1/*
   2 Leaflet, a JavaScript library for mobile-friendly interactive maps. http://leafletjs.com
   3 (c) 2010-2013, Vladimir Agafonkin
   4 (c) 2010-2011, CloudMade
   5*/
   6(function (window, document, undefined) {
   7var oldL = window.L,
   8    L = {};
   9
  10L.version = '0.7.7';
  11
  12// define Leaflet for Node module pattern loaders, including Browserify
  13if (typeof module === 'object' && typeof module.exports === 'object') {
  14	module.exports = L;
  15
  16// define Leaflet as an AMD module
  17} else if (typeof define === 'function' && define.amd) {
  18	define(L);
  19}
  20
  21// define Leaflet as a global L variable, saving the original L to restore later if needed
  22
  23L.noConflict = function () {
  24	window.L = oldL;
  25	return this;
  26};
  27
  28window.L = L;
  29
  30
  31/*
  32 * L.Util contains various utility functions used throughout Leaflet code.
  33 */
  34
  35L.Util = {
  36	extend: function (dest) { // (Object[, Object, ...]) ->
  37		var sources = Array.prototype.slice.call(arguments, 1),
  38		    i, j, len, src;
  39
  40		for (j = 0, len = sources.length; j < len; j++) {
  41			src = sources[j] || {};
  42			for (i in src) {
  43				if (src.hasOwnProperty(i)) {
  44					dest[i] = src[i];
  45				}
  46			}
  47		}
  48		return dest;
  49	},
  50
  51	bind: function (fn, obj) { // (Function, Object) -> Function
  52		var args = arguments.length > 2 ? Array.prototype.slice.call(arguments, 2) : null;
  53		return function () {
  54			return fn.apply(obj, args || arguments);
  55		};
  56	},
  57
  58	stamp: (function () {
  59		var lastId = 0,
  60		    key = '_leaflet_id';
  61		return function (obj) {
  62			obj[key] = obj[key] || ++lastId;
  63			return obj[key];
  64		};
  65	}()),
  66
  67	invokeEach: function (obj, method, context) {
  68		var i, args;
  69
  70		if (typeof obj === 'object') {
  71			args = Array.prototype.slice.call(arguments, 3);
  72
  73			for (i in obj) {
  74				method.apply(context, [i, obj[i]].concat(args));
  75			}
  76			return true;
  77		}
  78
  79		return false;
  80	},
  81
  82	limitExecByInterval: function (fn, time, context) {
  83		var lock, execOnUnlock;
  84
  85		return function wrapperFn() {
  86			var args = arguments;
  87
  88			if (lock) {
  89				execOnUnlock = true;
  90				return;
  91			}
  92
  93			lock = true;
  94
  95			setTimeout(function () {
  96				lock = false;
  97
  98				if (execOnUnlock) {
  99					wrapperFn.apply(context, args);
 100					execOnUnlock = false;
 101				}
 102			}, time);
 103
 104			fn.apply(context, args);
 105		};
 106	},
 107
 108	falseFn: function () {
 109		return false;
 110	},
 111
 112	formatNum: function (num, digits) {
 113		var pow = Math.pow(10, digits || 5);
 114		return Math.round(num * pow) / pow;
 115	},
 116
 117	trim: function (str) {
 118		return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, '');
 119	},
 120
 121	splitWords: function (str) {
 122		return L.Util.trim(str).split(/\s+/);
 123	},
 124
 125	setOptions: function (obj, options) {
 126		obj.options = L.extend({}, obj.options, options);
 127		return obj.options;
 128	},
 129
 130	getParamString: function (obj, existingUrl, uppercase) {
 131		var params = [];
 132		for (var i in obj) {
 133			params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i]));
 134		}
 135		return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&');
 136	},
 137	template: function (str, data) {
 138		return str.replace(/\{ *([\w_]+) *\}/g, function (str, key) {
 139			var value = data[key];
 140			if (value === undefined) {
 141				throw new Error('No value provided for variable ' + str);
 142			} else if (typeof value === 'function') {
 143				value = value(data);
 144			}
 145			return value;
 146		});
 147	},
 148
 149	isArray: Array.isArray || function (obj) {
 150		return (Object.prototype.toString.call(obj) === '[object Array]');
 151	},
 152
 153	emptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='
 154};
 155
 156(function () {
 157
 158	// inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/
 159
 160	function getPrefixed(name) {
 161		var i, fn,
 162		    prefixes = ['webkit', 'moz', 'o', 'ms'];
 163
 164		for (i = 0; i < prefixes.length && !fn; i++) {
 165			fn = window[prefixes[i] + name];
 166		}
 167
 168		return fn;
 169	}
 170
 171	var lastTime = 0;
 172
 173	function timeoutDefer(fn) {
 174		var time = +new Date(),
 175		    timeToCall = Math.max(0, 16 - (time - lastTime));
 176
 177		lastTime = time + timeToCall;
 178		return window.setTimeout(fn, timeToCall);
 179	}
 180
 181	var requestFn = window.requestAnimationFrame ||
 182	        getPrefixed('RequestAnimationFrame') || timeoutDefer;
 183
 184	var cancelFn = window.cancelAnimationFrame ||
 185	        getPrefixed('CancelAnimationFrame') ||
 186	        getPrefixed('CancelRequestAnimationFrame') ||
 187	        function (id) { window.clearTimeout(id); };
 188
 189
 190	L.Util.requestAnimFrame = function (fn, context, immediate, element) {
 191		fn = L.bind(fn, context);
 192
 193		if (immediate && requestFn === timeoutDefer) {
 194			fn();
 195		} else {
 196			return requestFn.call(window, fn, element);
 197		}
 198	};
 199
 200	L.Util.cancelAnimFrame = function (id) {
 201		if (id) {
 202			cancelFn.call(window, id);
 203		}
 204	};
 205
 206}());
 207
 208// shortcuts for most used utility functions
 209L.extend = L.Util.extend;
 210L.bind = L.Util.bind;
 211L.stamp = L.Util.stamp;
 212L.setOptions = L.Util.setOptions;
 213
 214
 215/*
 216 * L.Class powers the OOP facilities of the library.
 217 * Thanks to John Resig and Dean Edwards for inspiration!
 218 */
 219
 220L.Class = function () {};
 221
 222L.Class.extend = function (props) {
 223
 224	// extended class with the new prototype
 225	var NewClass = function () {
 226
 227		// call the constructor
 228		if (this.initialize) {
 229			this.initialize.apply(this, arguments);
 230		}
 231
 232		// call all constructor hooks
 233		if (this._initHooks) {
 234			this.callInitHooks();
 235		}
 236	};
 237
 238	// instantiate class without calling constructor
 239	var F = function () {};
 240	F.prototype = this.prototype;
 241
 242	var proto = new F();
 243	proto.constructor = NewClass;
 244
 245	NewClass.prototype = proto;
 246
 247	//inherit parent's statics
 248	for (var i in this) {
 249		if (this.hasOwnProperty(i) && i !== 'prototype') {
 250			NewClass[i] = this[i];
 251		}
 252	}
 253
 254	// mix static properties into the class
 255	if (props.statics) {
 256		L.extend(NewClass, props.statics);
 257		delete props.statics;
 258	}
 259
 260	// mix includes into the prototype
 261	if (props.includes) {
 262		L.Util.extend.apply(null, [proto].concat(props.includes));
 263		delete props.includes;
 264	}
 265
 266	// merge options
 267	if (props.options && proto.options) {
 268		props.options = L.extend({}, proto.options, props.options);
 269	}
 270
 271	// mix given properties into the prototype
 272	L.extend(proto, props);
 273
 274	proto._initHooks = [];
 275
 276	var parent = this;
 277	// jshint camelcase: false
 278	NewClass.__super__ = parent.prototype;
 279
 280	// add method for calling all hooks
 281	proto.callInitHooks = function () {
 282
 283		if (this._initHooksCalled) { return; }
 284
 285		if (parent.prototype.callInitHooks) {
 286			parent.prototype.callInitHooks.call(this);
 287		}
 288
 289		this._initHooksCalled = true;
 290
 291		for (var i = 0, len = proto._initHooks.length; i < len; i++) {
 292			proto._initHooks[i].call(this);
 293		}
 294	};
 295
 296	return NewClass;
 297};
 298
 299
 300// method for adding properties to prototype
 301L.Class.include = function (props) {
 302	L.extend(this.prototype, props);
 303};
 304
 305// merge new default options to the Class
 306L.Class.mergeOptions = function (options) {
 307	L.extend(this.prototype.options, options);
 308};
 309
 310// add a constructor hook
 311L.Class.addInitHook = function (fn) { // (Function) || (String, args...)
 312	var args = Array.prototype.slice.call(arguments, 1);
 313
 314	var init = typeof fn === 'function' ? fn : function () {
 315		this[fn].apply(this, args);
 316	};
 317
 318	this.prototype._initHooks = this.prototype._initHooks || [];
 319	this.prototype._initHooks.push(init);
 320};
 321
 322
 323/*
 324 * L.Mixin.Events is used to add custom events functionality to Leaflet classes.
 325 */
 326
 327var eventsKey = '_leaflet_events';
 328
 329L.Mixin = {};
 330
 331L.Mixin.Events = {
 332
 333	addEventListener: function (types, fn, context) { // (String, Function[, Object]) or (Object[, Object])
 334
 335		// types can be a map of types/handlers
 336		if (L.Util.invokeEach(types, this.addEventListener, this, fn, context)) { return this; }
 337
 338		var events = this[eventsKey] = this[eventsKey] || {},
 339		    contextId = context && context !== this && L.stamp(context),
 340		    i, len, event, type, indexKey, indexLenKey, typeIndex;
 341
 342		// types can be a string of space-separated words
 343		types = L.Util.splitWords(types);
 344
 345		for (i = 0, len = types.length; i < len; i++) {
 346			event = {
 347				action: fn,
 348				context: context || this
 349			};
 350			type = types[i];
 351
 352			if (contextId) {
 353				// store listeners of a particular context in a separate hash (if it has an id)
 354				// gives a major performance boost when removing thousands of map layers
 355
 356				indexKey = type + '_idx';
 357				indexLenKey = indexKey + '_len';
 358
 359				typeIndex = events[indexKey] = events[indexKey] || {};
 360
 361				if (!typeIndex[contextId]) {
 362					typeIndex[contextId] = [];
 363
 364					// keep track of the number of keys in the index to quickly check if it's empty
 365					events[indexLenKey] = (events[indexLenKey] || 0) + 1;
 366				}
 367
 368				typeIndex[contextId].push(event);
 369
 370
 371			} else {
 372				events[type] = events[type] || [];
 373				events[type].push(event);
 374			}
 375		}
 376
 377		return this;
 378	},
 379
 380	hasEventListeners: function (type) { // (String) -> Boolean
 381		var events = this[eventsKey];
 382		return !!events && ((type in events && events[type].length > 0) ||
 383		                    (type + '_idx' in events && events[type + '_idx_len'] > 0));
 384	},
 385
 386	removeEventListener: function (types, fn, context) { // ([String, Function, Object]) or (Object[, Object])
 387
 388		if (!this[eventsKey]) {
 389			return this;
 390		}
 391
 392		if (!types) {
 393			return this.clearAllEventListeners();
 394		}
 395
 396		if (L.Util.invokeEach(types, this.removeEventListener, this, fn, context)) { return this; }
 397
 398		var events = this[eventsKey],
 399		    contextId = context && context !== this && L.stamp(context),
 400		    i, len, type, listeners, j, indexKey, indexLenKey, typeIndex, removed;
 401
 402		types = L.Util.splitWords(types);
 403
 404		for (i = 0, len = types.length; i < len; i++) {
 405			type = types[i];
 406			indexKey = type + '_idx';
 407			indexLenKey = indexKey + '_len';
 408
 409			typeIndex = events[indexKey];
 410
 411			if (!fn) {
 412				// clear all listeners for a type if function isn't specified
 413				delete events[type];
 414				delete events[indexKey];
 415				delete events[indexLenKey];
 416
 417			} else {
 418				listeners = contextId && typeIndex ? typeIndex[contextId] : events[type];
 419
 420				if (listeners) {
 421					for (j = listeners.length - 1; j >= 0; j--) {
 422						if ((listeners[j].action === fn) && (!context || (listeners[j].context === context))) {
 423							removed = listeners.splice(j, 1);
 424							// set the old action to a no-op, because it is possible
 425							// that the listener is being iterated over as part of a dispatch
 426							removed[0].action = L.Util.falseFn;
 427						}
 428					}
 429
 430					if (context && typeIndex && (listeners.length === 0)) {
 431						delete typeIndex[contextId];
 432						events[indexLenKey]--;
 433					}
 434				}
 435			}
 436		}
 437
 438		return this;
 439	},
 440
 441	clearAllEventListeners: function () {
 442		delete this[eventsKey];
 443		return this;
 444	},
 445
 446	fireEvent: function (type, data) { // (String[, Object])
 447		if (!this.hasEventListeners(type)) {
 448			return this;
 449		}
 450
 451		var event = L.Util.extend({}, data, { type: type, target: this });
 452
 453		var events = this[eventsKey],
 454		    listeners, i, len, typeIndex, contextId;
 455
 456		if (events[type]) {
 457			// make sure adding/removing listeners inside other listeners won't cause infinite loop
 458			listeners = events[type].slice();
 459
 460			for (i = 0, len = listeners.length; i < len; i++) {
 461				listeners[i].action.call(listeners[i].context, event);
 462			}
 463		}
 464
 465		// fire event for the context-indexed listeners as well
 466		typeIndex = events[type + '_idx'];
 467
 468		for (contextId in typeIndex) {
 469			listeners = typeIndex[contextId].slice();
 470
 471			if (listeners) {
 472				for (i = 0, len = listeners.length; i < len; i++) {
 473					listeners[i].action.call(listeners[i].context, event);
 474				}
 475			}
 476		}
 477
 478		return this;
 479	},
 480
 481	addOneTimeEventListener: function (types, fn, context) {
 482
 483		if (L.Util.invokeEach(types, this.addOneTimeEventListener, this, fn, context)) { return this; }
 484
 485		var handler = L.bind(function () {
 486			this
 487			    .removeEventListener(types, fn, context)
 488			    .removeEventListener(types, handler, context);
 489		}, this);
 490
 491		return this
 492		    .addEventListener(types, fn, context)
 493		    .addEventListener(types, handler, context);
 494	}
 495};
 496
 497L.Mixin.Events.on = L.Mixin.Events.addEventListener;
 498L.Mixin.Events.off = L.Mixin.Events.removeEventListener;
 499L.Mixin.Events.once = L.Mixin.Events.addOneTimeEventListener;
 500L.Mixin.Events.fire = L.Mixin.Events.fireEvent;
 501
 502
 503/*
 504 * L.Browser handles different browser and feature detections for internal Leaflet use.
 505 */
 506
 507(function () {
 508
 509	var ie = 'ActiveXObject' in window,
 510		ielt9 = ie && !document.addEventListener,
 511
 512	    // terrible browser detection to work around Safari / iOS / Android browser bugs
 513	    ua = navigator.userAgent.toLowerCase(),
 514	    webkit = ua.indexOf('webkit') !== -1,
 515	    chrome = ua.indexOf('chrome') !== -1,
 516	    phantomjs = ua.indexOf('phantom') !== -1,
 517	    android = ua.indexOf('android') !== -1,
 518	    android23 = ua.search('android [23]') !== -1,
 519		gecko = ua.indexOf('gecko') !== -1,
 520
 521	    mobile = typeof orientation !== undefined + '',
 522	    msPointer = !window.PointerEvent && window.MSPointerEvent,
 523		pointer = (window.PointerEvent && window.navigator.pointerEnabled) ||
 524				  msPointer,
 525	    retina = ('devicePixelRatio' in window && window.devicePixelRatio > 1) ||
 526	             ('matchMedia' in window && window.matchMedia('(min-resolution:144dpi)') &&
 527	              window.matchMedia('(min-resolution:144dpi)').matches),
 528
 529	    doc = document.documentElement,
 530	    ie3d = ie && ('transition' in doc.style),
 531	    webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23,
 532	    gecko3d = 'MozPerspective' in doc.style,
 533	    opera3d = 'OTransition' in doc.style,
 534	    any3d = !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d || opera3d) && !phantomjs;
 535
 536	var touch = !window.L_NO_TOUCH && !phantomjs && (pointer || 'ontouchstart' in window ||
 537		(window.DocumentTouch && document instanceof window.DocumentTouch));
 538
 539	L.Browser = {
 540		ie: ie,
 541		ielt9: ielt9,
 542		webkit: webkit,
 543		gecko: gecko && !webkit && !window.opera && !ie,
 544
 545		android: android,
 546		android23: android23,
 547
 548		chrome: chrome,
 549
 550		ie3d: ie3d,
 551		webkit3d: webkit3d,
 552		gecko3d: gecko3d,
 553		opera3d: opera3d,
 554		any3d: any3d,
 555
 556		mobile: mobile,
 557		mobileWebkit: mobile && webkit,
 558		mobileWebkit3d: mobile && webkit3d,
 559		mobileOpera: mobile && window.opera,
 560
 561		touch: touch,
 562		msPointer: msPointer,
 563		pointer: pointer,
 564
 565		retina: retina
 566	};
 567
 568}());
 569
 570
 571/*
 572 * L.Point represents a point with x and y coordinates.
 573 */
 574
 575L.Point = function (/*Number*/ x, /*Number*/ y, /*Boolean*/ round) {
 576	this.x = (round ? Math.round(x) : x);
 577	this.y = (round ? Math.round(y) : y);
 578};
 579
 580L.Point.prototype = {
 581
 582	clone: function () {
 583		return new L.Point(this.x, this.y);
 584	},
 585
 586	// non-destructive, returns a new point
 587	add: function (point) {
 588		return this.clone()._add(L.point(point));
 589	},
 590
 591	// destructive, used directly for performance in situations where it's safe to modify existing point
 592	_add: function (point) {
 593		this.x += point.x;
 594		this.y += point.y;
 595		return this;
 596	},
 597
 598	subtract: function (point) {
 599		return this.clone()._subtract(L.point(point));
 600	},
 601
 602	_subtract: function (point) {
 603		this.x -= point.x;
 604		this.y -= point.y;
 605		return this;
 606	},
 607
 608	divideBy: function (num) {
 609		return this.clone()._divideBy(num);
 610	},
 611
 612	_divideBy: function (num) {
 613		this.x /= num;
 614		this.y /= num;
 615		return this;
 616	},
 617
 618	multiplyBy: function (num) {
 619		return this.clone()._multiplyBy(num);
 620	},
 621
 622	_multiplyBy: function (num) {
 623		this.x *= num;
 624		this.y *= num;
 625		return this;
 626	},
 627
 628	round: function () {
 629		return this.clone()._round();
 630	},
 631
 632	_round: function () {
 633		this.x = Math.round(this.x);
 634		this.y = Math.round(this.y);
 635		return this;
 636	},
 637
 638	floor: function () {
 639		return this.clone()._floor();
 640	},
 641
 642	_floor: function () {
 643		this.x = Math.floor(this.x);
 644		this.y = Math.floor(this.y);
 645		return this;
 646	},
 647
 648	distanceTo: function (point) {
 649		point = L.point(point);
 650
 651		var x = point.x - this.x,
 652		    y = point.y - this.y;
 653
 654		return Math.sqrt(x * x + y * y);
 655	},
 656
 657	equals: function (point) {
 658		point = L.point(point);
 659
 660		return point.x === this.x &&
 661		       point.y === this.y;
 662	},
 663
 664	contains: function (point) {
 665		point = L.point(point);
 666
 667		return Math.abs(point.x) <= Math.abs(this.x) &&
 668		       Math.abs(point.y) <= Math.abs(this.y);
 669	},
 670
 671	toString: function () {
 672		return 'Point(' +
 673		        L.Util.formatNum(this.x) + ', ' +
 674		        L.Util.formatNum(this.y) + ')';
 675	}
 676};
 677
 678L.point = function (x, y, round) {
 679	if (x instanceof L.Point) {
 680		return x;
 681	}
 682	if (L.Util.isArray(x)) {
 683		return new L.Point(x[0], x[1]);
 684	}
 685	if (x === undefined || x === null) {
 686		return x;
 687	}
 688	return new L.Point(x, y, round);
 689};
 690
 691
 692/*
 693 * L.Bounds represents a rectangular area on the screen in pixel coordinates.
 694 */
 695
 696L.Bounds = function (a, b) { //(Point, Point) or Point[]
 697	if (!a) { return; }
 698
 699	var points = b ? [a, b] : a;
 700
 701	for (var i = 0, len = points.length; i < len; i++) {
 702		this.extend(points[i]);
 703	}
 704};
 705
 706L.Bounds.prototype = {
 707	// extend the bounds to contain the given point
 708	extend: function (point) { // (Point)
 709		point = L.point(point);
 710
 711		if (!this.min && !this.max) {
 712			this.min = point.clone();
 713			this.max = point.clone();
 714		} else {
 715			this.min.x = Math.min(point.x, this.min.x);
 716			this.max.x = Math.max(point.x, this.max.x);
 717			this.min.y = Math.min(point.y, this.min.y);
 718			this.max.y = Math.max(point.y, this.max.y);
 719		}
 720		return this;
 721	},
 722
 723	getCenter: function (round) { // (Boolean) -> Point
 724		return new L.Point(
 725		        (this.min.x + this.max.x) / 2,
 726		        (this.min.y + this.max.y) / 2, round);
 727	},
 728
 729	getBottomLeft: function () { // -> Point
 730		return new L.Point(this.min.x, this.max.y);
 731	},
 732
 733	getTopRight: function () { // -> Point
 734		return new L.Point(this.max.x, this.min.y);
 735	},
 736
 737	getSize: function () {
 738		return this.max.subtract(this.min);
 739	},
 740
 741	contains: function (obj) { // (Bounds) or (Point) -> Boolean
 742		var min, max;
 743
 744		if (typeof obj[0] === 'number' || obj instanceof L.Point) {
 745			obj = L.point(obj);
 746		} else {
 747			obj = L.bounds(obj);
 748		}
 749
 750		if (obj instanceof L.Bounds) {
 751			min = obj.min;
 752			max = obj.max;
 753		} else {
 754			min = max = obj;
 755		}
 756
 757		return (min.x >= this.min.x) &&
 758		       (max.x <= this.max.x) &&
 759		       (min.y >= this.min.y) &&
 760		       (max.y <= this.max.y);
 761	},
 762
 763	intersects: function (bounds) { // (Bounds) -> Boolean
 764		bounds = L.bounds(bounds);
 765
 766		var min = this.min,
 767		    max = this.max,
 768		    min2 = bounds.min,
 769		    max2 = bounds.max,
 770		    xIntersects = (max2.x >= min.x) && (min2.x <= max.x),
 771		    yIntersects = (max2.y >= min.y) && (min2.y <= max.y);
 772
 773		return xIntersects && yIntersects;
 774	},
 775
 776	isValid: function () {
 777		return !!(this.min && this.max);
 778	}
 779};
 780
 781L.bounds = function (a, b) { // (Bounds) or (Point, Point) or (Point[])
 782	if (!a || a instanceof L.Bounds) {
 783		return a;
 784	}
 785	return new L.Bounds(a, b);
 786};
 787
 788
 789/*
 790 * L.Transformation is an utility class to perform simple point transformations through a 2d-matrix.
 791 */
 792
 793L.Transformation = function (a, b, c, d) {
 794	this._a = a;
 795	this._b = b;
 796	this._c = c;
 797	this._d = d;
 798};
 799
 800L.Transformation.prototype = {
 801	transform: function (point, scale) { // (Point, Number) -> Point
 802		return this._transform(point.clone(), scale);
 803	},
 804
 805	// destructive transform (faster)
 806	_transform: function (point, scale) {
 807		scale = scale || 1;
 808		point.x = scale * (this._a * point.x + this._b);
 809		point.y = scale * (this._c * point.y + this._d);
 810		return point;
 811	},
 812
 813	untransform: function (point, scale) {
 814		scale = scale || 1;
 815		return new L.Point(
 816		        (point.x / scale - this._b) / this._a,
 817		        (point.y / scale - this._d) / this._c);
 818	}
 819};
 820
 821
 822/*
 823 * L.DomUtil contains various utility functions for working with DOM.
 824 */
 825
 826L.DomUtil = {
 827	get: function (id) {
 828		return (typeof id === 'string' ? document.getElementById(id) : id);
 829	},
 830
 831	getStyle: function (el, style) {
 832
 833		var value = el.style[style];
 834
 835		if (!value && el.currentStyle) {
 836			value = el.currentStyle[style];
 837		}
 838
 839		if ((!value || value === 'auto') && document.defaultView) {
 840			var css = document.defaultView.getComputedStyle(el, null);
 841			value = css ? css[style] : null;
 842		}
 843
 844		return value === 'auto' ? null : value;
 845	},
 846
 847	getViewportOffset: function (element) {
 848
 849		var top = 0,
 850		    left = 0,
 851		    el = element,
 852		    docBody = document.body,
 853		    docEl = document.documentElement,
 854		    pos;
 855
 856		do {
 857			top  += el.offsetTop  || 0;
 858			left += el.offsetLeft || 0;
 859
 860			//add borders
 861			top += parseInt(L.DomUtil.getStyle(el, 'borderTopWidth'), 10) || 0;
 862			left += parseInt(L.DomUtil.getStyle(el, 'borderLeftWidth'), 10) || 0;
 863
 864			pos = L.DomUtil.getStyle(el, 'position');
 865
 866			if (el.offsetParent === docBody && pos === 'absolute') { break; }
 867
 868			if (pos === 'fixed') {
 869				top  += docBody.scrollTop  || docEl.scrollTop  || 0;
 870				left += docBody.scrollLeft || docEl.scrollLeft || 0;
 871				break;
 872			}
 873
 874			if (pos === 'relative' && !el.offsetLeft) {
 875				var width = L.DomUtil.getStyle(el, 'width'),
 876				    maxWidth = L.DomUtil.getStyle(el, 'max-width'),
 877				    r = el.getBoundingClientRect();
 878
 879				if (width !== 'none' || maxWidth !== 'none') {
 880					left += r.left + el.clientLeft;
 881				}
 882
 883				//calculate full y offset since we're breaking out of the loop
 884				top += r.top + (docBody.scrollTop  || docEl.scrollTop  || 0);
 885
 886				break;
 887			}
 888
 889			el = el.offsetParent;
 890
 891		} while (el);
 892
 893		el = element;
 894
 895		do {
 896			if (el === docBody) { break; }
 897
 898			top  -= el.scrollTop  || 0;
 899			left -= el.scrollLeft || 0;
 900
 901			el = el.parentNode;
 902		} while (el);
 903
 904		return new L.Point(left, top);
 905	},
 906
 907	documentIsLtr: function () {
 908		if (!L.DomUtil._docIsLtrCached) {
 909			L.DomUtil._docIsLtrCached = true;
 910			L.DomUtil._docIsLtr = L.DomUtil.getStyle(document.body, 'direction') === 'ltr';
 911		}
 912		return L.DomUtil._docIsLtr;
 913	},
 914
 915	create: function (tagName, className, container) {
 916
 917		var el = document.createElement(tagName);
 918		el.className = className;
 919
 920		if (container) {
 921			container.appendChild(el);
 922		}
 923
 924		return el;
 925	},
 926
 927	hasClass: function (el, name) {
 928		if (el.classList !== undefined) {
 929			return el.classList.contains(name);
 930		}
 931		var className = L.DomUtil._getClass(el);
 932		return className.length > 0 && new RegExp('(^|\\s)' + name + '(\\s|$)').test(className);
 933	},
 934
 935	addClass: function (el, name) {
 936		if (el.classList !== undefined) {
 937			var classes = L.Util.splitWords(name);
 938			for (var i = 0, len = classes.length; i < len; i++) {
 939				el.classList.add(classes[i]);
 940			}
 941		} else if (!L.DomUtil.hasClass(el, name)) {
 942			var className = L.DomUtil._getClass(el);
 943			L.DomUtil._setClass(el, (className ? className + ' ' : '') + name);
 944		}
 945	},
 946
 947	removeClass: function (el, name) {
 948		if (el.classList !== undefined) {
 949			el.classList.remove(name);
 950		} else {
 951			L.DomUtil._setClass(el, L.Util.trim((' ' + L.DomUtil._getClass(el) + ' ').replace(' ' + name + ' ', ' ')));
 952		}
 953	},
 954
 955	_setClass: function (el, name) {
 956		if (el.className.baseVal === undefined) {
 957			el.className = name;
 958		} else {
 959			// in case of SVG element
 960			el.className.baseVal = name;
 961		}
 962	},
 963
 964	_getClass: function (el) {
 965		return el.className.baseVal === undefined ? el.className : el.className.baseVal;
 966	},
 967
 968	setOpacity: function (el, value) {
 969
 970		if ('opacity' in el.style) {
 971			el.style.opacity = value;
 972
 973		} else if ('filter' in el.style) {
 974
 975			var filter = false,
 976			    filterName = 'DXImageTransform.Microsoft.Alpha';
 977
 978			// filters collection throws an error if we try to retrieve a filter that doesn't exist
 979			try {
 980				filter = el.filters.item(filterName);
 981			} catch (e) {
 982				// don't set opacity to 1 if we haven't already set an opacity,
 983				// it isn't needed and breaks transparent pngs.
 984				if (value === 1) { return; }
 985			}
 986
 987			value = Math.round(value * 100);
 988
 989			if (filter) {
 990				filter.Enabled = (value !== 100);
 991				filter.Opacity = value;
 992			} else {
 993				el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')';
 994			}
 995		}
 996	},
 997
 998	testProp: function (props) {
 999
1000		var style = document.documentElement.style;
1001
1002		for (var i = 0; i < props.length; i++) {
1003			if (props[i] in style) {
1004				return props[i];
1005			}
1006		}
1007		return false;
1008	},
1009
1010	getTranslateString: function (point) {
1011		// on WebKit browsers (Chrome/Safari/iOS Safari/Android) using translate3d instead of translate
1012		// makes animation smoother as it ensures HW accel is used. Firefox 13 doesn't care
1013		// (same speed either way), Opera 12 doesn't support translate3d
1014
1015		var is3d = L.Browser.webkit3d,
1016		    open = 'translate' + (is3d ? '3d' : '') + '(',
1017		    close = (is3d ? ',0' : '') + ')';
1018
1019		return open + point.x + 'px,' + point.y + 'px' + close;
1020	},
1021
1022	getScaleString: function (scale, origin) {
1023
1024		var preTranslateStr = L.DomUtil.getTranslateString(origin.add(origin.multiplyBy(-1 * scale))),
1025		    scaleStr = ' scale(' + scale + ') ';
1026
1027		return preTranslateStr + scaleStr;
1028	},
1029
1030	setPosition: function (el, point, disable3D) { // (HTMLElement, Point[, Boolean])
1031
1032		// jshint camelcase: false
1033		el._leaflet_pos = point;
1034
1035		if (!disable3D && L.Browser.any3d) {
1036			el.style[L.DomUtil.TRANSFORM] =  L.DomUtil.getTranslateString(point);
1037		} else {
1038			el.style.left = point.x + 'px';
1039			el.style.top = point.y + 'px';
1040		}
1041	},
1042
1043	getPosition: function (el) {
1044		// this method is only used for elements previously positioned using setPosition,
1045		// so it's safe to cache the position for performance
1046
1047		// jshint camelcase: false
1048		return el._leaflet_pos;
1049	}
1050};
1051
1052
1053// prefix style property names
1054
1055L.DomUtil.TRANSFORM = L.DomUtil.testProp(
1056        ['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']);
1057
1058// webkitTransition comes first because some browser versions that drop vendor prefix don't do
1059// the same for the transitionend event, in particular the Android 4.1 stock browser
1060
1061L.DomUtil.TRANSITION = L.DomUtil.testProp(
1062        ['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']);
1063
1064L.DomUtil.TRANSITION_END =
1065        L.DomUtil.TRANSITION === 'webkitTransition' || L.DomUtil.TRANSITION === 'OTransition' ?
1066        L.DomUtil.TRANSITION + 'End' : 'transitionend';
1067
1068(function () {
1069    if ('onselectstart' in document) {
1070        L.extend(L.DomUtil, {
1071            disableTextSelection: function () {
1072                L.DomEvent.on(window, 'selectstart', L.DomEvent.preventDefault);
1073            },
1074
1075            enableTextSelection: function () {
1076                L.DomEvent.off(window, 'selectstart', L.DomEvent.preventDefault);
1077            }
1078        });
1079    } else {
1080        var userSelectProperty = L.DomUtil.testProp(
1081            ['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']);
1082
1083        L.extend(L.DomUtil, {
1084            disableTextSelection: function () {
1085                if (userSelectProperty) {
1086                    var style = document.documentElement.style;
1087                    this._userSelect = style[userSelectProperty];
1088                    style[userSelectProperty] = 'none';
1089                }
1090            },
1091
1092            enableTextSelection: function () {
1093                if (userSelectProperty) {
1094                    document.documentElement.style[userSelectProperty] = this._userSelect;
1095                    delete this._userSelect;
1096                }
1097            }
1098        });
1099    }
1100
1101	L.extend(L.DomUtil, {
1102		disableImageDrag: function () {
1103			L.DomEvent.on(window, 'dragstart', L.DomEvent.preventDefault);
1104		},
1105
1106		enableImageDrag: function () {
1107			L.DomEvent.off(window, 'dragstart', L.DomEvent.preventDefault);
1108		}
1109	});
1110})();
1111
1112
1113/*
1114 * L.LatLng represents a geographical point with latitude and longitude coordinates.
