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commonroutesApp/www/lib/angular-material/modules/js/datepicker/datepicker.js
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   1/*!
   2 * Angular Material Design
   3 * https://github.com/angular/material
   4 * @license MIT
   5 * v1.1.1
   6 */
   7(function( window, angular, undefined ){
   8"use strict";
   9
  10/**
  11 * @ngdoc module
  12 * @name material.components.datepicker
  13 * @description Module for the datepicker component.
  14 */
  15
  16angular.module('material.components.datepicker', [
  17  'material.core',
  18  'material.components.icon',
  19  'material.components.virtualRepeat'
  20]);
  21
  22(function() {
  23  'use strict';
  24
  25  /**
  26   * @ngdoc directive
  27   * @name mdCalendar
  28   * @module material.components.datepicker
  29   *
  30   * @param {Date} ng-model The component's model. Should be a Date object.
  31   * @param {Date=} md-min-date Expression representing the minimum date.
  32   * @param {Date=} md-max-date Expression representing the maximum date.
  33   * @param {(function(Date): boolean)=} md-date-filter Function expecting a date and returning a boolean whether it can be selected or not.
  34   *
  35   * @description
  36   * `<md-calendar>` is a component that renders a calendar that can be used to select a date.
  37   * It is a part of the `<md-datepicker` pane, however it can also be used on it's own.
  38   *
  39   * @usage
  40   *
  41   * <hljs lang="html">
  42   *   <md-calendar ng-model="birthday"></md-calendar>
  43   * </hljs>
  44   */
  45  CalendarCtrl.$inject = ["$element", "$scope", "$$mdDateUtil", "$mdUtil", "$mdConstant", "$mdTheming", "$$rAF", "$attrs", "$mdDateLocale"];
  46  angular.module('material.components.datepicker')
  47    .directive('mdCalendar', calendarDirective);
  48
  49  // POST RELEASE
  50  // TODO(jelbourn): Mac Cmd + left / right == Home / End
  51  // TODO(jelbourn): Refactor month element creation to use cloneNode (performance).
  52  // TODO(jelbourn): Define virtual scrolling constants (compactness) users can override.
  53  // TODO(jelbourn): Animated month transition on ng-model change (virtual-repeat)
  54  // TODO(jelbourn): Scroll snapping (virtual repeat)
  55  // TODO(jelbourn): Remove superfluous row from short months (virtual-repeat)
  56  // TODO(jelbourn): Month headers stick to top when scrolling.
  57  // TODO(jelbourn): Previous month opacity is lowered when partially scrolled out of view.
  58  // TODO(jelbourn): Support md-calendar standalone on a page (as a tabstop w/ aria-live
  59  //     announcement and key handling).
  60  // Read-only calendar (not just date-picker).
  61
  62  function calendarDirective() {
  63    return {
  64      template: function(tElement, tAttr) {
  65        // TODO(crisbeto): This is a workaround that allows the calendar to work, without
  66        // a datepicker, until issue #8585 gets resolved. It can safely be removed
  67        // afterwards. This ensures that the virtual repeater scrolls to the proper place on load by
  68        // deferring the execution until the next digest. It's necessary only if the calendar is used
  69        // without a datepicker, otherwise it's already wrapped in an ngIf.
  70        var extraAttrs = tAttr.hasOwnProperty('ngIf') ? '' : 'ng-if="calendarCtrl.isInitialized"';
  71        var template = '' +
  72          '<div ng-switch="calendarCtrl.currentView" ' + extraAttrs + '>' +
  73            '<md-calendar-year ng-switch-when="year"></md-calendar-year>' +
  74            '<md-calendar-month ng-switch-default></md-calendar-month>' +
  75          '</div>';
  76
  77        return template;
  78      },
  79      scope: {
  80        minDate: '=mdMinDate',
  81        maxDate: '=mdMaxDate',
  82        dateFilter: '=mdDateFilter',
  83        _currentView: '@mdCurrentView'
  84      },
  85      require: ['ngModel', 'mdCalendar'],
  86      controller: CalendarCtrl,
  87      controllerAs: 'calendarCtrl',
  88      bindToController: true,
  89      link: function(scope, element, attrs, controllers) {
  90        var ngModelCtrl = controllers[0];
  91        var mdCalendarCtrl = controllers[1];
  92        mdCalendarCtrl.configureNgModel(ngModelCtrl);
  93      }
  94    };
  95  }
  96
  97  /**
  98   * Occasionally the hideVerticalScrollbar method might read an element's
  99   * width as 0, because it hasn't been laid out yet. This value will be used
 100   * as a fallback, in order to prevent scenarios where the element's width
 101   * would otherwise have been set to 0. This value is the "usual" width of a
 102   * calendar within a floating calendar pane.
 103   */
 104  var FALLBACK_WIDTH = 340;
 105
 106  /** Next identifier for calendar instance. */
 107  var nextUniqueId = 0;
 108
 109  /**
 110   * Controller for the mdCalendar component.
 111   * ngInject @constructor
 112   */
 113  function CalendarCtrl($element, $scope, $$mdDateUtil, $mdUtil,
 114    $mdConstant, $mdTheming, $$rAF, $attrs, $mdDateLocale) {
 115
 116    $mdTheming($element);
 117
 118    /** @final {!angular.JQLite} */
 119    this.$element = $element;
 120
 121    /** @final {!angular.Scope} */
 122    this.$scope = $scope;
 123
 124    /** @final */
 125    this.dateUtil = $$mdDateUtil;
 126
 127    /** @final */
 128    this.$mdUtil = $mdUtil;
 129
 130    /** @final */
 131    this.keyCode = $mdConstant.KEY_CODE;
 132
 133    /** @final */
 134    this.$$rAF = $$rAF;
 135
 136    /** @final {Date} */
 137    this.today = this.dateUtil.createDateAtMidnight();
 138
 139    /** @type {!angular.NgModelController} */
 140    this.ngModelCtrl = null;
 141
 142    /**
 143     * The currently visible calendar view. Note the prefix on the scope value,
 144     * which is necessary, because the datepicker seems to reset the real one value if the
 145     * calendar is open, but the value on the datepicker's scope is empty.
 146     * @type {String}
 147     */
 148    this.currentView = this._currentView || 'month';
 149
 150    /** @type {String} Class applied to the selected date cell. */
 151    this.SELECTED_DATE_CLASS = 'md-calendar-selected-date';
 152
 153    /** @type {String} Class applied to the cell for today. */
 154    this.TODAY_CLASS = 'md-calendar-date-today';
 155
 156    /** @type {String} Class applied to the focused cell. */
 157    this.FOCUSED_DATE_CLASS = 'md-focus';
 158
 159    /** @final {number} Unique ID for this calendar instance. */
 160    this.id = nextUniqueId++;
 161
 162    /**
 163     * The date that is currently focused or showing in the calendar. This will initially be set
 164     * to the ng-model value if set, otherwise to today. It will be updated as the user navigates
 165     * to other months. The cell corresponding to the displayDate does not necesarily always have
 166     * focus in the document (such as for cases when the user is scrolling the calendar).
 167     * @type {Date}
 168     */
 169    this.displayDate = null;
 170
 171    /**
 172     * The selected date. Keep track of this separately from the ng-model value so that we
 173     * can know, when the ng-model value changes, what the previous value was before it's updated
 174     * in the component's UI.
 175     *
 176     * @type {Date}
 177     */
 178    this.selectedDate = null;
 179
 180    /**
 181     * The first date that can be rendered by the calendar. The default is taken
 182     * from the mdDateLocale provider and is limited by the mdMinDate.
 183     * @type {Date}
 184     */
 185    this.firstRenderableDate = null;
 186
 187    /**
 188     * The last date that can be rendered by the calendar. The default comes
 189     * from the mdDateLocale provider and is limited by the maxDate.
 190     * @type {Date}
 191     */
 192    this.lastRenderableDate = null;
 193
 194    /**
 195     * Used to toggle initialize the root element in the next digest.
 196     * @type {Boolean}
 197     */
 198    this.isInitialized = false;
 199
 200    /**
 201     * Cache for the  width of the element without a scrollbar. Used to hide the scrollbar later on
 202     * and to avoid extra reflows when switching between views.
 203     * @type {Number}
 204     */
 205    this.width = 0;
 206
 207    /**
 208     * Caches the width of the scrollbar in order to be used when hiding it and to avoid extra reflows.
 209     * @type {Number}
 210     */
 211    this.scrollbarWidth = 0;
 212
 213    // Unless the user specifies so, the calendar should not be a tab stop.
 214    // This is necessary because ngAria might add a tabindex to anything with an ng-model
 215    // (based on whether or not the user has turned that particular feature on/off).
 216    if (!$attrs.tabindex) {
 217      $element.attr('tabindex', '-1');
 218    }
 219
 220    var boundKeyHandler = angular.bind(this, this.handleKeyEvent);
 221
 222    // Bind the keydown handler to the body, in order to handle cases where the focused
 223    // element gets removed from the DOM and stops propagating click events.
 224    angular.element(document.body).on('keydown', boundKeyHandler);
 225
 226    $scope.$on('$destroy', function() {
 227      angular.element(document.body).off('keydown', boundKeyHandler);
 228    });
 229
 230    if (this.minDate && this.minDate > $mdDateLocale.firstRenderableDate) {
 231      this.firstRenderableDate = this.minDate;
 232    } else {
 233      this.firstRenderableDate = $mdDateLocale.firstRenderableDate;
 234    }
 235
 236    if (this.maxDate && this.maxDate < $mdDateLocale.lastRenderableDate) {
 237      this.lastRenderableDate = this.maxDate;
 238    } else {
 239      this.lastRenderableDate = $mdDateLocale.lastRenderableDate;
 240    }
 241  }
 242
 243  /**
 244   * Sets up the controller's reference to ngModelController.
 245   * @param {!angular.NgModelController} ngModelCtrl
 246   */
 247  CalendarCtrl.prototype.configureNgModel = function(ngModelCtrl) {
 248    var self = this;
 249
 250    self.ngModelCtrl = ngModelCtrl;
 251
 252    self.$mdUtil.nextTick(function() {
 253      self.isInitialized = true;
 254    });
 255
 256    ngModelCtrl.$render = function() {
 257      var value = this.$viewValue;
 258
 259      // Notify the child scopes of any changes.
 260      self.$scope.$broadcast('md-calendar-parent-changed', value);
 261
 262      // Set up the selectedDate if it hasn't been already.
 263      if (!self.selectedDate) {
 264        self.selectedDate = value;
 265      }
 266
 267      // Also set up the displayDate.
 268      if (!self.displayDate) {
 269        self.displayDate = self.selectedDate || self.today;
 270      }
 271    };
 272  };
 273
 274  /**
 275   * Sets the ng-model value for the calendar and emits a change event.
 276   * @param {Date} date
 277   */
 278  CalendarCtrl.prototype.setNgModelValue = function(date) {
 279    var value = this.dateUtil.createDateAtMidnight(date);
 280    this.focus(value);
 281    this.$scope.$emit('md-calendar-change', value);
 282    this.ngModelCtrl.$setViewValue(value);
 283    this.ngModelCtrl.$render();
 284    return value;
 285  };
 286
 287  /**
 288   * Sets the current view that should be visible in the calendar
 289   * @param {string} newView View name to be set.
 290   * @param {number|Date} time Date object or a timestamp for the new display date.
 291   */
 292  CalendarCtrl.prototype.setCurrentView = function(newView, time) {
 293    var self = this;
 294
 295    self.$mdUtil.nextTick(function() {
 296      self.currentView = newView;
 297
 298      if (time) {
 299        self.displayDate = angular.isDate(time) ? time : new Date(time);
 300      }
 301    });
 302  };
 303
 304  /**
 305   * Focus the cell corresponding to the given date.
 306   * @param {Date} date The date to be focused.
 307   */
 308  CalendarCtrl.prototype.focus = function(date) {
 309    if (this.dateUtil.isValidDate(date)) {
 310      var previousFocus = this.$element[0].querySelector('.md-focus');
 311      if (previousFocus) {
 312        previousFocus.classList.remove(this.FOCUSED_DATE_CLASS);
 313      }
 314
 315      var cellId = this.getDateId(date, this.currentView);
 316      var cell = document.getElementById(cellId);
 317      if (cell) {
 318        cell.classList.add(this.FOCUSED_DATE_CLASS);
 319        cell.focus();
 320        this.displayDate = date;
 321      }
 322    } else {
 323      var rootElement = this.$element[0].querySelector('[ng-switch]');
 324
 325      if (rootElement) {
 326        rootElement.focus();
 327      }
 328    }
 329  };
 330
 331  /**
 332   * Normalizes the key event into an action name. The action will be broadcast
 333   * to the child controllers.
 334   * @param {KeyboardEvent} event
 335   * @returns {String} The action that should be taken, or null if the key
 336   * does not match a calendar shortcut.
 337   */
 338  CalendarCtrl.prototype.getActionFromKeyEvent = function(event) {
 339    var keyCode = this.keyCode;
 340
 341    switch (event.which) {
 342      case keyCode.ENTER: return 'select';
 343
 344      case keyCode.RIGHT_ARROW: return 'move-right';
 345      case keyCode.LEFT_ARROW: return 'move-left';
 346
 347      // TODO(crisbeto): Might want to reconsider using metaKey, because it maps
 348      // to the "Windows" key on PC, which opens the start menu or resizes the browser.
 349      case keyCode.DOWN_ARROW: return event.metaKey ? 'move-page-down' : 'move-row-down';
 350      case keyCode.UP_ARROW: return event.metaKey ? 'move-page-up' : 'move-row-up';
 351
 352      case keyCode.PAGE_DOWN: return 'move-page-down';
 353      case keyCode.PAGE_UP: return 'move-page-up';
 354
 355      case keyCode.HOME: return 'start';
 356      case keyCode.END: return 'end';
 357
 358      default: return null;
 359    }
 360  };
 361
 362  /**
 363   * Handles a key event in the calendar with the appropriate action. The action will either
 364   * be to select the focused date or to navigate to focus a new date.
 365   * @param {KeyboardEvent} event
 366   */
 367  CalendarCtrl.prototype.handleKeyEvent = function(event) {
 368    var self = this;
 369
 370    this.$scope.$apply(function() {
 371      // Capture escape and emit back up so that a wrapping component
 372      // (such as a date-picker) can decide to close.
 373      if (event.which == self.keyCode.ESCAPE || event.which == self.keyCode.TAB) {
 374        self.$scope.$emit('md-calendar-close');
 375
 376        if (event.which == self.keyCode.TAB) {
 377          event.preventDefault();
 378        }
 379
 380        return;
 381      }
 382
 383      // Broadcast the action that any child controllers should take.
 384      var action = self.getActionFromKeyEvent(event);
 385      if (action) {
 386        event.preventDefault();
 387        event.stopPropagation();
 388        self.$scope.$broadcast('md-calendar-parent-action', action);
 389      }
 390    });
 391  };
 392
 393  /**
 394   * Hides the vertical scrollbar on the calendar scroller of a child controller by
 395   * setting the width on the calendar scroller and the `overflow: hidden` wrapper
 396   * around the scroller, and then setting a padding-right on the scroller equal
 397   * to the width of the browser's scrollbar.
