<!DOCTYPE html>
<html>
<head>
<title>Leaflet.draw vector editing handlers</title>
<script src="leaflet-src.js"></script>
<link rel="stylesheet" href="leaflet.css" />
<script src="leaflet.draw-src.js"></script>
<link rel="stylesheet" href="leaflet.draw.css" />
</head>
<body>
<div id="map" style="width: 800px; height: 600px; border: 1px solid #ccc"></div>
<script src="script.js"></script>
</body>
</html>
var osmUrl = 'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
osmAttrib = '© <a href="http://openstreetmap.org/copyright">OpenStreetMap</a> contributors',
osm = L.tileLayer(osmUrl, {maxZoom: 18, attribution: osmAttrib});
map = new L.Map('map', {layers: [osm], center: new L.LatLng(51.505, -0.04), zoom: 13}),
drawnItems = L.featureGroup().addTo(map);
map.addControl(new L.Control.Draw({
edit: { featureGroup: drawnItems }
}));
map.on('draw:created', function(event) {
var layer = event.layer;
drawnItems.addLayer(layer);
});
/* Styles go here */
/* required styles */
.leaflet-map-pane,
.leaflet-tile,
.leaflet-marker-icon,
.leaflet-marker-shadow,
.leaflet-tile-pane,
.leaflet-tile-container,
.leaflet-overlay-pane,
.leaflet-shadow-pane,
.leaflet-marker-pane,
.leaflet-popup-pane,
.leaflet-overlay-pane svg,
.leaflet-zoom-box,
.leaflet-image-layer,
.leaflet-layer {
position: absolute;
left: 0;
top: 0;
}
.leaflet-container {
overflow: hidden;
-ms-touch-action: none;
}
.leaflet-tile,
.leaflet-marker-icon,
.leaflet-marker-shadow {
-webkit-user-select: none;
-moz-user-select: none;
user-select: none;
-webkit-user-drag: none;
}
.leaflet-marker-icon,
.leaflet-marker-shadow {
display: block;
}
/* map is broken in FF if you have max-width: 100% on tiles */
.leaflet-container img {
max-width: none !important;
}
/* stupid Android 2 doesn't understand "max-width: none" properly */
.leaflet-container img.leaflet-image-layer {
max-width: 15000px !important;
}
.leaflet-tile {
filter: inherit;
visibility: hidden;
}
.leaflet-tile-loaded {
visibility: inherit;
}
.leaflet-zoom-box {
width: 0;
height: 0;
}
/* workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=888319 */
.leaflet-overlay-pane svg {
-moz-user-select: none;
}
.leaflet-tile-pane { z-index: 2; }
.leaflet-objects-pane { z-index: 3; }
.leaflet-overlay-pane { z-index: 4; }
.leaflet-shadow-pane { z-index: 5; }
.leaflet-marker-pane { z-index: 6; }
.leaflet-popup-pane { z-index: 7; }
.leaflet-vml-shape {
width: 1px;
height: 1px;
}
.lvml {
behavior: url(#default#VML);
display: inline-block;
position: absolute;
}
/* control positioning */
.leaflet-control {
position: relative;
z-index: 7;
pointer-events: auto;
}
.leaflet-top,
.leaflet-bottom {
position: absolute;
z-index: 1000;
pointer-events: none;
}
.leaflet-top {
top: 0;
}
.leaflet-right {
right: 0;
}
.leaflet-bottom {
bottom: 0;
}
.leaflet-left {
left: 0;
}
.leaflet-control {
float: left;
clear: both;
}
.leaflet-right .leaflet-control {
float: right;
}
.leaflet-top .leaflet-control {
margin-top: 10px;
}
.leaflet-bottom .leaflet-control {
margin-bottom: 10px;
}
.leaflet-left .leaflet-control {
margin-left: 10px;
}
.leaflet-right .leaflet-control {
margin-right: 10px;
}
/* zoom and fade animations */
.leaflet-fade-anim .leaflet-tile,
.leaflet-fade-anim .leaflet-popup {
opacity: 0;
-webkit-transition: opacity 0.2s linear;
-moz-transition: opacity 0.2s linear;
-o-transition: opacity 0.2s linear;
transition: opacity 0.2s linear;
}
.leaflet-fade-anim .leaflet-tile-loaded,
.leaflet-fade-anim .leaflet-map-pane .leaflet-popup {
opacity: 1;
}
.leaflet-zoom-anim .leaflet-zoom-animated {
-webkit-transition: -webkit-transform 0.25s cubic-bezier(0,0,0.25,1);
-moz-transition: -moz-transform 0.25s cubic-bezier(0,0,0.25,1);
-o-transition: -o-transform 0.25s cubic-bezier(0,0,0.25,1);
transition: transform 0.25s cubic-bezier(0,0,0.25,1);
}
.leaflet-zoom-anim .leaflet-tile,
.leaflet-pan-anim .leaflet-tile,
.leaflet-touching .leaflet-zoom-animated {
-webkit-transition: none;
-moz-transition: none;
-o-transition: none;
transition: none;
}
.leaflet-zoom-anim .leaflet-zoom-hide {
visibility: hidden;
}
/* cursors */
.leaflet-clickable {
cursor: pointer;
}
.leaflet-container {
cursor: -webkit-grab;
cursor: -moz-grab;
}
.leaflet-popup-pane,
.leaflet-control {
cursor: auto;
}
.leaflet-dragging .leaflet-container,
.leaflet-dragging .leaflet-clickable {
cursor: move;
cursor: -webkit-grabbing;
cursor: -moz-grabbing;
}
/* visual tweaks */
.leaflet-container {
background: #ddd;
outline: 0;
}
.leaflet-container a {
color: #0078A8;
}
.leaflet-container a.leaflet-active {
outline: 2px solid orange;
}
.leaflet-zoom-box {
border: 2px dotted #38f;
background: rgba(255,255,255,0.5);
}
/* general typography */
.leaflet-container {
font: 12px/1.5 "Helvetica Neue", Arial, Helvetica, sans-serif;
}
/* general toolbar styles */
.leaflet-bar {
box-shadow: 0 1px 5px rgba(0,0,0,0.65);
border-radius: 4px;
}
.leaflet-bar a,
.leaflet-bar a:hover {
background-color: #fff;
border-bottom: 1px solid #ccc;
width: 26px;
height: 26px;
line-height: 26px;
display: block;
text-align: center;
text-decoration: none;
color: black;
}
.leaflet-bar a,
.leaflet-control-layers-toggle {
background-position: 50% 50%;
background-repeat: no-repeat;
display: block;
}
.leaflet-bar a:hover {
background-color: #f4f4f4;
}
.leaflet-bar a:first-child {
border-top-left-radius: 4px;
border-top-right-radius: 4px;
}
.leaflet-bar a:last-child {
border-bottom-left-radius: 4px;
border-bottom-right-radius: 4px;
border-bottom: none;
}
.leaflet-bar a.leaflet-disabled {
cursor: default;
background-color: #f4f4f4;
color: #bbb;
}
.leaflet-touch .leaflet-bar a {
width: 30px;
height: 30px;
line-height: 30px;
}
/* zoom control */
.leaflet-control-zoom-in,
.leaflet-control-zoom-out {
font: bold 18px 'Lucida Console', Monaco, monospace;
text-indent: 1px;
}
.leaflet-control-zoom-out {
font-size: 20px;
}
.leaflet-touch .leaflet-control-zoom-in {
font-size: 22px;
}
.leaflet-touch .leaflet-control-zoom-out {
font-size: 24px;
}
/* layers control */
.leaflet-control-layers {
box-shadow: 0 1px 5px rgba(0,0,0,0.4);
background: #fff;
border-radius: 5px;
}
.leaflet-control-layers-toggle {
background-image: url(images/layers.png);
width: 36px;
height: 36px;
}
.leaflet-retina .leaflet-control-layers-toggle {
background-image: url(images/layers-2x.png);
background-size: 26px 26px;
}
.leaflet-touch .leaflet-control-layers-toggle {
width: 44px;
height: 44px;
}
.leaflet-control-layers .leaflet-control-layers-list,
.leaflet-control-layers-expanded .leaflet-control-layers-toggle {
display: none;
}
.leaflet-control-layers-expanded .leaflet-control-layers-list {
display: block;
position: relative;
}
.leaflet-control-layers-expanded {
padding: 6px 10px 6px 6px;
color: #333;
background: #fff;
}
.leaflet-control-layers-selector {
margin-top: 2px;
position: relative;
top: 1px;
}
.leaflet-control-layers label {
display: block;
}
.leaflet-control-layers-separator {
height: 0;
border-top: 1px solid #ddd;
margin: 5px -10px 5px -6px;
}
/* attribution and scale controls */
.leaflet-container .leaflet-control-attribution {
background: #fff;
background: rgba(255, 255, 255, 0.7);
margin: 0;
}
.leaflet-control-attribution,
.leaflet-control-scale-line {
padding: 0 5px;
color: #333;
}
.leaflet-control-attribution a {
text-decoration: none;
}
.leaflet-control-attribution a:hover {
text-decoration: underline;
}
.leaflet-container .leaflet-control-attribution,
.leaflet-container .leaflet-control-scale {
font-size: 11px;
}
.leaflet-left .leaflet-control-scale {
margin-left: 5px;
}
.leaflet-bottom .leaflet-control-scale {
margin-bottom: 5px;
}
.leaflet-control-scale-line {
border: 2px solid #777;
border-top: none;
line-height: 1.1;
padding: 2px 5px 1px;
font-size: 11px;
white-space: nowrap;
overflow: hidden;
-moz-box-sizing: content-box;
box-sizing: content-box;
background: #fff;
background: rgba(255, 255, 255, 0.5);
}
.leaflet-control-scale-line:not(:first-child) {
border-top: 2px solid #777;
border-bottom: none;
margin-top: -2px;
}
.leaflet-control-scale-line:not(:first-child):not(:last-child) {
border-bottom: 2px solid #777;
}
.leaflet-touch .leaflet-control-attribution,
.leaflet-touch .leaflet-control-layers,
.leaflet-touch .leaflet-bar {
box-shadow: none;
}
.leaflet-touch .leaflet-control-layers,
.leaflet-touch .leaflet-bar {
border: 2px solid rgba(0,0,0,0.2);
background-clip: padding-box;
}
/* popup */
.leaflet-popup {
position: absolute;
text-align: center;
}
.leaflet-popup-content-wrapper {
padding: 1px;
text-align: left;
border-radius: 12px;
}
.leaflet-popup-content {
margin: 13px 19px;
line-height: 1.4;
}
.leaflet-popup-content p {
margin: 18px 0;
}
.leaflet-popup-tip-container {
margin: 0 auto;
width: 40px;
height: 20px;
position: relative;
overflow: hidden;
}
.leaflet-popup-tip {
width: 17px;
height: 17px;
padding: 1px;
margin: -10px auto 0;
-webkit-transform: rotate(45deg);
-moz-transform: rotate(45deg);
-ms-transform: rotate(45deg);
-o-transform: rotate(45deg);
transform: rotate(45deg);
}
.leaflet-popup-content-wrapper,
.leaflet-popup-tip {
background: white;
box-shadow: 0 3px 14px rgba(0,0,0,0.4);
}
.leaflet-container a.leaflet-popup-close-button {
position: absolute;
top: 0;
right: 0;
padding: 4px 4px 0 0;
text-align: center;
width: 18px;
height: 14px;
font: 16px/14px Tahoma, Verdana, sans-serif;
color: #c3c3c3;
text-decoration: none;
font-weight: bold;
background: transparent;
}
.leaflet-container a.leaflet-popup-close-button:hover {
color: #999;
}
.leaflet-popup-scrolled {
overflow: auto;
border-bottom: 1px solid #ddd;
border-top: 1px solid #ddd;
}
.leaflet-oldie .leaflet-popup-content-wrapper {
zoom: 1;
}
.leaflet-oldie .leaflet-popup-tip {
width: 24px;
margin: 0 auto;
-ms-filter: "progid:DXImageTransform.Microsoft.Matrix(M11=0.70710678, M12=0.70710678, M21=-0.70710678, M22=0.70710678)";
filter: progid:DXImageTransform.Microsoft.Matrix(M11=0.70710678, M12=0.70710678, M21=-0.70710678, M22=0.70710678);
}
.leaflet-oldie .leaflet-popup-tip-container {
margin-top: -1px;
}
.leaflet-oldie .leaflet-control-zoom,
.leaflet-oldie .leaflet-control-layers,
.leaflet-oldie .leaflet-popup-content-wrapper,
.leaflet-oldie .leaflet-popup-tip {
border: 1px solid #999;
}
/* div icon */
.leaflet-div-icon {
background: #fff;
border: 1px solid #666;
}
/*
Leaflet 0.8-dev (f75133a), a JS library for interactive maps. http://leafletjs.com
(c) 2010-2014 Vladimir Agafonkin, (c) 2010-2011 CloudMade
*/
(function (window, document, undefined) {
var L = {
version: '0.8-dev'
};
function expose() {
var oldL = window.L;
L.noConflict = function () {
window.L = oldL;
return this;
};
window.L = L;
}
// define Leaflet for Node module pattern loaders, including Browserify
if (typeof module === 'object' && typeof module.exports === 'object') {
module.exports = L;
// define Leaflet as an AMD module
} else if (typeof define === 'function' && define.amd) {
define(L);
}
// define Leaflet as a global L variable, saving the original L to restore later if needed
if (typeof window !== 'undefined') {
expose();
}
/*
* L.Util contains various utility functions used throughout Leaflet code.
*/
L.Util = {
// extend an object with properties of one or more other objects
extend: function (dest) {
var i, j, len, src;
for (j = 1, len = arguments.length; j < len; j++) {
src = arguments[j];
for (i in src) {
dest[i] = src[i];
}
}
return dest;
},
// create an object from a given prototype
create: Object.create || (function () {
function F() {}
return function (proto) {
F.prototype = proto;
return new F();
};
})(),
// bind a function to be called with a given context
bind: function (fn, obj) {
var slice = Array.prototype.slice;
if (fn.bind) {
return fn.bind.apply(fn, slice.call(arguments, 1));
}
var args = slice.call(arguments, 2);
return function () {
return fn.apply(obj, args.length ? args.concat(slice.call(arguments)) : arguments);
};
},
// return unique ID of an object
stamp: function (obj) {
// jshint camelcase: false
obj._leaflet_id = obj._leaflet_id || ++L.Util.lastId;
return obj._leaflet_id;
},
lastId: 0,
// return a function that won't be called more often than the given interval
throttle: function (fn, time, context) {
var lock, args, wrapperFn, later;
later = function () {
// reset lock and call if queued
lock = false;
if (args) {
wrapperFn.apply(context, args);
args = false;
}
};
wrapperFn = function () {
if (lock) {
// called too soon, queue to call later
args = arguments;
} else {
// call and lock until later
fn.apply(context, arguments);
setTimeout(later, time);
lock = true;
}
};
return wrapperFn;
},
// wrap the given number to lie within a certain range (used for wrapping longitude)
wrapNum: function (x, range, includeMax) {
var max = range[1],
min = range[0],
d = max - min;
return x === max && includeMax ? x : ((x - min) % d + d) % d + min;
},
// do nothing (used as a noop throughout the code)
falseFn: function () { return false; },
// round a given number to a given precision
formatNum: function (num, digits) {
var pow = Math.pow(10, digits || 5);
return Math.round(num * pow) / pow;
},
// trim whitespace from both sides of a string
trim: function (str) {
return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, '');
},
// split a string into words
splitWords: function (str) {
return L.Util.trim(str).split(/\s+/);
},
// set options to an object, inheriting parent's options as well
setOptions: function (obj, options) {
if (!obj.hasOwnProperty('options')) {
obj.options = obj.options ? L.Util.create(obj.options) : {};
}
for (var i in options) {
obj.options[i] = options[i];
}
return obj.options;
},
// make an URL with GET parameters out of a set of properties/values
getParamString: function (obj, existingUrl, uppercase) {
var params = [];
for (var i in obj) {
params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i]));
}
return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&');
},
// super-simple templating facility, used for TileLayer URLs
template: function (str, data) {
return str.replace(L.Util.templateRe, function (str, key) {
var value = data[key];
if (value === undefined) {
throw new Error('No value provided for variable ' + str);
} else if (typeof value === 'function') {
value = value(data);
}
return value;
});
},
templateRe: /\{ *([\w_]+) *\}/g,
isArray: Array.isArray || function (obj) {
return (Object.prototype.toString.call(obj) === '[object Array]');
},
// minimal image URI, set to an image when disposing to flush memory
emptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='
};
(function () {
// inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/
function getPrefixed(name) {
return window['webkit' + name] || window['moz' + name] || window['ms' + name];
}
var lastTime = 0;
// fallback for IE 7-8
function timeoutDefer(fn) {
var time = +new Date(),
timeToCall = Math.max(0, 16 - (time - lastTime));
lastTime = time + timeToCall;
return window.setTimeout(fn, timeToCall);
}
var requestFn = window.requestAnimationFrame || getPrefixed('RequestAnimationFrame') || timeoutDefer,
cancelFn = window.cancelAnimationFrame || getPrefixed('CancelAnimationFrame') ||
getPrefixed('CancelRequestAnimationFrame') || function (id) { window.clearTimeout(id); };
L.Util.requestAnimFrame = function (fn, context, immediate) {
if (immediate && requestFn === timeoutDefer) {
fn.call(context);
} else {
return requestFn.call(window, L.bind(fn, context));
}
};
L.Util.cancelAnimFrame = function (id) {
if (id) {
cancelFn.call(window, id);
}
};
})();
// shortcuts for most used utility functions
L.extend = L.Util.extend;
L.bind = L.Util.bind;
L.stamp = L.Util.stamp;
L.setOptions = L.Util.setOptions;
/*
* L.Class powers the OOP facilities of the library.
* Thanks to John Resig and Dean Edwards for inspiration!