1115 */
1116
1117L.LatLng = function (lat, lng, alt) { // (Number, Number, Number)
1118	lat = parseFloat(lat);
1119	lng = parseFloat(lng);
1120
1121	if (isNaN(lat) || isNaN(lng)) {
1122		throw new Error('Invalid LatLng object: (' + lat + ', ' + lng + ')');
1123	}
1124
1125	this.lat = lat;
1126	this.lng = lng;
1127
1128	if (alt !== undefined) {
1129		this.alt = parseFloat(alt);
1130	}
1131};
1132
1133L.extend(L.LatLng, {
1134	DEG_TO_RAD: Math.PI / 180,
1135	RAD_TO_DEG: 180 / Math.PI,
1136	MAX_MARGIN: 1.0E-9 // max margin of error for the "equals" check
1137});
1138
1139L.LatLng.prototype = {
1140	equals: function (obj) { // (LatLng) -> Boolean
1141		if (!obj) { return false; }
1142
1143		obj = L.latLng(obj);
1144
1145		var margin = Math.max(
1146		        Math.abs(this.lat - obj.lat),
1147		        Math.abs(this.lng - obj.lng));
1148
1149		return margin <= L.LatLng.MAX_MARGIN;
1150	},
1151
1152	toString: function (precision) { // (Number) -> String
1153		return 'LatLng(' +
1154		        L.Util.formatNum(this.lat, precision) + ', ' +
1155		        L.Util.formatNum(this.lng, precision) + ')';
1156	},
1157
1158	// Haversine distance formula, see http://en.wikipedia.org/wiki/Haversine_formula
1159	// TODO move to projection code, LatLng shouldn't know about Earth
1160	distanceTo: function (other) { // (LatLng) -> Number
1161		other = L.latLng(other);
1162
1163		var R = 6378137, // earth radius in meters
1164		    d2r = L.LatLng.DEG_TO_RAD,
1165		    dLat = (other.lat - this.lat) * d2r,
1166		    dLon = (other.lng - this.lng) * d2r,
1167		    lat1 = this.lat * d2r,
1168		    lat2 = other.lat * d2r,
1169		    sin1 = Math.sin(dLat / 2),
1170		    sin2 = Math.sin(dLon / 2);
1171
1172		var a = sin1 * sin1 + sin2 * sin2 * Math.cos(lat1) * Math.cos(lat2);
1173
1174		return R * 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
1175	},
1176
1177	wrap: function (a, b) { // (Number, Number) -> LatLng
1178		var lng = this.lng;
1179
1180		a = a || -180;
1181		b = b ||  180;
1182
1183		lng = (lng + b) % (b - a) + (lng < a || lng === b ? b : a);
1184
1185		return new L.LatLng(this.lat, lng);
1186	}
1187};
1188
1189L.latLng = function (a, b) { // (LatLng) or ([Number, Number]) or (Number, Number)
1190	if (a instanceof L.LatLng) {
1191		return a;
1192	}
1193	if (L.Util.isArray(a)) {
1194		if (typeof a[0] === 'number' || typeof a[0] === 'string') {
1195			return new L.LatLng(a[0], a[1], a[2]);
1196		} else {
1197			return null;
1198		}
1199	}
1200	if (a === undefined || a === null) {
1201		return a;
1202	}
1203	if (typeof a === 'object' && 'lat' in a) {
1204		return new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon);
1205	}
1206	if (b === undefined) {
1207		return null;
1208	}
1209	return new L.LatLng(a, b);
1210};
1211
1212
1213
1214/*
1215 * L.LatLngBounds represents a rectangular area on the map in geographical coordinates.
1216 */
1217
1218L.LatLngBounds = function (southWest, northEast) { // (LatLng, LatLng) or (LatLng[])
1219	if (!southWest) { return; }
1220
1221	var latlngs = northEast ? [southWest, northEast] : southWest;
1222
1223	for (var i = 0, len = latlngs.length; i < len; i++) {
1224		this.extend(latlngs[i]);
1225	}
1226};
1227
1228L.LatLngBounds.prototype = {
1229	// extend the bounds to contain the given point or bounds
1230	extend: function (obj) { // (LatLng) or (LatLngBounds)
1231		if (!obj) { return this; }
1232
1233		var latLng = L.latLng(obj);
1234		if (latLng !== null) {
1235			obj = latLng;
1236		} else {
1237			obj = L.latLngBounds(obj);
1238		}
1239
1240		if (obj instanceof L.LatLng) {
1241			if (!this._southWest && !this._northEast) {
1242				this._southWest = new L.LatLng(obj.lat, obj.lng);
1243				this._northEast = new L.LatLng(obj.lat, obj.lng);
1244			} else {
1245				this._southWest.lat = Math.min(obj.lat, this._southWest.lat);
1246				this._southWest.lng = Math.min(obj.lng, this._southWest.lng);
1247
1248				this._northEast.lat = Math.max(obj.lat, this._northEast.lat);
1249				this._northEast.lng = Math.max(obj.lng, this._northEast.lng);
1250			}
1251		} else if (obj instanceof L.LatLngBounds) {
1252			this.extend(obj._southWest);
1253			this.extend(obj._northEast);
1254		}
1255		return this;
1256	},
1257
1258	// extend the bounds by a percentage
1259	pad: function (bufferRatio) { // (Number) -> LatLngBounds
1260		var sw = this._southWest,
1261		    ne = this._northEast,
1262		    heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio,
1263		    widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio;
1264
1265		return new L.LatLngBounds(
1266		        new L.LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer),
1267		        new L.LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer));
1268	},
1269
1270	getCenter: function () { // -> LatLng
1271		return new L.LatLng(
1272		        (this._southWest.lat + this._northEast.lat) / 2,
1273		        (this._southWest.lng + this._northEast.lng) / 2);
1274	},
1275
1276	getSouthWest: function () {
1277		return this._southWest;
1278	},
1279
1280	getNorthEast: function () {
1281		return this._northEast;
1282	},
1283
1284	getNorthWest: function () {
1285		return new L.LatLng(this.getNorth(), this.getWest());
1286	},
1287
1288	getSouthEast: function () {
1289		return new L.LatLng(this.getSouth(), this.getEast());
1290	},
1291
1292	getWest: function () {
1293		return this._southWest.lng;
1294	},
1295
1296	getSouth: function () {
1297		return this._southWest.lat;
1298	},
1299
1300	getEast: function () {
1301		return this._northEast.lng;
1302	},
1303
1304	getNorth: function () {
1305		return this._northEast.lat;
1306	},
1307
1308	contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean
1309		if (typeof obj[0] === 'number' || obj instanceof L.LatLng) {
1310			obj = L.latLng(obj);
1311		} else {
1312			obj = L.latLngBounds(obj);
1313		}
1314
1315		var sw = this._southWest,
1316		    ne = this._northEast,
1317		    sw2, ne2;
1318
1319		if (obj instanceof L.LatLngBounds) {
1320			sw2 = obj.getSouthWest();
1321			ne2 = obj.getNorthEast();
1322		} else {
1323			sw2 = ne2 = obj;
1324		}
1325
1326		return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) &&
1327		       (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng);
1328	},
1329
1330	intersects: function (bounds) { // (LatLngBounds)
1331		bounds = L.latLngBounds(bounds);
1332
1333		var sw = this._southWest,
1334		    ne = this._northEast,
1335		    sw2 = bounds.getSouthWest(),
1336		    ne2 = bounds.getNorthEast(),
1337
1338		    latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat),
1339		    lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng);
1340
1341		return latIntersects && lngIntersects;
1342	},
1343
1344	toBBoxString: function () {
1345		return [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(',');
1346	},
1347
1348	equals: function (bounds) { // (LatLngBounds)
1349		if (!bounds) { return false; }
1350
1351		bounds = L.latLngBounds(bounds);
1352
1353		return this._southWest.equals(bounds.getSouthWest()) &&
1354		       this._northEast.equals(bounds.getNorthEast());
1355	},
1356
1357	isValid: function () {
1358		return !!(this._southWest && this._northEast);
1359	}
1360};
1361
1362//TODO International date line?
1363
1364L.latLngBounds = function (a, b) { // (LatLngBounds) or (LatLng, LatLng)
1365	if (!a || a instanceof L.LatLngBounds) {
1366		return a;
1367	}
1368	return new L.LatLngBounds(a, b);
1369};
1370
1371
1372/*
1373 * L.Projection contains various geographical projections used by CRS classes.
1374 */
1375
1376L.Projection = {};
1377
1378
1379/*
1380 * Spherical Mercator is the most popular map projection, used by EPSG:3857 CRS used by default.
1381 */
1382
1383L.Projection.SphericalMercator = {
1384	MAX_LATITUDE: 85.0511287798,
1385
1386	project: function (latlng) { // (LatLng) -> Point
1387		var d = L.LatLng.DEG_TO_RAD,
1388		    max = this.MAX_LATITUDE,
1389		    lat = Math.max(Math.min(max, latlng.lat), -max),
1390		    x = latlng.lng * d,
1391		    y = lat * d;
1392
1393		y = Math.log(Math.tan((Math.PI / 4) + (y / 2)));
1394
1395		return new L.Point(x, y);
1396	},
1397
1398	unproject: function (point) { // (Point, Boolean) -> LatLng
1399		var d = L.LatLng.RAD_TO_DEG,
1400		    lng = point.x * d,
1401		    lat = (2 * Math.atan(Math.exp(point.y)) - (Math.PI / 2)) * d;
1402
1403		return new L.LatLng(lat, lng);
1404	}
1405};
1406
1407
1408/*
1409 * Simple equirectangular (Plate Carree) projection, used by CRS like EPSG:4326 and Simple.
1410 */
1411
1412L.Projection.LonLat = {
1413	project: function (latlng) {
1414		return new L.Point(latlng.lng, latlng.lat);
1415	},
1416
1417	unproject: function (point) {
1418		return new L.LatLng(point.y, point.x);
1419	}
1420};
1421
1422
1423/*
1424 * L.CRS is a base object for all defined CRS (Coordinate Reference Systems) in Leaflet.
1425 */
1426
1427L.CRS = {
1428	latLngToPoint: function (latlng, zoom) { // (LatLng, Number) -> Point
1429		var projectedPoint = this.projection.project(latlng),
1430		    scale = this.scale(zoom);
1431
1432		return this.transformation._transform(projectedPoint, scale);
1433	},
1434
1435	pointToLatLng: function (point, zoom) { // (Point, Number[, Boolean]) -> LatLng
1436		var scale = this.scale(zoom),
1437		    untransformedPoint = this.transformation.untransform(point, scale);
1438
1439		return this.projection.unproject(untransformedPoint);
1440	},
1441
1442	project: function (latlng) {
1443		return this.projection.project(latlng);
1444	},
1445
1446	scale: function (zoom) {
1447		return 256 * Math.pow(2, zoom);
1448	},
1449
1450	getSize: function (zoom) {
1451		var s = this.scale(zoom);
1452		return L.point(s, s);
1453	}
1454};
1455
1456
1457/*
1458 * A simple CRS that can be used for flat non-Earth maps like panoramas or game maps.
1459 */
1460
1461L.CRS.Simple = L.extend({}, L.CRS, {
1462	projection: L.Projection.LonLat,
1463	transformation: new L.Transformation(1, 0, -1, 0),
1464
1465	scale: function (zoom) {
1466		return Math.pow(2, zoom);
1467	}
1468});
1469
1470
1471/*
1472 * L.CRS.EPSG3857 (Spherical Mercator) is the most common CRS for web mapping
1473 * and is used by Leaflet by default.
1474 */
1475
1476L.CRS.EPSG3857 = L.extend({}, L.CRS, {
1477	code: 'EPSG:3857',
1478
1479	projection: L.Projection.SphericalMercator,
1480	transformation: new L.Transformation(0.5 / Math.PI, 0.5, -0.5 / Math.PI, 0.5),
1481
1482	project: function (latlng) { // (LatLng) -> Point
1483		var projectedPoint = this.projection.project(latlng),
1484		    earthRadius = 6378137;
1485		return projectedPoint.multiplyBy(earthRadius);
1486	}
1487});
1488
1489L.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, {
1490	code: 'EPSG:900913'
1491});
1492
1493
1494/*
1495 * L.CRS.EPSG4326 is a CRS popular among advanced GIS specialists.
1496 */
1497
1498L.CRS.EPSG4326 = L.extend({}, L.CRS, {
1499	code: 'EPSG:4326',
1500
1501	projection: L.Projection.LonLat,
1502	transformation: new L.Transformation(1 / 360, 0.5, -1 / 360, 0.5)
1503});
1504
1505
1506/*
1507 * L.Map is the central class of the API - it is used to create a map.
1508 */
1509
1510L.Map = L.Class.extend({
1511
1512	includes: L.Mixin.Events,
1513
1514	options: {
1515		crs: L.CRS.EPSG3857,
1516
1517		/*
1518		center: LatLng,
1519		zoom: Number,
1520		layers: Array,
1521		*/
1522
1523		fadeAnimation: L.DomUtil.TRANSITION && !L.Browser.android23,
1524		trackResize: true,
1525		markerZoomAnimation: L.DomUtil.TRANSITION && L.Browser.any3d
1526	},
1527
1528	initialize: function (id, options) { // (HTMLElement or String, Object)
1529		options = L.setOptions(this, options);
1530
1531
1532		this._initContainer(id);
1533		this._initLayout();
1534
1535		// hack for https://github.com/Leaflet/Leaflet/issues/1980
1536		this._onResize = L.bind(this._onResize, this);
1537
1538		this._initEvents();
1539
1540		if (options.maxBounds) {
1541			this.setMaxBounds(options.maxBounds);
1542		}
1543
1544		if (options.center && options.zoom !== undefined) {
1545			this.setView(L.latLng(options.center), options.zoom, {reset: true});
1546		}
1547
1548		this._handlers = [];
1549
1550		this._layers = {};
1551		this._zoomBoundLayers = {};
1552		this._tileLayersNum = 0;
1553
1554		this.callInitHooks();
1555
1556		this._addLayers(options.layers);
1557	},
1558
1559
1560	// public methods that modify map state
1561
1562	// replaced by animation-powered implementation in Map.PanAnimation.js
1563	setView: function (center, zoom) {
1564		zoom = zoom === undefined ? this.getZoom() : zoom;
1565		this._resetView(L.latLng(center), this._limitZoom(zoom));
1566		return this;
1567	},
1568
1569	setZoom: function (zoom, options) {
1570		if (!this._loaded) {
1571			this._zoom = this._limitZoom(zoom);
1572			return this;
1573		}
1574		return this.setView(this.getCenter(), zoom, {zoom: options});
1575	},
1576
1577	zoomIn: function (delta, options) {
1578		return this.setZoom(this._zoom + (delta || 1), options);
1579	},
1580
1581	zoomOut: function (delta, options) {
1582		return this.setZoom(this._zoom - (delta || 1), options);
1583	},
1584
1585	setZoomAround: function (latlng, zoom, options) {
1586		var scale = this.getZoomScale(zoom),
1587		    viewHalf = this.getSize().divideBy(2),
1588		    containerPoint = latlng instanceof L.Point ? latlng : this.latLngToContainerPoint(latlng),
1589
1590		    centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale),
1591		    newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset));
1592
1593		return this.setView(newCenter, zoom, {zoom: options});
1594	},
1595
1596	fitBounds: function (bounds, options) {
1597
1598		options = options || {};
1599		bounds = bounds.getBounds ? bounds.getBounds() : L.latLngBounds(bounds);
1600
1601		var paddingTL = L.point(options.paddingTopLeft || options.padding || [0, 0]),
1602		    paddingBR = L.point(options.paddingBottomRight || options.padding || [0, 0]),
1603
1604		    zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR));
1605
1606		zoom = (options.maxZoom) ? Math.min(options.maxZoom, zoom) : zoom;
1607
1608		var paddingOffset = paddingBR.subtract(paddingTL).divideBy(2),
1609
1610		    swPoint = this.project(bounds.getSouthWest(), zoom),
1611		    nePoint = this.project(bounds.getNorthEast(), zoom),
1612		    center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom);
1613
1614		return this.setView(center, zoom, options);
1615	},
1616
1617	fitWorld: function (options) {
1618		return this.fitBounds([[-90, -180], [90, 180]], options);
1619	},
1620
1621	panTo: function (center, options) { // (LatLng)
1622		return this.setView(center, this._zoom, {pan: options});
1623	},
1624
1625	panBy: function (offset) { // (Point)
1626		// replaced with animated panBy in Map.PanAnimation.js
1627		this.fire('movestart');
1628
1629		this._rawPanBy(L.point(offset));
1630
1631		this.fire('move');
1632		return this.fire('moveend');
1633	},
1634
1635	setMaxBounds: function (bounds) {
1636		bounds = L.latLngBounds(bounds);
1637
1638		this.options.maxBounds = bounds;
1639
1640		if (!bounds) {
1641			return this.off('moveend', this._panInsideMaxBounds, this);
1642		}
1643
1644		if (this._loaded) {
1645			this._panInsideMaxBounds();
1646		}
1647
1648		return this.on('moveend', this._panInsideMaxBounds, this);
1649	},
1650
1651	panInsideBounds: function (bounds, options) {
1652		var center = this.getCenter(),
1653			newCenter = this._limitCenter(center, this._zoom, bounds);
1654
1655		if (center.equals(newCenter)) { return this; }
1656
1657		return this.panTo(newCenter, options);
1658	},
1659
1660	addLayer: function (layer) {
1661		// TODO method is too big, refactor
1662
1663		var id = L.stamp(layer);
1664
1665		if (this._layers[id]) { return this; }
1666
1667		this._layers[id] = layer;
1668
1669		// TODO getMaxZoom, getMinZoom in ILayer (instead of options)
1670		if (layer.options && (!isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom))) {
1671			this._zoomBoundLayers[id] = layer;
1672			this._updateZoomLevels();
1673		}
1674
1675		// TODO looks ugly, refactor!!!
1676		if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) {
1677			this._tileLayersNum++;
1678			this._tileLayersToLoad++;
1679			layer.on('load', this._onTileLayerLoad, this);
1680		}
1681
1682		if (this._loaded) {
1683			this._layerAdd(layer);
1684		}
1685
1686		return this;
1687	},
1688
1689	removeLayer: function (layer) {
1690		var id = L.stamp(layer);
1691
1692		if (!this._layers[id]) { return this; }
1693
1694		if (this._loaded) {
1695			layer.onRemove(this);
1696		}
1697
1698		delete this._layers[id];
1699
1700		if (this._loaded) {
1701			this.fire('layerremove', {layer: layer});
1702		}
1703
1704		if (this._zoomBoundLayers[id]) {
1705			delete this._zoomBoundLayers[id];
1706			this._updateZoomLevels();
1707		}
1708
1709		// TODO looks ugly, refactor
1710		if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) {
1711			this._tileLayersNum--;
1712			this._tileLayersToLoad--;
1713			layer.off('load', this._onTileLayerLoad, this);
1714		}
1715
1716		return this;
1717	},
1718
1719	hasLayer: function (layer) {
1720		if (!layer) { return false; }
1721
1722		return (L.stamp(layer) in this._layers);
1723	},
1724
1725	eachLayer: function (method, context) {
1726		for (var i in this._layers) {
1727			method.call(context, this._layers[i]);
1728		}
1729		return this;
1730	},
1731
1732	invalidateSize: function (options) {
1733		if (!this._loaded) { return this; }
1734
1735		options = L.extend({
1736			animate: false,
1737			pan: true
1738		}, options === true ? {animate: true} : options);
1739
1740		var oldSize = this.getSize();
1741		this._sizeChanged = true;
1742		this._initialCenter = null;
1743
1744		var newSize = this.getSize(),
1745		    oldCenter = oldSize.divideBy(2).round(),
1746		    newCenter = newSize.divideBy(2).round(),
1747		    offset = oldCenter.subtract(newCenter);
1748
1749		if (!offset.x && !offset.y) { return this; }
1750
1751		if (options.animate && options.pan) {
1752			this.panBy(offset);
1753
1754		} else {
1755			if (options.pan) {
1756				this._rawPanBy(offset);
1757			}
1758
1759			this.fire('move');
1760
1761			if (options.debounceMoveend) {
1762				clearTimeout(this._sizeTimer);
1763				this._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200);
1764			} else {
1765				this.fire('moveend');
1766			}
1767		}
1768
1769		return this.fire('resize', {
1770			oldSize: oldSize,
1771			newSize: newSize
1772		});
1773	},
1774
1775	// TODO handler.addTo
1776	addHandler: function (name, HandlerClass) {
1777		if (!HandlerClass) { return this; }
1778
1779		var handler = this[name] = new HandlerClass(this);
1780
1781		this._handlers.push(handler);
1782
1783		if (this.options[name]) {
1784			handler.enable();
1785		}
1786
1787		return this;
1788	},
1789
1790	remove: function () {
1791		if (this._loaded) {
1792			this.fire('unload');
1793		}
1794
1795		this._initEvents('off');
1796
1797		try {
1798			// throws error in IE6-8
1799			delete this._container._leaflet;
1800		} catch (e) {
1801			this._container._leaflet = undefined;
1802		}
1803
1804		this._clearPanes();
1805		if (this._clearControlPos) {
1806			this._clearControlPos();
1807		}
1808
1809		this._clearHandlers();
1810
1811		return this;
1812	},
1813
1814
1815	// public methods for getting map state
1816
1817	getCenter: function () { // (Boolean) -> LatLng
1818		this._checkIfLoaded();
1819
1820		if (this._initialCenter && !this._moved()) {
1821			return this._initialCenter;
1822		}
1823		return this.layerPointToLatLng(this._getCenterLayerPoint());
1824	},
1825
1826	getZoom: function () {
1827		return this._zoom;
1828	},
1829
1830	getBounds: function () {
1831		var bounds = this.getPixelBounds(),
1832		    sw = this.unproject(bounds.getBottomLeft()),
1833		    ne = this.unproject(bounds.getTopRight());
1834
1835		return new L.LatLngBounds(sw, ne);
1836	},
1837
1838	getMinZoom: function () {
1839		return this.options.minZoom === undefined ?
1840			(this._layersMinZoom === undefined ? 0 : this._layersMinZoom) :
1841			this.options.minZoom;
1842	},
1843
1844	getMaxZoom: function () {
1845		return this.options.maxZoom === undefined ?
1846			(this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) :
1847			this.options.maxZoom;
1848	},
1849
1850	getBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number
1851		bounds = L.latLngBounds(bounds);
1852
1853		var zoom = this.getMinZoom() - (inside ? 1 : 0),
1854		    maxZoom = this.getMaxZoom(),
1855		    size = this.getSize(),
1856
1857		    nw = bounds.getNorthWest(),
1858		    se = bounds.getSouthEast(),
1859
1860		    zoomNotFound = true,
1861		    boundsSize;
1862
1863		padding = L.point(padding || [0, 0]);
1864
1865		do {
1866			zoom++;
1867			boundsSize = this.project(se, zoom).subtract(this.project(nw, zoom)).add(padding);
1868			zoomNotFound = !inside ? size.contains(boundsSize) : boundsSize.x < size.x || boundsSize.y < size.y;
1869
1870		} while (zoomNotFound && zoom <= maxZoom);
1871
1872		if (zoomNotFound && inside) {
1873			return null;
1874		}
1875
1876		return inside ? zoom : zoom - 1;
1877	},
1878
1879	getSize: function () {
1880		if (!this._size || this._sizeChanged) {
1881			this._size = new L.Point(
1882				this._container.clientWidth,
1883				this._container.clientHeight);
1884
1885			this._sizeChanged = false;
1886		}
1887		return this._size.clone();
1888	},
1889
1890	getPixelBounds: function () {
1891		var topLeftPoint = this._getTopLeftPoint();
1892		return new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize()));
1893	},
1894
1895	getPixelOrigin: function () {
1896		this._checkIfLoaded();
1897		return this._initialTopLeftPoint;
1898	},
1899
1900	getPanes: function () {
1901		return this._panes;
1902	},
1903
1904	getContainer: function () {
1905		return this._container;
1906	},
1907
1908
1909	// TODO replace with universal implementation after refactoring projections
1910
1911	getZoomScale: function (toZoom) {
1912		var crs = this.options.crs;
1913		return crs.scale(toZoom) / crs.scale(this._zoom);
1914	},
1915
1916	getScaleZoom: function (scale) {
1917		return this._zoom + (Math.log(scale) / Math.LN2);
1918	},
1919
1920
1921	// conversion methods
1922
1923	project: function (latlng, zoom) { // (LatLng[, Number]) -> Point
1924		zoom = zoom === undefined ? this._zoom : zoom;
1925		return this.options.crs.latLngToPoint(L.latLng(latlng), zoom);
1926	},
1927
1928	unproject: function (point, zoom) { // (Point[, Number]) -> LatLng
1929		zoom = zoom === undefined ? this._zoom : zoom;
1930		return this.options.crs.pointToLatLng(L.point(point), zoom);
1931	},
1932
1933	layerPointToLatLng: function (point) { // (Point)
1934		var projectedPoint = L.point(point).add(this.getPixelOrigin());
1935		return this.unproject(projectedPoint);
1936	},
1937
1938	latLngToLayerPoint: function (latlng) { // (LatLng)
1939		var projectedPoint = this.project(L.latLng(latlng))._round();
1940		return projectedPoint._subtract(this.getPixelOrigin());
1941	},
1942
1943	containerPointToLayerPoint: function (point) { // (Point)
1944		return L.point(point).subtract(this._getMapPanePos());
1945	},
1946
1947	layerPointToContainerPoint: function (point) { // (Point)
1948		return L.point(point).add(this._getMapPanePos());
1949	},
1950
1951	containerPointToLatLng: function (point) {
1952		var layerPoint = this.containerPointToLayerPoint(L.point(point));
1953		return this.layerPointToLatLng(layerPoint);
1954	},
1955
1956	latLngToContainerPoint: function (latlng) {
1957		return this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng)));
1958	},
1959
1960	mouseEventToContainerPoint: function (e) { // (MouseEvent)
1961		return L.DomEvent.getMousePosition(e, this._container);
1962	},
1963
1964	mouseEventToLayerPoint: function (e) { // (MouseEvent)
1965		return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e));
1966	},
1967
1968	mouseEventToLatLng: function (e) { // (MouseEvent)
1969		return this.layerPointToLatLng(this.mouseEventToLayerPoint(e));
1970	},
1971
1972
1973	// map initialization methods
1974
1975	_initContainer: function (id) {
1976		var container = this._container = L.DomUtil.get(id);
1977
1978		if (!container) {
1979			throw new Error('Map container not found.');
1980		} else if (container._leaflet) {
1981			throw new Error('Map container is already initialized.');
1982		}
1983
1984		container._leaflet = true;
1985	},
1986
1987	_initLayout: function () {
1988		var container = this._container;
1989
1990		L.DomUtil.addClass(container, 'leaflet-container' +
1991			(L.Browser.touch ? ' leaflet-touch' : '') +
1992			(L.Browser.retina ? ' leaflet-retina' : '') +
1993			(L.Browser.ielt9 ? ' leaflet-oldie' : '') +
1994			(this.options.fadeAnimation ? ' leaflet-fade-anim' : ''));
1995
1996		var position = L.DomUtil.getStyle(container, 'position');
1997
1998		if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') {
1999			container.style.position = 'relative';
2000		}
2001
2002		this._initPanes();
2003
2004		if (this._initControlPos) {
2005			this._initControlPos();
2006		}
2007	},
2008
2009	_initPanes: function () {
2010		var panes = this._panes = {};
2011
2012		this._mapPane = panes.mapPane = this._createPane('leaflet-map-pane', this._container);
2013
2014		this._tilePane = panes.tilePane = this._createPane('leaflet-tile-pane', this._mapPane);
2015		panes.objectsPane = this._createPane('leaflet-objects-pane', this._mapPane);
2016		panes.shadowPane = this._createPane('leaflet-shadow-pane');
2017		panes.overlayPane = this._createPane('leaflet-overlay-pane');
2018		panes.markerPane = this._createPane('leaflet-marker-pane');
2019		panes.popupPane = this._createPane('leaflet-popup-pane');
2020
2021		var zoomHide = ' leaflet-zoom-hide';
2022
2023		if (!this.options.markerZoomAnimation) {
2024			L.DomUtil.addClass(panes.markerPane, zoomHide);
2025			L.DomUtil.addClass(panes.shadowPane, zoomHide);
2026			L.DomUtil.addClass(panes.popupPane, zoomHide);
2027		}
2028	},
2029
2030	_createPane: function (className, container) {
2031		return L.DomUtil.create('div', className, container || this._panes.objectsPane);
2032	},
2033
2034	_clearPanes: function () {
2035		this._container.removeChild(this._mapPane);
2036	},
2037
2038	_addLayers: function (layers) {
2039		layers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : [];
2040
2041		for (var i = 0, len = layers.length; i < len; i++) {
2042			this.addLayer(layers[i]);
2043		}
2044	},
2045
2046
2047	// private methods that modify map state
2048
2049	_resetView: function (center, zoom, preserveMapOffset, afterZoomAnim) {
2050
2051		var zoomChanged = (this._zoom !== zoom);
2052
2053		if (!afterZoomAnim) {
2054			this.fire('movestart');
2055
2056			if (zoomChanged) {
2057				this.fire('zoomstart');
2058			}
2059		}
2060
2061		this._zoom = zoom;
2062		this._initialCenter = center;
2063
2064		this._initialTopLeftPoint = this._getNewTopLeftPoint(center);
2065
2066		if (!preserveMapOffset) {
2067			L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));
2068		} else {
2069			this._initialTopLeftPoint._add(this._getMapPanePos());
2070		}
2071
2072		this._tileLayersToLoad = this._tileLayersNum;
2073
2074		var loading = !this._loaded;
2075		this._loaded = true;
2076
2077		this.fire('viewreset', {hard: !preserveMapOffset});
2078
2079		if (loading) {
2080			this.fire('load');
2081			this.eachLayer(this._layerAdd, this);
2082		}
2083
2084		this.fire('move');
2085
2086		if (zoomChanged || afterZoomAnim) {
2087			this.fire('zoomend');
2088		}
2089
2090		this.fire('moveend', {hard: !preserveMapOffset});
2091	},
2092
2093	_rawPanBy: function (offset) {
2094		L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset));
2095	},
2096
2097	_getZoomSpan: function () {
2098		return this.getMaxZoom() - this.getMinZoom();
2099	},
2100
2101	_updateZoomLevels: function () {
2102		var i,
2103			minZoom = Infinity,
2104			maxZoom = -Infinity,
2105			oldZoomSpan = this._getZoomSpan();
2106
2107		for (i in this._zoomBoundLayers) {
2108			var layer = this._zoomBoundLayers[i];
2109			if (!isNaN(layer.options.minZoom)) {
2110				minZoom = Math.min(minZoom, layer.options.minZoom);
2111			}
2112			if (!isNaN(layer.options.maxZoom)) {
2113				maxZoom = Math.max(maxZoom, layer.options.maxZoom);
2114			}
2115		}
2116
2117		if (i === undefined) { // we have no tilelayers
2118			this._layersMaxZoom = this._layersMinZoom = undefined;
2119		} else {
2120			this._layersMaxZoom = maxZoom;
2121			this._layersMinZoom = minZoom;
2122		}
2123
2124		if (oldZoomSpan !== this._getZoomSpan()) {
2125			this.fire('zoomlevelschange');
2126		}
2127	},
2128
2129	_panInsideMaxBounds: function () {
2130		this.panInsideBounds(this.options.maxBounds);
2131	},
2132
2133	_checkIfLoaded: function () {
2134		if (!this._loaded) {
2135			throw new Error('Set map center and zoom first.');
2136		}
2137	},
2138
2139	// map events
2140
2141	_initEvents: function (onOff) {
2142		if (!L.DomEvent) { return; }
2143
2144		onOff = onOff || 'on';
2145
2146		L.DomEvent[onOff](this._container, 'click', this._onMouseClick, this);
2147
2148		var events = ['dblclick', 'mousedown', 'mouseup', 'mouseenter',
2149		              'mouseleave', 'mousemove', 'contextmenu'],
2150		    i, len;
2151
2152		for (i = 0, len = events.length; i < len; i++) {
2153			L.DomEvent[onOff](this._container, events[i], this._fireMouseEvent, this);
2154		}
2155
2156		if (this.options.trackResize) {
2157			L.DomEvent[onOff](window, 'resize', this._onResize, this);
2158		}
2159	},
2160
2161	_onResize: function () {
2162		L.Util.cancelAnimFrame(this._resizeRequest);
2163		this._resizeRequest = L.Util.requestAnimFrame(
2164		        function () { this.invalidateSize({debounceMoveend: true}); }, this, false, this._container);
2165	},
2166
2167	_onMouseClick: function (e) {
2168		if (!this._loaded || (!e._simulated &&
2169		        ((this.dragging && this.dragging.moved()) ||
2170		         (this.boxZoom  && this.boxZoom.moved()))) ||
2171		            L.DomEvent._skipped(e)) { return; }
2172
2173		this.fire('preclick');
2174		this._fireMouseEvent(e);
2175	},
2176
2177	_fireMouseEvent: function (e) {
2178		if (!this._loaded || L.DomEvent._skipped(e)) { return; }
2179
2180		var type = e.type;
2181
2182		type = (type === 'mouseenter' ? 'mouseover' : (type === 'mouseleave' ? 'mouseout' : type));
2183
2184		if (!this.hasEventListeners(type)) { return; }
2185
2186		if (type === 'contextmenu') {
2187			L.DomEvent.preventDefault(e);
2188		}
2189
2190		var containerPoint = this.mouseEventToContainerPoint(e),
2191		    layerPoint = this.containerPointToLayerPoint(containerPoint),
2192		    latlng = this.layerPointToLatLng(layerPoint);
2193
2194		this.fire(type, {
2195			latlng: latlng,
2196			layerPoint: layerPoint,
2197			containerPoint: containerPoint,
2198			originalEvent: e
2199		});
2200	},
2201
2202	_onTileLayerLoad: function () {
2203		this._tileLayersToLoad--;
2204		if (this._tileLayersNum && !this._tileLayersToLoad) {
2205			this.fire('tilelayersload');
2206		}
2207	},
2208
2209	_clearHandlers: function () {
2210		for (var i = 0, len = this._handlers.length; i < len; i++) {
2211			this._handlers[i].disable();
2212		}
2213	},
2214
2215	whenReady: function (callback, context) {
2216		if (this._loaded) {
2217			callback.call(context || this, this);
2218		} else {
2219			this.on('load', callback, context);
2220		}
2221		return this;
2222	},
2223
2224	_layerAdd: function (layer) {
2225		layer.onAdd(this);
2226		this.fire('layeradd', {layer: layer});
2227	},
2228
2229
2230	// private methods for getting map state
2231
2232	_getMapPanePos: function () {
2233		return L.DomUtil.getPosition(this._mapPane);
2234	},
2235
2236	_moved: function () {
2237		var pos = this._getMapPanePos();
2238		return pos && !pos.equals([0, 0]);
2239	},
2240
2241	_getTopLeftPoint: function () {
2242		return this.getPixelOrigin().subtract(this._getMapPanePos());
2243	},
2244
2245	_getNewTopLeftPoint: function (center, zoom) {
2246		var viewHalf = this.getSize()._divideBy(2);
2247		// TODO round on display, not calculation to increase precision?
