vendor/assets/leaflet/leaflet.js

   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) {
   7 var oldL = window.L,
   8     L = {};
   9
  10 L.version = '0.7.3';
  11
  12 // define Leaflet for Node module pattern loaders, including Browserify
  13 if (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
  23 L.noConflict = function () {
  24         window.L = oldL;
  25         return this;
  26 };
  27
  28 window.L = L;
  29
  30
  31 /*
  32  * L.Util contains various utility functions used throughout Leaflet code.
  33  */
  34
  35 L.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
 209 L.extend = L.Util.extend;
 210 L.bind = L.Util.bind;
 211 L.stamp = L.Util.stamp;
 212 L.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
 220 L.Class = function () {};
 221
 222 L.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
 301 L.Class.include = function (props) {
 302         L.extend(this.prototype, props);
 303 };
 304
 305 // merge new default options to the Class
 306 L.Class.mergeOptions = function (options) {
 307         L.extend(this.prototype.options, options);
 308 };
 309
 310 // add a constructor hook
 311 L.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
 327 var eventsKey = '_leaflet_events';
 328
 329 L.Mixin = {};
 330
 331 L.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
 497 L.Mixin.Events.on = L.Mixin.Events.addEventListener;
 498 L.Mixin.Events.off = L.Mixin.Events.removeEventListener;
 499 L.Mixin.Events.once = L.Mixin.Events.addOneTimeEventListener;
 500 L.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.navigator && window.navigator.msPointerEnabled &&
 523                       window.navigator.msMaxTouchPoints && !window.PointerEvent,
 524                 pointer = (window.PointerEvent && window.navigator.pointerEnabled && window.navigator.maxTouchPoints) ||
 525                                   msPointer,
 526             retina = ('devicePixelRatio' in window && window.devicePixelRatio > 1) ||
 527                      ('matchMedia' in window && window.matchMedia('(min-resolution:144dpi)') &&
 528                       window.matchMedia('(min-resolution:144dpi)').matches),
 529
 530             doc = document.documentElement,
 531             ie3d = ie && ('transition' in doc.style),
 532             webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23,
 533             gecko3d = 'MozPerspective' in doc.style,
 534             opera3d = 'OTransition' in doc.style,
 535             any3d = !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d || opera3d) && !phantomjs;
 536
 537
 538         // PhantomJS has 'ontouchstart' in document.documentElement, but doesn't actually support touch.
 539         // https://github.com/Leaflet/Leaflet/pull/1434#issuecomment-13843151
 540
 541         var touch = !window.L_NO_TOUCH && !phantomjs && (function () {
 542
 543                 var startName = 'ontouchstart';
 544
 545                 // IE10+ (We simulate these into touch* events in L.DomEvent and L.DomEvent.Pointer) or WebKit, etc.
 546                 if (pointer || (startName in doc)) {
 547                         return true;
 548                 }
 549
 550                 // Firefox/Gecko
 551                 var div = document.createElement('div'),
 552                     supported = false;
 553
 554                 if (!div.setAttribute) {
 555                         return false;
 556                 }
 557                 div.setAttribute(startName, 'return;');
 558
 559                 if (typeof div[startName] === 'function') {
 560                         supported = true;
 561                 }
 562
 563                 div.removeAttribute(startName);
 564                 div = null;
 565
 566                 return supported;
 567         }());
 568
 569
 570         L.Browser = {
 571                 ie: ie,
 572                 ielt9: ielt9,
 573                 webkit: webkit,
 574                 gecko: gecko && !webkit && !window.opera && !ie,
 575
 576                 android: android,
 577                 android23: android23,
 578
 579                 chrome: chrome,
 580
 581                 ie3d: ie3d,
 582                 webkit3d: webkit3d,
 583                 gecko3d: gecko3d,
 584                 opera3d: opera3d,
 585                 any3d: any3d,
 586
 587                 mobile: mobile,
 588                 mobileWebkit: mobile && webkit,
 589                 mobileWebkit3d: mobile && webkit3d,
 590                 mobileOpera: mobile && window.opera,
 591
 592                 touch: touch,
 593                 msPointer: msPointer,
 594                 pointer: pointer,
 595
 596                 retina: retina
 597         };
 598
 599 }());
 600
 601
 602 /*
 603  * L.Point represents a point with x and y coordinates.
 604  */
 605
 606 L.Point = function (/*Number*/ x, /*Number*/ y, /*Boolean*/ round) {
 607         this.x = (round ? Math.round(x) : x);
 608         this.y = (round ? Math.round(y) : y);
 609 };
 610
 611 L.Point.prototype = {
 612
 613         clone: function () {
 614                 return new L.Point(this.x, this.y);
 615         },
 616
 617         // non-destructive, returns a new point
 618         add: function (point) {
 619                 return this.clone()._add(L.point(point));
 620         },
 621
 622         // destructive, used directly for performance in situations where it's safe to modify existing point
 623         _add: function (point) {
 624                 this.x += point.x;
 625                 this.y += point.y;
 626                 return this;
 627         },
 628
 629         subtract: function (point) {
 630                 return this.clone()._subtract(L.point(point));
 631         },
 632
 633         _subtract: function (point) {
 634                 this.x -= point.x;
 635                 this.y -= point.y;
 636                 return this;
 637         },
 638
 639         divideBy: function (num) {
 640                 return this.clone()._divideBy(num);
 641         },
 642
 643         _divideBy: function (num) {
 644                 this.x /= num;
 645                 this.y /= num;
 646                 return this;
 647         },
 648
 649         multiplyBy: function (num) {
 650                 return this.clone()._multiplyBy(num);
 651         },
 652
 653         _multiplyBy: function (num) {
 654                 this.x *= num;
 655                 this.y *= num;
 656                 return this;
 657         },
 658
 659         round: function () {
 660                 return this.clone()._round();
 661         },
 662
 663         _round: function () {
 664                 this.x = Math.round(this.x);
 665                 this.y = Math.round(this.y);
 666                 return this;
 667         },
 668
 669         floor: function () {
 670                 return this.clone()._floor();
 671         },
 672
 673         _floor: function () {
 674                 this.x = Math.floor(this.x);
 675                 this.y = Math.floor(this.y);
 676                 return this;
 677         },
 678
 679         distanceTo: function (point) {
 680                 point = L.point(point);
 681
 682                 var x = point.x - this.x,
 683                     y = point.y - this.y;
 684
 685                 return Math.sqrt(x * x + y * y);
 686         },
 687
 688         equals: function (point) {
 689                 point = L.point(point);
 690
 691                 return point.x === this.x &&
 692                        point.y === this.y;
 693         },
 694
 695         contains: function (point) {
 696                 point = L.point(point);
 697
 698                 return Math.abs(point.x) <= Math.abs(this.x) &&
 699                        Math.abs(point.y) <= Math.abs(this.y);
 700         },
 701
 702         toString: function () {
 703                 return 'Point(' +
 704                         L.Util.formatNum(this.x) + ', ' +
 705                         L.Util.formatNum(this.y) + ')';
 706         }
 707 };
 708
 709 L.point = function (x, y, round) {
 710         if (x instanceof L.Point) {
 711                 return x;
 712         }
 713         if (L.Util.isArray(x)) {
 714                 return new L.Point(x[0], x[1]);
 715         }
 716         if (x === undefined || x === null) {
 717                 return x;
 718         }
 719         return new L.Point(x, y, round);
 720 };
 721
 722
 723 /*
 724  * L.Bounds represents a rectangular area on the screen in pixel coordinates.
 725  */
 726
 727 L.Bounds = function (a, b) { //(Point, Point) or Point[]
 728         if (!a) { return; }
 729
 730         var points = b ? [a, b] : a;
 731
 732         for (var i = 0, len = points.length; i < len; i++) {
 733                 this.extend(points[i]);
 734         }
 735 };
 736
 737 L.Bounds.prototype = {
 738         // extend the bounds to contain the given point
 739         extend: function (point) { // (Point)
 740                 point = L.point(point);
 741
 742                 if (!this.min && !this.max) {
 743                         this.min = point.clone();
 744                         this.max = point.clone();
 745                 } else {
 746                         this.min.x = Math.min(point.x, this.min.x);
 747                         this.max.x = Math.max(point.x, this.max.x);
 748                         this.min.y = Math.min(point.y, this.min.y);
 749                         this.max.y = Math.max(point.y, this.max.y);
 750                 }
 751                 return this;
 752         },
 753
 754         getCenter: function (round) { // (Boolean) -> Point
 755                 return new L.Point(
 756                         (this.min.x + this.max.x) / 2,
 757                         (this.min.y + this.max.y) / 2, round);
 758         },
 759
 760         getBottomLeft: function () { // -> Point
 761                 return new L.Point(this.min.x, this.max.y);
 762         },
 763
 764         getTopRight: function () { // -> Point
 765                 return new L.Point(this.max.x, this.min.y);
 766         },
 767
 768         getSize: function () {
 769                 return this.max.subtract(this.min);
 770         },
 771
 772         contains: function (obj) { // (Bounds) or (Point) -> Boolean
 773                 var min, max;
 774
 775                 if (typeof obj[0] === 'number' || obj instanceof L.Point) {
 776                         obj = L.point(obj);
 777                 } else {
 778                         obj = L.bounds(obj);
 779                 }
 780
 781                 if (obj instanceof L.Bounds) {
 782                         min = obj.min;
 783                         max = obj.max;
 784                 } else {
 785                         min = max = obj;
 786                 }
 787
 788                 return (min.x >= this.min.x) &&
 789                        (max.x <= this.max.x) &&
 790                        (min.y >= this.min.y) &&
 791                        (max.y <= this.max.y);
 792         },
 793
 794         intersects: function (bounds) { // (Bounds) -> Boolean
 795                 bounds = L.bounds(bounds);
 796
 797                 var min = this.min,
 798                     max = this.max,
 799                     min2 = bounds.min,
 800                     max2 = bounds.max,
 801                     xIntersects = (max2.x >= min.x) && (min2.x <= max.x),
 802                     yIntersects = (max2.y >= min.y) && (min2.y <= max.y);
 803
 804                 return xIntersects && yIntersects;
 805         },
 806
 807         isValid: function () {
 808                 return !!(this.min && this.max);
 809         }
 810 };
 811
 812 L.bounds = function (a, b) { // (Bounds) or (Point, Point) or (Point[])
 813         if (!a || a instanceof L.Bounds) {
 814                 return a;
 815         }
 816         return new L.Bounds(a, b);
 817 };
 818
 819
 820 /*
 821  * L.Transformation is an utility class to perform simple point transformations through a 2d-matrix.
 822  */
 823
 824 L.Transformation = function (a, b, c, d) {
 825         this._a = a;
 826         this._b = b;
 827         this._c = c;
 828         this._d = d;
 829 };
 830
 831 L.Transformation.prototype = {
 832         transform: function (point, scale) { // (Point, Number) -> Point
 833                 return this._transform(point.clone(), scale);
 834         },
 835
 836         // destructive transform (faster)
 837         _transform: function (point, scale) {
 838                 scale = scale || 1;
 839                 point.x = scale * (this._a * point.x + this._b);
 840                 point.y = scale * (this._c * point.y + this._d);
 841                 return point;
 842         },
 843
 844         untransform: function (point, scale) {
 845                 scale = scale || 1;
 846                 return new L.Point(
 847                         (point.x / scale - this._b) / this._a,
 848                         (point.y / scale - this._d) / this._c);
 849         }
 850 };
 851
 852
 853 /*
 854  * L.DomUtil contains various utility functions for working with DOM.
 855  */
 856
 857 L.DomUtil = {
 858         get: function (id) {
 859                 return (typeof id === 'string' ? document.getElementById(id) : id);
 860         },
 861
 862         getStyle: function (el, style) {
 863
 864                 var value = el.style[style];
 865
 866                 if (!value && el.currentStyle) {
 867                         value = el.currentStyle[style];
 868                 }
 869
 870                 if ((!value || value === 'auto') && document.defaultView) {
 871                         var css = document.defaultView.getComputedStyle(el, null);
 872                         value = css ? css[style] : null;
 873                 }
 874
 875                 return value === 'auto' ? null : value;
 876         },
 877
 878         getViewportOffset: function (element) {
 879
 880                 var top = 0,
 881                     left = 0,
 882                     el = element,
 883                     docBody = document.body,
 884                     docEl = document.documentElement,
 885                     pos;
 886
 887                 do {
 888                         top  += el.offsetTop  || 0;
 889                         left += el.offsetLeft || 0;
 890
 891                         //add borders
 892                         top += parseInt(L.DomUtil.getStyle(el, 'borderTopWidth'), 10) || 0;
 893                         left += parseInt(L.DomUtil.getStyle(el, 'borderLeftWidth'), 10) || 0;
 894
 895                         pos = L.DomUtil.getStyle(el, 'position');
 896
 897                         if (el.offsetParent === docBody && pos === 'absolute') { break; }
 898
 899                         if (pos === 'fixed') {
 900                                 top  += docBody.scrollTop  || docEl.scrollTop  || 0;
 901                                 left += docBody.scrollLeft || docEl.scrollLeft || 0;
 902                                 break;
 903                         }
 904
 905                         if (pos === 'relative' && !el.offsetLeft) {
 906                                 var width = L.DomUtil.getStyle(el, 'width'),
 907                                     maxWidth = L.DomUtil.getStyle(el, 'max-width'),
 908                                     r = el.getBoundingClientRect();
 909
 910                                 if (width !== 'none' || maxWidth !== 'none') {
 911                                         left += r.left + el.clientLeft;
 912                                 }
 913
 914                                 //calculate full y offset since we're breaking out of the loop
 915                                 top += r.top + (docBody.scrollTop  || docEl.scrollTop  || 0);
 916
 917                                 break;
 918                         }
 919
 920                         el = el.offsetParent;
 921
 922                 } while (el);
 923
 924                 el = element;
 925
 926                 do {
 927                         if (el === docBody) { break; }
 928
 929                         top  -= el.scrollTop  || 0;
 930                         left -= el.scrollLeft || 0;
 931
 932                         el = el.parentNode;
 933                 } while (el);
 934
 935                 return new L.Point(left, top);
 936         },
 937
 938         documentIsLtr: function () {
 939                 if (!L.DomUtil._docIsLtrCached) {
 940                         L.DomUtil._docIsLtrCached = true;
 941                         L.DomUtil._docIsLtr = L.DomUtil.getStyle(document.body, 'direction') === 'ltr';
 942                 }
 943                 return L.DomUtil._docIsLtr;
 944         },
 945
 946         create: function (tagName, className, container) {
 947
 948                 var el = document.createElement(tagName);
 949                 el.className = className;
 950
 951                 if (container) {
 952                         container.appendChild(el);
 953                 }
 954
 955                 return el;
 956         },
 957
 958         hasClass: function (el, name) {
 959                 if (el.classList !== undefined) {
 960                         return el.classList.contains(name);
 961                 }
 962                 var className = L.DomUtil._getClass(el);
 963                 return className.length > 0 && new RegExp('(^|\\s)' + name + '(\\s|$)').test(className);
 964         },
 965
 966         addClass: function (el, name) {
 967                 if (el.classList !== undefined) {
 968                         var classes = L.Util.splitWords(name);
 969                         for (var i = 0, len = classes.length; i < len; i++) {
 970                                 el.classList.add(classes[i]);
 971                         }
 972                 } else if (!L.DomUtil.hasClass(el, name)) {
 973                         var className = L.DomUtil._getClass(el);
 974                         L.DomUtil._setClass(el, (className ? className + ' ' : '') + name);
 975                 }
 976         },
 977
 978         removeClass: function (el, name) {
 979                 if (el.classList !== undefined) {
 980                         el.classList.remove(name);
 981                 } else {
 982                         L.DomUtil._setClass(el, L.Util.trim((' ' + L.DomUtil._getClass(el) + ' ').replace(' ' + name + ' ', ' ')));
 983                 }
 984         },
 985
 986         _setClass: function (el, name) {
 987                 if (el.className.baseVal === undefined) {
 988                         el.className = name;
 989                 } else {
 990                         // in case of SVG element
 991                         el.className.baseVal = name;
 992                 }
 993         },
 994
 995         _getClass: function (el) {
 996                 return el.className.baseVal === undefined ? el.className : el.className.baseVal;
 997         },
 998
 999         setOpacity: function (el, value) {
1000
1001                 if ('opacity' in el.style) {
1002                         el.style.opacity = value;
1003
1004                 } else if ('filter' in el.style) {
1005
1006                         var filter = false,
1007                             filterName = 'DXImageTransform.Microsoft.Alpha';
1008
1009                         // filters collection throws an error if we try to retrieve a filter that doesn't exist
1010                         try {
1011                                 filter = el.filters.item(filterName);
1012                         } catch (e) {
1013                                 // don't set opacity to 1 if we haven't already set an opacity,
1014                                 // it isn't needed and breaks transparent pngs.
1015                                 if (value === 1) { return; }
1016                         }
1017
1018                         value = Math.round(value * 100);
1019
1020                         if (filter) {
1021                                 filter.Enabled = (value !== 100);
1022                                 filter.Opacity = value;
1023                         } else {
1024                                 el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')';
1025                         }
1026                 }
1027         },
1028
1029         testProp: function (props) {
1030
1031                 var style = document.documentElement.style;
1032
1033                 for (var i = 0; i < props.length; i++) {
1034                         if (props[i] in style) {
1035                                 return props[i];
1036                         }
1037                 }
1038                 return false;
1039         },
1040
1041         getTranslateString: function (point) {
1042                 // on WebKit browsers (Chrome/Safari/iOS Safari/Android) using translate3d instead of translate
1043                 // makes animation smoother as it ensures HW accel is used. Firefox 13 doesn't care
1044                 // (same speed either way), Opera 12 doesn't support translate3d
1045
1046                 var is3d = L.Browser.webkit3d,
1047                     open = 'translate' + (is3d ? '3d' : '') + '(',
1048                     close = (is3d ? ',0' : '') + ')';
1049
1050                 return open + point.x + 'px,' + point.y + 'px' + close;
1051         },
1052
1053         getScaleString: function (scale, origin) {
1054
1055                 var preTranslateStr = L.DomUtil.getTranslateString(origin.add(origin.multiplyBy(-1 * scale))),
1056                     scaleStr = ' scale(' + scale + ') ';
1057
1058                 return preTranslateStr + scaleStr;
1059         },
1060
1061         setPosition: function (el, point, disable3D) { // (HTMLElement, Point[, Boolean])
1062
1063                 // jshint camelcase: false
1064                 el._leaflet_pos = point;
1065
1066                 if (!disable3D && L.Browser.any3d) {
1067                         el.style[L.DomUtil.TRANSFORM] =  L.DomUtil.getTranslateString(point);
1068                 } else {
1069                         el.style.left = point.x + 'px';
1070                         el.style.top = point.y + 'px';
1071                 }
1072         },
1073
1074         getPosition: function (el) {
1075                 // this method is only used for elements previously positioned using setPosition,
1076                 // so it's safe to cache the position for performance
1077
1078                 // jshint camelcase: false
1079                 return el._leaflet_pos;
1080         }
1081 };
1082
1083
1084 // prefix style property names
1085
1086 L.DomUtil.TRANSFORM = L.DomUtil.testProp(
1087         ['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']);
1088
1089 // webkitTransition comes first because some browser versions that drop vendor prefix don't do
1090 // the same for the transitionend event, in particular the Android 4.1 stock browser
1091
1092 L.DomUtil.TRANSITION = L.DomUtil.testProp(
1093         ['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']);
1094
1095 L.DomUtil.TRANSITION_END =
1096         L.DomUtil.TRANSITION === 'webkitTransition' || L.DomUtil.TRANSITION === 'OTransition' ?
1097         L.DomUtil.TRANSITION + 'End' : 'transitionend';
1098
1099 (function () {
1100     if ('onselectstart' in document) {
1101         L.extend(L.DomUtil, {
1102             disableTextSelection: function () {
1103                 L.DomEvent.on(window, 'selectstart', L.DomEvent.preventDefault);
1104             },
1105
1106             enableTextSelection: function () {
1107                 L.DomEvent.off(window, 'selectstart', L.DomEvent.preventDefault);
1108             }
1109         });
1110     } else {
1111         var userSelectProperty = L.DomUtil.testProp(
1112             ['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']);
1113
1114         L.extend(L.DomUtil, {
1115             disableTextSelection: function () {
1116                 if (userSelectProperty) {
1117                     var style = document.documentElement.style;
1118                     this._userSelect = style[userSelectProperty];
1119                     style[userSelectProperty] = 'none';
1120                 }
1121             },
1122
1123             enableTextSelection: function () {
1124                 if (userSelectProperty) {
1125                     document.documentElement.style[userSelectProperty] = this._userSelect;
1126                     delete this._userSelect;
1127                 }
1128             }
1129         });
1130     }
1131
1132         L.extend(L.DomUtil, {
1133                 disableImageDrag: function () {
1134                         L.DomEvent.on(window, 'dragstart', L.DomEvent.preventDefault);
1135                 },
1136
1137                 enableImageDrag: function () {
1138                         L.DomEvent.off(window, 'dragstart', L.DomEvent.preventDefault);
1139                 }
1140         });
1141 })();
1142
1143
1144 /*
1145  * L.LatLng represents a geographical point with latitude and longitude coordinates.
1146  */
1147
1148 L.LatLng = function (lat, lng, alt) { // (Number, Number, Number)
1149         lat = parseFloat(lat);
1150         lng = parseFloat(lng);
1151
1152         if (isNaN(lat) || isNaN(lng)) {
1153                 throw new Error('Invalid LatLng object: (' + lat + ', ' + lng + ')');
1154         }
1155
1156         this.lat = lat;
1157         this.lng = lng;
1158
1159         if (alt !== undefined) {
1160                 this.alt = parseFloat(alt);
1161         }
1162 };
1163
1164 L.extend(L.LatLng, {
1165         DEG_TO_RAD: Math.PI / 180,
1166         RAD_TO_DEG: 180 / Math.PI,
1167         MAX_MARGIN: 1.0E-9 // max margin of error for the "equals" check
1168 });
1169
1170 L.LatLng.prototype = {
1171         equals: function (obj) { // (LatLng) -> Boolean
1172                 if (!obj) { return false; }
1173
1174                 obj = L.latLng(obj);
1175
1176                 var margin = Math.max(
1177                         Math.abs(this.lat - obj.lat),
1178                         Math.abs(this.lng - obj.lng));
1179
1180                 return margin <= L.LatLng.MAX_MARGIN;
1181         },
1182
1183         toString: function (precision) { // (Number) -> String
1184                 return 'LatLng(' +
1185                         L.Util.formatNum(this.lat, precision) + ', ' +
1186                         L.Util.formatNum(this.lng, precision) + ')';
1187         },
1188
1189         // Haversine distance formula, see http://en.wikipedia.org/wiki/Haversine_formula
1190         // TODO move to projection code, LatLng shouldn't know about Earth
1191         distanceTo: function (other) { // (LatLng) -> Number
1192                 other = L.latLng(other);
1193
1194                 var R = 6378137, // earth radius in meters
1195                     d2r = L.LatLng.DEG_TO_RAD,
1196                     dLat = (other.lat - this.lat) * d2r,
1197                     dLon = (other.lng - this.lng) * d2r,
1198                     lat1 = this.lat * d2r,
1199                     lat2 = other.lat * d2r,
1200                     sin1 = Math.sin(dLat / 2),
1201                     sin2 = Math.sin(dLon / 2);
1202
1203                 var a = sin1 * sin1 + sin2 * sin2 * Math.cos(lat1) * Math.cos(lat2);
1204
1205                 return R * 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
1206         },
1207
1208         wrap: function (a, b) { // (Number, Number) -> LatLng
1209                 var lng = this.lng;
1210
1211                 a = a || -180;
1212                 b = b ||  180;
1213
1214                 lng = (lng + b) % (b - a) + (lng < a || lng === b ? b : a);
1215
1216                 return new L.LatLng(this.lat, lng);
1217         }
1218 };
1219
1220 L.latLng = function (a, b) { // (LatLng) or ([Number, Number]) or (Number, Number)
1221         if (a instanceof L.LatLng) {
1222                 return a;
1223         }
1224         if (L.Util.isArray(a)) {
1225                 if (typeof a[0] === 'number' || typeof a[0] === 'string') {
1226                         return new L.LatLng(a[0], a[1], a[2]);
1227                 } else {
1228                         return null;
1229                 }
1230         }
1231         if (a === undefined || a === null) {
1232                 return a;
1233         }
1234         if (typeof a === 'object' && 'lat' in a) {
1235                 return new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon);
1236         }
1237         if (b === undefined) {
1238                 return null;
1239         }
1240         return new L.LatLng(a, b);
1241 };
1242
1243
1244
1245 /*
1246  * L.LatLngBounds represents a rectangular area on the map in geographical coordinates.
1247  */
1248
1249 L.LatLngBounds = function (southWest, northEast) { // (LatLng, LatLng) or (LatLng[])
1250         if (!southWest) { return; }
1251
1252         var latlngs = northEast ? [southWest, northEast] : southWest;
1253
1254         for (var i = 0, len = latlngs.length; i < len; i++) {
1255                 this.extend(latlngs[i]);
1256         }
1257 };
1258
1259 L.LatLngBounds.prototype = {
1260         // extend the bounds to contain the given point or bounds
1261         extend: function (obj) { // (LatLng) or (LatLngBounds)
1262                 if (!obj) { return this; }
1263
1264                 var latLng = L.latLng(obj);
1265                 if (latLng !== null) {
1266                         obj = latLng;
1267                 } else {
1268                         obj = L.latLngBounds(obj);
1269                 }
1270
1271                 if (obj instanceof L.LatLng) {
1272                         if (!this._southWest && !this._northEast) {
1273                                 this._southWest = new L.LatLng(obj.lat, obj.lng);
1274                                 this._northEast = new L.LatLng(obj.lat, obj.lng);
1275                         } else {
1276                                 this._southWest.lat = Math.min(obj.lat, this._southWest.lat);
1277                                 this._southWest.lng = Math.min(obj.lng, this._southWest.lng);
1278
1279                                 this._northEast.lat = Math.max(obj.lat, this._northEast.lat);
1280                                 this._northEast.lng = Math.max(obj.lng, this._northEast.lng);
1281                         }
1282                 } else if (obj instanceof L.LatLngBounds) {
1283                         this.extend(obj._southWest);
1284                         this.extend(obj._northEast);
1285                 }
1286                 return this;
1287         },
1288
1289         // extend the bounds by a percentage
1290         pad: function (bufferRatio) { // (Number) -> LatLngBounds
1291                 var sw = this._southWest,
1292                     ne = this._northEast,
1293                     heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio,
1294                     widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio;
1295
1296                 return new L.LatLngBounds(
1297                         new L.LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer),
1298                         new L.LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer));
1299         },
1300
1301         getCenter: function () { // -> LatLng
1302                 return new L.LatLng(
1303                         (this._southWest.lat + this._northEast.lat) / 2,
1304                         (this._southWest.lng + this._northEast.lng) / 2);
1305         },
1306
1307         getSouthWest: function () {
1308                 return this._southWest;
1309         },
1310
1311         getNorthEast: function () {
1312                 return this._northEast;
1313         },
1314
1315         getNorthWest: function () {
1316                 return new L.LatLng(this.getNorth(), this.getWest());
1317         },
1318
1319         getSouthEast: function () {
1320                 return new L.LatLng(this.getSouth(), this.getEast());
1321         },
1322
1323         getWest: function () {
1324                 return this._southWest.lng;
1325         },
1326
1327         getSouth: function () {
1328                 return this._southWest.lat;
1329         },
1330
1331         getEast: function () {
1332                 return this._northEast.lng;
1333         },
1334
1335         getNorth: function () {
1336                 return this._northEast.lat;
1337         },
1338
1339         contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean
1340                 if (typeof obj[0] === 'number' || obj instanceof L.LatLng) {
1341                         obj = L.latLng(obj);
1342                 } else {
1343                         obj = L.latLngBounds(obj);
1344                 }
1345
1346                 var sw = this._southWest,
1347                     ne = this._northEast,
1348                     sw2, ne2;
1349
1350                 if (obj instanceof L.LatLngBounds) {
1351                         sw2 = obj.getSouthWest();
1352                         ne2 = obj.getNorthEast();
1353                 } else {
1354                         sw2 = ne2 = obj;
1355                 }
1356
1357                 return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) &&
1358                        (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng);
1359         },
1360
1361         intersects: function (bounds) { // (LatLngBounds)
1362                 bounds = L.latLngBounds(bounds);
1363
1364                 var sw = this._southWest,
1365                     ne = this._northEast,
1366                     sw2 = bounds.getSouthWest(),
1367                     ne2 = bounds.getNorthEast(),
1368
1369                     latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat),
1370                     lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng);
1371
1372                 return latIntersects && lngIntersects;
1373         },
1374
1375         toBBoxString: function () {
1376                 return [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(',');
1377         },
1378
1379         equals: function (bounds) { // (LatLngBounds)
1380                 if (!bounds) { return false; }
1381
1382                 bounds = L.latLngBounds(bounds);
1383
1384                 return this._southWest.equals(bounds.getSouthWest()) &&
1385                        this._northEast.equals(bounds.getNorthEast());
1386         },
1387
1388         isValid: function () {
1389                 return !!(this._southWest && this._northEast);
1390         }
1391 };
1392
1393 //TODO International date line?
1394
1395 L.latLngBounds = function (a, b) { // (LatLngBounds) or (LatLng, LatLng)
1396         if (!a || a instanceof L.LatLngBounds) {
1397                 return a;
1398         }
1399         return new L.LatLngBounds(a, b);
1400 };
1401
1402
1403 /*
1404  * L.Projection contains various geographical projections used by CRS classes.
1405  */
1406
1407 L.Projection = {};
1408
1409
1410 /*
1411  * Spherical Mercator is the most popular map projection, used by EPSG:3857 CRS used by default.
1412  */
1413
1414 L.Projection.SphericalMercator = {
1415         MAX_LATITUDE: 85.0511287798,
1416
1417         project: function (latlng) { // (LatLng) -> Point
1418                 var d = L.LatLng.DEG_TO_RAD,
1419                     max = this.MAX_LATITUDE,
1420                     lat = Math.max(Math.min(max, latlng.lat), -max),
1421                     x = latlng.lng * d,
1422                     y = lat * d;
1423
1424                 y = Math.log(Math.tan((Math.PI / 4) + (y / 2)));
1425
1426                 return new L.Point(x, y);
1427         },
1428
1429         unproject: function (point) { // (Point, Boolean) -> LatLng
1430                 var d = L.LatLng.RAD_TO_DEG,
1431                     lng = point.x * d,
1432                     lat = (2 * Math.atan(Math.exp(point.y)) - (Math.PI / 2)) * d;
1433
1434                 return new L.LatLng(lat, lng);
1435         }
1436 };
1437
1438
1439 /*
1440  * Simple equirectangular (Plate Carree) projection, used by CRS like EPSG:4326 and Simple.
1441  */
1442
1443 L.Projection.LonLat = {
1444         project: function (latlng) {
1445                 return new L.Point(latlng.lng, latlng.lat);
1446         },
1447
1448         unproject: function (point) {
1449                 return new L.LatLng(point.y, point.x);
1450         }
1451 };
1452
1453
1454 /*
1455  * L.CRS is a base object for all defined CRS (Coordinate Reference Systems) in Leaflet.
1456  */
1457
1458 L.CRS = {
1459         latLngToPoint: function (latlng, zoom) { // (LatLng, Number) -> Point
1460                 var projectedPoint = this.projection.project(latlng),
1461                     scale = this.scale(zoom);
1462
1463                 return this.transformation._transform(projectedPoint, scale);
1464         },
1465
1466         pointToLatLng: function (point, zoom) { // (Point, Number[, Boolean]) -> LatLng
1467                 var scale = this.scale(zoom),
1468                     untransformedPoint = this.transformation.untransform(point, scale);
1469
1470                 return this.projection.unproject(untransformedPoint);
1471         },
1472
1473         project: function (latlng) {
1474                 return this.projection.project(latlng);
1475         },
1476
1477         scale: function (zoom) {
1478                 return 256 * Math.pow(2, zoom);
1479         },
1480
1481         getSize: function (zoom) {
1482                 var s = this.scale(zoom);
1483                 return L.point(s, s);
1484         }
1485 };
1486
1487
1488 /*
1489  * A simple CRS that can be used for flat non-Earth maps like panoramas or game maps.
1490  */
1491
1492 L.CRS.Simple = L.extend({}, L.CRS, {
1493         projection: L.Projection.LonLat,
1494         transformation: new L.Transformation(1, 0, -1, 0),
1495
1496         scale: function (zoom) {
1497                 return Math.pow(2, zoom);
1498         }
1499 });
1500
1501
1502 /*
1503  * L.CRS.EPSG3857 (Spherical Mercator) is the most common CRS for web mapping
1504  * and is used by Leaflet by default.
1505  */
1506
1507 L.CRS.EPSG3857 = L.extend({}, L.CRS, {
1508         code: 'EPSG:3857',
1509
1510         projection: L.Projection.SphericalMercator,
1511         transformation: new L.Transformation(0.5 / Math.PI, 0.5, -0.5 / Math.PI, 0.5),
1512
1513         project: function (latlng) { // (LatLng) -> Point
1514                 var projectedPoint = this.projection.project(latlng),
1515                     earthRadius = 6378137;
1516                 return projectedPoint.multiplyBy(earthRadius);
1517         }
1518 });
1519
1520 L.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, {
1521         code: 'EPSG:900913'
1522 });
1523
1524
1525 /*
1526  * L.CRS.EPSG4326 is a CRS popular among advanced GIS specialists.
1527  */
1528
1529 L.CRS.EPSG4326 = L.extend({}, L.CRS, {
1530         code: 'EPSG:4326',
1531
1532         projection: L.Projection.LonLat,
1533         transformation: new L.Transformation(1 / 360, 0.5, -1 / 360, 0.5)
1534 });
1535
1536
1537 /*
1538  * L.Map is the central class of the API - it is used to create a map.