 398   *
 399   * This will cause a reflow.
 400   *
 401   * @param {object} childCtrl The child controller whose scrollbar should be hidden.
 402   */
 403  CalendarCtrl.prototype.hideVerticalScrollbar = function(childCtrl) {
 404    var self = this;
 405    var element = childCtrl.$element[0];
 406    var scrollMask = element.querySelector('.md-calendar-scroll-mask');
 407
 408    if (self.width > 0) {
 409      setWidth();
 410    } else {
 411      self.$$rAF(function() {
 412        var scroller = childCtrl.calendarScroller;
 413
 414        self.scrollbarWidth = scroller.offsetWidth - scroller.clientWidth;
 415        self.width = element.querySelector('table').offsetWidth;
 416        setWidth();
 417      });
 418    }
 419
 420    function setWidth() {
 421      var width = self.width || FALLBACK_WIDTH;
 422      var scrollbarWidth = self.scrollbarWidth;
 423      var scroller = childCtrl.calendarScroller;
 424
 425      scrollMask.style.width = width + 'px';
 426      scroller.style.width = (width + scrollbarWidth) + 'px';
 427      scroller.style.paddingRight = scrollbarWidth + 'px';
 428    }
 429  };
 430
 431  /**
 432   * Gets an identifier for a date unique to the calendar instance for internal
 433   * purposes. Not to be displayed.
 434   * @param {Date} date The date for which the id is being generated
 435   * @param {string} namespace Namespace for the id. (month, year etc.)
 436   * @returns {string}
 437   */
 438  CalendarCtrl.prototype.getDateId = function(date, namespace) {
 439    if (!namespace) {
 440      throw new Error('A namespace for the date id has to be specified.');
 441    }
 442
 443    return [
 444      'md',
 445      this.id,
 446      namespace,
 447      date.getFullYear(),
 448      date.getMonth(),
 449      date.getDate()
 450    ].join('-');
 451  };
 452
 453  /**
 454   * Util to trigger an extra digest on a parent scope, in order to to ensure that
 455   * any child virtual repeaters have updated. This is necessary, because the virtual
 456   * repeater doesn't update the $index the first time around since the content isn't
 457   * in place yet. The case, in which this is an issue, is when the repeater has less
 458   * than a page of content (e.g. a month or year view has a min or max date).
 459   */
 460  CalendarCtrl.prototype.updateVirtualRepeat = function() {
 461    var scope = this.$scope;
 462    var virtualRepeatResizeListener = scope.$on('$md-resize-enable', function() {
 463      if (!scope.$$phase) {
 464        scope.$apply();
 465      }
 466
 467      virtualRepeatResizeListener();
 468    });
 469  };
 470})();
 471
 472(function() {
 473  'use strict';
 474
 475  CalendarMonthCtrl.$inject = ["$element", "$scope", "$animate", "$q", "$$mdDateUtil", "$mdDateLocale"];
 476  angular.module('material.components.datepicker')
 477    .directive('mdCalendarMonth', calendarDirective);
 478
 479  /**
 480   * Height of one calendar month tbody. This must be made known to the virtual-repeat and is
 481   * subsequently used for scrolling to specific months.
 482   */
 483  var TBODY_HEIGHT = 265;
 484
 485  /**
 486   * Height of a calendar month with a single row. This is needed to calculate the offset for
 487   * rendering an extra month in virtual-repeat that only contains one row.
 488   */
 489  var TBODY_SINGLE_ROW_HEIGHT = 45;
 490
 491  /** Private directive that represents a list of months inside the calendar. */
 492  function calendarDirective() {
 493    return {
 494      template:
 495        '<table aria-hidden="true" class="md-calendar-day-header"><thead></thead></table>' +
 496        '<div class="md-calendar-scroll-mask">' +
 497        '<md-virtual-repeat-container class="md-calendar-scroll-container" ' +
 498              'md-offset-size="' + (TBODY_SINGLE_ROW_HEIGHT - TBODY_HEIGHT) + '">' +
 499            '<table role="grid" tabindex="0" class="md-calendar" aria-readonly="true">' +
 500              '<tbody ' +
 501                  'md-calendar-month-body ' +
 502                  'role="rowgroup" ' +
 503                  'md-virtual-repeat="i in monthCtrl.items" ' +
 504                  'md-month-offset="$index" ' +
 505                  'class="md-calendar-month" ' +
 506                  'md-start-index="monthCtrl.getSelectedMonthIndex()" ' +
 507                  'md-item-size="' + TBODY_HEIGHT + '"></tbody>' +
 508            '</table>' +
 509          '</md-virtual-repeat-container>' +
 510        '</div>',
 511      require: ['^^mdCalendar', 'mdCalendarMonth'],
 512      controller: CalendarMonthCtrl,
 513      controllerAs: 'monthCtrl',
 514      bindToController: true,
 515      link: function(scope, element, attrs, controllers) {
 516        var calendarCtrl = controllers[0];
 517        var monthCtrl = controllers[1];
 518        monthCtrl.initialize(calendarCtrl);
 519      }
 520    };
 521  }
 522
 523  /**
 524   * Controller for the calendar month component.
 525   * ngInject @constructor
 526   */
 527  function CalendarMonthCtrl($element, $scope, $animate, $q,
 528    $$mdDateUtil, $mdDateLocale) {
 529
 530    /** @final {!angular.JQLite} */
 531    this.$element = $element;
 532
 533    /** @final {!angular.Scope} */
 534    this.$scope = $scope;
 535
 536    /** @final {!angular.$animate} */
 537    this.$animate = $animate;
 538
 539    /** @final {!angular.$q} */
 540    this.$q = $q;
 541
 542    /** @final */
 543    this.dateUtil = $$mdDateUtil;
 544
 545    /** @final */
 546    this.dateLocale = $mdDateLocale;
 547
 548    /** @final {HTMLElement} */
 549    this.calendarScroller = $element[0].querySelector('.md-virtual-repeat-scroller');
 550
 551    /** @type {boolean} */
 552    this.isInitialized = false;
 553
 554    /** @type {boolean} */
 555    this.isMonthTransitionInProgress = false;
 556
 557    var self = this;
 558
 559    /**
 560     * Handles a click event on a date cell.
 561     * Created here so that every cell can use the same function instance.
 562     * @this {HTMLTableCellElement} The cell that was clicked.
 563     */
 564    this.cellClickHandler = function() {
 565      var timestamp = $$mdDateUtil.getTimestampFromNode(this);
 566      self.$scope.$apply(function() {
 567        self.calendarCtrl.setNgModelValue(timestamp);
 568      });
 569    };
 570
 571    /**
 572     * Handles click events on the month headers. Switches
 573     * the calendar to the year view.
 574     * @this {HTMLTableCellElement} The cell that was clicked.
 575     */
 576    this.headerClickHandler = function() {
 577      self.calendarCtrl.setCurrentView('year', $$mdDateUtil.getTimestampFromNode(this));
 578    };
 579  }
 580
 581  /*** Initialization ***/
 582
 583  /**
 584   * Initialize the controller by saving a reference to the calendar and
 585   * setting up the object that will be iterated by the virtual repeater.
 586   */
 587  CalendarMonthCtrl.prototype.initialize = function(calendarCtrl) {
 588    /**
 589     * Dummy array-like object for virtual-repeat to iterate over. The length is the total
 590     * number of months that can be viewed. We add 2 months: one to include the current month
 591     * and one for the last dummy month.
 592     *
 593     * This is shorter than ideal because of a (potential) Firefox bug
 594     * https://bugzilla.mozilla.org/show_bug.cgi?id=1181658.
 595     */
 596
 597    this.items = {
 598      length: this.dateUtil.getMonthDistance(
 599        calendarCtrl.firstRenderableDate,
 600        calendarCtrl.lastRenderableDate
 601      ) + 2
 602    };
 603
 604    this.calendarCtrl = calendarCtrl;
 605    this.attachScopeListeners();
 606    calendarCtrl.updateVirtualRepeat();
 607
 608    // Fire the initial render, since we might have missed it the first time it fired.
 609    calendarCtrl.ngModelCtrl && calendarCtrl.ngModelCtrl.$render();
 610  };
 611
 612  /**
 613   * Gets the "index" of the currently selected date as it would be in the virtual-repeat.
 614   * @returns {number}
 615   */
 616  CalendarMonthCtrl.prototype.getSelectedMonthIndex = function() {
 617    var calendarCtrl = this.calendarCtrl;
 618
 619    return this.dateUtil.getMonthDistance(
 620      calendarCtrl.firstRenderableDate,
 621      calendarCtrl.displayDate || calendarCtrl.selectedDate || calendarCtrl.today
 622    );
 623  };
 624
 625  /**
 626   * Change the selected date in the calendar (ngModel value has already been changed).
 627   * @param {Date} date
 628   */
 629  CalendarMonthCtrl.prototype.changeSelectedDate = function(date) {
 630    var self = this;
 631    var calendarCtrl = self.calendarCtrl;
 632    var previousSelectedDate = calendarCtrl.selectedDate;
 633    calendarCtrl.selectedDate = date;
 634
 635    this.changeDisplayDate(date).then(function() {
 636      var selectedDateClass = calendarCtrl.SELECTED_DATE_CLASS;
 637      var namespace = 'month';
 638
 639      // Remove the selected class from the previously selected date, if any.
 640      if (previousSelectedDate) {
 641        var prevDateCell = document.getElementById(calendarCtrl.getDateId(previousSelectedDate, namespace));
 642        if (prevDateCell) {
 643          prevDateCell.classList.remove(selectedDateClass);
 644          prevDateCell.setAttribute('aria-selected', 'false');
 645        }
 646      }
 647
 648      // Apply the select class to the new selected date if it is set.
 649      if (date) {
 650        var dateCell = document.getElementById(calendarCtrl.getDateId(date, namespace));
 651        if (dateCell) {
 652          dateCell.classList.add(selectedDateClass);
 653          dateCell.setAttribute('aria-selected', 'true');
 654        }
 655      }
 656    });
 657  };
 658
 659  /**
 660   * Change the date that is being shown in the calendar. If the given date is in a different
 661   * month, the displayed month will be transitioned.
 662   * @param {Date} date
 663   */
 664  CalendarMonthCtrl.prototype.changeDisplayDate = function(date) {
 665    // Initialization is deferred until this function is called because we want to reflect
 666    // the starting value of ngModel.
 667    if (!this.isInitialized) {
 668      this.buildWeekHeader();
 669      this.calendarCtrl.hideVerticalScrollbar(this);
 670      this.isInitialized = true;
 671      return this.$q.when();
 672    }
 673
 674    // If trying to show an invalid date or a transition is in progress, do nothing.
 675    if (!this.dateUtil.isValidDate(date) || this.isMonthTransitionInProgress) {
 676      return this.$q.when();
 677    }
 678
 679    this.isMonthTransitionInProgress = true;
 680    var animationPromise = this.animateDateChange(date);
 681
 682    this.calendarCtrl.displayDate = date;
 683
 684    var self = this;
 685    animationPromise.then(function() {
 686      self.isMonthTransitionInProgress = false;
 687    });
 688
 689    return animationPromise;
 690  };
 691
 692  /**
 693   * Animates the transition from the calendar's current month to the given month.
 694   * @param {Date} date
 695   * @returns {angular.$q.Promise} The animation promise.
 696   */
 697  CalendarMonthCtrl.prototype.animateDateChange = function(date) {
 698    if (this.dateUtil.isValidDate(date)) {
 699      var monthDistance = this.dateUtil.getMonthDistance(this.calendarCtrl.firstRenderableDate, date);
 700      this.calendarScroller.scrollTop = monthDistance * TBODY_HEIGHT;
 701    }
 702
 703    return this.$q.when();
 704  };
 705
 706  /**
 707   * Builds and appends a day-of-the-week header to the calendar.
 708   * This should only need to be called once during initialization.
 709   */
 710  CalendarMonthCtrl.prototype.buildWeekHeader = function() {
 711    var firstDayOfWeek = this.dateLocale.firstDayOfWeek;
 712    var shortDays = this.dateLocale.shortDays;
 713
 714    var row = document.createElement('tr');
 715    for (var i = 0; i < 7; i++) {
 716      var th = document.createElement('th');
 717      th.textContent = shortDays[(i + firstDayOfWeek) % 7];
 718      row.appendChild(th);
 719    }
 720
 721    this.$element.find('thead').append(row);
 722  };
 723
 724  /**
 725   * Attaches listeners for the scope events that are broadcast by the calendar.
 726   */
 727  CalendarMonthCtrl.prototype.attachScopeListeners = function() {
 728    var self = this;
 729
 730    self.$scope.$on('md-calendar-parent-changed', function(event, value) {
 731      self.changeSelectedDate(value);
 732    });
 733
 734    self.$scope.$on('md-calendar-parent-action', angular.bind(this, this.handleKeyEvent));
 735  };
 736
 737  /**
 738   * Handles the month-specific keyboard interactions.
 739   * @param {Object} event Scope event object passed by the calendar.
 740   * @param {String} action Action, corresponding to the key that was pressed.
 741   */
 742  CalendarMonthCtrl.prototype.handleKeyEvent = function(event, action) {
 743    var calendarCtrl = this.calendarCtrl;
 744    var displayDate = calendarCtrl.displayDate;
 745
 746    if (action === 'select') {
 747      calendarCtrl.setNgModelValue(displayDate);
 748    } else {
 749      var date = null;
 750      var dateUtil = this.dateUtil;
 751
 752      switch (action) {
 753        case 'move-right': date = dateUtil.incrementDays(displayDate, 1); break;
 754        case 'move-left': date = dateUtil.incrementDays(displayDate, -1); break;
 755
 756        case 'move-page-down': date = dateUtil.incrementMonths(displayDate, 1); break;
 757        case 'move-page-up': date = dateUtil.incrementMonths(displayDate, -1); break;
 758
 759        case 'move-row-down': date = dateUtil.incrementDays(displayDate, 7); break;
 760        case 'move-row-up': date = dateUtil.incrementDays(displayDate, -7); break;
 761
 762        case 'start': date = dateUtil.getFirstDateOfMonth(displayDate); break;
 763        case 'end': date = dateUtil.getLastDateOfMonth(displayDate); break;
 764      }
 765
 766      if (date) {
 767        date = this.dateUtil.clampDate(date, calendarCtrl.minDate, calendarCtrl.maxDate);
 768
 769        this.changeDisplayDate(date).then(function() {
 770          calendarCtrl.focus(date);
 771        });
 772      }
 773    }
 774  };
 775})();
 776
 777(function() {
 778  'use strict';
 779
 780  mdCalendarMonthBodyDirective.$inject = ["$compile", "$$mdSvgRegistry"];
 781  CalendarMonthBodyCtrl.$inject = ["$element", "$$mdDateUtil", "$mdDateLocale"];
 782  angular.module('material.components.datepicker')
 783      .directive('mdCalendarMonthBody', mdCalendarMonthBodyDirective);
 784
 785  /**
 786   * Private directive consumed by md-calendar-month. Having this directive lets the calender use
 787   * md-virtual-repeat and also cleanly separates the month DOM construction functions from
 788   * the rest of the calendar controller logic.