2248		return this.project(center, zoom)._subtract(viewHalf)._round();
2249	},
2250
2251	_latLngToNewLayerPoint: function (latlng, newZoom, newCenter) {
2252		var topLeft = this._getNewTopLeftPoint(newCenter, newZoom).add(this._getMapPanePos());
2253		return this.project(latlng, newZoom)._subtract(topLeft);
2254	},
2255
2256	// layer point of the current center
2257	_getCenterLayerPoint: function () {
2258		return this.containerPointToLayerPoint(this.getSize()._divideBy(2));
2259	},
2260
2261	// offset of the specified place to the current center in pixels
2262	_getCenterOffset: function (latlng) {
2263		return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint());
2264	},
2265
2266	// adjust center for view to get inside bounds
2267	_limitCenter: function (center, zoom, bounds) {
2268
2269		if (!bounds) { return center; }
2270
2271		var centerPoint = this.project(center, zoom),
2272		    viewHalf = this.getSize().divideBy(2),
2273		    viewBounds = new L.Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)),
2274		    offset = this._getBoundsOffset(viewBounds, bounds, zoom);
2275
2276		return this.unproject(centerPoint.add(offset), zoom);
2277	},
2278
2279	// adjust offset for view to get inside bounds
2280	_limitOffset: function (offset, bounds) {
2281		if (!bounds) { return offset; }
2282
2283		var viewBounds = this.getPixelBounds(),
2284		    newBounds = new L.Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset));
2285
2286		return offset.add(this._getBoundsOffset(newBounds, bounds));
2287	},
2288
2289	// returns offset needed for pxBounds to get inside maxBounds at a specified zoom
2290	_getBoundsOffset: function (pxBounds, maxBounds, zoom) {
2291		var nwOffset = this.project(maxBounds.getNorthWest(), zoom).subtract(pxBounds.min),
2292		    seOffset = this.project(maxBounds.getSouthEast(), zoom).subtract(pxBounds.max),
2293
2294		    dx = this._rebound(nwOffset.x, -seOffset.x),
2295		    dy = this._rebound(nwOffset.y, -seOffset.y);
2296
2297		return new L.Point(dx, dy);
2298	},
2299
2300	_rebound: function (left, right) {
2301		return left + right > 0 ?
2302			Math.round(left - right) / 2 :
2303			Math.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right));
2304	},
2305
2306	_limitZoom: function (zoom) {
2307		var min = this.getMinZoom(),
2308		    max = this.getMaxZoom();
2309
2310		return Math.max(min, Math.min(max, zoom));
2311	}
2312});
2313
2314L.map = function (id, options) {
2315	return new L.Map(id, options);
2316};
2317
2318
2319/*
2320 * Mercator projection that takes into account that the Earth is not a perfect sphere.
2321 * Less popular than spherical mercator; used by projections like EPSG:3395.
2322 */
2323
2324L.Projection.Mercator = {
2325	MAX_LATITUDE: 85.0840591556,
2326
2327	R_MINOR: 6356752.314245179,
2328	R_MAJOR: 6378137,
2329
2330	project: function (latlng) { // (LatLng) -> Point
2331		var d = L.LatLng.DEG_TO_RAD,
2332		    max = this.MAX_LATITUDE,
2333		    lat = Math.max(Math.min(max, latlng.lat), -max),
2334		    r = this.R_MAJOR,
2335		    r2 = this.R_MINOR,
2336		    x = latlng.lng * d * r,
2337		    y = lat * d,
2338		    tmp = r2 / r,
2339		    eccent = Math.sqrt(1.0 - tmp * tmp),
2340		    con = eccent * Math.sin(y);
2341
2342		con = Math.pow((1 - con) / (1 + con), eccent * 0.5);
2343
2344		var ts = Math.tan(0.5 * ((Math.PI * 0.5) - y)) / con;
2345		y = -r * Math.log(ts);
2346
2347		return new L.Point(x, y);
2348	},
2349
2350	unproject: function (point) { // (Point, Boolean) -> LatLng
2351		var d = L.LatLng.RAD_TO_DEG,
2352		    r = this.R_MAJOR,
2353		    r2 = this.R_MINOR,
2354		    lng = point.x * d / r,
2355		    tmp = r2 / r,
2356		    eccent = Math.sqrt(1 - (tmp * tmp)),
2357		    ts = Math.exp(- point.y / r),
2358		    phi = (Math.PI / 2) - 2 * Math.atan(ts),
2359		    numIter = 15,
2360		    tol = 1e-7,
2361		    i = numIter,
2362		    dphi = 0.1,
2363		    con;
2364
2365		while ((Math.abs(dphi) > tol) && (--i > 0)) {
2366			con = eccent * Math.sin(phi);
2367			dphi = (Math.PI / 2) - 2 * Math.atan(ts *
2368			            Math.pow((1.0 - con) / (1.0 + con), 0.5 * eccent)) - phi;
2369			phi += dphi;
2370		}
2371
2372		return new L.LatLng(phi * d, lng);
2373	}
2374};
2375
2376
2377
2378L.CRS.EPSG3395 = L.extend({}, L.CRS, {
2379	code: 'EPSG:3395',
2380
2381	projection: L.Projection.Mercator,
2382
2383	transformation: (function () {
2384		var m = L.Projection.Mercator,
2385		    r = m.R_MAJOR,
2386		    scale = 0.5 / (Math.PI * r);
2387
2388		return new L.Transformation(scale, 0.5, -scale, 0.5);
2389	}())
2390});
2391
2392
2393/*
2394 * L.TileLayer is used for standard xyz-numbered tile layers.
2395 */
2396
2397L.TileLayer = L.Class.extend({
2398	includes: L.Mixin.Events,
2399
2400	options: {
2401		minZoom: 0,
2402		maxZoom: 18,
2403		tileSize: 256,
2404		subdomains: 'abc',
2405		errorTileUrl: '',
2406		attribution: '',
2407		zoomOffset: 0,
2408		opacity: 1,
2409		/*
2410		maxNativeZoom: null,
2411		zIndex: null,
2412		tms: false,
2413		continuousWorld: false,
2414		noWrap: false,
2415		zoomReverse: false,
2416		detectRetina: false,
2417		reuseTiles: false,
2418		bounds: false,
2419		*/
2420		unloadInvisibleTiles: L.Browser.mobile,
2421		updateWhenIdle: L.Browser.mobile
2422	},
2423
2424	initialize: function (url, options) {
2425		options = L.setOptions(this, options);
2426
2427		// detecting retina displays, adjusting tileSize and zoom levels
2428		if (options.detectRetina && L.Browser.retina && options.maxZoom > 0) {
2429
2430			options.tileSize = Math.floor(options.tileSize / 2);
2431			options.zoomOffset++;
2432
2433			if (options.minZoom > 0) {
2434				options.minZoom--;
2435			}
2436			this.options.maxZoom--;
2437		}
2438
2439		if (options.bounds) {
2440			options.bounds = L.latLngBounds(options.bounds);
2441		}
2442
2443		this._url = url;
2444
2445		var subdomains = this.options.subdomains;
2446
2447		if (typeof subdomains === 'string') {
2448			this.options.subdomains = subdomains.split('');
2449		}
2450	},
2451
2452	onAdd: function (map) {
2453		this._map = map;
2454		this._animated = map._zoomAnimated;
2455
2456		// create a container div for tiles
2457		this._initContainer();
2458
2459		// set up events
2460		map.on({
2461			'viewreset': this._reset,
2462			'moveend': this._update
2463		}, this);
2464
2465		if (this._animated) {
2466			map.on({
2467				'zoomanim': this._animateZoom,
2468				'zoomend': this._endZoomAnim
2469			}, this);
2470		}
2471
2472		if (!this.options.updateWhenIdle) {
2473			this._limitedUpdate = L.Util.limitExecByInterval(this._update, 150, this);
2474			map.on('move', this._limitedUpdate, this);
2475		}
2476
2477		this._reset();
2478		this._update();
2479	},
2480
2481	addTo: function (map) {
2482		map.addLayer(this);
2483		return this;
2484	},
2485
2486	onRemove: function (map) {
2487		this._container.parentNode.removeChild(this._container);
2488
2489		map.off({
2490			'viewreset': this._reset,
2491			'moveend': this._update
2492		}, this);
2493
2494		if (this._animated) {
2495			map.off({
2496				'zoomanim': this._animateZoom,
2497				'zoomend': this._endZoomAnim
2498			}, this);
2499		}
2500
2501		if (!this.options.updateWhenIdle) {
2502			map.off('move', this._limitedUpdate, this);
2503		}
2504
2505		this._container = null;
2506		this._map = null;
2507	},
2508
2509	bringToFront: function () {
2510		var pane = this._map._panes.tilePane;
2511
2512		if (this._container) {
2513			pane.appendChild(this._container);
2514			this._setAutoZIndex(pane, Math.max);
2515		}
2516
2517		return this;
2518	},
2519
2520	bringToBack: function () {
2521		var pane = this._map._panes.tilePane;
2522
2523		if (this._container) {
2524			pane.insertBefore(this._container, pane.firstChild);
2525			this._setAutoZIndex(pane, Math.min);
2526		}
2527
2528		return this;
2529	},
2530
2531	getAttribution: function () {
2532		return this.options.attribution;
2533	},
2534
2535	getContainer: function () {
2536		return this._container;
2537	},
2538
2539	setOpacity: function (opacity) {
2540		this.options.opacity = opacity;
2541
2542		if (this._map) {
2543			this._updateOpacity();
2544		}
2545
2546		return this;
2547	},
2548
2549	setZIndex: function (zIndex) {
2550		this.options.zIndex = zIndex;
2551		this._updateZIndex();
2552
2553		return this;
2554	},
2555
2556	setUrl: function (url, noRedraw) {
2557		this._url = url;
2558
2559		if (!noRedraw) {
2560			this.redraw();
2561		}
2562
2563		return this;
2564	},
2565
2566	redraw: function () {
2567		if (this._map) {
2568			this._reset({hard: true});
2569			this._update();
2570		}
2571		return this;
2572	},
2573
2574	_updateZIndex: function () {
2575		if (this._container && this.options.zIndex !== undefined) {
2576			this._container.style.zIndex = this.options.zIndex;
2577		}
2578	},
2579
2580	_setAutoZIndex: function (pane, compare) {
2581
2582		var layers = pane.children,
2583		    edgeZIndex = -compare(Infinity, -Infinity), // -Infinity for max, Infinity for min
2584		    zIndex, i, len;
2585
2586		for (i = 0, len = layers.length; i < len; i++) {
2587
2588			if (layers[i] !== this._container) {
2589				zIndex = parseInt(layers[i].style.zIndex, 10);
2590
2591				if (!isNaN(zIndex)) {
2592					edgeZIndex = compare(edgeZIndex, zIndex);
2593				}
2594			}
2595		}
2596
2597		this.options.zIndex = this._container.style.zIndex =
2598		        (isFinite(edgeZIndex) ? edgeZIndex : 0) + compare(1, -1);
2599	},
2600
2601	_updateOpacity: function () {
2602		var i,
2603		    tiles = this._tiles;
2604
2605		if (L.Browser.ielt9) {
2606			for (i in tiles) {
2607				L.DomUtil.setOpacity(tiles[i], this.options.opacity);
2608			}
2609		} else {
2610			L.DomUtil.setOpacity(this._container, this.options.opacity);
2611		}
2612	},
2613
2614	_initContainer: function () {
2615		var tilePane = this._map._panes.tilePane;
2616
2617		if (!this._container) {
2618			this._container = L.DomUtil.create('div', 'leaflet-layer');
2619
2620			this._updateZIndex();
2621
2622			if (this._animated) {
2623				var className = 'leaflet-tile-container';
2624
2625				this._bgBuffer = L.DomUtil.create('div', className, this._container);
2626				this._tileContainer = L.DomUtil.create('div', className, this._container);
2627
2628			} else {
2629				this._tileContainer = this._container;
2630			}
2631
2632			tilePane.appendChild(this._container);
2633
2634			if (this.options.opacity < 1) {
2635				this._updateOpacity();
2636			}
2637		}
2638	},
2639
2640	_reset: function (e) {
2641		for (var key in this._tiles) {
2642			this.fire('tileunload', {tile: this._tiles[key]});
2643		}
2644
2645		this._tiles = {};
2646		this._tilesToLoad = 0;
2647
2648		if (this.options.reuseTiles) {
2649			this._unusedTiles = [];
2650		}
2651
2652		this._tileContainer.innerHTML = '';
2653
2654		if (this._animated && e && e.hard) {
2655			this._clearBgBuffer();
2656		}
2657
2658		this._initContainer();
2659	},
2660
2661	_getTileSize: function () {
2662		var map = this._map,
2663		    zoom = map.getZoom() + this.options.zoomOffset,
2664		    zoomN = this.options.maxNativeZoom,
2665		    tileSize = this.options.tileSize;
2666
2667		if (zoomN && zoom > zoomN) {
2668			tileSize = Math.round(map.getZoomScale(zoom) / map.getZoomScale(zoomN) * tileSize);
2669		}
2670
2671		return tileSize;
2672	},
2673
2674	_update: function () {
2675
2676		if (!this._map) { return; }
2677
2678		var map = this._map,
2679		    bounds = map.getPixelBounds(),
2680		    zoom = map.getZoom(),
2681		    tileSize = this._getTileSize();
2682
2683		if (zoom > this.options.maxZoom || zoom < this.options.minZoom) {
2684			return;
2685		}
2686
2687		var tileBounds = L.bounds(
2688		        bounds.min.divideBy(tileSize)._floor(),
2689		        bounds.max.divideBy(tileSize)._floor());
2690
2691		this._addTilesFromCenterOut(tileBounds);
2692
2693		if (this.options.unloadInvisibleTiles || this.options.reuseTiles) {
2694			this._removeOtherTiles(tileBounds);
2695		}
2696	},
2697
2698	_addTilesFromCenterOut: function (bounds) {
2699		var queue = [],
2700		    center = bounds.getCenter();
2701
2702		var j, i, point;
2703
2704		for (j = bounds.min.y; j <= bounds.max.y; j++) {
2705			for (i = bounds.min.x; i <= bounds.max.x; i++) {
2706				point = new L.Point(i, j);
2707
2708				if (this._tileShouldBeLoaded(point)) {
2709					queue.push(point);
2710				}
2711			}
2712		}
2713
2714		var tilesToLoad = queue.length;
2715
2716		if (tilesToLoad === 0) { return; }
2717
2718		// load tiles in order of their distance to center
2719		queue.sort(function (a, b) {
2720			return a.distanceTo(center) - b.distanceTo(center);
2721		});
2722
2723		var fragment = document.createDocumentFragment();
2724
2725		// if its the first batch of tiles to load
2726		if (!this._tilesToLoad) {
2727			this.fire('loading');
2728		}
2729
2730		this._tilesToLoad += tilesToLoad;
2731
2732		for (i = 0; i < tilesToLoad; i++) {
2733			this._addTile(queue[i], fragment);
2734		}
2735
2736		this._tileContainer.appendChild(fragment);
2737	},
2738
2739	_tileShouldBeLoaded: function (tilePoint) {
2740		if ((tilePoint.x + ':' + tilePoint.y) in this._tiles) {
2741			return false; // already loaded
2742		}
2743
2744		var options = this.options;
2745
2746		if (!options.continuousWorld) {
2747			var limit = this._getWrapTileNum();
2748
2749			// don't load if exceeds world bounds
2750			if ((options.noWrap && (tilePoint.x < 0 || tilePoint.x >= limit.x)) ||
2751				tilePoint.y < 0 || tilePoint.y >= limit.y) { return false; }
2752		}
2753
2754		if (options.bounds) {
2755			var tileSize = this._getTileSize(),
2756			    nwPoint = tilePoint.multiplyBy(tileSize),
2757			    sePoint = nwPoint.add([tileSize, tileSize]),
2758			    nw = this._map.unproject(nwPoint),
2759			    se = this._map.unproject(sePoint);
2760
2761			// TODO temporary hack, will be removed after refactoring projections
2762			// https://github.com/Leaflet/Leaflet/issues/1618
2763			if (!options.continuousWorld && !options.noWrap) {
2764				nw = nw.wrap();
2765				se = se.wrap();
2766			}
2767
2768			if (!options.bounds.intersects([nw, se])) { return false; }
2769		}
2770
2771		return true;
2772	},
2773
2774	_removeOtherTiles: function (bounds) {
2775		var kArr, x, y, key;
2776
2777		for (key in this._tiles) {
2778			kArr = key.split(':');
2779			x = parseInt(kArr[0], 10);
2780			y = parseInt(kArr[1], 10);
2781
2782			// remove tile if it's out of bounds
2783			if (x < bounds.min.x || x > bounds.max.x || y < bounds.min.y || y > bounds.max.y) {
2784				this._removeTile(key);
2785			}
2786		}
2787	},
2788
2789	_removeTile: function (key) {
2790		var tile = this._tiles[key];
2791
2792		this.fire('tileunload', {tile: tile, url: tile.src});
2793
2794		if (this.options.reuseTiles) {
2795			L.DomUtil.removeClass(tile, 'leaflet-tile-loaded');
2796			this._unusedTiles.push(tile);
2797
2798		} else if (tile.parentNode === this._tileContainer) {
2799			this._tileContainer.removeChild(tile);
2800		}
2801
2802		// for https://github.com/CloudMade/Leaflet/issues/137
2803		if (!L.Browser.android) {
2804			tile.onload = null;
2805			tile.src = L.Util.emptyImageUrl;
2806		}
2807
2808		delete this._tiles[key];
2809	},
2810
2811	_addTile: function (tilePoint, container) {
2812		var tilePos = this._getTilePos(tilePoint);
2813
2814		// get unused tile - or create a new tile
2815		var tile = this._getTile();
2816
2817		/*
2818		Chrome 20 layouts much faster with top/left (verify with timeline, frames)
2819		Android 4 browser has display issues with top/left and requires transform instead
2820		(other browsers don't currently care) - see debug/hacks/jitter.html for an example
2821		*/
2822		L.DomUtil.setPosition(tile, tilePos, L.Browser.chrome);
2823
2824		this._tiles[tilePoint.x + ':' + tilePoint.y] = tile;
2825
2826		this._loadTile(tile, tilePoint);
2827
2828		if (tile.parentNode !== this._tileContainer) {
2829			container.appendChild(tile);
2830		}
2831	},
2832
2833	_getZoomForUrl: function () {
2834
2835		var options = this.options,
2836		    zoom = this._map.getZoom();
2837
2838		if (options.zoomReverse) {
2839			zoom = options.maxZoom - zoom;
2840		}
2841
2842		zoom += options.zoomOffset;
2843
2844		return options.maxNativeZoom ? Math.min(zoom, options.maxNativeZoom) : zoom;
2845	},
2846
2847	_getTilePos: function (tilePoint) {
2848		var origin = this._map.getPixelOrigin(),
2849		    tileSize = this._getTileSize();
2850
2851		return tilePoint.multiplyBy(tileSize).subtract(origin);
2852	},
2853
2854	// image-specific code (override to implement e.g. Canvas or SVG tile layer)
2855
2856	getTileUrl: function (tilePoint) {
2857		return L.Util.template(this._url, L.extend({
2858			s: this._getSubdomain(tilePoint),
2859			z: tilePoint.z,
2860			x: tilePoint.x,
2861			y: tilePoint.y
2862		}, this.options));
2863	},
2864
2865	_getWrapTileNum: function () {
2866		var crs = this._map.options.crs,
2867		    size = crs.getSize(this._map.getZoom());
2868		return size.divideBy(this._getTileSize())._floor();
2869	},
2870
2871	_adjustTilePoint: function (tilePoint) {
2872
2873		var limit = this._getWrapTileNum();
2874
2875		// wrap tile coordinates
2876		if (!this.options.continuousWorld && !this.options.noWrap) {
2877			tilePoint.x = ((tilePoint.x % limit.x) + limit.x) % limit.x;
2878		}
2879
2880		if (this.options.tms) {
2881			tilePoint.y = limit.y - tilePoint.y - 1;
2882		}
2883
2884		tilePoint.z = this._getZoomForUrl();
2885	},
2886
2887	_getSubdomain: function (tilePoint) {
2888		var index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length;
2889		return this.options.subdomains[index];
2890	},
2891
2892	_getTile: function () {
2893		if (this.options.reuseTiles && this._unusedTiles.length > 0) {
2894			var tile = this._unusedTiles.pop();
2895			this._resetTile(tile);
2896			return tile;
2897		}
2898		return this._createTile();
2899	},
2900
2901	// Override if data stored on a tile needs to be cleaned up before reuse
2902	_resetTile: function (/*tile*/) {},
2903
2904	_createTile: function () {
2905		var tile = L.DomUtil.create('img', 'leaflet-tile');
2906		tile.style.width = tile.style.height = this._getTileSize() + 'px';
2907		tile.galleryimg = 'no';
2908
2909		tile.onselectstart = tile.onmousemove = L.Util.falseFn;
2910
2911		if (L.Browser.ielt9 && this.options.opacity !== undefined) {
2912			L.DomUtil.setOpacity(tile, this.options.opacity);
2913		}
2914		// without this hack, tiles disappear after zoom on Chrome for Android
2915		// https://github.com/Leaflet/Leaflet/issues/2078
2916		if (L.Browser.mobileWebkit3d) {
2917			tile.style.WebkitBackfaceVisibility = 'hidden';
2918		}
2919		return tile;
2920	},
2921
2922	_loadTile: function (tile, tilePoint) {
2923		tile._layer  = this;
2924		tile.onload  = this._tileOnLoad;
2925		tile.onerror = this._tileOnError;
2926
2927		this._adjustTilePoint(tilePoint);
2928		tile.src     = this.getTileUrl(tilePoint);
2929
2930		this.fire('tileloadstart', {
2931			tile: tile,
2932			url: tile.src
2933		});
2934	},
2935
2936	_tileLoaded: function () {
2937		this._tilesToLoad--;
2938
2939		if (this._animated) {
2940			L.DomUtil.addClass(this._tileContainer, 'leaflet-zoom-animated');
2941		}
2942
2943		if (!this._tilesToLoad) {
2944			this.fire('load');
2945
2946			if (this._animated) {
2947				// clear scaled tiles after all new tiles are loaded (for performance)
2948				clearTimeout(this._clearBgBufferTimer);
2949				this._clearBgBufferTimer = setTimeout(L.bind(this._clearBgBuffer, this), 500);
2950			}
2951		}
2952	},
2953
2954	_tileOnLoad: function () {
2955		var layer = this._layer;
2956
2957		//Only if we are loading an actual image
2958		if (this.src !== L.Util.emptyImageUrl) {
2959			L.DomUtil.addClass(this, 'leaflet-tile-loaded');
2960
2961			layer.fire('tileload', {
2962				tile: this,
2963				url: this.src
2964			});
2965		}
2966
2967		layer._tileLoaded();
2968	},
2969
2970	_tileOnError: function () {
2971		var layer = this._layer;
2972
2973		layer.fire('tileerror', {
2974			tile: this,
2975			url: this.src
2976		});
2977
2978		var newUrl = layer.options.errorTileUrl;
2979		if (newUrl) {
2980			this.src = newUrl;
2981		}
2982
2983		layer._tileLoaded();
2984	}
2985});
2986
2987L.tileLayer = function (url, options) {
2988	return new L.TileLayer(url, options);
2989};
2990
2991
2992/*
2993 * L.TileLayer.WMS is used for putting WMS tile layers on the map.
2994 */
2995
2996L.TileLayer.WMS = L.TileLayer.extend({
2997
2998	defaultWmsParams: {
2999		service: 'WMS',
3000		request: 'GetMap',
3001		version: '1.1.1',
3002		layers: '',
3003		styles: '',
3004		format: 'image/jpeg',
3005		transparent: false
3006	},
3007
3008	initialize: function (url, options) { // (String, Object)
3009
3010		this._url = url;
3011
3012		var wmsParams = L.extend({}, this.defaultWmsParams),
3013		    tileSize = options.tileSize || this.options.tileSize;
3014
3015		if (options.detectRetina && L.Browser.retina) {
3016			wmsParams.width = wmsParams.height = tileSize * 2;
3017		} else {
3018			wmsParams.width = wmsParams.height = tileSize;
3019		}
3020
3021		for (var i in options) {
3022			// all keys that are not TileLayer options go to WMS params
3023			if (!this.options.hasOwnProperty(i) && i !== 'crs') {
3024				wmsParams[i] = options[i];
3025			}
3026		}
3027
3028		this.wmsParams = wmsParams;
3029
3030		L.setOptions(this, options);
3031	},
3032
3033	onAdd: function (map) {
3034
3035		this._crs = this.options.crs || map.options.crs;
3036
3037		this._wmsVersion = parseFloat(this.wmsParams.version);
3038
3039		var projectionKey = this._wmsVersion >= 1.3 ? 'crs' : 'srs';
3040		this.wmsParams[projectionKey] = this._crs.code;
3041
3042		L.TileLayer.prototype.onAdd.call(this, map);
3043	},
3044
3045	getTileUrl: function (tilePoint) { // (Point, Number) -> String
3046
3047		var map = this._map,
3048		    tileSize = this.options.tileSize,
3049
3050		    nwPoint = tilePoint.multiplyBy(tileSize),
3051		    sePoint = nwPoint.add([tileSize, tileSize]),
3052
3053		    nw = this._crs.project(map.unproject(nwPoint, tilePoint.z)),
3054		    se = this._crs.project(map.unproject(sePoint, tilePoint.z)),
3055		    bbox = this._wmsVersion >= 1.3 && this._crs === L.CRS.EPSG4326 ?
3056		        [se.y, nw.x, nw.y, se.x].join(',') :
3057		        [nw.x, se.y, se.x, nw.y].join(','),
3058
3059		    url = L.Util.template(this._url, {s: this._getSubdomain(tilePoint)});
3060
3061		return url + L.Util.getParamString(this.wmsParams, url, true) + '&BBOX=' + bbox;
3062	},
3063
3064	setParams: function (params, noRedraw) {
3065
3066		L.extend(this.wmsParams, params);
3067
3068		if (!noRedraw) {
3069			this.redraw();
3070		}
3071
3072		return this;
3073	}
3074});
3075
3076L.tileLayer.wms = function (url, options) {
3077	return new L.TileLayer.WMS(url, options);
3078};
3079
3080
3081/*
3082 * L.TileLayer.Canvas is a class that you can use as a base for creating
3083 * dynamically drawn Canvas-based tile layers.
3084 */
3085
3086L.TileLayer.Canvas = L.TileLayer.extend({
3087	options: {
3088		async: false
3089	},
3090
3091	initialize: function (options) {
3092		L.setOptions(this, options);
3093	},
3094
3095	redraw: function () {
3096		if (this._map) {
3097			this._reset({hard: true});
3098			this._update();
3099		}
3100
3101		for (var i in this._tiles) {
3102			this._redrawTile(this._tiles[i]);
3103		}
3104		return this;
3105	},
3106
3107	_redrawTile: function (tile) {
3108		this.drawTile(tile, tile._tilePoint, this._map._zoom);
3109	},
3110
3111	_createTile: function () {
3112		var tile = L.DomUtil.create('canvas', 'leaflet-tile');
3113		tile.width = tile.height = this.options.tileSize;
3114		tile.onselectstart = tile.onmousemove = L.Util.falseFn;
3115		return tile;
3116	},
3117
3118	_loadTile: function (tile, tilePoint) {
3119		tile._layer = this;
3120		tile._tilePoint = tilePoint;
3121
3122		this._redrawTile(tile);
3123
3124		if (!this.options.async) {
3125			this.tileDrawn(tile);
3126		}
3127	},
3128
3129	drawTile: function (/*tile, tilePoint*/) {
3130		// override with rendering code
3131	},
3132
3133	tileDrawn: function (tile) {
3134		this._tileOnLoad.call(tile);
3135	}
3136});
3137
3138
3139L.tileLayer.canvas = function (options) {
3140	return new L.TileLayer.Canvas(options);
3141};
3142
3143
3144/*
3145 * L.ImageOverlay is used to overlay images over the map (to specific geographical bounds).
3146 */
3147
3148L.ImageOverlay = L.Class.extend({
3149	includes: L.Mixin.Events,
3150
3151	options: {
3152		opacity: 1
3153	},
3154
3155	initialize: function (url, bounds, options) { // (String, LatLngBounds, Object)
3156		this._url = url;
3157		this._bounds = L.latLngBounds(bounds);
3158
3159		L.setOptions(this, options);
3160	},
3161
3162	onAdd: function (map) {
3163		this._map = map;
3164
3165		if (!this._image) {
3166			this._initImage();
3167		}
3168
3169		map._panes.overlayPane.appendChild(this._image);
3170
3171		map.on('viewreset', this._reset, this);
3172
3173		if (map.options.zoomAnimation && L.Browser.any3d) {
3174			map.on('zoomanim', this._animateZoom, this);
3175		}
3176
3177		this._reset();
3178	},
3179
3180	onRemove: function (map) {
3181		map.getPanes().overlayPane.removeChild(this._image);
3182
3183		map.off('viewreset', this._reset, this);
3184
3185		if (map.options.zoomAnimation) {
3186			map.off('zoomanim', this._animateZoom, this);
3187		}
3188	},
3189
3190	addTo: function (map) {
3191		map.addLayer(this);
3192		return this;
3193	},
3194
3195	setOpacity: function (opacity) {
3196		this.options.opacity = opacity;
3197		this._updateOpacity();
3198		return this;
3199	},
3200
3201	// TODO remove bringToFront/bringToBack duplication from TileLayer/Path
3202	bringToFront: function () {
3203		if (this._image) {
3204			this._map._panes.overlayPane.appendChild(this._image);
3205		}
3206		return this;
3207	},
3208
3209	bringToBack: function () {
3210		var pane = this._map._panes.overlayPane;
3211		if (this._image) {
3212			pane.insertBefore(this._image, pane.firstChild);
3213		}
3214		return this;
3215	},
3216
3217	setUrl: function (url) {
3218		this._url = url;
3219		this._image.src = this._url;
3220	},
3221
3222	getAttribution: function () {
3223		return this.options.attribution;
3224	},
3225
3226	_initImage: function () {
3227		this._image = L.DomUtil.create('img', 'leaflet-image-layer');
3228
3229		if (this._map.options.zoomAnimation && L.Browser.any3d) {
3230			L.DomUtil.addClass(this._image, 'leaflet-zoom-animated');
3231		} else {
3232			L.DomUtil.addClass(this._image, 'leaflet-zoom-hide');
3233		}
3234
3235		this._updateOpacity();
3236
3237		//TODO createImage util method to remove duplication
3238		L.extend(this._image, {
3239			galleryimg: 'no',
3240			onselectstart: L.Util.falseFn,
3241			onmousemove: L.Util.falseFn,
3242			onload: L.bind(this._onImageLoad, this),
3243			src: this._url
3244		});
3245	},
3246
3247	_animateZoom: function (e) {
3248		var map = this._map,
3249		    image = this._image,
3250		    scale = map.getZoomScale(e.zoom),
3251		    nw = this._bounds.getNorthWest(),
3252		    se = this._bounds.getSouthEast(),
3253
3254		    topLeft = map._latLngToNewLayerPoint(nw, e.zoom, e.center),
3255		    size = map._latLngToNewLayerPoint(se, e.zoom, e.center)._subtract(topLeft),
3256		    origin = topLeft._add(size._multiplyBy((1 / 2) * (1 - 1 / scale)));
3257
3258		image.style[L.DomUtil.TRANSFORM] =
3259		        L.DomUtil.getTranslateString(origin) + ' scale(' + scale + ') ';
3260	},
3261
3262	_reset: function () {
3263		var image   = this._image,
3264		    topLeft = this._map.latLngToLayerPoint(this._bounds.getNorthWest()),
3265		    size = this._map.latLngToLayerPoint(this._bounds.getSouthEast())._subtract(topLeft);
3266
3267		L.DomUtil.setPosition(image, topLeft);
3268
3269		image.style.width  = size.x + 'px';
3270		image.style.height = size.y + 'px';
3271	},
3272
3273	_onImageLoad: function () {
3274		this.fire('load');
3275	},
3276
3277	_updateOpacity: function () {
3278		L.DomUtil.setOpacity(this._image, this.options.opacity);
3279	}
3280});
3281
3282L.imageOverlay = function (url, bounds, options) {
3283	return new L.ImageOverlay(url, bounds, options);
3284};
3285
3286
3287/*
3288 * L.Icon is an image-based icon class that you can use with L.Marker for custom markers.
3289 */
3290
3291L.Icon = L.Class.extend({
3292	options: {
3293		/*
3294		iconUrl: (String) (required)
3295		iconRetinaUrl: (String) (optional, used for retina devices if detected)
3296		iconSize: (Point) (can be set through CSS)
3297		iconAnchor: (Point) (centered by default, can be set in CSS with negative margins)
3298		popupAnchor: (Point) (if not specified, popup opens in the anchor point)
3299		shadowUrl: (String) (no shadow by default)
3300		shadowRetinaUrl: (String) (optional, used for retina devices if detected)
3301		shadowSize: (Point)
3302		shadowAnchor: (Point)
3303		*/
3304		className: ''
3305	},
3306
3307	initialize: function (options) {
3308		L.setOptions(this, options);
3309	},
3310
3311	createIcon: function (oldIcon) {
3312		return this._createIcon('icon', oldIcon);
3313	},
3314
3315	createShadow: function (oldIcon) {
3316		return this._createIcon('shadow', oldIcon);
3317	},
3318
3319	_createIcon: function (name, oldIcon) {
3320		var src = this._getIconUrl(name);
3321
3322		if (!src) {
3323			if (name === 'icon') {
3324				throw new Error('iconUrl not set in Icon options (see the docs).');
3325			}
3326			return null;
3327		}
3328
3329		var img;
3330		if (!oldIcon || oldIcon.tagName !== 'IMG') {
3331			img = this._createImg(src);
3332		} else {
3333			img = this._createImg(src, oldIcon);
3334		}
3335		this._setIconStyles(img, name);
3336
3337		return img;
3338	},
3339
3340	_setIconStyles: function (img, name) {
3341		var options = this.options,
3342		    size = L.point(options[name + 'Size']),
3343		    anchor;
3344
3345		if (name === 'shadow') {
3346			anchor = L.point(options.shadowAnchor || options.iconAnchor);
3347		} else {
3348			anchor = L.point(options.iconAnchor);
3349		}
3350
3351		if (!anchor && size) {
3352			anchor = size.divideBy(2, true);
3353		}
3354
3355		img.className = 'leaflet-marker-' + name + ' ' + options.className;
3356
3357		if (anchor) {
3358			img.style.marginLeft = (-anchor.x) + 'px';
3359			img.style.marginTop  = (-anchor.y) + 'px';
3360		}
3361
3362		if (size) {
3363			img.style.width  = size.x + 'px';
3364			img.style.height = size.y + 'px';
3365		}
3366	},
3367
3368	_createImg: function (src, el) {
3369		el = el || document.createElement('img');
3370		el.src = src;
3371		return el;
3372	},
3373
3374	_getIconUrl: function (name) {
3375		if (L.Browser.retina && this.options[name + 'RetinaUrl']) {
3376			return this.options[name + 'RetinaUrl'];
3377		}
3378		return this.options[name + 'Url'];
3379	}
3380});
3381
3382L.icon = function (options) {
3383	return new L.Icon(options);
3384};
3385
3386
3387/*
3388 * L.Icon.Default is the blue marker icon used by default in Leaflet.