1539  */
1540
1541 L.Map = L.Class.extend({
1542
1543         includes: L.Mixin.Events,
1544
1545         options: {
1546                 crs: L.CRS.EPSG3857,
1547
1548                 /*
1549                 center: LatLng,
1550                 zoom: Number,
1551                 layers: Array,
1552                 */
1553
1554                 fadeAnimation: L.DomUtil.TRANSITION && !L.Browser.android23,
1555                 trackResize: true,
1556                 markerZoomAnimation: L.DomUtil.TRANSITION && L.Browser.any3d
1557         },
1558
1559         initialize: function (id, options) { // (HTMLElement or String, Object)
1560                 options = L.setOptions(this, options);
1561
1562
1563                 this._initContainer(id);
1564                 this._initLayout();
1565
1566                 // hack for https://github.com/Leaflet/Leaflet/issues/1980
1567                 this._onResize = L.bind(this._onResize, this);
1568
1569                 this._initEvents();
1570
1571                 if (options.maxBounds) {
1572                         this.setMaxBounds(options.maxBounds);
1573                 }
1574
1575                 if (options.center && options.zoom !== undefined) {
1576                         this.setView(L.latLng(options.center), options.zoom, {reset: true});
1577                 }
1578
1579                 this._handlers = [];
1580
1581                 this._layers = {};
1582                 this._zoomBoundLayers = {};
1583                 this._tileLayersNum = 0;
1584
1585                 this.callInitHooks();
1586
1587                 this._addLayers(options.layers);
1588         },
1589
1590
1591         // public methods that modify map state
1592
1593         // replaced by animation-powered implementation in Map.PanAnimation.js
1594         setView: function (center, zoom) {
1595                 zoom = zoom === undefined ? this.getZoom() : zoom;
1596                 this._resetView(L.latLng(center), this._limitZoom(zoom));
1597                 return this;
1598         },
1599
1600         setZoom: function (zoom, options) {
1601                 if (!this._loaded) {
1602                         this._zoom = this._limitZoom(zoom);
1603                         return this;
1604                 }
1605                 return this.setView(this.getCenter(), zoom, {zoom: options});
1606         },
1607
1608         zoomIn: function (delta, options) {
1609                 return this.setZoom(this._zoom + (delta || 1), options);
1610         },
1611
1612         zoomOut: function (delta, options) {
1613                 return this.setZoom(this._zoom - (delta || 1), options);
1614         },
1615
1616         setZoomAround: function (latlng, zoom, options) {
1617                 var scale = this.getZoomScale(zoom),
1618                     viewHalf = this.getSize().divideBy(2),
1619                     containerPoint = latlng instanceof L.Point ? latlng : this.latLngToContainerPoint(latlng),
1620
1621                     centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale),
1622                     newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset));
1623
1624                 return this.setView(newCenter, zoom, {zoom: options});
1625         },
1626
1627         fitBounds: function (bounds, options) {
1628
1629                 options = options || {};
1630                 bounds = bounds.getBounds ? bounds.getBounds() : L.latLngBounds(bounds);
1631
1632                 var paddingTL = L.point(options.paddingTopLeft || options.padding || [0, 0]),
1633                     paddingBR = L.point(options.paddingBottomRight || options.padding || [0, 0]),
1634
1635                     zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR)),
1636                     paddingOffset = paddingBR.subtract(paddingTL).divideBy(2),
1637
1638                     swPoint = this.project(bounds.getSouthWest(), zoom),
1639                     nePoint = this.project(bounds.getNorthEast(), zoom),
1640                     center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom);
1641
1642                 zoom = options && options.maxZoom ? Math.min(options.maxZoom, zoom) : zoom;
1643
1644                 return this.setView(center, zoom, options);
1645         },
1646
1647         fitWorld: function (options) {
1648                 return this.fitBounds([[-90, -180], [90, 180]], options);
1649         },
1650
1651         panTo: function (center, options) { // (LatLng)
1652                 return this.setView(center, this._zoom, {pan: options});
1653         },
1654
1655         panBy: function (offset) { // (Point)
1656                 // replaced with animated panBy in Map.PanAnimation.js
1657                 this.fire('movestart');
1658
1659                 this._rawPanBy(L.point(offset));
1660
1661                 this.fire('move');
1662                 return this.fire('moveend');
1663         },
1664
1665         setMaxBounds: function (bounds) {
1666                 bounds = L.latLngBounds(bounds);
1667
1668                 this.options.maxBounds = bounds;
1669
1670                 if (!bounds) {
1671                         return this.off('moveend', this._panInsideMaxBounds, this);
1672                 }
1673
1674                 if (this._loaded) {
1675                         this._panInsideMaxBounds();
1676                 }
1677
1678                 return this.on('moveend', this._panInsideMaxBounds, this);
1679         },
1680
1681         panInsideBounds: function (bounds, options) {
1682                 var center = this.getCenter(),
1683                         newCenter = this._limitCenter(center, this._zoom, bounds);
1684
1685                 if (center.equals(newCenter)) { return this; }
1686
1687                 return this.panTo(newCenter, options);
1688         },
1689
1690         addLayer: function (layer) {
1691                 // TODO method is too big, refactor
1692
1693                 var id = L.stamp(layer);
1694
1695                 if (this._layers[id]) { return this; }
1696
1697                 this._layers[id] = layer;
1698
1699                 // TODO getMaxZoom, getMinZoom in ILayer (instead of options)
1700                 if (layer.options && (!isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom))) {
1701                         this._zoomBoundLayers[id] = layer;
1702                         this._updateZoomLevels();
1703                 }
1704
1705                 // TODO looks ugly, refactor!!!
1706                 if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) {
1707                         this._tileLayersNum++;
1708                         this._tileLayersToLoad++;
1709                         layer.on('load', this._onTileLayerLoad, this);
1710                 }
1711
1712                 if (this._loaded) {
1713                         this._layerAdd(layer);
1714                 }
1715
1716                 return this;
1717         },
1718
1719         removeLayer: function (layer) {
1720                 var id = L.stamp(layer);
1721
1722                 if (!this._layers[id]) { return this; }
1723
1724                 if (this._loaded) {
1725                         layer.onRemove(this);
1726                 }
1727
1728                 delete this._layers[id];
1729
1730                 if (this._loaded) {
1731                         this.fire('layerremove', {layer: layer});
1732                 }
1733
1734                 if (this._zoomBoundLayers[id]) {
1735                         delete this._zoomBoundLayers[id];
1736                         this._updateZoomLevels();
1737                 }
1738
1739                 // TODO looks ugly, refactor
1740                 if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) {
1741                         this._tileLayersNum--;
1742                         this._tileLayersToLoad--;
1743                         layer.off('load', this._onTileLayerLoad, this);
1744                 }
1745
1746                 return this;
1747         },
1748
1749         hasLayer: function (layer) {
1750                 if (!layer) { return false; }
1751
1752                 return (L.stamp(layer) in this._layers);
1753         },
1754
1755         eachLayer: function (method, context) {
1756                 for (var i in this._layers) {
1757                         method.call(context, this._layers[i]);
1758                 }
1759                 return this;
1760         },
1761
1762         invalidateSize: function (options) {
1763                 if (!this._loaded) { return this; }
1764
1765                 options = L.extend({
1766                         animate: false,
1767                         pan: true
1768                 }, options === true ? {animate: true} : options);
1769
1770                 var oldSize = this.getSize();
1771                 this._sizeChanged = true;
1772                 this._initialCenter = null;
1773
1774                 var newSize = this.getSize(),
1775                     oldCenter = oldSize.divideBy(2).round(),
1776                     newCenter = newSize.divideBy(2).round(),
1777                     offset = oldCenter.subtract(newCenter);
1778
1779                 if (!offset.x && !offset.y) { return this; }
1780
1781                 if (options.animate && options.pan) {
1782                         this.panBy(offset);
1783
1784                 } else {
1785                         if (options.pan) {
1786                                 this._rawPanBy(offset);
1787                         }
1788
1789                         this.fire('move');
1790
1791                         if (options.debounceMoveend) {
1792                                 clearTimeout(this._sizeTimer);
1793                                 this._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200);
1794                         } else {
1795                                 this.fire('moveend');
1796                         }
1797                 }
1798
1799                 return this.fire('resize', {
1800                         oldSize: oldSize,
1801                         newSize: newSize
1802                 });
1803         },
1804
1805         // TODO handler.addTo
1806         addHandler: function (name, HandlerClass) {
1807                 if (!HandlerClass) { return this; }
1808
1809                 var handler = this[name] = new HandlerClass(this);
1810
1811                 this._handlers.push(handler);
1812
1813                 if (this.options[name]) {
1814                         handler.enable();
1815                 }
1816
1817                 return this;
1818         },
1819
1820         remove: function () {
1821                 if (this._loaded) {
1822                         this.fire('unload');
1823                 }
1824
1825                 this._initEvents('off');
1826
1827                 try {
1828                         // throws error in IE6-8
1829                         delete this._container._leaflet;
1830                 } catch (e) {
1831                         this._container._leaflet = undefined;
1832                 }
1833
1834                 this._clearPanes();
1835                 if (this._clearControlPos) {
1836                         this._clearControlPos();
1837                 }
1838
1839                 this._clearHandlers();
1840
1841                 return this;
1842         },
1843
1844
1845         // public methods for getting map state
1846
1847         getCenter: function () { // (Boolean) -> LatLng
1848                 this._checkIfLoaded();
1849
1850                 if (this._initialCenter && !this._moved()) {
1851                         return this._initialCenter;
1852                 }
1853                 return this.layerPointToLatLng(this._getCenterLayerPoint());
1854         },
1855
1856         getZoom: function () {
1857                 return this._zoom;
1858         },
1859
1860         getBounds: function () {
1861                 var bounds = this.getPixelBounds(),
1862                     sw = this.unproject(bounds.getBottomLeft()),
1863                     ne = this.unproject(bounds.getTopRight());
1864
1865                 return new L.LatLngBounds(sw, ne);
1866         },
1867
1868         getMinZoom: function () {
1869                 return this.options.minZoom === undefined ?
1870                         (this._layersMinZoom === undefined ? 0 : this._layersMinZoom) :
1871                         this.options.minZoom;
1872         },
1873
1874         getMaxZoom: function () {
1875                 return this.options.maxZoom === undefined ?
1876                         (this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) :
1877                         this.options.maxZoom;
1878         },
1879
1880         getBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number
1881                 bounds = L.latLngBounds(bounds);
1882
1883                 var zoom = this.getMinZoom() - (inside ? 1 : 0),
1884                     maxZoom = this.getMaxZoom(),
1885                     size = this.getSize(),
1886
1887                     nw = bounds.getNorthWest(),
1888                     se = bounds.getSouthEast(),
1889
1890                     zoomNotFound = true,
1891                     boundsSize;
1892
1893                 padding = L.point(padding || [0, 0]);
1894
1895                 do {
1896                         zoom++;
1897                         boundsSize = this.project(se, zoom).subtract(this.project(nw, zoom)).add(padding);
1898                         zoomNotFound = !inside ? size.contains(boundsSize) : boundsSize.x < size.x || boundsSize.y < size.y;
1899
1900                 } while (zoomNotFound && zoom <= maxZoom);
1901
1902                 if (zoomNotFound && inside) {
1903                         return null;
1904                 }
1905
1906                 return inside ? zoom : zoom - 1;
1907         },
1908
1909         getSize: function () {
1910                 if (!this._size || this._sizeChanged) {
1911                         this._size = new L.Point(
1912                                 this._container.clientWidth,
1913                                 this._container.clientHeight);
1914
1915                         this._sizeChanged = false;
1916                 }
1917                 return this._size.clone();
1918         },
1919
1920         getPixelBounds: function () {
1921                 var topLeftPoint = this._getTopLeftPoint();
1922                 return new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize()));
1923         },
1924
1925         getPixelOrigin: function () {
1926                 this._checkIfLoaded();
1927                 return this._initialTopLeftPoint;
1928         },
1929
1930         getPanes: function () {
1931                 return this._panes;
1932         },
1933
1934         getContainer: function () {
1935                 return this._container;
1936         },
1937
1938
1939         // TODO replace with universal implementation after refactoring projections
1940
1941         getZoomScale: function (toZoom) {
1942                 var crs = this.options.crs;
1943                 return crs.scale(toZoom) / crs.scale(this._zoom);
1944         },
1945
1946         getScaleZoom: function (scale) {
1947                 return this._zoom + (Math.log(scale) / Math.LN2);
1948         },
1949
1950
1951         // conversion methods
1952
1953         project: function (latlng, zoom) { // (LatLng[, Number]) -> Point
1954                 zoom = zoom === undefined ? this._zoom : zoom;
1955                 return this.options.crs.latLngToPoint(L.latLng(latlng), zoom);
1956         },
1957
1958         unproject: function (point, zoom) { // (Point[, Number]) -> LatLng
1959                 zoom = zoom === undefined ? this._zoom : zoom;
1960                 return this.options.crs.pointToLatLng(L.point(point), zoom);
1961         },
1962
1963         layerPointToLatLng: function (point) { // (Point)
1964                 var projectedPoint = L.point(point).add(this.getPixelOrigin());
1965                 return this.unproject(projectedPoint);
1966         },
1967
1968         latLngToLayerPoint: function (latlng) { // (LatLng)
1969                 var projectedPoint = this.project(L.latLng(latlng))._round();
1970                 return projectedPoint._subtract(this.getPixelOrigin());
1971         },
1972
1973         containerPointToLayerPoint: function (point) { // (Point)
1974                 return L.point(point).subtract(this._getMapPanePos());
1975         },
1976
1977         layerPointToContainerPoint: function (point) { // (Point)
1978                 return L.point(point).add(this._getMapPanePos());
1979         },
1980
1981         containerPointToLatLng: function (point) {
1982                 var layerPoint = this.containerPointToLayerPoint(L.point(point));
1983                 return this.layerPointToLatLng(layerPoint);
1984         },
1985
1986         latLngToContainerPoint: function (latlng) {
1987                 return this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng)));
1988         },
1989
1990         mouseEventToContainerPoint: function (e) { // (MouseEvent)
1991                 return L.DomEvent.getMousePosition(e, this._container);
1992         },
1993
1994         mouseEventToLayerPoint: function (e) { // (MouseEvent)
1995                 return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e));
1996         },
1997
1998         mouseEventToLatLng: function (e) { // (MouseEvent)
1999                 return this.layerPointToLatLng(this.mouseEventToLayerPoint(e));
2000         },
2001
2002
2003         // map initialization methods
2004
2005         _initContainer: function (id) {
2006                 var container = this._container = L.DomUtil.get(id);
2007
2008                 if (!container) {
2009                         throw new Error('Map container not found.');
2010                 } else if (container._leaflet) {
2011                         throw new Error('Map container is already initialized.');
2012                 }
2013
2014                 container._leaflet = true;
2015         },
2016
2017         _initLayout: function () {
2018                 var container = this._container;
2019
2020                 L.DomUtil.addClass(container, 'leaflet-container' +
2021                         (L.Browser.touch ? ' leaflet-touch' : '') +
2022                         (L.Browser.retina ? ' leaflet-retina' : '') +
2023                         (L.Browser.ielt9 ? ' leaflet-oldie' : '') +
2024                         (this.options.fadeAnimation ? ' leaflet-fade-anim' : ''));
2025
2026                 var position = L.DomUtil.getStyle(container, 'position');
2027
2028                 if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') {
2029                         container.style.position = 'relative';
2030                 }
2031
2032                 this._initPanes();
2033
2034                 if (this._initControlPos) {
2035                         this._initControlPos();
2036                 }
2037         },
2038
2039         _initPanes: function () {
2040                 var panes = this._panes = {};
2041
2042                 this._mapPane = panes.mapPane = this._createPane('leaflet-map-pane', this._container);
2043
2044                 this._tilePane = panes.tilePane = this._createPane('leaflet-tile-pane', this._mapPane);
2045                 panes.objectsPane = this._createPane('leaflet-objects-pane', this._mapPane);
2046                 panes.shadowPane = this._createPane('leaflet-shadow-pane');
2047                 panes.overlayPane = this._createPane('leaflet-overlay-pane');
2048                 panes.markerPane = this._createPane('leaflet-marker-pane');
2049                 panes.popupPane = this._createPane('leaflet-popup-pane');
2050
2051                 var zoomHide = ' leaflet-zoom-hide';
2052
2053                 if (!this.options.markerZoomAnimation) {
2054                         L.DomUtil.addClass(panes.markerPane, zoomHide);
2055                         L.DomUtil.addClass(panes.shadowPane, zoomHide);
2056                         L.DomUtil.addClass(panes.popupPane, zoomHide);
2057                 }
2058         },
2059
2060         _createPane: function (className, container) {
2061                 return L.DomUtil.create('div', className, container || this._panes.objectsPane);
2062         },
2063
2064         _clearPanes: function () {
2065                 this._container.removeChild(this._mapPane);
2066         },
2067
2068         _addLayers: function (layers) {
2069                 layers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : [];
2070
2071                 for (var i = 0, len = layers.length; i < len; i++) {
2072                         this.addLayer(layers[i]);
2073                 }
2074         },
2075
2076
2077         // private methods that modify map state
2078
2079         _resetView: function (center, zoom, preserveMapOffset, afterZoomAnim) {
2080
2081                 var zoomChanged = (this._zoom !== zoom);
2082
2083                 if (!afterZoomAnim) {
2084                         this.fire('movestart');
2085
2086                         if (zoomChanged) {
2087                                 this.fire('zoomstart');
2088                         }
2089                 }
2090
2091                 this._zoom = zoom;
2092                 this._initialCenter = center;
2093
2094                 this._initialTopLeftPoint = this._getNewTopLeftPoint(center);
2095
2096                 if (!preserveMapOffset) {
2097                         L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));
2098                 } else {
2099                         this._initialTopLeftPoint._add(this._getMapPanePos());
2100                 }
2101
2102                 this._tileLayersToLoad = this._tileLayersNum;
2103
2104                 var loading = !this._loaded;
2105                 this._loaded = true;
2106
2107                 this.fire('viewreset', {hard: !preserveMapOffset});
2108
2109                 if (loading) {
2110                         this.fire('load');
2111                         this.eachLayer(this._layerAdd, this);
2112                 }
2113
2114                 this.fire('move');
2115
2116                 if (zoomChanged || afterZoomAnim) {
2117                         this.fire('zoomend');
2118                 }
2119
2120                 this.fire('moveend', {hard: !preserveMapOffset});
2121         },
2122
2123         _rawPanBy: function (offset) {
2124                 L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset));
2125         },
2126
2127         _getZoomSpan: function () {
2128                 return this.getMaxZoom() - this.getMinZoom();
2129         },
2130
2131         _updateZoomLevels: function () {
2132                 var i,
2133                         minZoom = Infinity,
2134                         maxZoom = -Infinity,
2135                         oldZoomSpan = this._getZoomSpan();
2136
2137                 for (i in this._zoomBoundLayers) {
2138                         var layer = this._zoomBoundLayers[i];
2139                         if (!isNaN(layer.options.minZoom)) {
2140                                 minZoom = Math.min(minZoom, layer.options.minZoom);
2141                         }
2142                         if (!isNaN(layer.options.maxZoom)) {
2143                                 maxZoom = Math.max(maxZoom, layer.options.maxZoom);
2144                         }
2145                 }
2146
2147                 if (i === undefined) { // we have no tilelayers
2148                         this._layersMaxZoom = this._layersMinZoom = undefined;
2149                 } else {
2150                         this._layersMaxZoom = maxZoom;
2151                         this._layersMinZoom = minZoom;
2152                 }
2153
2154                 if (oldZoomSpan !== this._getZoomSpan()) {
2155                         this.fire('zoomlevelschange');
2156                 }
2157         },
2158
2159         _panInsideMaxBounds: function () {
2160                 this.panInsideBounds(this.options.maxBounds);
2161         },
2162
2163         _checkIfLoaded: function () {
2164                 if (!this._loaded) {
2165                         throw new Error('Set map center and zoom first.');
2166                 }
2167         },
2168
2169         // map events
2170
2171         _initEvents: function (onOff) {
2172                 if (!L.DomEvent) { return; }
2173
2174                 onOff = onOff || 'on';
2175
2176                 L.DomEvent[onOff](this._container, 'click', this._onMouseClick, this);
2177
2178                 var events = ['dblclick', 'mousedown', 'mouseup', 'mouseenter',
2179                               'mouseleave', 'mousemove', 'contextmenu'],
2180                     i, len;
2181
2182                 for (i = 0, len = events.length; i < len; i++) {
2183                         L.DomEvent[onOff](this._container, events[i], this._fireMouseEvent, this);
2184                 }
2185
2186                 if (this.options.trackResize) {
2187                         L.DomEvent[onOff](window, 'resize', this._onResize, this);
2188                 }
2189         },
2190
2191         _onResize: function () {
2192                 L.Util.cancelAnimFrame(this._resizeRequest);
2193                 this._resizeRequest = L.Util.requestAnimFrame(
2194                         function () { this.invalidateSize({debounceMoveend: true}); }, this, false, this._container);
2195         },
2196
2197         _onMouseClick: function (e) {
2198                 if (!this._loaded || (!e._simulated &&
2199                         ((this.dragging && this.dragging.moved()) ||
2200                          (this.boxZoom  && this.boxZoom.moved()))) ||
2201                             L.DomEvent._skipped(e)) { return; }
2202
2203                 this.fire('preclick');
2204                 this._fireMouseEvent(e);
2205         },
2206
2207         _fireMouseEvent: function (e) {
2208                 if (!this._loaded || L.DomEvent._skipped(e)) { return; }
2209
2210                 var type = e.type;
2211
2212                 type = (type === 'mouseenter' ? 'mouseover' : (type === 'mouseleave' ? 'mouseout' : type));
2213
2214                 if (!this.hasEventListeners(type)) { return; }
2215
2216                 if (type === 'contextmenu') {
2217                         L.DomEvent.preventDefault(e);
2218                 }
2219
2220                 var containerPoint = this.mouseEventToContainerPoint(e),
2221                     layerPoint = this.containerPointToLayerPoint(containerPoint),
2222                     latlng = this.layerPointToLatLng(layerPoint);
2223
2224                 this.fire(type, {
2225                         latlng: latlng,
2226                         layerPoint: layerPoint,
2227                         containerPoint: containerPoint,
2228                         originalEvent: e
2229                 });
2230         },
2231
2232         _onTileLayerLoad: function () {
2233                 this._tileLayersToLoad--;
2234                 if (this._tileLayersNum && !this._tileLayersToLoad) {
2235                         this.fire('tilelayersload');
2236                 }
2237         },
2238
2239         _clearHandlers: function () {
2240                 for (var i = 0, len = this._handlers.length; i < len; i++) {
2241                         this._handlers[i].disable();
2242                 }
2243         },
2244
2245         whenReady: function (callback, context) {
2246                 if (this._loaded) {
2247                         callback.call(context || this, this);
2248                 } else {
2249                         this.on('load', callback, context);
2250                 }
2251                 return this;
2252         },
2253
2254         _layerAdd: function (layer) {
2255                 layer.onAdd(this);
2256                 this.fire('layeradd', {layer: layer});
2257         },
2258
2259
2260         // private methods for getting map state
2261
2262         _getMapPanePos: function () {
2263                 return L.DomUtil.getPosition(this._mapPane);
2264         },
2265
2266         _moved: function () {
2267                 var pos = this._getMapPanePos();
2268                 return pos && !pos.equals([0, 0]);
2269         },
2270
2271         _getTopLeftPoint: function () {
2272                 return this.getPixelOrigin().subtract(this._getMapPanePos());
2273         },
2274
2275         _getNewTopLeftPoint: function (center, zoom) {
2276                 var viewHalf = this.getSize()._divideBy(2);
2277                 // TODO round on display, not calculation to increase precision?
2278                 return this.project(center, zoom)._subtract(viewHalf)._round();
2279         },
2280
2281         _latLngToNewLayerPoint: function (latlng, newZoom, newCenter) {
2282                 var topLeft = this._getNewTopLeftPoint(newCenter, newZoom).add(this._getMapPanePos());
2283                 return this.project(latlng, newZoom)._subtract(topLeft);
2284         },
2285
2286         // layer point of the current center
2287         _getCenterLayerPoint: function () {
2288                 return this.containerPointToLayerPoint(this.getSize()._divideBy(2));
2289         },
2290
2291         // offset of the specified place to the current center in pixels
2292         _getCenterOffset: function (latlng) {
2293                 return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint());
2294         },
2295
2296         // adjust center for view to get inside bounds
2297         _limitCenter: function (center, zoom, bounds) {
2298
2299                 if (!bounds) { return center; }
2300
2301                 var centerPoint = this.project(center, zoom),
2302                     viewHalf = this.getSize().divideBy(2),
2303                     viewBounds = new L.Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)),
2304                     offset = this._getBoundsOffset(viewBounds, bounds, zoom);
2305
2306                 return this.unproject(centerPoint.add(offset), zoom);
2307         },
2308
2309         // adjust offset for view to get inside bounds
2310         _limitOffset: function (offset, bounds) {
2311                 if (!bounds) { return offset; }
2312
2313                 var viewBounds = this.getPixelBounds(),
2314                     newBounds = new L.Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset));
2315
2316                 return offset.add(this._getBoundsOffset(newBounds, bounds));
2317         },
2318
2319         // returns offset needed for pxBounds to get inside maxBounds at a specified zoom
2320         _getBoundsOffset: function (pxBounds, maxBounds, zoom) {
2321                 var nwOffset = this.project(maxBounds.getNorthWest(), zoom).subtract(pxBounds.min),
2322                     seOffset = this.project(maxBounds.getSouthEast(), zoom).subtract(pxBounds.max),
2323
2324                     dx = this._rebound(nwOffset.x, -seOffset.x),
2325                     dy = this._rebound(nwOffset.y, -seOffset.y);
2326
2327                 return new L.Point(dx, dy);
2328         },
2329
2330         _rebound: function (left, right) {
2331                 return left + right > 0 ?
2332                         Math.round(left - right) / 2 :
2333                         Math.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right));
2334         },
2335
2336         _limitZoom: function (zoom) {
2337                 var min = this.getMinZoom(),
2338                     max = this.getMaxZoom();
2339
2340                 return Math.max(min, Math.min(max, zoom));
2341         }
2342 });
2343
2344 L.map = function (id, options) {
2345         return new L.Map(id, options);
2346 };
2347
2348
2349 /*
2350  * Mercator projection that takes into account that the Earth is not a perfect sphere.
2351  * Less popular than spherical mercator; used by projections like EPSG:3395.
2352  */
2353
2354 L.Projection.Mercator = {
2355         MAX_LATITUDE: 85.0840591556,
2356
2357         R_MINOR: 6356752.314245179,
2358         R_MAJOR: 6378137,
2359
2360         project: function (latlng) { // (LatLng) -> Point
2361                 var d = L.LatLng.DEG_TO_RAD,
2362                     max = this.MAX_LATITUDE,
2363                     lat = Math.max(Math.min(max, latlng.lat), -max),
2364                     r = this.R_MAJOR,
2365                     r2 = this.R_MINOR,
2366                     x = latlng.lng * d * r,
2367                     y = lat * d,
2368                     tmp = r2 / r,
2369                     eccent = Math.sqrt(1.0 - tmp * tmp),
2370                     con = eccent * Math.sin(y);
2371
2372                 con = Math.pow((1 - con) / (1 + con), eccent * 0.5);
2373
2374                 var ts = Math.tan(0.5 * ((Math.PI * 0.5) - y)) / con;
2375                 y = -r * Math.log(ts);
2376
2377                 return new L.Point(x, y);
2378         },
2379
2380         unproject: function (point) { // (Point, Boolean) -> LatLng
2381                 var d = L.LatLng.RAD_TO_DEG,
2382                     r = this.R_MAJOR,
2383                     r2 = this.R_MINOR,
2384                     lng = point.x * d / r,
2385                     tmp = r2 / r,
2386                     eccent = Math.sqrt(1 - (tmp * tmp)),
2387                     ts = Math.exp(- point.y / r),
2388                     phi = (Math.PI / 2) - 2 * Math.atan(ts),
2389                     numIter = 15,
2390                     tol = 1e-7,
2391                     i = numIter,
2392                     dphi = 0.1,
2393                     con;
2394
2395                 while ((Math.abs(dphi) > tol) && (--i > 0)) {
2396                         con = eccent * Math.sin(phi);
2397                         dphi = (Math.PI / 2) - 2 * Math.atan(ts *
2398                                     Math.pow((1.0 - con) / (1.0 + con), 0.5 * eccent)) - phi;
2399                         phi += dphi;
2400                 }
2401
2402                 return new L.LatLng(phi * d, lng);
2403         }
2404 };
2405
2406
2407
2408 L.CRS.EPSG3395 = L.extend({}, L.CRS, {
2409         code: 'EPSG:3395',
2410
2411         projection: L.Projection.Mercator,
2412
2413         transformation: (function () {
2414                 var m = L.Projection.Mercator,
2415                     r = m.R_MAJOR,
2416                     scale = 0.5 / (Math.PI * r);
2417
2418                 return new L.Transformation(scale, 0.5, -scale, 0.5);
2419         }())
2420 });
2421
2422
2423 /*
2424  * L.TileLayer is used for standard xyz-numbered tile layers.