 789   * ngInject
 790   */
 791  function mdCalendarMonthBodyDirective($compile, $$mdSvgRegistry) {
 792    var ARROW_ICON = $compile('<md-icon md-svg-src="' +
 793      $$mdSvgRegistry.mdTabsArrow + '"></md-icon>')({})[0];
 794
 795    return {
 796      require: ['^^mdCalendar', '^^mdCalendarMonth', 'mdCalendarMonthBody'],
 797      scope: { offset: '=mdMonthOffset' },
 798      controller: CalendarMonthBodyCtrl,
 799      controllerAs: 'mdMonthBodyCtrl',
 800      bindToController: true,
 801      link: function(scope, element, attrs, controllers) {
 802        var calendarCtrl = controllers[0];
 803        var monthCtrl = controllers[1];
 804        var monthBodyCtrl = controllers[2];
 805
 806        monthBodyCtrl.calendarCtrl = calendarCtrl;
 807        monthBodyCtrl.monthCtrl = monthCtrl;
 808        monthBodyCtrl.arrowIcon = ARROW_ICON.cloneNode(true);
 809
 810        // The virtual-repeat re-uses the same DOM elements, so there are only a limited number
 811        // of repeated items that are linked, and then those elements have their bindings updated.
 812        // Since the months are not generated by bindings, we simply regenerate the entire thing
 813        // when the binding (offset) changes.
 814        scope.$watch(function() { return monthBodyCtrl.offset; }, function(offset, oldOffset) {
 815          if (offset !== oldOffset) {
 816            monthBodyCtrl.generateContent();
 817          }
 818        });
 819      }
 820    };
 821  }
 822
 823  /**
 824   * Controller for a single calendar month.
 825   * ngInject @constructor
 826   */
 827  function CalendarMonthBodyCtrl($element, $$mdDateUtil, $mdDateLocale) {
 828    /** @final {!angular.JQLite} */
 829    this.$element = $element;
 830
 831    /** @final */
 832    this.dateUtil = $$mdDateUtil;
 833
 834    /** @final */
 835    this.dateLocale = $mdDateLocale;
 836
 837    /** @type {Object} Reference to the month view. */
 838    this.monthCtrl = null;
 839
 840    /** @type {Object} Reference to the calendar. */
 841    this.calendarCtrl = null;
 842
 843    /**
 844     * Number of months from the start of the month "items" that the currently rendered month
 845     * occurs. Set via angular data binding.
 846     * @type {number}
 847     */
 848    this.offset = null;
 849
 850    /**
 851     * Date cell to focus after appending the month to the document.
 852     * @type {HTMLElement}
 853     */
 854    this.focusAfterAppend = null;
 855  }
 856
 857  /** Generate and append the content for this month to the directive element. */
 858  CalendarMonthBodyCtrl.prototype.generateContent = function() {
 859    var date = this.dateUtil.incrementMonths(this.calendarCtrl.firstRenderableDate, this.offset);
 860
 861    this.$element
 862      .empty()
 863      .append(this.buildCalendarForMonth(date));
 864
 865    if (this.focusAfterAppend) {
 866      this.focusAfterAppend.classList.add(this.calendarCtrl.FOCUSED_DATE_CLASS);
 867      this.focusAfterAppend.focus();
 868      this.focusAfterAppend = null;
 869    }
 870  };
 871
 872  /**
 873   * Creates a single cell to contain a date in the calendar with all appropriate
 874   * attributes and classes added. If a date is given, the cell content will be set
 875   * based on the date.
 876   * @param {Date=} opt_date
 877   * @returns {HTMLElement}
 878   */
 879  CalendarMonthBodyCtrl.prototype.buildDateCell = function(opt_date) {
 880    var monthCtrl = this.monthCtrl;
 881    var calendarCtrl = this.calendarCtrl;
 882
 883    // TODO(jelbourn): cloneNode is likely a faster way of doing this.
 884    var cell = document.createElement('td');
 885    cell.tabIndex = -1;
 886    cell.classList.add('md-calendar-date');
 887    cell.setAttribute('role', 'gridcell');
 888
 889    if (opt_date) {
 890      cell.setAttribute('tabindex', '-1');
 891      cell.setAttribute('aria-label', this.dateLocale.longDateFormatter(opt_date));
 892      cell.id = calendarCtrl.getDateId(opt_date, 'month');
 893
 894      // Use `data-timestamp` attribute because IE10 does not support the `dataset` property.
 895      cell.setAttribute('data-timestamp', opt_date.getTime());
 896
 897      // TODO(jelourn): Doing these comparisons for class addition during generation might be slow.
 898      // It may be better to finish the construction and then query the node and add the class.
 899      if (this.dateUtil.isSameDay(opt_date, calendarCtrl.today)) {
 900        cell.classList.add(calendarCtrl.TODAY_CLASS);
 901      }
 902
 903      if (this.dateUtil.isValidDate(calendarCtrl.selectedDate) &&
 904          this.dateUtil.isSameDay(opt_date, calendarCtrl.selectedDate)) {
 905        cell.classList.add(calendarCtrl.SELECTED_DATE_CLASS);
 906        cell.setAttribute('aria-selected', 'true');
 907      }
 908
 909      var cellText = this.dateLocale.dates[opt_date.getDate()];
 910
 911      if (this.isDateEnabled(opt_date)) {
 912        // Add a indicator for select, hover, and focus states.
 913        var selectionIndicator = document.createElement('span');
 914        selectionIndicator.classList.add('md-calendar-date-selection-indicator');
 915        selectionIndicator.textContent = cellText;
 916        cell.appendChild(selectionIndicator);
 917        cell.addEventListener('click', monthCtrl.cellClickHandler);
 918
 919        if (calendarCtrl.displayDate && this.dateUtil.isSameDay(opt_date, calendarCtrl.displayDate)) {
 920          this.focusAfterAppend = cell;
 921        }
 922      } else {
 923        cell.classList.add('md-calendar-date-disabled');
 924        cell.textContent = cellText;
 925      }
 926    }
 927
 928    return cell;
 929  };
 930
 931  /**
 932   * Check whether date is in range and enabled
 933   * @param {Date=} opt_date
 934   * @return {boolean} Whether the date is enabled.
 935   */
 936  CalendarMonthBodyCtrl.prototype.isDateEnabled = function(opt_date) {
 937    return this.dateUtil.isDateWithinRange(opt_date,
 938          this.calendarCtrl.minDate, this.calendarCtrl.maxDate) &&
 939          (!angular.isFunction(this.calendarCtrl.dateFilter)
 940           || this.calendarCtrl.dateFilter(opt_date));
 941  };
 942
 943  /**
 944   * Builds a `tr` element for the calendar grid.
 945   * @param rowNumber The week number within the month.
 946   * @returns {HTMLElement}
 947   */
 948  CalendarMonthBodyCtrl.prototype.buildDateRow = function(rowNumber) {
 949    var row = document.createElement('tr');
 950    row.setAttribute('role', 'row');
 951
 952    // Because of an NVDA bug (with Firefox), the row needs an aria-label in order
 953    // to prevent the entire row being read aloud when the user moves between rows.
 954    // See http://community.nvda-project.org/ticket/4643.
 955    row.setAttribute('aria-label', this.dateLocale.weekNumberFormatter(rowNumber));
 956
 957    return row;
 958  };
 959
 960  /**
 961   * Builds the <tbody> content for the given date's month.
 962   * @param {Date=} opt_dateInMonth
 963   * @returns {DocumentFragment} A document fragment containing the <tr> elements.
 964   */
 965  CalendarMonthBodyCtrl.prototype.buildCalendarForMonth = function(opt_dateInMonth) {
 966    var date = this.dateUtil.isValidDate(opt_dateInMonth) ? opt_dateInMonth : new Date();
 967
 968    var firstDayOfMonth = this.dateUtil.getFirstDateOfMonth(date);
 969    var firstDayOfTheWeek = this.getLocaleDay_(firstDayOfMonth);
 970    var numberOfDaysInMonth = this.dateUtil.getNumberOfDaysInMonth(date);
 971
 972    // Store rows for the month in a document fragment so that we can append them all at once.
 973    var monthBody = document.createDocumentFragment();
 974
 975    var rowNumber = 1;
 976    var row = this.buildDateRow(rowNumber);
 977    monthBody.appendChild(row);
 978
 979    // If this is the final month in the list of items, only the first week should render,
 980    // so we should return immediately after the first row is complete and has been
 981    // attached to the body.
 982    var isFinalMonth = this.offset === this.monthCtrl.items.length - 1;
 983
 984    // Add a label for the month. If the month starts on a Sun/Mon/Tues, the month label
 985    // goes on a row above the first of the month. Otherwise, the month label takes up the first
 986    // two cells of the first row.
 987    var blankCellOffset = 0;
 988    var monthLabelCell = document.createElement('td');
 989    var monthLabelCellContent = document.createElement('span');
 990
 991    monthLabelCellContent.textContent = this.dateLocale.monthHeaderFormatter(date);
 992    monthLabelCell.appendChild(monthLabelCellContent);
 993    monthLabelCell.classList.add('md-calendar-month-label');
 994    // If the entire month is after the max date, render the label as a disabled state.
 995    if (this.calendarCtrl.maxDate && firstDayOfMonth > this.calendarCtrl.maxDate) {
 996      monthLabelCell.classList.add('md-calendar-month-label-disabled');
 997    } else {
 998      monthLabelCell.addEventListener('click', this.monthCtrl.headerClickHandler);
 999      monthLabelCell.setAttribute('data-timestamp', firstDayOfMonth.getTime());
1000      monthLabelCell.setAttribute('aria-label', this.dateLocale.monthFormatter(date));
1001      monthLabelCell.appendChild(this.arrowIcon.cloneNode(true));
1002    }
1003
1004    if (firstDayOfTheWeek <= 2) {
1005      monthLabelCell.setAttribute('colspan', '7');
1006
1007      var monthLabelRow = this.buildDateRow();
1008      monthLabelRow.appendChild(monthLabelCell);
1009      monthBody.insertBefore(monthLabelRow, row);
1010
1011      if (isFinalMonth) {
1012        return monthBody;
1013      }
1014    } else {
1015      blankCellOffset = 3;
1016      monthLabelCell.setAttribute('colspan', '3');
1017      row.appendChild(monthLabelCell);
1018    }
1019
1020    // Add a blank cell for each day of the week that occurs before the first of the month.
1021    // For example, if the first day of the month is a Tuesday, add blank cells for Sun and Mon.
1022    // The blankCellOffset is needed in cases where the first N cells are used by the month label.
1023    for (var i = blankCellOffset; i < firstDayOfTheWeek; i++) {
1024      row.appendChild(this.buildDateCell());
1025    }
1026
1027    // Add a cell for each day of the month, keeping track of the day of the week so that
1028    // we know when to start a new row.
1029    var dayOfWeek = firstDayOfTheWeek;
1030    var iterationDate = firstDayOfMonth;
1031    for (var d = 1; d <= numberOfDaysInMonth; d++) {
1032      // If we've reached the end of the week, start a new row.
1033      if (dayOfWeek === 7) {
1034        // We've finished the first row, so we're done if this is the final month.
1035        if (isFinalMonth) {
1036          return monthBody;
1037        }
1038        dayOfWeek = 0;
1039        rowNumber++;
1040        row = this.buildDateRow(rowNumber);
1041        monthBody.appendChild(row);
1042      }
1043
1044      iterationDate.setDate(d);
1045      var cell = this.buildDateCell(iterationDate);
1046      row.appendChild(cell);
1047
1048      dayOfWeek++;
1049    }
1050
1051    // Ensure that the last row of the month has 7 cells.
1052    while (row.childNodes.length < 7) {
1053      row.appendChild(this.buildDateCell());
1054    }
1055
1056    // Ensure that all months have 6 rows. This is necessary for now because the virtual-repeat
1057    // requires that all items have exactly the same height.
1058    while (monthBody.childNodes.length < 6) {
1059      var whitespaceRow = this.buildDateRow();
1060      for (var j = 0; j < 7; j++) {
1061        whitespaceRow.appendChild(this.buildDateCell());
1062      }
1063      monthBody.appendChild(whitespaceRow);
1064    }
1065
1066    return monthBody;
1067  };
1068
1069  /**
1070   * Gets the day-of-the-week index for a date for the current locale.
1071   * @private
1072   * @param {Date} date
1073   * @returns {number} The column index of the date in the calendar.
1074   */
1075  CalendarMonthBodyCtrl.prototype.getLocaleDay_ = function(date) {
1076    return (date.getDay() + (7 - this.dateLocale.firstDayOfWeek)) % 7;
1077  };
1078})();
1079
1080(function() {
1081  'use strict';
1082
1083  CalendarYearCtrl.$inject = ["$element", "$scope", "$animate", "$q", "$$mdDateUtil"];
1084  angular.module('material.components.datepicker')
1085    .directive('mdCalendarYear', calendarDirective);
1086
1087  /**
1088   * Height of one calendar year tbody. This must be made known to the virtual-repeat and is
1089   * subsequently used for scrolling to specific years.
1090   */
1091  var TBODY_HEIGHT = 88;
1092
1093  /** Private component, representing a list of years in the calendar. */
1094  function calendarDirective() {
1095    return {
1096      template:
1097        '<div class="md-calendar-scroll-mask">' +
1098          '<md-virtual-repeat-container class="md-calendar-scroll-container">' +
1099            '<table role="grid" tabindex="0" class="md-calendar" aria-readonly="true">' +
1100              '<tbody ' +
1101                  'md-calendar-year-body ' +
1102                  'role="rowgroup" ' +
1103                  'md-virtual-repeat="i in yearCtrl.items" ' +
1104                  'md-year-offset="$index" class="md-calendar-year" ' +
1105                  'md-start-index="yearCtrl.getFocusedYearIndex()" ' +
1106                  'md-item-size="' + TBODY_HEIGHT + '"></tbody>' +
1107            '</table>' +
1108          '</md-virtual-repeat-container>' +
1109        '</div>',
1110      require: ['^^mdCalendar', 'mdCalendarYear'],
1111      controller: CalendarYearCtrl,
1112      controllerAs: 'yearCtrl',
1113      bindToController: true,
1114      link: function(scope, element, attrs, controllers) {
1115        var calendarCtrl = controllers[0];
1116        var yearCtrl = controllers[1];
1117        yearCtrl.initialize(calendarCtrl);
1118      }
1119    };
1120  }
1121
1122  /**
1123   * Controller for the mdCalendar component.
1124   * ngInject @constructor
1125   */
1126  function CalendarYearCtrl($element, $scope, $animate, $q, $$mdDateUtil) {
1127
1128    /** @final {!angular.JQLite} */
1129    this.$element = $element;
1130
1131    /** @final {!angular.Scope} */
1132    this.$scope = $scope;
1133
1134    /** @final {!angular.$animate} */
1135    this.$animate = $animate;
1136
1137    /** @final {!angular.$q} */
1138    this.$q = $q;
1139
1140    /** @final */
1141    this.dateUtil = $$mdDateUtil;
1142
1143    /** @final {HTMLElement} */
1144    this.calendarScroller = $element[0].querySelector('.md-virtual-repeat-scroller');
1145
1146    /** @type {boolean} */
1147    this.isInitialized = false;
1148
1149    /** @type {boolean} */
1150    this.isMonthTransitionInProgress = false;
1151
1152    var self = this;
1153
1154    /**
1155     * Handles a click event on a date cell.
