config.data, headersGetter(headers), undefined, config.transformRequest);
11118
11119        // strip content-type if data is undefined
11120        if (isUndefined(reqData)) {
11121          forEach(headers, function(value, header) {
11122            if (lowercase(header) === 'content-type') {
11123                delete headers[header];
11124            }
11125          });
11126        }
11127
11128        if (isUndefined(config.withCredentials) && !isUndefined(defaults.withCredentials)) {
11129          config.withCredentials = defaults.withCredentials;
11130        }
11131
11132        // send request
11133        return sendReq(config, reqData).then(transformResponse, transformResponse);
11134      };
11135
11136      var chain = [serverRequest, undefined];
11137      var promise = $q.when(config);
11138
11139      // apply interceptors
11140      forEach(reversedInterceptors, function(interceptor) {
11141        if (interceptor.request || interceptor.requestError) {
11142          chain.unshift(interceptor.request, interceptor.requestError);
11143        }
11144        if (interceptor.response || interceptor.responseError) {
11145          chain.push(interceptor.response, interceptor.responseError);
11146        }
11147      });
11148
11149      while (chain.length) {
11150        var thenFn = chain.shift();
11151        var rejectFn = chain.shift();
11152
11153        promise = promise.then(thenFn, rejectFn);
11154      }
11155
11156      if (useLegacyPromise) {
11157        promise.success = function(fn) {
11158          assertArgFn(fn, 'fn');
11159
11160          promise.then(function(response) {
11161            fn(response.data, response.status, response.headers, config);
11162          });
11163          return promise;
11164        };
11165
11166        promise.error = function(fn) {
11167          assertArgFn(fn, 'fn');
11168
11169          promise.then(null, function(response) {
11170            fn(response.data, response.status, response.headers, config);
11171          });
11172          return promise;
11173        };
11174      } else {
11175        promise.success = $httpMinErrLegacyFn('success');
11176        promise.error = $httpMinErrLegacyFn('error');
11177      }
11178
11179      return promise;
11180
11181      function transformResponse(response) {
11182        // make a copy since the response must be cacheable
11183        var resp = extend({}, response);
11184        resp.data = transformData(response.data, response.headers, response.status,
11185                                  config.transformResponse);
11186        return (isSuccess(response.status))
11187          ? resp
11188          : $q.reject(resp);
11189      }
11190
11191      function executeHeaderFns(headers, config) {
11192        var headerContent, processedHeaders = {};
11193
11194        forEach(headers, function(headerFn, header) {
11195          if (isFunction(headerFn)) {
11196            headerContent = headerFn(config);
11197            if (headerContent != null) {
11198              processedHeaders[header] = headerContent;
11199            }
11200          } else {
11201            processedHeaders[header] = headerFn;
11202          }
11203        });
11204
11205        return processedHeaders;
11206      }
11207
11208      function mergeHeaders(config) {
11209        var defHeaders = defaults.headers,
11210            reqHeaders = extend({}, config.headers),
11211            defHeaderName, lowercaseDefHeaderName, reqHeaderName;
11212
11213        defHeaders = extend({}, defHeaders.common, defHeaders[lowercase(config.method)]);
11214
11215        // using for-in instead of forEach to avoid unnecessary iteration after header has been found
11216        defaultHeadersIteration:
11217        for (defHeaderName in defHeaders) {
11218          lowercaseDefHeaderName = lowercase(defHeaderName);
11219
11220          for (reqHeaderName in reqHeaders) {
11221            if (lowercase(reqHeaderName) === lowercaseDefHeaderName) {
11222              continue defaultHeadersIteration;
11223            }
11224          }
11225
11226          reqHeaders[defHeaderName] = defHeaders[defHeaderName];
11227        }
11228
11229        // execute if header value is a function for merged headers
11230        return executeHeaderFns(reqHeaders, shallowCopy(config));
11231      }
11232    }
11233
11234    $http.pendingRequests = [];
11235
11236    /**
11237     * @ngdoc method
11238     * @name $http#get
11239     *
11240     * @description
11241     * Shortcut method to perform `GET` request.
11242     *
11243     * @param {string} url Relative or absolute URL specifying the destination of the request
11244     * @param {Object=} config Optional configuration object
11245     * @returns {HttpPromise} Future object
11246     */
11247
11248    /**
11249     * @ngdoc method
11250     * @name $http#delete
11251     *
11252     * @description
11253     * Shortcut method to perform `DELETE` request.
11254     *
11255     * @param {string} url Relative or absolute URL specifying the destination of the request
11256     * @param {Object=} config Optional configuration object
11257     * @returns {HttpPromise} Future object
11258     */
11259
11260    /**
11261     * @ngdoc method
11262     * @name $http#head
11263     *
11264     * @description
11265     * Shortcut method to perform `HEAD` request.
11266     *
11267     * @param {string} url Relative or absolute URL specifying the destination of the request
11268     * @param {Object=} config Optional configuration object
11269     * @returns {HttpPromise} Future object
11270     */
11271
11272    /**
11273     * @ngdoc method
11274     * @name $http#jsonp
11275     *
11276     * @description
11277     * Shortcut method to perform `JSONP` request.
11278     *
11279     * @param {string} url Relative or absolute URL specifying the destination of the request.
11280     *                     The name of the callback should be the string `JSON_CALLBACK`.
11281     * @param {Object=} config Optional configuration object
11282     * @returns {HttpPromise} Future object
11283     */
11284    createShortMethods('get', 'delete', 'head', 'jsonp');
11285
11286    /**
11287     * @ngdoc method
11288     * @name $http#post
11289     *
11290     * @description
11291     * Shortcut method to perform `POST` request.
11292     *
11293     * @param {string} url Relative or absolute URL specifying the destination of the request
11294     * @param {*} data Request content
11295     * @param {Object=} config Optional configuration object
11296     * @returns {HttpPromise} Future object
11297     */
11298
11299    /**
11300     * @ngdoc method
11301     * @name $http#put
11302     *
11303     * @description
11304     * Shortcut method to perform `PUT` request.
11305     *
11306     * @param {string} url Relative or absolute URL specifying the destination of the request
11307     * @param {*} data Request content
11308     * @param {Object=} config Optional configuration object
11309     * @returns {HttpPromise} Future object
11310     */
11311
11312     /**
11313      * @ngdoc method
11314      * @name $http#patch
11315      *
11316      * @description
11317      * Shortcut method to perform `PATCH` request.
11318      *
11319      * @param {string} url Relative or absolute URL specifying the destination of the request
11320      * @param {*} data Request content
11321      * @param {Object=} config Optional configuration object
11322      * @returns {HttpPromise} Future object
11323      */
11324    createShortMethodsWithData('post', 'put', 'patch');
11325
11326        /**
11327         * @ngdoc property
11328         * @name $http#defaults
11329         *
11330         * @description
11331         * Runtime equivalent of the `$httpProvider.defaults` property. Allows configuration of
11332         * default headers, withCredentials as well as request and response transformations.
11333         *
11334         * See "Setting HTTP Headers" and "Transforming Requests and Responses" sections above.
11335         */
11336    $http.defaults = defaults;
11337
11338
11339    return $http;
11340
11341
11342    function createShortMethods(names) {
11343      forEach(arguments, function(name) {
11344        $http[name] = function(url, config) {
11345          return $http(extend({}, config || {}, {
11346            method: name,
11347            url: url
11348          }));
11349        };
11350      });
11351    }
11352
11353
11354    function createShortMethodsWithData(name) {
11355      forEach(arguments, function(name) {
11356        $http[name] = function(url, data, config) {
11357          return $http(extend({}, config || {}, {
11358            method: name,
11359            url: url,
11360            data: data
11361          }));
11362        };
11363      });
11364    }
11365
11366
11367    /**
11368     * Makes the request.
11369     *
11370     * !!! ACCESSES CLOSURE VARS:
11371     * $httpBackend, defaults, $log, $rootScope, defaultCache, $http.pendingRequests
11372     */
11373    function sendReq(config, reqData) {
11374      var deferred = $q.defer(),
11375          promise = deferred.promise,
11376          cache,
11377          cachedResp,
11378          reqHeaders = config.headers,
11379          url = buildUrl(config.url, config.paramSerializer(config.params));
11380
11381      $http.pendingRequests.push(config);
11382      promise.then(removePendingReq, removePendingReq);
11383
11384
11385      if ((config.cache || defaults.cache) && config.cache !== false &&
11386          (config.method === 'GET' || config.method === 'JSONP')) {
11387        cache = isObject(config.cache) ? config.cache
11388              : isObject(defaults.cache) ? defaults.cache
11389              : defaultCache;
11390      }
11391
11392      if (cache) {
11393        cachedResp = cache.get(url);
11394        if (isDefined(cachedResp)) {
11395          if (isPromiseLike(cachedResp)) {
11396            // cached request has already been sent, but there is no response yet
11397            cachedResp.then(resolvePromiseWithResult, resolvePromiseWithResult);
11398          } else {
11399            // serving from cache
11400            if (isArray(cachedResp)) {
11401              resolvePromise(cachedResp[1], cachedResp[0], shallowCopy(cachedResp[2]), cachedResp[3]);
11402            } else {
11403              resolvePromise(cachedResp, 200, {}, 'OK');
11404            }
11405          }
11406        } else {
11407          // put the promise for the non-transformed response into cache as a placeholder
11408          cache.put(url, promise);
11409        }
11410      }
11411
11412
11413      // if we won't have the response in cache, set the xsrf headers and
11414      // send the request to the backend
11415      if (isUndefined(cachedResp)) {
11416        var xsrfValue = urlIsSameOrigin(config.url)
11417            ? $$cookieReader()[config.xsrfCookieName || defaults.xsrfCookieName]
11418            : undefined;
11419        if (xsrfValue) {
11420          reqHeaders[(config.xsrfHeaderName || defaults.xsrfHeaderName)] = xsrfValue;
11421        }
11422
11423        $httpBackend(config.method, url, reqData, done, reqHeaders, config.timeout,
11424            config.withCredentials, config.responseType);
11425      }
11426
11427      return promise;
11428
11429
11430      /**
11431       * Callback registered to $httpBackend():
11432       *  - caches the response if desired
11433       *  - resolves the raw $http promise
11434       *  - calls $apply
11435       */
11436      function done(status, response, headersString, statusText) {
11437        if (cache) {
11438          if (isSuccess(status)) {
11439            cache.put(url, [status, response, parseHeaders(headersString), statusText]);
11440          } else {
11441            // remove promise from the cache
11442            cache.remove(url);
11443          }
11444        }
11445
11446        function resolveHttpPromise() {
11447          resolvePromise(response, status, headersString, statusText);
11448        }
11449
11450        if (useApplyAsync) {
11451          $rootScope.$applyAsync(resolveHttpPromise);
11452        } else {
11453          resolveHttpPromise();
11454          if (!$rootScope.$$phase) $rootScope.$apply();
11455        }
11456      }
11457
11458
11459      /**
11460       * Resolves the raw $http promise.
11461       */
11462      function resolvePromise(response, status, headers, statusText) {
11463        //status: HTTP response status code, 0, -1 (aborted by timeout / promise)
11464        status = status >= -1 ? status : 0;
11465
11466        (isSuccess(status) ? deferred.resolve : deferred.reject)({
11467          data: response,
11468          status: status,
11469          headers: headersGetter(headers),
11470          config: config,
11471          statusText: statusText
11472        });
11473      }
11474
11475      function resolvePromiseWithResult(result) {
11476        resolvePromise(result.data, result.status, shallowCopy(result.headers()), result.statusText);
11477      }
11478
11479      function removePendingReq() {
11480        var idx = $http.pendingRequests.indexOf(config);
11481        if (idx !== -1) $http.pendingRequests.splice(idx, 1);
11482      }
11483    }
11484
11485
11486    function buildUrl(url, serializedParams) {
11487      if (serializedParams.length > 0) {
11488        url += ((url.indexOf('?') == -1) ? '?' : '&') + serializedParams;
11489      }
11490      return url;
11491    }
11492  }];
11493}
11494
11495/**
11496 * @ngdoc service
11497 * @name $xhrFactory
11498 *
11499 * @description
11500 * Factory function used to create XMLHttpRequest objects.
11501 *
11502 * Replace or decorate this service to create your own custom XMLHttpRequest objects.
11503 *
11504 * ```
11505 * angular.module('myApp', [])
11506 * .factory('$xhrFactory', function() {
11507 *   return function createXhr(method, url) {
11508 *     return new window.XMLHttpRequest({mozSystem: true});
11509 *   };
11510 * });
11511 * ```
11512 *
11513 * @param {string} method HTTP method of the request (GET, POST, PUT, ..)
11514 * @param {string} url URL of the request.
11515 */
11516function $xhrFactoryProvider() {
11517  this.$get = function() {
11518    return function createXhr() {
11519      return new window.XMLHttpRequest();
11520    };
11521  };
11522}
11523
11524/**
11525 * @ngdoc service
11526 * @name $httpBackend
11527 * @requires $window
11528 * @requires $document
11529 * @requires $xhrFactory
11530 *
11531 * @description
11532 * HTTP backend used by the {@link ng.$http service} that delegates to
11533 * XMLHttpRequest object or JSONP and deals with browser incompatibilities.
11534 *
11535 * You should never need to use this service directly, instead use the higher-level abstractions:
11536 * {@link ng.$http $http} or {@link ngResource.$resource $resource}.
11537 *
11538 * During testing this implementation is swapped with {@link ngMock.$httpBackend mock
11539 * $httpBackend} which can be trained with responses.
11540 */
11541function $HttpBackendProvider() {
11542  this.$get = ['$browser', '$window', '$document', '$xhrFactory', function($browser, $window, $document, $xhrFactory) {
11543    return createHttpBackend($browser, $xhrFactory, $browser.defer, $window.angular.callbacks, $document[0]);
11544  }];
11545}
11546
11547function createHttpBackend($browser, createXhr, $browserDefer, callbacks, rawDocument) {
11548  // TODO(vojta): fix the signature
11549  return function(method, url, post, callback, headers, timeout, withCredentials, responseType) {
11550    $browser.$$incOutstandingRequestCount();
11551    url = url || $browser.url();
11552
11553    if (lowercase(method) == 'jsonp') {
11554      var callbackId = '_' + (callbacks.counter++).toString(36);
11555      callbacks[callbackId] = function(data) {
11556        callbacks[callbackId].data = data;
11557        callbacks[callbackId].called = true;
11558      };
11559
11560      var jsonpDone = jsonpReq(url.replace('JSON_CALLBACK', 'angular.callbacks.' + callbackId),
11561          callbackId, function(status, text) {
11562        completeRequest(callback, status, callbacks[callbackId].data, "", text);
11563        callbacks[callbackId] = noop;
11564      });
11565    } else {
11566
11567      var xhr = createXhr(method, url);
11568
11569      xhr.open(method, url, true);
11570      forEach(headers, function(value, key) {
11571        if (isDefined(value)) {
11572            xhr.setRequestHeader(key, value);
11573        }
11574      });
11575
11576      xhr.onload = function requestLoaded() {
11577        var statusText = xhr.statusText || '';
11578
11579        // responseText is the old-school way of retrieving response (supported by IE9)
11580        // response/responseType properties were introduced in XHR Level2 spec (supported by IE10)
11581        var response = ('response' in xhr) ? xhr.response : xhr.responseText;
11582
11583        // normalize IE9 bug (http://bugs.jquery.com/ticket/1450)
11584        var status = xhr.status === 1223 ? 204 : xhr.status;
11585
11586        // fix status code when it is 0 (0 status is undocumented).
11587        // Occurs when accessing file resources or on Android 4.1 stock browser
11588        // while retrieving files from application cache.
11589        if (status === 0) {
11590          status = response ? 200 : urlResolve(url).protocol == 'file' ? 404 : 0;
11591        }
11592
11593        completeRequest(callback,
11594            status,
11595            response,
11596            xhr.getAllResponseHeaders(),
11597            statusText);
11598      };
11599
11600      var requestError = function() {
11601        // The response is always empty
11602        // See https://xhr.spec.whatwg.org/#request-error-steps and https://fetch.spec.whatwg.org/#concept-network-error
11603        completeRequest(callback, -1, null, null, '');
11604      };
11605
11606      xhr.onerror = requestError;
11607      xhr.onabort = requestError;
11608
11609      if (withCredentials) {
11610        xhr.withCredentials = true;
11611      }
11612
11613      if (responseType) {
11614        try {
11615          xhr.responseType = responseType;
11616        } catch (e) {
11617          // WebKit added support for the json responseType value on 09/03/2013
11618          // https://bugs.webkit.org/show_bug.cgi?id=73648. Versions of Safari prior to 7 are
11619          // known to throw when setting the value "json" as the response type. Other older
11620          // browsers implementing the responseType
11621          //
11622          // The json response type can be ignored if not supported, because JSON payloads are
11623          // parsed on the client-side regardless.
11624          if (responseType !== 'json') {
11625            throw e;
11626          }
11627        }
11628      }
11629
11630      xhr.send(isUndefined(post) ? null : post);
11631    }
11632
11633    if (timeout > 0) {
11634      var timeoutId = $browserDefer(timeoutRequest, timeout);
11635    } else if (isPromiseLike(timeout)) {
11636      timeout.then(timeoutRequest);
11637    }
11638
11639
11640    function timeoutRequest() {
11641      jsonpDone && jsonpDone();
11642      xhr && xhr.abort();
11643    }
11644
11645    function completeRequest(callback, status, response, headersString, statusText) {
11646      // cancel timeout and subsequent timeout promise resolution
11647      if (isDefined(timeoutId)) {
11648        $browserDefer.cancel(timeoutId);
11649      }
11650      jsonpDone = xhr = null;
11651
11652      callback(status, response, headersString, statusText);
11653      $browser.$$completeOutstandingRequest(noop);
11654    }
11655  };
11656
11657  function jsonpReq(url, callbackId, done) {
11658    // we can't use jQuery/jqLite here because jQuery does crazy stuff with script elements, e.g.:
11659    // - fetches local scripts via XHR and evals them
11660    // - adds and immediately removes script elements from the document
11661    var script = rawDocument.createElement('script'), callback = null;
11662    script.type = "text/javascript";
11663    script.src = url;
11664    script.async = true;
11665
11666    callback = function(event) {
11667      removeEventListenerFn(script, "load", callback);
11668      removeEventListenerFn(script, "error", callback);
11669      rawDocument.body.removeChild(script);
11670      script = null;
11671      var status = -1;
11672      var text = "unknown";
11673
11674      if (event) {
11675        if (event.type === "load" && !callbacks[callbackId].called) {
11676          event = { type: "error" };
11677        }
11678        text = event.type;
11679        status = event.type === "error" ? 404 : 200;
11680      }
11681
11682      if (done) {
11683        done(status, text);
11684      }
11685    };
11686
11687    addEventListenerFn(script, "load", callback);
11688    addEventListenerFn(script, "error", callback);
11689    rawDocument.body.appendChild(script);
11690    return callback;
11691  }
11692}
11693
11694var $interpolateMinErr = angular.$interpolateMinErr = minErr('$interpolate');
11695$interpolateMinErr.throwNoconcat = function(text) {
11696  throw $interpolateMinErr('noconcat',
11697      "Error while interpolating: {0}\nStrict Contextual Escaping disallows " +
11698      "interpolations that concatenate multiple expressions when a trusted value is " +
11699      "required.  See http://docs.angularjs.org/api/ng.$sce", text);
11700};
11701
11702$interpolateMinErr.interr = function(text, err) {
11703  return $interpolateMinErr('interr', "Can't interpolate: {0}\n{1}", text, err.toString());
11704};
11705
11706/**
11707 * @ngdoc provider
11708 * @name $interpolateProvider
11709 *
11710 * @description
11711 *
11712 * Used for configuring the interpolation markup. Defaults to `{{` and `}}`.
11713 *
11714 * <div class="alert alert-danger">
11715 * This feature is sometimes used to mix different markup languages, e.g. to wrap an Angular
11716 * template within a Python Jinja template (or any other template language). Mixing templating
11717 * languages is **very dangerous**. The embedding template language will not safely escape Angular
11718 * expressions, so any user-controlled values in the template will cause Cross Site Scripting (XSS)
11719 * security bugs!
11720 * </div>
11721 *
11722 * @example
11723<example name="custom-interpolation-markup" module="customInterpolationApp">
11724<file name="index.html">
11725<script>
11726  var customInterpolationApp = angular.module('customInterpolationApp', []);
11727
11728  customInterpolationApp.config(function($interpolateProvider) {
11729    $interpolateProvider.startSymbol('//');
11730    $interpolateProvider.endSymbol('//');
11731  });
11732
11733
11734  customInterpolationApp.controller('DemoController', function() {
11735      this.label = "This binding is brought you by // interpolation symbols.";
11736  });
11737</script>
11738<div ng-controller="DemoController as demo">
11739    //demo.label//
11740</div>
11741</file>
11742<file name="protractor.js" type="protractor">
11743  it('should interpolate binding with custom symbols', function() {
11744    expect(element(by.binding('demo.label')).getText()).toBe('This binding is brought you by // interpolation symbols.');
11745  });
11746</file>
11747</example>
11748 */
11749function $InterpolateProvider() {
11750  var startSymbol = '{{';
11751  var endSymbol = '}}';
11752
11753  /**
11754   * @ngdoc method
11755   * @name $interpolateProvider#startSymbol
11756   * @description
11757   * Symbol to denote start of expression in the interpolated string. Defaults to `{{`.
11758   *
11759   * @param {string=} value new value to set the starting symbol to.
11760   * @returns {string|self} Returns the symbol when used as getter and self if used as setter.
11761   */
11762  this.startSymbol = function(value) {
11763    if (value) {
11764      startSymbol = value;
11765      return this;
11766    } else {
11767      return startSymbol;
11768    }
11769  };
11770
11771  /**
11772   * @ngdoc method
11773   * @name $interpolateProvider#endSymbol
11774   * @description
11775   * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.
11776   *
11777   * @param {string=} value new value to set the ending symbol to.
11778   * @returns {string|self} Returns the symbol when used as getter and self if used as setter.
11779   */
11780  this.endSymbol = function(value) {
11781    if (value) {
11782      endSymbol = value;
11783      return this;
11784    } else {
11785      return endSymbol;
11786    }
11787  };
11788
11789
11790  this.$get = ['$parse', '$exceptionHandler', '$sce', function($parse, $exceptionHandler, $sce) {
11791    var startSymbolLength = startSymbol.length,
11792        endSymbolLength = endSymbol.length,
11793        escapedStartRegexp = new RegExp(startSymbol.replace(/./g, escape), 'g'),
11794        escapedEndRegexp = new RegExp(endSymbol.replace(/./g, escape), 'g');
11795
11796    function escape(ch) {
11797      return '\\\\\\' + ch;
11798    }
11799
11800    function unescapeText(text) {
11801      return text.replace(escapedStartRegexp, startSymbol).
11802        replace(escapedEndRegexp, endSymbol);
11803    }
11804
11805    function stringify(value) {
11806      if (value == null) { // null || undefined
11807        return '';
11808      }
11809      switch (typeof value) {
11810        case 'string':
11811          break;
11812        case 'number':
11813          value = '' + value;
11814          break;
11815        default:
11816          value = toJson(value);
11817      }
11818
11819      return value;
11820    }
11821
11822    //TODO: this is the same as the constantWatchDelegate in parse.js
11823    function constantWatchDelegate(scope, listener, objectEquality, constantInterp) {
11824      var unwatch;
11825      return unwatch = scope.$watch(function constantInterpolateWatch(scope) {
11826        unwatch();
11827        return constantInterp(scope);
11828      }, listener, objectEquality);
11829    }
11830
11831    /**
11832     * @ngdoc service
11833     * @name $interpolate
11834     * @kind function
11835     *
11836     * @requires $parse
11837     * @requires $sce
11838     *
11839     * @description
11840     *
11841     * Compiles a string with markup into an interpolation function. This service is used by the
11842     * HTML {@link ng.$compile $compile} service for data binding. See
11843     * {@link ng.$interpolateProvider $interpolateProvider} for configuring the
11844     * interpolation markup.
11845     *
11846     *
11847     * ```js
11848     *   var $interpolate = ...; // injected
11849     *   var exp = $interpolate('Hello {{name | uppercase}}!');
11850     *   expect(exp({name:'Angular'})).toEqual('Hello ANGULAR!');
11851     * ```
11852     *
11853     * `$interpolate` takes an optional fourth argument, `allOrNothing`. If `allOrNothing` is
11854     * `true`, the interpolation function will return `undefined` unless all embedded expressions
11855     * evaluate to a value other than `undefined`.
11856     *
11857     * ```js
11858     *   var $interpolate = ...; // injected
11859     *   var context = {greeting: 'Hello', name: undefined };
11860     *
11861     *   // default "forgiving" mode
11862     *   var exp = $interpolate('{{greeting}} {{name}}!');
11863     *   expect(exp(context)).toEqual('Hello !');
11864     *
11865     *   // "allOrNothing" mode
11866     *   exp = $interpolate('{{greeting}} {{name}}!', false, null, true);
11867     *   expect(exp(context)).toBeUndefined();
11868     *   context.name = 'Angular';
11869     *   expect(exp(context)).toEqual('Hello Angular!');
11870     * ```
11871     *
11872     * `allOrNothing` is useful for interpolating URLs. `ngSrc` and `ngSrcset` use this behavior.
11873     *
11874     * ####Escaped Interpolation
11875     * $interpolate provides a mechanism for escaping interpolation markers. Start and end markers
11876     * can be escaped by preceding each of their characters with a REVERSE SOLIDUS U+005C (backslash).
11877     * It will be rendered as a regular start/end marker, and will not be interpreted as an expression
11878     * or binding.
11879     *
11880     * This enables web-servers to prevent script injection attacks and defacing attacks, to some
11881     * degree, while also enabling code examples to work without relying on the
11882     * {@link ng.directive:ngNonBindable ngNonBindable} directive.
11883     *
11884     * **For security purposes, it is strongly encouraged that web servers escape user-supplied data,
11885     * replacing angle brackets (&lt;, &gt;) with &amp;lt; and &amp;gt; respectively, and replacing all
11886     * interpolation start/end markers with their escaped counterparts.**
11887     *
11888     * Escaped interpolation markers are only replaced with the actual interpolation markers in rendered
11889     * output when the $interpolate service processes the text. So, for HTML elements interpolated
11890     * by {@link ng.$compile $compile}, or otherwise interpolated with the `mustHaveExpression` parameter
11891     * set to `true`, the interpolated text must contain an unescaped interpolation expression. As such,
11892     * this is typically useful only when user-data is used in rendering a template from the server, or
11893     * when otherwise untrusted data is used by a directive.
11894     *
11895     * <example>
11896     *  <file name="index.html">
11897     *    <div ng-init="username='A user'">
11898     *      <p ng-init="apptitle='Escaping demo'">{{apptitle}}: \{\{ username = "defaced value"; \}\}
11899     *        </p>
11900     *      <p><strong>{{username}}</strong> attempts to inject code which will deface the
11901     *        application, but fails to accomplish their task, because the server has correctly
11902     *        escaped the interpolation start/end markers with REVERSE SOLIDUS U+005C (backslash)
11903     *        characters.</p>
11904     *      <p>Instead, the result of the attempted script injection is visible, and can be removed
11905     *        from the database by an administrator.</p>
11906     *    </div>
11907     *  </file>
11908     * </example>
11909     *
11910     * @param {string} text The text with markup to interpolate.
11911     * @param {boolean=} mustHaveExpression if set to true then the interpolation string must have
11912     *    embedded expression in order to return an interpolation function. Strings with no
11913     *    embedded expression will return null for the interpolation function.
11914     * @param {string=} trustedContext when provided, the returned function passes the interpolated
11915     *    result through {@link ng.$sce#getTrusted $sce.getTrusted(interpolatedResult,
11916     *    trustedContext)} before returning it.  Refer to the {@link ng.$sce $sce} service that
11917     *    provides Strict Contextual Escaping for details.
11918     * @param {boolean=} allOrNothing if `true`, then the returned function returns undefined
11919     *    unless all embedded expressions evaluate to a value other than `undefined`.
11920     * @returns {function(context)} an interpolation function which is used to compute the
11921     *    interpolated string. The function has these parameters:
11922     *
11923     * - `context`: evaluation context for all expressions embedded in the interpolated text
11924     */
11925    function $interpolate(text, mustHaveExpression, trustedContext, allOrNothing) {
11926      // Provide a quick exit and simplified result function for text with no interpolation
11927      if (!text.length || text.indexOf(startSymbol) === -1) {
11928        var constantInterp;
11929        if (!mustHaveExpression) {
11930          var unescapedText = unescapeText(text);
11931          constantInterp = valueFn(unescapedText);
11932          constantInterp.exp = text;
11933          constantInterp.expressions = [];
11934          constantInterp.$$watchDelegate = constantWatchDelegate;
11935        }
11936        return constantInterp;
11937      }
11938
11939      allOrNothing = !!allOrNothing;
11940      var startIndex,
11941          endIndex,
11942          index = 0,
11943          expressions = [],
11944          parseFns = [],
11945          textLength = text.length,
11946          exp,
11947          concat = [],
11948          expressionPositions = [];
11949
11950      while (index < textLength) {
11951        if (((startIndex = text.indexOf(startSymbol, index)) != -1) &&
11952             ((endIndex = text.indexOf(endSymbol, startIndex + startSymbolLength)) != -1)) {
11953          if (index !== startIndex) {
11954            concat.push(unescapeText(text.substring(index, startIndex)));
11955          }
11956          exp = text.substring(startIndex + startSymbolLength, endIndex);
11957          expressions.push(exp);
11958          parseFns.push($parse(exp, parseStringifyInterceptor));
11959          index = endIndex + endSymbolLength;
11960          expressionPositions.push(concat.length);
11961          concat.push('');
11962        } else {
11963          // we did not find an interpolation, so we have to add the remainder to the separators array
11964          if (index !== textLength) {
11965            concat.push(unescapeText(text.substring(index)));
11966          }
11967          break;
11968        }
11969      }
11970
11971      // Concatenating expressions makes it hard to reason about whether some combination of
11972      // concatenated values are unsafe to use and could easily lead to XSS.  By requiring that a
11973      // single expression be used for iframe[src], object[src], etc., we ensure that the value
11974      // that's used is assigned or constructed by some JS code somewhere that is more testable or
11975      // make it obvious that you bound the value to some user controlled value.  This helps reduce
11976      // the load when auditing for XSS issues.
11977      if (trustedContext && concat.length > 1) {
11978          $interpolateMinErr.throwNoconcat(text);
11979      }
11980
11981      if (!mustHaveExpression || expressions.length) {
11982        var compute = function(values) {
11983          for (var i = 0, ii = expressions.length; i < ii; i++) {
11984            if (allOrNothing && isUndefined(values[i])) return;
11985            concat[expressionPositions[i]] = values[i];
11986          }
11987          return concat.join('');
11988        };
11989
11990        var getValue = function(value) {
11991          return trustedContext ?
11992            $sce.getTrusted(trustedContext, value) :
11993            $sce.valueOf(value);
11994        };
11995
11996        return extend(function interpolationFn(context) {
11997            var i = 0;
11998            var ii = expressions.length;
11999            var values = new Array(ii);
12000
12001            try {
12002              for (; i < ii; i++) {
12003                values[i] = parseFns[i](context);
12004              }
12005
12006              return compute(values);
12007            } catch (err) {
12008              $exceptionHandler($interpolateMinErr.interr(text, err));
12009            }
12010
12011          }, {
12012          // all of these properties are undocumented for now
12013          exp: text, //just for compatibility with regular watchers created via $watch
12014          expressions: expressions,
12015          $$watchDelegate: function(scope, listener) {
12016            var lastValue;
12017            return scope.$watchGroup(parseFns, function interpolateFnWatcher(values, oldValues) {
12018              var currValue = compute(values);
12019              if (isFunction(listener)) {
12020                listener.call(this, currValue, values !== oldValues ? lastValue : currValue, scope);
12021              }
12022              lastValue = currValue;
12023            });
12024          }
12025        });
12026      }
12027
12028      function parseStringifyInterceptor(value) {
12029        try {
12030          value = getValue(value);
12031          return allOrNothing && !isDefined(value) ? value : stringify(value);
12032        } catch (err) {
12033          $exceptionHandler($interpolateMinErr.interr(text, err));
12034        }
12035      }
12036    }
12037
12038
12039    /**
12040     * @ngdoc method
12041     * @name $interpolate#startSymbol
12042     * @description
12043     * Symbol to denote the start of expression in the interpolated string. Defaults to `{{`.
12044     *
12045     * Use {@link ng.$interpolateProvider#startSymbol `$interpolateProvider.startSymbol`} to change
12046     * the symbol.
12047     *
12048     * @returns {string} start symbol.
12049     */
12050    $interpolate.startSymbol = function() {
12051      return startSymbol;
12052    };
12053
12054
12055    /**
12056     * @ngdoc method
12057     * @name $interpolate#endSymbol
12058     * @description
12059     * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.
12060     *
12061     * Use {@link ng.$interpolateProvider#endSymbol `$interpolateProvider.endSymbol`} to change
12062     * the symbol.
12063     *
12064     * @returns {string} end symbol.
12065     */
12066    $interpolate.endSymbol = function() {
12067      return endSymbol;
12068    };
12069
12070    return $interpolate;
12071  }];
12072}
12073
12074function $IntervalProvider() {
12075  this.$get = ['$rootScope', '$window', '$q', '$$q', '$browser',
12076       function($rootScope,   $window,   $q,   $$q,   $browser) {
12077    var intervals = {};
12078
12079
12080     /**
12081      * @ngdoc service
12082      * @name $interval
12083      *
12084      * @description
12085      * Angular's wrapper for `window.setInterval`. The `fn` function is executed every `delay`
12086      * milliseconds.
12087      *
12088      * The return value of registering an interval function is a promise. This promise will be
12089      * notified upon each tick of the interval, and will be resolved after `count` iterations, or
12090      * run indefinitely if `count` is not defined. The value of the notification will be the
12091      * number of iterations that have run.
12092      * To cancel an interval, call `$interval.cancel(promise)`.
12093      *
12094      * In tests you can use {@link ngMock.$interval#flush `$interval.flush(millis)`} to
12095      * move forward by `millis` milliseconds and trigger any functions scheduled to run in that
12096      * time.
12097      *
12098      * <div class="alert alert-warning">
12099      * **Note**: Intervals created by this service must be explicitly destroyed when you are finished
12100      * with them.  In particular they are not automatically destroyed when a controller's scope or a
12101      * directive's element are destroyed.
12102      * You should take this into consideration and make sure to always cancel the interval at the
12103      * appropriate moment.  See the example below for more details on how and when to do this.
12104      * </div>
12105      *
12106      * @param {function()} fn A function that should be called repeatedly.
12107      * @param {number} delay Number of milliseconds between each function call.
12108      * @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat
12109      *   indefinitely.
12110      * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise
12111      *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.
12112      * @param {...*=} Pass additional parameters to the executed function.
12113      * @returns {promise} A promise which will be notified on each iteration.
12114      *
12115      * @example
12116      * <example module="intervalExample">
12117      * <file name="index.html">
12118      *   <script>
12119      *     angular.module('intervalExample', [])
12120      *       .controller('ExampleController', ['$scope', '$interval',
12121      *         function($scope, $interval) {
12122      *           $scope.format = 'M/d/yy h:mm:ss a';
12123      *           $scope.blood_1 = 100;
12124      *           $scope.blood_2 = 120;
12125      *
12126      *           var stop;
12127      *           $scope.fight = function() {
12128      *             // Don't start a new fight if we are already fighting
12129      *             if ( angular.isDefined(stop) ) return;
12130      *
12131      *             stop = $interval(function() {
12132      *               if ($scope.blood_1 > 0 && $scope.blood_2 > 0) {
12133      *                 $scope.blood_1 = $scope.blood_1 - 3;
12134      *                 $scope.blood_2 = $scope.blood_2 - 4;
12135      *               } else {
12136      *                 $scope.stopFight();
12137      *               }
12138      *             }, 100);
12139      *           };
12140      *
12141      *           $scope.stopFight = function() {
12142      *             if (angular.isDefined(stop)) {
12143      *               $interval.cancel(stop);
12144      *               stop = undefined;
12145      *             }
12146      *           };
12147      *
12148      *           $scope.resetFight = function() {
12149      *             $scope.blood_1 = 100;
12150      *             $scope.blood_2 = 120;
12151      *           };
12152      *
12153      *           $scope.$on('$destroy', function() {
12154      *             // Make sure that the interval is destroyed too
12155      *             $scope.stopFight();
12156      *           });
12157      *         }])
12158      *       // Register the 'myCurrentTime' directive factory method.
12159      *       // We inject $interval and dateFilter service since the factory method is DI.
12160      *       .directive('myCurrentTime', ['$interval', 'dateFilter',
12161      *         function($interval, dateFilter) {
12162      *           // return the directive link function. (compile function not needed)
12163      *           return function(scope, element, attrs) {
12164      *             var format,  // date format
12165      *                 stopTime; // so that we can cancel the time updates
12166      *
12167      *             // used to update the UI
12168      *             function updateTime() {
12169      *               element.text(dateFilter(new Date(), format));
12170      *             }
12171      *
12172      *             // watch the expression, and update the UI on change.
12173      *             scope.$watch(attrs.myCurrentTime, function(value) {
12174      *               format = value;
12175      *               updateTime();
12176      *             });
12177      *
12178      *             stopTime = $interval(updateTime, 1000);
12179      *
12180      *             // listen on DOM destroy (removal) event, and cancel the next UI update
12181      *             // to prevent updating time after the DOM element was removed.
12182      *             element.on('$destroy', function() {
12183      *               $interval.cancel(stopTime);
12184      *             });
12185      *           }
12186      *         }]);
12187      *   </script>
12188      *
12189      *   <div>
12190      *     <div ng-controller="ExampleController">
12191      *       <label>Date format: <input ng-model="format"></label> <hr/>
12192      *       Current time is: <span my-current-time="format"></span>
12193      *       <hr/>
12194      *       Blood 1 : <font color='red'>{{blood_1}}</font>
12195      *       Blood 2 : <font color='red'>{{blood_2}}</font>
12196      *       <button type="button" data-ng-click="fight()">Fight</button>
12197      *       <button type="button" data-ng-click="stopFight()">StopFight</button>
12198      *       <button type="button" data-ng-click="resetFight()">resetFight</button>
12199      *     </div>
12200      *   </div>
12201      *
12202      * </file>
12203      * </example>
12204      */
12205    function interval(fn, delay, count, invokeApply) {
12206      var hasParams = arguments.length > 4,
12207          args = hasParams ? sliceArgs(arguments, 4) : [],
12208          setInterval = $window.setInterval,
12209          clearInterval = $window.clearInterval,
12210          iteration = 0,
12211          skipApply = (isDefined(invokeApply) && !invokeApply),
12212          deferred = (skipApply ? $$q : $q).defer(),
12213          promise = deferred.promise;
12214
12215      count = isDefined(count) ? count : 0;
12216
12217      promise.$$intervalId = setInterval(function tick() {
12218        if (skipApply) {
12219          $browser.defer(callback);
12220        } else {
12221          $rootScope.$evalAsync(callback);
12222        }
12223        deferred.notify(iteration++);
12224
12225        if (count > 0 && iteration >= count) {
12226          deferred.resolve(iteration);
12227          clearInterval(promise.$$intervalId);
12228          delete intervals[promise.$$intervalId];
12229        }
12230
12231        if (!skipApply) $rootScope.$apply();
12232
12233      }, delay);
12234
12235      intervals[promise.$$intervalId] = deferred;
12236
12237      return promise;
12238
12239      function callback() {
12240        if (!hasParams) {
12241          fn(iteration);
12242        } else {
12243          fn.apply(null, args);
12244        }
12245      }
12246    }
12247
12248
12249     /**
12250      * @ngdoc method
12251      * @name $interval#cancel
12252      *
12253      * @description
12254      * Cancels a task associated with the `promise`.
12255      *
12256      * @param {Promise=} promise returned by the `$interval` function.
12257      * @returns {boolean} Returns `true` if the task was successfully canceled.
12258      */
12259    interval.cancel = function(promise) {
12260      if (promise && promise.$$intervalId in intervals) {
12261        intervals[promise.$$intervalId].reject('canceled');
12262        $window.clearInterval(promise.$$intervalId);
12263        delete intervals[promise.$$intervalId];
12264        return true;
12265      }
12266      return false;
12267    };
12268
12269    return interval;
12270  }];
12271}
12272
12273/**
12274 * @ngdoc service
12275 * @name $locale
12276 *
12277 * @description
12278 * $locale service provides localization rules for various Angular components. As of right now the
12279 * only public api is:
12280 *
12281 * * `id` – `{string}` – locale id formatted as `languageId-countryId` (e.g. `en-us`)
12282 */
12283
12284var PATH_MATCH = /^([^\?#]*)(\?([^#]*))?(#(.*))?$/,
12285    DEFAULT_PORTS = {'http': 80, 'https': 443, 'ftp': 21};
12286var $locationMinErr = minErr('$location');
12287
12288
12289/**
12290 * Encode path using encodeUriSegment, ignoring forward slashes
12291 *
12292 * @param {string} path Path to encode
12293 * @returns {string}
12294 */
12295function encodePath(path) {
12296  var segments = path.split('/'),
12297      i = segments.length;
12298
12299  while (i--) {
12300    segments[i] = encodeUriSegment(segments[i]);
12301  }
12302
12303  return segments.join('/');
12304}
12305
12306function parseAbsoluteUrl(absoluteUrl, locationObj) {
12307  var parsedUrl = urlResolve(absoluteUrl);
12308
12309  locationObj.$$protocol = parsedUrl.protocol;
12310  locationObj.$$host = parsedUrl.hostname;
12311  locationObj.$$port = toInt(parsedUrl.port) || DEFAULT_PORTS[parsedUrl.protocol] || null;
12312}
12313
12314
12315function parseAppUrl(relativeUrl, locationObj) {
12316  var prefixed = (relativeUrl.charAt(0) !== '/');
12317  if (prefixed) {
12318    relativeUrl = '/' + relativeUrl;
12319  }
12320  var match = urlResolve(relativeUrl);
12321  locationObj.$$path = decodeURIComponent(prefixed && match.pathname.charAt(0) === '/' ?
12322      match.pathname.substring(1) : match.pathname);
12323  locationObj.$$search = parseKeyValue(match.search);
12324  locationObj.$$hash = decodeURIComponent(match.hash);
12325
12326  // make sure path starts with '/';
12327  if (locationObj.$$path && locationObj.$$path.charAt(0) != '/') {
12328    locationObj.$$path = '/' + locationObj.$$path;
12329  }
12330}
12331
12332
12333/**
12334 *
12335 * @param {string} begin
12336 * @param {string} whole
12337 * @returns {string} returns text from whole after begin or undefined if it does not begin with
12338 *                   expected string.
12339 */
12340function beginsWith(begin, whole) {
12341  if (whole.indexOf(begin) === 0) {
12342    return whole.substr(begin.length);
12343  }
12344}
12345
12346
12347function stripHash(url) {
12348  var index = url.indexOf('#');
12349  return index == -1 ? url : url.substr(0, index);
12350}
12351
12352function trimEmptyHash(url) {
12353  return url.replace(/(#.+)|#$/, '$1');
12354}
12355
12356
12357function stripFile(url) {
12358  return url.substr(0, stripHash(url).lastIndexOf('/') + 1);
12359}
12360
12361/* return the server only (scheme://host:port) */
12362function serverBase(url) {
12363  return url.substring(0, url.indexOf('/', url.indexOf('//') + 2));
12364}
12365
12366
12367/**
12368 * LocationHtml5Url represents an url
12369 * This object is exposed as $location service when HTML5 mode is enabled and supported
12370 *
12371 * @constructor
12372 * @param {string} appBase application base URL
12373 * @param {string} appBaseNoFile application base URL stripped of any filename
12374 * @param {string} basePrefix url path prefix
12375 */
12376function LocationHtml5Url(appBase, appBaseNoFile, basePrefix) {
12377  this.$$html5 = true;
12378  basePrefix = basePrefix || '';
12379  parseAbsoluteUrl(appBase, this);
12380
12381
12382  /**
12383   * Parse given html5 (regular) url string into properties
12384   * @param {string} url HTML5 url
12385   * @private
12386   */
12387  this.$$parse = function(url) {
12388    var pathUrl = beginsWith(appBaseNoFile, url);
12389    if (!isString(pathUrl)) {
12390      throw $locationMinErr('ipthprfx', 'Invalid url "{0}", missing path prefix "{1}".', url,
12391          appBaseNoFile);
12392    }
12393
12394    parseAppUrl(pathUrl, this);
12395
12396    if (!this.$$path) {
12397      this.$$path = '/';
12398    }
12399
12400    this.$$compose();
12401  };
12402
12403  /**
12404   * Compose url and update `absUrl` property
12405   * @private
12406   */
12407  this.$$compose = function() {
12408    var search = toKeyValue(this.$$search),
12409        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';
12410
12411    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;
12412    this.$$absUrl = appBaseNoFile + this.$$url.substr(1); // first char is always '/'
12413  };
12414
12415  this.$$parseLinkUrl = function(url, relHref) {
12416    if (relHref && relHref[0] === '#') {
12417      // special case for links to hash fragments:
12418      // keep the old url and only replace the hash fragment
12419      this.hash(relHref.slice(1));
12420      return true;
12421    }
12422    var appUrl, prevAppUrl;
12423    var rewrittenUrl;
12424
12425    if (isDefined(appUrl = beginsWith(appBase, url))) {
12426      prevAppUrl = appUrl;
12427      if (isDefined(appUrl = beginsWith(basePrefix, appUrl))) {
12428        rewrittenUrl = appBaseNoFile + (beginsWith('/', appUrl) || appUrl);
12429      } else {
12430        rewrittenUrl = appBase + prevAppUrl;
12431      }
12432    } else if (isDefined(appUrl = beginsWith(appBaseNoFile, url))) {
12433      rewrittenUrl = appBaseNoFile + appUrl;
12434    } else if (appBaseNoFile == url + '/') {
12435      rewrittenUrl = appBaseNoFile;
12436    }
12437    if (rewrittenUrl) {
12438      this.$$parse(rewrittenUrl);
12439    }
12440    return !!rewrittenUrl;
12441  };
12442}
12443
12444
12445/**
12446 * LocationHashbangUrl represents url
12447 * This object is exposed as $location service when developer doesn't opt into html5 mode.
12448 * It also serves as the base class for html5 mode fallback on legacy browsers.
12449 *
12450 * @constructor
12451 * @param {string} appBase application base URL
12452 * @param {string} appBaseNoFile application base URL stripped of any filename
12453 * @param {string} hashPrefix hashbang prefix
12454 */
12455function LocationHashbangUrl(appBase, appBaseNoFile, hashPrefix) {
12456
12457  parseAbsoluteUrl(appBase, this);
12458
12459
12460  /**
12461   * Parse given hashbang url into properties
12462   * @param {string} url Hashbang url
12463   * @private
12464   */
12465  this.$$parse = function(url) {
12466    var withoutBaseUrl = beginsWith(appBase, url) || beginsWith(appBaseNoFile, url);
12467    var withoutHashUrl;
12468
12469    if (!isUndefined(withoutBaseUrl) && withoutBaseUrl.charAt(0) === '#') {
12470
12471      // The rest of the url starts with a hash so we have
12472      // got either a hashbang path or a plain hash fragment
12473      withoutHashUrl = beginsWith(hashPrefix, withoutBaseUrl);
12474      if (isUndefined(withoutHashUrl)) {
12475        // There was no hashbang prefix so we just have a hash fragment
12476        withoutHashUrl = withoutBaseUrl;
12477      }
12478
12479    } else {
12480      // There was no hashbang path nor hash fragment:
12481      // If we are in HTML5 mode we use what is left as the path;
12482      // Otherwise we ignore what is left
12483      if (this.$$html5) {
12484        withoutHashUrl = withoutBaseUrl;
12485      } else {
12486        withoutHashUrl = '';
12487        if (isUndefined(withoutBaseUrl)) {
12488          appBase = url;
12489          this.replace();
12490        }
12491      }
12492    }
12493
12494    parseAppUrl(withoutHashUrl, this);
12495
12496    this.$$path = removeWindowsDriveName(this.$$path, withoutHashUrl, appBase);
12497
12498    this.$$compose();
12499
12500    /*
12501     * In Windows, on an anchor node on documents loaded from
12502     * the filesystem, the browser will return a pathname
12503     * prefixed with the drive name ('/C:/path') when a
12504     * pathname without a drive is set:
12505     *  * a.setAttribute('href', '/foo')
12506     *   * a.pathname === '/C:/foo' //true
12507     *
12508     * Inside of Angular, we're always using pathnames that
12509     * do not include drive names for routing.
12510     */
12511    function removeWindowsDriveName(path, url, base) {
12512      /*
12513      Matches paths for file protocol on windows,
12514      such as /C:/foo/bar, and captures only /foo/bar.
12515      */
12516      var windowsFilePathExp = /^\/[A-Z]:(\/.*)/;
12517
12518      var firstPathSegmentMatch;
12519
12520      //Get the relative path from the input URL.
12521      if (url.indexOf(base) === 0) {
12522        url = url.replace(base, '');
12523      }
12524
12525      // The input URL intentionally contains a first path segment that ends with a colon.
12526      if (windowsFilePathExp.exec(url)) {
12527        return path;
12528      }
12529
12530      firstPathSegmentMatch = windowsFilePathExp.exec(path);
12531      return firstPathSegmentMatch ? firstPathSegmentMatch[1] : path;
12532    }
12533  };
12534
12535  /**
12536   * Compose hashbang url and update `absUrl` property
12537   * @private
12538   */
12539  this.$$compose = function() {
12540    var search = toKeyValue(this.$$search),
12541        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';
12542
12543    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;
12544    this.$$absUrl = appBase + (this.$$url ? hashPrefix + this.$$url : '');
12545  };
12546
12547  this.$$parseLinkUrl = function(url, relHref) {
12548    if (stripHash(appBase) == stripHash(url)) {
12549      this.$$parse(url);
12550      return true;
12551    }
12552    return false;
12553  };
12554}
12555
12556
12557/**
12558 * LocationHashbangUrl represents url
12559 * This object is exposed as $location service when html5 history api is enabled but the browser
12560 * does not support it.
12561 *
12562 * @constructor
12563 * @param {string} appBase application base URL
12564 * @param {string} appBaseNoFile application base URL stripped of any filename
12565 * @param {string} hashPrefix hashbang prefix
12566 */
12567function LocationHashbangInHtml5Url(appBase, appBaseNoFile, hashPrefix) {
12568  this.$$html5 = true;
12569  LocationHashbangUrl.apply(this, arguments);
12570
12571  this.$$parseLinkUrl = function(url, relHref) {
12572    if (relHref && relHref[0] === '#') {
12573      // special case for links to hash fragments:
12574      // keep the old url and only replace the hash fragment
12575      this.hash(relHref.slice(1));
12576      return true;
12577    }
12578
12579    var rewrittenUrl;
12580    var appUrl;
12581
12582    if (appBase == stripHash(url)) {
12583      rewrittenUrl = url;
12584    } else if ((appUrl = beginsWith(appBaseNoFile, url))) {
12585      rewrittenUrl = appBase + hashPrefix + appUrl;
12586    } else if (appBaseNoFile === url + '/') {
12587      rewrittenUrl = appBaseNoFile;
12588    }
12589    if (rewrittenUrl) {
12590      this.$$parse(rewrittenUrl);
12591    }
12592    return !!rewrittenUrl;
12593  };
12594
12595  this.$$compose = function() {
12596    var search = toKeyValue(this.$$search),
12597        hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : '';
12598
12599    this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash;
12600    // include hashPrefix in $$absUrl when $$url is empty so IE9 does not reload page because of removal of '#'
12601    this.$$absUrl = appBase + hashPrefix + this.$$url;
12602  };
12603
12604}
12605
12606
12607var locationPrototype = {
12608
12609  /**
12610   * Are we in html5 mode?
12611   * @private
12612   */
12613  $$html5: false,
12614
12615  /**
12616   * Has any change been replacing?
12617   * @private
12618   */
12619  $$replace: false,
12620
12621  /**
12622   * @ngdoc method
12623   * @name $location#absUrl
12624   *
12625   * @description
12626   * This method is getter only.
12627   *
12628   * Return full url representation with all segments encoded according to rules specified in
12629   * [RFC 3986](http://www.ietf.org/rfc/rfc3986.txt).
12630   *
12631   *
12632   * ```js
12633   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo
12634   * var absUrl = $location.absUrl();
12635   * // => "http://example.com/#/some/path?foo=bar&baz=xoxo"
12636   * ```
12637   *
12638   * @return {string} full url
12639   */
12640  absUrl: locationGetter('$$absUrl'),
12641
12642  /**
12643   * @ngdoc method
12644   * @name $location#url
12645   *
12646   * @description
12647   * This method is getter / setter.
12648   *
12649   * Return url (e.g. `/path?a=b#hash`) when called without any parameter.
12650   *
12651   * Change path, search and hash, when called with parameter and return `$location`.
12652   *
12653   *
12654   * ```js
12655   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo
12656   * var url = $location.url();
12657   * // => "/some/path?foo=bar&baz=xoxo"
12658   * ```
12659   *
12660   * @param {string=} url New url without base prefix (e.g. `/path?a=b#hash`)
12661   * @return {string} url
12662   */
12663  url: function(url) {
12664    if (isUndefined(url)) {
12665      return this.$$url;
12666    }
12667
12668    var match = PATH_MATCH.exec(url);
12669    if (match[1] || url === '') this.path(decodeURIComponent(match[1]));
12670    if (match[2] || match[1] || url === '') this.search(match[3] || '');
12671    this.hash(match[5] || '');
12672
12673    return this;
12674  },
12675
12676  /**
12677   * @ngdoc method
12678   * @name $location#protocol
12679   *
12680   * @description
12681   * This method is getter only.
12682   *
12683   * Return protocol of current url.
12684   *
12685   *
12686   * ```js
12687   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo
12688   * var protocol = $location.protocol();
12689   * // => "http"
12690   * ```
12691   *
12692   * @return {string} protocol of current url
12693   */
12694  protocol: locationGetter('$$protocol'),
12695
12696  /**
12697   * @ngdoc method
12698   * @name $location#host
12699   *
12700   * @description
12701   * This method is getter only.
12702   *
12703   * Return host of current url.
12704   *
12705   * Note: compared to the non-angular version `location.host` which returns `hostname:port`, this returns the `hostname` portion only.
12706   *
12707   *
12708   * ```js
12709   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo
12710   * var host = $location.host();
12711   * // => "example.com"
12712   *
12713   * // given url http://user:password@example.com:8080/#/some/path?foo=bar&baz=xoxo
12714   * host = $location.host();
12715   * // => "example.com"
12716   * host = location.host;
12717   * // => "example.com:8080"
12718   * ```
12719   *
12720   * @return {string} host of current url.
12721   */
12722  host: locationGetter('$$host'),
12723
12724  /**
12725   * @ngdoc method
12726   * @name $location#port
12727   *
12728   * @description
12729   * This method is getter only.
12730   *
12731   * Return port of current url.
12732   *
12733   *
12734   * ```js
12735   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo
12736   * var port = $location.port();
12737   * // => 80
12738   * ```
12739   *
12740   * @return {Number} port
12741   */
12742  port: locationGetter('$$port'),
12743
12744  /**
12745   * @ngdoc method
12746   * @name $location#path
12747   *
12748   * @description
12749   * This method is getter / setter.
12750   *
12751   * Return path of current url when called without any parameter.
12752   *
12753   * Change path when called with parameter and return `$location`.
12754   *
12755   * Note: Path should always begin with forward slash (/), this method will add the forward slash
12756   * if it is missing.
12757   *
12758   *
12759   * ```js
12760   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo
12761   * var path = $location.path();
12762   * // => "/some/path"
12763   * ```
12764   *
12765   * @param {(string|number)=} path New path
12766   * @return {string} path
12767   */
12768  path: locationGetterSetter('$$path', function(path) {
12769    path = path !== null ? path.toString() : '';
12770    return path.charAt(0) == '/' ? path : '/' + path;
12771  }),
12772
12773  /**
12774   * @ngdoc method
12775   * @name $location#search
12776   *
12777   * @description
12778   * This method is getter / setter.
12779   *
12780   * Return search part (as object) of current url when called without any parameter.
12781   *
12782   * Change search part when called with parameter and return `$location`.
12783   *
12784   *
12785   * ```js
12786   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo
12787   * var searchObject = $location.search();
12788   * // => {foo: 'bar', baz: 'xoxo'}
12789   *
12790   * // set foo to 'yipee'
12791   * $location.search('foo', 'yipee');
12792   * // $location.search() => {foo: 'yipee', baz: 'xoxo'}
12793   * ```
12794   *
12795   * @param {string|Object.<string>|Object.<Array.<string>>} search New search params - string or
12796   * hash object.
12797   *
12798   * When called with a single argument the method acts as a setter, setting the `search` component
12799   * of `$location` to the specified value.
12800   *
12801   * If the argument is a hash object containing an array of values, these values will be encoded
12802   * as duplicate search parameters in the url.
12803   *
12804   * @param {(string|Number|Array<string>|boolean)=} paramValue If `search` is a string or number, then `paramValue`
12805   * will override only a single search property.
12806   *
12807   * If `paramValue` is an array, it will override the property of the `search` component of
12808   * `$location` specified via the first argument.
12809   *
12810   * If `paramValue` is `null`, the property specified via the first argument will be deleted.
12811   *
12812   * If `paramValue` is `true`, the property specified via the first argument will be added with no
12813   * value nor trailing equal sign.
12814   *
12815   * @return {Object} If called with no arguments returns the parsed `search` object. If called with
12816   * one or more arguments returns `$location` object itself.
12817   */
12818  search: function(search, paramValue) {
12819    switch (arguments.length) {
12820      case 0:
12821        return this.$$search;
12822      case 1:
12823        if (isString(search) || isNumber(search)) {
12824          search = search.toString();
12825          this.$$search = parseKeyValue(search);
12826        } else if (isObject(search)) {
12827          search = copy(search, {});
12828          // remove object undefined or null properties
12829          forEach(search, function(value, key) {
12830            if (value == null) delete search[key];
12831          });
12832
12833          this.$$search = search;
12834        } else {
12835          throw $locationMinErr('isrcharg',
12836              'The first argument of the `$location#search()` call must be a string or an object.');
12837        }
12838        break;
12839      default:
12840        if (isUndefined(paramValue) || paramValue === null) {
12841          delete this.$$search[search];
12842        } else {
12843          this.$$search[search] = paramValue;
12844        }
12845    }
12846
12847    this.$$compose();
12848    return this;
12849  },
12850
12851  /**
12852   * @ngdoc method
12853   * @name $location#hash
12854   *
12855   * @description
12856   * This method is getter / setter.
12857   *
12858   * Returns the hash fragment when called without any parameters.
12859   *
12860   * Changes the hash fragment when called with a parameter and returns `$location`.
12861   *
12862   *
12863   * ```js
12864   * // given url http://example.com/#/some/path?foo=bar&baz=xoxo#hashValue
12865   * var hash = $location.hash();
12866   * // => "hashValue"
12867   * ```
12868   *
12869   * @param {(string|number)=} hash New hash fragment
12870   * @return {string} hash
12871   */
12872  hash: locationGetterSetter('$$hash', function(hash) {
12873    return hash !== null ? hash.toString() : '';
12874  }),
12875
12876  /**
12877   * @ngdoc method
12878   * @name $location#replace
12879   *
12880   * @description
12881   * If called, all changes to $location during the current `$digest` will replace the current history
12882   * record, instead of adding a new one.
12883   */
12884  replace: function() {
12885    this.$$replace = true;
12886    return this;
12887  }
12888};
12889
12890forEach([LocationHashbangInHtml5Url, LocationHashbangUrl, LocationHtml5Url], function(Location) {
12891  Location.prototype = Object.create(locationPrototype);
12892
12893  /**
12894   * @ngdoc method
12895   * @name $location#state
12896   *
12897   * @description
12898   * This method is getter / setter.
12899   *
12900   * Return the history state object when called without any parameter.
12901   *
12902   * Change the history state object when called with one parameter and return `$location`.
12903   * The state object is later passed to `pushState` or `replaceState`.
12904   *
12905   * NOTE: This method is supported only in HTML5 mode and only in browsers supporting
12906   * the HTML5 History API (i.e. methods `pushState` and `replaceState`). If you need to support
12907   * older browsers (like IE9 or Android < 4.0), don't use this method.
12908   *
12909   * @param {object=} state State object for pushState or replaceState
12910   * @return {object} state
12911   */
12912  Location.prototype.state = function(state) {
12913    if (!arguments.length) {
12914      return this.$$state;
12915    }
12916
12917    if (Location !== LocationHtml5Url || !this.$$html5) {
12918      throw $locationMinErr('nostate', 'History API state support is available only ' +
12919        'in HTML5 mode and only in browsers supporting HTML5 History API');
12920    }
12921    // The user might modify `stateObject` after invoking `$location.state(stateObject)`
12922    // but we're changing the $$state reference to $browser.state() during the $digest
12923    // so the modification window is narrow.
12924    this.$$state = isUndefined(state) ? null : state;
12925
12926    return this;
12927  };
12928});
12929
12930
12931function locationGetter(property) {
12932  return function() {
12933    return this[property];
12934  };
12935}
12936
12937
12938function locationGetterSetter(property, preprocess) {
12939  return function(value) {
12940    if (isUndefined(value)) {
12941      return this[property];
12942    }
12943
12944    this[property] = preprocess(value);
12945    this.$$compose();
12946
12947    return this;
12948  };
12949}
12950
12951
12952/**
12953 * @ngdoc service
12954 * @name $location
12955 *
12956 * @requires $rootElement
12957 *
12958 * @description
12959 * The $location service parses the URL in the browser address bar (based on the
12960 * [window.location](https://developer.mozilla.org/en/window.location)) and makes the URL
12961 * available to your application. Changes to the URL in the address bar are reflected into
12962 * $location service and changes to $location are reflected into the browser address bar.
12963 *
12964 * **The $location service:**
12965 *
12966 * - Exposes the current URL in the browser address bar, so you can
12967 *   - Watch and observe the URL.
12968 *   - Change the URL.
12969 * - Synchronizes the URL with the browser when the user
12970 *   - Changes the address bar.
12971 *   - Clicks the back or forward button (or clicks a History link).
12972 *   - Clicks on a link.
12973 * - Represents the URL object as a set of methods (protocol, host, port, path, search, hash).
12974 *
12975 * For more information see {@link guide/$location Developer Guide: Using $location}
12976 */
12977
12978/**
12979 * @ngdoc provider
12980 * @name $locationProvider
12981 * @description
12982 * Use the `$locationProvider` to configure how the application deep linking paths are stored.
12983 */
12984function $LocationProvider() {
12985  var hashPrefix = '',
12986      html5Mode = {
12987        enabled: false,
12988        requireBase: true,
12989        rewriteLinks: true
12990      };
12991
12992  /**
12993   * @ngdoc method
12994   * @name $locationProvider#hashPrefix
12995   * @description
12996   * @param {string=} prefix Prefix for hash part (containing path and search)
12997   * @returns {*} current value if used as getter or itself (chaining) if used as setter
12998   */
12999  this.hashPrefix = function(prefix) {
13000    if (isDefined(prefix)) {
13001      hashPrefix = prefix;
13002      return this;
13003    } else {
13004      return hashPrefix;
13005    }
13006  };
13007
13008  /**
13009   * @ngdoc method
13010   * @name $locationProvider#html5Mode
13011   * @description
13012   * @param {(boolean|Object)=} mode If boolean, sets `html5Mode.enabled` to value.
13013   *   If object, sets `enabled`, `requireBase` and `rewriteLinks` to respective values. Supported
13014   *   properties:
13015   *   - **enabled** – `{boolean}` – (default: false) If true, will rely on `history.pushState` to
13016   *     change urls where supported. Will fall back to hash-prefixed paths in browsers that do not
13017   *     support `pushState`.
13018   *   - **requireBase** - `{boolean}` - (default: `true`) When html5Mode is enabled, specifies
13019   *     whether or not a <base> tag is required to be present. If `enabled` and `requireBase` are
13020   *     true, and a base tag is not present, an error will be thrown when `$location` is injected.
13021   *     See the {@link guide/$location $location guide for more information}
13022   *   - **rewriteLinks** - `{boolean}` - (default: `true`) When html5Mode is enabled,
13023   *     enables/disables url rewriting for relative links.
13024   *
13025   * @returns {Object} html5Mode object if used as getter or itself (chaining) if used as setter
13026   */
13027  this.html5Mode = function(mode) {
13028    if (isBoolean(mode)) {
13029      html5Mode.enabled = mode;
13030      return this;
13031    } else if (isObject(mode)) {
13032
13033      if (isBoolean(mode.enabled)) {
13034        html5Mode.enabled = mode.enabled;
13035      }
13036
13037      if (isBoolean(mode.requireBase)) {
13038        html5Mode.requireBase = mode.requireBase;
13039      }
13040
13041      if (isBoolean(mode.rewriteLinks)) {
13042        html5Mode.rewriteLinks = mode.rewriteLinks;
13043      }
13044
13045      return this;
13046    } else {
13047      return html5Mode;
13048    }
13049  };
13050
13051  /**
13052   * @ngdoc event
13053   * @name $location#$locationChangeStart
13054   * @eventType broadcast on root scope
13055   * @description
13056   * Broadcasted before a URL will change.
13057   *
13058   * This change can be prevented by calling
13059   * `preventDefault` method of the event. See {@link ng.$rootScope.Scope#$on} for more
13060   * details about event object. Upon successful change
13061   * {@link ng.$location#$locationChangeSuccess $locationChangeSuccess} is fired.
13062   *
13063   * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when
13064   * the browser supports the HTML5 History API.
13065   *
13066   * @param {Object} angularEvent Synthetic event object.
13067   * @param {string} newUrl New URL
13068   * @param {string=} oldUrl URL that was before it was changed.
13069   * @param {string=} newState New history state object
13070   * @param {string=} oldState History state object that was before it was changed.
13071   */
13072
13073  /**
13074   * @ngdoc event
13075   * @name $location#$locationChangeSuccess
13076   * @eventType broadcast on root scope
13077   * @description
13078   * Broadcasted after a URL was changed.
13079   *
13080   * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when
13081   * the browser supports the HTML5 History API.
13082   *
13083   * @param {Object} angularEvent Synthetic event object.
13084   * @param {string} newUrl New URL
13085   * @param {string=} oldUrl URL that was before it was changed.
13086   * @param {string=} newState New history state object
13087   * @param {string=} oldState History state object that was before it was changed.
13088   */
13089
13090  this.$get = ['$rootScope', '$browser', '$sniffer', '$rootElement', '$window',
13091      function($rootScope, $browser, $sniffer, $rootElement, $window) {
13092    var $location,
13093        LocationMode,
13094        baseHref = $browser.baseHref(), // if base[href] is undefined, it defaults to ''
13095        initialUrl = $browser.url(),
13096        appBase;
13097
13098    if (html5Mode.enabled) {
13099      if (!baseHref && html5Mode.requireBase) {
13100        throw $locationMinErr('nobase',
13101          "$location in HTML5 mode requires a <base> tag to be present!");
13102      }
13103      appBase = serverBase(initialUrl) + (baseHref || '/');
13104      LocationMode = $sniffer.history ? LocationHtml5Url : LocationHashbangInHtml5Url;
13105    } else {
13106      appBase = stripHash(initialUrl);
13107      LocationMode = LocationHashbangUrl;
13108    }
13109    var appBaseNoFile = stripFile(appBase);
13110
13111    $location = new LocationMode(appBase, appBaseNoFile, '#' + hashPrefix);
13112    $location.$$parseLinkUrl(initialUrl, initialUrl);
13113
13114    $location.$$state = $browser.state();
13115
13116    var IGNORE_URI_REGEXP = /^\s*(javascript|mailto):/i;
13117
13118    function setBrowserUrlWithFallback(url, replace, state) {
13119      var oldUrl = $location.url();
13120      var oldState = $location.$$state;
13121      try {
13122        $browser.url(url, replace, state);
13123
13124        // Make sure $location.state() returns referentially identical (not just deeply equal)
13125        // state object; this makes possible quick checking if the state changed in the digest
13126        // loop. Checking deep equality would be too expensive.
13127        $location.$$state = $browser.state();
13128      } catch (e) {
13129        // Restore old values if pushState fails
13130        $location.url(oldUrl);
13131        $location.$$state = oldState;
13132
13133        throw e;
13134      }
13135    }
13136
13137    $rootElement.on('click', function(event) {
13138      // TODO(vojta): rewrite link when opening in new tab/window (in legacy browser)
13139      // currently we open nice url link and redirect then
13140
13141      if (!html5Mode.rewriteLinks || event.ctrlKey || event.metaKey || event.shiftKey || event.which == 2 || event.button == 2) return;
13142
13143      var elm = jqLite(event.target);
13144
13145      // traverse the DOM up to find first A tag
13146      while (nodeName_(elm[0]) !== 'a') {
13147        // ignore rewriting if no A tag (reached root element, or no parent - removed from document)
13148        if (elm[0] === $rootElement[0] || !(elm = elm.parent())[0]) return;
13149      }
13150
13151      var absHref = elm.prop('href');
13152      // get the actual href attribute - see
13153      // http://msdn.microsoft.com/en-us/library/ie/dd347148(v=vs.85).aspx
13154      var relHref = elm.attr('href') || elm.attr('xlink:href');
13155
13156      if (isObject(absHref) && absHref.toString() === '[object SVGAnimatedString]') {
13157        // SVGAnimatedString.animVal should be identical to SVGAnimatedString.baseVal, unless during
13158        // an animation.
13159        absHref = urlResolve(absHref.animVal).href;
13160      }
13161
13162      // Ignore when url is started with javascript: or mailto:
13163      if (IGNORE_URI_REGEXP.test(absHref)) return;
13164
13165      if (absHref && !elm.attr('target') && !event.isDefaultPrevented()) {
13166        if ($location.$$parseLinkUrl(absHref, relHref)) {
13167          // We do a preventDefault for all urls that are part of the angular application,
13168          // in html5mode and also without, so that we are able to abort navigation without
13169          // getting double entries in the location history.
13170          event.preventDefault();
13171          // update location manually
13172          if ($location.absUrl() != $browser.url()) {
13173            $rootScope.$apply();
13174            // hack to work around FF6 bug 684208 when scenario runner clicks on links
13175            $window.angular['ff-684208-preventDefault'] = true;
13176          }
13177        }
13178      }
13179    });
13180
13181
13182    // rewrite hashbang url <> html5 url
13183    if (trimEmptyHash($location.absUrl()) != trimEmptyHash(initialUrl)) {
13184      $browser.url($location.absUrl(), true);
13185    }
13186
13187    var initializing = true;
13188
13189    // update $location when $browser url changes
13190    $browser.onUrlChange(function(newUrl, newState) {
13191
13192      if (isUndefined(beginsWith(appBaseNoFile, newUrl))) {
13193        // If we are navigating outside of the app then force a reload
13194        $window.location.href = newUrl;
13195        return;
13196      }
13197
13198      $rootScope.$evalAsync(function() {
13199        var oldUrl = $location.absUrl();
13200        var oldState = $location.$$state;
13201        var defaultPrevented;
13202        newUrl = trimEmptyHash(newUrl);
13203        $location.$$parse(newUrl);
13204        $location.$$state = newState;
13205
13206        defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl,
13207            newState, oldState).defaultPrevented;
13208
13209        // if the location was changed by a `$locationChangeStart` handler then stop
13210        // processing this location change
13211        if ($location.absUrl() !== newUrl) return;
13212
13213        if (defaultPrevented) {
13214          $location.$$parse(oldUrl);
13215          $location.$$state = oldState;
13216          setBrowserUrlWithFallback(oldUrl, false, oldState);
13217        } else {
13218          initializing = false;
13219          afterLocationChange(oldUrl, oldState);
13220        }
13221      });
13222      if (!$rootScope.$$phase) $rootScope.$digest();
13223    });
13224
13225    // update browser
13226    $rootScope.$watch(function $locationWatch() {
13227      var oldUrl = trimEmptyHash($browser.url());
13228      var newUrl = trimEmptyHash($location.absUrl());
13229      var oldState = $browser.state();
13230      var currentReplace = $location.$$replace;
13231      var urlOrStateChanged = oldUrl !== newUrl ||
13232        ($location.$$html5 && $sniffer.history && oldState !== $location.$$state);
13233
13234      if (initializing || urlOrStateChanged) {
13235        initializing = false;
13236
13237        $rootScope.$evalAsync(function() {
13238          var newUrl = $location.absUrl();
13239          var defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl,
13240              $location.$$state, oldState).defaultPrevented;
13241
13242          // if the location was changed by a `$locationChangeStart` handler then stop
13243          // processing this location change
13244          if ($location.absUrl() !== newUrl) return;
13245
13246          if (defaultPrevented) {
13247            $location.$$parse(oldUrl);
13248            $location.$$state = oldState;
13249          } else {
13250            if (urlOrStateChanged) {
13251              setBrowserUrlWithFallback(newUrl, currentReplace,
13252                                        oldState === $location.$$state ? null : $location.$$state);
13253            }
13254            afterLocationChange(oldUrl, oldState);
13255          }
13256        });
13257      }
13258
13259      $location.$$replace = false;
13260
13261      // we don't need to return anything because $evalAsync will make the digest loop dirty when
13262      // there is a change
13263    });
13264
13265    return $location;
13266
13267    function afterLocationChange(oldUrl, oldState) {
13268      $rootScope.$broadcast('$locationChangeSuccess', $location.absUrl(), oldUrl,
13269        $location.$$state, oldState);
13270    }
13271}];
13272}
13273
13274/**
13275 * @ngdoc service
13276 * @name $log
13277 * @requires $window
13278 *
13279 * @description
13280 * Simple service for logging. Default implementation safely writes the message
13281 * into the browser's console (if present).
13282 *
13283 * The main purpose of this service is to simplify debugging and troubleshooting.
13284 *
13285 * The default is to log `debug` messages. You can use
13286 * {@link ng.$logProvider ng.$logProvider#debugEnabled} to change this.
13287 *
13288 * @example
13289   <example module="logExample">
13290     <file name="script.js">
13291       angular.module('logExample', [])
13292         .controller('LogController', ['$scope', '$log', function($scope, $log) {
13293           $scope.$log = $log;
13294           $scope.message = 'Hello World!';
13295         }]);
13296     </file>
13297     <file name="index.html">
13298       <div ng-controller="LogController">
13299         <p>Reload this page with open console, enter text and hit the log button...</p>
13300         <label>Message:
13301         <input type="text" ng-model="message" /></label>
13302         <button ng-click="$log.log(message)">log</button>
13303         <button ng-click="$log.warn(message)">warn</button>
13304         <button ng-click="$log.info(message)">info</button>
13305         <button ng-click="$log.error(message)">error</button>
13306         <button ng-click="$log.debug(message)">debug</button>
13307       </div>
13308     </file>
13309   </example>
13310 */
13311
13312/**
13313 * @ngdoc provider
13314 * @name $logProvider
13315 * @description
13316 * Use the `$logProvider` to configure how the application logs messages
13317 */
13318function $LogProvider() {
13319  var debug = true,
13320      self = this;
13321
13322  /**
13323   * @ngdoc method
13324   * @name $logProvider#debugEnabled
13325   * @description
13326   * @param {boolean=} flag enable or disable debug level messages
13327   * @returns {*} current value if used as getter or itself (chaining) if used as setter
13328   */
13329  this.debugEnabled = function(flag) {
13330    if (isDefined(flag)) {
13331      debug = flag;
13332    return this;
13333    } else {
13334      return debug;
13335    }
13336  };
13337
13338  this.$get = ['$window', function($window) {
13339    return {
13340      /**
13341       * @ngdoc method
13342       * @name $log#log
13343       *
13344       * @description
13345       * Write a log message
13346       */
13347      log: consoleLog('log'),
13348
13349      /**
13350       * @ngdoc method
13351       * @name $log#info
13352       *
13353       * @description
13354       * Write an information message
13355       */
13356      info: consoleLog('info'),
13357
13358      /**
13359       * @ngdoc method
13360       * @name $log#warn
13361       *
13362       * @description
13363       * Write a warning message
13364       */
13365      warn: consoleLog('warn'),
13366
13367      /**
13368       * @ngdoc method
13369       * @name $log#error
13370       *
13371       * @description
13372       * Write an error message
13373       */
13374      error: consoleLog('error'),
13375
13376      /**
13377       * @ngdoc method
13378       * @name $log#debug
13379       *
13380       * @description
13381       * Write a debug message
13382       */
13383      debug: (function() {
13384        var fn = consoleLog('debug');
13385
13386        return function() {
13387          if (debug) {
13388            fn.apply(self, arguments);
13389          }
13390        };
13391      }())
13392    };
13393
13394    function formatError(arg) {
13395      if (arg instanceof Error) {
13396        if (arg.stack) {
13397          arg = (arg.message && arg.stack.indexOf(arg.message) === -1)
13398              ? 'Error: ' + arg.message + '\n' + arg.stack
13399              : arg.stack;
13400        } else if (arg.sourceURL) {
13401          arg = arg.message + '\n' + arg.sourceURL + ':' + arg.line;
13402        }
13403      }
13404      return arg;
13405    }
13406
13407    function consoleLog(type) {
13408      var console = $window.console || {},
13409          logFn = console[type] || console.log || noop,
13410          hasApply = false;
13411
13412      // Note: reading logFn.apply throws an error in IE11 in IE8 document mode.
13413      // The reason behind this is that console.log has type "object" in IE8...
13414      try {
13415        hasApply = !!logFn.apply;
13416      } catch (e) {}
13417
13418      if (hasApply) {
13419        return function() {
13420          var args = [];
13421          forEach(arguments, function(arg) {
13422            args.push(formatError(arg));
13423          });
13424          return logFn.apply(console, args);
13425        };
13426      }
13427
13428      // we are IE which either doesn't have window.console => this is noop and we do nothing,
13429      // or we are IE where console.log doesn't have apply so we log at least first 2 args
13430      return function(arg1, arg2) {
13431        logFn(arg1, arg2 == null ? '' : arg2);
13432      };
13433    }
13434  }];
13435}
13436
13437/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
13438 *     Any commits to this file should be reviewed with security in mind.  *
13439 *   Changes to this file can potentially create security vulnerabilities. *
13440 *          An approval from 2 Core members with history of modifying      *
13441 *                         this file is required.                          *
13442 *                                                                         *
13443 *  Does the change somehow allow for arbitrary javascript to be executed? *
13444 *    Or allows for someone to change the prototype of built-in objects?   *
13445 *     Or gives undesired access to variables likes document or window?    *
13446 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
13447
13448var $parseMinErr = minErr('$parse');
13449
13450// Sandboxing Angular Expressions
13451// ------------------------------
13452// Angular expressions are generally considered safe because these expressions only have direct
13453// access to `$scope` and locals. However, one can obtain the ability to execute arbitrary JS code by
13454// obtaining a reference to native JS functions such as the Function constructor.
13455//
13456// As an example, consider the following Angular expression:
13457//
13458//   {}.toString.constructor('alert("evil JS code")')
13459//
13460// This sandboxing technique is not perfect and doesn't aim to be. The goal is to prevent exploits
13461// against the expression language, but not to prevent exploits that were enabled by exposing
13462// sensitive JavaScript or browser APIs on Scope. Exposing such objects on a Scope is never a good
13463// practice and therefore we are not even trying to protect against interaction with an object
13464// explicitly exposed in this way.
13465//
13466// In general, it is not possible to access a Window object from an angular expression unless a
13467// window or some DOM object that has a reference to window is published onto a Scope.
13468// Similarly we prevent invocations of function known to be dangerous, as well as assignments to
13469// native objects.
13470//
13471// See https://docs.angularjs.org/guide/security
13472
13473
13474function ensureSafeMemberName(name, fullExpression) {
13475  if (name === "__defineGetter__" || name === "__defineSetter__"
13476      || name === "__lookupGetter__" || name === "__lookupSetter__"
13477      || name === "__proto__") {
13478    throw $parseMinErr('isecfld',
13479        'Attempting to access a disallowed field in Angular expressions! '
13480        + 'Expression: {0}', fullExpression);
13481  }
13482  return name;
13483}
13484
13485function getStringValue(name) {
13486  // Property names must be strings. This means that non-string objects cannot be used
13487  // as keys in an object. Any non-string object, including a number, is typecasted
13488  // into a string via the toString method.
13489  // -- MDN, https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Operators/Property_accessors#Property_names
13490  //
13491  // So, to ensure that we are checking the same `name` that JavaScript would use, we cast it
13492  // to a string. It's not always possible. If `name` is an object and its `toString` method is
13493  // 'broken' (doesn't return a string, isn't a function, etc.), an error will be thrown:
13494  //
13495  // TypeError: Cannot convert object to primitive value
13496  //
13497  // For performance reasons, we don't catch this error here and allow it to propagate up the call
13498  // stack. Note that you'll get the same error in JavaScript if you try to access a property using
13499  // such a 'broken' object as a key.
13500  return name + '';
13501}
13502
13503function ensureSafeObject(obj, fullExpression) {
13504  // nifty check if obj is Function that is fast and works across iframes and other contexts
13505  if (obj) {
13506    if (obj.constructor === obj) {
13507      throw $parseMinErr('isecfn',
13508          'Referencing Function in Angular expressions is disallowed! Expression: {0}',
13509          fullExpression);
13510    } else if (// isWindow(obj)
13511        obj.window === obj) {
13512      throw $parseMinErr('isecwindow',
13513          'Referencing the Window in Angular expressions is disallowed! Expression: {0}',
13514          fullExpression);
13515    } else if (// isElement(obj)
13516        obj.children && (obj.nodeName || (obj.prop && obj.attr && obj.find))) {
13517      throw $parseMinErr('isecdom',
13518          'Referencing DOM nodes in Angular expressions is disallowed! Expression: {0}',
13519          fullExpression);
13520    } else if (// block Object so that we can't get hold of dangerous Object.* methods
13521        obj === Object) {
13522      throw $parseMinErr('isecobj',
13523          'Referencing Object in Angular expressions is disallowed! Expression: {0}',
13524          fullExpression);
13525    }
13526  }
13527  return obj;
13528}
13529
13530var CALL = Function.prototype.call;
13531var APPLY = Function.prototype.apply;
13532var BIND = Function.prototype.bind;
13533
13534function ensureSafeFunction(obj, fullExpression) {
13535  if (obj) {
13536    if (obj.constructor === obj) {
13537      throw $parseMinErr('isecfn',
13538        'Referencing Function in Angular expressions is disallowed! Expression: {0}',
13539        fullExpression);
13540    } else if (obj === CALL || obj === APPLY || obj === BIND) {
13541      throw $parseMinErr('isecff',
13542        'Referencing call, apply or bind in Angular expressions is disallowed! Expression: {0}',
13543        fullExpression);
13544    }
13545  }
13546}
13547
13548function ensureSafeAssignContext(obj, fullExpression) {
13549  if (obj) {
13550    if (obj === (0).constructor || obj === (false).constructor || obj === ''.constructor ||
13551        obj === {}.constructor || obj === [].constructor || obj === Function.constructor) {
13552      throw $parseMinErr('isecaf',
13553        'Assigning to a constructor is disallowed! Expression: {0}', fullExpression);
13554    }
13555  }
13556}
13557
13558var OPERATORS = createMap();
13559forEach('+ - * / % === !== == != < > <= >= && || ! = |'.split(' '), function(operator) { OPERATORS[operator] = true; });
13560var ESCAPE = {"n":"\n", "f":"\f", "r":"\r", "t":"\t", "v":"\v", "'":"'", '"':'"'};
13561
13562
13563/////////////////////////////////////////
13564
13565
13566/**
13567 * @constructor
13568 */
13569var Lexer = function(options) {
13570  this.options = options;
13571};
13572
13573Lexer.prototype = {
13574  constructor: Lexer,
13575
13576  lex: function(text) {
13577    this.text = text;
13578    this.index = 0;
13579    this.tokens = [];
13580
13581    while (this.index < this.text.length) {
13582      var ch = this.text.charAt(this.index);
13583      if (ch === '"' || ch === "'") {
13584        this.readString(ch);
13585      } else if (this.isNumber(ch) || ch === '.' && this.isNumber(this.peek())) {
13586        this.readNumber();
13587      } else if (this.isIdent(ch)) {
13588        this.readIdent();
13589      } else if (this.is(ch, '(){}[].,;:?')) {
13590        this.tokens.push({index: this.index, text: ch});
13591        this.index++;
13592      } else if (this.isWhitespace(ch)) {
13593        this.index++;
13594      } else {
13595        var ch2 = ch + this.peek();
13596        var ch3 = ch2 + this.peek(2);
13597        var op1 = OPERATORS[ch];
13598        var op2 = OPERATORS[ch2];
13599        var op3 = OPERATORS[ch3];
13600        if (op1 || op2 || op3) {
13601          var token = op3 ? ch3 : (op2 ? ch2 : ch);
13602          this.tokens.push({index: this.index, text: token, operator: true});
13603          this.index += token.length;
13604        } else {
13605          this.throwError('Unexpected next character ', this.index, this.index + 1);
13606        }
13607      }
13608    }
13609    return this.tokens;
13610  },
13611
13612  is: function(ch, chars) {
13613    return chars.indexOf(ch) !== -1;
13614  },
13615
13616  peek: function(i) {
13617    var num = i || 1;
13618    return (this.index + num < this.text.length) ? this.text.charAt(this.index + num) : false;
13619  },
13620
13621  isNumber: function(ch) {
13622    return ('0' <= ch && ch <= '9') && typeof ch === "string";
13623  },
13624
13625  isWhitespace: function(ch) {
13626    // IE treats non-breaking space as \u00A0
13627    return (ch === ' ' || ch === '\r' || ch === '\t' ||
13628            ch === '\n' || ch === '\v' || ch === '\u00A0');
13629  },
13630
13631  isIdent: function(ch) {
13632    return ('a' <= ch && ch <= 'z' ||
13633            'A' <= ch && ch <= 'Z' ||
13634            '_' === ch || ch === '$');
13635  },
13636
13637  isExpOperator: function(ch) {
13638    return (ch === '-' || ch === '+' || this.isNumber(ch));
13639  },
13640
13641  throwError: function(error, start, end) {
13642    end = end || this.index;
13643    var colStr = (isDefined(start)
13644            ? 's ' + start +  '-' + this.index + ' [' + this.text.substring(start, end) + ']'
13645            : ' ' + end);
13646    throw $parseMinErr('lexerr', 'Lexer Error: {0} at column{1} in expression [{2}].',
13647        error, colStr, this.text);
13648  },
13649
13650  readNumber: function() {
13651    var number = '';
13652    var start = this.index;
13653    while (this.index < this.text.length) {
13654      var ch = lowercase(this.text.charAt(this.index));
13655      if (ch == '.' || this.isNumber(ch)) {
13656        number += ch;
13657      } else {
13658        var peekCh = this.peek();
13659        if (ch == 'e' && this.isExpOperator(peekCh)) {
13660          number += ch;
13661        } else if (this.isExpOperator(ch) &&
13662            peekCh && this.isNumber(peekCh) &&
13663            number.charAt(number.length - 1) == 'e') {
13664          number += ch;
13665        } else if (this.isExpOperator(ch) &&
13666            (!peekCh || !this.isNumber(peekCh)) &&
13667            number.charAt(number.length - 1) == 'e') {
13668          this.throwError('Invalid exponent');
13669        } else {
13670          break;
13671        }
13672      }
13673      this.index++;
13674    }
13675    this.tokens.push({
13676      index: start,
13677      text: number,
13678      constant: true,
13679      value: Number(number)
13680    });
13681  },
13682
13683  readIdent: function() {
13684    var start = this.index;
13685    while (this.index < this.text.length) {
13686      var ch = this.text.charAt(this.index);
13687      if (!(this.isIdent(ch) || this.isNumber(ch))) {
13688        break;
13689      }
13690      this.index++;
13691    }
13692    this.tokens.push({
13693      index: start,
13694      text: this.text.slice(start, this.index),
13695      identifier: true
13696    });
13697  },
13698
13699  readString: function(quote) {
13700    var start = this.index;
13701    this.index++;
13702    var string = '';
13703    var rawString = quote;
13704    var escape = false;
13705    while (this.index < this.text.length) {
13706      var ch = this.text.charAt(this.index);
13707      rawString += ch;
13708      if (escape) {
13709        if (ch === 'u') {
13710          var hex = this.text.substring(this.index + 1, this.index + 5);
13711          if (!hex.match(/[\da-f]{4}/i)) {
13712            this.throwError('Invalid unicode escape [\\u' + hex + ']');
13713          }
13714          this.index += 4;
13715          string += String.fromCharCode(parseInt(hex, 16));
13716        } else {
13717          var rep = ESCAPE[ch];
13718          string = string + (rep || ch);
13719        }
13720        escape = false;
13721      } else if (ch === '\\') {
13722        escape = true;
13723      } else if (ch === quote) {
13724        this.index++;
13725        this.tokens.push({
13726          index: start,
13727          text: rawString,
13728          constant: true,
13729          value: string
13730        });
13731        return;
13732      } else {
13733        string += ch;
13734      }
13735      this.index++;
13736    }
13737    this.throwError('Unterminated quote', start);
13738  }
13739};
13740
13741var AST = function(lexer, options) {
13742  this.lexer = lexer;
13743  this.options = options;
13744};
13745
13746AST.Program = 'Program';
13747AST.ExpressionStatement = 'ExpressionStatement';
13748AST.AssignmentExpression = 'AssignmentExpression';
13749AST.ConditionalExpression = 'ConditionalExpression';
13750AST.LogicalExpression = 'LogicalExpression';
13751AST.BinaryExpression = 'BinaryExpression';
13752AST.UnaryExpression = 'UnaryExpression';
13753AST.CallExpression = 'CallExpression';
13754AST.MemberExpression = 'MemberExpression';
13755AST.Identifier = 'Identifier';
13756AST.Literal = 'Literal';
13757AST.ArrayExpression = 'ArrayExpression';
13758AST.Property = 'Property';
13759AST.ObjectExpression = 'ObjectExpression';
13760AST.ThisExpression = 'ThisExpression';
13761AST.LocalsExpression = 'LocalsExpression';
13762
13763// Internal use only
13764AST.NGValueParameter = 'NGValueParameter';
13765
13766AST.prototype = {
13767  ast: function(text) {
13768    this.text = text;
13769    this.tokens = this.lexer.lex(text);
13770
13771    var value = this.program();
13772
13773    if (this.tokens.length !== 0) {
13774      this.throwError('is an unexpected token', this.tokens[0]);
13775    }
13776
13777    return value;
13778  },
13779
13780  program: function() {
13781    var body = [];
13782    while (true) {
13783      if (this.tokens.length > 0 && !this.peek('}', ')', ';', ']'))
13784        body.push(this.expressionStatement());
13785      if (!this.expect(';')) {
13786        return { type: AST.Program, body: body};
13787      }
13788    }
13789  },
13790
13791  expressionStatement: function() {
13792    return { type: AST.ExpressionStatement, expression: this.filterChain() };
13793  },
13794
13795  filterChain: function() {
13796    var left = this.expression();
13797    var token;
13798    while ((token = this.expect('|'))) {
13799      left = this.filter(left);
13800    }
13801    return left;
13802  },
13803
13804  expression: function() {
13805    return this.assignment();
13806  },
13807
13808  assignment: function() {
13809    var result = this.ternary();
13810    if (this.expect('=')) {
13811      result = { type: AST.AssignmentExpression, left: result, right: this.assignment(), operator: '='};
13812    }
13813    return result;
13814  },
13815
13816  ternary: function() {
13817    var test = this.logicalOR();
13818    var alternate;
13819    var consequent;
13820    if (this.expect('?')) {
13821      alternate = this.expression();
13822      if (this.consume(':')) {
13823        consequent = this.expression();
13824        return { type: AST.ConditionalExpression, test: test, alternate: alternate, consequent: consequent};
13825      }
13826    }
13827    return test;
13828  },
13829
13830  logicalOR: function() {
13831    var left = this.logicalAND();
13832    while (this.expect('||')) {
13833      left = { type: AST.LogicalExpression, operator: '||', left: left, right: this.logicalAND() };
13834    }
13835    return left;
13836  },
13837
13838  logicalAND: function() {
13839    var left = this.equality();
13840    while (this.expect('&&')) {
13841      left = { type: AST.LogicalExpression, operator: '&&', left: left, right: this.equality()};
13842    }
13843    return left;
13844  },
13845
13846  equality: function() {
13847    var left = this.relational();
13848    var token;
13849    while ((token = this.expect('==','!=','===','!=='))) {
13850      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.relational() };
13851    }
13852    return left;
13853  },
13854
13855  relational: function() {
13856    var left = this.additive();
13857    var token;
13858    while ((token = this.expect('<', '>', '<=', '>='))) {
13859      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.additive() };
13860    }
13861    return left;
13862  },
13863
13864  additive: function() {
13865    var left = this.multiplicative();
13866    var token;
13867    while ((token = this.expect('+','-'))) {
13868      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.multiplicative() };
13869    }
13870    return left;
13871  },
13872
13873  multiplicative: function() {
13874    var left = this.unary();
13875    var token;
13876    while ((token = this.expect('*','/','%'))) {
13877      left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.unary() };
13878    }
13879    return left;
13880  },
13881
13882  unary: function() {
13883    var token;
13884    if ((token = this.expect('+', '-', '!'))) {
13885      return { type: AST.UnaryExpression, operator: token.text, prefix: true, argument: this.unary() };
13886    } else {
13887      return this.primary();
13888    }
13889  },
13890
13891  primary: function() {
13892    var primary;
13893    if (this.expect('(')) {
13894      primary = this.filterChain();
13895      this.consume(')');
13896    } else if (this.expect('[')) {
13897      primary = this.arrayDeclaration();
13898    } else if (this.expect('{')) {
13899      primary = this.object();
13900    } else if (this.selfReferential.hasOwnProperty(this.peek().text)) {
13901      primary = copy(this.selfReferential[this.consume().text]);
13902    } else if (this.options.literals.hasOwnProperty(this.peek().text)) {
13903      primary = { type: AST.Literal, value: this.options.literals[this.consume().text]};
13904    } else if (this.peek().identifier) {
13905      primary = this.identifier();
13906    } else if (this.peek().constant) {
13907      primary = this.constant();
13908    } else {
13909      this.throwError('not a primary expression', this.peek());
13910    }
13911
13912    var next;
13913    while ((next = this.expect('(', '[', '.'))) {
13914      if (next.text === '(') {
13915        primary = {type: AST.CallExpression, callee: primary, arguments: this.parseArguments() };
13916        this.consume(')');
13917      } else if (next.text === '[') {
13918        primary = { type: AST.MemberExpression, object: primary, property: this.expression(), computed: true };
13919        this.consume(']');
13920      } else if (next.text === '.') {
13921        primary = { type: AST.MemberExpression, object: primary, property: this.identifier(), computed: false };
13922      } else {
13923        this.throwError('IMPOSSIBLE');
13924      }
13925    }
13926    return primary;
13927  },
13928
13929  filter: function(baseExpression) {
13930    var args = [baseExpression];
13931    var result = {type: AST.CallExpression, callee: this.identifier(), arguments: args, filter: true};
13932
13933    while (this.expect(':')) {
13934      args.push(this.expression());
13935    }
13936
13937    return result;
13938  },
13939
13940  parseArguments: function() {
13941    var args = [];
13942    if (this.peekToken().text !== ')') {
13943      do {
13944        args.push(this.expression());
13945      } while (this.expect(','));
13946    }
13947    return args;
13948  },
13949
13950  identifier: function() {
13951    var token = this.consume();
13952    if (!token.identifier) {
13953      this.throwError('is not a valid identifier', token);
13954    }
13955    return { type: AST.Identifier, name: token.text };
13956  },
13957
13958  constant: function() {
13959    // TODO check that it is a constant
13960    return { type: AST.Literal, value: this.consume().value };
13961  },
13962
13963  arrayDeclaration: function() {
13964    var elements = [];
13965    if (this.peekToken().text !== ']') {
13966      do {
13967        if (this.peek(']')) {
13968          // Support trailing commas per ES5.1.