*/
L.Class = function () {};
L.Class.extend = function (props) {
// extended class with the new prototype
var NewClass = function () {
// call the constructor
if (this.initialize) {
this.initialize.apply(this, arguments);
}
// call all constructor hooks
if (this._initHooks.length) {
this.callInitHooks();
}
};
// jshint camelcase: false
var parentProto = NewClass.__super__ = this.prototype;
var proto = L.Util.create(parentProto);
proto.constructor = NewClass;
NewClass.prototype = proto;
//inherit parent's statics
for (var i in this) {
if (this.hasOwnProperty(i) && i !== 'prototype') {
NewClass[i] = this[i];
}
}
// mix static properties into the class
if (props.statics) {
L.extend(NewClass, props.statics);
delete props.statics;
}
// mix includes into the prototype
if (props.includes) {
L.Util.extend.apply(null, [proto].concat(props.includes));
delete props.includes;
}
// merge options
if (proto.options) {
props.options = L.Util.extend(L.Util.create(proto.options), props.options);
}
// mix given properties into the prototype
L.extend(proto, props);
proto._initHooks = [];
// add method for calling all hooks
proto.callInitHooks = function () {
if (this._initHooksCalled) { return; }
if (parentProto.callInitHooks) {
parentProto.callInitHooks.call(this);
}
this._initHooksCalled = true;
for (var i = 0, len = proto._initHooks.length; i < len; i++) {
proto._initHooks[i].call(this);
}
};
return NewClass;
};
// method for adding properties to prototype
L.Class.include = function (props) {
L.extend(this.prototype, props);
};
// merge new default options to the Class
L.Class.mergeOptions = function (options) {
L.extend(this.prototype.options, options);
};
// add a constructor hook
L.Class.addInitHook = function (fn) { // (Function) || (String, args...)
var args = Array.prototype.slice.call(arguments, 1);
var init = typeof fn === 'function' ? fn : function () {
this[fn].apply(this, args);
};
this.prototype._initHooks = this.prototype._initHooks || [];
this.prototype._initHooks.push(init);
};
/*
* L.Evented is a base class that Leaflet classes inherit from to handle custom events.
*/
L.Evented = L.Class.extend({
on: function (types, fn, context) {
// types can be a map of types/handlers
if (typeof types === 'object') {
for (var type in types) {
// we don't process space-separated events here for performance;
// it's a hot path since Layer uses the on(obj) syntax
this._on(type, types[type], fn);
}
} else {
// types can be a string of space-separated words
types = L.Util.splitWords(types);
for (var i = 0, len = types.length; i < len; i++) {
this._on(types[i], fn, context);
}
}
return this;
},
off: function (types, fn, context) {
if (!types) {
// clear all listeners if called without arguments
delete this._events;
} else if (typeof types === 'object') {
for (var type in types) {
this._off(type, types[type], fn);
}
} else {
types = L.Util.splitWords(types);
for (var i = 0, len = types.length; i < len; i++) {
this._off(types[i], fn, context);
}
}
return this;
},
// attach listener (without syntactic sugar now)
_on: function (type, fn, context) {
var events = this._events = this._events || {},
contextId = context && context !== this && L.stamp(context);
if (contextId) {
// store listeners with custom context in a separate hash (if it has an id);
// gives a major performance boost when firing and removing events (e.g. on map object)
var indexKey = type + '_idx',
indexLenKey = type + '_len',
typeIndex = events[indexKey] = events[indexKey] || {},
id = L.stamp(fn) + '_' + contextId;
if (!typeIndex[id]) {
typeIndex[id] = {fn: fn, ctx: context};
// keep track of the number of keys in the index to quickly check if it's empty
events[indexLenKey] = (events[indexLenKey] || 0) + 1;
}
} else {
// individual layers mostly use "this" for context and don't fire listeners too often
// so simple array makes the memory footprint better while not degrading performance
events[type] = events[type] || [];
events[type].push({fn: fn});
}
},
_off: function (type, fn, context) {
var events = this._events,
indexKey = type + '_idx',
indexLenKey = type + '_len';
if (!events) { return; }
if (!fn) {
// clear all listeners for a type if function isn't specified
delete events[type];
delete events[indexKey];
delete events[indexLenKey];
return;
}
var contextId = context && context !== this && L.stamp(context),
listeners, i, len, listener, id;
if (contextId) {
id = L.stamp(fn) + '_' + contextId;
listeners = events[indexKey];
if (listeners && listeners[id]) {
listener = listeners[id];
delete listeners[id];
events[indexLenKey]--;
}
} else {
listeners = events[type];
if (listeners) {
for (i = 0, len = listeners.length; i < len; i++) {
if (listeners[i].fn === fn) {
listener = listeners[i];
listeners.splice(i, 1);
break;
}
}
}
}
// set the removed listener to noop so that's not called if remove happens in fire
if (listener) {
listener.fn = L.Util.falseFn;
}
},
fire: function (type, data, propagate) {
if (!this.listens(type, propagate)) { return this; }
var event = L.Util.extend({}, data, {type: type, target: this}),
events = this._events;
if (events) {
var typeIndex = events[type + '_idx'],
i, len, listeners, id;
if (events[type]) {
// make sure adding/removing listeners inside other listeners won't cause infinite loop
listeners = events[type].slice();
for (i = 0, len = listeners.length; i < len; i++) {
listeners[i].fn.call(this, event);
}
}
// fire event for the context-indexed listeners as well
for (id in typeIndex) {
typeIndex[id].fn.call(typeIndex[id].ctx, event);
}
}
if (propagate) {
// propagate the event to parents (set with addEventParent)
this._propagateEvent(event);
}
return this;
},
listens: function (type, propagate) {
var events = this._events;
if (events && (events[type] || events[type + '_len'])) { return true; }
if (propagate) {
// also check parents for listeners if event propagates
for (var id in this._eventParents) {
if (this._eventParents[id].listens(type, propagate)) { return true; }
}
}
return false;
},
once: function (types, fn, context) {
if (typeof types === 'object') {
for (var type in types) {
this.once(type, types[type], fn);
}
return this;
}
var handler = L.bind(function () {
this
.off(types, fn, context)
.off(types, handler, context);
}, this);
// add a listener that's executed once and removed after that
return this
.on(types, fn, context)
.on(types, handler, context);
},
// adds a parent to propagate events to (when you fire with true as a 3rd argument)
addEventParent: function (obj) {
this._eventParents = this._eventParents || {};
this._eventParents[L.stamp(obj)] = obj;
return this;
},
removeEventParent: function (obj) {
if (this._eventParents) {
delete this._eventParents[L.stamp(obj)];
}
return this;
},
_propagateEvent: function (e) {
for (var id in this._eventParents) {
this._eventParents[id].fire(e.type, L.extend({layer: e.target}, e), true);
}
}
});
var proto = L.Evented.prototype;
// aliases; we should ditch those eventually
proto.addEventListener = proto.on;
proto.removeEventListener = proto.clearAllEventListeners = proto.off;
proto.addOneTimeEventListener = proto.once;
proto.fireEvent = proto.fire;
proto.hasEventListeners = proto.listens;
L.Mixin = {Events: proto};
/*
* L.Browser handles different browser and feature detections for internal Leaflet use.
*/
(function () {
var ua = navigator.userAgent.toLowerCase(),
doc = document.documentElement,
ie = 'ActiveXObject' in window,
webkit = ua.indexOf('webkit') !== -1,
phantomjs = ua.indexOf('phantom') !== -1,
android23 = ua.search('android [23]') !== -1,
chrome = ua.indexOf('chrome') !== -1,
mobile = typeof orientation !== 'undefined',
msPointer = navigator.msPointerEnabled && navigator.msMaxTouchPoints && !window.PointerEvent,
pointer = (window.PointerEvent && navigator.pointerEnabled && navigator.maxTouchPoints) || msPointer,
ie3d = ie && ('transition' in doc.style),
webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23,
gecko3d = 'MozPerspective' in doc.style,
opera3d = 'OTransition' in doc.style;
var retina = 'devicePixelRatio' in window && window.devicePixelRatio > 1;
if (!retina && 'matchMedia' in window) {
var matches = window.matchMedia('(min-resolution:144dpi)');
retina = matches && matches.matches;
}
var touch = !window.L_NO_TOUCH && !phantomjs && (pointer || 'ontouchstart' in window ||
(window.DocumentTouch && document instanceof window.DocumentTouch));
L.Browser = {
ie: ie,
ielt9: ie && !document.addEventListener,
webkit: webkit,
gecko: (ua.indexOf('gecko') !== -1) && !webkit && !window.opera && !ie,
android: ua.indexOf('android') !== -1,
android23: android23,
chrome: chrome,
safari: !chrome && ua.indexOf('safari') !== -1,
ie3d: ie3d,
webkit3d: webkit3d,
gecko3d: gecko3d,
opera3d: opera3d,
any3d: !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d || opera3d) && !phantomjs,
mobile: mobile,
mobileWebkit: mobile && webkit,
mobileWebkit3d: mobile && webkit3d,
mobileOpera: mobile && window.opera,
touch: !!touch,
msPointer: !!msPointer,
pointer: !!pointer,
retina: !!retina
};
}());
/*
* L.Point represents a point with x and y coordinates.
*/
L.Point = function (/*Number*/ x, /*Number*/ y, /*Boolean*/ round) {
this.x = (round ? Math.round(x) : x);
this.y = (round ? Math.round(y) : y);
};
L.Point.prototype = {
clone: function () {
return new L.Point(this.x, this.y);
},
// non-destructive, returns a new point
add: function (point) {
return this.clone()._add(L.point(point));
},
// destructive, used directly for performance in situations where it's safe to modify existing point
_add: function (point) {
this.x += point.x;
this.y += point.y;
return this;
},
subtract: function (point) {
return this.clone()._subtract(L.point(point));
},
_subtract: function (point) {
this.x -= point.x;
this.y -= point.y;
return this;
},
divideBy: function (num) {
return this.clone()._divideBy(num);
},
_divideBy: function (num) {
this.x /= num;
this.y /= num;
return this;
},
multiplyBy: function (num) {
return this.clone()._multiplyBy(num);
},
_multiplyBy: function (num) {
this.x *= num;
this.y *= num;
return this;
},
round: function () {
return this.clone()._round();
},
_round: function () {
this.x = Math.round(this.x);
this.y = Math.round(this.y);
return this;
},
floor: function () {
return this.clone()._floor();
},
_floor: function () {
this.x = Math.floor(this.x);
this.y = Math.floor(this.y);
return this;
},
ceil: function () {
return this.clone()._ceil();
},
_ceil: function () {
this.x = Math.ceil(this.x);
this.y = Math.ceil(this.y);
return this;
},
distanceTo: function (point) {
point = L.point(point);
var x = point.x - this.x,
y = point.y - this.y;
return Math.sqrt(x * x + y * y);
},
equals: function (point) {
point = L.point(point);
return point.x === this.x &&
point.y === this.y;
},
contains: function (point) {
point = L.point(point);
return Math.abs(point.x) <= Math.abs(this.x) &&
Math.abs(point.y) <= Math.abs(this.y);
},
toString: function () {
return 'Point(' +
L.Util.formatNum(this.x) + ', ' +
L.Util.formatNum(this.y) + ')';
}
};
L.point = function (x, y, round) {
if (x instanceof L.Point) {
return x;
}
if (L.Util.isArray(x)) {
return new L.Point(x[0], x[1]);
}
if (x === undefined || x === null) {
return x;
}
return new L.Point(x, y, round);
};
/*
* L.Bounds represents a rectangular area on the screen in pixel coordinates.
*/
L.Bounds = function (a, b) { //(Point, Point) or Point[]
if (!a) { return; }
var points = b ? [a, b] : a;
for (var i = 0, len = points.length; i < len; i++) {
this.extend(points[i]);
}
};
L.Bounds.prototype = {
// extend the bounds to contain the given point
extend: function (point) { // (Point)
point = L.point(point);
if (!this.min && !this.max) {
this.min = point.clone();
this.max = point.clone();
} else {
this.min.x = Math.min(point.x, this.min.x);
this.max.x = Math.max(point.x, this.max.x);
this.min.y = Math.min(point.y, this.min.y);
this.max.y = Math.max(point.y, this.max.y);
}
return this;
},
getCenter: function (round) { // (Boolean) -> Point
return new L.Point(
(this.min.x + this.max.x) / 2,
(this.min.y + this.max.y) / 2, round);
},
getBottomLeft: function () { // -> Point
return new L.Point(this.min.x, this.max.y);
},
getTopRight: function () { // -> Point
return new L.Point(this.max.x, this.min.y);
},
getSize: function () {
return this.max.subtract(this.min);
},
contains: function (obj) { // (Bounds) or (Point) -> Boolean
var min, max;
if (typeof obj[0] === 'number' || obj instanceof L.Point) {
obj = L.point(obj);
} else {
obj = L.bounds(obj);
}
if (obj instanceof L.Bounds) {
min = obj.min;
max = obj.max;
} else {
min = max = obj;
}
return (min.x >= this.min.x) &&
(max.x <= this.max.x) &&
(min.y >= this.min.y) &&
(max.y <= this.max.y);
},
intersects: function (bounds) { // (Bounds) -> Boolean
bounds = L.bounds(bounds);
var min = this.min,
max = this.max,
min2 = bounds.min,
max2 = bounds.max,
xIntersects = (max2.x >= min.x) && (min2.x <= max.x),
yIntersects = (max2.y >= min.y) && (min2.y <= max.y);
return xIntersects && yIntersects;
},
isValid: function () {
return !!(this.min && this.max);
}
};
L.bounds = function (a, b) { // (Bounds) or (Point, Point) or (Point[])
if (!a || a instanceof L.Bounds) {
return a;
}
return new L.Bounds(a, b);
};
/*
* L.Transformation is an utility class to perform simple point transformations through a 2d-matrix.
*/
L.Transformation = function (a, b, c, d) {
this._a = a;
this._b = b;
this._c = c;
this._d = d;
};
L.Transformation.prototype = {
transform: function (point, scale) { // (Point, Number) -> Point
return this._transform(point.clone(), scale);
},
// destructive transform (faster)
_transform: function (point, scale) {
scale = scale || 1;
point.x = scale * (this._a * point.x + this._b);
point.y = scale * (this._c * point.y + this._d);
return point;
},
untransform: function (point, scale) {
scale = scale || 1;
return new L.Point(
(point.x / scale - this._b) / this._a,
(point.y / scale - this._d) / this._c);
}
};
/*
* L.DomUtil contains various utility functions for working with DOM.
*/
L.DomUtil = {
get: function (id) {
return typeof id === 'string' ? document.getElementById(id) : id;
},
getStyle: function (el, style) {
var value = el.style[style] || (el.currentStyle && el.currentStyle[style]);
if ((!value || value === 'auto') && document.defaultView) {
var css = document.defaultView.getComputedStyle(el, null);
value = css ? css[style] : null;
}
return value === 'auto' ? null : value;
},
create: function (tagName, className, container) {
var el = document.createElement(tagName);
el.className = className;
if (container) {
container.appendChild(el);
}
return el;
},
remove: function (el) {
var parent = el.parentNode;
if (parent) {
parent.removeChild(el);
}
},
empty: function (el) {
while (el.firstChild) {
el.removeChild(el.firstChild);
}
},
toFront: function (el) {
el.parentNode.appendChild(el);
},
toBack: function (el) {
var parent = el.parentNode;
parent.insertBefore(el, parent.firstChild);
},
hasClass: function (el, name) {
if (el.classList !== undefined) {
return el.classList.contains(name);
}
var className = L.DomUtil.getClass(el);
return className.length > 0 && new RegExp('(^|\\s)' + name + '(\\s|$)').test(className);
},
addClass: function (el, name) {
if (el.classList !== undefined) {
var classes = L.Util.splitWords(name);
for (var i = 0, len = classes.length; i < len; i++) {
el.classList.add(classes[i]);
}
} else if (!L.DomUtil.hasClass(el, name)) {
var className = L.DomUtil.getClass(el);
L.DomUtil.setClass(el, (className ? className + ' ' : '') + name);
}
},
removeClass: function (el, name) {
if (el.classList !== undefined) {
el.classList.remove(name);
} else {
L.DomUtil.setClass(el, L.Util.trim((' ' + L.DomUtil.getClass(el) + ' ').replace(' ' + name + ' ', ' ')));
}
},
setClass: function (el, name) {
if (el.className.baseVal === undefined) {
el.className = name;
} else {
// in case of SVG element
el.className.baseVal = name;
}
},
getClass: function (el) {
return el.className.baseVal === undefined ? el.className : el.className.baseVal;
},
setOpacity: function (el, value) {
if ('opacity' in el.style) {
el.style.opacity = value;
} else if ('filter' in el.style) {
var filter = false,
filterName = 'DXImageTransform.Microsoft.Alpha';
// filters collection throws an error if we try to retrieve a filter that doesn't exist
try {
filter = el.filters.item(filterName);
} catch (e) {
// don't set opacity to 1 if we haven't already set an opacity,
// it isn't needed and breaks transparent pngs.
if (value === 1) { return; }
}
value = Math.round(value * 100);
if (filter) {
filter.Enabled = (value !== 100);
filter.Opacity = value;
} else {
el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')';
}
}
},
testProp: function (props) {
var style = document.documentElement.style;
for (var i = 0; i < props.length; i++) {
if (props[i] in style) {
return props[i];
}
}
return false;
},
setTransform: function (el, offset, scale) {
var pos = offset || new L.Point(0, 0);
el.style[L.DomUtil.TRANSFORM] =
'translate3d(' + pos.x + 'px,' + pos.y + 'px' + ',0)' + (scale ? ' scale(' + scale + ')' : '');
},
setPosition: function (el, point, no3d) { // (HTMLElement, Point[, Boolean])
// jshint camelcase: false
el._leaflet_pos = point;
if (L.Browser.any3d && !no3d) {
L.DomUtil.setTransform(el, point);
} else {
el.style.left = point.x + 'px';
el.style.top = point.y + 'px';
}
},
getPosition: function (el) {
// this method is only used for elements previously positioned using setPosition,
// so it's safe to cache the position for performance
// jshint camelcase: false
return el._leaflet_pos;
}
};
(function () {
// prefix style property names
L.DomUtil.TRANSFORM = L.DomUtil.testProp(
['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']);
// webkitTransition comes first because some browser versions that drop vendor prefix don't do
// the same for the transitionend event, in particular the Android 4.1 stock browser
var transition = L.DomUtil.TRANSITION = L.DomUtil.testProp(
['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']);
L.DomUtil.TRANSITION_END =
transition === 'webkitTransition' || transition === 'OTransition' ? transition + 'End' : 'transitionend';
if ('onselectstart' in document) {
L.DomUtil.disableTextSelection = function () {
L.DomEvent.on(window, 'selectstart', L.DomEvent.preventDefault);
};
L.DomUtil.enableTextSelection = function () {
L.DomEvent.off(window, 'selectstart', L.DomEvent.preventDefault);
};
} else {
var userSelectProperty = L.DomUtil.testProp(
['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']);
L.DomUtil.disableTextSelection = function () {
if (userSelectProperty) {
var style = document.documentElement.style;
this._userSelect = style[userSelectProperty];
style[userSelectProperty] = 'none';
}
};
L.DomUtil.enableTextSelection = function () {
if (userSelectProperty) {
document.documentElement.style[userSelectProperty] = this._userSelect;
delete this._userSelect;
}
};
}
L.DomUtil.disableImageDrag = function () {
L.DomEvent.on(window, 'dragstart', L.DomEvent.preventDefault);
};
L.DomUtil.enableImageDrag = function () {
L.DomEvent.off(window, 'dragstart', L.DomEvent.preventDefault);
};
})();
/*
* L.LatLng represents a geographical point with latitude and longitude coordinates.