2425  */
2426
2427 L.TileLayer = L.Class.extend({
2428         includes: L.Mixin.Events,
2429
2430         options: {
2431                 minZoom: 0,
2432                 maxZoom: 18,
2433                 tileSize: 256,
2434                 subdomains: 'abc',
2435                 errorTileUrl: '',
2436                 attribution: '',
2437                 zoomOffset: 0,
2438                 opacity: 1,
2439                 /*
2440                 maxNativeZoom: null,
2441                 zIndex: null,
2442                 tms: false,
2443                 continuousWorld: false,
2444                 noWrap: false,
2445                 zoomReverse: false,
2446                 detectRetina: false,
2447                 reuseTiles: false,
2448                 bounds: false,
2449                 */
2450                 unloadInvisibleTiles: L.Browser.mobile,
2451                 updateWhenIdle: L.Browser.mobile
2452         },
2453
2454         initialize: function (url, options) {
2455                 options = L.setOptions(this, options);
2456
2457                 // detecting retina displays, adjusting tileSize and zoom levels
2458                 if (options.detectRetina && L.Browser.retina && options.maxZoom > 0) {
2459
2460                         options.tileSize = Math.floor(options.tileSize / 2);
2461                         options.zoomOffset++;
2462
2463                         if (options.minZoom > 0) {
2464                                 options.minZoom--;
2465                         }
2466                         this.options.maxZoom--;
2467                 }
2468
2469                 if (options.bounds) {
2470                         options.bounds = L.latLngBounds(options.bounds);
2471                 }
2472
2473                 this._url = url;
2474
2475                 var subdomains = this.options.subdomains;
2476
2477                 if (typeof subdomains === 'string') {
2478                         this.options.subdomains = subdomains.split('');
2479                 }
2480         },
2481
2482         onAdd: function (map) {
2483                 this._map = map;
2484                 this._animated = map._zoomAnimated;
2485
2486                 // create a container div for tiles
2487                 this._initContainer();
2488
2489                 // set up events
2490                 map.on({
2491                         'viewreset': this._reset,
2492                         'moveend': this._update
2493                 }, this);
2494
2495                 if (this._animated) {
2496                         map.on({
2497                                 'zoomanim': this._animateZoom,
2498                                 'zoomend': this._endZoomAnim
2499                         }, this);
2500                 }
2501
2502                 if (!this.options.updateWhenIdle) {
2503                         this._limitedUpdate = L.Util.limitExecByInterval(this._update, 150, this);
2504                         map.on('move', this._limitedUpdate, this);
2505                 }
2506
2507                 this._reset();
2508                 this._update();
2509         },
2510
2511         addTo: function (map) {
2512                 map.addLayer(this);
2513                 return this;
2514         },
2515
2516         onRemove: function (map) {
2517                 this._container.parentNode.removeChild(this._container);
2518
2519                 map.off({
2520                         'viewreset': this._reset,
2521                         'moveend': this._update
2522                 }, this);
2523
2524                 if (this._animated) {
2525                         map.off({
2526                                 'zoomanim': this._animateZoom,
2527                                 'zoomend': this._endZoomAnim
2528                         }, this);
2529                 }
2530
2531                 if (!this.options.updateWhenIdle) {
2532                         map.off('move', this._limitedUpdate, this);
2533                 }
2534
2535                 this._container = null;
2536                 this._map = null;
2537         },
2538
2539         bringToFront: function () {
2540                 var pane = this._map._panes.tilePane;
2541
2542                 if (this._container) {
2543                         pane.appendChild(this._container);
2544                         this._setAutoZIndex(pane, Math.max);
2545                 }
2546
2547                 return this;
2548         },
2549
2550         bringToBack: function () {
2551                 var pane = this._map._panes.tilePane;
2552
2553                 if (this._container) {
2554                         pane.insertBefore(this._container, pane.firstChild);
2555                         this._setAutoZIndex(pane, Math.min);
2556                 }
2557
2558                 return this;
2559         },
2560
2561         getAttribution: function () {
2562                 return this.options.attribution;
2563         },
2564
2565         getContainer: function () {
2566                 return this._container;
2567         },
2568
2569         setOpacity: function (opacity) {
2570                 this.options.opacity = opacity;
2571
2572                 if (this._map) {
2573                         this._updateOpacity();
2574                 }
2575
2576                 return this;
2577         },
2578
2579         setZIndex: function (zIndex) {
2580                 this.options.zIndex = zIndex;
2581                 this._updateZIndex();
2582
2583                 return this;
2584         },
2585
2586         setUrl: function (url, noRedraw) {
2587                 this._url = url;
2588
2589                 if (!noRedraw) {
2590                         this.redraw();
2591                 }
2592
2593                 return this;
2594         },
2595
2596         redraw: function () {
2597                 if (this._map) {
2598                         this._reset({hard: true});
2599                         this._update();
2600                 }
2601                 return this;
2602         },
2603
2604         _updateZIndex: function () {
2605                 if (this._container && this.options.zIndex !== undefined) {
2606                         this._container.style.zIndex = this.options.zIndex;
2607                 }
2608         },
2609
2610         _setAutoZIndex: function (pane, compare) {
2611
2612                 var layers = pane.children,
2613                     edgeZIndex = -compare(Infinity, -Infinity), // -Infinity for max, Infinity for min
2614                     zIndex, i, len;
2615
2616                 for (i = 0, len = layers.length; i < len; i++) {
2617
2618                         if (layers[i] !== this._container) {
2619                                 zIndex = parseInt(layers[i].style.zIndex, 10);
2620
2621                                 if (!isNaN(zIndex)) {
2622                                         edgeZIndex = compare(edgeZIndex, zIndex);
2623                                 }
2624                         }
2625                 }
2626
2627                 this.options.zIndex = this._container.style.zIndex =
2628                         (isFinite(edgeZIndex) ? edgeZIndex : 0) + compare(1, -1);
2629         },
2630
2631         _updateOpacity: function () {
2632                 var i,
2633                     tiles = this._tiles;
2634
2635                 if (L.Browser.ielt9) {
2636                         for (i in tiles) {
2637                                 L.DomUtil.setOpacity(tiles[i], this.options.opacity);
2638                         }
2639                 } else {
2640                         L.DomUtil.setOpacity(this._container, this.options.opacity);
2641                 }
2642         },
2643
2644         _initContainer: function () {
2645                 var tilePane = this._map._panes.tilePane;
2646
2647                 if (!this._container) {
2648                         this._container = L.DomUtil.create('div', 'leaflet-layer');
2649
2650                         this._updateZIndex();
2651
2652                         if (this._animated) {
2653                                 var className = 'leaflet-tile-container';
2654
2655                                 this._bgBuffer = L.DomUtil.create('div', className, this._container);
2656                                 this._tileContainer = L.DomUtil.create('div', className, this._container);
2657
2658                         } else {
2659                                 this._tileContainer = this._container;
2660                         }
2661
2662                         tilePane.appendChild(this._container);
2663
2664                         if (this.options.opacity < 1) {
2665                                 this._updateOpacity();
2666                         }
2667                 }
2668         },
2669
2670         _reset: function (e) {
2671                 for (var key in this._tiles) {
2672                         this.fire('tileunload', {tile: this._tiles[key]});
2673                 }
2674
2675                 this._tiles = {};
2676                 this._tilesToLoad = 0;
2677
2678                 if (this.options.reuseTiles) {
2679                         this._unusedTiles = [];
2680                 }
2681
2682                 this._tileContainer.innerHTML = '';
2683
2684                 if (this._animated && e && e.hard) {
2685                         this._clearBgBuffer();
2686                 }
2687
2688                 this._initContainer();
2689         },
2690
2691         _getTileSize: function () {
2692                 var map = this._map,
2693                     zoom = map.getZoom() + this.options.zoomOffset,
2694                     zoomN = this.options.maxNativeZoom,
2695                     tileSize = this.options.tileSize;
2696
2697                 if (zoomN && zoom > zoomN) {
2698                         tileSize = Math.round(map.getZoomScale(zoom) / map.getZoomScale(zoomN) * tileSize);
2699                 }
2700
2701                 return tileSize;
2702         },
2703
2704         _update: function () {
2705
2706                 if (!this._map) { return; }
2707
2708                 var map = this._map,
2709                     bounds = map.getPixelBounds(),
2710                     zoom = map.getZoom(),
2711                     tileSize = this._getTileSize();
2712
2713                 if (zoom > this.options.maxZoom || zoom < this.options.minZoom) {
2714                         return;
2715                 }
2716
2717                 var tileBounds = L.bounds(
2718                         bounds.min.divideBy(tileSize)._floor(),
2719                         bounds.max.divideBy(tileSize)._floor());
2720
2721                 this._addTilesFromCenterOut(tileBounds);
2722
2723                 if (this.options.unloadInvisibleTiles || this.options.reuseTiles) {
2724                         this._removeOtherTiles(tileBounds);
2725                 }
2726         },
2727
2728         _addTilesFromCenterOut: function (bounds) {
2729                 var queue = [],
2730                     center = bounds.getCenter();
2731
2732                 var j, i, point;
2733
2734                 for (j = bounds.min.y; j <= bounds.max.y; j++) {
2735                         for (i = bounds.min.x; i <= bounds.max.x; i++) {
2736                                 point = new L.Point(i, j);
2737
2738                                 if (this._tileShouldBeLoaded(point)) {
2739                                         queue.push(point);
2740                                 }
2741                         }
2742                 }
2743
2744                 var tilesToLoad = queue.length;
2745
2746                 if (tilesToLoad === 0) { return; }
2747
2748                 // load tiles in order of their distance to center
2749                 queue.sort(function (a, b) {
2750                         return a.distanceTo(center) - b.distanceTo(center);
2751                 });
2752
2753                 var fragment = document.createDocumentFragment();
2754
2755                 // if its the first batch of tiles to load
2756                 if (!this._tilesToLoad) {
2757                         this.fire('loading');
2758                 }
2759
2760                 this._tilesToLoad += tilesToLoad;
2761
2762                 for (i = 0; i < tilesToLoad; i++) {
2763                         this._addTile(queue[i], fragment);
2764                 }
2765
2766                 this._tileContainer.appendChild(fragment);
2767         },
2768
2769         _tileShouldBeLoaded: function (tilePoint) {
2770                 if ((tilePoint.x + ':' + tilePoint.y) in this._tiles) {
2771                         return false; // already loaded
2772                 }
2773
2774                 var options = this.options;
2775
2776                 if (!options.continuousWorld) {
2777                         var limit = this._getWrapTileNum();
2778
2779                         // don't load if exceeds world bounds
2780                         if ((options.noWrap && (tilePoint.x < 0 || tilePoint.x >= limit.x)) ||
2781                                 tilePoint.y < 0 || tilePoint.y >= limit.y) { return false; }
2782                 }
2783
2784                 if (options.bounds) {
2785                         var tileSize = options.tileSize,
2786                             nwPoint = tilePoint.multiplyBy(tileSize),
2787                             sePoint = nwPoint.add([tileSize, tileSize]),
2788                             nw = this._map.unproject(nwPoint),
2789                             se = this._map.unproject(sePoint);
2790
2791                         // TODO temporary hack, will be removed after refactoring projections
2792                         // https://github.com/Leaflet/Leaflet/issues/1618
2793                         if (!options.continuousWorld && !options.noWrap) {
2794                                 nw = nw.wrap();
2795                                 se = se.wrap();
2796                         }
2797
2798                         if (!options.bounds.intersects([nw, se])) { return false; }
2799                 }
2800
2801                 return true;
2802         },
2803
2804         _removeOtherTiles: function (bounds) {
2805                 var kArr, x, y, key;
2806
2807                 for (key in this._tiles) {
2808                         kArr = key.split(':');
2809                         x = parseInt(kArr[0], 10);
2810                         y = parseInt(kArr[1], 10);
2811
2812                         // remove tile if it's out of bounds
2813                         if (x < bounds.min.x || x > bounds.max.x || y < bounds.min.y || y > bounds.max.y) {
2814                                 this._removeTile(key);
2815                         }
2816                 }
2817         },
2818
2819         _removeTile: function (key) {
2820                 var tile = this._tiles[key];
2821
2822                 this.fire('tileunload', {tile: tile, url: tile.src});
2823
2824                 if (this.options.reuseTiles) {
2825                         L.DomUtil.removeClass(tile, 'leaflet-tile-loaded');
2826                         this._unusedTiles.push(tile);
2827
2828                 } else if (tile.parentNode === this._tileContainer) {
2829                         this._tileContainer.removeChild(tile);
2830                 }
2831
2832                 // for https://github.com/CloudMade/Leaflet/issues/137
2833                 if (!L.Browser.android) {
2834                         tile.onload = null;
2835                         tile.src = L.Util.emptyImageUrl;
2836                 }
2837
2838                 delete this._tiles[key];
2839         },
2840
2841         _addTile: function (tilePoint, container) {
2842                 var tilePos = this._getTilePos(tilePoint);
2843
2844                 // get unused tile - or create a new tile
2845                 var tile = this._getTile();
2846
2847                 /*
2848                 Chrome 20 layouts much faster with top/left (verify with timeline, frames)
2849                 Android 4 browser has display issues with top/left and requires transform instead
2850                 (other browsers don't currently care) - see debug/hacks/jitter.html for an example
2851                 */
2852                 L.DomUtil.setPosition(tile, tilePos, L.Browser.chrome);
2853
2854                 this._tiles[tilePoint.x + ':' + tilePoint.y] = tile;
2855
2856                 this._loadTile(tile, tilePoint);
2857
2858                 if (tile.parentNode !== this._tileContainer) {
2859                         container.appendChild(tile);
2860                 }
2861         },
2862
2863         _getZoomForUrl: function () {
2864
2865                 var options = this.options,
2866                     zoom = this._map.getZoom();
2867
2868                 if (options.zoomReverse) {
2869                         zoom = options.maxZoom - zoom;
2870                 }
2871
2872                 zoom += options.zoomOffset;
2873
2874                 return options.maxNativeZoom ? Math.min(zoom, options.maxNativeZoom) : zoom;
2875         },
2876
2877         _getTilePos: function (tilePoint) {
2878                 var origin = this._map.getPixelOrigin(),
2879                     tileSize = this._getTileSize();
2880
2881                 return tilePoint.multiplyBy(tileSize).subtract(origin);
2882         },
2883
2884         // image-specific code (override to implement e.g. Canvas or SVG tile layer)
2885
2886         getTileUrl: function (tilePoint) {
2887                 return L.Util.template(this._url, L.extend({
2888                         s: this._getSubdomain(tilePoint),
2889                         z: tilePoint.z,
2890                         x: tilePoint.x,
2891                         y: tilePoint.y
2892                 }, this.options));
2893         },
2894
2895         _getWrapTileNum: function () {
2896                 var crs = this._map.options.crs,
2897                     size = crs.getSize(this._map.getZoom());
2898                 return size.divideBy(this._getTileSize())._floor();
2899         },
2900
2901         _adjustTilePoint: function (tilePoint) {
2902
2903                 var limit = this._getWrapTileNum();
2904
2905                 // wrap tile coordinates
2906                 if (!this.options.continuousWorld && !this.options.noWrap) {
2907                         tilePoint.x = ((tilePoint.x % limit.x) + limit.x) % limit.x;
2908                 }
2909
2910                 if (this.options.tms) {
2911                         tilePoint.y = limit.y - tilePoint.y - 1;
2912                 }
2913
2914                 tilePoint.z = this._getZoomForUrl();
2915         },
2916
2917         _getSubdomain: function (tilePoint) {
2918                 var index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length;
2919                 return this.options.subdomains[index];
2920         },
2921
2922         _getTile: function () {
2923                 if (this.options.reuseTiles && this._unusedTiles.length > 0) {
2924                         var tile = this._unusedTiles.pop();
2925                         this._resetTile(tile);
2926                         return tile;
2927                 }
2928                 return this._createTile();
2929         },
2930
2931         // Override if data stored on a tile needs to be cleaned up before reuse
2932         _resetTile: function (/*tile*/) {},
2933
2934         _createTile: function () {
2935                 var tile = L.DomUtil.create('img', 'leaflet-tile');
2936                 tile.style.width = tile.style.height = this._getTileSize() + 'px';
2937                 tile.galleryimg = 'no';
2938
2939                 tile.onselectstart = tile.onmousemove = L.Util.falseFn;
2940
2941                 if (L.Browser.ielt9 && this.options.opacity !== undefined) {
2942                         L.DomUtil.setOpacity(tile, this.options.opacity);
2943                 }
2944                 // without this hack, tiles disappear after zoom on Chrome for Android
2945                 // https://github.com/Leaflet/Leaflet/issues/2078
2946                 if (L.Browser.mobileWebkit3d) {
2947                         tile.style.WebkitBackfaceVisibility = 'hidden';
2948                 }
2949                 return tile;
2950         },
2951
2952         _loadTile: function (tile, tilePoint) {
2953                 tile._layer  = this;
2954                 tile.onload  = this._tileOnLoad;
2955                 tile.onerror = this._tileOnError;
2956
2957                 this._adjustTilePoint(tilePoint);
2958                 tile.src     = this.getTileUrl(tilePoint);
2959
2960                 this.fire('tileloadstart', {
2961                         tile: tile,
2962                         url: tile.src
2963                 });
2964         },
2965
2966         _tileLoaded: function () {
2967                 this._tilesToLoad--;
2968
2969                 if (this._animated) {
2970                         L.DomUtil.addClass(this._tileContainer, 'leaflet-zoom-animated');
2971                 }
2972
2973                 if (!this._tilesToLoad) {
2974                         this.fire('load');
2975
2976                         if (this._animated) {
2977                                 // clear scaled tiles after all new tiles are loaded (for performance)
2978                                 clearTimeout(this._clearBgBufferTimer);
2979                                 this._clearBgBufferTimer = setTimeout(L.bind(this._clearBgBuffer, this), 500);
2980                         }
2981                 }
2982         },
2983
2984         _tileOnLoad: function () {
2985                 var layer = this._layer;
2986
2987                 //Only if we are loading an actual image
2988                 if (this.src !== L.Util.emptyImageUrl) {
2989                         L.DomUtil.addClass(this, 'leaflet-tile-loaded');
2990
2991                         layer.fire('tileload', {
2992                                 tile: this,
2993                                 url: this.src
2994                         });
2995                 }
2996
2997                 layer._tileLoaded();
2998         },
2999
3000         _tileOnError: function () {
3001                 var layer = this._layer;
3002
3003                 layer.fire('tileerror', {
3004                         tile: this,
3005                         url: this.src
3006                 });
3007
3008                 var newUrl = layer.options.errorTileUrl;
3009                 if (newUrl) {
3010                         this.src = newUrl;
3011                 }
3012
3013                 layer._tileLoaded();
3014         }
3015 });
3016
3017 L.tileLayer = function (url, options) {
3018         return new L.TileLayer(url, options);
3019 };
3020
3021
3022 /*
3023  * L.TileLayer.WMS is used for putting WMS tile layers on the map.
3024  */
3025
3026 L.TileLayer.WMS = L.TileLayer.extend({
3027
3028         defaultWmsParams: {
3029                 service: 'WMS',
3030                 request: 'GetMap',
3031                 version: '1.1.1',
3032                 layers: '',
3033                 styles: '',
3034                 format: 'image/jpeg',
3035                 transparent: false
3036         },
3037
3038         initialize: function (url, options) { // (String, Object)
3039
3040                 this._url = url;
3041
3042                 var wmsParams = L.extend({}, this.defaultWmsParams),
3043                     tileSize = options.tileSize || this.options.tileSize;
3044
3045                 if (options.detectRetina && L.Browser.retina) {
3046                         wmsParams.width = wmsParams.height = tileSize * 2;
3047                 } else {
3048                         wmsParams.width = wmsParams.height = tileSize;
3049                 }
3050
3051                 for (var i in options) {
3052                         // all keys that are not TileLayer options go to WMS params
3053                         if (!this.options.hasOwnProperty(i) && i !== 'crs') {
3054                                 wmsParams[i] = options[i];
3055                         }
3056                 }
3057
3058                 this.wmsParams = wmsParams;
3059
3060                 L.setOptions(this, options);
3061         },
3062
3063         onAdd: function (map) {
3064
3065                 this._crs = this.options.crs || map.options.crs;
3066
3067                 this._wmsVersion = parseFloat(this.wmsParams.version);
3068
3069                 var projectionKey = this._wmsVersion >= 1.3 ? 'crs' : 'srs';
3070                 this.wmsParams[projectionKey] = this._crs.code;
3071
3072                 L.TileLayer.prototype.onAdd.call(this, map);
3073         },
3074
3075         getTileUrl: function (tilePoint) { // (Point, Number) -> String
3076
3077                 var map = this._map,
3078                     tileSize = this.options.tileSize,
3079
3080                     nwPoint = tilePoint.multiplyBy(tileSize),
3081                     sePoint = nwPoint.add([tileSize, tileSize]),
3082
3083                     nw = this._crs.project(map.unproject(nwPoint, tilePoint.z)),
3084                     se = this._crs.project(map.unproject(sePoint, tilePoint.z)),
3085                     bbox = this._wmsVersion >= 1.3 && this._crs === L.CRS.EPSG4326 ?
3086                         [se.y, nw.x, nw.y, se.x].join(',') :
3087                         [nw.x, se.y, se.x, nw.y].join(','),
3088
3089                     url = L.Util.template(this._url, {s: this._getSubdomain(tilePoint)});
3090
3091                 return url + L.Util.getParamString(this.wmsParams, url, true) + '&BBOX=' + bbox;
3092         },
3093
3094         setParams: function (params, noRedraw) {
3095
3096                 L.extend(this.wmsParams, params);
3097
3098                 if (!noRedraw) {
3099                         this.redraw();
3100                 }
3101
3102                 return this;
3103         }
3104 });
3105
3106 L.tileLayer.wms = function (url, options) {
3107         return new L.TileLayer.WMS(url, options);
3108 };
3109
3110
3111 /*
3112  * L.TileLayer.Canvas is a class that you can use as a base for creating
3113  * dynamically drawn Canvas-based tile layers.
3114  */
3115
3116 L.TileLayer.Canvas = L.TileLayer.extend({
3117         options: {
3118                 async: false
3119         },
3120
3121         initialize: function (options) {
3122                 L.setOptions(this, options);
3123         },
3124
3125         redraw: function () {
3126                 if (this._map) {
3127                         this._reset({hard: true});
3128                         this._update();
3129                 }
3130
3131                 for (var i in this._tiles) {
3132                         this._redrawTile(this._tiles[i]);
3133                 }
3134                 return this;
3135         },
3136
3137         _redrawTile: function (tile) {
3138                 this.drawTile(tile, tile._tilePoint, this._map._zoom);
3139         },
3140
3141         _createTile: function () {
3142                 var tile = L.DomUtil.create('canvas', 'leaflet-tile');
3143                 tile.width = tile.height = this.options.tileSize;
3144                 tile.onselectstart = tile.onmousemove = L.Util.falseFn;
3145                 return tile;
3146         },
3147
3148         _loadTile: function (tile, tilePoint) {
3149                 tile._layer = this;
3150                 tile._tilePoint = tilePoint;
3151
3152                 this._redrawTile(tile);
3153
3154                 if (!this.options.async) {
3155                         this.tileDrawn(tile);
3156                 }
3157         },
3158
3159         drawTile: function (/*tile, tilePoint*/) {
3160                 // override with rendering code
3161         },
3162
3163         tileDrawn: function (tile) {
3164                 this._tileOnLoad.call(tile);
3165         }
3166 });
3167
3168
3169 L.tileLayer.canvas = function (options) {
3170         return new L.TileLayer.Canvas(options);
3171 };
3172
3173
3174 /*
3175  * L.ImageOverlay is used to overlay images over the map (to specific geographical bounds).
3176  */
3177
3178 L.ImageOverlay = L.Class.extend({
3179         includes: L.Mixin.Events,
3180
3181         options: {
3182                 opacity: 1
3183         },
3184
3185         initialize: function (url, bounds, options) { // (String, LatLngBounds, Object)
3186                 this._url = url;
3187                 this._bounds = L.latLngBounds(bounds);
3188
3189                 L.setOptions(this, options);
3190         },
3191
3192         onAdd: function (map) {
3193                 this._map = map;
3194
3195                 if (!this._image) {
3196                         this._initImage();
3197                 }
3198
3199                 map._panes.overlayPane.appendChild(this._image);
3200
3201                 map.on('viewreset', this._reset, this);
3202
3203                 if (map.options.zoomAnimation && L.Browser.any3d) {
3204                         map.on('zoomanim', this._animateZoom, this);
3205                 }
3206
3207                 this._reset();
3208         },
3209
3210         onRemove: function (map) {
3211                 map.getPanes().overlayPane.removeChild(this._image);
3212
3213                 map.off('viewreset', this._reset, this);
3214
3215                 if (map.options.zoomAnimation) {
3216                         map.off('zoomanim', this._animateZoom, this);
3217                 }
3218         },
3219
3220         addTo: function (map) {
3221                 map.addLayer(this);
3222                 return this;
3223         },
3224
3225         setOpacity: function (opacity) {
3226                 this.options.opacity = opacity;
3227                 this._updateOpacity();
3228                 return this;
3229         },
3230
3231         // TODO remove bringToFront/bringToBack duplication from TileLayer/Path
3232         bringToFront: function () {
3233                 if (this._image) {
3234                         this._map._panes.overlayPane.appendChild(this._image);
3235                 }
3236                 return this;
3237         },
3238
3239         bringToBack: function () {
3240                 var pane = this._map._panes.overlayPane;
3241                 if (this._image) {
3242                         pane.insertBefore(this._image, pane.firstChild);
3243                 }
3244                 return this;
3245         },
3246
3247         setUrl: function (url) {
3248                 this._url = url;
3249                 this._image.src = this._url;
3250         },
3251
3252         getAttribution: function () {
3253                 return this.options.attribution;
3254         },
3255
3256         _initImage: function () {
3257                 this._image = L.DomUtil.create('img', 'leaflet-image-layer');
3258
3259                 if (this._map.options.zoomAnimation && L.Browser.any3d) {
3260                         L.DomUtil.addClass(this._image, 'leaflet-zoom-animated');
3261                 } else {
3262                         L.DomUtil.addClass(this._image, 'leaflet-zoom-hide');
3263                 }
3264
3265                 this._updateOpacity();
3266
3267                 //TODO createImage util method to remove duplication
3268                 L.extend(this._image, {
3269                         galleryimg: 'no',
3270                         onselectstart: L.Util.falseFn,
3271                         onmousemove: L.Util.falseFn,
3272                         onload: L.bind(this._onImageLoad, this),
3273                         src: this._url
3274                 });
3275         },
3276
3277         _animateZoom: function (e) {
3278                 var map = this._map,
3279                     image = this._image,
3280                     scale = map.getZoomScale(e.zoom),
3281                     nw = this._bounds.getNorthWest(),
3282                     se = this._bounds.getSouthEast(),
3283
3284                     topLeft = map._latLngToNewLayerPoint(nw, e.zoom, e.center),
3285                     size = map._latLngToNewLayerPoint(se, e.zoom, e.center)._subtract(topLeft),
3286                     origin = topLeft._add(size._multiplyBy((1 / 2) * (1 - 1 / scale)));
3287
3288                 image.style[L.DomUtil.TRANSFORM] =
3289                         L.DomUtil.getTranslateString(origin) + ' scale(' + scale + ') ';
3290         },
3291
3292         _reset: function () {
3293                 var image   = this._image,
3294                     topLeft = this._map.latLngToLayerPoint(this._bounds.getNorthWest()),
3295                     size = this._map.latLngToLayerPoint(this._bounds.getSouthEast())._subtract(topLeft);
3296
3297                 L.DomUtil.setPosition(image, topLeft);
3298
3299                 image.style.width  = size.x + 'px';
3300                 image.style.height = size.y + 'px';
3301         },
3302
3303         _onImageLoad: function () {
3304                 this.fire('load');
3305         },
3306
3307         _updateOpacity: function () {
3308                 L.DomUtil.setOpacity(this._image, this.options.opacity);
3309         }
3310 });
3311
3312 L.imageOverlay = function (url, bounds, options) {
3313         return new L.ImageOverlay(url, bounds, options);
3314 };
3315
3316
3317 /*
3318  * L.Icon is an image-based icon class that you can use with L.Marker for custom markers.
3319  */
3320
3321 L.Icon = L.Class.extend({
3322         options: {
3323                 /*
3324                 iconUrl: (String) (required)
3325                 iconRetinaUrl: (String) (optional, used for retina devices if detected)
3326                 iconSize: (Point) (can be set through CSS)
3327                 iconAnchor: (Point) (centered by default, can be set in CSS with negative margins)
3328                 popupAnchor: (Point) (if not specified, popup opens in the anchor point)
3329                 shadowUrl: (String) (no shadow by default)
3330                 shadowRetinaUrl: (String) (optional, used for retina devices if detected)
3331                 shadowSize: (Point)
3332                 shadowAnchor: (Point)
3333                 */
3334                 className: ''
3335         },
3336
3337         initialize: function (options) {
3338                 L.setOptions(this, options);
3339         },
3340
3341         createIcon: function (oldIcon) {
3342                 return this._createIcon('icon', oldIcon);
3343         },
3344
3345         createShadow: function (oldIcon) {
3346                 return this._createIcon('shadow', oldIcon);
3347         },
3348
3349         _createIcon: function (name, oldIcon) {
3350                 var src = this._getIconUrl(name);
3351
3352                 if (!src) {
3353                         if (name === 'icon') {
3354                                 throw new Error('iconUrl not set in Icon options (see the docs).');
3355                         }
3356                         return null;
3357                 }
3358
3359                 var img;
3360                 if (!oldIcon || oldIcon.tagName !== 'IMG') {
3361                         img = this._createImg(src);
3362                 } else {
3363                         img = this._createImg(src, oldIcon);
3364                 }
3365                 this._setIconStyles(img, name);
3366
3367                 return img;
3368         },
3369
3370         _setIconStyles: function (img, name) {
3371                 var options = this.options,
3372                     size = L.point(options[name + 'Size']),
3373                     anchor;
3374
3375                 if (name === 'shadow') {
3376                         anchor = L.point(options.shadowAnchor || options.iconAnchor);
3377                 } else {
3378                         anchor = L.point(options.iconAnchor);
3379                 }
3380
3381                 if (!anchor && size) {
3382                         anchor = size.divideBy(2, true);
3383                 }
3384
3385                 img.className = 'leaflet-marker-' + name + ' ' + options.className;
3386
3387                 if (anchor) {
3388                         img.style.marginLeft = (-anchor.x) + 'px';
3389                         img.style.marginTop  = (-anchor.y) + 'px';
3390                 }
3391
3392                 if (size) {
3393                         img.style.width  = size.x + 'px';
3394                         img.style.height = size.y + 'px';
3395                 }
3396         },
3397
3398         _createImg: function (src, el) {
3399                 el = el || document.createElement('img');
3400                 el.src = src;
3401                 return el;
3402         },
3403
3404         _getIconUrl: function (name) {
3405                 if (L.Browser.retina && this.options[name + 'RetinaUrl']) {
3406                         return this.options[name + 'RetinaUrl'];
3407                 }
3408                 return this.options[name + 'Url'];
3409         }
3410 });
3411
3412 L.icon = function (options) {
3413         return new L.Icon(options);
3414 };
3415
3416
3417 /*
3418  * L.Icon.Default is the blue marker icon used by default in Leaflet.
3419  */
3420
3421 L.Icon.Default = L.Icon.extend({
3422
3423         options: {
3424                 iconSize: [25, 41],
3425                 iconAnchor: [12, 41],
3426                 popupAnchor: [1, -34],
3427
3428                 shadowSize: [41, 41]
3429         },
3430
3431         _getIconUrl: function (name) {
3432                 var key = name + 'Url';
3433
3434                 if (this.options[key]) {
3435                         return this.options[key];
3436                 }
3437
3438                 if (L.Browser.retina && name === 'icon') {
3439                         name += '-2x';
3440                 }
3441
3442                 var path = L.Icon.Default.imagePath;
3443
3444                 if (!path) {
3445                         throw new Error('Couldn\'t autodetect L.Icon.Default.imagePath, set it manually.');
3446                 }
3447
3448                 return path + '/marker-' + name + '.png';
3449         }
3450 });
3451
3452 L.Icon.Default.imagePath = (function () {
3453         var scripts = document.getElementsByTagName('script'),
3454             leafletRe = /[\/^]leaflet[\-\._]?([\w\-\._]*)\.js\??/;
3455
3456         var i, len, src, matches, path;
3457
3458         for (i = 0, len = scripts.length; i < len; i++) {
3459                 src = scripts[i].src;
3460                 matches = src.match(leafletRe);
3461
3462                 if (matches) {
3463                         path = src.split(leafletRe)[0];
3464                         return (path ? path + '/' : '') + 'images';
3465                 }
3466         }
3467 }());
3468
3469
3470 /*
3471  * L.Marker is used to display clickable/draggable icons on the map.
3472  */
3473
3474 L.Marker = L.Class.extend({
3475
3476         includes: L.Mixin.Events,
3477
3478         options: {
3479                 icon: new L.Icon.Default(),
3480                 title: '',
3481                 alt: '',
3482                 clickable: true,
3483                 draggable: false,
3484                 keyboard: true,
3485                 zIndexOffset: 0,
3486                 opacity: 1,
3487                 riseOnHover: false,
3488                 riseOffset: 250
3489         },
3490
3491         initialize: function (latlng, options) {
3492                 L.setOptions(this, options);
3493                 this._latlng = L.latLng(latlng);
3494         },
3495
3496         onAdd: function (map) {
3497                 this._map = map;
3498
3499                 map.on('viewreset', this.update, this);
3500
3501                 this._initIcon();
3502                 this.update();
3503                 this.fire('add');
3504
3505                 if (map.options.zoomAnimation && map.options.markerZoomAnimation) {
3506                         map.on('zoomanim', this._animateZoom, this);
3507                 }
3508         },
3509
3510         addTo: function (map) {
3511                 map.addLayer(this);
3512                 return this;
3513         },
3514
3515         onRemove: function (map) {
3516                 if (this.dragging) {
3517                         this.dragging.disable();
3518                 }
3519
3520                 this._removeIcon();
3521                 this._removeShadow();
3522
3523                 this.fire('remove');
3524
3525                 map.off({
3526                         'viewreset': this.update,
3527                         'zoomanim': this._animateZoom
3528                 }, this);
3529
3530                 this._map = null;
3531         },
3532
3533         getLatLng: function () {
3534                 return this._latlng;
3535         },
3536
3537         setLatLng: function (latlng) {
3538                 this._latlng = L.latLng(latlng);
3539
3540                 this.update();
3541
3542                 return this.fire('move', { latlng: this._latlng });
3543         },
3544
3545         setZIndexOffset: function (offset) {
3546                 this.options.zIndexOffset = offset;
3547                 this.update();
3548
3549                 return this;
3550         },
3551
3552         setIcon: function (icon) {
3553
3554                 this.options.icon = icon;
3555
3556                 if (this._map) {
3557                         this._initIcon();
3558                         this.update();
3559                 }
3560
3561                 if (this._popup) {
3562                         this.bindPopup(this._popup);
3563                 }
3564
3565                 return this;
3566         },
3567
3568         update: function () {
3569                 if (this._icon) {
3570                         var pos = this._map.latLngToLayerPoint(this._latlng).round();
3571                         this._setPos(pos);
3572                 }
3573
3574                 return this;
3575         },
3576
3577         _initIcon: function () {
3578                 var options = this.options,
3579                     map = this._map,
3580                     animation = (map.options.zoomAnimation && map.options.markerZoomAnimation),
3581                     classToAdd = animation ? 'leaflet-zoom-animated' : 'leaflet-zoom-hide';
3582
3583                 var icon = options.icon.createIcon(this._icon),
3584                         addIcon = false;
3585
3586                 // if we're not reusing the icon, remove the old one and init new one
3587                 if (icon !== this._icon) {
3588                         if (this._icon) {
3589                                 this._removeIcon();
3590                         }
3591                         addIcon = true;
3592
3593                         if (options.title) {
3594                                 icon.title = options.title;
3595                         }
3596
3597                         if (options.alt) {
3598                                 icon.alt = options.alt;
3599                         }
3600                 }
3601
3602                 L.DomUtil.addClass(icon, classToAdd);
3603
3604                 if (options.keyboard) {
3605                         icon.tabIndex = '0';
3606                 }
3607
3608                 this._icon = icon;
3609
3610                 this._initInteraction();
3611
3612                 if (options.riseOnHover) {
3613                         L.DomEvent
3614                                 .on(icon, 'mouseover', this._bringToFront, this)
3615                                 .on(icon, 'mouseout', this._resetZIndex, this);
3616                 }
3617
3618                 var newShadow = options.icon.createShadow(this._shadow),
3619                         addShadow = false;
3620
3621                 if (newShadow !== this._shadow) {
3622                         this._removeShadow();
3623                         addShadow = true;
3624                 }
3625
3626                 if (newShadow) {
3627                         L.DomUtil.addClass(newShadow, classToAdd);
3628                 }
3629                 this._shadow = newShadow;
3630
3631
3632                 if (options.opacity < 1) {
3633                         this._updateOpacity();
3634                 }
3635
3636
3637                 var panes = this._map._panes;
3638
3639                 if (addIcon) {
3640                         panes.markerPane.appendChild(this._icon);
3641                 }
3642
3643                 if (newShadow && addShadow) {
3644                         panes.shadowPane.appendChild(this._shadow);
3645                 }
3646         },
3647
3648         _removeIcon: function () {
3649                 if (this.options.riseOnHover) {
3650                         L.DomEvent
3651                             .off(this._icon, 'mouseover', this._bringToFront)
3652                             .off(this._icon, 'mouseout', this._resetZIndex);
3653                 }
3654
3655                 this._map._panes.markerPane.removeChild(this._icon);
3656
3657                 this._icon = null;
3658         },
3659
3660         _removeShadow: function () {
3661                 if (this._shadow) {
3662                         this._map._panes.shadowPane.removeChild(this._shadow);
3663                 }
3664                 this._shadow = null;
3665         },
3666
3667         _setPos: function (pos) {
3668                 L.DomUtil.setPosition(this._icon, pos);
3669
3670                 if (this._shadow) {
3671                         L.DomUtil.setPosition(this._shadow, pos);
3672                 }
3673
3674                 this._zIndex = pos.y + this.options.zIndexOffset;
3675
3676                 this._resetZIndex();
3677         },
3678
3679         _updateZIndex: function (offset) {
3680                 this._icon.style.zIndex = this._zIndex + offset;
3681         },
3682
3683         _animateZoom: function (opt) {
3684                 var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round();
3685
3686                 this._setPos(pos);
3687         },
3688
3689         _initInteraction: function () {
3690
3691                 if (!this.options.clickable) { return; }
3692
3693                 // TODO refactor into something shared with Map/Path/etc. to DRY it up
3694
3695                 var icon = this._icon,
3696                     events = ['dblclick', 'mousedown', 'mouseover', 'mouseout', 'contextmenu'];
3697
3698                 L.DomUtil.addClass(icon, 'leaflet-clickable');
3699                 L.DomEvent.on(icon, 'click', this._onMouseClick, this);
3700                 L.DomEvent.on(icon, 'keypress', this._onKeyPress, this);
3701
3702                 for (var i = 0; i < events.length; i++) {
3703                         L.DomEvent.on(icon, events[i], this._fireMouseEvent, this);
3704                 }
3705
3706                 if (L.Handler.MarkerDrag) {
3707                         this.dragging = new L.Handler.MarkerDrag(this);
3708
3709                         if (this.options.draggable) {
3710                                 this.dragging.enable();
3711                         }
3712                 }
3713         },
3714
3715         _onMouseClick: function (e) {
3716                 var wasDragged = this.dragging && this.dragging.moved();
3717
3718                 if (this.hasEventListeners(e.type) || wasDragged) {
3719                         L.DomEvent.stopPropagation(e);
3720                 }
3721
3722                 if (wasDragged) { return; }
3723
3724                 if ((!this.dragging || !this.dragging._enabled) && this._map.dragging && this._map.dragging.moved()) { return; }
3725
3726                 this.fire(e.type, {
3727                         originalEvent: e,
3728                         latlng: this._latlng
3729                 });
3730         },
3731
3732         _onKeyPress: function (e) {
3733                 if (e.keyCode === 13) {
3734                         this.fire('click', {
3735                                 originalEvent: e,
3736                                 latlng: this._latlng
3737                         });
3738                 }
3739         },
3740
3741         _fireMouseEvent: function (e) {
3742
3743                 this.fire(e.type, {
3744                         originalEvent: e,
3745                         latlng: this._latlng
3746                 });
3747
3748                 // TODO proper custom event propagation
3749                 // this line will always be called if marker is in a FeatureGroup
3750                 if (e.type === 'contextmenu' && this.hasEventListeners(e.type)) {
3751                         L.DomEvent.preventDefault(e);
3752                 }
3753                 if (e.type !== 'mousedown') {
3754                         L.DomEvent.stopPropagation(e);
3755                 } else {
3756                         L.DomEvent.preventDefault(e);
3757                 }
3758         },
3759
3760         setOpacity: function (opacity) {
3761                 this.options.opacity = opacity;
3762                 if (this._map) {
3763                         this._updateOpacity();
3764                 }
3765
3766                 return this;
3767         },
3768
3769         _updateOpacity: function () {
3770                 L.DomUtil.setOpacity(this._icon, this.options.opacity);
3771                 if (this._shadow) {
3772                         L.DomUtil.setOpacity(this._shadow, this.options.opacity);
3773                 }
3774         },
3775
3776         _bringToFront: function () {
3777                 this._updateZIndex(this.options.riseOffset);
3778         },
3779
3780         _resetZIndex: function () {
3781                 this._updateZIndex(0);
3782         }
3783 });
3784
3785 L.marker = function (latlng, options) {
3786         return new L.Marker(latlng, options);
3787 };
3788
3789
3790 /*
3791  * L.DivIcon is a lightweight HTML-based icon class (as opposed to the image-based L.Icon)
3792  * to use with L.Marker.