13969          break;
13970        }
13971        elements.push(this.expression());
13972      } while (this.expect(','));
13973    }
13974    this.consume(']');
13975
13976    return { type: AST.ArrayExpression, elements: elements };
13977  },
13978
13979  object: function() {
13980    var properties = [], property;
13981    if (this.peekToken().text !== '}') {
13982      do {
13983        if (this.peek('}')) {
13984          // Support trailing commas per ES5.1.
13985          break;
13986        }
13987        property = {type: AST.Property, kind: 'init'};
13988        if (this.peek().constant) {
13989          property.key = this.constant();
13990        } else if (this.peek().identifier) {
13991          property.key = this.identifier();
13992        } else {
13993          this.throwError("invalid key", this.peek());
13994        }
13995        this.consume(':');
13996        property.value = this.expression();
13997        properties.push(property);
13998      } while (this.expect(','));
13999    }
14000    this.consume('}');
14001
14002    return {type: AST.ObjectExpression, properties: properties };
14003  },
14004
14005  throwError: function(msg, token) {
14006    throw $parseMinErr('syntax',
14007        'Syntax Error: Token \'{0}\' {1} at column {2} of the expression [{3}] starting at [{4}].',
14008          token.text, msg, (token.index + 1), this.text, this.text.substring(token.index));
14009  },
14010
14011  consume: function(e1) {
14012    if (this.tokens.length === 0) {
14013      throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text);
14014    }
14015
14016    var token = this.expect(e1);
14017    if (!token) {
14018      this.throwError('is unexpected, expecting [' + e1 + ']', this.peek());
14019    }
14020    return token;
14021  },
14022
14023  peekToken: function() {
14024    if (this.tokens.length === 0) {
14025      throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text);
14026    }
14027    return this.tokens[0];
14028  },
14029
14030  peek: function(e1, e2, e3, e4) {
14031    return this.peekAhead(0, e1, e2, e3, e4);
14032  },
14033
14034  peekAhead: function(i, e1, e2, e3, e4) {
14035    if (this.tokens.length > i) {
14036      var token = this.tokens[i];
14037      var t = token.text;
14038      if (t === e1 || t === e2 || t === e3 || t === e4 ||
14039          (!e1 && !e2 && !e3 && !e4)) {
14040        return token;
14041      }
14042    }
14043    return false;
14044  },
14045
14046  expect: function(e1, e2, e3, e4) {
14047    var token = this.peek(e1, e2, e3, e4);
14048    if (token) {
14049      this.tokens.shift();
14050      return token;
14051    }
14052    return false;
14053  },
14054
14055  selfReferential: {
14056    'this': {type: AST.ThisExpression },
14057    '$locals': {type: AST.LocalsExpression }
14058  }
14059};
14060
14061function ifDefined(v, d) {
14062  return typeof v !== 'undefined' ? v : d;
14063}
14064
14065function plusFn(l, r) {
14066  if (typeof l === 'undefined') return r;
14067  if (typeof r === 'undefined') return l;
14068  return l + r;
14069}
14070
14071function isStateless($filter, filterName) {
14072  var fn = $filter(filterName);
14073  return !fn.$stateful;
14074}
14075
14076function findConstantAndWatchExpressions(ast, $filter) {
14077  var allConstants;
14078  var argsToWatch;
14079  switch (ast.type) {
14080  case AST.Program:
14081    allConstants = true;
14082    forEach(ast.body, function(expr) {
14083      findConstantAndWatchExpressions(expr.expression, $filter);
14084      allConstants = allConstants && expr.expression.constant;
14085    });
14086    ast.constant = allConstants;
14087    break;
14088  case AST.Literal:
14089    ast.constant = true;
14090    ast.toWatch = [];
14091    break;
14092  case AST.UnaryExpression:
14093    findConstantAndWatchExpressions(ast.argument, $filter);
14094    ast.constant = ast.argument.constant;
14095    ast.toWatch = ast.argument.toWatch;
14096    break;
14097  case AST.BinaryExpression:
14098    findConstantAndWatchExpressions(ast.left, $filter);
14099    findConstantAndWatchExpressions(ast.right, $filter);
14100    ast.constant = ast.left.constant && ast.right.constant;
14101    ast.toWatch = ast.left.toWatch.concat(ast.right.toWatch);
14102    break;
14103  case AST.LogicalExpression:
14104    findConstantAndWatchExpressions(ast.left, $filter);
14105    findConstantAndWatchExpressions(ast.right, $filter);
14106    ast.constant = ast.left.constant && ast.right.constant;
14107    ast.toWatch = ast.constant ? [] : [ast];
14108    break;
14109  case AST.ConditionalExpression:
14110    findConstantAndWatchExpressions(ast.test, $filter);
14111    findConstantAndWatchExpressions(ast.alternate, $filter);
14112    findConstantAndWatchExpressions(ast.consequent, $filter);
14113    ast.constant = ast.test.constant && ast.alternate.constant && ast.consequent.constant;
14114    ast.toWatch = ast.constant ? [] : [ast];
14115    break;
14116  case AST.Identifier:
14117    ast.constant = false;
14118    ast.toWatch = [ast];
14119    break;
14120  case AST.MemberExpression:
14121    findConstantAndWatchExpressions(ast.object, $filter);
14122    if (ast.computed) {
14123      findConstantAndWatchExpressions(ast.property, $filter);
14124    }
14125    ast.constant = ast.object.constant && (!ast.computed || ast.property.constant);
14126    ast.toWatch = [ast];
14127    break;
14128  case AST.CallExpression:
14129    allConstants = ast.filter ? isStateless($filter, ast.callee.name) : false;
14130    argsToWatch = [];
14131    forEach(ast.arguments, function(expr) {
14132      findConstantAndWatchExpressions(expr, $filter);
14133      allConstants = allConstants && expr.constant;
14134      if (!expr.constant) {
14135        argsToWatch.push.apply(argsToWatch, expr.toWatch);
14136      }
14137    });
14138    ast.constant = allConstants;
14139    ast.toWatch = ast.filter && isStateless($filter, ast.callee.name) ? argsToWatch : [ast];
14140    break;
14141  case AST.AssignmentExpression:
14142    findConstantAndWatchExpressions(ast.left, $filter);
14143    findConstantAndWatchExpressions(ast.right, $filter);
14144    ast.constant = ast.left.constant && ast.right.constant;
14145    ast.toWatch = [ast];
14146    break;
14147  case AST.ArrayExpression:
14148    allConstants = true;
14149    argsToWatch = [];
14150    forEach(ast.elements, function(expr) {
14151      findConstantAndWatchExpressions(expr, $filter);
14152      allConstants = allConstants && expr.constant;
14153      if (!expr.constant) {
14154        argsToWatch.push.apply(argsToWatch, expr.toWatch);
14155      }
14156    });
14157    ast.constant = allConstants;
14158    ast.toWatch = argsToWatch;
14159    break;
14160  case AST.ObjectExpression:
14161    allConstants = true;
14162    argsToWatch = [];
14163    forEach(ast.properties, function(property) {
14164      findConstantAndWatchExpressions(property.value, $filter);
14165      allConstants = allConstants && property.value.constant;
14166      if (!property.value.constant) {
14167        argsToWatch.push.apply(argsToWatch, property.value.toWatch);
14168      }
14169    });
14170    ast.constant = allConstants;
14171    ast.toWatch = argsToWatch;
14172    break;
14173  case AST.ThisExpression:
14174    ast.constant = false;
14175    ast.toWatch = [];
14176    break;
14177  case AST.LocalsExpression:
14178    ast.constant = false;
14179    ast.toWatch = [];
14180    break;
14181  }
14182}
14183
14184function getInputs(body) {
14185  if (body.length != 1) return;
14186  var lastExpression = body[0].expression;
14187  var candidate = lastExpression.toWatch;
14188  if (candidate.length !== 1) return candidate;
14189  return candidate[0] !== lastExpression ? candidate : undefined;
14190}
14191
14192function isAssignable(ast) {
14193  return ast.type === AST.Identifier || ast.type === AST.MemberExpression;
14194}
14195
14196function assignableAST(ast) {
14197  if (ast.body.length === 1 && isAssignable(ast.body[0].expression)) {
14198    return {type: AST.AssignmentExpression, left: ast.body[0].expression, right: {type: AST.NGValueParameter}, operator: '='};
14199  }
14200}
14201
14202function isLiteral(ast) {
14203  return ast.body.length === 0 ||
14204      ast.body.length === 1 && (
14205      ast.body[0].expression.type === AST.Literal ||
14206      ast.body[0].expression.type === AST.ArrayExpression ||
14207      ast.body[0].expression.type === AST.ObjectExpression);
14208}
14209
14210function isConstant(ast) {
14211  return ast.constant;
14212}
14213
14214function ASTCompiler(astBuilder, $filter) {
14215  this.astBuilder = astBuilder;
14216  this.$filter = $filter;
14217}
14218
14219ASTCompiler.prototype = {
14220  compile: function(expression, expensiveChecks) {
14221    var self = this;
14222    var ast = this.astBuilder.ast(expression);
14223    this.state = {
14224      nextId: 0,
14225      filters: {},
14226      expensiveChecks: expensiveChecks,
14227      fn: {vars: [], body: [], own: {}},
14228      assign: {vars: [], body: [], own: {}},
14229      inputs: []
14230    };
14231    findConstantAndWatchExpressions(ast, self.$filter);
14232    var extra = '';
14233    var assignable;
14234    this.stage = 'assign';
14235    if ((assignable = assignableAST(ast))) {
14236      this.state.computing = 'assign';
14237      var result = this.nextId();
14238      this.recurse(assignable, result);
14239      this.return_(result);
14240      extra = 'fn.assign=' + this.generateFunction('assign', 's,v,l');
14241    }
14242    var toWatch = getInputs(ast.body);
14243    self.stage = 'inputs';
14244    forEach(toWatch, function(watch, key) {
14245      var fnKey = 'fn' + key;
14246      self.state[fnKey] = {vars: [], body: [], own: {}};
14247      self.state.computing = fnKey;
14248      var intoId = self.nextId();
14249      self.recurse(watch, intoId);
14250      self.return_(intoId);
14251      self.state.inputs.push(fnKey);
14252      watch.watchId = key;
14253    });
14254    this.state.computing = 'fn';
14255    this.stage = 'main';
14256    this.recurse(ast);
14257    var fnString =
14258      // The build and minification steps remove the string "use strict" from the code, but this is done using a regex.
14259      // This is a workaround for this until we do a better job at only removing the prefix only when we should.
14260      '"' + this.USE + ' ' + this.STRICT + '";\n' +
14261      this.filterPrefix() +
14262      'var fn=' + this.generateFunction('fn', 's,l,a,i') +
14263      extra +
14264      this.watchFns() +
14265      'return fn;';
14266
14267    /* jshint -W054 */
14268    var fn = (new Function('$filter',
14269        'ensureSafeMemberName',
14270        'ensureSafeObject',
14271        'ensureSafeFunction',
14272        'getStringValue',
14273        'ensureSafeAssignContext',
14274        'ifDefined',
14275        'plus',
14276        'text',
14277        fnString))(
14278          this.$filter,
14279          ensureSafeMemberName,
14280          ensureSafeObject,
14281          ensureSafeFunction,
14282          getStringValue,
14283          ensureSafeAssignContext,
14284          ifDefined,
14285          plusFn,
14286          expression);
14287    /* jshint +W054 */
14288    this.state = this.stage = undefined;
14289    fn.literal = isLiteral(ast);
14290    fn.constant = isConstant(ast);
14291    return fn;
14292  },
14293
14294  USE: 'use',
14295
14296  STRICT: 'strict',
14297
14298  watchFns: function() {
14299    var result = [];
14300    var fns = this.state.inputs;
14301    var self = this;
14302    forEach(fns, function(name) {
14303      result.push('var ' + name + '=' + self.generateFunction(name, 's'));
14304    });
14305    if (fns.length) {
14306      result.push('fn.inputs=[' + fns.join(',') + '];');
14307    }
14308    return result.join('');
14309  },
14310
14311  generateFunction: function(name, params) {
14312    return 'function(' + params + '){' +
14313        this.varsPrefix(name) +
14314        this.body(name) +
14315        '};';
14316  },
14317
14318  filterPrefix: function() {
14319    var parts = [];
14320    var self = this;
14321    forEach(this.state.filters, function(id, filter) {
14322      parts.push(id + '=$filter(' + self.escape(filter) + ')');
14323    });
14324    if (parts.length) return 'var ' + parts.join(',') + ';';
14325    return '';
14326  },
14327
14328  varsPrefix: function(section) {
14329    return this.state[section].vars.length ? 'var ' + this.state[section].vars.join(',') + ';' : '';
14330  },
14331
14332  body: function(section) {
14333    return this.state[section].body.join('');
14334  },
14335
14336  recurse: function(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck) {
14337    var left, right, self = this, args, expression;
14338    recursionFn = recursionFn || noop;
14339    if (!skipWatchIdCheck && isDefined(ast.watchId)) {
14340      intoId = intoId || this.nextId();
14341      this.if_('i',
14342        this.lazyAssign(intoId, this.computedMember('i', ast.watchId)),
14343        this.lazyRecurse(ast, intoId, nameId, recursionFn, create, true)
14344      );
14345      return;
14346    }
14347    switch (ast.type) {
14348    case AST.Program:
14349      forEach(ast.body, function(expression, pos) {
14350        self.recurse(expression.expression, undefined, undefined, function(expr) { right = expr; });
14351        if (pos !== ast.body.length - 1) {
14352          self.current().body.push(right, ';');
14353        } else {
14354          self.return_(right);
14355        }
14356      });
14357      break;
14358    case AST.Literal:
14359      expression = this.escape(ast.value);
14360      this.assign(intoId, expression);
14361      recursionFn(expression);
14362      break;
14363    case AST.UnaryExpression:
14364      this.recurse(ast.argument, undefined, undefined, function(expr) { right = expr; });
14365      expression = ast.operator + '(' + this.ifDefined(right, 0) + ')';
14366      this.assign(intoId, expression);
14367      recursionFn(expression);
14368      break;
14369    case AST.BinaryExpression:
14370      this.recurse(ast.left, undefined, undefined, function(expr) { left = expr; });
14371      this.recurse(ast.right, undefined, undefined, function(expr) { right = expr; });
14372      if (ast.operator === '+') {
14373        expression = this.plus(left, right);
14374      } else if (ast.operator === '-') {
14375        expression = this.ifDefined(left, 0) + ast.operator + this.ifDefined(right, 0);
14376      } else {
14377        expression = '(' + left + ')' + ast.operator + '(' + right + ')';
14378      }
14379      this.assign(intoId, expression);
14380      recursionFn(expression);
14381      break;
14382    case AST.LogicalExpression:
14383      intoId = intoId || this.nextId();
14384      self.recurse(ast.left, intoId);
14385      self.if_(ast.operator === '&&' ? intoId : self.not(intoId), self.lazyRecurse(ast.right, intoId));
14386      recursionFn(intoId);
14387      break;
14388    case AST.ConditionalExpression:
14389      intoId = intoId || this.nextId();
14390      self.recurse(ast.test, intoId);
14391      self.if_(intoId, self.lazyRecurse(ast.alternate, intoId), self.lazyRecurse(ast.consequent, intoId));
14392      recursionFn(intoId);
14393      break;
14394    case AST.Identifier:
14395      intoId = intoId || this.nextId();
14396      if (nameId) {
14397        nameId.context = self.stage === 'inputs' ? 's' : this.assign(this.nextId(), this.getHasOwnProperty('l', ast.name) + '?l:s');
14398        nameId.computed = false;
14399        nameId.name = ast.name;
14400      }
14401      ensureSafeMemberName(ast.name);
14402      self.if_(self.stage === 'inputs' || self.not(self.getHasOwnProperty('l', ast.name)),
14403        function() {
14404          self.if_(self.stage === 'inputs' || 's', function() {
14405            if (create && create !== 1) {
14406              self.if_(
14407                self.not(self.nonComputedMember('s', ast.name)),
14408                self.lazyAssign(self.nonComputedMember('s', ast.name), '{}'));
14409            }
14410            self.assign(intoId, self.nonComputedMember('s', ast.name));
14411          });
14412        }, intoId && self.lazyAssign(intoId, self.nonComputedMember('l', ast.name))
14413        );
14414      if (self.state.expensiveChecks || isPossiblyDangerousMemberName(ast.name)) {
14415        self.addEnsureSafeObject(intoId);
14416      }
14417      recursionFn(intoId);
14418      break;
14419    case AST.MemberExpression:
14420      left = nameId && (nameId.context = this.nextId()) || this.nextId();
14421      intoId = intoId || this.nextId();
14422      self.recurse(ast.object, left, undefined, function() {
14423        self.if_(self.notNull(left), function() {
14424          if (create && create !== 1) {
14425            self.addEnsureSafeAssignContext(left);
14426          }
14427          if (ast.computed) {
14428            right = self.nextId();
14429            self.recurse(ast.property, right);
14430            self.getStringValue(right);
14431            self.addEnsureSafeMemberName(right);
14432            if (create && create !== 1) {
14433              self.if_(self.not(self.computedMember(left, right)), self.lazyAssign(self.computedMember(left, right), '{}'));
14434            }
14435            expression = self.ensureSafeObject(self.computedMember(left, right));
14436            self.assign(intoId, expression);
14437            if (nameId) {
14438              nameId.computed = true;
14439              nameId.name = right;
14440            }
14441          } else {
14442            ensureSafeMemberName(ast.property.name);
14443            if (create && create !== 1) {
14444              self.if_(self.not(self.nonComputedMember(left, ast.property.name)), self.lazyAssign(self.nonComputedMember(left, ast.property.name), '{}'));
14445            }
14446            expression = self.nonComputedMember(left, ast.property.name);
14447            if (self.state.expensiveChecks || isPossiblyDangerousMemberName(ast.property.name)) {
14448              expression = self.ensureSafeObject(expression);
14449            }
14450            self.assign(intoId, expression);
14451            if (nameId) {
14452              nameId.computed = false;
14453              nameId.name = ast.property.name;
14454            }
14455          }
14456        }, function() {
14457          self.assign(intoId, 'undefined');
14458        });
14459        recursionFn(intoId);
14460      }, !!create);
14461      break;
14462    case AST.CallExpression:
14463      intoId = intoId || this.nextId();
14464      if (ast.filter) {
14465        right = self.filter(ast.callee.name);
14466        args = [];
14467        forEach(ast.arguments, function(expr) {
14468          var argument = self.nextId();
14469          self.recurse(expr, argument);
14470          args.push(argument);
14471        });
14472        expression = right + '(' + args.join(',') + ')';
14473        self.assign(intoId, expression);
14474        recursionFn(intoId);
14475      } else {
14476        right = self.nextId();
14477        left = {};
14478        args = [];
14479        self.recurse(ast.callee, right, left, function() {
14480          self.if_(self.notNull(right), function() {
14481            self.addEnsureSafeFunction(right);
14482            forEach(ast.arguments, function(expr) {
14483              self.recurse(expr, self.nextId(), undefined, function(argument) {
14484                args.push(self.ensureSafeObject(argument));
14485              });
14486            });
14487            if (left.name) {
14488              if (!self.state.expensiveChecks) {
14489                self.addEnsureSafeObject(left.context);
14490              }
14491              expression = self.member(left.context, left.name, left.computed) + '(' + args.join(',') + ')';
14492            } else {
14493              expression = right + '(' + args.join(',') + ')';
14494            }
14495            expression = self.ensureSafeObject(expression);
14496            self.assign(intoId, expression);
14497          }, function() {
14498            self.assign(intoId, 'undefined');
14499          });
14500          recursionFn(intoId);
14501        });
14502      }
14503      break;
14504    case AST.AssignmentExpression:
14505      right = this.nextId();
14506      left = {};
14507      if (!isAssignable(ast.left)) {
14508        throw $parseMinErr('lval', 'Trying to assign a value to a non l-value');
14509      }
14510      this.recurse(ast.left, undefined, left, function() {
14511        self.if_(self.notNull(left.context), function() {
14512          self.recurse(ast.right, right);
14513          self.addEnsureSafeObject(self.member(left.context, left.name, left.computed));
14514          self.addEnsureSafeAssignContext(left.context);
14515          expression = self.member(left.context, left.name, left.computed) + ast.operator + right;
14516          self.assign(intoId, expression);
14517          recursionFn(intoId || expression);
14518        });
14519      }, 1);
14520      break;
14521    case AST.ArrayExpression:
14522      args = [];
14523      forEach(ast.elements, function(expr) {
14524        self.recurse(expr, self.nextId(), undefined, function(argument) {
14525          args.push(argument);
14526        });
14527      });
14528      expression = '[' + args.join(',') + ']';
14529      this.assign(intoId, expression);
14530      recursionFn(expression);
14531      break;
14532    case AST.ObjectExpression:
14533      args = [];
14534      forEach(ast.properties, function(property) {
14535        self.recurse(property.value, self.nextId(), undefined, function(expr) {
14536          args.push(self.escape(
14537              property.key.type === AST.Identifier ? property.key.name :
14538                ('' + property.key.value)) +
14539              ':' + expr);
14540        });
14541      });
14542      expression = '{' + args.join(',') + '}';
14543      this.assign(intoId, expression);
14544      recursionFn(expression);
14545      break;
14546    case AST.ThisExpression:
14547      this.assign(intoId, 's');
14548      recursionFn('s');
14549      break;
14550    case AST.LocalsExpression:
14551      this.assign(intoId, 'l');
14552      recursionFn('l');
14553      break;
14554    case AST.NGValueParameter:
14555      this.assign(intoId, 'v');
14556      recursionFn('v');
14557      break;
14558    }
14559  },
14560
14561  getHasOwnProperty: function(element, property) {
14562    var key = element + '.' + property;
14563    var own = this.current().own;
14564    if (!own.hasOwnProperty(key)) {
14565      own[key] = this.nextId(false, element + '&&(' + this.escape(property) + ' in ' + element + ')');
14566    }
14567    return own[key];
14568  },
14569
14570  assign: function(id, value) {
14571    if (!id) return;
14572    this.current().body.push(id, '=', value, ';');
14573    return id;
14574  },
14575
14576  filter: function(filterName) {
14577    if (!this.state.filters.hasOwnProperty(filterName)) {
14578      this.state.filters[filterName] = this.nextId(true);
14579    }
14580    return this.state.filters[filterName];
14581  },
14582
14583  ifDefined: function(id, defaultValue) {
14584    return 'ifDefined(' + id + ',' + this.escape(defaultValue) + ')';
14585  },
14586
14587  plus: function(left, right) {
14588    return 'plus(' + left + ',' + right + ')';
14589  },
14590
14591  return_: function(id) {
14592    this.current().body.push('return ', id, ';');
14593  },
14594
14595  if_: function(test, alternate, consequent) {
14596    if (test === true) {
14597      alternate();
14598    } else {
14599      var body = this.current().body;
14600      body.push('if(', test, '){');
14601      alternate();
14602      body.push('}');
14603      if (consequent) {
14604        body.push('else{');
14605        consequent();
14606        body.push('}');
14607      }
14608    }
14609  },
14610
14611  not: function(expression) {
14612    return '!(' + expression + ')';
14613  },
14614
14615  notNull: function(expression) {
14616    return expression + '!=null';
14617  },
14618
14619  nonComputedMember: function(left, right) {
14620    return left + '.' + right;
14621  },
14622
14623  computedMember: function(left, right) {
14624    return left + '[' + right + ']';
14625  },
14626
14627  member: function(left, right, computed) {
14628    if (computed) return this.computedMember(left, right);
14629    return this.nonComputedMember(left, right);
14630  },
14631
14632  addEnsureSafeObject: function(item) {
14633    this.current().body.push(this.ensureSafeObject(item), ';');
14634  },
14635
14636  addEnsureSafeMemberName: function(item) {
14637    this.current().body.push(this.ensureSafeMemberName(item), ';');
14638  },
14639
14640  addEnsureSafeFunction: function(item) {
14641    this.current().body.push(this.ensureSafeFunction(item), ';');
14642  },
14643
14644  addEnsureSafeAssignContext: function(item) {
14645    this.current().body.push(this.ensureSafeAssignContext(item), ';');
14646  },
14647
14648  ensureSafeObject: function(item) {
14649    return 'ensureSafeObject(' + item + ',text)';
14650  },
14651
14652  ensureSafeMemberName: function(item) {
14653    return 'ensureSafeMemberName(' + item + ',text)';
14654  },
14655
14656  ensureSafeFunction: function(item) {
14657    return 'ensureSafeFunction(' + item + ',text)';
14658  },
14659
14660  getStringValue: function(item) {
14661    this.assign(item, 'getStringValue(' + item + ')');
14662  },
14663
14664  ensureSafeAssignContext: function(item) {
14665    return 'ensureSafeAssignContext(' + item + ',text)';
14666  },
14667
14668  lazyRecurse: function(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck) {
14669    var self = this;
14670    return function() {
14671      self.recurse(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck);
14672    };
14673  },
14674
14675  lazyAssign: function(id, value) {
14676    var self = this;
14677    return function() {
14678      self.assign(id, value);
14679    };
14680  },
14681
14682  stringEscapeRegex: /[^ a-zA-Z0-9]/g,
14683
14684  stringEscapeFn: function(c) {
14685    return '\\u' + ('0000' + c.charCodeAt(0).toString(16)).slice(-4);
14686  },
14687
14688  escape: function(value) {
14689    if (isString(value)) return "'" + value.replace(this.stringEscapeRegex, this.stringEscapeFn) + "'";
14690    if (isNumber(value)) return value.toString();
14691    if (value === true) return 'true';
14692    if (value === false) return 'false';
14693    if (value === null) return 'null';
14694    if (typeof value === 'undefined') return 'undefined';
14695
14696    throw $parseMinErr('esc', 'IMPOSSIBLE');
14697  },
14698
14699  nextId: function(skip, init) {
14700    var id = 'v' + (this.state.nextId++);
14701    if (!skip) {
14702      this.current().vars.push(id + (init ? '=' + init : ''));
14703    }
14704    return id;
14705  },
14706
14707  current: function() {
14708    return this.state[this.state.computing];
14709  }
14710};
14711
14712
14713function ASTInterpreter(astBuilder, $filter) {
14714  this.astBuilder = astBuilder;
14715  this.$filter = $filter;
14716}
14717
14718ASTInterpreter.prototype = {
14719  compile: function(expression, expensiveChecks) {
14720    var self = this;
14721    var ast = this.astBuilder.ast(expression);
14722    this.expression = expression;
14723    this.expensiveChecks = expensiveChecks;
14724    findConstantAndWatchExpressions(ast, self.$filter);
14725    var assignable;
14726    var assign;
14727    if ((assignable = assignableAST(ast))) {
14728      assign = this.recurse(assignable);
14729    }
14730    var toWatch = getInputs(ast.body);
14731    var inputs;
14732    if (toWatch) {
14733      inputs = [];
14734      forEach(toWatch, function(watch, key) {
14735        var input = self.recurse(watch);
14736        watch.input = input;
14737        inputs.push(input);
14738        watch.watchId = key;
14739      });
14740    }
14741    var expressions = [];
14742    forEach(ast.body, function(expression) {
14743      expressions.push(self.recurse(expression.expression));
14744    });
14745    var fn = ast.body.length === 0 ? noop :
14746             ast.body.length === 1 ? expressions[0] :
14747             function(scope, locals) {
14748               var lastValue;
14749               forEach(expressions, function(exp) {
14750                 lastValue = exp(scope, locals);
14751               });
14752               return lastValue;
14753             };
14754    if (assign) {
14755      fn.assign = function(scope, value, locals) {
14756        return assign(scope, locals, value);
14757      };
14758    }
14759    if (inputs) {
14760      fn.inputs = inputs;
14761    }
14762    fn.literal = isLiteral(ast);
14763    fn.constant = isConstant(ast);
14764    return fn;
14765  },
14766
14767  recurse: function(ast, context, create) {
14768    var left, right, self = this, args, expression;
14769    if (ast.input) {
14770      return this.inputs(ast.input, ast.watchId);
14771    }
14772    switch (ast.type) {
14773    case AST.Literal:
14774      return this.value(ast.value, context);
14775    case AST.UnaryExpression:
14776      right = this.recurse(ast.argument);
14777      return this['unary' + ast.operator](right, context);
14778    case AST.BinaryExpression:
14779      left = this.recurse(ast.left);
14780      right = this.recurse(ast.right);
14781      return this['binary' + ast.operator](left, right, context);
14782    case AST.LogicalExpression:
14783      left = this.recurse(ast.left);
14784      right = this.recurse(ast.right);
14785      return this['binary' + ast.operator](left, right, context);
14786    case AST.ConditionalExpression:
14787      return this['ternary?:'](
14788        this.recurse(ast.test),
14789        this.recurse(ast.alternate),
14790        this.recurse(ast.consequent),
14791        context
14792      );
14793    case AST.Identifier:
14794      ensureSafeMemberName(ast.name, self.expression);
14795      return self.identifier(ast.name,
14796                             self.expensiveChecks || isPossiblyDangerousMemberName(ast.name),
14797                             context, create, self.expression);
14798    case AST.MemberExpression:
14799      left = this.recurse(ast.object, false, !!create);
14800      if (!ast.computed) {
14801        ensureSafeMemberName(ast.property.name, self.expression);
14802        right = ast.property.name;
14803      }
14804      if (ast.computed) right = this.recurse(ast.property);
14805      return ast.computed ?
14806        this.computedMember(left, right, context, create, self.expression) :
14807        this.nonComputedMember(left, right, self.expensiveChecks, context, create, self.expression);
14808    case AST.CallExpression:
14809      args = [];
14810      forEach(ast.arguments, function(expr) {
14811        args.push(self.recurse(expr));
14812      });
14813      if (ast.filter) right = this.$filter(ast.callee.name);
14814      if (!ast.filter) right = this.recurse(ast.callee, true);
14815      return ast.filter ?
14816        function(scope, locals, assign, inputs) {
14817          var values = [];
14818          for (var i = 0; i < args.length; ++i) {
14819            values.push(args[i](scope, locals, assign, inputs));
14820          }
14821          var value = right.apply(undefined, values, inputs);
14822          return context ? {context: undefined, name: undefined, value: value} : value;
14823        } :
14824        function(scope, locals, assign, inputs) {
14825          var rhs = right(scope, locals, assign, inputs);
14826          var value;
14827          if (rhs.value != null) {
14828            ensureSafeObject(rhs.context, self.expression);
14829            ensureSafeFunction(rhs.value, self.expression);
14830            var values = [];
14831            for (var i = 0; i < args.length; ++i) {
14832              values.push(ensureSafeObject(args[i](scope, locals, assign, inputs), self.expression));
14833            }
14834            value = ensureSafeObject(rhs.value.apply(rhs.context, values), self.expression);
14835          }
14836          return context ? {value: value} : value;
14837        };
14838    case AST.AssignmentExpression:
14839      left = this.recurse(ast.left, true, 1);
14840      right = this.recurse(ast.right);
14841      return function(scope, locals, assign, inputs) {
14842        var lhs = left(scope, locals, assign, inputs);
14843        var rhs = right(scope, locals, assign, inputs);
14844        ensureSafeObject(lhs.value, self.expression);
14845        ensureSafeAssignContext(lhs.context);
14846        lhs.context[lhs.name] = rhs;
14847        return context ? {value: rhs} : rhs;
14848      };
14849    case AST.ArrayExpression:
14850      args = [];
14851      forEach(ast.elements, function(expr) {
14852        args.push(self.recurse(expr));
14853      });
14854      return function(scope, locals, assign, inputs) {
14855        var value = [];
14856        for (var i = 0; i < args.length; ++i) {
14857          value.push(args[i](scope, locals, assign, inputs));
14858        }
14859        return context ? {value: value} : value;
14860      };
14861    case AST.ObjectExpression:
14862      args = [];
14863      forEach(ast.properties, function(property) {
14864        args.push({key: property.key.type === AST.Identifier ?
14865                        property.key.name :
14866                        ('' + property.key.value),
14867                   value: self.recurse(property.value)
14868        });
14869      });
14870      return function(scope, locals, assign, inputs) {
14871        var value = {};
14872        for (var i = 0; i < args.length; ++i) {
14873          value[args[i].key] = args[i].value(scope, locals, assign, inputs);
14874        }
14875        return context ? {value: value} : value;
14876      };
14877    case AST.ThisExpression:
14878      return function(scope) {
14879        return context ? {value: scope} : scope;
14880      };
14881    case AST.LocalsExpression:
14882      return function(scope, locals) {
14883        return context ? {value: locals} : locals;
14884      };
14885    case AST.NGValueParameter:
14886      return function(scope, locals, assign) {
14887        return context ? {value: assign} : assign;
14888      };
14889    }
14890  },
14891
14892  'unary+': function(argument, context) {
14893    return function(scope, locals, assign, inputs) {
14894      var arg = argument(scope, locals, assign, inputs);
14895      if (isDefined(arg)) {
14896        arg = +arg;
14897      } else {
14898        arg = 0;
14899      }
14900      return context ? {value: arg} : arg;
14901    };
14902  },
14903  'unary-': function(argument, context) {
14904    return function(scope, locals, assign, inputs) {
14905      var arg = argument(scope, locals, assign, inputs);
14906      if (isDefined(arg)) {
14907        arg = -arg;
14908      } else {
14909        arg = 0;
14910      }
14911      return context ? {value: arg} : arg;
14912    };
14913  },
14914  'unary!': function(argument, context) {
14915    return function(scope, locals, assign, inputs) {
14916      var arg = !argument(scope, locals, assign, inputs);
14917      return context ? {value: arg} : arg;
14918    };
14919  },
14920  'binary+': function(left, right, context) {
14921    return function(scope, locals, assign, inputs) {
14922      var lhs = left(scope, locals, assign, inputs);
14923      var rhs = right(scope, locals, assign, inputs);
14924      var arg = plusFn(lhs, rhs);
14925      return context ? {value: arg} : arg;
14926    };
14927  },
14928  'binary-': function(left, right, context) {
14929    return function(scope, locals, assign, inputs) {
14930      var lhs = left(scope, locals, assign, inputs);
14931      var rhs = right(scope, locals, assign, inputs);
14932      var arg = (isDefined(lhs) ? lhs : 0) - (isDefined(rhs) ? rhs : 0);
14933      return context ? {value: arg} : arg;
14934    };
14935  },
14936  'binary*': function(left, right, context) {
14937    return function(scope, locals, assign, inputs) {
14938      var arg = left(scope, locals, assign, inputs) * right(scope, locals, assign, inputs);
14939      return context ? {value: arg} : arg;
14940    };
14941  },
14942  'binary/': function(left, right, context) {
14943    return function(scope, locals, assign, inputs) {
14944      var arg = left(scope, locals, assign, inputs) / right(scope, locals, assign, inputs);
14945      return context ? {value: arg} : arg;
14946    };
14947  },
14948  'binary%': function(left, right, context) {
14949    return function(scope, locals, assign, inputs) {
14950      var arg = left(scope, locals, assign, inputs) % right(scope, locals, assign, inputs);
14951      return context ? {value: arg} : arg;
14952    };
14953  },
14954  'binary===': function(left, right, context) {
14955    return function(scope, locals, assign, inputs) {
14956      var arg = left(scope, locals, assign, inputs) === right(scope, locals, assign, inputs);
14957      return context ? {value: arg} : arg;
14958    };
14959  },
14960  'binary!==': function(left, right, context) {
14961    return function(scope, locals, assign, inputs) {
14962      var arg = left(scope, locals, assign, inputs) !== right(scope, locals, assign, inputs);
14963      return context ? {value: arg} : arg;
14964    };
14965  },
14966  'binary==': function(left, right, context) {
14967    return function(scope, locals, assign, inputs) {
14968      var arg = left(scope, locals, assign, inputs) == right(scope, locals, assign, inputs);
14969      return context ? {value: arg} : arg;
14970    };
14971  },
14972  'binary!=': function(left, right, context) {
14973    return function(scope, locals, assign, inputs) {
14974      var arg = left(scope, locals, assign, inputs) != right(scope, locals, assign, inputs);
14975      return context ? {value: arg} : arg;
14976    };
14977  },
14978  'binary<': function(left, right, context) {
14979    return function(scope, locals, assign, inputs) {
14980      var arg = left(scope, locals, assign, inputs) < right(scope, locals, assign, inputs);
14981      return context ? {value: arg} : arg;
14982    };
14983  },
14984  'binary>': function(left, right, context) {
14985    return function(scope, locals, assign, inputs) {
14986      var arg = left(scope, locals, assign, inputs) > right(scope, locals, assign, inputs);
14987      return context ? {value: arg} : arg;
14988    };
14989  },
14990  'binary<=': function(left, right, context) {
14991    return function(scope, locals, assign, inputs) {
14992      var arg = left(scope, locals, assign, inputs) <= right(scope, locals, assign, inputs);
14993      return context ? {value: arg} : arg;
14994    };
14995  },
14996  'binary>=': function(left, right, context) {
14997    return function(scope, locals, assign, inputs) {
14998      var arg = left(scope, locals, assign, inputs) >= right(scope, locals, assign, inputs);
14999      return context ? {value: arg} : arg;
15000    };
15001  },
15002  'binary&&': function(left, right, context) {
15003    return function(scope, locals, assign, inputs) {
15004      var arg = left(scope, locals, assign, inputs) && right(scope, locals, assign, inputs);
15005      return context ? {value: arg} : arg;
15006    };
15007  },
15008  'binary||': function(left, right, context) {
15009    return function(scope, locals, assign, inputs) {
15010      var arg = left(scope, locals, assign, inputs) || right(scope, locals, assign, inputs);
15011      return context ? {value: arg} : arg;
15012    };
15013  },
15014  'ternary?:': function(test, alternate, consequent, context) {
15015    return function(scope, locals, assign, inputs) {
15016      var arg = test(scope, locals, assign, inputs) ? alternate(scope, locals, assign, inputs) : consequent(scope, locals, assign, inputs);
15017      return context ? {value: arg} : arg;
15018    };
15019  },
15020  value: function(value, context) {
15021    return function() { return context ? {context: undefined, name: undefined, value: value} : value; };
15022  },
15023  identifier: function(name, expensiveChecks, context, create, expression) {
15024    return function(scope, locals, assign, inputs) {
15025      var base = locals && (name in locals) ? locals : scope;
15026      if (create && create !== 1 && base && !(base[name])) {
15027        base[name] = {};
15028      }
15029      var value = base ? base[name] : undefined;
15030      if (expensiveChecks) {
15031        ensureSafeObject(value, expression);
15032      }
15033      if (context) {
15034        return {context: base, name: name, value: value};
15035      } else {
15036        return value;
15037      }
15038    };
15039  },
15040  computedMember: function(left, right, context, create, expression) {
15041    return function(scope, locals, assign, inputs) {
15042      var lhs = left(scope, locals, assign, inputs);
15043      var rhs;
15044      var value;
15045      if (lhs != null) {
15046        rhs = right(scope, locals, assign, inputs);
15047        rhs = getStringValue(rhs);
15048        ensureSafeMemberName(rhs, expression);
15049        if (create && create !== 1) {
15050          ensureSafeAssignContext(lhs);
15051          if (lhs && !(lhs[rhs])) {
15052            lhs[rhs] = {};
15053          }
15054        }
15055        value = lhs[rhs];
15056        ensureSafeObject(value, expression);
15057      }
15058      if (context) {
15059        return {context: lhs, name: rhs, value: value};
15060      } else {
15061        return value;
15062      }
15063    };
15064  },
15065  nonComputedMember: function(left, right, expensiveChecks, context, create, expression) {
15066    return function(scope, locals, assign, inputs) {
15067      var lhs = left(scope, locals, assign, inputs);
15068      if (create && create !== 1) {
15069        ensureSafeAssignContext(lhs);
15070        if (lhs && !(lhs[right])) {
15071          lhs[right] = {};
15072        }
15073      }
15074      var value = lhs != null ? lhs[right] : undefined;
15075      if (expensiveChecks || isPossiblyDangerousMemberName(right)) {
15076        ensureSafeObject(value, expression);
15077      }
15078      if (context) {
15079        return {context: lhs, name: right, value: value};
15080      } else {
15081        return value;
15082      }
15083    };
15084  },
15085  inputs: function(input, watchId) {
15086    return function(scope, value, locals, inputs) {
15087      if (inputs) return inputs[watchId];
15088      return input(scope, value, locals);
15089    };
15090  }
15091};
15092
15093/**
15094 * @constructor
15095 */
15096var Parser = function(lexer, $filter, options) {
15097  this.lexer = lexer;
15098  this.$filter = $filter;
15099  this.options = options;
15100  this.ast = new AST(lexer, options);
15101  this.astCompiler = options.csp ? new ASTInterpreter(this.ast, $filter) :
15102                                   new ASTCompiler(this.ast, $filter);
15103};
15104
15105Parser.prototype = {
15106  constructor: Parser,
15107
15108  parse: function(text) {
15109    return this.astCompiler.compile(text, this.options.expensiveChecks);
15110  }
15111};
15112
15113function isPossiblyDangerousMemberName(name) {
15114  return name == 'constructor';
15115}
15116
15117var objectValueOf = Object.prototype.valueOf;
15118
15119function getValueOf(value) {
15120  return isFunction(value.valueOf) ? value.valueOf() : objectValueOf.call(value);
15121}
15122
15123///////////////////////////////////
15124
15125/**
15126 * @ngdoc service
15127 * @name $parse
15128 * @kind function
15129 *
15130 * @description
15131 *
15132 * Converts Angular {@link guide/expression expression} into a function.
15133 *
15134 * ```js
15135 *   var getter = $parse('user.name');
15136 *   var setter = getter.assign;
15137 *   var context = {user:{name:'angular'}};
15138 *   var locals = {user:{name:'local'}};
15139 *
15140 *   expect(getter(context)).toEqual('angular');
15141 *   setter(context, 'newValue');
15142 *   expect(context.user.name).toEqual('newValue');
15143 *   expect(getter(context, locals)).toEqual('local');
15144 * ```
15145 *
15146 *
15147 * @param {string} expression String expression to compile.
15148 * @returns {function(context, locals)} a function which represents the compiled expression:
15149 *
15150 *    * `context` – `{object}` – an object against which any expressions embedded in the strings
15151 *      are evaluated against (typically a scope object).
15152 *    * `locals` – `{object=}` – local variables context object, useful for overriding values in
15153 *      `context`.
15154 *
15155 *    The returned function also has the following properties:
15156 *      * `literal` – `{boolean}` – whether the expression's top-level node is a JavaScript
15157 *        literal.
15158 *      * `constant` – `{boolean}` – whether the expression is made entirely of JavaScript
15159 *        constant literals.
15160 *      * `assign` – `{?function(context, value)}` – if the expression is assignable, this will be
15161 *        set to a function to change its value on the given context.
15162 *
15163 */
15164
15165
15166/**
15167 * @ngdoc provider
15168 * @name $parseProvider
15169 *
15170 * @description
15171 * `$parseProvider` can be used for configuring the default behavior of the {@link ng.$parse $parse}
15172 *  service.
15173 */
15174function $ParseProvider() {
15175  var cacheDefault = createMap();
15176  var cacheExpensive = createMap();
15177  var literals = {
15178    'true': true,
15179    'false': false,
15180    'null': null,
15181    'undefined': undefined
15182  };
15183
15184  /**
15185   * @ngdoc method
15186   * @name $parseProvider#addLiteral
15187   * @description
15188   *
15189   * Configure $parse service to add literal values that will be present as literal at expressions.
15190   *
15191   * @param {string} literalName Token for the literal value. The literal name value must be a valid literal name.
15192   * @param {*} literalValue Value for this literal. All literal values must be primitives or `undefined`.
15193   *
15194   **/
15195  this.addLiteral = function(literalName, literalValue) {
15196    literals[literalName] = literalValue;
15197  };
15198
15199  this.$get = ['$filter', function($filter) {
15200    var noUnsafeEval = csp().noUnsafeEval;
15201    var $parseOptions = {
15202          csp: noUnsafeEval,
15203          expensiveChecks: false,
15204          literals: copy(literals)
15205        },
15206        $parseOptionsExpensive = {
15207          csp: noUnsafeEval,
15208          expensiveChecks: true,
15209          literals: copy(literals)
15210        };
15211    var runningChecksEnabled = false;
15212
15213    $parse.$$runningExpensiveChecks = function() {
15214      return runningChecksEnabled;
15215    };
15216
15217    return $parse;
15218
15219    function $parse(exp, interceptorFn, expensiveChecks) {
15220      var parsedExpression, oneTime, cacheKey;
15221
15222      expensiveChecks = expensiveChecks || runningChecksEnabled;
15223
15224      switch (typeof exp) {
15225        case 'string':
15226          exp = exp.trim();
15227          cacheKey = exp;
15228
15229          var cache = (expensiveChecks ? cacheExpensive : cacheDefault);
15230          parsedExpression = cache[cacheKey];
15231
15232          if (!parsedExpression) {
15233            if (exp.charAt(0) === ':' && exp.charAt(1) === ':') {
15234              oneTime = true;
15235              exp = exp.substring(2);
15236            }
15237            var parseOptions = expensiveChecks ? $parseOptionsExpensive : $parseOptions;
15238            var lexer = new Lexer(parseOptions);
15239            var parser = new Parser(lexer, $filter, parseOptions);
15240            parsedExpression = parser.parse(exp);
15241            if (parsedExpression.constant) {
15242              parsedExpression.$$watchDelegate = constantWatchDelegate;
15243            } else if (oneTime) {
15244              parsedExpression.$$watchDelegate = parsedExpression.literal ?
15245                  oneTimeLiteralWatchDelegate : oneTimeWatchDelegate;
15246            } else if (parsedExpression.inputs) {
15247              parsedExpression.$$watchDelegate = inputsWatchDelegate;
15248            }
15249            if (expensiveChecks) {
15250              parsedExpression = expensiveChecksInterceptor(parsedExpression);
15251            }
15252            cache[cacheKey] = parsedExpression;
15253          }
15254          return addInterceptor(parsedExpression, interceptorFn);
15255
15256        case 'function':
15257          return addInterceptor(exp, interceptorFn);
15258
15259        default:
15260          return addInterceptor(noop, interceptorFn);
15261      }
15262    }
15263
15264    function expensiveChecksInterceptor(fn) {
15265      if (!fn) return fn;
15266      expensiveCheckFn.$$watchDelegate = fn.$$watchDelegate;
15267      expensiveCheckFn.assign = expensiveChecksInterceptor(fn.assign);
15268      expensiveCheckFn.constant = fn.constant;
15269      expensiveCheckFn.literal = fn.literal;
15270      for (var i = 0; fn.inputs && i < fn.inputs.length; ++i) {
15271        fn.inputs[i] = expensiveChecksInterceptor(fn.inputs[i]);
15272      }
15273      expensiveCheckFn.inputs = fn.inputs;
15274
15275      return expensiveCheckFn;
15276
15277      function expensiveCheckFn(scope, locals, assign, inputs) {
15278        var expensiveCheckOldValue = runningChecksEnabled;
15279        runningChecksEnabled = true;
15280        try {
15281          return fn(scope, locals, assign, inputs);
15282        } finally {
15283          runningChecksEnabled = expensiveCheckOldValue;
15284        }
15285      }
15286    }
15287
15288    function expressionInputDirtyCheck(newValue, oldValueOfValue) {
15289
15290      if (newValue == null || oldValueOfValue == null) { // null/undefined
15291        return newValue === oldValueOfValue;
15292      }
15293
15294      if (typeof newValue === 'object') {
15295
15296        // attempt to convert the value to a primitive type
15297        // TODO(docs): add a note to docs that by implementing valueOf even objects and arrays can
15298        //             be cheaply dirty-checked
15299        newValue = getValueOf(newValue);
15300
15301        if (typeof newValue === 'object') {
15302          // objects/arrays are not supported - deep-watching them would be too expensive
15303          return false;
15304        }
15305
15306        // fall-through to the primitive equality check
15307      }
15308
15309      //Primitive or NaN
15310      return newValue === oldValueOfValue || (newValue !== newValue && oldValueOfValue !== oldValueOfValue);
15311    }
15312
15313    function inputsWatchDelegate(scope, listener, objectEquality, parsedExpression, prettyPrintExpression) {
15314      var inputExpressions = parsedExpression.inputs;
15315      var lastResult;
15316
15317      if (inputExpressions.length === 1) {
15318        var oldInputValueOf = expressionInputDirtyCheck; // init to something unique so that equals check fails
15319        inputExpressions = inputExpressions[0];
15320        return scope.$watch(function expressionInputWatch(scope) {
15321          var newInputValue = inputExpressions(scope);
15322          if (!expressionInputDirtyCheck(newInputValue, oldInputValueOf)) {
15323            lastResult = parsedExpression(scope, undefined, undefined, [newInputValue]);
15324            oldInputValueOf = newInputValue && getValueOf(newInputValue);
15325          }
15326          return lastResult;
15327        }, listener, objectEquality, prettyPrintExpression);
15328      }
15329
15330      var oldInputValueOfValues = [];
15331      var oldInputValues = [];
15332      for (var i = 0, ii = inputExpressions.length; i < ii; i++) {
15333        oldInputValueOfValues[i] = expressionInputDirtyCheck; // init to something unique so that equals check fails
15334        oldInputValues[i] = null;
15335      }
15336
15337      return scope.$watch(function expressionInputsWatch(scope) {
15338        var changed = false;
15339
15340        for (var i = 0, ii = inputExpressions.length; i < ii; i++) {
15341          var newInputValue = inputExpressions[i](scope);
15342          if (changed || (changed = !expressionInputDirtyCheck(newInputValue, oldInputValueOfValues[i]))) {
15343            oldInputValues[i] = newInputValue;
15344            oldInputValueOfValues[i] = newInputValue && getValueOf(newInputValue);
15345          }
15346        }
15347
15348        if (changed) {
15349          lastResult = parsedExpression(scope, undefined, undefined, oldInputValues);
15350        }
15351
15352        return lastResult;
15353      }, listener, objectEquality, prettyPrintExpression);
15354    }
15355
15356    function oneTimeWatchDelegate(scope, listener, objectEquality, parsedExpression) {
15357      var unwatch, lastValue;
15358      return unwatch = scope.$watch(function oneTimeWatch(scope) {
15359        return parsedExpression(scope);
15360      }, function oneTimeListener(value, old, scope) {
15361        lastValue = value;
15362        if (isFunction(listener)) {
15363          listener.apply(this, arguments);
15364        }
15365        if (isDefined(value)) {
15366          scope.$$postDigest(function() {
15367            if (isDefined(lastValue)) {
15368              unwatch();
15369            }
15370          });
15371        }
15372      }, objectEquality);
15373    }
15374
15375    function oneTimeLiteralWatchDelegate(scope, listener, objectEquality, parsedExpression) {
15376      var unwatch, lastValue;
15377      return unwatch = scope.$watch(function oneTimeWatch(scope) {
15378        return parsedExpression(scope);
15379      }, function oneTimeListener(value, old, scope) {
15380        lastValue = value;
15381        if (isFunction(listener)) {
15382          listener.call(this, value, old, scope);
15383        }
15384        if (isAllDefined(value)) {
15385          scope.$$postDigest(function() {
15386            if (isAllDefined(lastValue)) unwatch();
15387          });
15388        }
15389      }, objectEquality);
15390
15391      function isAllDefined(value) {
15392        var allDefined = true;
15393        forEach(value, function(val) {
15394          if (!isDefined(val)) allDefined = false;
15395        });
15396        return allDefined;
15397      }
15398    }
15399
15400    function constantWatchDelegate(scope, listener, objectEquality, parsedExpression) {
15401      var unwatch;
15402      return unwatch = scope.$watch(function constantWatch(scope) {
15403        unwatch();
15404        return parsedExpression(scope);
15405      }, listener, objectEquality);
15406    }
15407
15408    function addInterceptor(parsedExpression, interceptorFn) {
15409      if (!interceptorFn) return parsedExpression;
15410      var watchDelegate = parsedExpression.$$watchDelegate;
15411      var useInputs = false;
15412
15413      var regularWatch =
15414          watchDelegate !== oneTimeLiteralWatchDelegate &&
15415          watchDelegate !== oneTimeWatchDelegate;
15416
15417      var fn = regularWatch ? function regularInterceptedExpression(scope, locals, assign, inputs) {
15418        var value = useInputs && inputs ? inputs[0] : parsedExpression(scope, locals, assign, inputs);
15419        return interceptorFn(value, scope, locals);
15420      } : function oneTimeInterceptedExpression(scope, locals, assign, inputs) {
15421        var value = parsedExpression(scope, locals, assign, inputs);
15422        var result = interceptorFn(value, scope, locals);
15423        // we only return the interceptor's result if the
15424        // initial value is defined (for bind-once)
15425        return isDefined(value) ? result : value;
15426      };
15427
15428      // Propagate $$watchDelegates other then inputsWatchDelegate
15429      if (parsedExpression.$$watchDelegate &&
15430          parsedExpression.$$watchDelegate !== inputsWatchDelegate) {
15431        fn.$$watchDelegate = parsedExpression.$$watchDelegate;
15432      } else if (!interceptorFn.$stateful) {
15433        // If there is an interceptor, but no watchDelegate then treat the interceptor like
15434        // we treat filters - it is assumed to be a pure function unless flagged with $stateful
15435        fn.$$watchDelegate = inputsWatchDelegate;
15436        useInputs = !parsedExpression.inputs;
15437        fn.inputs = parsedExpression.inputs ? parsedExpression.inputs : [parsedExpression];
15438      }
15439
15440      return fn;
15441    }
15442  }];
15443}
15444
15445/**
15446 * @ngdoc service
15447 * @name $q
15448 * @requires $rootScope
15449 *
15450 * @description
15451 * A service that helps you run functions asynchronously, and use their return values (or exceptions)
15452 * when they are done processing.
15453 *
15454 * This is an implementation of promises/deferred objects inspired by
15455 * [Kris Kowal's Q](https://github.com/kriskowal/q).
15456 *
15457 * $q can be used in two fashions --- one which is more similar to Kris Kowal's Q or jQuery's Deferred
15458 * implementations, and the other which resembles ES6 (ES2015) promises to some degree.
15459 *
15460 * # $q constructor
15461 *
15462 * The streamlined ES6 style promise is essentially just using $q as a constructor which takes a `resolver`
15463 * function as the first argument. This is similar to the native Promise implementation from ES6,
15464 * see [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise).
15465 *
15466 * While the constructor-style use is supported, not all of the supporting methods from ES6 promises are
15467 * available yet.
15468 *
15469 * It can be used like so:
15470 *
15471 * ```js
15472 *   // for the purpose of this example let's assume that variables `$q` and `okToGreet`
15473 *   // are available in the current lexical scope (they could have been injected or passed in).
15474 *
15475 *   function asyncGreet(name) {
15476 *     // perform some asynchronous operation, resolve or reject the promise when appropriate.
15477 *     return $q(function(resolve, reject) {
15478 *       setTimeout(function() {
15479 *         if (okToGreet(name)) {
15480 *           resolve('Hello, ' + name + '!');
15481 *         } else {
15482 *           reject('Greeting ' + name + ' is not allowed.');
15483 *         }
15484 *       }, 1000);
15485 *     });
15486 *   }
15487 *
15488 *   var promise = asyncGreet('Robin Hood');
15489 *   promise.then(function(greeting) {
15490 *     alert('Success: ' + greeting);
15491 *   }, function(reason) {
15492 *     alert('Failed: ' + reason);
15493 *   });
15494 * ```
15495 *
15496 * Note: progress/notify callbacks are not currently supported via the ES6-style interface.
15497 *
15498 * Note: unlike ES6 behavior, an exception thrown in the constructor function will NOT implicitly reject the promise.
15499 *
15500 * However, the more traditional CommonJS-style usage is still available, and documented below.
15501 *
15502 * [The CommonJS Promise proposal](http://wiki.commonjs.org/wiki/Promises) describes a promise as an
15503 * interface for interacting with an object that represents the result of an action that is
15504 * performed asynchronously, and may or may not be finished at any given point in time.
15505 *
15506 * From the perspective of dealing with error handling, deferred and promise APIs are to
15507 * asynchronous programming what `try`, `catch` and `throw` keywords are to synchronous programming.
15508 *
15509 * ```js
15510 *   // for the purpose of this example let's assume that variables `$q` and `okToGreet`
15511 *   // are available in the current lexical scope (they could have been injected or passed in).
15512 *
15513 *   function asyncGreet(name) {
15514 *     var deferred = $q.defer();
15515 *
15516 *     setTimeout(function() {
15517 *       deferred.notify('About to greet ' + name + '.');
15518 *
15519 *       if (okToGreet(name)) {
15520 *         deferred.resolve('Hello, ' + name + '!');
15521 *       } else {
15522 *         deferred.reject('Greeting ' + name + ' is not allowed.');
15523 *       }
15524 *     }, 1000);
15525 *
15526 *     return deferred.promise;
15527 *   }
15528 *
15529 *   var promise = asyncGreet('Robin Hood');
15530 *   promise.then(function(greeting) {
15531 *     alert('Success: ' + greeting);
15532 *   }, function(reason) {
15533 *     alert('Failed: ' + reason);
15534 *   }, function(update) {
15535 *     alert('Got notification: ' + update);
15536 *   });
15537 * ```
15538 *
15539 * At first it might not be obvious why this extra complexity is worth the trouble. The payoff
15540 * comes in the way of guarantees that promise and deferred APIs make, see
15541 * https://github.com/kriskowal/uncommonjs/blob/master/promises/specification.md.
15542 *
15543 * Additionally the promise api allows for composition that is very hard to do with the
15544 * traditional callback ([CPS](http://en.wikipedia.org/wiki/Continuation-passing_style)) approach.
15545 * For more on this please see the [Q documentation](https://github.com/kriskowal/q) especially the
15546 * section on serial or parallel joining of promises.
15547 *
15548 * # The Deferred API
15549 *
15550 * A new instance of deferred is constructed by calling `$q.defer()`.
15551 *
15552 * The purpose of the deferred object is to expose the associated Promise instance as well as APIs
15553 * that can be used for signaling the successful or unsuccessful completion, as well as the status
15554 * of the task.
15555 *
15556 * **Methods**
15557 *
15558 * - `resolve(value)` – resolves the derived promise with the `value`. If the value is a rejection
15559 *   constructed via `$q.reject`, the promise will be rejected instead.
15560 * - `reject(reason)` – rejects the derived promise with the `reason`. This is equivalent to
15561 *   resolving it with a rejection constructed via `$q.reject`.
15562 * - `notify(value)` - provides updates on the status of the promise's execution. This may be called
15563 *   multiple times before the promise is either resolved or rejected.
15564 *
15565 * **Properties**
15566 *
15567 * - promise – `{Promise}` – promise object associated with this deferred.
15568 *
15569 *
15570 * # The Promise API
15571 *
15572 * A new promise instance is created when a deferred instance is created and can be retrieved by
15573 * calling `deferred.promise`.
15574 *
15575 * The purpose of the promise object is to allow for interested parties to get access to the result
15576 * of the deferred task when it completes.
15577 *
15578 * **Methods**
15579 *
15580 * - `then(successCallback, errorCallback, notifyCallback)` – regardless of when the promise was or
15581 *   will be resolved or rejected, `then` calls one of the success or error callbacks asynchronously
15582 *   as soon as the result is available. The callbacks are called with a single argument: the result
15583 *   or rejection reason. Additionally, the notify callback may be called zero or more times to
15584 *   provide a progress indication, before the promise is resolved or rejected.
15585 *
15586 *   This method *returns a new promise* which is resolved or rejected via the return value of the
15587 *   `successCallback`, `errorCallback` (unless that value is a promise, in which case it is resolved
15588 *   with the value which is resolved in that promise using
15589 *   [promise chaining](http://www.html5rocks.com/en/tutorials/es6/promises/#toc-promises-queues)).
15590 *   It also notifies via the return value of the `notifyCallback` method. The promise cannot be
15591 *   resolved or rejected from the notifyCallback method.
15592 *
15593 * - `catch(errorCallback)` – shorthand for `promise.then(null, errorCallback)`
15594 *
15595 * - `finally(callback, notifyCallback)` – allows you to observe either the fulfillment or rejection of a promise,
15596 *   but to do so without modifying the final value. This is useful to release resources or do some
15597 *   clean-up that needs to be done whether the promise was rejected or resolved. See the [full
15598 *   specification](https://github.com/kriskowal/q/wiki/API-Reference#promisefinallycallback) for
15599 *   more information.
15600 *
15601 * # Chaining promises
15602 *
15603 * Because calling the `then` method of a promise returns a new derived promise, it is easily
15604 * possible to create a chain of promises:
15605 *
15606 * ```js
15607 *   promiseB = promiseA.then(function(result) {
15608 *     return result + 1;
15609 *   });
15610 *
15611 *   // promiseB will be resolved immediately after promiseA is resolved and its value
15612 *   // will be the result of promiseA incremented by 1
15613 * ```
15614 *
15615 * It is possible to create chains of any length and since a promise can be resolved with another
15616 * promise (which will defer its resolution further), it is possible to pause/defer resolution of
15617 * the promises at any point in the chain. This makes it possible to implement powerful APIs like
15618 * $http's response interceptors.
15619 *
15620 *
15621 * # Differences between Kris Kowal's Q and $q
15622 *
15623 *  There are two main differences:
15624 *
15625 * - $q is integrated with the {@link ng.$rootScope.Scope} Scope model observation
15626 *   mechanism in angular, which means faster propagation of resolution or rejection into your
15627 *   models and avoiding unnecessary browser repaints, which would result in flickering UI.
15628 * - Q has many more features than $q, but that comes at a cost of bytes. $q is tiny, but contains
15629 *   all the important functionality needed for common async tasks.
15630 *
15631 * # Testing
15632 *
15633 *  ```js
15634 *    it('should simulate promise', inject(function($q, $rootScope) {
15635 *      var deferred = $q.defer();
15636 *      var promise = deferred.promise;
15637 *      var resolvedValue;
15638 *
15639 *      promise.then(function(value) { resolvedValue = value; });
15640 *      expect(resolvedValue).toBeUndefined();
15641 *
15642 *      // Simulate resolving of promise
15643 *      deferred.resolve(123);
15644 *      // Note that the 'then' function does not get called synchronously.
15645 *      // This is because we want the promise API to always be async, whether or not
15646 *      // it got called synchronously or asynchronously.
15647 *      expect(resolvedValue).toBeUndefined();
15648 *
15649 *      // Propagate promise resolution to 'then' functions using $apply().
15650 *      $rootScope.$apply();
15651 *      expect(resolvedValue).toEqual(123);
15652 *    }));
15653 *  ```
15654 *
15655 * @param {function(function, function)} resolver Function which is responsible for resolving or
15656 *   rejecting the newly created promise. The first parameter is a function which resolves the
15657 *   promise, the second parameter is a function which rejects the promise.
15658 *
15659 * @returns {Promise} The newly created promise.
15660 */
15661function $QProvider() {
15662
15663  this.$get = ['$rootScope', '$exceptionHandler', function($rootScope, $exceptionHandler) {
15664    return qFactory(function(callback) {
15665      $rootScope.$evalAsync(callback);
15666    }, $exceptionHandler);
15667  }];
15668}
15669
15670function $$QProvider() {
15671  this.$get = ['$browser', '$exceptionHandler', function($browser, $exceptionHandler) {
15672    return qFactory(function(callback) {
15673      $browser.defer(callback);
15674    }, $exceptionHandler);
15675  }];
15676}
15677
15678/**
15679 * Constructs a promise manager.
15680 *
15681 * @param {function(function)} nextTick Function for executing functions in the next turn.
15682 * @param {function(...*)} exceptionHandler Function into which unexpected exceptions are passed for
15683 *     debugging purposes.
15684 * @returns {object} Promise manager.
15685 */
15686function qFactory(nextTick, exceptionHandler) {
15687  var $qMinErr = minErr('$q', TypeError);
15688
15689  /**
15690   * @ngdoc method
15691   * @name ng.$q#defer
15692   * @kind function
15693   *
15694   * @description
15695   * Creates a `Deferred` object which represents a task which will finish in the future.
15696   *
15697   * @returns {Deferred} Returns a new instance of deferred.
15698   */
15699  var defer = function() {
15700    var d = new Deferred();
15701    //Necessary to support unbound execution :/
15702    d.resolve = simpleBind(d, d.resolve);
15703    d.reject = simpleBind(d, d.reject);
15704    d.notify = simpleBind(d, d.notify);
15705    return d;
15706  };
15707
15708  function Promise() {
15709    this.$$state = { status: 0 };
15710  }
15711
15712  extend(Promise.prototype, {
15713    then: function(onFulfilled, onRejected, progressBack) {
15714      if (isUndefined(onFulfilled) && isUndefined(onRejected) && isUndefined(progressBack)) {
15715        return this;
15716      }
15717      var result = new Deferred();
15718
15719      this.$$state.pending = this.$$state.pending || [];
15720      this.$$state.pending.push([result, onFulfilled, onRejected, progressBack]);
15721      if (this.$$state.status > 0) scheduleProcessQueue(this.$$state);
15722
15723      return result.promise;
15724    },
15725
15726    "catch": function(callback) {
15727      return this.then(null, callback);
15728    },
15729
15730    "finally": function(callback, progressBack) {
15731      return this.then(function(value) {
15732        return handleCallback(value, true, callback);
15733      }, function(error) {
15734        return handleCallback(error, false, callback);
15735      }, progressBack);
15736    }
15737  });
15738
15739  //Faster, more basic than angular.bind http://jsperf.com/angular-bind-vs-custom-vs-native
15740  function simpleBind(context, fn) {
15741    return function(value) {
15742      fn.call(context, value);
15743    };
15744  }
15745
15746  function processQueue(state) {
15747    var fn, deferred, pending;
15748
15749    pending = state.pending;
15750    state.processScheduled = false;
15751    state.pending = undefined;
15752    for (var i = 0, ii = pending.length; i < ii; ++i) {
15753      deferred = pending[i][0];
15754      fn = pending[i][state.status];
15755      try {
15756        if (isFunction(fn)) {
15757          deferred.resolve(fn(state.value));
15758        } else if (state.status === 1) {
15759          deferred.resolve(state.value);
15760        } else {
15761          deferred.reject(state.value);
15762        }
15763      } catch (e) {
15764        deferred.reject(e);
15765        exceptionHandler(e);
15766      }
15767    }
15768  }
15769
15770  function scheduleProcessQueue(state) {
15771    if (state.processScheduled || !state.pending) return;
15772    state.processScheduled = true;
15773    nextTick(function() { processQueue(state); });
15774  }
15775
15776  function Deferred() {
15777    this.promise = new Promise();
15778  }
15779
15780  extend(Deferred.prototype, {
15781    resolve: function(val) {
15782      if (this.promise.$$state.status) return;
15783      if (val === this.promise) {
15784        this.$$reject($qMinErr(
15785          'qcycle',
15786          "Expected promise to be resolved with value other than itself '{0}'",
15787          val));
15788      } else {
15789        this.$$resolve(val);
15790      }
15791
15792    },
15793
15794    $$resolve: function(val) {
15795      var then;
15796      var that = this;
15797      var done = false;
15798      try {
15799        if ((isObject(val) || isFunction(val))) then = val && val.then;
15800        if (isFunction(then)) {
15801          this.promise.$$state.status = -1;
15802          then.call(val, resolvePromise, rejectPromise, simpleBind(this, this.notify));
15803        } else {
15804          this.promise.$$state.value = val;
15805          this.promise.$$state.status = 1;
15806          scheduleProcessQueue(this.promise.$$state);
15807        }
15808      } catch (e) {
15809        rejectPromise(e);
15810        exceptionHandler(e);
15811      }
15812
15813      function resolvePromise(val) {
15814        if (done) return;
15815        done = true;
15816        that.$$resolve(val);
15817      }
15818      function rejectPromise(val) {
15819        if (done) return;
15820        done = true;
15821        that.$$reject(val);
15822      }
15823    },
15824
15825    reject: function(reason) {
15826      if (this.promise.$$state.status) return;
15827      this.$$reject(reason);
15828    },
15829
15830    $$reject: function(reason) {
15831      this.promise.$$state.value = reason;
15832      this.promise.$$state.status = 2;
15833      scheduleProcessQueue(this.promise.$$state);
15834    },
15835
15836    notify: function(progress) {
15837      var callbacks = this.promise.$$state.pending;
15838
15839      if ((this.promise.$$state.status <= 0) && callbacks && callbacks.length) {
15840        nextTick(function() {
15841          var callback, result;
15842          for (var i = 0, ii = callbacks.length; i < ii; i++) {
15843            result = callbacks[i][0];
15844            callback = callbacks[i][3];
15845            try {
15846              result.notify(isFunction(callback) ? callback(progress) : progress);
15847            } catch (e) {
15848              exceptionHandler(e);
15849            }
15850          }
15851        });
15852      }
15853    }
15854  });
15855
15856  /**
15857   * @ngdoc method
15858   * @name $q#reject
15859   * @kind function
15860   *
15861   * @description
15862   * Creates a promise that is resolved as rejected with the specified `reason`. This api should be
15863   * used to forward rejection in a chain of promises. If you are dealing with the last promise in
15864   * a promise chain, you don't need to worry about it.
15865   *
15866   * When comparing deferreds/promises to the familiar behavior of try/catch/throw, think of
15867   * `reject` as the `throw` keyword in JavaScript. This also means that if you "catch" an error via
15868   * a promise error callback and you want to forward the error to the promise derived from the
15869   * current promise, you have to "rethrow" the error by returning a rejection constructed via
15870   * `reject`.
15871   *
15872   * ```js
15873   *   promiseB = promiseA.then(function(result) {
15874   *     // success: do something and resolve promiseB
15875   *     //          with the old or a new result
15876   *     return result;
15877   *   }, function(reason) {
15878   *     // error: handle the error if possible and
15879   *     //        resolve promiseB with newPromiseOrValue,
15880   *     //        otherwise forward the rejection to promiseB
15881   *     if (canHandle(reason)) {
15882   *      // handle the error and recover
15883   *      return newPromiseOrValue;
15884   *     }
15885   *     return $q.reject(reason);
15886   *   });
15887   * ```
15888   *
15889   * @param {*} reason Constant, message, exception or an object representing the rejection reason.
15890   * @returns {Promise} Returns a promise that was already resolved as rejected with the `reason`.
15891   */
15892  var reject = function(reason) {
15893    var result = new Deferred();
15894    result.reject(reason);
15895    return result.promise;
15896  };
15897
15898  var makePromise = function makePromise(value, resolved) {
15899    var result = new Deferred();
15900    if (resolved) {
15901      result.resolve(value);
15902    } else {
15903      result.reject(value);
15904    }
15905    return result.promise;
15906  };
15907
15908  var handleCallback = function handleCallback(value, isResolved, callback) {
15909    var callbackOutput = null;
15910    try {
15911      if (isFunction(callback)) callbackOutput = callback();
15912    } catch (e) {
15913      return makePromise(e, false);
15914    }
15915    if (isPromiseLike(callbackOutput)) {
15916      return callbackOutput.then(function() {
15917        return makePromise(value, isResolved);
15918      }, function(error) {
15919        return makePromise(error, false);
15920      });
15921    } else {
15922      return makePromise(value, isResolved);
15923    }
15924  };
15925
15926  /**
15927   * @ngdoc method
15928   * @name $q#when
15929   * @kind function
15930   *
15931   * @description
15932   * Wraps an object that might be a value or a (3rd party) then-able promise into a $q promise.
15933   * This is useful when you are dealing with an object that might or might not be a promise, or if
15934   * the promise comes from a source that can't be trusted.
15935   *
15936   * @param {*} value Value or a promise
15937   * @param {Function=} successCallback
15938   * @param {Function=} errorCallback
15939   * @param {Function=} progressCallback
15940   * @returns {Promise} Returns a promise of the passed value or promise
15941   */
15942
15943
15944  var when = function(value, callback, errback, progressBack) {
15945    var result = new Deferred();
15946    result.resolve(value);
15947    return result.promise.then(callback, errback, progressBack);
15948  };
15949
15950  /**
15951   * @ngdoc method
15952   * @name $q#resolve
15953   * @kind function
15954   *
15955   * @description
15956   * Alias of {@link ng.$q#when when} to maintain naming consistency with ES6.
15957   *
15958   * @param {*} value Value or a promise
15959   * @param {Function=} successCallback
15960   * @param {Function=} errorCallback
15961   * @param {Function=} progressCallback
15962   * @returns {Promise} Returns a promise of the passed value or promise
15963   */
15964  var resolve = when;
15965
15966  /**
15967   * @ngdoc method
15968   * @name $q#all
15969   * @kind function
15970   *
15971   * @description
15972   * Combines multiple promises into a single promise that is resolved when all of the input
15973   * promises are resolved.
15974   *
15975   * @param {Array.<Promise>|Object.<Promise>} promises An array or hash of promises.
15976   * @returns {Promise} Returns a single promise that will be resolved with an array/hash of values,
15977   *   each value corresponding to the promise at the same index/key in the `promises` array/hash.
15978   *   If any of the promises is resolved with a rejection, this resulting promise will be rejected
15979   *   with the same rejection value.
15980   */
15981
15982  function all(promises) {
15983    var deferred = new Deferred(),
15984        counter = 0,
15985        results = isArray(promises) ? [] : {};
15986
15987    forEach(promises, function(promise, key) {
15988      counter++;
15989      when(promise).then(function(value) {
15990        if (results.hasOwnProperty(key)) return;
15991        results[key] = value;
15992        if (!(--counter)) deferred.resolve(results);
15993      }, function(reason) {
15994        if (results.hasOwnProperty(key)) return;
15995        deferred.reject(reason);
15996      });
15997    });
15998
15999    if (counter === 0) {
16000      deferred.resolve(results);
16001    }
16002
16003    return deferred.promise;
16004  }
16005
16006  var $Q = function Q(resolver) {
16007    if (!isFunction(resolver)) {
16008      throw $qMinErr('norslvr', "Expected resolverFn, got '{0}'", resolver);
16009    }
16010
16011    var deferred = new Deferred();
16012
16013    function resolveFn(value) {
16014      deferred.resolve(value);
16015    }
16016
16017    function rejectFn(reason) {
16018      deferred.reject(reason);
16019    }
16020
16021    resolver(resolveFn, rejectFn);
16022
16023    return deferred.promise;
16024  };
16025
16026  // Let's make the instanceof operator work for promises, so that
16027  // `new $q(fn) instanceof $q` would evaluate to true.
16028  $Q.prototype = Promise.prototype;
16029
16030  $Q.defer = defer;
16031  $Q.reject = reject;
16032  $Q.when = when;
16033  $Q.resolve = resolve;
16034  $Q.all = all;
16035
16036  return $Q;
16037}
16038
16039function $$RAFProvider() { //rAF
16040  this.$get = ['$window', '$timeout', function($window, $timeout) {
16041    var requestAnimationFrame = $window.requestAnimationFrame ||
16042                                $window.webkitRequestAnimationFrame;
16043
16044    var cancelAnimationFrame = $window.cancelAnimationFrame ||
16045                               $window.webkitCancelAnimationFrame ||
16046                               $window.webkitCancelRequestAnimationFrame;
16047
16048    var rafSupported = !!requestAnimationFrame;
16049    var raf = rafSupported
16050      ? function(fn) {
16051          var id = requestAnimationFrame(fn);
16052          return function() {
16053            cancelAnimationFrame(id);
16054          };
16055        }
16056      : function(fn) {
16057          var timer = $timeout(fn, 16.66, false); // 1000 / 60 = 16.666
16058          return function() {
16059            $timeout.cancel(timer);
16060          };
16061        };
16062
16063    raf.supported = rafSupported;
16064
16065    return raf;
16066  }];
16067}
16068
16069/**
16070 * DESIGN NOTES
16071 *
16072 * The design decisions behind the scope are heavily favored for speed and memory consumption.
16073 *
16074 * The typical use of scope is to watch the expressions, which most of the time return the same
16075 * value as last time so we optimize the operation.
16076 *
16077 * Closures construction is expensive in terms of speed as well as memory:
16078 *   - No closures, instead use prototypical inheritance for API
16079 *   - Internal state needs to be stored on scope directly, which means that private state is
16080 *     exposed as $$____ properties
16081 *
16082 * Loop operations are optimized by using while(count--) { ... }
16083 *   - This means that in order to keep the same order of execution as addition we have to add
16084 *     items to the array at the beginning (unshift) instead of at the end (push)
16085 *
16086 * Child scopes are created and removed often
16087 *   - Using an array would be slow since inserts in the middle are expensive; so we use linked lists
16088 *
16089 * There are fewer watches than observers. This is why you don't want the observer to be implemented
16090 * in the same way as watch. Watch requires return of the initialization function which is expensive
16091 * to construct.
16092 */
16093
16094
16095/**
16096 * @ngdoc provider
16097 * @name $rootScopeProvider
16098 * @description
16099 *
16100 * Provider for the $rootScope service.
16101 */
16102
16103/**
16104 * @ngdoc method
16105 * @name $rootScopeProvider#digestTtl
16106 * @description
16107 *
16108 * Sets the number of `$digest` iterations the scope should attempt to execute before giving up and
16109 * assuming that the model is unstable.
16110 *
16111 * The current default is 10 iterations.
16112 *
16113 * In complex applications it's possible that the dependencies between `$watch`s will result in
16114 * several digest iterations. However if an application needs more than the default 10 digest
16115 * iterations for its model to stabilize then you should investigate what is causing the model to
16116 * continuously change during the digest.
16117 *
16118 * Increasing the TTL could have performance implications, so you should not change it without
16119 * proper justification.
16120 *
16121 * @param {number} limit The number of digest iterations.
16122 */
16123
16124
16125/**
16126 * @ngdoc service
16127 * @name $rootScope
16128 * @description
16129 *
16130 * Every application has a single root {@link ng.$rootScope.Scope scope}.
16131 * All other scopes are descendant scopes of the root scope. Scopes provide separation
16132 * between the model and the view, via a mechanism for watching the model for changes.
16133 * They also provide event emission/broadcast and subscription facility. See the
16134 * {@link guide/scope developer guide on scopes}.
16135 */
16136function $RootScopeProvider() {
16137  var TTL = 10;
16138  var $rootScopeMinErr = minErr('$rootScope');
16139  var lastDirtyWatch = null;
16140  var applyAsyncId = null;
16141
16142  this.digestTtl = function(value) {
16143    if (arguments.length) {
16144      TTL = value;
16145    }
16146    return TTL;
16147  };
16148
16149  function createChildScopeClass(parent) {
16150    function ChildScope() {
16151      this.$$watchers = this.$$nextSibling =
16152          this.$$childHead = this.$$childTail = null;
16153      this.$$listeners = {};
16154      this.$$listenerCount = {};
16155      this.$$watchersCount = 0;
16156      this.$id = nextUid();
16157      this.$$ChildScope = null;
16158    }
16159    ChildScope.prototype = parent;
16160    return ChildScope;
16161  }
16162
16163  this.$get = ['$exceptionHandler', '$parse', '$browser',
16164      function($exceptionHandler, $parse, $browser) {
16165
16166    function destroyChildScope($event) {
16167        $event.currentScope.$$destroyed = true;
16168    }
16169
16170    function cleanUpScope($scope) {
16171
16172      if (msie === 9) {
16173        // There is a memory leak in IE9 if all child scopes are not disconnected
16174        // completely when a scope is destroyed. So this code will recurse up through
16175        // all this scopes children
16176        //
16177        // See issue https://github.com/angular/angular.js/issues/10706
16178        $scope.$$childHead && cleanUpScope($scope.$$childHead);
16179        $scope.$$nextSibling && cleanUpScope($scope.$$nextSibling);
16180      }
16181
16182      // The code below works around IE9 and V8's memory leaks
16183      //
16184      // See:
16185      // - https://code.google.com/p/v8/issues/detail?id=2073#c26
16186      // - https://github.com/angular/angular.js/issues/6794#issuecomment-38648909
16187      // - https://github.com/angular/angular.js/issues/1313#issuecomment-10378451
16188
16189      $scope.$parent = $scope.$$nextSibling = $scope.$$prevSibling = $scope.$$childHead =
16190          $scope.$$childTail = $scope.$root = $scope.$$watchers = null;
16191    }
16192
16193    /**
16194     * @ngdoc type
16195     * @name $rootScope.Scope
16196     *
16197     * @description
16198     * A root scope can be retrieved using the {@link ng.$rootScope $rootScope} key from the
16199     * {@link auto.$injector $injector}. Child scopes are created using the
16200     * {@link ng.$rootScope.Scope#$new $new()} method. (Most scopes are created automatically when
16201     * compiled HTML template is executed.) See also the {@link guide/scope Scopes guide} for
16202     * an in-depth introduction and usage examples.
16203     *
16204     *
16205     * # Inheritance
16206     * A scope can inherit from a parent scope, as in this example:
16207     * ```js
16208         var parent = $rootScope;
16209         var child = parent.$new();
16210
16211         parent.salutation = "Hello";
16212         expect(child.salutation).toEqual('Hello');
16213
16214         child.salutation = "Welcome";
16215         expect(child.salutation).toEqual('Welcome');
16216         expect(parent.salutation).toEqual('Hello');
16217     * ```
16218     *
16219     * When interacting with `Scope` in tests, additional helper methods are available on the
16220     * instances of `Scope` type. See {@link ngMock.$rootScope.Scope ngMock Scope} for additional
16221     * details.
16222     *
16223     *
16224     * @param {Object.<string, function()>=} providers Map of service factory which need to be
16225     *                                       provided for the current scope. Defaults to {@link ng}.
16226     * @param {Object.<string, *>=} instanceCache Provides pre-instantiated services which should
16227     *                              append/override services provided by `providers`. This is handy
16228     *                              when unit-testing and having the need to override a default
16229     *                              service.
16230     * @returns {Object} Newly created scope.
16231     *
16232     */
16233    function Scope() {
16234      this.$id = nextUid();
16235      this.$$phase = this.$parent = this.$$watchers =
16236                     this.$$nextSibling = this.$$prevSibling =
16237                     this.$$childHead = this.$$childTail = null;
16238      this.$root = this;
16239      this.$$destroyed = false;
16240      this.$$listeners = {};
16241      this.$$listenerCount = {};
16242      this.$$watchersCount = 0;
16243      this.$$isolateBindings = null;
16244    }
16245
16246    /**
16247     * @ngdoc property
16248     * @name $rootScope.Scope#$id
16249     *
16250     * @description
16251     * Unique scope ID (monotonically increasing) useful for debugging.
16252     */
16253
16254     /**
16255      * @ngdoc property
16256      * @name $rootScope.Scope#$parent
16257      *
16258      * @description
16259      * Reference to the parent scope.
16260      */
16261
16262      /**
16263       * @ngdoc property
16264       * @name $rootScope.Scope#$root
16265       *
16266       * @description
16267       * Reference to the root scope.
16268       */
16269
16270    Scope.prototype = {
16271      constructor: Scope,
16272      /**
16273       * @ngdoc method
16274       * @name $rootScope.Scope#$new
16275       * @kind function
16276       *
16277       * @description
16278       * Creates a new child {@link ng.$rootScope.Scope scope}.
16279       *
16280       * The parent scope will propagate the {@link ng.$rootScope.Scope#$digest $digest()} event.
16281       * The scope can be removed from the scope hierarchy using {@link ng.$rootScope.Scope#$destroy $destroy()}.
16282       *
16283       * {@link ng.$rootScope.Scope#$destroy $destroy()} must be called on a scope when it is
16284       * desired for the scope and its child scopes to be permanently detached from the parent and
16285       * thus stop participating in model change detection and listener notification by invoking.
16286       *
16287       * @param {boolean} isolate If true, then the scope does not prototypically inherit from the
16288       *         parent scope. The scope is isolated, as it can not see parent scope properties.
16289       *         When creating widgets, it is useful for the widget to not accidentally read parent
16290       *         state.
16291       *
16292       * @param {Scope} [parent=this] The {@link ng.$rootScope.Scope `Scope`} that will be the `$parent`
16293       *                              of the newly created scope. Defaults to `this` scope if not provided.
16294       *                              This is used when creating a transclude scope to correctly place it
16295       *                              in the scope hierarchy while maintaining the correct prototypical
16296       *                              inheritance.
16297       *
16298       * @returns {Object} The newly created child scope.
16299       *
16300       */
16301      $new: function(isolate, parent) {
16302        var child;
16303
16304        parent = parent || this;
16305
16306        if (isolate) {
16307          child = new Scope();
16308          child.$root = this.$root;
16309        } else {
16310          // Only create a child scope class if somebody asks for one,
16311          // but cache it to allow the VM to optimize lookups.
16312          if (!this.$$ChildScope) {
16313            this.$$ChildScope = createChildScopeClass(this);
16314          }
16315          child = new this.$$ChildScope();
16316        }
16317        child.$parent = parent;
16318        child.$$prevSibling = parent.$$childTail;
16319        if (parent.$$childHead) {
16320          parent.$$childTail.$$nextSibling = child;
16321          parent.$$childTail = child;
16322        } else {
16323          parent.$$childHead = parent.$$childTail = child;
16324        }
16325
16326        // When the new scope is not isolated or we inherit from `this`, and
16327        // the parent scope is destroyed, the property `$$destroyed` is inherited
16328        // prototypically. In all other cases, this property needs to be set
16329        // when the parent scope is destroyed.
16330        // The listener needs to be added after the parent is set
16331        if (isolate || parent != this) child.$on('$destroy', destroyChildScope);
16332
16333        return child;
16334      },
16335
16336      /**
16337       * @ngdoc method
16338       * @name $rootScope.Scope#$watch
16339       * @kind function
16340       *
16341       * @description
16342       * Registers a `listener` callback to be executed whenever the `watchExpression` changes.
16343       *
16344       * - The `watchExpression` is called on every call to {@link ng.$rootScope.Scope#$digest
16345       *   $digest()} and should return the value that will be watched. (`watchExpression` should not change
16346       *   its value when executed multiple times with the same input because it may be executed multiple
16347       *   times by {@link ng.$rootScope.Scope#$digest $digest()}. That is, `watchExpression` should be
16348       *   [idempotent](http://en.wikipedia.org/wiki/Idempotence).
16349       * - The `listener` is called only when the value from the current `watchExpression` and the
16350       *   previous call to `watchExpression` are not equal (with the exception of the initial run,
16351       *   see below). Inequality is determined according to reference inequality,
16352       *   [strict comparison](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Comparison_Operators)
16353       *    via the `!==` Javascript operator, unless `objectEquality == true`
16354       *   (see next point)
16355       * - When `objectEquality == true`, inequality of the `watchExpression` is determined
16356       *   according to the {@link angular.equals} function. To save the value of the object for
16357       *   later comparison, the {@link angular.copy} function is used. This therefore means that
16358       *   watching complex objects will have adverse memory and performance implications.
16359       * - The watch `listener` may change the model, which may trigger other `listener`s to fire.
16360       *   This is achieved by rerunning the watchers until no changes are detected. The rerun
16361       *   iteration limit is 10 to prevent an infinite loop deadlock.
16362       *
16363       *
16364       * If you want to be notified whenever {@link ng.$rootScope.Scope#$digest $digest} is called,
16365       * you can register a `watchExpression` function with no `listener`. (Be prepared for
16366       * multiple calls to your `watchExpression` because it will execute multiple times in a
16367       * single {@link ng.$rootScope.Scope#$digest $digest} cycle if a change is detected.)
16368       *
16369       * After a watcher is registered with the scope, the `listener` fn is called asynchronously
16370       * (via {@link ng.$rootScope.Scope#$evalAsync $evalAsync}) to initialize the
16371       * watcher. In rare cases, this is undesirable because the listener is called when the result
16372       * of `watchExpression` didn't change. To detect this scenario within the `listener` fn, you
16373       * can compare the `newVal` and `oldVal`. If these two values are identical (`===`) then the
16374       * listener was called due to initialization.