*/
L.LatLng = function (lat, lng, alt) {
if (isNaN(lat) || isNaN(lng)) {
throw new Error('Invalid LatLng object: (' + lat + ', ' + lng + ')');
}
this.lat = +lat;
this.lng = +lng;
if (alt !== undefined) {
this.alt = +alt;
}
};
L.LatLng.prototype = {
equals: function (obj, maxMargin) {
if (!obj) { return false; }
obj = L.latLng(obj);
var margin = Math.max(
Math.abs(this.lat - obj.lat),
Math.abs(this.lng - obj.lng));
return margin <= (maxMargin === undefined ? 1.0E-9 : maxMargin);
},
toString: function (precision) {
return 'LatLng(' +
L.Util.formatNum(this.lat, precision) + ', ' +
L.Util.formatNum(this.lng, precision) + ')';
},
distanceTo: function (other) {
return L.CRS.Earth.distance(this, L.latLng(other));
},
wrap: function () {
return L.CRS.Earth.wrapLatLng(this);
}
};
// constructs LatLng with different signatures
// (LatLng) or ([Number, Number]) or (Number, Number) or (Object)
L.latLng = function (a, b) {
if (a instanceof L.LatLng) {
return a;
}
if (L.Util.isArray(a) && typeof a[0] !== 'object') {
if (a.length === 3) {
return new L.LatLng(a[0], a[1], a[2]);
}
return new L.LatLng(a[0], a[1]);
}
if (a === undefined || a === null) {
return a;
}
if (typeof a === 'object' && 'lat' in a) {
return new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon);
}
if (b === undefined) {
return null;
}
return new L.LatLng(a, b);
};
/*
* L.LatLngBounds represents a rectangular area on the map in geographical coordinates.
*/
L.LatLngBounds = function (southWest, northEast) { // (LatLng, LatLng) or (LatLng[])
if (!southWest) { return; }
var latlngs = northEast ? [southWest, northEast] : southWest;
for (var i = 0, len = latlngs.length; i < len; i++) {
this.extend(latlngs[i]);
}
};
L.LatLngBounds.prototype = {
// extend the bounds to contain the given point or bounds
extend: function (obj) { // (LatLng) or (LatLngBounds)
var sw = this._southWest,
ne = this._northEast,
sw2, ne2;
if (obj instanceof L.LatLng) {
sw2 = obj;
ne2 = obj;
} else if (obj instanceof L.LatLngBounds) {
sw2 = obj._southWest;
ne2 = obj._northEast;
if (!sw2 || !ne2) { return this; }
} else {
return obj ? this.extend(L.latLng(obj) || L.latLngBounds(obj)) : this;
}
if (!sw && !ne) {
this._southWest = new L.LatLng(sw2.lat, sw2.lng);
this._northEast = new L.LatLng(ne2.lat, ne2.lng);
} else {
sw.lat = Math.min(sw2.lat, sw.lat);
sw.lng = Math.min(sw2.lng, sw.lng);
ne.lat = Math.max(ne2.lat, ne.lat);
ne.lng = Math.max(ne2.lng, ne.lng);
}
return this;
},
// extend the bounds by a percentage
pad: function (bufferRatio) { // (Number) -> LatLngBounds
var sw = this._southWest,
ne = this._northEast,
heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio,
widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio;
return new L.LatLngBounds(
new L.LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer),
new L.LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer));
},
getCenter: function () { // -> LatLng
return new L.LatLng(
(this._southWest.lat + this._northEast.lat) / 2,
(this._southWest.lng + this._northEast.lng) / 2);
},
getSouthWest: function () {
return this._southWest;
},
getNorthEast: function () {
return this._northEast;
},
getNorthWest: function () {
return new L.LatLng(this.getNorth(), this.getWest());
},
getSouthEast: function () {
return new L.LatLng(this.getSouth(), this.getEast());
},
getWest: function () {
return this._southWest.lng;
},
getSouth: function () {
return this._southWest.lat;
},
getEast: function () {
return this._northEast.lng;
},
getNorth: function () {
return this._northEast.lat;
},
contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean
if (typeof obj[0] === 'number' || obj instanceof L.LatLng) {
obj = L.latLng(obj);
} else {
obj = L.latLngBounds(obj);
}
var sw = this._southWest,
ne = this._northEast,
sw2, ne2;
if (obj instanceof L.LatLngBounds) {
sw2 = obj.getSouthWest();
ne2 = obj.getNorthEast();
} else {
sw2 = ne2 = obj;
}
return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) &&
(sw2.lng >= sw.lng) && (ne2.lng <= ne.lng);
},
intersects: function (bounds) { // (LatLngBounds)
bounds = L.latLngBounds(bounds);
var sw = this._southWest,
ne = this._northEast,
sw2 = bounds.getSouthWest(),
ne2 = bounds.getNorthEast(),
latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat),
lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng);
return latIntersects && lngIntersects;
},
toBBoxString: function () {
return [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(',');
},
equals: function (bounds) { // (LatLngBounds)
if (!bounds) { return false; }
bounds = L.latLngBounds(bounds);
return this._southWest.equals(bounds.getSouthWest()) &&
this._northEast.equals(bounds.getNorthEast());
},
isValid: function () {
return !!(this._southWest && this._northEast);
}
};
//TODO International date line?
L.latLngBounds = function (a, b) { // (LatLngBounds) or (LatLng, LatLng)
if (!a || a instanceof L.LatLngBounds) {
return a;
}
return new L.LatLngBounds(a, b);
};
/*
* Simple equirectangular (Plate Carree) projection, used by CRS like EPSG:4326 and Simple.
*/
L.Projection = {};
L.Projection.LonLat = {
project: function (latlng) {
return new L.Point(latlng.lng, latlng.lat);
},
unproject: function (point) {
return new L.LatLng(point.y, point.x);
},
bounds: L.bounds([-180, -90], [180, 90])
};
/*
* Spherical Mercator is the most popular map projection, used by EPSG:3857 CRS used by default.
*/
L.Projection.SphericalMercator = {
R: 6378137,
project: function (latlng) {
var d = Math.PI / 180,
max = 1 - 1E-15,
sin = Math.max(Math.min(Math.sin(latlng.lat * d), max), -max);
return new L.Point(
this.R * latlng.lng * d,
this.R * Math.log((1 + sin) / (1 - sin)) / 2);
},
unproject: function (point) {
var d = 180 / Math.PI;
return new L.LatLng(
(2 * Math.atan(Math.exp(point.y / this.R)) - (Math.PI / 2)) * d,
point.x * d / this.R);
},
bounds: (function () {
var d = 6378137 * Math.PI;
return L.bounds([-d, -d], [d, d]);
})()
};
/*
* L.CRS is the base object for all defined CRS (Coordinate Reference Systems) in Leaflet.
*/
L.CRS = {
// converts geo coords to pixel ones
latLngToPoint: function (latlng, zoom) {
var projectedPoint = this.projection.project(latlng),
scale = this.scale(zoom);
return this.transformation._transform(projectedPoint, scale);
},
// converts pixel coords to geo coords
pointToLatLng: function (point, zoom) {
var scale = this.scale(zoom),
untransformedPoint = this.transformation.untransform(point, scale);
return this.projection.unproject(untransformedPoint);
},
// converts geo coords to projection-specific coords (e.g. in meters)
project: function (latlng) {
return this.projection.project(latlng);
},
// converts projected coords to geo coords
unproject: function (point) {
return this.projection.unproject(point);
},
// defines how the world scales with zoom
scale: function (zoom) {
return 256 * Math.pow(2, zoom);
},
// returns the bounds of the world in projected coords if applicable
getProjectedBounds: function (zoom) {
if (this.infinite) { return null; }
var b = this.projection.bounds,
s = this.scale(zoom),
min = this.transformation.transform(b.min, s),
max = this.transformation.transform(b.max, s);
return L.bounds(min, max);
},
// whether a coordinate axis wraps in a given range (e.g. longitude from -180 to 180); depends on CRS
// wrapLng: [min, max],
// wrapLat: [min, max],
// if true, the coordinate space will be unbounded (infinite in all directions)
// infinite: false,
// wraps geo coords in certain ranges if applicable
wrapLatLng: function (latlng) {
var lng = this.wrapLng ? L.Util.wrapNum(latlng.lng, this.wrapLng, true) : latlng.lng,
lat = this.wrapLat ? L.Util.wrapNum(latlng.lat, this.wrapLat, true) : latlng.lat;
return L.latLng(lat, lng);
}
};
/*
* A simple CRS that can be used for flat non-Earth maps like panoramas or game maps.
*/
L.CRS.Simple = L.extend({}, L.CRS, {
projection: L.Projection.LonLat,
transformation: new L.Transformation(1, 0, -1, 0),
scale: function (zoom) {
return Math.pow(2, zoom);
},
distance: function (latlng1, latlng2) {
var dx = latlng2.lng - latlng1.lng,
dy = latlng2.lat - latlng1.lat;
return Math.sqrt(dx * dx + dy * dy);
},
infinite: true
});
/*
* L.CRS.Earth is the base class for all CRS representing Earth.
*/
L.CRS.Earth = L.extend({}, L.CRS, {
wrapLng: [-180, 180],
R: 6378137,
// distane between two geographical points using spherical law of cosines approximation
distance: function (latlng1, latlng2) {
var rad = Math.PI / 180,
lat1 = latlng1.lat * rad,
lat2 = latlng2.lat * rad,
a = Math.sin(lat1) * Math.sin(lat2) +
Math.cos(lat1) * Math.cos(lat2) * Math.cos((latlng2.lng - latlng1.lng) * rad);
return this.R * Math.acos(Math.min(a, 1));
}
});
/*
* L.CRS.EPSG3857 (Spherical Mercator) is the most common CRS for web mapping and is used by Leaflet by default.
*/
L.CRS.EPSG3857 = L.extend({}, L.CRS.Earth, {
code: 'EPSG:3857',
projection: L.Projection.SphericalMercator,
transformation: (function () {
var scale = 0.5 / (Math.PI * L.Projection.SphericalMercator.R);
return new L.Transformation(scale, 0.5, -scale, 0.5);
}())
});
L.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, {
code: 'EPSG:900913'
});
/*
* L.CRS.EPSG4326 is a CRS popular among advanced GIS specialists.
*/
L.CRS.EPSG4326 = L.extend({}, L.CRS.Earth, {
code: 'EPSG:4326',
projection: L.Projection.LonLat,
transformation: new L.Transformation(1 / 180, 1, -1 / 180, 0.5)
});
/*
* L.Map is the central class of the API - it is used to create a map.
*/
L.Map = L.Evented.extend({
options: {
crs: L.CRS.EPSG3857,
/*
center: LatLng,
zoom: Number,
layers: Array,
*/
fadeAnimation: true,
trackResize: true,
markerZoomAnimation: true
},
initialize: function (id, options) { // (HTMLElement or String, Object)
options = L.setOptions(this, options);
this._initContainer(id);
this._initLayout();
// hack for https://github.com/Leaflet/Leaflet/issues/1980
this._onResize = L.bind(this._onResize, this);
this._initEvents();
if (options.maxBounds) {
this.setMaxBounds(options.maxBounds);
}
if (options.zoom !== undefined) {
this._zoom = this._limitZoom(options.zoom);
}
if (options.center && options.zoom !== undefined) {
this.setView(L.latLng(options.center), options.zoom, {reset: true});
}
this._handlers = [];
this._layers = {};
this._zoomBoundLayers = {};
this.callInitHooks();
this._addLayers(this.options.layers);
},
// public methods that modify map state
// replaced by animation-powered implementation in Map.PanAnimation.js
setView: function (center, zoom) {
zoom = zoom === undefined ? this.getZoom() : zoom;
this._resetView(L.latLng(center), this._limitZoom(zoom));
return this;
},
setZoom: function (zoom, options) {
if (!this._loaded) {
this._zoom = this._limitZoom(zoom);
return this;
}
return this.setView(this.getCenter(), zoom, {zoom: options});
},
zoomIn: function (delta, options) {
return this.setZoom(this._zoom + (delta || 1), options);
},
zoomOut: function (delta, options) {
return this.setZoom(this._zoom - (delta || 1), options);
},
setZoomAround: function (latlng, zoom, options) {
var scale = this.getZoomScale(zoom),
viewHalf = this.getSize().divideBy(2),
containerPoint = latlng instanceof L.Point ? latlng : this.latLngToContainerPoint(latlng),
centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale),
newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset));
return this.setView(newCenter, zoom, {zoom: options});
},
fitBounds: function (bounds, options) {
options = options || {};
bounds = bounds.getBounds ? bounds.getBounds() : L.latLngBounds(bounds);
var paddingTL = L.point(options.paddingTopLeft || options.padding || [0, 0]),
paddingBR = L.point(options.paddingBottomRight || options.padding || [0, 0]),
zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR));
zoom = options.maxZoom ? Math.min(options.maxZoom, zoom) : zoom;
var paddingOffset = paddingBR.subtract(paddingTL).divideBy(2),
swPoint = this.project(bounds.getSouthWest(), zoom),
nePoint = this.project(bounds.getNorthEast(), zoom),
center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom);
return this.setView(center, zoom, options);
},
fitWorld: function (options) {
return this.fitBounds([[-90, -180], [90, 180]], options);
},
panTo: function (center, options) { // (LatLng)
return this.setView(center, this._zoom, {pan: options});
},
panBy: function (offset) { // (Point)
// replaced with animated panBy in Map.PanAnimation.js
this.fire('movestart');
this._rawPanBy(L.point(offset));
this.fire('move');
return this.fire('moveend');
},
setMaxBounds: function (bounds) {
bounds = L.latLngBounds(bounds);
this.options.maxBounds = bounds;
if (!bounds) {
return this.off('moveend', this._panInsideMaxBounds);
}
if (this._loaded) {
this._panInsideMaxBounds();
}
return this.on('moveend', this._panInsideMaxBounds);
},
panInsideBounds: function (bounds, options) {
var center = this.getCenter(),
newCenter = this._limitCenter(center, this._zoom, bounds);
if (center.equals(newCenter)) { return this; }
return this.panTo(newCenter, options);
},
invalidateSize: function (options) {
if (!this._loaded) { return this; }
options = L.extend({
animate: false,
pan: true
}, options === true ? {animate: true} : options);
var oldSize = this.getSize();
this._sizeChanged = true;
this._initialCenter = null;
var newSize = this.getSize(),
oldCenter = oldSize.divideBy(2).round(),
newCenter = newSize.divideBy(2).round(),
offset = oldCenter.subtract(newCenter);
if (!offset.x && !offset.y) { return this; }
if (options.animate && options.pan) {
this.panBy(offset);
} else {
if (options.pan) {
this._rawPanBy(offset);
}
this.fire('move');
if (options.debounceMoveend) {
clearTimeout(this._sizeTimer);
this._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200);
} else {
this.fire('moveend');
}
}
return this.fire('resize', {
oldSize: oldSize,
newSize: newSize
});
},
stop: function () {
L.Util.cancelAnimFrame(this._flyToFrame);
if (this._panAnim) {
this._panAnim.stop();
}
return this;
},
// TODO handler.addTo
addHandler: function (name, HandlerClass) {
if (!HandlerClass) { return this; }
var handler = this[name] = new HandlerClass(this);
this._handlers.push(handler);
if (this.options[name]) {
handler.enable();
}
return this;
},
remove: function () {
this._initEvents('off');
try {
// throws error in IE6-8
delete this._container._leaflet;
} catch (e) {
this._container._leaflet = undefined;
}
L.DomUtil.remove(this._mapPane);
if (this._clearControlPos) {
this._clearControlPos();
}
this._clearHandlers();
if (this._loaded) {
this.fire('unload');
}
return this;
},
createPane: function (name, container) {
var className = 'leaflet-pane' + (name ? ' leaflet-' + name.replace('Pane', '') + '-pane' : ''),
pane = L.DomUtil.create('div', className, container || this._mapPane);
if (name) {
this._panes[name] = pane;
}
return pane;
},
// public methods for getting map state
getCenter: function () { // (Boolean) -> LatLng
this._checkIfLoaded();
if (this._initialCenter && !this._moved()) {
return this._initialCenter;
}
return this.layerPointToLatLng(this._getCenterLayerPoint());
},
getZoom: function () {
return this._zoom;
},
getBounds: function () {
var bounds = this.getPixelBounds(),
sw = this.unproject(bounds.getBottomLeft()),
ne = this.unproject(bounds.getTopRight());
return new L.LatLngBounds(sw, ne);
},
getMinZoom: function () {
return this.options.minZoom === undefined ? this._layersMinZoom || 0 : this.options.minZoom;
},
getMaxZoom: function () {
return this.options.maxZoom === undefined ?