3793  */
3794
3795 L.DivIcon = L.Icon.extend({
3796         options: {
3797                 iconSize: [12, 12], // also can be set through CSS
3798                 /*
3799                 iconAnchor: (Point)
3800                 popupAnchor: (Point)
3801                 html: (String)
3802                 bgPos: (Point)
3803                 */
3804                 className: 'leaflet-div-icon',
3805                 html: false
3806         },
3807
3808         createIcon: function (oldIcon) {
3809                 var div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'),
3810                     options = this.options;
3811
3812                 if (options.html !== false) {
3813                         div.innerHTML = options.html;
3814                 } else {
3815                         div.innerHTML = '';
3816                 }
3817
3818                 if (options.bgPos) {
3819                         div.style.backgroundPosition =
3820                                 (-options.bgPos.x) + 'px ' + (-options.bgPos.y) + 'px';
3821                 }
3822
3823                 this._setIconStyles(div, 'icon');
3824                 return div;
3825         },
3826
3827         createShadow: function () {
3828                 return null;
3829         }
3830 });
3831
3832 L.divIcon = function (options) {
3833         return new L.DivIcon(options);
3834 };
3835
3836
3837 /*
3838  * L.Popup is used for displaying popups on the map.
3839  */
3840
3841 L.Map.mergeOptions({
3842         closePopupOnClick: true
3843 });
3844
3845 L.Popup = L.Class.extend({
3846         includes: L.Mixin.Events,
3847
3848         options: {
3849                 minWidth: 50,
3850                 maxWidth: 300,
3851                 // maxHeight: null,
3852                 autoPan: true,
3853                 closeButton: true,
3854                 offset: [0, 7],
3855                 autoPanPadding: [5, 5],
3856                 // autoPanPaddingTopLeft: null,
3857                 // autoPanPaddingBottomRight: null,
3858                 keepInView: false,
3859                 className: '',
3860                 zoomAnimation: true
3861         },
3862
3863         initialize: function (options, source) {
3864                 L.setOptions(this, options);
3865
3866                 this._source = source;
3867                 this._animated = L.Browser.any3d && this.options.zoomAnimation;
3868                 this._isOpen = false;
3869         },
3870
3871         onAdd: function (map) {
3872                 this._map = map;
3873
3874                 if (!this._container) {
3875                         this._initLayout();
3876                 }
3877
3878                 var animFade = map.options.fadeAnimation;
3879
3880                 if (animFade) {
3881                         L.DomUtil.setOpacity(this._container, 0);
3882                 }
3883                 map._panes.popupPane.appendChild(this._container);
3884
3885                 map.on(this._getEvents(), this);
3886
3887                 this.update();
3888
3889                 if (animFade) {
3890                         L.DomUtil.setOpacity(this._container, 1);
3891                 }
3892
3893                 this.fire('open');
3894
3895                 map.fire('popupopen', {popup: this});
3896
3897                 if (this._source) {
3898                         this._source.fire('popupopen', {popup: this});
3899                 }
3900         },
3901
3902         addTo: function (map) {
3903                 map.addLayer(this);
3904                 return this;
3905         },
3906
3907         openOn: function (map) {
3908                 map.openPopup(this);
3909                 return this;
3910         },
3911
3912         onRemove: function (map) {
3913                 map._panes.popupPane.removeChild(this._container);
3914
3915                 L.Util.falseFn(this._container.offsetWidth); // force reflow
3916
3917                 map.off(this._getEvents(), this);
3918
3919                 if (map.options.fadeAnimation) {
3920                         L.DomUtil.setOpacity(this._container, 0);
3921                 }
3922
3923                 this._map = null;
3924
3925                 this.fire('close');
3926
3927                 map.fire('popupclose', {popup: this});
3928
3929                 if (this._source) {
3930                         this._source.fire('popupclose', {popup: this});
3931                 }
3932         },
3933
3934         getLatLng: function () {
3935                 return this._latlng;
3936         },
3937
3938         setLatLng: function (latlng) {
3939                 this._latlng = L.latLng(latlng);
3940                 if (this._map) {
3941                         this._updatePosition();
3942                         this._adjustPan();
3943                 }
3944                 return this;
3945         },
3946
3947         getContent: function () {
3948                 return this._content;
3949         },
3950
3951         setContent: function (content) {
3952                 this._content = content;
3953                 this.update();
3954                 return this;
3955         },
3956
3957         update: function () {
3958                 if (!this._map) { return; }
3959
3960                 this._container.style.visibility = 'hidden';
3961
3962                 this._updateContent();
3963                 this._updateLayout();
3964                 this._updatePosition();
3965
3966                 this._container.style.visibility = '';
3967
3968                 this._adjustPan();
3969         },
3970
3971         _getEvents: function () {
3972                 var events = {
3973                         viewreset: this._updatePosition
3974                 };
3975
3976                 if (this._animated) {
3977                         events.zoomanim = this._zoomAnimation;
3978                 }
3979                 if ('closeOnClick' in this.options ? this.options.closeOnClick : this._map.options.closePopupOnClick) {
3980                         events.preclick = this._close;
3981                 }
3982                 if (this.options.keepInView) {
3983                         events.moveend = this._adjustPan;
3984                 }
3985
3986                 return events;
3987         },
3988
3989         _close: function () {
3990                 if (this._map) {
3991                         this._map.closePopup(this);
3992                 }
3993         },
3994
3995         _initLayout: function () {
3996                 var prefix = 'leaflet-popup',
3997                         containerClass = prefix + ' ' + this.options.className + ' leaflet-zoom-' +
3998                                 (this._animated ? 'animated' : 'hide'),
3999                         container = this._container = L.DomUtil.create('div', containerClass),
4000                         closeButton;
4001
4002                 if (this.options.closeButton) {
4003                         closeButton = this._closeButton =
4004                                 L.DomUtil.create('a', prefix + '-close-button', container);
4005                         closeButton.href = '#close';
4006                         closeButton.innerHTML = '&#215;';
4007                         L.DomEvent.disableClickPropagation(closeButton);
4008
4009                         L.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this);
4010                 }
4011
4012                 var wrapper = this._wrapper =
4013                         L.DomUtil.create('div', prefix + '-content-wrapper', container);
4014                 L.DomEvent.disableClickPropagation(wrapper);
4015
4016                 this._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper);
4017
4018                 L.DomEvent.disableScrollPropagation(this._contentNode);
4019                 L.DomEvent.on(wrapper, 'contextmenu', L.DomEvent.stopPropagation);
4020
4021                 this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container);
4022                 this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer);
4023         },
4024
4025         _updateContent: function () {
4026                 if (!this._content) { return; }
4027
4028                 if (typeof this._content === 'string') {
4029                         this._contentNode.innerHTML = this._content;
4030                 } else {
4031                         while (this._contentNode.hasChildNodes()) {
4032                                 this._contentNode.removeChild(this._contentNode.firstChild);
4033                         }
4034                         this._contentNode.appendChild(this._content);
4035                 }
4036                 this.fire('contentupdate');
4037         },
4038
4039         _updateLayout: function () {
4040                 var container = this._contentNode,
4041                     style = container.style;
4042
4043                 style.width = '';
4044                 style.whiteSpace = 'nowrap';
4045
4046                 var width = container.offsetWidth;
4047                 width = Math.min(width, this.options.maxWidth);
4048                 width = Math.max(width, this.options.minWidth);
4049
4050                 style.width = (width + 1) + 'px';
4051                 style.whiteSpace = '';
4052
4053                 style.height = '';
4054
4055                 var height = container.offsetHeight,
4056                     maxHeight = this.options.maxHeight,
4057                     scrolledClass = 'leaflet-popup-scrolled';
4058
4059                 if (maxHeight && height > maxHeight) {
4060                         style.height = maxHeight + 'px';
4061                         L.DomUtil.addClass(container, scrolledClass);
4062                 } else {
4063                         L.DomUtil.removeClass(container, scrolledClass);
4064                 }
4065
4066                 this._containerWidth = this._container.offsetWidth;
4067         },
4068
4069         _updatePosition: function () {
4070                 if (!this._map) { return; }
4071
4072                 var pos = this._map.latLngToLayerPoint(this._latlng),
4073                     animated = this._animated,
4074                     offset = L.point(this.options.offset);
4075
4076                 if (animated) {
4077                         L.DomUtil.setPosition(this._container, pos);
4078                 }
4079
4080                 this._containerBottom = -offset.y - (animated ? 0 : pos.y);
4081                 this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x + (animated ? 0 : pos.x);
4082
4083                 // bottom position the popup in case the height of the popup changes (images loading etc)
4084                 this._container.style.bottom = this._containerBottom + 'px';
4085                 this._container.style.left = this._containerLeft + 'px';
4086         },
4087
4088         _zoomAnimation: function (opt) {
4089                 var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center);
4090
4091                 L.DomUtil.setPosition(this._container, pos);
4092         },
4093
4094         _adjustPan: function () {
4095                 if (!this.options.autoPan) { return; }
4096
4097                 var map = this._map,
4098                     containerHeight = this._container.offsetHeight,
4099                     containerWidth = this._containerWidth,
4100
4101                     layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom);
4102
4103                 if (this._animated) {
4104                         layerPos._add(L.DomUtil.getPosition(this._container));
4105                 }
4106
4107                 var containerPos = map.layerPointToContainerPoint(layerPos),
4108                     padding = L.point(this.options.autoPanPadding),
4109                     paddingTL = L.point(this.options.autoPanPaddingTopLeft || padding),
4110                     paddingBR = L.point(this.options.autoPanPaddingBottomRight || padding),
4111                     size = map.getSize(),
4112                     dx = 0,
4113                     dy = 0;
4114
4115                 if (containerPos.x + containerWidth + paddingBR.x > size.x) { // right
4116                         dx = containerPos.x + containerWidth - size.x + paddingBR.x;
4117                 }
4118                 if (containerPos.x - dx - paddingTL.x < 0) { // left
4119                         dx = containerPos.x - paddingTL.x;
4120                 }
4121                 if (containerPos.y + containerHeight + paddingBR.y > size.y) { // bottom
4122                         dy = containerPos.y + containerHeight - size.y + paddingBR.y;
4123                 }
4124                 if (containerPos.y - dy - paddingTL.y < 0) { // top
4125                         dy = containerPos.y - paddingTL.y;
4126                 }
4127
4128                 if (dx || dy) {
4129                         map
4130                             .fire('autopanstart')
4131                             .panBy([dx, dy]);
4132                 }
4133         },
4134
4135         _onCloseButtonClick: function (e) {
4136                 this._close();
4137                 L.DomEvent.stop(e);
4138         }
4139 });
4140
4141 L.popup = function (options, source) {
4142         return new L.Popup(options, source);
4143 };
4144
4145
4146 L.Map.include({
4147         openPopup: function (popup, latlng, options) { // (Popup) or (String || HTMLElement, LatLng[, Object])
4148                 this.closePopup();
4149
4150                 if (!(popup instanceof L.Popup)) {
4151                         var content = popup;
4152
4153                         popup = new L.Popup(options)
4154                             .setLatLng(latlng)
4155                             .setContent(content);
4156                 }
4157                 popup._isOpen = true;
4158
4159                 this._popup = popup;
4160                 return this.addLayer(popup);
4161         },
4162
4163         closePopup: function (popup) {
4164                 if (!popup || popup === this._popup) {
4165                         popup = this._popup;
4166                         this._popup = null;
4167                 }
4168                 if (popup) {
4169                         this.removeLayer(popup);
4170                         popup._isOpen = false;
4171                 }
4172                 return this;
4173         }
4174 });
4175
4176
4177 /*
4178  * Popup extension to L.Marker, adding popup-related methods.
4179  */
4180
4181 L.Marker.include({
4182         openPopup: function () {
4183                 if (this._popup && this._map && !this._map.hasLayer(this._popup)) {
4184                         this._popup.setLatLng(this._latlng);
4185                         this._map.openPopup(this._popup);
4186                 }
4187
4188                 return this;
4189         },
4190
4191         closePopup: function () {
4192                 if (this._popup) {
4193                         this._popup._close();
4194                 }
4195                 return this;
4196         },
4197
4198         togglePopup: function () {
4199                 if (this._popup) {
4200                         if (this._popup._isOpen) {
4201                                 this.closePopup();
4202                         } else {
4203                                 this.openPopup();
4204                         }
4205                 }
4206                 return this;
4207         },
4208
4209         bindPopup: function (content, options) {
4210                 var anchor = L.point(this.options.icon.options.popupAnchor || [0, 0]);
4211
4212                 anchor = anchor.add(L.Popup.prototype.options.offset);
4213
4214                 if (options && options.offset) {
4215                         anchor = anchor.add(options.offset);
4216                 }
4217
4218                 options = L.extend({offset: anchor}, options);
4219
4220                 if (!this._popupHandlersAdded) {
4221                         this
4222                             .on('click', this.togglePopup, this)
4223                             .on('remove', this.closePopup, this)
4224                             .on('move', this._movePopup, this);
4225                         this._popupHandlersAdded = true;
4226                 }
4227
4228                 if (content instanceof L.Popup) {
4229                         L.setOptions(content, options);
4230                         this._popup = content;
4231                 } else {
4232                         this._popup = new L.Popup(options, this)
4233                                 .setContent(content);
4234                 }
4235
4236                 return this;
4237         },
4238
4239         setPopupContent: function (content) {
4240                 if (this._popup) {
4241                         this._popup.setContent(content);
4242                 }
4243                 return this;
4244         },
4245
4246         unbindPopup: function () {
4247                 if (this._popup) {
4248                         this._popup = null;
4249                         this
4250                             .off('click', this.togglePopup, this)
4251                             .off('remove', this.closePopup, this)
4252                             .off('move', this._movePopup, this);
4253                         this._popupHandlersAdded = false;
4254                 }
4255                 return this;
4256         },
4257
4258         getPopup: function () {
4259                 return this._popup;
4260         },
4261
4262         _movePopup: function (e) {
4263                 this._popup.setLatLng(e.latlng);
4264         }
4265 });
4266
4267
4268 /*
4269  * L.LayerGroup is a class to combine several layers into one so that
4270  * you can manipulate the group (e.g. add/remove it) as one layer.
4271  */
4272
4273 L.LayerGroup = L.Class.extend({
4274         initialize: function (layers) {
4275                 this._layers = {};
4276
4277                 var i, len;
4278
4279                 if (layers) {
4280                         for (i = 0, len = layers.length; i < len; i++) {
4281                                 this.addLayer(layers[i]);
4282                         }
4283                 }
4284         },
4285
4286         addLayer: function (layer) {
4287                 var id = this.getLayerId(layer);
4288
4289                 this._layers[id] = layer;
4290
4291                 if (this._map) {
4292                         this._map.addLayer(layer);
4293                 }
4294
4295                 return this;
4296         },
4297
4298         removeLayer: function (layer) {
4299                 var id = layer in this._layers ? layer : this.getLayerId(layer);
4300
4301                 if (this._map && this._layers[id]) {
4302                         this._map.removeLayer(this._layers[id]);
4303                 }
4304
4305                 delete this._layers[id];
4306
4307                 return this;
4308         },
4309
4310         hasLayer: function (layer) {
4311                 if (!layer) { return false; }
4312
4313                 return (layer in this._layers || this.getLayerId(layer) in this._layers);
4314         },
4315
4316         clearLayers: function () {
4317                 this.eachLayer(this.removeLayer, this);
4318                 return this;
4319         },
4320
4321         invoke: function (methodName) {
4322                 var args = Array.prototype.slice.call(arguments, 1),
4323                     i, layer;
4324
4325                 for (i in this._layers) {
4326                         layer = this._layers[i];
4327
4328                         if (layer[methodName]) {
4329                                 layer[methodName].apply(layer, args);
4330                         }
4331                 }
4332
4333                 return this;
4334         },
4335
4336         onAdd: function (map) {
4337                 this._map = map;
4338                 this.eachLayer(map.addLayer, map);
4339         },
4340
4341         onRemove: function (map) {
4342                 this.eachLayer(map.removeLayer, map);
4343                 this._map = null;
4344         },
4345
4346         addTo: function (map) {
4347                 map.addLayer(this);
4348                 return this;
4349         },
4350
4351         eachLayer: function (method, context) {
4352                 for (var i in this._layers) {
4353                         method.call(context, this._layers[i]);
4354                 }
4355                 return this;
4356         },
4357
4358         getLayer: function (id) {
4359                 return this._layers[id];
4360         },
4361
4362         getLayers: function () {
4363                 var layers = [];
4364
4365                 for (var i in this._layers) {
4366                         layers.push(this._layers[i]);
4367                 }
4368                 return layers;
4369         },
4370
4371         setZIndex: function (zIndex) {
4372                 return this.invoke('setZIndex', zIndex);
4373         },
4374
4375         getLayerId: function (layer) {
4376                 return L.stamp(layer);
4377         }
4378 });
4379
4380 L.layerGroup = function (layers) {
4381         return new L.LayerGroup(layers);
4382 };
4383
4384
4385 /*
4386  * L.FeatureGroup extends L.LayerGroup by introducing mouse events and additional methods
4387  * shared between a group of interactive layers (like vectors or markers).
4388  */
4389
4390 L.FeatureGroup = L.LayerGroup.extend({
4391         includes: L.Mixin.Events,
4392
4393         statics: {
4394                 EVENTS: 'click dblclick mouseover mouseout mousemove contextmenu popupopen popupclose'
4395         },
4396
4397         addLayer: function (layer) {
4398                 if (this.hasLayer(layer)) {
4399                         return this;
4400                 }
4401
4402                 if ('on' in layer) {
4403                         layer.on(L.FeatureGroup.EVENTS, this._propagateEvent, this);
4404                 }
4405
4406                 L.LayerGroup.prototype.addLayer.call(this, layer);
4407
4408                 if (this._popupContent && layer.bindPopup) {
4409                         layer.bindPopup(this._popupContent, this._popupOptions);
4410                 }
4411
4412                 return this.fire('layeradd', {layer: layer});
4413         },
4414
4415         removeLayer: function (layer) {
4416                 if (!this.hasLayer(layer)) {
4417                         return this;
4418                 }
4419                 if (layer in this._layers) {
4420                         layer = this._layers[layer];
4421                 }
4422
4423                 layer.off(L.FeatureGroup.EVENTS, this._propagateEvent, this);
4424
4425                 L.LayerGroup.prototype.removeLayer.call(this, layer);
4426
4427                 if (this._popupContent) {
4428                         this.invoke('unbindPopup');
4429                 }
4430
4431                 return this.fire('layerremove', {layer: layer});
4432         },
4433
4434         bindPopup: function (content, options) {
4435                 this._popupContent = content;
4436                 this._popupOptions = options;
4437                 return this.invoke('bindPopup', content, options);
4438         },
4439
4440         openPopup: function (latlng) {
4441                 // open popup on the first layer
4442                 for (var id in this._layers) {
4443                         this._layers[id].openPopup(latlng);
4444                         break;
4445                 }
4446                 return this;
4447         },
4448
4449         setStyle: function (style) {
4450                 return this.invoke('setStyle', style);
4451         },
4452
4453         bringToFront: function () {
4454                 return this.invoke('bringToFront');
4455         },
4456
4457         bringToBack: function () {
4458                 return this.invoke('bringToBack');
4459         },
4460
4461         getBounds: function () {
4462                 var bounds = new L.LatLngBounds();
4463
4464                 this.eachLayer(function (layer) {
4465                         bounds.extend(layer instanceof L.Marker ? layer.getLatLng() : layer.getBounds());
4466                 });
4467
4468                 return bounds;
4469         },
4470
4471         _propagateEvent: function (e) {
4472                 e = L.extend({
4473                         layer: e.target,
4474                         target: this
4475                 }, e);
4476                 this.fire(e.type, e);
4477         }
4478 });
4479
4480 L.featureGroup = function (layers) {
4481         return new L.FeatureGroup(layers);
4482 };
4483
4484
4485 /*
4486  * L.Path is a base class for rendering vector paths on a map. Inherited by Polyline, Circle, etc.
4487  */
4488
4489 L.Path = L.Class.extend({
4490         includes: [L.Mixin.Events],
4491
4492         statics: {
4493                 // how much to extend the clip area around the map view
4494                 // (relative to its size, e.g. 0.5 is half the screen in each direction)
4495                 // set it so that SVG element doesn't exceed 1280px (vectors flicker on dragend if it is)
4496                 CLIP_PADDING: (function () {
4497                         var max = L.Browser.mobile ? 1280 : 2000,
4498                             target = (max / Math.max(window.outerWidth, window.outerHeight) - 1) / 2;
4499                         return Math.max(0, Math.min(0.5, target));
4500                 })()
4501         },
4502
4503         options: {
4504                 stroke: true,
4505                 color: '#0033ff',
4506                 dashArray: null,
4507                 lineCap: null,
4508                 lineJoin: null,
4509                 weight: 5,
4510                 opacity: 0.5,
4511
4512                 fill: false,
4513                 fillColor: null, //same as color by default
4514                 fillOpacity: 0.2,
4515
4516                 clickable: true
4517         },
4518
4519         initialize: function (options) {
4520                 L.setOptions(this, options);
4521         },
4522
4523         onAdd: function (map) {
4524                 this._map = map;
4525
4526                 if (!this._container) {
4527                         this._initElements();
4528                         this._initEvents();
4529                 }
4530
4531                 this.projectLatlngs();
4532                 this._updatePath();
4533
4534                 if (this._container) {
4535                         this._map._pathRoot.appendChild(this._container);
4536                 }
4537
4538                 this.fire('add');
4539
4540                 map.on({
4541                         'viewreset': this.projectLatlngs,
4542                         'moveend': this._updatePath
4543                 }, this);
4544         },
4545
4546         addTo: function (map) {
4547                 map.addLayer(this);
4548                 return this;
4549         },
4550
4551         onRemove: function (map) {
4552                 map._pathRoot.removeChild(this._container);
4553
4554                 // Need to fire remove event before we set _map to null as the event hooks might need the object
4555                 this.fire('remove');
4556                 this._map = null;
4557
4558                 if (L.Browser.vml) {
4559                         this._container = null;
4560                         this._stroke = null;
4561                         this._fill = null;
4562                 }
4563
4564                 map.off({
4565                         'viewreset': this.projectLatlngs,
4566                         'moveend': this._updatePath
4567                 }, this);
4568         },
4569
4570         projectLatlngs: function () {
4571                 // do all projection stuff here
4572         },
4573
4574         setStyle: function (style) {
4575                 L.setOptions(this, style);
4576
4577                 if (this._container) {
4578                         this._updateStyle();
4579                 }
4580
4581                 return this;
4582         },
4583
4584         redraw: function () {
4585                 if (this._map) {
4586                         this.projectLatlngs();
4587                         this._updatePath();
4588                 }
4589                 return this;
4590         }
4591 });
4592
4593 L.Map.include({
4594         _updatePathViewport: function () {
4595                 var p = L.Path.CLIP_PADDING,
4596                     size = this.getSize(),
4597                     panePos = L.DomUtil.getPosition(this._mapPane),
4598                     min = panePos.multiplyBy(-1)._subtract(size.multiplyBy(p)._round()),
4599                     max = min.add(size.multiplyBy(1 + p * 2)._round());
4600
4601                 this._pathViewport = new L.Bounds(min, max);
4602         }
4603 });
4604
4605
4606 /*
4607  * Extends L.Path with SVG-specific rendering code.
4608  */
4609
4610 L.Path.SVG_NS = 'http://www.w3.org/2000/svg';
4611
4612 L.Browser.svg = !!(document.createElementNS && document.createElementNS(L.Path.SVG_NS, 'svg').createSVGRect);
4613
4614 L.Path = L.Path.extend({
4615         statics: {
4616                 SVG: L.Browser.svg
4617         },
4618
4619         bringToFront: function () {
4620                 var root = this._map._pathRoot,
4621                     path = this._container;
4622
4623                 if (path && root.lastChild !== path) {
4624                         root.appendChild(path);
4625                 }
4626                 return this;
4627         },
4628
4629         bringToBack: function () {
4630                 var root = this._map._pathRoot,
4631                     path = this._container,
4632                     first = root.firstChild;
4633
4634                 if (path && first !== path) {
4635                         root.insertBefore(path, first);
4636                 }
4637                 return this;
4638         },
4639
4640         getPathString: function () {
4641                 // form path string here
4642         },
4643
4644         _createElement: function (name) {
4645                 return document.createElementNS(L.Path.SVG_NS, name);
4646         },
4647
4648         _initElements: function () {
4649                 this._map._initPathRoot();
4650                 this._initPath();
4651                 this._initStyle();
4652         },
4653
4654         _initPath: function () {
4655                 this._container = this._createElement('g');
4656
4657                 this._path = this._createElement('path');
4658
4659                 if (this.options.className) {
4660                         L.DomUtil.addClass(this._path, this.options.className);
4661                 }
4662
4663                 this._container.appendChild(this._path);
4664         },
4665
4666         _initStyle: function () {
4667                 if (this.options.stroke) {
4668                         this._path.setAttribute('stroke-linejoin', 'round');
4669                         this._path.setAttribute('stroke-linecap', 'round');
4670                 }
4671                 if (this.options.fill) {
4672                         this._path.setAttribute('fill-rule', 'evenodd');
4673                 }
4674                 if (this.options.pointerEvents) {
4675                         this._path.setAttribute('pointer-events', this.options.pointerEvents);
4676                 }
4677                 if (!this.options.clickable && !this.options.pointerEvents) {
4678                         this._path.setAttribute('pointer-events', 'none');
4679                 }
4680                 this._updateStyle();
4681         },
4682
4683         _updateStyle: function () {
4684                 if (this.options.stroke) {
4685                         this._path.setAttribute('stroke', this.options.color);
4686                         this._path.setAttribute('stroke-opacity', this.options.opacity);
4687                         this._path.setAttribute('stroke-width', this.options.weight);
4688                         if (this.options.dashArray) {
4689                                 this._path.setAttribute('stroke-dasharray', this.options.dashArray);
4690                         } else {
4691                                 this._path.removeAttribute('stroke-dasharray');
4692                         }
4693                         if (this.options.lineCap) {
4694                                 this._path.setAttribute('stroke-linecap', this.options.lineCap);
4695                         }
4696                         if (this.options.lineJoin) {
4697                                 this._path.setAttribute('stroke-linejoin', this.options.lineJoin);
4698                         }
4699                 } else {
4700                         this._path.setAttribute('stroke', 'none');
4701                 }
4702                 if (this.options.fill) {
4703                         this._path.setAttribute('fill', this.options.fillColor || this.options.color);
4704                         this._path.setAttribute('fill-opacity', this.options.fillOpacity);
4705                 } else {
4706                         this._path.setAttribute('fill', 'none');
4707                 }
4708         },
4709
4710         _updatePath: function () {
4711                 var str = this.getPathString();
4712                 if (!str) {
4713                         // fix webkit empty string parsing bug
4714                         str = 'M0 0';
4715                 }
4716                 this._path.setAttribute('d', str);
4717         },
4718
4719         // TODO remove duplication with L.Map
4720         _initEvents: function () {
4721                 if (this.options.clickable) {
4722                         if (L.Browser.svg || !L.Browser.vml) {
4723                                 L.DomUtil.addClass(this._path, 'leaflet-clickable');
4724                         }
4725
4726                         L.DomEvent.on(this._container, 'click', this._onMouseClick, this);
4727
4728                         var events = ['dblclick', 'mousedown', 'mouseover',
4729                                       'mouseout', 'mousemove', 'contextmenu'];
4730                         for (var i = 0; i < events.length; i++) {
4731                                 L.DomEvent.on(this._container, events[i], this._fireMouseEvent, this);
4732                         }
4733                 }
4734         },
4735
4736         _onMouseClick: function (e) {
4737                 if (this._map.dragging && this._map.dragging.moved()) { return; }
4738
4739                 this._fireMouseEvent(e);
4740         },
4741
4742         _fireMouseEvent: function (e) {
4743                 if (!this.hasEventListeners(e.type)) { return; }
4744
4745                 var map = this._map,
4746                     containerPoint = map.mouseEventToContainerPoint(e),
4747                     layerPoint = map.containerPointToLayerPoint(containerPoint),
4748                     latlng = map.layerPointToLatLng(layerPoint);
4749
4750                 this.fire(e.type, {
4751                         latlng: latlng,
4752                         layerPoint: layerPoint,
4753                         containerPoint: containerPoint,
4754                         originalEvent: e
4755                 });
4756
4757                 if (e.type === 'contextmenu') {
4758                         L.DomEvent.preventDefault(e);
4759                 }
4760                 if (e.type !== 'mousemove') {
4761                         L.DomEvent.stopPropagation(e);
4762                 }
4763         }
4764 });
4765
4766 L.Map.include({
4767         _initPathRoot: function () {
4768                 if (!this._pathRoot) {
4769                         this._pathRoot = L.Path.prototype._createElement('svg');
4770                         this._panes.overlayPane.appendChild(this._pathRoot);
4771
4772                         if (this.options.zoomAnimation && L.Browser.any3d) {
4773                                 L.DomUtil.addClass(this._pathRoot, 'leaflet-zoom-animated');
4774
4775                                 this.on({
4776                                         'zoomanim': this._animatePathZoom,
4777                                         'zoomend': this._endPathZoom
4778                                 });
4779                         } else {
4780                                 L.DomUtil.addClass(this._pathRoot, 'leaflet-zoom-hide');
4781                         }
4782
4783                         this.on('moveend', this._updateSvgViewport);
4784                         this._updateSvgViewport();
4785                 }
4786         },
4787
4788         _animatePathZoom: function (e) {
4789                 var scale = this.getZoomScale(e.zoom),
4790                     offset = this._getCenterOffset(e.center)._multiplyBy(-scale)._add(this._pathViewport.min);
4791
4792                 this._pathRoot.style[L.DomUtil.TRANSFORM] =
4793                         L.DomUtil.getTranslateString(offset) + ' scale(' + scale + ') ';
4794
4795                 this._pathZooming = true;
4796         },
4797
4798         _endPathZoom: function () {
4799                 this._pathZooming = false;
4800         },
4801
4802         _updateSvgViewport: function () {
4803
4804                 if (this._pathZooming) {
4805                         // Do not update SVGs while a zoom animation is going on otherwise the animation will break.
4806                         // When the zoom animation ends we will be updated again anyway
4807                         // This fixes the case where you do a momentum move and zoom while the move is still ongoing.
4808                         return;
4809                 }
4810
4811                 this._updatePathViewport();
4812
4813                 var vp = this._pathViewport,
4814                     min = vp.min,
4815                     max = vp.max,
4816                     width = max.x - min.x,
4817                     height = max.y - min.y,
4818                     root = this._pathRoot,
4819                     pane = this._panes.overlayPane;
4820
4821                 // Hack to make flicker on drag end on mobile webkit less irritating
4822                 if (L.Browser.mobileWebkit) {
4823                         pane.removeChild(root);
4824                 }
4825
4826                 L.DomUtil.setPosition(root, min);
4827                 root.setAttribute('width', width);
4828                 root.setAttribute('height', height);
4829                 root.setAttribute('viewBox', [min.x, min.y, width, height].join(' '));
4830
4831                 if (L.Browser.mobileWebkit) {
4832                         pane.appendChild(root);
4833                 }
4834         }
4835 });
4836
4837
4838 /*
4839  * Popup extension to L.Path (polylines, polygons, circles), adding popup-related methods.
4840  */
4841
4842 L.Path.include({
4843
4844         bindPopup: function (content, options) {
4845
4846                 if (content instanceof L.Popup) {
4847                         this._popup = content;
4848                 } else {
4849                         if (!this._popup || options) {
4850                                 this._popup = new L.Popup(options, this);
4851                         }
4852                         this._popup.setContent(content);
4853                 }
4854
4855                 if (!this._popupHandlersAdded) {
4856                         this
4857                             .on('click', this._openPopup, this)
4858                             .on('remove', this.closePopup, this);
4859
4860                         this._popupHandlersAdded = true;
4861                 }
4862
4863                 return this;
4864         },
4865
4866         unbindPopup: function () {
4867                 if (this._popup) {
4868                         this._popup = null;
4869                         this
4870                             .off('click', this._openPopup)
4871                             .off('remove', this.closePopup);
4872
4873                         this._popupHandlersAdded = false;
4874                 }
4875                 return this;
4876         },
4877
4878         openPopup: function (latlng) {
4879
4880                 if (this._popup) {
4881                         // open the popup from one of the path's points if not specified
4882                         latlng = latlng || this._latlng ||
4883                                  this._latlngs[Math.floor(this._latlngs.length / 2)];
4884
4885                         this._openPopup({latlng: latlng});
4886                 }
4887
4888                 return this;
4889         },
4890
4891         closePopup: function () {
4892                 if (this._popup) {
4893                         this._popup._close();
4894                 }
4895                 return this;
4896         },
4897
4898         _openPopup: function (e) {
4899                 this._popup.setLatLng(e.latlng);
4900                 this._map.openPopup(this._popup);
4901         }
4902 });
4903
4904
4905 /*
4906  * Vector rendering for IE6-8 through VML.