16375       *
16376       *
16377       *
16378       * # Example
16379       * ```js
16380           // let's assume that scope was dependency injected as the $rootScope
16381           var scope = $rootScope;
16382           scope.name = 'misko';
16383           scope.counter = 0;
16384
16385           expect(scope.counter).toEqual(0);
16386           scope.$watch('name', function(newValue, oldValue) {
16387             scope.counter = scope.counter + 1;
16388           });
16389           expect(scope.counter).toEqual(0);
16390
16391           scope.$digest();
16392           // the listener is always called during the first $digest loop after it was registered
16393           expect(scope.counter).toEqual(1);
16394
16395           scope.$digest();
16396           // but now it will not be called unless the value changes
16397           expect(scope.counter).toEqual(1);
16398
16399           scope.name = 'adam';
16400           scope.$digest();
16401           expect(scope.counter).toEqual(2);
16402
16403
16404
16405           // Using a function as a watchExpression
16406           var food;
16407           scope.foodCounter = 0;
16408           expect(scope.foodCounter).toEqual(0);
16409           scope.$watch(
16410             // This function returns the value being watched. It is called for each turn of the $digest loop
16411             function() { return food; },
16412             // This is the change listener, called when the value returned from the above function changes
16413             function(newValue, oldValue) {
16414               if ( newValue !== oldValue ) {
16415                 // Only increment the counter if the value changed
16416                 scope.foodCounter = scope.foodCounter + 1;
16417               }
16418             }
16419           );
16420           // No digest has been run so the counter will be zero
16421           expect(scope.foodCounter).toEqual(0);
16422
16423           // Run the digest but since food has not changed count will still be zero
16424           scope.$digest();
16425           expect(scope.foodCounter).toEqual(0);
16426
16427           // Update food and run digest.  Now the counter will increment
16428           food = 'cheeseburger';
16429           scope.$digest();
16430           expect(scope.foodCounter).toEqual(1);
16431
16432       * ```
16433       *
16434       *
16435       *
16436       * @param {(function()|string)} watchExpression Expression that is evaluated on each
16437       *    {@link ng.$rootScope.Scope#$digest $digest} cycle. A change in the return value triggers
16438       *    a call to the `listener`.
16439       *
16440       *    - `string`: Evaluated as {@link guide/expression expression}
16441       *    - `function(scope)`: called with current `scope` as a parameter.
16442       * @param {function(newVal, oldVal, scope)} listener Callback called whenever the value
16443       *    of `watchExpression` changes.
16444       *
16445       *    - `newVal` contains the current value of the `watchExpression`
16446       *    - `oldVal` contains the previous value of the `watchExpression`
16447       *    - `scope` refers to the current scope
16448       * @param {boolean=} [objectEquality=false] Compare for object equality using {@link angular.equals} instead of
16449       *     comparing for reference equality.
16450       * @returns {function()} Returns a deregistration function for this listener.
16451       */
16452      $watch: function(watchExp, listener, objectEquality, prettyPrintExpression) {
16453        var get = $parse(watchExp);
16454
16455        if (get.$$watchDelegate) {
16456          return get.$$watchDelegate(this, listener, objectEquality, get, watchExp);
16457        }
16458        var scope = this,
16459            array = scope.$$watchers,
16460            watcher = {
16461              fn: listener,
16462              last: initWatchVal,
16463              get: get,
16464              exp: prettyPrintExpression || watchExp,
16465              eq: !!objectEquality
16466            };
16467
16468        lastDirtyWatch = null;
16469
16470        if (!isFunction(listener)) {
16471          watcher.fn = noop;
16472        }
16473
16474        if (!array) {
16475          array = scope.$$watchers = [];
16476        }
16477        // we use unshift since we use a while loop in $digest for speed.
16478        // the while loop reads in reverse order.
16479        array.unshift(watcher);
16480        incrementWatchersCount(this, 1);
16481
16482        return function deregisterWatch() {
16483          if (arrayRemove(array, watcher) >= 0) {
16484            incrementWatchersCount(scope, -1);
16485          }
16486          lastDirtyWatch = null;
16487        };
16488      },
16489
16490      /**
16491       * @ngdoc method
16492       * @name $rootScope.Scope#$watchGroup
16493       * @kind function
16494       *
16495       * @description
16496       * A variant of {@link ng.$rootScope.Scope#$watch $watch()} where it watches an array of `watchExpressions`.
16497       * If any one expression in the collection changes the `listener` is executed.
16498       *
16499       * - The items in the `watchExpressions` array are observed via standard $watch operation and are examined on every
16500       *   call to $digest() to see if any items changes.
16501       * - The `listener` is called whenever any expression in the `watchExpressions` array changes.
16502       *
16503       * @param {Array.<string|Function(scope)>} watchExpressions Array of expressions that will be individually
16504       * watched using {@link ng.$rootScope.Scope#$watch $watch()}
16505       *
16506       * @param {function(newValues, oldValues, scope)} listener Callback called whenever the return value of any
16507       *    expression in `watchExpressions` changes
16508       *    The `newValues` array contains the current values of the `watchExpressions`, with the indexes matching
16509       *    those of `watchExpression`
16510       *    and the `oldValues` array contains the previous values of the `watchExpressions`, with the indexes matching
16511       *    those of `watchExpression`
16512       *    The `scope` refers to the current scope.
16513       * @returns {function()} Returns a de-registration function for all listeners.
16514       */
16515      $watchGroup: function(watchExpressions, listener) {
16516        var oldValues = new Array(watchExpressions.length);
16517        var newValues = new Array(watchExpressions.length);
16518        var deregisterFns = [];
16519        var self = this;
16520        var changeReactionScheduled = false;
16521        var firstRun = true;
16522
16523        if (!watchExpressions.length) {
16524          // No expressions means we call the listener ASAP
16525          var shouldCall = true;
16526          self.$evalAsync(function() {
16527            if (shouldCall) listener(newValues, newValues, self);
16528          });
16529          return function deregisterWatchGroup() {
16530            shouldCall = false;
16531          };
16532        }
16533
16534        if (watchExpressions.length === 1) {
16535          // Special case size of one
16536          return this.$watch(watchExpressions[0], function watchGroupAction(value, oldValue, scope) {
16537            newValues[0] = value;
16538            oldValues[0] = oldValue;
16539            listener(newValues, (value === oldValue) ? newValues : oldValues, scope);
16540          });
16541        }
16542
16543        forEach(watchExpressions, function(expr, i) {
16544          var unwatchFn = self.$watch(expr, function watchGroupSubAction(value, oldValue) {
16545            newValues[i] = value;
16546            oldValues[i] = oldValue;
16547            if (!changeReactionScheduled) {
16548              changeReactionScheduled = true;
16549              self.$evalAsync(watchGroupAction);
16550            }
16551          });
16552          deregisterFns.push(unwatchFn);
16553        });
16554
16555        function watchGroupAction() {
16556          changeReactionScheduled = false;
16557
16558          if (firstRun) {
16559            firstRun = false;
16560            listener(newValues, newValues, self);
16561          } else {
16562            listener(newValues, oldValues, self);
16563          }
16564        }
16565
16566        return function deregisterWatchGroup() {
16567          while (deregisterFns.length) {
16568            deregisterFns.shift()();
16569          }
16570        };
16571      },
16572
16573
16574      /**
16575       * @ngdoc method
16576       * @name $rootScope.Scope#$watchCollection
16577       * @kind function
16578       *
16579       * @description
16580       * Shallow watches the properties of an object and fires whenever any of the properties change
16581       * (for arrays, this implies watching the array items; for object maps, this implies watching
16582       * the properties). If a change is detected, the `listener` callback is fired.
16583       *
16584       * - The `obj` collection is observed via standard $watch operation and is examined on every
16585       *   call to $digest() to see if any items have been added, removed, or moved.
16586       * - The `listener` is called whenever anything within the `obj` has changed. Examples include
16587       *   adding, removing, and moving items belonging to an object or array.
16588       *
16589       *
16590       * # Example
16591       * ```js
16592          $scope.names = ['igor', 'matias', 'misko', 'james'];
16593          $scope.dataCount = 4;
16594
16595          $scope.$watchCollection('names', function(newNames, oldNames) {
16596            $scope.dataCount = newNames.length;
16597          });
16598
16599          expect($scope.dataCount).toEqual(4);
16600          $scope.$digest();
16601
16602          //still at 4 ... no changes
16603          expect($scope.dataCount).toEqual(4);
16604
16605          $scope.names.pop();
16606          $scope.$digest();
16607
16608          //now there's been a change
16609          expect($scope.dataCount).toEqual(3);
16610       * ```
16611       *
16612       *
16613       * @param {string|function(scope)} obj Evaluated as {@link guide/expression expression}. The
16614       *    expression value should evaluate to an object or an array which is observed on each
16615       *    {@link ng.$rootScope.Scope#$digest $digest} cycle. Any shallow change within the
16616       *    collection will trigger a call to the `listener`.
16617       *
16618       * @param {function(newCollection, oldCollection, scope)} listener a callback function called
16619       *    when a change is detected.
16620       *    - The `newCollection` object is the newly modified data obtained from the `obj` expression
16621       *    - The `oldCollection` object is a copy of the former collection data.
16622       *      Due to performance considerations, the`oldCollection` value is computed only if the
16623       *      `listener` function declares two or more arguments.
16624       *    - The `scope` argument refers to the current scope.
16625       *
16626       * @returns {function()} Returns a de-registration function for this listener. When the
16627       *    de-registration function is executed, the internal watch operation is terminated.
16628       */
16629      $watchCollection: function(obj, listener) {
16630        $watchCollectionInterceptor.$stateful = true;
16631
16632        var self = this;
16633        // the current value, updated on each dirty-check run
16634        var newValue;
16635        // a shallow copy of the newValue from the last dirty-check run,
16636        // updated to match newValue during dirty-check run
16637        var oldValue;
16638        // a shallow copy of the newValue from when the last change happened
16639        var veryOldValue;
16640        // only track veryOldValue if the listener is asking for it
16641        var trackVeryOldValue = (listener.length > 1);
16642        var changeDetected = 0;
16643        var changeDetector = $parse(obj, $watchCollectionInterceptor);
16644        var internalArray = [];
16645        var internalObject = {};
16646        var initRun = true;
16647        var oldLength = 0;
16648
16649        function $watchCollectionInterceptor(_value) {
16650          newValue = _value;
16651          var newLength, key, bothNaN, newItem, oldItem;
16652
16653          // If the new value is undefined, then return undefined as the watch may be a one-time watch
16654          if (isUndefined(newValue)) return;
16655
16656          if (!isObject(newValue)) { // if primitive
16657            if (oldValue !== newValue) {
16658              oldValue = newValue;
16659              changeDetected++;
16660            }
16661          } else if (isArrayLike(newValue)) {
16662            if (oldValue !== internalArray) {
16663              // we are transitioning from something which was not an array into array.
16664              oldValue = internalArray;
16665              oldLength = oldValue.length = 0;
16666              changeDetected++;
16667            }
16668
16669            newLength = newValue.length;
16670
16671            if (oldLength !== newLength) {
16672              // if lengths do not match we need to trigger change notification
16673              changeDetected++;
16674              oldValue.length = oldLength = newLength;
16675            }
16676            // copy the items to oldValue and look for changes.
16677            for (var i = 0; i < newLength; i++) {
16678              oldItem = oldValue[i];
16679              newItem = newValue[i];
16680
16681              bothNaN = (oldItem !== oldItem) && (newItem !== newItem);
16682              if (!bothNaN && (oldItem !== newItem)) {
16683                changeDetected++;
16684                oldValue[i] = newItem;
16685              }
16686            }
16687          } else {
16688            if (oldValue !== internalObject) {
16689              // we are transitioning from something which was not an object into object.
16690              oldValue = internalObject = {};
16691              oldLength = 0;
16692              changeDetected++;
16693            }
16694            // copy the items to oldValue and look for changes.
16695            newLength = 0;
16696            for (key in newValue) {
16697              if (hasOwnProperty.call(newValue, key)) {
16698                newLength++;
16699                newItem = newValue[key];
16700                oldItem = oldValue[key];
16701
16702                if (key in oldValue) {
16703                  bothNaN = (oldItem !== oldItem) && (newItem !== newItem);
16704                  if (!bothNaN && (oldItem !== newItem)) {
16705                    changeDetected++;
16706                    oldValue[key] = newItem;
16707                  }
16708                } else {
16709                  oldLength++;
16710                  oldValue[key] = newItem;
16711                  changeDetected++;
16712                }
16713              }
16714            }
16715            if (oldLength > newLength) {
16716              // we used to have more keys, need to find them and destroy them.
16717              changeDetected++;
16718              for (key in oldValue) {
16719                if (!hasOwnProperty.call(newValue, key)) {
16720                  oldLength--;
16721                  delete oldValue[key];
16722                }
16723              }
16724            }
16725          }
16726          return changeDetected;
16727        }
16728
16729        function $watchCollectionAction() {
16730          if (initRun) {
16731            initRun = false;
16732            listener(newValue, newValue, self);
16733          } else {
16734            listener(newValue, veryOldValue, self);
16735          }
16736
16737          // make a copy for the next time a collection is changed
16738          if (trackVeryOldValue) {
16739            if (!isObject(newValue)) {
16740              //primitive
16741              veryOldValue = newValue;
16742            } else if (isArrayLike(newValue)) {
16743              veryOldValue = new Array(newValue.length);
16744              for (var i = 0; i < newValue.length; i++) {
16745                veryOldValue[i] = newValue[i];
16746              }
16747            } else { // if object
16748              veryOldValue = {};
16749              for (var key in newValue) {
16750                if (hasOwnProperty.call(newValue, key)) {
16751                  veryOldValue[key] = newValue[key];
16752                }
16753              }
16754            }
16755          }
16756        }
16757
16758        return this.$watch(changeDetector, $watchCollectionAction);
16759      },
16760
16761      /**
16762       * @ngdoc method
16763       * @name $rootScope.Scope#$digest
16764       * @kind function
16765       *
16766       * @description
16767       * Processes all of the {@link ng.$rootScope.Scope#$watch watchers} of the current scope and
16768       * its children. Because a {@link ng.$rootScope.Scope#$watch watcher}'s listener can change
16769       * the model, the `$digest()` keeps calling the {@link ng.$rootScope.Scope#$watch watchers}
16770       * until no more listeners are firing. This means that it is possible to get into an infinite
16771       * loop. This function will throw `'Maximum iteration limit exceeded.'` if the number of
16772       * iterations exceeds 10.
16773       *
16774       * Usually, you don't call `$digest()` directly in
16775       * {@link ng.directive:ngController controllers} or in
16776       * {@link ng.$compileProvider#directive directives}.
16777       * Instead, you should call {@link ng.$rootScope.Scope#$apply $apply()} (typically from within
16778       * a {@link ng.$compileProvider#directive directive}), which will force a `$digest()`.
16779       *
16780       * If you want to be notified whenever `$digest()` is called,
16781       * you can register a `watchExpression` function with
16782       * {@link ng.$rootScope.Scope#$watch $watch()} with no `listener`.
16783       *
16784       * In unit tests, you may need to call `$digest()` to simulate the scope life cycle.
16785       *
16786       * # Example
16787       * ```js
16788           var scope = ...;
16789           scope.name = 'misko';
16790           scope.counter = 0;
16791
16792           expect(scope.counter).toEqual(0);
16793           scope.$watch('name', function(newValue, oldValue) {
16794             scope.counter = scope.counter + 1;
16795           });
16796           expect(scope.counter).toEqual(0);
16797
16798           scope.$digest();
16799           // the listener is always called during the first $digest loop after it was registered
16800           expect(scope.counter).toEqual(1);
16801
16802           scope.$digest();
16803           // but now it will not be called unless the value changes
16804           expect(scope.counter).toEqual(1);
16805
16806           scope.name = 'adam';
16807           scope.$digest();
16808           expect(scope.counter).toEqual(2);
16809       * ```
16810       *
16811       */
16812      $digest: function() {
16813        var watch, value, last, fn, get,
16814            watchers,
16815            length,
16816            dirty, ttl = TTL,
16817            next, current, target = this,
16818            watchLog = [],
16819            logIdx, asyncTask;
16820
16821        beginPhase('$digest');
16822        // Check for changes to browser url that happened in sync before the call to $digest
16823        $browser.$$checkUrlChange();
16824
16825        if (this === $rootScope && applyAsyncId !== null) {
16826          // If this is the root scope, and $applyAsync has scheduled a deferred $apply(), then
16827          // cancel the scheduled $apply and flush the queue of expressions to be evaluated.
16828          $browser.defer.cancel(applyAsyncId);
16829          flushApplyAsync();
16830        }
16831
16832        lastDirtyWatch = null;
16833
16834        do { // "while dirty" loop
16835          dirty = false;
16836          current = target;
16837
16838          while (asyncQueue.length) {
16839            try {
16840              asyncTask = asyncQueue.shift();
16841              asyncTask.scope.$eval(asyncTask.expression, asyncTask.locals);
16842            } catch (e) {
16843              $exceptionHandler(e);
16844            }
16845            lastDirtyWatch = null;
16846          }
16847
16848          traverseScopesLoop:
16849          do { // "traverse the scopes" loop
16850            if ((watchers = current.$$watchers)) {
16851              // process our watches
16852              length = watchers.length;
16853              while (length--) {
16854                try {
16855                  watch = watchers[length];
16856                  // Most common watches are on primitives, in which case we can short
16857                  // circuit it with === operator, only when === fails do we use .equals
16858                  if (watch) {
16859                    get = watch.get;
16860                    if ((value = get(current)) !== (last = watch.last) &&
16861                        !(watch.eq
16862                            ? equals(value, last)
16863                            : (typeof value === 'number' && typeof last === 'number'
16864                               && isNaN(value) && isNaN(last)))) {
16865                      dirty = true;
16866                      lastDirtyWatch = watch;
16867                      watch.last = watch.eq ? copy(value, null) : value;
16868                      fn = watch.fn;
16869                      fn(value, ((last === initWatchVal) ? value : last), current);
16870                      if (ttl < 5) {
16871                        logIdx = 4 - ttl;
16872                        if (!watchLog[logIdx]) watchLog[logIdx] = [];
16873                        watchLog[logIdx].push({
16874                          msg: isFunction(watch.exp) ? 'fn: ' + (watch.exp.name || watch.exp.toString()) : watch.exp,
16875                          newVal: value,
16876                          oldVal: last
16877                        });
16878                      }
16879                    } else if (watch === lastDirtyWatch) {
16880                      // If the most recently dirty watcher is now clean, short circuit since the remaining watchers
16881                      // have already been tested.
16882                      dirty = false;
16883                      break traverseScopesLoop;
16884                    }
16885                  }
16886                } catch (e) {
16887                  $exceptionHandler(e);
16888                }
16889              }
16890            }
16891
16892            // Insanity Warning: scope depth-first traversal
16893            // yes, this code is a bit crazy, but it works and we have tests to prove it!
16894            // this piece should be kept in sync with the traversal in $broadcast
16895            if (!(next = ((current.$$watchersCount && current.$$childHead) ||
16896                (current !== target && current.$$nextSibling)))) {
16897              while (current !== target && !(next = current.$$nextSibling)) {
16898                current = current.$parent;
16899              }
16900            }
16901          } while ((current = next));
16902
16903          // `break traverseScopesLoop;` takes us to here
16904
16905          if ((dirty || asyncQueue.length) && !(ttl--)) {
16906            clearPhase();
16907            throw $rootScopeMinErr('infdig',
16908                '{0} $digest() iterations reached. Aborting!\n' +
16909                'Watchers fired in the last 5 iterations: {1}',
16910                TTL, watchLog);
16911          }
16912
16913        } while (dirty || asyncQueue.length);
16914
16915        clearPhase();
16916
16917        while (postDigestQueue.length) {
16918          try {
16919            postDigestQueue.shift()();
16920          } catch (e) {
16921            $exceptionHandler(e);
16922          }
16923        }
16924      },
16925
16926
16927      /**
16928       * @ngdoc event
16929       * @name $rootScope.Scope#$destroy
16930       * @eventType broadcast on scope being destroyed
16931       *
16932       * @description
16933       * Broadcasted when a scope and its children are being destroyed.
16934       *
16935       * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to
16936       * clean up DOM bindings before an element is removed from the DOM.
16937       */
16938
16939      /**
16940       * @ngdoc method
16941       * @name $rootScope.Scope#$destroy
16942       * @kind function
16943       *
16944       * @description
16945       * Removes the current scope (and all of its children) from the parent scope. Removal implies
16946       * that calls to {@link ng.$rootScope.Scope#$digest $digest()} will no longer
16947       * propagate to the current scope and its children. Removal also implies that the current
16948       * scope is eligible for garbage collection.
16949       *
16950       * The `$destroy()` is usually used by directives such as
16951       * {@link ng.directive:ngRepeat ngRepeat} for managing the
16952       * unrolling of the loop.
16953       *
16954       * Just before a scope is destroyed, a `$destroy` event is broadcasted on this scope.
16955       * Application code can register a `$destroy` event handler that will give it a chance to
16956       * perform any necessary cleanup.
16957       *
16958       * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to
16959       * clean up DOM bindings before an element is removed from the DOM.
16960       */
16961      $destroy: function() {
16962        // We can't destroy a scope that has been already destroyed.
16963        if (this.$$destroyed) return;
16964        var parent = this.$parent;
16965
16966        this.$broadcast('$destroy');
16967        this.$$destroyed = true;
16968
16969        if (this === $rootScope) {
16970          //Remove handlers attached to window when $rootScope is removed
16971          $browser.$$applicationDestroyed();
16972        }
16973
16974        incrementWatchersCount(this, -this.$$watchersCount);
16975        for (var eventName in this.$$listenerCount) {
16976          decrementListenerCount(this, this.$$listenerCount[eventName], eventName);
16977        }
16978
16979        // sever all the references to parent scopes (after this cleanup, the current scope should
16980        // not be retained by any of our references and should be eligible for garbage collection)
16981        if (parent && parent.$$childHead == this) parent.$$childHead = this.$$nextSibling;
16982        if (parent && parent.$$childTail == this) parent.$$childTail = this.$$prevSibling;
16983        if (this.$$prevSibling) this.$$prevSibling.$$nextSibling = this.$$nextSibling;
16984        if (this.$$nextSibling) this.$$nextSibling.$$prevSibling = this.$$prevSibling;
16985
16986        // Disable listeners, watchers and apply/digest methods
16987        this.$destroy = this.$digest = this.$apply = this.$evalAsync = this.$applyAsync = noop;
16988        this.$on = this.$watch = this.$watchGroup = function() { return noop; };
16989        this.$$listeners = {};
16990
16991        // Disconnect the next sibling to prevent `cleanUpScope` destroying those too
16992        this.$$nextSibling = null;
16993        cleanUpScope(this);
16994      },
16995
16996      /**
16997       * @ngdoc method
16998       * @name $rootScope.Scope#$eval
16999       * @kind function
17000       *
17001       * @description
17002       * Executes the `expression` on the current scope and returns the result. Any exceptions in
17003       * the expression are propagated (uncaught). This is useful when evaluating Angular
17004       * expressions.
17005       *
17006       * # Example
17007       * ```js
17008           var scope = ng.$rootScope.Scope();
17009           scope.a = 1;
17010           scope.b = 2;
17011
17012           expect(scope.$eval('a+b')).toEqual(3);
17013           expect(scope.$eval(function(scope){ return scope.a + scope.b; })).toEqual(3);
17014       * ```
17015       *
17016       * @param {(string|function())=} expression An angular expression to be executed.
17017       *
17018       *    - `string`: execute using the rules as defined in  {@link guide/expression expression}.
17019       *    - `function(scope)`: execute the function with the current `scope` parameter.
17020       *
17021       * @param {(object)=} locals Local variables object, useful for overriding values in scope.
17022       * @returns {*} The result of evaluating the expression.
17023       */
17024      $eval: function(expr, locals) {
17025        return $parse(expr)(this, locals);
17026      },
17027
17028      /**
17029       * @ngdoc method
17030       * @name $rootScope.Scope#$evalAsync
17031       * @kind function
17032       *
17033       * @description
17034       * Executes the expression on the current scope at a later point in time.
17035       *
17036       * The `$evalAsync` makes no guarantees as to when the `expression` will be executed, only
17037       * that:
17038       *
17039       *   - it will execute after the function that scheduled the evaluation (preferably before DOM
17040       *     rendering).
17041       *   - at least one {@link ng.$rootScope.Scope#$digest $digest cycle} will be performed after
17042       *     `expression` execution.
17043       *
17044       * Any exceptions from the execution of the expression are forwarded to the
17045       * {@link ng.$exceptionHandler $exceptionHandler} service.
17046       *
17047       * __Note:__ if this function is called outside of a `$digest` cycle, a new `$digest` cycle
17048       * will be scheduled. However, it is encouraged to always call code that changes the model
17049       * from within an `$apply` call. That includes code evaluated via `$evalAsync`.
17050       *
17051       * @param {(string|function())=} expression An angular expression to be executed.
17052       *
17053       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.
17054       *    - `function(scope)`: execute the function with the current `scope` parameter.
17055       *
17056       * @param {(object)=} locals Local variables object, useful for overriding values in scope.
17057       */
17058      $evalAsync: function(expr, locals) {
17059        // if we are outside of an $digest loop and this is the first time we are scheduling async
17060        // task also schedule async auto-flush
17061        if (!$rootScope.$$phase && !asyncQueue.length) {
17062          $browser.defer(function() {
17063            if (asyncQueue.length) {
17064              $rootScope.$digest();
17065            }
17066          });
17067        }
17068
17069        asyncQueue.push({scope: this, expression: $parse(expr), locals: locals});
17070      },
17071
17072      $$postDigest: function(fn) {
17073        postDigestQueue.push(fn);
17074      },
17075
17076      /**
17077       * @ngdoc method
17078       * @name $rootScope.Scope#$apply
17079       * @kind function
17080       *
17081       * @description
17082       * `$apply()` is used to execute an expression in angular from outside of the angular
17083       * framework. (For example from browser DOM events, setTimeout, XHR or third party libraries).
17084       * Because we are calling into the angular framework we need to perform proper scope life
17085       * cycle of {@link ng.$exceptionHandler exception handling},
17086       * {@link ng.$rootScope.Scope#$digest executing watches}.
17087       *
17088       * ## Life cycle
17089       *
17090       * # Pseudo-Code of `$apply()`
17091       * ```js
17092           function $apply(expr) {
17093             try {
17094               return $eval(expr);
17095             } catch (e) {
17096               $exceptionHandler(e);
17097             } finally {
17098               $root.$digest();
17099             }
17100           }
17101       * ```
17102       *
17103       *
17104       * Scope's `$apply()` method transitions through the following stages:
17105       *
17106       * 1. The {@link guide/expression expression} is executed using the
17107       *    {@link ng.$rootScope.Scope#$eval $eval()} method.
17108       * 2. Any exceptions from the execution of the expression are forwarded to the
17109       *    {@link ng.$exceptionHandler $exceptionHandler} service.
17110       * 3. The {@link ng.$rootScope.Scope#$watch watch} listeners are fired immediately after the
17111       *    expression was executed using the {@link ng.$rootScope.Scope#$digest $digest()} method.
17112       *
17113       *
17114       * @param {(string|function())=} exp An angular expression to be executed.
17115       *
17116       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.
17117       *    - `function(scope)`: execute the function with current `scope` parameter.
17118       *
17119       * @returns {*} The result of evaluating the expression.
17120       */
17121      $apply: function(expr) {
17122        try {
17123          beginPhase('$apply');
17124          try {
17125            return this.$eval(expr);
17126          } finally {
17127            clearPhase();
17128          }
17129        } catch (e) {
17130          $exceptionHandler(e);
17131        } finally {
17132          try {
17133            $rootScope.$digest();
17134          } catch (e) {
17135            $exceptionHandler(e);
17136            throw e;
17137          }
17138        }
17139      },
17140
17141      /**
17142       * @ngdoc method
17143       * @name $rootScope.Scope#$applyAsync
17144       * @kind function
17145       *
17146       * @description
17147       * Schedule the invocation of $apply to occur at a later time. The actual time difference
17148       * varies across browsers, but is typically around ~10 milliseconds.
17149       *
17150       * This can be used to queue up multiple expressions which need to be evaluated in the same
17151       * digest.
17152       *
17153       * @param {(string|function())=} exp An angular expression to be executed.
17154       *
17155       *    - `string`: execute using the rules as defined in {@link guide/expression expression}.
17156       *    - `function(scope)`: execute the function with current `scope` parameter.
17157       */
17158      $applyAsync: function(expr) {
17159        var scope = this;
17160        expr && applyAsyncQueue.push($applyAsyncExpression);
17161        expr = $parse(expr);
17162        scheduleApplyAsync();
17163
17164        function $applyAsyncExpression() {
17165          scope.$eval(expr);
17166        }
17167      },
17168
17169      /**
17170       * @ngdoc method
17171       * @name $rootScope.Scope#$on
17172       * @kind function
17173       *
17174       * @description
17175       * Listens on events of a given type. See {@link ng.$rootScope.Scope#$emit $emit} for
17176       * discussion of event life cycle.
17177       *
17178       * The event listener function format is: `function(event, args...)`. The `event` object
17179       * passed into the listener has the following attributes:
17180       *
17181       *   - `targetScope` - `{Scope}`: the scope on which the event was `$emit`-ed or
17182       *     `$broadcast`-ed.
17183       *   - `currentScope` - `{Scope}`: the scope that is currently handling the event. Once the
17184       *     event propagates through the scope hierarchy, this property is set to null.
17185       *   - `name` - `{string}`: name of the event.
17186       *   - `stopPropagation` - `{function=}`: calling `stopPropagation` function will cancel
17187       *     further event propagation (available only for events that were `$emit`-ed).
17188       *   - `preventDefault` - `{function}`: calling `preventDefault` sets `defaultPrevented` flag
17189       *     to true.
17190       *   - `defaultPrevented` - `{boolean}`: true if `preventDefault` was called.
17191       *
17192       * @param {string} name Event name to listen on.
17193       * @param {function(event, ...args)} listener Function to call when the event is emitted.
17194       * @returns {function()} Returns a deregistration function for this listener.
17195       */
17196      $on: function(name, listener) {
17197        var namedListeners = this.$$listeners[name];
17198        if (!namedListeners) {
17199          this.$$listeners[name] = namedListeners = [];
17200        }
17201        namedListeners.push(listener);
17202
17203        var current = this;
17204        do {
17205          if (!current.$$listenerCount[name]) {
17206            current.$$listenerCount[name] = 0;
17207          }
17208          current.$$listenerCount[name]++;
17209        } while ((current = current.$parent));
17210
17211        var self = this;
17212        return function() {
17213          var indexOfListener = namedListeners.indexOf(listener);
17214          if (indexOfListener !== -1) {
17215            namedListeners[indexOfListener] = null;
17216            decrementListenerCount(self, 1, name);
17217          }
17218        };
17219      },
17220
17221
17222      /**
17223       * @ngdoc method
17224       * @name $rootScope.Scope#$emit
17225       * @kind function
17226       *
17227       * @description
17228       * Dispatches an event `name` upwards through the scope hierarchy notifying the
17229       * registered {@link ng.$rootScope.Scope#$on} listeners.
17230       *
17231       * The event life cycle starts at the scope on which `$emit` was called. All
17232       * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get
17233       * notified. Afterwards, the event traverses upwards toward the root scope and calls all
17234       * registered listeners along the way. The event will stop propagating if one of the listeners
17235       * cancels it.
17236       *
17237       * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed
17238       * onto the {@link ng.$exceptionHandler $exceptionHandler} service.
17239       *
17240       * @param {string} name Event name to emit.
17241       * @param {...*} args Optional one or more arguments which will be passed onto the event listeners.
17242       * @return {Object} Event object (see {@link ng.$rootScope.Scope#$on}).
17243       */
17244      $emit: function(name, args) {
17245        var empty = [],
17246            namedListeners,
17247            scope = this,
17248            stopPropagation = false,
17249            event = {
17250              name: name,
17251              targetScope: scope,
17252              stopPropagation: function() {stopPropagation = true;},
17253              preventDefault: function() {
17254                event.defaultPrevented = true;
17255              },
17256              defaultPrevented: false
17257            },
17258            listenerArgs = concat([event], arguments, 1),
17259            i, length;
17260
17261        do {
17262          namedListeners = scope.$$listeners[name] || empty;
17263          event.currentScope = scope;
17264          for (i = 0, length = namedListeners.length; i < length; i++) {
17265
17266            // if listeners were deregistered, defragment the array
17267            if (!namedListeners[i]) {
17268              namedListeners.splice(i, 1);
17269              i--;
17270              length--;
17271              continue;
17272            }
17273            try {
17274              //allow all listeners attached to the current scope to run
17275              namedListeners[i].apply(null, listenerArgs);
17276            } catch (e) {
17277              $exceptionHandler(e);
17278            }
17279          }
17280          //if any listener on the current scope stops propagation, prevent bubbling
17281          if (stopPropagation) {
17282            event.currentScope = null;
17283            return event;
17284          }
17285          //traverse upwards
17286          scope = scope.$parent;
17287        } while (scope);
17288
17289        event.currentScope = null;
17290
17291        return event;
17292      },
17293
17294
17295      /**
17296       * @ngdoc method
17297       * @name $rootScope.Scope#$broadcast
17298       * @kind function
17299       *
17300       * @description
17301       * Dispatches an event `name` downwards to all child scopes (and their children) notifying the
17302       * registered {@link ng.$rootScope.Scope#$on} listeners.
17303       *
17304       * The event life cycle starts at the scope on which `$broadcast` was called. All
17305       * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get
17306       * notified. Afterwards, the event propagates to all direct and indirect scopes of the current
17307       * scope and calls all registered listeners along the way. The event cannot be canceled.
17308       *
17309       * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed
17310       * onto the {@link ng.$exceptionHandler $exceptionHandler} service.
17311       *
17312       * @param {string} name Event name to broadcast.
17313       * @param {...*} args Optional one or more arguments which will be passed onto the event listeners.
17314       * @return {Object} Event object, see {@link ng.$rootScope.Scope#$on}
17315       */
17316      $broadcast: function(name, args) {
17317        var target = this,
17318            current = target,
17319            next = target,
17320            event = {
17321              name: name,
17322              targetScope: target,
17323              preventDefault: function() {
17324                event.defaultPrevented = true;
17325              },
17326              defaultPrevented: false
17327            };
17328
17329        if (!target.$$listenerCount[name]) return event;
17330
17331        var listenerArgs = concat([event], arguments, 1),
17332            listeners, i, length;
17333
17334        //down while you can, then up and next sibling or up and next sibling until back at root
17335        while ((current = next)) {
17336          event.currentScope = current;
17337          listeners = current.$$listeners[name] || [];
17338          for (i = 0, length = listeners.length; i < length; i++) {
17339            // if listeners were deregistered, defragment the array
17340            if (!listeners[i]) {
17341              listeners.splice(i, 1);
17342              i--;
17343              length--;
17344              continue;
17345            }
17346
17347            try {
17348              listeners[i].apply(null, listenerArgs);
17349            } catch (e) {
17350              $exceptionHandler(e);
17351            }
17352          }
17353
17354          // Insanity Warning: scope depth-first traversal
17355          // yes, this code is a bit crazy, but it works and we have tests to prove it!
17356          // this piece should be kept in sync with the traversal in $digest
17357          // (though it differs due to having the extra check for $$listenerCount)
17358          if (!(next = ((current.$$listenerCount[name] && current.$$childHead) ||
17359              (current !== target && current.$$nextSibling)))) {
17360            while (current !== target && !(next = current.$$nextSibling)) {
17361              current = current.$parent;
17362            }
17363          }
17364        }
17365
17366        event.currentScope = null;
17367        return event;
17368      }
17369    };
17370
17371    var $rootScope = new Scope();
17372
17373    //The internal queues. Expose them on the $rootScope for debugging/testing purposes.
17374    var asyncQueue = $rootScope.$$asyncQueue = [];
17375    var postDigestQueue = $rootScope.$$postDigestQueue = [];
17376    var applyAsyncQueue = $rootScope.$$applyAsyncQueue = [];
17377
17378    return $rootScope;
17379
17380
17381    function beginPhase(phase) {
17382      if ($rootScope.$$phase) {
17383        throw $rootScopeMinErr('inprog', '{0} already in progress', $rootScope.$$phase);
17384      }
17385
17386      $rootScope.$$phase = phase;
17387    }
17388
17389    function clearPhase() {
17390      $rootScope.$$phase = null;
17391    }
17392
17393    function incrementWatchersCount(current, count) {
17394      do {
17395        current.$$watchersCount += count;
17396      } while ((current = current.$parent));
17397    }
17398
17399    function decrementListenerCount(current, count, name) {
17400      do {
17401        current.$$listenerCount[name] -= count;
17402
17403        if (current.$$listenerCount[name] === 0) {
17404          delete current.$$listenerCount[name];
17405        }
17406      } while ((current = current.$parent));
17407    }
17408
17409    /**
17410     * function used as an initial value for watchers.
17411     * because it's unique we can easily tell it apart from other values
17412     */
17413    function initWatchVal() {}
17414
17415    function flushApplyAsync() {
17416      while (applyAsyncQueue.length) {
17417        try {
17418          applyAsyncQueue.shift()();
17419        } catch (e) {
17420          $exceptionHandler(e);
17421        }
17422      }
17423      applyAsyncId = null;
17424    }
17425
17426    function scheduleApplyAsync() {
17427      if (applyAsyncId === null) {
17428        applyAsyncId = $browser.defer(function() {
17429          $rootScope.$apply(flushApplyAsync);
17430        });
17431      }
17432    }
17433  }];
17434}
17435
17436/**
17437 * @ngdoc service
17438 * @name $rootElement
17439 *
17440 * @description
17441 * The root element of Angular application. This is either the element where {@link
17442 * ng.directive:ngApp ngApp} was declared or the element passed into
17443 * {@link angular.bootstrap}. The element represents the root element of application. It is also the
17444 * location where the application's {@link auto.$injector $injector} service gets
17445 * published, and can be retrieved using `$rootElement.injector()`.
17446 */
17447
17448
17449// the implementation is in angular.bootstrap
17450
17451/**
17452 * @description
17453 * Private service to sanitize uris for links and images. Used by $compile and $sanitize.
17454 */
17455function $$SanitizeUriProvider() {
17456  var aHrefSanitizationWhitelist = /^\s*(https?|ftp|mailto|tel|file):/,
17457    imgSrcSanitizationWhitelist = /^\s*((https?|ftp|file|blob):|data:image\/)/;
17458
17459  /**
17460   * @description
17461   * Retrieves or overrides the default regular expression that is used for whitelisting of safe
17462   * urls during a[href] sanitization.
17463   *
17464   * The sanitization is a security measure aimed at prevent XSS attacks via html links.
17465   *
17466   * Any url about to be assigned to a[href] via data-binding is first normalized and turned into
17467   * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist`
17468   * regular expression. If a match is found, the original url is written into the dom. Otherwise,
17469   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.
17470   *
17471   * @param {RegExp=} regexp New regexp to whitelist urls with.
17472   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for
17473   *    chaining otherwise.
17474   */
17475  this.aHrefSanitizationWhitelist = function(regexp) {
17476    if (isDefined(regexp)) {
17477      aHrefSanitizationWhitelist = regexp;
17478      return this;
17479    }
17480    return aHrefSanitizationWhitelist;
17481  };
17482
17483
17484  /**
17485   * @description
17486   * Retrieves or overrides the default regular expression that is used for whitelisting of safe
17487   * urls during img[src] sanitization.
17488   *
17489   * The sanitization is a security measure aimed at prevent XSS attacks via html links.
17490   *
17491   * Any url about to be assigned to img[src] via data-binding is first normalized and turned into
17492   * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist`
17493   * regular expression. If a match is found, the original url is written into the dom. Otherwise,
17494   * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM.
17495   *
17496   * @param {RegExp=} regexp New regexp to whitelist urls with.
17497   * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for
17498   *    chaining otherwise.
17499   */
17500  this.imgSrcSanitizationWhitelist = function(regexp) {
17501    if (isDefined(regexp)) {
17502      imgSrcSanitizationWhitelist = regexp;
17503      return this;
17504    }
17505    return imgSrcSanitizationWhitelist;
17506  };
17507
17508  this.$get = function() {
17509    return function sanitizeUri(uri, isImage) {
17510      var regex = isImage ? imgSrcSanitizationWhitelist : aHrefSanitizationWhitelist;
17511      var normalizedVal;
17512      normalizedVal = urlResolve(uri).href;
17513      if (normalizedVal !== '' && !normalizedVal.match(regex)) {
17514        return 'unsafe:' + normalizedVal;
17515      }
17516      return uri;
17517    };
17518  };
17519}
17520
17521/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
17522 *     Any commits to this file should be reviewed with security in mind.  *
17523 *   Changes to this file can potentially create security vulnerabilities. *
17524 *          An approval from 2 Core members with history of modifying      *
17525 *                         this file is required.                          *
17526 *                                                                         *
17527 *  Does the change somehow allow for arbitrary javascript to be executed? *
17528 *    Or allows for someone to change the prototype of built-in objects?   *
17529 *     Or gives undesired access to variables likes document or window?    *
17530 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
17531
17532var $sceMinErr = minErr('$sce');
17533
17534var SCE_CONTEXTS = {
17535  HTML: 'html',
17536  CSS: 'css',
17537  URL: 'url',
17538  // RESOURCE_URL is a subtype of URL used in contexts where a privileged resource is sourced from a
17539  // url.  (e.g. ng-include, script src, templateUrl)
17540  RESOURCE_URL: 'resourceUrl',
17541  JS: 'js'
17542};
17543
17544// Helper functions follow.
17545
17546function adjustMatcher(matcher) {
17547  if (matcher === 'self') {
17548    return matcher;
17549  } else if (isString(matcher)) {
17550    // Strings match exactly except for 2 wildcards - '*' and '**'.
17551    // '*' matches any character except those from the set ':/.?&'.
17552    // '**' matches any character (like .* in a RegExp).
17553    // More than 2 *'s raises an error as it's ill defined.
17554    if (matcher.indexOf('***') > -1) {
17555      throw $sceMinErr('iwcard',
17556          'Illegal sequence *** in string matcher.  String: {0}', matcher);
17557    }
17558    matcher = escapeForRegexp(matcher).
17559                  replace('\\*\\*', '.*').
17560                  replace('\\*', '[^:/.?&;]*');
17561    return new RegExp('^' + matcher + '$');
17562  } else if (isRegExp(matcher)) {
17563    // The only other type of matcher allowed is a Regexp.
17564    // Match entire URL / disallow partial matches.
17565    // Flags are reset (i.e. no global, ignoreCase or multiline)
17566    return new RegExp('^' + matcher.source + '$');
17567  } else {
17568    throw $sceMinErr('imatcher',
17569        'Matchers may only be "self", string patterns or RegExp objects');
17570  }
17571}
17572
17573
17574function adjustMatchers(matchers) {
17575  var adjustedMatchers = [];
17576  if (isDefined(matchers)) {
17577    forEach(matchers, function(matcher) {
17578      adjustedMatchers.push(adjustMatcher(matcher));
17579    });
17580  }
17581  return adjustedMatchers;
17582}
17583
17584
17585/**
17586 * @ngdoc service
17587 * @name $sceDelegate
17588 * @kind function
17589 *
17590 * @description
17591 *
17592 * `$sceDelegate` is a service that is used by the `$sce` service to provide {@link ng.$sce Strict
17593 * Contextual Escaping (SCE)} services to AngularJS.
17594 *
17595 * Typically, you would configure or override the {@link ng.$sceDelegate $sceDelegate} instead of
17596 * the `$sce` service to customize the way Strict Contextual Escaping works in AngularJS.  This is
17597 * because, while the `$sce` provides numerous shorthand methods, etc., you really only need to
17598 * override 3 core functions (`trustAs`, `getTrusted` and `valueOf`) to replace the way things
17599 * work because `$sce` delegates to `$sceDelegate` for these operations.
17600 *
17601 * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} to configure this service.
17602 *
17603 * The default instance of `$sceDelegate` should work out of the box with little pain.  While you
17604 * can override it completely to change the behavior of `$sce`, the common case would
17605 * involve configuring the {@link ng.$sceDelegateProvider $sceDelegateProvider} instead by setting
17606 * your own whitelists and blacklists for trusting URLs used for loading AngularJS resources such as
17607 * templates.  Refer {@link ng.$sceDelegateProvider#resourceUrlWhitelist
17608 * $sceDelegateProvider.resourceUrlWhitelist} and {@link
17609 * ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist}
17610 */
17611
17612/**
17613 * @ngdoc provider
17614 * @name $sceDelegateProvider
17615 * @description
17616 *
17617 * The `$sceDelegateProvider` provider allows developers to configure the {@link ng.$sceDelegate
17618 * $sceDelegate} service.  This allows one to get/set the whitelists and blacklists used to ensure
17619 * that the URLs used for sourcing Angular templates are safe.  Refer {@link
17620 * ng.$sceDelegateProvider#resourceUrlWhitelist $sceDelegateProvider.resourceUrlWhitelist} and
17621 * {@link ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist}
17622 *
17623 * For the general details about this service in Angular, read the main page for {@link ng.$sce
17624 * Strict Contextual Escaping (SCE)}.
17625 *
17626 * **Example**:  Consider the following case. <a name="example"></a>
17627 *
17628 * - your app is hosted at url `http://myapp.example.com/`
17629 * - but some of your templates are hosted on other domains you control such as
17630 *   `http://srv01.assets.example.com/`,  `http://srv02.assets.example.com/`, etc.
17631 * - and you have an open redirect at `http://myapp.example.com/clickThru?...`.
17632 *
17633 * Here is what a secure configuration for this scenario might look like:
17634 *
17635 * ```
17636 *  angular.module('myApp', []).config(function($sceDelegateProvider) {
17637 *    $sceDelegateProvider.resourceUrlWhitelist([
17638 *      // Allow same origin resource loads.
17639 *      'self',
17640 *      // Allow loading from our assets domain.  Notice the difference between * and **.
17641 *      'http://srv*.assets.example.com/**'
17642 *    ]);
17643 *
17644 *    // The blacklist overrides the whitelist so the open redirect here is blocked.
17645 *    $sceDelegateProvider.resourceUrlBlacklist([
17646 *      'http://myapp.example.com/clickThru**'
17647 *    ]);
17648 *  });
17649 * ```
17650 */
17651
17652function $SceDelegateProvider() {
17653  this.SCE_CONTEXTS = SCE_CONTEXTS;
17654
17655  // Resource URLs can also be trusted by policy.
17656  var resourceUrlWhitelist = ['self'],
17657      resourceUrlBlacklist = [];
17658
17659  /**
17660   * @ngdoc method
17661   * @name $sceDelegateProvider#resourceUrlWhitelist
17662   * @kind function
17663   *
17664   * @param {Array=} whitelist When provided, replaces the resourceUrlWhitelist with the value
17665   *    provided.  This must be an array or null.  A snapshot of this array is used so further
17666   *    changes to the array are ignored.
17667   *
17668   *    Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items
17669   *    allowed in this array.
17670   *
17671   *    <div class="alert alert-warning">
17672   *    **Note:** an empty whitelist array will block all URLs!
17673   *    </div>
17674   *
17675   * @return {Array} the currently set whitelist array.
17676   *
17677   * The **default value** when no whitelist has been explicitly set is `['self']` allowing only
17678   * same origin resource requests.
17679   *
17680   * @description
17681   * Sets/Gets the whitelist of trusted resource URLs.
17682   */
17683  this.resourceUrlWhitelist = function(value) {
17684    if (arguments.length) {
17685      resourceUrlWhitelist = adjustMatchers(value);
17686    }
17687    return resourceUrlWhitelist;
17688  };
17689
17690  /**
17691   * @ngdoc method
17692   * @name $sceDelegateProvider#resourceUrlBlacklist
17693   * @kind function
17694   *
17695   * @param {Array=} blacklist When provided, replaces the resourceUrlBlacklist with the value
17696   *    provided.  This must be an array or null.  A snapshot of this array is used so further
17697   *    changes to the array are ignored.
17698   *
17699   *    Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items
17700   *    allowed in this array.
17701   *
17702   *    The typical usage for the blacklist is to **block
17703   *    [open redirects](http://cwe.mitre.org/data/definitions/601.html)** served by your domain as
17704   *    these would otherwise be trusted but actually return content from the redirected domain.
17705   *
17706   *    Finally, **the blacklist overrides the whitelist** and has the final say.
17707   *
17708   * @return {Array} the currently set blacklist array.
17709   *
17710   * The **default value** when no whitelist has been explicitly set is the empty array (i.e. there
17711   * is no blacklist.)
17712   *
17713   * @description
17714   * Sets/Gets the blacklist of trusted resource URLs.
17715   */
17716
17717  this.resourceUrlBlacklist = function(value) {
17718    if (arguments.length) {
17719      resourceUrlBlacklist = adjustMatchers(value);
17720    }
17721    return resourceUrlBlacklist;
17722  };
17723
17724  this.$get = ['$injector', function($injector) {
17725
17726    var htmlSanitizer = function htmlSanitizer(html) {
17727      throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');
17728    };
17729
17730    if ($injector.has('$sanitize')) {
17731      htmlSanitizer = $injector.get('$sanitize');
17732    }
17733
17734
17735    function matchUrl(matcher, parsedUrl) {
17736      if (matcher === 'self') {
17737        return urlIsSameOrigin(parsedUrl);
17738      } else {
17739        // definitely a regex.  See adjustMatchers()
17740        return !!matcher.exec(parsedUrl.href);
17741      }
17742    }
17743
17744    function isResourceUrlAllowedByPolicy(url) {
17745      var parsedUrl = urlResolve(url.toString());
17746      var i, n, allowed = false;
17747      // Ensure that at least one item from the whitelist allows this url.
17748      for (i = 0, n = resourceUrlWhitelist.length; i < n; i++) {
17749        if (matchUrl(resourceUrlWhitelist[i], parsedUrl)) {
17750          allowed = true;
17751          break;
17752        }
17753      }
17754      if (allowed) {
17755        // Ensure that no item from the blacklist blocked this url.
17756        for (i = 0, n = resourceUrlBlacklist.length; i < n; i++) {
17757          if (matchUrl(resourceUrlBlacklist[i], parsedUrl)) {
17758            allowed = false;
17759            break;
17760          }
17761        }
17762      }
17763      return allowed;
17764    }
17765
17766    function generateHolderType(Base) {
17767      var holderType = function TrustedValueHolderType(trustedValue) {
17768        this.$$unwrapTrustedValue = function() {
17769          return trustedValue;
17770        };
17771      };
17772      if (Base) {
17773        holderType.prototype = new Base();
17774      }
17775      holderType.prototype.valueOf = function sceValueOf() {
17776        return this.$$unwrapTrustedValue();
17777      };
17778      holderType.prototype.toString = function sceToString() {
17779        return this.$$unwrapTrustedValue().toString();
17780      };
17781      return holderType;
17782    }
17783
17784    var trustedValueHolderBase = generateHolderType(),
17785        byType = {};
17786
17787    byType[SCE_CONTEXTS.HTML] = generateHolderType(trustedValueHolderBase);
17788    byType[SCE_CONTEXTS.CSS] = generateHolderType(trustedValueHolderBase);
17789    byType[SCE_CONTEXTS.URL] = generateHolderType(trustedValueHolderBase);
17790    byType[SCE_CONTEXTS.JS] = generateHolderType(trustedValueHolderBase);
17791    byType[SCE_CONTEXTS.RESOURCE_URL] = generateHolderType(byType[SCE_CONTEXTS.URL]);
17792
17793    /**
17794     * @ngdoc method
17795     * @name $sceDelegate#trustAs
17796     *
17797     * @description
17798     * Returns an object that is trusted by angular for use in specified strict
17799     * contextual escaping contexts (such as ng-bind-html, ng-include, any src
17800     * attribute interpolation, any dom event binding attribute interpolation
17801     * such as for onclick,  etc.) that uses the provided value.
17802     * See {@link ng.$sce $sce} for enabling strict contextual escaping.
17803     *
17804     * @param {string} type The kind of context in which this value is safe for use.  e.g. url,
17805     *   resourceUrl, html, js and css.
17806     * @param {*} value The value that that should be considered trusted/safe.
17807     * @returns {*} A value that can be used to stand in for the provided `value` in places
17808     * where Angular expects a $sce.trustAs() return value.
17809     */
17810    function trustAs(type, trustedValue) {
17811      var Constructor = (byType.hasOwnProperty(type) ? byType[type] : null);
17812      if (!Constructor) {
17813        throw $sceMinErr('icontext',
17814            'Attempted to trust a value in invalid context. Context: {0}; Value: {1}',
17815            type, trustedValue);
17816      }
17817      if (trustedValue === null || isUndefined(trustedValue) || trustedValue === '') {
17818        return trustedValue;
17819      }
17820      // All the current contexts in SCE_CONTEXTS happen to be strings.  In order to avoid trusting
17821      // mutable objects, we ensure here that the value passed in is actually a string.
17822      if (typeof trustedValue !== 'string') {
17823        throw $sceMinErr('itype',
17824            'Attempted to trust a non-string value in a content requiring a string: Context: {0}',
17825            type);
17826      }
17827      return new Constructor(trustedValue);
17828    }
17829
17830    /**
17831     * @ngdoc method
17832     * @name $sceDelegate#valueOf
17833     *
17834     * @description
17835     * If the passed parameter had been returned by a prior call to {@link ng.$sceDelegate#trustAs
17836     * `$sceDelegate.trustAs`}, returns the value that had been passed to {@link
17837     * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}.
17838     *
17839     * If the passed parameter is not a value that had been returned by {@link
17840     * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}, returns it as-is.
17841     *
17842     * @param {*} value The result of a prior {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}
17843     *      call or anything else.
17844     * @returns {*} The `value` that was originally provided to {@link ng.$sceDelegate#trustAs
17845     *     `$sceDelegate.trustAs`} if `value` is the result of such a call.  Otherwise, returns
17846     *     `value` unchanged.
17847     */
17848    function valueOf(maybeTrusted) {
17849      if (maybeTrusted instanceof trustedValueHolderBase) {
17850        return maybeTrusted.$$unwrapTrustedValue();
17851      } else {
17852        return maybeTrusted;
17853      }
17854    }
17855
17856    /**
17857     * @ngdoc method
17858     * @name $sceDelegate#getTrusted
17859     *
17860     * @description
17861     * Takes the result of a {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`} call and
17862     * returns the originally supplied value if the queried context type is a supertype of the
17863     * created type.  If this condition isn't satisfied, throws an exception.
17864     *
17865     * <div class="alert alert-danger">
17866     * Disabling auto-escaping is extremely dangerous, it usually creates a Cross Site Scripting
17867     * (XSS) vulnerability in your application.
17868     * </div>
17869     *
17870     * @param {string} type The kind of context in which this value is to be used.
17871     * @param {*} maybeTrusted The result of a prior {@link ng.$sceDelegate#trustAs
17872     *     `$sceDelegate.trustAs`} call.
17873     * @returns {*} The value the was originally provided to {@link ng.$sceDelegate#trustAs
17874     *     `$sceDelegate.trustAs`} if valid in this context.  Otherwise, throws an exception.
17875     */
17876    function getTrusted(type, maybeTrusted) {
17877      if (maybeTrusted === null || isUndefined(maybeTrusted) || maybeTrusted === '') {
17878        return maybeTrusted;
17879      }
17880      var constructor = (byType.hasOwnProperty(type) ? byType[type] : null);
17881      if (constructor && maybeTrusted instanceof constructor) {
17882        return maybeTrusted.$$unwrapTrustedValue();
17883      }
17884      // If we get here, then we may only take one of two actions.
17885      // 1. sanitize the value for the requested type, or
17886      // 2. throw an exception.
17887      if (type === SCE_CONTEXTS.RESOURCE_URL) {
17888        if (isResourceUrlAllowedByPolicy(maybeTrusted)) {
17889          return maybeTrusted;
17890        } else {
17891          throw $sceMinErr('insecurl',
17892              'Blocked loading resource from url not allowed by $sceDelegate policy.  URL: {0}',
17893              maybeTrusted.toString());
17894        }
17895      } else if (type === SCE_CONTEXTS.HTML) {
17896        return htmlSanitizer(maybeTrusted);
17897      }
17898      throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.');
17899    }
17900
17901    return { trustAs: trustAs,
17902             getTrusted: getTrusted,
17903             valueOf: valueOf };
17904  }];
17905}
17906
17907
17908/**
17909 * @ngdoc provider
17910 * @name $sceProvider
17911 * @description
17912 *
17913 * The $sceProvider provider allows developers to configure the {@link ng.$sce $sce} service.
17914 * -   enable/disable Strict Contextual Escaping (SCE) in a module
17915 * -   override the default implementation with a custom delegate
17916 *
17917 * Read more about {@link ng.$sce Strict Contextual Escaping (SCE)}.
17918 */
17919
17920/* jshint maxlen: false*/
17921
17922/**
17923 * @ngdoc service
17924 * @name $sce
17925 * @kind function
17926 *
17927 * @description
17928 *
17929 * `$sce` is a service that provides Strict Contextual Escaping services to AngularJS.
17930 *
17931 * # Strict Contextual Escaping
17932 *
17933 * Strict Contextual Escaping (SCE) is a mode in which AngularJS requires bindings in certain
17934 * contexts to result in a value that is marked as safe to use for that context.  One example of
17935 * such a context is binding arbitrary html controlled by the user via `ng-bind-html`.  We refer
17936 * to these contexts as privileged or SCE contexts.
17937 *
17938 * As of version 1.2, Angular ships with SCE enabled by default.
17939 *
17940 * Note:  When enabled (the default), IE<11 in quirks mode is not supported.  In this mode, IE<11 allow
17941 * one to execute arbitrary javascript by the use of the expression() syntax.  Refer
17942 * <http://blogs.msdn.com/b/ie/archive/2008/10/16/ending-expressions.aspx> to learn more about them.
17943 * You can ensure your document is in standards mode and not quirks mode by adding `<!doctype html>`
17944 * to the top of your HTML document.
17945 *
17946 * SCE assists in writing code in way that (a) is secure by default and (b) makes auditing for
17947 * security vulnerabilities such as XSS, clickjacking, etc. a lot easier.
17948 *
17949 * Here's an example of a binding in a privileged context:
17950 *
17951 * ```
17952 * <input ng-model="userHtml" aria-label="User input">
17953 * <div ng-bind-html="userHtml"></div>
17954 * ```
17955 *
17956 * Notice that `ng-bind-html` is bound to `userHtml` controlled by the user.  With SCE
17957 * disabled, this application allows the user to render arbitrary HTML into the DIV.
17958 * In a more realistic example, one may be rendering user comments, blog articles, etc. via
17959 * bindings.  (HTML is just one example of a context where rendering user controlled input creates
17960 * security vulnerabilities.)
17961 *
17962 * For the case of HTML, you might use a library, either on the client side, or on the server side,
17963 * to sanitize unsafe HTML before binding to the value and rendering it in the document.
17964 *
17965 * How would you ensure that every place that used these types of bindings was bound to a value that
17966 * was sanitized by your library (or returned as safe for rendering by your server?)  How can you
17967 * ensure that you didn't accidentally delete the line that sanitized the value, or renamed some
17968 * properties/fields and forgot to update the binding to the sanitized value?
17969 *
17970 * To be secure by default, you want to ensure that any such bindings are disallowed unless you can
17971 * determine that something explicitly says it's safe to use a value for binding in that
17972 * context.  You can then audit your code (a simple grep would do) to ensure that this is only done
17973 * for those values that you can easily tell are safe - because they were received from your server,
17974 * sanitized by your library, etc.  You can organize your codebase to help with this - perhaps
17975 * allowing only the files in a specific directory to do this.  Ensuring that the internal API
17976 * exposed by that code doesn't markup arbitrary values as safe then becomes a more manageable task.
17977 *
17978 * In the case of AngularJS' SCE service, one uses {@link ng.$sce#trustAs $sce.trustAs}
17979 * (and shorthand methods such as {@link ng.$sce#trustAsHtml $sce.trustAsHtml}, etc.) to
17980 * obtain values that will be accepted by SCE / privileged contexts.
17981 *
17982 *
17983 * ## How does it work?
17984 *
17985 * In privileged contexts, directives and code will bind to the result of {@link ng.$sce#getTrusted
17986 * $sce.getTrusted(context, value)} rather than to the value directly.  Directives use {@link
17987 * ng.$sce#parseAs $sce.parseAs} rather than `$parse` to watch attribute bindings, which performs the
17988 * {@link ng.$sce#getTrusted $sce.getTrusted} behind the scenes on non-constant literals.
17989 *
17990 * As an example, {@link ng.directive:ngBindHtml ngBindHtml} uses {@link
17991 * ng.$sce#parseAsHtml $sce.parseAsHtml(binding expression)}.  Here's the actual code (slightly
17992 * simplified):
17993 *
17994 * ```
17995 * var ngBindHtmlDirective = ['$sce', function($sce) {
17996 *   return function(scope, element, attr) {
17997 *     scope.$watch($sce.parseAsHtml(attr.ngBindHtml), function(value) {
17998 *       element.html(value || '');
17999 *     });
18000 *   };
18001 * }];
18002 * ```
18003 *
18004 * ## Impact on loading templates
18005 *
18006 * This applies both to the {@link ng.directive:ngInclude `ng-include`} directive as well as
18007 * `templateUrl`'s specified by {@link guide/directive directives}.
18008 *
18009 * By default, Angular only loads templates from the same domain and protocol as the application
18010 * document.  This is done by calling {@link ng.$sce#getTrustedResourceUrl
18011 * $sce.getTrustedResourceUrl} on the template URL.  To load templates from other domains and/or
18012 * protocols, you may either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist
18013 * them} or {@link ng.$sce#trustAsResourceUrl wrap it} into a trusted value.
18014 *
18015 * *Please note*:
18016 * The browser's
18017 * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)
18018 * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)
18019 * policy apply in addition to this and may further restrict whether the template is successfully
18020 * loaded.  This means that without the right CORS policy, loading templates from a different domain
18021 * won't work on all browsers.  Also, loading templates from `file://` URL does not work on some
18022 * browsers.
18023 *
18024 * ## This feels like too much overhead
18025 *
18026 * It's important to remember that SCE only applies to interpolation expressions.
18027 *
18028 * If your expressions are constant literals, they're automatically trusted and you don't need to
18029 * call `$sce.trustAs` on them (remember to include the `ngSanitize` module) (e.g.
18030 * `<div ng-bind-html="'<b>implicitly trusted</b>'"></div>`) just works.
18031 *
18032 * Additionally, `a[href]` and `img[src]` automatically sanitize their URLs and do not pass them
18033 * through {@link ng.$sce#getTrusted $sce.getTrusted}.  SCE doesn't play a role here.
18034 *
18035 * The included {@link ng.$sceDelegate $sceDelegate} comes with sane defaults to allow you to load
18036 * templates in `ng-include` from your application's domain without having to even know about SCE.
18037 * It blocks loading templates from other domains or loading templates over http from an https
18038 * served document.  You can change these by setting your own custom {@link
18039 * ng.$sceDelegateProvider#resourceUrlWhitelist whitelists} and {@link
18040 * ng.$sceDelegateProvider#resourceUrlBlacklist blacklists} for matching such URLs.
18041 *
18042 * This significantly reduces the overhead.  It is far easier to pay the small overhead and have an
18043 * application that's secure and can be audited to verify that with much more ease than bolting
18044 * security onto an application later.
18045 *
18046 * <a name="contexts"></a>
18047 * ## What trusted context types are supported?
18048 *
18049 * | Context             | Notes          |
18050 * |---------------------|----------------|
18051 * | `$sce.HTML`         | For HTML that's safe to source into the application.  The {@link ng.directive:ngBindHtml ngBindHtml} directive uses this context for bindings. If an unsafe value is encountered and the {@link ngSanitize $sanitize} module is present this will sanitize the value instead of throwing an error. |
18052 * | `$sce.CSS`          | For CSS that's safe to source into the application.  Currently unused.  Feel free to use it in your own directives. |
18053 * | `$sce.URL`          | For URLs that are safe to follow as links.  Currently unused (`<a href=` and `<img src=` sanitize their urls and don't constitute an SCE context. |
18054 * | `$sce.RESOURCE_URL` | For URLs that are not only safe to follow as links, but whose contents are also safe to include in your application.  Examples include `ng-include`, `src` / `ngSrc` bindings for tags other than `IMG` (e.g. `IFRAME`, `OBJECT`, etc.)  <br><br>Note that `$sce.RESOURCE_URL` makes a stronger statement about the URL than `$sce.URL` does and therefore contexts requiring values trusted for `$sce.RESOURCE_URL` can be used anywhere that values trusted for `$sce.URL` are required. |
18055 * | `$sce.JS`           | For JavaScript that is safe to execute in your application's context.  Currently unused.  Feel free to use it in your own directives. |
18056 *
18057 * ## Format of items in {@link ng.$sceDelegateProvider#resourceUrlWhitelist resourceUrlWhitelist}/{@link ng.$sceDelegateProvider#resourceUrlBlacklist Blacklist} <a name="resourceUrlPatternItem"></a>
18058 *
18059 *  Each element in these arrays must be one of the following:
18060 *
18061 *  - **'self'**
18062 *    - The special **string**, `'self'`, can be used to match against all URLs of the **same
18063 *      domain** as the application document using the **same protocol**.
18064 *  - **String** (except the special value `'self'`)
18065 *    - The string is matched against the full *normalized / absolute URL* of the resource
18066 *      being tested (substring matches are not good enough.)
18067 *    - There are exactly **two wildcard sequences** - `*` and `**`.  All other characters
18068 *      match themselves.
18069 *    - `*`: matches zero or more occurrences of any character other than one of the following 6
18070 *      characters: '`:`', '`/`', '`.`', '`?`', '`&`' and '`;`'.  It's a useful wildcard for use
18071 *      in a whitelist.
18072 *    - `**`: matches zero or more occurrences of *any* character.  As such, it's not
18073 *      appropriate for use in a scheme, domain, etc. as it would match too much.  (e.g.
18074 *      http://**.example.com/ would match http://evil.com/?ignore=.example.com/ and that might
18075 *      not have been the intention.)  Its usage at the very end of the path is ok.  (e.g.
18076 *      http://foo.example.com/templates/**).
18077 *  - **RegExp** (*see caveat below*)
18078 *    - *Caveat*:  While regular expressions are powerful and offer great flexibility,  their syntax
18079 *      (and all the inevitable escaping) makes them *harder to maintain*.  It's easy to
18080 *      accidentally introduce a bug when one updates a complex expression (imho, all regexes should
18081 *      have good test coverage).  For instance, the use of `.` in the regex is correct only in a
18082 *      small number of cases.  A `.` character in the regex used when matching the scheme or a
18083 *      subdomain could be matched against a `:` or literal `.` that was likely not intended.   It
18084 *      is highly recommended to use the string patterns and only fall back to regular expressions
18085 *      as a last resort.
18086 *    - The regular expression must be an instance of RegExp (i.e. not a string.)  It is
18087 *      matched against the **entire** *normalized / absolute URL* of the resource being tested
18088 *      (even when the RegExp did not have the `^` and `$` codes.)  In addition, any flags
18089 *      present on the RegExp (such as multiline, global, ignoreCase) are ignored.
18090 *    - If you are generating your JavaScript from some other templating engine (not
18091 *      recommended, e.g. in issue [#4006](https://github.com/angular/angular.js/issues/4006)),
18092 *      remember to escape your regular expression (and be aware that you might need more than
18093 *      one level of escaping depending on your templating engine and the way you interpolated
18094 *      the value.)  Do make use of your platform's escaping mechanism as it might be good
18095 *      enough before coding your own.  E.g. Ruby has
18096 *      [Regexp.escape(str)](http://www.ruby-doc.org/core-2.0.0/Regexp.html#method-c-escape)
18097 *      and Python has [re.escape](http://docs.python.org/library/re.html#re.escape).
18098 *      Javascript lacks a similar built in function for escaping.  Take a look at Google
18099 *      Closure library's [goog.string.regExpEscape(s)](
18100 *      http://docs.closure-library.googlecode.com/git/closure_goog_string_string.js.source.html#line962).
18101 *
18102 * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} for an example.
18103 *
18104 * ## Show me an example using SCE.
18105 *
18106 * <example module="mySceApp" deps="angular-sanitize.js">
18107 * <file name="index.html">
18108 *   <div ng-controller="AppController as myCtrl">
18109 *     <i ng-bind-html="myCtrl.explicitlyTrustedHtml" id="explicitlyTrustedHtml"></i><br><br>
18110 *     <b>User comments</b><br>
18111 *     By default, HTML that isn't explicitly trusted (e.g. Alice's comment) is sanitized when
18112 *     $sanitize is available.  If $sanitize isn't available, this results in an error instead of an
18113 *     exploit.
18114 *     <div class="well">
18115 *       <div ng-repeat="userComment in myCtrl.userComments">
18116 *         <b>{{userComment.name}}</b>:
18117 *         <span ng-bind-html="userComment.htmlComment" class="htmlComment"></span>
18118 *         <br>
18119 *       </div>
18120 *     </div>
18121 *   </div>
18122 * </file>
18123 *
18124 * <file name="script.js">
18125 *   angular.module('mySceApp', ['ngSanitize'])
18126 *     .controller('AppController', ['$http', '$templateCache', '$sce',
18127 *       function($http, $templateCache, $sce) {
18128 *         var self = this;
18129 *         $http.get("test_data.json", {cache: $templateCache}).success(function(userComments) {
18130 *           self.userComments = userComments;
18131 *         });
18132 *         self.explicitlyTrustedHtml = $sce.trustAsHtml(
18133 *             '<span onmouseover="this.textContent=&quot;Explicitly trusted HTML bypasses ' +
18134 *             'sanitization.&quot;">Hover over this text.</span>');
18135 *       }]);
18136 * </file>
18137 *
18138 * <file name="test_data.json">
18139 * [
18140 *   { "name": "Alice",
18141 *     "htmlComment":
18142 *         "<span onmouseover='this.textContent=\"PWN3D!\"'>Is <i>anyone</i> reading this?</span>"
18143 *   },
18144 *   { "name": "Bob",
18145 *     "htmlComment": "<i>Yes!</i>  Am I the only other one?"
18146 *   }
18147 * ]
18148 * </file>
18149 *
18150 * <file name="protractor.js" type="protractor">
18151 *   describe('SCE doc demo', function() {
18152 *     it('should sanitize untrusted values', function() {
18153 *       expect(element.all(by.css('.htmlComment')).first().getInnerHtml())
18154 *           .toBe('<span>Is <i>anyone</i> reading this?</span>');
18155 *     });
18156 *
18157 *     it('should NOT sanitize explicitly trusted values', function() {
18158 *       expect(element(by.id('explicitlyTrustedHtml')).getInnerHtml()).toBe(
18159 *           '<span onmouseover="this.textContent=&quot;Explicitly trusted HTML bypasses ' +
18160 *           'sanitization.&quot;">Hover over this text.</span>');
18161 *     });
18162 *   });
18163 * </file>
18164 * </example>
18165 *
18166 *
18167 *
18168 * ## Can I disable SCE completely?
18169 *
18170 * Yes, you can.  However, this is strongly discouraged.  SCE gives you a lot of security benefits
18171 * for little coding overhead.  It will be much harder to take an SCE disabled application and
18172 * either secure it on your own or enable SCE at a later stage.  It might make sense to disable SCE
18173 * for cases where you have a lot of existing code that was written before SCE was introduced and
18174 * you're migrating them a module at a time.
18175 *
18176 * That said, here's how you can completely disable SCE:
18177 *
18178 * ```
18179 * angular.module('myAppWithSceDisabledmyApp', []).config(function($sceProvider) {
18180 *   // Completely disable SCE.  For demonstration purposes only!
18181 *   // Do not use in new projects.
18182 *   $sceProvider.enabled(false);
18183 * });
18184 * ```
18185 *
18186 */
18187/* jshint maxlen: 100 */
18188
18189function $SceProvider() {
18190  var enabled = true;
18191
18192  /**
18193   * @ngdoc method
18194   * @name $sceProvider#enabled
18195   * @kind function
18196   *
18197   * @param {boolean=} value If provided, then enables/disables SCE.
18198   * @return {boolean} true if SCE is enabled, false otherwise.
18199   *
18200   * @description
18201   * Enables/disables SCE and returns the current value.
18202   */
18203  this.enabled = function(value) {
18204    if (arguments.length) {
18205      enabled = !!value;
18206    }
18207    return enabled;
18208  };
18209
18210
18211  /* Design notes on the default implementation for SCE.
18212   *
18213   * The API contract for the SCE delegate
18214   * -------------------------------------
18215   * The SCE delegate object must provide the following 3 methods:
18216   *
18217   * - trustAs(contextEnum, value)
18218   *     This method is used to tell the SCE service that the provided value is OK to use in the
18219   *     contexts specified by contextEnum.  It must return an object that will be accepted by
18220   *     getTrusted() for a compatible contextEnum and return this value.
18221   *
18222   * - valueOf(value)
18223   *     For values that were not produced by trustAs(), return them as is.  For values that were
18224   *     produced by trustAs(), return the corresponding input value to trustAs.  Basically, if
18225   *     trustAs is wrapping the given values into some type, this operation unwraps it when given
18226   *     such a value.
18227   *
18228   * - getTrusted(contextEnum, value)
18229   *     This function should return the a value that is safe to use in the context specified by
18230   *     contextEnum or throw and exception otherwise.
18231   *
18232   * NOTE: This contract deliberately does NOT state that values returned by trustAs() must be
18233   * opaque or wrapped in some holder object.  That happens to be an implementation detail.  For
18234   * instance, an implementation could maintain a registry of all trusted objects by context.  In
18235   * such a case, trustAs() would return the same object that was passed in.  getTrusted() would
18236   * return the same object passed in if it was found in the registry under a compatible context or
18237   * throw an exception otherwise.  An implementation might only wrap values some of the time based
18238   * on some criteria.  getTrusted() might return a value and not throw an exception for special
18239   * constants or objects even if not wrapped.  All such implementations fulfill this contract.
18240   *
18241   *
18242   * A note on the inheritance model for SCE contexts
18243   * ------------------------------------------------
18244   * I've used inheritance and made RESOURCE_URL wrapped types a subtype of URL wrapped types.  This
18245   * is purely an implementation details.
18246   *
18247   * The contract is simply this:
18248   *
18249   *     getTrusted($sce.RESOURCE_URL, value) succeeding implies that getTrusted($sce.URL, value)
18250   *     will also succeed.
18251   *
18252   * Inheritance happens to capture this in a natural way.  In some future, we
18253   * may not use inheritance anymore.  That is OK because no code outside of
18254   * sce.js and sceSpecs.js would need to be aware of this detail.
18255   */
18256
18257  this.$get = ['$parse', '$sceDelegate', function(
18258                $parse,   $sceDelegate) {
18259    // Prereq: Ensure that we're not running in IE<11 quirks mode.  In that mode, IE < 11 allow
18260    // the "expression(javascript expression)" syntax which is insecure.
18261    if (enabled && msie < 8) {
18262      throw $sceMinErr('iequirks',
18263        'Strict Contextual Escaping does not support Internet Explorer version < 11 in quirks ' +
18264        'mode.  You can fix this by adding the text <!doctype html> to the top of your HTML ' +
18265        'document.  See http://docs.angularjs.org/api/ng.$sce for more information.');
18266    }
18267
18268    var sce = shallowCopy(SCE_CONTEXTS);
18269
18270    /**
18271     * @ngdoc method
18272     * @name $sce#isEnabled
18273     * @kind function
18274     *
18275     * @return {Boolean} true if SCE is enabled, false otherwise.  If you want to set the value, you
18276     * have to do it at module config time on {@link ng.$sceProvider $sceProvider}.
18277     *
18278     * @description
18279     * Returns a boolean indicating if SCE is enabled.
18280     */
18281    sce.isEnabled = function() {
18282      return enabled;
18283    };
18284    sce.trustAs = $sceDelegate.trustAs;
18285    sce.getTrusted = $sceDelegate.getTrusted;
18286    sce.valueOf = $sceDelegate.valueOf;
18287
18288    if (!enabled) {
18289      sce.trustAs = sce.getTrusted = function(type, value) { return value; };
18290      sce.valueOf = identity;
18291    }
18292
18293    /**
18294     * @ngdoc method
18295     * @name $sce#parseAs
18296     *
18297     * @description
18298     * Converts Angular {@link guide/expression expression} into a function.  This is like {@link
18299     * ng.$parse $parse} and is identical when the expression is a literal constant.  Otherwise, it
18300     * wraps the expression in a call to {@link ng.$sce#getTrusted $sce.getTrusted(*type*,
18301     * *result*)}
18302     *
18303     * @param {string} type The kind of SCE context in which this result will be used.
18304     * @param {string} expression String expression to compile.
18305     * @returns {function(context, locals)} a function which represents the compiled expression:
18306     *
18307     *    * `context` – `{object}` – an object against which any expressions embedded in the strings
18308     *      are evaluated against (typically a scope object).
18309     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in
18310     *      `context`.
18311     */
18312    sce.parseAs = function sceParseAs(type, expr) {
18313      var parsed = $parse(expr);
18314      if (parsed.literal && parsed.constant) {
18315        return parsed;
18316      } else {
18317        return $parse(expr, function(value) {
18318          return sce.getTrusted(type, value);
18319        });
18320      }
18321    };
18322
18323    /**
18324     * @ngdoc method
18325     * @name $sce#trustAs
18326     *
18327     * @description
18328     * Delegates to {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}.  As such,
18329     * returns an object that is trusted by angular for use in specified strict contextual
18330     * escaping contexts (such as ng-bind-html, ng-include, any src attribute
18331     * interpolation, any dom event binding attribute interpolation such as for onclick,  etc.)
18332     * that uses the provided value.  See * {@link ng.$sce $sce} for enabling strict contextual
18333     * escaping.
18334     *
18335     * @param {string} type The kind of context in which this value is safe for use.  e.g. url,
18336     *   resourceUrl, html, js and css.
18337     * @param {*} value The value that that should be considered trusted/safe.
18338     * @returns {*} A value that can be used to stand in for the provided `value` in places
18339     * where Angular expects a $sce.trustAs() return value.
18340     */
18341
18342    /**
18343     * @ngdoc method
18344     * @name $sce#trustAsHtml
18345     *
18346     * @description
18347     * Shorthand method.  `$sce.trustAsHtml(value)` →
18348     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.HTML, value)`}
18349     *
18350     * @param {*} value The value to trustAs.
18351     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedHtml
18352     *     $sce.getTrustedHtml(value)} to obtain the original value.  (privileged directives
18353     *     only accept expressions that are either literal constants or are the
18354     *     return value of {@link ng.$sce#trustAs $sce.trustAs}.)
18355     */
18356
18357    /**
18358     * @ngdoc method
18359     * @name $sce#trustAsUrl
18360     *
18361     * @description
18362     * Shorthand method.  `$sce.trustAsUrl(value)` →
18363     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.URL, value)`}
18364     *
18365     * @param {*} value The value to trustAs.
18366     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedUrl
18367     *     $sce.getTrustedUrl(value)} to obtain the original value.  (privileged directives
18368     *     only accept expressions that are either literal constants or are the
18369     *     return value of {@link ng.$sce#trustAs $sce.trustAs}.)
18370     */
18371
18372    /**
18373     * @ngdoc method
18374     * @name $sce#trustAsResourceUrl
18375     *
18376     * @description
18377     * Shorthand method.  `$sce.trustAsResourceUrl(value)` →
18378     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.RESOURCE_URL, value)`}
18379     *
18380     * @param {*} value The value to trustAs.
18381     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedResourceUrl
18382     *     $sce.getTrustedResourceUrl(value)} to obtain the original value.  (privileged directives
18383     *     only accept expressions that are either literal constants or are the return
18384     *     value of {@link ng.$sce#trustAs $sce.trustAs}.)
18385     */
18386
18387    /**
18388     * @ngdoc method
18389     * @name $sce#trustAsJs
18390     *
18391     * @description
18392     * Shorthand method.  `$sce.trustAsJs(value)` →
18393     *     {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.JS, value)`}
18394     *
18395     * @param {*} value The value to trustAs.
18396     * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedJs
18397     *     $sce.getTrustedJs(value)} to obtain the original value.  (privileged directives
18398     *     only accept expressions that are either literal constants or are the
18399     *     return value of {@link ng.$sce#trustAs $sce.trustAs}.)
18400     */
18401
18402    /**
18403     * @ngdoc method
18404     * @name $sce#getTrusted
18405     *
18406     * @description
18407     * Delegates to {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted`}.  As such,
18408     * takes the result of a {@link ng.$sce#trustAs `$sce.trustAs`}() call and returns the
18409     * originally supplied value if the queried context type is a supertype of the created type.
18410     * If this condition isn't satisfied, throws an exception.
18411     *
18412     * @param {string} type The kind of context in which this value is to be used.
18413     * @param {*} maybeTrusted The result of a prior {@link ng.$sce#trustAs `$sce.trustAs`}
18414     *                         call.
18415     * @returns {*} The value the was originally provided to
18416     *              {@link ng.$sce#trustAs `$sce.trustAs`} if valid in this context.
18417     *              Otherwise, throws an exception.
18418     */
18419
18420    /**
18421     * @ngdoc method
18422     * @name $sce#getTrustedHtml
18423     *
18424     * @description
18425     * Shorthand method.  `$sce.getTrustedHtml(value)` →
18426     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.HTML, value)`}
18427     *
18428     * @param {*} value The value to pass to `$sce.getTrusted`.
18429     * @returns {*} The return value of `$sce.getTrusted($sce.HTML, value)`
18430     */
18431
18432    /**
18433     * @ngdoc method
18434     * @name $sce#getTrustedCss
18435     *
18436     * @description
18437     * Shorthand method.  `$sce.getTrustedCss(value)` →
18438     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.CSS, value)`}
18439     *
18440     * @param {*} value The value to pass to `$sce.getTrusted`.
18441     * @returns {*} The return value of `$sce.getTrusted($sce.CSS, value)`
18442     */
18443
18444    /**
18445     * @ngdoc method
18446     * @name $sce#getTrustedUrl
18447     *
18448     * @description
18449     * Shorthand method.  `$sce.getTrustedUrl(value)` →
18450     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.URL, value)`}
18451     *
18452     * @param {*} value The value to pass to `$sce.getTrusted`.
18453     * @returns {*} The return value of `$sce.getTrusted($sce.URL, value)`
18454     */
18455
18456    /**
18457     * @ngdoc method
18458     * @name $sce#getTrustedResourceUrl
18459     *
18460     * @description
18461     * Shorthand method.  `$sce.getTrustedResourceUrl(value)` →
18462     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.RESOURCE_URL, value)`}
18463     *
18464     * @param {*} value The value to pass to `$sceDelegate.getTrusted`.
18465     * @returns {*} The return value of `$sce.getTrusted($sce.RESOURCE_URL, value)`
18466     */
18467
18468    /**
18469     * @ngdoc method
18470     * @name $sce#getTrustedJs
18471     *
18472     * @description
18473     * Shorthand method.  `$sce.getTrustedJs(value)` →
18474     *     {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.JS, value)`}
18475     *
18476     * @param {*} value The value to pass to `$sce.getTrusted`.
18477     * @returns {*} The return value of `$sce.getTrusted($sce.JS, value)`
18478     */
18479
18480    /**
18481     * @ngdoc method
18482     * @name $sce#parseAsHtml
18483     *
18484     * @description
18485     * Shorthand method.  `$sce.parseAsHtml(expression string)` →
18486     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.HTML, value)`}
18487     *
18488     * @param {string} expression String expression to compile.
18489     * @returns {function(context, locals)} a function which represents the compiled expression:
18490     *
18491     *    * `context` – `{object}` – an object against which any expressions embedded in the strings
18492     *      are evaluated against (typically a scope object).
18493     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in
18494     *      `context`.
18495     */
18496
18497    /**
18498     * @ngdoc method
18499     * @name $sce#parseAsCss
18500     *
18501     * @description
18502     * Shorthand method.  `$sce.parseAsCss(value)` →
18503     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.CSS, value)`}
18504     *
18505     * @param {string} expression String expression to compile.
18506     * @returns {function(context, locals)} a function which represents the compiled expression:
18507     *
18508     *    * `context` – `{object}` – an object against which any expressions embedded in the strings
18509     *      are evaluated against (typically a scope object).
18510     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in
18511     *      `context`.
18512     */
18513
18514    /**
18515     * @ngdoc method
18516     * @name $sce#parseAsUrl
18517     *
18518     * @description
18519     * Shorthand method.  `$sce.parseAsUrl(value)` →
18520     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.URL, value)`}
18521     *
18522     * @param {string} expression String expression to compile.
18523     * @returns {function(context, locals)} a function which represents the compiled expression:
18524     *
18525     *    * `context` – `{object}` – an object against which any expressions embedded in the strings
18526     *      are evaluated against (typically a scope object).
18527     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in
18528     *      `context`.
18529     */
18530
18531    /**
18532     * @ngdoc method
18533     * @name $sce#parseAsResourceUrl
18534     *
18535     * @description
18536     * Shorthand method.  `$sce.parseAsResourceUrl(value)` →
18537     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.RESOURCE_URL, value)`}
18538     *
18539     * @param {string} expression String expression to compile.
18540     * @returns {function(context, locals)} a function which represents the compiled expression:
18541     *
18542     *    * `context` – `{object}` – an object against which any expressions embedded in the strings
18543     *      are evaluated against (typically a scope object).
18544     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in
18545     *      `context`.
18546     */
18547
18548    /**
18549     * @ngdoc method
18550     * @name $sce#parseAsJs
18551     *
18552     * @description
18553     * Shorthand method.  `$sce.parseAsJs(value)` →
18554     *     {@link ng.$sce#parseAs `$sce.parseAs($sce.JS, value)`}
18555     *
18556     * @param {string} expression String expression to compile.
18557     * @returns {function(context, locals)} a function which represents the compiled expression:
18558     *
18559     *    * `context` – `{object}` – an object against which any expressions embedded in the strings
18560     *      are evaluated against (typically a scope object).
18561     *    * `locals` – `{object=}` – local variables context object, useful for overriding values in
18562     *      `context`.
18563     */
18564
18565    // Shorthand delegations.
18566    var parse = sce.parseAs,
18567        getTrusted = sce.getTrusted,
18568        trustAs = sce.trustAs;
18569
18570    forEach(SCE_CONTEXTS, function(enumValue, name) {
18571      var lName = lowercase(name);
18572      sce[camelCase("parse_as_" + lName)] = function(expr) {
18573        return parse(enumValue, expr);
18574      };
18575      sce[camelCase("get_trusted_" + lName)] = function(value) {
18576        return getTrusted(enumValue, value);
18577      };
18578      sce[camelCase("trust_as_" + lName)] = function(value) {
18579        return trustAs(enumValue, value);
18580      };
18581    });
18582
18583    return sce;
18584  }];
18585}
18586
18587/**
18588 * !!! This is an undocumented "private" service !!!
18589 *
18590 * @name $sniffer
18591 * @requires $window
18592 * @requires $document
18593 *
18594 * @property {boolean} history Does the browser support html5 history api ?
18595 * @property {boolean} transitions Does the browser support CSS transition events ?
18596 * @property {boolean} animations Does the browser support CSS animation events ?
18597 *
18598 * @description
18599 * This is very simple implementation of testing browser's features.
18600 */
18601function $SnifferProvider() {
18602  this.$get = ['$window', '$document', function($window, $document) {
18603    var eventSupport = {},
18604        // Chrome Packaged Apps are not allowed to access `history.pushState`. They can be detected by
18605        // the presence of `chrome.app.runtime` (see https://developer.chrome.com/apps/api_index)
18606        isChromePackagedApp = $window.chrome && $window.chrome.app && $window.chrome.app.runtime,
18607        hasHistoryPushState = !isChromePackagedApp && $window.history && $window.history.pushState,
18608        android =
18609          toInt((/android (\d+)/.exec(lowercase(($window.navigator || {}).userAgent)) || [])[1]),
18610        boxee = /Boxee/i.test(($window.navigator || {}).userAgent),
18611        document = $document[0] || {},
18612        vendorPrefix,
18613        vendorRegex = /^(Moz|webkit|ms)(?=[A-Z])/,
18614        bodyStyle = document.body && document.body.style,
18615        transitions = false,
18616        animations = false,
18617        match;
18618
18619    if (bodyStyle) {
18620      for (var prop in bodyStyle) {
18621        if (match = vendorRegex.exec(prop)) {
18622          vendorPrefix = match[0];
18623          vendorPrefix = vendorPrefix.substr(0, 1).toUpperCase() + vendorPrefix.substr(1);
18624          break;
18625        }
18626      }
18627
18628      if (!vendorPrefix) {
18629        vendorPrefix = ('WebkitOpacity' in bodyStyle) && 'webkit';
18630      }
18631
18632      transitions = !!(('transition' in bodyStyle) || (vendorPrefix + 'Transition' in bodyStyle));
18633      animations  = !!(('animation' in bodyStyle) || (vendorPrefix + 'Animation' in bodyStyle));
18634
18635      if (android && (!transitions ||  !animations)) {
18636        transitions = isString(bodyStyle.webkitTransition);
18637        animations = isString(bodyStyle.webkitAnimation);
18638      }
18639    }
18640
18641
18642    return {
18643      // Android has history.pushState, but it does not update location correctly
18644      // so let's not use the history API at all.
18645      // http://code.google.com/p/android/issues/detail?id=17471
18646      // https://github.com/angular/angular.js/issues/904
18647
18648      // older webkit browser (533.9) on Boxee box has exactly the same problem as Android has
18649      // so let's not use the history API also
18650      // We are purposefully using `!(android < 4)` to cover the case when `android` is undefined
18651      // jshint -W018
18652      history: !!(hasHistoryPushState && !(android < 4) && !boxee),
18653      // jshint +W018
18654      hasEvent: function(event) {
18655        // IE9 implements 'input' event it's so fubared that we rather pretend that it doesn't have
18656        // it. In particular the event is not fired when backspace or delete key are pressed or
18657        // when cut operation is performed.
18658        // IE10+ implements 'input' event but it erroneously fires under various situations,
18659        // e.g. when placeholder changes, or a form is focused.
18660        if (event === 'input' && msie <= 11) return false;
18661
18662        if (isUndefined(eventSupport[event])) {
18663          var divElm = document.createElement('div');
18664          eventSupport[event] = 'on' + event in divElm;
18665        }
18666
18667        return eventSupport[event];
18668      },
18669      csp: csp(),
18670      vendorPrefix: vendorPrefix,
18671      transitions: transitions,
18672      animations: animations,
18673      android: android
18674    };
18675  }];
18676}
18677
18678var $templateRequestMinErr = minErr('$compile');
18679
18680/**
18681 * @ngdoc provider
18682 * @name $templateRequestProvider
18683 * @description
18684 * Used to configure the options passed to the {@link $http} service when making a template request.
18685 *
18686 * For example, it can be used for specifying the "Accept" header that is sent to the server, when
18687 * requesting a template.
18688 */
18689function $TemplateRequestProvider() {
18690
18691  var httpOptions;
18692
18693  /**
18694   * @ngdoc method
18695   * @name $templateRequestProvider#httpOptions
18696   * @description
18697   * The options to be passed to the {@link $http} service when making the request.
18698   * You can use this to override options such as the "Accept" header for template requests.
18699   *
18700   * The {@link $templateRequest} will set the `cache` and the `transformResponse` properties of the
18701   * options if not overridden here.
18702   *
18703   * @param {string=} value new value for the {@link $http} options.
18704   * @returns {string|self} Returns the {@link $http} options when used as getter and self if used as setter.
18705   */
18706  this.httpOptions = function(val) {
18707    if (val) {
18708      httpOptions = val;
18709      return this;
18710    }
18711    return httpOptions;
18712  };
18713
18714  /**
18715   * @ngdoc service
18716   * @name $templateRequest
18717   *
18718   * @description
18719   * The `$templateRequest` service runs security checks then downloads the provided template using
18720   * `$http` and, upon success, stores the contents inside of `$templateCache`. If the HTTP request
18721   * fails or the response data of the HTTP request is empty, a `$compile` error will be thrown (the
18722   * exception can be thwarted by setting the 2nd parameter of the function to true). Note that the
18723   * contents of `$templateCache` are trusted, so the call to `$sce.getTrustedUrl(tpl)` is omitted
18724   * when `tpl` is of type string and `$templateCache` has the matching entry.
18725   *
18726   * If you want to pass custom options to the `$http` service, such as setting the Accept header you
18727   * can configure this via {@link $templateRequestProvider#httpOptions}.
18728   *
18729   * @param {string|TrustedResourceUrl} tpl The HTTP request template URL
18730   * @param {boolean=} ignoreRequestError Whether or not to ignore the exception when the request fails or the template is empty
18731   *
18732   * @return {Promise} a promise for the HTTP response data of the given URL.
18733   *
18734   * @property {number} totalPendingRequests total amount of pending template requests being downloaded.