1156     * Created here so that every cell can use the same function instance.
1157     * @this {HTMLTableCellElement} The cell that was clicked.
1158     */
1159    this.cellClickHandler = function() {
1160      self.calendarCtrl.setCurrentView('month', $$mdDateUtil.getTimestampFromNode(this));
1161    };
1162  }
1163
1164  /**
1165   * Initialize the controller by saving a reference to the calendar and
1166   * setting up the object that will be iterated by the virtual repeater.
1167   */
1168  CalendarYearCtrl.prototype.initialize = function(calendarCtrl) {
1169    /**
1170     * Dummy array-like object for virtual-repeat to iterate over. The length is the total
1171     * number of years that can be viewed. We add 1 extra in order to include the current year.
1172     */
1173    this.items = {
1174      length: this.dateUtil.getYearDistance(
1175        calendarCtrl.firstRenderableDate,
1176        calendarCtrl.lastRenderableDate
1177      ) + 1
1178    };
1179
1180    this.calendarCtrl = calendarCtrl;
1181    this.attachScopeListeners();
1182    calendarCtrl.updateVirtualRepeat();
1183
1184    // Fire the initial render, since we might have missed it the first time it fired.
1185    calendarCtrl.ngModelCtrl && calendarCtrl.ngModelCtrl.$render();
1186  };
1187
1188  /**
1189   * Gets the "index" of the currently selected date as it would be in the virtual-repeat.
1190   * @returns {number}
1191   */
1192  CalendarYearCtrl.prototype.getFocusedYearIndex = function() {
1193    var calendarCtrl = this.calendarCtrl;
1194
1195    return this.dateUtil.getYearDistance(
1196      calendarCtrl.firstRenderableDate,
1197      calendarCtrl.displayDate || calendarCtrl.selectedDate || calendarCtrl.today
1198    );
1199  };
1200
1201  /**
1202   * Change the date that is highlighted in the calendar.
1203   * @param {Date} date
1204   */
1205  CalendarYearCtrl.prototype.changeDate = function(date) {
1206    // Initialization is deferred until this function is called because we want to reflect
1207    // the starting value of ngModel.
1208    if (!this.isInitialized) {
1209      this.calendarCtrl.hideVerticalScrollbar(this);
1210      this.isInitialized = true;
1211      return this.$q.when();
1212    } else if (this.dateUtil.isValidDate(date) && !this.isMonthTransitionInProgress) {
1213      var self = this;
1214      var animationPromise = this.animateDateChange(date);
1215
1216      self.isMonthTransitionInProgress = true;
1217      self.calendarCtrl.displayDate = date;
1218
1219      return animationPromise.then(function() {
1220        self.isMonthTransitionInProgress = false;
1221      });
1222    }
1223  };
1224
1225  /**
1226   * Animates the transition from the calendar's current month to the given month.
1227   * @param {Date} date
1228   * @returns {angular.$q.Promise} The animation promise.
1229   */
1230  CalendarYearCtrl.prototype.animateDateChange = function(date) {
1231    if (this.dateUtil.isValidDate(date)) {
1232      var monthDistance = this.dateUtil.getYearDistance(this.calendarCtrl.firstRenderableDate, date);
1233      this.calendarScroller.scrollTop = monthDistance * TBODY_HEIGHT;
1234    }
1235
1236    return this.$q.when();
1237  };
1238
1239  /**
1240   * Handles the year-view-specific keyboard interactions.
1241   * @param {Object} event Scope event object passed by the calendar.
1242   * @param {String} action Action, corresponding to the key that was pressed.
1243   */
1244  CalendarYearCtrl.prototype.handleKeyEvent = function(event, action) {
1245    var calendarCtrl = this.calendarCtrl;
1246    var displayDate = calendarCtrl.displayDate;
1247
1248    if (action === 'select') {
1249      this.changeDate(displayDate).then(function() {
1250        calendarCtrl.setCurrentView('month', displayDate);
1251        calendarCtrl.focus(displayDate);
1252      });
1253    } else {
1254      var date = null;
1255      var dateUtil = this.dateUtil;
1256
1257      switch (action) {
1258        case 'move-right': date = dateUtil.incrementMonths(displayDate, 1); break;
1259        case 'move-left': date = dateUtil.incrementMonths(displayDate, -1); break;
1260
1261        case 'move-row-down': date = dateUtil.incrementMonths(displayDate, 6); break;
1262        case 'move-row-up': date = dateUtil.incrementMonths(displayDate, -6); break;
1263      }
1264
1265      if (date) {
1266        var min = calendarCtrl.minDate ? dateUtil.getFirstDateOfMonth(calendarCtrl.minDate) : null;
1267        var max = calendarCtrl.maxDate ? dateUtil.getFirstDateOfMonth(calendarCtrl.maxDate) : null;
1268        date = dateUtil.getFirstDateOfMonth(this.dateUtil.clampDate(date, min, max));
1269
1270        this.changeDate(date).then(function() {
1271          calendarCtrl.focus(date);
1272        });
1273      }
1274    }
1275  };
1276
1277  /**
1278   * Attaches listeners for the scope events that are broadcast by the calendar.
1279   */
1280  CalendarYearCtrl.prototype.attachScopeListeners = function() {
1281    var self = this;
1282
1283    self.$scope.$on('md-calendar-parent-changed', function(event, value) {
1284      self.changeDate(value);
1285    });
1286
1287    self.$scope.$on('md-calendar-parent-action', angular.bind(self, self.handleKeyEvent));
1288  };
1289})();
1290
1291(function() {
1292  'use strict';
1293
1294  CalendarYearBodyCtrl.$inject = ["$element", "$$mdDateUtil", "$mdDateLocale"];
1295  angular.module('material.components.datepicker')
1296      .directive('mdCalendarYearBody', mdCalendarYearDirective);
1297
1298  /**
1299   * Private component, consumed by the md-calendar-year, which separates the DOM construction logic
1300   * and allows for the year view to use md-virtual-repeat.
1301   */
1302  function mdCalendarYearDirective() {
1303    return {
1304      require: ['^^mdCalendar', '^^mdCalendarYear', 'mdCalendarYearBody'],
1305      scope: { offset: '=mdYearOffset' },
1306      controller: CalendarYearBodyCtrl,
1307      controllerAs: 'mdYearBodyCtrl',
1308      bindToController: true,
1309      link: function(scope, element, attrs, controllers) {
1310        var calendarCtrl = controllers[0];
1311        var yearCtrl = controllers[1];
1312        var yearBodyCtrl = controllers[2];
1313
1314        yearBodyCtrl.calendarCtrl = calendarCtrl;
1315        yearBodyCtrl.yearCtrl = yearCtrl;
1316
1317        scope.$watch(function() { return yearBodyCtrl.offset; }, function(offset, oldOffset) {
1318          if (offset !== oldOffset) {
1319            yearBodyCtrl.generateContent();
1320          }
1321        });
1322      }
1323    };
1324  }
1325
1326  /**
1327   * Controller for a single year.
1328   * ngInject @constructor
1329   */
1330  function CalendarYearBodyCtrl($element, $$mdDateUtil, $mdDateLocale) {
1331    /** @final {!angular.JQLite} */
1332    this.$element = $element;
1333
1334    /** @final */
1335    this.dateUtil = $$mdDateUtil;
1336
1337    /** @final */
1338    this.dateLocale = $mdDateLocale;
1339
1340    /** @type {Object} Reference to the calendar. */
1341    this.calendarCtrl = null;
1342
1343    /** @type {Object} Reference to the year view. */
1344    this.yearCtrl = null;
1345
1346    /**
1347     * Number of months from the start of the month "items" that the currently rendered month
1348     * occurs. Set via angular data binding.
1349     * @type {number}
1350     */
1351    this.offset = null;
1352
1353    /**
1354     * Date cell to focus after appending the month to the document.
1355     * @type {HTMLElement}
1356     */
1357    this.focusAfterAppend = null;
1358  }
1359
1360  /** Generate and append the content for this year to the directive element. */
1361  CalendarYearBodyCtrl.prototype.generateContent = function() {
1362    var date = this.dateUtil.incrementYears(this.calendarCtrl.firstRenderableDate, this.offset);
1363
1364    this.$element
1365      .empty()
1366      .append(this.buildCalendarForYear(date));
1367
1368    if (this.focusAfterAppend) {
1369      this.focusAfterAppend.classList.add(this.calendarCtrl.FOCUSED_DATE_CLASS);
1370      this.focusAfterAppend.focus();
1371      this.focusAfterAppend = null;
1372    }
1373  };
1374
1375  /**
1376   * Creates a single cell to contain a year in the calendar.
1377   * @param {number} opt_year Four-digit year.
1378   * @param {number} opt_month Zero-indexed month.
1379   * @returns {HTMLElement}
1380   */
1381  CalendarYearBodyCtrl.prototype.buildMonthCell = function(year, month) {
1382    var calendarCtrl = this.calendarCtrl;
1383    var yearCtrl = this.yearCtrl;
1384    var cell = this.buildBlankCell();
1385
1386    // Represent this month/year as a date.
1387    var firstOfMonth = new Date(year, month, 1);
1388    cell.setAttribute('aria-label', this.dateLocale.monthFormatter(firstOfMonth));
1389    cell.id = calendarCtrl.getDateId(firstOfMonth, 'year');
1390
1391    // Use `data-timestamp` attribute because IE10 does not support the `dataset` property.
1392    cell.setAttribute('data-timestamp', firstOfMonth.getTime());
1393
1394    if (this.dateUtil.isSameMonthAndYear(firstOfMonth, calendarCtrl.today)) {
1395      cell.classList.add(calendarCtrl.TODAY_CLASS);
1396    }
1397
1398    if (this.dateUtil.isValidDate(calendarCtrl.selectedDate) &&
1399        this.dateUtil.isSameMonthAndYear(firstOfMonth, calendarCtrl.selectedDate)) {
1400      cell.classList.add(calendarCtrl.SELECTED_DATE_CLASS);
1401      cell.setAttribute('aria-selected', 'true');
1402    }
1403
1404    var cellText = this.dateLocale.shortMonths[month];
1405
1406    if (this.dateUtil.isMonthWithinRange(firstOfMonth,
1407        calendarCtrl.minDate, calendarCtrl.maxDate)) {
1408      var selectionIndicator = document.createElement('span');
1409      selectionIndicator.classList.add('md-calendar-date-selection-indicator');
1410      selectionIndicator.textContent = cellText;
1411      cell.appendChild(selectionIndicator);
1412      cell.addEventListener('click', yearCtrl.cellClickHandler);
1413
1414      if (calendarCtrl.displayDate && this.dateUtil.isSameMonthAndYear(firstOfMonth, calendarCtrl.displayDate)) {
1415        this.focusAfterAppend = cell;
1416      }
1417    } else {
1418      cell.classList.add('md-calendar-date-disabled');
1419      cell.textContent = cellText;
1420    }
1421
1422    return cell;
1423  };
1424
1425  /**
1426   * Builds a blank cell.
1427   * @return {HTMLTableCellElement}
1428   */
1429  CalendarYearBodyCtrl.prototype.buildBlankCell = function() {
1430    var cell = document.createElement('td');
1431    cell.tabIndex = -1;
1432    cell.classList.add('md-calendar-date');
1433    cell.setAttribute('role', 'gridcell');
1434
1435    cell.setAttribute('tabindex', '-1');
1436    return cell;
1437  };
1438
1439  /**
1440   * Builds the <tbody> content for the given year.
1441   * @param {Date} date Date for which the content should be built.
1442   * @returns {DocumentFragment} A document fragment containing the months within the year.
1443   */
1444  CalendarYearBodyCtrl.prototype.buildCalendarForYear = function(date) {
1445    // Store rows for the month in a document fragment so that we can append them all at once.
1446    var year = date.getFullYear();
1447    var yearBody = document.createDocumentFragment();
1448
1449    var monthCell, i;
1450    // First row contains label and Jan-Jun.
1451    var firstRow = document.createElement('tr');
1452    var labelCell = document.createElement('td');
1453    labelCell.className = 'md-calendar-month-label';
1454    labelCell.textContent = year;
1455    firstRow.appendChild(labelCell);
1456
1457    for (i = 0; i < 6; i++) {
1458      firstRow.appendChild(this.buildMonthCell(year, i));
1459    }
1460    yearBody.appendChild(firstRow);
1461
1462    // Second row contains a blank cell and Jul-Dec.
1463    var secondRow = document.createElement('tr');
1464    secondRow.appendChild(this.buildBlankCell());
1465    for (i = 6; i < 12; i++) {
1466      secondRow.appendChild(this.buildMonthCell(year, i));
1467    }
1468    yearBody.appendChild(secondRow);
1469
1470    return yearBody;
1471  };
1472})();
1473
1474(function() {
1475  'use strict';
1476
1477  /**
1478   * @ngdoc service
1479   * @name $mdDateLocaleProvider
1480   * @module material.components.datepicker
1481   *
1482   * @description
1483   * The `$mdDateLocaleProvider` is the provider that creates the `$mdDateLocale` service.
1484   * This provider that allows the user to specify messages, formatters, and parsers for date
1485   * internationalization. The `$mdDateLocale` service itself is consumed by Angular Material
1486   * components that deal with dates.
1487   *
1488   * @property {(Array<string>)=} months Array of month names (in order).
1489   * @property {(Array<string>)=} shortMonths Array of abbreviated month names.
1490   * @property {(Array<string>)=} days Array of the days of the week (in order).
1491   * @property {(Array<string>)=} shortDays Array of abbreviated dayes of the week.
1492   * @property {(Array<string>)=} dates Array of dates of the month. Only necessary for locales
1493   *     using a numeral system other than [1, 2, 3...].
1494   * @property {(Array<string>)=} firstDayOfWeek The first day of the week. Sunday = 0, Monday = 1,
1495   *    etc.
1496   * @property {(function(string): Date)=} parseDate Function to parse a date object from a string.
1497   * @property {(function(Date): string)=} formatDate Function to format a date object to a string.
1498   * @property {(function(Date): string)=} monthHeaderFormatter Function that returns the label for
1499   *     a month given a date.
1500   * @property {(function(Date): string)=} monthFormatter Function that returns the full name of a month
1501   *     for a giben date.
1502   * @property {(function(number): string)=} weekNumberFormatter Function that returns a label for
1503   *     a week given the week number.
1504   * @property {(string)=} msgCalendar Translation of the label "Calendar" for the current locale.
1505   * @property {(string)=} msgOpenCalendar Translation of the button label "Open calendar" for the
1506   *     current locale.
1507   * @property {Date=} firstRenderableDate The date from which the datepicker calendar will begin
1508   * rendering. Note that this will be ignored if a minimum date is set. Defaults to January 1st 1880.
1509   * @property {Date=} lastRenderableDate The last date that will be rendered by the datepicker
1510   * calendar. Note that this will be ignored if a maximum date is set. Defaults to January 1st 2130.