(this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) :
this.options.maxZoom;
},
getBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number
bounds = L.latLngBounds(bounds);
var zoom = this.getMinZoom() - (inside ? 1 : 0),
maxZoom = this.getMaxZoom(),
size = this.getSize(),
nw = bounds.getNorthWest(),
se = bounds.getSouthEast(),
zoomNotFound = true,
boundsSize;
padding = L.point(padding || [0, 0]);
do {
zoom++;
boundsSize = this.project(se, zoom).subtract(this.project(nw, zoom)).add(padding);
zoomNotFound = !inside ? size.contains(boundsSize) : boundsSize.x < size.x || boundsSize.y < size.y;
} while (zoomNotFound && zoom <= maxZoom);
if (zoomNotFound && inside) {
return null;
}
return inside ? zoom : zoom - 1;
},
getSize: function () {
if (!this._size || this._sizeChanged) {
this._size = new L.Point(
this._container.clientWidth,
this._container.clientHeight);
this._sizeChanged = false;
}
return this._size.clone();
},
getPixelBounds: function () {
var topLeftPoint = this._getTopLeftPoint();
return new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize()));
},
getPixelOrigin: function () {
this._checkIfLoaded();
return this._pixelOrigin;
},
getPixelWorldBounds: function (zoom) {
return this.options.crs.getProjectedBounds(zoom === undefined ? this.getZoom() : zoom);
},
getPane: function (pane) {
return typeof pane === 'string' ? this._panes[pane] : pane;
},
getPanes: function () {
return this._panes;
},
getContainer: function () {
return this._container;
},
// TODO replace with universal implementation after refactoring projections
getZoomScale: function (toZoom, fromZoom) {
var crs = this.options.crs;
fromZoom = fromZoom === undefined ? this._zoom : fromZoom;
return crs.scale(toZoom) / crs.scale(fromZoom);
},
getScaleZoom: function (scale, fromZoom) {
fromZoom = fromZoom === undefined ? this._zoom : fromZoom;
return fromZoom + (Math.log(scale) / Math.LN2);
},
// conversion methods
project: function (latlng, zoom) { // (LatLng[, Number]) -> Point
zoom = zoom === undefined ? this._zoom : zoom;
return this.options.crs.latLngToPoint(L.latLng(latlng), zoom);
},
unproject: function (point, zoom) { // (Point[, Number]) -> LatLng
zoom = zoom === undefined ? this._zoom : zoom;
return this.options.crs.pointToLatLng(L.point(point), zoom);
},
layerPointToLatLng: function (point) { // (Point)
var projectedPoint = L.point(point).add(this.getPixelOrigin());
return this.unproject(projectedPoint);
},
latLngToLayerPoint: function (latlng) { // (LatLng)
var projectedPoint = this.project(L.latLng(latlng))._round();
return projectedPoint._subtract(this.getPixelOrigin());
},
wrapLatLng: function (latlng) {
return this.options.crs.wrapLatLng(L.latLng(latlng));
},
distance: function (latlng1, latlng2) {
return this.options.crs.distance(L.latLng(latlng1), L.latLng(latlng2));
},
containerPointToLayerPoint: function (point) { // (Point)
return L.point(point).subtract(this._getMapPanePos());
},
layerPointToContainerPoint: function (point) { // (Point)
return L.point(point).add(this._getMapPanePos());
},
containerPointToLatLng: function (point) {
var layerPoint = this.containerPointToLayerPoint(L.point(point));
return this.layerPointToLatLng(layerPoint);
},
latLngToContainerPoint: function (latlng) {
return this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng)));
},
mouseEventToContainerPoint: function (e) { // (MouseEvent)
return L.DomEvent.getMousePosition(e, this._container);
},
mouseEventToLayerPoint: function (e) { // (MouseEvent)
return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e));
},
mouseEventToLatLng: function (e) { // (MouseEvent)
return this.layerPointToLatLng(this.mouseEventToLayerPoint(e));
},
// map initialization methods
_initContainer: function (id) {
var container = this._container = L.DomUtil.get(id);
if (!container) {
throw new Error('Map container not found.');
} else if (container._leaflet) {
throw new Error('Map container is already initialized.');
}
container._leaflet = true;
},
_initLayout: function () {
var container = this._container;
this._fadeAnimated = this.options.fadeAnimation && L.Browser.any3d;
L.DomUtil.addClass(container, 'leaflet-container' +
(L.Browser.touch ? ' leaflet-touch' : '') +
(L.Browser.retina ? ' leaflet-retina' : '') +
(L.Browser.ielt9 ? ' leaflet-oldie' : '') +
(L.Browser.safari ? ' leaflet-safari' : '') +
(this._fadeAnimated ? ' leaflet-fade-anim' : ''));
var position = L.DomUtil.getStyle(container, 'position');
if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') {
container.style.position = 'relative';
}
this._initPanes();
if (this._initControlPos) {
this._initControlPos();
}
},
_initPanes: function () {
var panes = this._panes = {};
this._mapPane = this.createPane('mapPane', this._container);
this.createPane('tilePane');
this.createPane('shadowPane');
this.createPane('overlayPane');
this.createPane('markerPane');
this.createPane('popupPane');
if (!this.options.markerZoomAnimation) {
L.DomUtil.addClass(panes.markerPane, 'leaflet-zoom-hide');
L.DomUtil.addClass(panes.shadowPane, 'leaflet-zoom-hide');
}
},
// private methods that modify map state
_resetView: function (center, zoom, preserveMapOffset, afterZoomAnim) {
var zoomChanged = (this._zoom !== zoom);
if (!afterZoomAnim) {
this.fire('movestart');
if (zoomChanged) {
this.fire('zoomstart');
}
}
this._zoom = zoom;
this._initialCenter = center;
if (!preserveMapOffset) {
L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));
}
this._pixelOrigin = this._getNewPixelOrigin(center);
var loading = !this._loaded;
this._loaded = true;
this.fire('viewreset', {hard: !preserveMapOffset});
if (loading) {
this.fire('load');
}
this.fire('move');
if (zoomChanged || afterZoomAnim) {
this.fire('zoomend');
}
this.fire('moveend', {hard: !preserveMapOffset});
},
_rawPanBy: function (offset) {
L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset));
},
_getZoomSpan: function () {
return this.getMaxZoom() - this.getMinZoom();
},
_panInsideMaxBounds: function () {
this.panInsideBounds(this.options.maxBounds);
},
_checkIfLoaded: function () {
if (!this._loaded) {
throw new Error('Set map center and zoom first.');
}
},
// map events
_initEvents: function (onOff) {
if (!L.DomEvent) { return; }
onOff = onOff || 'on';
L.DomEvent[onOff](this._container,
'click dblclick mousedown mouseup mouseenter mouseleave mousemove contextmenu',
this._handleMouseEvent, this);
if (this.options.trackResize) {
L.DomEvent[onOff](window, 'resize', this._onResize, this);
}
},
_onResize: function () {
L.Util.cancelAnimFrame(this._resizeRequest);
this._resizeRequest = L.Util.requestAnimFrame(
function () { this.invalidateSize({debounceMoveend: true}); }, this, false, this._container);
},
_handleMouseEvent: function (e) {
if (!this._loaded) { return; }
this._fireMouseEvent(this, e,
e.type === 'mouseenter' ? 'mouseover' :
e.type === 'mouseleave' ? 'mouseout' : e.type);
},
_fireMouseEvent: function (obj, e, type, propagate, latlng) {
type = type || e.type;
if (L.DomEvent._skipped(e)) { return; }
if (type === 'click') {
var draggableObj = obj.options.draggable === true ? obj : this;
if (!e._simulated && ((draggableObj.dragging && draggableObj.dragging.moved()) ||
(this.boxZoom && this.boxZoom.moved()))) { return; }
obj.fire('preclick');
}
if (!obj.listens(type, propagate)) { return; }
if (type === 'contextmenu') {
L.DomEvent.preventDefault(e);
}
if (type === 'click' || type === 'dblclick' || type === 'contextmenu') {
L.DomEvent.stopPropagation(e);
}
var data = {
originalEvent: e,
containerPoint: this.mouseEventToContainerPoint(e)
};
data.layerPoint = this.containerPointToLayerPoint(data.containerPoint);
data.latlng = latlng || this.layerPointToLatLng(data.layerPoint);
obj.fire(type, data, propagate);
},
_clearHandlers: function () {
for (var i = 0, len = this._handlers.length; i < len; i++) {
this._handlers[i].disable();
}
},
whenReady: function (callback, context) {
if (this._loaded) {
callback.call(context || this, {target: this});
} else {
this.on('load', callback, context);
}
return this;
},
// private methods for getting map state
_getMapPanePos: function () {
return L.DomUtil.getPosition(this._mapPane) || new L.Point(0, 0);
},
_moved: function () {
var pos = this._getMapPanePos();
return pos && !pos.equals([0, 0]);
},
_getTopLeftPoint: function () {
return this.getPixelOrigin().subtract(this._getMapPanePos());
},
_getNewPixelOrigin: function (center, zoom) {
var viewHalf = this.getSize()._divideBy(2);
// TODO round on display, not calculation to increase precision?
return this.project(center, zoom)._subtract(viewHalf)._add(this._getMapPanePos())._round();
},
_latLngToNewLayerPoint: function (latlng, zoom, center) {
var topLeft = this._getNewPixelOrigin(center, zoom);
return this.project(latlng, zoom)._subtract(topLeft);
},
// layer point of the current center
_getCenterLayerPoint: function () {
return this.containerPointToLayerPoint(this.getSize()._divideBy(2));
},
// offset of the specified place to the current center in pixels
_getCenterOffset: function (latlng) {
return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint());
},
// adjust center for view to get inside bounds
_limitCenter: function (center, zoom, bounds) {
if (!bounds) { return center; }
var centerPoint = this.project(center, zoom),
viewHalf = this.getSize().divideBy(2),
viewBounds = new L.Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)),
offset = this._getBoundsOffset(viewBounds, bounds, zoom);
return this.unproject(centerPoint.add(offset), zoom);
},
// adjust offset for view to get inside bounds
_limitOffset: function (offset, bounds) {
if (!bounds) { return offset; }
var viewBounds = this.getPixelBounds(),
newBounds = new L.Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset));
return offset.add(this._getBoundsOffset(newBounds, bounds));
},
// returns offset needed for pxBounds to get inside maxBounds at a specified zoom
_getBoundsOffset: function (pxBounds, maxBounds, zoom) {
var nwOffset = this.project(maxBounds.getNorthWest(), zoom).subtract(pxBounds.min),
seOffset = this.project(maxBounds.getSouthEast(), zoom).subtract(pxBounds.max),
dx = this._rebound(nwOffset.x, -seOffset.x),
dy = this._rebound(nwOffset.y, -seOffset.y);
return new L.Point(dx, dy);
},
_rebound: function (left, right) {
return left + right > 0 ?
Math.round(left - right) / 2 :
Math.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right));
},
_limitZoom: function (zoom) {
var min = this.getMinZoom(),
max = this.getMaxZoom();
return Math.max(min, Math.min(max, zoom));
}
});
L.map = function (id, options) {
return new L.Map(id, options);
};
L.Layer = L.Evented.extend({
options: {
pane: 'overlayPane'
},
addTo: function (map) {
map.addLayer(this);
return this;
},
remove: function () {
return this.removeFrom(this._map || this._mapToAdd);
},
removeFrom: function (obj) {
if (obj) {
obj.removeLayer(this);
}
return this;
},
getPane: function (name) {
return this._map.getPane(name ? (this.options[name] || name) : this.options.pane);
},
_layerAdd: function (e) {
var map = e.target;
// check in case layer gets added and then removed before the map is ready
if (!map.hasLayer(this)) { return; }
this._map = map;
this._zoomAnimated = map._zoomAnimated;
this.onAdd(map);
if (this.getAttribution && this._map.attributionControl) {
this._map.attributionControl.addAttribution(this.getAttribution());
}
if (this.getEvents) {
map.on(this.getEvents(), this);
}
this.fire('add');
map.fire('layeradd', {layer: this});
}
});
L.Map.include({
addLayer: function (layer) {
var id = L.stamp(layer);
if (this._layers[id]) { return layer; }
this._layers[id] = layer;
layer._mapToAdd = this;
if (layer.beforeAdd) {
layer.beforeAdd(this);
}
this.whenReady(layer._layerAdd, layer);
return this;
},
removeLayer: function (layer) {
var id = L.stamp(layer);
if (!this._layers[id]) { return this; }
if (this._loaded) {
layer.onRemove(this);
}
if (layer.getAttribution && this.attributionControl) {
this.attributionControl.removeAttribution(layer.getAttribution());
}
if (layer.getEvents) {
this.off(layer.getEvents(), layer);
}
delete this._layers[id];
if (this._loaded) {
this.fire('layerremove', {layer: layer});
layer.fire('remove');
}
layer._map = layer._mapToAdd = null;
return this;
},
hasLayer: function (layer) {
return !!layer && (L.stamp(layer) in this._layers);
},
eachLayer: function (method, context) {
for (var i in this._layers) {
method.call(context, this._layers[i]);
}
return this;
},
_addLayers: function (layers) {
layers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : [];
for (var i = 0, len = layers.length; i < len; i++) {
this.addLayer(layers[i]);
}
},
_addZoomLimit: function (layer) {
if (isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom)) {
this._zoomBoundLayers[L.stamp(layer)] = layer;
this._updateZoomLevels();
}
},
_removeZoomLimit: function (layer) {
var id = L.stamp(layer);
if (this._zoomBoundLayers[id]) {
delete this._zoomBoundLayers[id];
this._updateZoomLevels();
}
},
_updateZoomLevels: function () {
var minZoom = Infinity,
maxZoom = -Infinity,
oldZoomSpan = this._getZoomSpan();
for (var i in this._zoomBoundLayers) {
var options = this._zoomBoundLayers[i].options;
minZoom = options.minZoom === undefined ? minZoom : Math.min(minZoom, options.minZoom);
maxZoom = options.maxZoom === undefined ? maxZoom : Math.max(maxZoom, options.maxZoom);
}
this._layersMaxZoom = maxZoom === -Infinity ? undefined : maxZoom;
this._layersMinZoom = minZoom === Infinity ? undefined : minZoom;
if (oldZoomSpan !== this._getZoomSpan()) {
this.fire('zoomlevelschange');
}
}
});
/*
* Mercator projection that takes into account that the Earth is not a perfect sphere.
* Less popular than spherical mercator; used by projections like EPSG:3395.
*/
L.Projection.Mercator = {
R: 6378137,
R_MINOR: 6356752.314245179,
bounds: L.bounds([-20037508.34279, -15496570.73972], [20037508.34279, 18764656.23138]),
project: function (latlng) {
var d = Math.PI / 180,
r = this.R,
y = latlng.lat * d,
tmp = this.R_MINOR / r,
e = Math.sqrt(1 - tmp * tmp),
con = e * Math.sin(y);
var ts = Math.tan(Math.PI / 4 - y / 2) / Math.pow((1 - con) / (1 + con), e / 2);
y = -r * Math.log(Math.max(ts, 1E-10));
return new L.Point(latlng.lng * d * r, y);
},
unproject: function (point) {
var d = 180 / Math.PI,
r = this.R,
tmp = this.R_MINOR / r,
e = Math.sqrt(1 - tmp * tmp),
ts = Math.exp(-point.y / r),
phi = Math.PI / 2 - 2 * Math.atan(ts);
for (var i = 0, dphi = 0.1, con; i < 15 && Math.abs(dphi) > 1e-7; i++) {
con = e * Math.sin(phi);
con = Math.pow((1 - con) / (1 + con), e / 2);
dphi = Math.PI / 2 - 2 * Math.atan(ts * con) - phi;
phi += dphi;
}
return new L.LatLng(phi * d, point.x * d / r);
}
};
/*
* L.CRS.EPSG3857 (World Mercator) CRS implementation.
*/
L.CRS.EPSG3395 = L.extend({}, L.CRS.Earth, {
code: 'EPSG:3395',
projection: L.Projection.Mercator,
transformation: (function () {
var scale = 0.5 / (Math.PI * L.Projection.Mercator.R);
return new L.Transformation(scale, 0.5, -scale, 0.5);
}())
});
/*
* L.GridLayer is used as base class for grid-like layers like TileLayer.