18735   */
18736  this.$get = ['$templateCache', '$http', '$q', '$sce', function($templateCache, $http, $q, $sce) {
18737
18738    function handleRequestFn(tpl, ignoreRequestError) {
18739      handleRequestFn.totalPendingRequests++;
18740
18741      // We consider the template cache holds only trusted templates, so
18742      // there's no need to go through whitelisting again for keys that already
18743      // are included in there. This also makes Angular accept any script
18744      // directive, no matter its name. However, we still need to unwrap trusted
18745      // types.
18746      if (!isString(tpl) || !$templateCache.get(tpl)) {
18747        tpl = $sce.getTrustedResourceUrl(tpl);
18748      }
18749
18750      var transformResponse = $http.defaults && $http.defaults.transformResponse;
18751
18752      if (isArray(transformResponse)) {
18753        transformResponse = transformResponse.filter(function(transformer) {
18754          return transformer !== defaultHttpResponseTransform;
18755        });
18756      } else if (transformResponse === defaultHttpResponseTransform) {
18757        transformResponse = null;
18758      }
18759
18760      return $http.get(tpl, extend({
18761          cache: $templateCache,
18762          transformResponse: transformResponse
18763        }, httpOptions))
18764        ['finally'](function() {
18765          handleRequestFn.totalPendingRequests--;
18766        })
18767        .then(function(response) {
18768          $templateCache.put(tpl, response.data);
18769          return response.data;
18770        }, handleError);
18771
18772      function handleError(resp) {
18773        if (!ignoreRequestError) {
18774          throw $templateRequestMinErr('tpload', 'Failed to load template: {0} (HTTP status: {1} {2})',
18775            tpl, resp.status, resp.statusText);
18776        }
18777        return $q.reject(resp);
18778      }
18779    }
18780
18781    handleRequestFn.totalPendingRequests = 0;
18782
18783    return handleRequestFn;
18784  }];
18785}
18786
18787function $$TestabilityProvider() {
18788  this.$get = ['$rootScope', '$browser', '$location',
18789       function($rootScope,   $browser,   $location) {
18790
18791    /**
18792     * @name $testability
18793     *
18794     * @description
18795     * The private $$testability service provides a collection of methods for use when debugging
18796     * or by automated test and debugging tools.
18797     */
18798    var testability = {};
18799
18800    /**
18801     * @name $$testability#findBindings
18802     *
18803     * @description
18804     * Returns an array of elements that are bound (via ng-bind or {{}})
18805     * to expressions matching the input.
18806     *
18807     * @param {Element} element The element root to search from.
18808     * @param {string} expression The binding expression to match.
18809     * @param {boolean} opt_exactMatch If true, only returns exact matches
18810     *     for the expression. Filters and whitespace are ignored.
18811     */
18812    testability.findBindings = function(element, expression, opt_exactMatch) {
18813      var bindings = element.getElementsByClassName('ng-binding');
18814      var matches = [];
18815      forEach(bindings, function(binding) {
18816        var dataBinding = angular.element(binding).data('$binding');
18817        if (dataBinding) {
18818          forEach(dataBinding, function(bindingName) {
18819            if (opt_exactMatch) {
18820              var matcher = new RegExp('(^|\\s)' + escapeForRegexp(expression) + '(\\s|\\||$)');
18821              if (matcher.test(bindingName)) {
18822                matches.push(binding);
18823              }
18824            } else {
18825              if (bindingName.indexOf(expression) != -1) {
18826                matches.push(binding);
18827              }
18828            }
18829          });
18830        }
18831      });
18832      return matches;
18833    };
18834
18835    /**
18836     * @name $$testability#findModels
18837     *
18838     * @description
18839     * Returns an array of elements that are two-way found via ng-model to
18840     * expressions matching the input.
18841     *
18842     * @param {Element} element The element root to search from.
18843     * @param {string} expression The model expression to match.
18844     * @param {boolean} opt_exactMatch If true, only returns exact matches
18845     *     for the expression.
18846     */
18847    testability.findModels = function(element, expression, opt_exactMatch) {
18848      var prefixes = ['ng-', 'data-ng-', 'ng\\:'];
18849      for (var p = 0; p < prefixes.length; ++p) {
18850        var attributeEquals = opt_exactMatch ? '=' : '*=';
18851        var selector = '[' + prefixes[p] + 'model' + attributeEquals + '"' + expression + '"]';
18852        var elements = element.querySelectorAll(selector);
18853        if (elements.length) {
18854          return elements;
18855        }
18856      }
18857    };
18858
18859    /**
18860     * @name $$testability#getLocation
18861     *
18862     * @description
18863     * Shortcut for getting the location in a browser agnostic way. Returns
18864     *     the path, search, and hash. (e.g. /path?a=b#hash)
18865     */
18866    testability.getLocation = function() {
18867      return $location.url();
18868    };
18869
18870    /**
18871     * @name $$testability#setLocation
18872     *
18873     * @description
18874     * Shortcut for navigating to a location without doing a full page reload.
18875     *
18876     * @param {string} url The location url (path, search and hash,
18877     *     e.g. /path?a=b#hash) to go to.
18878     */
18879    testability.setLocation = function(url) {
18880      if (url !== $location.url()) {
18881        $location.url(url);
18882        $rootScope.$digest();
18883      }
18884    };
18885
18886    /**
18887     * @name $$testability#whenStable
18888     *
18889     * @description
18890     * Calls the callback when $timeout and $http requests are completed.
18891     *
18892     * @param {function} callback
18893     */
18894    testability.whenStable = function(callback) {
18895      $browser.notifyWhenNoOutstandingRequests(callback);
18896    };
18897
18898    return testability;
18899  }];
18900}
18901
18902function $TimeoutProvider() {
18903  this.$get = ['$rootScope', '$browser', '$q', '$$q', '$exceptionHandler',
18904       function($rootScope,   $browser,   $q,   $$q,   $exceptionHandler) {
18905
18906    var deferreds = {};
18907
18908
18909     /**
18910      * @ngdoc service
18911      * @name $timeout
18912      *
18913      * @description
18914      * Angular's wrapper for `window.setTimeout`. The `fn` function is wrapped into a try/catch
18915      * block and delegates any exceptions to
18916      * {@link ng.$exceptionHandler $exceptionHandler} service.
18917      *
18918      * The return value of calling `$timeout` is a promise, which will be resolved when
18919      * the delay has passed and the timeout function, if provided, is executed.
18920      *
18921      * To cancel a timeout request, call `$timeout.cancel(promise)`.
18922      *
18923      * In tests you can use {@link ngMock.$timeout `$timeout.flush()`} to
18924      * synchronously flush the queue of deferred functions.
18925      *
18926      * If you only want a promise that will be resolved after some specified delay
18927      * then you can call `$timeout` without the `fn` function.
18928      *
18929      * @param {function()=} fn A function, whose execution should be delayed.
18930      * @param {number=} [delay=0] Delay in milliseconds.
18931      * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise
18932      *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.
18933      * @param {...*=} Pass additional parameters to the executed function.
18934      * @returns {Promise} Promise that will be resolved when the timeout is reached. The promise
18935      *   will be resolved with the return value of the `fn` function.
18936      *
18937      */
18938    function timeout(fn, delay, invokeApply) {
18939      if (!isFunction(fn)) {
18940        invokeApply = delay;
18941        delay = fn;
18942        fn = noop;
18943      }
18944
18945      var args = sliceArgs(arguments, 3),
18946          skipApply = (isDefined(invokeApply) && !invokeApply),
18947          deferred = (skipApply ? $$q : $q).defer(),
18948          promise = deferred.promise,
18949          timeoutId;
18950
18951      timeoutId = $browser.defer(function() {
18952        try {
18953          deferred.resolve(fn.apply(null, args));
18954        } catch (e) {
18955          deferred.reject(e);
18956          $exceptionHandler(e);
18957        }
18958        finally {
18959          delete deferreds[promise.$$timeoutId];
18960        }
18961
18962        if (!skipApply) $rootScope.$apply();
18963      }, delay);
18964
18965      promise.$$timeoutId = timeoutId;
18966      deferreds[timeoutId] = deferred;
18967
18968      return promise;
18969    }
18970
18971
18972     /**
18973      * @ngdoc method
18974      * @name $timeout#cancel
18975      *
18976      * @description
18977      * Cancels a task associated with the `promise`. As a result of this, the promise will be
18978      * resolved with a rejection.
18979      *
18980      * @param {Promise=} promise Promise returned by the `$timeout` function.
18981      * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully
18982      *   canceled.
18983      */
18984    timeout.cancel = function(promise) {
18985      if (promise && promise.$$timeoutId in deferreds) {
18986        deferreds[promise.$$timeoutId].reject('canceled');
18987        delete deferreds[promise.$$timeoutId];
18988        return $browser.defer.cancel(promise.$$timeoutId);
18989      }
18990      return false;
18991    };
18992
18993    return timeout;
18994  }];
18995}
18996
18997// NOTE:  The usage of window and document instead of $window and $document here is
18998// deliberate.  This service depends on the specific behavior of anchor nodes created by the
18999// browser (resolving and parsing URLs) that is unlikely to be provided by mock objects and
19000// cause us to break tests.  In addition, when the browser resolves a URL for XHR, it
19001// doesn't know about mocked locations and resolves URLs to the real document - which is
19002// exactly the behavior needed here.  There is little value is mocking these out for this
19003// service.
19004var urlParsingNode = document.createElement("a");
19005var originUrl = urlResolve(window.location.href);
19006
19007
19008/**
19009 *
19010 * Implementation Notes for non-IE browsers
19011 * ----------------------------------------
19012 * Assigning a URL to the href property of an anchor DOM node, even one attached to the DOM,
19013 * results both in the normalizing and parsing of the URL.  Normalizing means that a relative
19014 * URL will be resolved into an absolute URL in the context of the application document.
19015 * Parsing means that the anchor node's host, hostname, protocol, port, pathname and related
19016 * properties are all populated to reflect the normalized URL.  This approach has wide
19017 * compatibility - Safari 1+, Mozilla 1+, Opera 7+,e etc.  See
19018 * http://www.aptana.com/reference/html/api/HTMLAnchorElement.html
19019 *
19020 * Implementation Notes for IE
19021 * ---------------------------
19022 * IE <= 10 normalizes the URL when assigned to the anchor node similar to the other
19023 * browsers.  However, the parsed components will not be set if the URL assigned did not specify
19024 * them.  (e.g. if you assign a.href = "foo", then a.protocol, a.host, etc. will be empty.)  We
19025 * work around that by performing the parsing in a 2nd step by taking a previously normalized
19026 * URL (e.g. by assigning to a.href) and assigning it a.href again.  This correctly populates the
19027 * properties such as protocol, hostname, port, etc.
19028 *
19029 * References:
19030 *   http://developer.mozilla.org/en-US/docs/Web/API/HTMLAnchorElement
19031 *   http://www.aptana.com/reference/html/api/HTMLAnchorElement.html
19032 *   http://url.spec.whatwg.org/#urlutils
19033 *   https://github.com/angular/angular.js/pull/2902
19034 *   http://james.padolsey.com/javascript/parsing-urls-with-the-dom/
19035 *
19036 * @kind function
19037 * @param {string} url The URL to be parsed.
19038 * @description Normalizes and parses a URL.
19039 * @returns {object} Returns the normalized URL as a dictionary.
19040 *
19041 *   | member name   | Description    |
19042 *   |---------------|----------------|
19043 *   | href          | A normalized version of the provided URL if it was not an absolute URL |
19044 *   | protocol      | The protocol including the trailing colon                              |
19045 *   | host          | The host and port (if the port is non-default) of the normalizedUrl    |
19046 *   | search        | The search params, minus the question mark                             |
19047 *   | hash          | The hash string, minus the hash symbol
19048 *   | hostname      | The hostname
19049 *   | port          | The port, without ":"
19050 *   | pathname      | The pathname, beginning with "/"
19051 *
19052 */
19053function urlResolve(url) {
19054  var href = url;
19055
19056  if (msie) {
19057    // Normalize before parse.  Refer Implementation Notes on why this is
19058    // done in two steps on IE.
19059    urlParsingNode.setAttribute("href", href);
19060    href = urlParsingNode.href;
19061  }
19062
19063  urlParsingNode.setAttribute('href', href);
19064
19065  // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils
19066  return {
19067    href: urlParsingNode.href,
19068    protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',
19069    host: urlParsingNode.host,
19070    search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '',
19071    hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',
19072    hostname: urlParsingNode.hostname,
19073    port: urlParsingNode.port,
19074    pathname: (urlParsingNode.pathname.charAt(0) === '/')
19075      ? urlParsingNode.pathname
19076      : '/' + urlParsingNode.pathname
19077  };
19078}
19079
19080/**
19081 * Parse a request URL and determine whether this is a same-origin request as the application document.
19082 *
19083 * @param {string|object} requestUrl The url of the request as a string that will be resolved
19084 * or a parsed URL object.
19085 * @returns {boolean} Whether the request is for the same origin as the application document.
19086 */
19087function urlIsSameOrigin(requestUrl) {
19088  var parsed = (isString(requestUrl)) ? urlResolve(requestUrl) : requestUrl;
19089  return (parsed.protocol === originUrl.protocol &&
19090          parsed.host === originUrl.host);
19091}
19092
19093/**
19094 * @ngdoc service
19095 * @name $window
19096 *
19097 * @description
19098 * A reference to the browser's `window` object. While `window`
19099 * is globally available in JavaScript, it causes testability problems, because
19100 * it is a global variable. In angular we always refer to it through the
19101 * `$window` service, so it may be overridden, removed or mocked for testing.
19102 *
19103 * Expressions, like the one defined for the `ngClick` directive in the example
19104 * below, are evaluated with respect to the current scope.  Therefore, there is
19105 * no risk of inadvertently coding in a dependency on a global value in such an
19106 * expression.
19107 *
19108 * @example
19109   <example module="windowExample">
19110     <file name="index.html">
19111       <script>
19112         angular.module('windowExample', [])
19113           .controller('ExampleController', ['$scope', '$window', function($scope, $window) {
19114             $scope.greeting = 'Hello, World!';
19115             $scope.doGreeting = function(greeting) {
19116               $window.alert(greeting);
19117             };
19118           }]);
19119       </script>
19120       <div ng-controller="ExampleController">
19121         <input type="text" ng-model="greeting" aria-label="greeting" />
19122         <button ng-click="doGreeting(greeting)">ALERT</button>
19123       </div>
19124     </file>
19125     <file name="protractor.js" type="protractor">
19126      it('should display the greeting in the input box', function() {
19127       element(by.model('greeting')).sendKeys('Hello, E2E Tests');
19128       // If we click the button it will block the test runner
19129       // element(':button').click();
19130      });
19131     </file>
19132   </example>
19133 */
19134function $WindowProvider() {
19135  this.$get = valueFn(window);
19136}
19137
19138/**
19139 * @name $$cookieReader
19140 * @requires $document
19141 *
19142 * @description
19143 * This is a private service for reading cookies used by $http and ngCookies
19144 *
19145 * @return {Object} a key/value map of the current cookies
19146 */
19147function $$CookieReader($document) {
19148  var rawDocument = $document[0] || {};
19149  var lastCookies = {};
19150  var lastCookieString = '';
19151
19152  function safeDecodeURIComponent(str) {
19153    try {
19154      return decodeURIComponent(str);
19155    } catch (e) {
19156      return str;
19157    }
19158  }
19159
19160  return function() {
19161    var cookieArray, cookie, i, index, name;
19162    var currentCookieString = rawDocument.cookie || '';
19163
19164    if (currentCookieString !== lastCookieString) {
19165      lastCookieString = currentCookieString;
19166      cookieArray = lastCookieString.split('; ');
19167      lastCookies = {};
19168
19169      for (i = 0; i < cookieArray.length; i++) {
19170        cookie = cookieArray[i];
19171        index = cookie.indexOf('=');
19172        if (index > 0) { //ignore nameless cookies
19173          name = safeDecodeURIComponent(cookie.substring(0, index));
19174          // the first value that is seen for a cookie is the most
19175          // specific one.  values for the same cookie name that
19176          // follow are for less specific paths.
19177          if (isUndefined(lastCookies[name])) {
19178            lastCookies[name] = safeDecodeURIComponent(cookie.substring(index + 1));
19179          }
19180        }
19181      }
19182    }
19183    return lastCookies;
19184  };
19185}
19186
19187$$CookieReader.$inject = ['$document'];
19188
19189function $$CookieReaderProvider() {
19190  this.$get = $$CookieReader;
19191}
19192
19193/* global currencyFilter: true,
19194 dateFilter: true,
19195 filterFilter: true,
19196 jsonFilter: true,
19197 limitToFilter: true,
19198 lowercaseFilter: true,
19199 numberFilter: true,
19200 orderByFilter: true,
19201 uppercaseFilter: true,
19202 */
19203
19204/**
19205 * @ngdoc provider
19206 * @name $filterProvider
19207 * @description
19208 *
19209 * Filters are just functions which transform input to an output. However filters need to be
19210 * Dependency Injected. To achieve this a filter definition consists of a factory function which is
19211 * annotated with dependencies and is responsible for creating a filter function.
19212 *
19213 * <div class="alert alert-warning">
19214 * **Note:** Filter names must be valid angular {@link expression} identifiers, such as `uppercase` or `orderBy`.
19215 * Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace
19216 * your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores
19217 * (`myapp_subsection_filterx`).
19218 * </div>
19219 *
19220 * ```js
19221 *   // Filter registration
19222 *   function MyModule($provide, $filterProvider) {
19223 *     // create a service to demonstrate injection (not always needed)
19224 *     $provide.value('greet', function(name){
19225 *       return 'Hello ' + name + '!';
19226 *     });
19227 *
19228 *     // register a filter factory which uses the
19229 *     // greet service to demonstrate DI.
19230 *     $filterProvider.register('greet', function(greet){
19231 *       // return the filter function which uses the greet service
19232 *       // to generate salutation
19233 *       return function(text) {
19234 *         // filters need to be forgiving so check input validity
19235 *         return text && greet(text) || text;
19236 *       };
19237 *     });
19238 *   }
19239 * ```
19240 *
19241 * The filter function is registered with the `$injector` under the filter name suffix with
19242 * `Filter`.
19243 *
19244 * ```js
19245 *   it('should be the same instance', inject(
19246 *     function($filterProvider) {
19247 *       $filterProvider.register('reverse', function(){
19248 *         return ...;
19249 *       });
19250 *     },
19251 *     function($filter, reverseFilter) {
19252 *       expect($filter('reverse')).toBe(reverseFilter);
19253 *     });
19254 * ```
19255 *
19256 *
19257 * For more information about how angular filters work, and how to create your own filters, see
19258 * {@link guide/filter Filters} in the Angular Developer Guide.
19259 */
19260
19261/**
19262 * @ngdoc service
19263 * @name $filter
19264 * @kind function
19265 * @description
19266 * Filters are used for formatting data displayed to the user.
19267 *
19268 * The general syntax in templates is as follows:
19269 *
19270 *         {{ expression [| filter_name[:parameter_value] ... ] }}
19271 *
19272 * @param {String} name Name of the filter function to retrieve
19273 * @return {Function} the filter function
19274 * @example
19275   <example name="$filter" module="filterExample">
19276     <file name="index.html">
19277       <div ng-controller="MainCtrl">
19278        <h3>{{ originalText }}</h3>
19279        <h3>{{ filteredText }}</h3>
19280       </div>
19281     </file>
19282
19283     <file name="script.js">
19284      angular.module('filterExample', [])
19285      .controller('MainCtrl', function($scope, $filter) {
19286        $scope.originalText = 'hello';
19287        $scope.filteredText = $filter('uppercase')($scope.originalText);
19288      });
19289     </file>
19290   </example>
19291  */
19292$FilterProvider.$inject = ['$provide'];
19293function $FilterProvider($provide) {
19294  var suffix = 'Filter';
19295
19296  /**
19297   * @ngdoc method
19298   * @name $filterProvider#register
19299   * @param {string|Object} name Name of the filter function, or an object map of filters where
19300   *    the keys are the filter names and the values are the filter factories.
19301   *
19302   *    <div class="alert alert-warning">
19303   *    **Note:** Filter names must be valid angular {@link expression} identifiers, such as `uppercase` or `orderBy`.
19304   *    Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace
19305   *    your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores
19306   *    (`myapp_subsection_filterx`).
19307   *    </div>
19308    * @param {Function} factory If the first argument was a string, a factory function for the filter to be registered.
19309   * @returns {Object} Registered filter instance, or if a map of filters was provided then a map
19310   *    of the registered filter instances.
19311   */
19312  function register(name, factory) {
19313    if (isObject(name)) {
19314      var filters = {};
19315      forEach(name, function(filter, key) {
19316        filters[key] = register(key, filter);
19317      });
19318      return filters;
19319    } else {
19320      return $provide.factory(name + suffix, factory);
19321    }
19322  }
19323  this.register = register;
19324
19325  this.$get = ['$injector', function($injector) {
19326    return function(name) {
19327      return $injector.get(name + suffix);
19328    };
19329  }];
19330
19331  ////////////////////////////////////////
19332
19333  /* global
19334    currencyFilter: false,
19335    dateFilter: false,
19336    filterFilter: false,
19337    jsonFilter: false,
19338    limitToFilter: false,
19339    lowercaseFilter: false,
19340    numberFilter: false,
19341    orderByFilter: false,
19342    uppercaseFilter: false,
19343  */
19344
19345  register('currency', currencyFilter);
19346  register('date', dateFilter);
19347  register('filter', filterFilter);
19348  register('json', jsonFilter);
19349  register('limitTo', limitToFilter);
19350  register('lowercase', lowercaseFilter);
19351  register('number', numberFilter);
19352  register('orderBy', orderByFilter);
19353  register('uppercase', uppercaseFilter);
19354}
19355
19356/**
19357 * @ngdoc filter
19358 * @name filter
19359 * @kind function
19360 *
19361 * @description
19362 * Selects a subset of items from `array` and returns it as a new array.
19363 *
19364 * @param {Array} array The source array.
19365 * @param {string|Object|function()} expression The predicate to be used for selecting items from
19366 *   `array`.
19367 *
19368 *   Can be one of:
19369 *
19370 *   - `string`: The string is used for matching against the contents of the `array`. All strings or
19371 *     objects with string properties in `array` that match this string will be returned. This also
19372 *     applies to nested object properties.
19373 *     The predicate can be negated by prefixing the string with `!`.
19374 *
19375 *   - `Object`: A pattern object can be used to filter specific properties on objects contained
19376 *     by `array`. For example `{name:"M", phone:"1"}` predicate will return an array of items
19377 *     which have property `name` containing "M" and property `phone` containing "1". A special
19378 *     property name `$` can be used (as in `{$:"text"}`) to accept a match against any
19379 *     property of the object or its nested object properties. That's equivalent to the simple
19380 *     substring match with a `string` as described above. The predicate can be negated by prefixing
19381 *     the string with `!`.
19382 *     For example `{name: "!M"}` predicate will return an array of items which have property `name`
19383 *     not containing "M".
19384 *
19385 *     Note that a named property will match properties on the same level only, while the special
19386 *     `$` property will match properties on the same level or deeper. E.g. an array item like
19387 *     `{name: {first: 'John', last: 'Doe'}}` will **not** be matched by `{name: 'John'}`, but
19388 *     **will** be matched by `{$: 'John'}`.
19389 *
19390 *   - `function(value, index, array)`: A predicate function can be used to write arbitrary filters.
19391 *     The function is called for each element of the array, with the element, its index, and
19392 *     the entire array itself as arguments.
19393 *
19394 *     The final result is an array of those elements that the predicate returned true for.
19395 *
19396 * @param {function(actual, expected)|true|undefined} comparator Comparator which is used in
19397 *     determining if the expected value (from the filter expression) and actual value (from
19398 *     the object in the array) should be considered a match.
19399 *
19400 *   Can be one of:
19401 *
19402 *   - `function(actual, expected)`:
19403 *     The function will be given the object value and the predicate value to compare and
19404 *     should return true if both values should be considered equal.
19405 *
19406 *   - `true`: A shorthand for `function(actual, expected) { return angular.equals(actual, expected)}`.
19407 *     This is essentially strict comparison of expected and actual.
19408 *
19409 *   - `false|undefined`: A short hand for a function which will look for a substring match in case
19410 *     insensitive way.
19411 *
19412 *     Primitive values are converted to strings. Objects are not compared against primitives,
19413 *     unless they have a custom `toString` method (e.g. `Date` objects).
19414 *
19415 * @example
19416   <example>
19417     <file name="index.html">
19418       <div ng-init="friends = [{name:'John', phone:'555-1276'},
19419                                {name:'Mary', phone:'800-BIG-MARY'},
19420                                {name:'Mike', phone:'555-4321'},
19421                                {name:'Adam', phone:'555-5678'},
19422                                {name:'Julie', phone:'555-8765'},
19423                                {name:'Juliette', phone:'555-5678'}]"></div>
19424
19425       <label>Search: <input ng-model="searchText"></label>
19426       <table id="searchTextResults">
19427         <tr><th>Name</th><th>Phone</th></tr>
19428         <tr ng-repeat="friend in friends | filter:searchText">
19429           <td>{{friend.name}}</td>
19430           <td>{{friend.phone}}</td>
19431         </tr>
19432       </table>
19433       <hr>
19434       <label>Any: <input ng-model="search.$"></label> <br>
19435       <label>Name only <input ng-model="search.name"></label><br>
19436       <label>Phone only <input ng-model="search.phone"></label><br>
19437       <label>Equality <input type="checkbox" ng-model="strict"></label><br>
19438       <table id="searchObjResults">
19439         <tr><th>Name</th><th>Phone</th></tr>
19440         <tr ng-repeat="friendObj in friends | filter:search:strict">
19441           <td>{{friendObj.name}}</td>
19442           <td>{{friendObj.phone}}</td>
19443         </tr>
19444       </table>
19445     </file>
19446     <file name="protractor.js" type="protractor">
19447       var expectFriendNames = function(expectedNames, key) {
19448         element.all(by.repeater(key + ' in friends').column(key + '.name')).then(function(arr) {
19449           arr.forEach(function(wd, i) {
19450             expect(wd.getText()).toMatch(expectedNames[i]);
19451           });
19452         });
19453       };
19454
19455       it('should search across all fields when filtering with a string', function() {
19456         var searchText = element(by.model('searchText'));
19457         searchText.clear();
19458         searchText.sendKeys('m');
19459         expectFriendNames(['Mary', 'Mike', 'Adam'], 'friend');
19460
19461         searchText.clear();
19462         searchText.sendKeys('76');
19463         expectFriendNames(['John', 'Julie'], 'friend');
19464       });
19465
19466       it('should search in specific fields when filtering with a predicate object', function() {
19467         var searchAny = element(by.model('search.$'));
19468         searchAny.clear();
19469         searchAny.sendKeys('i');
19470         expectFriendNames(['Mary', 'Mike', 'Julie', 'Juliette'], 'friendObj');
19471       });
19472       it('should use a equal comparison when comparator is true', function() {
19473         var searchName = element(by.model('search.name'));
19474         var strict = element(by.model('strict'));
19475         searchName.clear();
19476         searchName.sendKeys('Julie');
19477         strict.click();
19478         expectFriendNames(['Julie'], 'friendObj');
19479       });
19480     </file>
19481   </example>
19482 */
19483function filterFilter() {
19484  return function(array, expression, comparator) {
19485    if (!isArrayLike(array)) {
19486      if (array == null) {
19487        return array;
19488      } else {
19489        throw minErr('filter')('notarray', 'Expected array but received: {0}', array);
19490      }
19491    }
19492
19493    var expressionType = getTypeForFilter(expression);
19494    var predicateFn;
19495    var matchAgainstAnyProp;
19496
19497    switch (expressionType) {
19498      case 'function':
19499        predicateFn = expression;
19500        break;
19501      case 'boolean':
19502      case 'null':
19503      case 'number':
19504      case 'string':
19505        matchAgainstAnyProp = true;
19506        //jshint -W086
19507      case 'object':
19508        //jshint +W086
19509        predicateFn = createPredicateFn(expression, comparator, matchAgainstAnyProp);
19510        break;
19511      default:
19512        return array;
19513    }
19514
19515    return Array.prototype.filter.call(array, predicateFn);
19516  };
19517}
19518
19519// Helper functions for `filterFilter`
19520function createPredicateFn(expression, comparator, matchAgainstAnyProp) {
19521  var shouldMatchPrimitives = isObject(expression) && ('$' in expression);
19522  var predicateFn;
19523
19524  if (comparator === true) {
19525    comparator = equals;
19526  } else if (!isFunction(comparator)) {
19527    comparator = function(actual, expected) {
19528      if (isUndefined(actual)) {
19529        // No substring matching against `undefined`
19530        return false;
19531      }
19532      if ((actual === null) || (expected === null)) {
19533        // No substring matching against `null`; only match against `null`
19534        return actual === expected;
19535      }
19536      if (isObject(expected) || (isObject(actual) && !hasCustomToString(actual))) {
19537        // Should not compare primitives against objects, unless they have custom `toString` method
19538        return false;
19539      }
19540
19541      actual = lowercase('' + actual);
19542      expected = lowercase('' + expected);
19543      return actual.indexOf(expected) !== -1;
19544    };
19545  }
19546
19547  predicateFn = function(item) {
19548    if (shouldMatchPrimitives && !isObject(item)) {
19549      return deepCompare(item, expression.$, comparator, false);
19550    }
19551    return deepCompare(item, expression, comparator, matchAgainstAnyProp);
19552  };
19553
19554  return predicateFn;
19555}
19556
19557function deepCompare(actual, expected, comparator, matchAgainstAnyProp, dontMatchWholeObject) {
19558  var actualType = getTypeForFilter(actual);
19559  var expectedType = getTypeForFilter(expected);
19560
19561  if ((expectedType === 'string') && (expected.charAt(0) === '!')) {
19562    return !deepCompare(actual, expected.substring(1), comparator, matchAgainstAnyProp);
19563  } else if (isArray(actual)) {
19564    // In case `actual` is an array, consider it a match
19565    // if ANY of it's items matches `expected`
19566    return actual.some(function(item) {
19567      return deepCompare(item, expected, comparator, matchAgainstAnyProp);
19568    });
19569  }
19570
19571  switch (actualType) {
19572    case 'object':
19573      var key;
19574      if (matchAgainstAnyProp) {
19575        for (key in actual) {
19576          if ((key.charAt(0) !== '$') && deepCompare(actual[key], expected, comparator, true)) {
19577            return true;
19578          }
19579        }
19580        return dontMatchWholeObject ? false : deepCompare(actual, expected, comparator, false);
19581      } else if (expectedType === 'object') {
19582        for (key in expected) {
19583          var expectedVal = expected[key];
19584          if (isFunction(expectedVal) || isUndefined(expectedVal)) {
19585            continue;
19586          }
19587
19588          var matchAnyProperty = key === '$';
19589          var actualVal = matchAnyProperty ? actual : actual[key];
19590          if (!deepCompare(actualVal, expectedVal, comparator, matchAnyProperty, matchAnyProperty)) {
19591            return false;
19592          }
19593        }
19594        return true;
19595      } else {
19596        return comparator(actual, expected);
19597      }
19598      break;
19599    case 'function':
19600      return false;
19601    default:
19602      return comparator(actual, expected);
19603  }
19604}
19605
19606// Used for easily differentiating between `null` and actual `object`
19607function getTypeForFilter(val) {
19608  return (val === null) ? 'null' : typeof val;
19609}
19610
19611var MAX_DIGITS = 22;
19612var DECIMAL_SEP = '.';
19613var ZERO_CHAR = '0';
19614
19615/**
19616 * @ngdoc filter
19617 * @name currency
19618 * @kind function
19619 *
19620 * @description
19621 * Formats a number as a currency (ie $1,234.56). When no currency symbol is provided, default
19622 * symbol for current locale is used.
19623 *
19624 * @param {number} amount Input to filter.
19625 * @param {string=} symbol Currency symbol or identifier to be displayed.
19626 * @param {number=} fractionSize Number of decimal places to round the amount to, defaults to default max fraction size for current locale
19627 * @returns {string} Formatted number.
19628 *
19629 *
19630 * @example
19631   <example module="currencyExample">
19632     <file name="index.html">
19633       <script>
19634         angular.module('currencyExample', [])
19635           .controller('ExampleController', ['$scope', function($scope) {
19636             $scope.amount = 1234.56;
19637           }]);
19638       </script>
19639       <div ng-controller="ExampleController">
19640         <input type="number" ng-model="amount" aria-label="amount"> <br>
19641         default currency symbol ($): <span id="currency-default">{{amount | currency}}</span><br>
19642         custom currency identifier (USD$): <span id="currency-custom">{{amount | currency:"USD$"}}</span>
19643         no fractions (0): <span id="currency-no-fractions">{{amount | currency:"USD$":0}}</span>
19644       </div>
19645     </file>
19646     <file name="protractor.js" type="protractor">
19647       it('should init with 1234.56', function() {
19648         expect(element(by.id('currency-default')).getText()).toBe('$1,234.56');
19649         expect(element(by.id('currency-custom')).getText()).toBe('USD$1,234.56');
19650         expect(element(by.id('currency-no-fractions')).getText()).toBe('USD$1,235');
19651       });
19652       it('should update', function() {
19653         if (browser.params.browser == 'safari') {
19654           // Safari does not understand the minus key. See
19655           // https://github.com/angular/protractor/issues/481
19656           return;
19657         }
19658         element(by.model('amount')).clear();
19659         element(by.model('amount')).sendKeys('-1234');
19660         expect(element(by.id('currency-default')).getText()).toBe('-$1,234.00');
19661         expect(element(by.id('currency-custom')).getText()).toBe('-USD$1,234.00');
19662         expect(element(by.id('currency-no-fractions')).getText()).toBe('-USD$1,234');
19663       });
19664     </file>
19665   </example>
19666 */
19667currencyFilter.$inject = ['$locale'];
19668function currencyFilter($locale) {
19669  var formats = $locale.NUMBER_FORMATS;
19670  return function(amount, currencySymbol, fractionSize) {
19671    if (isUndefined(currencySymbol)) {
19672      currencySymbol = formats.CURRENCY_SYM;
19673    }
19674
19675    if (isUndefined(fractionSize)) {
19676      fractionSize = formats.PATTERNS[1].maxFrac;
19677    }
19678
19679    // if null or undefined pass it through
19680    return (amount == null)
19681        ? amount
19682        : formatNumber(amount, formats.PATTERNS[1], formats.GROUP_SEP, formats.DECIMAL_SEP, fractionSize).
19683            replace(/\u00A4/g, currencySymbol);
19684  };
19685}
19686
19687/**
19688 * @ngdoc filter
19689 * @name number
19690 * @kind function
19691 *
19692 * @description
19693 * Formats a number as text.
19694 *
19695 * If the input is null or undefined, it will just be returned.
19696 * If the input is infinite (Infinity or -Infinity), the Infinity symbol '∞' or '-∞' is returned, respectively.
19697 * If the input is not a number an empty string is returned.
19698 *
19699 *
19700 * @param {number|string} number Number to format.
19701 * @param {(number|string)=} fractionSize Number of decimal places to round the number to.
19702 * If this is not provided then the fraction size is computed from the current locale's number
19703 * formatting pattern. In the case of the default locale, it will be 3.
19704 * @returns {string} Number rounded to fractionSize and places a “,” after each third digit.
19705 *
19706 * @example
19707   <example module="numberFilterExample">
19708     <file name="index.html">
19709       <script>
19710         angular.module('numberFilterExample', [])
19711           .controller('ExampleController', ['$scope', function($scope) {
19712             $scope.val = 1234.56789;
19713           }]);
19714       </script>
19715       <div ng-controller="ExampleController">
19716         <label>Enter number: <input ng-model='val'></label><br>
19717         Default formatting: <span id='number-default'>{{val | number}}</span><br>
19718         No fractions: <span>{{val | number:0}}</span><br>
19719         Negative number: <span>{{-val | number:4}}</span>
19720       </div>
19721     </file>
19722     <file name="protractor.js" type="protractor">
19723       it('should format numbers', function() {
19724         expect(element(by.id('number-default')).getText()).toBe('1,234.568');
19725         expect(element(by.binding('val | number:0')).getText()).toBe('1,235');
19726         expect(element(by.binding('-val | number:4')).getText()).toBe('-1,234.5679');
19727       });
19728
19729       it('should update', function() {
19730         element(by.model('val')).clear();
19731         element(by.model('val')).sendKeys('3374.333');
19732         expect(element(by.id('number-default')).getText()).toBe('3,374.333');
19733         expect(element(by.binding('val | number:0')).getText()).toBe('3,374');
19734         expect(element(by.binding('-val | number:4')).getText()).toBe('-3,374.3330');
19735      });
19736     </file>
19737   </example>
19738 */
19739numberFilter.$inject = ['$locale'];
19740function numberFilter($locale) {
19741  var formats = $locale.NUMBER_FORMATS;
19742  return function(number, fractionSize) {
19743
19744    // if null or undefined pass it through
19745    return (number == null)
19746        ? number
19747        : formatNumber(number, formats.PATTERNS[0], formats.GROUP_SEP, formats.DECIMAL_SEP,
19748                       fractionSize);
19749  };
19750}
19751
19752/**
19753 * Parse a number (as a string) into three components that can be used
19754 * for formatting the number.
19755 *
19756 * (Significant bits of this parse algorithm came from https://github.com/MikeMcl/big.js/)
19757 *
19758 * @param  {string} numStr The number to parse
19759 * @return {object} An object describing this number, containing the following keys:
19760 *  - d : an array of digits containing leading zeros as necessary
19761 *  - i : the number of the digits in `d` that are to the left of the decimal point
19762 *  - e : the exponent for numbers that would need more than `MAX_DIGITS` digits in `d`
19763 *
19764 */
19765function parse(numStr) {
19766  var exponent = 0, digits, numberOfIntegerDigits;
19767  var i, j, zeros;
19768
19769  // Decimal point?
19770  if ((numberOfIntegerDigits = numStr.indexOf(DECIMAL_SEP)) > -1) {
19771    numStr = numStr.replace(DECIMAL_SEP, '');
19772  }
19773
19774  // Exponential form?
19775  if ((i = numStr.search(/e/i)) > 0) {
19776    // Work out the exponent.
19777    if (numberOfIntegerDigits < 0) numberOfIntegerDigits = i;
19778    numberOfIntegerDigits += +numStr.slice(i + 1);
19779    numStr = numStr.substring(0, i);
19780  } else if (numberOfIntegerDigits < 0) {
19781    // There was no decimal point or exponent so it is an integer.
19782    numberOfIntegerDigits = numStr.length;
19783  }
19784
19785  // Count the number of leading zeros.
19786  for (i = 0; numStr.charAt(i) == ZERO_CHAR; i++) {/* jshint noempty: false */}
19787
19788  if (i == (zeros = numStr.length)) {
19789    // The digits are all zero.
19790    digits = [0];
19791    numberOfIntegerDigits = 1;
19792  } else {
19793    // Count the number of trailing zeros
19794    zeros--;
19795    while (numStr.charAt(zeros) == ZERO_CHAR) zeros--;
19796
19797    // Trailing zeros are insignificant so ignore them
19798    numberOfIntegerDigits -= i;
19799    digits = [];
19800    // Convert string to array of digits without leading/trailing zeros.
19801    for (j = 0; i <= zeros; i++, j++) {
19802      digits[j] = +numStr.charAt(i);
19803    }
19804  }
19805
19806  // If the number overflows the maximum allowed digits then use an exponent.
19807  if (numberOfIntegerDigits > MAX_DIGITS) {
19808    digits = digits.splice(0, MAX_DIGITS - 1);
19809    exponent = numberOfIntegerDigits - 1;
19810    numberOfIntegerDigits = 1;
19811  }
19812
19813  return { d: digits, e: exponent, i: numberOfIntegerDigits };
19814}
19815
19816/**
19817 * Round the parsed number to the specified number of decimal places
19818 * This function changed the parsedNumber in-place
19819 */
19820function roundNumber(parsedNumber, fractionSize, minFrac, maxFrac) {
19821    var digits = parsedNumber.d;
19822    var fractionLen = digits.length - parsedNumber.i;
19823
19824    // determine fractionSize if it is not specified; `+fractionSize` converts it to a number
19825    fractionSize = (isUndefined(fractionSize)) ? Math.min(Math.max(minFrac, fractionLen), maxFrac) : +fractionSize;
19826
19827    // The index of the digit to where rounding is to occur
19828    var roundAt = fractionSize + parsedNumber.i;
19829    var digit = digits[roundAt];
19830
19831    if (roundAt > 0) {
19832      // Drop fractional digits beyond `roundAt`
19833      digits.splice(Math.max(parsedNumber.i, roundAt));
19834
19835      // Set non-fractional digits beyond `roundAt` to 0
19836      for (var j = roundAt; j < digits.length; j++) {
19837        digits[j] = 0;
19838      }
19839    } else {
19840      // We rounded to zero so reset the parsedNumber
19841      fractionLen = Math.max(0, fractionLen);
19842      parsedNumber.i = 1;
19843      digits.length = Math.max(1, roundAt = fractionSize + 1);
19844      digits[0] = 0;
19845      for (var i = 1; i < roundAt; i++) digits[i] = 0;
19846    }
19847
19848    if (digit >= 5) {
19849      if (roundAt - 1 < 0) {
19850        for (var k = 0; k > roundAt; k--) {
19851          digits.unshift(0);
19852          parsedNumber.i++;
19853        }
19854        digits.unshift(1);
19855        parsedNumber.i++;
19856      } else {
19857        digits[roundAt - 1]++;
19858      }
19859    }
19860
19861    // Pad out with zeros to get the required fraction length
19862    for (; fractionLen < Math.max(0, fractionSize); fractionLen++) digits.push(0);
19863
19864
19865    // Do any carrying, e.g. a digit was rounded up to 10
19866    var carry = digits.reduceRight(function(carry, d, i, digits) {
19867      d = d + carry;
19868      digits[i] = d % 10;
19869      return Math.floor(d / 10);
19870    }, 0);
19871    if (carry) {
19872      digits.unshift(carry);
19873      parsedNumber.i++;
19874    }
19875}
19876
19877/**
19878 * Format a number into a string
19879 * @param  {number} number       The number to format
19880 * @param  {{
19881 *           minFrac, // the minimum number of digits required in the fraction part of the number
19882 *           maxFrac, // the maximum number of digits required in the fraction part of the number
19883 *           gSize,   // number of digits in each group of separated digits
19884 *           lgSize,  // number of digits in the last group of digits before the decimal separator
19885 *           negPre,  // the string to go in front of a negative number (e.g. `-` or `(`))
19886 *           posPre,  // the string to go in front of a positive number
19887 *           negSuf,  // the string to go after a negative number (e.g. `)`)
19888 *           posSuf   // the string to go after a positive number
19889 *         }} pattern
19890 * @param  {string} groupSep     The string to separate groups of number (e.g. `,`)
19891 * @param  {string} decimalSep   The string to act as the decimal separator (e.g. `.`)
19892 * @param  {[type]} fractionSize The size of the fractional part of the number
19893 * @return {string}              The number formatted as a string
19894 */
19895function formatNumber(number, pattern, groupSep, decimalSep, fractionSize) {
19896
19897  if (!(isString(number) || isNumber(number)) || isNaN(number)) return '';
19898
19899  var isInfinity = !isFinite(number);
19900  var isZero = false;
19901  var numStr = Math.abs(number) + '',
19902      formattedText = '',
19903      parsedNumber;
19904
19905  if (isInfinity) {
19906    formattedText = '\u221e';
19907  } else {
19908    parsedNumber = parse(numStr);
19909
19910    roundNumber(parsedNumber, fractionSize, pattern.minFrac, pattern.maxFrac);
19911
19912    var digits = parsedNumber.d;
19913    var integerLen = parsedNumber.i;
19914    var exponent = parsedNumber.e;
19915    var decimals = [];
19916    isZero = digits.reduce(function(isZero, d) { return isZero && !d; }, true);
19917
19918    // pad zeros for small numbers
19919    while (integerLen < 0) {
19920      digits.unshift(0);
19921      integerLen++;
19922    }
19923
19924    // extract decimals digits
19925    if (integerLen > 0) {
19926      decimals = digits.splice(integerLen);
19927    } else {
19928      decimals = digits;
19929      digits = [0];
19930    }
19931
19932    // format the integer digits with grouping separators
19933    var groups = [];
19934    if (digits.length >= pattern.lgSize) {
19935      groups.unshift(digits.splice(-pattern.lgSize).join(''));
19936    }
19937    while (digits.length > pattern.gSize) {
19938      groups.unshift(digits.splice(-pattern.gSize).join(''));
19939    }
19940    if (digits.length) {
19941      groups.unshift(digits.join(''));
19942    }
19943    formattedText = groups.join(groupSep);
19944
19945    // append the decimal digits
19946    if (decimals.length) {
19947      formattedText += decimalSep + decimals.join('');
19948    }
19949
19950    if (exponent) {
19951      formattedText += 'e+' + exponent;
19952    }
19953  }
19954  if (number < 0 && !isZero) {
19955    return pattern.negPre + formattedText + pattern.negSuf;
19956  } else {
19957    return pattern.posPre + formattedText + pattern.posSuf;
19958  }
19959}
19960
19961function padNumber(num, digits, trim, negWrap) {
19962  var neg = '';
19963  if (num < 0 || (negWrap && num <= 0)) {
19964    if (negWrap) {
19965      num = -num + 1;
19966    } else {
19967      num = -num;
19968      neg = '-';
19969    }
19970  }
19971  num = '' + num;
19972  while (num.length < digits) num = ZERO_CHAR + num;
19973  if (trim) {
19974    num = num.substr(num.length - digits);
19975  }
19976  return neg + num;
19977}
19978
19979
19980function dateGetter(name, size, offset, trim, negWrap) {
19981  offset = offset || 0;
19982  return function(date) {
19983    var value = date['get' + name]();
19984    if (offset > 0 || value > -offset) {
19985      value += offset;
19986    }
19987    if (value === 0 && offset == -12) value = 12;
19988    return padNumber(value, size, trim, negWrap);
19989  };
19990}
19991
19992function dateStrGetter(name, shortForm, standAlone) {
19993  return function(date, formats) {
19994    var value = date['get' + name]();
19995    var propPrefix = (standAlone ? 'STANDALONE' : '') + (shortForm ? 'SHORT' : '');
19996    var get = uppercase(propPrefix + name);
19997
19998    return formats[get][value];
19999  };
20000}
20001
20002function timeZoneGetter(date, formats, offset) {
20003  var zone = -1 * offset;
20004  var paddedZone = (zone >= 0) ? "+" : "";
20005
20006  paddedZone += padNumber(Math[zone > 0 ? 'floor' : 'ceil'](zone / 60), 2) +
20007                padNumber(Math.abs(zone % 60), 2);
20008
20009  return paddedZone;
20010}
20011
20012function getFirstThursdayOfYear(year) {
20013    // 0 = index of January
20014    var dayOfWeekOnFirst = (new Date(year, 0, 1)).getDay();
20015    // 4 = index of Thursday (+1 to account for 1st = 5)
20016    // 11 = index of *next* Thursday (+1 account for 1st = 12)
20017    return new Date(year, 0, ((dayOfWeekOnFirst <= 4) ? 5 : 12) - dayOfWeekOnFirst);
20018}
20019
20020function getThursdayThisWeek(datetime) {
20021    return new Date(datetime.getFullYear(), datetime.getMonth(),
20022      // 4 = index of Thursday
20023      datetime.getDate() + (4 - datetime.getDay()));
20024}
20025
20026function weekGetter(size) {
20027   return function(date) {
20028      var firstThurs = getFirstThursdayOfYear(date.getFullYear()),
20029         thisThurs = getThursdayThisWeek(date);
20030
20031      var diff = +thisThurs - +firstThurs,
20032         result = 1 + Math.round(diff / 6.048e8); // 6.048e8 ms per week
20033
20034      return padNumber(result, size);
20035   };
20036}
20037
20038function ampmGetter(date, formats) {
20039  return date.getHours() < 12 ? formats.AMPMS[0] : formats.AMPMS[1];
20040}
20041
20042function eraGetter(date, formats) {
20043  return date.getFullYear() <= 0 ? formats.ERAS[0] : formats.ERAS[1];
20044}
20045
20046function longEraGetter(date, formats) {
20047  return date.getFullYear() <= 0 ? formats.ERANAMES[0] : formats.ERANAMES[1];
20048}
20049
20050var DATE_FORMATS = {
20051  yyyy: dateGetter('FullYear', 4, 0, false, true),
20052    yy: dateGetter('FullYear', 2, 0, true, true),
20053     y: dateGetter('FullYear', 1, 0, false, true),
20054  MMMM: dateStrGetter('Month'),
20055   MMM: dateStrGetter('Month', true),
20056    MM: dateGetter('Month', 2, 1),
20057     M: dateGetter('Month', 1, 1),
20058  LLLL: dateStrGetter('Month', false, true),
20059    dd: dateGetter('Date', 2),
20060     d: dateGetter('Date', 1),
20061    HH: dateGetter('Hours', 2),
20062     H: dateGetter('Hours', 1),
20063    hh: dateGetter('Hours', 2, -12),
20064     h: dateGetter('Hours', 1, -12),
20065    mm: dateGetter('Minutes', 2),
20066     m: dateGetter('Minutes', 1),
20067    ss: dateGetter('Seconds', 2),
20068     s: dateGetter('Seconds', 1),
20069     // while ISO 8601 requires fractions to be prefixed with `.` or `,`
20070     // we can be just safely rely on using `sss` since we currently don't support single or two digit fractions
20071   sss: dateGetter('Milliseconds', 3),
20072  EEEE: dateStrGetter('Day'),
20073   EEE: dateStrGetter('Day', true),
20074     a: ampmGetter,
20075     Z: timeZoneGetter,
20076    ww: weekGetter(2),
20077     w: weekGetter(1),
20078     G: eraGetter,
20079     GG: eraGetter,
20080     GGG: eraGetter,
20081     GGGG: longEraGetter
20082};
20083
20084var DATE_FORMATS_SPLIT = /((?:[^yMLdHhmsaZEwG']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|L+|d+|H+|h+|m+|s+|a|Z|G+|w+))(.*)/,
20085    NUMBER_STRING = /^\-?\d+$/;
20086
20087/**
20088 * @ngdoc filter
20089 * @name date
20090 * @kind function
20091 *
20092 * @description
20093 *   Formats `date` to a string based on the requested `format`.
20094 *
20095 *   `format` string can be composed of the following elements:
20096 *
20097 *   * `'yyyy'`: 4 digit representation of year (e.g. AD 1 => 0001, AD 2010 => 2010)
20098 *   * `'yy'`: 2 digit representation of year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10)
20099 *   * `'y'`: 1 digit representation of year, e.g. (AD 1 => 1, AD 199 => 199)
20100 *   * `'MMMM'`: Month in year (January-December)
20101 *   * `'MMM'`: Month in year (Jan-Dec)
20102 *   * `'MM'`: Month in year, padded (01-12)
20103 *   * `'M'`: Month in year (1-12)
20104 *   * `'LLLL'`: Stand-alone month in year (January-December)
20105 *   * `'dd'`: Day in month, padded (01-31)
20106 *   * `'d'`: Day in month (1-31)
20107 *   * `'EEEE'`: Day in Week,(Sunday-Saturday)
20108 *   * `'EEE'`: Day in Week, (Sun-Sat)
20109 *   * `'HH'`: Hour in day, padded (00-23)
20110 *   * `'H'`: Hour in day (0-23)
20111 *   * `'hh'`: Hour in AM/PM, padded (01-12)
20112 *   * `'h'`: Hour in AM/PM, (1-12)
20113 *   * `'mm'`: Minute in hour, padded (00-59)
20114 *   * `'m'`: Minute in hour (0-59)
20115 *   * `'ss'`: Second in minute, padded (00-59)
20116 *   * `'s'`: Second in minute (0-59)
20117 *   * `'sss'`: Millisecond in second, padded (000-999)
20118 *   * `'a'`: AM/PM marker
20119 *   * `'Z'`: 4 digit (+sign) representation of the timezone offset (-1200-+1200)
20120 *   * `'ww'`: Week of year, padded (00-53). Week 01 is the week with the first Thursday of the year
20121 *   * `'w'`: Week of year (0-53). Week 1 is the week with the first Thursday of the year
20122 *   * `'G'`, `'GG'`, `'GGG'`: The abbreviated form of the era string (e.g. 'AD')
20123 *   * `'GGGG'`: The long form of the era string (e.g. 'Anno Domini')
20124 *
20125 *   `format` string can also be one of the following predefined
20126 *   {@link guide/i18n localizable formats}:
20127 *
20128 *   * `'medium'`: equivalent to `'MMM d, y h:mm:ss a'` for en_US locale
20129 *     (e.g. Sep 3, 2010 12:05:08 PM)
20130 *   * `'short'`: equivalent to `'M/d/yy h:mm a'` for en_US  locale (e.g. 9/3/10 12:05 PM)
20131 *   * `'fullDate'`: equivalent to `'EEEE, MMMM d, y'` for en_US  locale
20132 *     (e.g. Friday, September 3, 2010)
20133 *   * `'longDate'`: equivalent to `'MMMM d, y'` for en_US  locale (e.g. September 3, 2010)
20134 *   * `'mediumDate'`: equivalent to `'MMM d, y'` for en_US  locale (e.g. Sep 3, 2010)
20135 *   * `'shortDate'`: equivalent to `'M/d/yy'` for en_US locale (e.g. 9/3/10)
20136 *   * `'mediumTime'`: equivalent to `'h:mm:ss a'` for en_US locale (e.g. 12:05:08 PM)
20137 *   * `'shortTime'`: equivalent to `'h:mm a'` for en_US locale (e.g. 12:05 PM)
20138 *
20139 *   `format` string can contain literal values. These need to be escaped by surrounding with single quotes (e.g.
20140 *   `"h 'in the morning'"`). In order to output a single quote, escape it - i.e., two single quotes in a sequence
20141 *   (e.g. `"h 'o''clock'"`).
20142 *
20143 * @param {(Date|number|string)} date Date to format either as Date object, milliseconds (string or
20144 *    number) or various ISO 8601 datetime string formats (e.g. yyyy-MM-ddTHH:mm:ss.sssZ and its
20145 *    shorter versions like yyyy-MM-ddTHH:mmZ, yyyy-MM-dd or yyyyMMddTHHmmssZ). If no timezone is
20146 *    specified in the string input, the time is considered to be in the local timezone.
20147 * @param {string=} format Formatting rules (see Description). If not specified,
20148 *    `mediumDate` is used.
20149 * @param {string=} timezone Timezone to be used for formatting. It understands UTC/GMT and the
20150 *    continental US time zone abbreviations, but for general use, use a time zone offset, for
20151 *    example, `'+0430'` (4 hours, 30 minutes east of the Greenwich meridian)
20152 *    If not specified, the timezone of the browser will be used.
20153 * @returns {string} Formatted string or the input if input is not recognized as date/millis.
20154 *
20155 * @example
20156   <example>
20157     <file name="index.html">
20158       <span ng-non-bindable>{{1288323623006 | date:'medium'}}</span>:
20159           <span>{{1288323623006 | date:'medium'}}</span><br>
20160       <span ng-non-bindable>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span>:
20161          <span>{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}</span><br>
20162       <span ng-non-bindable>{{1288323623006 | date:'MM/dd/yyyy @ h:mma'}}</span>:
20163          <span>{{'1288323623006' | date:'MM/dd/yyyy @ h:mma'}}</span><br>
20164       <span ng-non-bindable>{{1288323623006 | date:"MM/dd/yyyy 'at' h:mma"}}</span>:
20165          <span>{{'1288323623006' | date:"MM/dd/yyyy 'at' h:mma"}}</span><br>
20166     </file>
20167     <file name="protractor.js" type="protractor">
20168       it('should format date', function() {
20169         expect(element(by.binding("1288323623006 | date:'medium'")).getText()).
20170            toMatch(/Oct 2\d, 2010 \d{1,2}:\d{2}:\d{2} (AM|PM)/);
20171         expect(element(by.binding("1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'")).getText()).
20172            toMatch(/2010\-10\-2\d \d{2}:\d{2}:\d{2} (\-|\+)?\d{4}/);
20173         expect(element(by.binding("'1288323623006' | date:'MM/dd/yyyy @ h:mma'")).getText()).
20174            toMatch(/10\/2\d\/2010 @ \d{1,2}:\d{2}(AM|PM)/);
20175         expect(element(by.binding("'1288323623006' | date:\"MM/dd/yyyy 'at' h:mma\"")).getText()).
20176            toMatch(/10\/2\d\/2010 at \d{1,2}:\d{2}(AM|PM)/);
20177       });
20178     </file>
20179   </example>
20180 */
20181dateFilter.$inject = ['$locale'];
20182function dateFilter($locale) {
20183
20184
20185  var R_ISO8601_STR = /^(\d{4})-?(\d\d)-?(\d\d)(?:T(\d\d)(?::?(\d\d)(?::?(\d\d)(?:\.(\d+))?)?)?(Z|([+-])(\d\d):?(\d\d))?)?$/;
20186                     // 1        2       3         4          5          6          7          8  9     10      11
20187  function jsonStringToDate(string) {
20188    var match;
20189    if (match = string.match(R_ISO8601_STR)) {
20190      var date = new Date(0),
20191          tzHour = 0,
20192          tzMin  = 0,
20193          dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear,
20194          timeSetter = match[8] ? date.setUTCHours : date.setHours;
20195
20196      if (match[9]) {
20197        tzHour = toInt(match[9] + match[10]);
20198        tzMin = toInt(match[9] + match[11]);
20199      }
20200      dateSetter.call(date, toInt(match[1]), toInt(match[2]) - 1, toInt(match[3]));
20201      var h = toInt(match[4] || 0) - tzHour;
20202      var m = toInt(match[5] || 0) - tzMin;
20203      var s = toInt(match[6] || 0);
20204      var ms = Math.round(parseFloat('0.' + (match[7] || 0)) * 1000);
20205      timeSetter.call(date, h, m, s, ms);
20206      return date;
20207    }
20208    return string;
20209  }
20210
20211
20212  return function(date, format, timezone) {
20213    var text = '',
20214        parts = [],
20215        fn, match;
20216
20217    format = format || 'mediumDate';
20218    format = $locale.DATETIME_FORMATS[format] || format;
20219    if (isString(date)) {
20220      date = NUMBER_STRING.test(date) ? toInt(date) : jsonStringToDate(date);
20221    }
20222
20223    if (isNumber(date)) {
20224      date = new Date(date);
20225    }
20226
20227    if (!isDate(date) || !isFinite(date.getTime())) {
20228      return date;
20229    }
20230
20231    while (format) {
20232      match = DATE_FORMATS_SPLIT.exec(format);
20233      if (match) {
20234        parts = concat(parts, match, 1);
20235        format = parts.pop();
20236      } else {
20237        parts.push(format);
20238        format = null;
20239      }
20240    }
20241
20242    var dateTimezoneOffset = date.getTimezoneOffset();
20243    if (timezone) {
20244      dateTimezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);
20245      date = convertTimezoneToLocal(date, timezone, true);
20246    }
20247    forEach(parts, function(value) {
20248      fn = DATE_FORMATS[value];
20249      text += fn ? fn(date, $locale.DATETIME_FORMATS, dateTimezoneOffset)
20250                 : value === "''" ? "'" : value.replace(/(^'|'$)/g, '').replace(/''/g, "'");
20251    });
20252
20253    return text;
20254  };
20255}
20256
20257
20258/**
20259 * @ngdoc filter
20260 * @name json
20261 * @kind function
20262 *
20263 * @description
20264 *   Allows you to convert a JavaScript object into JSON string.
20265 *
20266 *   This filter is mostly useful for debugging. When using the double curly {{value}} notation
20267 *   the binding is automatically converted to JSON.
20268 *
20269 * @param {*} object Any JavaScript object (including arrays and primitive types) to filter.
20270 * @param {number=} spacing The number of spaces to use per indentation, defaults to 2.
20271 * @returns {string} JSON string.
20272 *
20273 *
20274 * @example
20275   <example>
20276     <file name="index.html">
20277       <pre id="default-spacing">{{ {'name':'value'} | json }}</pre>
20278       <pre id="custom-spacing">{{ {'name':'value'} | json:4 }}</pre>
20279     </file>
20280     <file name="protractor.js" type="protractor">
20281       it('should jsonify filtered objects', function() {
20282         expect(element(by.id('default-spacing')).getText()).toMatch(/\{\n  "name": ?"value"\n}/);
20283         expect(element(by.id('custom-spacing')).getText()).toMatch(/\{\n    "name": ?"value"\n}/);
20284       });
20285     </file>
20286   </example>
20287 *
20288 */
20289function jsonFilter() {
20290  return function(object, spacing) {
20291    if (isUndefined(spacing)) {
20292        spacing = 2;
20293    }
20294    return toJson(object, spacing);
20295  };
20296}
20297
20298
20299/**
20300 * @ngdoc filter
20301 * @name lowercase
20302 * @kind function
20303 * @description
20304 * Converts string to lowercase.
20305 * @see angular.lowercase
20306 */
20307var lowercaseFilter = valueFn(lowercase);
20308
20309
20310/**
20311 * @ngdoc filter
20312 * @name uppercase
20313 * @kind function
20314 * @description
20315 * Converts string to uppercase.
20316 * @see angular.uppercase
20317 */
20318var uppercaseFilter = valueFn(uppercase);
20319
20320/**
20321 * @ngdoc filter
20322 * @name limitTo
20323 * @kind function
20324 *
20325 * @description
20326 * Creates a new array or string containing only a specified number of elements. The elements
20327 * are taken from either the beginning or the end of the source array, string or number, as specified by
20328 * the value and sign (positive or negative) of `limit`. If a number is used as input, it is
20329 * converted to a string.
20330 *
20331 * @param {Array|string|number} input Source array, string or number to be limited.
20332 * @param {string|number} limit The length of the returned array or string. If the `limit` number
20333 *     is positive, `limit` number of items from the beginning of the source array/string are copied.
20334 *     If the number is negative, `limit` number  of items from the end of the source array/string
20335 *     are copied. The `limit` will be trimmed if it exceeds `array.length`. If `limit` is undefined,
20336 *     the input will be returned unchanged.
20337 * @param {(string|number)=} begin Index at which to begin limitation. As a negative index, `begin`
20338 *     indicates an offset from the end of `input`. Defaults to `0`.
20339 * @returns {Array|string} A new sub-array or substring of length `limit` or less if input array
20340 *     had less than `limit` elements.
20341 *
20342 * @example
20343   <example module="limitToExample">
20344     <file name="index.html">
20345       <script>
20346         angular.module('limitToExample', [])
20347           .controller('ExampleController', ['$scope', function($scope) {
20348             $scope.numbers = [1,2,3,4,5,6,7,8,9];
20349             $scope.letters = "abcdefghi";
20350             $scope.longNumber = 2345432342;
20351             $scope.numLimit = 3;
20352             $scope.letterLimit = 3;
20353             $scope.longNumberLimit = 3;
20354           }]);
20355       </script>
20356       <div ng-controller="ExampleController">
20357         <label>
20358            Limit {{numbers}} to:
20359            <input type="number" step="1" ng-model="numLimit">
20360         </label>
20361         <p>Output numbers: {{ numbers | limitTo:numLimit }}</p>
20362         <label>
20363            Limit {{letters}} to:
20364            <input type="number" step="1" ng-model="letterLimit">
20365         </label>
20366         <p>Output letters: {{ letters | limitTo:letterLimit }}</p>
20367         <label>
20368            Limit {{longNumber}} to:
20369            <input type="number" step="1" ng-model="longNumberLimit">
20370         </label>
20371         <p>Output long number: {{ longNumber | limitTo:longNumberLimit }}</p>
20372       </div>
20373     </file>
20374     <file name="protractor.js" type="protractor">
20375       var numLimitInput = element(by.model('numLimit'));
20376       var letterLimitInput = element(by.model('letterLimit'));
20377       var longNumberLimitInput = element(by.model('longNumberLimit'));
20378       var limitedNumbers = element(by.binding('numbers | limitTo:numLimit'));
20379       var limitedLetters = element(by.binding('letters | limitTo:letterLimit'));
20380       var limitedLongNumber = element(by.binding('longNumber | limitTo:longNumberLimit'));
20381
20382       it('should limit the number array to first three items', function() {
20383         expect(numLimitInput.getAttribute('value')).toBe('3');
20384         expect(letterLimitInput.getAttribute('value')).toBe('3');
20385         expect(longNumberLimitInput.getAttribute('value')).toBe('3');
20386         expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3]');
20387         expect(limitedLetters.getText()).toEqual('Output letters: abc');
20388         expect(limitedLongNumber.getText()).toEqual('Output long number: 234');
20389       });
20390
20391       // There is a bug in safari and protractor that doesn't like the minus key
20392       // it('should update the output when -3 is entered', function() {
20393       //   numLimitInput.clear();
20394       //   numLimitInput.sendKeys('-3');
20395       //   letterLimitInput.clear();
20396       //   letterLimitInput.sendKeys('-3');
20397       //   longNumberLimitInput.clear();
20398       //   longNumberLimitInput.sendKeys('-3');
20399       //   expect(limitedNumbers.getText()).toEqual('Output numbers: [7,8,9]');
20400       //   expect(limitedLetters.getText()).toEqual('Output letters: ghi');
20401       //   expect(limitedLongNumber.getText()).toEqual('Output long number: 342');
20402       // });
20403
20404       it('should not exceed the maximum size of input array', function() {
20405         numLimitInput.clear();
20406         numLimitInput.sendKeys('100');
20407         letterLimitInput.clear();
20408         letterLimitInput.sendKeys('100');
20409         longNumberLimitInput.clear();
20410         longNumberLimitInput.sendKeys('100');
20411         expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3,4,5,6,7,8,9]');
20412         expect(limitedLetters.getText()).toEqual('Output letters: abcdefghi');
20413         expect(limitedLongNumber.getText()).toEqual('Output long number: 2345432342');
20414       });
20415     </file>
20416   </example>
20417*/
20418function limitToFilter() {
20419  return function(input, limit, begin) {
20420    if (Math.abs(Number(limit)) === Infinity) {
20421      limit = Number(limit);
20422    } else {
20423      limit = toInt(limit);
20424    }
20425    if (isNaN(limit)) return input;
20426
20427    if (isNumber(input)) input = input.toString();
20428    if (!isArray(input) && !isString(input)) return input;
20429
20430    begin = (!begin || isNaN(begin)) ? 0 : toInt(begin);
20431    begin = (begin < 0) ? Math.max(0, input.length + begin) : begin;
20432
20433    if (limit >= 0) {
20434      return input.slice(begin, begin + limit);
20435    } else {
20436      if (begin === 0) {
20437        return input.slice(limit, input.length);
20438      } else {
20439        return input.slice(Math.max(0, begin + limit), begin);
20440      }
20441    }
20442  };
20443}
20444
20445/**
20446 * @ngdoc filter
20447 * @name orderBy
20448 * @kind function
20449 *
20450 * @description
20451 * Orders a specified `array` by the `expression` predicate. It is ordered alphabetically
20452 * for strings and numerically for numbers. Note: if you notice numbers are not being sorted
20453 * as expected, make sure they are actually being saved as numbers and not strings.
20454 * Array-like values (e.g. NodeLists, jQuery objects, TypedArrays, Strings, etc) are also supported.
20455 *
20456 * @param {Array} array The array (or array-like object) to sort.
20457 * @param {function(*)|string|Array.<(function(*)|string)>=} expression A predicate to be
20458 *    used by the comparator to determine the order of elements.
20459 *
20460 *    Can be one of:
20461 *
20462 *    - `function`: Getter function. The result of this function will be sorted using the
20463 *      `<`, `===`, `>` operator.
20464 *    - `string`: An Angular expression. The result of this expression is used to compare elements
20465 *      (for example `name` to sort by a property called `name` or `name.substr(0, 3)` to sort by
20466 *      3 first characters of a property called `name`). The result of a constant expression
20467 *      is interpreted as a property name to be used in comparisons (for example `"special name"`
20468 *      to sort object by the value of their `special name` property). An expression can be
20469 *      optionally prefixed with `+` or `-` to control ascending or descending sort order
20470 *      (for example, `+name` or `-name`). If no property is provided, (e.g. `'+'`) then the array
20471 *      element itself is used to compare where sorting.
20472 *    - `Array`: An array of function or string predicates. The first predicate in the array
20473 *      is used for sorting, but when two items are equivalent, the next predicate is used.
20474 *
20475 *    If the predicate is missing or empty then it defaults to `'+'`.
20476 *
20477 * @param {boolean=} reverse Reverse the order of the array.
20478 * @returns {Array} Sorted copy of the source array.
20479 *
20480 *
20481 * @example
20482 * The example below demonstrates a simple ngRepeat, where the data is sorted
20483 * by age in descending order (predicate is set to `'-age'`).
20484 * `reverse` is not set, which means it defaults to `false`.
20485   <example module="orderByExample">
20486     <file name="index.html">
20487       <div ng-controller="ExampleController">
20488         <table class="friend">
20489           <tr>
20490             <th>Name</th>
20491             <th>Phone Number</th>
20492             <th>Age</th>
20493           </tr>
20494           <tr ng-repeat="friend in friends | orderBy:'-age'">
20495             <td>{{friend.name}}</td>
20496             <td>{{friend.phone}}</td>
20497             <td>{{friend.age}}</td>
20498           </tr>
20499         </table>
20500       </div>
20501     </file>
20502     <file name="script.js">
20503       angular.module('orderByExample', [])
20504         .controller('ExampleController', ['$scope', function($scope) {
20505           $scope.friends =
20506               [{name:'John', phone:'555-1212', age:10},
20507                {name:'Mary', phone:'555-9876', age:19},
20508                {name:'Mike', phone:'555-4321', age:21},
20509                {name:'Adam', phone:'555-5678', age:35},
20510                {name:'Julie', phone:'555-8765', age:29}];
20511         }]);
20512     </file>
20513   </example>
20514 *
20515 * The predicate and reverse parameters can be controlled dynamically through scope properties,
20516 * as shown in the next example.
20517 * @example
20518   <example module="orderByExample">
20519     <file name="index.html">
20520       <div ng-controller="ExampleController">
20521         <pre>Sorting predicate = {{predicate}}; reverse = {{reverse}}</pre>
20522         <hr/>
20523         <button ng-click="predicate=''">Set to unsorted</button>
20524         <table class="friend">
20525           <tr>
20526            <th>
20527                <button ng-click="order('name')">Name</button>
20528                <span class="sortorder" ng-show="predicate === 'name'" ng-class="{reverse:reverse}"></span>
20529            </th>
20530            <th>
20531                <button ng-click="order('phone')">Phone Number</button>
20532                <span class="sortorder" ng-show="predicate === 'phone'" ng-class="{reverse:reverse}"></span>
20533            </th>
20534            <th>
20535                <button ng-click="order('age')">Age</button>
20536                <span class="sortorder" ng-show="predicate === 'age'" ng-class="{reverse:reverse}"></span>
20537            </th>
20538           </tr>
20539           <tr ng-repeat="friend in friends | orderBy:predicate:reverse">
20540             <td>{{friend.name}}</td>
20541             <td>{{friend.phone}}</td>
20542             <td>{{friend.age}}</td>
20543           </tr>
20544         </table>
20545       </div>
20546     </file>
20547     <file name="script.js">
20548       angular.module('orderByExample', [])
20549         .controller('ExampleController', ['$scope', function($scope) {
20550           $scope.friends =
20551               [{name:'John', phone:'555-1212', age:10},
20552                {name:'Mary', phone:'555-9876', age:19},
20553                {name:'Mike', phone:'555-4321', age:21},
20554                {name:'Adam', phone:'555-5678', age:35},
20555                {name:'Julie', phone:'555-8765', age:29}];
20556           $scope.predicate = 'age';
20557           $scope.reverse = true;
20558           $scope.order = function(predicate) {
20559             $scope.reverse = ($scope.predicate === predicate) ? !$scope.reverse : false;
20560             $scope.predicate = predicate;
20561           };
20562         }]);
20563      </file>
20564     <file name="style.css">
20565       .sortorder:after {
20566         content: '\25b2';
20567       }
20568       .sortorder.reverse:after {
20569         content: '\25bc';
20570       }
20571     </file>
20572   </example>
20573 *
20574 * It's also possible to call the orderBy filter manually, by injecting `$filter`, retrieving the
20575 * filter routine with `$filter('orderBy')`, and calling the returned filter routine with the
20576 * desired parameters.
20577 *
20578 * Example:
20579 *
20580 * @example
20581  <example module="orderByExample">
20582    <file name="index.html">
20583    <div ng-controller="ExampleController">
20584      <pre>Sorting predicate = {{predicate}}; reverse = {{reverse}}</pre>
20585      <table class="friend">
20586        <tr>
20587          <th>
20588              <button ng-click="order('name')">Name</button>
20589              <span class="sortorder" ng-show="predicate === 'name'" ng-class="{reverse:reverse}"></span>
20590          </th>
20591          <th>
20592              <button ng-click="order('phone')">Phone Number</button>
20593              <span class="sortorder" ng-show="predicate === 'phone'" ng-class="{reverse:reverse}"></span>
20594          </th>
20595          <th>
20596              <button ng-click="order('age')">Age</button>
20597              <span class="sortorder" ng-show="predicate === 'age'" ng-class="{reverse:reverse}"></span>
20598          </th>
20599        </tr>
20600        <tr ng-repeat="friend in friends">
20601          <td>{{friend.name}}</td>
20602          <td>{{friend.phone}}</td>
20603          <td>{{friend.age}}</td>
20604        </tr>
20605      </table>
20606    </div>
20607    </file>
20608
20609    <file name="script.js">
20610      angular.module('orderByExample', [])
20611        .controller('ExampleController', ['$scope', '$filter', function($scope, $filter) {
20612          var orderBy = $filter('orderBy');
20613          $scope.friends = [
20614            { name: 'John',    phone: '555-1212',    age: 10 },
20615            { name: 'Mary',    phone: '555-9876',    age: 19 },
20616            { name: 'Mike',    phone: '555-4321',    age: 21 },
20617            { name: 'Adam',    phone: '555-5678',    age: 35 },
20618            { name: 'Julie',   phone: '555-8765',    age: 29 }
20619          ];
20620          $scope.order = function(predicate) {
20621            $scope.predicate = predicate;
20622            $scope.reverse = ($scope.predicate === predicate) ? !$scope.reverse : false;
20623            $scope.friends = orderBy($scope.friends, predicate, $scope.reverse);
20624          };
20625          $scope.order('age', true);
20626        }]);
20627    </file>
20628
20629    <file name="style.css">
20630       .sortorder:after {
20631         content: '\25b2';
20632       }
20633       .sortorder.reverse:after {
20634         content: '\25bc';
20635       }
20636    </file>
20637</example>
20638 */
20639orderByFilter.$inject = ['$parse'];
20640function orderByFilter($parse) {
20641  return function(array, sortPredicate, reverseOrder) {
20642
20643    if (array == null) return array;
20644    if (!isArrayLike(array)) {
20645      throw minErr('orderBy')('notarray', 'Expected array but received: {0}', array);
20646    }
20647
20648    if (!isArray(sortPredicate)) { sortPredicate = [sortPredicate]; }
20649    if (sortPredicate.length === 0) { sortPredicate = ['+']; }
20650
20651    var predicates = processPredicates(sortPredicate, reverseOrder);
20652    // Add a predicate at the end that evaluates to the element index. This makes the
20653    // sort stable as it works as a tie-breaker when all the input predicates cannot
20654    // distinguish between two elements.
20655    predicates.push({ get: function() { return {}; }, descending: reverseOrder ? -1 : 1});
20656
20657    // The next three lines are a version of a Swartzian Transform idiom from Perl
20658    // (sometimes called the Decorate-Sort-Undecorate idiom)
20659    // See https://en.wikipedia.org/wiki/Schwartzian_transform
20660    var compareValues = Array.prototype.map.call(array, getComparisonObject);
20661    compareValues.sort(doComparison);
20662    array = compareValues.map(function(item) { return item.value; });
20663
20664    return array;
20665
20666    function getComparisonObject(value, index) {
20667      return {
20668        value: value,
20669        predicateValues: predicates.map(function(predicate) {
20670          return getPredicateValue(predicate.get(value), index);
20671        })
20672      };
20673    }
20674
20675    function doComparison(v1, v2) {
20676      var result = 0;
20677      for (var index=0, length = predicates.length; index < length; ++index) {
20678        result = compare(v1.predicateValues[index], v2.predicateValues[index]) * predicates[index].descending;
20679        if (result) break;
20680      }
20681      return result;
20682    }
20683  };
20684
20685  function processPredicates(sortPredicate, reverseOrder) {
20686    reverseOrder = reverseOrder ? -1 : 1;
20687    return sortPredicate.map(function(predicate) {
20688      var descending = 1, get = identity;
20689
20690      if (isFunction(predicate)) {
20691        get = predicate;
20692      } else if (isString(predicate)) {
20693        if ((predicate.charAt(0) == '+' || predicate.charAt(0) == '-')) {
20694          descending = predicate.charAt(0) == '-' ? -1 : 1;
20695          predicate = predicate.substring(1);
20696        }
20697        if (predicate !== '') {
20698          get = $parse(predicate);
20699          if (get.constant) {
20700            var key = get();
20701            get = function(value) { return value[key]; };
20702          }
20703        }
20704      }
20705      return { get: get, descending: descending * reverseOrder };
20706    });
20707  }
20708
20709  function isPrimitive(value) {
20710    switch (typeof value) {
20711      case 'number': /* falls through */
20712      case 'boolean': /* falls through */
20713      case 'string':
20714        return true;
20715      default:
20716        return false;
20717    }
20718  }
20719
20720  function objectValue(value, index) {
20721    // If `valueOf` is a valid function use that
20722    if (typeof value.valueOf === 'function') {
20723      value = value.valueOf();
20724      if (isPrimitive(value)) return value;
20725    }
20726    // If `toString` is a valid function and not the one from `Object.prototype` use that
20727    if (hasCustomToString(value)) {
20728      value = value.toString();
20729      if (isPrimitive(value)) return value;
20730    }
20731    // We have a basic object so we use the position of the object in the collection
20732    return index;
20733  }
20734
20735  function getPredicateValue(value, index) {
20736    var type = typeof value;
20737    if (value === null) {
20738      type = 'string';
20739      value = 'null';
20740    } else if (type === 'string') {
20741      value = value.toLowerCase();
20742    } else if (type === 'object') {
20743      value = objectValue(value, index);
20744    }
20745    return { value: value, type: type };
20746  }
20747
20748  function compare(v1, v2) {
20749    var result = 0;
20750    if (v1.type === v2.type) {
20751      if (v1.value !== v2.value) {
20752        result = v1.value < v2.value ? -1 : 1;
20753      }
20754    } else {
20755      result = v1.type < v2.type ? -1 : 1;
20756    }
20757    return result;
20758  }
20759}
20760
20761function ngDirective(directive) {
20762  if (isFunction(directive)) {
20763    directive = {
20764      link: directive
20765    };
20766  }
20767  directive.restrict = directive.restrict || 'AC';
20768  return valueFn(directive);
20769}
20770
20771/**
20772 * @ngdoc directive
20773 * @name a
20774 * @restrict E
20775 *
20776 * @description
20777 * Modifies the default behavior of the html A tag so that the default action is prevented when
20778 * the href attribute is empty.
20779 *
20780 * This change permits the easy creation of action links with the `ngClick` directive
20781 * without changing the location or causing page reloads, e.g.:
20782 * `<a href="" ng-click="list.addItem()">Add Item</a>`
20783 */
20784var htmlAnchorDirective = valueFn({
20785  restrict: 'E',
20786  compile: function(element, attr) {
20787    if (!attr.href && !attr.xlinkHref) {
20788      return function(scope, element) {
20789        // If the linked element is not an anchor tag anymore, do nothing
20790        if (element[0].nodeName.toLowerCase() !== 'a') return;
20791
20792        // SVGAElement does not use the href attribute, but rather the 'xlinkHref' attribute.
20793        var href = toString.call(element.prop('href')) === '[object SVGAnimatedString]' ?
20794                   'xlink:href' : 'href';
20795        element.on('click', function(event) {
20796          // if we have no href url, then don't navigate anywhere.
20797          if (!element.attr(href)) {
20798            event.preventDefault();
20799          }
20800        });
20801      };
20802    }
20803  }
20804});
20805
20806/**
20807 * @ngdoc directive
20808 * @name ngHref
20809 * @restrict A
20810 * @priority 99
20811 *
20812 * @description
20813 * Using Angular markup like `{{hash}}` in an href attribute will
20814 * make the link go to the wrong URL if the user clicks it before
20815 * Angular has a chance to replace the `{{hash}}` markup with its
20816 * value. Until Angular replaces the markup the link will be broken
20817 * and will most likely return a 404 error. The `ngHref` directive
20818 * solves this problem.
20819 *
20820 * The wrong way to write it:
20821 * ```html
20822 * <a href="http://www.gravatar.com/avatar/{{hash}}">link1</a>
20823 * ```
20824 *
20825 * The correct way to write it:
20826 * ```html
20827 * <a ng-href="http://www.gravatar.com/avatar/{{hash}}">link1</a>
20828 * ```
20829 *
20830 * @element A
20831 * @param {template} ngHref any string which can contain `{{}}` markup.
20832 *
20833 * @example
20834 * This example shows various combinations of `href`, `ng-href` and `ng-click` attributes
20835 * in links and their different behaviors:
20836    <example>
20837      <file name="index.html">
20838        <input ng-model="value" /><br />
20839        <a id="link-1" href ng-click="value = 1">link 1</a> (link, don't reload)<br />
20840        <a id="link-2" href="" ng-click="value = 2">link 2</a> (link, don't reload)<br />
20841        <a id="link-3" ng-href="/{{'123'}}">link 3</a> (link, reload!)<br />
20842        <a id="link-4" href="" name="xx" ng-click="value = 4">anchor</a> (link, don't reload)<br />
20843        <a id="link-5" name="xxx" ng-click="value = 5">anchor</a> (no link)<br />
20844        <a id="link-6" ng-href="{{value}}">link</a> (link, change location)
20845      </file>
20846      <file name="protractor.js" type="protractor">
20847        it('should execute ng-click but not reload when href without value', function() {
20848          element(by.id('link-1')).click();
20849          expect(element(by.model('value')).getAttribute('value')).toEqual('1');
20850          expect(element(by.id('link-1')).getAttribute('href')).toBe('');
20851        });
20852
20853        it('should execute ng-click but not reload when href empty string', function() {
20854          element(by.id('link-2')).click();
20855          expect(element(by.model('value')).getAttribute('value')).toEqual('2');
20856          expect(element(by.id('link-2')).getAttribute('href')).toBe('');
20857        });
20858
20859        it('should execute ng-click and change url when ng-href specified', function() {
20860          expect(element(by.id('link-3')).getAttribute('href')).toMatch(/\/123$/);
20861
20862          element(by.id('link-3')).click();
20863
20864          // At this point, we navigate away from an Angular page, so we need
20865          // to use browser.driver to get the base webdriver.
20866
20867          browser.wait(function() {
20868            return browser.driver.getCurrentUrl().then(function(url) {
20869              return url.match(/\/123$/);
20870            });
20871          }, 5000, 'page should navigate to /123');
20872        });
20873
20874        it('should execute ng-click but not reload when href empty string and name specified', function() {
20875          element(by.id('link-4')).click();
20876          expect(element(by.model('value')).getAttribute('value')).toEqual('4');
20877          expect(element(by.id('link-4')).getAttribute('href')).toBe('');
20878        });
20879
20880        it('should execute ng-click but not reload when no href but name specified', function() {
20881          element(by.id('link-5')).click();
20882          expect(element(by.model('value')).getAttribute('value')).toEqual('5');
20883          expect(element(by.id('link-5')).getAttribute('href')).toBe(null);
20884        });
20885
20886        it('should only change url when only ng-href', function() {
20887          element(by.model('value')).clear();
20888          element(by.model('value')).sendKeys('6');
20889          expect(element(by.id('link-6')).getAttribute('href')).toMatch(/\/6$/);
20890
20891          element(by.id('link-6')).click();
20892
20893          // At this point, we navigate away from an Angular page, so we need
20894          // to use browser.driver to get the base webdriver.
20895          browser.wait(function() {
20896            return browser.driver.getCurrentUrl().then(function(url) {
20897              return url.match(/\/6$/);
20898            });
20899          }, 5000, 'page should navigate to /6');
20900        });
20901      </file>
20902    </example>
20903 */
20904
20905/**
20906 * @ngdoc directive
20907 * @name ngSrc
20908 * @restrict A
20909 * @priority 99
20910 *
20911 * @description
20912 * Using Angular markup like `{{hash}}` in a `src` attribute doesn't
20913 * work right: The browser will fetch from the URL with the literal
20914 * text `{{hash}}` until Angular replaces the expression inside
20915 * `{{hash}}`. The `ngSrc` directive solves this problem.
20916 *
20917 * The buggy way to write it:
20918 * ```html
20919 * <img src="http://www.gravatar.com/avatar/{{hash}}" alt="Description"/>
20920 * ```
20921 *
20922 * The correct way to write it:
20923 * ```html
20924 * <img ng-src="http://www.gravatar.com/avatar/{{hash}}" alt="Description" />
20925 * ```
20926 *
20927 * @element IMG
20928 * @param {template} ngSrc any string which can contain `{{}}` markup.
20929 */
20930
20931/**
20932 * @ngdoc directive
20933 * @name ngSrcset
20934 * @restrict A
20935 * @priority 99
20936 *
20937 * @description
20938 * Using Angular markup like `{{hash}}` in a `srcset` attribute doesn't
20939 * work right: The browser will fetch from the URL with the literal
20940 * text `{{hash}}` until Angular replaces the expression inside
20941 * `{{hash}}`. The `ngSrcset` directive solves this problem.
20942 *
20943 * The buggy way to write it:
20944 * ```html
20945 * <img srcset="http://www.gravatar.com/avatar/{{hash}} 2x" alt="Description"/>
20946 * ```
20947 *
20948 * The correct way to write it:
20949 * ```html
20950 * <img ng-srcset="http://www.gravatar.com/avatar/{{hash}} 2x" alt="Description" />
20951 * ```
20952 *
20953 * @element IMG
20954 * @param {template} ngSrcset any string which can contain `{{}}` markup.
20955 */
20956
20957/**
20958 * @ngdoc directive
20959 * @name ngDisabled
20960 * @restrict A
20961 * @priority 100
20962 *
20963 * @description
20964 *
20965 * This directive sets the `disabled` attribute on the element if the
20966 * {@link guide/expression expression} inside `ngDisabled` evaluates to truthy.
20967 *
20968 * A special directive is necessary because we cannot use interpolation inside the `disabled`
20969 * attribute. See the {@link guide/interpolation interpolation guide} for more info.
20970 *
20971 * @example
20972    <example>
20973      <file name="index.html">
20974        <label>Click me to toggle: <input type="checkbox" ng-model="checked"></label><br/>
20975        <button ng-model="button" ng-disabled="checked">Button</button>
20976      </file>
20977      <file name="protractor.js" type="protractor">
20978        it('should toggle button', function() {
20979          expect(element(by.css('button')).getAttribute('disabled')).toBeFalsy();
20980          element(by.model('checked')).click();
20981          expect(element(by.css('button')).getAttribute('disabled')).toBeTruthy();
20982        });
20983      </file>
20984    </example>
20985 *
20986 * @element INPUT
20987 * @param {expression} ngDisabled If the {@link guide/expression expression} is truthy,
20988 *     then the `disabled` attribute will be set on the element
20989 */
20990
20991
20992/**
20993 * @ngdoc directive
20994 * @name ngChecked
20995 * @restrict A
20996 * @priority 100
20997 *
20998 * @description
20999 * Sets the `checked` attribute on the element, if the expression inside `ngChecked` is truthy.
21000 *
21001 * Note that this directive should not be used together with {@link ngModel `ngModel`},
21002 * as this can lead to unexpected behavior.
21003 *
21004 * A special directive is necessary because we cannot use interpolation inside the `checked`
21005 * attribute. See the {@link guide/interpolation interpolation guide} for more info.
21006 *
21007 * @example
21008    <example>
21009      <file name="index.html">
21010        <label>Check me to check both: <input type="checkbox" ng-model="master"></label><br/>
21011        <input id="checkSlave" type="checkbox" ng-checked="master" aria-label="Slave input">
21012      </file>
21013      <file name="protractor.js" type="protractor">
21014        it('should check both checkBoxes', function() {
21015          expect(element(by.id('checkSlave')).getAttribute('checked')).toBeFalsy();
21016          element(by.model('master')).click();
21017          expect(element(by.id('checkSlave')).getAttribute('checked')).toBeTruthy();
21018        });
21019      </file>
21020    </example>
21021 *
21022 * @element INPUT
21023 * @param {expression} ngChecked If the {@link guide/expression expression} is truthy,
21024 *     then the `checked` attribute will be set on the element
21025 */
21026
21027
21028/**
21029 * @ngdoc directive
21030 * @name ngReadonly
21031 * @restrict A
21032 * @priority 100
21033 *
21034 * @description
21035 *
21036 * Sets the `readOnly` attribute on the element, if the expression inside `ngReadonly` is truthy.
21037 *
21038 * A special directive is necessary because we cannot use interpolation inside the `readOnly`
21039 * attribute. See the {@link guide/interpolation interpolation guide} for more info.
21040 *
21041 * @example
21042    <example>
21043      <file name="index.html">
21044        <label>Check me to make text readonly: <input type="checkbox" ng-model="checked"></label><br/>
21045        <input type="text" ng-readonly="checked" value="I'm Angular" aria-label="Readonly field" />
21046      </file>
21047      <file name="protractor.js" type="protractor">
21048        it('should toggle readonly attr', function() {
21049          expect(element(by.css('[type="text"]')).getAttribute('readonly')).toBeFalsy();
21050          element(by.model('checked')).click();
21051          expect(element(by.css('[type="text"]')).getAttribute('readonly')).toBeTruthy();
21052        });
21053      </file>
21054    </example>
21055 *
21056 * @element INPUT
21057 * @param {expression} ngReadonly If the {@link guide/expression expression} is truthy,
21058 *     then special attribute "readonly" will be set on the element
21059 */
21060
21061
21062/**
21063 * @ngdoc directive
21064 * @name ngSelected
21065 * @restrict A
21066 * @priority 100
21067 *
21068 * @description
21069 *
21070 * Sets the `selected` attribute on the element, if the expression inside `ngSelected` is truthy.
21071 *
21072 * A special directive is necessary because we cannot use interpolation inside the `selected`
21073 * attribute. See the {@link guide/interpolation interpolation guide} for more info.
21074 *
21075 * @example
21076    <example>
21077      <file name="index.html">
21078        <label>Check me to select: <input type="checkbox" ng-model="selected"></label><br/>
21079        <select aria-label="ngSelected demo">
21080          <option>Hello!</option>
21081          <option id="greet" ng-selected="selected">Greetings!</option>
21082        </select>
21083      </file>
21084      <file name="protractor.js" type="protractor">
21085        it('should select Greetings!', function() {
21086          expect(element(by.id('greet')).getAttribute('selected')).toBeFalsy();
21087          element(by.model('selected')).click();
21088          expect(element(by.id('greet')).getAttribute('selected')).toBeTruthy();
21089        });
21090      </file>
21091    </example>
21092 *
21093 * @element OPTION
21094 * @param {expression} ngSelected If the {@link guide/expression expression} is truthy,
21095 *     then special attribute "selected" will be set on the element
21096 */
21097
21098/**
21099 * @ngdoc directive
21100 * @name ngOpen
21101 * @restrict A
21102 * @priority 100
21103 *
21104 * @description
21105 *
21106 * Sets the `open` attribute on the element, if the expression inside `ngOpen` is truthy.
21107 *
21108 * A special directive is necessary because we cannot use interpolation inside the `open`
21109 * attribute. See the {@link guide/interpolation interpolation guide} for more info.