1511   *
1512   * @usage
1513   * <hljs lang="js">
1514   * myAppModule.config(function($mdDateLocaleProvider) {
1515   *
1516   *     // Example of a French localization.
1517   *     $mdDateLocaleProvider.months = ['janvier', 'février', 'mars', ...];
1518   *     $mdDateLocaleProvider.shortMonths = ['janv', 'févr', 'mars', ...];
1519   *     $mdDateLocaleProvider.days = ['dimanche', 'lundi', 'mardi', ...];
1520   *     $mdDateLocaleProvider.shortDays = ['Di', 'Lu', 'Ma', ...];
1521   *
1522   *     // Can change week display to start on Monday.
1523   *     $mdDateLocaleProvider.firstDayOfWeek = 1;
1524   *
1525   *     // Optional.
1526   *     $mdDateLocaleProvider.dates = [1, 2, 3, 4, 5, 6, ...];
1527   *
1528   *     // Example uses moment.js to parse and format dates.
1529   *     $mdDateLocaleProvider.parseDate = function(dateString) {
1530   *       var m = moment(dateString, 'L', true);
1531   *       return m.isValid() ? m.toDate() : new Date(NaN);
1532   *     };
1533   *
1534   *     $mdDateLocaleProvider.formatDate = function(date) {
1535   *       var m = moment(date);
1536   *       return m.isValid() ? m.format('L') : '';
1537   *     };
1538   *
1539   *     $mdDateLocaleProvider.monthHeaderFormatter = function(date) {
1540   *       return myShortMonths[date.getMonth()] + ' ' + date.getFullYear();
1541   *     };
1542   *
1543   *     // In addition to date display, date components also need localized messages
1544   *     // for aria-labels for screen-reader users.
1545   *
1546   *     $mdDateLocaleProvider.weekNumberFormatter = function(weekNumber) {
1547   *       return 'Semaine ' + weekNumber;
1548   *     };
1549   *
1550   *     $mdDateLocaleProvider.msgCalendar = 'Calendrier';
1551   *     $mdDateLocaleProvider.msgOpenCalendar = 'Ouvrir le calendrier';
1552   *
1553   *     // You can also set when your calendar begins and ends.
1554   *     $mdDateLocaleProvider.firstRenderableDate = new Date(1776, 6, 4);
1555   *     $mdDateLocaleProvider.lastRenderableDate = new Date(2012, 11, 21);
1556   * });
1557   * </hljs>
1558   *
1559   */
1560  angular.module('material.components.datepicker').config(["$provide", function($provide) {
1561    // TODO(jelbourn): Assert provided values are correctly formatted. Need assertions.
1562
1563    /** @constructor */
1564    function DateLocaleProvider() {
1565      /** Array of full month names. E.g., ['January', 'Febuary', ...] */
1566      this.months = null;
1567
1568      /** Array of abbreviated month names. E.g., ['Jan', 'Feb', ...] */
1569      this.shortMonths = null;
1570
1571      /** Array of full day of the week names. E.g., ['Monday', 'Tuesday', ...] */
1572      this.days = null;
1573
1574      /** Array of abbreviated dat of the week names. E.g., ['M', 'T', ...] */
1575      this.shortDays = null;
1576
1577      /** Array of dates of a month (1 - 31). Characters might be different in some locales. */
1578      this.dates = null;
1579
1580      /** Index of the first day of the week. 0 = Sunday, 1 = Monday, etc. */
1581      this.firstDayOfWeek = 0;
1582
1583      /**
1584       * Function that converts the date portion of a Date to a string.
1585       * @type {(function(Date): string)}
1586       */
1587      this.formatDate = null;
1588
1589      /**
1590       * Function that converts a date string to a Date object (the date portion)
1591       * @type {function(string): Date}
1592       */
1593      this.parseDate = null;
1594
1595      /**
1596       * Function that formats a Date into a month header string.
1597       * @type {function(Date): string}
1598       */
1599      this.monthHeaderFormatter = null;
1600
1601      /**
1602       * Function that formats a week number into a label for the week.
1603       * @type {function(number): string}
1604       */
1605      this.weekNumberFormatter = null;
1606
1607      /**
1608       * Function that formats a date into a long aria-label that is read
1609       * when the focused date changes.
1610       * @type {function(Date): string}
1611       */
1612      this.longDateFormatter = null;
1613
1614      /**
1615       * ARIA label for the calendar "dialog" used in the datepicker.
1616       * @type {string}
1617       */
1618      this.msgCalendar = '';
1619
1620      /**
1621       * ARIA label for the datepicker's "Open calendar" buttons.
1622       * @type {string}
1623       */
1624      this.msgOpenCalendar = '';
1625    }
1626
1627    /**
1628     * Factory function that returns an instance of the dateLocale service.
1629     * ngInject
1630     * @param $locale
1631     * @returns {DateLocale}
1632     */
1633    DateLocaleProvider.prototype.$get = function($locale, $filter) {
1634      /**
1635       * Default date-to-string formatting function.
1636       * @param {!Date} date
1637       * @returns {string}
1638       */
1639      function defaultFormatDate(date) {
1640        if (!date) {
1641          return '';
1642        }
1643
1644        // All of the dates created through ng-material *should* be set to midnight.
1645        // If we encounter a date where the localeTime shows at 11pm instead of midnight,
1646        // we have run into an issue with DST where we need to increment the hour by one:
1647        // var d = new Date(1992, 9, 8, 0, 0, 0);
1648        // d.toLocaleString(); // == "10/7/1992, 11:00:00 PM"
1649        var localeTime = date.toLocaleTimeString();
1650        var formatDate = date;
1651        if (date.getHours() == 0 &&
1652            (localeTime.indexOf('11:') !== -1 || localeTime.indexOf('23:') !== -1)) {
1653          formatDate = new Date(date.getFullYear(), date.getMonth(), date.getDate(), 1, 0, 0);
1654        }
1655
1656        return $filter('date')(formatDate, 'M/d/yyyy');
1657      }
1658
1659      /**
1660       * Default string-to-date parsing function.
1661       * @param {string} dateString
1662       * @returns {!Date}
1663       */
1664      function defaultParseDate(dateString) {
1665        return new Date(dateString);
1666      }
1667
1668      /**
1669       * Default function to determine whether a string makes sense to be
1670       * parsed to a Date object.
1671       *
1672       * This is very permissive and is just a basic sanity check to ensure that
1673       * things like single integers aren't able to be parsed into dates.
1674       * @param {string} dateString
1675       * @returns {boolean}
1676       */
1677      function defaultIsDateComplete(dateString) {
1678        dateString = dateString.trim();
1679
1680        // Looks for three chunks of content (either numbers or text) separated
1681        // by delimiters.
1682        var re = /^(([a-zA-Z]{3,}|[0-9]{1,4})([ \.,]+|[\/\-])){2}([a-zA-Z]{3,}|[0-9]{1,4})$/;
1683        return re.test(dateString);
1684      }
1685
1686      /**
1687       * Default date-to-string formatter to get a month header.
1688       * @param {!Date} date
1689       * @returns {string}
1690       */
1691      function defaultMonthHeaderFormatter(date) {
1692        return service.shortMonths[date.getMonth()] + ' ' + date.getFullYear();
1693      }
1694
1695      /**
1696       * Default formatter for a month.
1697       * @param {!Date} date
1698       * @returns {string}
1699       */
1700      function defaultMonthFormatter(date) {
1701        return service.months[date.getMonth()] + ' ' + date.getFullYear();
1702      }
1703
1704      /**
1705       * Default week number formatter.
1706       * @param number
1707       * @returns {string}
1708       */
1709      function defaultWeekNumberFormatter(number) {
1710        return 'Week ' + number;
1711      }
1712
1713      /**
1714       * Default formatter for date cell aria-labels.
1715       * @param {!Date} date
1716       * @returns {string}
1717       */
1718      function defaultLongDateFormatter(date) {
1719        // Example: 'Thursday June 18 2015'
1720        return [
1721          service.days[date.getDay()],
1722          service.months[date.getMonth()],
1723          service.dates[date.getDate()],
1724          date.getFullYear()
1725        ].join(' ');
1726      }
1727
1728      // The default "short" day strings are the first character of each day,
1729      // e.g., "Monday" => "M".
1730      var defaultShortDays = $locale.DATETIME_FORMATS.SHORTDAY.map(function(day) {
1731        return day.substring(0, 1);
1732      });
1733
1734      // The default dates are simply the numbers 1 through 31.
1735      var defaultDates = Array(32);
1736      for (var i = 1; i <= 31; i++) {
1737        defaultDates[i] = i;
1738      }
1739
1740      // Default ARIA messages are in English (US).
1741      var defaultMsgCalendar = 'Calendar';
1742      var defaultMsgOpenCalendar = 'Open calendar';
1743
1744      // Default start/end dates that are rendered in the calendar.
1745      var defaultFirstRenderableDate = new Date(1880, 0, 1);
1746      var defaultLastRendereableDate = new Date(defaultFirstRenderableDate.getFullYear() + 250, 0, 1);
1747
1748      var service = {
1749        months: this.months || $locale.DATETIME_FORMATS.MONTH,
1750        shortMonths: this.shortMonths || $locale.DATETIME_FORMATS.SHORTMONTH,
1751        days: this.days || $locale.DATETIME_FORMATS.DAY,
1752        shortDays: this.shortDays || defaultShortDays,
1753        dates: this.dates || defaultDates,
1754        firstDayOfWeek: this.firstDayOfWeek || 0,
1755        formatDate: this.formatDate || defaultFormatDate,
1756        parseDate: this.parseDate || defaultParseDate,
1757        isDateComplete: this.isDateComplete || defaultIsDateComplete,
1758        monthHeaderFormatter: this.monthHeaderFormatter || defaultMonthHeaderFormatter,
1759        monthFormatter: this.monthFormatter || defaultMonthFormatter,
1760        weekNumberFormatter: this.weekNumberFormatter || defaultWeekNumberFormatter,
1761        longDateFormatter: this.longDateFormatter || defaultLongDateFormatter,
1762        msgCalendar: this.msgCalendar || defaultMsgCalendar,
1763        msgOpenCalendar: this.msgOpenCalendar || defaultMsgOpenCalendar,
1764        firstRenderableDate: this.firstRenderableDate || defaultFirstRenderableDate,
1765        lastRenderableDate: this.lastRenderableDate || defaultLastRendereableDate
1766      };
1767
1768      return service;
1769    };
1770    DateLocaleProvider.prototype.$get.$inject = ["$locale", "$filter"];
1771
1772    $provide.provider('$mdDateLocale', new DateLocaleProvider());
1773  }]);
1774})();
1775
1776(function() {
1777  'use strict';
1778
1779  /**
1780   * Utility for performing date calculations to facilitate operation of the calendar and
1781   * datepicker.
1782   */
1783  angular.module('material.components.datepicker').factory('$$mdDateUtil', function() {
1784    return {
1785      getFirstDateOfMonth: getFirstDateOfMonth,
1786      getNumberOfDaysInMonth: getNumberOfDaysInMonth,
1787      getDateInNextMonth: getDateInNextMonth,
1788      getDateInPreviousMonth: getDateInPreviousMonth,
1789      isInNextMonth: isInNextMonth,
1790      isInPreviousMonth: isInPreviousMonth,
1791      getDateMidpoint: getDateMidpoint,
1792      isSameMonthAndYear: isSameMonthAndYear,
1793      getWeekOfMonth: getWeekOfMonth,
1794      incrementDays: incrementDays,
1795      incrementMonths: incrementMonths,
1796      getLastDateOfMonth: getLastDateOfMonth,
1797      isSameDay: isSameDay,
1798      getMonthDistance: getMonthDistance,
1799      isValidDate: isValidDate,
1800      setDateTimeToMidnight: setDateTimeToMidnight,
1801      createDateAtMidnight: createDateAtMidnight,
1802      isDateWithinRange: isDateWithinRange,
1803      incrementYears: incrementYears,
1804      getYearDistance: getYearDistance,
1805      clampDate: clampDate,
1806      getTimestampFromNode: getTimestampFromNode,
1807      isMonthWithinRange: isMonthWithinRange
1808    };
1809
1810    /**
1811     * Gets the first day of the month for the given date's month.
1812     * @param {Date} date
1813     * @returns {Date}
1814     */
1815    function getFirstDateOfMonth(date) {
1816      return new Date(date.getFullYear(), date.getMonth(), 1);
1817    }
1818
1819    /**
1820     * Gets the number of days in the month for the given date's month.
1821     * @param date
1822     * @returns {number}
1823     */
1824    function getNumberOfDaysInMonth(date) {
1825      return new Date(date.getFullYear(), date.getMonth() + 1, 0).getDate();
1826    }
1827
1828    /**
1829     * Get an arbitrary date in the month after the given date's month.
1830     * @param date
1831     * @returns {Date}
1832     */
1833    function getDateInNextMonth(date) {
1834      return new Date(date.getFullYear(), date.getMonth() + 1, 1);
1835    }
1836
1837    /**
1838     * Get an arbitrary date in the month before the given date's month.
1839     * @param date
1840     * @returns {Date}
1841     */
1842    function getDateInPreviousMonth(date) {
1843      return new Date(date.getFullYear(), date.getMonth() - 1, 1);
1844    }
1845
1846    /**
1847     * Gets whether two dates have the same month and year.
1848     * @param {Date} d1
1849     * @param {Date} d2
1850     * @returns {boolean}
1851     */
1852    function isSameMonthAndYear(d1, d2) {
1853      return d1.getFullYear() === d2.getFullYear() && d1.getMonth() === d2.getMonth();
1854    }
1855
1856    /**
1857     * Gets whether two dates are the same day (not not necesarily the same time).
1858     * @param {Date} d1
1859     * @param {Date} d2
1860     * @returns {boolean}
1861     */
1862    function isSameDay(d1, d2) {
1863      return d1.getDate() == d2.getDate() && isSameMonthAndYear(d1, d2);
1864    }
1865
1866    /**
1867     * Gets whether a date is in the month immediately after some date.
1868     * @param {Date} startDate The date from which to compare.
1869     * @param {Date} endDate The date to check.
1870     * @returns {boolean}
1871     */
1872    function isInNextMonth(startDate, endDate) {
1873      var nextMonth = getDateInNextMonth(startDate);
1874      return isSameMonthAndYear(nextMonth, endDate);
1875    }
1876
1877    /**
1878     * Gets whether a date is in the month immediately before some date.
1879     * @param {Date} startDate The date from which to compare.
1880     * @param {Date} endDate The date to check.
1881     * @returns {boolean}
1882     */
1883    function isInPreviousMonth(startDate, endDate) {
1884      var previousMonth = getDateInPreviousMonth(startDate);
1885      return isSameMonthAndYear(endDate, previousMonth);
1886    }
1887
1888    /**
1889     * Gets the midpoint between two dates.
1890     * @param {Date} d1
1891     * @param {Date} d2
1892     * @returns {Date}
1893     */
1894    function getDateMidpoint(d1, d2) {
1895      return createDateAtMidnight((d1.getTime() + d2.getTime()) / 2);
1896    }
1897
1898    /**
1899     * Gets the week of the month that a given date occurs in.