*/
L.GridLayer = L.Layer.extend({
options: {
pane: 'tilePane',
tileSize: 256,
opacity: 1,
unloadInvisibleTiles: L.Browser.mobile,
updateWhenIdle: L.Browser.mobile,
updateInterval: 200
/*
minZoom: <Number>,
maxZoom: <Number>,
attribution: <String>,
zIndex: <Number>,
bounds: <LatLngBounds>
*/
},
initialize: function (options) {
options = L.setOptions(this, options);
},
onAdd: function () {
this._initContainer();
if (!this.options.updateWhenIdle) {
// update tiles on move, but not more often than once per given interval
this._update = L.Util.throttle(this._update, this.options.updateInterval, this);
}
this._pruneTiles = L.Util.throttle(this._pruneTiles, 200, this);
this._levels = {};
this._tiles = {};
this._loaded = {};
this._tilesToLoad = 0;
this._reset();
this._update();
},
beforeAdd: function (map) {
map._addZoomLimit(this);
},
onRemove: function (map) {
L.DomUtil.remove(this._container);
map._removeZoomLimit(this);
this._container = null;
this._tileZoom = null;
},
bringToFront: function () {
if (this._map) {
L.DomUtil.toFront(this._container);
this._setAutoZIndex(Math.max);
}
return this;
},
bringToBack: function () {
if (this._map) {
L.DomUtil.toBack(this._container);
this._setAutoZIndex(Math.min);
}
return this;
},
getAttribution: function () {
return this.options.attribution;
},
getContainer: function () {
return this._container;
},
setOpacity: function (opacity) {
this.options.opacity = opacity;
if (this._map) {
this._updateOpacity();
}
return this;
},
setZIndex: function (zIndex) {
this.options.zIndex = zIndex;
this._updateZIndex();
return this;
},
redraw: function () {
if (this._map) {
this._removeAllTiles();
this._update();
}
return this;
},
getEvents: function () {
var events = {
viewreset: this._reset,
moveend: this._update
};
if (!this.options.updateWhenIdle) {
events.move = this._update;
}
if (this._zoomAnimated) {
events.zoomanim = this._animateZoom;
}
return events;
},
createTile: function () {
return document.createElement('div');
},
_updateZIndex: function () {
if (this._container && this.options.zIndex !== undefined) {
this._container.style.zIndex = this.options.zIndex;
}
},
_setAutoZIndex: function (compare) {
// go through all other layers of the same pane, set zIndex to max + 1 (front) or min - 1 (back)
var layers = this.getPane().children,
edgeZIndex = -compare(-Infinity, Infinity); // -Infinity for max, Infinity for min
for (var i = 0, len = layers.length, zIndex; i < len; i++) {
zIndex = layers[i].style.zIndex;
if (layers[i] !== this._container && zIndex) {
edgeZIndex = compare(edgeZIndex, +zIndex);
}
}
if (isFinite(edgeZIndex)) {
this.options.zIndex = edgeZIndex + compare(-1, 1);
this._updateZIndex();
}
},
_updateOpacity: function () {
var opacity = this.options.opacity;
if (L.Browser.ielt9) {
// IE doesn't inherit filter opacity properly, so we're forced to set it on tiles
for (var i in this._tiles) {
L.DomUtil.setOpacity(this._tiles[i], opacity);
}
} else {
L.DomUtil.setOpacity(this._container, opacity);
}
},
_initContainer: function () {
if (this._container) { return; }
this._container = L.DomUtil.create('div', 'leaflet-layer');
this._updateZIndex();
if (this.options.opacity < 1) {
this._updateOpacity();
}
this.getPane().appendChild(this._container);
},
_updateLevels: function () {
var zoom = this._tileZoom;
for (var z in this._levels) {
this._levels[z].el.style.zIndex = -Math.abs(zoom - z);
}
var level = this._levels[zoom],
map = this._map;
if (!level) {
level = this._levels[zoom] = {};
level.el = L.DomUtil.create('div', 'leaflet-tile-container leaflet-zoom-animated', this._container);
level.el.style.zIndex = 0;
level.origin = map.project(map.unproject(map.getPixelOrigin()), zoom).round();
level.zoom = zoom;
}
this._level = level;
return level;
},
_pruneTiles: function () {
if (!this._map) { return; }
this._retain = {};
var bounds = this._map.getBounds(),
z = this._tileZoom,
range = this._getTileRange(bounds, z),
i, j, key, found;
for (i = range.min.x; i <= range.max.x; i++) {
for (j = range.min.y; j <= range.max.y; j++) {
key = i + ':' + j + ':' + z;
this._retain[key] = true;
if (!this._loaded[key]) {
found = this._retainParent(i, j, z, z - 5) || this._retainChildren(i, j, z, z + 2);
}
}
}
for (key in this._tiles) {
if (!this._retain[key]) {
if (!this._loaded[key]) {
this._removeTile(key);
this._tilesToLoad--;
} else {
setTimeout(L.bind(this._deferRemove, this, key), 250);
}
}
}
},
_removeAllTiles: function () {
for (var key in this._tiles) {
this._removeTile(key);
}
this._tilesToLoad = 0;
},
_deferRemove: function (key) {
if (!this._retain[key]) {
this._removeTile(key);
}
},
_retainParent: function (x, y, z, minZoom) {
var x2 = Math.floor(x / 2),
y2 = Math.floor(y / 2),
z2 = z - 1;
var key = x2 + ':' + y2 + ':' + z2;
if (this._loaded[key]) {
this._retain[key] = true;
return true;
} else if (z2 > minZoom) {
return this._retainParent(x2, y2, z2, minZoom);
}
return false;
},
_retainChildren: function (x, y, z, maxZoom) {
for (var i = 2 * x; i < 2 * x + 2; i++) {
for (var j = 2 * y; j < 2 * y + 2; j++) {
var key = i + ':' + j + ':' + (z + 1);
if (this._loaded[key]) {
this._retain[key] = true;
} else if (z + 1 < maxZoom) {
this._retainChildren(i, j, z + 1, maxZoom);
}
}
}
},
_reset: function (e) {
var map = this._map,
zoom = map.getZoom(),
tileZoom = Math.round(zoom),
tileZoomChanged = this._tileZoom !== tileZoom;
if (tileZoomChanged || (e && e.hard)) {
if (this._abortLoading) {
this._abortLoading();
}
this._tileZoom = tileZoom;
this._updateLevels();
this._resetGrid();
}
this._setZoomTransforms(map.getCenter(), zoom);
},
_setZoomTransforms: function (center, zoom) {
for (var i in this._levels) {
this._setZoomTransform(this._levels[i], center, zoom);
}
},
_setZoomTransform: function (level, center, zoom) {
var scale = this._map.getZoomScale(zoom, level.zoom),
translate = level.origin.multiplyBy(scale)
.subtract(this._map._getNewPixelOrigin(center, zoom)).round();
L.DomUtil.setTransform(level.el, translate, scale);
},
_resetGrid: function () {
var map = this._map,
crs = map.options.crs,
tileSize = this._tileSize = this._getTileSize(),
tileZoom = this._tileZoom;
var bounds = this._map.getPixelWorldBounds(this._tileZoom);
if (bounds) {
this._globalTileRange = this._pxBoundsToTileRange(bounds);
}
this._wrapX = crs.wrapLng && [
Math.floor(map.project([0, crs.wrapLng[0]], tileZoom).x / tileSize),
Math.ceil(map.project([0, crs.wrapLng[1]], tileZoom).x / tileSize)
];
this._wrapY = crs.wrapLat && [
Math.floor(map.project([crs.wrapLat[0], 0], tileZoom).y / tileSize),
Math.ceil(map.project([crs.wrapLat[1], 0], tileZoom).y / tileSize)
];
},
_getTileSize: function () {
return this.options.tileSize;
},
_update: function () {
if (!this._map) { return; }
// TODO move to reset
// var zoom = this._map.getZoom();
// if (zoom > this.options.maxZoom ||
// zoom < this.options.minZoom) { return; }
var bounds = this._map.getBounds();
if (this.options.unloadInvisibleTiles) {
this._removeOtherTiles(bounds);
}
this._addTiles(bounds);
},
// tile coordinates range for particular geo bounds and zoom
_getTileRange: function (bounds, zoom) {
var pxBounds = new L.Bounds(
this._map.project(bounds.getNorthWest(), zoom),
this._map.project(bounds.getSouthEast(), zoom));
return this._pxBoundsToTileRange(pxBounds);
},
_addTiles: function (bounds) {
var queue = [],
tileRange = this._getTileRange(bounds, this._tileZoom),
center = tileRange.getCenter(),
j, i, coords;
// create a queue of coordinates to load tiles from
for (j = tileRange.min.y; j <= tileRange.max.y; j++) {
for (i = tileRange.min.x; i <= tileRange.max.x; i++) {
coords = new L.Point(i, j);
coords.z = this._tileZoom;
// add tile to queue if it's not in cache or out of bounds
if (!(this._tileCoordsToKey(coords) in this._tiles) && this._isValidTile(coords)) {
queue.push(coords);
}
}
}
// sort tile queue to load tiles in order of their distance to center
queue.sort(function (a, b) {
return a.distanceTo(center) - b.distanceTo(center);
});
var tilesToLoad = queue.length;
if (tilesToLoad === 0) { return; }
// if its the first batch of tiles to load
if (!this._tilesToLoad) {
this.fire('loading');
}
this._tilesToLoad += tilesToLoad;
// create DOM fragment to append tiles in one batch
var fragment = document.createDocumentFragment();
for (i = 0; i < tilesToLoad; i++) {
this._addTile(queue[i], fragment);
}
this._level.el.appendChild(fragment);
this._pruneTiles();
},
_isValidTile: function (coords) {
var crs = this._map.options.crs;
if (!crs.infinite) {
// don't load tile if it's out of bounds and not wrapped
var bounds = this._globalTileRange;
if ((!crs.wrapLng && (coords.x < bounds.min.x || coords.x > bounds.max.x)) ||
(!crs.wrapLat && (coords.y < bounds.min.y || coords.y > bounds.max.y))) { return false; }
}
if (!this.options.bounds) { return true; }
// don't load tile if it doesn't intersect the bounds in options
var tileBounds = this._tileCoordsToBounds(coords);
return L.latLngBounds(this.options.bounds).intersects(tileBounds);
},
_keyToBounds: function (key) {
return this._tileCoordsToBounds(this._keyToTileCoords(key));
},
// converts tile coordinates to its geographical bounds
_tileCoordsToBounds: function (coords) {
var map = this._map,
tileSize = this._getTileSize(),
nwPoint = coords.multiplyBy(tileSize),
sePoint = nwPoint.add([tileSize, tileSize]),
nw = map.wrapLatLng(map.unproject(nwPoint, coords.z)),
se = map.wrapLatLng(map.unproject(sePoint, coords.z));
return new L.LatLngBounds(nw, se);
},
// converts tile coordinates to key for the tile cache
_tileCoordsToKey: function (coords) {
return coords.x + ':' + coords.y + ':' + coords.z;
},
// converts tile cache key to coordinates
_keyToTileCoords: function (key) {
var k = key.split(':'),
coords = new L.Point(+k[0], +k[1]);
coords.z = +k[2];
return coords;
},
// remove any present tiles that are off the specified bounds
_removeOtherTiles: function (bounds) {
for (var key in this._tiles) {
var tileBounds = this._keyToBounds(key);
if (!bounds.intersects(tileBounds)) {
this._removeTile(key);
}
}
},
_removeTile: function (key) {
var tile = this._tiles[key];
if (!tile) { return; }
L.DomUtil.remove(tile);
delete this._tiles[key];
delete this._loaded[key];
this.fire('tileunload', {
tile: tile,
coords: this._keyToTileCoords(key)
});
},
_initTile: function (tile) {
L.DomUtil.addClass(tile, 'leaflet-tile');
tile.style.width = this._tileSize + 'px';
tile.style.height = this._tileSize + 'px';
tile.onselectstart = L.Util.falseFn;
tile.onmousemove = L.Util.falseFn;
// update opacity on tiles in IE7-8 because of filter inheritance problems
if (L.Browser.ielt9 && this.options.opacity < 1) {
L.DomUtil.setOpacity(tile, this.options.opacity);
}
// without this hack, tiles disappear after zoom on Chrome for Android
// https://github.com/Leaflet/Leaflet/issues/2078
if (L.Browser.android && !L.Browser.android23) {
tile.style.WebkitBackfaceVisibility = 'hidden';
}
},
_addTile: function (coords, container) {
var tilePos = this._getTilePos(coords),
key = this._tileCoordsToKey(coords);
var tile = this.createTile(this._wrapCoords(coords), L.bind(this._tileReady, this, coords));
this._initTile(tile);
// if createTile is defined with a second argument ("done" callback),
// we know that tile is async and will be ready later; otherwise
if (this.createTile.length < 2) {
// mark tile as ready, but delay one frame for opacity animation to happen
setTimeout(L.bind(this._tileReady, this, coords, null, tile), 0);
}
// we prefer top/left over translate3d so that we don't create a HW-accelerated layer from each tile
// which is slow, and it also fixes gaps between tiles in Safari
L.DomUtil.setPosition(tile, tilePos, true);
// save tile in cache
this._tiles[key] = tile;
container.appendChild(tile);
this.fire('tileloadstart', {
tile: tile,
coords: coords
});
},
_tileReady: function (coords, err, tile) {
if (err) {
this.fire('tileerror', {
error: err,
tile: tile,
coords: coords
});
}
var key = this._tileCoordsToKey(coords);
if (!this._tiles[key]) { return; }
this._loaded[key] = true;
this._pruneTiles();
L.DomUtil.addClass(tile, 'leaflet-tile-loaded');
this.fire('tileload', {
tile: tile,
coords: coords
});
this._tilesToLoad--;
if (this._tilesToLoad === 0) {
this.fire('load');
}
},
_getTilePos: function (coords) {
return coords.multiplyBy(this._tileSize).subtract(this._level.origin);
},
_wrapCoords: function (coords) {
var newCoords = new L.Point(
this._wrapX ? L.Util.wrapNum(coords.x, this._wrapX) : coords.x,
this._wrapY ? L.Util.wrapNum(coords.y, this._wrapY) : coords.y);
newCoords.z = coords.z;
return newCoords;
},
_pxBoundsToTileRange: function (bounds) {
return new L.Bounds(
bounds.min.divideBy(this._tileSize).floor(),
bounds.max.divideBy(this._tileSize).ceil().subtract([1, 1]));
},
_animateZoom: function (e) {
this._setZoomTransforms(e.center, e.zoom);
}
});
L.gridLayer = function (options) {
return new L.GridLayer(options);
};
/*
* L.TileLayer is used for standard xyz-numbered tile layers.
*/
L.TileLayer = L.GridLayer.extend({
options: {
minZoom: 0,
maxZoom: 18,
subdomains: 'abc',
// errorTileUrl: '',
zoomOffset: 0
/*
maxNativeZoom: <Number>,
tms: <Boolean>,
zoomReverse: <Number>,
detectRetina: <Boolean>,
crossOrigin: <Boolean>,
*/
},
initialize: function (url, options) {
this._url = url;
options = L.setOptions(this, options);
// detecting retina displays, adjusting tileSize and zoom levels
if (options.detectRetina && L.Browser.retina && options.maxZoom > 0) {
options.tileSize = Math.floor(options.tileSize / 2);
options.zoomOffset++;
options.minZoom = Math.max(0, options.minZoom);
options.maxZoom--;
}
if (typeof options.subdomains === 'string') {
options.subdomains = options.subdomains.split('');
}
// for https://github.com/Leaflet/Leaflet/issues/137
if (!L.Browser.android) {
this.on('tileunload', this._onTileRemove);
}
},
setUrl: function (url, noRedraw) {
this._url = url;
if (!noRedraw) {
this.redraw();
}
return this;
},
createTile: function (coords, done) {
var tile = document.createElement('img');
tile.onload = L.bind(this._tileOnLoad, this, done, tile);
tile.onerror = L.bind(this._tileOnError, this, done, tile);
if (this.options.crossOrigin) {
tile.crossOrigin = '';
}
/*
Alt tag is set to empty string to keep screen readers from reading URL and for compliance reasons
http://www.w3.org/TR/WCAG20-TECHS/H67
*/
tile.alt = '';
tile.src = this.getTileUrl(coords);
return tile;
},
getTileUrl: function (coords) {
return L.Util.template(this._url, L.extend({
r: this.options.detectRetina && L.Browser.retina && this.options.maxZoom > 0 ? '@2x' : '',
s: this._getSubdomain(coords),
x: coords.x,
y: this.options.tms ? this._tileNumBounds.max.y - coords.y : coords.y,
z: this._getZoomForUrl()
}, this.options));
},
_tileOnLoad: function (done, tile) {
done(null, tile);
},
_tileOnError: function (done, tile, e) {
var errorUrl = this.options.errorTileUrl;
if (errorUrl) {
tile.src = errorUrl;
}
done(e, tile);
},
_getTileSize: function () {
var map = this._map,
options = this.options,
zoom = map.getZoom() + options.zoomOffset,
zoomN = options.maxNativeZoom;
// increase tile size when overscaling
return zoomN && zoom > zoomN ?
Math.round(map.getZoomScale(zoomN, zoom) * options.tileSize) :
options.tileSize;
},
_onTileRemove: function (e) {
e.tile.onload = null;
e.tile.src = L.Util.emptyImageUrl;
},
_getZoomForUrl: function () {
var options = this.options,
zoom = this._tileZoom;
if (options.zoomReverse) {
zoom = options.maxZoom - zoom;
}
zoom += options.zoomOffset;
return options.maxNativeZoom ? Math.min(zoom, options.maxNativeZoom) : zoom;
},
_getSubdomain: function (tilePoint) {
var index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length;
return this.options.subdomains[index];
},
// stops loading all tiles in the background layer
_abortLoading: function () {
var i, tile;
for (i in this._tiles) {
tile = this._tiles[i];
tile.onload = L.Util.falseFn;
tile.onerror = L.Util.falseFn;
if (!tile.complete) {
tile.src = L.Util.emptyImageUrl;
L.DomUtil.remove(tile);
}
}
}
});
L.tileLayer = function (url, options) {
return new L.TileLayer(url, options);
};
/*
* L.TileLayer.WMS is used for WMS tile layers.
*/
L.TileLayer.WMS = L.TileLayer.extend({
defaultWmsParams: {
service: 'WMS',
request: 'GetMap',
version: '1.1.1',
layers: '',
styles: '',
format: 'image/jpeg',
transparent: false
},
initialize: function (url, options) {
this._url = url;
var wmsParams = L.extend({}, this.defaultWmsParams);
// all keys that are not TileLayer options go to WMS params
for (var i in options) {
if (!this.options.hasOwnProperty(i) &&
i !== 'crs' &&
i !== 'uppercase') {
wmsParams[i] = options[i];
}
}
options = L.setOptions(this, options);
wmsParams.width = wmsParams.height =
options.tileSize * (options.detectRetina && L.Browser.retina ? 2 : 1);
this.wmsParams = wmsParams;
},
onAdd: function (map) {
this._crs = this.options.crs || map.options.crs;
this._uppercase = this.options.uppercase || false;
this._wmsVersion = parseFloat(this.wmsParams.version);
var projectionKey = this._wmsVersion >= 1.3 ? 'crs' : 'srs';
this.wmsParams[projectionKey] = this._crs.code;
L.TileLayer.prototype.onAdd.call(this, map);
},
getTileUrl: function (coords) {
var tileBounds = this._tileCoordsToBounds(coords),
nw = this._crs.project(tileBounds.getNorthWest()),
se = this._crs.project(tileBounds.getSouthEast()),
bbox = (this._wmsVersion >= 1.3 && this._crs === L.CRS.EPSG4326 ?
[se.y, nw.x, nw.y, se.x] :
[nw.x, se.y, se.x, nw.y]).join(','),
url = L.TileLayer.prototype.getTileUrl.call(this, coords);
return url +
L.Util.getParamString(this.wmsParams, url, this._uppercase) +
(this._uppercase ? '&BBOX=' : '&bbox=') + bbox;
},
setParams: function (params, noRedraw) {
L.extend(this.wmsParams, params);
if (!noRedraw) {
this.redraw();
}
return this;
}
});
L.tileLayer.wms = function (url, options) {
return new L.TileLayer.WMS(url, options);
};
/*
* L.ImageOverlay is used to overlay images over the map (to specific geographical bounds).
*/
L.ImageOverlay = L.Layer.extend({
options: {
opacity: 1,
alt: ''
},
initialize: function (url, bounds, options) { // (String, LatLngBounds, Object)
this._url = url;
this._bounds = L.latLngBounds(bounds);
L.setOptions(this, options);
},
onAdd: function () {
if (!this._image) {
this._initImage();
if (this.options.opacity < 1) {
this._updateOpacity();
}
}
this.getPane().appendChild(this._image);
this._reset();
},
onRemove: function () {
L.DomUtil.remove(this._image);
},
setOpacity: function (opacity) {
this.options.opacity = opacity;
if (this._image) {
this._updateOpacity();
}
return this;
},
bringToFront: function () {
if (this._map) {
L.DomUtil.toFront(this._image);
}
return this;
},
bringToBack: function () {
if (this._map) {
L.DomUtil.toBack(this._image);
}
return this;
},
setUrl: function (url) {
this._url = url;
if (this._image) {
this._image.src = url;
}
return this;
},
getAttribution: function () {
return this.options.attribution;
},
getEvents: function () {
var events = {
viewreset: this._reset
};
if (this._zoomAnimated) {
events.zoomanim = this._animateZoom;
}
return events;
},
getBounds: function() {
return this._bounds;
},
_initImage: function () {
var img = this._image = L.DomUtil.create('img',
'leaflet-image-layer ' + (this._zoomAnimated ? 'leaflet-zoom-animated' : ''));
img.onselectstart = L.Util.falseFn;
img.onmousemove = L.Util.falseFn;
img.onload = L.bind(this.fire, this, 'load');
img.src = this._url;
img.alt = this.options.alt;
},
_animateZoom: function (e) {
var topLeft = this._map._latLngToNewLayerPoint(this._bounds.getNorthWest(), e.zoom, e.center),
size = this._map._latLngToNewLayerPoint(this._bounds.getSouthEast(), e.zoom, e.center).subtract(topLeft),
offset = topLeft.add(size._multiplyBy((1 - 1 / e.scale) / 2));
L.DomUtil.setTransform(this._image, offset, e.scale);
},
_reset: function () {
var image = this._image,
bounds = new L.Bounds(
this._map.latLngToLayerPoint(this._bounds.getNorthWest()),
this._map.latLngToLayerPoint(this._bounds.getSouthEast())),
size = bounds.getSize();
L.DomUtil.setPosition(image, bounds.min);
image.style.width = size.x + 'px';
image.style.height = size.y + 'px';
},
_updateOpacity: function () {
L.DomUtil.setOpacity(this._image, this.options.opacity);
}
});
L.imageOverlay = function (url, bounds, options) {
return new L.ImageOverlay(url, bounds, options);
};
/*
* L.Icon is an image-based icon class that you can use with L.Marker for custom markers.
