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- Committer: bdaum
- Date: 2015-12-26 10:21:51 UTC
- Revision ID: berthold.daum@bdaum.de-20151226102151-44f1j5113167thb9
Version 2.4.0
- com.bdaum.zoom.dcraw/bin/com
- com.bdaum.zoom.dcraw/bin/com/bdaum
- com.bdaum.zoom.dcraw/bin/com/bdaum/zoom
- com.bdaum.zoom.dcraw/bin/com/bdaum/zoom/dcraw
- com.bdaum.zoom.dcraw/bin/com/bdaum/zoom/dcraw/internal
- com.bdaum.zoom.gps.leaflet
- com.bdaum.zoom.gps.leaflet/.settings
- com.bdaum.zoom.gps.leaflet/META-INF
- com.bdaum.zoom.gps.leaflet/OSGI-INF
- com.bdaum.zoom.gps.leaflet/OSGI-INF/l10n
- com.bdaum.zoom.gps.leaflet/gmap
- com.bdaum.zoom.gps.leaflet/gmap/images
- com.bdaum.zoom.gps.leaflet/html
- com.bdaum.zoom.gps.leaflet/nl
- com.bdaum.zoom.gps.leaflet/nl/de
- com.bdaum.zoom.gps.leaflet/nl/de/html
- com.bdaum.zoom.gps.leaflet/src
- com.bdaum.zoom.gps.leaflet/src/com
- com.bdaum.zoom.gps.leaflet/src/com/bdaum
- com.bdaum.zoom.gps.leaflet/src/com/bdaum/zoom
- com.bdaum.zoom.gps.leaflet/src/com/bdaum/zoom/gps
- com.bdaum.zoom.gps.leaflet/src/com/bdaum/zoom/gps/leaflet
- com.bdaum.zoom.gps.leaflet/src/com/bdaum/zoom/gps/leaflet/internal
- com.bdaum.zoom.gps.leaflet/src/com/bdaum/zoom/gps/leaflet/internal/views
- com.bdaum.zoom.gps/OSGI-INF
- files removed:
- com.bdaum.zoom.gps/gmap/addloc.htm
- com.bdaum.zoom.gps/nl/de/gmap
- files modified:
- com.bdaum.zoom.batch.unix/META-INF/MANIFEST.MF
added
removed
com.bdaum.zoom.gps.leaflet/gmap/leaflet-src.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 = '×';
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));
b'\\ No newline at end of file'
Loggerhead is a web-based interface for Breezy
Version: 2.0.1