3389 */
3390
3391L.Icon.Default = L.Icon.extend({
3392
3393	options: {
3394		iconSize: [25, 41],
3395		iconAnchor: [12, 41],
3396		popupAnchor: [1, -34],
3397
3398		shadowSize: [41, 41]
3399	},
3400
3401	_getIconUrl: function (name) {
3402		var key = name + 'Url';
3403
3404		if (this.options[key]) {
3405			return this.options[key];
3406		}
3407
3408		if (L.Browser.retina && name === 'icon') {
3409			name += '-2x';
3410		}
3411
3412		var path = L.Icon.Default.imagePath;
3413
3414		if (!path) {
3415			throw new Error('Couldn\'t autodetect L.Icon.Default.imagePath, set it manually.');
3416		}
3417
3418		return path + '/marker-' + name + '.png';
3419	}
3420});
3421
3422L.Icon.Default.imagePath = (function () {
3423	var scripts = document.getElementsByTagName('script'),
3424	    leafletRe = /[\/^]leaflet[\-\._]?([\w\-\._]*)\.js\??/;
3425
3426	var i, len, src, matches, path;
3427
3428	for (i = 0, len = scripts.length; i < len; i++) {
3429		src = scripts[i].src;
3430		matches = src.match(leafletRe);
3431
3432		if (matches) {
3433			path = src.split(leafletRe)[0];
3434			return (path ? path + '/' : '') + 'images';
3435		}
3436	}
3437}());
3438
3439
3440/*
3441 * L.Marker is used to display clickable/draggable icons on the map.
3442 */
3443
3444L.Marker = L.Class.extend({
3445
3446	includes: L.Mixin.Events,
3447
3448	options: {
3449		icon: new L.Icon.Default(),
3450		title: '',
3451		alt: '',
3452		clickable: true,
3453		draggable: false,
3454		keyboard: true,
3455		zIndexOffset: 0,
3456		opacity: 1,
3457		riseOnHover: false,
3458		riseOffset: 250
3459	},
3460
3461	initialize: function (latlng, options) {
3462		L.setOptions(this, options);
3463		this._latlng = L.latLng(latlng);
3464	},
3465
3466	onAdd: function (map) {
3467		this._map = map;
3468
3469		map.on('viewreset', this.update, this);
3470
3471		this._initIcon();
3472		this.update();
3473		this.fire('add');
3474
3475		if (map.options.zoomAnimation && map.options.markerZoomAnimation) {
3476			map.on('zoomanim', this._animateZoom, this);
3477		}
3478	},
3479
3480	addTo: function (map) {
3481		map.addLayer(this);
3482		return this;
3483	},
3484
3485	onRemove: function (map) {
3486		if (this.dragging) {
3487			this.dragging.disable();
3488		}
3489
3490		this._removeIcon();
3491		this._removeShadow();
3492
3493		this.fire('remove');
3494
3495		map.off({
3496			'viewreset': this.update,
3497			'zoomanim': this._animateZoom
3498		}, this);
3499
3500		this._map = null;
3501	},
3502
3503	getLatLng: function () {
3504		return this._latlng;
3505	},
3506
3507	setLatLng: function (latlng) {
3508		this._latlng = L.latLng(latlng);
3509
3510		this.update();
3511
3512		return this.fire('move', { latlng: this._latlng });
3513	},
3514
3515	setZIndexOffset: function (offset) {
3516		this.options.zIndexOffset = offset;
3517		this.update();
3518
3519		return this;
3520	},
3521
3522	setIcon: function (icon) {
3523
3524		this.options.icon = icon;
3525
3526		if (this._map) {
3527			this._initIcon();
3528			this.update();
3529		}
3530
3531		if (this._popup) {
3532			this.bindPopup(this._popup);
3533		}
3534
3535		return this;
3536	},
3537
3538	update: function () {
3539		if (this._icon) {
3540			this._setPos(this._map.latLngToLayerPoint(this._latlng).round());
3541		}
3542		return this;
3543	},
3544
3545	_initIcon: function () {
3546		var options = this.options,
3547		    map = this._map,
3548		    animation = (map.options.zoomAnimation && map.options.markerZoomAnimation),
3549		    classToAdd = animation ? 'leaflet-zoom-animated' : 'leaflet-zoom-hide';
3550
3551		var icon = options.icon.createIcon(this._icon),
3552			addIcon = false;
3553
3554		// if we're not reusing the icon, remove the old one and init new one
3555		if (icon !== this._icon) {
3556			if (this._icon) {
3557				this._removeIcon();
3558			}
3559			addIcon = true;
3560
3561			if (options.title) {
3562				icon.title = options.title;
3563			}
3564
3565			if (options.alt) {
3566				icon.alt = options.alt;
3567			}
3568		}
3569
3570		L.DomUtil.addClass(icon, classToAdd);
3571
3572		if (options.keyboard) {
3573			icon.tabIndex = '0';
3574		}
3575
3576		this._icon = icon;
3577
3578		this._initInteraction();
3579
3580		if (options.riseOnHover) {
3581			L.DomEvent
3582				.on(icon, 'mouseover', this._bringToFront, this)
3583				.on(icon, 'mouseout', this._resetZIndex, this);
3584		}
3585
3586		var newShadow = options.icon.createShadow(this._shadow),
3587			addShadow = false;
3588
3589		if (newShadow !== this._shadow) {
3590			this._removeShadow();
3591			addShadow = true;
3592		}
3593
3594		if (newShadow) {
3595			L.DomUtil.addClass(newShadow, classToAdd);
3596		}
3597		this._shadow = newShadow;
3598
3599
3600		if (options.opacity < 1) {
3601			this._updateOpacity();
3602		}
3603
3604
3605		var panes = this._map._panes;
3606
3607		if (addIcon) {
3608			panes.markerPane.appendChild(this._icon);
3609		}
3610
3611		if (newShadow && addShadow) {
3612			panes.shadowPane.appendChild(this._shadow);
3613		}
3614	},
3615
3616	_removeIcon: function () {
3617		if (this.options.riseOnHover) {
3618			L.DomEvent
3619			    .off(this._icon, 'mouseover', this._bringToFront)
3620			    .off(this._icon, 'mouseout', this._resetZIndex);
3621		}
3622
3623		this._map._panes.markerPane.removeChild(this._icon);
3624
3625		this._icon = null;
3626	},
3627
3628	_removeShadow: function () {
3629		if (this._shadow) {
3630			this._map._panes.shadowPane.removeChild(this._shadow);
3631		}
3632		this._shadow = null;
3633	},
3634
3635	_setPos: function (pos) {
3636		L.DomUtil.setPosition(this._icon, pos);
3637
3638		if (this._shadow) {
3639			L.DomUtil.setPosition(this._shadow, pos);
3640		}
3641
3642		this._zIndex = pos.y + this.options.zIndexOffset;
3643
3644		this._resetZIndex();
3645	},
3646
3647	_updateZIndex: function (offset) {
3648		this._icon.style.zIndex = this._zIndex + offset;
3649	},
3650
3651	_animateZoom: function (opt) {
3652		var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round();
3653
3654		this._setPos(pos);
3655	},
3656
3657	_initInteraction: function () {
3658
3659		if (!this.options.clickable) { return; }
3660
3661		// TODO refactor into something shared with Map/Path/etc. to DRY it up
3662
3663		var icon = this._icon,
3664		    events = ['dblclick', 'mousedown', 'mouseover', 'mouseout', 'contextmenu'];
3665
3666		L.DomUtil.addClass(icon, 'leaflet-clickable');
3667		L.DomEvent.on(icon, 'click', this._onMouseClick, this);
3668		L.DomEvent.on(icon, 'keypress', this._onKeyPress, this);
3669
3670		for (var i = 0; i < events.length; i++) {
3671			L.DomEvent.on(icon, events[i], this._fireMouseEvent, this);
3672		}
3673
3674		if (L.Handler.MarkerDrag) {
3675			this.dragging = new L.Handler.MarkerDrag(this);
3676
3677			if (this.options.draggable) {
3678				this.dragging.enable();
3679			}
3680		}
3681	},
3682
3683	_onMouseClick: function (e) {
3684		var wasDragged = this.dragging && this.dragging.moved();
3685
3686		if (this.hasEventListeners(e.type) || wasDragged) {
3687			L.DomEvent.stopPropagation(e);
3688		}
3689
3690		if (wasDragged) { return; }
3691
3692		if ((!this.dragging || !this.dragging._enabled) && this._map.dragging && this._map.dragging.moved()) { return; }
3693
3694		this.fire(e.type, {
3695			originalEvent: e,
3696			latlng: this._latlng
3697		});
3698	},
3699
3700	_onKeyPress: function (e) {
3701		if (e.keyCode === 13) {
3702			this.fire('click', {
3703				originalEvent: e,
3704				latlng: this._latlng
3705			});
3706		}
3707	},
3708
3709	_fireMouseEvent: function (e) {
3710
3711		this.fire(e.type, {
3712			originalEvent: e,
3713			latlng: this._latlng
3714		});
3715
3716		// TODO proper custom event propagation
3717		// this line will always be called if marker is in a FeatureGroup
3718		if (e.type === 'contextmenu' && this.hasEventListeners(e.type)) {
3719			L.DomEvent.preventDefault(e);
3720		}
3721		if (e.type !== 'mousedown') {
3722			L.DomEvent.stopPropagation(e);
3723		} else {
3724			L.DomEvent.preventDefault(e);
3725		}
3726	},
3727
3728	setOpacity: function (opacity) {
3729		this.options.opacity = opacity;
3730		if (this._map) {
3731			this._updateOpacity();
3732		}
3733
3734		return this;
3735	},
3736
3737	_updateOpacity: function () {
3738		L.DomUtil.setOpacity(this._icon, this.options.opacity);
3739		if (this._shadow) {
3740			L.DomUtil.setOpacity(this._shadow, this.options.opacity);
3741		}
3742	},
3743
3744	_bringToFront: function () {
3745		this._updateZIndex(this.options.riseOffset);
3746	},
3747
3748	_resetZIndex: function () {
3749		this._updateZIndex(0);
3750	}
3751});
3752
3753L.marker = function (latlng, options) {
3754	return new L.Marker(latlng, options);
3755};
3756
3757
3758/*
3759 * L.DivIcon is a lightweight HTML-based icon class (as opposed to the image-based L.Icon)
3760 * to use with L.Marker.
3761 */
3762
3763L.DivIcon = L.Icon.extend({
3764	options: {
3765		iconSize: [12, 12], // also can be set through CSS
3766		/*
3767		iconAnchor: (Point)
3768		popupAnchor: (Point)
3769		html: (String)
3770		bgPos: (Point)
3771		*/
3772		className: 'leaflet-div-icon',
3773		html: false
3774	},
3775
3776	createIcon: function (oldIcon) {
3777		var div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'),
3778		    options = this.options;
3779
3780		if (options.html !== false) {
3781			div.innerHTML = options.html;
3782		} else {
3783			div.innerHTML = '';
3784		}
3785
3786		if (options.bgPos) {
3787			div.style.backgroundPosition =
3788			        (-options.bgPos.x) + 'px ' + (-options.bgPos.y) + 'px';
3789		}
3790
3791		this._setIconStyles(div, 'icon');
3792		return div;
3793	},
3794
3795	createShadow: function () {
3796		return null;
3797	}
3798});
3799
3800L.divIcon = function (options) {
3801	return new L.DivIcon(options);
3802};
3803
3804
3805/*
3806 * L.Popup is used for displaying popups on the map.
3807 */
3808
3809L.Map.mergeOptions({
3810	closePopupOnClick: true
3811});
3812
3813L.Popup = L.Class.extend({
3814	includes: L.Mixin.Events,
3815
3816	options: {
3817		minWidth: 50,
3818		maxWidth: 300,
3819		// maxHeight: null,
3820		autoPan: true,
3821		closeButton: true,
3822		offset: [0, 7],
3823		autoPanPadding: [5, 5],
3824		// autoPanPaddingTopLeft: null,
3825		// autoPanPaddingBottomRight: null,
3826		keepInView: false,
3827		className: '',
3828		zoomAnimation: true
3829	},
3830
3831	initialize: function (options, source) {
3832		L.setOptions(this, options);
3833
3834		this._source = source;
3835		this._animated = L.Browser.any3d && this.options.zoomAnimation;
3836		this._isOpen = false;
3837	},
3838
3839	onAdd: function (map) {
3840		this._map = map;
3841
3842		if (!this._container) {
3843			this._initLayout();
3844		}
3845
3846		var animFade = map.options.fadeAnimation;
3847
3848		if (animFade) {
3849			L.DomUtil.setOpacity(this._container, 0);
3850		}
3851		map._panes.popupPane.appendChild(this._container);
3852
3853		map.on(this._getEvents(), this);
3854
3855		this.update();
3856
3857		if (animFade) {
3858			L.DomUtil.setOpacity(this._container, 1);
3859		}
3860
3861		this.fire('open');
3862
3863		map.fire('popupopen', {popup: this});
3864
3865		if (this._source) {
3866			this._source.fire('popupopen', {popup: this});
3867		}
3868	},
3869
3870	addTo: function (map) {
3871		map.addLayer(this);
3872		return this;
3873	},
3874
3875	openOn: function (map) {
3876		map.openPopup(this);
3877		return this;
3878	},
3879
3880	onRemove: function (map) {
3881		map._panes.popupPane.removeChild(this._container);
3882
3883		L.Util.falseFn(this._container.offsetWidth); // force reflow
3884
3885		map.off(this._getEvents(), this);
3886
3887		if (map.options.fadeAnimation) {
3888			L.DomUtil.setOpacity(this._container, 0);
3889		}
3890
3891		this._map = null;
3892
3893		this.fire('close');
3894
3895		map.fire('popupclose', {popup: this});
3896
3897		if (this._source) {
3898			this._source.fire('popupclose', {popup: this});
3899		}
3900	},
3901
3902	getLatLng: function () {
3903		return this._latlng;
3904	},
3905
3906	setLatLng: function (latlng) {
3907		this._latlng = L.latLng(latlng);
3908		if (this._map) {
3909			this._updatePosition();
3910			this._adjustPan();
3911		}
3912		return this;
3913	},
3914
3915	getContent: function () {
3916		return this._content;
3917	},
3918
3919	setContent: function (content) {
3920		this._content = content;
3921		this.update();
3922		return this;
3923	},
3924
3925	update: function () {
3926		if (!this._map) { return; }
3927
3928		this._container.style.visibility = 'hidden';
3929
3930		this._updateContent();
3931		this._updateLayout();
3932		this._updatePosition();
3933
3934		this._container.style.visibility = '';
3935
3936		this._adjustPan();
3937	},
3938
3939	_getEvents: function () {
3940		var events = {
3941			viewreset: this._updatePosition
3942		};
3943
3944		if (this._animated) {
3945			events.zoomanim = this._zoomAnimation;
3946		}
3947		if ('closeOnClick' in this.options ? this.options.closeOnClick : this._map.options.closePopupOnClick) {
3948			events.preclick = this._close;
3949		}
3950		if (this.options.keepInView) {
3951			events.moveend = this._adjustPan;
3952		}
3953
3954		return events;
3955	},
3956
3957	_close: function () {
3958		if (this._map) {
3959			this._map.closePopup(this);
3960		}
3961	},
3962
3963	_initLayout: function () {
3964		var prefix = 'leaflet-popup',
3965			containerClass = prefix + ' ' + this.options.className + ' leaflet-zoom-' +
3966			        (this._animated ? 'animated' : 'hide'),
3967			container = this._container = L.DomUtil.create('div', containerClass),
3968			closeButton;
3969
3970		if (this.options.closeButton) {
3971			closeButton = this._closeButton =
3972			        L.DomUtil.create('a', prefix + '-close-button', container);
3973			closeButton.href = '#close';
3974			closeButton.innerHTML = '&#215;';
3975			L.DomEvent.disableClickPropagation(closeButton);
3976
3977			L.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this);
3978		}
3979
3980		var wrapper = this._wrapper =
3981		        L.DomUtil.create('div', prefix + '-content-wrapper', container);
3982		L.DomEvent.disableClickPropagation(wrapper);
3983
3984		this._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper);
3985
3986		L.DomEvent.disableScrollPropagation(this._contentNode);
3987		L.DomEvent.on(wrapper, 'contextmenu', L.DomEvent.stopPropagation);
3988
3989		this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container);
3990		this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer);
3991	},
3992
3993	_updateContent: function () {
3994		if (!this._content) { return; }
3995
3996		if (typeof this._content === 'string') {
3997			this._contentNode.innerHTML = this._content;
3998		} else {
3999			while (this._contentNode.hasChildNodes()) {
4000				this._contentNode.removeChild(this._contentNode.firstChild);
4001			}
4002			this._contentNode.appendChild(this._content);
4003		}
4004		this.fire('contentupdate');
4005	},
4006
4007	_updateLayout: function () {
4008		var container = this._contentNode,
4009		    style = container.style;
4010
4011		style.width = '';
4012		style.whiteSpace = 'nowrap';
4013
4014		var width = container.offsetWidth;
4015		width = Math.min(width, this.options.maxWidth);
4016		width = Math.max(width, this.options.minWidth);
4017
4018		style.width = (width + 1) + 'px';
4019		style.whiteSpace = '';
4020
4021		style.height = '';
4022
4023		var height = container.offsetHeight,
4024		    maxHeight = this.options.maxHeight,
4025		    scrolledClass = 'leaflet-popup-scrolled';
4026
4027		if (maxHeight && height > maxHeight) {
4028			style.height = maxHeight + 'px';
4029			L.DomUtil.addClass(container, scrolledClass);
4030		} else {
4031			L.DomUtil.removeClass(container, scrolledClass);
4032		}
4033
4034		this._containerWidth = this._container.offsetWidth;
4035	},
4036
4037	_updatePosition: function () {
4038		if (!this._map) { return; }
4039
4040		var pos = this._map.latLngToLayerPoint(this._latlng),
4041		    animated = this._animated,
4042		    offset = L.point(this.options.offset);
4043
4044		if (animated) {
4045			L.DomUtil.setPosition(this._container, pos);
4046		}
4047
4048		this._containerBottom = -offset.y - (animated ? 0 : pos.y);
4049		this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x + (animated ? 0 : pos.x);
4050
4051		// bottom position the popup in case the height of the popup changes (images loading etc)
4052		this._container.style.bottom = this._containerBottom + 'px';
4053		this._container.style.left = this._containerLeft + 'px';
4054	},
4055
4056	_zoomAnimation: function (opt) {
4057		var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center);
4058
4059		L.DomUtil.setPosition(this._container, pos);
4060	},
4061
4062	_adjustPan: function () {
4063		if (!this.options.autoPan) { return; }
4064
4065		var map = this._map,
4066		    containerHeight = this._container.offsetHeight,
4067		    containerWidth = this._containerWidth,
4068
4069		    layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom);
4070
4071		if (this._animated) {
4072			layerPos._add(L.DomUtil.getPosition(this._container));
4073		}
4074
4075		var containerPos = map.layerPointToContainerPoint(layerPos),
4076		    padding = L.point(this.options.autoPanPadding),
4077		    paddingTL = L.point(this.options.autoPanPaddingTopLeft || padding),
4078		    paddingBR = L.point(this.options.autoPanPaddingBottomRight || padding),
4079		    size = map.getSize(),
4080		    dx = 0,
4081		    dy = 0;
4082
4083		if (containerPos.x + containerWidth + paddingBR.x > size.x) { // right
4084			dx = containerPos.x + containerWidth - size.x + paddingBR.x;
4085		}
4086		if (containerPos.x - dx - paddingTL.x < 0) { // left
4087			dx = containerPos.x - paddingTL.x;
4088		}
4089		if (containerPos.y + containerHeight + paddingBR.y > size.y) { // bottom
4090			dy = containerPos.y + containerHeight - size.y + paddingBR.y;
4091		}
4092		if (containerPos.y - dy - paddingTL.y < 0) { // top
4093			dy = containerPos.y - paddingTL.y;
4094		}
4095
4096		if (dx || dy) {
4097			map
4098			    .fire('autopanstart')
4099			    .panBy([dx, dy]);
4100		}
4101	},
4102
4103	_onCloseButtonClick: function (e) {
4104		this._close();
4105		L.DomEvent.stop(e);
4106	}
4107});
4108
4109L.popup = function (options, source) {
4110	return new L.Popup(options, source);
4111};
4112
4113
4114L.Map.include({
4115	openPopup: function (popup, latlng, options) { // (Popup) or (String || HTMLElement, LatLng[, Object])
4116		this.closePopup();
4117
4118		if (!(popup instanceof L.Popup)) {
4119			var content = popup;
4120
4121			popup = new L.Popup(options)
4122			    .setLatLng(latlng)
4123			    .setContent(content);
4124		}
4125		popup._isOpen = true;
4126
4127		this._popup = popup;
4128		return this.addLayer(popup);
4129	},
4130
4131	closePopup: function (popup) {
4132		if (!popup || popup === this._popup) {
4133			popup = this._popup;
4134			this._popup = null;
4135		}
4136		if (popup) {
4137			this.removeLayer(popup);
4138			popup._isOpen = false;
4139		}
4140		return this;
4141	}
4142});
4143
4144
4145/*
4146 * Popup extension to L.Marker, adding popup-related methods.
4147 */
4148
4149L.Marker.include({
4150	openPopup: function () {
4151		if (this._popup && this._map && !this._map.hasLayer(this._popup)) {
4152			this._popup.setLatLng(this._latlng);
4153			this._map.openPopup(this._popup);
4154		}
4155
4156		return this;
4157	},
4158
4159	closePopup: function () {
4160		if (this._popup) {
4161			this._popup._close();
4162		}
4163		return this;
4164	},
4165
4166	togglePopup: function () {
4167		if (this._popup) {
4168			if (this._popup._isOpen) {
4169				this.closePopup();
4170			} else {
4171				this.openPopup();
4172			}
4173		}
4174		return this;
4175	},
4176
4177	bindPopup: function (content, options) {
4178		var anchor = L.point(this.options.icon.options.popupAnchor || [0, 0]);
4179
4180		anchor = anchor.add(L.Popup.prototype.options.offset);
4181
4182		if (options && options.offset) {
4183			anchor = anchor.add(options.offset);
4184		}
4185
4186		options = L.extend({offset: anchor}, options);
4187
4188		if (!this._popupHandlersAdded) {
4189			this
4190			    .on('click', this.togglePopup, this)
4191			    .on('remove', this.closePopup, this)
4192			    .on('move', this._movePopup, this);
4193			this._popupHandlersAdded = true;
4194		}
4195
4196		if (content instanceof L.Popup) {
4197			L.setOptions(content, options);
4198			this._popup = content;
4199			content._source = this;
4200		} else {
4201			this._popup = new L.Popup(options, this)
4202				.setContent(content);
4203		}
4204
4205		return this;
4206	},
4207
4208	setPopupContent: function (content) {
4209		if (this._popup) {
4210			this._popup.setContent(content);
4211		}
4212		return this;
4213	},
4214
4215	unbindPopup: function () {
4216		if (this._popup) {
4217			this._popup = null;
4218			this
4219			    .off('click', this.togglePopup, this)
4220			    .off('remove', this.closePopup, this)
4221			    .off('move', this._movePopup, this);
4222			this._popupHandlersAdded = false;
4223		}
4224		return this;
4225	},
4226
4227	getPopup: function () {
4228		return this._popup;
4229	},
4230
4231	_movePopup: function (e) {
4232		this._popup.setLatLng(e.latlng);
4233	}
4234});
4235
4236
4237/*
4238 * L.LayerGroup is a class to combine several layers into one so that
4239 * you can manipulate the group (e.g. add/remove it) as one layer.
4240 */
4241
4242L.LayerGroup = L.Class.extend({
4243	initialize: function (layers) {
4244		this._layers = {};
4245
4246		var i, len;
4247
4248		if (layers) {
4249			for (i = 0, len = layers.length; i < len; i++) {
4250				this.addLayer(layers[i]);
4251			}
4252		}
4253	},
4254
4255	addLayer: function (layer) {
4256		var id = this.getLayerId(layer);
4257
4258		this._layers[id] = layer;
4259
4260		if (this._map) {
4261			this._map.addLayer(layer);
4262		}
4263
4264		return this;
4265	},
4266
4267	removeLayer: function (layer) {
4268		var id = layer in this._layers ? layer : this.getLayerId(layer);
4269
4270		if (this._map && this._layers[id]) {
4271			this._map.removeLayer(this._layers[id]);
4272		}
4273
4274		delete this._layers[id];
4275
4276		return this;
4277	},
4278
4279	hasLayer: function (layer) {
4280		if (!layer) { return false; }
4281
4282		return (layer in this._layers || this.getLayerId(layer) in this._layers);
4283	},
4284
4285	clearLayers: function () {
4286		this.eachLayer(this.removeLayer, this);
4287		return this;
4288	},
4289
4290	invoke: function (methodName) {
4291		var args = Array.prototype.slice.call(arguments, 1),
4292		    i, layer;
4293
4294		for (i in this._layers) {
4295			layer = this._layers[i];
4296
4297			if (layer[methodName]) {
4298				layer[methodName].apply(layer, args);
4299			}
4300		}
4301
4302		return this;
4303	},
4304
4305	onAdd: function (map) {
4306		this._map = map;
4307		this.eachLayer(map.addLayer, map);
4308	},
4309
4310	onRemove: function (map) {
4311		this.eachLayer(map.removeLayer, map);
4312		this._map = null;
4313	},
4314
4315	addTo: function (map) {
4316		map.addLayer(this);
4317		return this;
4318	},
4319
4320	eachLayer: function (method, context) {
4321		for (var i in this._layers) {
4322			method.call(context, this._layers[i]);
4323		}
4324		return this;
4325	},
4326
4327	getLayer: function (id) {
4328		return this._layers[id];
4329	},
4330
4331	getLayers: function () {
4332		var layers = [];
4333
4334		for (var i in this._layers) {
4335			layers.push(this._layers[i]);
4336		}
4337		return layers;
4338	},
4339
4340	setZIndex: function (zIndex) {
4341		return this.invoke('setZIndex', zIndex);
4342	},
4343
4344	getLayerId: function (layer) {
4345		return L.stamp(layer);
4346	}
4347});
4348
4349L.layerGroup = function (layers) {
4350	return new L.LayerGroup(layers);
4351};
4352
4353
4354/*
4355 * L.FeatureGroup extends L.LayerGroup by introducing mouse events and additional methods
4356 * shared between a group of interactive layers (like vectors or markers).
4357 */
4358
4359L.FeatureGroup = L.LayerGroup.extend({
4360	includes: L.Mixin.Events,
4361
4362	statics: {
4363		EVENTS: 'click dblclick mouseover mouseout mousemove contextmenu popupopen popupclose'
4364	},
4365
4366	addLayer: function (layer) {
4367		if (this.hasLayer(layer)) {
4368			return this;
4369		}
4370
4371		if ('on' in layer) {
4372			layer.on(L.FeatureGroup.EVENTS, this._propagateEvent, this);
4373		}
4374
4375		L.LayerGroup.prototype.addLayer.call(this, layer);
4376
4377		if (this._popupContent && layer.bindPopup) {
4378			layer.bindPopup(this._popupContent, this._popupOptions);
4379		}
4380
4381		return this.fire('layeradd', {layer: layer});
4382	},
4383
4384	removeLayer: function (layer) {
4385		if (!this.hasLayer(layer)) {
4386			return this;
4387		}
4388		if (layer in this._layers) {
4389			layer = this._layers[layer];
4390		}
4391
4392		if ('off' in layer) {
4393			layer.off(L.FeatureGroup.EVENTS, this._propagateEvent, this);
4394		}
4395
4396		L.LayerGroup.prototype.removeLayer.call(this, layer);
4397
4398		if (this._popupContent) {
4399			this.invoke('unbindPopup');
4400		}
4401
4402		return this.fire('layerremove', {layer: layer});
4403	},
4404
4405	bindPopup: function (content, options) {
4406		this._popupContent = content;
4407		this._popupOptions = options;
4408		return this.invoke('bindPopup', content, options);
4409	},
4410
4411	openPopup: function (latlng) {
4412		// open popup on the first layer
4413		for (var id in this._layers) {
4414			this._layers[id].openPopup(latlng);
4415			break;
4416		}
4417		return this;
4418	},
4419
4420	setStyle: function (style) {
4421		return this.invoke('setStyle', style);
4422	},
4423
4424	bringToFront: function () {
4425		return this.invoke('bringToFront');
4426	},
4427
4428	bringToBack: function () {
4429		return this.invoke('bringToBack');
4430	},
4431
4432	getBounds: function () {
4433		var bounds = new L.LatLngBounds();
4434
4435		this.eachLayer(function (layer) {
4436			bounds.extend(layer instanceof L.Marker ? layer.getLatLng() : layer.getBounds());
4437		});
4438
4439		return bounds;
4440	},
4441
4442	_propagateEvent: function (e) {
4443		e = L.extend({
4444			layer: e.target,
4445			target: this
4446		}, e);
4447		this.fire(e.type, e);
4448	}
4449});
4450
4451L.featureGroup = function (layers) {
4452	return new L.FeatureGroup(layers);
4453};
4454
4455
4456/*
4457 * L.Path is a base class for rendering vector paths on a map. Inherited by Polyline, Circle, etc.
4458 */
4459
4460L.Path = L.Class.extend({
4461	includes: [L.Mixin.Events],
4462
4463	statics: {
4464		// how much to extend the clip area around the map view
4465		// (relative to its size, e.g. 0.5 is half the screen in each direction)
4466		// set it so that SVG element doesn't exceed 1280px (vectors flicker on dragend if it is)
4467		CLIP_PADDING: (function () {
4468			var max = L.Browser.mobile ? 1280 : 2000,
4469			    target = (max / Math.max(window.outerWidth, window.outerHeight) - 1) / 2;
4470			return Math.max(0, Math.min(0.5, target));
4471		})()
4472	},
4473
4474	options: {
4475		stroke: true,
4476		color: '#0033ff',
4477		dashArray: null,
4478		lineCap: null,
4479		lineJoin: null,
4480		weight: 5,
4481		opacity: 0.5,
4482
4483		fill: false,
4484		fillColor: null, //same as color by default
4485		fillOpacity: 0.2,
4486
4487		clickable: true
4488	},
4489
4490	initialize: function (options) {
4491		L.setOptions(this, options);
4492	},
4493
4494	onAdd: function (map) {
4495		this._map = map;
4496
4497		if (!this._container) {
4498			this._initElements();
4499			this._initEvents();
4500		}
4501
4502		this.projectLatlngs();
4503		this._updatePath();
4504
4505		if (this._container) {
4506			this._map._pathRoot.appendChild(this._container);
4507		}
4508
4509		this.fire('add');
4510
4511		map.on({
4512			'viewreset': this.projectLatlngs,
4513			'moveend': this._updatePath
4514		}, this);
4515	},
4516
4517	addTo: function (map) {
4518		map.addLayer(this);
4519		return this;
4520	},
4521
4522	onRemove: function (map) {
4523		map._pathRoot.removeChild(this._container);
4524
4525		// Need to fire remove event before we set _map to null as the event hooks might need the object
4526		this.fire('remove');
4527		this._map = null;
4528
4529		if (L.Browser.vml) {
4530			this._container = null;
4531			this._stroke = null;
4532			this._fill = null;
4533		}
4534
4535		map.off({
4536			'viewreset': this.projectLatlngs,
4537			'moveend': this._updatePath
4538		}, this);
4539	},
4540
4541	projectLatlngs: function () {
4542		// do all projection stuff here
4543	},
4544
4545	setStyle: function (style) {
4546		L.setOptions(this, style);
4547
4548		if (this._container) {
4549			this._updateStyle();
4550		}
4551
4552		return this;
4553	},
4554
4555	redraw: function () {
4556		if (this._map) {
4557			this.projectLatlngs();
4558			this._updatePath();
4559		}
4560		return this;
4561	}
4562});
4563
4564L.Map.include({
4565	_updatePathViewport: function () {
4566		var p = L.Path.CLIP_PADDING,
4567		    size = this.getSize(),
4568		    panePos = L.DomUtil.getPosition(this._mapPane),
4569		    min = panePos.multiplyBy(-1)._subtract(size.multiplyBy(p)._round()),
4570		    max = min.add(size.multiplyBy(1 + p * 2)._round());
4571
4572		this._pathViewport = new L.Bounds(min, max);
4573	}
4574});
4575
4576
4577/*
4578 * Extends L.Path with SVG-specific rendering code.