*/
L.Icon = L.Class.extend({
/*
options: {
iconUrl: (String) (required)
iconRetinaUrl: (String) (optional, used for retina devices if detected)
iconSize: (Point) (can be set through CSS)
iconAnchor: (Point) (centered by default, can be set in CSS with negative margins)
popupAnchor: (Point) (if not specified, popup opens in the anchor point)
shadowUrl: (String) (no shadow by default)
shadowRetinaUrl: (String) (optional, used for retina devices if detected)
shadowSize: (Point)
shadowAnchor: (Point)
className: (String)
},
*/
initialize: function (options) {
L.setOptions(this, options);
},
createIcon: function (oldIcon) {
return this._createIcon('icon', oldIcon);
},
createShadow: function (oldIcon) {
return this._createIcon('shadow', oldIcon);
},
_createIcon: function (name, oldIcon) {
var src = this._getIconUrl(name);
if (!src) {
if (name === 'icon') {
throw new Error('iconUrl not set in Icon options (see the docs).');
}
return null;
}
var img = this._createImg(src, oldIcon && oldIcon.tagName === 'IMG' ? oldIcon : null);
this._setIconStyles(img, name);
return img;
},
_setIconStyles: function (img, name) {
var options = this.options,
size = L.point(options[name + 'Size']),
anchor = L.point(name === 'shadow' && options.shadowAnchor || options.iconAnchor ||
size && size.divideBy(2, true));
img.className = 'leaflet-marker-' + name + ' ' + (options.className || '');
if (anchor) {
img.style.marginLeft = (-anchor.x) + 'px';
img.style.marginTop = (-anchor.y) + 'px';
}
if (size) {
img.style.width = size.x + 'px';
img.style.height = size.y + 'px';
}
},
_createImg: function (src, el) {
el = el || document.createElement('img');
el.src = src;
return el;
},
_getIconUrl: function (name) {
return L.Browser.retina && this.options[name + 'RetinaUrl'] || this.options[name + 'Url'];
}
});
L.icon = function (options) {
return new L.Icon(options);
};
/*
* L.Icon.Default is the blue marker icon used by default in Leaflet.
*/
L.Icon.Default = L.Icon.extend({
options: {
iconSize: [25, 41],
iconAnchor: [12, 41],
popupAnchor: [1, -34],
shadowSize: [41, 41]
},
_getIconUrl: function (name) {
var key = name + 'Url';
if (this.options[key]) {
return this.options[key];
}
var path = L.Icon.Default.imagePath;
if (!path) {
throw new Error('Couldn\'t autodetect L.Icon.Default.imagePath, set it manually.');
}
return path + '/marker-' + name + (L.Browser.retina && name === 'icon' ? '-2x' : '') + '.png';
}
});
L.Icon.Default.imagePath = (function () {
var scripts = document.getElementsByTagName('script'),
leafletRe = /[\/^]leaflet[\-\._]?([\w\-\._]*)\.js\??/;
var i, len, src, path;
for (i = 0, len = scripts.length; i < len; i++) {
src = scripts[i].src;
if (src.match(leafletRe)) {
path = src.split(leafletRe)[0];
return (path ? path + '/' : '') + 'images';
}
}
}());
/*
* L.Marker is used to display clickable/draggable icons on the map.
*/
L.Marker = L.Layer.extend({
options: {
pane: 'markerPane',
icon: new L.Icon.Default(),
// title: '',
// alt: '',
interactive: true,
// draggable: false,
keyboard: true,
zIndexOffset: 0,
opacity: 1,
// riseOnHover: false,
riseOffset: 250
},
initialize: function (latlng, options) {
L.setOptions(this, options);
this._latlng = L.latLng(latlng);
},
onAdd: function (map) {
this._zoomAnimated = this._zoomAnimated && map.options.markerZoomAnimation;
this._initIcon();
this.update();
},
onRemove: function () {
if (this.dragging) {
this.dragging.disable();
}
this._removeIcon();
this._removeShadow();
},
getEvents: function () {
var events = {viewreset: this.update};
if (this._zoomAnimated) {
events.zoomanim = this._animateZoom;
}
return events;
},
getLatLng: function () {
return this._latlng;
},
setLatLng: function (latlng) {
var oldLatLng = this._latlng;
this._latlng = L.latLng(latlng);
this.update();
return this.fire('move', { oldLatLng: oldLatLng, latlng: this._latlng });
},
setZIndexOffset: function (offset) {
this.options.zIndexOffset = offset;
return this.update();
},
setIcon: function (icon) {
this.options.icon = icon;
if (this._map) {
this._initIcon();
this.update();
}
if (this._popup) {
this.bindPopup(this._popup, this._popup.options);
}
return this;
},
update: function () {
if (this._icon) {
var pos = this._map.latLngToLayerPoint(this._latlng).round();
this._setPos(pos);
}
return this;
},
_initIcon: function () {
var options = this.options,
classToAdd = 'leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');
var icon = options.icon.createIcon(this._icon),
addIcon = false;
// if we're not reusing the icon, remove the old one and init new one
if (icon !== this._icon) {
if (this._icon) {
this._removeIcon();
}
addIcon = true;
if (options.title) {
icon.title = options.title;
}
if (options.alt) {
icon.alt = options.alt;
}
}
L.DomUtil.addClass(icon, classToAdd);
if (options.keyboard) {
icon.tabIndex = '0';
}
this._icon = icon;
this._initInteraction();
if (options.riseOnHover) {
L.DomEvent.on(icon, {
mouseover: this._bringToFront,
mouseout: this._resetZIndex
}, this);
}
var newShadow = options.icon.createShadow(this._shadow),
addShadow = false;
if (newShadow !== this._shadow) {
this._removeShadow();
addShadow = true;
}
if (newShadow) {
L.DomUtil.addClass(newShadow, classToAdd);
}
this._shadow = newShadow;
if (options.opacity < 1) {
this._updateOpacity();
}
if (addIcon) {
this.getPane().appendChild(this._icon);
}
if (newShadow && addShadow) {
this.getPane('shadowPane').appendChild(this._shadow);
}
},
_removeIcon: function () {
if (this.options.riseOnHover) {
L.DomEvent.off(this._icon, {
mouseover: this._bringToFront,
mouseout: this._resetZIndex
}, this);
}
L.DomUtil.remove(this._icon);
this._icon = null;
},
_removeShadow: function () {
if (this._shadow) {
L.DomUtil.remove(this._shadow);
}
this._shadow = null;
},
_setPos: function (pos) {
L.DomUtil.setPosition(this._icon, pos);
if (this._shadow) {
L.DomUtil.setPosition(this._shadow, pos);
}
this._zIndex = pos.y + this.options.zIndexOffset;
this._resetZIndex();
},
_updateZIndex: function (offset) {
this._icon.style.zIndex = this._zIndex + offset;
},
_animateZoom: function (opt) {
var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round();
this._setPos(pos);
},
_initInteraction: function () {
if (!this.options.interactive) { return; }
L.DomUtil.addClass(this._icon, 'leaflet-interactive');
L.DomEvent.on(this._icon, 'click dblclick mousedown mouseup mouseover mousemove mouseout contextmenu keypress',
this._fireMouseEvent, this);
if (L.Handler.MarkerDrag) {
if (this.dragging) {
this.dragging.disable();
}
this.dragging = new L.Handler.MarkerDrag(this);
if (this.options.draggable) {
this.dragging.enable();
}
}
},
_fireMouseEvent: function (e, type) {
// to prevent outline when clicking on keyboard-focusable marker
if (e.type === 'mousedown') {
L.DomEvent.preventDefault(e);
}
if (e.type === 'keypress' && e.keyCode === 13) {
type = 'click';
}
if (this._map) {
this._map._fireMouseEvent(this, e, type, true, this._latlng);
}
},
setOpacity: function (opacity) {
this.options.opacity = opacity;
if (this._map) {
this._updateOpacity();
}
return this;
},
_updateOpacity: function () {
var opacity = this.options.opacity;
L.DomUtil.setOpacity(this._icon, opacity);
if (this._shadow) {
L.DomUtil.setOpacity(this._shadow, opacity);
}
},
_bringToFront: function () {
this._updateZIndex(this.options.riseOffset);
},
_resetZIndex: function () {
this._updateZIndex(0);
}
});
L.marker = function (latlng, options) {
return new L.Marker(latlng, options);
};
/*
* L.DivIcon is a lightweight HTML-based icon class (as opposed to the image-based L.Icon)
* to use with L.Marker.
*/
L.DivIcon = L.Icon.extend({
options: {
iconSize: [12, 12], // also can be set through CSS
/*
iconAnchor: (Point)
popupAnchor: (Point)
html: (String)
bgPos: (Point)
*/
className: 'leaflet-div-icon',
html: false
},
createIcon: function (oldIcon) {
var div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'),
options = this.options;
div.innerHTML = options.html !== false ? options.html : '';
if (options.bgPos) {
div.style.backgroundPosition = (-options.bgPos.x) + 'px ' + (-options.bgPos.y) + 'px';
}
this._setIconStyles(div, 'icon');
return div;
},
createShadow: function () {
return null;
}
});
L.divIcon = function (options) {
return new L.DivIcon(options);
};
/*
* L.Popup is used for displaying popups on the map.
*/
L.Map.mergeOptions({
closePopupOnClick: true
});
L.Popup = L.Layer.extend({
options: {
pane: 'popupPane',
minWidth: 50,
maxWidth: 300,
// maxHeight: <Number>,
offset: [0, 7],
autoPan: true,
autoPanPadding: [5, 5],
// autoPanPaddingTopLeft: <Point>,
// autoPanPaddingBottomRight: <Point>,
closeButton: true,
// keepInView: false,
// className: '',
zoomAnimation: true
},
initialize: function (options, source) {
L.setOptions(this, options);
this._source = source;
},
onAdd: function (map) {
this._zoomAnimated = this._zoomAnimated && this.options.zoomAnimation;
if (!this._container) {
this._initLayout();
}
if (map._fadeAnimated) {
L.DomUtil.setOpacity(this._container, 0);
}
clearTimeout(this._removeTimeout);
this.getPane().appendChild(this._container);
this.update();
if (map._fadeAnimated) {
L.DomUtil.setOpacity(this._container, 1);
}
map.fire('popupopen', {popup: this});
if (this._source) {
this._source.fire('popupopen', {popup: this}, true);
}
},
openOn: function (map) {
map.openPopup(this);
return this;
},
onRemove: function (map) {
if (map._fadeAnimated) {
L.DomUtil.setOpacity(this._container, 0);
this._removeTimeout = setTimeout(L.bind(L.DomUtil.remove, L.DomUtil, this._container), 200);
} else {
L.DomUtil.remove(this._container);
}
map.fire('popupclose', {popup: this});
if (this._source) {
this._source.fire('popupclose', {popup: this}, true);
}
},
getLatLng: function () {
return this._latlng;
},
setLatLng: function (latlng) {
this._latlng = L.latLng(latlng);
if (this._map) {
this._updatePosition();
this._adjustPan();
}
return this;
},
getContent: function () {
return this._content;
},
setContent: function (content) {
this._content = content;
this.update();
return this;
},
update: function () {
if (!this._map) { return; }
this._container.style.visibility = 'hidden';
this._updateContent();
this._updateLayout();
this._updatePosition();
this._container.style.visibility = '';
this._adjustPan();
},
getEvents: function () {
var events = {viewreset: this._updatePosition},
options = this.options;
if (this._zoomAnimated) {
events.zoomanim = this._animateZoom;
}
if ('closeOnClick' in options ? options.closeOnClick : this._map.options.closePopupOnClick) {
events.preclick = this._close;
}
if (options.keepInView) {
events.moveend = this._adjustPan;
}
return events;
},
isOpen: function () {
return !!this._map && this._map.hasLayer(this);
},
_close: function () {
if (this._map) {
this._map.closePopup(this);
}
},
_initLayout: function () {
var prefix = 'leaflet-popup',
container = this._container = L.DomUtil.create('div',
prefix + ' ' + (this.options.className || '') +
' leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide'));
if (this.options.closeButton) {
var closeButton = this._closeButton = L.DomUtil.create('a', prefix + '-close-button', container);
closeButton.href = '#close';
closeButton.innerHTML = '×';
L.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this);
}
var wrapper = this._wrapper = L.DomUtil.create('div', prefix + '-content-wrapper', container);
this._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper);
L.DomEvent
.disableClickPropagation(wrapper)
.disableScrollPropagation(this._contentNode)
.on(wrapper, 'contextmenu', L.DomEvent.stopPropagation);
this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container);
this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer);
},
_updateContent: function () {
if (!this._content) { return; }
var node = this._contentNode;
if (typeof this._content === 'string') {
node.innerHTML = this._content;
} else {
while (node.hasChildNodes()) {
node.removeChild(node.firstChild);
}
node.appendChild(this._content);
}
this.fire('contentupdate');
},
_updateLayout: function () {
var container = this._contentNode,
style = container.style;
style.width = '';
style.whiteSpace = 'nowrap';
var width = container.offsetWidth;
width = Math.min(width, this.options.maxWidth);
width = Math.max(width, this.options.minWidth);
style.width = (width + 1) + 'px';
style.whiteSpace = '';
style.height = '';
var height = container.offsetHeight,
maxHeight = this.options.maxHeight,
scrolledClass = 'leaflet-popup-scrolled';
if (maxHeight && height > maxHeight) {
style.height = maxHeight + 'px';
L.DomUtil.addClass(container, scrolledClass);
} else {
L.DomUtil.removeClass(container, scrolledClass);
}
this._containerWidth = this._container.offsetWidth;
},
_updatePosition: function () {
if (!this._map) { return; }
var pos = this._map.latLngToLayerPoint(this._latlng),
offset = L.point(this.options.offset);
if (this._zoomAnimated) {
L.DomUtil.setPosition(this._container, pos);
} else {
offset = offset.add(pos);
}
var bottom = this._containerBottom = -offset.y,
left = this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x;
// bottom position the popup in case the height of the popup changes (images loading etc)
this._container.style.bottom = bottom + 'px';
this._container.style.left = left + 'px';
},
_animateZoom: function (e) {
var pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center);
L.DomUtil.setPosition(this._container, pos);
},
_adjustPan: function () {
if (!this.options.autoPan) { return; }
var map = this._map,
containerHeight = this._container.offsetHeight,
containerWidth = this._containerWidth,
layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom);
if (this._zoomAnimated) {
layerPos._add(L.DomUtil.getPosition(this._container));
}
var containerPos = map.layerPointToContainerPoint(layerPos),
padding = L.point(this.options.autoPanPadding),
paddingTL = L.point(this.options.autoPanPaddingTopLeft || padding),
paddingBR = L.point(this.options.autoPanPaddingBottomRight || padding),
size = map.getSize(),
dx = 0,
dy = 0;
if (containerPos.x + containerWidth + paddingBR.x > size.x) { // right
dx = containerPos.x + containerWidth - size.x + paddingBR.x;
}
if (containerPos.x - dx - paddingTL.x < 0) { // left
dx = containerPos.x - paddingTL.x;
}
if (containerPos.y + containerHeight + paddingBR.y > size.y) { // bottom
dy = containerPos.y + containerHeight - size.y + paddingBR.y;
}
if (containerPos.y - dy - paddingTL.y < 0) { // top
dy = containerPos.y - paddingTL.y;
}
if (dx || dy) {
map
.fire('autopanstart')
.panBy([dx, dy]);
}
},
_onCloseButtonClick: function (e) {
this._close();
L.DomEvent.stop(e);
}
});
L.popup = function (options, source) {
return new L.Popup(options, source);
};
L.Map.include({
openPopup: function (popup, latlng, options) { // (Popup) or (String || HTMLElement, LatLng[, Object])
if (!(popup instanceof L.Popup)) {
var content = popup;
popup = new L.Popup(options).setContent(content);
}
if (latlng) {
popup.setLatLng(latlng);
}
if (this.hasLayer(popup)) {
return this;
}
this.closePopup();
this._popup = popup;
return this.addLayer(popup);
},
closePopup: function (popup) {
if (!popup || popup === this._popup) {
popup = this._popup;
this._popup = null;
}
if (popup) {
this.removeLayer(popup);
}
return this;
}
});
/*
* Adds popup-related methods to all layers.
*/
L.Layer.include({
bindPopup: function (content, options) {
if (content instanceof L.Popup) {
this._popup = content;
content._source = this;
} else {
if (!this._popup || options) {
this._popup = new L.Popup(options, this);
}
this._popup.setContent(content);
}
if (!this._popupHandlersAdded) {
this.on({
click: this._openPopup,
remove: this.closePopup,
move: this._movePopup
});
this._popupHandlersAdded = true;
}
return this;
},
unbindPopup: function () {
if (this._popup) {
this.on({
click: this._openPopup,
remove: this.closePopup,
move: this._movePopup
});
this._popupHandlersAdded = false;
this._popup = null;
}
return this;
},
openPopup: function (latlng) {
if (this._popup && this._map) {
this._map.openPopup(this._popup, latlng || this._latlng || this.getCenter());
}
return this;
},
closePopup: function () {
if (this._popup) {
this._popup._close();
}
return this;
},
togglePopup: function () {
if (this._popup) {
if (this._popup._map) {
this.closePopup();
} else {
this.openPopup();
}
}
return this;
},
setPopupContent: function (content) {
if (this._popup) {
this._popup.setContent(content);
}
return this;
},
getPopup: function () {
return this._popup;
},
_openPopup: function (e) {
this._map.openPopup(this._popup, e.latlng);
},
_movePopup: function (e) {
this._popup.setLatLng(e.latlng);
}
});
/*
* Popup extension to L.Marker, adding popup-related methods.
*/
L.Marker.include({
bindPopup: function (content, options) {
var anchor = L.point(this.options.icon.options.popupAnchor || [0, 0])
.add(L.Popup.prototype.options.offset);
options = L.extend({offset: anchor}, options);
return L.Layer.prototype.bindPopup.call(this, content, options);
},
_openPopup: L.Layer.prototype.togglePopup
});
/*
* L.LayerGroup is a class to combine several layers into one so that
* you can manipulate the group (e.g. add/remove it) as one layer.