1900     * @param {Date} date
1901     * @returns {number} Index of the week of the month (zero-based).
1902     */
1903    function getWeekOfMonth(date) {
1904      var firstDayOfMonth = getFirstDateOfMonth(date);
1905      return Math.floor((firstDayOfMonth.getDay() + date.getDate() - 1) / 7);
1906    }
1907
1908    /**
1909     * Gets a new date incremented by the given number of days. Number of days can be negative.
1910     * @param {Date} date
1911     * @param {number} numberOfDays
1912     * @returns {Date}
1913     */
1914    function incrementDays(date, numberOfDays) {
1915      return new Date(date.getFullYear(), date.getMonth(), date.getDate() + numberOfDays);
1916    }
1917
1918    /**
1919     * Gets a new date incremented by the given number of months. Number of months can be negative.
1920     * If the date of the given month does not match the target month, the date will be set to the
1921     * last day of the month.
1922     * @param {Date} date
1923     * @param {number} numberOfMonths
1924     * @returns {Date}
1925     */
1926    function incrementMonths(date, numberOfMonths) {
1927      // If the same date in the target month does not actually exist, the Date object will
1928      // automatically advance *another* month by the number of missing days.
1929      // For example, if you try to go from Jan. 30 to Feb. 30, you'll end up on March 2.
1930      // So, we check if the month overflowed and go to the last day of the target month instead.
1931      var dateInTargetMonth = new Date(date.getFullYear(), date.getMonth() + numberOfMonths, 1);
1932      var numberOfDaysInMonth = getNumberOfDaysInMonth(dateInTargetMonth);
1933      if (numberOfDaysInMonth < date.getDate()) {
1934        dateInTargetMonth.setDate(numberOfDaysInMonth);
1935      } else {
1936        dateInTargetMonth.setDate(date.getDate());
1937      }
1938
1939      return dateInTargetMonth;
1940    }
1941
1942    /**
1943     * Get the integer distance between two months. This *only* considers the month and year
1944     * portion of the Date instances.
1945     *
1946     * @param {Date} start
1947     * @param {Date} end
1948     * @returns {number} Number of months between `start` and `end`. If `end` is before `start`
1949     *     chronologically, this number will be negative.
1950     */
1951    function getMonthDistance(start, end) {
1952      return (12 * (end.getFullYear() - start.getFullYear())) + (end.getMonth() - start.getMonth());
1953    }
1954
1955    /**
1956     * Gets the last day of the month for the given date.
1957     * @param {Date} date
1958     * @returns {Date}
1959     */
1960    function getLastDateOfMonth(date) {
1961      return new Date(date.getFullYear(), date.getMonth(), getNumberOfDaysInMonth(date));
1962    }
1963
1964    /**
1965     * Checks whether a date is valid.
1966     * @param {Date} date
1967     * @return {boolean} Whether the date is a valid Date.
1968     */
1969    function isValidDate(date) {
1970      return date != null && date.getTime && !isNaN(date.getTime());
1971    }
1972
1973    /**
1974     * Sets a date's time to midnight.
1975     * @param {Date} date
1976     */
1977    function setDateTimeToMidnight(date) {
1978      if (isValidDate(date)) {
1979        date.setHours(0, 0, 0, 0);
1980      }
1981    }
1982
1983    /**
1984     * Creates a date with the time set to midnight.
1985     * Drop-in replacement for two forms of the Date constructor:
1986     * 1. No argument for Date representing now.
1987     * 2. Single-argument value representing number of seconds since Unix Epoch
1988     * or a Date object.
1989     * @param {number|Date=} opt_value
1990     * @return {Date} New date with time set to midnight.
1991     */
1992    function createDateAtMidnight(opt_value) {
1993      var date;
1994      if (angular.isUndefined(opt_value)) {
1995        date = new Date();
1996      } else {
1997        date = new Date(opt_value);
1998      }
1999      setDateTimeToMidnight(date);
2000      return date;
2001    }
2002
2003     /**
2004      * Checks if a date is within a min and max range, ignoring the time component.
2005      * If minDate or maxDate are not dates, they are ignored.
2006      * @param {Date} date
2007      * @param {Date} minDate
2008      * @param {Date} maxDate
2009      */
2010     function isDateWithinRange(date, minDate, maxDate) {
2011       var dateAtMidnight = createDateAtMidnight(date);
2012       var minDateAtMidnight = isValidDate(minDate) ? createDateAtMidnight(minDate) : null;
2013       var maxDateAtMidnight = isValidDate(maxDate) ? createDateAtMidnight(maxDate) : null;
2014       return (!minDateAtMidnight || minDateAtMidnight <= dateAtMidnight) &&
2015           (!maxDateAtMidnight || maxDateAtMidnight >= dateAtMidnight);
2016     }
2017
2018    /**
2019     * Gets a new date incremented by the given number of years. Number of years can be negative.
2020     * See `incrementMonths` for notes on overflow for specific dates.
2021     * @param {Date} date
2022     * @param {number} numberOfYears
2023     * @returns {Date}
2024     */
2025     function incrementYears(date, numberOfYears) {
2026       return incrementMonths(date, numberOfYears * 12);
2027     }
2028
2029     /**
2030      * Get the integer distance between two years. This *only* considers the year portion of the
2031      * Date instances.
2032      *
2033      * @param {Date} start
2034      * @param {Date} end
2035      * @returns {number} Number of months between `start` and `end`. If `end` is before `start`
2036      *     chronologically, this number will be negative.
2037      */
2038     function getYearDistance(start, end) {
2039       return end.getFullYear() - start.getFullYear();
2040     }
2041
2042     /**
2043      * Clamps a date between a minimum and a maximum date.
2044      * @param {Date} date Date to be clamped
2045      * @param {Date=} minDate Minimum date
2046      * @param {Date=} maxDate Maximum date
2047      * @return {Date}
2048      */
2049     function clampDate(date, minDate, maxDate) {
2050       var boundDate = date;
2051       if (minDate && date < minDate) {
2052         boundDate = new Date(minDate.getTime());
2053       }
2054       if (maxDate && date > maxDate) {
2055         boundDate = new Date(maxDate.getTime());
2056       }
2057       return boundDate;
2058     }
2059
2060     /**
2061      * Extracts and parses the timestamp from a DOM node.
2062      * @param  {HTMLElement} node Node from which the timestamp will be extracted.
2063      * @return {number} Time since epoch.
2064      */
2065     function getTimestampFromNode(node) {
2066       if (node && node.hasAttribute('data-timestamp')) {
2067         return Number(node.getAttribute('data-timestamp'));
2068       }
2069     }
2070
2071     /**
2072      * Checks if a month is within a min and max range, ignoring the date and time components.
2073      * If minDate or maxDate are not dates, they are ignored.
2074      * @param {Date} date
2075      * @param {Date} minDate
2076      * @param {Date} maxDate
2077      */
2078     function isMonthWithinRange(date, minDate, maxDate) {
2079       var month = date.getMonth();
2080       var year = date.getFullYear();
2081
2082       return (!minDate || minDate.getFullYear() < year || minDate.getMonth() <= month) &&
2083        (!maxDate || maxDate.getFullYear() > year || maxDate.getMonth() >= month);
2084     }
2085  });
2086})();
2087
2088(function() {
2089  'use strict';
2090
2091  // POST RELEASE
2092  // TODO(jelbourn): Demo that uses moment.js
2093  // TODO(jelbourn): make sure this plays well with validation and ngMessages.
2094  // TODO(jelbourn): calendar pane doesn't open up outside of visible viewport.
2095  // TODO(jelbourn): forward more attributes to the internal input (required, autofocus, etc.)
2096  // TODO(jelbourn): something better for mobile (calendar panel takes up entire screen?)
2097  // TODO(jelbourn): input behavior (masking? auto-complete?)
2098
2099
2100  DatePickerCtrl.$inject = ["$scope", "$element", "$attrs", "$window", "$mdConstant", "$mdTheming", "$mdUtil", "$mdDateLocale", "$$mdDateUtil", "$$rAF", "$mdGesture", "$filter"];
2101  datePickerDirective.$inject = ["$$mdSvgRegistry", "$mdUtil", "$mdAria", "inputDirective"];
2102  angular.module('material.components.datepicker')
2103      .directive('mdDatepicker', datePickerDirective);
2104
2105  /**
2106   * @ngdoc directive
2107   * @name mdDatepicker
2108   * @module material.components.datepicker
2109   *
2110   * @param {Date} ng-model The component's model. Expects a JavaScript Date object.
2111   * @param {Object=} ng-model-options Allows tuning of the way in which `ng-model` is being updated. Also allows
2112   * for a timezone to be specified. <a href="https://docs.angularjs.org/api/ng/directive/ngModelOptions#usage">Read more at the ngModelOptions docs.</a>
2113   * @param {expression=} ng-change Expression evaluated when the model value changes.
2114   * @param {expression=} ng-focus Expression evaluated when the input is focused or the calendar is opened.
2115   * @param {expression=} ng-blur Expression evaluated when focus is removed from the input or the calendar is closed.
2116   * @param {Date=} md-min-date Expression representing a min date (inclusive).
2117   * @param {Date=} md-max-date Expression representing a max date (inclusive).
2118   * @param {(function(Date): boolean)=} md-date-filter Function expecting a date and returning a boolean whether it can be selected or not.
2119   * @param {String=} md-placeholder The date input placeholder value.
2120   * @param {String=} md-open-on-focus When present, the calendar will be opened when the input is focused.
2121   * @param {Boolean=} md-is-open Expression that can be used to open the datepicker's calendar on-demand.
2122   * @param {String=} md-current-view Default open view of the calendar pane. Can be either "month" or "year".
2123   * @param {String=} md-hide-icons Determines which datepicker icons should be hidden. Note that this may cause the
2124   * datepicker to not align properly with other components. **Use at your own risk.** Possible values are:
2125   * * `"all"` - Hides all icons.
2126   * * `"calendar"` - Only hides the calendar icon.
2127   * * `"triangle"` - Only hides the triangle icon.
2128   * @param {boolean=} ng-disabled Whether the datepicker is disabled.
2129   * @param {boolean=} ng-required Whether a value is required for the datepicker.
2130   *
2131   * @description
2132   * `<md-datepicker>` is a component used to select a single date.
2133   * For information on how to configure internationalization for the date picker,
2134   * see `$mdDateLocaleProvider`.
2135   *
2136   * This component supports [ngMessages](https://docs.angularjs.org/api/ngMessages/directive/ngMessages).
2137   * Supported attributes are:
2138   * * `required`: whether a required date is not set.
2139   * * `mindate`: whether the selected date is before the minimum allowed date.
2140   * * `maxdate`: whether the selected date is after the maximum allowed date.
2141   * * `debounceInterval`: ms to delay input processing (since last debounce reset); default value 500ms
2142   *
2143   * @usage
2144   * <hljs lang="html">
2145   *   <md-datepicker ng-model="birthday"></md-datepicker>
2146   * </hljs>
2147   *
2148   */
2149
2150  function datePickerDirective($$mdSvgRegistry, $mdUtil, $mdAria, inputDirective) {
2151    return {
2152      template: function(tElement, tAttrs) {
2153        // Buttons are not in the tab order because users can open the calendar via keyboard
2154        // interaction on the text input, and multiple tab stops for one component (picker)
2155        // may be confusing.
2156        var hiddenIcons = tAttrs.mdHideIcons;
2157        var ariaLabelValue = tAttrs.ariaLabel || tAttrs.mdPlaceholder;
2158
2159        var calendarButton = (hiddenIcons === 'all' || hiddenIcons === 'calendar') ? '' :
2160          '<md-button class="md-datepicker-button md-icon-button" type="button" ' +
2161              'tabindex="-1" aria-hidden="true" ' +
2162              'ng-click="ctrl.openCalendarPane($event)">' +
2163            '<md-icon class="md-datepicker-calendar-icon" aria-label="md-calendar" ' +
2164                     'md-svg-src="' + $$mdSvgRegistry.mdCalendar + '"></md-icon>' +
2165          '</md-button>';
2166
2167        var triangleButton = (hiddenIcons === 'all' || hiddenIcons === 'triangle') ? '' :
2168          '<md-button type="button" md-no-ink ' +
2169              'class="md-datepicker-triangle-button md-icon-button" ' +
2170              'ng-click="ctrl.openCalendarPane($event)" ' +
2171              'aria-label="{{::ctrl.dateLocale.msgOpenCalendar}}">' +
2172            '<div class="md-datepicker-expand-triangle"></div>' +
2173          '</md-button>';
2174
2175        return calendarButton +
2176        '<div class="md-datepicker-input-container" ng-class="{\'md-datepicker-focused\': ctrl.isFocused}">' +
2177          '<input ' +
2178            (ariaLabelValue ? 'aria-label="' + ariaLabelValue + '" ' : '') +
2179            'class="md-datepicker-input" ' +
2180            'aria-haspopup="true" ' +
2181            'ng-focus="ctrl.setFocused(true)" ' +
2182            'ng-blur="ctrl.setFocused(false)"> ' +
2183            triangleButton +
2184        '</div>' +
2185
2186        // This pane will be detached from here and re-attached to the document body.
2187        '<div class="md-datepicker-calendar-pane md-whiteframe-z1">' +
2188          '<div class="md-datepicker-input-mask">' +
2189            '<div class="md-datepicker-input-mask-opaque"></div>' +
2190          '</div>' +
2191          '<div class="md-datepicker-calendar">' +
2192            '<md-calendar role="dialog" aria-label="{{::ctrl.dateLocale.msgCalendar}}" ' +
2193                'md-current-view="{{::ctrl.currentView}}"' +
2194                'md-min-date="ctrl.minDate"' +
2195                'md-max-date="ctrl.maxDate"' +
2196                'md-date-filter="ctrl.dateFilter"' +
2197                'ng-model="ctrl.date" ng-if="ctrl.isCalendarOpen">' +
2198            '</md-calendar>' +
2199          '</div>' +
2200        '</div>';
2201      },
2202      require: ['ngModel', 'mdDatepicker', '?^mdInputContainer', '?^form'],
2203      scope: {
2204        minDate: '=mdMinDate',
2205        maxDate: '=mdMaxDate',
2206        placeholder: '@mdPlaceholder',
2207        currentView: '@mdCurrentView',
2208        dateFilter: '=mdDateFilter',
2209        isOpen: '=?mdIsOpen',
2210        debounceInterval: '=mdDebounceInterval'
2211      },
2212      controller: DatePickerCtrl,
2213      controllerAs: 'ctrl',
2214      bindToController: true,
2215      link: function(scope, element, attr, controllers) {
2216        var ngModelCtrl = controllers[0];
2217        var mdDatePickerCtrl = controllers[1];
2218        var mdInputContainer = controllers[2];
2219        var parentForm = controllers[3];
2220        var mdNoAsterisk = $mdUtil.parseAttributeBoolean(attr.mdNoAsterisk);
2221
2222        mdDatePickerCtrl.configureNgModel(ngModelCtrl, mdInputContainer, inputDirective);
2223
2224        if (mdInputContainer) {
2225          // We need to move the spacer after the datepicker itself,
2226          // because md-input-container adds it after the
2227          // md-datepicker-input by default. The spacer gets wrapped in a
2228          // div, because it floats and gets aligned next to the datepicker.