4579 */
4580
4581L.Path.SVG_NS = 'http://www.w3.org/2000/svg';
4582
4583L.Browser.svg = !!(document.createElementNS && document.createElementNS(L.Path.SVG_NS, 'svg').createSVGRect);
4584
4585L.Path = L.Path.extend({
4586	statics: {
4587		SVG: L.Browser.svg
4588	},
4589
4590	bringToFront: function () {
4591		var root = this._map._pathRoot,
4592		    path = this._container;
4593
4594		if (path && root.lastChild !== path) {
4595			root.appendChild(path);
4596		}
4597		return this;
4598	},
4599
4600	bringToBack: function () {
4601		var root = this._map._pathRoot,
4602		    path = this._container,
4603		    first = root.firstChild;
4604
4605		if (path && first !== path) {
4606			root.insertBefore(path, first);
4607		}
4608		return this;
4609	},
4610
4611	getPathString: function () {
4612		// form path string here
4613	},
4614
4615	_createElement: function (name) {
4616		return document.createElementNS(L.Path.SVG_NS, name);
4617	},
4618
4619	_initElements: function () {
4620		this._map._initPathRoot();
4621		this._initPath();
4622		this._initStyle();
4623	},
4624
4625	_initPath: function () {
4626		this._container = this._createElement('g');
4627
4628		this._path = this._createElement('path');
4629
4630		if (this.options.className) {
4631			L.DomUtil.addClass(this._path, this.options.className);
4632		}
4633
4634		this._container.appendChild(this._path);
4635	},
4636
4637	_initStyle: function () {
4638		if (this.options.stroke) {
4639			this._path.setAttribute('stroke-linejoin', 'round');
4640			this._path.setAttribute('stroke-linecap', 'round');
4641		}
4642		if (this.options.fill) {
4643			this._path.setAttribute('fill-rule', 'evenodd');
4644		}
4645		if (this.options.pointerEvents) {
4646			this._path.setAttribute('pointer-events', this.options.pointerEvents);
4647		}
4648		if (!this.options.clickable && !this.options.pointerEvents) {
4649			this._path.setAttribute('pointer-events', 'none');
4650		}
4651		this._updateStyle();
4652	},
4653
4654	_updateStyle: function () {
4655		if (this.options.stroke) {
4656			this._path.setAttribute('stroke', this.options.color);
4657			this._path.setAttribute('stroke-opacity', this.options.opacity);
4658			this._path.setAttribute('stroke-width', this.options.weight);
4659			if (this.options.dashArray) {
4660				this._path.setAttribute('stroke-dasharray', this.options.dashArray);
4661			} else {
4662				this._path.removeAttribute('stroke-dasharray');
4663			}
4664			if (this.options.lineCap) {
4665				this._path.setAttribute('stroke-linecap', this.options.lineCap);
4666			}
4667			if (this.options.lineJoin) {
4668				this._path.setAttribute('stroke-linejoin', this.options.lineJoin);
4669			}
4670		} else {
4671			this._path.setAttribute('stroke', 'none');
4672		}
4673		if (this.options.fill) {
4674			this._path.setAttribute('fill', this.options.fillColor || this.options.color);
4675			this._path.setAttribute('fill-opacity', this.options.fillOpacity);
4676		} else {
4677			this._path.setAttribute('fill', 'none');
4678		}
4679	},
4680
4681	_updatePath: function () {
4682		var str = this.getPathString();
4683		if (!str) {
4684			// fix webkit empty string parsing bug
4685			str = 'M0 0';
4686		}
4687		this._path.setAttribute('d', str);
4688	},
4689
4690	// TODO remove duplication with L.Map
4691	_initEvents: function () {
4692		if (this.options.clickable) {
4693			if (L.Browser.svg || !L.Browser.vml) {
4694				L.DomUtil.addClass(this._path, 'leaflet-clickable');
4695			}
4696
4697			L.DomEvent.on(this._container, 'click', this._onMouseClick, this);
4698
4699			var events = ['dblclick', 'mousedown', 'mouseover',
4700			              'mouseout', 'mousemove', 'contextmenu'];
4701			for (var i = 0; i < events.length; i++) {
4702				L.DomEvent.on(this._container, events[i], this._fireMouseEvent, this);
4703			}
4704		}
4705	},
4706
4707	_onMouseClick: function (e) {
4708		if (this._map.dragging && this._map.dragging.moved()) { return; }
4709
4710		this._fireMouseEvent(e);
4711	},
4712
4713	_fireMouseEvent: function (e) {
4714		if (!this._map || !this.hasEventListeners(e.type)) { return; }
4715
4716		var map = this._map,
4717		    containerPoint = map.mouseEventToContainerPoint(e),
4718		    layerPoint = map.containerPointToLayerPoint(containerPoint),
4719		    latlng = map.layerPointToLatLng(layerPoint);
4720
4721		this.fire(e.type, {
4722			latlng: latlng,
4723			layerPoint: layerPoint,
4724			containerPoint: containerPoint,
4725			originalEvent: e
4726		});
4727
4728		if (e.type === 'contextmenu') {
4729			L.DomEvent.preventDefault(e);
4730		}
4731		if (e.type !== 'mousemove') {
4732			L.DomEvent.stopPropagation(e);
4733		}
4734	}
4735});
4736
4737L.Map.include({
4738	_initPathRoot: function () {
4739		if (!this._pathRoot) {
4740			this._pathRoot = L.Path.prototype._createElement('svg');
4741			this._panes.overlayPane.appendChild(this._pathRoot);
4742
4743			if (this.options.zoomAnimation && L.Browser.any3d) {
4744				L.DomUtil.addClass(this._pathRoot, 'leaflet-zoom-animated');
4745
4746				this.on({
4747					'zoomanim': this._animatePathZoom,
4748					'zoomend': this._endPathZoom
4749				});
4750			} else {
4751				L.DomUtil.addClass(this._pathRoot, 'leaflet-zoom-hide');
4752			}
4753
4754			this.on('moveend', this._updateSvgViewport);
4755			this._updateSvgViewport();
4756		}
4757	},
4758
4759	_animatePathZoom: function (e) {
4760		var scale = this.getZoomScale(e.zoom),
4761		    offset = this._getCenterOffset(e.center)._multiplyBy(-scale)._add(this._pathViewport.min);
4762
4763		this._pathRoot.style[L.DomUtil.TRANSFORM] =
4764		        L.DomUtil.getTranslateString(offset) + ' scale(' + scale + ') ';
4765
4766		this._pathZooming = true;
4767	},
4768
4769	_endPathZoom: function () {
4770		this._pathZooming = false;
4771	},
4772
4773	_updateSvgViewport: function () {
4774
4775		if (this._pathZooming) {
4776			// Do not update SVGs while a zoom animation is going on otherwise the animation will break.
4777			// When the zoom animation ends we will be updated again anyway
4778			// This fixes the case where you do a momentum move and zoom while the move is still ongoing.
4779			return;
4780		}
4781
4782		this._updatePathViewport();
4783
4784		var vp = this._pathViewport,
4785		    min = vp.min,
4786		    max = vp.max,
4787		    width = max.x - min.x,
4788		    height = max.y - min.y,
4789		    root = this._pathRoot,
4790		    pane = this._panes.overlayPane;
4791
4792		// Hack to make flicker on drag end on mobile webkit less irritating
4793		if (L.Browser.mobileWebkit) {
4794			pane.removeChild(root);
4795		}
4796
4797		L.DomUtil.setPosition(root, min);
4798		root.setAttribute('width', width);
4799		root.setAttribute('height', height);
4800		root.setAttribute('viewBox', [min.x, min.y, width, height].join(' '));
4801
4802		if (L.Browser.mobileWebkit) {
4803			pane.appendChild(root);
4804		}
4805	}
4806});
4807
4808
4809/*
4810 * Popup extension to L.Path (polylines, polygons, circles), adding popup-related methods.
4811 */
4812
4813L.Path.include({
4814
4815	bindPopup: function (content, options) {
4816
4817		if (content instanceof L.Popup) {
4818			this._popup = content;
4819		} else {
4820			if (!this._popup || options) {
4821				this._popup = new L.Popup(options, this);
4822			}
4823			this._popup.setContent(content);
4824		}
4825
4826		if (!this._popupHandlersAdded) {
4827			this
4828			    .on('click', this._openPopup, this)
4829			    .on('remove', this.closePopup, this);
4830
4831			this._popupHandlersAdded = true;
4832		}
4833
4834		return this;
4835	},
4836
4837	unbindPopup: function () {
4838		if (this._popup) {
4839			this._popup = null;
4840			this
4841			    .off('click', this._openPopup)
4842			    .off('remove', this.closePopup);
4843
4844			this._popupHandlersAdded = false;
4845		}
4846		return this;
4847	},
4848
4849	openPopup: function (latlng) {
4850
4851		if (this._popup) {
4852			// open the popup from one of the path's points if not specified
4853			latlng = latlng || this._latlng ||
4854			         this._latlngs[Math.floor(this._latlngs.length / 2)];
4855
4856			this._openPopup({latlng: latlng});
4857		}
4858
4859		return this;
4860	},
4861
4862	closePopup: function () {
4863		if (this._popup) {
4864			this._popup._close();
4865		}
4866		return this;
4867	},
4868
4869	_openPopup: function (e) {
4870		this._popup.setLatLng(e.latlng);
4871		this._map.openPopup(this._popup);
4872	}
4873});
4874
4875
4876/*
4877 * Vector rendering for IE6-8 through VML.
4878 * Thanks to Dmitry Baranovsky and his Raphael library for inspiration!
4879 */
4880
4881L.Browser.vml = !L.Browser.svg && (function () {
4882	try {
4883		var div = document.createElement('div');
4884		div.innerHTML = '<v:shape adj="1"/>';
4885
4886		var shape = div.firstChild;
4887		shape.style.behavior = 'url(#default#VML)';
4888
4889		return shape && (typeof shape.adj === 'object');
4890
4891	} catch (e) {
4892		return false;
4893	}
4894}());
4895
4896L.Path = L.Browser.svg || !L.Browser.vml ? L.Path : L.Path.extend({
4897	statics: {
4898		VML: true,
4899		CLIP_PADDING: 0.02
4900	},
4901
4902	_createElement: (function () {
4903		try {
4904			document.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml');
4905			return function (name) {
4906				return document.createElement('<lvml:' + name + ' class="lvml">');
4907			};
4908		} catch (e) {
4909			return function (name) {
4910				return document.createElement(
4911				        '<' + name + ' xmlns="urn:schemas-microsoft.com:vml" class="lvml">');
4912			};
4913		}
4914	}()),
4915
4916	_initPath: function () {
4917		var container = this._container = this._createElement('shape');
4918
4919		L.DomUtil.addClass(container, 'leaflet-vml-shape' +
4920			(this.options.className ? ' ' + this.options.className : ''));
4921
4922		if (this.options.clickable) {
4923			L.DomUtil.addClass(container, 'leaflet-clickable');
4924		}
4925
4926		container.coordsize = '1 1';
4927
4928		this._path = this._createElement('path');
4929		container.appendChild(this._path);
4930
4931		this._map._pathRoot.appendChild(container);
4932	},
4933
4934	_initStyle: function () {
4935		this._updateStyle();
4936	},
4937
4938	_updateStyle: function () {
4939		var stroke = this._stroke,
4940		    fill = this._fill,
4941		    options = this.options,
4942		    container = this._container;
4943
4944		container.stroked = options.stroke;
4945		container.filled = options.fill;
4946
4947		if (options.stroke) {
4948			if (!stroke) {
4949				stroke = this._stroke = this._createElement('stroke');
4950				stroke.endcap = 'round';
4951				container.appendChild(stroke);
4952			}
4953			stroke.weight = options.weight + 'px';
4954			stroke.color = options.color;
4955			stroke.opacity = options.opacity;
4956
4957			if (options.dashArray) {
4958				stroke.dashStyle = L.Util.isArray(options.dashArray) ?
4959				    options.dashArray.join(' ') :
4960				    options.dashArray.replace(/( *, *)/g, ' ');
4961			} else {
4962				stroke.dashStyle = '';
4963			}
4964			if (options.lineCap) {
4965				stroke.endcap = options.lineCap.replace('butt', 'flat');
4966			}
4967			if (options.lineJoin) {
4968				stroke.joinstyle = options.lineJoin;
4969			}
4970
4971		} else if (stroke) {
4972			container.removeChild(stroke);
4973			this._stroke = null;
4974		}
4975
4976		if (options.fill) {
4977			if (!fill) {
4978				fill = this._fill = this._createElement('fill');
4979				container.appendChild(fill);
4980			}
4981			fill.color = options.fillColor || options.color;
4982			fill.opacity = options.fillOpacity;
4983
4984		} else if (fill) {
4985			container.removeChild(fill);
4986			this._fill = null;
4987		}
4988	},
4989
4990	_updatePath: function () {
4991		var style = this._container.style;
4992
4993		style.display = 'none';
4994		this._path.v = this.getPathString() + ' '; // the space fixes IE empty path string bug
4995		style.display = '';
4996	}
4997});
4998
4999L.Map.include(L.Browser.svg || !L.Browser.vml ? {} : {
5000	_initPathRoot: function () {
5001		if (this._pathRoot) { return; }
5002
5003		var root = this._pathRoot = document.createElement('div');
5004		root.className = 'leaflet-vml-container';
5005		this._panes.overlayPane.appendChild(root);
5006
5007		this.on('moveend', this._updatePathViewport);
5008		this._updatePathViewport();
5009	}
5010});
5011
5012
5013/*
5014 * Vector rendering for all browsers that support canvas.
5015 */
5016
5017L.Browser.canvas = (function () {
5018	return !!document.createElement('canvas').getContext;
5019}());
5020
5021L.Path = (L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? L.Path : L.Path.extend({
5022	statics: {
5023		//CLIP_PADDING: 0.02, // not sure if there's a need to set it to a small value
5024		CANVAS: true,
5025		SVG: false
5026	},
5027
5028	redraw: function () {
5029		if (this._map) {
5030			this.projectLatlngs();
5031			this._requestUpdate();
5032		}
5033		return this;
5034	},
5035
5036	setStyle: function (style) {
5037		L.setOptions(this, style);
5038
5039		if (this._map) {
5040			this._updateStyle();
5041			this._requestUpdate();
5042		}
5043		return this;
5044	},
5045
5046	onRemove: function (map) {
5047		map
5048		    .off('viewreset', this.projectLatlngs, this)
5049		    .off('moveend', this._updatePath, this);
5050
5051		if (this.options.clickable) {
5052			this._map.off('click', this._onClick, this);
5053			this._map.off('mousemove', this._onMouseMove, this);
5054		}
5055
5056		this._requestUpdate();
5057		
5058		this.fire('remove');
5059		this._map = null;
5060	},
5061
5062	_requestUpdate: function () {
5063		if (this._map && !L.Path._updateRequest) {
5064			L.Path._updateRequest = L.Util.requestAnimFrame(this._fireMapMoveEnd, this._map);
5065		}
5066	},
5067
5068	_fireMapMoveEnd: function () {
5069		L.Path._updateRequest = null;
5070		this.fire('moveend');
5071	},
5072
5073	_initElements: function () {
5074		this._map._initPathRoot();
5075		this._ctx = this._map._canvasCtx;
5076	},
5077
5078	_updateStyle: function () {
5079		var options = this.options;
5080
5081		if (options.stroke) {
5082			this._ctx.lineWidth = options.weight;
5083			this._ctx.strokeStyle = options.color;
5084		}
5085		if (options.fill) {
5086			this._ctx.fillStyle = options.fillColor || options.color;
5087		}
5088
5089		if (options.lineCap) {
5090			this._ctx.lineCap = options.lineCap;
5091		}
5092		if (options.lineJoin) {
5093			this._ctx.lineJoin = options.lineJoin;
5094		}
5095	},
5096
5097	_drawPath: function () {
5098		var i, j, len, len2, point, drawMethod;
5099
5100		this._ctx.beginPath();
5101
5102		for (i = 0, len = this._parts.length; i < len; i++) {
5103			for (j = 0, len2 = this._parts[i].length; j < len2; j++) {
5104				point = this._parts[i][j];
5105				drawMethod = (j === 0 ? 'move' : 'line') + 'To';
5106
5107				this._ctx[drawMethod](point.x, point.y);
5108			}
5109			// TODO refactor ugly hack
5110			if (this instanceof L.Polygon) {
5111				this._ctx.closePath();
5112			}
5113		}
5114	},
5115
5116	_checkIfEmpty: function () {
5117		return !this._parts.length;
5118	},
5119
5120	_updatePath: function () {
5121		if (this._checkIfEmpty()) { return; }
5122
5123		var ctx = this._ctx,
5124		    options = this.options;
5125
5126		this._drawPath();
5127		ctx.save();
5128		this._updateStyle();
5129
5130		if (options.fill) {
5131			ctx.globalAlpha = options.fillOpacity;
5132			ctx.fill(options.fillRule || 'evenodd');
5133		}
5134
5135		if (options.stroke) {
5136			ctx.globalAlpha = options.opacity;
5137			ctx.stroke();
5138		}
5139
5140		ctx.restore();
5141
5142		// TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature
5143	},
5144
5145	_initEvents: function () {
5146		if (this.options.clickable) {
5147			this._map.on('mousemove', this._onMouseMove, this);
5148			this._map.on('click dblclick contextmenu', this._fireMouseEvent, this);
5149		}
5150	},
5151
5152	_fireMouseEvent: function (e) {
5153		if (this._containsPoint(e.layerPoint)) {
5154			this.fire(e.type, e);
5155		}
5156	},
5157
5158	_onMouseMove: function (e) {
5159		if (!this._map || this._map._animatingZoom) { return; }
5160
5161		// TODO don't do on each move
5162		if (this._containsPoint(e.layerPoint)) {
5163			this._ctx.canvas.style.cursor = 'pointer';
5164			this._mouseInside = true;
5165			this.fire('mouseover', e);
5166
5167		} else if (this._mouseInside) {
5168			this._ctx.canvas.style.cursor = '';
5169			this._mouseInside = false;
5170			this.fire('mouseout', e);
5171		}
5172	}
5173});
5174
5175L.Map.include((L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? {} : {
5176	_initPathRoot: function () {
5177		var root = this._pathRoot,
5178		    ctx;
5179
5180		if (!root) {
5181			root = this._pathRoot = document.createElement('canvas');
5182			root.style.position = 'absolute';
5183			ctx = this._canvasCtx = root.getContext('2d');
5184
5185			ctx.lineCap = 'round';
5186			ctx.lineJoin = 'round';
5187
5188			this._panes.overlayPane.appendChild(root);
5189
5190			if (this.options.zoomAnimation) {
5191				this._pathRoot.className = 'leaflet-zoom-animated';
5192				this.on('zoomanim', this._animatePathZoom);
5193				this.on('zoomend', this._endPathZoom);
5194			}
5195			this.on('moveend', this._updateCanvasViewport);
5196			this._updateCanvasViewport();
5197		}
5198	},
5199
5200	_updateCanvasViewport: function () {
5201		// don't redraw while zooming. See _updateSvgViewport for more details
5202		if (this._pathZooming) { return; }
5203		this._updatePathViewport();
5204
5205		var vp = this._pathViewport,
5206		    min = vp.min,
5207		    size = vp.max.subtract(min),
5208		    root = this._pathRoot;
5209
5210		//TODO check if this works properly on mobile webkit
5211		L.DomUtil.setPosition(root, min);
5212		root.width = size.x;
5213		root.height = size.y;
5214		root.getContext('2d').translate(-min.x, -min.y);
5215	}
5216});
5217
5218
5219/*
5220 * L.LineUtil contains different utility functions for line segments
5221 * and polylines (clipping, simplification, distances, etc.)
5222 */
5223
5224/*jshint bitwise:false */ // allow bitwise operations for this file
5225
5226L.LineUtil = {
5227
5228	// Simplify polyline with vertex reduction and Douglas-Peucker simplification.
5229	// Improves rendering performance dramatically by lessening the number of points to draw.
5230
5231	simplify: function (/*Point[]*/ points, /*Number*/ tolerance) {
5232		if (!tolerance || !points.length) {
5233			return points.slice();
5234		}
5235
5236		var sqTolerance = tolerance * tolerance;
5237
5238		// stage 1: vertex reduction
5239		points = this._reducePoints(points, sqTolerance);
5240
5241		// stage 2: Douglas-Peucker simplification
5242		points = this._simplifyDP(points, sqTolerance);
5243
5244		return points;
5245	},
5246
5247	// distance from a point to a segment between two points
5248	pointToSegmentDistance:  function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
5249		return Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true));
5250	},
5251
5252	closestPointOnSegment: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
5253		return this._sqClosestPointOnSegment(p, p1, p2);
5254	},
5255
5256	// Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm
5257	_simplifyDP: function (points, sqTolerance) {
5258
5259		var len = points.length,
5260		    ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array,
5261		    markers = new ArrayConstructor(len);
5262
5263		markers[0] = markers[len - 1] = 1;
5264
5265		this._simplifyDPStep(points, markers, sqTolerance, 0, len - 1);
5266
5267		var i,
5268		    newPoints = [];
5269
5270		for (i = 0; i < len; i++) {
5271			if (markers[i]) {
5272				newPoints.push(points[i]);
5273			}
5274		}
5275
5276		return newPoints;
5277	},
5278
5279	_simplifyDPStep: function (points, markers, sqTolerance, first, last) {
5280
5281		var maxSqDist = 0,
5282		    index, i, sqDist;
5283
5284		for (i = first + 1; i <= last - 1; i++) {
5285			sqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true);
5286
5287			if (sqDist > maxSqDist) {
5288				index = i;
5289				maxSqDist = sqDist;
5290			}
5291		}
5292
5293		if (maxSqDist > sqTolerance) {
5294			markers[index] = 1;
5295
5296			this._simplifyDPStep(points, markers, sqTolerance, first, index);
5297			this._simplifyDPStep(points, markers, sqTolerance, index, last);
5298		}
5299	},
5300
5301	// reduce points that are too close to each other to a single point
5302	_reducePoints: function (points, sqTolerance) {
5303		var reducedPoints = [points[0]];
5304
5305		for (var i = 1, prev = 0, len = points.length; i < len; i++) {
5306			if (this._sqDist(points[i], points[prev]) > sqTolerance) {
5307				reducedPoints.push(points[i]);
5308				prev = i;
5309			}
5310		}
5311		if (prev < len - 1) {
5312			reducedPoints.push(points[len - 1]);
5313		}
5314		return reducedPoints;
5315	},
5316
5317	// Cohen-Sutherland line clipping algorithm.
5318	// Used to avoid rendering parts of a polyline that are not currently visible.
5319
5320	clipSegment: function (a, b, bounds, useLastCode) {
5321		var codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds),
5322		    codeB = this._getBitCode(b, bounds),
5323
5324		    codeOut, p, newCode;
5325
5326		// save 2nd code to avoid calculating it on the next segment
5327		this._lastCode = codeB;
5328
5329		while (true) {
5330			// if a,b is inside the clip window (trivial accept)
5331			if (!(codeA | codeB)) {
5332				return [a, b];
5333			// if a,b is outside the clip window (trivial reject)
5334			} else if (codeA & codeB) {
5335				return false;
5336			// other cases
5337			} else {
5338				codeOut = codeA || codeB;
5339				p = this._getEdgeIntersection(a, b, codeOut, bounds);
5340				newCode = this._getBitCode(p, bounds);
5341
5342				if (codeOut === codeA) {
5343					a = p;
5344					codeA = newCode;
5345				} else {
5346					b = p;
5347					codeB = newCode;
5348				}
5349			}
5350		}
5351	},
5352
5353	_getEdgeIntersection: function (a, b, code, bounds) {
5354		var dx = b.x - a.x,
5355		    dy = b.y - a.y,
5356		    min = bounds.min,
5357		    max = bounds.max;
5358
5359		if (code & 8) { // top
5360			return new L.Point(a.x + dx * (max.y - a.y) / dy, max.y);
5361		} else if (code & 4) { // bottom
5362			return new L.Point(a.x + dx * (min.y - a.y) / dy, min.y);
5363		} else if (code & 2) { // right
5364			return new L.Point(max.x, a.y + dy * (max.x - a.x) / dx);
5365		} else if (code & 1) { // left
5366			return new L.Point(min.x, a.y + dy * (min.x - a.x) / dx);
5367		}
5368	},
5369
5370	_getBitCode: function (/*Point*/ p, bounds) {
5371		var code = 0;
5372
5373		if (p.x < bounds.min.x) { // left
5374			code |= 1;
5375		} else if (p.x > bounds.max.x) { // right
5376			code |= 2;
5377		}
5378		if (p.y < bounds.min.y) { // bottom
5379			code |= 4;
5380		} else if (p.y > bounds.max.y) { // top
5381			code |= 8;
5382		}
5383
5384		return code;
5385	},
5386
5387	// square distance (to avoid unnecessary Math.sqrt calls)
5388	_sqDist: function (p1, p2) {
5389		var dx = p2.x - p1.x,
5390		    dy = p2.y - p1.y;
5391		return dx * dx + dy * dy;
5392	},
5393
5394	// return closest point on segment or distance to that point
5395	_sqClosestPointOnSegment: function (p, p1, p2, sqDist) {
5396		var x = p1.x,
5397		    y = p1.y,
5398		    dx = p2.x - x,
5399		    dy = p2.y - y,
5400		    dot = dx * dx + dy * dy,
5401		    t;
5402
5403		if (dot > 0) {
5404			t = ((p.x - x) * dx + (p.y - y) * dy) / dot;
5405
5406			if (t > 1) {
5407				x = p2.x;
5408				y = p2.y;
5409			} else if (t > 0) {
5410				x += dx * t;
5411				y += dy * t;
5412			}
5413		}
5414
5415		dx = p.x - x;
5416		dy = p.y - y;
5417
5418		return sqDist ? dx * dx + dy * dy : new L.Point(x, y);
5419	}
5420};
5421
5422
5423/*
5424 * L.Polyline is used to display polylines on a map.
5425 */
5426
5427L.Polyline = L.Path.extend({
5428	initialize: function (latlngs, options) {
5429		L.Path.prototype.initialize.call(this, options);
5430
5431		this._latlngs = this._convertLatLngs(latlngs);
5432	},
5433
5434	options: {
5435		// how much to simplify the polyline on each zoom level
5436		// more = better performance and smoother look, less = more accurate
5437		smoothFactor: 1.0,
5438		noClip: false
5439	},
5440
5441	projectLatlngs: function () {
5442		this._originalPoints = [];
5443
5444		for (var i = 0, len = this._latlngs.length; i < len; i++) {
5445			this._originalPoints[i] = this._map.latLngToLayerPoint(this._latlngs[i]);
5446		}
5447	},
5448
5449	getPathString: function () {
5450		for (var i = 0, len = this._parts.length, str = ''; i < len; i++) {
5451			str += this._getPathPartStr(this._parts[i]);
5452		}
5453		return str;
5454	},
5455
5456	getLatLngs: function () {
5457		return this._latlngs;
5458	},
5459
5460	setLatLngs: function (latlngs) {
5461		this._latlngs = this._convertLatLngs(latlngs);
5462		return this.redraw();
5463	},
5464
5465	addLatLng: function (latlng) {
5466		this._latlngs.push(L.latLng(latlng));
5467		return this.redraw();
5468	},
5469
5470	spliceLatLngs: function () { // (Number index, Number howMany)
5471		var removed = [].splice.apply(this._latlngs, arguments);
5472		this._convertLatLngs(this._latlngs, true);
5473		this.redraw();
5474		return removed;
5475	},
5476
5477	closestLayerPoint: function (p) {
5478		var minDistance = Infinity, parts = this._parts, p1, p2, minPoint = null;
5479
5480		for (var j = 0, jLen = parts.length; j < jLen; j++) {
5481			var points = parts[j];
5482			for (var i = 1, len = points.length; i < len; i++) {
5483				p1 = points[i - 1];
5484				p2 = points[i];
5485				var sqDist = L.LineUtil._sqClosestPointOnSegment(p, p1, p2, true);
5486				if (sqDist < minDistance) {
5487					minDistance = sqDist;
5488					minPoint = L.LineUtil._sqClosestPointOnSegment(p, p1, p2);
5489				}
5490			}
5491		}
5492		if (minPoint) {
5493			minPoint.distance = Math.sqrt(minDistance);
5494		}
5495		return minPoint;
5496	},
5497
5498	getBounds: function () {
5499		return new L.LatLngBounds(this.getLatLngs());
5500	},
5501
5502	_convertLatLngs: function (latlngs, overwrite) {
5503		var i, len, target = overwrite ? latlngs : [];
5504
5505		for (i = 0, len = latlngs.length; i < len; i++) {
5506			if (L.Util.isArray(latlngs[i]) && typeof latlngs[i][0] !== 'number') {
5507				return;
5508			}
5509			target[i] = L.latLng(latlngs[i]);
5510		}
5511		return target;
5512	},
5513
5514	_initEvents: function () {
5515		L.Path.prototype._initEvents.call(this);
5516	},
5517
5518	_getPathPartStr: function (points) {
5519		var round = L.Path.VML;
5520
5521		for (var j = 0, len2 = points.length, str = '', p; j < len2; j++) {
5522			p = points[j];
5523			if (round) {
5524				p._round();
5525			}
5526			str += (j ? 'L' : 'M') + p.x + ' ' + p.y;
5527		}
5528		return str;
5529	},
5530
5531	_clipPoints: function () {
5532		var points = this._originalPoints,
5533		    len = points.length,
5534		    i, k, segment;
5535
5536		if (this.options.noClip) {
5537			this._parts = [points];
5538			return;
5539		}
5540
5541		this._parts = [];
5542
5543		var parts = this._parts,
5544		    vp = this._map._pathViewport,
5545		    lu = L.LineUtil;
5546
5547		for (i = 0, k = 0; i < len - 1; i++) {
5548			segment = lu.clipSegment(points[i], points[i + 1], vp, i);
5549			if (!segment) {
5550				continue;
5551			}
5552
5553			parts[k] = parts[k] || [];
5554			parts[k].push(segment[0]);
5555
5556			// if segment goes out of screen, or it's the last one, it's the end of the line part
5557			if ((segment[1] !== points[i + 1]) || (i === len - 2)) {
5558				parts[k].push(segment[1]);
5559				k++;
5560			}
5561		}
5562	},
5563
5564	// simplify each clipped part of the polyline
5565	_simplifyPoints: function () {
5566		var parts = this._parts,
5567		    lu = L.LineUtil;
5568
5569		for (var i = 0, len = parts.length; i < len; i++) {
5570			parts[i] = lu.simplify(parts[i], this.options.smoothFactor);
5571		}
5572	},
5573
5574	_updatePath: function () {
5575		if (!this._map) { return; }
5576
5577		this._clipPoints();
5578		this._simplifyPoints();
5579
5580		L.Path.prototype._updatePath.call(this);
5581	}
5582});
5583
5584L.polyline = function (latlngs, options) {
5585	return new L.Polyline(latlngs, options);
5586};
5587
5588
5589/*
5590 * L.PolyUtil contains utility functions for polygons (clipping, etc.).
5591 */
5592
5593/*jshint bitwise:false */ // allow bitwise operations here
5594
5595L.PolyUtil = {};
5596
5597/*
5598 * Sutherland-Hodgeman polygon clipping algorithm.
5599 * Used to avoid rendering parts of a polygon that are not currently visible.
5600 */
5601L.PolyUtil.clipPolygon = function (points, bounds) {
5602	var clippedPoints,
5603	    edges = [1, 4, 2, 8],
5604	    i, j, k,
5605	    a, b,
5606	    len, edge, p,
5607	    lu = L.LineUtil;
5608
5609	for (i = 0, len = points.length; i < len; i++) {
5610		points[i]._code = lu._getBitCode(points[i], bounds);
5611	}
5612
5613	// for each edge (left, bottom, right, top)
5614	for (k = 0; k < 4; k++) {
5615		edge = edges[k];
5616		clippedPoints = [];
5617
5618		for (i = 0, len = points.length, j = len - 1; i < len; j = i++) {
5619			a = points[i];
5620			b = points[j];
5621
5622			// if a is inside the clip window
5623			if (!(a._code & edge)) {
5624				// if b is outside the clip window (a->b goes out of screen)
5625				if (b._code & edge) {
5626					p = lu._getEdgeIntersection(b, a, edge, bounds);
5627					p._code = lu._getBitCode(p, bounds);
5628					clippedPoints.push(p);
5629				}
5630				clippedPoints.push(a);
5631
5632			// else if b is inside the clip window (a->b enters the screen)
5633			} else if (!(b._code & edge)) {
5634				p = lu._getEdgeIntersection(b, a, edge, bounds);
5635				p._code = lu._getBitCode(p, bounds);
5636				clippedPoints.push(p);
5637			}
5638		}
5639		points = clippedPoints;
5640	}
5641
5642	return points;
5643};
5644
5645
5646/*
5647 * L.Polygon is used to display polygons on a map.
5648 */
5649
5650L.Polygon = L.Polyline.extend({
5651	options: {
5652		fill: true
5653	},
5654
5655	initialize: function (latlngs, options) {
5656		L.Polyline.prototype.initialize.call(this, latlngs, options);
5657		this._initWithHoles(latlngs);
5658	},
5659
5660	_initWithHoles: function (latlngs) {
5661		var i, len, hole;
5662		if (latlngs && L.Util.isArray(latlngs[0]) && (typeof latlngs[0][0] !== 'number')) {
5663			this._latlngs = this._convertLatLngs(latlngs[0]);
5664			this._holes = latlngs.slice(1);
5665
5666			for (i = 0, len = this._holes.length; i < len; i++) {
5667				hole = this._holes[i] = this._convertLatLngs(this._holes[i]);
5668				if (hole[0].equals(hole[hole.length - 1])) {
5669					hole.pop();
5670				}
5671			}
5672		}
5673
5674		// filter out last point if its equal to the first one
5675		latlngs = this._latlngs;
5676
5677		if (latlngs.length >= 2 && latlngs[0].equals(latlngs[latlngs.length - 1])) {
5678			latlngs.pop();
5679		}
5680	},
5681
5682	projectLatlngs: function () {
5683		L.Polyline.prototype.projectLatlngs.call(this);
5684
5685		// project polygon holes points
5686		// TODO move this logic to Polyline to get rid of duplication
5687		this._holePoints = [];
5688
5689		if (!this._holes) { return; }
5690
5691		var i, j, len, len2;
5692
5693		for (i = 0, len = this._holes.length; i < len; i++) {
5694			this._holePoints[i] = [];
5695
5696			for (j = 0, len2 = this._holes[i].length; j < len2; j++) {
5697				this._holePoints[i][j] = this._map.latLngToLayerPoint(this._holes[i][j]);
5698			}
5699		}
5700	},
5701
5702	setLatLngs: function (latlngs) {
5703		if (latlngs && L.Util.isArray(latlngs[0]) && (typeof latlngs[0][0] !== 'number')) {
5704			this._initWithHoles(latlngs);
5705			return this.redraw();
5706		} else {
5707			return L.Polyline.prototype.setLatLngs.call(this, latlngs);
5708		}
5709	},
5710
5711	_clipPoints: function () {
5712		var points = this._originalPoints,
5713		    newParts = [];
5714
5715		this._parts = [points].concat(this._holePoints);
5716
5717		if (this.options.noClip) { return; }
5718
5719		for (var i = 0, len = this._parts.length; i < len; i++) {
5720			var clipped = L.PolyUtil.clipPolygon(this._parts[i], this._map._pathViewport);
5721			if (clipped.length) {
5722				newParts.push(clipped);
5723			}
5724		}
5725
5726		this._parts = newParts;
5727	},
5728
5729	_getPathPartStr: function (points) {
5730		var str = L.Polyline.prototype._getPathPartStr.call(this, points);
5731		return str + (L.Browser.svg ? 'z' : 'x');
5732	}
5733});
5734
5735L.polygon = function (latlngs, options) {
5736	return new L.Polygon(latlngs, options);
5737};
5738
5739
5740/*
5741 * Contains L.MultiPolyline and L.MultiPolygon layers.
5742 */
5743
5744(function () {
5745	function createMulti(Klass) {
5746
5747		return L.FeatureGroup.extend({
5748
5749			initialize: function (latlngs, options) {
5750				this._layers = {};
5751				this._options = options;
5752				this.setLatLngs(latlngs);
5753			},
5754
5755			setLatLngs: function (latlngs) {
5756				var i = 0,
5757				    len = latlngs.length;
5758
5759				this.eachLayer(function (layer) {
5760					if (i < len) {
5761						layer.setLatLngs(latlngs[i++]);
5762					} else {
5763						this.removeLayer(layer);
5764					}
5765				}, this);
5766
5767				while (i < len) {
5768					this.addLayer(new Klass(latlngs[i++], this._options));
5769				}
5770
5771				return this;
5772			},
5773
5774			getLatLngs: function () {
5775				var latlngs = [];
5776
5777				this.eachLayer(function (layer) {
5778					latlngs.push(layer.getLatLngs());
5779				});
5780
5781				return latlngs;
5782			}
5783		});
5784	}
5785
5786	L.MultiPolyline = createMulti(L.Polyline);
5787	L.MultiPolygon = createMulti(L.Polygon);
5788
5789	L.multiPolyline = function (latlngs, options) {
5790		return new L.MultiPolyline(latlngs, options);
5791	};
5792
5793	L.multiPolygon = function (latlngs, options) {
5794		return new L.MultiPolygon(latlngs, options);
5795	};
5796}());
5797
5798
5799/*
5800 * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object.