*/
L.LayerGroup = L.Layer.extend({
initialize: function (layers) {
this._layers = {};
var i, len;
if (layers) {
for (i = 0, len = layers.length; i < len; i++) {
this.addLayer(layers[i]);
}
}
},
addLayer: function (layer) {
var id = this.getLayerId(layer);
this._layers[id] = layer;
if (this._map) {
this._map.addLayer(layer);
}
return this;
},
removeLayer: function (layer) {
var id = layer in this._layers ? layer : this.getLayerId(layer);
if (this._map && this._layers[id]) {
this._map.removeLayer(this._layers[id]);
}
delete this._layers[id];
return this;
},
hasLayer: function (layer) {
return !!layer && (layer in this._layers || this.getLayerId(layer) in this._layers);
},
clearLayers: function () {
for (var i in this._layers) {
this.removeLayer(this._layers[i]);
}
return this;
},
invoke: function (methodName) {
var args = Array.prototype.slice.call(arguments, 1),
i, layer;
for (i in this._layers) {
layer = this._layers[i];
if (layer[methodName]) {
layer[methodName].apply(layer, args);
}
}
return this;
},
onAdd: function (map) {
for (var i in this._layers) {
map.addLayer(this._layers[i]);
}
},
onRemove: function (map) {
for (var i in this._layers) {
map.removeLayer(this._layers[i]);
}
},
eachLayer: function (method, context) {
for (var i in this._layers) {
method.call(context, this._layers[i]);
}
return this;
},
getLayer: function (id) {
return this._layers[id];
},
getLayers: function () {
var layers = [];
for (var i in this._layers) {
layers.push(this._layers[i]);
}
return layers;
},
setZIndex: function (zIndex) {
return this.invoke('setZIndex', zIndex);
},
getLayerId: function (layer) {
return L.stamp(layer);
}
});
L.layerGroup = function (layers) {
return new L.LayerGroup(layers);
};
/*
* L.FeatureGroup extends L.LayerGroup by introducing mouse events and additional methods
* shared between a group of interactive layers (like vectors or markers).
*/
L.FeatureGroup = L.LayerGroup.extend({
addLayer: function (layer) {
if (this.hasLayer(layer)) {
return this;
}
layer.addEventParent(this);
L.LayerGroup.prototype.addLayer.call(this, layer);
if (this._popupContent && layer.bindPopup) {
layer.bindPopup(this._popupContent, this._popupOptions);
}
return this.fire('layeradd', {layer: layer});
},
removeLayer: function (layer) {
if (!this.hasLayer(layer)) {
return this;
}
if (layer in this._layers) {
layer = this._layers[layer];
}
layer.removeEventParent(this);
L.LayerGroup.prototype.removeLayer.call(this, layer);
if (this._popupContent) {
this.invoke('unbindPopup');
}
return this.fire('layerremove', {layer: layer});
},
bindPopup: function (content, options) {
this._popupContent = content;
this._popupOptions = options;
return this.invoke('bindPopup', content, options);
},
openPopup: function (latlng) {
// open popup on the first layer
for (var id in this._layers) {
this._layers[id].openPopup(latlng);
break;
}
return this;
},
setStyle: function (style) {
return this.invoke('setStyle', style);
},
bringToFront: function () {
return this.invoke('bringToFront');
},
bringToBack: function () {
return this.invoke('bringToBack');
},
getBounds: function () {
var bounds = new L.LatLngBounds();
this.eachLayer(function (layer) {
bounds.extend(layer.getBounds ? layer.getBounds() : layer.getLatLng());
});
return bounds;
}
});
L.featureGroup = function (layers) {
return new L.FeatureGroup(layers);
};
/*
* L.Renderer is a base class for renderer implementations (SVG, Canvas);
* handles renderer container, bounds and zoom animation.
*/
L.Renderer = L.Layer.extend({
options: {
// how much to extend the clip area around the map view (relative to its size)
// e.g. 0.1 would be 10% of map view in each direction; defaults to clip with the map view
padding: 0
},
initialize: function (options) {
L.setOptions(this, options);
L.stamp(this);
},
onAdd: function () {
if (!this._container) {
this._initContainer(); // defined by renderer implementations
if (this._zoomAnimated) {
L.DomUtil.addClass(this._container, 'leaflet-zoom-animated');
}
}
this.getPane().appendChild(this._container);
this._update();
},
onRemove: function () {
L.DomUtil.remove(this._container);
},
getEvents: function () {
var events = {
moveend: this._update
};
if (this._zoomAnimated) {
events.zoomanim = this._animateZoom;
}
return events;
},
_animateZoom: function (e) {
var origin = e.origin.subtract(this._map._getCenterLayerPoint()),
offset = this._bounds.min.add(origin.multiplyBy(1 - e.scale)).add(e.offset).round();
L.DomUtil.setTransform(this._container, offset, e.scale);
},
_update: function () {
// update pixel bounds of renderer container (for positioning/sizing/clipping later)
var p = this.options.padding,
size = this._map.getSize(),
min = this._map.containerPointToLayerPoint(size.multiplyBy(-p)).round();
this._bounds = new L.Bounds(min, min.add(size.multiplyBy(1 + p * 2)).round());
}
});
L.Map.include({
// used by each vector layer to decide which renderer to use
getRenderer: function (layer) {
var renderer = layer.options.renderer || this.options.renderer || this._renderer;
if (!renderer) {
renderer = this._renderer = (L.SVG && L.svg()) || (L.Canvas && L.canvas());
}
if (!this.hasLayer(renderer)) {
this.addLayer(renderer);
}
return renderer;
}
});
/*
* L.Path is the base class for all Leaflet vector layers like polygons and circles.
*/
L.Path = L.Layer.extend({
options: {
stroke: true,
color: '#3388ff',
weight: 3,
opacity: 1,
lineCap: 'round',
lineJoin: 'round',
// dashArray: null
// dashOffset: null
// fill: false
// fillColor: same as color by default
fillOpacity: 0.2,
fillRule: 'evenodd',
// className: ''
interactive: true
},
onAdd: function () {
this._renderer = this._map.getRenderer(this);
this._renderer._initPath(this);
// defined in children classes
this._project();
this._update();
this._renderer._addPath(this);
},
onRemove: function () {
this._renderer._removePath(this);
},
getEvents: function () {
return {
viewreset: this._project,
moveend: this._update
};
},
redraw: function () {
if (this._map) {
this._renderer._updatePath(this);
}
return this;
},
setStyle: function (style) {
L.setOptions(this, style);
if (this._renderer) {
this._renderer._updateStyle(this);
}
return this;
},
bringToFront: function () {
this._renderer._bringToFront(this);
return this;
},
bringToBack: function () {
this._renderer._bringToBack(this);
return this;
},
_fireMouseEvent: function (e, type) {
this._map._fireMouseEvent(this, e, type, true);
},
_clickTolerance: function () {
// used when doing hit detection for Canvas layers
return (this.options.stroke ? this.options.weight / 2 : 0) + (L.Browser.touch ? 10 : 0);
}
});
/*
* L.LineUtil contains different utility functions for line segments
* and polylines (clipping, simplification, distances, etc.)
*/
/*jshint bitwise:false */ // allow bitwise operations for this file
L.LineUtil = {
// Simplify polyline with vertex reduction and Douglas-Peucker simplification.
// Improves rendering performance dramatically by lessening the number of points to draw.
simplify: function (/*Point[]*/ points, /*Number*/ tolerance) {
if (!tolerance || !points.length) {
return points.slice();
}
var sqTolerance = tolerance * tolerance;
// stage 1: vertex reduction
points = this._reducePoints(points, sqTolerance);
// stage 2: Douglas-Peucker simplification
points = this._simplifyDP(points, sqTolerance);
return points;
},
// distance from a point to a segment between two points
pointToSegmentDistance: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
return Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true));
},
closestPointOnSegment: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
return this._sqClosestPointOnSegment(p, p1, p2);
},
// Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm
_simplifyDP: function (points, sqTolerance) {
var len = points.length,
ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array,
markers = new ArrayConstructor(len);
markers[0] = markers[len - 1] = 1;
this._simplifyDPStep(points, markers, sqTolerance, 0, len - 1);
var i,
newPoints = [];
for (i = 0; i < len; i++) {
if (markers[i]) {
newPoints.push(points[i]);
}
}
return newPoints;
},
_simplifyDPStep: function (points, markers, sqTolerance, first, last) {
var maxSqDist = 0,
index, i, sqDist;
for (i = first + 1; i <= last - 1; i++) {
sqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true);
if (sqDist > maxSqDist) {
index = i;
maxSqDist = sqDist;
}
}
if (maxSqDist > sqTolerance) {
markers[index] = 1;
this._simplifyDPStep(points, markers, sqTolerance, first, index);
this._simplifyDPStep(points, markers, sqTolerance, index, last);
}
},
// reduce points that are too close to each other to a single point
_reducePoints: function (points, sqTolerance) {
var reducedPoints = [points[0]];
for (var i = 1, prev = 0, len = points.length; i < len; i++) {
if (this._sqDist(points[i], points[prev]) > sqTolerance) {
reducedPoints.push(points[i]);
prev = i;
}
}
if (prev < len - 1) {
reducedPoints.push(points[len - 1]);
}
return reducedPoints;
},
// Cohen-Sutherland line clipping algorithm.
// Used to avoid rendering parts of a polyline that are not currently visible.
clipSegment: function (a, b, bounds, useLastCode) {
var codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds),
codeB = this._getBitCode(b, bounds),
codeOut, p, newCode;
// save 2nd code to avoid calculating it on the next segment
this._lastCode = codeB;
while (true) {
// if a,b is inside the clip window (trivial accept)
if (!(codeA | codeB)) {
return [a, b];
// if a,b is outside the clip window (trivial reject)
} else if (codeA & codeB) {
return false;
// other cases
} else {
codeOut = codeA || codeB;
p = this._getEdgeIntersection(a, b, codeOut, bounds);
newCode = this._getBitCode(p, bounds);
if (codeOut === codeA) {
a = p;
codeA = newCode;
} else {
b = p;
codeB = newCode;
}
}
}
},
_getEdgeIntersection: function (a, b, code, bounds) {
var dx = b.x - a.x,
dy = b.y - a.y,
min = bounds.min,
max = bounds.max,
x, y;
if (code & 8) { // top
x = a.x + dx * (max.y - a.y) / dy;
y = max.y;
} else if (code & 4) { // bottom
x = a.x + dx * (min.y - a.y) / dy;
y = min.y;
} else if (code & 2) { // right
x = max.x;
y = a.y + dy * (max.x - a.x) / dx;
} else if (code & 1) { // left
x = min.x;
y = a.y + dy * (min.x - a.x) / dx;
}
return new L.Point(x, y, true);
},
_getBitCode: function (/*Point*/ p, bounds) {
var code = 0;
if (p.x < bounds.min.x) { // left
code |= 1;
} else if (p.x > bounds.max.x) { // right
code |= 2;
}
if (p.y < bounds.min.y) { // bottom
code |= 4;
} else if (p.y > bounds.max.y) { // top
code |= 8;
}
return code;
},
// square distance (to avoid unnecessary Math.sqrt calls)
_sqDist: function (p1, p2) {
var dx = p2.x - p1.x,
dy = p2.y - p1.y;
return dx * dx + dy * dy;
},
// return closest point on segment or distance to that point
_sqClosestPointOnSegment: function (p, p1, p2, sqDist) {
var x = p1.x,
y = p1.y,
dx = p2.x - x,
dy = p2.y - y,
dot = dx * dx + dy * dy,
t;
if (dot > 0) {
t = ((p.x - x) * dx + (p.y - y) * dy) / dot;
if (t > 1) {
x = p2.x;
y = p2.y;
} else if (t > 0) {
x += dx * t;
y += dy * t;
}
}
dx = p.x - x;
dy = p.y - y;
return sqDist ? dx * dx + dy * dy : new L.Point(x, y);
}
};
/*
* L.Polyline implements polyline vector layer (a set of points connected with lines)
*/
L.Polyline = L.Path.extend({
options: {
// how much to simplify the polyline on each zoom level
// more = better performance and smoother look, less = more accurate
smoothFactor: 1.0
// noClip: false
},
initialize: function (latlngs, options) {
L.setOptions(this, options);
this._setLatLngs(latlngs);
},
getLatLngs: function () {
// TODO rings
return this._latlngs;
},
setLatLngs: function (latlngs) {
this._setLatLngs(latlngs);
return this.redraw();
},
addLatLng: function (latlng) {
// TODO rings
latlng = L.latLng(latlng);
this._latlngs.push(latlng);
this._bounds.extend(latlng);
return this.redraw();
},
spliceLatLngs: function () {
// TODO rings
var removed = [].splice.apply(this._latlngs, arguments);
this._setLatLngs(this._latlngs);
this.redraw();
return removed;
},
closestLayerPoint: function (p) {
var minDistance = Infinity,
minPoint = null,
closest = L.LineUtil._sqClosestPointOnSegment,
p1, p2;
for (var j = 0, jLen = this._parts.length; j < jLen; j++) {
var points = this._parts[j];
for (var i = 1, len = points.length; i < len; i++) {
p1 = points[i - 1];
p2 = points[i];
var sqDist = closest(p, p1, p2, true);
if (sqDist < minDistance) {
minDistance = sqDist;
minPoint = closest(p, p1, p2);
}
}
}
if (minPoint) {
minPoint.distance = Math.sqrt(minDistance);
}
return minPoint;
},
getCenter: function () {
var i, halfDist, segDist, dist, p1, p2, ratio,
points = this._rings[0],
len = points.length;
// polyline centroid algorithm; only uses the first ring if there are multiple
for (i = 0, halfDist = 0; i < len - 1; i++) {
halfDist += points[i].distanceTo(points[i + 1]) / 2;
}
for (i = 0, dist = 0; i < len - 1; i++) {
p1 = points[i];
p2 = points[i + 1];
segDist = p1.distanceTo(p2);
dist += segDist;
if (dist > halfDist) {
ratio = (dist - halfDist) / segDist;
return this._map.layerPointToLatLng([
p2.x - ratio * (p2.x - p1.x),
p2.y - ratio * (p2.y - p1.y)
]);
}
}
},
getBounds: function () {
return this._bounds;
},
_setLatLngs: function (latlngs) {
this._bounds = new L.LatLngBounds();
this._latlngs = this._convertLatLngs(latlngs);
},
// recursively convert latlngs input into actual LatLng instances; calculate bounds along the way
_convertLatLngs: function (latlngs) {
var result = [],
flat = this._flat(latlngs);
for (var i = 0, len = latlngs.length; i < len; i++) {
if (flat) {
result[i] = L.latLng(latlngs[i]);
this._bounds.extend(result[i]);
} else {
result[i] = this._convertLatLngs(latlngs[i]);
}
}
return result;
},
_flat: function (latlngs) {
// true if it's a flat array of latlngs; false if nested
return !L.Util.isArray(latlngs[0]) || typeof latlngs[0][0] !== 'object';
},
_project: function () {
this._rings = [];
this._projectLatlngs(this._latlngs, this._rings);
// project bounds as well to use later for Canvas hit detection/etc.
var w = this._clickTolerance(),
p = new L.Point(w, -w);
if (this._latlngs.length) {
this._pxBounds = new L.Bounds(
this._map.latLngToLayerPoint(this._bounds.getSouthWest())._subtract(p),
this._map.latLngToLayerPoint(this._bounds.getNorthEast())._add(p));
}
},
// recursively turns latlngs into a set of rings with projected coordinates
_projectLatlngs: function (latlngs, result) {
var flat = latlngs[0] instanceof L.LatLng,
len = latlngs.length,
i, ring;
if (flat) {
ring = [];
for (i = 0; i < len; i++) {
ring[i] = this._map.latLngToLayerPoint(latlngs[i]);
}
result.push(ring);
} else {
for (i = 0; i < len; i++) {
this._projectLatlngs(latlngs[i], result);
}
}
},
// clip polyline by renderer bounds so that we have less to render for performance
_clipPoints: function () {
if (this.options.noClip) {
this._parts = this._rings;
return;
}
this._parts = [];
var parts = this._parts,
bounds = this._renderer._bounds,
i, j, k, len, len2, segment, points;
for (i = 0, k = 0, len = this._rings.length; i < len; i++) {
points = this._rings[i];
for (j = 0, len2 = points.length; j < len2 - 1; j++) {
segment = L.LineUtil.clipSegment(points[j], points[j + 1], bounds, j);
if (!segment) { continue; }
parts[k] = parts[k] || [];
parts[k].push(segment[0]);
// if segment goes out of screen, or it's the last one, it's the end of the line part
if ((segment[1] !== points[j + 1]) || (j === len2 - 2)) {
parts[k].push(segment[1]);
k++;
}
}
}
},
// simplify each clipped part of the polyline for performance
_simplifyPoints: function () {
var parts = this._parts,
tolerance = this.options.smoothFactor;
for (var i = 0, len = parts.length; i < len; i++) {
parts[i] = L.LineUtil.simplify(parts[i], tolerance);
}
},
_update: function () {
if (!this._map) { return; }
this._clipPoints();
this._simplifyPoints();
this._updatePath();
},
_updatePath: function () {
this._renderer._updatePoly(this);
}
});
L.polyline = function (latlngs, options) {
return new L.Polyline(latlngs, options);
};
/*
* L.PolyUtil contains utility functions for polygons (clipping, etc.).
*/
/*jshint bitwise:false */ // allow bitwise operations here
L.PolyUtil = {};
/*
* Sutherland-Hodgeman polygon clipping algorithm.
* Used to avoid rendering parts of a polygon that are not currently visible.
*/
L.PolyUtil.clipPolygon = function (points, bounds) {
var clippedPoints,
edges = [1, 4, 2, 8],
i, j, k,
a, b,
len, edge, p,
lu = L.LineUtil;
for (i = 0, len = points.length; i < len; i++) {
points[i]._code = lu._getBitCode(points[i], bounds);
}
// for each edge (left, bottom, right, top)
for (k = 0; k < 4; k++) {
edge = edges[k];
clippedPoints = [];
for (i = 0, len = points.length, j = len - 1; i < len; j = i++) {
a = points[i];
b = points[j];
// if a is inside the clip window
if (!(a._code & edge)) {
// if b is outside the clip window (a->b goes out of screen)
if (b._code & edge) {
p = lu._getEdgeIntersection(b, a, edge, bounds);
p._code = lu._getBitCode(p, bounds);
clippedPoints.push(p);
}
clippedPoints.push(a);
// else if b is inside the clip window (a->b enters the screen)
} else if (!(b._code & edge)) {
p = lu._getEdgeIntersection(b, a, edge, bounds);
p._code = lu._getBitCode(p, bounds);
clippedPoints.push(p);
}
}
points = clippedPoints;
}
return points;
};
/*
* L.Polygon implements polygon vector layer (closed polyline with a fill inside).