21110 *
21111 * @example
21112     <example>
21113       <file name="index.html">
21114         <label>Check me check multiple: <input type="checkbox" ng-model="open"></label><br/>
21115         <details id="details" ng-open="open">
21116            <summary>Show/Hide me</summary>
21117         </details>
21118       </file>
21119       <file name="protractor.js" type="protractor">
21120         it('should toggle open', function() {
21121           expect(element(by.id('details')).getAttribute('open')).toBeFalsy();
21122           element(by.model('open')).click();
21123           expect(element(by.id('details')).getAttribute('open')).toBeTruthy();
21124         });
21125       </file>
21126     </example>
21127 *
21128 * @element DETAILS
21129 * @param {expression} ngOpen If the {@link guide/expression expression} is truthy,
21130 *     then special attribute "open" will be set on the element
21131 */
21132
21133var ngAttributeAliasDirectives = {};
21134
21135// boolean attrs are evaluated
21136forEach(BOOLEAN_ATTR, function(propName, attrName) {
21137  // binding to multiple is not supported
21138  if (propName == "multiple") return;
21139
21140  function defaultLinkFn(scope, element, attr) {
21141    scope.$watch(attr[normalized], function ngBooleanAttrWatchAction(value) {
21142      attr.$set(attrName, !!value);
21143    });
21144  }
21145
21146  var normalized = directiveNormalize('ng-' + attrName);
21147  var linkFn = defaultLinkFn;
21148
21149  if (propName === 'checked') {
21150    linkFn = function(scope, element, attr) {
21151      // ensuring ngChecked doesn't interfere with ngModel when both are set on the same input
21152      if (attr.ngModel !== attr[normalized]) {
21153        defaultLinkFn(scope, element, attr);
21154      }
21155    };
21156  }
21157
21158  ngAttributeAliasDirectives[normalized] = function() {
21159    return {
21160      restrict: 'A',
21161      priority: 100,
21162      link: linkFn
21163    };
21164  };
21165});
21166
21167// aliased input attrs are evaluated
21168forEach(ALIASED_ATTR, function(htmlAttr, ngAttr) {
21169  ngAttributeAliasDirectives[ngAttr] = function() {
21170    return {
21171      priority: 100,
21172      link: function(scope, element, attr) {
21173        //special case ngPattern when a literal regular expression value
21174        //is used as the expression (this way we don't have to watch anything).
21175        if (ngAttr === "ngPattern" && attr.ngPattern.charAt(0) == "/") {
21176          var match = attr.ngPattern.match(REGEX_STRING_REGEXP);
21177          if (match) {
21178            attr.$set("ngPattern", new RegExp(match[1], match[2]));
21179            return;
21180          }
21181        }
21182
21183        scope.$watch(attr[ngAttr], function ngAttrAliasWatchAction(value) {
21184          attr.$set(ngAttr, value);
21185        });
21186      }
21187    };
21188  };
21189});
21190
21191// ng-src, ng-srcset, ng-href are interpolated
21192forEach(['src', 'srcset', 'href'], function(attrName) {
21193  var normalized = directiveNormalize('ng-' + attrName);
21194  ngAttributeAliasDirectives[normalized] = function() {
21195    return {
21196      priority: 99, // it needs to run after the attributes are interpolated
21197      link: function(scope, element, attr) {
21198        var propName = attrName,
21199            name = attrName;
21200
21201        if (attrName === 'href' &&
21202            toString.call(element.prop('href')) === '[object SVGAnimatedString]') {
21203          name = 'xlinkHref';
21204          attr.$attr[name] = 'xlink:href';
21205          propName = null;
21206        }
21207
21208        attr.$observe(normalized, function(value) {
21209          if (!value) {
21210            if (attrName === 'href') {
21211              attr.$set(name, null);
21212            }
21213            return;
21214          }
21215
21216          attr.$set(name, value);
21217
21218          // on IE, if "ng:src" directive declaration is used and "src" attribute doesn't exist
21219          // then calling element.setAttribute('src', 'foo') doesn't do anything, so we need
21220          // to set the property as well to achieve the desired effect.
21221          // we use attr[attrName] value since $set can sanitize the url.
21222          if (msie && propName) element.prop(propName, attr[name]);
21223        });
21224      }
21225    };
21226  };
21227});
21228
21229/* global -nullFormCtrl, -SUBMITTED_CLASS, addSetValidityMethod: true
21230 */
21231var nullFormCtrl = {
21232  $addControl: noop,
21233  $$renameControl: nullFormRenameControl,
21234  $removeControl: noop,
21235  $setValidity: noop,
21236  $setDirty: noop,
21237  $setPristine: noop,
21238  $setSubmitted: noop
21239},
21240SUBMITTED_CLASS = 'ng-submitted';
21241
21242function nullFormRenameControl(control, name) {
21243  control.$name = name;
21244}
21245
21246/**
21247 * @ngdoc type
21248 * @name form.FormController
21249 *
21250 * @property {boolean} $pristine True if user has not interacted with the form yet.
21251 * @property {boolean} $dirty True if user has already interacted with the form.
21252 * @property {boolean} $valid True if all of the containing forms and controls are valid.
21253 * @property {boolean} $invalid True if at least one containing control or form is invalid.
21254 * @property {boolean} $pending True if at least one containing control or form is pending.
21255 * @property {boolean} $submitted True if user has submitted the form even if its invalid.
21256 *
21257 * @property {Object} $error Is an object hash, containing references to controls or
21258 *  forms with failing validators, where:
21259 *
21260 *  - keys are validation tokens (error names),
21261 *  - values are arrays of controls or forms that have a failing validator for given error name.
21262 *
21263 *  Built-in validation tokens:
21264 *
21265 *  - `email`
21266 *  - `max`
21267 *  - `maxlength`
21268 *  - `min`
21269 *  - `minlength`
21270 *  - `number`
21271 *  - `pattern`
21272 *  - `required`
21273 *  - `url`
21274 *  - `date`
21275 *  - `datetimelocal`
21276 *  - `time`
21277 *  - `week`
21278 *  - `month`
21279 *
21280 * @description
21281 * `FormController` keeps track of all its controls and nested forms as well as the state of them,
21282 * such as being valid/invalid or dirty/pristine.
21283 *
21284 * Each {@link ng.directive:form form} directive creates an instance
21285 * of `FormController`.
21286 *
21287 */
21288//asks for $scope to fool the BC controller module
21289FormController.$inject = ['$element', '$attrs', '$scope', '$animate', '$interpolate'];
21290function FormController(element, attrs, $scope, $animate, $interpolate) {
21291  var form = this,
21292      controls = [];
21293
21294  // init state
21295  form.$error = {};
21296  form.$$success = {};
21297  form.$pending = undefined;
21298  form.$name = $interpolate(attrs.name || attrs.ngForm || '')($scope);
21299  form.$dirty = false;
21300  form.$pristine = true;
21301  form.$valid = true;
21302  form.$invalid = false;
21303  form.$submitted = false;
21304  form.$$parentForm = nullFormCtrl;
21305
21306  /**
21307   * @ngdoc method
21308   * @name form.FormController#$rollbackViewValue
21309   *
21310   * @description
21311   * Rollback all form controls pending updates to the `$modelValue`.
21312   *
21313   * Updates may be pending by a debounced event or because the input is waiting for a some future
21314   * event defined in `ng-model-options`. This method is typically needed by the reset button of
21315   * a form that uses `ng-model-options` to pend updates.
21316   */
21317  form.$rollbackViewValue = function() {
21318    forEach(controls, function(control) {
21319      control.$rollbackViewValue();
21320    });
21321  };
21322
21323  /**
21324   * @ngdoc method
21325   * @name form.FormController#$commitViewValue
21326   *
21327   * @description
21328   * Commit all form controls pending updates to the `$modelValue`.
21329   *
21330   * Updates may be pending by a debounced event or because the input is waiting for a some future
21331   * event defined in `ng-model-options`. This method is rarely needed as `NgModelController`
21332   * usually handles calling this in response to input events.
21333   */
21334  form.$commitViewValue = function() {
21335    forEach(controls, function(control) {
21336      control.$commitViewValue();
21337    });
21338  };
21339
21340  /**
21341   * @ngdoc method
21342   * @name form.FormController#$addControl
21343   * @param {object} control control object, either a {@link form.FormController} or an
21344   * {@link ngModel.NgModelController}
21345   *
21346   * @description
21347   * Register a control with the form. Input elements using ngModelController do this automatically
21348   * when they are linked.
21349   *
21350   * Note that the current state of the control will not be reflected on the new parent form. This
21351   * is not an issue with normal use, as freshly compiled and linked controls are in a `$pristine`
21352   * state.
21353   *
21354   * However, if the method is used programmatically, for example by adding dynamically created controls,
21355   * or controls that have been previously removed without destroying their corresponding DOM element,
21356   * it's the developers responsibility to make sure the current state propagates to the parent form.
21357   *
21358   * For example, if an input control is added that is already `$dirty` and has `$error` properties,
21359   * calling `$setDirty()` and `$validate()` afterwards will propagate the state to the parent form.
21360   */
21361  form.$addControl = function(control) {
21362    // Breaking change - before, inputs whose name was "hasOwnProperty" were quietly ignored
21363    // and not added to the scope.  Now we throw an error.
21364    assertNotHasOwnProperty(control.$name, 'input');
21365    controls.push(control);
21366
21367    if (control.$name) {
21368      form[control.$name] = control;
21369    }
21370
21371    control.$$parentForm = form;
21372  };
21373
21374  // Private API: rename a form control
21375  form.$$renameControl = function(control, newName) {
21376    var oldName = control.$name;
21377
21378    if (form[oldName] === control) {
21379      delete form[oldName];
21380    }
21381    form[newName] = control;
21382    control.$name = newName;
21383  };
21384
21385  /**
21386   * @ngdoc method
21387   * @name form.FormController#$removeControl
21388   * @param {object} control control object, either a {@link form.FormController} or an
21389   * {@link ngModel.NgModelController}
21390   *
21391   * @description
21392   * Deregister a control from the form.
21393   *
21394   * Input elements using ngModelController do this automatically when they are destroyed.
21395   *
21396   * Note that only the removed control's validation state (`$errors`etc.) will be removed from the
21397   * form. `$dirty`, `$submitted` states will not be changed, because the expected behavior can be
21398   * different from case to case. For example, removing the only `$dirty` control from a form may or
21399   * may not mean that the form is still `$dirty`.
21400   */
21401  form.$removeControl = function(control) {
21402    if (control.$name && form[control.$name] === control) {
21403      delete form[control.$name];
21404    }
21405    forEach(form.$pending, function(value, name) {
21406      form.$setValidity(name, null, control);
21407    });
21408    forEach(form.$error, function(value, name) {
21409      form.$setValidity(name, null, control);
21410    });
21411    forEach(form.$$success, function(value, name) {
21412      form.$setValidity(name, null, control);
21413    });
21414
21415    arrayRemove(controls, control);
21416    control.$$parentForm = nullFormCtrl;
21417  };
21418
21419
21420  /**
21421   * @ngdoc method
21422   * @name form.FormController#$setValidity
21423   *
21424   * @description
21425   * Sets the validity of a form control.
21426   *
21427   * This method will also propagate to parent forms.
21428   */
21429  addSetValidityMethod({
21430    ctrl: this,
21431    $element: element,
21432    set: function(object, property, controller) {
21433      var list = object[property];
21434      if (!list) {
21435        object[property] = [controller];
21436      } else {
21437        var index = list.indexOf(controller);
21438        if (index === -1) {
21439          list.push(controller);
21440        }
21441      }
21442    },
21443    unset: function(object, property, controller) {
21444      var list = object[property];
21445      if (!list) {
21446        return;
21447      }
21448      arrayRemove(list, controller);
21449      if (list.length === 0) {
21450        delete object[property];
21451      }
21452    },
21453    $animate: $animate
21454  });
21455
21456  /**
21457   * @ngdoc method
21458   * @name form.FormController#$setDirty
21459   *
21460   * @description
21461   * Sets the form to a dirty state.
21462   *
21463   * This method can be called to add the 'ng-dirty' class and set the form to a dirty
21464   * state (ng-dirty class). This method will also propagate to parent forms.
21465   */
21466  form.$setDirty = function() {
21467    $animate.removeClass(element, PRISTINE_CLASS);
21468    $animate.addClass(element, DIRTY_CLASS);
21469    form.$dirty = true;
21470    form.$pristine = false;
21471    form.$$parentForm.$setDirty();
21472  };
21473
21474  /**
21475   * @ngdoc method
21476   * @name form.FormController#$setPristine
21477   *
21478   * @description
21479   * Sets the form to its pristine state.
21480   *
21481   * This method can be called to remove the 'ng-dirty' class and set the form to its pristine
21482   * state (ng-pristine class). This method will also propagate to all the controls contained
21483   * in this form.
21484   *
21485   * Setting a form back to a pristine state is often useful when we want to 'reuse' a form after
21486   * saving or resetting it.
21487   */
21488  form.$setPristine = function() {
21489    $animate.setClass(element, PRISTINE_CLASS, DIRTY_CLASS + ' ' + SUBMITTED_CLASS);
21490    form.$dirty = false;
21491    form.$pristine = true;
21492    form.$submitted = false;
21493    forEach(controls, function(control) {
21494      control.$setPristine();
21495    });
21496  };
21497
21498  /**
21499   * @ngdoc method
21500   * @name form.FormController#$setUntouched
21501   *
21502   * @description
21503   * Sets the form to its untouched state.
21504   *
21505   * This method can be called to remove the 'ng-touched' class and set the form controls to their
21506   * untouched state (ng-untouched class).
21507   *
21508   * Setting a form controls back to their untouched state is often useful when setting the form
21509   * back to its pristine state.
21510   */
21511  form.$setUntouched = function() {
21512    forEach(controls, function(control) {
21513      control.$setUntouched();
21514    });
21515  };
21516
21517  /**
21518   * @ngdoc method
21519   * @name form.FormController#$setSubmitted
21520   *
21521   * @description
21522   * Sets the form to its submitted state.
21523   */
21524  form.$setSubmitted = function() {
21525    $animate.addClass(element, SUBMITTED_CLASS);
21526    form.$submitted = true;
21527    form.$$parentForm.$setSubmitted();
21528  };
21529}
21530
21531/**
21532 * @ngdoc directive
21533 * @name ngForm
21534 * @restrict EAC
21535 *
21536 * @description
21537 * Nestable alias of {@link ng.directive:form `form`} directive. HTML
21538 * does not allow nesting of form elements. It is useful to nest forms, for example if the validity of a
21539 * sub-group of controls needs to be determined.
21540 *
21541 * Note: the purpose of `ngForm` is to group controls,
21542 * but not to be a replacement for the `<form>` tag with all of its capabilities
21543 * (e.g. posting to the server, ...).
21544 *
21545 * @param {string=} ngForm|name Name of the form. If specified, the form controller will be published into
21546 *                       related scope, under this name.
21547 *
21548 */
21549
21550 /**
21551 * @ngdoc directive
21552 * @name form
21553 * @restrict E
21554 *
21555 * @description
21556 * Directive that instantiates
21557 * {@link form.FormController FormController}.
21558 *
21559 * If the `name` attribute is specified, the form controller is published onto the current scope under
21560 * this name.
21561 *
21562 * # Alias: {@link ng.directive:ngForm `ngForm`}
21563 *
21564 * In Angular, forms can be nested. This means that the outer form is valid when all of the child
21565 * forms are valid as well. However, browsers do not allow nesting of `<form>` elements, so
21566 * Angular provides the {@link ng.directive:ngForm `ngForm`} directive, which behaves identically to
21567 * `form` but can be nested. Nested forms can be useful, for example, if the validity of a sub-group
21568 * of controls needs to be determined.
21569 *
21570 * # CSS classes
21571 *  - `ng-valid` is set if the form is valid.
21572 *  - `ng-invalid` is set if the form is invalid.
21573 *  - `ng-pending` is set if the form is pending.
21574 *  - `ng-pristine` is set if the form is pristine.
21575 *  - `ng-dirty` is set if the form is dirty.
21576 *  - `ng-submitted` is set if the form was submitted.
21577 *
21578 * Keep in mind that ngAnimate can detect each of these classes when added and removed.
21579 *
21580 *
21581 * # Submitting a form and preventing the default action
21582 *
21583 * Since the role of forms in client-side Angular applications is different than in classical
21584 * roundtrip apps, it is desirable for the browser not to translate the form submission into a full
21585 * page reload that sends the data to the server. Instead some javascript logic should be triggered
21586 * to handle the form submission in an application-specific way.
21587 *
21588 * For this reason, Angular prevents the default action (form submission to the server) unless the
21589 * `<form>` element has an `action` attribute specified.
21590 *
21591 * You can use one of the following two ways to specify what javascript method should be called when
21592 * a form is submitted:
21593 *
21594 * - {@link ng.directive:ngSubmit ngSubmit} directive on the form element
21595 * - {@link ng.directive:ngClick ngClick} directive on the first
21596  *  button or input field of type submit (input[type=submit])
21597 *
21598 * To prevent double execution of the handler, use only one of the {@link ng.directive:ngSubmit ngSubmit}
21599 * or {@link ng.directive:ngClick ngClick} directives.
21600 * This is because of the following form submission rules in the HTML specification:
21601 *
21602 * - If a form has only one input field then hitting enter in this field triggers form submit
21603 * (`ngSubmit`)
21604 * - if a form has 2+ input fields and no buttons or input[type=submit] then hitting enter
21605 * doesn't trigger submit
21606 * - if a form has one or more input fields and one or more buttons or input[type=submit] then
21607 * hitting enter in any of the input fields will trigger the click handler on the *first* button or
21608 * input[type=submit] (`ngClick`) *and* a submit handler on the enclosing form (`ngSubmit`)
21609 *
21610 * Any pending `ngModelOptions` changes will take place immediately when an enclosing form is
21611 * submitted. Note that `ngClick` events will occur before the model is updated. Use `ngSubmit`
21612 * to have access to the updated model.
21613 *
21614 * ## Animation Hooks
21615 *
21616 * Animations in ngForm are triggered when any of the associated CSS classes are added and removed.
21617 * These classes are: `.ng-pristine`, `.ng-dirty`, `.ng-invalid` and `.ng-valid` as well as any
21618 * other validations that are performed within the form. Animations in ngForm are similar to how
21619 * they work in ngClass and animations can be hooked into using CSS transitions, keyframes as well
21620 * as JS animations.
21621 *
21622 * The following example shows a simple way to utilize CSS transitions to style a form element
21623 * that has been rendered as invalid after it has been validated:
21624 *
21625 * <pre>
21626 * //be sure to include ngAnimate as a module to hook into more
21627 * //advanced animations
21628 * .my-form {
21629 *   transition:0.5s linear all;
21630 *   background: white;
21631 * }
21632 * .my-form.ng-invalid {
21633 *   background: red;
21634 *   color:white;
21635 * }
21636 * </pre>
21637 *
21638 * @example
21639    <example deps="angular-animate.js" animations="true" fixBase="true" module="formExample">
21640      <file name="index.html">
21641       <script>
21642         angular.module('formExample', [])
21643           .controller('FormController', ['$scope', function($scope) {
21644             $scope.userType = 'guest';
21645           }]);
21646       </script>
21647       <style>
21648        .my-form {
21649          transition:all linear 0.5s;
21650          background: transparent;
21651        }
21652        .my-form.ng-invalid {
21653          background: red;
21654        }
21655       </style>
21656       <form name="myForm" ng-controller="FormController" class="my-form">
21657         userType: <input name="input" ng-model="userType" required>
21658         <span class="error" ng-show="myForm.input.$error.required">Required!</span><br>
21659         <code>userType = {{userType}}</code><br>
21660         <code>myForm.input.$valid = {{myForm.input.$valid}}</code><br>
21661         <code>myForm.input.$error = {{myForm.input.$error}}</code><br>
21662         <code>myForm.$valid = {{myForm.$valid}}</code><br>
21663         <code>myForm.$error.required = {{!!myForm.$error.required}}</code><br>
21664        </form>
21665      </file>
21666      <file name="protractor.js" type="protractor">
21667        it('should initialize to model', function() {
21668          var userType = element(by.binding('userType'));
21669          var valid = element(by.binding('myForm.input.$valid'));
21670
21671          expect(userType.getText()).toContain('guest');
21672          expect(valid.getText()).toContain('true');
21673        });
21674
21675        it('should be invalid if empty', function() {
21676          var userType = element(by.binding('userType'));
21677          var valid = element(by.binding('myForm.input.$valid'));
21678          var userInput = element(by.model('userType'));
21679
21680          userInput.clear();
21681          userInput.sendKeys('');
21682
21683          expect(userType.getText()).toEqual('userType =');
21684          expect(valid.getText()).toContain('false');
21685        });
21686      </file>
21687    </example>
21688 *
21689 * @param {string=} name Name of the form. If specified, the form controller will be published into
21690 *                       related scope, under this name.
21691 */
21692var formDirectiveFactory = function(isNgForm) {
21693  return ['$timeout', '$parse', function($timeout, $parse) {
21694    var formDirective = {
21695      name: 'form',
21696      restrict: isNgForm ? 'EAC' : 'E',
21697      require: ['form', '^^?form'], //first is the form's own ctrl, second is an optional parent form
21698      controller: FormController,
21699      compile: function ngFormCompile(formElement, attr) {
21700        // Setup initial state of the control
21701        formElement.addClass(PRISTINE_CLASS).addClass(VALID_CLASS);
21702
21703        var nameAttr = attr.name ? 'name' : (isNgForm && attr.ngForm ? 'ngForm' : false);
21704
21705        return {
21706          pre: function ngFormPreLink(scope, formElement, attr, ctrls) {
21707            var controller = ctrls[0];
21708
21709            // if `action` attr is not present on the form, prevent the default action (submission)
21710            if (!('action' in attr)) {
21711              // we can't use jq events because if a form is destroyed during submission the default
21712              // action is not prevented. see #1238
21713              //
21714              // IE 9 is not affected because it doesn't fire a submit event and try to do a full
21715              // page reload if the form was destroyed by submission of the form via a click handler
21716              // on a button in the form. Looks like an IE9 specific bug.
21717              var handleFormSubmission = function(event) {
21718                scope.$apply(function() {
21719                  controller.$commitViewValue();
21720                  controller.$setSubmitted();
21721                });
21722
21723                event.preventDefault();
21724              };
21725
21726              addEventListenerFn(formElement[0], 'submit', handleFormSubmission);
21727
21728              // unregister the preventDefault listener so that we don't not leak memory but in a
21729              // way that will achieve the prevention of the default action.
21730              formElement.on('$destroy', function() {
21731                $timeout(function() {
21732                  removeEventListenerFn(formElement[0], 'submit', handleFormSubmission);
21733                }, 0, false);
21734              });
21735            }
21736
21737            var parentFormCtrl = ctrls[1] || controller.$$parentForm;
21738            parentFormCtrl.$addControl(controller);
21739
21740            var setter = nameAttr ? getSetter(controller.$name) : noop;
21741
21742            if (nameAttr) {
21743              setter(scope, controller);
21744              attr.$observe(nameAttr, function(newValue) {
21745                if (controller.$name === newValue) return;
21746                setter(scope, undefined);
21747                controller.$$parentForm.$$renameControl(controller, newValue);
21748                setter = getSetter(controller.$name);
21749                setter(scope, controller);
21750              });
21751            }
21752            formElement.on('$destroy', function() {
21753              controller.$$parentForm.$removeControl(controller);
21754              setter(scope, undefined);
21755              extend(controller, nullFormCtrl); //stop propagating child destruction handlers upwards
21756            });
21757          }
21758        };
21759      }
21760    };
21761
21762    return formDirective;
21763
21764    function getSetter(expression) {
21765      if (expression === '') {
21766        //create an assignable expression, so forms with an empty name can be renamed later
21767        return $parse('this[""]').assign;
21768      }
21769      return $parse(expression).assign || noop;
21770    }
21771  }];
21772};
21773
21774var formDirective = formDirectiveFactory();
21775var ngFormDirective = formDirectiveFactory(true);
21776
21777/* global VALID_CLASS: false,
21778  INVALID_CLASS: false,
21779  PRISTINE_CLASS: false,
21780  DIRTY_CLASS: false,
21781  UNTOUCHED_CLASS: false,
21782  TOUCHED_CLASS: false,
21783  ngModelMinErr: false,
21784*/
21785
21786// Regex code was initially obtained from SO prior to modification: https://stackoverflow.com/questions/3143070/javascript-regex-iso-datetime#answer-3143231
21787var ISO_DATE_REGEXP = /^\d{4,}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d\.\d+(?:[+-][0-2]\d:[0-5]\d|Z)$/;
21788// See valid URLs in RFC3987 (http://tools.ietf.org/html/rfc3987)
21789// Note: We are being more lenient, because browsers are too.
21790//   1. Scheme
21791//   2. Slashes
21792//   3. Username
21793//   4. Password
21794//   5. Hostname
21795//   6. Port
21796//   7. Path
21797//   8. Query
21798//   9. Fragment
21799//                 1111111111111111 222   333333    44444        555555555555555555555555    666     77777777     8888888     999
21800var URL_REGEXP = /^[a-z][a-z\d.+-]*:\/*(?:[^:@]+(?::[^@]+)?@)?(?:[^\s:/?#]+|\[[a-f\d:]+\])(?::\d+)?(?:\/[^?#]*)?(?:\?[^#]*)?(?:#.*)?$/i;
21801var EMAIL_REGEXP = /^[a-z0-9!#$%&'*+\/=?^_`{|}~.-]+@[a-z0-9]([a-z0-9-]*[a-z0-9])?(\.[a-z0-9]([a-z0-9-]*[a-z0-9])?)*$/i;
21802var NUMBER_REGEXP = /^\s*(\-|\+)?(\d+|(\d*(\.\d*)))([eE][+-]?\d+)?\s*$/;
21803var DATE_REGEXP = /^(\d{4,})-(\d{2})-(\d{2})$/;
21804var DATETIMELOCAL_REGEXP = /^(\d{4,})-(\d\d)-(\d\d)T(\d\d):(\d\d)(?::(\d\d)(\.\d{1,3})?)?$/;
21805var WEEK_REGEXP = /^(\d{4,})-W(\d\d)$/;
21806var MONTH_REGEXP = /^(\d{4,})-(\d\d)$/;
21807var TIME_REGEXP = /^(\d\d):(\d\d)(?::(\d\d)(\.\d{1,3})?)?$/;
21808
21809var PARTIAL_VALIDATION_EVENTS = 'keydown wheel mousedown';
21810var PARTIAL_VALIDATION_TYPES = createMap();
21811forEach('date,datetime-local,month,time,week'.split(','), function(type) {
21812  PARTIAL_VALIDATION_TYPES[type] = true;
21813});
21814
21815var inputType = {
21816
21817  /**
21818   * @ngdoc input
21819   * @name input[text]
21820   *
21821   * @description
21822   * Standard HTML text input with angular data binding, inherited by most of the `input` elements.
21823   *
21824   *
21825   * @param {string} ngModel Assignable angular expression to data-bind to.
21826   * @param {string=} name Property name of the form under which the control is published.
21827   * @param {string=} required Adds `required` validation error key if the value is not entered.
21828   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
21829   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of
21830   *    `required` when you want to data-bind to the `required` attribute.
21831   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than
21832   *    minlength.
21833   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than
21834   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of
21835   *    any length.
21836   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string
21837   *    that contains the regular expression body that will be converted to a regular expression
21838   *    as in the ngPattern directive.
21839   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}
21840   *    does not match a RegExp found by evaluating the Angular expression given in the attribute value.
21841   *    If the expression evaluates to a RegExp object, then this is used directly.
21842   *    If the expression evaluates to a string, then it will be converted to a RegExp
21843   *    after wrapping it in `^` and `$` characters. For instance, `"abc"` will be converted to
21844   *    `new RegExp('^abc$')`.<br />
21845   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to
21846   *    start at the index of the last search's match, thus not taking the whole input value into
21847   *    account.
21848   * @param {string=} ngChange Angular expression to be executed when input changes due to user
21849   *    interaction with the input element.
21850   * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input.
21851   *    This parameter is ignored for input[type=password] controls, which will never trim the
21852   *    input.
21853   *
21854   * @example
21855      <example name="text-input-directive" module="textInputExample">
21856        <file name="index.html">
21857         <script>
21858           angular.module('textInputExample', [])
21859             .controller('ExampleController', ['$scope', function($scope) {
21860               $scope.example = {
21861                 text: 'guest',
21862                 word: /^\s*\w*\s*$/
21863               };
21864             }]);
21865         </script>
21866         <form name="myForm" ng-controller="ExampleController">
21867           <label>Single word:
21868             <input type="text" name="input" ng-model="example.text"
21869                    ng-pattern="example.word" required ng-trim="false">
21870           </label>
21871           <div role="alert">
21872             <span class="error" ng-show="myForm.input.$error.required">
21873               Required!</span>
21874             <span class="error" ng-show="myForm.input.$error.pattern">
21875               Single word only!</span>
21876           </div>
21877           <tt>text = {{example.text}}</tt><br/>
21878           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>
21879           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>
21880           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
21881           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
21882          </form>
21883        </file>
21884        <file name="protractor.js" type="protractor">
21885          var text = element(by.binding('example.text'));
21886          var valid = element(by.binding('myForm.input.$valid'));
21887          var input = element(by.model('example.text'));
21888
21889          it('should initialize to model', function() {
21890            expect(text.getText()).toContain('guest');
21891            expect(valid.getText()).toContain('true');
21892          });
21893
21894          it('should be invalid if empty', function() {
21895            input.clear();
21896            input.sendKeys('');
21897
21898            expect(text.getText()).toEqual('text =');
21899            expect(valid.getText()).toContain('false');
21900          });
21901
21902          it('should be invalid if multi word', function() {
21903            input.clear();
21904            input.sendKeys('hello world');
21905
21906            expect(valid.getText()).toContain('false');
21907          });
21908        </file>
21909      </example>
21910   */
21911  'text': textInputType,
21912
21913    /**
21914     * @ngdoc input
21915     * @name input[date]
21916     *
21917     * @description
21918     * Input with date validation and transformation. In browsers that do not yet support
21919     * the HTML5 date input, a text element will be used. In that case, text must be entered in a valid ISO-8601
21920     * date format (yyyy-MM-dd), for example: `2009-01-06`. Since many
21921     * modern browsers do not yet support this input type, it is important to provide cues to users on the
21922     * expected input format via a placeholder or label.
21923     *
21924     * The model must always be a Date object, otherwise Angular will throw an error.
21925     * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.
21926     *
21927     * The timezone to be used to read/write the `Date` instance in the model can be defined using
21928     * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.
21929     *
21930     * @param {string} ngModel Assignable angular expression to data-bind to.
21931     * @param {string=} name Property name of the form under which the control is published.
21932     * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. This must be a
21933     *   valid ISO date string (yyyy-MM-dd). You can also use interpolation inside this attribute
21934     *   (e.g. `min="{{minDate | date:'yyyy-MM-dd'}}"`). Note that `min` will also add native HTML5
21935     *   constraint validation.
21936     * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. This must be
21937     *   a valid ISO date string (yyyy-MM-dd). You can also use interpolation inside this attribute
21938     *   (e.g. `max="{{maxDate | date:'yyyy-MM-dd'}}"`). Note that `max` will also add native HTML5
21939     *   constraint validation.
21940     * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO date string
21941     *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.
21942     * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO date string
21943     *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.
21944     * @param {string=} required Sets `required` validation error key if the value is not entered.
21945     * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
21946     *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of
21947     *    `required` when you want to data-bind to the `required` attribute.
21948     * @param {string=} ngChange Angular expression to be executed when input changes due to user
21949     *    interaction with the input element.
21950     *
21951     * @example
21952     <example name="date-input-directive" module="dateInputExample">
21953     <file name="index.html">
21954       <script>
21955          angular.module('dateInputExample', [])
21956            .controller('DateController', ['$scope', function($scope) {
21957              $scope.example = {
21958                value: new Date(2013, 9, 22)
21959              };
21960            }]);
21961       </script>
21962       <form name="myForm" ng-controller="DateController as dateCtrl">
21963          <label for="exampleInput">Pick a date in 2013:</label>
21964          <input type="date" id="exampleInput" name="input" ng-model="example.value"
21965              placeholder="yyyy-MM-dd" min="2013-01-01" max="2013-12-31" required />
21966          <div role="alert">
21967            <span class="error" ng-show="myForm.input.$error.required">
21968                Required!</span>
21969            <span class="error" ng-show="myForm.input.$error.date">
21970                Not a valid date!</span>
21971           </div>
21972           <tt>value = {{example.value | date: "yyyy-MM-dd"}}</tt><br/>
21973           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>
21974           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>
21975           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
21976           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
21977       </form>
21978     </file>
21979     <file name="protractor.js" type="protractor">
21980        var value = element(by.binding('example.value | date: "yyyy-MM-dd"'));
21981        var valid = element(by.binding('myForm.input.$valid'));
21982        var input = element(by.model('example.value'));
21983
21984        // currently protractor/webdriver does not support
21985        // sending keys to all known HTML5 input controls
21986        // for various browsers (see https://github.com/angular/protractor/issues/562).
21987        function setInput(val) {
21988          // set the value of the element and force validation.
21989          var scr = "var ipt = document.getElementById('exampleInput'); " +
21990          "ipt.value = '" + val + "';" +
21991          "angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('" + val + "'); });";
21992          browser.executeScript(scr);
21993        }
21994
21995        it('should initialize to model', function() {
21996          expect(value.getText()).toContain('2013-10-22');
21997          expect(valid.getText()).toContain('myForm.input.$valid = true');
21998        });
21999
22000        it('should be invalid if empty', function() {
22001          setInput('');
22002          expect(value.getText()).toEqual('value =');
22003          expect(valid.getText()).toContain('myForm.input.$valid = false');
22004        });
22005
22006        it('should be invalid if over max', function() {
22007          setInput('2015-01-01');
22008          expect(value.getText()).toContain('');
22009          expect(valid.getText()).toContain('myForm.input.$valid = false');
22010        });
22011     </file>
22012     </example>
22013     */
22014  'date': createDateInputType('date', DATE_REGEXP,
22015         createDateParser(DATE_REGEXP, ['yyyy', 'MM', 'dd']),
22016         'yyyy-MM-dd'),
22017
22018   /**
22019    * @ngdoc input
22020    * @name input[datetime-local]
22021    *
22022    * @description
22023    * Input with datetime validation and transformation. In browsers that do not yet support
22024    * the HTML5 date input, a text element will be used. In that case, the text must be entered in a valid ISO-8601
22025    * local datetime format (yyyy-MM-ddTHH:mm:ss), for example: `2010-12-28T14:57:00`.
22026    *
22027    * The model must always be a Date object, otherwise Angular will throw an error.
22028    * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.
22029    *
22030    * The timezone to be used to read/write the `Date` instance in the model can be defined using
22031    * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.
22032    *
22033    * @param {string} ngModel Assignable angular expression to data-bind to.
22034    * @param {string=} name Property name of the form under which the control is published.
22035    * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.
22036    *   This must be a valid ISO datetime format (yyyy-MM-ddTHH:mm:ss). You can also use interpolation
22037    *   inside this attribute (e.g. `min="{{minDatetimeLocal | date:'yyyy-MM-ddTHH:mm:ss'}}"`).
22038    *   Note that `min` will also add native HTML5 constraint validation.
22039    * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.
22040    *   This must be a valid ISO datetime format (yyyy-MM-ddTHH:mm:ss). You can also use interpolation
22041    *   inside this attribute (e.g. `max="{{maxDatetimeLocal | date:'yyyy-MM-ddTHH:mm:ss'}}"`).
22042    *   Note that `max` will also add native HTML5 constraint validation.
22043    * @param {(date|string)=} ngMin Sets the `min` validation error key to the Date / ISO datetime string
22044    *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.
22045    * @param {(date|string)=} ngMax Sets the `max` validation error key to the Date / ISO datetime string
22046    *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.
22047    * @param {string=} required Sets `required` validation error key if the value is not entered.
22048    * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
22049    *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of
22050    *    `required` when you want to data-bind to the `required` attribute.
22051    * @param {string=} ngChange Angular expression to be executed when input changes due to user
22052    *    interaction with the input element.
22053    *
22054    * @example
22055    <example name="datetimelocal-input-directive" module="dateExample">
22056    <file name="index.html">
22057      <script>
22058        angular.module('dateExample', [])
22059          .controller('DateController', ['$scope', function($scope) {
22060            $scope.example = {
22061              value: new Date(2010, 11, 28, 14, 57)
22062            };
22063          }]);
22064      </script>
22065      <form name="myForm" ng-controller="DateController as dateCtrl">
22066        <label for="exampleInput">Pick a date between in 2013:</label>
22067        <input type="datetime-local" id="exampleInput" name="input" ng-model="example.value"
22068            placeholder="yyyy-MM-ddTHH:mm:ss" min="2001-01-01T00:00:00" max="2013-12-31T00:00:00" required />
22069        <div role="alert">
22070          <span class="error" ng-show="myForm.input.$error.required">
22071              Required!</span>
22072          <span class="error" ng-show="myForm.input.$error.datetimelocal">
22073              Not a valid date!</span>
22074        </div>
22075        <tt>value = {{example.value | date: "yyyy-MM-ddTHH:mm:ss"}}</tt><br/>
22076        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>
22077        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>
22078        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
22079        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
22080      </form>
22081    </file>
22082    <file name="protractor.js" type="protractor">
22083      var value = element(by.binding('example.value | date: "yyyy-MM-ddTHH:mm:ss"'));
22084      var valid = element(by.binding('myForm.input.$valid'));
22085      var input = element(by.model('example.value'));
22086
22087      // currently protractor/webdriver does not support
22088      // sending keys to all known HTML5 input controls
22089      // for various browsers (https://github.com/angular/protractor/issues/562).
22090      function setInput(val) {
22091        // set the value of the element and force validation.
22092        var scr = "var ipt = document.getElementById('exampleInput'); " +
22093        "ipt.value = '" + val + "';" +
22094        "angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('" + val + "'); });";
22095        browser.executeScript(scr);
22096      }
22097
22098      it('should initialize to model', function() {
22099        expect(value.getText()).toContain('2010-12-28T14:57:00');
22100        expect(valid.getText()).toContain('myForm.input.$valid = true');
22101      });
22102
22103      it('should be invalid if empty', function() {
22104        setInput('');
22105        expect(value.getText()).toEqual('value =');
22106        expect(valid.getText()).toContain('myForm.input.$valid = false');
22107      });
22108
22109      it('should be invalid if over max', function() {
22110        setInput('2015-01-01T23:59:00');
22111        expect(value.getText()).toContain('');
22112        expect(valid.getText()).toContain('myForm.input.$valid = false');
22113      });
22114    </file>
22115    </example>
22116    */
22117  'datetime-local': createDateInputType('datetimelocal', DATETIMELOCAL_REGEXP,
22118      createDateParser(DATETIMELOCAL_REGEXP, ['yyyy', 'MM', 'dd', 'HH', 'mm', 'ss', 'sss']),
22119      'yyyy-MM-ddTHH:mm:ss.sss'),
22120
22121  /**
22122   * @ngdoc input
22123   * @name input[time]
22124   *
22125   * @description
22126   * Input with time validation and transformation. In browsers that do not yet support
22127   * the HTML5 time input, a text element will be used. In that case, the text must be entered in a valid ISO-8601
22128   * local time format (HH:mm:ss), for example: `14:57:00`. Model must be a Date object. This binding will always output a
22129   * Date object to the model of January 1, 1970, or local date `new Date(1970, 0, 1, HH, mm, ss)`.
22130   *
22131   * The model must always be a Date object, otherwise Angular will throw an error.
22132   * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.
22133   *
22134   * The timezone to be used to read/write the `Date` instance in the model can be defined using
22135   * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.
22136   *
22137   * @param {string} ngModel Assignable angular expression to data-bind to.
22138   * @param {string=} name Property name of the form under which the control is published.
22139   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.
22140   *   This must be a valid ISO time format (HH:mm:ss). You can also use interpolation inside this
22141   *   attribute (e.g. `min="{{minTime | date:'HH:mm:ss'}}"`). Note that `min` will also add
22142   *   native HTML5 constraint validation.
22143   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.
22144   *   This must be a valid ISO time format (HH:mm:ss). You can also use interpolation inside this
22145   *   attribute (e.g. `max="{{maxTime | date:'HH:mm:ss'}}"`). Note that `max` will also add
22146   *   native HTML5 constraint validation.
22147   * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO time string the
22148   *   `ngMin` expression evaluates to. Note that it does not set the `min` attribute.
22149   * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO time string the
22150   *   `ngMax` expression evaluates to. Note that it does not set the `max` attribute.
22151   * @param {string=} required Sets `required` validation error key if the value is not entered.
22152   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
22153   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of
22154   *    `required` when you want to data-bind to the `required` attribute.
22155   * @param {string=} ngChange Angular expression to be executed when input changes due to user
22156   *    interaction with the input element.
22157   *
22158   * @example
22159   <example name="time-input-directive" module="timeExample">
22160   <file name="index.html">
22161     <script>
22162      angular.module('timeExample', [])
22163        .controller('DateController', ['$scope', function($scope) {
22164          $scope.example = {
22165            value: new Date(1970, 0, 1, 14, 57, 0)
22166          };
22167        }]);
22168     </script>
22169     <form name="myForm" ng-controller="DateController as dateCtrl">
22170        <label for="exampleInput">Pick a time between 8am and 5pm:</label>
22171        <input type="time" id="exampleInput" name="input" ng-model="example.value"
22172            placeholder="HH:mm:ss" min="08:00:00" max="17:00:00" required />
22173        <div role="alert">
22174          <span class="error" ng-show="myForm.input.$error.required">
22175              Required!</span>
22176          <span class="error" ng-show="myForm.input.$error.time">
22177              Not a valid date!</span>
22178        </div>
22179        <tt>value = {{example.value | date: "HH:mm:ss"}}</tt><br/>
22180        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>
22181        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>
22182        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
22183        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
22184     </form>
22185   </file>
22186   <file name="protractor.js" type="protractor">
22187      var value = element(by.binding('example.value | date: "HH:mm:ss"'));
22188      var valid = element(by.binding('myForm.input.$valid'));
22189      var input = element(by.model('example.value'));
22190
22191      // currently protractor/webdriver does not support
22192      // sending keys to all known HTML5 input controls
22193      // for various browsers (https://github.com/angular/protractor/issues/562).
22194      function setInput(val) {
22195        // set the value of the element and force validation.
22196        var scr = "var ipt = document.getElementById('exampleInput'); " +
22197        "ipt.value = '" + val + "';" +
22198        "angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('" + val + "'); });";
22199        browser.executeScript(scr);
22200      }
22201
22202      it('should initialize to model', function() {
22203        expect(value.getText()).toContain('14:57:00');
22204        expect(valid.getText()).toContain('myForm.input.$valid = true');
22205      });
22206
22207      it('should be invalid if empty', function() {
22208        setInput('');
22209        expect(value.getText()).toEqual('value =');
22210        expect(valid.getText()).toContain('myForm.input.$valid = false');
22211      });
22212
22213      it('should be invalid if over max', function() {
22214        setInput('23:59:00');
22215        expect(value.getText()).toContain('');
22216        expect(valid.getText()).toContain('myForm.input.$valid = false');
22217      });
22218   </file>
22219   </example>
22220   */
22221  'time': createDateInputType('time', TIME_REGEXP,
22222      createDateParser(TIME_REGEXP, ['HH', 'mm', 'ss', 'sss']),
22223     'HH:mm:ss.sss'),
22224
22225   /**
22226    * @ngdoc input
22227    * @name input[week]
22228    *
22229    * @description
22230    * Input with week-of-the-year validation and transformation to Date. In browsers that do not yet support
22231    * the HTML5 week input, a text element will be used. In that case, the text must be entered in a valid ISO-8601
22232    * week format (yyyy-W##), for example: `2013-W02`.
22233    *
22234    * The model must always be a Date object, otherwise Angular will throw an error.
22235    * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.
22236    *
22237    * The timezone to be used to read/write the `Date` instance in the model can be defined using
22238    * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.
22239    *
22240    * @param {string} ngModel Assignable angular expression to data-bind to.
22241    * @param {string=} name Property name of the form under which the control is published.
22242    * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.
22243    *   This must be a valid ISO week format (yyyy-W##). You can also use interpolation inside this
22244    *   attribute (e.g. `min="{{minWeek | date:'yyyy-Www'}}"`). Note that `min` will also add
22245    *   native HTML5 constraint validation.
22246    * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.
22247    *   This must be a valid ISO week format (yyyy-W##). You can also use interpolation inside this
22248    *   attribute (e.g. `max="{{maxWeek | date:'yyyy-Www'}}"`). Note that `max` will also add
22249    *   native HTML5 constraint validation.
22250    * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO week string
22251    *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.
22252    * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO week string
22253    *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.
22254    * @param {string=} required Sets `required` validation error key if the value is not entered.
22255    * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
22256    *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of
22257    *    `required` when you want to data-bind to the `required` attribute.
22258    * @param {string=} ngChange Angular expression to be executed when input changes due to user
22259    *    interaction with the input element.
22260    *
22261    * @example
22262    <example name="week-input-directive" module="weekExample">
22263    <file name="index.html">
22264      <script>
22265      angular.module('weekExample', [])
22266        .controller('DateController', ['$scope', function($scope) {
22267          $scope.example = {
22268            value: new Date(2013, 0, 3)
22269          };
22270        }]);
22271      </script>
22272      <form name="myForm" ng-controller="DateController as dateCtrl">
22273        <label>Pick a date between in 2013:
22274          <input id="exampleInput" type="week" name="input" ng-model="example.value"
22275                 placeholder="YYYY-W##" min="2012-W32"
22276                 max="2013-W52" required />
22277        </label>
22278        <div role="alert">
22279          <span class="error" ng-show="myForm.input.$error.required">
22280              Required!</span>
22281          <span class="error" ng-show="myForm.input.$error.week">
22282              Not a valid date!</span>
22283        </div>
22284        <tt>value = {{example.value | date: "yyyy-Www"}}</tt><br/>
22285        <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>
22286        <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>
22287        <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
22288        <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
22289      </form>
22290    </file>
22291    <file name="protractor.js" type="protractor">
22292      var value = element(by.binding('example.value | date: "yyyy-Www"'));
22293      var valid = element(by.binding('myForm.input.$valid'));
22294      var input = element(by.model('example.value'));
22295
22296      // currently protractor/webdriver does not support
22297      // sending keys to all known HTML5 input controls
22298      // for various browsers (https://github.com/angular/protractor/issues/562).
22299      function setInput(val) {
22300        // set the value of the element and force validation.
22301        var scr = "var ipt = document.getElementById('exampleInput'); " +
22302        "ipt.value = '" + val + "';" +
22303        "angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('" + val + "'); });";
22304        browser.executeScript(scr);
22305      }
22306
22307      it('should initialize to model', function() {
22308        expect(value.getText()).toContain('2013-W01');
22309        expect(valid.getText()).toContain('myForm.input.$valid = true');
22310      });
22311
22312      it('should be invalid if empty', function() {
22313        setInput('');
22314        expect(value.getText()).toEqual('value =');
22315        expect(valid.getText()).toContain('myForm.input.$valid = false');
22316      });
22317
22318      it('should be invalid if over max', function() {
22319        setInput('2015-W01');
22320        expect(value.getText()).toContain('');
22321        expect(valid.getText()).toContain('myForm.input.$valid = false');
22322      });
22323    </file>
22324    </example>
22325    */
22326  'week': createDateInputType('week', WEEK_REGEXP, weekParser, 'yyyy-Www'),
22327
22328  /**
22329   * @ngdoc input
22330   * @name input[month]
22331   *
22332   * @description
22333   * Input with month validation and transformation. In browsers that do not yet support
22334   * the HTML5 month input, a text element will be used. In that case, the text must be entered in a valid ISO-8601
22335   * month format (yyyy-MM), for example: `2009-01`.
22336   *
22337   * The model must always be a Date object, otherwise Angular will throw an error.
22338   * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string.
22339   * If the model is not set to the first of the month, the next view to model update will set it
22340   * to the first of the month.
22341   *
22342   * The timezone to be used to read/write the `Date` instance in the model can be defined using
22343   * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser.
22344   *
22345   * @param {string} ngModel Assignable angular expression to data-bind to.
22346   * @param {string=} name Property name of the form under which the control is published.
22347   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.
22348   *   This must be a valid ISO month format (yyyy-MM). You can also use interpolation inside this
22349   *   attribute (e.g. `min="{{minMonth | date:'yyyy-MM'}}"`). Note that `min` will also add
22350   *   native HTML5 constraint validation.
22351   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.
22352   *   This must be a valid ISO month format (yyyy-MM). You can also use interpolation inside this
22353   *   attribute (e.g. `max="{{maxMonth | date:'yyyy-MM'}}"`). Note that `max` will also add
22354   *   native HTML5 constraint validation.
22355   * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO week string
22356   *   the `ngMin` expression evaluates to. Note that it does not set the `min` attribute.
22357   * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO week string
22358   *   the `ngMax` expression evaluates to. Note that it does not set the `max` attribute.
22359
22360   * @param {string=} required Sets `required` validation error key if the value is not entered.
22361   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
22362   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of
22363   *    `required` when you want to data-bind to the `required` attribute.
22364   * @param {string=} ngChange Angular expression to be executed when input changes due to user
22365   *    interaction with the input element.
22366   *
22367   * @example
22368   <example name="month-input-directive" module="monthExample">
22369   <file name="index.html">
22370     <script>
22371      angular.module('monthExample', [])
22372        .controller('DateController', ['$scope', function($scope) {
22373          $scope.example = {
22374            value: new Date(2013, 9, 1)
22375          };
22376        }]);
22377     </script>
22378     <form name="myForm" ng-controller="DateController as dateCtrl">
22379       <label for="exampleInput">Pick a month in 2013:</label>
22380       <input id="exampleInput" type="month" name="input" ng-model="example.value"
22381          placeholder="yyyy-MM" min="2013-01" max="2013-12" required />
22382       <div role="alert">
22383         <span class="error" ng-show="myForm.input.$error.required">
22384            Required!</span>
22385         <span class="error" ng-show="myForm.input.$error.month">
22386            Not a valid month!</span>
22387       </div>
22388       <tt>value = {{example.value | date: "yyyy-MM"}}</tt><br/>
22389       <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>
22390       <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>
22391       <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
22392       <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
22393     </form>
22394   </file>
22395   <file name="protractor.js" type="protractor">
22396      var value = element(by.binding('example.value | date: "yyyy-MM"'));
22397      var valid = element(by.binding('myForm.input.$valid'));
22398      var input = element(by.model('example.value'));
22399
22400      // currently protractor/webdriver does not support
22401      // sending keys to all known HTML5 input controls
22402      // for various browsers (https://github.com/angular/protractor/issues/562).
22403      function setInput(val) {
22404        // set the value of the element and force validation.
22405        var scr = "var ipt = document.getElementById('exampleInput'); " +
22406        "ipt.value = '" + val + "';" +
22407        "angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('" + val + "'); });";
22408        browser.executeScript(scr);
22409      }
22410
22411      it('should initialize to model', function() {
22412        expect(value.getText()).toContain('2013-10');
22413        expect(valid.getText()).toContain('myForm.input.$valid = true');
22414      });
22415
22416      it('should be invalid if empty', function() {
22417        setInput('');
22418        expect(value.getText()).toEqual('value =');
22419        expect(valid.getText()).toContain('myForm.input.$valid = false');
22420      });
22421
22422      it('should be invalid if over max', function() {
22423        setInput('2015-01');
22424        expect(value.getText()).toContain('');
22425        expect(valid.getText()).toContain('myForm.input.$valid = false');
22426      });
22427   </file>
22428   </example>
22429   */
22430  'month': createDateInputType('month', MONTH_REGEXP,
22431     createDateParser(MONTH_REGEXP, ['yyyy', 'MM']),
22432     'yyyy-MM'),
22433
22434  /**
22435   * @ngdoc input
22436   * @name input[number]
22437   *
22438   * @description
22439   * Text input with number validation and transformation. Sets the `number` validation
22440   * error if not a valid number.
22441   *
22442   * <div class="alert alert-warning">
22443   * The model must always be of type `number` otherwise Angular will throw an error.
22444   * Be aware that a string containing a number is not enough. See the {@link ngModel:numfmt}
22445   * error docs for more information and an example of how to convert your model if necessary.
22446   * </div>
22447   *
22448   * ## Issues with HTML5 constraint validation
22449   *
22450   * In browsers that follow the
22451   * [HTML5 specification](https://html.spec.whatwg.org/multipage/forms.html#number-state-%28type=number%29),
22452   * `input[number]` does not work as expected with {@link ngModelOptions `ngModelOptions.allowInvalid`}.
22453   * If a non-number is entered in the input, the browser will report the value as an empty string,
22454   * which means the view / model values in `ngModel` and subsequently the scope value
22455   * will also be an empty string.
22456   *
22457   *
22458   * @param {string} ngModel Assignable angular expression to data-bind to.
22459   * @param {string=} name Property name of the form under which the control is published.
22460   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.
22461   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.
22462   * @param {string=} required Sets `required` validation error key if the value is not entered.
22463   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
22464   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of
22465   *    `required` when you want to data-bind to the `required` attribute.
22466   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than
22467   *    minlength.
22468   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than
22469   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of
22470   *    any length.
22471   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string
22472   *    that contains the regular expression body that will be converted to a regular expression
22473   *    as in the ngPattern directive.
22474   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}
22475   *    does not match a RegExp found by evaluating the Angular expression given in the attribute value.
22476   *    If the expression evaluates to a RegExp object, then this is used directly.
22477   *    If the expression evaluates to a string, then it will be converted to a RegExp
22478   *    after wrapping it in `^` and `$` characters. For instance, `"abc"` will be converted to
22479   *    `new RegExp('^abc$')`.<br />
22480   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to
22481   *    start at the index of the last search's match, thus not taking the whole input value into
22482   *    account.
22483   * @param {string=} ngChange Angular expression to be executed when input changes due to user
22484   *    interaction with the input element.
22485   *
22486   * @example
22487      <example name="number-input-directive" module="numberExample">
22488        <file name="index.html">
22489         <script>
22490           angular.module('numberExample', [])
22491             .controller('ExampleController', ['$scope', function($scope) {
22492               $scope.example = {
22493                 value: 12
22494               };
22495             }]);
22496         </script>
22497         <form name="myForm" ng-controller="ExampleController">
22498           <label>Number:
22499             <input type="number" name="input" ng-model="example.value"
22500                    min="0" max="99" required>
22501          </label>
22502           <div role="alert">
22503             <span class="error" ng-show="myForm.input.$error.required">
22504               Required!</span>
22505             <span class="error" ng-show="myForm.input.$error.number">
22506               Not valid number!</span>
22507           </div>
22508           <tt>value = {{example.value}}</tt><br/>
22509           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>
22510           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>
22511           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
22512           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
22513          </form>
22514        </file>
22515        <file name="protractor.js" type="protractor">
22516          var value = element(by.binding('example.value'));
22517          var valid = element(by.binding('myForm.input.$valid'));
22518          var input = element(by.model('example.value'));
22519
22520          it('should initialize to model', function() {
22521            expect(value.getText()).toContain('12');
22522            expect(valid.getText()).toContain('true');
22523          });
22524
22525          it('should be invalid if empty', function() {
22526            input.clear();
22527            input.sendKeys('');
22528            expect(value.getText()).toEqual('value =');
22529            expect(valid.getText()).toContain('false');
22530          });
22531
22532          it('should be invalid if over max', function() {
22533            input.clear();
22534            input.sendKeys('123');
22535            expect(value.getText()).toEqual('value =');
22536            expect(valid.getText()).toContain('false');
22537          });
22538        </file>
22539      </example>
22540   */
22541  'number': numberInputType,
22542
22543
22544  /**
22545   * @ngdoc input
22546   * @name input[url]
22547   *
22548   * @description
22549   * Text input with URL validation. Sets the `url` validation error key if the content is not a
22550   * valid URL.
22551   *
22552   * <div class="alert alert-warning">
22553   * **Note:** `input[url]` uses a regex to validate urls that is derived from the regex
22554   * used in Chromium. If you need stricter validation, you can use `ng-pattern` or modify
22555   * the built-in validators (see the {@link guide/forms Forms guide})
22556   * </div>
22557   *
22558   * @param {string} ngModel Assignable angular expression to data-bind to.
22559   * @param {string=} name Property name of the form under which the control is published.
22560   * @param {string=} required Sets `required` validation error key if the value is not entered.
22561   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
22562   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of
22563   *    `required` when you want to data-bind to the `required` attribute.
22564   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than
22565   *    minlength.
22566   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than
22567   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of
22568   *    any length.
22569   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string
22570   *    that contains the regular expression body that will be converted to a regular expression
22571   *    as in the ngPattern directive.
22572   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}
22573   *    does not match a RegExp found by evaluating the Angular expression given in the attribute value.
22574   *    If the expression evaluates to a RegExp object, then this is used directly.
22575   *    If the expression evaluates to a string, then it will be converted to a RegExp
22576   *    after wrapping it in `^` and `$` characters. For instance, `"abc"` will be converted to
22577   *    `new RegExp('^abc$')`.<br />
22578   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to
22579   *    start at the index of the last search's match, thus not taking the whole input value into
22580   *    account.
22581   * @param {string=} ngChange Angular expression to be executed when input changes due to user
22582   *    interaction with the input element.
22583   *
22584   * @example
22585      <example name="url-input-directive" module="urlExample">
22586        <file name="index.html">
22587         <script>
22588           angular.module('urlExample', [])
22589             .controller('ExampleController', ['$scope', function($scope) {
22590               $scope.url = {
22591                 text: 'http://google.com'
22592               };
22593             }]);
22594         </script>
22595         <form name="myForm" ng-controller="ExampleController">
22596           <label>URL:
22597             <input type="url" name="input" ng-model="url.text" required>
22598           <label>
22599           <div role="alert">
22600             <span class="error" ng-show="myForm.input.$error.required">
22601               Required!</span>
22602             <span class="error" ng-show="myForm.input.$error.url">
22603               Not valid url!</span>
22604           </div>
22605           <tt>text = {{url.text}}</tt><br/>
22606           <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>
22607           <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>
22608           <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
22609           <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
22610           <tt>myForm.$error.url = {{!!myForm.$error.url}}</tt><br/>
22611          </form>
22612        </file>
22613        <file name="protractor.js" type="protractor">
22614          var text = element(by.binding('url.text'));
22615          var valid = element(by.binding('myForm.input.$valid'));
22616          var input = element(by.model('url.text'));
22617
22618          it('should initialize to model', function() {
22619            expect(text.getText()).toContain('http://google.com');
22620            expect(valid.getText()).toContain('true');
22621          });
22622
22623          it('should be invalid if empty', function() {
22624            input.clear();
22625            input.sendKeys('');
22626
22627            expect(text.getText()).toEqual('text =');
22628            expect(valid.getText()).toContain('false');
22629          });
22630
22631          it('should be invalid if not url', function() {
22632            input.clear();
22633            input.sendKeys('box');
22634
22635            expect(valid.getText()).toContain('false');
22636          });
22637        </file>
22638      </example>
22639   */
22640  'url': urlInputType,
22641
22642
22643  /**
22644   * @ngdoc input
22645   * @name input[email]
22646   *
22647   * @description
22648   * Text input with email validation. Sets the `email` validation error key if not a valid email
22649   * address.
22650   *
22651   * <div class="alert alert-warning">
22652   * **Note:** `input[email]` uses a regex to validate email addresses that is derived from the regex
22653   * used in Chromium. If you need stricter validation (e.g. requiring a top-level domain), you can
22654   * use `ng-pattern` or modify the built-in validators (see the {@link guide/forms Forms guide})
22655   * </div>
22656   *
22657   * @param {string} ngModel Assignable angular expression to data-bind to.
22658   * @param {string=} name Property name of the form under which the control is published.
22659   * @param {string=} required Sets `required` validation error key if the value is not entered.
22660   * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
22661   *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of
22662   *    `required` when you want to data-bind to the `required` attribute.
22663   * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than
22664   *    minlength.
22665   * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than
22666   *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of
22667   *    any length.
22668   * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string
22669   *    that contains the regular expression body that will be converted to a regular expression
22670   *    as in the ngPattern directive.
22671   * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}
22672   *    does not match a RegExp found by evaluating the Angular expression given in the attribute value.
22673   *    If the expression evaluates to a RegExp object, then this is used directly.
22674   *    If the expression evaluates to a string, then it will be converted to a RegExp
22675   *    after wrapping it in `^` and `$` characters. For instance, `"abc"` will be converted to
22676   *    `new RegExp('^abc$')`.<br />
22677   *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to
22678   *    start at the index of the last search's match, thus not taking the whole input value into
22679   *    account.
22680   * @param {string=} ngChange Angular expression to be executed when input changes due to user
22681   *    interaction with the input element.
22682   *
22683   * @example
22684      <example name="email-input-directive" module="emailExample">
22685        <file name="index.html">
22686         <script>
22687           angular.module('emailExample', [])
22688             .controller('ExampleController', ['$scope', function($scope) {
22689               $scope.email = {
22690                 text: 'me@example.com'
22691               };
22692             }]);
22693         </script>
22694           <form name="myForm" ng-controller="ExampleController">
22695             <label>Email:
22696               <input type="email" name="input" ng-model="email.text" required>
22697             </label>
22698             <div role="alert">
22699               <span class="error" ng-show="myForm.input.$error.required">
22700                 Required!</span>
22701               <span class="error" ng-show="myForm.input.$error.email">
22702                 Not valid email!</span>
22703             </div>
22704             <tt>text = {{email.text}}</tt><br/>
22705             <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>
22706             <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>
22707             <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
22708             <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
22709             <tt>myForm.$error.email = {{!!myForm.$error.email}}</tt><br/>
22710           </form>
22711         </file>
22712        <file name="protractor.js" type="protractor">
22713          var text = element(by.binding('email.text'));
22714          var valid = element(by.binding('myForm.input.$valid'));
22715          var input = element(by.model('email.text'));
22716
22717          it('should initialize to model', function() {
22718            expect(text.getText()).toContain('me@example.com');
22719            expect(valid.getText()).toContain('true');
22720          });
22721
22722          it('should be invalid if empty', function() {
22723            input.clear();
22724            input.sendKeys('');
22725            expect(text.getText()).toEqual('text =');
22726            expect(valid.getText()).toContain('false');
22727          });
22728
22729          it('should be invalid if not email', function() {
22730            input.clear();
22731            input.sendKeys('xxx');
22732
22733            expect(valid.getText()).toContain('false');
22734          });
22735        </file>
22736      </example>
22737   */
22738  'email': emailInputType,
22739
22740
22741  /**
22742   * @ngdoc input
22743   * @name input[radio]
22744   *
22745   * @description
22746   * HTML radio button.
22747   *
22748   * @param {string} ngModel Assignable angular expression to data-bind to.
22749   * @param {string} value The value to which the `ngModel` expression should be set when selected.
22750   *    Note that `value` only supports `string` values, i.e. the scope model needs to be a string,
22751   *    too. Use `ngValue` if you need complex models (`number`, `object`, ...).
22752   * @param {string=} name Property name of the form under which the control is published.
22753   * @param {string=} ngChange Angular expression to be executed when input changes due to user
22754   *    interaction with the input element.
22755   * @param {string} ngValue Angular expression to which `ngModel` will be be set when the radio
22756   *    is selected. Should be used instead of the `value` attribute if you need
22757   *    a non-string `ngModel` (`boolean`, `array`, ...).
22758   *
22759   * @example
22760      <example name="radio-input-directive" module="radioExample">
22761        <file name="index.html">
22762         <script>
22763           angular.module('radioExample', [])
22764             .controller('ExampleController', ['$scope', function($scope) {
22765               $scope.color = {
22766                 name: 'blue'
22767               };
22768               $scope.specialValue = {
22769                 "id": "12345",
22770                 "value": "green"
22771               };
22772             }]);
22773         </script>
22774         <form name="myForm" ng-controller="ExampleController">
22775           <label>
22776             <input type="radio" ng-model="color.name" value="red">
22777             Red
22778           </label><br/>
22779           <label>
22780             <input type="radio" ng-model="color.name" ng-value="specialValue">
22781             Green
22782           </label><br/>
22783           <label>
22784             <input type="radio" ng-model="color.name" value="blue">
22785             Blue
22786           </label><br/>
22787           <tt>color = {{color.name | json}}</tt><br/>
22788          </form>
22789          Note that `ng-value="specialValue"` sets radio item's value to be the value of `$scope.specialValue`.
22790        </file>
22791        <file name="protractor.js" type="protractor">
22792          it('should change state', function() {
22793            var color = element(by.binding('color.name'));
22794
22795            expect(color.getText()).toContain('blue');
22796
22797            element.all(by.model('color.name')).get(0).click();
22798
22799            expect(color.getText()).toContain('red');
22800          });
22801        </file>
22802      </example>
22803   */
22804  'radio': radioInputType,
22805
22806
22807  /**
22808   * @ngdoc input
22809   * @name input[checkbox]
22810   *
22811   * @description
22812   * HTML checkbox.
22813   *
22814   * @param {string} ngModel Assignable angular expression to data-bind to.
22815   * @param {string=} name Property name of the form under which the control is published.
22816   * @param {expression=} ngTrueValue The value to which the expression should be set when selected.
22817   * @param {expression=} ngFalseValue The value to which the expression should be set when not selected.
22818   * @param {string=} ngChange Angular expression to be executed when input changes due to user
22819   *    interaction with the input element.
22820   *
22821   * @example
22822      <example name="checkbox-input-directive" module="checkboxExample">
22823        <file name="index.html">
22824         <script>
22825           angular.module('checkboxExample', [])
22826             .controller('ExampleController', ['$scope', function($scope) {
22827               $scope.checkboxModel = {
22828                value1 : true,
22829                value2 : 'YES'
22830              };
22831             }]);
22832         </script>
22833         <form name="myForm" ng-controller="ExampleController">
22834           <label>Value1:
22835             <input type="checkbox" ng-model="checkboxModel.value1">
22836           </label><br/>
22837           <label>Value2:
22838             <input type="checkbox" ng-model="checkboxModel.value2"
22839                    ng-true-value="'YES'" ng-false-value="'NO'">
22840            </label><br/>
22841           <tt>value1 = {{checkboxModel.value1}}</tt><br/>
22842           <tt>value2 = {{checkboxModel.value2}}</tt><br/>
22843          </form>
22844        </file>
22845        <file name="protractor.js" type="protractor">
22846          it('should change state', function() {
22847            var value1 = element(by.binding('checkboxModel.value1'));
22848            var value2 = element(by.binding('checkboxModel.value2'));
22849
22850            expect(value1.getText()).toContain('true');
22851            expect(value2.getText()).toContain('YES');
22852
22853            element(by.model('checkboxModel.value1')).click();
22854            element(by.model('checkboxModel.value2')).click();
22855
22856            expect(value1.getText()).toContain('false');
22857            expect(value2.getText()).toContain('NO');
22858          });
22859        </file>
22860      </example>
22861   */
22862  'checkbox': checkboxInputType,
22863
22864  'hidden': noop,
22865  'button': noop,
22866  'submit': noop,
22867  'reset': noop,
22868  'file': noop
22869};
22870
22871function stringBasedInputType(ctrl) {
22872  ctrl.$formatters.push(function(value) {
22873    return ctrl.$isEmpty(value) ? value : value.toString();
22874  });
22875}
22876
22877function textInputType(scope, element, attr, ctrl, $sniffer, $browser) {
22878  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);
22879  stringBasedInputType(ctrl);
22880}
22881
22882function baseInputType(scope, element, attr, ctrl, $sniffer, $browser) {
22883  var type = lowercase(element[0].type);
22884
22885  // In composition mode, users are still inputing intermediate text buffer,
22886  // hold the listener until composition is done.
22887  // More about composition events: https://developer.mozilla.org/en-US/docs/Web/API/CompositionEvent
22888  if (!$sniffer.android) {
22889    var composing = false;
22890
22891    element.on('compositionstart', function() {
22892      composing = true;
22893    });
22894
22895    element.on('compositionend', function() {
22896      composing = false;
22897      listener();
22898    });
22899  }
22900
22901  var timeout;
22902
22903  var listener = function(ev) {
22904    if (timeout) {
22905      $browser.defer.cancel(timeout);
22906      timeout = null;
22907    }
22908    if (composing) return;
22909    var value = element.val(),
22910        event = ev && ev.type;
22911
22912    // By default we will trim the value
22913    // If the attribute ng-trim exists we will avoid trimming
22914    // If input type is 'password', the value is never trimmed
22915    if (type !== 'password' && (!attr.ngTrim || attr.ngTrim !== 'false')) {
22916      value = trim(value);
22917    }
22918
22919    // If a control is suffering from bad input (due to native validators), browsers discard its
22920    // value, so it may be necessary to revalidate (by calling $setViewValue again) even if the
22921    // control's value is the same empty value twice in a row.
22922    if (ctrl.$viewValue !== value || (value === '' && ctrl.$$hasNativeValidators)) {
22923      ctrl.$setViewValue(value, event);
22924    }
22925  };
22926
22927  // if the browser does support "input" event, we are fine - except on IE9 which doesn't fire the
22928  // input event on backspace, delete or cut
22929  if ($sniffer.hasEvent('input')) {
22930    element.on('input', listener);
22931  } else {
22932    var deferListener = function(ev, input, origValue) {
22933      if (!timeout) {
22934        timeout = $browser.defer(function() {
22935          timeout = null;
22936          if (!input || input.value !== origValue) {
22937            listener(ev);
22938          }
22939        });
22940      }
22941    };
22942
22943    element.on('keydown', function(event) {
22944      var key = event.keyCode;
22945
22946      // ignore
22947      //    command            modifiers                   arrows
22948      if (key === 91 || (15 < key && key < 19) || (37 <= key && key <= 40)) return;
22949
22950      deferListener(event, this, this.value);
22951    });
22952
22953    // if user modifies input value using context menu in IE, we need "paste" and "cut" events to catch it
22954    if ($sniffer.hasEvent('paste')) {
22955      element.on('paste cut', deferListener);
22956    }
22957  }
22958
22959  // if user paste into input using mouse on older browser
22960  // or form autocomplete on newer browser, we need "change" event to catch it
22961  element.on('change', listener);
22962
22963  // Some native input types (date-family) have the ability to change validity without
22964  // firing any input/change events.
22965  // For these event types, when native validators are present and the browser supports the type,
22966  // check for validity changes on various DOM events.
22967  if (PARTIAL_VALIDATION_TYPES[type] && ctrl.$$hasNativeValidators && type === attr.type) {
22968    element.on(PARTIAL_VALIDATION_EVENTS, function(ev) {
22969      if (!timeout) {
22970        var validity = this[VALIDITY_STATE_PROPERTY];
22971        var origBadInput = validity.badInput;
22972        var origTypeMismatch = validity.typeMismatch;
22973        timeout = $browser.defer(function() {
22974          timeout = null;
22975          if (validity.badInput !== origBadInput || validity.typeMismatch !== origTypeMismatch) {
22976            listener(ev);
22977          }
22978        });
22979      }
22980    });
22981  }
22982
22983  ctrl.$render = function() {
22984    // Workaround for Firefox validation #12102.
22985    var value = ctrl.$isEmpty(ctrl.$viewValue) ? '' : ctrl.$viewValue;
22986    if (element.val() !== value) {
22987      element.val(value);
22988    }
22989  };
22990}
22991
22992function weekParser(isoWeek, existingDate) {
22993  if (isDate(isoWeek)) {
22994    return isoWeek;
22995  }
22996
22997  if (isString(isoWeek)) {
22998    WEEK_REGEXP.lastIndex = 0;
22999    var parts = WEEK_REGEXP.exec(isoWeek);
23000    if (parts) {
23001      var year = +parts[1],
23002          week = +parts[2],
23003          hours = 0,
23004          minutes = 0,
23005          seconds = 0,
23006          milliseconds = 0,
23007          firstThurs = getFirstThursdayOfYear(year),
23008          addDays = (week - 1) * 7;
23009
23010      if (existingDate) {
23011        hours = existingDate.getHours();
23012        minutes = existingDate.getMinutes();
23013        seconds = existingDate.getSeconds();
23014        milliseconds = existingDate.getMilliseconds();
23015      }
23016
23017      return new Date(year, 0, firstThurs.getDate() + addDays, hours, minutes, seconds, milliseconds);
23018    }
23019  }
23020
23021  return NaN;
23022}
23023
23024function createDateParser(regexp, mapping) {
23025  return function(iso, date) {
23026    var parts, map;
23027
23028    if (isDate(iso)) {
23029      return iso;
23030    }
23031
23032    if (isString(iso)) {
23033      // When a date is JSON'ified to wraps itself inside of an extra
23034      // set of double quotes. This makes the date parsing code unable
23035      // to match the date string and parse it as a date.
23036      if (iso.charAt(0) == '"' && iso.charAt(iso.length - 1) == '"') {
23037        iso = iso.substring(1, iso.length - 1);
23038      }
23039      if (ISO_DATE_REGEXP.test(iso)) {
23040        return new Date(iso);
23041      }
23042      regexp.lastIndex = 0;
23043      parts = regexp.exec(iso);
23044
23045      if (parts) {
23046        parts.shift();
23047        if (date) {
23048          map = {
23049            yyyy: date.getFullYear(),
23050            MM: date.getMonth() + 1,
23051            dd: date.getDate(),
23052            HH: date.getHours(),
23053            mm: date.getMinutes(),
23054            ss: date.getSeconds(),
23055            sss: date.getMilliseconds() / 1000
23056          };
23057        } else {
23058          map = { yyyy: 1970, MM: 1, dd: 1, HH: 0, mm: 0, ss: 0, sss: 0 };
23059        }
23060
23061        forEach(parts, function(part, index) {
23062          if (index < mapping.length) {
23063            map[mapping[index]] = +part;
23064          }
23065        });
23066        return new Date(map.yyyy, map.MM - 1, map.dd, map.HH, map.mm, map.ss || 0, map.sss * 1000 || 0);
23067      }
23068    }
23069
23070    return NaN;
23071  };
23072}
23073
23074function createDateInputType(type, regexp, parseDate, format) {
23075  return function dynamicDateInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter) {
23076    badInputChecker(scope, element, attr, ctrl);
23077    baseInputType(scope, element, attr, ctrl, $sniffer, $browser);
23078    var timezone = ctrl && ctrl.$options && ctrl.$options.timezone;
23079    var previousDate;
23080
23081    ctrl.$$parserName = type;
23082    ctrl.$parsers.push(function(value) {
23083      if (ctrl.$isEmpty(value)) return null;
23084      if (regexp.test(value)) {
23085        // Note: We cannot read ctrl.$modelValue, as there might be a different
23086        // parser/formatter in the processing chain so that the model
23087        // contains some different data format!
23088        var parsedDate = parseDate(value, previousDate);
23089        if (timezone) {
23090          parsedDate = convertTimezoneToLocal(parsedDate, timezone);
23091        }
23092        return parsedDate;
23093      }
23094      return undefined;
23095    });
23096
23097    ctrl.$formatters.push(function(value) {
23098      if (value && !isDate(value)) {
23099        throw ngModelMinErr('datefmt', 'Expected `{0}` to be a date', value);
23100      }
23101      if (isValidDate(value)) {
23102        previousDate = value;
23103        if (previousDate && timezone) {
23104          previousDate = convertTimezoneToLocal(previousDate, timezone, true);
23105        }
23106        return $filter('date')(value, format, timezone);
23107      } else {
23108        previousDate = null;
23109        return '';
23110      }
23111    });
23112
23113    if (isDefined(attr.min) || attr.ngMin) {
23114      var minVal;
23115      ctrl.$validators.min = function(value) {
23116        return !isValidDate(value) || isUndefined(minVal) || parseDate(value) >= minVal;
23117      };
23118      attr.$observe('min', function(val) {
23119        minVal = parseObservedDateValue(val);
23120        ctrl.$validate();
23121      });
23122    }
23123
23124    if (isDefined(attr.max) || attr.ngMax) {
23125      var maxVal;
23126      ctrl.$validators.max = function(value) {
23127        return !isValidDate(value) || isUndefined(maxVal) || parseDate(value) <= maxVal;
23128      };
23129      attr.$observe('max', function(val) {
23130        maxVal = parseObservedDateValue(val);
23131        ctrl.$validate();
23132      });
23133    }
23134
23135    function isValidDate(value) {
23136      // Invalid Date: getTime() returns NaN
23137      return value && !(value.getTime && value.getTime() !== value.getTime());
23138    }
23139
23140    function parseObservedDateValue(val) {
23141      return isDefined(val) && !isDate(val) ? parseDate(val) || undefined : val;
23142    }
23143  };
23144}
23145
23146function badInputChecker(scope, element, attr, ctrl) {
23147  var node = element[0];
23148  var nativeValidation = ctrl.$$hasNativeValidators = isObject(node.validity);
23149  if (nativeValidation) {
23150    ctrl.$parsers.push(function(value) {
23151      var validity = element.prop(VALIDITY_STATE_PROPERTY) || {};
23152      return validity.badInput || validity.typeMismatch ? undefined : value;
23153    });
23154  }
23155}
23156
23157function numberInputType(scope, element, attr, ctrl, $sniffer, $browser) {
23158  badInputChecker(scope, element, attr, ctrl);
23159  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);
23160
23161  ctrl.$$parserName = 'number';
23162  ctrl.$parsers.push(function(value) {
23163    if (ctrl.$isEmpty(value))      return null;
23164    if (NUMBER_REGEXP.test(value)) return parseFloat(value);
23165    return undefined;
23166  });
23167
23168  ctrl.$formatters.push(function(value) {
23169    if (!ctrl.$isEmpty(value)) {
23170      if (!isNumber(value)) {
23171        throw ngModelMinErr('numfmt', 'Expected `{0}` to be a number', value);
23172      }
23173      value = value.toString();
23174    }
23175    return value;
23176  });
23177
23178  if (isDefined(attr.min) || attr.ngMin) {
23179    var minVal;
23180    ctrl.$validators.min = function(value) {
23181      return ctrl.$isEmpty(value) || isUndefined(minVal) || value >= minVal;
23182    };
23183
23184    attr.$observe('min', function(val) {
23185      if (isDefined(val) && !isNumber(val)) {
23186        val = parseFloat(val, 10);
23187      }
23188      minVal = isNumber(val) && !isNaN(val) ? val : undefined;
23189      // TODO(matsko): implement validateLater to reduce number of validations
23190      ctrl.$validate();
23191    });
23192  }
23193
23194  if (isDefined(attr.max) || attr.ngMax) {
23195    var maxVal;
23196    ctrl.$validators.max = function(value) {
23197      return ctrl.$isEmpty(value) || isUndefined(maxVal) || value <= maxVal;
23198    };
23199
23200    attr.$observe('max', function(val) {
23201      if (isDefined(val) && !isNumber(val)) {
23202        val = parseFloat(val, 10);
23203      }
23204      maxVal = isNumber(val) && !isNaN(val) ? val : undefined;
23205      // TODO(matsko): implement validateLater to reduce number of validations
23206      ctrl.$validate();
23207    });
23208  }
23209}
23210
23211function urlInputType(scope, element, attr, ctrl, $sniffer, $browser) {
23212  // Note: no badInputChecker here by purpose as `url` is only a validation
23213  // in browsers, i.e. we can always read out input.value even if it is not valid!
23214  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);
23215  stringBasedInputType(ctrl);
23216
23217  ctrl.$$parserName = 'url';
23218  ctrl.$validators.url = function(modelValue, viewValue) {
23219    var value = modelValue || viewValue;
23220    return ctrl.$isEmpty(value) || URL_REGEXP.test(value);
23221  };
23222}
23223
23224function emailInputType(scope, element, attr, ctrl, $sniffer, $browser) {
23225  // Note: no badInputChecker here by purpose as `url` is only a validation
23226  // in browsers, i.e. we can always read out input.value even if it is not valid!
23227  baseInputType(scope, element, attr, ctrl, $sniffer, $browser);
23228  stringBasedInputType(ctrl);
23229
23230  ctrl.$$parserName = 'email';
23231  ctrl.$validators.email = function(modelValue, viewValue) {
23232    var value = modelValue || viewValue;
23233    return ctrl.$isEmpty(value) || EMAIL_REGEXP.test(value);
23234  };
23235}
23236
23237function radioInputType(scope, element, attr, ctrl) {
23238  // make the name unique, if not defined
23239  if (isUndefined(attr.name)) {
23240    element.attr('name', nextUid());
23241  }
23242
23243  var listener = function(ev) {
23244    if (element[0].checked) {
23245      ctrl.$setViewValue(attr.value, ev && ev.type);
23246    }
23247  };
23248
23249  element.on('click', listener);
23250
23251  ctrl.$render = function() {
23252    var value = attr.value;
23253    element[0].checked = (value == ctrl.$viewValue);
23254  };
23255
23256  attr.$observe('value', ctrl.$render);
23257}
23258
23259function parseConstantExpr($parse, context, name, expression, fallback) {
23260  var parseFn;
23261  if (isDefined(expression)) {
23262    parseFn = $parse(expression);
23263    if (!parseFn.constant) {
23264      throw ngModelMinErr('constexpr', 'Expected constant expression for `{0}`, but saw ' +
23265                                   '`{1}`.', name, expression);
23266    }
23267    return parseFn(context);
23268  }
23269  return fallback;
23270}
23271
23272function checkboxInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter, $parse) {
23273  var trueValue = parseConstantExpr($parse, scope, 'ngTrueValue', attr.ngTrueValue, true);
23274  var falseValue = parseConstantExpr($parse, scope, 'ngFalseValue', attr.ngFalseValue, false);
23275
23276  var listener = function(ev) {
23277    ctrl.$setViewValue(element[0].checked, ev && ev.type);
23278  };
23279
23280  element.on('click', listener);
23281
23282  ctrl.$render = function() {
23283    element[0].checked = ctrl.$viewValue;
23284  };
23285
23286  // Override the standard `$isEmpty` because the $viewValue of an empty checkbox is always set to `false`
23287  // This is because of the parser below, which compares the `$modelValue` with `trueValue` to convert
23288  // it to a boolean.
23289  ctrl.$isEmpty = function(value) {
23290    return value === false;
23291  };
23292
23293  ctrl.$formatters.push(function(value) {
23294    return equals(value, trueValue);
23295  });
23296
23297  ctrl.$parsers.push(function(value) {
23298    return value ? trueValue : falseValue;
23299  });
23300}
23301
23302
23303/**
23304 * @ngdoc directive
23305 * @name textarea
23306 * @restrict E
23307 *
23308 * @description
23309 * HTML textarea element control with angular data-binding. The data-binding and validation
23310 * properties of this element are exactly the same as those of the
23311 * {@link ng.directive:input input element}.
23312 *
23313 * @param {string} ngModel Assignable angular expression to data-bind to.
23314 * @param {string=} name Property name of the form under which the control is published.
23315 * @param {string=} required Sets `required` validation error key if the value is not entered.
23316 * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
23317 *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of
23318 *    `required` when you want to data-bind to the `required` attribute.
23319 * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than
23320 *    minlength.
23321 * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than
23322 *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of any
23323 *    length.
23324 * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}
23325 *    does not match a RegExp found by evaluating the Angular expression given in the attribute value.
23326 *    If the expression evaluates to a RegExp object, then this is used directly.
23327 *    If the expression evaluates to a string, then it will be converted to a RegExp
23328 *    after wrapping it in `^` and `$` characters. For instance, `"abc"` will be converted to
23329 *    `new RegExp('^abc$')`.<br />
23330 *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to
23331 *    start at the index of the last search's match, thus not taking the whole input value into
23332 *    account.
23333 * @param {string=} ngChange Angular expression to be executed when input changes due to user
23334 *    interaction with the input element.
23335 * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input.
23336 */
23337
23338
23339/**
23340 * @ngdoc directive
23341 * @name input
23342 * @restrict E
23343 *
23344 * @description
23345 * HTML input element control. When used together with {@link ngModel `ngModel`}, it provides data-binding,
23346 * input state control, and validation.
23347 * Input control follows HTML5 input types and polyfills the HTML5 validation behavior for older browsers.
23348 *
23349 * <div class="alert alert-warning">
23350 * **Note:** Not every feature offered is available for all input types.
23351 * Specifically, data binding and event handling via `ng-model` is unsupported for `input[file]`.
23352 * </div>
23353 *
23354 * @param {string} ngModel Assignable angular expression to data-bind to.
23355 * @param {string=} name Property name of the form under which the control is published.
23356 * @param {string=} required Sets `required` validation error key if the value is not entered.
23357 * @param {boolean=} ngRequired Sets `required` attribute if set to true
23358 * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than
23359 *    minlength.
23360 * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than
23361 *    maxlength. Setting the attribute to a negative or non-numeric value, allows view values of any
23362 *    length.
23363 * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue}
23364 *    value does not match a RegExp found by evaluating the Angular expression given in the attribute value.
23365 *    If the expression evaluates to a RegExp object, then this is used directly.
23366 *    If the expression evaluates to a string, then it will be converted to a RegExp
23367 *    after wrapping it in `^` and `$` characters. For instance, `"abc"` will be converted to
23368 *    `new RegExp('^abc$')`.<br />
23369 *    **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to
23370 *    start at the index of the last search's match, thus not taking the whole input value into
23371 *    account.
23372 * @param {string=} ngChange Angular expression to be executed when input changes due to user
23373 *    interaction with the input element.
23374 * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input.
23375 *    This parameter is ignored for input[type=password] controls, which will never trim the
23376 *    input.
23377 *
23378 * @example
23379    <example name="input-directive" module="inputExample">
23380      <file name="index.html">
23381       <script>
23382          angular.module('inputExample', [])
23383            .controller('ExampleController', ['$scope', function($scope) {
23384              $scope.user = {name: 'guest', last: 'visitor'};
23385            }]);
23386       </script>
23387       <div ng-controller="ExampleController">
23388         <form name="myForm">
23389           <label>
23390              User name:
23391              <input type="text" name="userName" ng-model="user.name" required>
23392           </label>
23393           <div role="alert">
23394             <span class="error" ng-show="myForm.userName.$error.required">
23395              Required!</span>
23396           </div>
23397           <label>
23398              Last name:
23399              <input type="text" name="lastName" ng-model="user.last"
23400              ng-minlength="3" ng-maxlength="10">
23401           </label>
23402           <div role="alert">
23403             <span class="error" ng-show="myForm.lastName.$error.minlength">
23404               Too short!</span>
23405             <span class="error" ng-show="myForm.lastName.$error.maxlength">
23406               Too long!</span>
23407           </div>
23408         </form>
23409         <hr>
23410         <tt>user = {{user}}</tt><br/>
23411         <tt>myForm.userName.$valid = {{myForm.userName.$valid}}</tt><br/>
23412         <tt>myForm.userName.$error = {{myForm.userName.$error}}</tt><br/>
23413         <tt>myForm.lastName.$valid = {{myForm.lastName.$valid}}</tt><br/>
23414         <tt>myForm.lastName.$error = {{myForm.lastName.$error}}</tt><br/>
23415         <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
23416         <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
23417         <tt>myForm.$error.minlength = {{!!myForm.$error.minlength}}</tt><br/>
23418         <tt>myForm.$error.maxlength = {{!!myForm.$error.maxlength}}</tt><br/>
23419       </div>
23420      </file>
23421      <file name="protractor.js" type="protractor">
23422        var user = element(by.exactBinding('user'));
23423        var userNameValid = element(by.binding('myForm.userName.$valid'));
23424        var lastNameValid = element(by.binding('myForm.lastName.$valid'));
23425        var lastNameError = element(by.binding('myForm.lastName.$error'));
23426        var formValid = element(by.binding('myForm.$valid'));
23427        var userNameInput = element(by.model('user.name'));
23428        var userLastInput = element(by.model('user.last'));
23429
23430        it('should initialize to model', function() {
23431          expect(user.getText()).toContain('{"name":"guest","last":"visitor"}');
23432          expect(userNameValid.getText()).toContain('true');
23433          expect(formValid.getText()).toContain('true');
23434        });
23435
23436        it('should be invalid if empty when required', function() {
23437          userNameInput.clear();
23438          userNameInput.sendKeys('');
23439
23440          expect(user.getText()).toContain('{"last":"visitor"}');
23441          expect(userNameValid.getText()).toContain('false');
23442          expect(formValid.getText()).toContain('false');
23443        });
23444
23445        it('should be valid if empty when min length is set', function() {
23446          userLastInput.clear();
23447          userLastInput.sendKeys('');
23448
23449          expect(user.getText()).toContain('{"name":"guest","last":""}');
23450          expect(lastNameValid.getText()).toContain('true');
23451          expect(formValid.getText()).toContain('true');
23452        });
23453
23454        it('should be invalid if less than required min length', function() {
23455          userLastInput.clear();
23456          userLastInput.sendKeys('xx');
23457
23458          expect(user.getText()).toContain('{"name":"guest"}');
23459          expect(lastNameValid.getText()).toContain('false');
23460          expect(lastNameError.getText()).toContain('minlength');
23461          expect(formValid.getText()).toContain('false');
23462        });
23463
23464        it('should be invalid if longer than max length', function() {
23465          userLastInput.clear();
23466          userLastInput.sendKeys('some ridiculously long name');
23467
23468          expect(user.getText()).toContain('{"name":"guest"}');
23469          expect(lastNameValid.getText()).toContain('false');
23470          expect(lastNameError.getText()).toContain('maxlength');
23471          expect(formValid.getText()).toContain('false');
23472        });
23473      </file>
23474    </example>
23475 */
23476var inputDirective = ['$browser', '$sniffer', '$filter', '$parse',
23477    function($browser, $sniffer, $filter, $parse) {
23478  return {
23479    restrict: 'E',
23480    require: ['?ngModel'],
23481    link: {
23482      pre: function(scope, element, attr, ctrls) {
23483        if (ctrls[0]) {
23484          (inputType[lowercase(attr.type)] || inputType.text)(scope, element, attr, ctrls[0], $sniffer,
23485                                                              $browser, $filter, $parse);
23486        }
23487      }
23488    }
23489  };
23490}];
23491
23492
23493
23494var CONSTANT_VALUE_REGEXP = /^(true|false|\d+)$/;
23495/**
23496 * @ngdoc directive
23497 * @name ngValue
23498 *
23499 * @description
23500 * Binds the given expression to the value of `<option>` or {@link input[radio] `input[radio]`},
23501 * so that when the element is selected, the {@link ngModel `ngModel`} of that element is set to
23502 * the bound value.
23503 *
23504 * `ngValue` is useful when dynamically generating lists of radio buttons using
23505 * {@link ngRepeat `ngRepeat`}, as shown below.
23506 *
23507 * Likewise, `ngValue` can be used to generate `<option>` elements for
23508 * the {@link select `select`} element. In that case however, only strings are supported
23509 * for the `value `attribute, so the resulting `ngModel` will always be a string.
23510 * Support for `select` models with non-string values is available via `ngOptions`.
23511 *
23512 * @element input
23513 * @param {string=} ngValue angular expression, whose value will be bound to the `value` attribute
23514 *   of the `input` element
23515 *
23516 * @example
23517    <example name="ngValue-directive" module="valueExample">
23518      <file name="index.html">
23519       <script>
23520          angular.module('valueExample', [])
23521            .controller('ExampleController', ['$scope', function($scope) {
23522              $scope.names = ['pizza', 'unicorns', 'robots'];
23523              $scope.my = { favorite: 'unicorns' };
23524            }]);
23525       </script>
23526        <form ng-controller="ExampleController">
23527          <h2>Which is your favorite?</h2>
23528            <label ng-repeat="name in names" for="{{name}}">
23529              {{name}}
23530              <input type="radio"
23531                     ng-model="my.favorite"
23532                     ng-value="name"
23533                     id="{{name}}"
23534                     name="favorite">
23535            </label>
23536          <div>You chose {{my.favorite}}</div>
23537        </form>
23538      </file>
23539      <file name="protractor.js" type="protractor">
23540        var favorite = element(by.binding('my.favorite'));
23541
23542        it('should initialize to model', function() {
23543          expect(favorite.getText()).toContain('unicorns');
23544        });
23545        it('should bind the values to the inputs', function() {
23546          element.all(by.model('my.favorite')).get(0).click();
23547          expect(favorite.getText()).toContain('pizza');
23548        });
23549      </file>
23550    </example>
23551 */
23552var ngValueDirective = function() {
23553  return {
23554    restrict: 'A',
23555    priority: 100,
23556    compile: function(tpl, tplAttr) {
23557      if (CONSTANT_VALUE_REGEXP.test(tplAttr.ngValue)) {
23558        return function ngValueConstantLink(scope, elm, attr) {
23559          attr.$set('value', scope.$eval(attr.ngValue));
23560        };
23561      } else {
23562        return function ngValueLink(scope, elm, attr) {
23563          scope.$watch(attr.ngValue, function valueWatchAction(value) {
23564            attr.$set('value', value);
23565          });
23566        };
23567      }
23568    }
23569  };
23570};
23571
23572/**
23573 * @ngdoc directive
23574 * @name ngBind
23575 * @restrict AC
23576 *
23577 * @description
23578 * The `ngBind` attribute tells Angular to replace the text content of the specified HTML element
23579 * with the value of a given expression, and to update the text content when the value of that
23580 * expression changes.