5801 */
5802
5803L.Rectangle = L.Polygon.extend({
5804	initialize: function (latLngBounds, options) {
5805		L.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options);
5806	},
5807
5808	setBounds: function (latLngBounds) {
5809		this.setLatLngs(this._boundsToLatLngs(latLngBounds));
5810	},
5811
5812	_boundsToLatLngs: function (latLngBounds) {
5813		latLngBounds = L.latLngBounds(latLngBounds);
5814		return [
5815			latLngBounds.getSouthWest(),
5816			latLngBounds.getNorthWest(),
5817			latLngBounds.getNorthEast(),
5818			latLngBounds.getSouthEast()
5819		];
5820	}
5821});
5822
5823L.rectangle = function (latLngBounds, options) {
5824	return new L.Rectangle(latLngBounds, options);
5825};
5826
5827
5828/*
5829 * L.Circle is a circle overlay (with a certain radius in meters).
5830 */
5831
5832L.Circle = L.Path.extend({
5833	initialize: function (latlng, radius, options) {
5834		L.Path.prototype.initialize.call(this, options);
5835
5836		this._latlng = L.latLng(latlng);
5837		this._mRadius = radius;
5838	},
5839
5840	options: {
5841		fill: true
5842	},
5843
5844	setLatLng: function (latlng) {
5845		this._latlng = L.latLng(latlng);
5846		return this.redraw();
5847	},
5848
5849	setRadius: function (radius) {
5850		this._mRadius = radius;
5851		return this.redraw();
5852	},
5853
5854	projectLatlngs: function () {
5855		var lngRadius = this._getLngRadius(),
5856		    latlng = this._latlng,
5857		    pointLeft = this._map.latLngToLayerPoint([latlng.lat, latlng.lng - lngRadius]);
5858
5859		this._point = this._map.latLngToLayerPoint(latlng);
5860		this._radius = Math.max(this._point.x - pointLeft.x, 1);
5861	},
5862
5863	getBounds: function () {
5864		var lngRadius = this._getLngRadius(),
5865		    latRadius = (this._mRadius / 40075017) * 360,
5866		    latlng = this._latlng;
5867
5868		return new L.LatLngBounds(
5869		        [latlng.lat - latRadius, latlng.lng - lngRadius],
5870		        [latlng.lat + latRadius, latlng.lng + lngRadius]);
5871	},
5872
5873	getLatLng: function () {
5874		return this._latlng;
5875	},
5876
5877	getPathString: function () {
5878		var p = this._point,
5879		    r = this._radius;
5880
5881		if (this._checkIfEmpty()) {
5882			return '';
5883		}
5884
5885		if (L.Browser.svg) {
5886			return 'M' + p.x + ',' + (p.y - r) +
5887			       'A' + r + ',' + r + ',0,1,1,' +
5888			       (p.x - 0.1) + ',' + (p.y - r) + ' z';
5889		} else {
5890			p._round();
5891			r = Math.round(r);
5892			return 'AL ' + p.x + ',' + p.y + ' ' + r + ',' + r + ' 0,' + (65535 * 360);
5893		}
5894	},
5895
5896	getRadius: function () {
5897		return this._mRadius;
5898	},
5899
5900	// TODO Earth hardcoded, move into projection code!
5901
5902	_getLatRadius: function () {
5903		return (this._mRadius / 40075017) * 360;
5904	},
5905
5906	_getLngRadius: function () {
5907		return this._getLatRadius() / Math.cos(L.LatLng.DEG_TO_RAD * this._latlng.lat);
5908	},
5909
5910	_checkIfEmpty: function () {
5911		if (!this._map) {
5912			return false;
5913		}
5914		var vp = this._map._pathViewport,
5915		    r = this._radius,
5916		    p = this._point;
5917
5918		return p.x - r > vp.max.x || p.y - r > vp.max.y ||
5919		       p.x + r < vp.min.x || p.y + r < vp.min.y;
5920	}
5921});
5922
5923L.circle = function (latlng, radius, options) {
5924	return new L.Circle(latlng, radius, options);
5925};
5926
5927
5928/*
5929 * L.CircleMarker is a circle overlay with a permanent pixel radius.
5930 */
5931
5932L.CircleMarker = L.Circle.extend({
5933	options: {
5934		radius: 10,
5935		weight: 2
5936	},
5937
5938	initialize: function (latlng, options) {
5939		L.Circle.prototype.initialize.call(this, latlng, null, options);
5940		this._radius = this.options.radius;
5941	},
5942
5943	projectLatlngs: function () {
5944		this._point = this._map.latLngToLayerPoint(this._latlng);
5945	},
5946
5947	_updateStyle : function () {
5948		L.Circle.prototype._updateStyle.call(this);
5949		this.setRadius(this.options.radius);
5950	},
5951
5952	setLatLng: function (latlng) {
5953		L.Circle.prototype.setLatLng.call(this, latlng);
5954		if (this._popup && this._popup._isOpen) {
5955			this._popup.setLatLng(latlng);
5956		}
5957		return this;
5958	},
5959
5960	setRadius: function (radius) {
5961		this.options.radius = this._radius = radius;
5962		return this.redraw();
5963	},
5964
5965	getRadius: function () {
5966		return this._radius;
5967	}
5968});
5969
5970L.circleMarker = function (latlng, options) {
5971	return new L.CircleMarker(latlng, options);
5972};
5973
5974
5975/*
5976 * Extends L.Polyline to be able to manually detect clicks on Canvas-rendered polylines.
5977 */
5978
5979L.Polyline.include(!L.Path.CANVAS ? {} : {
5980	_containsPoint: function (p, closed) {
5981		var i, j, k, len, len2, dist, part,
5982		    w = this.options.weight / 2;
5983
5984		if (L.Browser.touch) {
5985			w += 10; // polyline click tolerance on touch devices
5986		}
5987
5988		for (i = 0, len = this._parts.length; i < len; i++) {
5989			part = this._parts[i];
5990			for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
5991				if (!closed && (j === 0)) {
5992					continue;
5993				}
5994
5995				dist = L.LineUtil.pointToSegmentDistance(p, part[k], part[j]);
5996
5997				if (dist <= w) {
5998					return true;
5999				}
6000			}
6001		}
6002		return false;
6003	}
6004});
6005
6006
6007/*
6008 * Extends L.Polygon to be able to manually detect clicks on Canvas-rendered polygons.
6009 */
6010
6011L.Polygon.include(!L.Path.CANVAS ? {} : {
6012	_containsPoint: function (p) {
6013		var inside = false,
6014		    part, p1, p2,
6015		    i, j, k,
6016		    len, len2;
6017
6018		// TODO optimization: check if within bounds first
6019
6020		if (L.Polyline.prototype._containsPoint.call(this, p, true)) {
6021			// click on polygon border
6022			return true;
6023		}
6024
6025		// ray casting algorithm for detecting if point is in polygon
6026
6027		for (i = 0, len = this._parts.length; i < len; i++) {
6028			part = this._parts[i];
6029
6030			for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
6031				p1 = part[j];
6032				p2 = part[k];
6033
6034				if (((p1.y > p.y) !== (p2.y > p.y)) &&
6035						(p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) {
6036					inside = !inside;
6037				}
6038			}
6039		}
6040
6041		return inside;
6042	}
6043});
6044
6045
6046/*
6047 * Extends L.Circle with Canvas-specific code.
6048 */
6049
6050L.Circle.include(!L.Path.CANVAS ? {} : {
6051	_drawPath: function () {
6052		var p = this._point;
6053		this._ctx.beginPath();
6054		this._ctx.arc(p.x, p.y, this._radius, 0, Math.PI * 2, false);
6055	},
6056
6057	_containsPoint: function (p) {
6058		var center = this._point,
6059		    w2 = this.options.stroke ? this.options.weight / 2 : 0;
6060
6061		return (p.distanceTo(center) <= this._radius + w2);
6062	}
6063});
6064
6065
6066/*
6067 * CircleMarker canvas specific drawing parts.
6068 */
6069
6070L.CircleMarker.include(!L.Path.CANVAS ? {} : {
6071	_updateStyle: function () {
6072		L.Path.prototype._updateStyle.call(this);
6073	}
6074});
6075
6076
6077/*
6078 * L.GeoJSON turns any GeoJSON data into a Leaflet layer.
6079 */
6080
6081L.GeoJSON = L.FeatureGroup.extend({
6082
6083	initialize: function (geojson, options) {
6084		L.setOptions(this, options);
6085
6086		this._layers = {};
6087
6088		if (geojson) {
6089			this.addData(geojson);
6090		}
6091	},
6092
6093	addData: function (geojson) {
6094		var features = L.Util.isArray(geojson) ? geojson : geojson.features,
6095		    i, len, feature;
6096
6097		if (features) {
6098			for (i = 0, len = features.length; i < len; i++) {
6099				// Only add this if geometry or geometries are set and not null
6100				feature = features[i];
6101				if (feature.geometries || feature.geometry || feature.features || feature.coordinates) {
6102					this.addData(features[i]);
6103				}
6104			}
6105			return this;
6106		}
6107
6108		var options = this.options;
6109
6110		if (options.filter && !options.filter(geojson)) { return; }
6111
6112		var layer = L.GeoJSON.geometryToLayer(geojson, options.pointToLayer, options.coordsToLatLng, options);
6113		layer.feature = L.GeoJSON.asFeature(geojson);
6114
6115		layer.defaultOptions = layer.options;
6116		this.resetStyle(layer);
6117
6118		if (options.onEachFeature) {
6119			options.onEachFeature(geojson, layer);
6120		}
6121
6122		return this.addLayer(layer);
6123	},
6124
6125	resetStyle: function (layer) {
6126		var style = this.options.style;
6127		if (style) {
6128			// reset any custom styles
6129			L.Util.extend(layer.options, layer.defaultOptions);
6130
6131			this._setLayerStyle(layer, style);
6132		}
6133	},
6134
6135	setStyle: function (style) {
6136		this.eachLayer(function (layer) {
6137			this._setLayerStyle(layer, style);
6138		}, this);
6139	},
6140
6141	_setLayerStyle: function (layer, style) {
6142		if (typeof style === 'function') {
6143			style = style(layer.feature);
6144		}
6145		if (layer.setStyle) {
6146			layer.setStyle(style);
6147		}
6148	}
6149});
6150
6151L.extend(L.GeoJSON, {
6152	geometryToLayer: function (geojson, pointToLayer, coordsToLatLng, vectorOptions) {
6153		var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson,
6154		    coords = geometry.coordinates,
6155		    layers = [],
6156		    latlng, latlngs, i, len;
6157
6158		coordsToLatLng = coordsToLatLng || this.coordsToLatLng;
6159
6160		switch (geometry.type) {
6161		case 'Point':
6162			latlng = coordsToLatLng(coords);
6163			return pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng);
6164
6165		case 'MultiPoint':
6166			for (i = 0, len = coords.length; i < len; i++) {
6167				latlng = coordsToLatLng(coords[i]);
6168				layers.push(pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng));
6169			}
6170			return new L.FeatureGroup(layers);
6171
6172		case 'LineString':
6173			latlngs = this.coordsToLatLngs(coords, 0, coordsToLatLng);
6174			return new L.Polyline(latlngs, vectorOptions);
6175
6176		case 'Polygon':
6177			if (coords.length === 2 && !coords[1].length) {
6178				throw new Error('Invalid GeoJSON object.');
6179			}
6180			latlngs = this.coordsToLatLngs(coords, 1, coordsToLatLng);
6181			return new L.Polygon(latlngs, vectorOptions);
6182
6183		case 'MultiLineString':
6184			latlngs = this.coordsToLatLngs(coords, 1, coordsToLatLng);
6185			return new L.MultiPolyline(latlngs, vectorOptions);
6186
6187		case 'MultiPolygon':
6188			latlngs = this.coordsToLatLngs(coords, 2, coordsToLatLng);
6189			return new L.MultiPolygon(latlngs, vectorOptions);
6190
6191		case 'GeometryCollection':
6192			for (i = 0, len = geometry.geometries.length; i < len; i++) {
6193
6194				layers.push(this.geometryToLayer({
6195					geometry: geometry.geometries[i],
6196					type: 'Feature',
6197					properties: geojson.properties
6198				}, pointToLayer, coordsToLatLng, vectorOptions));
6199			}
6200			return new L.FeatureGroup(layers);
6201
6202		default:
6203			throw new Error('Invalid GeoJSON object.');
6204		}
6205	},
6206
6207	coordsToLatLng: function (coords) { // (Array[, Boolean]) -> LatLng
6208		return new L.LatLng(coords[1], coords[0], coords[2]);
6209	},
6210
6211	coordsToLatLngs: function (coords, levelsDeep, coordsToLatLng) { // (Array[, Number, Function]) -> Array
6212		var latlng, i, len,
6213		    latlngs = [];
6214
6215		for (i = 0, len = coords.length; i < len; i++) {
6216			latlng = levelsDeep ?
6217			        this.coordsToLatLngs(coords[i], levelsDeep - 1, coordsToLatLng) :
6218			        (coordsToLatLng || this.coordsToLatLng)(coords[i]);
6219
6220			latlngs.push(latlng);
6221		}
6222
6223		return latlngs;
6224	},
6225
6226	latLngToCoords: function (latlng) {
6227		var coords = [latlng.lng, latlng.lat];
6228
6229		if (latlng.alt !== undefined) {
6230			coords.push(latlng.alt);
6231		}
6232		return coords;
6233	},
6234
6235	latLngsToCoords: function (latLngs) {
6236		var coords = [];
6237
6238		for (var i = 0, len = latLngs.length; i < len; i++) {
6239			coords.push(L.GeoJSON.latLngToCoords(latLngs[i]));
6240		}
6241
6242		return coords;
6243	},
6244
6245	getFeature: function (layer, newGeometry) {
6246		return layer.feature ? L.extend({}, layer.feature, {geometry: newGeometry}) : L.GeoJSON.asFeature(newGeometry);
6247	},
6248
6249	asFeature: function (geoJSON) {
6250		if (geoJSON.type === 'Feature') {
6251			return geoJSON;
6252		}
6253
6254		return {
6255			type: 'Feature',
6256			properties: {},
6257			geometry: geoJSON
6258		};
6259	}
6260});
6261
6262var PointToGeoJSON = {
6263	toGeoJSON: function () {
6264		return L.GeoJSON.getFeature(this, {
6265			type: 'Point',
6266			coordinates: L.GeoJSON.latLngToCoords(this.getLatLng())
6267		});
6268	}
6269};
6270
6271L.Marker.include(PointToGeoJSON);
6272L.Circle.include(PointToGeoJSON);
6273L.CircleMarker.include(PointToGeoJSON);
6274
6275L.Polyline.include({
6276	toGeoJSON: function () {
6277		return L.GeoJSON.getFeature(this, {
6278			type: 'LineString',
6279			coordinates: L.GeoJSON.latLngsToCoords(this.getLatLngs())
6280		});
6281	}
6282});
6283
6284L.Polygon.include({
6285	toGeoJSON: function () {
6286		var coords = [L.GeoJSON.latLngsToCoords(this.getLatLngs())],
6287		    i, len, hole;
6288
6289		coords[0].push(coords[0][0]);
6290
6291		if (this._holes) {
6292			for (i = 0, len = this._holes.length; i < len; i++) {
6293				hole = L.GeoJSON.latLngsToCoords(this._holes[i]);
6294				hole.push(hole[0]);
6295				coords.push(hole);
6296			}
6297		}
6298
6299		return L.GeoJSON.getFeature(this, {
6300			type: 'Polygon',
6301			coordinates: coords
6302		});
6303	}
6304});
6305
6306(function () {
6307	function multiToGeoJSON(type) {
6308		return function () {
6309			var coords = [];
6310
6311			this.eachLayer(function (layer) {
6312				coords.push(layer.toGeoJSON().geometry.coordinates);
6313			});
6314
6315			return L.GeoJSON.getFeature(this, {
6316				type: type,
6317				coordinates: coords
6318			});
6319		};
6320	}
6321
6322	L.MultiPolyline.include({toGeoJSON: multiToGeoJSON('MultiLineString')});
6323	L.MultiPolygon.include({toGeoJSON: multiToGeoJSON('MultiPolygon')});
6324
6325	L.LayerGroup.include({
6326		toGeoJSON: function () {
6327
6328			var geometry = this.feature && this.feature.geometry,
6329				jsons = [],
6330				json;
6331
6332			if (geometry && geometry.type === 'MultiPoint') {
6333				return multiToGeoJSON('MultiPoint').call(this);
6334			}
6335
6336			var isGeometryCollection = geometry && geometry.type === 'GeometryCollection';
6337
6338			this.eachLayer(function (layer) {
6339				if (layer.toGeoJSON) {
6340					json = layer.toGeoJSON();
6341					jsons.push(isGeometryCollection ? json.geometry : L.GeoJSON.asFeature(json));
6342				}
6343			});
6344
6345			if (isGeometryCollection) {
6346				return L.GeoJSON.getFeature(this, {
6347					geometries: jsons,
6348					type: 'GeometryCollection'
6349				});
6350			}
6351
6352			return {
6353				type: 'FeatureCollection',
6354				features: jsons
6355			};
6356		}
6357	});
6358}());
6359
6360L.geoJson = function (geojson, options) {
6361	return new L.GeoJSON(geojson, options);
6362};
6363
6364
6365/*
6366 * L.DomEvent contains functions for working with DOM events.
6367 */
6368
6369L.DomEvent = {
6370	/* inspired by John Resig, Dean Edwards and YUI addEvent implementations */
6371	addListener: function (obj, type, fn, context) { // (HTMLElement, String, Function[, Object])
6372
6373		var id = L.stamp(fn),
6374		    key = '_leaflet_' + type + id,
6375		    handler, originalHandler, newType;
6376
6377		if (obj[key]) { return this; }
6378
6379		handler = function (e) {
6380			return fn.call(context || obj, e || L.DomEvent._getEvent());
6381		};
6382
6383		if (L.Browser.pointer && type.indexOf('touch') === 0) {
6384			return this.addPointerListener(obj, type, handler, id);
6385		}
6386		if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener) {
6387			this.addDoubleTapListener(obj, handler, id);
6388		}
6389
6390		if ('addEventListener' in obj) {
6391
6392			if (type === 'mousewheel') {
6393				obj.addEventListener('DOMMouseScroll', handler, false);
6394				obj.addEventListener(type, handler, false);
6395
6396			} else if ((type === 'mouseenter') || (type === 'mouseleave')) {
6397
6398				originalHandler = handler;
6399				newType = (type === 'mouseenter' ? 'mouseover' : 'mouseout');
6400
6401				handler = function (e) {
6402					if (!L.DomEvent._checkMouse(obj, e)) { return; }
6403					return originalHandler(e);
6404				};
6405
6406				obj.addEventListener(newType, handler, false);
6407
6408			} else if (type === 'click' && L.Browser.android) {
6409				originalHandler = handler;
6410				handler = function (e) {
6411					return L.DomEvent._filterClick(e, originalHandler);
6412				};
6413
6414				obj.addEventListener(type, handler, false);
6415			} else {
6416				obj.addEventListener(type, handler, false);
6417			}
6418
6419		} else if ('attachEvent' in obj) {
6420			obj.attachEvent('on' + type, handler);
6421		}
6422
6423		obj[key] = handler;
6424
6425		return this;
6426	},
6427
6428	removeListener: function (obj, type, fn) {  // (HTMLElement, String, Function)
6429
6430		var id = L.stamp(fn),
6431		    key = '_leaflet_' + type + id,
6432		    handler = obj[key];
6433
6434		if (!handler) { return this; }
6435
6436		if (L.Browser.pointer && type.indexOf('touch') === 0) {
6437			this.removePointerListener(obj, type, id);
6438		} else if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) {
6439			this.removeDoubleTapListener(obj, id);
6440
6441		} else if ('removeEventListener' in obj) {
6442
6443			if (type === 'mousewheel') {
6444				obj.removeEventListener('DOMMouseScroll', handler, false);
6445				obj.removeEventListener(type, handler, false);
6446
6447			} else if ((type === 'mouseenter') || (type === 'mouseleave')) {
6448				obj.removeEventListener((type === 'mouseenter' ? 'mouseover' : 'mouseout'), handler, false);
6449			} else {
6450				obj.removeEventListener(type, handler, false);
6451			}
6452		} else if ('detachEvent' in obj) {
6453			obj.detachEvent('on' + type, handler);
6454		}
6455
6456		obj[key] = null;
6457
6458		return this;
6459	},
6460
6461	stopPropagation: function (e) {
6462
6463		if (e.stopPropagation) {
6464			e.stopPropagation();
6465		} else {
6466			e.cancelBubble = true;
6467		}
6468		L.DomEvent._skipped(e);
6469
6470		return this;
6471	},
6472
6473	disableScrollPropagation: function (el) {
6474		var stop = L.DomEvent.stopPropagation;
6475
6476		return L.DomEvent
6477			.on(el, 'mousewheel', stop)
6478			.on(el, 'MozMousePixelScroll', stop);
6479	},
6480
6481	disableClickPropagation: function (el) {
6482		var stop = L.DomEvent.stopPropagation;
6483
6484		for (var i = L.Draggable.START.length - 1; i >= 0; i--) {
6485			L.DomEvent.on(el, L.Draggable.START[i], stop);
6486		}
6487
6488		return L.DomEvent
6489			.on(el, 'click', L.DomEvent._fakeStop)
6490			.on(el, 'dblclick', stop);
6491	},
6492
6493	preventDefault: function (e) {
6494
6495		if (e.preventDefault) {
6496			e.preventDefault();
6497		} else {
6498			e.returnValue = false;
6499		}
6500		return this;
6501	},
6502
6503	stop: function (e) {
6504		return L.DomEvent
6505			.preventDefault(e)
6506			.stopPropagation(e);
6507	},
6508
6509	getMousePosition: function (e, container) {
6510		if (!container) {
6511			return new L.Point(e.clientX, e.clientY);
6512		}
6513
6514		var rect = container.getBoundingClientRect();
6515
6516		return new L.Point(
6517			e.clientX - rect.left - container.clientLeft,
6518			e.clientY - rect.top - container.clientTop);
6519	},
6520
6521	getWheelDelta: function (e) {
6522
6523		var delta = 0;
6524
6525		if (e.wheelDelta) {
6526			delta = e.wheelDelta / 120;
6527		}
6528		if (e.detail) {
6529			delta = -e.detail / 3;
6530		}
6531		return delta;
6532	},
6533
6534	_skipEvents: {},
6535
6536	_fakeStop: function (e) {
6537		// fakes stopPropagation by setting a special event flag, checked/reset with L.DomEvent._skipped(e)
6538		L.DomEvent._skipEvents[e.type] = true;
6539	},
6540
6541	_skipped: function (e) {
6542		var skipped = this._skipEvents[e.type];
6543		// reset when checking, as it's only used in map container and propagates outside of the map
6544		this._skipEvents[e.type] = false;
6545		return skipped;
6546	},
6547
6548	// check if element really left/entered the event target (for mouseenter/mouseleave)
6549	_checkMouse: function (el, e) {
6550
6551		var related = e.relatedTarget;
6552
6553		if (!related) { return true; }
6554
6555		try {
6556			while (related && (related !== el)) {
6557				related = related.parentNode;
6558			}
6559		} catch (err) {
6560			return false;
6561		}
6562		return (related !== el);
6563	},
6564
6565	_getEvent: function () { // evil magic for IE
6566		/*jshint noarg:false */
6567		var e = window.event;
6568		if (!e) {
6569			var caller = arguments.callee.caller;
6570			while (caller) {
6571				e = caller['arguments'][0];
6572				if (e && window.Event === e.constructor) {
6573					break;
6574				}
6575				caller = caller.caller;
6576			}
6577		}
6578		return e;
6579	},
6580
6581	// this is a horrible workaround for a bug in Android where a single touch triggers two click events
6582	_filterClick: function (e, handler) {
6583		var timeStamp = (e.timeStamp || e.originalEvent.timeStamp),
6584			elapsed = L.DomEvent._lastClick && (timeStamp - L.DomEvent._lastClick);
6585
6586		// are they closer together than 500ms yet more than 100ms?
6587		// Android typically triggers them ~300ms apart while multiple listeners
6588		// on the same event should be triggered far faster;
6589		// or check if click is simulated on the element, and if it is, reject any non-simulated events
6590
6591		if ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) {
6592			L.DomEvent.stop(e);
6593			return;
6594		}
6595		L.DomEvent._lastClick = timeStamp;
6596
6597		return handler(e);
6598	}
6599};
6600
6601L.DomEvent.on = L.DomEvent.addListener;
6602L.DomEvent.off = L.DomEvent.removeListener;
6603
6604
6605/*
6606 * L.Draggable allows you to add dragging capabilities to any element. Supports mobile devices too.
6607 */
6608
6609L.Draggable = L.Class.extend({
6610	includes: L.Mixin.Events,
6611
6612	statics: {
6613		START: L.Browser.touch ? ['touchstart', 'mousedown'] : ['mousedown'],
6614		END: {
6615			mousedown: 'mouseup',
6616			touchstart: 'touchend',
6617			pointerdown: 'touchend',
6618			MSPointerDown: 'touchend'
6619		},
6620		MOVE: {
6621			mousedown: 'mousemove',
6622			touchstart: 'touchmove',
6623			pointerdown: 'touchmove',
6624			MSPointerDown: 'touchmove'
6625		}
6626	},
6627
6628	initialize: function (element, dragStartTarget) {
6629		this._element = element;
6630		this._dragStartTarget = dragStartTarget || element;
6631	},
6632
6633	enable: function () {
6634		if (this._enabled) { return; }
6635
6636		for (var i = L.Draggable.START.length - 1; i >= 0; i--) {
6637			L.DomEvent.on(this._dragStartTarget, L.Draggable.START[i], this._onDown, this);
6638		}
6639
6640		this._enabled = true;
6641	},
6642
6643	disable: function () {
6644		if (!this._enabled) { return; }
6645
6646		for (var i = L.Draggable.START.length - 1; i >= 0; i--) {
6647			L.DomEvent.off(this._dragStartTarget, L.Draggable.START[i], this._onDown, this);
6648		}
6649
6650		this._enabled = false;
6651		this._moved = false;
6652	},
6653
6654	_onDown: function (e) {
6655		this._moved = false;
6656
6657		if (e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; }
6658
6659		L.DomEvent.stopPropagation(e);
6660
6661		if (L.Draggable._disabled) { return; }
6662
6663		L.DomUtil.disableImageDrag();
6664		L.DomUtil.disableTextSelection();
6665
6666		if (this._moving) { return; }
6667
6668		var first = e.touches ? e.touches[0] : e;
6669
6670		this._startPoint = new L.Point(first.clientX, first.clientY);
6671		this._startPos = this._newPos = L.DomUtil.getPosition(this._element);
6672
6673		L.DomEvent
6674		    .on(document, L.Draggable.MOVE[e.type], this._onMove, this)
6675		    .on(document, L.Draggable.END[e.type], this._onUp, this);
6676	},
6677
6678	_onMove: function (e) {
6679		if (e.touches && e.touches.length > 1) {
6680			this._moved = true;
6681			return;
6682		}
6683
6684		var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e),
6685		    newPoint = new L.Point(first.clientX, first.clientY),
6686		    offset = newPoint.subtract(this._startPoint);
6687
6688		if (!offset.x && !offset.y) { return; }
6689		if (L.Browser.touch && Math.abs(offset.x) + Math.abs(offset.y) < 3) { return; }
6690
6691		L.DomEvent.preventDefault(e);
6692
6693		if (!this._moved) {
6694			this.fire('dragstart');
6695
6696			this._moved = true;
6697			this._startPos = L.DomUtil.getPosition(this._element).subtract(offset);
6698
6699			L.DomUtil.addClass(document.body, 'leaflet-dragging');
6700			this._lastTarget = e.target || e.srcElement;
6701			L.DomUtil.addClass(this._lastTarget, 'leaflet-drag-target');
6702		}
6703
6704		this._newPos = this._startPos.add(offset);
6705		this._moving = true;
6706
6707		L.Util.cancelAnimFrame(this._animRequest);
6708		this._animRequest = L.Util.requestAnimFrame(this._updatePosition, this, true, this._dragStartTarget);
6709	},
6710
6711	_updatePosition: function () {
6712		this.fire('predrag');
6713		L.DomUtil.setPosition(this._element, this._newPos);
6714		this.fire('drag');
6715	},
6716
6717	_onUp: function () {
6718		L.DomUtil.removeClass(document.body, 'leaflet-dragging');
6719
6720		if (this._lastTarget) {
6721			L.DomUtil.removeClass(this._lastTarget, 'leaflet-drag-target');
6722			this._lastTarget = null;
6723		}
6724
6725		for (var i in L.Draggable.MOVE) {
6726			L.DomEvent
6727			    .off(document, L.Draggable.MOVE[i], this._onMove)
6728			    .off(document, L.Draggable.END[i], this._onUp);
6729		}
6730
6731		L.DomUtil.enableImageDrag();
6732		L.DomUtil.enableTextSelection();
6733
6734		if (this._moved && this._moving) {
6735			// ensure drag is not fired after dragend
6736			L.Util.cancelAnimFrame(this._animRequest);
6737
6738			this.fire('dragend', {
6739				distance: this._newPos.distanceTo(this._startPos)
6740			});
6741		}
6742
6743		this._moving = false;
6744	}
6745});
6746
6747
6748/*
6749	L.Handler is a base class for handler classes that are used internally to inject
6750	interaction features like dragging to classes like Map and Marker.
6751*/
6752
6753L.Handler = L.Class.extend({
6754	initialize: function (map) {
6755		this._map = map;
6756	},
6757
6758	enable: function () {
6759		if (this._enabled) { return; }
6760
6761		this._enabled = true;
6762		this.addHooks();
6763	},
6764
6765	disable: function () {
6766		if (!this._enabled) { return; }
6767
6768		this._enabled = false;
6769		this.removeHooks();
6770	},
6771
6772	enabled: function () {
6773		return !!this._enabled;
6774	}
6775});
6776
6777
6778/*
6779 * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default.
6780 */
6781
6782L.Map.mergeOptions({
6783	dragging: true,
6784
6785	inertia: !L.Browser.android23,
6786	inertiaDeceleration: 3400, // px/s^2
6787	inertiaMaxSpeed: Infinity, // px/s
6788	inertiaThreshold: L.Browser.touch ? 32 : 18, // ms
6789	easeLinearity: 0.25,
6790
6791	// TODO refactor, move to CRS
6792	worldCopyJump: false
6793});
6794
6795L.Map.Drag = L.Handler.extend({
6796	addHooks: function () {
6797		if (!this._draggable) {
6798			var map = this._map;
6799
6800			this._draggable = new L.Draggable(map._mapPane, map._container);
6801
6802			this._draggable.on({
6803				'dragstart': this._onDragStart,
6804				'drag': this._onDrag,
6805				'dragend': this._onDragEnd
6806			}, this);
6807
6808			if (map.options.worldCopyJump) {
6809				this._draggable.on('predrag', this._onPreDrag, this);
6810				map.on('viewreset', this._onViewReset, this);
6811
6812				map.whenReady(this._onViewReset, this);
6813			}
6814		}
6815		this._draggable.enable();
6816	},
6817
6818	removeHooks: function () {
6819		this._draggable.disable();
6820	},
6821
6822	moved: function () {
6823		return this._draggable && this._draggable._moved;
6824	},
6825
6826	_onDragStart: function () {
6827		var map = this._map;
6828
6829		if (map._panAnim) {
6830			map._panAnim.stop();
6831		}
6832
6833		map
6834		    .fire('movestart')
6835		    .fire('dragstart');
6836
6837		if (map.options.inertia) {
6838			this._positions = [];
6839			this._times = [];
6840		}
6841	},
6842
6843	_onDrag: function () {
6844		if (this._map.options.inertia) {
6845			var time = this._lastTime = +new Date(),
6846			    pos = this._lastPos = this._draggable._newPos;
6847
6848			this._positions.push(pos);
6849			this._times.push(time);
6850
6851			if (time - this._times[0] > 200) {
6852				this._positions.shift();
6853				this._times.shift();
6854			}
6855		}
6856
6857		this._map
6858		    .fire('move')
6859		    .fire('drag');
6860	},
6861
6862	_onViewReset: function () {
6863		// TODO fix hardcoded Earth values
6864		var pxCenter = this._map.getSize()._divideBy(2),
6865		    pxWorldCenter = this._map.latLngToLayerPoint([0, 0]);
6866
6867		this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;
6868		this._worldWidth = this._map.project([0, 180]).x;
6869	},
6870
6871	_onPreDrag: function () {
6872		// TODO refactor to be able to adjust map pane position after zoom
6873		var worldWidth = this._worldWidth,
6874		    halfWidth = Math.round(worldWidth / 2),
6875		    dx = this._initialWorldOffset,
6876		    x = this._draggable._newPos.x,
6877		    newX1 = (x - halfWidth + dx) % worldWidth + halfWidth - dx,
6878		    newX2 = (x + halfWidth + dx) % worldWidth - halfWidth - dx,
6879		    newX = Math.abs(newX1 + dx) < Math.abs(newX2 + dx) ? newX1 : newX2;
6880
6881		this._draggable._newPos.x = newX;
6882	},
6883
6884	_onDragEnd: function (e) {
6885		var map = this._map,
6886		    options = map.options,
6887		    delay = +new Date() - this._lastTime,
6888
6889		    noInertia = !options.inertia || delay > options.inertiaThreshold || !this._positions[0];
6890
6891		map.fire('dragend', e);
6892
6893		if (noInertia) {
6894			map.fire('moveend');
6895
6896		} else {
6897
6898			var direction = this._lastPos.subtract(this._positions[0]),
6899			    duration = (this._lastTime + delay - this._times[0]) / 1000,
6900			    ease = options.easeLinearity,
6901
6902			    speedVector = direction.multiplyBy(ease / duration),
6903			    speed = speedVector.distanceTo([0, 0]),
6904
6905			    limitedSpeed = Math.min(options.inertiaMaxSpeed, speed),
6906			    limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed),
6907
6908			    decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease),
6909			    offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round();
6910
6911			if (!offset.x || !offset.y) {
6912				map.fire('moveend');
6913
6914			} else {
6915				offset = map._limitOffset(offset, map.options.maxBounds);
6916
6917				L.Util.requestAnimFrame(function () {
6918					map.panBy(offset, {
6919						duration: decelerationDuration,
6920						easeLinearity: ease,
6921						noMoveStart: true
6922					});
6923				});
6924			}
6925		}
6926	}
6927});
6928
6929L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag);
6930
6931
6932/*
6933 * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default.