4907  * Thanks to Dmitry Baranovsky and his Raphael library for inspiration!
4908  */
4909
4910 L.Browser.vml = !L.Browser.svg && (function () {
4911         try {
4912                 var div = document.createElement('div');
4913                 div.innerHTML = '<v:shape adj="1"/>';
4914
4915                 var shape = div.firstChild;
4916                 shape.style.behavior = 'url(#default#VML)';
4917
4918                 return shape && (typeof shape.adj === 'object');
4919
4920         } catch (e) {
4921                 return false;
4922         }
4923 }());
4924
4925 L.Path = L.Browser.svg || !L.Browser.vml ? L.Path : L.Path.extend({
4926         statics: {
4927                 VML: true,
4928                 CLIP_PADDING: 0.02
4929         },
4930
4931         _createElement: (function () {
4932                 try {
4933                         document.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml');
4934                         return function (name) {
4935                                 return document.createElement('<lvml:' + name + ' class="lvml">');
4936                         };
4937                 } catch (e) {
4938                         return function (name) {
4939                                 return document.createElement(
4940                                         '<' + name + ' xmlns="urn:schemas-microsoft.com:vml" class="lvml">');
4941                         };
4942                 }
4943         }()),
4944
4945         _initPath: function () {
4946                 var container = this._container = this._createElement('shape');
4947
4948                 L.DomUtil.addClass(container, 'leaflet-vml-shape' +
4949                         (this.options.className ? ' ' + this.options.className : ''));
4950
4951                 if (this.options.clickable) {
4952                         L.DomUtil.addClass(container, 'leaflet-clickable');
4953                 }
4954
4955                 container.coordsize = '1 1';
4956
4957                 this._path = this._createElement('path');
4958                 container.appendChild(this._path);
4959
4960                 this._map._pathRoot.appendChild(container);
4961         },
4962
4963         _initStyle: function () {
4964                 this._updateStyle();
4965         },
4966
4967         _updateStyle: function () {
4968                 var stroke = this._stroke,
4969                     fill = this._fill,
4970                     options = this.options,
4971                     container = this._container;
4972
4973                 container.stroked = options.stroke;
4974                 container.filled = options.fill;
4975
4976                 if (options.stroke) {
4977                         if (!stroke) {
4978                                 stroke = this._stroke = this._createElement('stroke');
4979                                 stroke.endcap = 'round';
4980                                 container.appendChild(stroke);
4981                         }
4982                         stroke.weight = options.weight + 'px';
4983                         stroke.color = options.color;
4984                         stroke.opacity = options.opacity;
4985
4986                         if (options.dashArray) {
4987                                 stroke.dashStyle = L.Util.isArray(options.dashArray) ?
4988                                     options.dashArray.join(' ') :
4989                                     options.dashArray.replace(/( *, *)/g, ' ');
4990                         } else {
4991                                 stroke.dashStyle = '';
4992                         }
4993                         if (options.lineCap) {
4994                                 stroke.endcap = options.lineCap.replace('butt', 'flat');
4995                         }
4996                         if (options.lineJoin) {
4997                                 stroke.joinstyle = options.lineJoin;
4998                         }
4999
5000                 } else if (stroke) {
5001                         container.removeChild(stroke);
5002                         this._stroke = null;
5003                 }
5004
5005                 if (options.fill) {
5006                         if (!fill) {
5007                                 fill = this._fill = this._createElement('fill');
5008                                 container.appendChild(fill);
5009                         }
5010                         fill.color = options.fillColor || options.color;
5011                         fill.opacity = options.fillOpacity;
5012
5013                 } else if (fill) {
5014                         container.removeChild(fill);
5015                         this._fill = null;
5016                 }
5017         },
5018
5019         _updatePath: function () {
5020                 var style = this._container.style;
5021
5022                 style.display = 'none';
5023                 this._path.v = this.getPathString() + ' '; // the space fixes IE empty path string bug
5024                 style.display = '';
5025         }
5026 });
5027
5028 L.Map.include(L.Browser.svg || !L.Browser.vml ? {} : {
5029         _initPathRoot: function () {
5030                 if (this._pathRoot) { return; }
5031
5032                 var root = this._pathRoot = document.createElement('div');
5033                 root.className = 'leaflet-vml-container';
5034                 this._panes.overlayPane.appendChild(root);
5035
5036                 this.on('moveend', this._updatePathViewport);
5037                 this._updatePathViewport();
5038         }
5039 });
5040
5041
5042 /*
5043  * Vector rendering for all browsers that support canvas.
5044  */
5045
5046 L.Browser.canvas = (function () {
5047         return !!document.createElement('canvas').getContext;
5048 }());
5049
5050 L.Path = (L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? L.Path : L.Path.extend({
5051         statics: {
5052                 //CLIP_PADDING: 0.02, // not sure if there's a need to set it to a small value
5053                 CANVAS: true,
5054                 SVG: false
5055         },
5056
5057         redraw: function () {
5058                 if (this._map) {
5059                         this.projectLatlngs();
5060                         this._requestUpdate();
5061                 }
5062                 return this;
5063         },
5064
5065         setStyle: function (style) {
5066                 L.setOptions(this, style);
5067
5068                 if (this._map) {
5069                         this._updateStyle();
5070                         this._requestUpdate();
5071                 }
5072                 return this;
5073         },
5074
5075         onRemove: function (map) {
5076                 map
5077                     .off('viewreset', this.projectLatlngs, this)
5078                     .off('moveend', this._updatePath, this);
5079
5080                 if (this.options.clickable) {
5081                         this._map.off('click', this._onClick, this);
5082                         this._map.off('mousemove', this._onMouseMove, this);
5083                 }
5084
5085                 this._requestUpdate();
5086
5087                 this.fire('remove');
5088                 this._map = null;
5089         },
5090
5091         _requestUpdate: function () {
5092                 if (this._map && !L.Path._updateRequest) {
5093                         L.Path._updateRequest = L.Util.requestAnimFrame(this._fireMapMoveEnd, this._map);
5094                 }
5095         },
5096
5097         _fireMapMoveEnd: function () {
5098                 L.Path._updateRequest = null;
5099                 this.fire('moveend');
5100         },
5101
5102         _initElements: function () {
5103                 this._map._initPathRoot();
5104                 this._ctx = this._map._canvasCtx;
5105         },
5106
5107         _updateStyle: function () {
5108                 var options = this.options;
5109
5110                 if (options.stroke) {
5111                         this._ctx.lineWidth = options.weight;
5112                         this._ctx.strokeStyle = options.color;
5113                 }
5114                 if (options.fill) {
5115                         this._ctx.fillStyle = options.fillColor || options.color;
5116                 }
5117         },
5118
5119         _drawPath: function () {
5120                 var i, j, len, len2, point, drawMethod;
5121
5122                 this._ctx.beginPath();
5123
5124                 for (i = 0, len = this._parts.length; i < len; i++) {
5125                         for (j = 0, len2 = this._parts[i].length; j < len2; j++) {
5126                                 point = this._parts[i][j];
5127                                 drawMethod = (j === 0 ? 'move' : 'line') + 'To';
5128
5129                                 this._ctx[drawMethod](point.x, point.y);
5130                         }
5131                         // TODO refactor ugly hack
5132                         if (this instanceof L.Polygon) {
5133                                 this._ctx.closePath();
5134                         }
5135                 }
5136         },
5137
5138         _checkIfEmpty: function () {
5139                 return !this._parts.length;
5140         },
5141
5142         _updatePath: function () {
5143                 if (this._checkIfEmpty()) { return; }
5144
5145                 var ctx = this._ctx,
5146                     options = this.options;
5147
5148                 this._drawPath();
5149                 ctx.save();
5150                 this._updateStyle();
5151
5152                 if (options.fill) {
5153                         ctx.globalAlpha = options.fillOpacity;
5154                         ctx.fill();
5155                 }
5156
5157                 if (options.stroke) {
5158                         ctx.globalAlpha = options.opacity;
5159                         ctx.stroke();
5160                 }
5161
5162                 ctx.restore();
5163
5164                 // TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature
5165         },
5166
5167         _initEvents: function () {
5168                 if (this.options.clickable) {
5169                         // TODO dblclick
5170                         this._map.on('mousemove', this._onMouseMove, this);
5171                         this._map.on('click', this._onClick, this);
5172                 }
5173         },
5174
5175         _onClick: function (e) {
5176                 if (this._containsPoint(e.layerPoint)) {
5177                         this.fire('click', e);
5178                 }
5179         },
5180
5181         _onMouseMove: function (e) {
5182                 if (!this._map || this._map._animatingZoom) { return; }
5183
5184                 // TODO don't do on each move
5185                 if (this._containsPoint(e.layerPoint)) {
5186                         this._ctx.canvas.style.cursor = 'pointer';
5187                         this._mouseInside = true;
5188                         this.fire('mouseover', e);
5189
5190                 } else if (this._mouseInside) {
5191                         this._ctx.canvas.style.cursor = '';
5192                         this._mouseInside = false;
5193                         this.fire('mouseout', e);
5194                 }
5195         }
5196 });
5197
5198 L.Map.include((L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? {} : {
5199         _initPathRoot: function () {
5200                 var root = this._pathRoot,
5201                     ctx;
5202
5203                 if (!root) {
5204                         root = this._pathRoot = document.createElement('canvas');
5205                         root.style.position = 'absolute';
5206                         ctx = this._canvasCtx = root.getContext('2d');
5207
5208                         ctx.lineCap = 'round';
5209                         ctx.lineJoin = 'round';
5210
5211                         this._panes.overlayPane.appendChild(root);
5212
5213                         if (this.options.zoomAnimation) {
5214                                 this._pathRoot.className = 'leaflet-zoom-animated';
5215                                 this.on('zoomanim', this._animatePathZoom);
5216                                 this.on('zoomend', this._endPathZoom);
5217                         }
5218                         this.on('moveend', this._updateCanvasViewport);
5219                         this._updateCanvasViewport();
5220                 }
5221         },
5222
5223         _updateCanvasViewport: function () {
5224                 // don't redraw while zooming. See _updateSvgViewport for more details
5225                 if (this._pathZooming) { return; }
5226                 this._updatePathViewport();
5227
5228                 var vp = this._pathViewport,
5229                     min = vp.min,
5230                     size = vp.max.subtract(min),
5231                     root = this._pathRoot;
5232
5233                 //TODO check if this works properly on mobile webkit
5234                 L.DomUtil.setPosition(root, min);
5235                 root.width = size.x;
5236                 root.height = size.y;
5237                 root.getContext('2d').translate(-min.x, -min.y);
5238         }
5239 });
5240
5241
5242 /*
5243  * L.LineUtil contains different utility functions for line segments
5244  * and polylines (clipping, simplification, distances, etc.)
5245  */
5246
5247 /*jshint bitwise:false */ // allow bitwise operations for this file
5248
5249 L.LineUtil = {
5250
5251         // Simplify polyline with vertex reduction and Douglas-Peucker simplification.
5252         // Improves rendering performance dramatically by lessening the number of points to draw.
5253
5254         simplify: function (/*Point[]*/ points, /*Number*/ tolerance) {
5255                 if (!tolerance || !points.length) {
5256                         return points.slice();
5257                 }
5258
5259                 var sqTolerance = tolerance * tolerance;
5260
5261                 // stage 1: vertex reduction
5262                 points = this._reducePoints(points, sqTolerance);
5263
5264                 // stage 2: Douglas-Peucker simplification
5265                 points = this._simplifyDP(points, sqTolerance);
5266
5267                 return points;
5268         },
5269
5270         // distance from a point to a segment between two points
5271         pointToSegmentDistance:  function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
5272                 return Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true));
5273         },
5274
5275         closestPointOnSegment: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
5276                 return this._sqClosestPointOnSegment(p, p1, p2);
5277         },
5278
5279         // Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm
5280         _simplifyDP: function (points, sqTolerance) {
5281
5282                 var len = points.length,
5283                     ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array,
5284                     markers = new ArrayConstructor(len);
5285
5286                 markers[0] = markers[len - 1] = 1;
5287
5288                 this._simplifyDPStep(points, markers, sqTolerance, 0, len - 1);
5289
5290                 var i,
5291                     newPoints = [];
5292
5293                 for (i = 0; i < len; i++) {
5294                         if (markers[i]) {
5295                                 newPoints.push(points[i]);
5296                         }
5297                 }
5298
5299                 return newPoints;
5300         },
5301
5302         _simplifyDPStep: function (points, markers, sqTolerance, first, last) {
5303
5304                 var maxSqDist = 0,
5305                     index, i, sqDist;
5306
5307                 for (i = first + 1; i <= last - 1; i++) {
5308                         sqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true);
5309
5310                         if (sqDist > maxSqDist) {
5311                                 index = i;
5312                                 maxSqDist = sqDist;
5313                         }
5314                 }
5315
5316                 if (maxSqDist > sqTolerance) {
5317                         markers[index] = 1;
5318
5319                         this._simplifyDPStep(points, markers, sqTolerance, first, index);
5320                         this._simplifyDPStep(points, markers, sqTolerance, index, last);
5321                 }
5322         },
5323
5324         // reduce points that are too close to each other to a single point
5325         _reducePoints: function (points, sqTolerance) {
5326                 var reducedPoints = [points[0]];
5327
5328                 for (var i = 1, prev = 0, len = points.length; i < len; i++) {
5329                         if (this._sqDist(points[i], points[prev]) > sqTolerance) {
5330                                 reducedPoints.push(points[i]);
5331                                 prev = i;
5332                         }
5333                 }
5334                 if (prev < len - 1) {
5335                         reducedPoints.push(points[len - 1]);
5336                 }
5337                 return reducedPoints;
5338         },
5339
5340         // Cohen-Sutherland line clipping algorithm.
5341         // Used to avoid rendering parts of a polyline that are not currently visible.
5342
5343         clipSegment: function (a, b, bounds, useLastCode) {
5344                 var codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds),
5345                     codeB = this._getBitCode(b, bounds),
5346
5347                     codeOut, p, newCode;
5348
5349                 // save 2nd code to avoid calculating it on the next segment
5350                 this._lastCode = codeB;
5351
5352                 while (true) {
5353                         // if a,b is inside the clip window (trivial accept)
5354                         if (!(codeA | codeB)) {
5355                                 return [a, b];
5356                         // if a,b is outside the clip window (trivial reject)
5357                         } else if (codeA & codeB) {
5358                                 return false;
5359                         // other cases
5360                         } else {
5361                                 codeOut = codeA || codeB;
5362                                 p = this._getEdgeIntersection(a, b, codeOut, bounds);
5363                                 newCode = this._getBitCode(p, bounds);
5364
5365                                 if (codeOut === codeA) {
5366                                         a = p;
5367                                         codeA = newCode;
5368                                 } else {
5369                                         b = p;
5370                                         codeB = newCode;
5371                                 }
5372                         }
5373                 }
5374         },
5375
5376         _getEdgeIntersection: function (a, b, code, bounds) {
5377                 var dx = b.x - a.x,
5378                     dy = b.y - a.y,
5379                     min = bounds.min,
5380                     max = bounds.max;
5381
5382                 if (code & 8) { // top
5383                         return new L.Point(a.x + dx * (max.y - a.y) / dy, max.y);
5384                 } else if (code & 4) { // bottom
5385                         return new L.Point(a.x + dx * (min.y - a.y) / dy, min.y);
5386                 } else if (code & 2) { // right
5387                         return new L.Point(max.x, a.y + dy * (max.x - a.x) / dx);
5388                 } else if (code & 1) { // left
5389                         return new L.Point(min.x, a.y + dy * (min.x - a.x) / dx);
5390                 }
5391         },
5392
5393         _getBitCode: function (/*Point*/ p, bounds) {
5394                 var code = 0;
5395
5396                 if (p.x < bounds.min.x) { // left
5397                         code |= 1;
5398                 } else if (p.x > bounds.max.x) { // right
5399                         code |= 2;
5400                 }
5401                 if (p.y < bounds.min.y) { // bottom
5402                         code |= 4;
5403                 } else if (p.y > bounds.max.y) { // top
5404                         code |= 8;
5405                 }
5406
5407                 return code;
5408         },
5409
5410         // square distance (to avoid unnecessary Math.sqrt calls)
5411         _sqDist: function (p1, p2) {
5412                 var dx = p2.x - p1.x,
5413                     dy = p2.y - p1.y;
5414                 return dx * dx + dy * dy;
5415         },
5416
5417         // return closest point on segment or distance to that point
5418         _sqClosestPointOnSegment: function (p, p1, p2, sqDist) {
5419                 var x = p1.x,
5420                     y = p1.y,
5421                     dx = p2.x - x,
5422                     dy = p2.y - y,
5423                     dot = dx * dx + dy * dy,
5424                     t;
5425
5426                 if (dot > 0) {
5427                         t = ((p.x - x) * dx + (p.y - y) * dy) / dot;
5428
5429                         if (t > 1) {
5430                                 x = p2.x;
5431                                 y = p2.y;
5432                         } else if (t > 0) {
5433                                 x += dx * t;
5434                                 y += dy * t;
5435                         }
5436                 }
5437
5438                 dx = p.x - x;
5439                 dy = p.y - y;
5440
5441                 return sqDist ? dx * dx + dy * dy : new L.Point(x, y);
5442         }
5443 };
5444
5445
5446 /*
5447  * L.Polyline is used to display polylines on a map.
5448  */
5449
5450 L.Polyline = L.Path.extend({
5451         initialize: function (latlngs, options) {
5452                 L.Path.prototype.initialize.call(this, options);
5453
5454                 this._latlngs = this._convertLatLngs(latlngs);
5455         },
5456
5457         options: {
5458                 // how much to simplify the polyline on each zoom level
5459                 // more = better performance and smoother look, less = more accurate
5460                 smoothFactor: 1.0,
5461                 noClip: false
5462         },
5463
5464         projectLatlngs: function () {
5465                 this._originalPoints = [];
5466
5467                 for (var i = 0, len = this._latlngs.length; i < len; i++) {
5468                         this._originalPoints[i] = this._map.latLngToLayerPoint(this._latlngs[i]);
5469                 }
5470         },
5471
5472         getPathString: function () {
5473                 for (var i = 0, len = this._parts.length, str = ''; i < len; i++) {
5474                         str += this._getPathPartStr(this._parts[i]);
5475                 }
5476                 return str;
5477         },
5478
5479         getLatLngs: function () {
5480                 return this._latlngs;
5481         },
5482
5483         setLatLngs: function (latlngs) {
5484                 this._latlngs = this._convertLatLngs(latlngs);
5485                 return this.redraw();
5486         },
5487
5488         addLatLng: function (latlng) {
5489                 this._latlngs.push(L.latLng(latlng));
5490                 return this.redraw();
5491         },
5492
5493         spliceLatLngs: function () { // (Number index, Number howMany)
5494                 var removed = [].splice.apply(this._latlngs, arguments);
5495                 this._convertLatLngs(this._latlngs, true);
5496                 this.redraw();
5497                 return removed;
5498         },
5499
5500         closestLayerPoint: function (p) {
5501                 var minDistance = Infinity, parts = this._parts, p1, p2, minPoint = null;
5502
5503                 for (var j = 0, jLen = parts.length; j < jLen; j++) {
5504                         var points = parts[j];
5505                         for (var i = 1, len = points.length; i < len; i++) {
5506                                 p1 = points[i - 1];
5507                                 p2 = points[i];
5508                                 var sqDist = L.LineUtil._sqClosestPointOnSegment(p, p1, p2, true);
5509                                 if (sqDist < minDistance) {
5510                                         minDistance = sqDist;
5511                                         minPoint = L.LineUtil._sqClosestPointOnSegment(p, p1, p2);
5512                                 }
5513                         }
5514                 }
5515                 if (minPoint) {
5516                         minPoint.distance = Math.sqrt(minDistance);
5517                 }
5518                 return minPoint;
5519         },
5520
5521         getBounds: function () {
5522                 return new L.LatLngBounds(this.getLatLngs());
5523         },
5524
5525         _convertLatLngs: function (latlngs, overwrite) {
5526                 var i, len, target = overwrite ? latlngs : [];
5527
5528                 for (i = 0, len = latlngs.length; i < len; i++) {
5529                         if (L.Util.isArray(latlngs[i]) && typeof latlngs[i][0] !== 'number') {
5530                                 return;
5531                         }
5532                         target[i] = L.latLng(latlngs[i]);
5533                 }
5534                 return target;
5535         },
5536
5537         _initEvents: function () {
5538                 L.Path.prototype._initEvents.call(this);
5539         },
5540
5541         _getPathPartStr: function (points) {
5542                 var round = L.Path.VML;
5543
5544                 for (var j = 0, len2 = points.length, str = '', p; j < len2; j++) {
5545                         p = points[j];
5546                         if (round) {
5547                                 p._round();
5548                         }
5549                         str += (j ? 'L' : 'M') + p.x + ' ' + p.y;
5550                 }
5551                 return str;
5552         },
5553
5554         _clipPoints: function () {
5555                 var points = this._originalPoints,
5556                     len = points.length,
5557                     i, k, segment;
5558
5559                 if (this.options.noClip) {
5560                         this._parts = [points];
5561                         return;
5562                 }
5563
5564                 this._parts = [];
5565
5566                 var parts = this._parts,
5567                     vp = this._map._pathViewport,
5568                     lu = L.LineUtil;
5569
5570                 for (i = 0, k = 0; i < len - 1; i++) {
5571                         segment = lu.clipSegment(points[i], points[i + 1], vp, i);
5572                         if (!segment) {
5573                                 continue;
5574                         }
5575
5576                         parts[k] = parts[k] || [];
5577                         parts[k].push(segment[0]);
5578
5579                         // if segment goes out of screen, or it's the last one, it's the end of the line part
5580                         if ((segment[1] !== points[i + 1]) || (i === len - 2)) {
5581                                 parts[k].push(segment[1]);
5582                                 k++;
5583                         }
5584                 }
5585         },
5586
5587         // simplify each clipped part of the polyline
5588         _simplifyPoints: function () {
5589                 var parts = this._parts,
5590                     lu = L.LineUtil;
5591
5592                 for (var i = 0, len = parts.length; i < len; i++) {
5593                         parts[i] = lu.simplify(parts[i], this.options.smoothFactor);
5594                 }
5595         },
5596
5597         _updatePath: function () {
5598                 if (!this._map) { return; }
5599
5600                 this._clipPoints();
5601                 this._simplifyPoints();
5602
5603                 L.Path.prototype._updatePath.call(this);
5604         }
5605 });
5606
5607 L.polyline = function (latlngs, options) {
5608         return new L.Polyline(latlngs, options);
5609 };
5610
5611
5612 /*
5613  * L.PolyUtil contains utility functions for polygons (clipping, etc.).
5614  */
5615
5616 /*jshint bitwise:false */ // allow bitwise operations here
5617
5618 L.PolyUtil = {};
5619
5620 /*
5621  * Sutherland-Hodgeman polygon clipping algorithm.
5622  * Used to avoid rendering parts of a polygon that are not currently visible.
5623  */
5624 L.PolyUtil.clipPolygon = function (points, bounds) {
5625         var clippedPoints,
5626             edges = [1, 4, 2, 8],
5627             i, j, k,
5628             a, b,
5629             len, edge, p,
5630             lu = L.LineUtil;
5631
5632         for (i = 0, len = points.length; i < len; i++) {
5633                 points[i]._code = lu._getBitCode(points[i], bounds);
5634         }
5635
5636         // for each edge (left, bottom, right, top)
5637         for (k = 0; k < 4; k++) {
5638                 edge = edges[k];
5639                 clippedPoints = [];
5640
5641                 for (i = 0, len = points.length, j = len - 1; i < len; j = i++) {
5642                         a = points[i];
5643                         b = points[j];
5644
5645                         // if a is inside the clip window
5646                         if (!(a._code & edge)) {
5647                                 // if b is outside the clip window (a->b goes out of screen)
5648                                 if (b._code & edge) {
5649                                         p = lu._getEdgeIntersection(b, a, edge, bounds);
5650                                         p._code = lu._getBitCode(p, bounds);
5651                                         clippedPoints.push(p);
5652                                 }
5653                                 clippedPoints.push(a);
5654
5655                         // else if b is inside the clip window (a->b enters the screen)
5656                         } else if (!(b._code & edge)) {
5657                                 p = lu._getEdgeIntersection(b, a, edge, bounds);
5658                                 p._code = lu._getBitCode(p, bounds);
5659                                 clippedPoints.push(p);
5660                         }
5661                 }
5662                 points = clippedPoints;
5663         }
5664
5665         return points;
5666 };
5667
5668
5669 /*
5670  * L.Polygon is used to display polygons on a map.
5671  */
5672
5673 L.Polygon = L.Polyline.extend({
5674         options: {
5675                 fill: true
5676         },
5677
5678         initialize: function (latlngs, options) {
5679                 L.Polyline.prototype.initialize.call(this, latlngs, options);
5680                 this._initWithHoles(latlngs);
5681         },
5682
5683         _initWithHoles: function (latlngs) {
5684                 var i, len, hole;
5685                 if (latlngs && L.Util.isArray(latlngs[0]) && (typeof latlngs[0][0] !== 'number')) {
5686                         this._latlngs = this._convertLatLngs(latlngs[0]);
5687                         this._holes = latlngs.slice(1);
5688
5689                         for (i = 0, len = this._holes.length; i < len; i++) {
5690                                 hole = this._holes[i] = this._convertLatLngs(this._holes[i]);
5691                                 if (hole[0].equals(hole[hole.length - 1])) {
5692                                         hole.pop();
5693                                 }
5694                         }
5695                 }
5696
5697                 // filter out last point if its equal to the first one
5698                 latlngs = this._latlngs;
5699
5700                 if (latlngs.length >= 2 && latlngs[0].equals(latlngs[latlngs.length - 1])) {
5701                         latlngs.pop();
5702                 }
5703         },
5704
5705         projectLatlngs: function () {
5706                 L.Polyline.prototype.projectLatlngs.call(this);
5707
5708                 // project polygon holes points
5709                 // TODO move this logic to Polyline to get rid of duplication
5710                 this._holePoints = [];
5711
5712                 if (!this._holes) { return; }
5713
5714                 var i, j, len, len2;
5715
5716                 for (i = 0, len = this._holes.length; i < len; i++) {
5717                         this._holePoints[i] = [];
5718
5719                         for (j = 0, len2 = this._holes[i].length; j < len2; j++) {
5720                                 this._holePoints[i][j] = this._map.latLngToLayerPoint(this._holes[i][j]);
5721                         }
5722                 }
5723         },
5724
5725         setLatLngs: function (latlngs) {
5726                 if (latlngs && L.Util.isArray(latlngs[0]) && (typeof latlngs[0][0] !== 'number')) {
5727                         this._initWithHoles(latlngs);
5728                         return this.redraw();
5729                 } else {
5730                         return L.Polyline.prototype.setLatLngs.call(this, latlngs);
5731                 }
5732         },
5733
5734         _clipPoints: function () {
5735                 var points = this._originalPoints,
5736                     newParts = [];
5737
5738                 this._parts = [points].concat(this._holePoints);
5739
5740                 if (this.options.noClip) { return; }
5741
5742                 for (var i = 0, len = this._parts.length; i < len; i++) {
5743                         var clipped = L.PolyUtil.clipPolygon(this._parts[i], this._map._pathViewport);
5744                         if (clipped.length) {
5745                                 newParts.push(clipped);
5746                         }
5747                 }
5748
5749                 this._parts = newParts;
5750         },
5751
5752         _getPathPartStr: function (points) {
5753                 var str = L.Polyline.prototype._getPathPartStr.call(this, points);
5754                 return str + (L.Browser.svg ? 'z' : 'x');
5755         }
5756 });
5757
5758 L.polygon = function (latlngs, options) {
5759         return new L.Polygon(latlngs, options);
5760 };
5761
5762
5763 /*
5764  * Contains L.MultiPolyline and L.MultiPolygon layers.
5765  */
5766
5767 (function () {
5768         function createMulti(Klass) {
5769
5770                 return L.FeatureGroup.extend({
5771
5772                         initialize: function (latlngs, options) {
5773                                 this._layers = {};
5774                                 this._options = options;
5775                                 this.setLatLngs(latlngs);
5776                         },
5777
5778                         setLatLngs: function (latlngs) {
5779                                 var i = 0,
5780                                     len = latlngs.length;
5781
5782                                 this.eachLayer(function (layer) {
5783                                         if (i < len) {
5784                                                 layer.setLatLngs(latlngs[i++]);
5785                                         } else {
5786                                                 this.removeLayer(layer);
5787                                         }
5788                                 }, this);
5789
5790                                 while (i < len) {
5791                                         this.addLayer(new Klass(latlngs[i++], this._options));
5792                                 }
5793
5794                                 return this;
5795                         },
5796
5797                         getLatLngs: function () {
5798                                 var latlngs = [];
5799
5800                                 this.eachLayer(function (layer) {
5801                                         latlngs.push(layer.getLatLngs());
5802                                 });
5803
5804                                 return latlngs;
5805                         }
5806                 });
5807         }
5808
5809         L.MultiPolyline = createMulti(L.Polyline);
5810         L.MultiPolygon = createMulti(L.Polygon);
5811
5812         L.multiPolyline = function (latlngs, options) {
5813                 return new L.MultiPolyline(latlngs, options);
5814         };
5815
5816         L.multiPolygon = function (latlngs, options) {
5817                 return new L.MultiPolygon(latlngs, options);
5818         };
5819 }());
5820
5821
5822 /*
5823  * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object.
5824  */
5825
5826 L.Rectangle = L.Polygon.extend({
5827         initialize: function (latLngBounds, options) {
5828                 L.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options);
5829         },
5830
5831         setBounds: function (latLngBounds) {
5832                 this.setLatLngs(this._boundsToLatLngs(latLngBounds));
5833         },
5834
5835         _boundsToLatLngs: function (latLngBounds) {
5836                 latLngBounds = L.latLngBounds(latLngBounds);
5837                 return [
5838                         latLngBounds.getSouthWest(),
5839                         latLngBounds.getNorthWest(),
5840                         latLngBounds.getNorthEast(),
5841                         latLngBounds.getSouthEast()
5842                 ];
5843         }
5844 });
5845
5846 L.rectangle = function (latLngBounds, options) {
5847         return new L.Rectangle(latLngBounds, options);
5848 };
5849
5850
5851 /*
5852  * L.Circle is a circle overlay (with a certain radius in meters).
5853  */
5854
5855 L.Circle = L.Path.extend({
5856         initialize: function (latlng, radius, options) {
5857                 L.Path.prototype.initialize.call(this, options);
5858
5859                 this._latlng = L.latLng(latlng);
5860                 this._mRadius = radius;
5861         },
5862
5863         options: {
5864                 fill: true
5865         },
5866
5867         setLatLng: function (latlng) {
5868                 this._latlng = L.latLng(latlng);
5869                 return this.redraw();
5870         },
5871
5872         setRadius: function (radius) {
5873                 this._mRadius = radius;
5874                 return this.redraw();
5875         },
5876
5877         projectLatlngs: function () {
5878                 var lngRadius = this._getLngRadius(),
5879                     latlng = this._latlng,
5880                     pointLeft = this._map.latLngToLayerPoint([latlng.lat, latlng.lng - lngRadius]);
5881
5882                 this._point = this._map.latLngToLayerPoint(latlng);
5883                 this._radius = Math.max(this._point.x - pointLeft.x, 1);
5884         },
5885
5886         getBounds: function () {
5887                 var lngRadius = this._getLngRadius(),
5888                     latRadius = (this._mRadius / 40075017) * 360,
5889                     latlng = this._latlng;
5890
5891                 return new L.LatLngBounds(
5892                         [latlng.lat - latRadius, latlng.lng - lngRadius],
5893                         [latlng.lat + latRadius, latlng.lng + lngRadius]);
5894         },
5895
5896         getLatLng: function () {
5897                 return this._latlng;
5898         },
5899
5900         getPathString: function () {
5901                 var p = this._point,
5902                     r = this._radius;
5903
5904                 if (this._checkIfEmpty()) {
5905                         return '';
5906                 }
5907
5908                 if (L.Browser.svg) {
5909                         return 'M' + p.x + ',' + (p.y - r) +
5910                                'A' + r + ',' + r + ',0,1,1,' +
5911                                (p.x - 0.1) + ',' + (p.y - r) + ' z';
5912                 } else {
5913                         p._round();
5914                         r = Math.round(r);
5915                         return 'AL ' + p.x + ',' + p.y + ' ' + r + ',' + r + ' 0,' + (65535 * 360);
5916                 }
5917         },
5918
5919         getRadius: function () {
5920                 return this._mRadius;
5921         },
5922
5923         // TODO Earth hardcoded, move into projection code!
5924
5925         _getLatRadius: function () {
5926                 return (this._mRadius / 40075017) * 360;
5927         },
5928
5929         _getLngRadius: function () {
5930                 return this._getLatRadius() / Math.cos(L.LatLng.DEG_TO_RAD * this._latlng.lat);
5931         },
5932
5933         _checkIfEmpty: function () {
5934                 if (!this._map) {
5935                         return false;
5936                 }
5937                 var vp = this._map._pathViewport,
5938                     r = this._radius,
5939                     p = this._point;
5940
5941                 return p.x - r > vp.max.x || p.y - r > vp.max.y ||
5942                        p.x + r < vp.min.x || p.y + r < vp.min.y;
5943         }
5944 });
5945
5946 L.circle = function (latlng, radius, options) {
5947         return new L.Circle(latlng, radius, options);
5948 };
5949
5950
5951 /*
5952  * L.CircleMarker is a circle overlay with a permanent pixel radius.