23581 *
23582 * Typically, you don't use `ngBind` directly, but instead you use the double curly markup like
23583 * `{{ expression }}` which is similar but less verbose.
23584 *
23585 * It is preferable to use `ngBind` instead of `{{ expression }}` if a template is momentarily
23586 * displayed by the browser in its raw state before Angular compiles it. Since `ngBind` is an
23587 * element attribute, it makes the bindings invisible to the user while the page is loading.
23588 *
23589 * An alternative solution to this problem would be using the
23590 * {@link ng.directive:ngCloak ngCloak} directive.
23591 *
23592 *
23593 * @element ANY
23594 * @param {expression} ngBind {@link guide/expression Expression} to evaluate.
23595 *
23596 * @example
23597 * Enter a name in the Live Preview text box; the greeting below the text box changes instantly.
23598   <example module="bindExample">
23599     <file name="index.html">
23600       <script>
23601         angular.module('bindExample', [])
23602           .controller('ExampleController', ['$scope', function($scope) {
23603             $scope.name = 'Whirled';
23604           }]);
23605       </script>
23606       <div ng-controller="ExampleController">
23607         <label>Enter name: <input type="text" ng-model="name"></label><br>
23608         Hello <span ng-bind="name"></span>!
23609       </div>
23610     </file>
23611     <file name="protractor.js" type="protractor">
23612       it('should check ng-bind', function() {
23613         var nameInput = element(by.model('name'));
23614
23615         expect(element(by.binding('name')).getText()).toBe('Whirled');
23616         nameInput.clear();
23617         nameInput.sendKeys('world');
23618         expect(element(by.binding('name')).getText()).toBe('world');
23619       });
23620     </file>
23621   </example>
23622 */
23623var ngBindDirective = ['$compile', function($compile) {
23624  return {
23625    restrict: 'AC',
23626    compile: function ngBindCompile(templateElement) {
23627      $compile.$$addBindingClass(templateElement);
23628      return function ngBindLink(scope, element, attr) {
23629        $compile.$$addBindingInfo(element, attr.ngBind);
23630        element = element[0];
23631        scope.$watch(attr.ngBind, function ngBindWatchAction(value) {
23632          element.textContent = isUndefined(value) ? '' : value;
23633        });
23634      };
23635    }
23636  };
23637}];
23638
23639
23640/**
23641 * @ngdoc directive
23642 * @name ngBindTemplate
23643 *
23644 * @description
23645 * The `ngBindTemplate` directive specifies that the element
23646 * text content should be replaced with the interpolation of the template
23647 * in the `ngBindTemplate` attribute.
23648 * Unlike `ngBind`, the `ngBindTemplate` can contain multiple `{{` `}}`
23649 * expressions. This directive is needed since some HTML elements
23650 * (such as TITLE and OPTION) cannot contain SPAN elements.
23651 *
23652 * @element ANY
23653 * @param {string} ngBindTemplate template of form
23654 *   <tt>{{</tt> <tt>expression</tt> <tt>}}</tt> to eval.
23655 *
23656 * @example
23657 * Try it here: enter text in text box and watch the greeting change.
23658   <example module="bindExample">
23659     <file name="index.html">
23660       <script>
23661         angular.module('bindExample', [])
23662           .controller('ExampleController', ['$scope', function($scope) {
23663             $scope.salutation = 'Hello';
23664             $scope.name = 'World';
23665           }]);
23666       </script>
23667       <div ng-controller="ExampleController">
23668        <label>Salutation: <input type="text" ng-model="salutation"></label><br>
23669        <label>Name: <input type="text" ng-model="name"></label><br>
23670        <pre ng-bind-template="{{salutation}} {{name}}!"></pre>
23671       </div>
23672     </file>
23673     <file name="protractor.js" type="protractor">
23674       it('should check ng-bind', function() {
23675         var salutationElem = element(by.binding('salutation'));
23676         var salutationInput = element(by.model('salutation'));
23677         var nameInput = element(by.model('name'));
23678
23679         expect(salutationElem.getText()).toBe('Hello World!');
23680
23681         salutationInput.clear();
23682         salutationInput.sendKeys('Greetings');
23683         nameInput.clear();
23684         nameInput.sendKeys('user');
23685
23686         expect(salutationElem.getText()).toBe('Greetings user!');
23687       });
23688     </file>
23689   </example>
23690 */
23691var ngBindTemplateDirective = ['$interpolate', '$compile', function($interpolate, $compile) {
23692  return {
23693    compile: function ngBindTemplateCompile(templateElement) {
23694      $compile.$$addBindingClass(templateElement);
23695      return function ngBindTemplateLink(scope, element, attr) {
23696        var interpolateFn = $interpolate(element.attr(attr.$attr.ngBindTemplate));
23697        $compile.$$addBindingInfo(element, interpolateFn.expressions);
23698        element = element[0];
23699        attr.$observe('ngBindTemplate', function(value) {
23700          element.textContent = isUndefined(value) ? '' : value;
23701        });
23702      };
23703    }
23704  };
23705}];
23706
23707
23708/**
23709 * @ngdoc directive
23710 * @name ngBindHtml
23711 *
23712 * @description
23713 * Evaluates the expression and inserts the resulting HTML into the element in a secure way. By default,
23714 * the resulting HTML content will be sanitized using the {@link ngSanitize.$sanitize $sanitize} service.
23715 * To utilize this functionality, ensure that `$sanitize` is available, for example, by including {@link
23716 * ngSanitize} in your module's dependencies (not in core Angular). In order to use {@link ngSanitize}
23717 * in your module's dependencies, you need to include "angular-sanitize.js" in your application.
23718 *
23719 * You may also bypass sanitization for values you know are safe. To do so, bind to
23720 * an explicitly trusted value via {@link ng.$sce#trustAsHtml $sce.trustAsHtml}.  See the example
23721 * under {@link ng.$sce#show-me-an-example-using-sce- Strict Contextual Escaping (SCE)}.
23722 *
23723 * Note: If a `$sanitize` service is unavailable and the bound value isn't explicitly trusted, you
23724 * will have an exception (instead of an exploit.)
23725 *
23726 * @element ANY
23727 * @param {expression} ngBindHtml {@link guide/expression Expression} to evaluate.
23728 *
23729 * @example
23730
23731   <example module="bindHtmlExample" deps="angular-sanitize.js">
23732     <file name="index.html">
23733       <div ng-controller="ExampleController">
23734        <p ng-bind-html="myHTML"></p>
23735       </div>
23736     </file>
23737
23738     <file name="script.js">
23739       angular.module('bindHtmlExample', ['ngSanitize'])
23740         .controller('ExampleController', ['$scope', function($scope) {
23741           $scope.myHTML =
23742              'I am an <code>HTML</code>string with ' +
23743              '<a href="#">links!</a> and other <em>stuff</em>';
23744         }]);
23745     </file>
23746
23747     <file name="protractor.js" type="protractor">
23748       it('should check ng-bind-html', function() {
23749         expect(element(by.binding('myHTML')).getText()).toBe(
23750             'I am an HTMLstring with links! and other stuff');
23751       });
23752     </file>
23753   </example>
23754 */
23755var ngBindHtmlDirective = ['$sce', '$parse', '$compile', function($sce, $parse, $compile) {
23756  return {
23757    restrict: 'A',
23758    compile: function ngBindHtmlCompile(tElement, tAttrs) {
23759      var ngBindHtmlGetter = $parse(tAttrs.ngBindHtml);
23760      var ngBindHtmlWatch = $parse(tAttrs.ngBindHtml, function getStringValue(value) {
23761        return (value || '').toString();
23762      });
23763      $compile.$$addBindingClass(tElement);
23764
23765      return function ngBindHtmlLink(scope, element, attr) {
23766        $compile.$$addBindingInfo(element, attr.ngBindHtml);
23767
23768        scope.$watch(ngBindHtmlWatch, function ngBindHtmlWatchAction() {
23769          // we re-evaluate the expr because we want a TrustedValueHolderType
23770          // for $sce, not a string
23771          element.html($sce.getTrustedHtml(ngBindHtmlGetter(scope)) || '');
23772        });
23773      };
23774    }
23775  };
23776}];
23777
23778/**
23779 * @ngdoc directive
23780 * @name ngChange
23781 *
23782 * @description
23783 * Evaluate the given expression when the user changes the input.
23784 * The expression is evaluated immediately, unlike the JavaScript onchange event
23785 * which only triggers at the end of a change (usually, when the user leaves the
23786 * form element or presses the return key).
23787 *
23788 * The `ngChange` expression is only evaluated when a change in the input value causes
23789 * a new value to be committed to the model.
23790 *
23791 * It will not be evaluated:
23792 * * if the value returned from the `$parsers` transformation pipeline has not changed
23793 * * if the input has continued to be invalid since the model will stay `null`
23794 * * if the model is changed programmatically and not by a change to the input value
23795 *
23796 *
23797 * Note, this directive requires `ngModel` to be present.
23798 *
23799 * @element input
23800 * @param {expression} ngChange {@link guide/expression Expression} to evaluate upon change
23801 * in input value.
23802 *
23803 * @example
23804 * <example name="ngChange-directive" module="changeExample">
23805 *   <file name="index.html">
23806 *     <script>
23807 *       angular.module('changeExample', [])
23808 *         .controller('ExampleController', ['$scope', function($scope) {
23809 *           $scope.counter = 0;
23810 *           $scope.change = function() {
23811 *             $scope.counter++;
23812 *           };
23813 *         }]);
23814 *     </script>
23815 *     <div ng-controller="ExampleController">
23816 *       <input type="checkbox" ng-model="confirmed" ng-change="change()" id="ng-change-example1" />
23817 *       <input type="checkbox" ng-model="confirmed" id="ng-change-example2" />
23818 *       <label for="ng-change-example2">Confirmed</label><br />
23819 *       <tt>debug = {{confirmed}}</tt><br/>
23820 *       <tt>counter = {{counter}}</tt><br/>
23821 *     </div>
23822 *   </file>
23823 *   <file name="protractor.js" type="protractor">
23824 *     var counter = element(by.binding('counter'));
23825 *     var debug = element(by.binding('confirmed'));
23826 *
23827 *     it('should evaluate the expression if changing from view', function() {
23828 *       expect(counter.getText()).toContain('0');
23829 *
23830 *       element(by.id('ng-change-example1')).click();
23831 *
23832 *       expect(counter.getText()).toContain('1');
23833 *       expect(debug.getText()).toContain('true');
23834 *     });
23835 *
23836 *     it('should not evaluate the expression if changing from model', function() {
23837 *       element(by.id('ng-change-example2')).click();
23838
23839 *       expect(counter.getText()).toContain('0');
23840 *       expect(debug.getText()).toContain('true');
23841 *     });
23842 *   </file>
23843 * </example>
23844 */
23845var ngChangeDirective = valueFn({
23846  restrict: 'A',
23847  require: 'ngModel',
23848  link: function(scope, element, attr, ctrl) {
23849    ctrl.$viewChangeListeners.push(function() {
23850      scope.$eval(attr.ngChange);
23851    });
23852  }
23853});
23854
23855function classDirective(name, selector) {
23856  name = 'ngClass' + name;
23857  return ['$animate', function($animate) {
23858    return {
23859      restrict: 'AC',
23860      link: function(scope, element, attr) {
23861        var oldVal;
23862
23863        scope.$watch(attr[name], ngClassWatchAction, true);
23864
23865        attr.$observe('class', function(value) {
23866          ngClassWatchAction(scope.$eval(attr[name]));
23867        });
23868
23869
23870        if (name !== 'ngClass') {
23871          scope.$watch('$index', function($index, old$index) {
23872            // jshint bitwise: false
23873            var mod = $index & 1;
23874            if (mod !== (old$index & 1)) {
23875              var classes = arrayClasses(scope.$eval(attr[name]));
23876              mod === selector ?
23877                addClasses(classes) :
23878                removeClasses(classes);
23879            }
23880          });
23881        }
23882
23883        function addClasses(classes) {
23884          var newClasses = digestClassCounts(classes, 1);
23885          attr.$addClass(newClasses);
23886        }
23887
23888        function removeClasses(classes) {
23889          var newClasses = digestClassCounts(classes, -1);
23890          attr.$removeClass(newClasses);
23891        }
23892
23893        function digestClassCounts(classes, count) {
23894          // Use createMap() to prevent class assumptions involving property
23895          // names in Object.prototype
23896          var classCounts = element.data('$classCounts') || createMap();
23897          var classesToUpdate = [];
23898          forEach(classes, function(className) {
23899            if (count > 0 || classCounts[className]) {
23900              classCounts[className] = (classCounts[className] || 0) + count;
23901              if (classCounts[className] === +(count > 0)) {
23902                classesToUpdate.push(className);
23903              }
23904            }
23905          });
23906          element.data('$classCounts', classCounts);
23907          return classesToUpdate.join(' ');
23908        }
23909
23910        function updateClasses(oldClasses, newClasses) {
23911          var toAdd = arrayDifference(newClasses, oldClasses);
23912          var toRemove = arrayDifference(oldClasses, newClasses);
23913          toAdd = digestClassCounts(toAdd, 1);
23914          toRemove = digestClassCounts(toRemove, -1);
23915          if (toAdd && toAdd.length) {
23916            $animate.addClass(element, toAdd);
23917          }
23918          if (toRemove && toRemove.length) {
23919            $animate.removeClass(element, toRemove);
23920          }
23921        }
23922
23923        function ngClassWatchAction(newVal) {
23924          if (selector === true || scope.$index % 2 === selector) {
23925            var newClasses = arrayClasses(newVal || []);
23926            if (!oldVal) {
23927              addClasses(newClasses);
23928            } else if (!equals(newVal,oldVal)) {
23929              var oldClasses = arrayClasses(oldVal);
23930              updateClasses(oldClasses, newClasses);
23931            }
23932          }
23933          oldVal = shallowCopy(newVal);
23934        }
23935      }
23936    };
23937
23938    function arrayDifference(tokens1, tokens2) {
23939      var values = [];
23940
23941      outer:
23942      for (var i = 0; i < tokens1.length; i++) {
23943        var token = tokens1[i];
23944        for (var j = 0; j < tokens2.length; j++) {
23945          if (token == tokens2[j]) continue outer;
23946        }
23947        values.push(token);
23948      }
23949      return values;
23950    }
23951
23952    function arrayClasses(classVal) {
23953      var classes = [];
23954      if (isArray(classVal)) {
23955        forEach(classVal, function(v) {
23956          classes = classes.concat(arrayClasses(v));
23957        });
23958        return classes;
23959      } else if (isString(classVal)) {
23960        return classVal.split(' ');
23961      } else if (isObject(classVal)) {
23962        forEach(classVal, function(v, k) {
23963          if (v) {
23964            classes = classes.concat(k.split(' '));
23965          }
23966        });
23967        return classes;
23968      }
23969      return classVal;
23970    }
23971  }];
23972}
23973
23974/**
23975 * @ngdoc directive
23976 * @name ngClass
23977 * @restrict AC
23978 *
23979 * @description
23980 * The `ngClass` directive allows you to dynamically set CSS classes on an HTML element by databinding
23981 * an expression that represents all classes to be added.
23982 *
23983 * The directive operates in three different ways, depending on which of three types the expression
23984 * evaluates to:
23985 *
23986 * 1. If the expression evaluates to a string, the string should be one or more space-delimited class
23987 * names.
23988 *
23989 * 2. If the expression evaluates to an object, then for each key-value pair of the
23990 * object with a truthy value the corresponding key is used as a class name.
23991 *
23992 * 3. If the expression evaluates to an array, each element of the array should either be a string as in
23993 * type 1 or an object as in type 2. This means that you can mix strings and objects together in an array
23994 * to give you more control over what CSS classes appear. See the code below for an example of this.
23995 *
23996 *
23997 * The directive won't add duplicate classes if a particular class was already set.
23998 *
23999 * When the expression changes, the previously added classes are removed and only then are the
24000 * new classes added.
24001 *
24002 * @animations
24003 * | Animation                        | Occurs                              |
24004 * |----------------------------------|-------------------------------------|
24005 * | {@link ng.$animate#addClass addClass}       | just before the class is applied to the element   |
24006 * | {@link ng.$animate#removeClass removeClass} | just before the class is removed from the element |
24007 *
24008 * @element ANY
24009 * @param {expression} ngClass {@link guide/expression Expression} to eval. The result
24010 *   of the evaluation can be a string representing space delimited class
24011 *   names, an array, or a map of class names to boolean values. In the case of a map, the
24012 *   names of the properties whose values are truthy will be added as css classes to the
24013 *   element.
24014 *
24015 * @example Example that demonstrates basic bindings via ngClass directive.
24016   <example>
24017     <file name="index.html">
24018       <p ng-class="{strike: deleted, bold: important, 'has-error': error}">Map Syntax Example</p>
24019       <label>
24020          <input type="checkbox" ng-model="deleted">
24021          deleted (apply "strike" class)
24022       </label><br>
24023       <label>
24024          <input type="checkbox" ng-model="important">
24025          important (apply "bold" class)
24026       </label><br>
24027       <label>
24028          <input type="checkbox" ng-model="error">
24029          error (apply "has-error" class)
24030       </label>
24031       <hr>
24032       <p ng-class="style">Using String Syntax</p>
24033       <input type="text" ng-model="style"
24034              placeholder="Type: bold strike red" aria-label="Type: bold strike red">
24035       <hr>
24036       <p ng-class="[style1, style2, style3]">Using Array Syntax</p>
24037       <input ng-model="style1"
24038              placeholder="Type: bold, strike or red" aria-label="Type: bold, strike or red"><br>
24039       <input ng-model="style2"
24040              placeholder="Type: bold, strike or red" aria-label="Type: bold, strike or red 2"><br>
24041       <input ng-model="style3"
24042              placeholder="Type: bold, strike or red" aria-label="Type: bold, strike or red 3"><br>
24043       <hr>
24044       <p ng-class="[style4, {orange: warning}]">Using Array and Map Syntax</p>
24045       <input ng-model="style4" placeholder="Type: bold, strike" aria-label="Type: bold, strike"><br>
24046       <label><input type="checkbox" ng-model="warning"> warning (apply "orange" class)</label>
24047     </file>
24048     <file name="style.css">
24049       .strike {
24050           text-decoration: line-through;
24051       }
24052       .bold {
24053           font-weight: bold;
24054       }
24055       .red {
24056           color: red;
24057       }
24058       .has-error {
24059           color: red;
24060           background-color: yellow;
24061       }
24062       .orange {
24063           color: orange;
24064       }
24065     </file>
24066     <file name="protractor.js" type="protractor">
24067       var ps = element.all(by.css('p'));
24068
24069       it('should let you toggle the class', function() {
24070
24071         expect(ps.first().getAttribute('class')).not.toMatch(/bold/);
24072         expect(ps.first().getAttribute('class')).not.toMatch(/has-error/);
24073
24074         element(by.model('important')).click();
24075         expect(ps.first().getAttribute('class')).toMatch(/bold/);
24076
24077         element(by.model('error')).click();
24078         expect(ps.first().getAttribute('class')).toMatch(/has-error/);
24079       });
24080
24081       it('should let you toggle string example', function() {
24082         expect(ps.get(1).getAttribute('class')).toBe('');
24083         element(by.model('style')).clear();
24084         element(by.model('style')).sendKeys('red');
24085         expect(ps.get(1).getAttribute('class')).toBe('red');
24086       });
24087
24088       it('array example should have 3 classes', function() {
24089         expect(ps.get(2).getAttribute('class')).toBe('');
24090         element(by.model('style1')).sendKeys('bold');
24091         element(by.model('style2')).sendKeys('strike');
24092         element(by.model('style3')).sendKeys('red');
24093         expect(ps.get(2).getAttribute('class')).toBe('bold strike red');
24094       });
24095
24096       it('array with map example should have 2 classes', function() {
24097         expect(ps.last().getAttribute('class')).toBe('');
24098         element(by.model('style4')).sendKeys('bold');
24099         element(by.model('warning')).click();
24100         expect(ps.last().getAttribute('class')).toBe('bold orange');
24101       });
24102     </file>
24103   </example>
24104
24105   ## Animations
24106
24107   The example below demonstrates how to perform animations using ngClass.
24108
24109   <example module="ngAnimate" deps="angular-animate.js" animations="true">
24110     <file name="index.html">
24111      <input id="setbtn" type="button" value="set" ng-click="myVar='my-class'">
24112      <input id="clearbtn" type="button" value="clear" ng-click="myVar=''">
24113      <br>
24114      <span class="base-class" ng-class="myVar">Sample Text</span>
24115     </file>
24116     <file name="style.css">
24117       .base-class {
24118         transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;
24119       }
24120
24121       .base-class.my-class {
24122         color: red;
24123         font-size:3em;
24124       }
24125     </file>
24126     <file name="protractor.js" type="protractor">
24127       it('should check ng-class', function() {
24128         expect(element(by.css('.base-class')).getAttribute('class')).not.
24129           toMatch(/my-class/);
24130
24131         element(by.id('setbtn')).click();
24132
24133         expect(element(by.css('.base-class')).getAttribute('class')).
24134           toMatch(/my-class/);
24135
24136         element(by.id('clearbtn')).click();
24137
24138         expect(element(by.css('.base-class')).getAttribute('class')).not.
24139           toMatch(/my-class/);
24140       });
24141     </file>
24142   </example>
24143
24144
24145   ## ngClass and pre-existing CSS3 Transitions/Animations
24146   The ngClass directive still supports CSS3 Transitions/Animations even if they do not follow the ngAnimate CSS naming structure.
24147   Upon animation ngAnimate will apply supplementary CSS classes to track the start and end of an animation, but this will not hinder
24148   any pre-existing CSS transitions already on the element. To get an idea of what happens during a class-based animation, be sure
24149   to view the step by step details of {@link $animate#addClass $animate.addClass} and
24150   {@link $animate#removeClass $animate.removeClass}.
24151 */
24152var ngClassDirective = classDirective('', true);
24153
24154/**
24155 * @ngdoc directive
24156 * @name ngClassOdd
24157 * @restrict AC
24158 *
24159 * @description
24160 * The `ngClassOdd` and `ngClassEven` directives work exactly as
24161 * {@link ng.directive:ngClass ngClass}, except they work in
24162 * conjunction with `ngRepeat` and take effect only on odd (even) rows.
24163 *
24164 * This directive can be applied only within the scope of an
24165 * {@link ng.directive:ngRepeat ngRepeat}.
24166 *
24167 * @element ANY
24168 * @param {expression} ngClassOdd {@link guide/expression Expression} to eval. The result
24169 *   of the evaluation can be a string representing space delimited class names or an array.
24170 *
24171 * @example
24172   <example>
24173     <file name="index.html">
24174        <ol ng-init="names=['John', 'Mary', 'Cate', 'Suz']">
24175          <li ng-repeat="name in names">
24176           <span ng-class-odd="'odd'" ng-class-even="'even'">
24177             {{name}}
24178           </span>
24179          </li>
24180        </ol>
24181     </file>
24182     <file name="style.css">
24183       .odd {
24184         color: red;
24185       }
24186       .even {
24187         color: blue;
24188       }
24189     </file>
24190     <file name="protractor.js" type="protractor">
24191       it('should check ng-class-odd and ng-class-even', function() {
24192         expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).
24193           toMatch(/odd/);
24194         expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).
24195           toMatch(/even/);
24196       });
24197     </file>
24198   </example>
24199 */
24200var ngClassOddDirective = classDirective('Odd', 0);
24201
24202/**
24203 * @ngdoc directive
24204 * @name ngClassEven
24205 * @restrict AC
24206 *
24207 * @description
24208 * The `ngClassOdd` and `ngClassEven` directives work exactly as
24209 * {@link ng.directive:ngClass ngClass}, except they work in
24210 * conjunction with `ngRepeat` and take effect only on odd (even) rows.
24211 *
24212 * This directive can be applied only within the scope of an
24213 * {@link ng.directive:ngRepeat ngRepeat}.
24214 *
24215 * @element ANY
24216 * @param {expression} ngClassEven {@link guide/expression Expression} to eval. The
24217 *   result of the evaluation can be a string representing space delimited class names or an array.
24218 *
24219 * @example
24220   <example>
24221     <file name="index.html">
24222        <ol ng-init="names=['John', 'Mary', 'Cate', 'Suz']">
24223          <li ng-repeat="name in names">
24224           <span ng-class-odd="'odd'" ng-class-even="'even'">
24225             {{name}} &nbsp; &nbsp; &nbsp;
24226           </span>
24227          </li>
24228        </ol>
24229     </file>
24230     <file name="style.css">
24231       .odd {
24232         color: red;
24233       }
24234       .even {
24235         color: blue;
24236       }
24237     </file>
24238     <file name="protractor.js" type="protractor">
24239       it('should check ng-class-odd and ng-class-even', function() {
24240         expect(element(by.repeater('name in names').row(0).column('name')).getAttribute('class')).
24241           toMatch(/odd/);
24242         expect(element(by.repeater('name in names').row(1).column('name')).getAttribute('class')).
24243           toMatch(/even/);
24244       });
24245     </file>
24246   </example>
24247 */
24248var ngClassEvenDirective = classDirective('Even', 1);
24249
24250/**
24251 * @ngdoc directive
24252 * @name ngCloak
24253 * @restrict AC
24254 *
24255 * @description
24256 * The `ngCloak` directive is used to prevent the Angular html template from being briefly
24257 * displayed by the browser in its raw (uncompiled) form while your application is loading. Use this
24258 * directive to avoid the undesirable flicker effect caused by the html template display.
24259 *
24260 * The directive can be applied to the `<body>` element, but the preferred usage is to apply
24261 * multiple `ngCloak` directives to small portions of the page to permit progressive rendering
24262 * of the browser view.
24263 *
24264 * `ngCloak` works in cooperation with the following css rule embedded within `angular.js` and
24265 * `angular.min.js`.
24266 * For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).
24267 *
24268 * ```css
24269 * [ng\:cloak], [ng-cloak], [data-ng-cloak], [x-ng-cloak], .ng-cloak, .x-ng-cloak {
24270 *   display: none !important;
24271 * }
24272 * ```
24273 *
24274 * When this css rule is loaded by the browser, all html elements (including their children) that
24275 * are tagged with the `ngCloak` directive are hidden. When Angular encounters this directive
24276 * during the compilation of the template it deletes the `ngCloak` element attribute, making
24277 * the compiled element visible.
24278 *
24279 * For the best result, the `angular.js` script must be loaded in the head section of the html
24280 * document; alternatively, the css rule above must be included in the external stylesheet of the
24281 * application.
24282 *
24283 * @element ANY
24284 *
24285 * @example
24286   <example>
24287     <file name="index.html">
24288        <div id="template1" ng-cloak>{{ 'hello' }}</div>
24289        <div id="template2" class="ng-cloak">{{ 'world' }}</div>
24290     </file>
24291     <file name="protractor.js" type="protractor">
24292       it('should remove the template directive and css class', function() {
24293         expect($('#template1').getAttribute('ng-cloak')).
24294           toBeNull();
24295         expect($('#template2').getAttribute('ng-cloak')).
24296           toBeNull();
24297       });
24298     </file>
24299   </example>
24300 *
24301 */
24302var ngCloakDirective = ngDirective({
24303  compile: function(element, attr) {
24304    attr.$set('ngCloak', undefined);
24305    element.removeClass('ng-cloak');
24306  }
24307});
24308
24309/**
24310 * @ngdoc directive
24311 * @name ngController
24312 *
24313 * @description
24314 * The `ngController` directive attaches a controller class to the view. This is a key aspect of how angular
24315 * supports the principles behind the Model-View-Controller design pattern.
24316 *
24317 * MVC components in angular:
24318 *
24319 * * Model — Models are the properties of a scope; scopes are attached to the DOM where scope properties
24320 *   are accessed through bindings.
24321 * * View — The template (HTML with data bindings) that is rendered into the View.
24322 * * Controller — The `ngController` directive specifies a Controller class; the class contains business
24323 *   logic behind the application to decorate the scope with functions and values
24324 *
24325 * Note that you can also attach controllers to the DOM by declaring it in a route definition
24326 * via the {@link ngRoute.$route $route} service. A common mistake is to declare the controller
24327 * again using `ng-controller` in the template itself.  This will cause the controller to be attached
24328 * and executed twice.
24329 *
24330 * @element ANY
24331 * @scope
24332 * @priority 500
24333 * @param {expression} ngController Name of a constructor function registered with the current
24334 * {@link ng.$controllerProvider $controllerProvider} or an {@link guide/expression expression}
24335 * that on the current scope evaluates to a constructor function.
24336 *
24337 * The controller instance can be published into a scope property by specifying
24338 * `ng-controller="as propertyName"`.
24339 *
24340 * If the current `$controllerProvider` is configured to use globals (via
24341 * {@link ng.$controllerProvider#allowGlobals `$controllerProvider.allowGlobals()` }), this may
24342 * also be the name of a globally accessible constructor function (not recommended).
24343 *
24344 * @example
24345 * Here is a simple form for editing user contact information. Adding, removing, clearing, and
24346 * greeting are methods declared on the controller (see source tab). These methods can
24347 * easily be called from the angular markup. Any changes to the data are automatically reflected
24348 * in the View without the need for a manual update.
24349 *
24350 * Two different declaration styles are included below:
24351 *
24352 * * one binds methods and properties directly onto the controller using `this`:
24353 * `ng-controller="SettingsController1 as settings"`
24354 * * one injects `$scope` into the controller:
24355 * `ng-controller="SettingsController2"`
24356 *
24357 * The second option is more common in the Angular community, and is generally used in boilerplates
24358 * and in this guide. However, there are advantages to binding properties directly to the controller
24359 * and avoiding scope.
24360 *
24361 * * Using `controller as` makes it obvious which controller you are accessing in the template when
24362 * multiple controllers apply to an element.
24363 * * If you are writing your controllers as classes you have easier access to the properties and
24364 * methods, which will appear on the scope, from inside the controller code.
24365 * * Since there is always a `.` in the bindings, you don't have to worry about prototypal
24366 * inheritance masking primitives.
24367 *
24368 * This example demonstrates the `controller as` syntax.
24369 *
24370 * <example name="ngControllerAs" module="controllerAsExample">
24371 *   <file name="index.html">
24372 *    <div id="ctrl-as-exmpl" ng-controller="SettingsController1 as settings">
24373 *      <label>Name: <input type="text" ng-model="settings.name"/></label>
24374 *      <button ng-click="settings.greet()">greet</button><br/>
24375 *      Contact:
24376 *      <ul>
24377 *        <li ng-repeat="contact in settings.contacts">
24378 *          <select ng-model="contact.type" aria-label="Contact method" id="select_{{$index}}">
24379 *             <option>phone</option>
24380 *             <option>email</option>
24381 *          </select>
24382 *          <input type="text" ng-model="contact.value" aria-labelledby="select_{{$index}}" />
24383 *          <button ng-click="settings.clearContact(contact)">clear</button>
24384 *          <button ng-click="settings.removeContact(contact)" aria-label="Remove">X</button>
24385 *        </li>
24386 *        <li><button ng-click="settings.addContact()">add</button></li>
24387 *     </ul>
24388 *    </div>
24389 *   </file>
24390 *   <file name="app.js">
24391 *    angular.module('controllerAsExample', [])
24392 *      .controller('SettingsController1', SettingsController1);
24393 *
24394 *    function SettingsController1() {
24395 *      this.name = "John Smith";
24396 *      this.contacts = [
24397 *        {type: 'phone', value: '408 555 1212'},
24398 *        {type: 'email', value: 'john.smith@example.org'} ];
24399 *    }
24400 *
24401 *    SettingsController1.prototype.greet = function() {
24402 *      alert(this.name);
24403 *    };
24404 *
24405 *    SettingsController1.prototype.addContact = function() {
24406 *      this.contacts.push({type: 'email', value: 'yourname@example.org'});
24407 *    };
24408 *
24409 *    SettingsController1.prototype.removeContact = function(contactToRemove) {
24410 *     var index = this.contacts.indexOf(contactToRemove);
24411 *      this.contacts.splice(index, 1);
24412 *    };
24413 *
24414 *    SettingsController1.prototype.clearContact = function(contact) {
24415 *      contact.type = 'phone';
24416 *      contact.value = '';
24417 *    };
24418 *   </file>
24419 *   <file name="protractor.js" type="protractor">
24420 *     it('should check controller as', function() {
24421 *       var container = element(by.id('ctrl-as-exmpl'));
24422 *         expect(container.element(by.model('settings.name'))
24423 *           .getAttribute('value')).toBe('John Smith');
24424 *
24425 *       var firstRepeat =
24426 *           container.element(by.repeater('contact in settings.contacts').row(0));
24427 *       var secondRepeat =
24428 *           container.element(by.repeater('contact in settings.contacts').row(1));
24429 *
24430 *       expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))
24431 *           .toBe('408 555 1212');
24432 *
24433 *       expect(secondRepeat.element(by.model('contact.value')).getAttribute('value'))
24434 *           .toBe('john.smith@example.org');
24435 *
24436 *       firstRepeat.element(by.buttonText('clear')).click();
24437 *
24438 *       expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))
24439 *           .toBe('');
24440 *
24441 *       container.element(by.buttonText('add')).click();
24442 *
24443 *       expect(container.element(by.repeater('contact in settings.contacts').row(2))
24444 *           .element(by.model('contact.value'))
24445 *           .getAttribute('value'))
24446 *           .toBe('yourname@example.org');
24447 *     });
24448 *   </file>
24449 * </example>
24450 *
24451 * This example demonstrates the "attach to `$scope`" style of controller.
24452 *
24453 * <example name="ngController" module="controllerExample">
24454 *  <file name="index.html">
24455 *   <div id="ctrl-exmpl" ng-controller="SettingsController2">
24456 *     <label>Name: <input type="text" ng-model="name"/></label>
24457 *     <button ng-click="greet()">greet</button><br/>
24458 *     Contact:
24459 *     <ul>
24460 *       <li ng-repeat="contact in contacts">
24461 *         <select ng-model="contact.type" id="select_{{$index}}">
24462 *            <option>phone</option>
24463 *            <option>email</option>
24464 *         </select>
24465 *         <input type="text" ng-model="contact.value" aria-labelledby="select_{{$index}}" />
24466 *         <button ng-click="clearContact(contact)">clear</button>
24467 *         <button ng-click="removeContact(contact)">X</button>
24468 *       </li>
24469 *       <li>[ <button ng-click="addContact()">add</button> ]</li>
24470 *    </ul>
24471 *   </div>
24472 *  </file>
24473 *  <file name="app.js">
24474 *   angular.module('controllerExample', [])
24475 *     .controller('SettingsController2', ['$scope', SettingsController2]);
24476 *
24477 *   function SettingsController2($scope) {
24478 *     $scope.name = "John Smith";
24479 *     $scope.contacts = [
24480 *       {type:'phone', value:'408 555 1212'},
24481 *       {type:'email', value:'john.smith@example.org'} ];
24482 *
24483 *     $scope.greet = function() {
24484 *       alert($scope.name);
24485 *     };
24486 *
24487 *     $scope.addContact = function() {
24488 *       $scope.contacts.push({type:'email', value:'yourname@example.org'});
24489 *     };
24490 *
24491 *     $scope.removeContact = function(contactToRemove) {
24492 *       var index = $scope.contacts.indexOf(contactToRemove);
24493 *       $scope.contacts.splice(index, 1);
24494 *     };
24495 *
24496 *     $scope.clearContact = function(contact) {
24497 *       contact.type = 'phone';
24498 *       contact.value = '';
24499 *     };
24500 *   }
24501 *  </file>
24502 *  <file name="protractor.js" type="protractor">
24503 *    it('should check controller', function() {
24504 *      var container = element(by.id('ctrl-exmpl'));
24505 *
24506 *      expect(container.element(by.model('name'))
24507 *          .getAttribute('value')).toBe('John Smith');
24508 *
24509 *      var firstRepeat =
24510 *          container.element(by.repeater('contact in contacts').row(0));
24511 *      var secondRepeat =
24512 *          container.element(by.repeater('contact in contacts').row(1));
24513 *
24514 *      expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))
24515 *          .toBe('408 555 1212');
24516 *      expect(secondRepeat.element(by.model('contact.value')).getAttribute('value'))
24517 *          .toBe('john.smith@example.org');
24518 *
24519 *      firstRepeat.element(by.buttonText('clear')).click();
24520 *
24521 *      expect(firstRepeat.element(by.model('contact.value')).getAttribute('value'))
24522 *          .toBe('');
24523 *
24524 *      container.element(by.buttonText('add')).click();
24525 *
24526 *      expect(container.element(by.repeater('contact in contacts').row(2))
24527 *          .element(by.model('contact.value'))
24528 *          .getAttribute('value'))
24529 *          .toBe('yourname@example.org');
24530 *    });
24531 *  </file>
24532 *</example>
24533
24534 */
24535var ngControllerDirective = [function() {
24536  return {
24537    restrict: 'A',
24538    scope: true,
24539    controller: '@',
24540    priority: 500
24541  };
24542}];
24543
24544/**
24545 * @ngdoc directive
24546 * @name ngCsp
24547 *
24548 * @element html
24549 * @description
24550 *
24551 * Angular has some features that can break certain
24552 * [CSP (Content Security Policy)](https://developer.mozilla.org/en/Security/CSP) rules.
24553 *
24554 * If you intend to implement these rules then you must tell Angular not to use these features.
24555 *
24556 * This is necessary when developing things like Google Chrome Extensions or Universal Windows Apps.
24557 *
24558 *
24559 * The following rules affect Angular:
24560 *
24561 * * `unsafe-eval`: this rule forbids apps to use `eval` or `Function(string)` generated functions
24562 * (among other things). Angular makes use of this in the {@link $parse} service to provide a 30%
24563 * increase in the speed of evaluating Angular expressions.
24564 *
24565 * * `unsafe-inline`: this rule forbids apps from inject custom styles into the document. Angular
24566 * makes use of this to include some CSS rules (e.g. {@link ngCloak} and {@link ngHide}).
24567 * To make these directives work when a CSP rule is blocking inline styles, you must link to the
24568 * `angular-csp.css` in your HTML manually.
24569 *
24570 * If you do not provide `ngCsp` then Angular tries to autodetect if CSP is blocking unsafe-eval
24571 * and automatically deactivates this feature in the {@link $parse} service. This autodetection,
24572 * however, triggers a CSP error to be logged in the console:
24573 *
24574 * ```
24575 * Refused to evaluate a string as JavaScript because 'unsafe-eval' is not an allowed source of
24576 * script in the following Content Security Policy directive: "default-src 'self'". Note that
24577 * 'script-src' was not explicitly set, so 'default-src' is used as a fallback.
24578 * ```
24579 *
24580 * This error is harmless but annoying. To prevent the error from showing up, put the `ngCsp`
24581 * directive on an element of the HTML document that appears before the `<script>` tag that loads
24582 * the `angular.js` file.
24583 *
24584 * *Note: This directive is only available in the `ng-csp` and `data-ng-csp` attribute form.*
24585 *
24586 * You can specify which of the CSP related Angular features should be deactivated by providing
24587 * a value for the `ng-csp` attribute. The options are as follows:
24588 *
24589 * * no-inline-style: this stops Angular from injecting CSS styles into the DOM
24590 *
24591 * * no-unsafe-eval: this stops Angular from optimizing $parse with unsafe eval of strings
24592 *
24593 * You can use these values in the following combinations:
24594 *
24595 *
24596 * * No declaration means that Angular will assume that you can do inline styles, but it will do
24597 * a runtime check for unsafe-eval. E.g. `<body>`. This is backwardly compatible with previous versions
24598 * of Angular.
24599 *
24600 * * A simple `ng-csp` (or `data-ng-csp`) attribute will tell Angular to deactivate both inline
24601 * styles and unsafe eval. E.g. `<body ng-csp>`. This is backwardly compatible with previous versions
24602 * of Angular.
24603 *
24604 * * Specifying only `no-unsafe-eval` tells Angular that we must not use eval, but that we can inject
24605 * inline styles. E.g. `<body ng-csp="no-unsafe-eval">`.
24606 *
24607 * * Specifying only `no-inline-style` tells Angular that we must not inject styles, but that we can
24608 * run eval - no automatic check for unsafe eval will occur. E.g. `<body ng-csp="no-inline-style">`
24609 *
24610 * * Specifying both `no-unsafe-eval` and `no-inline-style` tells Angular that we must not inject
24611 * styles nor use eval, which is the same as an empty: ng-csp.
24612 * E.g.`<body ng-csp="no-inline-style;no-unsafe-eval">`
24613 *
24614 * @example
24615 * This example shows how to apply the `ngCsp` directive to the `html` tag.
24616   ```html
24617     <!doctype html>
24618     <html ng-app ng-csp>
24619     ...
24620     ...
24621     </html>
24622   ```
24623  * @example
24624      // Note: the suffix `.csp` in the example name triggers
24625      // csp mode in our http server!
24626      <example name="example.csp" module="cspExample" ng-csp="true">
24627        <file name="index.html">
24628          <div ng-controller="MainController as ctrl">
24629            <div>
24630              <button ng-click="ctrl.inc()" id="inc">Increment</button>
24631              <span id="counter">
24632                {{ctrl.counter}}
24633              </span>
24634            </div>
24635
24636            <div>
24637              <button ng-click="ctrl.evil()" id="evil">Evil</button>
24638              <span id="evilError">
24639                {{ctrl.evilError}}
24640              </span>
24641            </div>
24642          </div>
24643        </file>
24644        <file name="script.js">
24645           angular.module('cspExample', [])
24646             .controller('MainController', function() {
24647                this.counter = 0;
24648                this.inc = function() {
24649                  this.counter++;
24650                };
24651                this.evil = function() {
24652                  // jshint evil:true
24653                  try {
24654                    eval('1+2');
24655                  } catch (e) {
24656                    this.evilError = e.message;
24657                  }
24658                };
24659              });
24660        </file>
24661        <file name="protractor.js" type="protractor">
24662          var util, webdriver;
24663
24664          var incBtn = element(by.id('inc'));
24665          var counter = element(by.id('counter'));
24666          var evilBtn = element(by.id('evil'));
24667          var evilError = element(by.id('evilError'));
24668
24669          function getAndClearSevereErrors() {
24670            return browser.manage().logs().get('browser').then(function(browserLog) {
24671              return browserLog.filter(function(logEntry) {
24672                return logEntry.level.value > webdriver.logging.Level.WARNING.value;
24673              });
24674            });
24675          }
24676
24677          function clearErrors() {
24678            getAndClearSevereErrors();
24679          }
24680
24681          function expectNoErrors() {
24682            getAndClearSevereErrors().then(function(filteredLog) {
24683              expect(filteredLog.length).toEqual(0);
24684              if (filteredLog.length) {
24685                console.log('browser console errors: ' + util.inspect(filteredLog));
24686              }
24687            });
24688          }
24689
24690          function expectError(regex) {
24691            getAndClearSevereErrors().then(function(filteredLog) {
24692              var found = false;
24693              filteredLog.forEach(function(log) {
24694                if (log.message.match(regex)) {
24695                  found = true;
24696                }
24697              });
24698              if (!found) {
24699                throw new Error('expected an error that matches ' + regex);
24700              }
24701            });
24702          }
24703
24704          beforeEach(function() {
24705            util = require('util');
24706            webdriver = require('protractor/node_modules/selenium-webdriver');
24707          });
24708
24709          // For now, we only test on Chrome,
24710          // as Safari does not load the page with Protractor's injected scripts,
24711          // and Firefox webdriver always disables content security policy (#6358)
24712          if (browser.params.browser !== 'chrome') {
24713            return;
24714          }
24715
24716          it('should not report errors when the page is loaded', function() {
24717            // clear errors so we are not dependent on previous tests
24718            clearErrors();
24719            // Need to reload the page as the page is already loaded when
24720            // we come here
24721            browser.driver.getCurrentUrl().then(function(url) {
24722              browser.get(url);
24723            });
24724            expectNoErrors();
24725          });
24726
24727          it('should evaluate expressions', function() {
24728            expect(counter.getText()).toEqual('0');
24729            incBtn.click();
24730            expect(counter.getText()).toEqual('1');
24731            expectNoErrors();
24732          });
24733
24734          it('should throw and report an error when using "eval"', function() {
24735            evilBtn.click();
24736            expect(evilError.getText()).toMatch(/Content Security Policy/);
24737            expectError(/Content Security Policy/);
24738          });
24739        </file>
24740      </example>
24741  */
24742
24743// ngCsp is not implemented as a proper directive any more, because we need it be processed while we
24744// bootstrap the system (before $parse is instantiated), for this reason we just have
24745// the csp() fn that looks for the `ng-csp` attribute anywhere in the current doc
24746
24747/**
24748 * @ngdoc directive
24749 * @name ngClick
24750 *
24751 * @description
24752 * The ngClick directive allows you to specify custom behavior when
24753 * an element is clicked.
24754 *
24755 * @element ANY
24756 * @priority 0
24757 * @param {expression} ngClick {@link guide/expression Expression} to evaluate upon
24758 * click. ({@link guide/expression#-event- Event object is available as `$event`})
24759 *
24760 * @example
24761   <example>
24762     <file name="index.html">
24763      <button ng-click="count = count + 1" ng-init="count=0">
24764        Increment
24765      </button>
24766      <span>
24767        count: {{count}}
24768      </span>
24769     </file>
24770     <file name="protractor.js" type="protractor">
24771       it('should check ng-click', function() {
24772         expect(element(by.binding('count')).getText()).toMatch('0');
24773         element(by.css('button')).click();
24774         expect(element(by.binding('count')).getText()).toMatch('1');
24775       });
24776     </file>
24777   </example>
24778 */
24779/*
24780 * A collection of directives that allows creation of custom event handlers that are defined as
24781 * angular expressions and are compiled and executed within the current scope.
24782 */
24783var ngEventDirectives = {};
24784
24785// For events that might fire synchronously during DOM manipulation
24786// we need to execute their event handlers asynchronously using $evalAsync,
24787// so that they are not executed in an inconsistent state.
24788var forceAsyncEvents = {
24789  'blur': true,
24790  'focus': true
24791};
24792forEach(
24793  'click dblclick mousedown mouseup mouseover mouseout mousemove mouseenter mouseleave keydown keyup keypress submit focus blur copy cut paste'.split(' '),
24794  function(eventName) {
24795    var directiveName = directiveNormalize('ng-' + eventName);
24796    ngEventDirectives[directiveName] = ['$parse', '$rootScope', function($parse, $rootScope) {
24797      return {
24798        restrict: 'A',
24799        compile: function($element, attr) {
24800          // We expose the powerful $event object on the scope that provides access to the Window,
24801          // etc. that isn't protected by the fast paths in $parse.  We explicitly request better
24802          // checks at the cost of speed since event handler expressions are not executed as
24803          // frequently as regular change detection.
24804          var fn = $parse(attr[directiveName], /* interceptorFn */ null, /* expensiveChecks */ true);
24805          return function ngEventHandler(scope, element) {
24806            element.on(eventName, function(event) {
24807              var callback = function() {
24808                fn(scope, {$event:event});
24809              };
24810              if (forceAsyncEvents[eventName] && $rootScope.$$phase) {
24811                scope.$evalAsync(callback);
24812              } else {
24813                scope.$apply(callback);
24814              }
24815            });
24816          };
24817        }
24818      };
24819    }];
24820  }
24821);
24822
24823/**
24824 * @ngdoc directive
24825 * @name ngDblclick
24826 *
24827 * @description
24828 * The `ngDblclick` directive allows you to specify custom behavior on a dblclick event.
24829 *
24830 * @element ANY
24831 * @priority 0
24832 * @param {expression} ngDblclick {@link guide/expression Expression} to evaluate upon
24833 * a dblclick. (The Event object is available as `$event`)
24834 *
24835 * @example
24836   <example>
24837     <file name="index.html">
24838      <button ng-dblclick="count = count + 1" ng-init="count=0">
24839        Increment (on double click)
24840      </button>
24841      count: {{count}}
24842     </file>
24843   </example>
24844 */
24845
24846
24847/**
24848 * @ngdoc directive
24849 * @name ngMousedown
24850 *
24851 * @description
24852 * The ngMousedown directive allows you to specify custom behavior on mousedown event.
24853 *
24854 * @element ANY
24855 * @priority 0
24856 * @param {expression} ngMousedown {@link guide/expression Expression} to evaluate upon
24857 * mousedown. ({@link guide/expression#-event- Event object is available as `$event`})
24858 *
24859 * @example
24860   <example>
24861     <file name="index.html">
24862      <button ng-mousedown="count = count + 1" ng-init="count=0">
24863        Increment (on mouse down)
24864      </button>
24865      count: {{count}}
24866     </file>
24867   </example>
24868 */
24869
24870
24871/**
24872 * @ngdoc directive
24873 * @name ngMouseup
24874 *
24875 * @description
24876 * Specify custom behavior on mouseup event.
24877 *
24878 * @element ANY
24879 * @priority 0
24880 * @param {expression} ngMouseup {@link guide/expression Expression} to evaluate upon
24881 * mouseup. ({@link guide/expression#-event- Event object is available as `$event`})
24882 *
24883 * @example
24884   <example>
24885     <file name="index.html">
24886      <button ng-mouseup="count = count + 1" ng-init="count=0">
24887        Increment (on mouse up)
24888      </button>
24889      count: {{count}}
24890     </file>
24891   </example>
24892 */
24893
24894/**
24895 * @ngdoc directive
24896 * @name ngMouseover
24897 *
24898 * @description
24899 * Specify custom behavior on mouseover event.
24900 *
24901 * @element ANY
24902 * @priority 0
24903 * @param {expression} ngMouseover {@link guide/expression Expression} to evaluate upon
24904 * mouseover. ({@link guide/expression#-event- Event object is available as `$event`})
24905 *
24906 * @example
24907   <example>
24908     <file name="index.html">
24909      <button ng-mouseover="count = count + 1" ng-init="count=0">
24910        Increment (when mouse is over)
24911      </button>
24912      count: {{count}}
24913     </file>
24914   </example>
24915 */
24916
24917
24918/**
24919 * @ngdoc directive
24920 * @name ngMouseenter
24921 *
24922 * @description
24923 * Specify custom behavior on mouseenter event.
24924 *
24925 * @element ANY
24926 * @priority 0
24927 * @param {expression} ngMouseenter {@link guide/expression Expression} to evaluate upon
24928 * mouseenter. ({@link guide/expression#-event- Event object is available as `$event`})
24929 *
24930 * @example
24931   <example>
24932     <file name="index.html">
24933      <button ng-mouseenter="count = count + 1" ng-init="count=0">
24934        Increment (when mouse enters)
24935      </button>
24936      count: {{count}}
24937     </file>
24938   </example>
24939 */
24940
24941
24942/**
24943 * @ngdoc directive
24944 * @name ngMouseleave
24945 *
24946 * @description
24947 * Specify custom behavior on mouseleave event.
24948 *
24949 * @element ANY
24950 * @priority 0
24951 * @param {expression} ngMouseleave {@link guide/expression Expression} to evaluate upon
24952 * mouseleave. ({@link guide/expression#-event- Event object is available as `$event`})
24953 *
24954 * @example
24955   <example>
24956     <file name="index.html">
24957      <button ng-mouseleave="count = count + 1" ng-init="count=0">
24958        Increment (when mouse leaves)
24959      </button>
24960      count: {{count}}
24961     </file>
24962   </example>
24963 */
24964
24965
24966/**
24967 * @ngdoc directive
24968 * @name ngMousemove
24969 *
24970 * @description
24971 * Specify custom behavior on mousemove event.
24972 *
24973 * @element ANY
24974 * @priority 0
24975 * @param {expression} ngMousemove {@link guide/expression Expression} to evaluate upon
24976 * mousemove. ({@link guide/expression#-event- Event object is available as `$event`})
24977 *
24978 * @example
24979   <example>
24980     <file name="index.html">
24981      <button ng-mousemove="count = count + 1" ng-init="count=0">
24982        Increment (when mouse moves)
24983      </button>
24984      count: {{count}}
24985     </file>
24986   </example>
24987 */
24988
24989
24990/**
24991 * @ngdoc directive
24992 * @name ngKeydown
24993 *
24994 * @description
24995 * Specify custom behavior on keydown event.
24996 *
24997 * @element ANY
24998 * @priority 0
24999 * @param {expression} ngKeydown {@link guide/expression Expression} to evaluate upon
25000 * keydown. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)
25001 *
25002 * @example
25003   <example>
25004     <file name="index.html">
25005      <input ng-keydown="count = count + 1" ng-init="count=0">
25006      key down count: {{count}}
25007     </file>
25008   </example>
25009 */
25010
25011
25012/**
25013 * @ngdoc directive
25014 * @name ngKeyup
25015 *
25016 * @description
25017 * Specify custom behavior on keyup event.
25018 *
25019 * @element ANY
25020 * @priority 0
25021 * @param {expression} ngKeyup {@link guide/expression Expression} to evaluate upon
25022 * keyup. (Event object is available as `$event` and can be interrogated for keyCode, altKey, etc.)
25023 *
25024 * @example
25025   <example>
25026     <file name="index.html">
25027       <p>Typing in the input box below updates the key count</p>
25028       <input ng-keyup="count = count + 1" ng-init="count=0"> key up count: {{count}}
25029
25030       <p>Typing in the input box below updates the keycode</p>
25031       <input ng-keyup="event=$event">
25032       <p>event keyCode: {{ event.keyCode }}</p>
25033       <p>event altKey: {{ event.altKey }}</p>
25034     </file>
25035   </example>
25036 */
25037
25038
25039/**
25040 * @ngdoc directive
25041 * @name ngKeypress
25042 *
25043 * @description
25044 * Specify custom behavior on keypress event.
25045 *
25046 * @element ANY
25047 * @param {expression} ngKeypress {@link guide/expression Expression} to evaluate upon
25048 * keypress. ({@link guide/expression#-event- Event object is available as `$event`}
25049 * and can be interrogated for keyCode, altKey, etc.)
25050 *
25051 * @example
25052   <example>
25053     <file name="index.html">
25054      <input ng-keypress="count = count + 1" ng-init="count=0">
25055      key press count: {{count}}
25056     </file>
25057   </example>
25058 */
25059
25060
25061/**
25062 * @ngdoc directive
25063 * @name ngSubmit
25064 *
25065 * @description
25066 * Enables binding angular expressions to onsubmit events.
25067 *
25068 * Additionally it prevents the default action (which for form means sending the request to the
25069 * server and reloading the current page), but only if the form does not contain `action`,
25070 * `data-action`, or `x-action` attributes.
25071 *
25072 * <div class="alert alert-warning">
25073 * **Warning:** Be careful not to cause "double-submission" by using both the `ngClick` and
25074 * `ngSubmit` handlers together. See the
25075 * {@link form#submitting-a-form-and-preventing-the-default-action `form` directive documentation}
25076 * for a detailed discussion of when `ngSubmit` may be triggered.
25077 * </div>
25078 *
25079 * @element form
25080 * @priority 0
25081 * @param {expression} ngSubmit {@link guide/expression Expression} to eval.
25082 * ({@link guide/expression#-event- Event object is available as `$event`})
25083 *
25084 * @example
25085   <example module="submitExample">
25086     <file name="index.html">
25087      <script>
25088        angular.module('submitExample', [])
25089          .controller('ExampleController', ['$scope', function($scope) {
25090            $scope.list = [];
25091            $scope.text = 'hello';
25092            $scope.submit = function() {
25093              if ($scope.text) {
25094                $scope.list.push(this.text);
25095                $scope.text = '';
25096              }
25097            };
25098          }]);
25099      </script>
25100      <form ng-submit="submit()" ng-controller="ExampleController">
25101        Enter text and hit enter:
25102        <input type="text" ng-model="text" name="text" />
25103        <input type="submit" id="submit" value="Submit" />
25104        <pre>list={{list}}</pre>
25105      </form>
25106     </file>
25107     <file name="protractor.js" type="protractor">
25108       it('should check ng-submit', function() {
25109         expect(element(by.binding('list')).getText()).toBe('list=[]');
25110         element(by.css('#submit')).click();
25111         expect(element(by.binding('list')).getText()).toContain('hello');
25112         expect(element(by.model('text')).getAttribute('value')).toBe('');
25113       });
25114       it('should ignore empty strings', function() {
25115         expect(element(by.binding('list')).getText()).toBe('list=[]');
25116         element(by.css('#submit')).click();
25117         element(by.css('#submit')).click();
25118         expect(element(by.binding('list')).getText()).toContain('hello');
25119        });
25120     </file>
25121   </example>
25122 */
25123
25124/**
25125 * @ngdoc directive
25126 * @name ngFocus
25127 *
25128 * @description
25129 * Specify custom behavior on focus event.
25130 *
25131 * Note: As the `focus` event is executed synchronously when calling `input.focus()`
25132 * AngularJS executes the expression using `scope.$evalAsync` if the event is fired
25133 * during an `$apply` to ensure a consistent state.
25134 *
25135 * @element window, input, select, textarea, a
25136 * @priority 0
25137 * @param {expression} ngFocus {@link guide/expression Expression} to evaluate upon
25138 * focus. ({@link guide/expression#-event- Event object is available as `$event`})
25139 *
25140 * @example
25141 * See {@link ng.directive:ngClick ngClick}
25142 */
25143
25144/**
25145 * @ngdoc directive
25146 * @name ngBlur
25147 *
25148 * @description
25149 * Specify custom behavior on blur event.
25150 *
25151 * A [blur event](https://developer.mozilla.org/en-US/docs/Web/Events/blur) fires when
25152 * an element has lost focus.
25153 *
25154 * Note: As the `blur` event is executed synchronously also during DOM manipulations
25155 * (e.g. removing a focussed input),
25156 * AngularJS executes the expression using `scope.$evalAsync` if the event is fired
25157 * during an `$apply` to ensure a consistent state.
25158 *
25159 * @element window, input, select, textarea, a
25160 * @priority 0
25161 * @param {expression} ngBlur {@link guide/expression Expression} to evaluate upon
25162 * blur. ({@link guide/expression#-event- Event object is available as `$event`})
25163 *
25164 * @example
25165 * See {@link ng.directive:ngClick ngClick}
25166 */
25167
25168/**
25169 * @ngdoc directive
25170 * @name ngCopy
25171 *
25172 * @description
25173 * Specify custom behavior on copy event.
25174 *
25175 * @element window, input, select, textarea, a
25176 * @priority 0
25177 * @param {expression} ngCopy {@link guide/expression Expression} to evaluate upon
25178 * copy. ({@link guide/expression#-event- Event object is available as `$event`})
25179 *
25180 * @example
25181   <example>
25182     <file name="index.html">
25183      <input ng-copy="copied=true" ng-init="copied=false; value='copy me'" ng-model="value">
25184      copied: {{copied}}
25185     </file>
25186   </example>
25187 */
25188
25189/**
25190 * @ngdoc directive
25191 * @name ngCut
25192 *
25193 * @description
25194 * Specify custom behavior on cut event.
25195 *
25196 * @element window, input, select, textarea, a
25197 * @priority 0
25198 * @param {expression} ngCut {@link guide/expression Expression} to evaluate upon
25199 * cut. ({@link guide/expression#-event- Event object is available as `$event`})
25200 *
25201 * @example
25202   <example>
25203     <file name="index.html">
25204      <input ng-cut="cut=true" ng-init="cut=false; value='cut me'" ng-model="value">
25205      cut: {{cut}}
25206     </file>
25207   </example>
25208 */
25209
25210/**
25211 * @ngdoc directive
25212 * @name ngPaste
25213 *
25214 * @description
25215 * Specify custom behavior on paste event.
25216 *
25217 * @element window, input, select, textarea, a
25218 * @priority 0
25219 * @param {expression} ngPaste {@link guide/expression Expression} to evaluate upon
25220 * paste. ({@link guide/expression#-event- Event object is available as `$event`})
25221 *
25222 * @example
25223   <example>
25224     <file name="index.html">
25225      <input ng-paste="paste=true" ng-init="paste=false" placeholder='paste here'>
25226      pasted: {{paste}}
25227     </file>
25228   </example>
25229 */
25230
25231/**
25232 * @ngdoc directive
25233 * @name ngIf
25234 * @restrict A
25235 * @multiElement
25236 *
25237 * @description
25238 * The `ngIf` directive removes or recreates a portion of the DOM tree based on an
25239 * {expression}. If the expression assigned to `ngIf` evaluates to a false
25240 * value then the element is removed from the DOM, otherwise a clone of the
25241 * element is reinserted into the DOM.
25242 *
25243 * `ngIf` differs from `ngShow` and `ngHide` in that `ngIf` completely removes and recreates the
25244 * element in the DOM rather than changing its visibility via the `display` css property.  A common
25245 * case when this difference is significant is when using css selectors that rely on an element's
25246 * position within the DOM, such as the `:first-child` or `:last-child` pseudo-classes.
25247 *
25248 * Note that when an element is removed using `ngIf` its scope is destroyed and a new scope
25249 * is created when the element is restored.  The scope created within `ngIf` inherits from
25250 * its parent scope using
25251 * [prototypal inheritance](https://github.com/angular/angular.js/wiki/Understanding-Scopes#javascript-prototypal-inheritance).
25252 * An important implication of this is if `ngModel` is used within `ngIf` to bind to
25253 * a javascript primitive defined in the parent scope. In this case any modifications made to the
25254 * variable within the child scope will override (hide) the value in the parent scope.
25255 *
25256 * Also, `ngIf` recreates elements using their compiled state. An example of this behavior
25257 * is if an element's class attribute is directly modified after it's compiled, using something like
25258 * jQuery's `.addClass()` method, and the element is later removed. When `ngIf` recreates the element
25259 * the added class will be lost because the original compiled state is used to regenerate the element.
25260 *
25261 * Additionally, you can provide animations via the `ngAnimate` module to animate the `enter`
25262 * and `leave` effects.
25263 *
25264 * @animations
25265 * | Animation                        | Occurs                               |
25266 * |----------------------------------|-------------------------------------|
25267 * | {@link ng.$animate#enter enter}  | just after the `ngIf` contents change and a new DOM element is created and injected into the `ngIf` container |
25268 * | {@link ng.$animate#leave leave}  | just before the `ngIf` contents are removed from the DOM |
25269 *
25270 * @element ANY
25271 * @scope
25272 * @priority 600
25273 * @param {expression} ngIf If the {@link guide/expression expression} is falsy then
25274 *     the element is removed from the DOM tree. If it is truthy a copy of the compiled
25275 *     element is added to the DOM tree.
25276 *
25277 * @example
25278  <example module="ngAnimate" deps="angular-animate.js" animations="true">
25279    <file name="index.html">
25280      <label>Click me: <input type="checkbox" ng-model="checked" ng-init="checked=true" /></label><br/>
25281      Show when checked:
25282      <span ng-if="checked" class="animate-if">
25283        This is removed when the checkbox is unchecked.
25284      </span>
25285    </file>
25286    <file name="animations.css">
25287      .animate-if {
25288        background:white;
25289        border:1px solid black;
25290        padding:10px;
25291      }
25292
25293      .animate-if.ng-enter, .animate-if.ng-leave {
25294        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;
25295      }
25296
25297      .animate-if.ng-enter,
25298      .animate-if.ng-leave.ng-leave-active {
25299        opacity:0;
25300      }
25301
25302      .animate-if.ng-leave,
25303      .animate-if.ng-enter.ng-enter-active {
25304        opacity:1;
25305      }
25306    </file>
25307  </example>
25308 */
25309var ngIfDirective = ['$animate', '$compile', function($animate, $compile) {
25310  return {
25311    multiElement: true,
25312    transclude: 'element',
25313    priority: 600,
25314    terminal: true,
25315    restrict: 'A',
25316    $$tlb: true,
25317    link: function($scope, $element, $attr, ctrl, $transclude) {
25318        var block, childScope, previousElements;
25319        $scope.$watch($attr.ngIf, function ngIfWatchAction(value) {
25320
25321          if (value) {
25322            if (!childScope) {
25323              $transclude(function(clone, newScope) {
25324                childScope = newScope;
25325                clone[clone.length++] = $compile.$$createComment('end ngIf', $attr.ngIf);
25326                // Note: We only need the first/last node of the cloned nodes.
25327                // However, we need to keep the reference to the jqlite wrapper as it might be changed later
25328                // by a directive with templateUrl when its template arrives.
25329                block = {
25330                  clone: clone
25331                };
25332                $animate.enter(clone, $element.parent(), $element);
25333              });
25334            }
25335          } else {
25336            if (previousElements) {
25337              previousElements.remove();
25338              previousElements = null;
25339            }
25340            if (childScope) {
25341              childScope.$destroy();
25342              childScope = null;
25343            }
25344            if (block) {
25345              previousElements = getBlockNodes(block.clone);
25346              $animate.leave(previousElements).then(function() {
25347                previousElements = null;
25348              });
25349              block = null;
25350            }
25351          }
25352        });
25353    }
25354  };
25355}];
25356
25357/**
25358 * @ngdoc directive
25359 * @name ngInclude
25360 * @restrict ECA
25361 *
25362 * @description
25363 * Fetches, compiles and includes an external HTML fragment.
25364 *
25365 * By default, the template URL is restricted to the same domain and protocol as the
25366 * application document. This is done by calling {@link $sce#getTrustedResourceUrl
25367 * $sce.getTrustedResourceUrl} on it. To load templates from other domains or protocols
25368 * you may either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist them} or
25369 * {@link $sce#trustAsResourceUrl wrap them} as trusted values. Refer to Angular's {@link
25370 * ng.$sce Strict Contextual Escaping}.
25371 *
25372 * In addition, the browser's
25373 * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest)
25374 * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/)
25375 * policy may further restrict whether the template is successfully loaded.
25376 * For example, `ngInclude` won't work for cross-domain requests on all browsers and for `file://`
25377 * access on some browsers.
25378 *
25379 * @animations
25380 * | Animation                        | Occurs                              |
25381 * |----------------------------------|-------------------------------------|
25382 * | {@link ng.$animate#enter enter}  | when the expression changes, on the new include |
25383 * | {@link ng.$animate#leave leave}  | when the expression changes, on the old include |
25384 *
25385 * The enter and leave animation occur concurrently.
25386 *
25387 * @scope
25388 * @priority 400
25389 *
25390 * @param {string} ngInclude|src angular expression evaluating to URL. If the source is a string constant,
25391 *                 make sure you wrap it in **single** quotes, e.g. `src="'myPartialTemplate.html'"`.
25392 * @param {string=} onload Expression to evaluate when a new partial is loaded.
25393 *                  <div class="alert alert-warning">
25394 *                  **Note:** When using onload on SVG elements in IE11, the browser will try to call
25395 *                  a function with the name on the window element, which will usually throw a
25396 *                  "function is undefined" error. To fix this, you can instead use `data-onload` or a
25397 *                  different form that {@link guide/directive#normalization matches} `onload`.
25398 *                  </div>
25399   *
25400 * @param {string=} autoscroll Whether `ngInclude` should call {@link ng.$anchorScroll
25401 *                  $anchorScroll} to scroll the viewport after the content is loaded.
25402 *
25403 *                  - If the attribute is not set, disable scrolling.
25404 *                  - If the attribute is set without value, enable scrolling.
25405 *                  - Otherwise enable scrolling only if the expression evaluates to truthy value.
25406 *
25407 * @example
25408  <example module="includeExample" deps="angular-animate.js" animations="true">
25409    <file name="index.html">
25410     <div ng-controller="ExampleController">
25411       <select ng-model="template" ng-options="t.name for t in templates">
25412        <option value="">(blank)</option>
25413       </select>
25414       url of the template: <code>{{template.url}}</code>
25415       <hr/>
25416       <div class="slide-animate-container">
25417         <div class="slide-animate" ng-include="template.url"></div>
25418       </div>
25419     </div>
25420    </file>
25421    <file name="script.js">
25422      angular.module('includeExample', ['ngAnimate'])
25423        .controller('ExampleController', ['$scope', function($scope) {
25424          $scope.templates =
25425            [ { name: 'template1.html', url: 'template1.html'},
25426              { name: 'template2.html', url: 'template2.html'} ];
25427          $scope.template = $scope.templates[0];
25428        }]);
25429     </file>
25430    <file name="template1.html">
25431      Content of template1.html
25432    </file>
25433    <file name="template2.html">
25434      Content of template2.html
25435    </file>
25436    <file name="animations.css">
25437      .slide-animate-container {
25438        position:relative;
25439        background:white;
25440        border:1px solid black;
25441        height:40px;
25442        overflow:hidden;
25443      }
25444
25445      .slide-animate {
25446        padding:10px;
25447      }
25448
25449      .slide-animate.ng-enter, .slide-animate.ng-leave {
25450        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;
25451
25452        position:absolute;
25453        top:0;
25454        left:0;
25455        right:0;
25456        bottom:0;
25457        display:block;
25458        padding:10px;
25459      }
25460
25461      .slide-animate.ng-enter {
25462        top:-50px;
25463      }
25464      .slide-animate.ng-enter.ng-enter-active {
25465        top:0;
25466      }
25467
25468      .slide-animate.ng-leave {
25469        top:0;
25470      }
25471      .slide-animate.ng-leave.ng-leave-active {
25472        top:50px;
25473      }
25474    </file>
25475    <file name="protractor.js" type="protractor">
25476      var templateSelect = element(by.model('template'));
25477      var includeElem = element(by.css('[ng-include]'));
25478
25479      it('should load template1.html', function() {
25480        expect(includeElem.getText()).toMatch(/Content of template1.html/);
25481      });
25482
25483      it('should load template2.html', function() {
25484        if (browser.params.browser == 'firefox') {
25485          // Firefox can't handle using selects
25486          // See https://github.com/angular/protractor/issues/480
25487          return;
25488        }
25489        templateSelect.click();
25490        templateSelect.all(by.css('option')).get(2).click();
25491        expect(includeElem.getText()).toMatch(/Content of template2.html/);
25492      });
25493
25494      it('should change to blank', function() {
25495        if (browser.params.browser == 'firefox') {
25496          // Firefox can't handle using selects
25497          return;
25498        }
25499        templateSelect.click();
25500        templateSelect.all(by.css('option')).get(0).click();
25501        expect(includeElem.isPresent()).toBe(false);
25502      });
25503    </file>
25504  </example>
25505 */
25506
25507
25508/**
25509 * @ngdoc event
25510 * @name ngInclude#$includeContentRequested
25511 * @eventType emit on the scope ngInclude was declared in
25512 * @description
25513 * Emitted every time the ngInclude content is requested.
25514 *
25515 * @param {Object} angularEvent Synthetic event object.
25516 * @param {String} src URL of content to load.
25517 */
25518
25519
25520/**
25521 * @ngdoc event
25522 * @name ngInclude#$includeContentLoaded
25523 * @eventType emit on the current ngInclude scope
25524 * @description
25525 * Emitted every time the ngInclude content is reloaded.
25526 *
25527 * @param {Object} angularEvent Synthetic event object.
25528 * @param {String} src URL of content to load.
25529 */
25530
25531
25532/**
25533 * @ngdoc event
25534 * @name ngInclude#$includeContentError
25535 * @eventType emit on the scope ngInclude was declared in
25536 * @description
25537 * Emitted when a template HTTP request yields an erroneous response (status < 200 || status > 299)
25538 *
25539 * @param {Object} angularEvent Synthetic event object.
25540 * @param {String} src URL of content to load.
25541 */
25542var ngIncludeDirective = ['$templateRequest', '$anchorScroll', '$animate',
25543                  function($templateRequest,   $anchorScroll,   $animate) {
25544  return {
25545    restrict: 'ECA',
25546    priority: 400,
25547    terminal: true,
25548    transclude: 'element',
25549    controller: angular.noop,
25550    compile: function(element, attr) {
25551      var srcExp = attr.ngInclude || attr.src,
25552          onloadExp = attr.onload || '',
25553          autoScrollExp = attr.autoscroll;
25554
25555      return function(scope, $element, $attr, ctrl, $transclude) {
25556        var changeCounter = 0,
25557            currentScope,
25558            previousElement,
25559            currentElement;
25560
25561        var cleanupLastIncludeContent = function() {
25562          if (previousElement) {
25563            previousElement.remove();
25564            previousElement = null;
25565          }
25566          if (currentScope) {
25567            currentScope.$destroy();
25568            currentScope = null;
25569          }
25570          if (currentElement) {
25571            $animate.leave(currentElement).then(function() {
25572              previousElement = null;
25573            });
25574            previousElement = currentElement;
25575            currentElement = null;
25576          }
25577        };
25578
25579        scope.$watch(srcExp, function ngIncludeWatchAction(src) {
25580          var afterAnimation = function() {
25581            if (isDefined(autoScrollExp) && (!autoScrollExp || scope.$eval(autoScrollExp))) {
25582              $anchorScroll();
25583            }
25584          };
25585          var thisChangeId = ++changeCounter;
25586
25587          if (src) {
25588            //set the 2nd param to true to ignore the template request error so that the inner
25589            //contents and scope can be cleaned up.
25590            $templateRequest(src, true).then(function(response) {
25591              if (scope.$$destroyed) return;
25592
25593              if (thisChangeId !== changeCounter) return;
25594              var newScope = scope.$new();
25595              ctrl.template = response;
25596
25597              // Note: This will also link all children of ng-include that were contained in the original
25598              // html. If that content contains controllers, ... they could pollute/change the scope.
25599              // However, using ng-include on an element with additional content does not make sense...
25600              // Note: We can't remove them in the cloneAttchFn of $transclude as that
25601              // function is called before linking the content, which would apply child
25602              // directives to non existing elements.
25603              var clone = $transclude(newScope, function(clone) {
25604                cleanupLastIncludeContent();
25605                $animate.enter(clone, null, $element).then(afterAnimation);
25606              });
25607
25608              currentScope = newScope;
25609              currentElement = clone;
25610
25611              currentScope.$emit('$includeContentLoaded', src);
25612              scope.$eval(onloadExp);
25613            }, function() {
25614              if (scope.$$destroyed) return;
25615
25616              if (thisChangeId === changeCounter) {
25617                cleanupLastIncludeContent();
25618                scope.$emit('$includeContentError', src);
25619              }
25620            });
25621            scope.$emit('$includeContentRequested', src);
25622          } else {
25623            cleanupLastIncludeContent();
25624            ctrl.template = null;
25625          }
25626        });
25627      };
25628    }
25629  };
25630}];
25631
25632// This directive is called during the $transclude call of the first `ngInclude` directive.
25633// It will replace and compile the content of the element with the loaded template.
25634// We need this directive so that the element content is already filled when
25635// the link function of another directive on the same element as ngInclude
25636// is called.
25637var ngIncludeFillContentDirective = ['$compile',
25638  function($compile) {
25639    return {
25640      restrict: 'ECA',
25641      priority: -400,
25642      require: 'ngInclude',
25643      link: function(scope, $element, $attr, ctrl) {
25644        if (toString.call($element[0]).match(/SVG/)) {
25645          // WebKit: https://bugs.webkit.org/show_bug.cgi?id=135698 --- SVG elements do not
25646          // support innerHTML, so detect this here and try to generate the contents
25647          // specially.
25648          $element.empty();
25649          $compile(jqLiteBuildFragment(ctrl.template, document).childNodes)(scope,
25650              function namespaceAdaptedClone(clone) {
25651            $element.append(clone);
25652          }, {futureParentElement: $element});
25653          return;
25654        }
25655
25656        $element.html(ctrl.template);
25657        $compile($element.contents())(scope);
25658      }
25659    };
25660  }];
25661
25662/**
25663 * @ngdoc directive
25664 * @name ngInit
25665 * @restrict AC
25666 *
25667 * @description
25668 * The `ngInit` directive allows you to evaluate an expression in the
25669 * current scope.
25670 *
25671 * <div class="alert alert-danger">
25672 * This directive can be abused to add unnecessary amounts of logic into your templates.
25673 * There are only a few appropriate uses of `ngInit`, such as for aliasing special properties of
25674 * {@link ng.directive:ngRepeat `ngRepeat`}, as seen in the demo below; and for injecting data via
25675 * server side scripting. Besides these few cases, you should use {@link guide/controller controllers}
25676 * rather than `ngInit` to initialize values on a scope.
25677 * </div>
25678 *
25679 * <div class="alert alert-warning">
25680 * **Note**: If you have assignment in `ngInit` along with a {@link ng.$filter `filter`}, make
25681 * sure you have parentheses to ensure correct operator precedence:
25682 * <pre class="prettyprint">
25683 * `<div ng-init="test1 = ($index | toString)"></div>`
25684 * </pre>
25685 * </div>
25686 *
25687 * @priority 450
25688 *
25689 * @element ANY
25690 * @param {expression} ngInit {@link guide/expression Expression} to eval.
25691 *
25692 * @example
25693   <example module="initExample">
25694     <file name="index.html">
25695   <script>
25696     angular.module('initExample', [])
25697       .controller('ExampleController', ['$scope', function($scope) {
25698         $scope.list = [['a', 'b'], ['c', 'd']];
25699       }]);
25700   </script>
25701   <div ng-controller="ExampleController">
25702     <div ng-repeat="innerList in list" ng-init="outerIndex = $index">
25703       <div ng-repeat="value in innerList" ng-init="innerIndex = $index">
25704          <span class="example-init">list[ {{outerIndex}} ][ {{innerIndex}} ] = {{value}};</span>
25705       </div>
25706     </div>
25707   </div>
25708     </file>
25709     <file name="protractor.js" type="protractor">
25710       it('should alias index positions', function() {
25711         var elements = element.all(by.css('.example-init'));
25712         expect(elements.get(0).getText()).toBe('list[ 0 ][ 0 ] = a;');
25713         expect(elements.get(1).getText()).toBe('list[ 0 ][ 1 ] = b;');
25714         expect(elements.get(2).getText()).toBe('list[ 1 ][ 0 ] = c;');
25715         expect(elements.get(3).getText()).toBe('list[ 1 ][ 1 ] = d;');
25716       });
25717     </file>
25718   </example>
25719 */
25720var ngInitDirective = ngDirective({
25721  priority: 450,
25722  compile: function() {
25723    return {
25724      pre: function(scope, element, attrs) {
25725        scope.$eval(attrs.ngInit);
25726      }
25727    };
25728  }
25729});
25730
25731/**
25732 * @ngdoc directive
25733 * @name ngList
25734 *
25735 * @description
25736 * Text input that converts between a delimited string and an array of strings. The default
25737 * delimiter is a comma followed by a space - equivalent to `ng-list=", "`. You can specify a custom
25738 * delimiter as the value of the `ngList` attribute - for example, `ng-list=" | "`.
25739 *
25740 * The behaviour of the directive is affected by the use of the `ngTrim` attribute.
25741 * * If `ngTrim` is set to `"false"` then whitespace around both the separator and each
25742 *   list item is respected. This implies that the user of the directive is responsible for
25743 *   dealing with whitespace but also allows you to use whitespace as a delimiter, such as a
25744 *   tab or newline character.
25745 * * Otherwise whitespace around the delimiter is ignored when splitting (although it is respected
25746 *   when joining the list items back together) and whitespace around each list item is stripped
25747 *   before it is added to the model.
25748 *
25749 * ### Example with Validation
25750 *
25751 * <example name="ngList-directive" module="listExample">
25752 *   <file name="app.js">
25753 *      angular.module('listExample', [])
25754 *        .controller('ExampleController', ['$scope', function($scope) {
25755 *          $scope.names = ['morpheus', 'neo', 'trinity'];
25756 *        }]);
25757 *   </file>
25758 *   <file name="index.html">
25759 *    <form name="myForm" ng-controller="ExampleController">
25760 *      <label>List: <input name="namesInput" ng-model="names" ng-list required></label>
25761 *      <span role="alert">
25762 *        <span class="error" ng-show="myForm.namesInput.$error.required">
25763 *        Required!</span>
25764 *      </span>
25765 *      <br>
25766 *      <tt>names = {{names}}</tt><br/>
25767 *      <tt>myForm.namesInput.$valid = {{myForm.namesInput.$valid}}</tt><br/>
25768 *      <tt>myForm.namesInput.$error = {{myForm.namesInput.$error}}</tt><br/>
25769 *      <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
25770 *      <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
25771 *     </form>
25772 *   </file>
25773 *   <file name="protractor.js" type="protractor">
25774 *     var listInput = element(by.model('names'));
25775 *     var names = element(by.exactBinding('names'));
25776 *     var valid = element(by.binding('myForm.namesInput.$valid'));
25777 *     var error = element(by.css('span.error'));
25778 *
25779 *     it('should initialize to model', function() {
25780 *       expect(names.getText()).toContain('["morpheus","neo","trinity"]');
25781 *       expect(valid.getText()).toContain('true');
25782 *       expect(error.getCssValue('display')).toBe('none');
25783 *     });
25784 *
25785 *     it('should be invalid if empty', function() {
25786 *       listInput.clear();
25787 *       listInput.sendKeys('');
25788 *
25789 *       expect(names.getText()).toContain('');
25790 *       expect(valid.getText()).toContain('false');
25791 *       expect(error.getCssValue('display')).not.toBe('none');
25792 *     });
25793 *   </file>
25794 * </example>
25795 *
25796 * ### Example - splitting on newline
25797 * <example name="ngList-directive-newlines">
25798 *   <file name="index.html">
25799 *    <textarea ng-model="list" ng-list="&#10;" ng-trim="false"></textarea>
25800 *    <pre>{{ list | json }}</pre>
25801 *   </file>
25802 *   <file name="protractor.js" type="protractor">
25803 *     it("should split the text by newlines", function() {
25804 *       var listInput = element(by.model('list'));
25805 *       var output = element(by.binding('list | json'));
25806 *       listInput.sendKeys('abc\ndef\nghi');
25807 *       expect(output.getText()).toContain('[\n  "abc",\n  "def",\n  "ghi"\n]');
25808 *     });
25809 *   </file>
25810 * </example>
25811 *
25812 * @element input
25813 * @param {string=} ngList optional delimiter that should be used to split the value.
25814 */
25815var ngListDirective = function() {
25816  return {
25817    restrict: 'A',
25818    priority: 100,
25819    require: 'ngModel',
25820    link: function(scope, element, attr, ctrl) {
25821      // We want to control whitespace trimming so we use this convoluted approach
25822      // to access the ngList attribute, which doesn't pre-trim the attribute
25823      var ngList = element.attr(attr.$attr.ngList) || ', ';
25824      var trimValues = attr.ngTrim !== 'false';
25825      var separator = trimValues ? trim(ngList) : ngList;
25826
25827      var parse = function(viewValue) {
25828        // If the viewValue is invalid (say required but empty) it will be `undefined`
25829        if (isUndefined(viewValue)) return;
25830
25831        var list = [];
25832
25833        if (viewValue) {
25834          forEach(viewValue.split(separator), function(value) {
25835            if (value) list.push(trimValues ? trim(value) : value);
25836          });
25837        }
25838
25839        return list;
25840      };
25841
25842      ctrl.$parsers.push(parse);
25843      ctrl.$formatters.push(function(value) {
25844        if (isArray(value)) {
25845          return value.join(ngList);
25846        }
25847
25848        return undefined;
25849      });
25850
25851      // Override the standard $isEmpty because an empty array means the input is empty.
25852      ctrl.$isEmpty = function(value) {
25853        return !value || !value.length;
25854      };
25855    }
25856  };
25857};
25858
25859/* global VALID_CLASS: true,
25860  INVALID_CLASS: true,
25861  PRISTINE_CLASS: true,
25862  DIRTY_CLASS: true,
25863  UNTOUCHED_CLASS: true,
25864  TOUCHED_CLASS: true,
25865*/
25866
25867var VALID_CLASS = 'ng-valid',
25868    INVALID_CLASS = 'ng-invalid',
25869    PRISTINE_CLASS = 'ng-pristine',
25870    DIRTY_CLASS = 'ng-dirty',
25871    UNTOUCHED_CLASS = 'ng-untouched',
25872    TOUCHED_CLASS = 'ng-touched',
25873    PENDING_CLASS = 'ng-pending',
25874    EMPTY_CLASS = 'ng-empty',
25875    NOT_EMPTY_CLASS = 'ng-not-empty';
25876
25877var ngModelMinErr = minErr('ngModel');
25878
25879/**
25880 * @ngdoc type
25881 * @name ngModel.NgModelController
25882 *
25883 * @property {*} $viewValue The actual value from the control's view. For `input` elements, this is a
25884 * String. See {@link ngModel.NgModelController#$setViewValue} for information about when the $viewValue
25885 * is set.
25886 * @property {*} $modelValue The value in the model that the control is bound to.
25887 * @property {Array.<Function>} $parsers Array of functions to execute, as a pipeline, whenever
25888       the control reads value from the DOM. The functions are called in array order, each passing
25889       its return value through to the next. The last return value is forwarded to the
25890       {@link ngModel.NgModelController#$validators `$validators`} collection.
25891
25892Parsers are used to sanitize / convert the {@link ngModel.NgModelController#$viewValue
25893`$viewValue`}.
25894
25895Returning `undefined` from a parser means a parse error occurred. In that case,
25896no {@link ngModel.NgModelController#$validators `$validators`} will run and the `ngModel`
25897will be set to `undefined` unless {@link ngModelOptions `ngModelOptions.allowInvalid`}
25898is set to `true`. The parse error is stored in `ngModel.$error.parse`.
25899
25900 *
25901 * @property {Array.<Function>} $formatters Array of functions to execute, as a pipeline, whenever
25902       the model value changes. The functions are called in reverse array order, each passing the value through to the
25903       next. The last return value is used as the actual DOM value.
25904       Used to format / convert values for display in the control.
25905 * ```js
25906 * function formatter(value) {
25907 *   if (value) {
25908 *     return value.toUpperCase();
25909 *   }
25910 * }
25911 * ngModel.$formatters.push(formatter);
25912 * ```
25913 *
25914 * @property {Object.<string, function>} $validators A collection of validators that are applied
25915 *      whenever the model value changes. The key value within the object refers to the name of the
25916 *      validator while the function refers to the validation operation. The validation operation is
25917 *      provided with the model value as an argument and must return a true or false value depending
25918 *      on the response of that validation.
25919 *
25920 * ```js
25921 * ngModel.$validators.validCharacters = function(modelValue, viewValue) {
25922 *   var value = modelValue || viewValue;
25923 *   return /[0-9]+/.test(value) &&
25924 *          /[a-z]+/.test(value) &&
25925 *          /[A-Z]+/.test(value) &&
25926 *          /\W+/.test(value);
25927 * };
25928 * ```
25929 *
25930 * @property {Object.<string, function>} $asyncValidators A collection of validations that are expected to
25931 *      perform an asynchronous validation (e.g. a HTTP request). The validation function that is provided
25932 *      is expected to return a promise when it is run during the model validation process. Once the promise
25933 *      is delivered then the validation status will be set to true when fulfilled and false when rejected.
25934 *      When the asynchronous validators are triggered, each of the validators will run in parallel and the model
25935 *      value will only be updated once all validators have been fulfilled. As long as an asynchronous validator
25936 *      is unfulfilled, its key will be added to the controllers `$pending` property. Also, all asynchronous validators
25937 *      will only run once all synchronous validators have passed.
25938 *
25939 * Please note that if $http is used then it is important that the server returns a success HTTP response code
25940 * in order to fulfill the validation and a status level of `4xx` in order to reject the validation.
25941 *
25942 * ```js
25943 * ngModel.$asyncValidators.uniqueUsername = function(modelValue, viewValue) {
25944 *   var value = modelValue || viewValue;
25945 *
25946 *   // Lookup user by username
25947 *   return $http.get('/api/users/' + value).
25948 *      then(function resolved() {
25949 *        //username exists, this means validation fails
25950 *        return $q.reject('exists');
25951 *      }, function rejected() {
25952 *        //username does not exist, therefore this validation passes
25953 *        return true;
25954 *      });
25955 * };
25956 * ```
25957 *
25958 * @property {Array.<Function>} $viewChangeListeners Array of functions to execute whenever the
25959 *     view value has changed. It is called with no arguments, and its return value is ignored.
25960 *     This can be used in place of additional $watches against the model value.
25961 *
25962 * @property {Object} $error An object hash with all failing validator ids as keys.
25963 * @property {Object} $pending An object hash with all pending validator ids as keys.
25964 *
25965 * @property {boolean} $untouched True if control has not lost focus yet.
25966 * @property {boolean} $touched True if control has lost focus.
25967 * @property {boolean} $pristine True if user has not interacted with the control yet.
25968 * @property {boolean} $dirty True if user has already interacted with the control.
25969 * @property {boolean} $valid True if there is no error.
25970 * @property {boolean} $invalid True if at least one error on the control.
25971 * @property {string} $name The name attribute of the control.
25972 *
25973 * @description
25974 *
25975 * `NgModelController` provides API for the {@link ngModel `ngModel`} directive.
25976 * The controller contains services for data-binding, validation, CSS updates, and value formatting
25977 * and parsing. It purposefully does not contain any logic which deals with DOM rendering or
25978 * listening to DOM events.
25979 * Such DOM related logic should be provided by other directives which make use of
25980 * `NgModelController` for data-binding to control elements.
25981 * Angular provides this DOM logic for most {@link input `input`} elements.
25982 * At the end of this page you can find a {@link ngModel.NgModelController#custom-control-example
25983 * custom control example} that uses `ngModelController` to bind to `contenteditable` elements.
25984 *
25985 * @example
25986 * ### Custom Control Example
25987 * This example shows how to use `NgModelController` with a custom control to achieve
25988 * data-binding. Notice how different directives (`contenteditable`, `ng-model`, and `required`)
25989 * collaborate together to achieve the desired result.
25990 *
25991 * `contenteditable` is an HTML5 attribute, which tells the browser to let the element
25992 * contents be edited in place by the user.
25993 *
25994 * We are using the {@link ng.service:$sce $sce} service here and include the {@link ngSanitize $sanitize}
25995 * module to automatically remove "bad" content like inline event listener (e.g. `<span onclick="...">`).
25996 * However, as we are using `$sce` the model can still decide to provide unsafe content if it marks
25997 * that content using the `$sce` service.
25998 *
25999 * <example name="NgModelController" module="customControl" deps="angular-sanitize.js">
26000    <file name="style.css">
26001      [contenteditable] {
26002        border: 1px solid black;
26003        background-color: white;
26004        min-height: 20px;
26005      }
26006
26007      .ng-invalid {
26008        border: 1px solid red;
26009      }
26010
26011    </file>
26012    <file name="script.js">
26013      angular.module('customControl', ['ngSanitize']).
26014        directive('contenteditable', ['$sce', function($sce) {
26015          return {
26016            restrict: 'A', // only activate on element attribute
26017            require: '?ngModel', // get a hold of NgModelController
26018            link: function(scope, element, attrs, ngModel) {
26019              if (!ngModel) return; // do nothing if no ng-model
26020
26021              // Specify how UI should be updated
26022              ngModel.$render = function() {
26023                element.html($sce.getTrustedHtml(ngModel.$viewValue || ''));
26024              };
26025
26026              // Listen for change events to enable binding
26027              element.on('blur keyup change', function() {
26028                scope.$evalAsync(read);
26029              });
26030              read(); // initialize
26031
26032              // Write data to the model
26033              function read() {
26034                var html = element.html();
26035                // When we clear the content editable the browser leaves a <br> behind
26036                // If strip-br attribute is provided then we strip this out
26037                if ( attrs.stripBr && html == '<br>' ) {
26038                  html = '';
26039                }
26040                ngModel.$setViewValue(html);
26041              }
26042            }
26043          };
26044        }]);
26045    </file>
26046    <file name="index.html">
26047      <form name="myForm">
26048       <div contenteditable
26049            name="myWidget" ng-model="userContent"
26050            strip-br="true"
26051            required>Change me!</div>
26052        <span ng-show="myForm.myWidget.$error.required">Required!</span>
26053       <hr>
26054       <textarea ng-model="userContent" aria-label="Dynamic textarea"></textarea>
26055      </form>
26056    </file>
26057    <file name="protractor.js" type="protractor">
26058    it('should data-bind and become invalid', function() {
26059      if (browser.params.browser == 'safari' || browser.params.browser == 'firefox') {
26060        // SafariDriver can't handle contenteditable
26061        // and Firefox driver can't clear contenteditables very well
26062        return;
26063      }
26064      var contentEditable = element(by.css('[contenteditable]'));
26065      var content = 'Change me!';
26066
26067      expect(contentEditable.getText()).toEqual(content);
26068
26069      contentEditable.clear();
26070      contentEditable.sendKeys(protractor.Key.BACK_SPACE);
26071      expect(contentEditable.getText()).toEqual('');
26072      expect(contentEditable.getAttribute('class')).toMatch(/ng-invalid-required/);
26073    });
26074    </file>
26075 * </example>
26076 *
26077 *
26078 */
26079var NgModelController = ['$scope', '$exceptionHandler', '$attrs', '$element', '$parse', '$animate', '$timeout', '$rootScope', '$q', '$interpolate',
26080    function($scope, $exceptionHandler, $attr, $element, $parse, $animate, $timeout, $rootScope, $q, $interpolate) {
26081  this.$viewValue = Number.NaN;
26082  this.$modelValue = Number.NaN;
26083  this.$$rawModelValue = undefined; // stores the parsed modelValue / model set from scope regardless of validity.