2229          // There are easier ways of working around this with CSS (making the
2230          // datepicker 100% wide, change the `display` etc.), however they
2231          // break the alignment with any other form controls.
2232          var spacer = element[0].querySelector('.md-errors-spacer');
2233
2234          if (spacer) {
2235            element.after(angular.element('<div>').append(spacer));
2236          }
2237
2238          mdInputContainer.setHasPlaceholder(attr.mdPlaceholder);
2239          mdInputContainer.input = element;
2240          mdInputContainer.element
2241            .addClass(INPUT_CONTAINER_CLASS)
2242            .toggleClass(HAS_ICON_CLASS, attr.mdHideIcons !== 'calendar' && attr.mdHideIcons !== 'all');
2243
2244          if (!mdInputContainer.label) {
2245            $mdAria.expect(element, 'aria-label', attr.mdPlaceholder);
2246          } else if(!mdNoAsterisk) {
2247            attr.$observe('required', function(value) {
2248              mdInputContainer.label.toggleClass('md-required', !!value);
2249            });
2250          }
2251
2252          scope.$watch(mdInputContainer.isErrorGetter || function() {
2253            return ngModelCtrl.$invalid && (ngModelCtrl.$touched || (parentForm && parentForm.$submitted));
2254          }, mdInputContainer.setInvalid);
2255        } else if (parentForm) {
2256          // If invalid, highlights the input when the parent form is submitted.
2257          var parentSubmittedWatcher = scope.$watch(function() {
2258            return parentForm.$submitted;
2259          }, function(isSubmitted) {
2260            if (isSubmitted) {
2261              mdDatePickerCtrl.updateErrorState();
2262              parentSubmittedWatcher();
2263            }
2264          });
2265        }
2266      }
2267    };
2268  }
2269
2270  /** Additional offset for the input's `size` attribute, which is updated based on its content. */
2271  var EXTRA_INPUT_SIZE = 3;
2272
2273  /** Class applied to the container if the date is invalid. */
2274  var INVALID_CLASS = 'md-datepicker-invalid';
2275
2276  /** Class applied to the datepicker when it's open. */
2277  var OPEN_CLASS = 'md-datepicker-open';
2278
2279  /** Class applied to the md-input-container, if a datepicker is placed inside it */
2280  var INPUT_CONTAINER_CLASS = '_md-datepicker-floating-label';
2281
2282  /** Class to be applied when the calendar icon is enabled. */
2283  var HAS_ICON_CLASS = '_md-datepicker-has-calendar-icon';
2284
2285  /** Default time in ms to debounce input event by. */
2286  var DEFAULT_DEBOUNCE_INTERVAL = 500;
2287
2288  /**
2289   * Height of the calendar pane used to check if the pane is going outside the boundary of
2290   * the viewport. See calendar.scss for how $md-calendar-height is computed; an extra 20px is
2291   * also added to space the pane away from the exact edge of the screen.
2292   *
2293   *  This is computed statically now, but can be changed to be measured if the circumstances
2294   *  of calendar sizing are changed.
2295   */
2296  var CALENDAR_PANE_HEIGHT = 368;
2297
2298  /**
2299   * Width of the calendar pane used to check if the pane is going outside the boundary of
2300   * the viewport. See calendar.scss for how $md-calendar-width is computed; an extra 20px is
2301   * also added to space the pane away from the exact edge of the screen.
2302   *
2303   *  This is computed statically now, but can be changed to be measured if the circumstances
2304   *  of calendar sizing are changed.
2305   */
2306  var CALENDAR_PANE_WIDTH = 360;
2307
2308  /**
2309   * Controller for md-datepicker.
2310   *
2311   * ngInject @constructor
2312   */
2313  function DatePickerCtrl($scope, $element, $attrs, $window, $mdConstant,
2314    $mdTheming, $mdUtil, $mdDateLocale, $$mdDateUtil, $$rAF, $mdGesture, $filter) {
2315
2316    /** @final */
2317    this.$window = $window;
2318
2319    /** @final */
2320    this.dateLocale = $mdDateLocale;
2321
2322    /** @final */
2323    this.dateUtil = $$mdDateUtil;
2324
2325    /** @final */
2326    this.$mdConstant = $mdConstant;
2327
2328    /* @final */
2329    this.$mdUtil = $mdUtil;
2330
2331    /** @final */
2332    this.$$rAF = $$rAF;
2333
2334    /**
2335     * The root document element. This is used for attaching a top-level click handler to
2336     * close the calendar panel when a click outside said panel occurs. We use `documentElement`
2337     * instead of body because, when scrolling is disabled, some browsers consider the body element
2338     * to be completely off the screen and propagate events directly to the html element.
2339     * @type {!angular.JQLite}
2340     */
2341    this.documentElement = angular.element(document.documentElement);
2342
2343    /** @type {!angular.NgModelController} */
2344    this.ngModelCtrl = null;
2345
2346    /** @type {HTMLInputElement} */
2347    this.inputElement = $element[0].querySelector('input');
2348
2349    /** @final {!angular.JQLite} */
2350    this.ngInputElement = angular.element(this.inputElement);
2351
2352    /** @type {HTMLElement} */
2353    this.inputContainer = $element[0].querySelector('.md-datepicker-input-container');
2354
2355    /** @type {HTMLElement} Floating calendar pane. */
2356    this.calendarPane = $element[0].querySelector('.md-datepicker-calendar-pane');
2357
2358    /** @type {HTMLElement} Calendar icon button. */
2359    this.calendarButton = $element[0].querySelector('.md-datepicker-button');
2360
2361    /**
2362     * Element covering everything but the input in the top of the floating calendar pane.
2363     * @type {!angular.JQLite}
2364     */
2365    this.inputMask = angular.element($element[0].querySelector('.md-datepicker-input-mask-opaque'));
2366
2367    /** @final {!angular.JQLite} */
2368    this.$element = $element;
2369
2370    /** @final {!angular.Attributes} */
2371    this.$attrs = $attrs;
2372
2373    /** @final {!angular.Scope} */
2374    this.$scope = $scope;
2375
2376    /** @type {Date} */
2377    this.date = null;
2378
2379    /** @type {boolean} */
2380    this.isFocused = false;
2381
2382    /** @type {boolean} */
2383    this.isDisabled;
2384    this.setDisabled($element[0].disabled || angular.isString($attrs.disabled));
2385
2386    /** @type {boolean} Whether the date-picker's calendar pane is open. */
2387    this.isCalendarOpen = false;
2388
2389    /** @type {boolean} Whether the calendar should open when the input is focused. */
2390    this.openOnFocus = $attrs.hasOwnProperty('mdOpenOnFocus');
2391
2392    /** @final */
2393    this.mdInputContainer = null;
2394
2395    /**
2396     * Element from which the calendar pane was opened. Keep track of this so that we can return
2397     * focus to it when the pane is closed.
2398     * @type {HTMLElement}
2399     */
2400    this.calendarPaneOpenedFrom = null;
2401
2402    /** @type {String} Unique id for the calendar pane. */
2403    this.calendarPane.id = 'md-date-pane' + $mdUtil.nextUid();
2404
2405    /** Pre-bound click handler is saved so that the event listener can be removed. */
2406    this.bodyClickHandler = angular.bind(this, this.handleBodyClick);
2407
2408    /**
2409     * Name of the event that will trigger a close. Necessary to sniff the browser, because
2410     * the resize event doesn't make sense on mobile and can have a negative impact since it
2411     * triggers whenever the browser zooms in on a focused input.
2412     */
2413    this.windowEventName = ($mdGesture.isIos || $mdGesture.isAndroid) ? 'orientationchange' : 'resize';
2414
2415    /** Pre-bound close handler so that the event listener can be removed. */
2416    this.windowEventHandler = $mdUtil.debounce(angular.bind(this, this.closeCalendarPane), 100);
2417
2418    /** Pre-bound handler for the window blur event. Allows for it to be removed later. */
2419    this.windowBlurHandler = angular.bind(this, this.handleWindowBlur);
2420
2421    /** The built-in Angular date filter. */
2422    this.ngDateFilter = $filter('date');
2423
2424    /** @type {Number} Extra margin for the left side of the floating calendar pane. */
2425    this.leftMargin = 20;
2426
2427    /** @type {Number} Extra margin for the top of the floating calendar. Gets determined on the first open. */
2428    this.topMargin = null;
2429
2430    // Unless the user specifies so, the datepicker should not be a tab stop.
2431    // This is necessary because ngAria might add a tabindex to anything with an ng-model
2432    // (based on whether or not the user has turned that particular feature on/off).
2433    if ($attrs.tabindex) {
2434      this.ngInputElement.attr('tabindex', $attrs.tabindex);
2435      $attrs.$set('tabindex', null);
2436    } else {
2437      $attrs.$set('tabindex', '-1');
2438    }
2439
2440    $mdTheming($element);
2441    $mdTheming(angular.element(this.calendarPane));
2442
2443    this.installPropertyInterceptors();
2444    this.attachChangeListeners();
2445    this.attachInteractionListeners();
2446
2447    var self = this;
2448
2449    $scope.$on('$destroy', function() {
2450      self.detachCalendarPane();
2451    });
2452
2453    if ($attrs.mdIsOpen) {
2454      $scope.$watch('ctrl.isOpen', function(shouldBeOpen) {
2455        if (shouldBeOpen) {
2456          self.openCalendarPane({
2457            target: self.inputElement
2458          });
2459        } else {
2460          self.closeCalendarPane();
2461        }
2462      });
2463    }
2464  }
2465
2466  /**
2467   * Sets up the controller's reference to ngModelController and
2468   * applies Angular's `input[type="date"]` directive.
2469   * @param {!angular.NgModelController} ngModelCtrl Instance of the ngModel controller.
2470   * @param {Object} mdInputContainer Instance of the mdInputContainer controller.
2471   * @param {Object} inputDirective Config for Angular's `input` directive.
2472   */
2473  DatePickerCtrl.prototype.configureNgModel = function(ngModelCtrl, mdInputContainer, inputDirective) {
2474    this.ngModelCtrl = ngModelCtrl;
2475    this.mdInputContainer = mdInputContainer;
2476
2477    // The input needs to be [type="date"] in order to be picked up by Angular.
2478    this.$attrs.$set('type', 'date');
2479
2480    // Invoke the `input` directive link function, adding a stub for the element.
2481    // This allows us to re-use Angular's logic for setting the timezone via ng-model-options.
2482    // It works by calling the link function directly which then adds the proper `$parsers` and
2483    // `$formatters` to the ngModel controller.
2484    inputDirective[0].link.pre(this.$scope, {
2485      on: angular.noop,
2486      val: angular.noop,
2487      0: {}
2488    }, this.$attrs, [ngModelCtrl]);
2489
2490    var self = this;
2491
2492    // Responds to external changes to the model value.
2493    self.ngModelCtrl.$formatters.push(function(value) {
2494      if (value && !(value instanceof Date)) {
2495        throw Error('The ng-model for md-datepicker must be a Date instance. ' +
2496            'Currently the model is a: ' + (typeof value));
2497      }
2498
2499      self.date = value;
2500      self.inputElement.value = self.dateLocale.formatDate(value);
2501      self.mdInputContainer && self.mdInputContainer.setHasValue(!!value);
2502      self.resizeInputElement();
2503      self.updateErrorState();
2504
2505      return value;
2506    });
2507
2508    // Responds to external error state changes (e.g. ng-required based on another input).
2509    ngModelCtrl.$viewChangeListeners.unshift(angular.bind(this, this.updateErrorState));
2510  };
2511
2512  /**
2513   * Attach event listeners for both the text input and the md-calendar.
2514   * Events are used instead of ng-model so that updates don't infinitely update the other
2515   * on a change. This should also be more performant than using a $watch.
2516   */
2517  DatePickerCtrl.prototype.attachChangeListeners = function() {
2518    var self = this;
2519
2520    self.$scope.$on('md-calendar-change', function(event, date) {
2521      self.setModelValue(date);
2522      self.date = date;
2523      self.inputElement.value = self.dateLocale.formatDate(date);
2524      self.mdInputContainer && self.mdInputContainer.setHasValue(!!date);
2525      self.closeCalendarPane();
2526      self.resizeInputElement();
2527      self.updateErrorState();
2528    });
2529
2530    self.ngInputElement.on('input', angular.bind(self, self.resizeInputElement));
2531
2532    var debounceInterval = angular.isDefined(this.debounceInterval) ?
2533        this.debounceInterval : DEFAULT_DEBOUNCE_INTERVAL;
2534    self.ngInputElement.on('input', self.$mdUtil.debounce(self.handleInputEvent,
2535        debounceInterval, self));
2536  };
2537
2538  /** Attach event listeners for user interaction. */
2539  DatePickerCtrl.prototype.attachInteractionListeners = function() {
2540    var self = this;
2541    var $scope = this.$scope;
2542    var keyCodes = this.$mdConstant.KEY_CODE;
2543
2544    // Add event listener through angular so that we can triggerHandler in unit tests.
2545    self.ngInputElement.on('keydown', function(event) {
2546      if (event.altKey && event.keyCode == keyCodes.DOWN_ARROW) {
2547        self.openCalendarPane(event);
2548        $scope.$digest();
2549      }
2550    });
2551
2552    if (self.openOnFocus) {
2553      self.ngInputElement.on('focus', angular.bind(self, self.openCalendarPane));
2554      angular.element(self.$window).on('blur', self.windowBlurHandler);
2555
2556      $scope.$on('$destroy', function() {
2557        angular.element(self.$window).off('blur', self.windowBlurHandler);
2558      });
2559    }
2560
2561    $scope.$on('md-calendar-close', function() {
2562      self.closeCalendarPane();
2563    });
2564  };
2565
2566  /**
2567   * Capture properties set to the date-picker and imperitively handle internal changes.
2568   * This is done to avoid setting up additional $watches.
2569   */
2570  DatePickerCtrl.prototype.installPropertyInterceptors = function() {
2571    var self = this;
2572
2573    if (this.$attrs.ngDisabled) {
2574      // The expression is to be evaluated against the directive element's scope and not
2575      // the directive's isolate scope.
2576      var scope = this.$scope.$parent;
2577
2578      if (scope) {
2579        scope.$watch(this.$attrs.ngDisabled, function(isDisabled) {
2580          self.setDisabled(isDisabled);
2581        });
2582      }
2583    }
2584
2585    Object.defineProperty(this, 'placeholder', {
2586      get: function() { return self.inputElement.placeholder; },
2587      set: function(value) { self.inputElement.placeholder = value || ''; }
2588    });
2589  };
2590
2591  /**
2592   * Sets whether the date-picker is disabled.
2593   * @param {boolean} isDisabled
2594   */
2595  DatePickerCtrl.prototype.setDisabled = function(isDisabled) {
2596    this.isDisabled = isDisabled;
2597    this.inputElement.disabled = isDisabled;
2598
2599    if (this.calendarButton) {
2600      this.calendarButton.disabled = isDisabled;
2601    }
2602  };
2603
2604  /**
2605   * Sets the custom ngModel.$error flags to be consumed by ngMessages. Flags are:
2606   *   - mindate: whether the selected date is before the minimum date.