5953  */
5954
5955 L.CircleMarker = L.Circle.extend({
5956         options: {
5957                 radius: 10,
5958                 weight: 2
5959         },
5960
5961         initialize: function (latlng, options) {
5962                 L.Circle.prototype.initialize.call(this, latlng, null, options);
5963                 this._radius = this.options.radius;
5964         },
5965
5966         projectLatlngs: function () {
5967                 this._point = this._map.latLngToLayerPoint(this._latlng);
5968         },
5969
5970         _updateStyle : function () {
5971                 L.Circle.prototype._updateStyle.call(this);
5972                 this.setRadius(this.options.radius);
5973         },
5974
5975         setLatLng: function (latlng) {
5976                 L.Circle.prototype.setLatLng.call(this, latlng);
5977                 if (this._popup && this._popup._isOpen) {
5978                         this._popup.setLatLng(latlng);
5979                 }
5980                 return this;
5981         },
5982
5983         setRadius: function (radius) {
5984                 this.options.radius = this._radius = radius;
5985                 return this.redraw();
5986         },
5987
5988         getRadius: function () {
5989                 return this._radius;
5990         }
5991 });
5992
5993 L.circleMarker = function (latlng, options) {
5994         return new L.CircleMarker(latlng, options);
5995 };
5996
5997
5998 /*
5999  * Extends L.Polyline to be able to manually detect clicks on Canvas-rendered polylines.
6000  */
6001
6002 L.Polyline.include(!L.Path.CANVAS ? {} : {
6003         _containsPoint: function (p, closed) {
6004                 var i, j, k, len, len2, dist, part,
6005                     w = this.options.weight / 2;
6006
6007                 if (L.Browser.touch) {
6008                         w += 10; // polyline click tolerance on touch devices
6009                 }
6010
6011                 for (i = 0, len = this._parts.length; i < len; i++) {
6012                         part = this._parts[i];
6013                         for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
6014                                 if (!closed && (j === 0)) {
6015                                         continue;
6016                                 }
6017
6018                                 dist = L.LineUtil.pointToSegmentDistance(p, part[k], part[j]);
6019
6020                                 if (dist <= w) {
6021                                         return true;
6022                                 }
6023                         }
6024                 }
6025                 return false;
6026         }
6027 });
6028
6029
6030 /*
6031  * Extends L.Polygon to be able to manually detect clicks on Canvas-rendered polygons.
6032  */
6033
6034 L.Polygon.include(!L.Path.CANVAS ? {} : {
6035         _containsPoint: function (p) {
6036                 var inside = false,
6037                     part, p1, p2,
6038                     i, j, k,
6039                     len, len2;
6040
6041                 // TODO optimization: check if within bounds first
6042
6043                 if (L.Polyline.prototype._containsPoint.call(this, p, true)) {
6044                         // click on polygon border
6045                         return true;
6046                 }
6047
6048                 // ray casting algorithm for detecting if point is in polygon
6049
6050                 for (i = 0, len = this._parts.length; i < len; i++) {
6051                         part = this._parts[i];
6052
6053                         for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
6054                                 p1 = part[j];
6055                                 p2 = part[k];
6056
6057                                 if (((p1.y > p.y) !== (p2.y > p.y)) &&
6058                                                 (p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) {
6059                                         inside = !inside;
6060                                 }
6061                         }
6062                 }
6063
6064                 return inside;
6065         }
6066 });
6067
6068
6069 /*
6070  * Extends L.Circle with Canvas-specific code.
6071  */
6072
6073 L.Circle.include(!L.Path.CANVAS ? {} : {
6074         _drawPath: function () {
6075                 var p = this._point;
6076                 this._ctx.beginPath();
6077                 this._ctx.arc(p.x, p.y, this._radius, 0, Math.PI * 2, false);
6078         },
6079
6080         _containsPoint: function (p) {
6081                 var center = this._point,
6082                     w2 = this.options.stroke ? this.options.weight / 2 : 0;
6083
6084                 return (p.distanceTo(center) <= this._radius + w2);
6085         }
6086 });
6087
6088
6089 /*
6090  * CircleMarker canvas specific drawing parts.
6091  */
6092
6093 L.CircleMarker.include(!L.Path.CANVAS ? {} : {
6094         _updateStyle: function () {
6095                 L.Path.prototype._updateStyle.call(this);
6096         }
6097 });
6098
6099
6100 /*
6101  * L.GeoJSON turns any GeoJSON data into a Leaflet layer.
6102  */
6103
6104 L.GeoJSON = L.FeatureGroup.extend({
6105
6106         initialize: function (geojson, options) {
6107                 L.setOptions(this, options);
6108
6109                 this._layers = {};
6110
6111                 if (geojson) {
6112                         this.addData(geojson);
6113                 }
6114         },
6115
6116         addData: function (geojson) {
6117                 var features = L.Util.isArray(geojson) ? geojson : geojson.features,
6118                     i, len, feature;
6119
6120                 if (features) {
6121                         for (i = 0, len = features.length; i < len; i++) {
6122                                 // Only add this if geometry or geometries are set and not null
6123                                 feature = features[i];
6124                                 if (feature.geometries || feature.geometry || feature.features || feature.coordinates) {
6125                                         this.addData(features[i]);
6126                                 }
6127                         }
6128                         return this;
6129                 }
6130
6131                 var options = this.options;
6132
6133                 if (options.filter && !options.filter(geojson)) { return; }
6134
6135                 var layer = L.GeoJSON.geometryToLayer(geojson, options.pointToLayer, options.coordsToLatLng, options);
6136                 layer.feature = L.GeoJSON.asFeature(geojson);
6137
6138                 layer.defaultOptions = layer.options;
6139                 this.resetStyle(layer);
6140
6141                 if (options.onEachFeature) {
6142                         options.onEachFeature(geojson, layer);
6143                 }
6144
6145                 return this.addLayer(layer);
6146         },
6147
6148         resetStyle: function (layer) {
6149                 var style = this.options.style;
6150                 if (style) {
6151                         // reset any custom styles
6152                         L.Util.extend(layer.options, layer.defaultOptions);
6153
6154                         this._setLayerStyle(layer, style);
6155                 }
6156         },
6157
6158         setStyle: function (style) {
6159                 this.eachLayer(function (layer) {
6160                         this._setLayerStyle(layer, style);
6161                 }, this);
6162         },
6163
6164         _setLayerStyle: function (layer, style) {
6165                 if (typeof style === 'function') {
6166                         style = style(layer.feature);
6167                 }
6168                 if (layer.setStyle) {
6169                         layer.setStyle(style);
6170                 }
6171         }
6172 });
6173
6174 L.extend(L.GeoJSON, {
6175         geometryToLayer: function (geojson, pointToLayer, coordsToLatLng, vectorOptions) {
6176                 var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson,
6177                     coords = geometry.coordinates,
6178                     layers = [],
6179                     latlng, latlngs, i, len;
6180
6181                 coordsToLatLng = coordsToLatLng || this.coordsToLatLng;
6182
6183                 switch (geometry.type) {
6184                 case 'Point':
6185                         latlng = coordsToLatLng(coords);
6186                         return pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng);
6187
6188                 case 'MultiPoint':
6189                         for (i = 0, len = coords.length; i < len; i++) {
6190                                 latlng = coordsToLatLng(coords[i]);
6191                                 layers.push(pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng));
6192                         }
6193                         return new L.FeatureGroup(layers);
6194
6195                 case 'LineString':
6196                         latlngs = this.coordsToLatLngs(coords, 0, coordsToLatLng);
6197                         return new L.Polyline(latlngs, vectorOptions);
6198
6199                 case 'Polygon':
6200                         if (coords.length === 2 && !coords[1].length) {
6201                                 throw new Error('Invalid GeoJSON object.');
6202                         }
6203                         latlngs = this.coordsToLatLngs(coords, 1, coordsToLatLng);
6204                         return new L.Polygon(latlngs, vectorOptions);
6205
6206                 case 'MultiLineString':
6207                         latlngs = this.coordsToLatLngs(coords, 1, coordsToLatLng);
6208                         return new L.MultiPolyline(latlngs, vectorOptions);
6209
6210                 case 'MultiPolygon':
6211                         latlngs = this.coordsToLatLngs(coords, 2, coordsToLatLng);
6212                         return new L.MultiPolygon(latlngs, vectorOptions);
6213
6214                 case 'GeometryCollection':
6215                         for (i = 0, len = geometry.geometries.length; i < len; i++) {
6216
6217                                 layers.push(this.geometryToLayer({
6218                                         geometry: geometry.geometries[i],
6219                                         type: 'Feature',
6220                                         properties: geojson.properties
6221                                 }, pointToLayer, coordsToLatLng, vectorOptions));
6222                         }
6223                         return new L.FeatureGroup(layers);
6224
6225                 default:
6226                         throw new Error('Invalid GeoJSON object.');
6227                 }
6228         },
6229
6230         coordsToLatLng: function (coords) { // (Array[, Boolean]) -> LatLng
6231                 return new L.LatLng(coords[1], coords[0], coords[2]);
6232         },
6233
6234         coordsToLatLngs: function (coords, levelsDeep, coordsToLatLng) { // (Array[, Number, Function]) -> Array
6235                 var latlng, i, len,
6236                     latlngs = [];
6237
6238                 for (i = 0, len = coords.length; i < len; i++) {
6239                         latlng = levelsDeep ?
6240                                 this.coordsToLatLngs(coords[i], levelsDeep - 1, coordsToLatLng) :
6241                                 (coordsToLatLng || this.coordsToLatLng)(coords[i]);
6242
6243                         latlngs.push(latlng);
6244                 }
6245
6246                 return latlngs;
6247         },
6248
6249         latLngToCoords: function (latlng) {
6250                 var coords = [latlng.lng, latlng.lat];
6251
6252                 if (latlng.alt !== undefined) {
6253                         coords.push(latlng.alt);
6254                 }
6255                 return coords;
6256         },
6257
6258         latLngsToCoords: function (latLngs) {
6259                 var coords = [];
6260
6261                 for (var i = 0, len = latLngs.length; i < len; i++) {
6262                         coords.push(L.GeoJSON.latLngToCoords(latLngs[i]));
6263                 }
6264
6265                 return coords;
6266         },
6267
6268         getFeature: function (layer, newGeometry) {
6269                 return layer.feature ? L.extend({}, layer.feature, {geometry: newGeometry}) : L.GeoJSON.asFeature(newGeometry);
6270         },
6271
6272         asFeature: function (geoJSON) {
6273                 if (geoJSON.type === 'Feature') {
6274                         return geoJSON;
6275                 }
6276
6277                 return {
6278                         type: 'Feature',
6279                         properties: {},
6280                         geometry: geoJSON
6281                 };
6282         }
6283 });
6284
6285 var PointToGeoJSON = {
6286         toGeoJSON: function () {
6287                 return L.GeoJSON.getFeature(this, {
6288                         type: 'Point',
6289                         coordinates: L.GeoJSON.latLngToCoords(this.getLatLng())
6290                 });
6291         }
6292 };
6293
6294 L.Marker.include(PointToGeoJSON);
6295 L.Circle.include(PointToGeoJSON);
6296 L.CircleMarker.include(PointToGeoJSON);
6297
6298 L.Polyline.include({
6299         toGeoJSON: function () {
6300                 return L.GeoJSON.getFeature(this, {
6301                         type: 'LineString',
6302                         coordinates: L.GeoJSON.latLngsToCoords(this.getLatLngs())
6303                 });
6304         }
6305 });
6306
6307 L.Polygon.include({
6308         toGeoJSON: function () {
6309                 var coords = [L.GeoJSON.latLngsToCoords(this.getLatLngs())],
6310                     i, len, hole;
6311
6312                 coords[0].push(coords[0][0]);
6313
6314                 if (this._holes) {
6315                         for (i = 0, len = this._holes.length; i < len; i++) {
6316                                 hole = L.GeoJSON.latLngsToCoords(this._holes[i]);
6317                                 hole.push(hole[0]);
6318                                 coords.push(hole);
6319                         }
6320                 }
6321
6322                 return L.GeoJSON.getFeature(this, {
6323                         type: 'Polygon',
6324                         coordinates: coords
6325                 });
6326         }
6327 });
6328
6329 (function () {
6330         function multiToGeoJSON(type) {
6331                 return function () {
6332                         var coords = [];
6333
6334                         this.eachLayer(function (layer) {
6335                                 coords.push(layer.toGeoJSON().geometry.coordinates);
6336                         });
6337
6338                         return L.GeoJSON.getFeature(this, {
6339                                 type: type,
6340                                 coordinates: coords
6341                         });
6342                 };
6343         }
6344
6345         L.MultiPolyline.include({toGeoJSON: multiToGeoJSON('MultiLineString')});
6346         L.MultiPolygon.include({toGeoJSON: multiToGeoJSON('MultiPolygon')});
6347
6348         L.LayerGroup.include({
6349                 toGeoJSON: function () {
6350
6351                         var geometry = this.feature && this.feature.geometry,
6352                                 jsons = [],
6353                                 json;
6354
6355                         if (geometry && geometry.type === 'MultiPoint') {
6356                                 return multiToGeoJSON('MultiPoint').call(this);
6357                         }
6358
6359                         var isGeometryCollection = geometry && geometry.type === 'GeometryCollection';
6360
6361                         this.eachLayer(function (layer) {
6362                                 if (layer.toGeoJSON) {
6363                                         json = layer.toGeoJSON();
6364                                         jsons.push(isGeometryCollection ? json.geometry : L.GeoJSON.asFeature(json));
6365                                 }
6366                         });
6367
6368                         if (isGeometryCollection) {
6369                                 return L.GeoJSON.getFeature(this, {
6370                                         geometries: jsons,
6371                                         type: 'GeometryCollection'
6372                                 });
6373                         }
6374
6375                         return {
6376                                 type: 'FeatureCollection',
6377                                 features: jsons
6378                         };
6379                 }
6380         });
6381 }());
6382
6383 L.geoJson = function (geojson, options) {
6384         return new L.GeoJSON(geojson, options);
6385 };
6386
6387
6388 /*
6389  * L.DomEvent contains functions for working with DOM events.
6390  */
6391
6392 L.DomEvent = {
6393         /* inspired by John Resig, Dean Edwards and YUI addEvent implementations */
6394         addListener: function (obj, type, fn, context) { // (HTMLElement, String, Function[, Object])
6395
6396                 var id = L.stamp(fn),
6397                     key = '_leaflet_' + type + id,
6398                     handler, originalHandler, newType;
6399
6400                 if (obj[key]) { return this; }
6401
6402                 handler = function (e) {
6403                         return fn.call(context || obj, e || L.DomEvent._getEvent());
6404                 };
6405
6406                 if (L.Browser.pointer && type.indexOf('touch') === 0) {
6407                         return this.addPointerListener(obj, type, handler, id);
6408                 }
6409                 if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener) {
6410                         this.addDoubleTapListener(obj, handler, id);
6411                 }
6412
6413                 if ('addEventListener' in obj) {
6414
6415                         if (type === 'mousewheel') {
6416                                 obj.addEventListener('DOMMouseScroll', handler, false);
6417                                 obj.addEventListener(type, handler, false);
6418
6419                         } else if ((type === 'mouseenter') || (type === 'mouseleave')) {
6420
6421                                 originalHandler = handler;
6422                                 newType = (type === 'mouseenter' ? 'mouseover' : 'mouseout');
6423
6424                                 handler = function (e) {
6425                                         if (!L.DomEvent._checkMouse(obj, e)) { return; }
6426                                         return originalHandler(e);
6427                                 };
6428
6429                                 obj.addEventListener(newType, handler, false);
6430
6431                         } else if (type === 'click' && L.Browser.android) {
6432                                 originalHandler = handler;
6433                                 handler = function (e) {
6434                                         return L.DomEvent._filterClick(e, originalHandler);
6435                                 };
6436
6437                                 obj.addEventListener(type, handler, false);
6438                         } else {
6439                                 obj.addEventListener(type, handler, false);
6440                         }
6441
6442                 } else if ('attachEvent' in obj) {
6443                         obj.attachEvent('on' + type, handler);
6444                 }
6445
6446                 obj[key] = handler;
6447
6448                 return this;
6449         },
6450
6451         removeListener: function (obj, type, fn) {  // (HTMLElement, String, Function)
6452
6453                 var id = L.stamp(fn),
6454                     key = '_leaflet_' + type + id,
6455                     handler = obj[key];
6456
6457                 if (!handler) { return this; }
6458
6459                 if (L.Browser.pointer && type.indexOf('touch') === 0) {
6460                         this.removePointerListener(obj, type, id);
6461                 } else if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) {
6462                         this.removeDoubleTapListener(obj, id);
6463
6464                 } else if ('removeEventListener' in obj) {
6465
6466                         if (type === 'mousewheel') {
6467                                 obj.removeEventListener('DOMMouseScroll', handler, false);
6468                                 obj.removeEventListener(type, handler, false);
6469
6470                         } else if ((type === 'mouseenter') || (type === 'mouseleave')) {
6471                                 obj.removeEventListener((type === 'mouseenter' ? 'mouseover' : 'mouseout'), handler, false);
6472                         } else {
6473                                 obj.removeEventListener(type, handler, false);
6474                         }
6475                 } else if ('detachEvent' in obj) {
6476                         obj.detachEvent('on' + type, handler);
6477                 }
6478
6479                 obj[key] = null;
6480
6481                 return this;
6482         },
6483
6484         stopPropagation: function (e) {
6485
6486                 if (e.stopPropagation) {
6487                         e.stopPropagation();
6488                 } else {
6489                         e.cancelBubble = true;
6490                 }
6491                 L.DomEvent._skipped(e);
6492
6493                 return this;
6494         },
6495
6496         disableScrollPropagation: function (el) {
6497                 var stop = L.DomEvent.stopPropagation;
6498
6499                 return L.DomEvent
6500                         .on(el, 'mousewheel', stop)
6501                         .on(el, 'MozMousePixelScroll', stop);
6502         },
6503
6504         disableClickPropagation: function (el) {
6505                 var stop = L.DomEvent.stopPropagation;
6506
6507                 for (var i = L.Draggable.START.length - 1; i >= 0; i--) {
6508                         L.DomEvent.on(el, L.Draggable.START[i], stop);
6509                 }
6510
6511                 return L.DomEvent
6512                         .on(el, 'click', L.DomEvent._fakeStop)
6513                         .on(el, 'dblclick', stop);
6514         },
6515
6516         preventDefault: function (e) {
6517
6518                 if (e.preventDefault) {
6519                         e.preventDefault();
6520                 } else {
6521                         e.returnValue = false;
6522                 }
6523                 return this;
6524         },
6525
6526         stop: function (e) {
6527                 return L.DomEvent
6528                         .preventDefault(e)
6529                         .stopPropagation(e);
6530         },
6531
6532         getMousePosition: function (e, container) {
6533                 if (!container) {
6534                         return new L.Point(e.clientX, e.clientY);
6535                 }
6536
6537                 var rect = container.getBoundingClientRect();
6538
6539                 return new L.Point(
6540                         e.clientX - rect.left - container.clientLeft,
6541                         e.clientY - rect.top - container.clientTop);
6542         },
6543
6544         getWheelDelta: function (e) {
6545
6546                 var delta = 0;
6547
6548                 if (e.wheelDelta) {
6549                         delta = e.wheelDelta / 120;
6550                 }
6551                 if (e.detail) {
6552                         delta = -e.detail / 3;
6553                 }
6554                 return delta;
6555         },
6556
6557         _skipEvents: {},
6558
6559         _fakeStop: function (e) {
6560                 // fakes stopPropagation by setting a special event flag, checked/reset with L.DomEvent._skipped(e)
6561                 L.DomEvent._skipEvents[e.type] = true;
6562         },
6563
6564         _skipped: function (e) {
6565                 var skipped = this._skipEvents[e.type];
6566                 // reset when checking, as it's only used in map container and propagates outside of the map
6567                 this._skipEvents[e.type] = false;
6568                 return skipped;
6569         },
6570
6571         // check if element really left/entered the event target (for mouseenter/mouseleave)
6572         _checkMouse: function (el, e) {
6573
6574                 var related = e.relatedTarget;
6575
6576                 if (!related) { return true; }
6577
6578                 try {
6579                         while (related && (related !== el)) {
6580                                 related = related.parentNode;
6581                         }
6582                 } catch (err) {
6583                         return false;
6584                 }
6585                 return (related !== el);
6586         },
6587
6588         _getEvent: function () { // evil magic for IE
6589                 /*jshint noarg:false */
6590                 var e = window.event;
6591                 if (!e) {
6592                         var caller = arguments.callee.caller;
6593                         while (caller) {
6594                                 e = caller['arguments'][0];
6595                                 if (e && window.Event === e.constructor) {
6596                                         break;
6597                                 }
6598                                 caller = caller.caller;
6599                         }
6600                 }
6601                 return e;
6602         },
6603
6604         // this is a horrible workaround for a bug in Android where a single touch triggers two click events
6605         _filterClick: function (e, handler) {
6606                 var timeStamp = (e.timeStamp || e.originalEvent.timeStamp),
6607                         elapsed = L.DomEvent._lastClick && (timeStamp - L.DomEvent._lastClick);
6608
6609                 // are they closer together than 500ms yet more than 100ms?
6610                 // Android typically triggers them ~300ms apart while multiple listeners
6611                 // on the same event should be triggered far faster;
6612                 // or check if click is simulated on the element, and if it is, reject any non-simulated events
6613
6614                 if ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) {
6615                         L.DomEvent.stop(e);
6616                         return;
6617                 }
6618                 L.DomEvent._lastClick = timeStamp;
6619
6620                 return handler(e);
6621         }
6622 };
6623
6624 L.DomEvent.on = L.DomEvent.addListener;
6625 L.DomEvent.off = L.DomEvent.removeListener;
6626
6627
6628 /*
6629  * L.Draggable allows you to add dragging capabilities to any element. Supports mobile devices too.
6630  */
6631
6632 L.Draggable = L.Class.extend({
6633         includes: L.Mixin.Events,
6634
6635         statics: {
6636                 START: L.Browser.touch ? ['touchstart', 'mousedown'] : ['mousedown'],
6637                 END: {
6638                         mousedown: 'mouseup',
6639                         touchstart: 'touchend',
6640                         pointerdown: 'touchend',
6641                         MSPointerDown: 'touchend'
6642                 },
6643                 MOVE: {
6644                         mousedown: 'mousemove',
6645                         touchstart: 'touchmove',
6646                         pointerdown: 'touchmove',
6647                         MSPointerDown: 'touchmove'
6648                 }
6649         },
6650
6651         initialize: function (element, dragStartTarget) {
6652                 this._element = element;
6653                 this._dragStartTarget = dragStartTarget || element;
6654         },
6655
6656         enable: function () {
6657                 if (this._enabled) { return; }
6658
6659                 for (var i = L.Draggable.START.length - 1; i >= 0; i--) {
6660                         L.DomEvent.on(this._dragStartTarget, L.Draggable.START[i], this._onDown, this);
6661                 }
6662
6663                 this._enabled = true;
6664         },
6665
6666         disable: function () {
6667                 if (!this._enabled) { return; }
6668
6669                 for (var i = L.Draggable.START.length - 1; i >= 0; i--) {
6670                         L.DomEvent.off(this._dragStartTarget, L.Draggable.START[i], this._onDown, this);
6671                 }
6672
6673                 this._enabled = false;
6674                 this._moved = false;
6675         },
6676
6677         _onDown: function (e) {
6678                 this._moved = false;
6679
6680                 if (e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; }
6681
6682                 L.DomEvent.stopPropagation(e);
6683
6684                 if (L.Draggable._disabled) { return; }
6685
6686                 L.DomUtil.disableImageDrag();
6687                 L.DomUtil.disableTextSelection();
6688
6689                 if (this._moving) { return; }
6690
6691                 var first = e.touches ? e.touches[0] : e;
6692
6693                 this._startPoint = new L.Point(first.clientX, first.clientY);
6694                 this._startPos = this._newPos = L.DomUtil.getPosition(this._element);
6695
6696                 L.DomEvent
6697                     .on(document, L.Draggable.MOVE[e.type], this._onMove, this)
6698                     .on(document, L.Draggable.END[e.type], this._onUp, this);
6699         },
6700
6701         _onMove: function (e) {
6702                 if (e.touches && e.touches.length > 1) {
6703                         this._moved = true;
6704                         return;
6705                 }
6706
6707                 var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e),
6708                     newPoint = new L.Point(first.clientX, first.clientY),
6709                     offset = newPoint.subtract(this._startPoint);
6710
6711                 if (!offset.x && !offset.y) { return; }
6712                 if (L.Browser.touch && Math.abs(offset.x) + Math.abs(offset.y) < 3) { return; }
6713
6714                 L.DomEvent.preventDefault(e);
6715
6716                 if (!this._moved) {
6717                         this.fire('dragstart');
6718
6719                         this._moved = true;
6720                         this._startPos = L.DomUtil.getPosition(this._element).subtract(offset);
6721
6722                         L.DomUtil.addClass(document.body, 'leaflet-dragging');
6723                         this._lastTarget = e.target || e.srcElement;
6724                         L.DomUtil.addClass(this._lastTarget, 'leaflet-drag-target');
6725                 }
6726
6727                 this._newPos = this._startPos.add(offset);
6728                 this._moving = true;
6729
6730                 L.Util.cancelAnimFrame(this._animRequest);
6731                 this._animRequest = L.Util.requestAnimFrame(this._updatePosition, this, true, this._dragStartTarget);
6732         },
6733
6734         _updatePosition: function () {
6735                 this.fire('predrag');
6736                 L.DomUtil.setPosition(this._element, this._newPos);
6737                 this.fire('drag');
6738         },
6739
6740         _onUp: function () {
6741                 L.DomUtil.removeClass(document.body, 'leaflet-dragging');
6742
6743                 if (this._lastTarget) {
6744                         L.DomUtil.removeClass(this._lastTarget, 'leaflet-drag-target');
6745                         this._lastTarget = null;
6746                 }
6747
6748                 for (var i in L.Draggable.MOVE) {
6749                         L.DomEvent
6750                             .off(document, L.Draggable.MOVE[i], this._onMove)
6751                             .off(document, L.Draggable.END[i], this._onUp);
6752                 }
6753
6754                 L.DomUtil.enableImageDrag();
6755                 L.DomUtil.enableTextSelection();
6756
6757                 if (this._moved && this._moving) {
6758                         // ensure drag is not fired after dragend
6759                         L.Util.cancelAnimFrame(this._animRequest);
6760
6761                         this.fire('dragend', {
6762                                 distance: this._newPos.distanceTo(this._startPos)
6763                         });
6764                 }
6765
6766                 this._moving = false;
6767         }
6768 });
6769
6770
6771 /*
6772         L.Handler is a base class for handler classes that are used internally to inject
6773         interaction features like dragging to classes like Map and Marker.
6774 */
6775
6776 L.Handler = L.Class.extend({
6777         initialize: function (map) {
6778                 this._map = map;
6779         },
6780
6781         enable: function () {
6782                 if (this._enabled) { return; }
6783
6784                 this._enabled = true;
6785                 this.addHooks();
6786         },
6787
6788         disable: function () {
6789                 if (!this._enabled) { return; }
6790
6791                 this._enabled = false;
6792                 this.removeHooks();
6793         },
6794
6795         enabled: function () {
6796                 return !!this._enabled;
6797         }
6798 });
6799
6800
6801 /*
6802  * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default.
6803  */
6804
6805 L.Map.mergeOptions({
6806         dragging: true,
6807
6808         inertia: !L.Browser.android23,
6809         inertiaDeceleration: 3400, // px/s^2
6810         inertiaMaxSpeed: Infinity, // px/s
6811         inertiaThreshold: L.Browser.touch ? 32 : 18, // ms
6812         easeLinearity: 0.25,
6813
6814         // TODO refactor, move to CRS
6815         worldCopyJump: false
6816 });
6817
6818 L.Map.Drag = L.Handler.extend({
6819         addHooks: function () {
6820                 if (!this._draggable) {
6821                         var map = this._map;
6822
6823                         this._draggable = new L.Draggable(map._mapPane, map._container);
6824
6825                         this._draggable.on({
6826                                 'dragstart': this._onDragStart,
6827                                 'drag': this._onDrag,
6828                                 'dragend': this._onDragEnd
6829                         }, this);
6830
6831                         if (map.options.worldCopyJump) {
6832                                 this._draggable.on('predrag', this._onPreDrag, this);
6833                                 map.on('viewreset', this._onViewReset, this);
6834
6835                                 map.whenReady(this._onViewReset, this);
6836                         }
6837                 }
6838                 this._draggable.enable();
6839         },
6840
6841         removeHooks: function () {
6842                 this._draggable.disable();
6843         },
6844
6845         moved: function () {
6846                 return this._draggable && this._draggable._moved;
6847         },
6848
6849         _onDragStart: function () {
6850                 var map = this._map;
6851
6852                 if (map._panAnim) {
6853                         map._panAnim.stop();
6854                 }
6855
6856                 map
6857                     .fire('movestart')
6858                     .fire('dragstart');
6859
6860                 if (map.options.inertia) {
6861                         this._positions = [];
6862                         this._times = [];
6863                 }
6864         },
6865
6866         _onDrag: function () {
6867                 if (this._map.options.inertia) {
6868                         var time = this._lastTime = +new Date(),
6869                             pos = this._lastPos = this._draggable._newPos;
6870
6871                         this._positions.push(pos);
6872                         this._times.push(time);
6873
6874                         if (time - this._times[0] > 200) {
6875                                 this._positions.shift();
6876                                 this._times.shift();
6877                         }
6878                 }
6879
6880                 this._map
6881                     .fire('move')
6882                     .fire('drag');
6883         },
6884
6885         _onViewReset: function () {
6886                 // TODO fix hardcoded Earth values
6887                 var pxCenter = this._map.getSize()._divideBy(2),
6888                     pxWorldCenter = this._map.latLngToLayerPoint([0, 0]);
6889
6890                 this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;
6891                 this._worldWidth = this._map.project([0, 180]).x;
6892         },
6893
6894         _onPreDrag: function () {
6895                 // TODO refactor to be able to adjust map pane position after zoom
6896                 var worldWidth = this._worldWidth,
6897                     halfWidth = Math.round(worldWidth / 2),
6898                     dx = this._initialWorldOffset,
6899                     x = this._draggable._newPos.x,
6900                     newX1 = (x - halfWidth + dx) % worldWidth + halfWidth - dx,
6901                     newX2 = (x + halfWidth + dx) % worldWidth - halfWidth - dx,
6902                     newX = Math.abs(newX1 + dx) < Math.abs(newX2 + dx) ? newX1 : newX2;
6903
6904                 this._draggable._newPos.x = newX;
6905         },
6906
6907         _onDragEnd: function (e) {
6908                 var map = this._map,
6909                     options = map.options,
6910                     delay = +new Date() - this._lastTime,
6911
6912                     noInertia = !options.inertia || delay > options.inertiaThreshold || !this._positions[0];
6913
6914                 map.fire('dragend', e);
6915
6916                 if (noInertia) {
6917                         map.fire('moveend');
6918
6919                 } else {
6920
6921                         var direction = this._lastPos.subtract(this._positions[0]),
6922                             duration = (this._lastTime + delay - this._times[0]) / 1000,
6923                             ease = options.easeLinearity,
6924
6925                             speedVector = direction.multiplyBy(ease / duration),
6926                             speed = speedVector.distanceTo([0, 0]),
6927
6928                             limitedSpeed = Math.min(options.inertiaMaxSpeed, speed),
6929                             limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed),
6930
6931                             decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease),
6932                             offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round();
6933
6934                         if (!offset.x || !offset.y) {
6935                                 map.fire('moveend');
6936
6937                         } else {
6938                                 offset = map._limitOffset(offset, map.options.maxBounds);
6939
6940                                 L.Util.requestAnimFrame(function () {
6941                                         map.panBy(offset, {
6942                                                 duration: decelerationDuration,
6943                                                 easeLinearity: ease,
6944                                                 noMoveStart: true
6945                                         });
6946                                 });
6947                         }
6948                 }
6949         }
6950 });
6951
6952 L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag);
6953
6954
6955 /*
6956  * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default.
6957  */
6958
6959 L.Map.mergeOptions({
6960         doubleClickZoom: true
6961 });
6962
6963 L.Map.DoubleClickZoom = L.Handler.extend({
6964         addHooks: function () {
6965                 this._map.on('dblclick', this._onDoubleClick, this);
6966         },
6967
6968         removeHooks: function () {
6969                 this._map.off('dblclick', this._onDoubleClick, this);
6970         },
6971
6972         _onDoubleClick: function (e) {
6973                 var map = this._map,
6974                     zoom = map.getZoom() + (e.originalEvent.shiftKey ? -1 : 1);
6975
6976                 if (map.options.doubleClickZoom === 'center') {
6977                         map.setZoom(zoom);
6978                 } else {
6979                         map.setZoomAround(e.containerPoint, zoom);
6980                 }
6981         }
6982 });
6983
6984 L.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom);
6985
6986
6987 /*
6988  * L.Handler.ScrollWheelZoom is used by L.Map to enable mouse scroll wheel zoom on the map.
6989  */
6990
6991 L.Map.mergeOptions({
6992         scrollWheelZoom: true
6993 });
6994
6995 L.Map.ScrollWheelZoom = L.Handler.extend({
6996         addHooks: function () {
6997                 L.DomEvent.on(this._map._container, 'mousewheel', this._onWheelScroll, this);
6998                 L.DomEvent.on(this._map._container, 'MozMousePixelScroll', L.DomEvent.preventDefault);
6999                 this._delta = 0;
7000         },
7001
7002         removeHooks: function () {
7003                 L.DomEvent.off(this._map._container, 'mousewheel', this._onWheelScroll);
7004                 L.DomEvent.off(this._map._container, 'MozMousePixelScroll', L.DomEvent.preventDefault);
7005         },
7006
7007         _onWheelScroll: function (e) {
7008                 var delta = L.DomEvent.getWheelDelta(e);
7009
7010                 this._delta += delta;
7011                 this._lastMousePos = this._map.mouseEventToContainerPoint(e);
7012
7013                 if (!this._startTime) {
7014                         this._startTime = +new Date();
7015                 }
7016
7017                 var left = Math.max(40 - (+new Date() - this._startTime), 0);
7018
7019                 clearTimeout(this._timer);
7020                 this._timer = setTimeout(L.bind(this._performZoom, this), left);
7021
7022                 L.DomEvent.preventDefault(e);
7023                 L.DomEvent.stopPropagation(e);
7024         },
7025
7026         _performZoom: function () {
7027                 var map = this._map,
7028                     delta = this._delta,
7029                     zoom = map.getZoom();
7030
7031                 delta = delta > 0 ? Math.ceil(delta) : Math.floor(delta);
7032                 delta = Math.max(Math.min(delta, 4), -4);
7033                 delta = map._limitZoom(zoom + delta) - zoom;
7034
7035                 this._delta = 0;
7036                 this._startTime = null;
7037
7038                 if (!delta) { return; }
7039
7040                 if (map.options.scrollWheelZoom === 'center') {
7041                         map.setZoom(zoom + delta);
7042                 } else {
7043                         map.setZoomAround(this._lastMousePos, zoom + delta);
7044                 }
7045         }
7046 });
7047
7048 L.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom);
7049
7050
7051 /*
7052  * Extends the event handling code with double tap support for mobile browsers.