26084  this.$validators = {};
26085  this.$asyncValidators = {};
26086  this.$parsers = [];
26087  this.$formatters = [];
26088  this.$viewChangeListeners = [];
26089  this.$untouched = true;
26090  this.$touched = false;
26091  this.$pristine = true;
26092  this.$dirty = false;
26093  this.$valid = true;
26094  this.$invalid = false;
26095  this.$error = {}; // keep invalid keys here
26096  this.$$success = {}; // keep valid keys here
26097  this.$pending = undefined; // keep pending keys here
26098  this.$name = $interpolate($attr.name || '', false)($scope);
26099  this.$$parentForm = nullFormCtrl;
26100
26101  var parsedNgModel = $parse($attr.ngModel),
26102      parsedNgModelAssign = parsedNgModel.assign,
26103      ngModelGet = parsedNgModel,
26104      ngModelSet = parsedNgModelAssign,
26105      pendingDebounce = null,
26106      parserValid,
26107      ctrl = this;
26108
26109  this.$$setOptions = function(options) {
26110    ctrl.$options = options;
26111    if (options && options.getterSetter) {
26112      var invokeModelGetter = $parse($attr.ngModel + '()'),
26113          invokeModelSetter = $parse($attr.ngModel + '($$$p)');
26114
26115      ngModelGet = function($scope) {
26116        var modelValue = parsedNgModel($scope);
26117        if (isFunction(modelValue)) {
26118          modelValue = invokeModelGetter($scope);
26119        }
26120        return modelValue;
26121      };
26122      ngModelSet = function($scope, newValue) {
26123        if (isFunction(parsedNgModel($scope))) {
26124          invokeModelSetter($scope, {$$$p: newValue});
26125        } else {
26126          parsedNgModelAssign($scope, newValue);
26127        }
26128      };
26129    } else if (!parsedNgModel.assign) {
26130      throw ngModelMinErr('nonassign', "Expression '{0}' is non-assignable. Element: {1}",
26131          $attr.ngModel, startingTag($element));
26132    }
26133  };
26134
26135  /**
26136   * @ngdoc method
26137   * @name ngModel.NgModelController#$render
26138   *
26139   * @description
26140   * Called when the view needs to be updated. It is expected that the user of the ng-model
26141   * directive will implement this method.
26142   *
26143   * The `$render()` method is invoked in the following situations:
26144   *
26145   * * `$rollbackViewValue()` is called.  If we are rolling back the view value to the last
26146   *   committed value then `$render()` is called to update the input control.
26147   * * The value referenced by `ng-model` is changed programmatically and both the `$modelValue` and
26148   *   the `$viewValue` are different from last time.
26149   *
26150   * Since `ng-model` does not do a deep watch, `$render()` is only invoked if the values of
26151   * `$modelValue` and `$viewValue` are actually different from their previous values. If `$modelValue`
26152   * or `$viewValue` are objects (rather than a string or number) then `$render()` will not be
26153   * invoked if you only change a property on the objects.
26154   */
26155  this.$render = noop;
26156
26157  /**
26158   * @ngdoc method
26159   * @name ngModel.NgModelController#$isEmpty
26160   *
26161   * @description
26162   * This is called when we need to determine if the value of an input is empty.
26163   *
26164   * For instance, the required directive does this to work out if the input has data or not.
26165   *
26166   * The default `$isEmpty` function checks whether the value is `undefined`, `''`, `null` or `NaN`.
26167   *
26168   * You can override this for input directives whose concept of being empty is different from the
26169   * default. The `checkboxInputType` directive does this because in its case a value of `false`
26170   * implies empty.
26171   *
26172   * @param {*} value The value of the input to check for emptiness.
26173   * @returns {boolean} True if `value` is "empty".
26174   */
26175  this.$isEmpty = function(value) {
26176    return isUndefined(value) || value === '' || value === null || value !== value;
26177  };
26178
26179  this.$$updateEmptyClasses = function(value) {
26180    if (ctrl.$isEmpty(value)) {
26181      $animate.removeClass($element, NOT_EMPTY_CLASS);
26182      $animate.addClass($element, EMPTY_CLASS);
26183    } else {
26184      $animate.removeClass($element, EMPTY_CLASS);
26185      $animate.addClass($element, NOT_EMPTY_CLASS);
26186    }
26187  };
26188
26189
26190  var currentValidationRunId = 0;
26191
26192  /**
26193   * @ngdoc method
26194   * @name ngModel.NgModelController#$setValidity
26195   *
26196   * @description
26197   * Change the validity state, and notify the form.
26198   *
26199   * This method can be called within $parsers/$formatters or a custom validation implementation.
26200   * However, in most cases it should be sufficient to use the `ngModel.$validators` and
26201   * `ngModel.$asyncValidators` collections which will call `$setValidity` automatically.
26202   *
26203   * @param {string} validationErrorKey Name of the validator. The `validationErrorKey` will be assigned
26204   *        to either `$error[validationErrorKey]` or `$pending[validationErrorKey]`
26205   *        (for unfulfilled `$asyncValidators`), so that it is available for data-binding.
26206   *        The `validationErrorKey` should be in camelCase and will get converted into dash-case
26207   *        for class name. Example: `myError` will result in `ng-valid-my-error` and `ng-invalid-my-error`
26208   *        class and can be bound to as  `{{someForm.someControl.$error.myError}}` .
26209   * @param {boolean} isValid Whether the current state is valid (true), invalid (false), pending (undefined),
26210   *                          or skipped (null). Pending is used for unfulfilled `$asyncValidators`.
26211   *                          Skipped is used by Angular when validators do not run because of parse errors and
26212   *                          when `$asyncValidators` do not run because any of the `$validators` failed.
26213   */
26214  addSetValidityMethod({
26215    ctrl: this,
26216    $element: $element,
26217    set: function(object, property) {
26218      object[property] = true;
26219    },
26220    unset: function(object, property) {
26221      delete object[property];
26222    },
26223    $animate: $animate
26224  });
26225
26226  /**
26227   * @ngdoc method
26228   * @name ngModel.NgModelController#$setPristine
26229   *
26230   * @description
26231   * Sets the control to its pristine state.
26232   *
26233   * This method can be called to remove the `ng-dirty` class and set the control to its pristine
26234   * state (`ng-pristine` class). A model is considered to be pristine when the control
26235   * has not been changed from when first compiled.
26236   */
26237  this.$setPristine = function() {
26238    ctrl.$dirty = false;
26239    ctrl.$pristine = true;
26240    $animate.removeClass($element, DIRTY_CLASS);
26241    $animate.addClass($element, PRISTINE_CLASS);
26242  };
26243
26244  /**
26245   * @ngdoc method
26246   * @name ngModel.NgModelController#$setDirty
26247   *
26248   * @description
26249   * Sets the control to its dirty state.
26250   *
26251   * This method can be called to remove the `ng-pristine` class and set the control to its dirty
26252   * state (`ng-dirty` class). A model is considered to be dirty when the control has been changed
26253   * from when first compiled.
26254   */
26255  this.$setDirty = function() {
26256    ctrl.$dirty = true;
26257    ctrl.$pristine = false;
26258    $animate.removeClass($element, PRISTINE_CLASS);
26259    $animate.addClass($element, DIRTY_CLASS);
26260    ctrl.$$parentForm.$setDirty();
26261  };
26262
26263  /**
26264   * @ngdoc method
26265   * @name ngModel.NgModelController#$setUntouched
26266   *
26267   * @description
26268   * Sets the control to its untouched state.
26269   *
26270   * This method can be called to remove the `ng-touched` class and set the control to its
26271   * untouched state (`ng-untouched` class). Upon compilation, a model is set as untouched
26272   * by default, however this function can be used to restore that state if the model has
26273   * already been touched by the user.
26274   */
26275  this.$setUntouched = function() {
26276    ctrl.$touched = false;
26277    ctrl.$untouched = true;
26278    $animate.setClass($element, UNTOUCHED_CLASS, TOUCHED_CLASS);
26279  };
26280
26281  /**
26282   * @ngdoc method
26283   * @name ngModel.NgModelController#$setTouched
26284   *
26285   * @description
26286   * Sets the control to its touched state.
26287   *
26288   * This method can be called to remove the `ng-untouched` class and set the control to its
26289   * touched state (`ng-touched` class). A model is considered to be touched when the user has
26290   * first focused the control element and then shifted focus away from the control (blur event).
26291   */
26292  this.$setTouched = function() {
26293    ctrl.$touched = true;
26294    ctrl.$untouched = false;
26295    $animate.setClass($element, TOUCHED_CLASS, UNTOUCHED_CLASS);
26296  };
26297
26298  /**
26299   * @ngdoc method
26300   * @name ngModel.NgModelController#$rollbackViewValue
26301   *
26302   * @description
26303   * Cancel an update and reset the input element's value to prevent an update to the `$modelValue`,
26304   * which may be caused by a pending debounced event or because the input is waiting for a some
26305   * future event.
26306   *
26307   * If you have an input that uses `ng-model-options` to set up debounced updates or updates that
26308   * depend on special events such as blur, you can have a situation where there is a period when
26309   * the `$viewValue` is out of sync with the ngModel's `$modelValue`.
26310   *
26311   * In this case, you can use `$rollbackViewValue()` to manually cancel the debounced / future update
26312   * and reset the input to the last committed view value.
26313   *
26314   * It is also possible that you run into difficulties if you try to update the ngModel's `$modelValue`
26315   * programmatically before these debounced/future events have resolved/occurred, because Angular's
26316   * dirty checking mechanism is not able to tell whether the model has actually changed or not.
26317   *
26318   * The `$rollbackViewValue()` method should be called before programmatically changing the model of an
26319   * input which may have such events pending. This is important in order to make sure that the
26320   * input field will be updated with the new model value and any pending operations are cancelled.
26321   *
26322   * <example name="ng-model-cancel-update" module="cancel-update-example">
26323   *   <file name="app.js">
26324   *     angular.module('cancel-update-example', [])
26325   *
26326   *     .controller('CancelUpdateController', ['$scope', function($scope) {
26327   *       $scope.model = {};
26328   *
26329   *       $scope.setEmpty = function(e, value, rollback) {
26330   *         if (e.keyCode == 27) {
26331   *           e.preventDefault();
26332   *           if (rollback) {
26333   *             $scope.myForm[value].$rollbackViewValue();
26334   *           }
26335   *           $scope.model[value] = '';
26336   *         }
26337   *       };
26338   *     }]);
26339   *   </file>
26340   *   <file name="index.html">
26341   *     <div ng-controller="CancelUpdateController">
26342   *        <p>Both of these inputs are only updated if they are blurred. Hitting escape should
26343   *        empty them. Follow these steps and observe the difference:</p>
26344   *       <ol>
26345   *         <li>Type something in the input. You will see that the model is not yet updated</li>
26346   *         <li>Press the Escape key.
26347   *           <ol>
26348   *             <li> In the first example, nothing happens, because the model is already '', and no
26349   *             update is detected. If you blur the input, the model will be set to the current view.
26350   *             </li>
26351   *             <li> In the second example, the pending update is cancelled, and the input is set back
26352   *             to the last committed view value (''). Blurring the input does nothing.
26353   *             </li>
26354   *           </ol>
26355   *         </li>
26356   *       </ol>
26357   *
26358   *       <form name="myForm" ng-model-options="{ updateOn: 'blur' }">
26359   *         <div>
26360   *        <p id="inputDescription1">Without $rollbackViewValue():</p>
26361   *         <input name="value1" aria-describedby="inputDescription1" ng-model="model.value1"
26362   *                ng-keydown="setEmpty($event, 'value1')">
26363   *         value1: "{{ model.value1 }}"
26364   *         </div>
26365   *
26366   *         <div>
26367   *        <p id="inputDescription2">With $rollbackViewValue():</p>
26368   *         <input name="value2" aria-describedby="inputDescription2" ng-model="model.value2"
26369   *                ng-keydown="setEmpty($event, 'value2', true)">
26370   *         value2: "{{ model.value2 }}"
26371   *         </div>
26372   *       </form>
26373   *     </div>
26374   *   </file>
26375       <file name="style.css">
26376          div {
26377            display: table-cell;
26378          }
26379          div:nth-child(1) {
26380            padding-right: 30px;
26381          }
26382
26383        </file>
26384   * </example>
26385   */
26386  this.$rollbackViewValue = function() {
26387    $timeout.cancel(pendingDebounce);
26388    ctrl.$viewValue = ctrl.$$lastCommittedViewValue;
26389    ctrl.$render();
26390  };
26391
26392  /**
26393   * @ngdoc method
26394   * @name ngModel.NgModelController#$validate
26395   *
26396   * @description
26397   * Runs each of the registered validators (first synchronous validators and then
26398   * asynchronous validators).
26399   * If the validity changes to invalid, the model will be set to `undefined`,
26400   * unless {@link ngModelOptions `ngModelOptions.allowInvalid`} is `true`.
26401   * If the validity changes to valid, it will set the model to the last available valid
26402   * `$modelValue`, i.e. either the last parsed value or the last value set from the scope.
26403   */
26404  this.$validate = function() {
26405    // ignore $validate before model is initialized
26406    if (isNumber(ctrl.$modelValue) && isNaN(ctrl.$modelValue)) {
26407      return;
26408    }
26409
26410    var viewValue = ctrl.$$lastCommittedViewValue;
26411    // Note: we use the $$rawModelValue as $modelValue might have been
26412    // set to undefined during a view -> model update that found validation
26413    // errors. We can't parse the view here, since that could change
26414    // the model although neither viewValue nor the model on the scope changed
26415    var modelValue = ctrl.$$rawModelValue;
26416
26417    var prevValid = ctrl.$valid;
26418    var prevModelValue = ctrl.$modelValue;
26419
26420    var allowInvalid = ctrl.$options && ctrl.$options.allowInvalid;
26421
26422    ctrl.$$runValidators(modelValue, viewValue, function(allValid) {
26423      // If there was no change in validity, don't update the model
26424      // This prevents changing an invalid modelValue to undefined
26425      if (!allowInvalid && prevValid !== allValid) {
26426        // Note: Don't check ctrl.$valid here, as we could have
26427        // external validators (e.g. calculated on the server),
26428        // that just call $setValidity and need the model value
26429        // to calculate their validity.
26430        ctrl.$modelValue = allValid ? modelValue : undefined;
26431
26432        if (ctrl.$modelValue !== prevModelValue) {
26433          ctrl.$$writeModelToScope();
26434        }
26435      }
26436    });
26437
26438  };
26439
26440  this.$$runValidators = function(modelValue, viewValue, doneCallback) {
26441    currentValidationRunId++;
26442    var localValidationRunId = currentValidationRunId;
26443
26444    // check parser error
26445    if (!processParseErrors()) {
26446      validationDone(false);
26447      return;
26448    }
26449    if (!processSyncValidators()) {
26450      validationDone(false);
26451      return;
26452    }
26453    processAsyncValidators();
26454
26455    function processParseErrors() {
26456      var errorKey = ctrl.$$parserName || 'parse';
26457      if (isUndefined(parserValid)) {
26458        setValidity(errorKey, null);
26459      } else {
26460        if (!parserValid) {
26461          forEach(ctrl.$validators, function(v, name) {
26462            setValidity(name, null);
26463          });
26464          forEach(ctrl.$asyncValidators, function(v, name) {
26465            setValidity(name, null);
26466          });
26467        }
26468        // Set the parse error last, to prevent unsetting it, should a $validators key == parserName
26469        setValidity(errorKey, parserValid);
26470        return parserValid;
26471      }
26472      return true;
26473    }
26474
26475    function processSyncValidators() {
26476      var syncValidatorsValid = true;
26477      forEach(ctrl.$validators, function(validator, name) {
26478        var result = validator(modelValue, viewValue);
26479        syncValidatorsValid = syncValidatorsValid && result;
26480        setValidity(name, result);
26481      });
26482      if (!syncValidatorsValid) {
26483        forEach(ctrl.$asyncValidators, function(v, name) {
26484          setValidity(name, null);
26485        });
26486        return false;
26487      }
26488      return true;
26489    }
26490
26491    function processAsyncValidators() {
26492      var validatorPromises = [];
26493      var allValid = true;
26494      forEach(ctrl.$asyncValidators, function(validator, name) {
26495        var promise = validator(modelValue, viewValue);
26496        if (!isPromiseLike(promise)) {
26497          throw ngModelMinErr('nopromise',
26498            "Expected asynchronous validator to return a promise but got '{0}' instead.", promise);
26499        }
26500        setValidity(name, undefined);
26501        validatorPromises.push(promise.then(function() {
26502          setValidity(name, true);
26503        }, function() {
26504          allValid = false;
26505          setValidity(name, false);
26506        }));
26507      });
26508      if (!validatorPromises.length) {
26509        validationDone(true);
26510      } else {
26511        $q.all(validatorPromises).then(function() {
26512          validationDone(allValid);
26513        }, noop);
26514      }
26515    }
26516
26517    function setValidity(name, isValid) {
26518      if (localValidationRunId === currentValidationRunId) {
26519        ctrl.$setValidity(name, isValid);
26520      }
26521    }
26522
26523    function validationDone(allValid) {
26524      if (localValidationRunId === currentValidationRunId) {
26525
26526        doneCallback(allValid);
26527      }
26528    }
26529  };
26530
26531  /**
26532   * @ngdoc method
26533   * @name ngModel.NgModelController#$commitViewValue
26534   *
26535   * @description
26536   * Commit a pending update to the `$modelValue`.
26537   *
26538   * Updates may be pending by a debounced event or because the input is waiting for a some future
26539   * event defined in `ng-model-options`. this method is rarely needed as `NgModelController`
26540   * usually handles calling this in response to input events.
26541   */
26542  this.$commitViewValue = function() {
26543    var viewValue = ctrl.$viewValue;
26544
26545    $timeout.cancel(pendingDebounce);
26546
26547    // If the view value has not changed then we should just exit, except in the case where there is
26548    // a native validator on the element. In this case the validation state may have changed even though
26549    // the viewValue has stayed empty.
26550    if (ctrl.$$lastCommittedViewValue === viewValue && (viewValue !== '' || !ctrl.$$hasNativeValidators)) {
26551      return;
26552    }
26553    ctrl.$$updateEmptyClasses(viewValue);
26554    ctrl.$$lastCommittedViewValue = viewValue;
26555
26556    // change to dirty
26557    if (ctrl.$pristine) {
26558      this.$setDirty();
26559    }
26560    this.$$parseAndValidate();
26561  };
26562
26563  this.$$parseAndValidate = function() {
26564    var viewValue = ctrl.$$lastCommittedViewValue;
26565    var modelValue = viewValue;
26566    parserValid = isUndefined(modelValue) ? undefined : true;
26567
26568    if (parserValid) {
26569      for (var i = 0; i < ctrl.$parsers.length; i++) {
26570        modelValue = ctrl.$parsers[i](modelValue);
26571        if (isUndefined(modelValue)) {
26572          parserValid = false;
26573          break;
26574        }
26575      }
26576    }
26577    if (isNumber(ctrl.$modelValue) && isNaN(ctrl.$modelValue)) {
26578      // ctrl.$modelValue has not been touched yet...
26579      ctrl.$modelValue = ngModelGet($scope);
26580    }
26581    var prevModelValue = ctrl.$modelValue;
26582    var allowInvalid = ctrl.$options && ctrl.$options.allowInvalid;
26583    ctrl.$$rawModelValue = modelValue;
26584
26585    if (allowInvalid) {
26586      ctrl.$modelValue = modelValue;
26587      writeToModelIfNeeded();
26588    }
26589
26590    // Pass the $$lastCommittedViewValue here, because the cached viewValue might be out of date.
26591    // This can happen if e.g. $setViewValue is called from inside a parser
26592    ctrl.$$runValidators(modelValue, ctrl.$$lastCommittedViewValue, function(allValid) {
26593      if (!allowInvalid) {
26594        // Note: Don't check ctrl.$valid here, as we could have
26595        // external validators (e.g. calculated on the server),
26596        // that just call $setValidity and need the model value
26597        // to calculate their validity.
26598        ctrl.$modelValue = allValid ? modelValue : undefined;
26599        writeToModelIfNeeded();
26600      }
26601    });
26602
26603    function writeToModelIfNeeded() {
26604      if (ctrl.$modelValue !== prevModelValue) {
26605        ctrl.$$writeModelToScope();
26606      }
26607    }
26608  };
26609
26610  this.$$writeModelToScope = function() {
26611    ngModelSet($scope, ctrl.$modelValue);
26612    forEach(ctrl.$viewChangeListeners, function(listener) {
26613      try {
26614        listener();
26615      } catch (e) {
26616        $exceptionHandler(e);
26617      }
26618    });
26619  };
26620
26621  /**
26622   * @ngdoc method
26623   * @name ngModel.NgModelController#$setViewValue
26624   *
26625   * @description
26626   * Update the view value.
26627   *
26628   * This method should be called when a control wants to change the view value; typically,
26629   * this is done from within a DOM event handler. For example, the {@link ng.directive:input input}
26630   * directive calls it when the value of the input changes and {@link ng.directive:select select}
26631   * calls it when an option is selected.
26632   *
26633   * When `$setViewValue` is called, the new `value` will be staged for committing through the `$parsers`
26634   * and `$validators` pipelines. If there are no special {@link ngModelOptions} specified then the staged
26635   * value sent directly for processing, finally to be applied to `$modelValue` and then the
26636   * **expression** specified in the `ng-model` attribute. Lastly, all the registered change listeners,
26637   * in the `$viewChangeListeners` list, are called.
26638   *
26639   * In case the {@link ng.directive:ngModelOptions ngModelOptions} directive is used with `updateOn`
26640   * and the `default` trigger is not listed, all those actions will remain pending until one of the
26641   * `updateOn` events is triggered on the DOM element.
26642   * All these actions will be debounced if the {@link ng.directive:ngModelOptions ngModelOptions}
26643   * directive is used with a custom debounce for this particular event.
26644   * Note that a `$digest` is only triggered once the `updateOn` events are fired, or if `debounce`
26645   * is specified, once the timer runs out.
26646   *
26647   * When used with standard inputs, the view value will always be a string (which is in some cases
26648   * parsed into another type, such as a `Date` object for `input[date]`.)
26649   * However, custom controls might also pass objects to this method. In this case, we should make
26650   * a copy of the object before passing it to `$setViewValue`. This is because `ngModel` does not
26651   * perform a deep watch of objects, it only looks for a change of identity. If you only change
26652   * the property of the object then ngModel will not realize that the object has changed and
26653   * will not invoke the `$parsers` and `$validators` pipelines. For this reason, you should
26654   * not change properties of the copy once it has been passed to `$setViewValue`.
26655   * Otherwise you may cause the model value on the scope to change incorrectly.
26656   *
26657   * <div class="alert alert-info">
26658   * In any case, the value passed to the method should always reflect the current value
26659   * of the control. For example, if you are calling `$setViewValue` for an input element,
26660   * you should pass the input DOM value. Otherwise, the control and the scope model become
26661   * out of sync. It's also important to note that `$setViewValue` does not call `$render` or change
26662   * the control's DOM value in any way. If we want to change the control's DOM value
26663   * programmatically, we should update the `ngModel` scope expression. Its new value will be
26664   * picked up by the model controller, which will run it through the `$formatters`, `$render` it
26665   * to update the DOM, and finally call `$validate` on it.
26666   * </div>
26667   *
26668   * @param {*} value value from the view.
26669   * @param {string} trigger Event that triggered the update.
26670   */
26671  this.$setViewValue = function(value, trigger) {
26672    ctrl.$viewValue = value;
26673    if (!ctrl.$options || ctrl.$options.updateOnDefault) {
26674      ctrl.$$debounceViewValueCommit(trigger);
26675    }
26676  };
26677
26678  this.$$debounceViewValueCommit = function(trigger) {
26679    var debounceDelay = 0,
26680        options = ctrl.$options,
26681        debounce;
26682
26683    if (options && isDefined(options.debounce)) {
26684      debounce = options.debounce;
26685      if (isNumber(debounce)) {
26686        debounceDelay = debounce;
26687      } else if (isNumber(debounce[trigger])) {
26688        debounceDelay = debounce[trigger];
26689      } else if (isNumber(debounce['default'])) {
26690        debounceDelay = debounce['default'];
26691      }
26692    }
26693
26694    $timeout.cancel(pendingDebounce);
26695    if (debounceDelay) {
26696      pendingDebounce = $timeout(function() {
26697        ctrl.$commitViewValue();
26698      }, debounceDelay);
26699    } else if ($rootScope.$$phase) {
26700      ctrl.$commitViewValue();
26701    } else {
26702      $scope.$apply(function() {
26703        ctrl.$commitViewValue();
26704      });
26705    }
26706  };
26707
26708  // model -> value
26709  // Note: we cannot use a normal scope.$watch as we want to detect the following:
26710  // 1. scope value is 'a'
26711  // 2. user enters 'b'
26712  // 3. ng-change kicks in and reverts scope value to 'a'
26713  //    -> scope value did not change since the last digest as
26714  //       ng-change executes in apply phase
26715  // 4. view should be changed back to 'a'
26716  $scope.$watch(function ngModelWatch() {
26717    var modelValue = ngModelGet($scope);
26718
26719    // if scope model value and ngModel value are out of sync
26720    // TODO(perf): why not move this to the action fn?
26721    if (modelValue !== ctrl.$modelValue &&
26722       // checks for NaN is needed to allow setting the model to NaN when there's an asyncValidator
26723       (ctrl.$modelValue === ctrl.$modelValue || modelValue === modelValue)
26724    ) {
26725      ctrl.$modelValue = ctrl.$$rawModelValue = modelValue;
26726      parserValid = undefined;
26727
26728      var formatters = ctrl.$formatters,
26729          idx = formatters.length;
26730
26731      var viewValue = modelValue;
26732      while (idx--) {
26733        viewValue = formatters[idx](viewValue);
26734      }
26735      if (ctrl.$viewValue !== viewValue) {
26736        ctrl.$$updateEmptyClasses(viewValue);
26737        ctrl.$viewValue = ctrl.$$lastCommittedViewValue = viewValue;
26738        ctrl.$render();
26739
26740        ctrl.$$runValidators(modelValue, viewValue, noop);
26741      }
26742    }
26743
26744    return modelValue;
26745  });
26746}];
26747
26748
26749/**
26750 * @ngdoc directive
26751 * @name ngModel
26752 *
26753 * @element input
26754 * @priority 1
26755 *
26756 * @description
26757 * The `ngModel` directive binds an `input`,`select`, `textarea` (or custom form control) to a
26758 * property on the scope using {@link ngModel.NgModelController NgModelController},
26759 * which is created and exposed by this directive.
26760 *
26761 * `ngModel` is responsible for:
26762 *
26763 * - Binding the view into the model, which other directives such as `input`, `textarea` or `select`
26764 *   require.
26765 * - Providing validation behavior (i.e. required, number, email, url).
26766 * - Keeping the state of the control (valid/invalid, dirty/pristine, touched/untouched, validation errors).
26767 * - Setting related css classes on the element (`ng-valid`, `ng-invalid`, `ng-dirty`, `ng-pristine`, `ng-touched`,
26768 *   `ng-untouched`, `ng-empty`, `ng-not-empty`) including animations.
26769 * - Registering the control with its parent {@link ng.directive:form form}.
26770 *
26771 * Note: `ngModel` will try to bind to the property given by evaluating the expression on the
26772 * current scope. If the property doesn't already exist on this scope, it will be created
26773 * implicitly and added to the scope.
26774 *
26775 * For best practices on using `ngModel`, see:
26776 *
26777 *  - [Understanding Scopes](https://github.com/angular/angular.js/wiki/Understanding-Scopes)
26778 *
26779 * For basic examples, how to use `ngModel`, see:
26780 *
26781 *  - {@link ng.directive:input input}
26782 *    - {@link input[text] text}
26783 *    - {@link input[checkbox] checkbox}
26784 *    - {@link input[radio] radio}
26785 *    - {@link input[number] number}
26786 *    - {@link input[email] email}
26787 *    - {@link input[url] url}
26788 *    - {@link input[date] date}
26789 *    - {@link input[datetime-local] datetime-local}
26790 *    - {@link input[time] time}
26791 *    - {@link input[month] month}
26792 *    - {@link input[week] week}
26793 *  - {@link ng.directive:select select}
26794 *  - {@link ng.directive:textarea textarea}
26795 *
26796 * # Complex Models (objects or collections)
26797 *
26798 * By default, `ngModel` watches the model by reference, not value. This is important to know when
26799 * binding inputs to models that are objects (e.g. `Date`) or collections (e.g. arrays). If only properties of the
26800 * object or collection change, `ngModel` will not be notified and so the input will not be  re-rendered.
26801 *
26802 * The model must be assigned an entirely new object or collection before a re-rendering will occur.
26803 *
26804 * Some directives have options that will cause them to use a custom `$watchCollection` on the model expression
26805 * - for example, `ngOptions` will do so when a `track by` clause is included in the comprehension expression or
26806 * if the select is given the `multiple` attribute.
26807 *
26808 * The `$watchCollection()` method only does a shallow comparison, meaning that changing properties deeper than the
26809 * first level of the object (or only changing the properties of an item in the collection if it's an array) will still
26810 * not trigger a re-rendering of the model.
26811 *
26812 * # CSS classes
26813 * The following CSS classes are added and removed on the associated input/select/textarea element
26814 * depending on the validity of the model.
26815 *
26816 *  - `ng-valid`: the model is valid
26817 *  - `ng-invalid`: the model is invalid
26818 *  - `ng-valid-[key]`: for each valid key added by `$setValidity`
26819 *  - `ng-invalid-[key]`: for each invalid key added by `$setValidity`
26820 *  - `ng-pristine`: the control hasn't been interacted with yet
26821 *  - `ng-dirty`: the control has been interacted with
26822 *  - `ng-touched`: the control has been blurred
26823 *  - `ng-untouched`: the control hasn't been blurred
26824 *  - `ng-pending`: any `$asyncValidators` are unfulfilled
26825 *  - `ng-empty`: the view does not contain a value or the value is deemed "empty", as defined
26826 *     by the {@link ngModel.NgModelController#$isEmpty} method
26827 *  - `ng-not-empty`: the view contains a non-empty value
26828 *
26829 * Keep in mind that ngAnimate can detect each of these classes when added and removed.
26830 *
26831 * ## Animation Hooks
26832 *
26833 * Animations within models are triggered when any of the associated CSS classes are added and removed
26834 * on the input element which is attached to the model. These classes include: `.ng-pristine`, `.ng-dirty`,
26835 * `.ng-invalid` and `.ng-valid` as well as any other validations that are performed on the model itself.
26836 * The animations that are triggered within ngModel are similar to how they work in ngClass and
26837 * animations can be hooked into using CSS transitions, keyframes as well as JS animations.
26838 *
26839 * The following example shows a simple way to utilize CSS transitions to style an input element
26840 * that has been rendered as invalid after it has been validated:
26841 *
26842 * <pre>
26843 * //be sure to include ngAnimate as a module to hook into more
26844 * //advanced animations
26845 * .my-input {
26846 *   transition:0.5s linear all;
26847 *   background: white;
26848 * }
26849 * .my-input.ng-invalid {
26850 *   background: red;
26851 *   color:white;
26852 * }
26853 * </pre>
26854 *
26855 * @example
26856 * <example deps="angular-animate.js" animations="true" fixBase="true" module="inputExample">
26857     <file name="index.html">
26858       <script>
26859        angular.module('inputExample', [])
26860          .controller('ExampleController', ['$scope', function($scope) {
26861            $scope.val = '1';
26862          }]);
26863       </script>
26864       <style>
26865         .my-input {
26866           transition:all linear 0.5s;
26867           background: transparent;
26868         }
26869         .my-input.ng-invalid {
26870           color:white;
26871           background: red;
26872         }
26873       </style>
26874       <p id="inputDescription">
26875        Update input to see transitions when valid/invalid.
26876        Integer is a valid value.
26877       </p>
26878       <form name="testForm" ng-controller="ExampleController">
26879         <input ng-model="val" ng-pattern="/^\d+$/" name="anim" class="my-input"
26880                aria-describedby="inputDescription" />
26881       </form>
26882     </file>
26883 * </example>
26884 *
26885 * ## Binding to a getter/setter
26886 *
26887 * Sometimes it's helpful to bind `ngModel` to a getter/setter function.  A getter/setter is a
26888 * function that returns a representation of the model when called with zero arguments, and sets
26889 * the internal state of a model when called with an argument. It's sometimes useful to use this
26890 * for models that have an internal representation that's different from what the model exposes
26891 * to the view.
26892 *
26893 * <div class="alert alert-success">
26894 * **Best Practice:** It's best to keep getters fast because Angular is likely to call them more
26895 * frequently than other parts of your code.
26896 * </div>
26897 *
26898 * You use this behavior by adding `ng-model-options="{ getterSetter: true }"` to an element that
26899 * has `ng-model` attached to it. You can also add `ng-model-options="{ getterSetter: true }"` to
26900 * a `<form>`, which will enable this behavior for all `<input>`s within it. See
26901 * {@link ng.directive:ngModelOptions `ngModelOptions`} for more.
26902 *
26903 * The following example shows how to use `ngModel` with a getter/setter:
26904 *
26905 * @example
26906 * <example name="ngModel-getter-setter" module="getterSetterExample">
26907     <file name="index.html">
26908       <div ng-controller="ExampleController">
26909         <form name="userForm">
26910           <label>Name:
26911             <input type="text" name="userName"
26912                    ng-model="user.name"
26913                    ng-model-options="{ getterSetter: true }" />
26914           </label>
26915         </form>
26916         <pre>user.name = <span ng-bind="user.name()"></span></pre>
26917       </div>
26918     </file>
26919     <file name="app.js">
26920       angular.module('getterSetterExample', [])
26921         .controller('ExampleController', ['$scope', function($scope) {
26922           var _name = 'Brian';
26923           $scope.user = {
26924             name: function(newName) {
26925              // Note that newName can be undefined for two reasons:
26926              // 1. Because it is called as a getter and thus called with no arguments
26927              // 2. Because the property should actually be set to undefined. This happens e.g. if the
26928              //    input is invalid
26929              return arguments.length ? (_name = newName) : _name;
26930             }
26931           };
26932         }]);
26933     </file>
26934 * </example>
26935 */
26936var ngModelDirective = ['$rootScope', function($rootScope) {
26937  return {
26938    restrict: 'A',
26939    require: ['ngModel', '^?form', '^?ngModelOptions'],
26940    controller: NgModelController,
26941    // Prelink needs to run before any input directive
26942    // so that we can set the NgModelOptions in NgModelController
26943    // before anyone else uses it.
26944    priority: 1,
26945    compile: function ngModelCompile(element) {
26946      // Setup initial state of the control
26947      element.addClass(PRISTINE_CLASS).addClass(UNTOUCHED_CLASS).addClass(VALID_CLASS);
26948
26949      return {
26950        pre: function ngModelPreLink(scope, element, attr, ctrls) {
26951          var modelCtrl = ctrls[0],
26952              formCtrl = ctrls[1] || modelCtrl.$$parentForm;
26953
26954          modelCtrl.$$setOptions(ctrls[2] && ctrls[2].$options);
26955
26956          // notify others, especially parent forms
26957          formCtrl.$addControl(modelCtrl);
26958
26959          attr.$observe('name', function(newValue) {
26960            if (modelCtrl.$name !== newValue) {
26961              modelCtrl.$$parentForm.$$renameControl(modelCtrl, newValue);
26962            }
26963          });
26964
26965          scope.$on('$destroy', function() {
26966            modelCtrl.$$parentForm.$removeControl(modelCtrl);
26967          });
26968        },
26969        post: function ngModelPostLink(scope, element, attr, ctrls) {
26970          var modelCtrl = ctrls[0];
26971          if (modelCtrl.$options && modelCtrl.$options.updateOn) {
26972            element.on(modelCtrl.$options.updateOn, function(ev) {
26973              modelCtrl.$$debounceViewValueCommit(ev && ev.type);
26974            });
26975          }
26976
26977          element.on('blur', function() {
26978            if (modelCtrl.$touched) return;
26979
26980            if ($rootScope.$$phase) {
26981              scope.$evalAsync(modelCtrl.$setTouched);
26982            } else {
26983              scope.$apply(modelCtrl.$setTouched);
26984            }
26985          });
26986        }
26987      };
26988    }
26989  };
26990}];
26991
26992var DEFAULT_REGEXP = /(\s+|^)default(\s+|$)/;
26993
26994/**
26995 * @ngdoc directive
26996 * @name ngModelOptions
26997 *
26998 * @description
26999 * Allows tuning how model updates are done. Using `ngModelOptions` you can specify a custom list of
27000 * events that will trigger a model update and/or a debouncing delay so that the actual update only
27001 * takes place when a timer expires; this timer will be reset after another change takes place.
27002 *
27003 * Given the nature of `ngModelOptions`, the value displayed inside input fields in the view might
27004 * be different from the value in the actual model. This means that if you update the model you
27005 * should also invoke {@link ngModel.NgModelController `$rollbackViewValue`} on the relevant input field in
27006 * order to make sure it is synchronized with the model and that any debounced action is canceled.
27007 *
27008 * The easiest way to reference the control's {@link ngModel.NgModelController `$rollbackViewValue`}
27009 * method is by making sure the input is placed inside a form that has a `name` attribute. This is
27010 * important because `form` controllers are published to the related scope under the name in their
27011 * `name` attribute.
27012 *
27013 * Any pending changes will take place immediately when an enclosing form is submitted via the
27014 * `submit` event. Note that `ngClick` events will occur before the model is updated. Use `ngSubmit`
27015 * to have access to the updated model.
27016 *
27017 * `ngModelOptions` has an effect on the element it's declared on and its descendants.
27018 *
27019 * @param {Object} ngModelOptions options to apply to the current model. Valid keys are:
27020 *   - `updateOn`: string specifying which event should the input be bound to. You can set several
27021 *     events using an space delimited list. There is a special event called `default` that
27022 *     matches the default events belonging of the control.
27023 *   - `debounce`: integer value which contains the debounce model update value in milliseconds. A
27024 *     value of 0 triggers an immediate update. If an object is supplied instead, you can specify a
27025 *     custom value for each event. For example:
27026 *     `ng-model-options="{ updateOn: 'default blur', debounce: { 'default': 500, 'blur': 0 } }"`
27027 *   - `allowInvalid`: boolean value which indicates that the model can be set with values that did
27028 *     not validate correctly instead of the default behavior of setting the model to undefined.
27029 *   - `getterSetter`: boolean value which determines whether or not to treat functions bound to
27030       `ngModel` as getters/setters.
27031 *   - `timezone`: Defines the timezone to be used to read/write the `Date` instance in the model for
27032 *     `<input type="date">`, `<input type="time">`, ... . It understands UTC/GMT and the
27033 *     continental US time zone abbreviations, but for general use, use a time zone offset, for
27034 *     example, `'+0430'` (4 hours, 30 minutes east of the Greenwich meridian)
27035 *     If not specified, the timezone of the browser will be used.
27036 *
27037 * @example
27038
27039  The following example shows how to override immediate updates. Changes on the inputs within the
27040  form will update the model only when the control loses focus (blur event). If `escape` key is
27041  pressed while the input field is focused, the value is reset to the value in the current model.
27042
27043  <example name="ngModelOptions-directive-blur" module="optionsExample">
27044    <file name="index.html">
27045      <div ng-controller="ExampleController">
27046        <form name="userForm">
27047          <label>Name:
27048            <input type="text" name="userName"
27049                   ng-model="user.name"
27050                   ng-model-options="{ updateOn: 'blur' }"
27051                   ng-keyup="cancel($event)" />
27052          </label><br />
27053          <label>Other data:
27054            <input type="text" ng-model="user.data" />
27055          </label><br />
27056        </form>
27057        <pre>user.name = <span ng-bind="user.name"></span></pre>
27058        <pre>user.data = <span ng-bind="user.data"></span></pre>
27059      </div>
27060    </file>
27061    <file name="app.js">
27062      angular.module('optionsExample', [])
27063        .controller('ExampleController', ['$scope', function($scope) {
27064          $scope.user = { name: 'John', data: '' };
27065
27066          $scope.cancel = function(e) {
27067            if (e.keyCode == 27) {
27068              $scope.userForm.userName.$rollbackViewValue();
27069            }
27070          };
27071        }]);
27072    </file>
27073    <file name="protractor.js" type="protractor">
27074      var model = element(by.binding('user.name'));
27075      var input = element(by.model('user.name'));
27076      var other = element(by.model('user.data'));
27077
27078      it('should allow custom events', function() {
27079        input.sendKeys(' Doe');
27080        input.click();
27081        expect(model.getText()).toEqual('John');
27082        other.click();
27083        expect(model.getText()).toEqual('John Doe');
27084      });
27085
27086      it('should $rollbackViewValue when model changes', function() {
27087        input.sendKeys(' Doe');
27088        expect(input.getAttribute('value')).toEqual('John Doe');
27089        input.sendKeys(protractor.Key.ESCAPE);
27090        expect(input.getAttribute('value')).toEqual('John');
27091        other.click();
27092        expect(model.getText()).toEqual('John');
27093      });
27094    </file>
27095  </example>
27096
27097  This one shows how to debounce model changes. Model will be updated only 1 sec after last change.
27098  If the `Clear` button is pressed, any debounced action is canceled and the value becomes empty.
27099
27100  <example name="ngModelOptions-directive-debounce" module="optionsExample">
27101    <file name="index.html">
27102      <div ng-controller="ExampleController">
27103        <form name="userForm">
27104          <label>Name:
27105            <input type="text" name="userName"
27106                   ng-model="user.name"
27107                   ng-model-options="{ debounce: 1000 }" />
27108          </label>
27109          <button ng-click="userForm.userName.$rollbackViewValue(); user.name=''">Clear</button>
27110          <br />
27111        </form>
27112        <pre>user.name = <span ng-bind="user.name"></span></pre>
27113      </div>
27114    </file>
27115    <file name="app.js">
27116      angular.module('optionsExample', [])
27117        .controller('ExampleController', ['$scope', function($scope) {
27118          $scope.user = { name: 'Igor' };
27119        }]);
27120    </file>
27121  </example>
27122
27123  This one shows how to bind to getter/setters:
27124
27125  <example name="ngModelOptions-directive-getter-setter" module="getterSetterExample">
27126    <file name="index.html">
27127      <div ng-controller="ExampleController">
27128        <form name="userForm">
27129          <label>Name:
27130            <input type="text" name="userName"
27131                   ng-model="user.name"
27132                   ng-model-options="{ getterSetter: true }" />
27133          </label>
27134        </form>
27135        <pre>user.name = <span ng-bind="user.name()"></span></pre>
27136      </div>
27137    </file>
27138    <file name="app.js">
27139      angular.module('getterSetterExample', [])
27140        .controller('ExampleController', ['$scope', function($scope) {
27141          var _name = 'Brian';
27142          $scope.user = {
27143            name: function(newName) {
27144              // Note that newName can be undefined for two reasons:
27145              // 1. Because it is called as a getter and thus called with no arguments
27146              // 2. Because the property should actually be set to undefined. This happens e.g. if the
27147              //    input is invalid
27148              return arguments.length ? (_name = newName) : _name;
27149            }
27150          };
27151        }]);
27152    </file>
27153  </example>
27154 */
27155var ngModelOptionsDirective = function() {
27156  return {
27157    restrict: 'A',
27158    controller: ['$scope', '$attrs', function($scope, $attrs) {
27159      var that = this;
27160      this.$options = copy($scope.$eval($attrs.ngModelOptions));
27161      // Allow adding/overriding bound events
27162      if (isDefined(this.$options.updateOn)) {
27163        this.$options.updateOnDefault = false;
27164        // extract "default" pseudo-event from list of events that can trigger a model update
27165        this.$options.updateOn = trim(this.$options.updateOn.replace(DEFAULT_REGEXP, function() {
27166          that.$options.updateOnDefault = true;
27167          return ' ';
27168        }));
27169      } else {
27170        this.$options.updateOnDefault = true;
27171      }
27172    }]
27173  };
27174};
27175
27176
27177
27178// helper methods
27179function addSetValidityMethod(context) {
27180  var ctrl = context.ctrl,
27181      $element = context.$element,
27182      classCache = {},
27183      set = context.set,
27184      unset = context.unset,
27185      $animate = context.$animate;
27186
27187  classCache[INVALID_CLASS] = !(classCache[VALID_CLASS] = $element.hasClass(VALID_CLASS));
27188
27189  ctrl.$setValidity = setValidity;
27190
27191  function setValidity(validationErrorKey, state, controller) {
27192    if (isUndefined(state)) {
27193      createAndSet('$pending', validationErrorKey, controller);
27194    } else {
27195      unsetAndCleanup('$pending', validationErrorKey, controller);
27196    }
27197    if (!isBoolean(state)) {
27198      unset(ctrl.$error, validationErrorKey, controller);
27199      unset(ctrl.$$success, validationErrorKey, controller);
27200    } else {
27201      if (state) {
27202        unset(ctrl.$error, validationErrorKey, controller);
27203        set(ctrl.$$success, validationErrorKey, controller);
27204      } else {
27205        set(ctrl.$error, validationErrorKey, controller);
27206        unset(ctrl.$$success, validationErrorKey, controller);
27207      }
27208    }
27209    if (ctrl.$pending) {
27210      cachedToggleClass(PENDING_CLASS, true);
27211      ctrl.$valid = ctrl.$invalid = undefined;
27212      toggleValidationCss('', null);
27213    } else {
27214      cachedToggleClass(PENDING_CLASS, false);
27215      ctrl.$valid = isObjectEmpty(ctrl.$error);
27216      ctrl.$invalid = !ctrl.$valid;
27217      toggleValidationCss('', ctrl.$valid);
27218    }
27219
27220    // re-read the state as the set/unset methods could have
27221    // combined state in ctrl.$error[validationError] (used for forms),
27222    // where setting/unsetting only increments/decrements the value,
27223    // and does not replace it.
27224    var combinedState;
27225    if (ctrl.$pending && ctrl.$pending[validationErrorKey]) {
27226      combinedState = undefined;
27227    } else if (ctrl.$error[validationErrorKey]) {
27228      combinedState = false;
27229    } else if (ctrl.$$success[validationErrorKey]) {
27230      combinedState = true;
27231    } else {
27232      combinedState = null;
27233    }
27234
27235    toggleValidationCss(validationErrorKey, combinedState);
27236    ctrl.$$parentForm.$setValidity(validationErrorKey, combinedState, ctrl);
27237  }
27238
27239  function createAndSet(name, value, controller) {
27240    if (!ctrl[name]) {
27241      ctrl[name] = {};
27242    }
27243    set(ctrl[name], value, controller);
27244  }
27245
27246  function unsetAndCleanup(name, value, controller) {
27247    if (ctrl[name]) {
27248      unset(ctrl[name], value, controller);
27249    }
27250    if (isObjectEmpty(ctrl[name])) {
27251      ctrl[name] = undefined;
27252    }
27253  }
27254
27255  function cachedToggleClass(className, switchValue) {
27256    if (switchValue && !classCache[className]) {
27257      $animate.addClass($element, className);
27258      classCache[className] = true;
27259    } else if (!switchValue && classCache[className]) {
27260      $animate.removeClass($element, className);
27261      classCache[className] = false;
27262    }
27263  }
27264
27265  function toggleValidationCss(validationErrorKey, isValid) {
27266    validationErrorKey = validationErrorKey ? '-' + snake_case(validationErrorKey, '-') : '';
27267
27268    cachedToggleClass(VALID_CLASS + validationErrorKey, isValid === true);
27269    cachedToggleClass(INVALID_CLASS + validationErrorKey, isValid === false);
27270  }
27271}
27272
27273function isObjectEmpty(obj) {
27274  if (obj) {
27275    for (var prop in obj) {
27276      if (obj.hasOwnProperty(prop)) {
27277        return false;
27278      }
27279    }
27280  }
27281  return true;
27282}
27283
27284/**
27285 * @ngdoc directive
27286 * @name ngNonBindable
27287 * @restrict AC
27288 * @priority 1000
27289 *
27290 * @description
27291 * The `ngNonBindable` directive tells Angular not to compile or bind the contents of the current
27292 * DOM element. This is useful if the element contains what appears to be Angular directives and
27293 * bindings but which should be ignored by Angular. This could be the case if you have a site that
27294 * displays snippets of code, for instance.
27295 *
27296 * @element ANY
27297 *
27298 * @example
27299 * In this example there are two locations where a simple interpolation binding (`{{}}`) is present,
27300 * but the one wrapped in `ngNonBindable` is left alone.
27301 *
27302 * @example
27303    <example>
27304      <file name="index.html">
27305        <div>Normal: {{1 + 2}}</div>
27306        <div ng-non-bindable>Ignored: {{1 + 2}}</div>
27307      </file>
27308      <file name="protractor.js" type="protractor">
27309       it('should check ng-non-bindable', function() {
27310         expect(element(by.binding('1 + 2')).getText()).toContain('3');
27311         expect(element.all(by.css('div')).last().getText()).toMatch(/1 \+ 2/);
27312       });
27313      </file>
27314    </example>
27315 */
27316var ngNonBindableDirective = ngDirective({ terminal: true, priority: 1000 });
27317
27318/* global jqLiteRemove */
27319
27320var ngOptionsMinErr = minErr('ngOptions');
27321
27322/**
27323 * @ngdoc directive
27324 * @name ngOptions
27325 * @restrict A
27326 *
27327 * @description
27328 *
27329 * The `ngOptions` attribute can be used to dynamically generate a list of `<option>`
27330 * elements for the `<select>` element using the array or object obtained by evaluating the
27331 * `ngOptions` comprehension expression.
27332 *
27333 * In many cases, `ngRepeat` can be used on `<option>` elements instead of `ngOptions` to achieve a
27334 * similar result. However, `ngOptions` provides some benefits such as reducing memory and
27335 * increasing speed by not creating a new scope for each repeated instance, as well as providing
27336 * more flexibility in how the `<select>`'s model is assigned via the `select` **`as`** part of the
27337 * comprehension expression. `ngOptions` should be used when the `<select>` model needs to be bound
27338 *  to a non-string value. This is because an option element can only be bound to string values at
27339 * present.
27340 *
27341 * When an item in the `<select>` menu is selected, the array element or object property
27342 * represented by the selected option will be bound to the model identified by the `ngModel`
27343 * directive.
27344 *
27345 * Optionally, a single hard-coded `<option>` element, with the value set to an empty string, can
27346 * be nested into the `<select>` element. This element will then represent the `null` or "not selected"
27347 * option. See example below for demonstration.
27348 *
27349 * ## Complex Models (objects or collections)
27350 *
27351 * By default, `ngModel` watches the model by reference, not value. This is important to know when
27352 * binding the select to a model that is an object or a collection.
27353 *
27354 * One issue occurs if you want to preselect an option. For example, if you set
27355 * the model to an object that is equal to an object in your collection, `ngOptions` won't be able to set the selection,
27356 * because the objects are not identical. So by default, you should always reference the item in your collection
27357 * for preselections, e.g.: `$scope.selected = $scope.collection[3]`.
27358 *
27359 * Another solution is to use a `track by` clause, because then `ngOptions` will track the identity
27360 * of the item not by reference, but by the result of the `track by` expression. For example, if your
27361 * collection items have an id property, you would `track by item.id`.
27362 *
27363 * A different issue with objects or collections is that ngModel won't detect if an object property or
27364 * a collection item changes. For that reason, `ngOptions` additionally watches the model using
27365 * `$watchCollection`, when the expression contains a `track by` clause or the the select has the `multiple` attribute.
27366 * This allows ngOptions to trigger a re-rendering of the options even if the actual object/collection
27367 * has not changed identity, but only a property on the object or an item in the collection changes.
27368 *
27369 * Note that `$watchCollection` does a shallow comparison of the properties of the object (or the items in the collection
27370 * if the model is an array). This means that changing a property deeper than the first level inside the
27371 * object/collection will not trigger a re-rendering.
27372 *
27373 * ## `select` **`as`**
27374 *
27375 * Using `select` **`as`** will bind the result of the `select` expression to the model, but
27376 * the value of the `<select>` and `<option>` html elements will be either the index (for array data sources)
27377 * or property name (for object data sources) of the value within the collection. If a **`track by`** expression
27378 * is used, the result of that expression will be set as the value of the `option` and `select` elements.
27379 *
27380 *
27381 * ### `select` **`as`** and **`track by`**
27382 *
27383 * <div class="alert alert-warning">
27384 * Be careful when using `select` **`as`** and **`track by`** in the same expression.
27385 * </div>
27386 *
27387 * Given this array of items on the $scope:
27388 *
27389 * ```js
27390 * $scope.items = [{
27391 *   id: 1,
27392 *   label: 'aLabel',
27393 *   subItem: { name: 'aSubItem' }
27394 * }, {
27395 *   id: 2,
27396 *   label: 'bLabel',
27397 *   subItem: { name: 'bSubItem' }
27398 * }];
27399 * ```
27400 *
27401 * This will work:
27402 *
27403 * ```html
27404 * <select ng-options="item as item.label for item in items track by item.id" ng-model="selected"></select>
27405 * ```
27406 * ```js
27407 * $scope.selected = $scope.items[0];
27408 * ```
27409 *
27410 * but this will not work:
27411 *
27412 * ```html
27413 * <select ng-options="item.subItem as item.label for item in items track by item.id" ng-model="selected"></select>
27414 * ```
27415 * ```js
27416 * $scope.selected = $scope.items[0].subItem;
27417 * ```
27418 *
27419 * In both examples, the **`track by`** expression is applied successfully to each `item` in the
27420 * `items` array. Because the selected option has been set programmatically in the controller, the
27421 * **`track by`** expression is also applied to the `ngModel` value. In the first example, the
27422 * `ngModel` value is `items[0]` and the **`track by`** expression evaluates to `items[0].id` with
27423 * no issue. In the second example, the `ngModel` value is `items[0].subItem` and the **`track by`**
27424 * expression evaluates to `items[0].subItem.id` (which is undefined). As a result, the model value
27425 * is not matched against any `<option>` and the `<select>` appears as having no selected value.
27426 *
27427 *
27428 * @param {string} ngModel Assignable angular expression to data-bind to.
27429 * @param {string=} name Property name of the form under which the control is published.
27430 * @param {string=} required The control is considered valid only if value is entered.
27431 * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
27432 *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of
27433 *    `required` when you want to data-bind to the `required` attribute.
27434 * @param {comprehension_expression=} ngOptions in one of the following forms:
27435 *
27436 *   * for array data sources:
27437 *     * `label` **`for`** `value` **`in`** `array`
27438 *     * `select` **`as`** `label` **`for`** `value` **`in`** `array`
27439 *     * `label` **`group by`** `group` **`for`** `value` **`in`** `array`
27440 *     * `label` **`disable when`** `disable` **`for`** `value` **`in`** `array`
27441 *     * `label` **`group by`** `group` **`for`** `value` **`in`** `array` **`track by`** `trackexpr`
27442 *     * `label` **`disable when`** `disable` **`for`** `value` **`in`** `array` **`track by`** `trackexpr`
27443 *     * `label` **`for`** `value` **`in`** `array` | orderBy:`orderexpr` **`track by`** `trackexpr`
27444 *        (for including a filter with `track by`)
27445 *   * for object data sources:
27446 *     * `label` **`for (`**`key` **`,`** `value`**`) in`** `object`
27447 *     * `select` **`as`** `label` **`for (`**`key` **`,`** `value`**`) in`** `object`
27448 *     * `label` **`group by`** `group` **`for (`**`key`**`,`** `value`**`) in`** `object`
27449 *     * `label` **`disable when`** `disable` **`for (`**`key`**`,`** `value`**`) in`** `object`
27450 *     * `select` **`as`** `label` **`group by`** `group`
27451 *         **`for` `(`**`key`**`,`** `value`**`) in`** `object`
27452 *     * `select` **`as`** `label` **`disable when`** `disable`
27453 *         **`for` `(`**`key`**`,`** `value`**`) in`** `object`
27454 *
27455 * Where:
27456 *
27457 *   * `array` / `object`: an expression which evaluates to an array / object to iterate over.
27458 *   * `value`: local variable which will refer to each item in the `array` or each property value
27459 *      of `object` during iteration.
27460 *   * `key`: local variable which will refer to a property name in `object` during iteration.
27461 *   * `label`: The result of this expression will be the label for `<option>` element. The
27462 *     `expression` will most likely refer to the `value` variable (e.g. `value.propertyName`).
27463 *   * `select`: The result of this expression will be bound to the model of the parent `<select>`
27464 *      element. If not specified, `select` expression will default to `value`.
27465 *   * `group`: The result of this expression will be used to group options using the `<optgroup>`
27466 *      DOM element.
27467 *   * `disable`: The result of this expression will be used to disable the rendered `<option>`
27468 *      element. Return `true` to disable.
27469 *   * `trackexpr`: Used when working with an array of objects. The result of this expression will be
27470 *      used to identify the objects in the array. The `trackexpr` will most likely refer to the
27471 *     `value` variable (e.g. `value.propertyName`). With this the selection is preserved
27472 *      even when the options are recreated (e.g. reloaded from the server).
27473 *
27474 * @example
27475    <example module="selectExample">
27476      <file name="index.html">
27477        <script>
27478        angular.module('selectExample', [])
27479          .controller('ExampleController', ['$scope', function($scope) {
27480            $scope.colors = [
27481              {name:'black', shade:'dark'},
27482              {name:'white', shade:'light', notAnOption: true},
27483              {name:'red', shade:'dark'},
27484              {name:'blue', shade:'dark', notAnOption: true},
27485              {name:'yellow', shade:'light', notAnOption: false}
27486            ];
27487            $scope.myColor = $scope.colors[2]; // red
27488          }]);
27489        </script>
27490        <div ng-controller="ExampleController">
27491          <ul>
27492            <li ng-repeat="color in colors">
27493              <label>Name: <input ng-model="color.name"></label>
27494              <label><input type="checkbox" ng-model="color.notAnOption"> Disabled?</label>
27495              <button ng-click="colors.splice($index, 1)" aria-label="Remove">X</button>
27496            </li>
27497            <li>
27498              <button ng-click="colors.push({})">add</button>
27499            </li>
27500          </ul>
27501          <hr/>
27502          <label>Color (null not allowed):
27503            <select ng-model="myColor" ng-options="color.name for color in colors"></select>
27504          </label><br/>
27505          <label>Color (null allowed):
27506          <span  class="nullable">
27507            <select ng-model="myColor" ng-options="color.name for color in colors">
27508              <option value="">-- choose color --</option>
27509            </select>
27510          </span></label><br/>
27511
27512          <label>Color grouped by shade:
27513            <select ng-model="myColor" ng-options="color.name group by color.shade for color in colors">
27514            </select>
27515          </label><br/>
27516
27517          <label>Color grouped by shade, with some disabled:
27518            <select ng-model="myColor"
27519                  ng-options="color.name group by color.shade disable when color.notAnOption for color in colors">
27520            </select>
27521          </label><br/>
27522
27523
27524
27525          Select <button ng-click="myColor = { name:'not in list', shade: 'other' }">bogus</button>.
27526          <br/>
27527          <hr/>
27528          Currently selected: {{ {selected_color:myColor} }}
27529          <div style="border:solid 1px black; height:20px"
27530               ng-style="{'background-color':myColor.name}">
27531          </div>
27532        </div>
27533      </file>
27534      <file name="protractor.js" type="protractor">
27535         it('should check ng-options', function() {
27536           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('red');
27537           element.all(by.model('myColor')).first().click();
27538           element.all(by.css('select[ng-model="myColor"] option')).first().click();
27539           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('black');
27540           element(by.css('.nullable select[ng-model="myColor"]')).click();
27541           element.all(by.css('.nullable select[ng-model="myColor"] option')).first().click();
27542           expect(element(by.binding('{selected_color:myColor}')).getText()).toMatch('null');
27543         });
27544      </file>
27545    </example>
27546 */
27547
27548// jshint maxlen: false
27549//                     //00001111111111000000000002222222222000000000000000000000333333333300000000000000000000000004444444444400000000000005555555555555550000000006666666666666660000000777777777777777000000000000000888888888800000000000000000009999999999
27550var NG_OPTIONS_REGEXP = /^\s*([\s\S]+?)(?:\s+as\s+([\s\S]+?))?(?:\s+group\s+by\s+([\s\S]+?))?(?:\s+disable\s+when\s+([\s\S]+?))?\s+for\s+(?:([\$\w][\$\w]*)|(?:\(\s*([\$\w][\$\w]*)\s*,\s*([\$\w][\$\w]*)\s*\)))\s+in\s+([\s\S]+?)(?:\s+track\s+by\s+([\s\S]+?))?$/;
27551                        // 1: value expression (valueFn)
27552                        // 2: label expression (displayFn)
27553                        // 3: group by expression (groupByFn)
27554                        // 4: disable when expression (disableWhenFn)
27555                        // 5: array item variable name
27556                        // 6: object item key variable name
27557                        // 7: object item value variable name
27558                        // 8: collection expression
27559                        // 9: track by expression
27560// jshint maxlen: 100
27561
27562
27563var ngOptionsDirective = ['$compile', '$parse', function($compile, $parse) {
27564
27565  function parseOptionsExpression(optionsExp, selectElement, scope) {
27566
27567    var match = optionsExp.match(NG_OPTIONS_REGEXP);
27568    if (!(match)) {
27569      throw ngOptionsMinErr('iexp',
27570        "Expected expression in form of " +
27571        "'_select_ (as _label_)? for (_key_,)?_value_ in _collection_'" +
27572        " but got '{0}'. Element: {1}",
27573        optionsExp, startingTag(selectElement));
27574    }
27575
27576    // Extract the parts from the ngOptions expression
27577
27578    // The variable name for the value of the item in the collection
27579    var valueName = match[5] || match[7];
27580    // The variable name for the key of the item in the collection
27581    var keyName = match[6];
27582
27583    // An expression that generates the viewValue for an option if there is a label expression
27584    var selectAs = / as /.test(match[0]) && match[1];
27585    // An expression that is used to track the id of each object in the options collection
27586    var trackBy = match[9];
27587    // An expression that generates the viewValue for an option if there is no label expression
27588    var valueFn = $parse(match[2] ? match[1] : valueName);
27589    var selectAsFn = selectAs && $parse(selectAs);
27590    var viewValueFn = selectAsFn || valueFn;
27591    var trackByFn = trackBy && $parse(trackBy);
27592
27593    // Get the value by which we are going to track the option
27594    // if we have a trackFn then use that (passing scope and locals)
27595    // otherwise just hash the given viewValue
27596    var getTrackByValueFn = trackBy ?
27597                              function(value, locals) { return trackByFn(scope, locals); } :
27598                              function getHashOfValue(value) { return hashKey(value); };
27599    var getTrackByValue = function(value, key) {
27600      return getTrackByValueFn(value, getLocals(value, key));
27601    };
27602
27603    var displayFn = $parse(match[2] || match[1]);
27604    var groupByFn = $parse(match[3] || '');
27605    var disableWhenFn = $parse(match[4] || '');
27606    var valuesFn = $parse(match[8]);
27607
27608    var locals = {};
27609    var getLocals = keyName ? function(value, key) {
27610      locals[keyName] = key;
27611      locals[valueName] = value;
27612      return locals;
27613    } : function(value) {
27614      locals[valueName] = value;
27615      return locals;
27616    };
27617
27618
27619    function Option(selectValue, viewValue, label, group, disabled) {
27620      this.selectValue = selectValue;
27621      this.viewValue = viewValue;
27622      this.label = label;
27623      this.group = group;
27624      this.disabled = disabled;
27625    }
27626
27627    function getOptionValuesKeys(optionValues) {
27628      var optionValuesKeys;
27629
27630      if (!keyName && isArrayLike(optionValues)) {
27631        optionValuesKeys = optionValues;
27632      } else {
27633        // if object, extract keys, in enumeration order, unsorted
27634        optionValuesKeys = [];
27635        for (var itemKey in optionValues) {
27636          if (optionValues.hasOwnProperty(itemKey) && itemKey.charAt(0) !== '$') {
27637            optionValuesKeys.push(itemKey);
27638          }
27639        }
27640      }
27641      return optionValuesKeys;
27642    }
27643
27644    return {
27645      trackBy: trackBy,
27646      getTrackByValue: getTrackByValue,
27647      getWatchables: $parse(valuesFn, function(optionValues) {
27648        // Create a collection of things that we would like to watch (watchedArray)
27649        // so that they can all be watched using a single $watchCollection
27650        // that only runs the handler once if anything changes
27651        var watchedArray = [];
27652        optionValues = optionValues || [];
27653
27654        var optionValuesKeys = getOptionValuesKeys(optionValues);
27655        var optionValuesLength = optionValuesKeys.length;
27656        for (var index = 0; index < optionValuesLength; index++) {
27657          var key = (optionValues === optionValuesKeys) ? index : optionValuesKeys[index];
27658          var value = optionValues[key];
27659
27660          var locals = getLocals(value, key);
27661          var selectValue = getTrackByValueFn(value, locals);
27662          watchedArray.push(selectValue);
27663
27664          // Only need to watch the displayFn if there is a specific label expression
27665          if (match[2] || match[1]) {
27666            var label = displayFn(scope, locals);
27667            watchedArray.push(label);
27668          }
27669
27670          // Only need to watch the disableWhenFn if there is a specific disable expression
27671          if (match[4]) {
27672            var disableWhen = disableWhenFn(scope, locals);
27673            watchedArray.push(disableWhen);
27674          }
27675        }
27676        return watchedArray;
27677      }),
27678
27679      getOptions: function() {
27680
27681        var optionItems = [];
27682        var selectValueMap = {};
27683
27684        // The option values were already computed in the `getWatchables` fn,
27685        // which must have been called to trigger `getOptions`
27686        var optionValues = valuesFn(scope) || [];
27687        var optionValuesKeys = getOptionValuesKeys(optionValues);
27688        var optionValuesLength = optionValuesKeys.length;
27689
27690        for (var index = 0; index < optionValuesLength; index++) {
27691          var key = (optionValues === optionValuesKeys) ? index : optionValuesKeys[index];
27692          var value = optionValues[key];
27693          var locals = getLocals(value, key);
27694          var viewValue = viewValueFn(scope, locals);
27695          var selectValue = getTrackByValueFn(viewValue, locals);
27696          var label = displayFn(scope, locals);
27697          var group = groupByFn(scope, locals);
27698          var disabled = disableWhenFn(scope, locals);
27699          var optionItem = new Option(selectValue, viewValue, label, group, disabled);
27700
27701          optionItems.push(optionItem);
27702          selectValueMap[selectValue] = optionItem;
27703        }
27704
27705        return {
27706          items: optionItems,
27707          selectValueMap: selectValueMap,
27708          getOptionFromViewValue: function(value) {
27709            return selectValueMap[getTrackByValue(value)];
27710          },
27711          getViewValueFromOption: function(option) {
27712            // If the viewValue could be an object that may be mutated by the application,
27713            // we need to make a copy and not return the reference to the value on the option.
27714            return trackBy ? angular.copy(option.viewValue) : option.viewValue;
27715          }
27716        };
27717      }
27718    };
27719  }
27720
27721
27722  // we can't just jqLite('<option>') since jqLite is not smart enough
27723  // to create it in <select> and IE barfs otherwise.
27724  var optionTemplate = document.createElement('option'),
27725      optGroupTemplate = document.createElement('optgroup');
27726
27727    function ngOptionsPostLink(scope, selectElement, attr, ctrls) {
27728
27729      var selectCtrl = ctrls[0];
27730      var ngModelCtrl = ctrls[1];
27731      var multiple = attr.multiple;
27732
27733      // The emptyOption allows the application developer to provide their own custom "empty"
27734      // option when the viewValue does not match any of the option values.
27735      var emptyOption;
27736      for (var i = 0, children = selectElement.children(), ii = children.length; i < ii; i++) {
27737        if (children[i].value === '') {
27738          emptyOption = children.eq(i);
27739          break;
27740        }
27741      }
27742
27743      var providedEmptyOption = !!emptyOption;
27744
27745      var unknownOption = jqLite(optionTemplate.cloneNode(false));
27746      unknownOption.val('?');
27747
27748      var options;
27749      var ngOptions = parseOptionsExpression(attr.ngOptions, selectElement, scope);
27750
27751
27752      var renderEmptyOption = function() {
27753        if (!providedEmptyOption) {
27754          selectElement.prepend(emptyOption);
27755        }
27756        selectElement.val('');
27757        emptyOption.prop('selected', true); // needed for IE
27758        emptyOption.attr('selected', true);
27759      };
27760
27761      var removeEmptyOption = function() {
27762        if (!providedEmptyOption) {
27763          emptyOption.remove();
27764        }
27765      };
27766
27767
27768      var renderUnknownOption = function() {
27769        selectElement.prepend(unknownOption);
27770        selectElement.val('?');
27771        unknownOption.prop('selected', true); // needed for IE
27772        unknownOption.attr('selected', true);
27773      };
27774
27775      var removeUnknownOption = function() {
27776        unknownOption.remove();
27777      };
27778
27779      // Update the controller methods for multiple selectable options
27780      if (!multiple) {
27781
27782        selectCtrl.writeValue = function writeNgOptionsValue(value) {
27783          var option = options.getOptionFromViewValue(value);
27784
27785          if (option && !option.disabled) {
27786            // Don't update the option when it is already selected.
27787            // For example, the browser will select the first option by default. In that case,
27788            // most properties are set automatically - except the `selected` attribute, which we
27789            // set always
27790
27791            if (selectElement[0].value !== option.selectValue) {
27792              removeUnknownOption();
27793              removeEmptyOption();
27794
27795              selectElement[0].value = option.selectValue;
27796              option.element.selected = true;
27797            }
27798
27799            option.element.setAttribute('selected', 'selected');
27800          } else {
27801            if (value === null || providedEmptyOption) {
27802              removeUnknownOption();
27803              renderEmptyOption();
27804            } else {
27805              removeEmptyOption();
27806              renderUnknownOption();
27807            }
27808          }
27809        };
27810
27811        selectCtrl.readValue = function readNgOptionsValue() {
27812
27813          var selectedOption = options.selectValueMap[selectElement.val()];
27814
27815          if (selectedOption && !selectedOption.disabled) {
27816            removeEmptyOption();
27817            removeUnknownOption();
27818            return options.getViewValueFromOption(selectedOption);
27819          }
27820          return null;
27821        };
27822
27823        // If we are using `track by` then we must watch the tracked value on the model
27824        // since ngModel only watches for object identity change
27825        if (ngOptions.trackBy) {
27826          scope.$watch(
27827            function() { return ngOptions.getTrackByValue(ngModelCtrl.$viewValue); },
27828            function() { ngModelCtrl.$render(); }
27829          );
27830        }
27831
27832      } else {
27833
27834        ngModelCtrl.$isEmpty = function(value) {
27835          return !value || value.length === 0;
27836        };
27837
27838
27839        selectCtrl.writeValue = function writeNgOptionsMultiple(value) {
27840          options.items.forEach(function(option) {
27841            option.element.selected = false;
27842          });
27843
27844          if (value) {
27845            value.forEach(function(item) {
27846              var option = options.getOptionFromViewValue(item);
27847              if (option && !option.disabled) option.element.selected = true;
27848            });
27849          }
27850        };
27851
27852
27853        selectCtrl.readValue = function readNgOptionsMultiple() {
27854          var selectedValues = selectElement.val() || [],
27855              selections = [];
27856
27857          forEach(selectedValues, function(value) {
27858            var option = options.selectValueMap[value];
27859            if (option && !option.disabled) selections.push(options.getViewValueFromOption(option));
27860          });
27861
27862          return selections;
27863        };
27864
27865        // If we are using `track by` then we must watch these tracked values on the model
27866        // since ngModel only watches for object identity change
27867        if (ngOptions.trackBy) {
27868
27869          scope.$watchCollection(function() {
27870            if (isArray(ngModelCtrl.$viewValue)) {
27871              return ngModelCtrl.$viewValue.map(function(value) {
27872                return ngOptions.getTrackByValue(value);
27873              });
27874            }
27875          }, function() {
27876            ngModelCtrl.$render();
27877          });
27878
27879        }
27880      }
27881
27882
27883      if (providedEmptyOption) {
27884
27885        // we need to remove it before calling selectElement.empty() because otherwise IE will
27886        // remove the label from the element. wtf?
27887        emptyOption.remove();
27888
27889        // compile the element since there might be bindings in it
27890        $compile(emptyOption)(scope);
27891
27892        // remove the class, which is added automatically because we recompile the element and it
27893        // becomes the compilation root
27894        emptyOption.removeClass('ng-scope');
27895      } else {
27896        emptyOption = jqLite(optionTemplate.cloneNode(false));
27897      }
27898
27899      // We need to do this here to ensure that the options object is defined
27900      // when we first hit it in writeNgOptionsValue
27901      updateOptions();
27902
27903      // We will re-render the option elements if the option values or labels change
27904      scope.$watchCollection(ngOptions.getWatchables, updateOptions);
27905
27906      // ------------------------------------------------------------------ //
27907
27908
27909      function updateOptionElement(option, element) {
27910        option.element = element;
27911        element.disabled = option.disabled;
27912        // NOTE: The label must be set before the value, otherwise IE10/11/EDGE create unresponsive
27913        // selects in certain circumstances when multiple selects are next to each other and display
27914        // the option list in listbox style, i.e. the select is [multiple], or specifies a [size].
27915        // See https://github.com/angular/angular.js/issues/11314 for more info.
27916        // This is unfortunately untestable with unit / e2e tests
27917        if (option.label !== element.label) {
27918          element.label = option.label;
27919          element.textContent = option.label;
27920        }
27921        if (option.value !== element.value) element.value = option.selectValue;
27922      }
27923
27924      function addOrReuseElement(parent, current, type, templateElement) {
27925        var element;
27926        // Check whether we can reuse the next element
27927        if (current && lowercase(current.nodeName) === type) {
27928          // The next element is the right type so reuse it
27929          element = current;
27930        } else {
27931          // The next element is not the right type so create a new one
27932          element = templateElement.cloneNode(false);
27933          if (!current) {
27934            // There are no more elements so just append it to the select
27935            parent.appendChild(element);
27936          } else {
27937            // The next element is not a group so insert the new one
27938            parent.insertBefore(element, current);
27939          }
27940        }
27941        return element;
27942      }
27943
27944
27945      function removeExcessElements(current) {
27946        var next;
27947        while (current) {
27948          next = current.nextSibling;
27949          jqLiteRemove(current);
27950          current = next;
27951        }
27952      }
27953
27954
27955      function skipEmptyAndUnknownOptions(current) {
27956        var emptyOption_ = emptyOption && emptyOption[0];
27957        var unknownOption_ = unknownOption && unknownOption[0];
27958
27959        // We cannot rely on the extracted empty option being the same as the compiled empty option,
27960        // because the compiled empty option might have been replaced by a comment because
27961        // it had an "element" transclusion directive on it (such as ngIf)
27962        if (emptyOption_ || unknownOption_) {
27963          while (current &&
27964                (current === emptyOption_ ||
27965                current === unknownOption_ ||
27966                current.nodeType === NODE_TYPE_COMMENT ||
27967                (nodeName_(current) === 'option' && current.value === ''))) {
27968            current = current.nextSibling;
27969          }
27970        }
27971        return current;
27972      }
27973
27974
27975      function updateOptions() {
27976
27977        var previousValue = options && selectCtrl.readValue();
27978
27979        options = ngOptions.getOptions();
27980
27981        var groupMap = {};
27982        var currentElement = selectElement[0].firstChild;
27983
27984        // Ensure that the empty option is always there if it was explicitly provided
27985        if (providedEmptyOption) {
27986          selectElement.prepend(emptyOption);
27987        }
27988
27989        currentElement = skipEmptyAndUnknownOptions(currentElement);
27990
27991        options.items.forEach(function updateOption(option) {
27992          var group;
27993          var groupElement;
27994          var optionElement;
27995
27996          if (isDefined(option.group)) {
27997
27998            // This option is to live in a group
27999            // See if we have already created this group
28000            group = groupMap[option.group];
28001
28002            if (!group) {
28003
28004              // We have not already created this group
28005              groupElement = addOrReuseElement(selectElement[0],
28006                                               currentElement,
28007                                               'optgroup',
28008                                               optGroupTemplate);
28009              // Move to the next element
28010              currentElement = groupElement.nextSibling;
28011
28012              // Update the label on the group element
28013              groupElement.label = option.group;
28014
28015              // Store it for use later
28016              group = groupMap[option.group] = {
28017                groupElement: groupElement,
28018                currentOptionElement: groupElement.firstChild
28019              };
28020
28021            }
28022
28023            // So now we have a group for this option we add the option to the group
28024            optionElement = addOrReuseElement(group.groupElement,
28025                                              group.currentOptionElement,
28026                                              'option',
28027                                              optionTemplate);
28028            updateOptionElement(option, optionElement);
28029            // Move to the next element
28030            group.currentOptionElement = optionElement.nextSibling;
28031
28032          } else {
28033
28034            // This option is not in a group
28035            optionElement = addOrReuseElement(selectElement[0],
28036                                              currentElement,
28037                                              'option',
28038                                              optionTemplate);
28039            updateOptionElement(option, optionElement);
28040            // Move to the next element
28041            currentElement = optionElement.nextSibling;
28042          }
28043        });
28044
28045
28046        // Now remove all excess options and group
28047        Object.keys(groupMap).forEach(function(key) {
28048          removeExcessElements(groupMap[key].currentOptionElement);
28049        });
28050        removeExcessElements(currentElement);
28051
28052        ngModelCtrl.$render();
28053
28054        // Check to see if the value has changed due to the update to the options
28055        if (!ngModelCtrl.$isEmpty(previousValue)) {
28056          var nextValue = selectCtrl.readValue();
28057          var isNotPrimitive = ngOptions.trackBy || multiple;
28058          if (isNotPrimitive ? !equals(previousValue, nextValue) : previousValue !== nextValue) {
28059            ngModelCtrl.$setViewValue(nextValue);
28060            ngModelCtrl.$render();
28061          }
28062        }
28063
28064      }
28065  }
28066
28067  return {
28068    restrict: 'A',
28069    terminal: true,
28070    require: ['select', 'ngModel'],
28071    link: {
28072      pre: function ngOptionsPreLink(scope, selectElement, attr, ctrls) {
28073        // Deactivate the SelectController.register method to prevent
28074        // option directives from accidentally registering themselves
28075        // (and unwanted $destroy handlers etc.)
28076        ctrls[0].registerOption = noop;
28077      },
28078      post: ngOptionsPostLink
28079    }
28080  };
28081}];
28082
28083/**
28084 * @ngdoc directive
28085 * @name ngPluralize
28086 * @restrict EA
28087 *
28088 * @description
28089 * `ngPluralize` is a directive that displays messages according to en-US localization rules.
28090 * These rules are bundled with angular.js, but can be overridden
28091 * (see {@link guide/i18n Angular i18n} dev guide). You configure ngPluralize directive
28092 * by specifying the mappings between
28093 * [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)
28094 * and the strings to be displayed.
28095 *
28096 * # Plural categories and explicit number rules
28097 * There are two
28098 * [plural categories](http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html)
28099 * in Angular's default en-US locale: "one" and "other".
28100 *
28101 * While a plural category may match many numbers (for example, in en-US locale, "other" can match
28102 * any number that is not 1), an explicit number rule can only match one number. For example, the
28103 * explicit number rule for "3" matches the number 3. There are examples of plural categories
28104 * and explicit number rules throughout the rest of this documentation.
28105 *
28106 * # Configuring ngPluralize
28107 * You configure ngPluralize by providing 2 attributes: `count` and `when`.
28108 * You can also provide an optional attribute, `offset`.
28109 *
28110 * The value of the `count` attribute can be either a string or an {@link guide/expression
28111 * Angular expression}; these are evaluated on the current scope for its bound value.
28112 *
28113 * The `when` attribute specifies the mappings between plural categories and the actual
28114 * string to be displayed. The value of the attribute should be a JSON object.
28115 *
28116 * The following example shows how to configure ngPluralize:
28117 *
28118 * ```html
28119 * <ng-pluralize count="personCount"
28120                 when="{'0': 'Nobody is viewing.',
28121 *                      'one': '1 person is viewing.',
28122 *                      'other': '{} people are viewing.'}">
28123 * </ng-pluralize>
28124 *```
28125 *
28126 * In the example, `"0: Nobody is viewing."` is an explicit number rule. If you did not
28127 * specify this rule, 0 would be matched to the "other" category and "0 people are viewing"
28128 * would be shown instead of "Nobody is viewing". You can specify an explicit number rule for
28129 * other numbers, for example 12, so that instead of showing "12 people are viewing", you can
28130 * show "a dozen people are viewing".
28131 *
28132 * You can use a set of closed braces (`{}`) as a placeholder for the number that you want substituted
28133 * into pluralized strings. In the previous example, Angular will replace `{}` with
28134 * <span ng-non-bindable>`{{personCount}}`</span>. The closed braces `{}` is a placeholder
28135 * for <span ng-non-bindable>{{numberExpression}}</span>.
28136 *
28137 * If no rule is defined for a category, then an empty string is displayed and a warning is generated.
28138 * Note that some locales define more categories than `one` and `other`. For example, fr-fr defines `few` and `many`.
28139 *
28140 * # Configuring ngPluralize with offset
28141 * The `offset` attribute allows further customization of pluralized text, which can result in
28142 * a better user experience. For example, instead of the message "4 people are viewing this document",
28143 * you might display "John, Kate and 2 others are viewing this document".
28144 * The offset attribute allows you to offset a number by any desired value.
28145 * Let's take a look at an example:
28146 *
28147 * ```html
28148 * <ng-pluralize count="personCount" offset=2
28149 *               when="{'0': 'Nobody is viewing.',
28150 *                      '1': '{{person1}} is viewing.',
28151 *                      '2': '{{person1}} and {{person2}} are viewing.',
28152 *                      'one': '{{person1}}, {{person2}} and one other person are viewing.',
28153 *                      'other': '{{person1}}, {{person2}} and {} other people are viewing.'}">
28154 * </ng-pluralize>
28155 * ```
28156 *
28157 * Notice that we are still using two plural categories(one, other), but we added
28158 * three explicit number rules 0, 1 and 2.
28159 * When one person, perhaps John, views the document, "John is viewing" will be shown.
28160 * When three people view the document, no explicit number rule is found, so
28161 * an offset of 2 is taken off 3, and Angular uses 1 to decide the plural category.
28162 * In this case, plural category 'one' is matched and "John, Mary and one other person are viewing"
28163 * is shown.
28164 *
28165 * Note that when you specify offsets, you must provide explicit number rules for
28166 * numbers from 0 up to and including the offset. If you use an offset of 3, for example,
28167 * you must provide explicit number rules for 0, 1, 2 and 3. You must also provide plural strings for
28168 * plural categories "one" and "other".
28169 *
28170 * @param {string|expression} count The variable to be bound to.
28171 * @param {string} when The mapping between plural category to its corresponding strings.
28172 * @param {number=} offset Offset to deduct from the total number.
28173 *
28174 * @example
28175    <example module="pluralizeExample">
28176      <file name="index.html">
28177        <script>
28178          angular.module('pluralizeExample', [])
28179            .controller('ExampleController', ['$scope', function($scope) {
28180              $scope.person1 = 'Igor';
28181              $scope.person2 = 'Misko';
28182              $scope.personCount = 1;
28183            }]);
28184        </script>
28185        <div ng-controller="ExampleController">
28186          <label>Person 1:<input type="text" ng-model="person1" value="Igor" /></label><br/>
28187          <label>Person 2:<input type="text" ng-model="person2" value="Misko" /></label><br/>
28188          <label>Number of People:<input type="text" ng-model="personCount" value="1" /></label><br/>
28189
28190          <!--- Example with simple pluralization rules for en locale --->
28191          Without Offset:
28192          <ng-pluralize count="personCount"
28193                        when="{'0': 'Nobody is viewing.',
28194                               'one': '1 person is viewing.',
28195                               'other': '{} people are viewing.'}">
28196          </ng-pluralize><br>
28197
28198          <!--- Example with offset --->
28199          With Offset(2):
28200          <ng-pluralize count="personCount" offset=2
28201                        when="{'0': 'Nobody is viewing.',
28202                               '1': '{{person1}} is viewing.',
28203                               '2': '{{person1}} and {{person2}} are viewing.',
28204                               'one': '{{person1}}, {{person2}} and one other person are viewing.',
28205                               'other': '{{person1}}, {{person2}} and {} other people are viewing.'}">
28206          </ng-pluralize>
28207        </div>
28208      </file>
28209      <file name="protractor.js" type="protractor">
28210        it('should show correct pluralized string', function() {
28211          var withoutOffset = element.all(by.css('ng-pluralize')).get(0);
28212          var withOffset = element.all(by.css('ng-pluralize')).get(1);
28213          var countInput = element(by.model('personCount'));
28214
28215          expect(withoutOffset.getText()).toEqual('1 person is viewing.');
28216          expect(withOffset.getText()).toEqual('Igor is viewing.');
28217
28218          countInput.clear();
28219          countInput.sendKeys('0');
28220
28221          expect(withoutOffset.getText()).toEqual('Nobody is viewing.');
28222          expect(withOffset.getText()).toEqual('Nobody is viewing.');
28223
28224          countInput.clear();
28225          countInput.sendKeys('2');
28226
28227          expect(withoutOffset.getText()).toEqual('2 people are viewing.');
28228          expect(withOffset.getText()).toEqual('Igor and Misko are viewing.');
28229
28230          countInput.clear();
28231          countInput.sendKeys('3');
28232
28233          expect(withoutOffset.getText()).toEqual('3 people are viewing.');
28234          expect(withOffset.getText()).toEqual('Igor, Misko and one other person are viewing.');
28235
28236          countInput.clear();
28237          countInput.sendKeys('4');
28238
28239          expect(withoutOffset.getText()).toEqual('4 people are viewing.');
28240          expect(withOffset.getText()).toEqual('Igor, Misko and 2 other people are viewing.');
28241        });
28242        it('should show data-bound names', function() {
28243          var withOffset = element.all(by.css('ng-pluralize')).get(1);
28244          var personCount = element(by.model('personCount'));
28245          var person1 = element(by.model('person1'));
28246          var person2 = element(by.model('person2'));
28247          personCount.clear();
28248          personCount.sendKeys('4');
28249          person1.clear();
28250          person1.sendKeys('Di');
28251          person2.clear();
28252          person2.sendKeys('Vojta');
28253          expect(withOffset.getText()).toEqual('Di, Vojta and 2 other people are viewing.');
28254        });
28255      </file>
28256    </example>
28257 */
28258var ngPluralizeDirective = ['$locale', '$interpolate', '$log', function($locale, $interpolate, $log) {
28259  var BRACE = /{}/g,
28260      IS_WHEN = /^when(Minus)?(.+)$/;
28261
28262  return {
28263    link: function(scope, element, attr) {
28264      var numberExp = attr.count,
28265          whenExp = attr.$attr.when && element.attr(attr.$attr.when), // we have {{}} in attrs
28266          offset = attr.offset || 0,
28267          whens = scope.$eval(whenExp) || {},
28268          whensExpFns = {},
28269          startSymbol = $interpolate.startSymbol(),
28270          endSymbol = $interpolate.endSymbol(),
28271          braceReplacement = startSymbol + numberExp + '-' + offset + endSymbol,
28272          watchRemover = angular.noop,
28273          lastCount;
28274
28275      forEach(attr, function(expression, attributeName) {
28276        var tmpMatch = IS_WHEN.exec(attributeName);
28277        if (tmpMatch) {
28278          var whenKey = (tmpMatch[1] ? '-' : '') + lowercase(tmpMatch[2]);
28279          whens[whenKey] = element.attr(attr.$attr[attributeName]);
28280        }
28281      });
28282      forEach(whens, function(expression, key) {
28283        whensExpFns[key] = $interpolate(expression.replace(BRACE, braceReplacement));
28284
28285      });
28286
28287      scope.$watch(numberExp, function ngPluralizeWatchAction(newVal) {
28288        var count = parseFloat(newVal);
28289        var countIsNaN = isNaN(count);
28290
28291        if (!countIsNaN && !(count in whens)) {
28292          // If an explicit number rule such as 1, 2, 3... is defined, just use it.
28293          // Otherwise, check it against pluralization rules in $locale service.
28294          count = $locale.pluralCat(count - offset);
28295        }
28296
28297        // If both `count` and `lastCount` are NaN, we don't need to re-register a watch.
28298        // In JS `NaN !== NaN`, so we have to explicitly check.
28299        if ((count !== lastCount) && !(countIsNaN && isNumber(lastCount) && isNaN(lastCount))) {
28300          watchRemover();
28301          var whenExpFn = whensExpFns[count];
28302          if (isUndefined(whenExpFn)) {
28303            if (newVal != null) {
28304              $log.debug("ngPluralize: no rule defined for '" + count + "' in " + whenExp);
28305            }
28306            watchRemover = noop;
28307            updateElementText();
28308          } else {
28309            watchRemover = scope.$watch(whenExpFn, updateElementText);
28310          }
28311          lastCount = count;
28312        }
28313      });
28314
28315      function updateElementText(newText) {
28316        element.text(newText || '');
28317      }
28318    }
28319  };
28320}];
28321
28322/**
28323 * @ngdoc directive
28324 * @name ngRepeat
28325 * @multiElement
28326 *
28327 * @description
28328 * The `ngRepeat` directive instantiates a template once per item from a collection. Each template
28329 * instance gets its own scope, where the given loop variable is set to the current collection item,
28330 * and `$index` is set to the item index or key.
28331 *
28332 * Special properties are exposed on the local scope of each template instance, including:
28333 *
28334 * | Variable  | Type            | Details                                                                     |
28335 * |-----------|-----------------|-----------------------------------------------------------------------------|
28336 * | `$index`  | {@type number}  | iterator offset of the repeated element (0..length-1)                       |
28337 * | `$first`  | {@type boolean} | true if the repeated element is first in the iterator.                      |
28338 * | `$middle` | {@type boolean} | true if the repeated element is between the first and last in the iterator. |
28339 * | `$last`   | {@type boolean} | true if the repeated element is last in the iterator.                       |
28340 * | `$even`   | {@type boolean} | true if the iterator position `$index` is even (otherwise false).           |
28341 * | `$odd`    | {@type boolean} | true if the iterator position `$index` is odd (otherwise false).            |
28342 *
28343 * <div class="alert alert-info">
28344 *   Creating aliases for these properties is possible with {@link ng.directive:ngInit `ngInit`}.
28345 *   This may be useful when, for instance, nesting ngRepeats.
28346 * </div>
28347 *
28348 *
28349 * # Iterating over object properties
28350 *
28351 * It is possible to get `ngRepeat` to iterate over the properties of an object using the following
28352 * syntax:
28353 *
28354 * ```js
28355 * <div ng-repeat="(key, value) in myObj"> ... </div>
28356 * ```
28357 *
28358 * However, there are a limitations compared to array iteration:
28359 *
28360 * - The JavaScript specification does not define the order of keys
28361 *   returned for an object, so Angular relies on the order returned by the browser
28362 *   when running `for key in myObj`. Browsers generally follow the strategy of providing
28363 *   keys in the order in which they were defined, although there are exceptions when keys are deleted
28364 *   and reinstated. See the
28365 *   [MDN page on `delete` for more info](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/delete#Cross-browser_notes).
28366 *
28367 * - `ngRepeat` will silently *ignore* object keys starting with `$`, because
28368 *   it's a prefix used by Angular for public (`$`) and private (`$$`) properties.