6934 */
6935
6936L.Map.mergeOptions({
6937	doubleClickZoom: true
6938});
6939
6940L.Map.DoubleClickZoom = L.Handler.extend({
6941	addHooks: function () {
6942		this._map.on('dblclick', this._onDoubleClick, this);
6943	},
6944
6945	removeHooks: function () {
6946		this._map.off('dblclick', this._onDoubleClick, this);
6947	},
6948
6949	_onDoubleClick: function (e) {
6950		var map = this._map,
6951		    zoom = map.getZoom() + (e.originalEvent.shiftKey ? -1 : 1);
6952
6953		if (map.options.doubleClickZoom === 'center') {
6954			map.setZoom(zoom);
6955		} else {
6956			map.setZoomAround(e.containerPoint, zoom);
6957		}
6958	}
6959});
6960
6961L.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom);
6962
6963
6964/*
6965 * L.Handler.ScrollWheelZoom is used by L.Map to enable mouse scroll wheel zoom on the map.
6966 */
6967
6968L.Map.mergeOptions({
6969	scrollWheelZoom: true
6970});
6971
6972L.Map.ScrollWheelZoom = L.Handler.extend({
6973	addHooks: function () {
6974		L.DomEvent.on(this._map._container, 'mousewheel', this._onWheelScroll, this);
6975		L.DomEvent.on(this._map._container, 'MozMousePixelScroll', L.DomEvent.preventDefault);
6976		this._delta = 0;
6977	},
6978
6979	removeHooks: function () {
6980		L.DomEvent.off(this._map._container, 'mousewheel', this._onWheelScroll);
6981		L.DomEvent.off(this._map._container, 'MozMousePixelScroll', L.DomEvent.preventDefault);
6982	},
6983
6984	_onWheelScroll: function (e) {
6985		var delta = L.DomEvent.getWheelDelta(e);
6986
6987		this._delta += delta;
6988		this._lastMousePos = this._map.mouseEventToContainerPoint(e);
6989
6990		if (!this._startTime) {
6991			this._startTime = +new Date();
6992		}
6993
6994		var left = Math.max(40 - (+new Date() - this._startTime), 0);
6995
6996		clearTimeout(this._timer);
6997		this._timer = setTimeout(L.bind(this._performZoom, this), left);
6998
6999		L.DomEvent.preventDefault(e);
7000		L.DomEvent.stopPropagation(e);
7001	},
7002
7003	_performZoom: function () {
7004		var map = this._map,
7005		    delta = this._delta,
7006		    zoom = map.getZoom();
7007
7008		delta = delta > 0 ? Math.ceil(delta) : Math.floor(delta);
7009		delta = Math.max(Math.min(delta, 4), -4);
7010		delta = map._limitZoom(zoom + delta) - zoom;
7011
7012		this._delta = 0;
7013		this._startTime = null;
7014
7015		if (!delta) { return; }
7016
7017		if (map.options.scrollWheelZoom === 'center') {
7018			map.setZoom(zoom + delta);
7019		} else {
7020			map.setZoomAround(this._lastMousePos, zoom + delta);
7021		}
7022	}
7023});
7024
7025L.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom);
7026
7027
7028/*
7029 * Extends the event handling code with double tap support for mobile browsers.
7030 */
7031
7032L.extend(L.DomEvent, {
7033
7034	_touchstart: L.Browser.msPointer ? 'MSPointerDown' : L.Browser.pointer ? 'pointerdown' : 'touchstart',
7035	_touchend: L.Browser.msPointer ? 'MSPointerUp' : L.Browser.pointer ? 'pointerup' : 'touchend',
7036
7037	// inspired by Zepto touch code by Thomas Fuchs
7038	addDoubleTapListener: function (obj, handler, id) {
7039		var last,
7040		    doubleTap = false,
7041		    delay = 250,
7042		    touch,
7043		    pre = '_leaflet_',
7044		    touchstart = this._touchstart,
7045		    touchend = this._touchend,
7046		    trackedTouches = [];
7047
7048		function onTouchStart(e) {
7049			var count;
7050
7051			if (L.Browser.pointer) {
7052				trackedTouches.push(e.pointerId);
7053				count = trackedTouches.length;
7054			} else {
7055				count = e.touches.length;
7056			}
7057			if (count > 1) {
7058				return;
7059			}
7060
7061			var now = Date.now(),
7062				delta = now - (last || now);
7063
7064			touch = e.touches ? e.touches[0] : e;
7065			doubleTap = (delta > 0 && delta <= delay);
7066			last = now;
7067		}
7068
7069		function onTouchEnd(e) {
7070			if (L.Browser.pointer) {
7071				var idx = trackedTouches.indexOf(e.pointerId);
7072				if (idx === -1) {
7073					return;
7074				}
7075				trackedTouches.splice(idx, 1);
7076			}
7077
7078			if (doubleTap) {
7079				if (L.Browser.pointer) {
7080					// work around .type being readonly with MSPointer* events
7081					var newTouch = { },
7082						prop;
7083
7084					// jshint forin:false
7085					for (var i in touch) {
7086						prop = touch[i];
7087						if (typeof prop === 'function') {
7088							newTouch[i] = prop.bind(touch);
7089						} else {
7090							newTouch[i] = prop;
7091						}
7092					}
7093					touch = newTouch;
7094				}
7095				touch.type = 'dblclick';
7096				handler(touch);
7097				last = null;
7098			}
7099		}
7100		obj[pre + touchstart + id] = onTouchStart;
7101		obj[pre + touchend + id] = onTouchEnd;
7102
7103		// on pointer we need to listen on the document, otherwise a drag starting on the map and moving off screen
7104		// will not come through to us, so we will lose track of how many touches are ongoing
7105		var endElement = L.Browser.pointer ? document.documentElement : obj;
7106
7107		obj.addEventListener(touchstart, onTouchStart, false);
7108		endElement.addEventListener(touchend, onTouchEnd, false);
7109
7110		if (L.Browser.pointer) {
7111			endElement.addEventListener(L.DomEvent.POINTER_CANCEL, onTouchEnd, false);
7112		}
7113
7114		return this;
7115	},
7116
7117	removeDoubleTapListener: function (obj, id) {
7118		var pre = '_leaflet_';
7119
7120		obj.removeEventListener(this._touchstart, obj[pre + this._touchstart + id], false);
7121		(L.Browser.pointer ? document.documentElement : obj).removeEventListener(
7122		        this._touchend, obj[pre + this._touchend + id], false);
7123
7124		if (L.Browser.pointer) {
7125			document.documentElement.removeEventListener(L.DomEvent.POINTER_CANCEL, obj[pre + this._touchend + id],
7126				false);
7127		}
7128
7129		return this;
7130	}
7131});
7132
7133
7134/*
7135 * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices.
7136 */
7137
7138L.extend(L.DomEvent, {
7139
7140	//static
7141	POINTER_DOWN: L.Browser.msPointer ? 'MSPointerDown' : 'pointerdown',
7142	POINTER_MOVE: L.Browser.msPointer ? 'MSPointerMove' : 'pointermove',
7143	POINTER_UP: L.Browser.msPointer ? 'MSPointerUp' : 'pointerup',
7144	POINTER_CANCEL: L.Browser.msPointer ? 'MSPointerCancel' : 'pointercancel',
7145
7146	_pointers: [],
7147	_pointerDocumentListener: false,
7148
7149	// Provides a touch events wrapper for (ms)pointer events.
7150	// Based on changes by veproza https://github.com/CloudMade/Leaflet/pull/1019
7151	//ref http://www.w3.org/TR/pointerevents/ https://www.w3.org/Bugs/Public/show_bug.cgi?id=22890
7152
7153	addPointerListener: function (obj, type, handler, id) {
7154
7155		switch (type) {
7156		case 'touchstart':
7157			return this.addPointerListenerStart(obj, type, handler, id);
7158		case 'touchend':
7159			return this.addPointerListenerEnd(obj, type, handler, id);
7160		case 'touchmove':
7161			return this.addPointerListenerMove(obj, type, handler, id);
7162		default:
7163			throw 'Unknown touch event type';
7164		}
7165	},
7166
7167	addPointerListenerStart: function (obj, type, handler, id) {
7168		var pre = '_leaflet_',
7169		    pointers = this._pointers;
7170
7171		var cb = function (e) {
7172			if (e.pointerType !== 'mouse' && e.pointerType !== e.MSPOINTER_TYPE_MOUSE) {
7173				L.DomEvent.preventDefault(e);
7174			}
7175
7176			var alreadyInArray = false;
7177			for (var i = 0; i < pointers.length; i++) {
7178				if (pointers[i].pointerId === e.pointerId) {
7179					alreadyInArray = true;
7180					break;
7181				}
7182			}
7183			if (!alreadyInArray) {
7184				pointers.push(e);
7185			}
7186
7187			e.touches = pointers.slice();
7188			e.changedTouches = [e];
7189
7190			handler(e);
7191		};
7192
7193		obj[pre + 'touchstart' + id] = cb;
7194		obj.addEventListener(this.POINTER_DOWN, cb, false);
7195
7196		// need to also listen for end events to keep the _pointers list accurate
7197		// this needs to be on the body and never go away
7198		if (!this._pointerDocumentListener) {
7199			var internalCb = function (e) {
7200				for (var i = 0; i < pointers.length; i++) {
7201					if (pointers[i].pointerId === e.pointerId) {
7202						pointers.splice(i, 1);
7203						break;
7204					}
7205				}
7206			};
7207			//We listen on the documentElement as any drags that end by moving the touch off the screen get fired there
7208			document.documentElement.addEventListener(this.POINTER_UP, internalCb, false);
7209			document.documentElement.addEventListener(this.POINTER_CANCEL, internalCb, false);
7210
7211			this._pointerDocumentListener = true;
7212		}
7213
7214		return this;
7215	},
7216
7217	addPointerListenerMove: function (obj, type, handler, id) {
7218		var pre = '_leaflet_',
7219		    touches = this._pointers;
7220
7221		function cb(e) {
7222
7223			// don't fire touch moves when mouse isn't down
7224			if ((e.pointerType === e.MSPOINTER_TYPE_MOUSE || e.pointerType === 'mouse') && e.buttons === 0) { return; }
7225
7226			for (var i = 0; i < touches.length; i++) {
7227				if (touches[i].pointerId === e.pointerId) {
7228					touches[i] = e;
7229					break;
7230				}
7231			}
7232
7233			e.touches = touches.slice();
7234			e.changedTouches = [e];
7235
7236			handler(e);
7237		}
7238
7239		obj[pre + 'touchmove' + id] = cb;
7240		obj.addEventListener(this.POINTER_MOVE, cb, false);
7241
7242		return this;
7243	},
7244
7245	addPointerListenerEnd: function (obj, type, handler, id) {
7246		var pre = '_leaflet_',
7247		    touches = this._pointers;
7248
7249		var cb = function (e) {
7250			for (var i = 0; i < touches.length; i++) {
7251				if (touches[i].pointerId === e.pointerId) {
7252					touches.splice(i, 1);
7253					break;
7254				}
7255			}
7256
7257			e.touches = touches.slice();
7258			e.changedTouches = [e];
7259
7260			handler(e);
7261		};
7262
7263		obj[pre + 'touchend' + id] = cb;
7264		obj.addEventListener(this.POINTER_UP, cb, false);
7265		obj.addEventListener(this.POINTER_CANCEL, cb, false);
7266
7267		return this;
7268	},
7269
7270	removePointerListener: function (obj, type, id) {
7271		var pre = '_leaflet_',
7272		    cb = obj[pre + type + id];
7273
7274		switch (type) {
7275		case 'touchstart':
7276			obj.removeEventListener(this.POINTER_DOWN, cb, false);
7277			break;
7278		case 'touchmove':
7279			obj.removeEventListener(this.POINTER_MOVE, cb, false);
7280			break;
7281		case 'touchend':
7282			obj.removeEventListener(this.POINTER_UP, cb, false);
7283			obj.removeEventListener(this.POINTER_CANCEL, cb, false);
7284			break;
7285		}
7286
7287		return this;
7288	}
7289});
7290
7291
7292/*
7293 * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers.
7294 */
7295
7296L.Map.mergeOptions({
7297	touchZoom: L.Browser.touch && !L.Browser.android23,
7298	bounceAtZoomLimits: true
7299});
7300
7301L.Map.TouchZoom = L.Handler.extend({
7302	addHooks: function () {
7303		L.DomEvent.on(this._map._container, 'touchstart', this._onTouchStart, this);
7304	},
7305
7306	removeHooks: function () {
7307		L.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this);
7308	},
7309
7310	_onTouchStart: function (e) {
7311		var map = this._map;
7312
7313		if (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; }
7314
7315		var p1 = map.mouseEventToLayerPoint(e.touches[0]),
7316		    p2 = map.mouseEventToLayerPoint(e.touches[1]),
7317		    viewCenter = map._getCenterLayerPoint();
7318
7319		this._startCenter = p1.add(p2)._divideBy(2);
7320		this._startDist = p1.distanceTo(p2);
7321
7322		this._moved = false;
7323		this._zooming = true;
7324
7325		this._centerOffset = viewCenter.subtract(this._startCenter);
7326
7327		if (map._panAnim) {
7328			map._panAnim.stop();
7329		}
7330
7331		L.DomEvent
7332		    .on(document, 'touchmove', this._onTouchMove, this)
7333		    .on(document, 'touchend', this._onTouchEnd, this);
7334
7335		L.DomEvent.preventDefault(e);
7336	},
7337
7338	_onTouchMove: function (e) {
7339		var map = this._map;
7340
7341		if (!e.touches || e.touches.length !== 2 || !this._zooming) { return; }
7342
7343		var p1 = map.mouseEventToLayerPoint(e.touches[0]),
7344		    p2 = map.mouseEventToLayerPoint(e.touches[1]);
7345
7346		this._scale = p1.distanceTo(p2) / this._startDist;
7347		this._delta = p1._add(p2)._divideBy(2)._subtract(this._startCenter);
7348
7349		if (this._scale === 1) { return; }
7350
7351		if (!map.options.bounceAtZoomLimits) {
7352			if ((map.getZoom() === map.getMinZoom() && this._scale < 1) ||
7353			    (map.getZoom() === map.getMaxZoom() && this._scale > 1)) { return; }
7354		}
7355
7356		if (!this._moved) {
7357			L.DomUtil.addClass(map._mapPane, 'leaflet-touching');
7358
7359			map
7360			    .fire('movestart')
7361			    .fire('zoomstart');
7362
7363			this._moved = true;
7364		}
7365
7366		L.Util.cancelAnimFrame(this._animRequest);
7367		this._animRequest = L.Util.requestAnimFrame(
7368		        this._updateOnMove, this, true, this._map._container);
7369
7370		L.DomEvent.preventDefault(e);
7371	},
7372
7373	_updateOnMove: function () {
7374		var map = this._map,
7375		    origin = this._getScaleOrigin(),
7376		    center = map.layerPointToLatLng(origin),
7377		    zoom = map.getScaleZoom(this._scale);
7378
7379		map._animateZoom(center, zoom, this._startCenter, this._scale, this._delta, false, true);
7380	},
7381
7382	_onTouchEnd: function () {
7383		if (!this._moved || !this._zooming) {
7384			this._zooming = false;
7385			return;
7386		}
7387
7388		var map = this._map;
7389
7390		this._zooming = false;
7391		L.DomUtil.removeClass(map._mapPane, 'leaflet-touching');
7392		L.Util.cancelAnimFrame(this._animRequest);
7393
7394		L.DomEvent
7395		    .off(document, 'touchmove', this._onTouchMove)
7396		    .off(document, 'touchend', this._onTouchEnd);
7397
7398		var origin = this._getScaleOrigin(),
7399		    center = map.layerPointToLatLng(origin),
7400
7401		    oldZoom = map.getZoom(),
7402		    floatZoomDelta = map.getScaleZoom(this._scale) - oldZoom,
7403		    roundZoomDelta = (floatZoomDelta > 0 ?
7404		            Math.ceil(floatZoomDelta) : Math.floor(floatZoomDelta)),
7405
7406		    zoom = map._limitZoom(oldZoom + roundZoomDelta),
7407		    scale = map.getZoomScale(zoom) / this._scale;
7408
7409		map._animateZoom(center, zoom, origin, scale);
7410	},
7411
7412	_getScaleOrigin: function () {
7413		var centerOffset = this._centerOffset.subtract(this._delta).divideBy(this._scale);
7414		return this._startCenter.add(centerOffset);
7415	}
7416});
7417
7418L.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom);
7419
7420
7421/*
7422 * L.Map.Tap is used to enable mobile hacks like quick taps and long hold.
7423 */
7424
7425L.Map.mergeOptions({
7426	tap: true,
7427	tapTolerance: 15
7428});
7429
7430L.Map.Tap = L.Handler.extend({
7431	addHooks: function () {
7432		L.DomEvent.on(this._map._container, 'touchstart', this._onDown, this);
7433	},
7434
7435	removeHooks: function () {
7436		L.DomEvent.off(this._map._container, 'touchstart', this._onDown, this);
7437	},
7438
7439	_onDown: function (e) {
7440		if (!e.touches) { return; }
7441
7442		L.DomEvent.preventDefault(e);
7443
7444		this._fireClick = true;
7445
7446		// don't simulate click or track longpress if more than 1 touch
7447		if (e.touches.length > 1) {
7448			this._fireClick = false;
7449			clearTimeout(this._holdTimeout);
7450			return;
7451		}
7452
7453		var first = e.touches[0],
7454		    el = first.target;
7455
7456		this._startPos = this._newPos = new L.Point(first.clientX, first.clientY);
7457
7458		// if touching a link, highlight it
7459		if (el.tagName && el.tagName.toLowerCase() === 'a') {
7460			L.DomUtil.addClass(el, 'leaflet-active');
7461		}
7462
7463		// simulate long hold but setting a timeout
7464		this._holdTimeout = setTimeout(L.bind(function () {
7465			if (this._isTapValid()) {
7466				this._fireClick = false;
7467				this._onUp();
7468				this._simulateEvent('contextmenu', first);
7469			}
7470		}, this), 1000);
7471
7472		L.DomEvent
7473			.on(document, 'touchmove', this._onMove, this)
7474			.on(document, 'touchend', this._onUp, this);
7475	},
7476
7477	_onUp: function (e) {
7478		clearTimeout(this._holdTimeout);
7479
7480		L.DomEvent
7481			.off(document, 'touchmove', this._onMove, this)
7482			.off(document, 'touchend', this._onUp, this);
7483
7484		if (this._fireClick && e && e.changedTouches) {
7485
7486			var first = e.changedTouches[0],
7487			    el = first.target;
7488
7489			if (el && el.tagName && el.tagName.toLowerCase() === 'a') {
7490				L.DomUtil.removeClass(el, 'leaflet-active');
7491			}
7492
7493			// simulate click if the touch didn't move too much
7494			if (this._isTapValid()) {
7495				this._simulateEvent('click', first);
7496			}
7497		}
7498	},
7499
7500	_isTapValid: function () {
7501		return this._newPos.distanceTo(this._startPos) <= this._map.options.tapTolerance;
7502	},
7503
7504	_onMove: function (e) {
7505		var first = e.touches[0];
7506		this._newPos = new L.Point(first.clientX, first.clientY);
7507	},
7508
7509	_simulateEvent: function (type, e) {
7510		var simulatedEvent = document.createEvent('MouseEvents');
7511
7512		simulatedEvent._simulated = true;
7513		e.target._simulatedClick = true;
7514
7515		simulatedEvent.initMouseEvent(
7516		        type, true, true, window, 1,
7517		        e.screenX, e.screenY,
7518		        e.clientX, e.clientY,
7519		        false, false, false, false, 0, null);
7520
7521		e.target.dispatchEvent(simulatedEvent);
7522	}
7523});
7524
7525if (L.Browser.touch && !L.Browser.pointer) {
7526	L.Map.addInitHook('addHandler', 'tap', L.Map.Tap);
7527}
7528
7529
7530/*
7531 * L.Handler.ShiftDragZoom is used to add shift-drag zoom interaction to the map
7532  * (zoom to a selected bounding box), enabled by default.
7533 */
7534
7535L.Map.mergeOptions({
7536	boxZoom: true
7537});
7538
7539L.Map.BoxZoom = L.Handler.extend({
7540	initialize: function (map) {
7541		this._map = map;
7542		this._container = map._container;
7543		this._pane = map._panes.overlayPane;
7544		this._moved = false;
7545	},
7546
7547	addHooks: function () {
7548		L.DomEvent.on(this._container, 'mousedown', this._onMouseDown, this);
7549	},
7550
7551	removeHooks: function () {
7552		L.DomEvent.off(this._container, 'mousedown', this._onMouseDown);
7553		this._moved = false;
7554	},
7555
7556	moved: function () {
7557		return this._moved;
7558	},
7559
7560	_onMouseDown: function (e) {
7561		this._moved = false;
7562
7563		if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; }
7564
7565		L.DomUtil.disableTextSelection();
7566		L.DomUtil.disableImageDrag();
7567
7568		this._startLayerPoint = this._map.mouseEventToLayerPoint(e);
7569
7570		L.DomEvent
7571		    .on(document, 'mousemove', this._onMouseMove, this)
7572		    .on(document, 'mouseup', this._onMouseUp, this)
7573		    .on(document, 'keydown', this._onKeyDown, this);
7574	},
7575
7576	_onMouseMove: function (e) {
7577		if (!this._moved) {
7578			this._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._pane);
7579			L.DomUtil.setPosition(this._box, this._startLayerPoint);
7580
7581			//TODO refactor: move cursor to styles
7582			this._container.style.cursor = 'crosshair';
7583			this._map.fire('boxzoomstart');
7584		}
7585
7586		var startPoint = this._startLayerPoint,
7587		    box = this._box,
7588
7589		    layerPoint = this._map.mouseEventToLayerPoint(e),
7590		    offset = layerPoint.subtract(startPoint),
7591
7592		    newPos = new L.Point(
7593		        Math.min(layerPoint.x, startPoint.x),
7594		        Math.min(layerPoint.y, startPoint.y));
7595
7596		L.DomUtil.setPosition(box, newPos);
7597
7598		this._moved = true;
7599
7600		// TODO refactor: remove hardcoded 4 pixels
7601		box.style.width  = (Math.max(0, Math.abs(offset.x) - 4)) + 'px';
7602		box.style.height = (Math.max(0, Math.abs(offset.y) - 4)) + 'px';
7603	},
7604
7605	_finish: function () {
7606		if (this._moved) {
7607			this._pane.removeChild(this._box);
7608			this._container.style.cursor = '';
7609		}
7610
7611		L.DomUtil.enableTextSelection();
7612		L.DomUtil.enableImageDrag();
7613
7614		L.DomEvent
7615		    .off(document, 'mousemove', this._onMouseMove)
7616		    .off(document, 'mouseup', this._onMouseUp)
7617		    .off(document, 'keydown', this._onKeyDown);
7618	},
7619
7620	_onMouseUp: function (e) {
7621
7622		this._finish();
7623
7624		var map = this._map,
7625		    layerPoint = map.mouseEventToLayerPoint(e);
7626
7627		if (this._startLayerPoint.equals(layerPoint)) { return; }
7628
7629		var bounds = new L.LatLngBounds(
7630		        map.layerPointToLatLng(this._startLayerPoint),
7631		        map.layerPointToLatLng(layerPoint));
7632
7633		map.fitBounds(bounds);
7634
7635		map.fire('boxzoomend', {
7636			boxZoomBounds: bounds
7637		});
7638	},
7639
7640	_onKeyDown: function (e) {
7641		if (e.keyCode === 27) {
7642			this._finish();
7643		}
7644	}
7645});
7646
7647L.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom);
7648
7649
7650/*
7651 * L.Map.Keyboard is handling keyboard interaction with the map, enabled by default.
7652 */
7653
7654L.Map.mergeOptions({
7655	keyboard: true,
7656	keyboardPanOffset: 80,
7657	keyboardZoomOffset: 1
7658});
7659
7660L.Map.Keyboard = L.Handler.extend({
7661
7662	keyCodes: {
7663		left:    [37],
7664		right:   [39],
7665		down:    [40],
7666		up:      [38],
7667		zoomIn:  [187, 107, 61, 171],
7668		zoomOut: [189, 109, 173]
7669	},
7670
7671	initialize: function (map) {
7672		this._map = map;
7673
7674		this._setPanOffset(map.options.keyboardPanOffset);
7675		this._setZoomOffset(map.options.keyboardZoomOffset);
7676	},
7677
7678	addHooks: function () {
7679		var container = this._map._container;
7680
7681		// make the container focusable by tabbing
7682		if (container.tabIndex === -1) {
7683			container.tabIndex = '0';
7684		}
7685
7686		L.DomEvent
7687		    .on(container, 'focus', this._onFocus, this)
7688		    .on(container, 'blur', this._onBlur, this)
7689		    .on(container, 'mousedown', this._onMouseDown, this);
7690
7691		this._map
7692		    .on('focus', this._addHooks, this)
7693		    .on('blur', this._removeHooks, this);
7694	},
7695
7696	removeHooks: function () {
7697		this._removeHooks();
7698
7699		var container = this._map._container;
7700
7701		L.DomEvent
7702		    .off(container, 'focus', this._onFocus, this)
7703		    .off(container, 'blur', this._onBlur, this)
7704		    .off(container, 'mousedown', this._onMouseDown, this);
7705
7706		this._map
7707		    .off('focus', this._addHooks, this)
7708		    .off('blur', this._removeHooks, this);
7709	},
7710
7711	_onMouseDown: function () {
7712		if (this._focused) { return; }
7713
7714		var body = document.body,
7715		    docEl = document.documentElement,
7716		    top = body.scrollTop || docEl.scrollTop,
7717		    left = body.scrollLeft || docEl.scrollLeft;
7718
7719		this._map._container.focus();
7720
7721		window.scrollTo(left, top);
7722	},
7723
7724	_onFocus: function () {
7725		this._focused = true;
7726		this._map.fire('focus');
7727	},
7728
7729	_onBlur: function () {
7730		this._focused = false;
7731		this._map.fire('blur');
7732	},
7733
7734	_setPanOffset: function (pan) {
7735		var keys = this._panKeys = {},
7736		    codes = this.keyCodes,
7737		    i, len;
7738
7739		for (i = 0, len = codes.left.length; i < len; i++) {
7740			keys[codes.left[i]] = [-1 * pan, 0];
7741		}
7742		for (i = 0, len = codes.right.length; i < len; i++) {
7743			keys[codes.right[i]] = [pan, 0];
7744		}
7745		for (i = 0, len = codes.down.length; i < len; i++) {
7746			keys[codes.down[i]] = [0, pan];
7747		}
7748		for (i = 0, len = codes.up.length; i < len; i++) {
7749			keys[codes.up[i]] = [0, -1 * pan];
7750		}
7751	},
7752
7753	_setZoomOffset: function (zoom) {
7754		var keys = this._zoomKeys = {},
7755		    codes = this.keyCodes,
7756		    i, len;
7757
7758		for (i = 0, len = codes.zoomIn.length; i < len; i++) {
7759			keys[codes.zoomIn[i]] = zoom;
7760		}
7761		for (i = 0, len = codes.zoomOut.length; i < len; i++) {
7762			keys[codes.zoomOut[i]] = -zoom;
7763		}
7764	},
7765
7766	_addHooks: function () {
7767		L.DomEvent.on(document, 'keydown', this._onKeyDown, this);
7768	},
7769
7770	_removeHooks: function () {
7771		L.DomEvent.off(document, 'keydown', this._onKeyDown, this);
7772	},
7773
7774	_onKeyDown: function (e) {
7775		var key = e.keyCode,
7776		    map = this._map;
7777
7778		if (key in this._panKeys) {
7779
7780			if (map._panAnim && map._panAnim._inProgress) { return; }
7781
7782			map.panBy(this._panKeys[key]);
7783
7784			if (map.options.maxBounds) {
7785				map.panInsideBounds(map.options.maxBounds);
7786			}
7787
7788		} else if (key in this._zoomKeys) {
7789			map.setZoom(map.getZoom() + this._zoomKeys[key]);
7790
7791		} else {
7792			return;
7793		}
7794
7795		L.DomEvent.stop(e);
7796	}
7797});
7798
7799L.Map.addInitHook('addHandler', 'keyboard', L.Map.Keyboard);
7800
7801
7802/*
7803 * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable.
7804 */
7805
7806L.Handler.MarkerDrag = L.Handler.extend({
7807	initialize: function (marker) {
7808		this._marker = marker;
7809	},
7810
7811	addHooks: function () {
7812		var icon = this._marker._icon;
7813		if (!this._draggable) {
7814			this._draggable = new L.Draggable(icon, icon);
7815		}
7816
7817		this._draggable
7818			.on('dragstart', this._onDragStart, this)
7819			.on('drag', this._onDrag, this)
7820			.on('dragend', this._onDragEnd, this);
7821		this._draggable.enable();
7822		L.DomUtil.addClass(this._marker._icon, 'leaflet-marker-draggable');
7823	},
7824
7825	removeHooks: function () {
7826		this._draggable
7827			.off('dragstart', this._onDragStart, this)
7828			.off('drag', this._onDrag, this)
7829			.off('dragend', this._onDragEnd, this);
7830
7831		this._draggable.disable();
7832		L.DomUtil.removeClass(this._marker._icon, 'leaflet-marker-draggable');
7833	},
7834
7835	moved: function () {
7836		return this._draggable && this._draggable._moved;
7837	},
7838
7839	_onDragStart: function () {
7840		this._marker
7841		    .closePopup()
7842		    .fire('movestart')
7843		    .fire('dragstart');
7844	},
7845
7846	_onDrag: function () {
7847		var marker = this._marker,
7848		    shadow = marker._shadow,
7849		    iconPos = L.DomUtil.getPosition(marker._icon),
7850		    latlng = marker._map.layerPointToLatLng(iconPos);
7851
7852		// update shadow position
7853		if (shadow) {
7854			L.DomUtil.setPosition(shadow, iconPos);
7855		}
7856
7857		marker._latlng = latlng;
7858
7859		marker
7860		    .fire('move', {latlng: latlng})
7861		    .fire('drag');
7862	},
7863
7864	_onDragEnd: function (e) {
7865		this._marker
7866		    .fire('moveend')
7867		    .fire('dragend', e);
7868	}
7869});
7870
7871
7872/*
7873 * L.Control is a base class for implementing map controls. Handles positioning.
7874 * All other controls extend from this class.
7875 */
7876
7877L.Control = L.Class.extend({
7878	options: {
7879		position: 'topright'
7880	},
7881
7882	initialize: function (options) {
7883		L.setOptions(this, options);
7884	},
7885
7886	getPosition: function () {
7887		return this.options.position;
7888	},
7889
7890	setPosition: function (position) {
7891		var map = this._map;
7892
7893		if (map) {
7894			map.removeControl(this);
7895		}
7896
7897		this.options.position = position;
7898
7899		if (map) {
7900			map.addControl(this);
7901		}
7902
7903		return this;
7904	},
7905
7906	getContainer: function () {
7907		return this._container;
7908	},
7909
7910	addTo: function (map) {
7911		this._map = map;
7912
7913		var container = this._container = this.onAdd(map),
7914		    pos = this.getPosition(),
7915		    corner = map._controlCorners[pos];
7916
7917		L.DomUtil.addClass(container, 'leaflet-control');
7918
7919		if (pos.indexOf('bottom') !== -1) {
7920			corner.insertBefore(container, corner.firstChild);
7921		} else {
7922			corner.appendChild(container);
7923		}
7924
7925		return this;
7926	},
7927
7928	removeFrom: function (map) {
7929		var pos = this.getPosition(),
7930		    corner = map._controlCorners[pos];
7931
7932		corner.removeChild(this._container);
7933		this._map = null;
7934
7935		if (this.onRemove) {
7936			this.onRemove(map);
7937		}
7938
7939		return this;
7940	},
7941
7942	_refocusOnMap: function () {
7943		if (this._map) {
7944			this._map.getContainer().focus();
7945		}
7946	}
7947});
7948
7949L.control = function (options) {
7950	return new L.Control(options);
7951};
7952
7953
7954// adds control-related methods to L.Map
7955
7956L.Map.include({
7957	addControl: function (control) {
7958		control.addTo(this);
7959		return this;
7960	},
7961
7962	removeControl: function (control) {
7963		control.removeFrom(this);
7964		return this;
7965	},
7966
7967	_initControlPos: function () {
7968		var corners = this._controlCorners = {},
7969		    l = 'leaflet-',
7970		    container = this._controlContainer =
7971		            L.DomUtil.create('div', l + 'control-container', this._container);
7972
7973		function createCorner(vSide, hSide) {
7974			var className = l + vSide + ' ' + l + hSide;
7975
7976			corners[vSide + hSide] = L.DomUtil.create('div', className, container);
7977		}
7978
7979		createCorner('top', 'left');
7980		createCorner('top', 'right');
7981		createCorner('bottom', 'left');
7982		createCorner('bottom', 'right');
7983	},
7984
7985	_clearControlPos: function () {
7986		this._container.removeChild(this._controlContainer);
7987	}
7988});
7989
7990
7991/*
7992 * L.Control.Zoom is used for the default zoom buttons on the map.