7053  */
7054
7055 L.extend(L.DomEvent, {
7056
7057         _touchstart: L.Browser.msPointer ? 'MSPointerDown' : L.Browser.pointer ? 'pointerdown' : 'touchstart',
7058         _touchend: L.Browser.msPointer ? 'MSPointerUp' : L.Browser.pointer ? 'pointerup' : 'touchend',
7059
7060         // inspired by Zepto touch code by Thomas Fuchs
7061         addDoubleTapListener: function (obj, handler, id) {
7062                 var last,
7063                     doubleTap = false,
7064                     delay = 250,
7065                     touch,
7066                     pre = '_leaflet_',
7067                     touchstart = this._touchstart,
7068                     touchend = this._touchend,
7069                     trackedTouches = [];
7070
7071                 function onTouchStart(e) {
7072                         var count;
7073
7074                         if (L.Browser.pointer) {
7075                                 trackedTouches.push(e.pointerId);
7076                                 count = trackedTouches.length;
7077                         } else {
7078                                 count = e.touches.length;
7079                         }
7080                         if (count > 1) {
7081                                 return;
7082                         }
7083
7084                         var now = Date.now(),
7085                                 delta = now - (last || now);
7086
7087                         touch = e.touches ? e.touches[0] : e;
7088                         doubleTap = (delta > 0 && delta <= delay);
7089                         last = now;
7090                 }
7091
7092                 function onTouchEnd(e) {
7093                         if (L.Browser.pointer) {
7094                                 var idx = trackedTouches.indexOf(e.pointerId);
7095                                 if (idx === -1) {
7096                                         return;
7097                                 }
7098                                 trackedTouches.splice(idx, 1);
7099                         }
7100
7101                         if (doubleTap) {
7102                                 if (L.Browser.pointer) {
7103                                         // work around .type being readonly with MSPointer* events
7104                                         var newTouch = { },
7105                                                 prop;
7106
7107                                         // jshint forin:false
7108                                         for (var i in touch) {
7109                                                 prop = touch[i];
7110                                                 if (typeof prop === 'function') {
7111                                                         newTouch[i] = prop.bind(touch);
7112                                                 } else {
7113                                                         newTouch[i] = prop;
7114                                                 }
7115                                         }
7116                                         touch = newTouch;
7117                                 }
7118                                 touch.type = 'dblclick';
7119                                 handler(touch);
7120                                 last = null;
7121                         }
7122                 }
7123                 obj[pre + touchstart + id] = onTouchStart;
7124                 obj[pre + touchend + id] = onTouchEnd;
7125
7126                 // on pointer we need to listen on the document, otherwise a drag starting on the map and moving off screen
7127                 // will not come through to us, so we will lose track of how many touches are ongoing
7128                 var endElement = L.Browser.pointer ? document.documentElement : obj;
7129
7130                 obj.addEventListener(touchstart, onTouchStart, false);
7131                 endElement.addEventListener(touchend, onTouchEnd, false);
7132
7133                 if (L.Browser.pointer) {
7134                         endElement.addEventListener(L.DomEvent.POINTER_CANCEL, onTouchEnd, false);
7135                 }
7136
7137                 return this;
7138         },
7139
7140         removeDoubleTapListener: function (obj, id) {
7141                 var pre = '_leaflet_';
7142
7143                 obj.removeEventListener(this._touchstart, obj[pre + this._touchstart + id], false);
7144                 (L.Browser.pointer ? document.documentElement : obj).removeEventListener(
7145                         this._touchend, obj[pre + this._touchend + id], false);
7146
7147                 if (L.Browser.pointer) {
7148                         document.documentElement.removeEventListener(L.DomEvent.POINTER_CANCEL, obj[pre + this._touchend + id],
7149                                 false);
7150                 }
7151
7152                 return this;
7153         }
7154 });
7155
7156
7157 /*
7158  * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices.
7159  */
7160
7161 L.extend(L.DomEvent, {
7162
7163         //static
7164         POINTER_DOWN: L.Browser.msPointer ? 'MSPointerDown' : 'pointerdown',
7165         POINTER_MOVE: L.Browser.msPointer ? 'MSPointerMove' : 'pointermove',
7166         POINTER_UP: L.Browser.msPointer ? 'MSPointerUp' : 'pointerup',
7167         POINTER_CANCEL: L.Browser.msPointer ? 'MSPointerCancel' : 'pointercancel',
7168
7169         _pointers: [],
7170         _pointerDocumentListener: false,
7171
7172         // Provides a touch events wrapper for (ms)pointer events.
7173         // Based on changes by veproza https://github.com/CloudMade/Leaflet/pull/1019
7174         //ref http://www.w3.org/TR/pointerevents/ https://www.w3.org/Bugs/Public/show_bug.cgi?id=22890
7175
7176         addPointerListener: function (obj, type, handler, id) {
7177
7178                 switch (type) {
7179                 case 'touchstart':
7180                         return this.addPointerListenerStart(obj, type, handler, id);
7181                 case 'touchend':
7182                         return this.addPointerListenerEnd(obj, type, handler, id);
7183                 case 'touchmove':
7184                         return this.addPointerListenerMove(obj, type, handler, id);
7185                 default:
7186                         throw 'Unknown touch event type';
7187                 }
7188         },
7189
7190         addPointerListenerStart: function (obj, type, handler, id) {
7191                 var pre = '_leaflet_',
7192                     pointers = this._pointers;
7193
7194                 var cb = function (e) {
7195
7196                         L.DomEvent.preventDefault(e);
7197
7198                         var alreadyInArray = false;
7199                         for (var i = 0; i < pointers.length; i++) {
7200                                 if (pointers[i].pointerId === e.pointerId) {
7201                                         alreadyInArray = true;
7202                                         break;
7203                                 }
7204                         }
7205                         if (!alreadyInArray) {
7206                                 pointers.push(e);
7207                         }
7208
7209                         e.touches = pointers.slice();
7210                         e.changedTouches = [e];
7211
7212                         handler(e);
7213                 };
7214
7215                 obj[pre + 'touchstart' + id] = cb;
7216                 obj.addEventListener(this.POINTER_DOWN, cb, false);
7217
7218                 // need to also listen for end events to keep the _pointers list accurate
7219                 // this needs to be on the body and never go away
7220                 if (!this._pointerDocumentListener) {
7221                         var internalCb = function (e) {
7222                                 for (var i = 0; i < pointers.length; i++) {
7223                                         if (pointers[i].pointerId === e.pointerId) {
7224                                                 pointers.splice(i, 1);
7225                                                 break;
7226                                         }
7227                                 }
7228                         };
7229                         //We listen on the documentElement as any drags that end by moving the touch off the screen get fired there
7230                         document.documentElement.addEventListener(this.POINTER_UP, internalCb, false);
7231                         document.documentElement.addEventListener(this.POINTER_CANCEL, internalCb, false);
7232
7233                         this._pointerDocumentListener = true;
7234                 }
7235
7236                 return this;
7237         },
7238
7239         addPointerListenerMove: function (obj, type, handler, id) {
7240                 var pre = '_leaflet_',
7241                     touches = this._pointers;
7242
7243                 function cb(e) {
7244
7245                         // don't fire touch moves when mouse isn't down
7246                         if ((e.pointerType === e.MSPOINTER_TYPE_MOUSE || e.pointerType === 'mouse') && e.buttons === 0) { return; }
7247
7248                         for (var i = 0; i < touches.length; i++) {
7249                                 if (touches[i].pointerId === e.pointerId) {
7250                                         touches[i] = e;
7251                                         break;
7252                                 }
7253                         }
7254
7255                         e.touches = touches.slice();
7256                         e.changedTouches = [e];
7257
7258                         handler(e);
7259                 }
7260
7261                 obj[pre + 'touchmove' + id] = cb;
7262                 obj.addEventListener(this.POINTER_MOVE, cb, false);
7263
7264                 return this;
7265         },
7266
7267         addPointerListenerEnd: function (obj, type, handler, id) {
7268                 var pre = '_leaflet_',
7269                     touches = this._pointers;
7270
7271                 var cb = function (e) {
7272                         for (var i = 0; i < touches.length; i++) {
7273                                 if (touches[i].pointerId === e.pointerId) {
7274                                         touches.splice(i, 1);
7275                                         break;
7276                                 }
7277                         }
7278
7279                         e.touches = touches.slice();
7280                         e.changedTouches = [e];
7281
7282                         handler(e);
7283                 };
7284
7285                 obj[pre + 'touchend' + id] = cb;
7286                 obj.addEventListener(this.POINTER_UP, cb, false);
7287                 obj.addEventListener(this.POINTER_CANCEL, cb, false);
7288
7289                 return this;
7290         },
7291
7292         removePointerListener: function (obj, type, id) {
7293                 var pre = '_leaflet_',
7294                     cb = obj[pre + type + id];
7295
7296                 switch (type) {
7297                 case 'touchstart':
7298                         obj.removeEventListener(this.POINTER_DOWN, cb, false);
7299                         break;
7300                 case 'touchmove':
7301                         obj.removeEventListener(this.POINTER_MOVE, cb, false);
7302                         break;
7303                 case 'touchend':
7304                         obj.removeEventListener(this.POINTER_UP, cb, false);
7305                         obj.removeEventListener(this.POINTER_CANCEL, cb, false);
7306                         break;
7307                 }
7308
7309                 return this;
7310         }
7311 });
7312
7313
7314 /*
7315  * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers.
7316  */
7317
7318 L.Map.mergeOptions({
7319         touchZoom: L.Browser.touch && !L.Browser.android23,
7320         bounceAtZoomLimits: true
7321 });
7322
7323 L.Map.TouchZoom = L.Handler.extend({
7324         addHooks: function () {
7325                 L.DomEvent.on(this._map._container, 'touchstart', this._onTouchStart, this);
7326         },
7327
7328         removeHooks: function () {
7329                 L.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this);
7330         },
7331
7332         _onTouchStart: function (e) {
7333                 var map = this._map;
7334
7335                 if (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; }
7336
7337                 var p1 = map.mouseEventToLayerPoint(e.touches[0]),
7338                     p2 = map.mouseEventToLayerPoint(e.touches[1]),
7339                     viewCenter = map._getCenterLayerPoint();
7340
7341                 this._startCenter = p1.add(p2)._divideBy(2);
7342                 this._startDist = p1.distanceTo(p2);
7343
7344                 this._moved = false;
7345                 this._zooming = true;
7346
7347                 this._centerOffset = viewCenter.subtract(this._startCenter);
7348
7349                 if (map._panAnim) {
7350                         map._panAnim.stop();
7351                 }
7352
7353                 L.DomEvent
7354                     .on(document, 'touchmove', this._onTouchMove, this)
7355                     .on(document, 'touchend', this._onTouchEnd, this);
7356
7357                 L.DomEvent.preventDefault(e);
7358         },
7359
7360         _onTouchMove: function (e) {
7361                 var map = this._map;
7362
7363                 if (!e.touches || e.touches.length !== 2 || !this._zooming) { return; }
7364
7365                 var p1 = map.mouseEventToLayerPoint(e.touches[0]),
7366                     p2 = map.mouseEventToLayerPoint(e.touches[1]);
7367
7368                 this._scale = p1.distanceTo(p2) / this._startDist;
7369                 this._delta = p1._add(p2)._divideBy(2)._subtract(this._startCenter);
7370
7371                 if (this._scale === 1) { return; }
7372
7373                 if (!map.options.bounceAtZoomLimits) {
7374                         if ((map.getZoom() === map.getMinZoom() && this._scale < 1) ||
7375                             (map.getZoom() === map.getMaxZoom() && this._scale > 1)) { return; }
7376                 }
7377
7378                 if (!this._moved) {
7379                         L.DomUtil.addClass(map._mapPane, 'leaflet-touching');
7380
7381                         map
7382                             .fire('movestart')
7383                             .fire('zoomstart');
7384
7385                         this._moved = true;
7386                 }
7387
7388                 L.Util.cancelAnimFrame(this._animRequest);
7389                 this._animRequest = L.Util.requestAnimFrame(
7390                         this._updateOnMove, this, true, this._map._container);
7391
7392                 L.DomEvent.preventDefault(e);
7393         },
7394
7395         _updateOnMove: function () {
7396                 var map = this._map,
7397                     origin = this._getScaleOrigin(),
7398                     center = map.layerPointToLatLng(origin),
7399                     zoom = map.getScaleZoom(this._scale);
7400
7401                 map._animateZoom(center, zoom, this._startCenter, this._scale, this._delta, false, true);
7402         },
7403
7404         _onTouchEnd: function () {
7405                 if (!this._moved || !this._zooming) {
7406                         this._zooming = false;
7407                         return;
7408                 }
7409
7410                 var map = this._map;
7411
7412                 this._zooming = false;
7413                 L.DomUtil.removeClass(map._mapPane, 'leaflet-touching');
7414                 L.Util.cancelAnimFrame(this._animRequest);
7415
7416                 L.DomEvent
7417                     .off(document, 'touchmove', this._onTouchMove)
7418                     .off(document, 'touchend', this._onTouchEnd);
7419
7420                 var origin = this._getScaleOrigin(),
7421                     center = map.layerPointToLatLng(origin),
7422
7423                     oldZoom = map.getZoom(),
7424                     floatZoomDelta = map.getScaleZoom(this._scale) - oldZoom,
7425                     roundZoomDelta = (floatZoomDelta > 0 ?
7426                             Math.ceil(floatZoomDelta) : Math.floor(floatZoomDelta)),
7427
7428                     zoom = map._limitZoom(oldZoom + roundZoomDelta),
7429                     scale = map.getZoomScale(zoom) / this._scale;
7430
7431                 map._animateZoom(center, zoom, origin, scale);
7432         },
7433
7434         _getScaleOrigin: function () {
7435                 var centerOffset = this._centerOffset.subtract(this._delta).divideBy(this._scale);
7436                 return this._startCenter.add(centerOffset);
7437         }
7438 });
7439
7440 L.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom);
7441
7442
7443 /*
7444  * L.Map.Tap is used to enable mobile hacks like quick taps and long hold.
7445  */
7446
7447 L.Map.mergeOptions({
7448         tap: true,
7449         tapTolerance: 15
7450 });
7451
7452 L.Map.Tap = L.Handler.extend({
7453         addHooks: function () {
7454                 L.DomEvent.on(this._map._container, 'touchstart', this._onDown, this);
7455         },
7456
7457         removeHooks: function () {
7458                 L.DomEvent.off(this._map._container, 'touchstart', this._onDown, this);
7459         },
7460
7461         _onDown: function (e) {
7462                 if (!e.touches) { return; }
7463
7464                 L.DomEvent.preventDefault(e);
7465
7466                 this._fireClick = true;
7467
7468                 // don't simulate click or track longpress if more than 1 touch
7469                 if (e.touches.length > 1) {
7470                         this._fireClick = false;
7471                         clearTimeout(this._holdTimeout);
7472                         return;
7473                 }
7474
7475                 var first = e.touches[0],
7476                     el = first.target;
7477
7478                 this._startPos = this._newPos = new L.Point(first.clientX, first.clientY);
7479
7480                 // if touching a link, highlight it
7481                 if (el.tagName && el.tagName.toLowerCase() === 'a') {
7482                         L.DomUtil.addClass(el, 'leaflet-active');
7483                 }
7484
7485                 // simulate long hold but setting a timeout
7486                 this._holdTimeout = setTimeout(L.bind(function () {
7487                         if (this._isTapValid()) {
7488                                 this._fireClick = false;
7489                                 this._onUp();
7490                                 this._simulateEvent('contextmenu', first);
7491                         }
7492                 }, this), 1000);
7493
7494                 L.DomEvent
7495                         .on(document, 'touchmove', this._onMove, this)
7496                         .on(document, 'touchend', this._onUp, this);
7497         },
7498
7499         _onUp: function (e) {
7500                 clearTimeout(this._holdTimeout);
7501
7502                 L.DomEvent
7503                         .off(document, 'touchmove', this._onMove, this)
7504                         .off(document, 'touchend', this._onUp, this);
7505
7506                 if (this._fireClick && e && e.changedTouches) {
7507
7508                         var first = e.changedTouches[0],
7509                             el = first.target;
7510
7511                         if (el && el.tagName && el.tagName.toLowerCase() === 'a') {
7512                                 L.DomUtil.removeClass(el, 'leaflet-active');
7513                         }
7514
7515                         // simulate click if the touch didn't move too much
7516                         if (this._isTapValid()) {
7517                                 this._simulateEvent('click', first);
7518                         }
7519                 }
7520         },
7521
7522         _isTapValid: function () {
7523                 return this._newPos.distanceTo(this._startPos) <= this._map.options.tapTolerance;
7524         },
7525
7526         _onMove: function (e) {
7527                 var first = e.touches[0];
7528                 this._newPos = new L.Point(first.clientX, first.clientY);
7529         },
7530
7531         _simulateEvent: function (type, e) {
7532                 var simulatedEvent = document.createEvent('MouseEvents');
7533
7534                 simulatedEvent._simulated = true;
7535                 e.target._simulatedClick = true;
7536
7537                 simulatedEvent.initMouseEvent(
7538                         type, true, true, window, 1,
7539                         e.screenX, e.screenY,
7540                         e.clientX, e.clientY,
7541                         false, false, false, false, 0, null);
7542
7543                 e.target.dispatchEvent(simulatedEvent);
7544         }
7545 });
7546
7547 if (L.Browser.touch && !L.Browser.pointer) {
7548         L.Map.addInitHook('addHandler', 'tap', L.Map.Tap);
7549 }
7550
7551
7552 /*
7553  * L.Handler.ShiftDragZoom is used to add shift-drag zoom interaction to the map
7554   * (zoom to a selected bounding box), enabled by default.
7555  */
7556
7557 L.Map.mergeOptions({
7558         boxZoom: true
7559 });
7560
7561 L.Map.BoxZoom = L.Handler.extend({
7562         initialize: function (map) {
7563                 this._map = map;
7564                 this._container = map._container;
7565                 this._pane = map._panes.overlayPane;
7566                 this._moved = false;
7567         },
7568
7569         addHooks: function () {
7570                 L.DomEvent.on(this._container, 'mousedown', this._onMouseDown, this);
7571         },
7572
7573         removeHooks: function () {
7574                 L.DomEvent.off(this._container, 'mousedown', this._onMouseDown);
7575                 this._moved = false;
7576         },
7577
7578         moved: function () {
7579                 return this._moved;
7580         },
7581
7582         _onMouseDown: function (e) {
7583                 this._moved = false;
7584
7585                 if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; }
7586
7587                 L.DomUtil.disableTextSelection();
7588                 L.DomUtil.disableImageDrag();
7589
7590                 this._startLayerPoint = this._map.mouseEventToLayerPoint(e);
7591
7592                 L.DomEvent
7593                     .on(document, 'mousemove', this._onMouseMove, this)
7594                     .on(document, 'mouseup', this._onMouseUp, this)
7595                     .on(document, 'keydown', this._onKeyDown, this);
7596         },
7597
7598         _onMouseMove: function (e) {
7599                 if (!this._moved) {
7600                         this._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._pane);
7601                         L.DomUtil.setPosition(this._box, this._startLayerPoint);
7602
7603                         //TODO refactor: move cursor to styles
7604                         this._container.style.cursor = 'crosshair';
7605                         this._map.fire('boxzoomstart');
7606                 }
7607
7608                 var startPoint = this._startLayerPoint,
7609                     box = this._box,
7610
7611                     layerPoint = this._map.mouseEventToLayerPoint(e),
7612                     offset = layerPoint.subtract(startPoint),
7613
7614                     newPos = new L.Point(
7615                         Math.min(layerPoint.x, startPoint.x),
7616                         Math.min(layerPoint.y, startPoint.y));
7617
7618                 L.DomUtil.setPosition(box, newPos);
7619
7620                 this._moved = true;
7621
7622                 // TODO refactor: remove hardcoded 4 pixels
7623                 box.style.width  = (Math.max(0, Math.abs(offset.x) - 4)) + 'px';
7624                 box.style.height = (Math.max(0, Math.abs(offset.y) - 4)) + 'px';
7625         },
7626
7627         _finish: function () {
7628                 if (this._moved) {
7629                         this._pane.removeChild(this._box);
7630                         this._container.style.cursor = '';
7631                 }
7632
7633                 L.DomUtil.enableTextSelection();
7634                 L.DomUtil.enableImageDrag();
7635
7636                 L.DomEvent
7637                     .off(document, 'mousemove', this._onMouseMove)
7638                     .off(document, 'mouseup', this._onMouseUp)
7639                     .off(document, 'keydown', this._onKeyDown);
7640         },
7641
7642         _onMouseUp: function (e) {
7643
7644                 this._finish();
7645
7646                 var map = this._map,
7647                     layerPoint = map.mouseEventToLayerPoint(e);
7648
7649                 if (this._startLayerPoint.equals(layerPoint)) { return; }
7650
7651                 var bounds = new L.LatLngBounds(
7652                         map.layerPointToLatLng(this._startLayerPoint),
7653                         map.layerPointToLatLng(layerPoint));
7654
7655                 map.fitBounds(bounds);
7656
7657                 map.fire('boxzoomend', {
7658                         boxZoomBounds: bounds
7659                 });
7660         },
7661
7662         _onKeyDown: function (e) {
7663                 if (e.keyCode === 27) {
7664                         this._finish();
7665                 }
7666         }
7667 });
7668
7669 L.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom);
7670
7671
7672 /*
7673  * L.Map.Keyboard is handling keyboard interaction with the map, enabled by default.
7674  */
7675
7676 L.Map.mergeOptions({
7677         keyboard: true,
7678         keyboardPanOffset: 80,
7679         keyboardZoomOffset: 1
7680 });
7681
7682 L.Map.Keyboard = L.Handler.extend({
7683
7684         keyCodes: {
7685                 left:    [37],
7686                 right:   [39],
7687                 down:    [40],
7688                 up:      [38],
7689                 zoomIn:  [187, 107, 61, 171],
7690                 zoomOut: [189, 109, 173]
7691         },
7692
7693         initialize: function (map) {
7694                 this._map = map;
7695
7696                 this._setPanOffset(map.options.keyboardPanOffset);
7697                 this._setZoomOffset(map.options.keyboardZoomOffset);
7698         },
7699
7700         addHooks: function () {
7701                 var container = this._map._container;
7702
7703                 // make the container focusable by tabbing
7704                 if (container.tabIndex === -1) {
7705                         container.tabIndex = '0';
7706                 }
7707
7708                 L.DomEvent
7709                     .on(container, 'focus', this._onFocus, this)
7710                     .on(container, 'blur', this._onBlur, this)
7711                     .on(container, 'mousedown', this._onMouseDown, this);
7712
7713                 this._map
7714                     .on('focus', this._addHooks, this)
7715                     .on('blur', this._removeHooks, this);
7716         },
7717
7718         removeHooks: function () {
7719                 this._removeHooks();
7720
7721                 var container = this._map._container;
7722
7723                 L.DomEvent
7724                     .off(container, 'focus', this._onFocus, this)
7725                     .off(container, 'blur', this._onBlur, this)
7726                     .off(container, 'mousedown', this._onMouseDown, this);
7727
7728                 this._map
7729                     .off('focus', this._addHooks, this)
7730                     .off('blur', this._removeHooks, this);
7731         },
7732
7733         _onMouseDown: function () {
7734                 if (this._focused) { return; }
7735
7736                 var body = document.body,
7737                     docEl = document.documentElement,
7738                     top = body.scrollTop || docEl.scrollTop,
7739                     left = body.scrollLeft || docEl.scrollLeft;
7740
7741                 this._map._container.focus();
7742
7743                 window.scrollTo(left, top);
7744         },
7745
7746         _onFocus: function () {
7747                 this._focused = true;
7748                 this._map.fire('focus');
7749         },
7750
7751         _onBlur: function () {
7752                 this._focused = false;
7753                 this._map.fire('blur');
7754         },
7755
7756         _setPanOffset: function (pan) {
7757                 var keys = this._panKeys = {},
7758                     codes = this.keyCodes,
7759                     i, len;
7760
7761                 for (i = 0, len = codes.left.length; i < len; i++) {
7762                         keys[codes.left[i]] = [-1 * pan, 0];
7763                 }
7764                 for (i = 0, len = codes.right.length; i < len; i++) {
7765                         keys[codes.right[i]] = [pan, 0];
7766                 }
7767                 for (i = 0, len = codes.down.length; i < len; i++) {
7768                         keys[codes.down[i]] = [0, pan];
7769                 }
7770                 for (i = 0, len = codes.up.length; i < len; i++) {
7771                         keys[codes.up[i]] = [0, -1 * pan];
7772                 }
7773         },
7774
7775         _setZoomOffset: function (zoom) {
7776                 var keys = this._zoomKeys = {},
7777                     codes = this.keyCodes,
7778                     i, len;
7779
7780                 for (i = 0, len = codes.zoomIn.length; i < len; i++) {
7781                         keys[codes.zoomIn[i]] = zoom;
7782                 }
7783                 for (i = 0, len = codes.zoomOut.length; i < len; i++) {
7784                         keys[codes.zoomOut[i]] = -zoom;
7785                 }
7786         },
7787
7788         _addHooks: function () {
7789                 L.DomEvent.on(document, 'keydown', this._onKeyDown, this);
7790         },
7791
7792         _removeHooks: function () {
7793                 L.DomEvent.off(document, 'keydown', this._onKeyDown, this);
7794         },
7795
7796         _onKeyDown: function (e) {
7797                 var key = e.keyCode,
7798                     map = this._map;
7799
7800                 if (key in this._panKeys) {
7801
7802                         if (map._panAnim && map._panAnim._inProgress) { return; }
7803
7804                         map.panBy(this._panKeys[key]);
7805
7806                         if (map.options.maxBounds) {
7807                                 map.panInsideBounds(map.options.maxBounds);
7808                         }
7809
7810                 } else if (key in this._zoomKeys) {
7811                         map.setZoom(map.getZoom() + this._zoomKeys[key]);
7812
7813                 } else {
7814                         return;
7815                 }
7816
7817                 L.DomEvent.stop(e);
7818         }
7819 });
7820
7821 L.Map.addInitHook('addHandler', 'keyboard', L.Map.Keyboard);
7822
7823
7824 /*
7825  * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable.
7826  */
7827
7828 L.Handler.MarkerDrag = L.Handler.extend({
7829         initialize: function (marker) {
7830                 this._marker = marker;
7831         },
7832
7833         addHooks: function () {
7834                 var icon = this._marker._icon;
7835                 if (!this._draggable) {
7836                         this._draggable = new L.Draggable(icon, icon);
7837                 }
7838
7839                 this._draggable
7840                         .on('dragstart', this._onDragStart, this)
7841                         .on('drag', this._onDrag, this)
7842                         .on('dragend', this._onDragEnd, this);
7843                 this._draggable.enable();
7844                 L.DomUtil.addClass(this._marker._icon, 'leaflet-marker-draggable');
7845         },
7846
7847         removeHooks: function () {
7848                 this._draggable
7849                         .off('dragstart', this._onDragStart, this)
7850                         .off('drag', this._onDrag, this)
7851                         .off('dragend', this._onDragEnd, this);
7852
7853                 this._draggable.disable();
7854                 L.DomUtil.removeClass(this._marker._icon, 'leaflet-marker-draggable');
7855         },
7856
7857         moved: function () {
7858                 return this._draggable && this._draggable._moved;
7859         },
7860
7861         _onDragStart: function () {
7862                 this._marker
7863                     .closePopup()
7864                     .fire('movestart')
7865                     .fire('dragstart');
7866         },
7867
7868         _onDrag: function () {
7869                 var marker = this._marker,
7870                     shadow = marker._shadow,
7871                     iconPos = L.DomUtil.getPosition(marker._icon),
7872                     latlng = marker._map.layerPointToLatLng(iconPos);
7873
7874                 // update shadow position
7875                 if (shadow) {
7876                         L.DomUtil.setPosition(shadow, iconPos);
7877                 }
7878
7879                 marker._latlng = latlng;
7880
7881                 marker
7882                     .fire('move', {latlng: latlng})
7883                     .fire('drag');
7884         },
7885
7886         _onDragEnd: function (e) {
7887                 this._marker
7888                     .fire('moveend')
7889                     .fire('dragend', e);
7890         }
7891 });
7892
7893
7894 /*
7895  * L.Control is a base class for implementing map controls. Handles positioning.
7896  * All other controls extend from this class.
7897  */
7898
7899 L.Control = L.Class.extend({
7900         options: {
7901                 position: 'topright'
7902         },
7903
7904         initialize: function (options) {
7905                 L.setOptions(this, options);
7906         },
7907
7908         getPosition: function () {
7909                 return this.options.position;
7910         },
7911
7912         setPosition: function (position) {
7913                 var map = this._map;
7914
7915                 if (map) {
7916                         map.removeControl(this);
7917                 }
7918
7919                 this.options.position = position;
7920
7921                 if (map) {
7922                         map.addControl(this);
7923                 }
7924
7925                 return this;
7926         },
7927
7928         getContainer: function () {
7929                 return this._container;
7930         },
7931
7932         addTo: function (map) {
7933                 this._map = map;
7934
7935                 var container = this._container = this.onAdd(map),
7936                     pos = this.getPosition(),
7937                     corner = map._controlCorners[pos];
7938
7939                 L.DomUtil.addClass(container, 'leaflet-control');
7940
7941                 if (pos.indexOf('bottom') !== -1) {
7942                         corner.insertBefore(container, corner.firstChild);
7943                 } else {
7944                         corner.appendChild(container);
7945                 }
7946
7947                 return this;
7948         },
7949
7950         removeFrom: function (map) {
7951                 var pos = this.getPosition(),
7952                     corner = map._controlCorners[pos];
7953
7954                 corner.removeChild(this._container);
7955                 this._map = null;
7956
7957                 if (this.onRemove) {
7958                         this.onRemove(map);
7959                 }
7960
7961                 return this;
7962         },
7963
7964         _refocusOnMap: function () {
7965                 if (this._map) {
7966                         this._map.getContainer().focus();
7967                 }
7968         }
7969 });
7970
7971 L.control = function (options) {
7972         return new L.Control(options);
7973 };
7974
7975
7976 // adds control-related methods to L.Map
7977
7978 L.Map.include({
7979         addControl: function (control) {
7980                 control.addTo(this);
7981                 return this;
7982         },
7983
7984         removeControl: function (control) {
7985                 control.removeFrom(this);
7986                 return this;
7987         },
7988
7989         _initControlPos: function () {
7990                 var corners = this._controlCorners = {},
7991                     l = 'leaflet-',
7992                     container = this._controlContainer =
7993                             L.DomUtil.create('div', l + 'control-container', this._container);
7994
7995                 function createCorner(vSide, hSide) {
7996                         var className = l + vSide + ' ' + l + hSide;
7997
7998                         corners[vSide + hSide] = L.DomUtil.create('div', className, container);
7999                 }
8000
8001                 createCorner('top', 'left');
8002                 createCorner('top', 'right');
8003                 createCorner('bottom', 'left');
8004                 createCorner('bottom', 'right');
8005         },
8006
8007         _clearControlPos: function () {
8008                 this._container.removeChild(this._controlContainer);
8009         }
8010 });
8011
8012
8013 /*
8014  * L.Control.Zoom is used for the default zoom buttons on the map.
8015  */
8016
8017 L.Control.Zoom = L.Control.extend({
8018         options: {
8019                 position: 'topleft',
8020                 zoomInText: '+',
8021                 zoomInTitle: 'Zoom in',
8022                 zoomOutText: '-',
8023                 zoomOutTitle: 'Zoom out'
8024         },
8025
8026         onAdd: function (map) {
8027                 var zoomName = 'leaflet-control-zoom',
8028                     container = L.DomUtil.create('div', zoomName + ' leaflet-bar');
8029
8030                 this._map = map;
8031
8032                 this._zoomInButton  = this._createButton(
8033                         this.options.zoomInText, this.options.zoomInTitle,
8034                         zoomName + '-in',  container, this._zoomIn,  this);
8035                 this._zoomOutButton = this._createButton(
8036                         this.options.zoomOutText, this.options.zoomOutTitle,
8037                         zoomName + '-out', container, this._zoomOut, this);
8038
8039                 this._updateDisabled();
8040                 map.on('zoomend zoomlevelschange', this._updateDisabled, this);
8041
8042                 return container;
8043         },
8044
8045         onRemove: function (map) {
8046                 map.off('zoomend zoomlevelschange', this._updateDisabled, this);
8047         },
8048
8049         _zoomIn: function (e) {
8050                 this._map.zoomIn(e.shiftKey ? 3 : 1);
8051         },
8052
8053         _zoomOut: function (e) {
8054                 this._map.zoomOut(e.shiftKey ? 3 : 1);
8055         },
8056
8057         _createButton: function (html, title, className, container, fn, context) {
8058                 var link = L.DomUtil.create('a', className, container);
8059                 link.innerHTML = html;
8060                 link.href = '#';
8061                 link.title = title;
8062
8063                 var stop = L.DomEvent.stopPropagation;
8064
8065                 L.DomEvent
8066                     .on(link, 'click', stop)
8067                     .on(link, 'mousedown', stop)
8068                     .on(link, 'dblclick', stop)
8069                     .on(link, 'click', L.DomEvent.preventDefault)
8070                     .on(link, 'click', fn, context)
8071                     .on(link, 'click', this._refocusOnMap, context);
8072
8073                 return link;
8074         },
8075
8076         _updateDisabled: function () {
8077                 var map = this._map,
8078                         className = 'leaflet-disabled';
8079
8080                 L.DomUtil.removeClass(this._zoomInButton, className);
8081                 L.DomUtil.removeClass(this._zoomOutButton, className);
8082
8083                 if (map._zoom === map.getMinZoom()) {
8084                         L.DomUtil.addClass(this._zoomOutButton, className);
8085                 }
8086                 if (map._zoom === map.getMaxZoom()) {
8087                         L.DomUtil.addClass(this._zoomInButton, className);
8088                 }
8089         }
8090 });
8091
8092 L.Map.mergeOptions({
8093         zoomControl: true
8094 });
8095
8096 L.Map.addInitHook(function () {
8097         if (this.options.zoomControl) {
8098                 this.zoomControl = new L.Control.Zoom();
8099                 this.addControl(this.zoomControl);
8100         }
8101 });
8102
8103 L.control.zoom = function (options) {
8104         return new L.Control.Zoom(options);
8105 };
8106
8107
8108
8109 /*
8110  * L.Control.Attribution is used for displaying attribution on the map (added by default).