2607   *   - maxdate: whether the selected flag is after the maximum date.
2608   *   - filtered: whether the selected date is allowed by the custom filtering function.
2609   *   - valid: whether the entered text input is a valid date
2610   *
2611   * The 'required' flag is handled automatically by ngModel.
2612   *
2613   * @param {Date=} opt_date Date to check. If not given, defaults to the datepicker's model value.
2614   */
2615  DatePickerCtrl.prototype.updateErrorState = function(opt_date) {
2616    var date = opt_date || this.date;
2617
2618    // Clear any existing errors to get rid of anything that's no longer relevant.
2619    this.clearErrorState();
2620
2621    if (this.dateUtil.isValidDate(date)) {
2622      // Force all dates to midnight in order to ignore the time portion.
2623      date = this.dateUtil.createDateAtMidnight(date);
2624
2625      if (this.dateUtil.isValidDate(this.minDate)) {
2626        var minDate = this.dateUtil.createDateAtMidnight(this.minDate);
2627        this.ngModelCtrl.$setValidity('mindate', date >= minDate);
2628      }
2629
2630      if (this.dateUtil.isValidDate(this.maxDate)) {
2631        var maxDate = this.dateUtil.createDateAtMidnight(this.maxDate);
2632        this.ngModelCtrl.$setValidity('maxdate', date <= maxDate);
2633      }
2634
2635      if (angular.isFunction(this.dateFilter)) {
2636        this.ngModelCtrl.$setValidity('filtered', this.dateFilter(date));
2637      }
2638    } else {
2639      // The date is seen as "not a valid date" if there is *something* set
2640      // (i.e.., not null or undefined), but that something isn't a valid date.
2641      this.ngModelCtrl.$setValidity('valid', date == null);
2642    }
2643
2644    // TODO(jelbourn): Change this to classList.toggle when we stop using PhantomJS in unit tests
2645    // because it doesn't conform to the DOMTokenList spec.
2646    // See https://github.com/ariya/phantomjs/issues/12782.
2647    if (!this.ngModelCtrl.$valid) {
2648      this.inputContainer.classList.add(INVALID_CLASS);
2649    }
2650  };
2651
2652  /** Clears any error flags set by `updateErrorState`. */
2653  DatePickerCtrl.prototype.clearErrorState = function() {
2654    this.inputContainer.classList.remove(INVALID_CLASS);
2655    ['mindate', 'maxdate', 'filtered', 'valid'].forEach(function(field) {
2656      this.ngModelCtrl.$setValidity(field, true);
2657    }, this);
2658  };
2659
2660  /** Resizes the input element based on the size of its content. */
2661  DatePickerCtrl.prototype.resizeInputElement = function() {
2662    this.inputElement.size = this.inputElement.value.length + EXTRA_INPUT_SIZE;
2663  };
2664
2665  /**
2666   * Sets the model value if the user input is a valid date.
2667   * Adds an invalid class to the input element if not.
2668   */
2669  DatePickerCtrl.prototype.handleInputEvent = function() {
2670    var inputString = this.inputElement.value;
2671    var parsedDate = inputString ? this.dateLocale.parseDate(inputString) : null;
2672    this.dateUtil.setDateTimeToMidnight(parsedDate);
2673
2674    // An input string is valid if it is either empty (representing no date)
2675    // or if it parses to a valid date that the user is allowed to select.
2676    var isValidInput = inputString == '' || (
2677      this.dateUtil.isValidDate(parsedDate) &&
2678      this.dateLocale.isDateComplete(inputString) &&
2679      this.isDateEnabled(parsedDate)
2680    );
2681
2682    // The datepicker's model is only updated when there is a valid input.
2683    if (isValidInput) {
2684      this.setModelValue(parsedDate);
2685      this.date = parsedDate;
2686    }
2687
2688    this.updateErrorState(parsedDate);
2689  };
2690
2691  /**
2692   * Check whether date is in range and enabled
2693   * @param {Date=} opt_date
2694   * @return {boolean} Whether the date is enabled.
2695   */
2696  DatePickerCtrl.prototype.isDateEnabled = function(opt_date) {
2697    return this.dateUtil.isDateWithinRange(opt_date, this.minDate, this.maxDate) &&
2698          (!angular.isFunction(this.dateFilter) || this.dateFilter(opt_date));
2699  };
2700
2701  /** Position and attach the floating calendar to the document. */
2702  DatePickerCtrl.prototype.attachCalendarPane = function() {
2703    var calendarPane = this.calendarPane;
2704    var body = document.body;
2705
2706    calendarPane.style.transform = '';
2707    this.$element.addClass(OPEN_CLASS);
2708    this.mdInputContainer && this.mdInputContainer.element.addClass(OPEN_CLASS);
2709    angular.element(body).addClass('md-datepicker-is-showing');
2710
2711    var elementRect = this.inputContainer.getBoundingClientRect();
2712    var bodyRect = body.getBoundingClientRect();
2713
2714    if (!this.topMargin || this.topMargin < 0) {
2715      this.topMargin = (this.inputMask.parent().prop('clientHeight') - this.ngInputElement.prop('clientHeight')) / 2;
2716    }
2717
2718    // Check to see if the calendar pane would go off the screen. If so, adjust position
2719    // accordingly to keep it within the viewport.
2720    var paneTop = elementRect.top - bodyRect.top - this.topMargin;
2721    var paneLeft = elementRect.left - bodyRect.left - this.leftMargin;
2722
2723    // If ng-material has disabled body scrolling (for example, if a dialog is open),
2724    // then it's possible that the already-scrolled body has a negative top/left. In this case,
2725    // we want to treat the "real" top as (0 - bodyRect.top). In a normal scrolling situation,
2726    // though, the top of the viewport should just be the body's scroll position.
2727    var viewportTop = (bodyRect.top < 0 && document.body.scrollTop == 0) ?
2728        -bodyRect.top :
2729        document.body.scrollTop;
2730
2731    var viewportLeft = (bodyRect.left < 0 && document.body.scrollLeft == 0) ?
2732        -bodyRect.left :
2733        document.body.scrollLeft;
2734
2735    var viewportBottom = viewportTop + this.$window.innerHeight;
2736    var viewportRight = viewportLeft + this.$window.innerWidth;
2737
2738    // Creates an overlay with a hole the same size as element. We remove a pixel or two
2739    // on each end to make it overlap slightly. The overlay's background is added in
2740    // the theme in the form of a box-shadow with a huge spread.
2741    this.inputMask.css({
2742      position: 'absolute',
2743      left: this.leftMargin + 'px',
2744      top: this.topMargin + 'px',
2745      width: (elementRect.width - 1) + 'px',
2746      height: (elementRect.height - 2) + 'px'
2747    });
2748
2749    // If the right edge of the pane would be off the screen and shifting it left by the
2750    // difference would not go past the left edge of the screen. If the calendar pane is too
2751    // big to fit on the screen at all, move it to the left of the screen and scale the entire
2752    // element down to fit.
2753    if (paneLeft + CALENDAR_PANE_WIDTH > viewportRight) {
2754      if (viewportRight - CALENDAR_PANE_WIDTH > 0) {
2755        paneLeft = viewportRight - CALENDAR_PANE_WIDTH;
2756      } else {
2757        paneLeft = viewportLeft;
2758        var scale = this.$window.innerWidth / CALENDAR_PANE_WIDTH;
2759        calendarPane.style.transform = 'scale(' + scale + ')';
2760      }
2761
2762      calendarPane.classList.add('md-datepicker-pos-adjusted');
2763    }
2764
2765    // If the bottom edge of the pane would be off the screen and shifting it up by the
2766    // difference would not go past the top edge of the screen.
2767    if (paneTop + CALENDAR_PANE_HEIGHT > viewportBottom &&
2768        viewportBottom - CALENDAR_PANE_HEIGHT > viewportTop) {
2769      paneTop = viewportBottom - CALENDAR_PANE_HEIGHT;
2770      calendarPane.classList.add('md-datepicker-pos-adjusted');
2771    }
2772
2773    calendarPane.style.left = paneLeft + 'px';
2774    calendarPane.style.top = paneTop + 'px';
2775    document.body.appendChild(calendarPane);
2776
2777    // Add CSS class after one frame to trigger open animation.
2778    this.$$rAF(function() {
2779      calendarPane.classList.add('md-pane-open');
2780    });
2781  };
2782
2783  /** Detach the floating calendar pane from the document. */
2784  DatePickerCtrl.prototype.detachCalendarPane = function() {
2785    this.$element.removeClass(OPEN_CLASS);
2786    this.mdInputContainer && this.mdInputContainer.element.removeClass(OPEN_CLASS);
2787    angular.element(document.body).removeClass('md-datepicker-is-showing');
2788    this.calendarPane.classList.remove('md-pane-open');
2789    this.calendarPane.classList.remove('md-datepicker-pos-adjusted');
2790
2791    if (this.isCalendarOpen) {
2792      this.$mdUtil.enableScrolling();
2793    }
2794
2795    if (this.calendarPane.parentNode) {
2796      // Use native DOM removal because we do not want any of the
2797      // angular state of this element to be disposed.
2798      this.calendarPane.parentNode.removeChild(this.calendarPane);
2799    }
2800  };
2801
2802  /**
2803   * Open the floating calendar pane.
2804   * @param {Event} event
2805   */
2806  DatePickerCtrl.prototype.openCalendarPane = function(event) {
2807    if (!this.isCalendarOpen && !this.isDisabled && !this.inputFocusedOnWindowBlur) {
2808      this.isCalendarOpen = this.isOpen = true;
2809      this.calendarPaneOpenedFrom = event.target;
2810
2811      // Because the calendar pane is attached directly to the body, it is possible that the
2812      // rest of the component (input, etc) is in a different scrolling container, such as
2813      // an md-content. This means that, if the container is scrolled, the pane would remain
2814      // stationary. To remedy this, we disable scrolling while the calendar pane is open, which
2815      // also matches the native behavior for things like `<select>` on Mac and Windows.
2816      this.$mdUtil.disableScrollAround(this.calendarPane);
2817
2818      this.attachCalendarPane();
2819      this.focusCalendar();
2820      this.evalAttr('ngFocus');
2821
2822      // Attach click listener inside of a timeout because, if this open call was triggered by a
2823      // click, we don't want it to be immediately propogated up to the body and handled.
2824      var self = this;
2825      this.$mdUtil.nextTick(function() {
2826        // Use 'touchstart` in addition to click in order to work on iOS Safari, where click
2827        // events aren't propogated under most circumstances.
2828        // See http://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
2829        self.documentElement.on('click touchstart', self.bodyClickHandler);
2830      }, false);
2831
2832      window.addEventListener(this.windowEventName, this.windowEventHandler);
2833    }
2834  };
2835
2836  /** Close the floating calendar pane. */
2837  DatePickerCtrl.prototype.closeCalendarPane = function() {
2838    if (this.isCalendarOpen) {
2839      var self = this;
2840
2841      self.detachCalendarPane();
2842      self.ngModelCtrl.$setTouched();
2843      self.evalAttr('ngBlur');
2844
2845      self.documentElement.off('click touchstart', self.bodyClickHandler);
2846      window.removeEventListener(self.windowEventName, self.windowEventHandler);
2847
2848      self.calendarPaneOpenedFrom.focus();
2849      self.calendarPaneOpenedFrom = null;
2850
2851      if (self.openOnFocus) {
2852        // Ensures that all focus events have fired before resetting
2853        // the calendar. Prevents the calendar from reopening immediately
2854        // in IE when md-open-on-focus is set. Also it needs to trigger
2855        // a digest, in order to prevent issues where the calendar wasn't
2856        // showing up on the next open.
2857        self.$mdUtil.nextTick(reset);
2858      } else {
2859        reset();
2860      }
2861    }
2862
2863    function reset(){
2864      self.isCalendarOpen = self.isOpen = false;
2865    }
2866  };
2867
2868  /** Gets the controller instance for the calendar in the floating pane. */
2869  DatePickerCtrl.prototype.getCalendarCtrl = function() {
2870    return angular.element(this.calendarPane.querySelector('md-calendar')).controller('mdCalendar');
2871  };
2872
2873  /** Focus the calendar in the floating pane. */
2874  DatePickerCtrl.prototype.focusCalendar = function() {
2875    // Use a timeout in order to allow the calendar to be rendered, as it is gated behind an ng-if.
2876    var self = this;
2877    this.$mdUtil.nextTick(function() {
2878      self.getCalendarCtrl().focus();
2879    }, false);
2880  };
2881
2882  /**
2883   * Sets whether the input is currently focused.
2884   * @param {boolean} isFocused
2885   */
2886  DatePickerCtrl.prototype.setFocused = function(isFocused) {
2887    if (!isFocused) {
2888      this.ngModelCtrl.$setTouched();
2889    }
2890
2891    // The ng* expressions shouldn't be evaluated when mdOpenOnFocus is on,
2892    // because they also get called when the calendar is opened/closed.
2893    if (!this.openOnFocus) {
2894      this.evalAttr(isFocused ? 'ngFocus' : 'ngBlur');
2895    }
2896
2897    this.isFocused = isFocused;
2898  };
2899
2900  /**
2901   * Handles a click on the document body when the floating calendar pane is open.
2902   * Closes the floating calendar pane if the click is not inside of it.
2903   * @param {MouseEvent} event
2904   */
2905  DatePickerCtrl.prototype.handleBodyClick = function(event) {
2906    if (this.isCalendarOpen) {
2907      var isInCalendar = this.$mdUtil.getClosest(event.target, 'md-calendar');
2908
2909      if (!isInCalendar) {
2910        this.closeCalendarPane();
2911      }
2912
2913      this.$scope.$digest();
2914    }
2915  };
2916
2917  /**
2918   * Handles the event when the user navigates away from the current tab. Keeps track of
2919   * whether the input was focused when the event happened, in order to prevent the calendar
2920   * from re-opening.
2921   */
2922  DatePickerCtrl.prototype.handleWindowBlur = function() {
2923    this.inputFocusedOnWindowBlur = document.activeElement === this.inputElement;
2924  };
2925
2926  /**
2927   * Evaluates an attribute expression against the parent scope.
2928   * @param {String} attr Name of the attribute to be evaluated.
2929   */
2930  DatePickerCtrl.prototype.evalAttr = function(attr) {
2931    if (this.$attrs[attr]) {
2932      this.$scope.$parent.$eval(this.$attrs[attr]);
2933    }
2934  };
2935
2936  /**
2937   * Sets the ng-model value by first converting the date object into a strng. Converting it
2938   * is necessary, in order to pass Angular's `input[type="date"]` validations. Angular turns
2939   * the value into a Date object afterwards, before setting it on the model.
2940   * @param {Date=} value Date to be set as the model value.
2941   */
2942  DatePickerCtrl.prototype.setModelValue = function(value) {
2943    this.ngModelCtrl.$setViewValue(this.ngDateFilter(value, 'yyyy-MM-dd'));
2944  };
2945})();
2946
2947})(window, window.angular);