7993 */
7994
7995L.Control.Zoom = L.Control.extend({
7996	options: {
7997		position: 'topleft',
7998		zoomInText: '+',
7999		zoomInTitle: 'Zoom in',
8000		zoomOutText: '-',
8001		zoomOutTitle: 'Zoom out'
8002	},
8003
8004	onAdd: function (map) {
8005		var zoomName = 'leaflet-control-zoom',
8006		    container = L.DomUtil.create('div', zoomName + ' leaflet-bar');
8007
8008		this._map = map;
8009
8010		this._zoomInButton  = this._createButton(
8011		        this.options.zoomInText, this.options.zoomInTitle,
8012		        zoomName + '-in',  container, this._zoomIn,  this);
8013		this._zoomOutButton = this._createButton(
8014		        this.options.zoomOutText, this.options.zoomOutTitle,
8015		        zoomName + '-out', container, this._zoomOut, this);
8016
8017		this._updateDisabled();
8018		map.on('zoomend zoomlevelschange', this._updateDisabled, this);
8019
8020		return container;
8021	},
8022
8023	onRemove: function (map) {
8024		map.off('zoomend zoomlevelschange', this._updateDisabled, this);
8025	},
8026
8027	_zoomIn: function (e) {
8028		this._map.zoomIn(e.shiftKey ? 3 : 1);
8029	},
8030
8031	_zoomOut: function (e) {
8032		this._map.zoomOut(e.shiftKey ? 3 : 1);
8033	},
8034
8035	_createButton: function (html, title, className, container, fn, context) {
8036		var link = L.DomUtil.create('a', className, container);
8037		link.innerHTML = html;
8038		link.href = '#';
8039		link.title = title;
8040
8041		var stop = L.DomEvent.stopPropagation;
8042
8043		L.DomEvent
8044		    .on(link, 'click', stop)
8045		    .on(link, 'mousedown', stop)
8046		    .on(link, 'dblclick', stop)
8047		    .on(link, 'click', L.DomEvent.preventDefault)
8048		    .on(link, 'click', fn, context)
8049		    .on(link, 'click', this._refocusOnMap, context);
8050
8051		return link;
8052	},
8053
8054	_updateDisabled: function () {
8055		var map = this._map,
8056			className = 'leaflet-disabled';
8057
8058		L.DomUtil.removeClass(this._zoomInButton, className);
8059		L.DomUtil.removeClass(this._zoomOutButton, className);
8060
8061		if (map._zoom === map.getMinZoom()) {
8062			L.DomUtil.addClass(this._zoomOutButton, className);
8063		}
8064		if (map._zoom === map.getMaxZoom()) {
8065			L.DomUtil.addClass(this._zoomInButton, className);
8066		}
8067	}
8068});
8069
8070L.Map.mergeOptions({
8071	zoomControl: true
8072});
8073
8074L.Map.addInitHook(function () {
8075	if (this.options.zoomControl) {
8076		this.zoomControl = new L.Control.Zoom();
8077		this.addControl(this.zoomControl);
8078	}
8079});
8080
8081L.control.zoom = function (options) {
8082	return new L.Control.Zoom(options);
8083};
8084
8085
8086
8087/*
8088 * L.Control.Attribution is used for displaying attribution on the map (added by default).
8089 */
8090
8091L.Control.Attribution = L.Control.extend({
8092	options: {
8093		position: 'bottomright',
8094		prefix: '<a href="http://leafletjs.com" title="A JS library for interactive maps">Leaflet</a>'
8095	},
8096
8097	initialize: function (options) {
8098		L.setOptions(this, options);
8099
8100		this._attributions = {};
8101	},
8102
8103	onAdd: function (map) {
8104		this._container = L.DomUtil.create('div', 'leaflet-control-attribution');
8105		L.DomEvent.disableClickPropagation(this._container);
8106
8107		for (var i in map._layers) {
8108			if (map._layers[i].getAttribution) {
8109				this.addAttribution(map._layers[i].getAttribution());
8110			}
8111		}
8112		
8113		map
8114		    .on('layeradd', this._onLayerAdd, this)
8115		    .on('layerremove', this._onLayerRemove, this);
8116
8117		this._update();
8118
8119		return this._container;
8120	},
8121
8122	onRemove: function (map) {
8123		map
8124		    .off('layeradd', this._onLayerAdd)
8125		    .off('layerremove', this._onLayerRemove);
8126
8127	},
8128
8129	setPrefix: function (prefix) {
8130		this.options.prefix = prefix;
8131		this._update();
8132		return this;
8133	},
8134
8135	addAttribution: function (text) {
8136		if (!text) { return; }
8137
8138		if (!this._attributions[text]) {
8139			this._attributions[text] = 0;
8140		}
8141		this._attributions[text]++;
8142
8143		this._update();
8144
8145		return this;
8146	},
8147
8148	removeAttribution: function (text) {
8149		if (!text) { return; }
8150
8151		if (this._attributions[text]) {
8152			this._attributions[text]--;
8153			this._update();
8154		}
8155
8156		return this;
8157	},
8158
8159	_update: function () {
8160		if (!this._map) { return; }
8161
8162		var attribs = [];
8163
8164		for (var i in this._attributions) {
8165			if (this._attributions[i]) {
8166				attribs.push(i);
8167			}
8168		}
8169
8170		var prefixAndAttribs = [];
8171
8172		if (this.options.prefix) {
8173			prefixAndAttribs.push(this.options.prefix);
8174		}
8175		if (attribs.length) {
8176			prefixAndAttribs.push(attribs.join(', '));
8177		}
8178
8179		this._container.innerHTML = prefixAndAttribs.join(' | ');
8180	},
8181
8182	_onLayerAdd: function (e) {
8183		if (e.layer.getAttribution) {
8184			this.addAttribution(e.layer.getAttribution());
8185		}
8186	},
8187
8188	_onLayerRemove: function (e) {
8189		if (e.layer.getAttribution) {
8190			this.removeAttribution(e.layer.getAttribution());
8191		}
8192	}
8193});
8194
8195L.Map.mergeOptions({
8196	attributionControl: true
8197});
8198
8199L.Map.addInitHook(function () {
8200	if (this.options.attributionControl) {
8201		this.attributionControl = (new L.Control.Attribution()).addTo(this);
8202	}
8203});
8204
8205L.control.attribution = function (options) {
8206	return new L.Control.Attribution(options);
8207};
8208
8209
8210/*
8211 * L.Control.Scale is used for displaying metric/imperial scale on the map.
8212 */
8213
8214L.Control.Scale = L.Control.extend({
8215	options: {
8216		position: 'bottomleft',
8217		maxWidth: 100,
8218		metric: true,
8219		imperial: true,
8220		updateWhenIdle: false
8221	},
8222
8223	onAdd: function (map) {
8224		this._map = map;
8225
8226		var className = 'leaflet-control-scale',
8227		    container = L.DomUtil.create('div', className),
8228		    options = this.options;
8229
8230		this._addScales(options, className, container);
8231
8232		map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
8233		map.whenReady(this._update, this);
8234
8235		return container;
8236	},
8237
8238	onRemove: function (map) {
8239		map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
8240	},
8241
8242	_addScales: function (options, className, container) {
8243		if (options.metric) {
8244			this._mScale = L.DomUtil.create('div', className + '-line', container);
8245		}
8246		if (options.imperial) {
8247			this._iScale = L.DomUtil.create('div', className + '-line', container);
8248		}
8249	},
8250
8251	_update: function () {
8252		var bounds = this._map.getBounds(),
8253		    centerLat = bounds.getCenter().lat,
8254		    halfWorldMeters = 6378137 * Math.PI * Math.cos(centerLat * Math.PI / 180),
8255		    dist = halfWorldMeters * (bounds.getNorthEast().lng - bounds.getSouthWest().lng) / 180,
8256
8257		    size = this._map.getSize(),
8258		    options = this.options,
8259		    maxMeters = 0;
8260
8261		if (size.x > 0) {
8262			maxMeters = dist * (options.maxWidth / size.x);
8263		}
8264
8265		this._updateScales(options, maxMeters);
8266	},
8267
8268	_updateScales: function (options, maxMeters) {
8269		if (options.metric && maxMeters) {
8270			this._updateMetric(maxMeters);
8271		}
8272
8273		if (options.imperial && maxMeters) {
8274			this._updateImperial(maxMeters);
8275		}
8276	},
8277
8278	_updateMetric: function (maxMeters) {
8279		var meters = this._getRoundNum(maxMeters);
8280
8281		this._mScale.style.width = this._getScaleWidth(meters / maxMeters) + 'px';
8282		this._mScale.innerHTML = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km';
8283	},
8284
8285	_updateImperial: function (maxMeters) {
8286		var maxFeet = maxMeters * 3.2808399,
8287		    scale = this._iScale,
8288		    maxMiles, miles, feet;
8289
8290		if (maxFeet > 5280) {
8291			maxMiles = maxFeet / 5280;
8292			miles = this._getRoundNum(maxMiles);
8293
8294			scale.style.width = this._getScaleWidth(miles / maxMiles) + 'px';
8295			scale.innerHTML = miles + ' mi';
8296
8297		} else {
8298			feet = this._getRoundNum(maxFeet);
8299
8300			scale.style.width = this._getScaleWidth(feet / maxFeet) + 'px';
8301			scale.innerHTML = feet + ' ft';
8302		}
8303	},
8304
8305	_getScaleWidth: function (ratio) {
8306		return Math.round(this.options.maxWidth * ratio) - 10;
8307	},
8308
8309	_getRoundNum: function (num) {
8310		var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1),
8311		    d = num / pow10;
8312
8313		d = d >= 10 ? 10 : d >= 5 ? 5 : d >= 3 ? 3 : d >= 2 ? 2 : 1;
8314
8315		return pow10 * d;
8316	}
8317});
8318
8319L.control.scale = function (options) {
8320	return new L.Control.Scale(options);
8321};
8322
8323
8324/*
8325 * L.Control.Layers is a control to allow users to switch between different layers on the map.
8326 */
8327
8328L.Control.Layers = L.Control.extend({
8329	options: {
8330		collapsed: true,
8331		position: 'topright',
8332		autoZIndex: true
8333	},
8334
8335	initialize: function (baseLayers, overlays, options) {
8336		L.setOptions(this, options);
8337
8338		this._layers = {};
8339		this._lastZIndex = 0;
8340		this._handlingClick = false;
8341
8342		for (var i in baseLayers) {
8343			this._addLayer(baseLayers[i], i);
8344		}
8345
8346		for (i in overlays) {
8347			this._addLayer(overlays[i], i, true);
8348		}
8349	},
8350
8351	onAdd: function (map) {
8352		this._initLayout();
8353		this._update();
8354
8355		map
8356		    .on('layeradd', this._onLayerChange, this)
8357		    .on('layerremove', this._onLayerChange, this);
8358
8359		return this._container;
8360	},
8361
8362	onRemove: function (map) {
8363		map
8364		    .off('layeradd', this._onLayerChange, this)
8365		    .off('layerremove', this._onLayerChange, this);
8366	},
8367
8368	addBaseLayer: function (layer, name) {
8369		this._addLayer(layer, name);
8370		this._update();
8371		return this;
8372	},
8373
8374	addOverlay: function (layer, name) {
8375		this._addLayer(layer, name, true);
8376		this._update();
8377		return this;
8378	},
8379
8380	removeLayer: function (layer) {
8381		var id = L.stamp(layer);
8382		delete this._layers[id];
8383		this._update();
8384		return this;
8385	},
8386
8387	_initLayout: function () {
8388		var className = 'leaflet-control-layers',
8389		    container = this._container = L.DomUtil.create('div', className);
8390
8391		//Makes this work on IE10 Touch devices by stopping it from firing a mouseout event when the touch is released
8392		container.setAttribute('aria-haspopup', true);
8393
8394		if (!L.Browser.touch) {
8395			L.DomEvent
8396				.disableClickPropagation(container)
8397				.disableScrollPropagation(container);
8398		} else {
8399			L.DomEvent.on(container, 'click', L.DomEvent.stopPropagation);
8400		}
8401
8402		var form = this._form = L.DomUtil.create('form', className + '-list');
8403
8404		if (this.options.collapsed) {
8405			if (!L.Browser.android) {
8406				L.DomEvent
8407				    .on(container, 'mouseover', this._expand, this)
8408				    .on(container, 'mouseout', this._collapse, this);
8409			}
8410			var link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container);
8411			link.href = '#';
8412			link.title = 'Layers';
8413
8414			if (L.Browser.touch) {
8415				L.DomEvent
8416				    .on(link, 'click', L.DomEvent.stop)
8417				    .on(link, 'click', this._expand, this);
8418			}
8419			else {
8420				L.DomEvent.on(link, 'focus', this._expand, this);
8421			}
8422			//Work around for Firefox android issue https://github.com/Leaflet/Leaflet/issues/2033
8423			L.DomEvent.on(form, 'click', function () {
8424				setTimeout(L.bind(this._onInputClick, this), 0);
8425			}, this);
8426
8427			this._map.on('click', this._collapse, this);
8428			// TODO keyboard accessibility
8429		} else {
8430			this._expand();
8431		}
8432
8433		this._baseLayersList = L.DomUtil.create('div', className + '-base', form);
8434		this._separator = L.DomUtil.create('div', className + '-separator', form);
8435		this._overlaysList = L.DomUtil.create('div', className + '-overlays', form);
8436
8437		container.appendChild(form);
8438	},
8439
8440	_addLayer: function (layer, name, overlay) {
8441		var id = L.stamp(layer);
8442
8443		this._layers[id] = {
8444			layer: layer,
8445			name: name,
8446			overlay: overlay
8447		};
8448
8449		if (this.options.autoZIndex && layer.setZIndex) {
8450			this._lastZIndex++;
8451			layer.setZIndex(this._lastZIndex);
8452		}
8453	},
8454
8455	_update: function () {
8456		if (!this._container) {
8457			return;
8458		}
8459
8460		this._baseLayersList.innerHTML = '';
8461		this._overlaysList.innerHTML = '';
8462
8463		var baseLayersPresent = false,
8464		    overlaysPresent = false,
8465		    i, obj;
8466
8467		for (i in this._layers) {
8468			obj = this._layers[i];
8469			this._addItem(obj);
8470			overlaysPresent = overlaysPresent || obj.overlay;
8471			baseLayersPresent = baseLayersPresent || !obj.overlay;
8472		}
8473
8474		this._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none';
8475	},
8476
8477	_onLayerChange: function (e) {
8478		var obj = this._layers[L.stamp(e.layer)];
8479
8480		if (!obj) { return; }
8481
8482		if (!this._handlingClick) {
8483			this._update();
8484		}
8485
8486		var type = obj.overlay ?
8487			(e.type === 'layeradd' ? 'overlayadd' : 'overlayremove') :
8488			(e.type === 'layeradd' ? 'baselayerchange' : null);
8489
8490		if (type) {
8491			this._map.fire(type, obj);
8492		}
8493	},
8494
8495	// IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe)
8496	_createRadioElement: function (name, checked) {
8497
8498		var radioHtml = '<input type="radio" class="leaflet-control-layers-selector" name="' + name + '"';
8499		if (checked) {
8500			radioHtml += ' checked="checked"';
8501		}
8502		radioHtml += '/>';
8503
8504		var radioFragment = document.createElement('div');
8505		radioFragment.innerHTML = radioHtml;
8506
8507		return radioFragment.firstChild;
8508	},
8509
8510	_addItem: function (obj) {
8511		var label = document.createElement('label'),
8512		    input,
8513		    checked = this._map.hasLayer(obj.layer);
8514
8515		if (obj.overlay) {
8516			input = document.createElement('input');
8517			input.type = 'checkbox';
8518			input.className = 'leaflet-control-layers-selector';
8519			input.defaultChecked = checked;
8520		} else {
8521			input = this._createRadioElement('leaflet-base-layers', checked);
8522		}
8523
8524		input.layerId = L.stamp(obj.layer);
8525
8526		L.DomEvent.on(input, 'click', this._onInputClick, this);
8527
8528		var name = document.createElement('span');
8529		name.innerHTML = ' ' + obj.name;
8530
8531		label.appendChild(input);
8532		label.appendChild(name);
8533
8534		var container = obj.overlay ? this._overlaysList : this._baseLayersList;
8535		container.appendChild(label);
8536
8537		return label;
8538	},
8539
8540	_onInputClick: function () {
8541		var i, input, obj,
8542		    inputs = this._form.getElementsByTagName('input'),
8543		    inputsLen = inputs.length;
8544
8545		this._handlingClick = true;
8546
8547		for (i = 0; i < inputsLen; i++) {
8548			input = inputs[i];
8549			obj = this._layers[input.layerId];
8550
8551			if (input.checked && !this._map.hasLayer(obj.layer)) {
8552				this._map.addLayer(obj.layer);
8553
8554			} else if (!input.checked && this._map.hasLayer(obj.layer)) {
8555				this._map.removeLayer(obj.layer);
8556			}
8557		}
8558
8559		this._handlingClick = false;
8560
8561		this._refocusOnMap();
8562	},
8563
8564	_expand: function () {
8565		L.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded');
8566	},
8567
8568	_collapse: function () {
8569		this._container.className = this._container.className.replace(' leaflet-control-layers-expanded', '');
8570	}
8571});
8572
8573L.control.layers = function (baseLayers, overlays, options) {
8574	return new L.Control.Layers(baseLayers, overlays, options);
8575};
8576
8577
8578/*
8579 * L.PosAnimation is used by Leaflet internally for pan animations.
8580 */
8581
8582L.PosAnimation = L.Class.extend({
8583	includes: L.Mixin.Events,
8584
8585	run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number])
8586		this.stop();
8587
8588		this._el = el;
8589		this._inProgress = true;
8590		this._newPos = newPos;
8591
8592		this.fire('start');
8593
8594		el.style[L.DomUtil.TRANSITION] = 'all ' + (duration || 0.25) +
8595		        's cubic-bezier(0,0,' + (easeLinearity || 0.5) + ',1)';
8596
8597		L.DomEvent.on(el, L.DomUtil.TRANSITION_END, this._onTransitionEnd, this);
8598		L.DomUtil.setPosition(el, newPos);
8599
8600		// toggle reflow, Chrome flickers for some reason if you don't do this
8601		L.Util.falseFn(el.offsetWidth);
8602
8603		// there's no native way to track value updates of transitioned properties, so we imitate this
8604		this._stepTimer = setInterval(L.bind(this._onStep, this), 50);
8605	},
8606
8607	stop: function () {
8608		if (!this._inProgress) { return; }
8609
8610		// if we just removed the transition property, the element would jump to its final position,
8611		// so we need to make it stay at the current position
8612
8613		L.DomUtil.setPosition(this._el, this._getPos());
8614		this._onTransitionEnd();
8615		L.Util.falseFn(this._el.offsetWidth); // force reflow in case we are about to start a new animation
8616	},
8617
8618	_onStep: function () {
8619		var stepPos = this._getPos();
8620		if (!stepPos) {
8621			this._onTransitionEnd();
8622			return;
8623		}
8624		// jshint camelcase: false
8625		// make L.DomUtil.getPosition return intermediate position value during animation
8626		this._el._leaflet_pos = stepPos;
8627
8628		this.fire('step');
8629	},
8630
8631	// you can't easily get intermediate values of properties animated with CSS3 Transitions,
8632	// we need to parse computed style (in case of transform it returns matrix string)
8633
8634	_transformRe: /([-+]?(?:\d*\.)?\d+)\D*, ([-+]?(?:\d*\.)?\d+)\D*\)/,
8635
8636	_getPos: function () {
8637		var left, top, matches,
8638		    el = this._el,
8639		    style = window.getComputedStyle(el);
8640
8641		if (L.Browser.any3d) {
8642			matches = style[L.DomUtil.TRANSFORM].match(this._transformRe);
8643			if (!matches) { return; }
8644			left = parseFloat(matches[1]);
8645			top  = parseFloat(matches[2]);
8646		} else {
8647			left = parseFloat(style.left);
8648			top  = parseFloat(style.top);
8649		}
8650
8651		return new L.Point(left, top, true);
8652	},
8653
8654	_onTransitionEnd: function () {
8655		L.DomEvent.off(this._el, L.DomUtil.TRANSITION_END, this._onTransitionEnd, this);
8656
8657		if (!this._inProgress) { return; }
8658		this._inProgress = false;
8659
8660		this._el.style[L.DomUtil.TRANSITION] = '';
8661
8662		// jshint camelcase: false
8663		// make sure L.DomUtil.getPosition returns the final position value after animation
8664		this._el._leaflet_pos = this._newPos;
8665
8666		clearInterval(this._stepTimer);
8667
8668		this.fire('step').fire('end');
8669	}
8670
8671});
8672
8673
8674/*
8675 * Extends L.Map to handle panning animations.
8676 */
8677
8678L.Map.include({
8679
8680	setView: function (center, zoom, options) {
8681
8682		zoom = zoom === undefined ? this._zoom : this._limitZoom(zoom);
8683		center = this._limitCenter(L.latLng(center), zoom, this.options.maxBounds);
8684		options = options || {};
8685
8686		if (this._panAnim) {
8687			this._panAnim.stop();
8688		}
8689
8690		if (this._loaded && !options.reset && options !== true) {
8691
8692			if (options.animate !== undefined) {
8693				options.zoom = L.extend({animate: options.animate}, options.zoom);
8694				options.pan = L.extend({animate: options.animate}, options.pan);
8695			}
8696
8697			// try animating pan or zoom
8698			var animated = (this._zoom !== zoom) ?
8699				this._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) :
8700				this._tryAnimatedPan(center, options.pan);
8701
8702			if (animated) {
8703				// prevent resize handler call, the view will refresh after animation anyway
8704				clearTimeout(this._sizeTimer);
8705				return this;
8706			}
8707		}
8708
8709		// animation didn't start, just reset the map view
8710		this._resetView(center, zoom);
8711
8712		return this;
8713	},
8714
8715	panBy: function (offset, options) {
8716		offset = L.point(offset).round();
8717		options = options || {};
8718
8719		if (!offset.x && !offset.y) {
8720			return this;
8721		}
8722
8723		if (!this._panAnim) {
8724			this._panAnim = new L.PosAnimation();
8725
8726			this._panAnim.on({
8727				'step': this._onPanTransitionStep,
8728				'end': this._onPanTransitionEnd
8729			}, this);
8730		}
8731
8732		// don't fire movestart if animating inertia
8733		if (!options.noMoveStart) {
8734			this.fire('movestart');
8735		}
8736
8737		// animate pan unless animate: false specified
8738		if (options.animate !== false) {
8739			L.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim');
8740
8741			var newPos = this._getMapPanePos().subtract(offset);
8742			this._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity);
8743		} else {
8744			this._rawPanBy(offset);
8745			this.fire('move').fire('moveend');
8746		}
8747
8748		return this;
8749	},
8750
8751	_onPanTransitionStep: function () {
8752		this.fire('move');
8753	},
8754
8755	_onPanTransitionEnd: function () {
8756		L.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim');
8757		this.fire('moveend');
8758	},
8759
8760	_tryAnimatedPan: function (center, options) {
8761		// difference between the new and current centers in pixels
8762		var offset = this._getCenterOffset(center)._floor();
8763
8764		// don't animate too far unless animate: true specified in options
8765		if ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; }
8766
8767		this.panBy(offset, options);
8768
8769		return true;
8770	}
8771});
8772
8773
8774/*
8775 * L.PosAnimation fallback implementation that powers Leaflet pan animations
8776 * in browsers that don't support CSS3 Transitions.
8777 */
8778
8779L.PosAnimation = L.DomUtil.TRANSITION ? L.PosAnimation : L.PosAnimation.extend({
8780
8781	run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number])
8782		this.stop();
8783
8784		this._el = el;
8785		this._inProgress = true;
8786		this._duration = duration || 0.25;
8787		this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2);
8788
8789		this._startPos = L.DomUtil.getPosition(el);
8790		this._offset = newPos.subtract(this._startPos);
8791		this._startTime = +new Date();
8792
8793		this.fire('start');
8794
8795		this._animate();
8796	},
8797
8798	stop: function () {
8799		if (!this._inProgress) { return; }
8800
8801		this._step();
8802		this._complete();
8803	},
8804
8805	_animate: function () {
8806		// animation loop
8807		this._animId = L.Util.requestAnimFrame(this._animate, this);
8808		this._step();
8809	},
8810
8811	_step: function () {
8812		var elapsed = (+new Date()) - this._startTime,
8813		    duration = this._duration * 1000;
8814
8815		if (elapsed < duration) {
8816			this._runFrame(this._easeOut(elapsed / duration));
8817		} else {
8818			this._runFrame(1);
8819			this._complete();
8820		}
8821	},
8822
8823	_runFrame: function (progress) {
8824		var pos = this._startPos.add(this._offset.multiplyBy(progress));
8825		L.DomUtil.setPosition(this._el, pos);
8826
8827		this.fire('step');
8828	},
8829
8830	_complete: function () {
8831		L.Util.cancelAnimFrame(this._animId);
8832
8833		this._inProgress = false;
8834		this.fire('end');
8835	},
8836
8837	_easeOut: function (t) {
8838		return 1 - Math.pow(1 - t, this._easeOutPower);
8839	}
8840});
8841
8842
8843/*
8844 * Extends L.Map to handle zoom animations.
8845 */
8846
8847L.Map.mergeOptions({
8848	zoomAnimation: true,
8849	zoomAnimationThreshold: 4
8850});
8851
8852if (L.DomUtil.TRANSITION) {
8853
8854	L.Map.addInitHook(function () {
8855		// don't animate on browsers without hardware-accelerated transitions or old Android/Opera
8856		this._zoomAnimated = this.options.zoomAnimation && L.DomUtil.TRANSITION &&
8857				L.Browser.any3d && !L.Browser.android23 && !L.Browser.mobileOpera;
8858
8859		// zoom transitions run with the same duration for all layers, so if one of transitionend events
8860		// happens after starting zoom animation (propagating to the map pane), we know that it ended globally
8861		if (this._zoomAnimated) {
8862			L.DomEvent.on(this._mapPane, L.DomUtil.TRANSITION_END, this._catchTransitionEnd, this);
8863		}
8864	});
8865}
8866
8867L.Map.include(!L.DomUtil.TRANSITION ? {} : {
8868
8869	_catchTransitionEnd: function (e) {
8870		if (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) {
8871			this._onZoomTransitionEnd();
8872		}
8873	},
8874
8875	_nothingToAnimate: function () {
8876		return !this._container.getElementsByClassName('leaflet-zoom-animated').length;
8877	},
8878
8879	_tryAnimatedZoom: function (center, zoom, options) {
8880
8881		if (this._animatingZoom) { return true; }
8882
8883		options = options || {};
8884
8885		// don't animate if disabled, not supported or zoom difference is too large
8886		if (!this._zoomAnimated || options.animate === false || this._nothingToAnimate() ||
8887		        Math.abs(zoom - this._zoom) > this.options.zoomAnimationThreshold) { return false; }
8888
8889		// offset is the pixel coords of the zoom origin relative to the current center
8890		var scale = this.getZoomScale(zoom),
8891		    offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale),
8892			origin = this._getCenterLayerPoint()._add(offset);
8893
8894		// don't animate if the zoom origin isn't within one screen from the current center, unless forced
8895		if (options.animate !== true && !this.getSize().contains(offset)) { return false; }
8896
8897		this
8898		    .fire('movestart')
8899		    .fire('zoomstart');
8900
8901		this._animateZoom(center, zoom, origin, scale, null, true);
8902
8903		return true;
8904	},
8905
8906	_animateZoom: function (center, zoom, origin, scale, delta, backwards, forTouchZoom) {
8907
8908		if (!forTouchZoom) {
8909			this._animatingZoom = true;
8910		}
8911
8912		// put transform transition on all layers with leaflet-zoom-animated class
8913		L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim');
8914
8915		// remember what center/zoom to set after animation
8916		this._animateToCenter = center;
8917		this._animateToZoom = zoom;
8918
8919		// disable any dragging during animation
8920		if (L.Draggable) {
8921			L.Draggable._disabled = true;
8922		}
8923
8924		L.Util.requestAnimFrame(function () {
8925			this.fire('zoomanim', {
8926				center: center,
8927				zoom: zoom,
8928				origin: origin,
8929				scale: scale,
8930				delta: delta,
8931				backwards: backwards
8932			});
8933			// horrible hack to work around a Chrome bug https://github.com/Leaflet/Leaflet/issues/3689
8934			setTimeout(L.bind(this._onZoomTransitionEnd, this), 250);
8935		}, this);
8936	},
8937
8938	_onZoomTransitionEnd: function () {
8939		if (!this._animatingZoom) { return; }
8940
8941		this._animatingZoom = false;
8942
8943		L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim');
8944
8945		L.Util.requestAnimFrame(function () {
8946			this._resetView(this._animateToCenter, this._animateToZoom, true, true);
8947
8948			if (L.Draggable) {
8949				L.Draggable._disabled = false;
8950			}
8951		}, this);
8952	}
8953});
8954
8955
8956/*
8957	Zoom animation logic for L.TileLayer.
8958*/
8959
8960L.TileLayer.include({
8961	_animateZoom: function (e) {
8962		if (!this._animating) {
8963			this._animating = true;
8964			this._prepareBgBuffer();
8965		}
8966
8967		var bg = this._bgBuffer,
8968		    transform = L.DomUtil.TRANSFORM,
8969		    initialTransform = e.delta ? L.DomUtil.getTranslateString(e.delta) : bg.style[transform],
8970		    scaleStr = L.DomUtil.getScaleString(e.scale, e.origin);
8971
8972		bg.style[transform] = e.backwards ?
8973				scaleStr + ' ' + initialTransform :
8974				initialTransform + ' ' + scaleStr;
8975	},
8976
8977	_endZoomAnim: function () {
8978		var front = this._tileContainer,
8979		    bg = this._bgBuffer;
8980
8981		front.style.visibility = '';
8982		front.parentNode.appendChild(front); // Bring to fore
8983
8984		// force reflow
8985		L.Util.falseFn(bg.offsetWidth);
8986
8987		var zoom = this._map.getZoom();
8988		if (zoom > this.options.maxZoom || zoom < this.options.minZoom) {
8989			this._clearBgBuffer();
8990		}
8991
8992		this._animating = false;
8993	},
8994
8995	_clearBgBuffer: function () {
8996		var map = this._map;
8997
8998		if (map && !map._animatingZoom && !map.touchZoom._zooming) {
8999			this._bgBuffer.innerHTML = '';
9000			this._bgBuffer.style[L.DomUtil.TRANSFORM] = '';
9001		}
9002	},
9003
9004	_prepareBgBuffer: function () {
9005
9006		var front = this._tileContainer,
9007		    bg = this._bgBuffer;
9008
9009		// if foreground layer doesn't have many tiles but bg layer does,
9010		// keep the existing bg layer and just zoom it some more
9011
9012		var bgLoaded = this._getLoadedTilesPercentage(bg),
9013		    frontLoaded = this._getLoadedTilesPercentage(front);
9014
9015		if (bg && bgLoaded > 0.5 && frontLoaded < 0.5) {
9016
9017			front.style.visibility = 'hidden';
9018			this._stopLoadingImages(front);
9019			return;
9020		}
9021
9022		// prepare the buffer to become the front tile pane
9023		bg.style.visibility = 'hidden';
9024		bg.style[L.DomUtil.TRANSFORM] = '';
9025
9026		// switch out the current layer to be the new bg layer (and vice-versa)
9027		this._tileContainer = bg;
9028		bg = this._bgBuffer = front;
9029
9030		this._stopLoadingImages(bg);
9031
9032		//prevent bg buffer from clearing right after zoom
9033		clearTimeout(this._clearBgBufferTimer);
9034	},
9035
9036	_getLoadedTilesPercentage: function (container) {
9037		var tiles = container.getElementsByTagName('img'),
9038		    i, len, count = 0;
9039
9040		for (i = 0, len = tiles.length; i < len; i++) {
9041			if (tiles[i].complete) {
9042				count++;
9043			}
9044		}
9045		return count / len;
9046	},
9047
9048	// stops loading all tiles in the background layer
9049	_stopLoadingImages: function (container) {
9050		var tiles = Array.prototype.slice.call(container.getElementsByTagName('img')),
9051		    i, len, tile;
9052
9053		for (i = 0, len = tiles.length; i < len; i++) {
9054			tile = tiles[i];
9055
9056			if (!tile.complete) {
9057				tile.onload = L.Util.falseFn;
9058				tile.onerror = L.Util.falseFn;
9059				tile.src = L.Util.emptyImageUrl;
9060
9061				tile.parentNode.removeChild(tile);
9062			}
9063		}
9064	}
9065});
9066
9067
9068/*
9069 * Provides L.Map with convenient shortcuts for using browser geolocation features.
9070 */
9071
9072L.Map.include({
9073	_defaultLocateOptions: {
9074		watch: false,
9075		setView: false,
9076		maxZoom: Infinity,
9077		timeout: 10000,
9078		maximumAge: 0,
9079		enableHighAccuracy: false
9080	},
9081
9082	locate: function (/*Object*/ options) {
9083
9084		options = this._locateOptions = L.extend(this._defaultLocateOptions, options);
9085
9086		if (!navigator.geolocation) {
9087			this._handleGeolocationError({
9088				code: 0,
9089				message: 'Geolocation not supported.'
9090			});
9091			return this;
9092		}
9093
9094		var onResponse = L.bind(this._handleGeolocationResponse, this),
9095			onError = L.bind(this._handleGeolocationError, this);
9096
9097		if (options.watch) {
9098			this._locationWatchId =
9099			        navigator.geolocation.watchPosition(onResponse, onError, options);
9100		} else {
9101			navigator.geolocation.getCurrentPosition(onResponse, onError, options);
9102		}
9103		return this;
9104	},
9105
9106	stopLocate: function () {
9107		if (navigator.geolocation) {
9108			navigator.geolocation.clearWatch(this._locationWatchId);
9109		}
9110		if (this._locateOptions) {
9111			this._locateOptions.setView = false;
9112		}
9113		return this;
9114	},
9115
9116	_handleGeolocationError: function (error) {
9117		var c = error.code,
9118		    message = error.message ||
9119		            (c === 1 ? 'permission denied' :
9120		            (c === 2 ? 'position unavailable' : 'timeout'));
9121
9122		if (this._locateOptions.setView && !this._loaded) {
9123			this.fitWorld();
9124		}
9125
9126		this.fire('locationerror', {
9127			code: c,
9128			message: 'Geolocation error: ' + message + '.'
9129		});
9130	},
9131
9132	_handleGeolocationResponse: function (pos) {
9133		var lat = pos.coords.latitude,
9134		    lng = pos.coords.longitude,
9135		    latlng = new L.LatLng(lat, lng),
9136
9137		    latAccuracy = 180 * pos.coords.accuracy / 40075017,
9138		    lngAccuracy = latAccuracy / Math.cos(L.LatLng.DEG_TO_RAD * lat),
9139
9140		    bounds = L.latLngBounds(
9141		            [lat - latAccuracy, lng - lngAccuracy],
9142		            [lat + latAccuracy, lng + lngAccuracy]),
9143
9144		    options = this._locateOptions;
9145
9146		if (options.setView) {
9147			var zoom = Math.min(this.getBoundsZoom(bounds), options.maxZoom);
9148			this.setView(latlng, zoom);
9149		}
9150
9151		var data = {
9152			latlng: latlng,
9153			bounds: bounds,
9154			timestamp: pos.timestamp
9155		};
9156
9157		for (var i in pos.coords) {
9158			if (typeof pos.coords[i] === 'number') {
9159				data[i] = pos.coords[i];
9160			}
9161		}
9162
9163		this.fire('locationfound', data);
9164	}
9165});
9166
9167
9168}(window, document));