8111  */
8112
8113 L.Control.Attribution = L.Control.extend({
8114         options: {
8115                 position: 'bottomright',
8116                 prefix: '<a href="http://leafletjs.com" title="A JS library for interactive maps">Leaflet</a>'
8117         },
8118
8119         initialize: function (options) {
8120                 L.setOptions(this, options);
8121
8122                 this._attributions = {};
8123         },
8124
8125         onAdd: function (map) {
8126                 this._container = L.DomUtil.create('div', 'leaflet-control-attribution');
8127                 L.DomEvent.disableClickPropagation(this._container);
8128
8129                 for (var i in map._layers) {
8130                         if (map._layers[i].getAttribution) {
8131                                 this.addAttribution(map._layers[i].getAttribution());
8132                         }
8133                 }
8134
8135                 map
8136                     .on('layeradd', this._onLayerAdd, this)
8137                     .on('layerremove', this._onLayerRemove, this);
8138
8139                 this._update();
8140
8141                 return this._container;
8142         },
8143
8144         onRemove: function (map) {
8145                 map
8146                     .off('layeradd', this._onLayerAdd)
8147                     .off('layerremove', this._onLayerRemove);
8148
8149         },
8150
8151         setPrefix: function (prefix) {
8152                 this.options.prefix = prefix;
8153                 this._update();
8154                 return this;
8155         },
8156
8157         addAttribution: function (text) {
8158                 if (!text) { return; }
8159
8160                 if (!this._attributions[text]) {
8161                         this._attributions[text] = 0;
8162                 }
8163                 this._attributions[text]++;
8164
8165                 this._update();
8166
8167                 return this;
8168         },
8169
8170         removeAttribution: function (text) {
8171                 if (!text) { return; }
8172
8173                 if (this._attributions[text]) {
8174                         this._attributions[text]--;
8175                         this._update();
8176                 }
8177
8178                 return this;
8179         },
8180
8181         _update: function () {
8182                 if (!this._map) { return; }
8183
8184                 var attribs = [];
8185
8186                 for (var i in this._attributions) {
8187                         if (this._attributions[i]) {
8188                                 attribs.push(i);
8189                         }
8190                 }
8191
8192                 var prefixAndAttribs = [];
8193
8194                 if (this.options.prefix) {
8195                         prefixAndAttribs.push(this.options.prefix);
8196                 }
8197                 if (attribs.length) {
8198                         prefixAndAttribs.push(attribs.join(', '));
8199                 }
8200
8201                 this._container.innerHTML = prefixAndAttribs.join(' | ');
8202         },
8203
8204         _onLayerAdd: function (e) {
8205                 if (e.layer.getAttribution) {
8206                         this.addAttribution(e.layer.getAttribution());
8207                 }
8208         },
8209
8210         _onLayerRemove: function (e) {
8211                 if (e.layer.getAttribution) {
8212                         this.removeAttribution(e.layer.getAttribution());
8213                 }
8214         }
8215 });
8216
8217 L.Map.mergeOptions({
8218         attributionControl: true
8219 });
8220
8221 L.Map.addInitHook(function () {
8222         if (this.options.attributionControl) {
8223                 this.attributionControl = (new L.Control.Attribution()).addTo(this);
8224         }
8225 });
8226
8227 L.control.attribution = function (options) {
8228         return new L.Control.Attribution(options);
8229 };
8230
8231
8232 /*
8233  * L.Control.Scale is used for displaying metric/imperial scale on the map.
8234  */
8235
8236 L.Control.Scale = L.Control.extend({
8237         options: {
8238                 position: 'bottomleft',
8239                 maxWidth: 100,
8240                 metric: true,
8241                 imperial: true,
8242                 updateWhenIdle: false
8243         },
8244
8245         onAdd: function (map) {
8246                 this._map = map;
8247
8248                 var className = 'leaflet-control-scale',
8249                     container = L.DomUtil.create('div', className),
8250                     options = this.options;
8251
8252                 this._addScales(options, className, container);
8253
8254                 map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
8255                 map.whenReady(this._update, this);
8256
8257                 return container;
8258         },
8259
8260         onRemove: function (map) {
8261                 map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
8262         },
8263
8264         _addScales: function (options, className, container) {
8265                 if (options.metric) {
8266                         this._mScale = L.DomUtil.create('div', className + '-line', container);
8267                 }
8268                 if (options.imperial) {
8269                         this._iScale = L.DomUtil.create('div', className + '-line', container);
8270                 }
8271         },
8272
8273         _update: function () {
8274                 var bounds = this._map.getBounds(),
8275                     centerLat = bounds.getCenter().lat,
8276                     halfWorldMeters = 6378137 * Math.PI * Math.cos(centerLat * Math.PI / 180),
8277                     dist = halfWorldMeters * (bounds.getNorthEast().lng - bounds.getSouthWest().lng) / 180,
8278
8279                     size = this._map.getSize(),
8280                     options = this.options,
8281                     maxMeters = 0;
8282
8283                 if (size.x > 0) {
8284                         maxMeters = dist * (options.maxWidth / size.x);
8285                 }
8286
8287                 this._updateScales(options, maxMeters);
8288         },
8289
8290         _updateScales: function (options, maxMeters) {
8291                 if (options.metric && maxMeters) {
8292                         this._updateMetric(maxMeters);
8293                 }
8294
8295                 if (options.imperial && maxMeters) {
8296                         this._updateImperial(maxMeters);
8297                 }
8298         },
8299
8300         _updateMetric: function (maxMeters) {
8301                 var meters = this._getRoundNum(maxMeters);
8302
8303                 this._mScale.style.width = this._getScaleWidth(meters / maxMeters) + 'px';
8304                 this._mScale.innerHTML = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km';
8305         },
8306
8307         _updateImperial: function (maxMeters) {
8308                 var maxFeet = maxMeters * 3.2808399,
8309                     scale = this._iScale,
8310                     maxMiles, miles, feet;
8311
8312                 if (maxFeet > 5280) {
8313                         maxMiles = maxFeet / 5280;
8314                         miles = this._getRoundNum(maxMiles);
8315
8316                         scale.style.width = this._getScaleWidth(miles / maxMiles) + 'px';
8317                         scale.innerHTML = miles + ' mi';
8318
8319                 } else {
8320                         feet = this._getRoundNum(maxFeet);
8321
8322                         scale.style.width = this._getScaleWidth(feet / maxFeet) + 'px';
8323                         scale.innerHTML = feet + ' ft';
8324                 }
8325         },
8326
8327         _getScaleWidth: function (ratio) {
8328                 return Math.round(this.options.maxWidth * ratio) - 10;
8329         },
8330
8331         _getRoundNum: function (num) {
8332                 var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1),
8333                     d = num / pow10;
8334
8335                 d = d >= 10 ? 10 : d >= 5 ? 5 : d >= 3 ? 3 : d >= 2 ? 2 : 1;
8336
8337                 return pow10 * d;
8338         }
8339 });
8340
8341 L.control.scale = function (options) {
8342         return new L.Control.Scale(options);
8343 };
8344
8345
8346 /*
8347  * L.Control.Layers is a control to allow users to switch between different layers on the map.
8348  */
8349
8350 L.Control.Layers = L.Control.extend({
8351         options: {
8352                 collapsed: true,
8353                 position: 'topright',
8354                 autoZIndex: true
8355         },
8356
8357         initialize: function (baseLayers, overlays, options) {
8358                 L.setOptions(this, options);
8359
8360                 this._layers = {};
8361                 this._lastZIndex = 0;
8362                 this._handlingClick = false;
8363
8364                 for (var i in baseLayers) {
8365                         this._addLayer(baseLayers[i], i);
8366                 }
8367
8368                 for (i in overlays) {
8369                         this._addLayer(overlays[i], i, true);
8370                 }
8371         },
8372
8373         onAdd: function (map) {
8374                 this._initLayout();
8375                 this._update();
8376
8377                 map
8378                     .on('layeradd', this._onLayerChange, this)
8379                     .on('layerremove', this._onLayerChange, this);
8380
8381                 return this._container;
8382         },
8383
8384         onRemove: function (map) {
8385                 map
8386                     .off('layeradd', this._onLayerChange, this)
8387                     .off('layerremove', this._onLayerChange, this);
8388         },
8389
8390         addBaseLayer: function (layer, name) {
8391                 this._addLayer(layer, name);
8392                 this._update();
8393                 return this;
8394         },
8395
8396         addOverlay: function (layer, name) {
8397                 this._addLayer(layer, name, true);
8398                 this._update();
8399                 return this;
8400         },
8401
8402         removeLayer: function (layer) {
8403                 var id = L.stamp(layer);
8404                 delete this._layers[id];
8405                 this._update();
8406                 return this;
8407         },
8408
8409         _initLayout: function () {
8410                 var className = 'leaflet-control-layers',
8411                     container = this._container = L.DomUtil.create('div', className);
8412
8413                 //Makes this work on IE10 Touch devices by stopping it from firing a mouseout event when the touch is released
8414                 container.setAttribute('aria-haspopup', true);
8415
8416                 if (!L.Browser.touch) {
8417                         L.DomEvent
8418                                 .disableClickPropagation(container)
8419                                 .disableScrollPropagation(container);
8420                 } else {
8421                         L.DomEvent.on(container, 'click', L.DomEvent.stopPropagation);
8422                 }
8423
8424                 var form = this._form = L.DomUtil.create('form', className + '-list');
8425
8426                 if (this.options.collapsed) {
8427                         if (!L.Browser.android) {
8428                                 L.DomEvent
8429                                     .on(container, 'mouseover', this._expand, this)
8430                                     .on(container, 'mouseout', this._collapse, this);
8431                         }
8432                         var link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container);
8433                         link.href = '#';
8434                         link.title = 'Layers';
8435
8436                         if (L.Browser.touch) {
8437                                 L.DomEvent
8438                                     .on(link, 'click', L.DomEvent.stop)
8439                                     .on(link, 'click', this._expand, this);
8440                         }
8441                         else {
8442                                 L.DomEvent.on(link, 'focus', this._expand, this);
8443                         }
8444                         //Work around for Firefox android issue https://github.com/Leaflet/Leaflet/issues/2033
8445                         L.DomEvent.on(form, 'click', function () {
8446                                 setTimeout(L.bind(this._onInputClick, this), 0);
8447                         }, this);
8448
8449                         this._map.on('click', this._collapse, this);
8450                         // TODO keyboard accessibility
8451                 } else {
8452                         this._expand();
8453                 }
8454
8455                 this._baseLayersList = L.DomUtil.create('div', className + '-base', form);
8456                 this._separator = L.DomUtil.create('div', className + '-separator', form);
8457                 this._overlaysList = L.DomUtil.create('div', className + '-overlays', form);
8458
8459                 container.appendChild(form);
8460         },
8461
8462         _addLayer: function (layer, name, overlay) {
8463                 var id = L.stamp(layer);
8464
8465                 this._layers[id] = {
8466                         layer: layer,
8467                         name: name,
8468                         overlay: overlay
8469                 };
8470
8471                 if (this.options.autoZIndex && layer.setZIndex) {
8472                         this._lastZIndex++;
8473                         layer.setZIndex(this._lastZIndex);
8474                 }
8475         },
8476
8477         _update: function () {
8478                 if (!this._container) {
8479                         return;
8480                 }
8481
8482                 this._baseLayersList.innerHTML = '';
8483                 this._overlaysList.innerHTML = '';
8484
8485                 var baseLayersPresent = false,
8486                     overlaysPresent = false,
8487                     i, obj;
8488
8489                 for (i in this._layers) {
8490                         obj = this._layers[i];
8491                         this._addItem(obj);
8492                         overlaysPresent = overlaysPresent || obj.overlay;
8493                         baseLayersPresent = baseLayersPresent || !obj.overlay;
8494                 }
8495
8496                 this._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none';
8497         },
8498
8499         _onLayerChange: function (e) {
8500                 var obj = this._layers[L.stamp(e.layer)];
8501
8502                 if (!obj) { return; }
8503
8504                 if (!this._handlingClick) {
8505                         this._update();
8506                 }
8507
8508                 var type = obj.overlay ?
8509                         (e.type === 'layeradd' ? 'overlayadd' : 'overlayremove') :
8510                         (e.type === 'layeradd' ? 'baselayerchange' : null);
8511
8512                 if (type) {
8513                         this._map.fire(type, obj);
8514                 }
8515         },
8516
8517         // IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe)
8518         _createRadioElement: function (name, checked) {
8519
8520                 var radioHtml = '<input type="radio" class="leaflet-control-layers-selector" name="' + name + '"';
8521                 if (checked) {
8522                         radioHtml += ' checked="checked"';
8523                 }
8524                 radioHtml += '/>';
8525
8526                 var radioFragment = document.createElement('div');
8527                 radioFragment.innerHTML = radioHtml;
8528
8529                 return radioFragment.firstChild;
8530         },
8531
8532         _addItem: function (obj) {
8533                 var label = document.createElement('label'),
8534                     input,
8535                     checked = this._map.hasLayer(obj.layer);
8536
8537                 if (obj.overlay) {
8538                         input = document.createElement('input');
8539                         input.type = 'checkbox';
8540                         input.className = 'leaflet-control-layers-selector';
8541                         input.defaultChecked = checked;
8542                 } else {
8543                         input = this._createRadioElement('leaflet-base-layers', checked);
8544                 }
8545
8546                 input.layerId = L.stamp(obj.layer);
8547
8548                 L.DomEvent.on(input, 'click', this._onInputClick, this);
8549
8550                 var name = document.createElement('span');
8551                 name.innerHTML = ' ' + obj.name;
8552
8553                 label.appendChild(input);
8554                 label.appendChild(name);
8555
8556                 var container = obj.overlay ? this._overlaysList : this._baseLayersList;
8557                 container.appendChild(label);
8558
8559                 return label;
8560         },
8561
8562         _onInputClick: function () {
8563                 var i, input, obj,
8564                     inputs = this._form.getElementsByTagName('input'),
8565                     inputsLen = inputs.length;
8566
8567                 this._handlingClick = true;
8568
8569                 for (i = 0; i < inputsLen; i++) {
8570                         input = inputs[i];
8571                         obj = this._layers[input.layerId];
8572
8573                         if (input.checked && !this._map.hasLayer(obj.layer)) {
8574                                 this._map.addLayer(obj.layer);
8575
8576                         } else if (!input.checked && this._map.hasLayer(obj.layer)) {
8577                                 this._map.removeLayer(obj.layer);
8578                         }
8579                 }
8580
8581                 this._handlingClick = false;
8582
8583                 this._refocusOnMap();
8584         },
8585
8586         _expand: function () {
8587                 L.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded');
8588         },
8589
8590         _collapse: function () {
8591                 this._container.className = this._container.className.replace(' leaflet-control-layers-expanded', '');
8592         }
8593 });
8594
8595 L.control.layers = function (baseLayers, overlays, options) {
8596         return new L.Control.Layers(baseLayers, overlays, options);
8597 };
8598
8599
8600 /*
8601  * L.PosAnimation is used by Leaflet internally for pan animations.
8602  */
8603
8604 L.PosAnimation = L.Class.extend({
8605         includes: L.Mixin.Events,
8606
8607         run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number])
8608                 this.stop();
8609
8610                 this._el = el;
8611                 this._inProgress = true;
8612                 this._newPos = newPos;
8613
8614                 this.fire('start');
8615
8616                 el.style[L.DomUtil.TRANSITION] = 'all ' + (duration || 0.25) +
8617                         's cubic-bezier(0,0,' + (easeLinearity || 0.5) + ',1)';
8618
8619                 L.DomEvent.on(el, L.DomUtil.TRANSITION_END, this._onTransitionEnd, this);
8620                 L.DomUtil.setPosition(el, newPos);
8621
8622                 // toggle reflow, Chrome flickers for some reason if you don't do this
8623                 L.Util.falseFn(el.offsetWidth);
8624
8625                 // there's no native way to track value updates of transitioned properties, so we imitate this
8626                 this._stepTimer = setInterval(L.bind(this._onStep, this), 50);
8627         },
8628
8629         stop: function () {
8630                 if (!this._inProgress) { return; }
8631
8632                 // if we just removed the transition property, the element would jump to its final position,
8633                 // so we need to make it stay at the current position
8634
8635                 L.DomUtil.setPosition(this._el, this._getPos());
8636                 this._onTransitionEnd();
8637                 L.Util.falseFn(this._el.offsetWidth); // force reflow in case we are about to start a new animation
8638         },
8639
8640         _onStep: function () {
8641                 var stepPos = this._getPos();
8642                 if (!stepPos) {
8643                         this._onTransitionEnd();
8644                         return;
8645                 }
8646                 // jshint camelcase: false
8647                 // make L.DomUtil.getPosition return intermediate position value during animation
8648                 this._el._leaflet_pos = stepPos;
8649
8650                 this.fire('step');
8651         },
8652
8653         // you can't easily get intermediate values of properties animated with CSS3 Transitions,
8654         // we need to parse computed style (in case of transform it returns matrix string)
8655
8656         _transformRe: /([-+]?(?:\d*\.)?\d+)\D*, ([-+]?(?:\d*\.)?\d+)\D*\)/,
8657
8658         _getPos: function () {
8659                 var left, top, matches,
8660                     el = this._el,
8661                     style = window.getComputedStyle(el);
8662
8663                 if (L.Browser.any3d) {
8664                         matches = style[L.DomUtil.TRANSFORM].match(this._transformRe);
8665                         if (!matches) { return; }
8666                         left = parseFloat(matches[1]);
8667                         top  = parseFloat(matches[2]);
8668                 } else {
8669                         left = parseFloat(style.left);
8670                         top  = parseFloat(style.top);
8671                 }
8672
8673                 return new L.Point(left, top, true);
8674         },
8675
8676         _onTransitionEnd: function () {
8677                 L.DomEvent.off(this._el, L.DomUtil.TRANSITION_END, this._onTransitionEnd, this);
8678
8679                 if (!this._inProgress) { return; }
8680                 this._inProgress = false;
8681
8682                 this._el.style[L.DomUtil.TRANSITION] = '';
8683
8684                 // jshint camelcase: false
8685                 // make sure L.DomUtil.getPosition returns the final position value after animation
8686                 this._el._leaflet_pos = this._newPos;
8687
8688                 clearInterval(this._stepTimer);
8689
8690                 this.fire('step').fire('end');
8691         }
8692
8693 });
8694
8695
8696 /*
8697  * Extends L.Map to handle panning animations.
8698  */
8699
8700 L.Map.include({
8701
8702         setView: function (center, zoom, options) {
8703
8704                 zoom = zoom === undefined ? this._zoom : this._limitZoom(zoom);
8705                 center = this._limitCenter(L.latLng(center), zoom, this.options.maxBounds);
8706                 options = options || {};
8707
8708                 if (this._panAnim) {
8709                         this._panAnim.stop();
8710                 }
8711
8712                 if (this._loaded && !options.reset && options !== true) {
8713
8714                         if (options.animate !== undefined) {
8715                                 options.zoom = L.extend({animate: options.animate}, options.zoom);
8716                                 options.pan = L.extend({animate: options.animate}, options.pan);
8717                         }
8718
8719                         // try animating pan or zoom
8720                         var animated = (this._zoom !== zoom) ?
8721                                 this._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) :
8722                                 this._tryAnimatedPan(center, options.pan);
8723
8724                         if (animated) {
8725                                 // prevent resize handler call, the view will refresh after animation anyway
8726                                 clearTimeout(this._sizeTimer);
8727                                 return this;
8728                         }
8729                 }
8730
8731                 // animation didn't start, just reset the map view
8732                 this._resetView(center, zoom);
8733
8734                 return this;
8735         },
8736
8737         panBy: function (offset, options) {
8738                 offset = L.point(offset).round();
8739                 options = options || {};
8740
8741                 if (!offset.x && !offset.y) {
8742                         return this;
8743                 }
8744
8745                 if (!this._panAnim) {
8746                         this._panAnim = new L.PosAnimation();
8747
8748                         this._panAnim.on({
8749                                 'step': this._onPanTransitionStep,
8750                                 'end': this._onPanTransitionEnd
8751                         }, this);
8752                 }
8753
8754                 // don't fire movestart if animating inertia
8755                 if (!options.noMoveStart) {
8756                         this.fire('movestart');
8757                 }
8758
8759                 // animate pan unless animate: false specified
8760                 if (options.animate !== false) {
8761                         L.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim');
8762
8763                         var newPos = this._getMapPanePos().subtract(offset);
8764                         this._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity);
8765                 } else {
8766                         this._rawPanBy(offset);
8767                         this.fire('move').fire('moveend');
8768                 }
8769
8770                 return this;
8771         },
8772
8773         _onPanTransitionStep: function () {
8774                 this.fire('move');
8775         },
8776
8777         _onPanTransitionEnd: function () {
8778                 L.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim');
8779                 this.fire('moveend');
8780         },
8781
8782         _tryAnimatedPan: function (center, options) {
8783                 // difference between the new and current centers in pixels
8784                 var offset = this._getCenterOffset(center)._floor();
8785
8786                 // don't animate too far unless animate: true specified in options
8787                 if ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; }
8788
8789                 this.panBy(offset, options);
8790
8791                 return true;
8792         }
8793 });
8794
8795
8796 /*
8797  * L.PosAnimation fallback implementation that powers Leaflet pan animations
8798  * in browsers that don't support CSS3 Transitions.
8799  */
8800
8801 L.PosAnimation = L.DomUtil.TRANSITION ? L.PosAnimation : L.PosAnimation.extend({
8802
8803         run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number])
8804                 this.stop();
8805
8806                 this._el = el;
8807                 this._inProgress = true;
8808                 this._duration = duration || 0.25;
8809                 this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2);
8810
8811                 this._startPos = L.DomUtil.getPosition(el);
8812                 this._offset = newPos.subtract(this._startPos);
8813                 this._startTime = +new Date();
8814
8815                 this.fire('start');
8816
8817                 this._animate();
8818         },
8819
8820         stop: function () {
8821                 if (!this._inProgress) { return; }
8822
8823                 this._step();
8824                 this._complete();
8825         },
8826
8827         _animate: function () {
8828                 // animation loop
8829                 this._animId = L.Util.requestAnimFrame(this._animate, this);
8830                 this._step();
8831         },
8832
8833         _step: function () {
8834                 var elapsed = (+new Date()) - this._startTime,
8835                     duration = this._duration * 1000;
8836
8837                 if (elapsed < duration) {
8838                         this._runFrame(this._easeOut(elapsed / duration));
8839                 } else {
8840                         this._runFrame(1);
8841                         this._complete();
8842                 }
8843         },
8844
8845         _runFrame: function (progress) {
8846                 var pos = this._startPos.add(this._offset.multiplyBy(progress));
8847                 L.DomUtil.setPosition(this._el, pos);
8848
8849                 this.fire('step');
8850         },
8851
8852         _complete: function () {
8853                 L.Util.cancelAnimFrame(this._animId);
8854
8855                 this._inProgress = false;
8856                 this.fire('end');
8857         },
8858
8859         _easeOut: function (t) {
8860                 return 1 - Math.pow(1 - t, this._easeOutPower);
8861         }
8862 });
8863
8864
8865 /*
8866  * Extends L.Map to handle zoom animations.
8867  */
8868
8869 L.Map.mergeOptions({
8870         zoomAnimation: true,
8871         zoomAnimationThreshold: 4
8872 });
8873
8874 if (L.DomUtil.TRANSITION) {
8875
8876         L.Map.addInitHook(function () {
8877                 // don't animate on browsers without hardware-accelerated transitions or old Android/Opera
8878                 this._zoomAnimated = this.options.zoomAnimation && L.DomUtil.TRANSITION &&
8879                                 L.Browser.any3d && !L.Browser.android23 && !L.Browser.mobileOpera;
8880
8881                 // zoom transitions run with the same duration for all layers, so if one of transitionend events
8882                 // happens after starting zoom animation (propagating to the map pane), we know that it ended globally
8883                 if (this._zoomAnimated) {
8884                         L.DomEvent.on(this._mapPane, L.DomUtil.TRANSITION_END, this._catchTransitionEnd, this);
8885                 }
8886         });
8887 }
8888
8889 L.Map.include(!L.DomUtil.TRANSITION ? {} : {
8890
8891         _catchTransitionEnd: function (e) {
8892                 if (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) {
8893                         this._onZoomTransitionEnd();
8894                 }
8895         },
8896
8897         _nothingToAnimate: function () {
8898                 return !this._container.getElementsByClassName('leaflet-zoom-animated').length;
8899         },
8900
8901         _tryAnimatedZoom: function (center, zoom, options) {
8902
8903                 if (this._animatingZoom) { return true; }
8904
8905                 options = options || {};
8906
8907                 // don't animate if disabled, not supported or zoom difference is too large
8908                 if (!this._zoomAnimated || options.animate === false || this._nothingToAnimate() ||
8909                         Math.abs(zoom - this._zoom) > this.options.zoomAnimationThreshold) { return false; }
8910
8911                 // offset is the pixel coords of the zoom origin relative to the current center
8912                 var scale = this.getZoomScale(zoom),
8913                     offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale),
8914                         origin = this._getCenterLayerPoint()._add(offset);
8915
8916                 // don't animate if the zoom origin isn't within one screen from the current center, unless forced
8917                 if (options.animate !== true && !this.getSize().contains(offset)) { return false; }
8918
8919                 this
8920                     .fire('movestart')
8921                     .fire('zoomstart');
8922
8923                 this._animateZoom(center, zoom, origin, scale, null, true);
8924
8925                 return true;
8926         },
8927
8928         _animateZoom: function (center, zoom, origin, scale, delta, backwards, forTouchZoom) {
8929
8930                 if (!forTouchZoom) {
8931                         this._animatingZoom = true;
8932                 }
8933
8934                 // put transform transition on all layers with leaflet-zoom-animated class
8935                 L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim');
8936
8937                 // remember what center/zoom to set after animation
8938                 this._animateToCenter = center;
8939                 this._animateToZoom = zoom;
8940
8941                 // disable any dragging during animation
8942                 if (L.Draggable) {
8943                         L.Draggable._disabled = true;
8944                 }
8945
8946                 L.Util.requestAnimFrame(function () {
8947                         this.fire('zoomanim', {
8948                                 center: center,
8949                                 zoom: zoom,
8950                                 origin: origin,
8951                                 scale: scale,
8952                                 delta: delta,
8953                                 backwards: backwards
8954                         });
8955                 }, this);
8956         },
8957
8958         _onZoomTransitionEnd: function () {
8959
8960                 this._animatingZoom = false;
8961
8962                 L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim');
8963
8964                 this._resetView(this._animateToCenter, this._animateToZoom, true, true);
8965
8966                 if (L.Draggable) {
8967                         L.Draggable._disabled = false;
8968                 }
8969         }
8970 });
8971
8972
8973 /*
8974         Zoom animation logic for L.TileLayer.
8975 */
8976
8977 L.TileLayer.include({
8978         _animateZoom: function (e) {
8979                 if (!this._animating) {
8980                         this._animating = true;
8981                         this._prepareBgBuffer();
8982                 }
8983
8984                 var bg = this._bgBuffer,
8985                     transform = L.DomUtil.TRANSFORM,
8986                     initialTransform = e.delta ? L.DomUtil.getTranslateString(e.delta) : bg.style[transform],
8987                     scaleStr = L.DomUtil.getScaleString(e.scale, e.origin);
8988
8989                 bg.style[transform] = e.backwards ?
8990                                 scaleStr + ' ' + initialTransform :
8991                                 initialTransform + ' ' + scaleStr;
8992         },
8993
8994         _endZoomAnim: function () {
8995                 var front = this._tileContainer,
8996                     bg = this._bgBuffer;
8997
8998                 front.style.visibility = '';
8999                 front.parentNode.appendChild(front); // Bring to fore
9000
9001                 // force reflow
9002                 L.Util.falseFn(bg.offsetWidth);
9003
9004                 this._animating = false;
9005         },
9006
9007         _clearBgBuffer: function () {
9008                 var map = this._map;
9009
9010                 if (map && !map._animatingZoom && !map.touchZoom._zooming) {
9011                         this._bgBuffer.innerHTML = '';
9012                         this._bgBuffer.style[L.DomUtil.TRANSFORM] = '';
9013                 }
9014         },
9015
9016         _prepareBgBuffer: function () {
9017
9018                 var front = this._tileContainer,
9019                     bg = this._bgBuffer;
9020
9021                 // if foreground layer doesn't have many tiles but bg layer does,
9022                 // keep the existing bg layer and just zoom it some more
9023
9024                 var bgLoaded = this._getLoadedTilesPercentage(bg),
9025                     frontLoaded = this._getLoadedTilesPercentage(front);
9026
9027                 if (bg && bgLoaded > 0.5 && frontLoaded < 0.5) {
9028
9029                         front.style.visibility = 'hidden';
9030                         this._stopLoadingImages(front);
9031                         return;
9032                 }
9033
9034                 // prepare the buffer to become the front tile pane
9035                 bg.style.visibility = 'hidden';
9036                 bg.style[L.DomUtil.TRANSFORM] = '';
9037
9038                 // switch out the current layer to be the new bg layer (and vice-versa)
9039                 this._tileContainer = bg;
9040                 bg = this._bgBuffer = front;
9041
9042                 this._stopLoadingImages(bg);
9043
9044                 //prevent bg buffer from clearing right after zoom
9045                 clearTimeout(this._clearBgBufferTimer);
9046         },
9047
9048         _getLoadedTilesPercentage: function (container) {
9049                 var tiles = container.getElementsByTagName('img'),
9050                     i, len, count = 0;
9051
9052                 for (i = 0, len = tiles.length; i < len; i++) {
9053                         if (tiles[i].complete) {
9054                                 count++;
9055                         }
9056                 }
9057                 return count / len;
9058         },
9059
9060         // stops loading all tiles in the background layer
9061         _stopLoadingImages: function (container) {
9062                 var tiles = Array.prototype.slice.call(container.getElementsByTagName('img')),
9063                     i, len, tile;
9064
9065                 for (i = 0, len = tiles.length; i < len; i++) {
9066                         tile = tiles[i];
9067
9068                         if (!tile.complete) {
9069                                 tile.onload = L.Util.falseFn;
9070                                 tile.onerror = L.Util.falseFn;
9071                                 tile.src = L.Util.emptyImageUrl;
9072
9073                                 tile.parentNode.removeChild(tile);
9074                         }
9075                 }
9076         }
9077 });
9078
9079
9080 /*
9081  * Provides L.Map with convenient shortcuts for using browser geolocation features.
9082  */
9083
9084 L.Map.include({
9085         _defaultLocateOptions: {
9086                 watch: false,
9087                 setView: false,
9088                 maxZoom: Infinity,
9089                 timeout: 10000,
9090                 maximumAge: 0,
9091                 enableHighAccuracy: false
9092         },
9093
9094         locate: function (/*Object*/ options) {
9095
9096                 options = this._locateOptions = L.extend(this._defaultLocateOptions, options);
9097
9098                 if (!navigator.geolocation) {
9099                         this._handleGeolocationError({
9100                                 code: 0,
9101                                 message: 'Geolocation not supported.'
9102                         });
9103                         return this;
9104                 }
9105
9106                 var onResponse = L.bind(this._handleGeolocationResponse, this),
9107                         onError = L.bind(this._handleGeolocationError, this);
9108
9109                 if (options.watch) {
9110                         this._locationWatchId =
9111                                 navigator.geolocation.watchPosition(onResponse, onError, options);
9112                 } else {
9113                         navigator.geolocation.getCurrentPosition(onResponse, onError, options);
9114                 }
9115                 return this;
9116         },
9117
9118         stopLocate: function () {
9119                 if (navigator.geolocation) {
9120                         navigator.geolocation.clearWatch(this._locationWatchId);
9121                 }
9122                 if (this._locateOptions) {
9123                         this._locateOptions.setView = false;
9124                 }
9125                 return this;
9126         },
9127
9128         _handleGeolocationError: function (error) {
9129                 var c = error.code,
9130                     message = error.message ||
9131                             (c === 1 ? 'permission denied' :
9132                             (c === 2 ? 'position unavailable' : 'timeout'));
9133
9134                 if (this._locateOptions.setView && !this._loaded) {
9135                         this.fitWorld();
9136                 }
9137
9138                 this.fire('locationerror', {
9139                         code: c,
9140                         message: 'Geolocation error: ' + message + '.'
9141                 });
9142         },
9143
9144         _handleGeolocationResponse: function (pos) {
9145                 var lat = pos.coords.latitude,
9146                     lng = pos.coords.longitude,
9147                     latlng = new L.LatLng(lat, lng),
9148
9149                     latAccuracy = 180 * pos.coords.accuracy / 40075017,
9150                     lngAccuracy = latAccuracy / Math.cos(L.LatLng.DEG_TO_RAD * lat),
9151
9152                     bounds = L.latLngBounds(
9153                             [lat - latAccuracy, lng - lngAccuracy],
9154                             [lat + latAccuracy, lng + lngAccuracy]),
9155
9156                     options = this._locateOptions;
9157
9158                 if (options.setView) {
9159                         var zoom = Math.min(this.getBoundsZoom(bounds), options.maxZoom);
9160                         this.setView(latlng, zoom);
9161                 }
9162
9163                 var data = {
9164                         latlng: latlng,
9165                         bounds: bounds,
9166                         timestamp: pos.timestamp
9167                 };
9168
9169                 for (var i in pos.coords) {
9170                         if (typeof pos.coords[i] === 'number') {
9171                                 data[i] = pos.coords[i];
9172                         }
9173                 }
9174
9175                 this.fire('locationfound', data);
9176         }
9177 });
9178
9179
9180 }(window, document));