28369 *
28370 * - The built-in filters {@link ng.orderBy orderBy} and {@link ng.filter filter} do not work with
28371 *   objects, and will throw if used with one.
28372 *
28373 * If you are hitting any of these limitations, the recommended workaround is to convert your object into an array
28374 * that is sorted into the order that you prefer before providing it to `ngRepeat`. You could
28375 * do this with a filter such as [toArrayFilter](http://ngmodules.org/modules/angular-toArrayFilter)
28376 * or implement a `$watch` on the object yourself.
28377 *
28378 *
28379 * # Tracking and Duplicates
28380 *
28381 * `ngRepeat` uses {@link $rootScope.Scope#$watchCollection $watchCollection} to detect changes in
28382 * the collection. When a change happens, ngRepeat then makes the corresponding changes to the DOM:
28383 *
28384 * * When an item is added, a new instance of the template is added to the DOM.
28385 * * When an item is removed, its template instance is removed from the DOM.
28386 * * When items are reordered, their respective templates are reordered in the DOM.
28387 *
28388 * To minimize creation of DOM elements, `ngRepeat` uses a function
28389 * to "keep track" of all items in the collection and their corresponding DOM elements.
28390 * For example, if an item is added to the collection, ngRepeat will know that all other items
28391 * already have DOM elements, and will not re-render them.
28392 *
28393 * The default tracking function (which tracks items by their identity) does not allow
28394 * duplicate items in arrays. This is because when there are duplicates, it is not possible
28395 * to maintain a one-to-one mapping between collection items and DOM elements.
28396 *
28397 * If you do need to repeat duplicate items, you can substitute the default tracking behavior
28398 * with your own using the `track by` expression.
28399 *
28400 * For example, you may track items by the index of each item in the collection, using the
28401 * special scope property `$index`:
28402 * ```html
28403 *    <div ng-repeat="n in [42, 42, 43, 43] track by $index">
28404 *      {{n}}
28405 *    </div>
28406 * ```
28407 *
28408 * You may also use arbitrary expressions in `track by`, including references to custom functions
28409 * on the scope:
28410 * ```html
28411 *    <div ng-repeat="n in [42, 42, 43, 43] track by myTrackingFunction(n)">
28412 *      {{n}}
28413 *    </div>
28414 * ```
28415 *
28416 * <div class="alert alert-success">
28417 * If you are working with objects that have an identifier property, you should track
28418 * by the identifier instead of the whole object. Should you reload your data later, `ngRepeat`
28419 * will not have to rebuild the DOM elements for items it has already rendered, even if the
28420 * JavaScript objects in the collection have been substituted for new ones. For large collections,
28421 * this significantly improves rendering performance. If you don't have a unique identifier,
28422 * `track by $index` can also provide a performance boost.
28423 * </div>
28424 * ```html
28425 *    <div ng-repeat="model in collection track by model.id">
28426 *      {{model.name}}
28427 *    </div>
28428 * ```
28429 *
28430 * When no `track by` expression is provided, it is equivalent to tracking by the built-in
28431 * `$id` function, which tracks items by their identity:
28432 * ```html
28433 *    <div ng-repeat="obj in collection track by $id(obj)">
28434 *      {{obj.prop}}
28435 *    </div>
28436 * ```
28437 *
28438 * <div class="alert alert-warning">
28439 * **Note:** `track by` must always be the last expression:
28440 * </div>
28441 * ```
28442 * <div ng-repeat="model in collection | orderBy: 'id' as filtered_result track by model.id">
28443 *     {{model.name}}
28444 * </div>
28445 * ```
28446 *
28447 * # Special repeat start and end points
28448 * To repeat a series of elements instead of just one parent element, ngRepeat (as well as other ng directives) supports extending
28449 * the range of the repeater by defining explicit start and end points by using **ng-repeat-start** and **ng-repeat-end** respectively.
28450 * The **ng-repeat-start** directive works the same as **ng-repeat**, but will repeat all the HTML code (including the tag it's defined on)
28451 * up to and including the ending HTML tag where **ng-repeat-end** is placed.
28452 *
28453 * The example below makes use of this feature:
28454 * ```html
28455 *   <header ng-repeat-start="item in items">
28456 *     Header {{ item }}
28457 *   </header>
28458 *   <div class="body">
28459 *     Body {{ item }}
28460 *   </div>
28461 *   <footer ng-repeat-end>
28462 *     Footer {{ item }}
28463 *   </footer>
28464 * ```
28465 *
28466 * And with an input of {@type ['A','B']} for the items variable in the example above, the output will evaluate to:
28467 * ```html
28468 *   <header>
28469 *     Header A
28470 *   </header>
28471 *   <div class="body">
28472 *     Body A
28473 *   </div>
28474 *   <footer>
28475 *     Footer A
28476 *   </footer>
28477 *   <header>
28478 *     Header B
28479 *   </header>
28480 *   <div class="body">
28481 *     Body B
28482 *   </div>
28483 *   <footer>
28484 *     Footer B
28485 *   </footer>
28486 * ```
28487 *
28488 * The custom start and end points for ngRepeat also support all other HTML directive syntax flavors provided in AngularJS (such
28489 * as **data-ng-repeat-start**, **x-ng-repeat-start** and **ng:repeat-start**).
28490 *
28491 * @animations
28492 * | Animation                        | Occurs                              |
28493 * |----------------------------------|-------------------------------------|
28494 * | {@link ng.$animate#enter enter} | when a new item is added to the list or when an item is revealed after a filter |
28495 * | {@link ng.$animate#leave leave} | when an item is removed from the list or when an item is filtered out |
28496 * | {@link ng.$animate#move move } | when an adjacent item is filtered out causing a reorder or when the item contents are reordered |
28497 *
28498 * See the example below for defining CSS animations with ngRepeat.
28499 *
28500 * @element ANY
28501 * @scope
28502 * @priority 1000
28503 * @param {repeat_expression} ngRepeat The expression indicating how to enumerate a collection. These
28504 *   formats are currently supported:
28505 *
28506 *   * `variable in expression` – where variable is the user defined loop variable and `expression`
28507 *     is a scope expression giving the collection to enumerate.
28508 *
28509 *     For example: `album in artist.albums`.
28510 *
28511 *   * `(key, value) in expression` – where `key` and `value` can be any user defined identifiers,
28512 *     and `expression` is the scope expression giving the collection to enumerate.
28513 *
28514 *     For example: `(name, age) in {'adam':10, 'amalie':12}`.
28515 *
28516 *   * `variable in expression track by tracking_expression` – You can also provide an optional tracking expression
28517 *     which can be used to associate the objects in the collection with the DOM elements. If no tracking expression
28518 *     is specified, ng-repeat associates elements by identity. It is an error to have
28519 *     more than one tracking expression value resolve to the same key. (This would mean that two distinct objects are
28520 *     mapped to the same DOM element, which is not possible.)
28521 *
28522 *     Note that the tracking expression must come last, after any filters, and the alias expression.
28523 *
28524 *     For example: `item in items` is equivalent to `item in items track by $id(item)`. This implies that the DOM elements
28525 *     will be associated by item identity in the array.
28526 *
28527 *     For example: `item in items track by $id(item)`. A built in `$id()` function can be used to assign a unique
28528 *     `$$hashKey` property to each item in the array. This property is then used as a key to associated DOM elements
28529 *     with the corresponding item in the array by identity. Moving the same object in array would move the DOM
28530 *     element in the same way in the DOM.
28531 *
28532 *     For example: `item in items track by item.id` is a typical pattern when the items come from the database. In this
28533 *     case the object identity does not matter. Two objects are considered equivalent as long as their `id`
28534 *     property is same.
28535 *
28536 *     For example: `item in items | filter:searchText track by item.id` is a pattern that might be used to apply a filter
28537 *     to items in conjunction with a tracking expression.
28538 *
28539 *   * `variable in expression as alias_expression` – You can also provide an optional alias expression which will then store the
28540 *     intermediate results of the repeater after the filters have been applied. Typically this is used to render a special message
28541 *     when a filter is active on the repeater, but the filtered result set is empty.
28542 *
28543 *     For example: `item in items | filter:x as results` will store the fragment of the repeated items as `results`, but only after
28544 *     the items have been processed through the filter.
28545 *
28546 *     Please note that `as [variable name] is not an operator but rather a part of ngRepeat micro-syntax so it can be used only at the end
28547 *     (and not as operator, inside an expression).
28548 *
28549 *     For example: `item in items | filter : x | orderBy : order | limitTo : limit as results` .
28550 *
28551 * @example
28552 * This example uses `ngRepeat` to display a list of people. A filter is used to restrict the displayed
28553 * results by name. New (entering) and removed (leaving) items are animated.
28554  <example module="ngRepeat" name="ngRepeat" deps="angular-animate.js" animations="true">
28555    <file name="index.html">
28556      <div ng-controller="repeatController">
28557        I have {{friends.length}} friends. They are:
28558        <input type="search" ng-model="q" placeholder="filter friends..." aria-label="filter friends" />
28559        <ul class="example-animate-container">
28560          <li class="animate-repeat" ng-repeat="friend in friends | filter:q as results">
28561            [{{$index + 1}}] {{friend.name}} who is {{friend.age}} years old.
28562          </li>
28563          <li class="animate-repeat" ng-if="results.length == 0">
28564            <strong>No results found...</strong>
28565          </li>
28566        </ul>
28567      </div>
28568    </file>
28569    <file name="script.js">
28570      angular.module('ngRepeat', ['ngAnimate']).controller('repeatController', function($scope) {
28571        $scope.friends = [
28572          {name:'John', age:25, gender:'boy'},
28573          {name:'Jessie', age:30, gender:'girl'},
28574          {name:'Johanna', age:28, gender:'girl'},
28575          {name:'Joy', age:15, gender:'girl'},
28576          {name:'Mary', age:28, gender:'girl'},
28577          {name:'Peter', age:95, gender:'boy'},
28578          {name:'Sebastian', age:50, gender:'boy'},
28579          {name:'Erika', age:27, gender:'girl'},
28580          {name:'Patrick', age:40, gender:'boy'},
28581          {name:'Samantha', age:60, gender:'girl'}
28582        ];
28583      });
28584    </file>
28585    <file name="animations.css">
28586      .example-animate-container {
28587        background:white;
28588        border:1px solid black;
28589        list-style:none;
28590        margin:0;
28591        padding:0 10px;
28592      }
28593
28594      .animate-repeat {
28595        line-height:30px;
28596        list-style:none;
28597        box-sizing:border-box;
28598      }
28599
28600      .animate-repeat.ng-move,
28601      .animate-repeat.ng-enter,
28602      .animate-repeat.ng-leave {
28603        transition:all linear 0.5s;
28604      }
28605
28606      .animate-repeat.ng-leave.ng-leave-active,
28607      .animate-repeat.ng-move,
28608      .animate-repeat.ng-enter {
28609        opacity:0;
28610        max-height:0;
28611      }
28612
28613      .animate-repeat.ng-leave,
28614      .animate-repeat.ng-move.ng-move-active,
28615      .animate-repeat.ng-enter.ng-enter-active {
28616        opacity:1;
28617        max-height:30px;
28618      }
28619    </file>
28620    <file name="protractor.js" type="protractor">
28621      var friends = element.all(by.repeater('friend in friends'));
28622
28623      it('should render initial data set', function() {
28624        expect(friends.count()).toBe(10);
28625        expect(friends.get(0).getText()).toEqual('[1] John who is 25 years old.');
28626        expect(friends.get(1).getText()).toEqual('[2] Jessie who is 30 years old.');
28627        expect(friends.last().getText()).toEqual('[10] Samantha who is 60 years old.');
28628        expect(element(by.binding('friends.length')).getText())
28629            .toMatch("I have 10 friends. They are:");
28630      });
28631
28632       it('should update repeater when filter predicate changes', function() {
28633         expect(friends.count()).toBe(10);
28634
28635         element(by.model('q')).sendKeys('ma');
28636
28637         expect(friends.count()).toBe(2);
28638         expect(friends.get(0).getText()).toEqual('[1] Mary who is 28 years old.');
28639         expect(friends.last().getText()).toEqual('[2] Samantha who is 60 years old.');
28640       });
28641      </file>
28642    </example>
28643 */
28644var ngRepeatDirective = ['$parse', '$animate', '$compile', function($parse, $animate, $compile) {
28645  var NG_REMOVED = '$$NG_REMOVED';
28646  var ngRepeatMinErr = minErr('ngRepeat');
28647
28648  var updateScope = function(scope, index, valueIdentifier, value, keyIdentifier, key, arrayLength) {
28649    // TODO(perf): generate setters to shave off ~40ms or 1-1.5%
28650    scope[valueIdentifier] = value;
28651    if (keyIdentifier) scope[keyIdentifier] = key;
28652    scope.$index = index;
28653    scope.$first = (index === 0);
28654    scope.$last = (index === (arrayLength - 1));
28655    scope.$middle = !(scope.$first || scope.$last);
28656    // jshint bitwise: false
28657    scope.$odd = !(scope.$even = (index&1) === 0);
28658    // jshint bitwise: true
28659  };
28660
28661  var getBlockStart = function(block) {
28662    return block.clone[0];
28663  };
28664
28665  var getBlockEnd = function(block) {
28666    return block.clone[block.clone.length - 1];
28667  };
28668
28669
28670  return {
28671    restrict: 'A',
28672    multiElement: true,
28673    transclude: 'element',
28674    priority: 1000,
28675    terminal: true,
28676    $$tlb: true,
28677    compile: function ngRepeatCompile($element, $attr) {
28678      var expression = $attr.ngRepeat;
28679      var ngRepeatEndComment = $compile.$$createComment('end ngRepeat', expression);
28680
28681      var match = expression.match(/^\s*([\s\S]+?)\s+in\s+([\s\S]+?)(?:\s+as\s+([\s\S]+?))?(?:\s+track\s+by\s+([\s\S]+?))?\s*$/);
28682
28683      if (!match) {
28684        throw ngRepeatMinErr('iexp', "Expected expression in form of '_item_ in _collection_[ track by _id_]' but got '{0}'.",
28685            expression);
28686      }
28687
28688      var lhs = match[1];
28689      var rhs = match[2];
28690      var aliasAs = match[3];
28691      var trackByExp = match[4];
28692
28693      match = lhs.match(/^(?:(\s*[\$\w]+)|\(\s*([\$\w]+)\s*,\s*([\$\w]+)\s*\))$/);
28694
28695      if (!match) {
28696        throw ngRepeatMinErr('iidexp', "'_item_' in '_item_ in _collection_' should be an identifier or '(_key_, _value_)' expression, but got '{0}'.",
28697            lhs);
28698      }
28699      var valueIdentifier = match[3] || match[1];
28700      var keyIdentifier = match[2];
28701
28702      if (aliasAs && (!/^[$a-zA-Z_][$a-zA-Z0-9_]*$/.test(aliasAs) ||
28703          /^(null|undefined|this|\$index|\$first|\$middle|\$last|\$even|\$odd|\$parent|\$root|\$id)$/.test(aliasAs))) {
28704        throw ngRepeatMinErr('badident', "alias '{0}' is invalid --- must be a valid JS identifier which is not a reserved name.",
28705          aliasAs);
28706      }
28707
28708      var trackByExpGetter, trackByIdExpFn, trackByIdArrayFn, trackByIdObjFn;
28709      var hashFnLocals = {$id: hashKey};
28710
28711      if (trackByExp) {
28712        trackByExpGetter = $parse(trackByExp);
28713      } else {
28714        trackByIdArrayFn = function(key, value) {
28715          return hashKey(value);
28716        };
28717        trackByIdObjFn = function(key) {
28718          return key;
28719        };
28720      }
28721
28722      return function ngRepeatLink($scope, $element, $attr, ctrl, $transclude) {
28723
28724        if (trackByExpGetter) {
28725          trackByIdExpFn = function(key, value, index) {
28726            // assign key, value, and $index to the locals so that they can be used in hash functions
28727            if (keyIdentifier) hashFnLocals[keyIdentifier] = key;
28728            hashFnLocals[valueIdentifier] = value;
28729            hashFnLocals.$index = index;
28730            return trackByExpGetter($scope, hashFnLocals);
28731          };
28732        }
28733
28734        // Store a list of elements from previous run. This is a hash where key is the item from the
28735        // iterator, and the value is objects with following properties.
28736        //   - scope: bound scope
28737        //   - element: previous element.
28738        //   - index: position
28739        //
28740        // We are using no-proto object so that we don't need to guard against inherited props via
28741        // hasOwnProperty.
28742        var lastBlockMap = createMap();
28743
28744        //watch props
28745        $scope.$watchCollection(rhs, function ngRepeatAction(collection) {
28746          var index, length,
28747              previousNode = $element[0],     // node that cloned nodes should be inserted after
28748                                              // initialized to the comment node anchor
28749              nextNode,
28750              // Same as lastBlockMap but it has the current state. It will become the
28751              // lastBlockMap on the next iteration.
28752              nextBlockMap = createMap(),
28753              collectionLength,
28754              key, value, // key/value of iteration
28755              trackById,
28756              trackByIdFn,
28757              collectionKeys,
28758              block,       // last object information {scope, element, id}
28759              nextBlockOrder,
28760              elementsToRemove;
28761
28762          if (aliasAs) {
28763            $scope[aliasAs] = collection;
28764          }
28765
28766          if (isArrayLike(collection)) {
28767            collectionKeys = collection;
28768            trackByIdFn = trackByIdExpFn || trackByIdArrayFn;
28769          } else {
28770            trackByIdFn = trackByIdExpFn || trackByIdObjFn;
28771            // if object, extract keys, in enumeration order, unsorted
28772            collectionKeys = [];
28773            for (var itemKey in collection) {
28774              if (hasOwnProperty.call(collection, itemKey) && itemKey.charAt(0) !== '$') {
28775                collectionKeys.push(itemKey);
28776              }
28777            }
28778          }
28779
28780          collectionLength = collectionKeys.length;
28781          nextBlockOrder = new Array(collectionLength);
28782
28783          // locate existing items
28784          for (index = 0; index < collectionLength; index++) {
28785            key = (collection === collectionKeys) ? index : collectionKeys[index];
28786            value = collection[key];
28787            trackById = trackByIdFn(key, value, index);
28788            if (lastBlockMap[trackById]) {
28789              // found previously seen block
28790              block = lastBlockMap[trackById];
28791              delete lastBlockMap[trackById];
28792              nextBlockMap[trackById] = block;
28793              nextBlockOrder[index] = block;
28794            } else if (nextBlockMap[trackById]) {
28795              // if collision detected. restore lastBlockMap and throw an error
28796              forEach(nextBlockOrder, function(block) {
28797                if (block && block.scope) lastBlockMap[block.id] = block;
28798              });
28799              throw ngRepeatMinErr('dupes',
28800                  "Duplicates in a repeater are not allowed. Use 'track by' expression to specify unique keys. Repeater: {0}, Duplicate key: {1}, Duplicate value: {2}",
28801                  expression, trackById, value);
28802            } else {
28803              // new never before seen block
28804              nextBlockOrder[index] = {id: trackById, scope: undefined, clone: undefined};
28805              nextBlockMap[trackById] = true;
28806            }
28807          }
28808
28809          // remove leftover items
28810          for (var blockKey in lastBlockMap) {
28811            block = lastBlockMap[blockKey];
28812            elementsToRemove = getBlockNodes(block.clone);
28813            $animate.leave(elementsToRemove);
28814            if (elementsToRemove[0].parentNode) {
28815              // if the element was not removed yet because of pending animation, mark it as deleted
28816              // so that we can ignore it later
28817              for (index = 0, length = elementsToRemove.length; index < length; index++) {
28818                elementsToRemove[index][NG_REMOVED] = true;
28819              }
28820            }
28821            block.scope.$destroy();
28822          }
28823
28824          // we are not using forEach for perf reasons (trying to avoid #call)
28825          for (index = 0; index < collectionLength; index++) {
28826            key = (collection === collectionKeys) ? index : collectionKeys[index];
28827            value = collection[key];
28828            block = nextBlockOrder[index];
28829
28830            if (block.scope) {
28831              // if we have already seen this object, then we need to reuse the
28832              // associated scope/element
28833
28834              nextNode = previousNode;
28835
28836              // skip nodes that are already pending removal via leave animation
28837              do {
28838                nextNode = nextNode.nextSibling;
28839              } while (nextNode && nextNode[NG_REMOVED]);
28840
28841              if (getBlockStart(block) != nextNode) {
28842                // existing item which got moved
28843                $animate.move(getBlockNodes(block.clone), null, previousNode);
28844              }
28845              previousNode = getBlockEnd(block);
28846              updateScope(block.scope, index, valueIdentifier, value, keyIdentifier, key, collectionLength);
28847            } else {
28848              // new item which we don't know about
28849              $transclude(function ngRepeatTransclude(clone, scope) {
28850                block.scope = scope;
28851                // http://jsperf.com/clone-vs-createcomment
28852                var endNode = ngRepeatEndComment.cloneNode(false);
28853                clone[clone.length++] = endNode;
28854
28855                $animate.enter(clone, null, previousNode);
28856                previousNode = endNode;
28857                // Note: We only need the first/last node of the cloned nodes.
28858                // However, we need to keep the reference to the jqlite wrapper as it might be changed later
28859                // by a directive with templateUrl when its template arrives.
28860                block.clone = clone;
28861                nextBlockMap[block.id] = block;
28862                updateScope(block.scope, index, valueIdentifier, value, keyIdentifier, key, collectionLength);
28863              });
28864            }
28865          }
28866          lastBlockMap = nextBlockMap;
28867        });
28868      };
28869    }
28870  };
28871}];
28872
28873var NG_HIDE_CLASS = 'ng-hide';
28874var NG_HIDE_IN_PROGRESS_CLASS = 'ng-hide-animate';
28875/**
28876 * @ngdoc directive
28877 * @name ngShow
28878 * @multiElement
28879 *
28880 * @description
28881 * The `ngShow` directive shows or hides the given HTML element based on the expression
28882 * provided to the `ngShow` attribute. The element is shown or hidden by removing or adding
28883 * the `.ng-hide` CSS class onto the element. The `.ng-hide` CSS class is predefined
28884 * in AngularJS and sets the display style to none (using an !important flag).
28885 * For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).
28886 *
28887 * ```html
28888 * <!-- when $scope.myValue is truthy (element is visible) -->
28889 * <div ng-show="myValue"></div>
28890 *
28891 * <!-- when $scope.myValue is falsy (element is hidden) -->
28892 * <div ng-show="myValue" class="ng-hide"></div>
28893 * ```
28894 *
28895 * When the `ngShow` expression evaluates to a falsy value then the `.ng-hide` CSS class is added to the class
28896 * attribute on the element causing it to become hidden. When truthy, the `.ng-hide` CSS class is removed
28897 * from the element causing the element not to appear hidden.
28898 *
28899 * ## Why is !important used?
28900 *
28901 * You may be wondering why !important is used for the `.ng-hide` CSS class. This is because the `.ng-hide` selector
28902 * can be easily overridden by heavier selectors. For example, something as simple
28903 * as changing the display style on a HTML list item would make hidden elements appear visible.
28904 * This also becomes a bigger issue when dealing with CSS frameworks.
28905 *
28906 * By using !important, the show and hide behavior will work as expected despite any clash between CSS selector
28907 * specificity (when !important isn't used with any conflicting styles). If a developer chooses to override the
28908 * styling to change how to hide an element then it is just a matter of using !important in their own CSS code.
28909 *
28910 * ### Overriding `.ng-hide`
28911 *
28912 * By default, the `.ng-hide` class will style the element with `display: none!important`. If you wish to change
28913 * the hide behavior with ngShow/ngHide then this can be achieved by restating the styles for the `.ng-hide`
28914 * class CSS. Note that the selector that needs to be used is actually `.ng-hide:not(.ng-hide-animate)` to cope
28915 * with extra animation classes that can be added.
28916 *
28917 * ```css
28918 * .ng-hide:not(.ng-hide-animate) {
28919 *   /&#42; this is just another form of hiding an element &#42;/
28920 *   display: block!important;
28921 *   position: absolute;
28922 *   top: -9999px;
28923 *   left: -9999px;
28924 * }
28925 * ```
28926 *
28927 * By default you don't need to override in CSS anything and the animations will work around the display style.
28928 *
28929 * ## A note about animations with `ngShow`
28930 *
28931 * Animations in ngShow/ngHide work with the show and hide events that are triggered when the directive expression
28932 * is true and false. This system works like the animation system present with ngClass except that
28933 * you must also include the !important flag to override the display property
28934 * so that you can perform an animation when the element is hidden during the time of the animation.
28935 *
28936 * ```css
28937 * //
28938 * //a working example can be found at the bottom of this page
28939 * //
28940 * .my-element.ng-hide-add, .my-element.ng-hide-remove {
28941 *   /&#42; this is required as of 1.3x to properly
28942 *      apply all styling in a show/hide animation &#42;/
28943 *   transition: 0s linear all;
28944 * }
28945 *
28946 * .my-element.ng-hide-add-active,
28947 * .my-element.ng-hide-remove-active {
28948 *   /&#42; the transition is defined in the active class &#42;/
28949 *   transition: 1s linear all;
28950 * }
28951 *
28952 * .my-element.ng-hide-add { ... }
28953 * .my-element.ng-hide-add.ng-hide-add-active { ... }
28954 * .my-element.ng-hide-remove { ... }
28955 * .my-element.ng-hide-remove.ng-hide-remove-active { ... }
28956 * ```
28957 *
28958 * Keep in mind that, as of AngularJS version 1.3, there is no need to change the display
28959 * property to block during animation states--ngAnimate will handle the style toggling automatically for you.
28960 *
28961 * @animations
28962 * | Animation                        | Occurs                              |
28963 * |----------------------------------|-------------------------------------|
28964 * | {@link $animate#addClass addClass} `.ng-hide`  | after the `ngShow` expression evaluates to a non truthy value and just before the contents are set to hidden |
28965 * | {@link $animate#removeClass removeClass}  `.ng-hide`  | after the `ngShow` expression evaluates to a truthy value and just before contents are set to visible |
28966 *
28967 * @element ANY
28968 * @param {expression} ngShow If the {@link guide/expression expression} is truthy
28969 *     then the element is shown or hidden respectively.
28970 *
28971 * @example
28972  <example module="ngAnimate" deps="angular-animate.js" animations="true">
28973    <file name="index.html">
28974      Click me: <input type="checkbox" ng-model="checked" aria-label="Toggle ngHide"><br/>
28975      <div>
28976        Show:
28977        <div class="check-element animate-show" ng-show="checked">
28978          <span class="glyphicon glyphicon-thumbs-up"></span> I show up when your checkbox is checked.
28979        </div>
28980      </div>
28981      <div>
28982        Hide:
28983        <div class="check-element animate-show" ng-hide="checked">
28984          <span class="glyphicon glyphicon-thumbs-down"></span> I hide when your checkbox is checked.
28985        </div>
28986      </div>
28987    </file>
28988    <file name="glyphicons.css">
28989      @import url(../../components/bootstrap-3.1.1/css/bootstrap.css);
28990    </file>
28991    <file name="animations.css">
28992      .animate-show {
28993        line-height: 20px;
28994        opacity: 1;
28995        padding: 10px;
28996        border: 1px solid black;
28997        background: white;
28998      }
28999
29000      .animate-show.ng-hide-add, .animate-show.ng-hide-remove {
29001        transition: all linear 0.5s;
29002      }
29003
29004      .animate-show.ng-hide {
29005        line-height: 0;
29006        opacity: 0;
29007        padding: 0 10px;
29008      }
29009
29010      .check-element {
29011        padding: 10px;
29012        border: 1px solid black;
29013        background: white;
29014      }
29015    </file>
29016    <file name="protractor.js" type="protractor">
29017      var thumbsUp = element(by.css('span.glyphicon-thumbs-up'));
29018      var thumbsDown = element(by.css('span.glyphicon-thumbs-down'));
29019
29020      it('should check ng-show / ng-hide', function() {
29021        expect(thumbsUp.isDisplayed()).toBeFalsy();
29022        expect(thumbsDown.isDisplayed()).toBeTruthy();
29023
29024        element(by.model('checked')).click();
29025
29026        expect(thumbsUp.isDisplayed()).toBeTruthy();
29027        expect(thumbsDown.isDisplayed()).toBeFalsy();
29028      });
29029    </file>
29030  </example>
29031 */
29032var ngShowDirective = ['$animate', function($animate) {
29033  return {
29034    restrict: 'A',
29035    multiElement: true,
29036    link: function(scope, element, attr) {
29037      scope.$watch(attr.ngShow, function ngShowWatchAction(value) {
29038        // we're adding a temporary, animation-specific class for ng-hide since this way
29039        // we can control when the element is actually displayed on screen without having
29040        // to have a global/greedy CSS selector that breaks when other animations are run.
29041        // Read: https://github.com/angular/angular.js/issues/9103#issuecomment-58335845
29042        $animate[value ? 'removeClass' : 'addClass'](element, NG_HIDE_CLASS, {
29043          tempClasses: NG_HIDE_IN_PROGRESS_CLASS
29044        });
29045      });
29046    }
29047  };
29048}];
29049
29050
29051/**
29052 * @ngdoc directive
29053 * @name ngHide
29054 * @multiElement
29055 *
29056 * @description
29057 * The `ngHide` directive shows or hides the given HTML element based on the expression
29058 * provided to the `ngHide` attribute. The element is shown or hidden by removing or adding
29059 * the `ng-hide` CSS class onto the element. The `.ng-hide` CSS class is predefined
29060 * in AngularJS and sets the display style to none (using an !important flag).
29061 * For CSP mode please add `angular-csp.css` to your html file (see {@link ng.directive:ngCsp ngCsp}).
29062 *
29063 * ```html
29064 * <!-- when $scope.myValue is truthy (element is hidden) -->
29065 * <div ng-hide="myValue" class="ng-hide"></div>
29066 *
29067 * <!-- when $scope.myValue is falsy (element is visible) -->
29068 * <div ng-hide="myValue"></div>
29069 * ```
29070 *
29071 * When the `ngHide` expression evaluates to a truthy value then the `.ng-hide` CSS class is added to the class
29072 * attribute on the element causing it to become hidden. When falsy, the `.ng-hide` CSS class is removed
29073 * from the element causing the element not to appear hidden.
29074 *
29075 * ## Why is !important used?
29076 *
29077 * You may be wondering why !important is used for the `.ng-hide` CSS class. This is because the `.ng-hide` selector
29078 * can be easily overridden by heavier selectors. For example, something as simple
29079 * as changing the display style on a HTML list item would make hidden elements appear visible.
29080 * This also becomes a bigger issue when dealing with CSS frameworks.
29081 *
29082 * By using !important, the show and hide behavior will work as expected despite any clash between CSS selector
29083 * specificity (when !important isn't used with any conflicting styles). If a developer chooses to override the
29084 * styling to change how to hide an element then it is just a matter of using !important in their own CSS code.
29085 *
29086 * ### Overriding `.ng-hide`
29087 *
29088 * By default, the `.ng-hide` class will style the element with `display: none!important`. If you wish to change
29089 * the hide behavior with ngShow/ngHide then this can be achieved by restating the styles for the `.ng-hide`
29090 * class in CSS:
29091 *
29092 * ```css
29093 * .ng-hide {
29094 *   /&#42; this is just another form of hiding an element &#42;/
29095 *   display: block!important;
29096 *   position: absolute;
29097 *   top: -9999px;
29098 *   left: -9999px;
29099 * }
29100 * ```
29101 *
29102 * By default you don't need to override in CSS anything and the animations will work around the display style.
29103 *
29104 * ## A note about animations with `ngHide`
29105 *
29106 * Animations in ngShow/ngHide work with the show and hide events that are triggered when the directive expression
29107 * is true and false. This system works like the animation system present with ngClass, except that the `.ng-hide`
29108 * CSS class is added and removed for you instead of your own CSS class.
29109 *
29110 * ```css
29111 * //
29112 * //a working example can be found at the bottom of this page
29113 * //
29114 * .my-element.ng-hide-add, .my-element.ng-hide-remove {
29115 *   transition: 0.5s linear all;
29116 * }
29117 *
29118 * .my-element.ng-hide-add { ... }
29119 * .my-element.ng-hide-add.ng-hide-add-active { ... }
29120 * .my-element.ng-hide-remove { ... }
29121 * .my-element.ng-hide-remove.ng-hide-remove-active { ... }
29122 * ```
29123 *
29124 * Keep in mind that, as of AngularJS version 1.3, there is no need to change the display
29125 * property to block during animation states--ngAnimate will handle the style toggling automatically for you.
29126 *
29127 * @animations
29128 * | Animation                        | Occurs                              |
29129 * |----------------------------------|-------------------------------------|
29130 * | {@link $animate#addClass addClass} `.ng-hide`  | after the `ngHide` expression evaluates to a truthy value and just before the contents are set to hidden |
29131 * | {@link $animate#removeClass removeClass}  `.ng-hide`  | after the `ngHide` expression evaluates to a non truthy value and just before contents are set to visible |
29132 *
29133 *
29134 * @element ANY
29135 * @param {expression} ngHide If the {@link guide/expression expression} is truthy then
29136 *     the element is shown or hidden respectively.
29137 *
29138 * @example
29139  <example module="ngAnimate" deps="angular-animate.js" animations="true">
29140    <file name="index.html">
29141      Click me: <input type="checkbox" ng-model="checked" aria-label="Toggle ngShow"><br/>
29142      <div>
29143        Show:
29144        <div class="check-element animate-hide" ng-show="checked">
29145          <span class="glyphicon glyphicon-thumbs-up"></span> I show up when your checkbox is checked.
29146        </div>
29147      </div>
29148      <div>
29149        Hide:
29150        <div class="check-element animate-hide" ng-hide="checked">
29151          <span class="glyphicon glyphicon-thumbs-down"></span> I hide when your checkbox is checked.
29152        </div>
29153      </div>
29154    </file>
29155    <file name="glyphicons.css">
29156      @import url(../../components/bootstrap-3.1.1/css/bootstrap.css);
29157    </file>
29158    <file name="animations.css">
29159      .animate-hide {
29160        transition: all linear 0.5s;
29161        line-height: 20px;
29162        opacity: 1;
29163        padding: 10px;
29164        border: 1px solid black;
29165        background: white;
29166      }
29167
29168      .animate-hide.ng-hide {
29169        line-height: 0;
29170        opacity: 0;
29171        padding: 0 10px;
29172      }
29173
29174      .check-element {
29175        padding: 10px;
29176        border: 1px solid black;
29177        background: white;
29178      }
29179    </file>
29180    <file name="protractor.js" type="protractor">
29181      var thumbsUp = element(by.css('span.glyphicon-thumbs-up'));
29182      var thumbsDown = element(by.css('span.glyphicon-thumbs-down'));
29183
29184      it('should check ng-show / ng-hide', function() {
29185        expect(thumbsUp.isDisplayed()).toBeFalsy();
29186        expect(thumbsDown.isDisplayed()).toBeTruthy();
29187
29188        element(by.model('checked')).click();
29189
29190        expect(thumbsUp.isDisplayed()).toBeTruthy();
29191        expect(thumbsDown.isDisplayed()).toBeFalsy();
29192      });
29193    </file>
29194  </example>
29195 */
29196var ngHideDirective = ['$animate', function($animate) {
29197  return {
29198    restrict: 'A',
29199    multiElement: true,
29200    link: function(scope, element, attr) {
29201      scope.$watch(attr.ngHide, function ngHideWatchAction(value) {
29202        // The comment inside of the ngShowDirective explains why we add and
29203        // remove a temporary class for the show/hide animation
29204        $animate[value ? 'addClass' : 'removeClass'](element,NG_HIDE_CLASS, {
29205          tempClasses: NG_HIDE_IN_PROGRESS_CLASS
29206        });
29207      });
29208    }
29209  };
29210}];
29211
29212/**
29213 * @ngdoc directive
29214 * @name ngStyle
29215 * @restrict AC
29216 *
29217 * @description
29218 * The `ngStyle` directive allows you to set CSS style on an HTML element conditionally.
29219 *
29220 * @element ANY
29221 * @param {expression} ngStyle
29222 *
29223 * {@link guide/expression Expression} which evals to an
29224 * object whose keys are CSS style names and values are corresponding values for those CSS
29225 * keys.
29226 *
29227 * Since some CSS style names are not valid keys for an object, they must be quoted.
29228 * See the 'background-color' style in the example below.
29229 *
29230 * @example
29231   <example>
29232     <file name="index.html">
29233        <input type="button" value="set color" ng-click="myStyle={color:'red'}">
29234        <input type="button" value="set background" ng-click="myStyle={'background-color':'blue'}">
29235        <input type="button" value="clear" ng-click="myStyle={}">
29236        <br/>
29237        <span ng-style="myStyle">Sample Text</span>
29238        <pre>myStyle={{myStyle}}</pre>
29239     </file>
29240     <file name="style.css">
29241       span {
29242         color: black;
29243       }
29244     </file>
29245     <file name="protractor.js" type="protractor">
29246       var colorSpan = element(by.css('span'));
29247
29248       it('should check ng-style', function() {
29249         expect(colorSpan.getCssValue('color')).toBe('rgba(0, 0, 0, 1)');
29250         element(by.css('input[value=\'set color\']')).click();
29251         expect(colorSpan.getCssValue('color')).toBe('rgba(255, 0, 0, 1)');
29252         element(by.css('input[value=clear]')).click();
29253         expect(colorSpan.getCssValue('color')).toBe('rgba(0, 0, 0, 1)');
29254       });
29255     </file>
29256   </example>
29257 */
29258var ngStyleDirective = ngDirective(function(scope, element, attr) {
29259  scope.$watch(attr.ngStyle, function ngStyleWatchAction(newStyles, oldStyles) {
29260    if (oldStyles && (newStyles !== oldStyles)) {
29261      forEach(oldStyles, function(val, style) { element.css(style, '');});
29262    }
29263    if (newStyles) element.css(newStyles);
29264  }, true);
29265});
29266
29267/**
29268 * @ngdoc directive
29269 * @name ngSwitch
29270 * @restrict EA
29271 *
29272 * @description
29273 * The `ngSwitch` directive is used to conditionally swap DOM structure on your template based on a scope expression.
29274 * Elements within `ngSwitch` but without `ngSwitchWhen` or `ngSwitchDefault` directives will be preserved at the location
29275 * as specified in the template.
29276 *
29277 * The directive itself works similar to ngInclude, however, instead of downloading template code (or loading it
29278 * from the template cache), `ngSwitch` simply chooses one of the nested elements and makes it visible based on which element
29279 * matches the value obtained from the evaluated expression. In other words, you define a container element
29280 * (where you place the directive), place an expression on the **`on="..."` attribute**
29281 * (or the **`ng-switch="..."` attribute**), define any inner elements inside of the directive and place
29282 * a when attribute per element. The when attribute is used to inform ngSwitch which element to display when the on
29283 * expression is evaluated. If a matching expression is not found via a when attribute then an element with the default
29284 * attribute is displayed.
29285 *
29286 * <div class="alert alert-info">
29287 * Be aware that the attribute values to match against cannot be expressions. They are interpreted
29288 * as literal string values to match against.
29289 * For example, **`ng-switch-when="someVal"`** will match against the string `"someVal"` not against the
29290 * value of the expression `$scope.someVal`.
29291 * </div>
29292
29293 * @animations
29294 * | Animation                        | Occurs                              |
29295 * |----------------------------------|-------------------------------------|
29296 * | {@link ng.$animate#enter enter}  | after the ngSwitch contents change and the matched child element is placed inside the container |
29297 * | {@link ng.$animate#leave leave}  | after the ngSwitch contents change and just before the former contents are removed from the DOM |
29298 *
29299 * @usage
29300 *
29301 * ```
29302 * <ANY ng-switch="expression">
29303 *   <ANY ng-switch-when="matchValue1">...</ANY>
29304 *   <ANY ng-switch-when="matchValue2">...</ANY>
29305 *   <ANY ng-switch-default>...</ANY>
29306 * </ANY>
29307 * ```
29308 *
29309 *
29310 * @scope
29311 * @priority 1200
29312 * @param {*} ngSwitch|on expression to match against <code>ng-switch-when</code>.
29313 * On child elements add:
29314 *
29315 * * `ngSwitchWhen`: the case statement to match against. If match then this
29316 *   case will be displayed. If the same match appears multiple times, all the
29317 *   elements will be displayed.
29318 * * `ngSwitchDefault`: the default case when no other case match. If there
29319 *   are multiple default cases, all of them will be displayed when no other
29320 *   case match.
29321 *
29322 *
29323 * @example
29324  <example module="switchExample" deps="angular-animate.js" animations="true">
29325    <file name="index.html">
29326      <div ng-controller="ExampleController">
29327        <select ng-model="selection" ng-options="item for item in items">
29328        </select>
29329        <code>selection={{selection}}</code>
29330        <hr/>
29331        <div class="animate-switch-container"
29332          ng-switch on="selection">
29333            <div class="animate-switch" ng-switch-when="settings">Settings Div</div>
29334            <div class="animate-switch" ng-switch-when="home">Home Span</div>
29335            <div class="animate-switch" ng-switch-default>default</div>
29336        </div>
29337      </div>
29338    </file>
29339    <file name="script.js">
29340      angular.module('switchExample', ['ngAnimate'])
29341        .controller('ExampleController', ['$scope', function($scope) {
29342          $scope.items = ['settings', 'home', 'other'];
29343          $scope.selection = $scope.items[0];
29344        }]);
29345    </file>
29346    <file name="animations.css">
29347      .animate-switch-container {
29348        position:relative;
29349        background:white;
29350        border:1px solid black;
29351        height:40px;
29352        overflow:hidden;
29353      }
29354
29355      .animate-switch {
29356        padding:10px;
29357      }
29358
29359      .animate-switch.ng-animate {
29360        transition:all cubic-bezier(0.250, 0.460, 0.450, 0.940) 0.5s;
29361
29362        position:absolute;
29363        top:0;
29364        left:0;
29365        right:0;
29366        bottom:0;
29367      }
29368
29369      .animate-switch.ng-leave.ng-leave-active,
29370      .animate-switch.ng-enter {
29371        top:-50px;
29372      }
29373      .animate-switch.ng-leave,
29374      .animate-switch.ng-enter.ng-enter-active {
29375        top:0;
29376      }
29377    </file>
29378    <file name="protractor.js" type="protractor">
29379      var switchElem = element(by.css('[ng-switch]'));
29380      var select = element(by.model('selection'));
29381
29382      it('should start in settings', function() {
29383        expect(switchElem.getText()).toMatch(/Settings Div/);
29384      });
29385      it('should change to home', function() {
29386        select.all(by.css('option')).get(1).click();
29387        expect(switchElem.getText()).toMatch(/Home Span/);
29388      });
29389      it('should select default', function() {
29390        select.all(by.css('option')).get(2).click();
29391        expect(switchElem.getText()).toMatch(/default/);
29392      });
29393    </file>
29394  </example>
29395 */
29396var ngSwitchDirective = ['$animate', '$compile', function($animate, $compile) {
29397  return {
29398    require: 'ngSwitch',
29399
29400    // asks for $scope to fool the BC controller module
29401    controller: ['$scope', function ngSwitchController() {
29402     this.cases = {};
29403    }],
29404    link: function(scope, element, attr, ngSwitchController) {
29405      var watchExpr = attr.ngSwitch || attr.on,
29406          selectedTranscludes = [],
29407          selectedElements = [],
29408          previousLeaveAnimations = [],
29409          selectedScopes = [];
29410
29411      var spliceFactory = function(array, index) {
29412          return function() { array.splice(index, 1); };
29413      };
29414
29415      scope.$watch(watchExpr, function ngSwitchWatchAction(value) {
29416        var i, ii;
29417        for (i = 0, ii = previousLeaveAnimations.length; i < ii; ++i) {
29418          $animate.cancel(previousLeaveAnimations[i]);
29419        }
29420        previousLeaveAnimations.length = 0;
29421
29422        for (i = 0, ii = selectedScopes.length; i < ii; ++i) {
29423          var selected = getBlockNodes(selectedElements[i].clone);
29424          selectedScopes[i].$destroy();
29425          var promise = previousLeaveAnimations[i] = $animate.leave(selected);
29426          promise.then(spliceFactory(previousLeaveAnimations, i));
29427        }
29428
29429        selectedElements.length = 0;
29430        selectedScopes.length = 0;
29431
29432        if ((selectedTranscludes = ngSwitchController.cases['!' + value] || ngSwitchController.cases['?'])) {
29433          forEach(selectedTranscludes, function(selectedTransclude) {
29434            selectedTransclude.transclude(function(caseElement, selectedScope) {
29435              selectedScopes.push(selectedScope);
29436              var anchor = selectedTransclude.element;
29437              caseElement[caseElement.length++] = $compile.$$createComment('end ngSwitchWhen');
29438              var block = { clone: caseElement };
29439
29440              selectedElements.push(block);
29441              $animate.enter(caseElement, anchor.parent(), anchor);
29442            });
29443          });
29444        }
29445      });
29446    }
29447  };
29448}];
29449
29450var ngSwitchWhenDirective = ngDirective({
29451  transclude: 'element',
29452  priority: 1200,
29453  require: '^ngSwitch',
29454  multiElement: true,
29455  link: function(scope, element, attrs, ctrl, $transclude) {
29456    ctrl.cases['!' + attrs.ngSwitchWhen] = (ctrl.cases['!' + attrs.ngSwitchWhen] || []);
29457    ctrl.cases['!' + attrs.ngSwitchWhen].push({ transclude: $transclude, element: element });
29458  }
29459});
29460
29461var ngSwitchDefaultDirective = ngDirective({
29462  transclude: 'element',
29463  priority: 1200,
29464  require: '^ngSwitch',
29465  multiElement: true,
29466  link: function(scope, element, attr, ctrl, $transclude) {
29467    ctrl.cases['?'] = (ctrl.cases['?'] || []);
29468    ctrl.cases['?'].push({ transclude: $transclude, element: element });
29469   }
29470});
29471
29472/**
29473 * @ngdoc directive
29474 * @name ngTransclude
29475 * @restrict EAC
29476 *
29477 * @description
29478 * Directive that marks the insertion point for the transcluded DOM of the nearest parent directive that uses transclusion.
29479 *
29480 * You can specify that you want to insert a named transclusion slot, instead of the default slot, by providing the slot name
29481 * as the value of the `ng-transclude` or `ng-transclude-slot` attribute.
29482 *
29483 * If the transcluded content is not empty (i.e. contains one or more DOM nodes, including whitespace text nodes), any existing
29484 * content of this element will be removed before the transcluded content is inserted.
29485 * If the transcluded content is empty, the existing content is left intact. This lets you provide fallback content in the case
29486 * that no transcluded content is provided.
29487 *
29488 * @element ANY
29489 *
29490 * @param {string} ngTransclude|ngTranscludeSlot the name of the slot to insert at this point. If this is not provided, is empty
29491 *                                               or its value is the same as the name of the attribute then the default slot is used.
29492 *
29493 * @example
29494 * ### Basic transclusion
29495 * This example demonstrates basic transclusion of content into a component directive.
29496 * <example name="simpleTranscludeExample" module="transcludeExample">
29497 *   <file name="index.html">
29498 *     <script>
29499 *       angular.module('transcludeExample', [])
29500 *        .directive('pane', function(){
29501 *           return {
29502 *             restrict: 'E',
29503 *             transclude: true,
29504 *             scope: { title:'@' },
29505 *             template: '<div style="border: 1px solid black;">' +
29506 *                         '<div style="background-color: gray">{{title}}</div>' +
29507 *                         '<ng-transclude></ng-transclude>' +
29508 *                       '</div>'
29509 *           };
29510 *       })
29511 *       .controller('ExampleController', ['$scope', function($scope) {
29512 *         $scope.title = 'Lorem Ipsum';
29513 *         $scope.text = 'Neque porro quisquam est qui dolorem ipsum quia dolor...';
29514 *       }]);
29515 *     </script>
29516 *     <div ng-controller="ExampleController">
29517 *       <input ng-model="title" aria-label="title"> <br/>
29518 *       <textarea ng-model="text" aria-label="text"></textarea> <br/>
29519 *       <pane title="{{title}}">{{text}}</pane>
29520 *     </div>
29521 *   </file>
29522 *   <file name="protractor.js" type="protractor">
29523 *      it('should have transcluded', function() {
29524 *        var titleElement = element(by.model('title'));
29525 *        titleElement.clear();
29526 *        titleElement.sendKeys('TITLE');
29527 *        var textElement = element(by.model('text'));
29528 *        textElement.clear();
29529 *        textElement.sendKeys('TEXT');
29530 *        expect(element(by.binding('title')).getText()).toEqual('TITLE');
29531 *        expect(element(by.binding('text')).getText()).toEqual('TEXT');
29532 *      });
29533 *   </file>
29534 * </example>
29535 *
29536 * @example
29537 * ### Transclude fallback content
29538 * This example shows how to use `NgTransclude` with fallback content, that
29539 * is displayed if no transcluded content is provided.
29540 *
29541 * <example module="transcludeFallbackContentExample">
29542 * <file name="index.html">
29543 * <script>
29544 * angular.module('transcludeFallbackContentExample', [])
29545 * .directive('myButton', function(){
29546 *             return {
29547 *               restrict: 'E',
29548 *               transclude: true,
29549 *               scope: true,
29550 *               template: '<button style="cursor: pointer;">' +
29551 *                           '<ng-transclude>' +
29552 *                             '<b style="color: red;">Button1</b>' +
29553 *                           '</ng-transclude>' +
29554 *                         '</button>'
29555 *             };
29556 *         });
29557 * </script>
29558 * <!-- fallback button content -->
29559 * <my-button id="fallback"></my-button>
29560 * <!-- modified button content -->
29561 * <my-button id="modified">
29562 *   <i style="color: green;">Button2</i>
29563 * </my-button>
29564 * </file>
29565 * <file name="protractor.js" type="protractor">
29566 * it('should have different transclude element content', function() {
29567 *          expect(element(by.id('fallback')).getText()).toBe('Button1');
29568 *          expect(element(by.id('modified')).getText()).toBe('Button2');
29569 *        });
29570 * </file>
29571 * </example>
29572 *
29573 * @example
29574 * ### Multi-slot transclusion
29575 * This example demonstrates using multi-slot transclusion in a component directive.
29576 * <example name="multiSlotTranscludeExample" module="multiSlotTranscludeExample">
29577 *   <file name="index.html">
29578 *    <style>
29579 *      .title, .footer {
29580 *        background-color: gray
29581 *      }
29582 *    </style>
29583 *    <div ng-controller="ExampleController">
29584 *      <input ng-model="title" aria-label="title"> <br/>
29585 *      <textarea ng-model="text" aria-label="text"></textarea> <br/>
29586 *      <pane>
29587 *        <pane-title><a ng-href="{{link}}">{{title}}</a></pane-title>
29588 *        <pane-body><p>{{text}}</p></pane-body>
29589 *      </pane>
29590 *    </div>
29591 *   </file>
29592 *   <file name="app.js">
29593 *    angular.module('multiSlotTranscludeExample', [])
29594 *     .directive('pane', function(){
29595 *        return {
29596 *          restrict: 'E',
29597 *          transclude: {
29598 *            'title': '?paneTitle',
29599 *            'body': 'paneBody',
29600 *            'footer': '?paneFooter'
29601 *          },
29602 *          template: '<div style="border: 1px solid black;">' +
29603 *                      '<div class="title" ng-transclude="title">Fallback Title</div>' +
29604 *                      '<div ng-transclude="body"></div>' +
29605 *                      '<div class="footer" ng-transclude="footer">Fallback Footer</div>' +
29606 *                    '</div>'
29607 *        };
29608 *    })
29609 *    .controller('ExampleController', ['$scope', function($scope) {
29610 *      $scope.title = 'Lorem Ipsum';
29611 *      $scope.link = "https://google.com";
29612 *      $scope.text = 'Neque porro quisquam est qui dolorem ipsum quia dolor...';
29613 *    }]);
29614 *   </file>
29615 *   <file name="protractor.js" type="protractor">
29616 *      it('should have transcluded the title and the body', function() {
29617 *        var titleElement = element(by.model('title'));
29618 *        titleElement.clear();
29619 *        titleElement.sendKeys('TITLE');
29620 *        var textElement = element(by.model('text'));
29621 *        textElement.clear();
29622 *        textElement.sendKeys('TEXT');
29623 *        expect(element(by.css('.title')).getText()).toEqual('TITLE');
29624 *        expect(element(by.binding('text')).getText()).toEqual('TEXT');
29625 *        expect(element(by.css('.footer')).getText()).toEqual('Fallback Footer');
29626 *      });
29627 *   </file>
29628 * </example>
29629 */
29630var ngTranscludeMinErr = minErr('ngTransclude');
29631var ngTranscludeDirective = ngDirective({
29632  restrict: 'EAC',
29633  link: function($scope, $element, $attrs, controller, $transclude) {
29634
29635    if ($attrs.ngTransclude === $attrs.$attr.ngTransclude) {
29636      // If the attribute is of the form: `ng-transclude="ng-transclude"`
29637      // then treat it like the default
29638      $attrs.ngTransclude = '';
29639    }
29640
29641    function ngTranscludeCloneAttachFn(clone) {
29642      if (clone.length) {
29643        $element.empty();
29644        $element.append(clone);
29645      }
29646    }
29647
29648    if (!$transclude) {
29649      throw ngTranscludeMinErr('orphan',
29650       'Illegal use of ngTransclude directive in the template! ' +
29651       'No parent directive that requires a transclusion found. ' +
29652       'Element: {0}',
29653       startingTag($element));
29654    }
29655
29656    // If there is no slot name defined or the slot name is not optional
29657    // then transclude the slot
29658    var slotName = $attrs.ngTransclude || $attrs.ngTranscludeSlot;
29659    $transclude(ngTranscludeCloneAttachFn, null, slotName);
29660  }
29661});
29662
29663/**
29664 * @ngdoc directive
29665 * @name script
29666 * @restrict E
29667 *
29668 * @description
29669 * Load the content of a `<script>` element into {@link ng.$templateCache `$templateCache`}, so that the
29670 * template can be used by {@link ng.directive:ngInclude `ngInclude`},
29671 * {@link ngRoute.directive:ngView `ngView`}, or {@link guide/directive directives}. The type of the
29672 * `<script>` element must be specified as `text/ng-template`, and a cache name for the template must be
29673 * assigned through the element's `id`, which can then be used as a directive's `templateUrl`.
29674 *
29675 * @param {string} type Must be set to `'text/ng-template'`.
29676 * @param {string} id Cache name of the template.
29677 *
29678 * @example
29679  <example>
29680    <file name="index.html">
29681      <script type="text/ng-template" id="/tpl.html">
29682        Content of the template.
29683      </script>
29684
29685      <a ng-click="currentTpl='/tpl.html'" id="tpl-link">Load inlined template</a>
29686      <div id="tpl-content" ng-include src="currentTpl"></div>
29687    </file>
29688    <file name="protractor.js" type="protractor">
29689      it('should load template defined inside script tag', function() {
29690        element(by.css('#tpl-link')).click();
29691        expect(element(by.css('#tpl-content')).getText()).toMatch(/Content of the template/);
29692      });
29693    </file>
29694  </example>
29695 */
29696var scriptDirective = ['$templateCache', function($templateCache) {
29697  return {
29698    restrict: 'E',
29699    terminal: true,
29700    compile: function(element, attr) {
29701      if (attr.type == 'text/ng-template') {
29702        var templateUrl = attr.id,
29703            text = element[0].text;
29704
29705        $templateCache.put(templateUrl, text);
29706      }
29707    }
29708  };
29709}];
29710
29711var noopNgModelController = { $setViewValue: noop, $render: noop };
29712
29713function chromeHack(optionElement) {
29714  // Workaround for https://code.google.com/p/chromium/issues/detail?id=381459
29715  // Adding an <option selected="selected"> element to a <select required="required"> should
29716  // automatically select the new element
29717  if (optionElement[0].hasAttribute('selected')) {
29718    optionElement[0].selected = true;
29719  }
29720}
29721
29722/**
29723 * @ngdoc type
29724 * @name  select.SelectController
29725 * @description
29726 * The controller for the `<select>` directive. This provides support for reading
29727 * and writing the selected value(s) of the control and also coordinates dynamically
29728 * added `<option>` elements, perhaps by an `ngRepeat` directive.
29729 */
29730var SelectController =
29731        ['$element', '$scope', function($element, $scope) {
29732
29733  var self = this,
29734      optionsMap = new HashMap();
29735
29736  // If the ngModel doesn't get provided then provide a dummy noop version to prevent errors
29737  self.ngModelCtrl = noopNgModelController;
29738
29739  // The "unknown" option is one that is prepended to the list if the viewValue
29740  // does not match any of the options. When it is rendered the value of the unknown
29741  // option is '? XXX ?' where XXX is the hashKey of the value that is not known.
29742  //
29743  // We can't just jqLite('<option>') since jqLite is not smart enough
29744  // to create it in <select> and IE barfs otherwise.
29745  self.unknownOption = jqLite(document.createElement('option'));
29746  self.renderUnknownOption = function(val) {
29747    var unknownVal = '? ' + hashKey(val) + ' ?';
29748    self.unknownOption.val(unknownVal);
29749    $element.prepend(self.unknownOption);
29750    $element.val(unknownVal);
29751  };
29752
29753  $scope.$on('$destroy', function() {
29754    // disable unknown option so that we don't do work when the whole select is being destroyed
29755    self.renderUnknownOption = noop;
29756  });
29757
29758  self.removeUnknownOption = function() {
29759    if (self.unknownOption.parent()) self.unknownOption.remove();
29760  };
29761
29762
29763  // Read the value of the select control, the implementation of this changes depending
29764  // upon whether the select can have multiple values and whether ngOptions is at work.
29765  self.readValue = function readSingleValue() {
29766    self.removeUnknownOption();
29767    return $element.val();
29768  };
29769
29770
29771  // Write the value to the select control, the implementation of this changes depending
29772  // upon whether the select can have multiple values and whether ngOptions is at work.
29773  self.writeValue = function writeSingleValue(value) {
29774    if (self.hasOption(value)) {
29775      self.removeUnknownOption();
29776      $element.val(value);
29777      if (value === '') self.emptyOption.prop('selected', true); // to make IE9 happy
29778    } else {
29779      if (value == null && self.emptyOption) {
29780        self.removeUnknownOption();
29781        $element.val('');
29782      } else {
29783        self.renderUnknownOption(value);
29784      }
29785    }
29786  };
29787
29788
29789  // Tell the select control that an option, with the given value, has been added
29790  self.addOption = function(value, element) {
29791    // Skip comment nodes, as they only pollute the `optionsMap`
29792    if (element[0].nodeType === NODE_TYPE_COMMENT) return;
29793
29794    assertNotHasOwnProperty(value, '"option value"');
29795    if (value === '') {
29796      self.emptyOption = element;
29797    }
29798    var count = optionsMap.get(value) || 0;
29799    optionsMap.put(value, count + 1);
29800    self.ngModelCtrl.$render();
29801    chromeHack(element);
29802  };
29803
29804  // Tell the select control that an option, with the given value, has been removed
29805  self.removeOption = function(value) {
29806    var count = optionsMap.get(value);
29807    if (count) {
29808      if (count === 1) {
29809        optionsMap.remove(value);
29810        if (value === '') {
29811          self.emptyOption = undefined;
29812        }
29813      } else {
29814        optionsMap.put(value, count - 1);
29815      }
29816    }
29817  };
29818
29819  // Check whether the select control has an option matching the given value
29820  self.hasOption = function(value) {
29821    return !!optionsMap.get(value);
29822  };
29823
29824
29825  self.registerOption = function(optionScope, optionElement, optionAttrs, interpolateValueFn, interpolateTextFn) {
29826
29827    if (interpolateValueFn) {
29828      // The value attribute is interpolated
29829      var oldVal;
29830      optionAttrs.$observe('value', function valueAttributeObserveAction(newVal) {
29831        if (isDefined(oldVal)) {
29832          self.removeOption(oldVal);
29833        }
29834        oldVal = newVal;
29835        self.addOption(newVal, optionElement);
29836      });
29837    } else if (interpolateTextFn) {
29838      // The text content is interpolated
29839      optionScope.$watch(interpolateTextFn, function interpolateWatchAction(newVal, oldVal) {
29840        optionAttrs.$set('value', newVal);
29841        if (oldVal !== newVal) {
29842          self.removeOption(oldVal);
29843        }
29844        self.addOption(newVal, optionElement);
29845      });
29846    } else {
29847      // The value attribute is static
29848      self.addOption(optionAttrs.value, optionElement);
29849    }
29850
29851    optionElement.on('$destroy', function() {
29852      self.removeOption(optionAttrs.value);
29853      self.ngModelCtrl.$render();
29854    });
29855  };
29856}];
29857
29858/**
29859 * @ngdoc directive
29860 * @name select
29861 * @restrict E
29862 *
29863 * @description
29864 * HTML `SELECT` element with angular data-binding.
29865 *
29866 * The `select` directive is used together with {@link ngModel `ngModel`} to provide data-binding
29867 * between the scope and the `<select>` control (including setting default values).
29868 * It also handles dynamic `<option>` elements, which can be added using the {@link ngRepeat `ngRepeat}` or
29869 * {@link ngOptions `ngOptions`} directives.
29870 *
29871 * When an item in the `<select>` menu is selected, the value of the selected option will be bound
29872 * to the model identified by the `ngModel` directive. With static or repeated options, this is
29873 * the content of the `value` attribute or the textContent of the `<option>`, if the value attribute is missing.
29874 * If you want dynamic value attributes, you can use interpolation inside the value attribute.
29875 *
29876 * <div class="alert alert-warning">
29877 * Note that the value of a `select` directive used without `ngOptions` is always a string.
29878 * When the model needs to be bound to a non-string value, you must either explicitly convert it
29879 * using a directive (see example below) or use `ngOptions` to specify the set of options.
29880 * This is because an option element can only be bound to string values at present.
29881 * </div>
29882 *
29883 * If the viewValue of `ngModel` does not match any of the options, then the control
29884 * will automatically add an "unknown" option, which it then removes when the mismatch is resolved.
29885 *
29886 * Optionally, a single hard-coded `<option>` element, with the value set to an empty string, can
29887 * be nested into the `<select>` element. This element will then represent the `null` or "not selected"
29888 * option. See example below for demonstration.
29889 *
29890 * <div class="alert alert-info">
29891 * In many cases, `ngRepeat` can be used on `<option>` elements instead of {@link ng.directive:ngOptions
29892 * ngOptions} to achieve a similar result. However, `ngOptions` provides some benefits, such as
29893 * more flexibility in how the `<select>`'s model is assigned via the `select` **`as`** part of the
29894 * comprehension expression, and additionally in reducing memory and increasing speed by not creating
29895 * a new scope for each repeated instance.
29896 * </div>
29897 *
29898 *
29899 * @param {string} ngModel Assignable angular expression to data-bind to.
29900 * @param {string=} name Property name of the form under which the control is published.
29901 * @param {string=} multiple Allows multiple options to be selected. The selected values will be
29902 *     bound to the model as an array.
29903 * @param {string=} required Sets `required` validation error key if the value is not entered.
29904 * @param {string=} ngRequired Adds required attribute and required validation constraint to
29905 * the element when the ngRequired expression evaluates to true. Use ngRequired instead of required
29906 * when you want to data-bind to the required attribute.
29907 * @param {string=} ngChange Angular expression to be executed when selected option(s) changes due to user
29908 *    interaction with the select element.
29909 * @param {string=} ngOptions sets the options that the select is populated with and defines what is
29910 * set on the model on selection. See {@link ngOptions `ngOptions`}.
29911 *
29912 * @example
29913 * ### Simple `select` elements with static options
29914 *
29915 * <example name="static-select" module="staticSelect">
29916 * <file name="index.html">
29917 * <div ng-controller="ExampleController">
29918 *   <form name="myForm">
29919 *     <label for="singleSelect"> Single select: </label><br>
29920 *     <select name="singleSelect" ng-model="data.singleSelect">
29921 *       <option value="option-1">Option 1</option>
29922 *       <option value="option-2">Option 2</option>
29923 *     </select><br>
29924 *
29925 *     <label for="singleSelect"> Single select with "not selected" option and dynamic option values: </label><br>
29926 *     <select name="singleSelect" id="singleSelect" ng-model="data.singleSelect">
29927 *       <option value="">---Please select---</option> <!-- not selected / blank option -->
29928 *       <option value="{{data.option1}}">Option 1</option> <!-- interpolation -->
29929 *       <option value="option-2">Option 2</option>
29930 *     </select><br>
29931 *     <button ng-click="forceUnknownOption()">Force unknown option</button><br>
29932 *     <tt>singleSelect = {{data.singleSelect}}</tt>
29933 *
29934 *     <hr>
29935 *     <label for="multipleSelect"> Multiple select: </label><br>
29936 *     <select name="multipleSelect" id="multipleSelect" ng-model="data.multipleSelect" multiple>
29937 *       <option value="option-1">Option 1</option>
29938 *       <option value="option-2">Option 2</option>
29939 *       <option value="option-3">Option 3</option>
29940 *     </select><br>
29941 *     <tt>multipleSelect = {{data.multipleSelect}}</tt><br/>
29942 *   </form>
29943 * </div>
29944 * </file>
29945 * <file name="app.js">
29946 *  angular.module('staticSelect', [])
29947 *    .controller('ExampleController', ['$scope', function($scope) {
29948 *      $scope.data = {
29949 *       singleSelect: null,
29950 *       multipleSelect: [],
29951 *       option1: 'option-1',
29952 *      };
29953 *
29954 *      $scope.forceUnknownOption = function() {
29955 *        $scope.data.singleSelect = 'nonsense';
29956 *      };
29957 *   }]);
29958 * </file>
29959 *</example>
29960 *
29961 * ### Using `ngRepeat` to generate `select` options
29962 * <example name="ngrepeat-select" module="ngrepeatSelect">
29963 * <file name="index.html">
29964 * <div ng-controller="ExampleController">
29965 *   <form name="myForm">
29966 *     <label for="repeatSelect"> Repeat select: </label>
29967 *     <select name="repeatSelect" id="repeatSelect" ng-model="data.repeatSelect">
29968 *       <option ng-repeat="option in data.availableOptions" value="{{option.id}}">{{option.name}}</option>
29969 *     </select>
29970 *   </form>
29971 *   <hr>
29972 *   <tt>repeatSelect = {{data.repeatSelect}}</tt><br/>
29973 * </div>
29974 * </file>
29975 * <file name="app.js">
29976 *  angular.module('ngrepeatSelect', [])
29977 *    .controller('ExampleController', ['$scope', function($scope) {
29978 *      $scope.data = {
29979 *       repeatSelect: null,
29980 *       availableOptions: [
29981 *         {id: '1', name: 'Option A'},
29982 *         {id: '2', name: 'Option B'},
29983 *         {id: '3', name: 'Option C'}
29984 *       ],
29985 *      };
29986 *   }]);
29987 * </file>
29988 *</example>
29989 *
29990 *
29991 * ### Using `select` with `ngOptions` and setting a default value
29992 * See the {@link ngOptions ngOptions documentation} for more `ngOptions` usage examples.
29993 *
29994 * <example name="select-with-default-values" module="defaultValueSelect">
29995 * <file name="index.html">
29996 * <div ng-controller="ExampleController">
29997 *   <form name="myForm">
29998 *     <label for="mySelect">Make a choice:</label>
29999 *     <select name="mySelect" id="mySelect"
30000 *       ng-options="option.name for option in data.availableOptions track by option.id"
30001 *       ng-model="data.selectedOption"></select>
30002 *   </form>
30003 *   <hr>
30004 *   <tt>option = {{data.selectedOption}}</tt><br/>
30005 * </div>
30006 * </file>
30007 * <file name="app.js">
30008 *  angular.module('defaultValueSelect', [])
30009 *    .controller('ExampleController', ['$scope', function($scope) {
30010 *      $scope.data = {
30011 *       availableOptions: [
30012 *         {id: '1', name: 'Option A'},
30013 *         {id: '2', name: 'Option B'},
30014 *         {id: '3', name: 'Option C'}
30015 *       ],
30016 *       selectedOption: {id: '3', name: 'Option C'} //This sets the default value of the select in the ui
30017 *       };
30018 *   }]);
30019 * </file>
30020 *</example>
30021 *
30022 *
30023 * ### Binding `select` to a non-string value via `ngModel` parsing / formatting
30024 *
30025 * <example name="select-with-non-string-options" module="nonStringSelect">
30026 *   <file name="index.html">
30027 *     <select ng-model="model.id" convert-to-number>
30028 *       <option value="0">Zero</option>
30029 *       <option value="1">One</option>
30030 *       <option value="2">Two</option>
30031 *     </select>
30032 *     {{ model }}
30033 *   </file>
30034 *   <file name="app.js">
30035 *     angular.module('nonStringSelect', [])
30036 *       .run(function($rootScope) {
30037 *         $rootScope.model = { id: 2 };
30038 *       })
30039 *       .directive('convertToNumber', function() {
30040 *         return {
30041 *           require: 'ngModel',
30042 *           link: function(scope, element, attrs, ngModel) {
30043 *             ngModel.$parsers.push(function(val) {
30044 *               return parseInt(val, 10);
30045 *             });
30046 *             ngModel.$formatters.push(function(val) {
30047 *               return '' + val;
30048 *             });
30049 *           }
30050 *         };
30051 *       });
30052 *   </file>
30053 *   <file name="protractor.js" type="protractor">
30054 *     it('should initialize to model', function() {
30055 *       var select = element(by.css('select'));
30056 *       expect(element(by.model('model.id')).$('option:checked').getText()).toEqual('Two');
30057 *     });
30058 *   </file>
30059 * </example>
30060 *
30061 */
30062var selectDirective = function() {
30063
30064  return {
30065    restrict: 'E',
30066    require: ['select', '?ngModel'],
30067    controller: SelectController,
30068    priority: 1,
30069    link: {
30070      pre: selectPreLink,
30071      post: selectPostLink
30072    }
30073  };
30074
30075  function selectPreLink(scope, element, attr, ctrls) {
30076
30077      // if ngModel is not defined, we don't need to do anything
30078      var ngModelCtrl = ctrls[1];
30079      if (!ngModelCtrl) return;
30080
30081      var selectCtrl = ctrls[0];
30082
30083      selectCtrl.ngModelCtrl = ngModelCtrl;
30084
30085      // When the selected item(s) changes we delegate getting the value of the select control
30086      // to the `readValue` method, which can be changed if the select can have multiple
30087      // selected values or if the options are being generated by `ngOptions`
30088      element.on('change', function() {
30089        scope.$apply(function() {
30090          ngModelCtrl.$setViewValue(selectCtrl.readValue());
30091        });
30092      });
30093
30094      // If the select allows multiple values then we need to modify how we read and write
30095      // values from and to the control; also what it means for the value to be empty and
30096      // we have to add an extra watch since ngModel doesn't work well with arrays - it
30097      // doesn't trigger rendering if only an item in the array changes.
30098      if (attr.multiple) {
30099
30100        // Read value now needs to check each option to see if it is selected
30101        selectCtrl.readValue = function readMultipleValue() {
30102          var array = [];
30103          forEach(element.find('option'), function(option) {
30104            if (option.selected) {
30105              array.push(option.value);
30106            }
30107          });
30108          return array;
30109        };
30110
30111        // Write value now needs to set the selected property of each matching option
30112        selectCtrl.writeValue = function writeMultipleValue(value) {
30113          var items = new HashMap(value);
30114          forEach(element.find('option'), function(option) {
30115            option.selected = isDefined(items.get(option.value));
30116          });
30117        };
30118
30119        // we have to do it on each watch since ngModel watches reference, but
30120        // we need to work of an array, so we need to see if anything was inserted/removed
30121        var lastView, lastViewRef = NaN;
30122        scope.$watch(function selectMultipleWatch() {
30123          if (lastViewRef === ngModelCtrl.$viewValue && !equals(lastView, ngModelCtrl.$viewValue)) {
30124            lastView = shallowCopy(ngModelCtrl.$viewValue);
30125            ngModelCtrl.$render();
30126          }
30127          lastViewRef = ngModelCtrl.$viewValue;
30128        });
30129
30130        // If we are a multiple select then value is now a collection
30131        // so the meaning of $isEmpty changes
30132        ngModelCtrl.$isEmpty = function(value) {
30133          return !value || value.length === 0;
30134        };
30135
30136      }
30137    }
30138
30139    function selectPostLink(scope, element, attrs, ctrls) {
30140      // if ngModel is not defined, we don't need to do anything
30141      var ngModelCtrl = ctrls[1];
30142      if (!ngModelCtrl) return;
30143
30144      var selectCtrl = ctrls[0];
30145
30146      // We delegate rendering to the `writeValue` method, which can be changed
30147      // if the select can have multiple selected values or if the options are being
30148      // generated by `ngOptions`.
30149      // This must be done in the postLink fn to prevent $render to be called before
30150      // all nodes have been linked correctly.
30151      ngModelCtrl.$render = function() {
30152        selectCtrl.writeValue(ngModelCtrl.$viewValue);
30153      };
30154    }
30155};
30156
30157
30158// The option directive is purely designed to communicate the existence (or lack of)
30159// of dynamically created (and destroyed) option elements to their containing select
30160// directive via its controller.
30161var optionDirective = ['$interpolate', function($interpolate) {
30162  return {
30163    restrict: 'E',
30164    priority: 100,
30165    compile: function(element, attr) {
30166      if (isDefined(attr.value)) {
30167        // If the value attribute is defined, check if it contains an interpolation
30168        var interpolateValueFn = $interpolate(attr.value, true);
30169      } else {
30170        // If the value attribute is not defined then we fall back to the
30171        // text content of the option element, which may be interpolated
30172        var interpolateTextFn = $interpolate(element.text(), true);
30173        if (!interpolateTextFn) {
30174          attr.$set('value', element.text());
30175        }
30176      }
30177
30178      return function(scope, element, attr) {
30179        // This is an optimization over using ^^ since we don't want to have to search
30180        // all the way to the root of the DOM for every single option element
30181        var selectCtrlName = '$selectController',
30182            parent = element.parent(),
30183            selectCtrl = parent.data(selectCtrlName) ||
30184              parent.parent().data(selectCtrlName); // in case we are in optgroup
30185
30186        if (selectCtrl) {
30187          selectCtrl.registerOption(scope, element, attr, interpolateValueFn, interpolateTextFn);
30188        }
30189      };
30190    }
30191  };
30192}];
30193
30194var styleDirective = valueFn({
30195  restrict: 'E',
30196  terminal: false
30197});
30198
30199/**
30200 * @ngdoc directive
30201 * @name ngRequired
30202 *
30203 * @description
30204 *
30205 * ngRequired adds the required {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.
30206 * It is most often used for {@link input `input`} and {@link select `select`} controls, but can also be
30207 * applied to custom controls.
30208 *
30209 * The directive sets the `required` attribute on the element if the Angular expression inside
30210 * `ngRequired` evaluates to true. A special directive for setting `required` is necessary because we
30211 * cannot use interpolation inside `required`. See the {@link guide/interpolation interpolation guide}
30212 * for more info.
30213 *
30214 * The validator will set the `required` error key to true if the `required` attribute is set and
30215 * calling {@link ngModel.NgModelController#$isEmpty `NgModelController.$isEmpty`} with the
30216 * {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`} returns `true`. For example, the
30217 * `$isEmpty()` implementation for `input[text]` checks the length of the `$viewValue`. When developing
30218 * custom controls, `$isEmpty()` can be overwritten to account for a $viewValue that is not string-based.
30219 *
30220 * @example
30221 * <example name="ngRequiredDirective" module="ngRequiredExample">
30222 *   <file name="index.html">
30223 *     <script>
30224 *       angular.module('ngRequiredExample', [])
30225 *         .controller('ExampleController', ['$scope', function($scope) {
30226 *           $scope.required = true;
30227 *         }]);
30228 *     </script>
30229 *     <div ng-controller="ExampleController">
30230 *       <form name="form">
30231 *         <label for="required">Toggle required: </label>
30232 *         <input type="checkbox" ng-model="required" id="required" />
30233 *         <br>
30234 *         <label for="input">This input must be filled if `required` is true: </label>
30235 *         <input type="text" ng-model="model" id="input" name="input" ng-required="required" /><br>
30236 *         <hr>
30237 *         required error set? = <code>{{form.input.$error.required}}</code><br>
30238 *         model = <code>{{model}}</code>
30239 *       </form>
30240 *     </div>
30241 *   </file>
30242 *   <file name="protractor.js" type="protractor">
30243       var required = element(by.binding('form.input.$error.required'));
30244       var model = element(by.binding('model'));
30245       var input = element(by.id('input'));
30246
30247       it('should set the required error', function() {
30248         expect(required.getText()).toContain('true');
30249
30250         input.sendKeys('123');
30251         expect(required.getText()).not.toContain('true');
30252         expect(model.getText()).toContain('123');
30253       });
30254 *   </file>
30255 * </example>
30256 */
30257var requiredDirective = function() {
30258  return {
30259    restrict: 'A',
30260    require: '?ngModel',
30261    link: function(scope, elm, attr, ctrl) {
30262      if (!ctrl) return;
30263      attr.required = true; // force truthy in case we are on non input element
30264
30265      ctrl.$validators.required = function(modelValue, viewValue) {
30266        return !attr.required || !ctrl.$isEmpty(viewValue);
30267      };
30268
30269      attr.$observe('required', function() {
30270        ctrl.$validate();
30271      });
30272    }
30273  };
30274};
30275
30276/**
30277 * @ngdoc directive
30278 * @name ngPattern
30279 *
30280 * @description
30281 *
30282 * ngPattern adds the pattern {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.
30283 * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.
30284 *
30285 * The validator sets the `pattern` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}
30286 * does not match a RegExp which is obtained by evaluating the Angular expression given in the
30287 * `ngPattern` attribute value:
30288 * * If the expression evaluates to a RegExp object, then this is used directly.
30289 * * If the expression evaluates to a string, then it will be converted to a RegExp after wrapping it
30290 * in `^` and `$` characters. For instance, `"abc"` will be converted to `new RegExp('^abc$')`.
30291 *
30292 * <div class="alert alert-info">
30293 * **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to
30294 * start at the index of the last search's match, thus not taking the whole input value into
30295 * account.
30296 * </div>
30297 *
30298 * <div class="alert alert-info">
30299 * **Note:** This directive is also added when the plain `pattern` attribute is used, with two
30300 * differences:
30301 * <ol>
30302 *   <li>
30303 *     `ngPattern` does not set the `pattern` attribute and therefore HTML5 constraint validation is
30304 *     not available.
30305 *   </li>
30306 *   <li>
30307 *     The `ngPattern` attribute must be an expression, while the `pattern` value must be
30308 *     interpolated.
30309 *   </li>
30310 * </ol>
30311 * </div>
30312 *
30313 * @example
30314 * <example name="ngPatternDirective" module="ngPatternExample">
30315 *   <file name="index.html">
30316 *     <script>
30317 *       angular.module('ngPatternExample', [])
30318 *         .controller('ExampleController', ['$scope', function($scope) {
30319 *           $scope.regex = '\\d+';
30320 *         }]);
30321 *     </script>
30322 *     <div ng-controller="ExampleController">
30323 *       <form name="form">
30324 *         <label for="regex">Set a pattern (regex string): </label>
30325 *         <input type="text" ng-model="regex" id="regex" />
30326 *         <br>
30327 *         <label for="input">This input is restricted by the current pattern: </label>
30328 *         <input type="text" ng-model="model" id="input" name="input" ng-pattern="regex" /><br>
30329 *         <hr>
30330 *         input valid? = <code>{{form.input.$valid}}</code><br>
30331 *         model = <code>{{model}}</code>
30332 *       </form>
30333 *     </div>
30334 *   </file>
30335 *   <file name="protractor.js" type="protractor">
30336       var model = element(by.binding('model'));
30337       var input = element(by.id('input'));
30338
30339       it('should validate the input with the default pattern', function() {
30340         input.sendKeys('aaa');
30341         expect(model.getText()).not.toContain('aaa');
30342
30343         input.clear().then(function() {
30344           input.sendKeys('123');
30345           expect(model.getText()).toContain('123');
30346         });
30347       });
30348 *   </file>
30349 * </example>
30350 */
30351var patternDirective = function() {
30352  return {
30353    restrict: 'A',
30354    require: '?ngModel',
30355    link: function(scope, elm, attr, ctrl) {
30356      if (!ctrl) return;
30357
30358      var regexp, patternExp = attr.ngPattern || attr.pattern;
30359      attr.$observe('pattern', function(regex) {
30360        if (isString(regex) && regex.length > 0) {
30361          regex = new RegExp('^' + regex + '$');
30362        }
30363
30364        if (regex && !regex.test) {
30365          throw minErr('ngPattern')('noregexp',
30366            'Expected {0} to be a RegExp but was {1}. Element: {2}', patternExp,
30367            regex, startingTag(elm));
30368        }
30369
30370        regexp = regex || undefined;
30371        ctrl.$validate();
30372      });
30373
30374      ctrl.$validators.pattern = function(modelValue, viewValue) {
30375        // HTML5 pattern constraint validates the input value, so we validate the viewValue
30376        return ctrl.$isEmpty(viewValue) || isUndefined(regexp) || regexp.test(viewValue);
30377      };
30378    }
30379  };
30380};
30381
30382/**
30383 * @ngdoc directive
30384 * @name ngMaxlength
30385 *
30386 * @description
30387 *
30388 * ngMaxlength adds the maxlength {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.
30389 * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.
30390 *
30391 * The validator sets the `maxlength` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}
30392 * is longer than the integer obtained by evaluating the Angular expression given in the
30393 * `ngMaxlength` attribute value.
30394 *
30395 * <div class="alert alert-info">
30396 * **Note:** This directive is also added when the plain `maxlength` attribute is used, with two
30397 * differences:
30398 * <ol>
30399 *   <li>
30400 *     `ngMaxlength` does not set the `maxlength` attribute and therefore HTML5 constraint
30401 *     validation is not available.
30402 *   </li>
30403 *   <li>
30404 *     The `ngMaxlength` attribute must be an expression, while the `maxlength` value must be
30405 *     interpolated.
30406 *   </li>
30407 * </ol>
30408 * </div>
30409 *
30410 * @example
30411 * <example name="ngMaxlengthDirective" module="ngMaxlengthExample">
30412 *   <file name="index.html">
30413 *     <script>
30414 *       angular.module('ngMaxlengthExample', [])
30415 *         .controller('ExampleController', ['$scope', function($scope) {
30416 *           $scope.maxlength = 5;
30417 *         }]);
30418 *     </script>
30419 *     <div ng-controller="ExampleController">
30420 *       <form name="form">
30421 *         <label for="maxlength">Set a maxlength: </label>
30422 *         <input type="number" ng-model="maxlength" id="maxlength" />
30423 *         <br>
30424 *         <label for="input">This input is restricted by the current maxlength: </label>
30425 *         <input type="text" ng-model="model" id="input" name="input" ng-maxlength="maxlength" /><br>
30426 *         <hr>
30427 *         input valid? = <code>{{form.input.$valid}}</code><br>
30428 *         model = <code>{{model}}</code>
30429 *       </form>
30430 *     </div>
30431 *   </file>
30432 *   <file name="protractor.js" type="protractor">
30433       var model = element(by.binding('model'));
30434       var input = element(by.id('input'));
30435
30436       it('should validate the input with the default maxlength', function() {
30437         input.sendKeys('abcdef');
30438         expect(model.getText()).not.toContain('abcdef');
30439
30440         input.clear().then(function() {
30441           input.sendKeys('abcde');
30442           expect(model.getText()).toContain('abcde');
30443         });
30444       });
30445 *   </file>
30446 * </example>
30447 */
30448var maxlengthDirective = function() {
30449  return {
30450    restrict: 'A',
30451    require: '?ngModel',
30452    link: function(scope, elm, attr, ctrl) {
30453      if (!ctrl) return;
30454
30455      var maxlength = -1;
30456      attr.$observe('maxlength', function(value) {
30457        var intVal = toInt(value);
30458        maxlength = isNaN(intVal) ? -1 : intVal;
30459        ctrl.$validate();
30460      });
30461      ctrl.$validators.maxlength = function(modelValue, viewValue) {
30462        return (maxlength < 0) || ctrl.$isEmpty(viewValue) || (viewValue.length <= maxlength);
30463      };
30464    }
30465  };
30466};
30467
30468/**
30469 * @ngdoc directive
30470 * @name ngMinlength
30471 *
30472 * @description
30473 *
30474 * ngMinlength adds the minlength {@link ngModel.NgModelController#$validators `validator`} to {@link ngModel `ngModel`}.
30475 * It is most often used for text-based {@link input `input`} controls, but can also be applied to custom text-based controls.
30476 *
30477 * The validator sets the `minlength` error key if the {@link ngModel.NgModelController#$viewValue `ngModel.$viewValue`}
30478 * is shorter than the integer obtained by evaluating the Angular expression given in the
30479 * `ngMinlength` attribute value.
30480 *
30481 * <div class="alert alert-info">
30482 * **Note:** This directive is also added when the plain `minlength` attribute is used, with two
30483 * differences:
30484 * <ol>
30485 *   <li>
30486 *     `ngMinlength` does not set the `minlength` attribute and therefore HTML5 constraint
30487 *     validation is not available.
30488 *   </li>
30489 *   <li>
30490 *     The `ngMinlength` value must be an expression, while the `minlength` value must be
30491 *     interpolated.
30492 *   </li>
30493 * </ol>
30494 * </div>
30495 *
30496 * @example
30497 * <example name="ngMinlengthDirective" module="ngMinlengthExample">
30498 *   <file name="index.html">
30499 *     <script>
30500 *       angular.module('ngMinlengthExample', [])
30501 *         .controller('ExampleController', ['$scope', function($scope) {
30502 *           $scope.minlength = 3;
30503 *         }]);
30504 *     </script>
30505 *     <div ng-controller="ExampleController">
30506 *       <form name="form">
30507 *         <label for="minlength">Set a minlength: </label>
30508 *         <input type="number" ng-model="minlength" id="minlength" />
30509 *         <br>
30510 *         <label for="input">This input is restricted by the current minlength: </label>
30511 *         <input type="text" ng-model="model" id="input" name="input" ng-minlength="minlength" /><br>
30512 *         <hr>
30513 *         input valid? = <code>{{form.input.$valid}}</code><br>
30514 *         model = <code>{{model}}</code>
30515 *       </form>
30516 *     </div>
30517 *   </file>
30518 *   <file name="protractor.js" type="protractor">
30519       var model = element(by.binding('model'));
30520       var input = element(by.id('input'));
30521
30522       it('should validate the input with the default minlength', function() {
30523         input.sendKeys('ab');
30524         expect(model.getText()).not.toContain('ab');
30525
30526         input.sendKeys('abc');
30527         expect(model.getText()).toContain('abc');
30528       });
30529 *   </file>
30530 * </example>
30531 */
30532var minlengthDirective = function() {
30533  return {
30534    restrict: 'A',
30535    require: '?ngModel',
30536    link: function(scope, elm, attr, ctrl) {
30537      if (!ctrl) return;
30538
30539      var minlength = 0;
30540      attr.$observe('minlength', function(value) {
30541        minlength = toInt(value) || 0;
30542        ctrl.$validate();
30543      });
30544      ctrl.$validators.minlength = function(modelValue, viewValue) {
30545        return ctrl.$isEmpty(viewValue) || viewValue.length >= minlength;
30546      };
30547    }
30548  };
30549};
30550
30551if (window.angular.bootstrap) {
30552  //AngularJS is already loaded, so we can return here...
30553  if (window.console) {
30554    console.log('WARNING: Tried to load angular more than once.');
30555  }
30556  return;
30557}
30558
30559//try to bind to jquery now so that one can write jqLite(document).ready()
30560//but we will rebind on bootstrap again.
30561bindJQuery();
30562
30563publishExternalAPI(angular);
30564
30565angular.module("ngLocale", [], ["$provide", function($provide) {
30566var PLURAL_CATEGORY = {ZERO: "zero", ONE: "one", TWO: "two", FEW: "few", MANY: "many", OTHER: "other"};
30567function getDecimals(n) {
30568  n = n + '';
30569  var i = n.indexOf('.');
30570  return (i == -1) ? 0 : n.length - i - 1;
30571}
30572
30573function getVF(n, opt_precision) {
30574  var v = opt_precision;
30575
30576  if (undefined === v) {
30577    v = Math.min(getDecimals(n), 3);
30578  }
30579
30580  var base = Math.pow(10, v);
30581  var f = ((n * base) | 0) % base;
30582  return {v: v, f: f};
30583}
30584
30585$provide.value("$locale", {
30586  "DATETIME_FORMATS": {
30587    "AMPMS": [
30588      "AM",
30589      "PM"
30590    ],
30591    "DAY": [
30592      "Sunday",
30593      "Monday",
30594      "Tuesday",
30595      "Wednesday",
30596      "Thursday",
30597      "Friday",
30598      "Saturday"
30599    ],
30600    "ERANAMES": [
30601      "Before Christ",
30602      "Anno Domini"
30603    ],
30604    "ERAS": [
30605      "BC",
30606      "AD"
30607    ],
30608    "FIRSTDAYOFWEEK": 6,
30609    "MONTH": [
30610      "January",
30611      "February",
30612      "March",
30613      "April",
30614      "May",
30615      "June",
30616      "July",
30617      "August",
30618      "September",
30619      "October",
30620      "November",
30621      "December"
30622    ],
30623    "SHORTDAY": [
30624      "Sun",
30625      "Mon",
30626      "Tue",
30627      "Wed",
30628      "Thu",
30629      "Fri",
30630      "Sat"
30631    ],
30632    "SHORTMONTH": [
30633      "Jan",
30634      "Feb",
30635      "Mar",
30636      "Apr",
30637      "May",
30638      "Jun",
30639      "Jul",
30640      "Aug",
30641      "Sep",
30642      "Oct",
30643      "Nov",
30644      "Dec"
30645    ],
30646    "STANDALONEMONTH": [
30647      "January",
30648      "February",
30649      "March",
30650      "April",
30651      "May",
30652      "June",
30653      "July",
30654      "August",
30655      "September",
30656      "October",
30657      "November",
30658      "December"
30659    ],
30660    "WEEKENDRANGE": [
30661      5,
30662      6
30663    ],
30664    "fullDate": "EEEE, MMMM d, y",
30665    "longDate": "MMMM d, y",
30666    "medium": "MMM d, y h:mm:ss a",
30667    "mediumDate": "MMM d, y",
30668    "mediumTime": "h:mm:ss a",
30669    "short": "M/d/yy h:mm a",
30670    "shortDate": "M/d/yy",
30671    "shortTime": "h:mm a"
30672  },
30673  "NUMBER_FORMATS": {
30674    "CURRENCY_SYM": "$",
30675    "DECIMAL_SEP": ".",
30676    "GROUP_SEP": ",",
30677    "PATTERNS": [
30678      {
30679        "gSize": 3,
30680        "lgSize": 3,
30681        "maxFrac": 3,
30682        "minFrac": 0,
30683        "minInt": 1,
30684        "negPre": "-",
30685        "negSuf": "",
30686        "posPre": "",
30687        "posSuf": ""
30688      },
30689      {
30690        "gSize": 3,
30691        "lgSize": 3,
30692        "maxFrac": 2,
30693        "minFrac": 2,
30694        "minInt": 1,
30695        "negPre": "-\u00a4",
30696        "negSuf": "",
30697        "posPre": "\u00a4",
30698        "posSuf": ""
30699      }
30700    ]
30701  },
30702  "id": "en-us",
30703  "localeID": "en_US",
30704  "pluralCat": function(n, opt_precision) {  var i = n | 0;  var vf = getVF(n, opt_precision);  if (i == 1 && vf.v == 0) {    return PLURAL_CATEGORY.ONE;  }  return PLURAL_CATEGORY.OTHER;}
30705});
30706}]);
30707
30708  jqLite(document).ready(function() {
30709    angularInit(document, bootstrap);
30710  });
30711
30712})(window, document);
30713
30714!window.angular.$$csp().noInlineStyle && window.angular.element(document.head).prepend('<style type="text/css">@charset "UTF-8";[ng\\:cloak],[ng-cloak],[data-ng-cloak],[x-ng-cloak],.ng-cloak,.x-ng-cloak,.ng-hide:not(.ng-hide-animate){display:none !important;}ng\\:form{display:block;}.ng-animate-shim{visibility:hidden;}.ng-anchor{position:absolute;}</style>');