*/
L.Polygon = L.Polyline.extend({
options: {
fill: true
},
getCenter: function () {
var i, j, len, p1, p2, f, area, x, y,
points = this._rings[0];
// polygon centroid algorithm; only uses the first ring if there are multiple
area = x = y = 0;
for (i = 0, len = points.length, j = len - 1; i < len; j = i++) {
p1 = points[i];
p2 = points[j];
f = p1.y * p2.x - p2.y * p1.x;
x += (p1.x + p2.x) * f;
y += (p1.y + p2.y) * f;
area += f * 3;
}
return this._map.layerPointToLatLng([x / area, y / area]);
},
_convertLatLngs: function (latlngs) {
var result = L.Polyline.prototype._convertLatLngs.call(this, latlngs),
len = result.length;
// remove last point if it equals first one
if (len >= 2 && result[0] instanceof L.LatLng && result[0].equals(result[len - 1])) {
result.pop();
}
return result;
},
_clipPoints: function () {
if (this.options.noClip) {
this._parts = this._rings;
return;
}
// polygons need a different clipping algorithm so we redefine that
var bounds = this._renderer._bounds,
w = this.options.weight,
p = new L.Point(w, w);
// increase clip padding by stroke width to avoid stroke on clip edges
bounds = new L.Bounds(bounds.min.subtract(p), bounds.max.add(p));
this._parts = [];
for (var i = 0, len = this._rings.length, clipped; i < len; i++) {
clipped = L.PolyUtil.clipPolygon(this._rings[i], bounds);
if (clipped.length) {
this._parts.push(clipped);
}
}
},
_updatePath: function () {
this._renderer._updatePoly(this, true);
}
});
L.polygon = function (latlngs, options) {
return new L.Polygon(latlngs, options);
};
/*
* L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object.
*/
L.Rectangle = L.Polygon.extend({
initialize: function (latLngBounds, options) {
L.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options);
},
setBounds: function (latLngBounds) {
this.setLatLngs(this._boundsToLatLngs(latLngBounds));
},
_boundsToLatLngs: function (latLngBounds) {
latLngBounds = L.latLngBounds(latLngBounds);
return [
latLngBounds.getSouthWest(),
latLngBounds.getNorthWest(),
latLngBounds.getNorthEast(),
latLngBounds.getSouthEast()
];
}
});
L.rectangle = function (latLngBounds, options) {
return new L.Rectangle(latLngBounds, options);
};
/*
* L.CircleMarker is a circle overlay with a permanent pixel radius.
*/
L.CircleMarker = L.Path.extend({
options: {
fill: true,
radius: 10
},
initialize: function (latlng, options) {
L.setOptions(this, options);
this._latlng = L.latLng(latlng);
this._radius = this.options.radius;
},
setLatLng: function (latlng) {
this._latlng = L.latLng(latlng);
this.redraw();
return this.fire('move', {latlng: this._latlng});
},
getLatLng: function () {
return this._latlng;
},
setRadius: function (radius) {
this.options.radius = this._radius = radius;
return this.redraw();
},
getRadius: function () {
return this._radius;
},
setStyle : function (options) {
var radius = options && options.radius || this._radius;
L.Path.prototype.setStyle.call(this, options);
this.setRadius(radius);
return this;
},
_project: function () {
this._point = this._map.latLngToLayerPoint(this._latlng);
this._updateBounds();
},
_updateBounds: function () {
var r = this._radius,
r2 = this._radiusY || r,
w = this._clickTolerance(),
p = [r + w, r2 + w];
this._pxBounds = new L.Bounds(this._point.subtract(p), this._point.add(p));
},
_update: function () {
if (this._map) {
this._updatePath();
}
},
_updatePath: function () {
this._renderer._updateCircle(this);
},
_empty: function () {
return this._radius && !this._renderer._bounds.intersects(this._pxBounds);
}
});
L.circleMarker = function (latlng, options) {
return new L.CircleMarker(latlng, options);
};
/*
* L.Circle is a circle overlay (with a certain radius in meters).
* It's an approximation and starts to diverge from a real circle closer to poles (due to projection distortion)
*/
L.Circle = L.CircleMarker.extend({
initialize: function (latlng, radius, options) {
L.setOptions(this, options);
this._latlng = L.latLng(latlng);
this._mRadius = radius;
},
setRadius: function (radius) {
this._mRadius = radius;
return this.redraw();
},
getRadius: function () {
return this._mRadius;
},
getBounds: function () {
var half = [this._radius, this._radiusY];
return new L.LatLngBounds(
this._map.layerPointToLatLng(this._point.subtract(half)),
this._map.layerPointToLatLng(this._point.add(half)));
},
setStyle: L.Path.prototype.setStyle,
_project: function () {
var lng = this._latlng.lng,
lat = this._latlng.lat,
map = this._map,
crs = map.options.crs;
if (crs.distance === L.CRS.Earth.distance) {
var d = Math.PI / 180,
latR = (this._mRadius / L.CRS.Earth.R) / d,
top = map.project([lat + latR, lng]),
bottom = map.project([lat - latR, lng]),
p = top.add(bottom).divideBy(2),
lat2 = map.unproject(p).lat,
lngR = Math.acos((Math.cos(latR * d) - Math.sin(lat * d) * Math.sin(lat2 * d)) /
(Math.cos(lat * d) * Math.cos(lat2 * d))) / d;
this._point = p.subtract(map.getPixelOrigin());
this._radius = isNaN(lngR) ? 0 : Math.max(Math.round(p.x - map.project([lat2, lng - lngR]).x), 1);
this._radiusY = Math.max(Math.round(p.y - top.y), 1);
} else {
var latlng2 = crs.unproject(crs.project(this._latlng).subtract([this._mRadius, 0]));
this._point = map.latLngToLayerPoint(this._latlng);
this._radius = this._point.x - map.latLngToLayerPoint(latlng2).x;
}
this._updateBounds();
}
});
L.circle = function (latlng, radius, options) {
return new L.Circle(latlng, radius, options);
};
/*
* L.SVG renders vector layers with SVG. All SVG-specific code goes here.
*/
L.SVG = L.Renderer.extend({
_initContainer: function () {
this._container = L.SVG.create('svg');
this._paths = {};
this._initEvents();
// makes it possible to click through svg root; we'll reset it back in individual paths
this._container.setAttribute('pointer-events', 'none');
},
_update: function () {
if (this._map._animatingZoom && this._bounds) { return; }
L.Renderer.prototype._update.call(this);
var b = this._bounds,
size = b.getSize(),
container = this._container,
pane = this.getPane();
// hack to make flicker on drag end on mobile webkit less irritating
if (L.Browser.mobileWebkit) {
pane.removeChild(container);
}
L.DomUtil.setPosition(container, b.min);
// set size of svg-container if changed
if (!this._svgSize || !this._svgSize.equals(size)) {
this._svgSize = size;
container.setAttribute('width', size.x);
container.setAttribute('height', size.y);
}
// movement: update container viewBox so that we don't have to change coordinates of individual layers
L.DomUtil.setPosition(container, b.min);
container.setAttribute('viewBox', [b.min.x, b.min.y, size.x, size.y].join(' '));
if (L.Browser.mobileWebkit) {
pane.appendChild(container);
}
},
// methods below are called by vector layers implementations
_initPath: function (layer) {
var path = layer._path = L.SVG.create('path');
if (layer.options.className) {
L.DomUtil.addClass(path, layer.options.className);
}
if (layer.options.interactive) {
L.DomUtil.addClass(path, 'leaflet-interactive');
}
this._updateStyle(layer);
},
_addPath: function (layer) {
var path = layer._path;
this._container.appendChild(path);
this._paths[L.stamp(path)] = layer;
},
_removePath: function (layer) {
var path = layer._path;
L.DomUtil.remove(path);
delete this._paths[L.stamp(path)];
},
_updatePath: function (layer) {
layer._project();
layer._update();
},
_updateStyle: function (layer) {
var path = layer._path,
options = layer.options;
if (!path) { return; }
if (options.stroke) {
path.setAttribute('stroke', options.color);
path.setAttribute('stroke-opacity', options.opacity);
path.setAttribute('stroke-width', options.weight);
path.setAttribute('stroke-linecap', options.lineCap);
path.setAttribute('stroke-linejoin', options.lineJoin);
if (options.dashArray) {
path.setAttribute('stroke-dasharray', options.dashArray);
} else {
path.removeAttribute('stroke-dasharray');
}
if (options.dashOffset) {
path.setAttribute('stroke-dashoffset', options.dashOffset);
} else {
path.removeAttribute('stroke-dashoffset');
}
} else {
path.setAttribute('stroke', 'none');
}
if (options.fill) {
path.setAttribute('fill', options.fillColor || options.color);
path.setAttribute('fill-opacity', options.fillOpacity);
path.setAttribute('fill-rule', options.fillRule || 'evenodd');
} else {
path.setAttribute('fill', 'none');
}
path.setAttribute('pointer-events', options.pointerEvents || (options.interactive ? 'visiblePainted' : 'none'));
},
_updatePoly: function (layer, closed) {
this._setPath(layer, L.SVG.pointsToPath(layer._parts, closed));
},
_updateCircle: function (layer) {
var p = layer._point,
r = layer._radius,
r2 = layer._radiusY || r,
arc = 'a' + r + ',' + r2 + ' 0 1,0 ';
// drawing a circle with two half-arcs
var d = layer._empty() ? 'M0 0' :
'M' + (p.x - r) + ',' + p.y +
arc + (r * 2) + ',0 ' +
arc + (-r * 2) + ',0 ';
this._setPath(layer, d);
},
_setPath: function (layer, path) {
layer._path.setAttribute('d', path);
},
// SVG does not have the concept of zIndex so we resort to changing the DOM order of elements
_bringToFront: function (layer) {
L.DomUtil.toFront(layer._path);
},
_bringToBack: function (layer) {
L.DomUtil.toBack(layer._path);
},
// TODO remove duplication with L.Map
_initEvents: function () {
L.DomEvent.on(this._container, 'click dblclick mousedown mouseup mouseover mouseout mousemove contextmenu',
this._fireMouseEvent, this);
},
_fireMouseEvent: function (e) {
var path = this._paths[L.stamp(e.target || e.srcElement)];
if (path) {
path._fireMouseEvent(e);
}
}
});
L.extend(L.SVG, {
create: function (name) {
return document.createElementNS('http://www.w3.org/2000/svg', name);
},
// generates SVG path string for multiple rings, with each ring turning into "M..L..L.." instructions
pointsToPath: function (rings, closed) {
var str = '',
i, j, len, len2, points, p;
for (i = 0, len = rings.length; i < len; i++) {
points = rings[i];
for (j = 0, len2 = points.length; j < len2; j++) {
p = points[j];
str += (j ? 'L' : 'M') + p.x + ' ' + p.y;
}
// closes the ring for polygons; "x" is VML syntax
str += closed ? (L.Browser.svg ? 'z' : 'x') : '';
}
// SVG complains about empty path strings
return str || 'M0 0';
}
});
L.Browser.svg = !!(document.createElementNS && L.SVG.create('svg').createSVGRect);
L.svg = function (options) {
return L.Browser.svg || L.Browser.vml ? new L.SVG(options) : null;
};
/*
* Vector rendering for IE7-8 through VML.
* Thanks to Dmitry Baranovsky and his Raphael library for inspiration!
*/
L.Browser.vml = !L.Browser.svg && (function () {
try {
var div = document.createElement('div');
div.innerHTML = '<v:shape adj="1"/>';
var shape = div.firstChild;
shape.style.behavior = 'url(#default#VML)';
return shape && (typeof shape.adj === 'object');
} catch (e) {
return false;
}
}());
// redefine some SVG methods to handle VML syntax which is similar but with some differences
L.SVG.include(!L.Browser.vml ? {} : {
_initContainer: function () {
this._container = L.DomUtil.create('div', 'leaflet-vml-container');
this._paths = {};
this._initEvents();
},
_update: function () {
if (this._map._animatingZoom) { return; }
L.Renderer.prototype._update.call(this);
},
_initPath: function (layer) {
var container = layer._container = L.SVG.create('shape');
L.DomUtil.addClass(container, 'leaflet-vml-shape ' + (this.options.className || ''));
container.coordsize = '1 1';
layer._path = L.SVG.create('path');
container.appendChild(layer._path);
this._updateStyle(layer);
},
_addPath: function (layer) {
var container = layer._container;
this._container.appendChild(container);
this._paths[L.stamp(container)] = layer;
},
_removePath: function (layer) {
var container = layer._container;
L.DomUtil.remove(container);
delete this._paths[L.stamp(container)];
},
_updateStyle: function (layer) {
var stroke = layer._stroke,
fill = layer._fill,
options = layer.options,
container = layer._container;
container.stroked = !!options.stroke;
container.filled = !!options.fill;
if (options.stroke) {
if (!stroke) {
stroke = layer._stroke = L.SVG.create('stroke');
container.appendChild(stroke);
}
stroke.weight = options.weight + 'px';
stroke.color = options.color;
stroke.opacity = options.opacity;
if (options.dashArray) {
stroke.dashStyle = L.Util.isArray(options.dashArray) ?
options.dashArray.join(' ') :
options.dashArray.replace(/( *, *)/g, ' ');
} else {
stroke.dashStyle = '';
}
stroke.endcap = options.lineCap.replace('butt', 'flat');
stroke.joinstyle = options.lineJoin;
} else if (stroke) {
container.removeChild(stroke);
layer._stroke = null;
}
if (options.fill) {
if (!fill) {
fill = layer._fill = L.SVG.create('fill');
container.appendChild(fill);
}
fill.color = options.fillColor || options.color;
fill.opacity = options.fillOpacity;
} else if (fill) {
container.removeChild(fill);
layer._fill = null;
}
},
_updateCircle: function (layer) {
var p = layer._point.round(),
r = Math.round(layer._radius),
r2 = Math.round(layer._radiusY || r);
this._setPath(layer, layer._empty() ? 'M0 0' :
'AL ' + p.x + ',' + p.y + ' ' + r + ',' + r2 + ' 0,' + (65535 * 360));
},
_setPath: function (layer, path) {
layer._path.v = path;
}
});
if (L.Browser.vml) {
L.SVG.create = (function () {
try {
document.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml');
return function (name) {
return document.createElement('<lvml:' + name + ' class="lvml">');
};
} catch (e) {
return function (name) {
return document.createElement('<' + name + ' xmlns="urn:schemas-microsoft.com:vml" class="lvml">');
};
}
})();
}
/*
* L.Canvas handles Canvas vector layers rendering and mouse events handling. All Canvas-specific code goes here.
*/
L.Canvas = L.Renderer.extend({
onAdd: function () {
L.Renderer.prototype.onAdd.call(this);
this._layers = this._layers || {};
// redraw vectors since canvas is cleared upon removal
this._draw();
},
_initContainer: function () {
var container = this._container = document.createElement('canvas');
L.DomEvent
.on(container, 'mousemove', this._onMouseMove, this)
.on(container, 'click dblclick mousedown mouseup contextmenu', this._onClick, this);
this._ctx = container.getContext('2d');
},
_update: function () {
if (this._map._animatingZoom && this._bounds) { return; }
L.Renderer.prototype._update.call(this);
var b = this._bounds,
container = this._container,
size = b.getSize(),
m = L.Browser.retina ? 2 : 1;
L.DomUtil.setPosition(container, b.min);
// set canvas size (also clearing it); use double size on retina
container.width = m * size.x;
container.height = m * size.y;
container.style.width = size.x + 'px';
container.style.height = size.y + 'px';
if (L.Browser.retina) {
this._ctx.scale(2, 2);
}
// translate so we use the same path coordinates after canvas element moves
this._ctx.translate(-b.min.x, -b.min.y);
},
_initPath: function (layer) {
this._layers[L.stamp(layer)] = layer;
},
_addPath: L.Util.falseFn,
_removePath: function (layer) {
layer._removed = true;
this._requestRedraw(layer);
},
_updatePath: function (layer) {
this._redrawBounds = layer._pxBounds;
this._draw(true);
layer._project();
layer._update();
this._draw();
this._redrawBounds = null;
},
_updateStyle: function (layer) {
this._requestRedraw(layer);
},
_requestRedraw: function (layer) {
if (!this._map) { return; }
this._redrawBounds = this._redrawBounds || new L.Bounds();
this._redrawBounds.extend(layer._pxBounds.min).extend(layer._pxBounds.max);
this._redrawRequest = this._redrawRequest || L.Util.requestAnimFrame(this._redraw, this);
},
_redraw: function () {
this._redrawRequest = null;
this._draw(true); // clear layers in redraw bounds
this._draw(); // draw layers
this._redrawBounds = null;
},
_draw: function (clear) {
this._clear = clear;
var layer;
for (var id in this._layers) {
layer = this._layers[id];
if (!this._redrawBounds || layer._pxBounds.intersects(this._redrawBounds)) {
layer._updatePath();
}
if (clear && layer._removed) {
delete layer._removed;
delete this._layers[id];
}
}
},
_updatePoly: function (layer, closed) {
var i, j, len2, p,
parts = layer._parts,
len = parts.length,
ctx = this._ctx;
if (!len) { return; }
ctx.beginPath();
for (i = 0; i < len; i++) {
for (j = 0, len2 = parts[i].length; j < len2; j++) {
p = parts[i][j];
ctx[j ? 'lineTo' : 'moveTo'](p.x, p.y);
}
if (closed) {
ctx.closePath();
}
}
this._fillStroke(ctx, layer);
// TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature
},
_updateCircle: function (layer) {
if (layer._empty()) { return; }
var p = layer._point,
ctx = this._ctx,
r = layer._radius,
s = (layer._radiusY || r) / r;
if (s !== 1) {
ctx.save();
ctx.scale(1, s);
}
ctx.beginPath();
ctx.arc(p.x, p.y / s, r, 0, Math.PI * 2, false);
if (s !== 1) {
ctx.restore();
}
this._fillStroke(ctx, layer);
},
_fillStroke: function (ctx, layer) {
var clear = this._clear,
options = layer.options;
ctx.globalCompositeOperation = clear ? 'destination-out' : 'source-over';
if (options.fill) {
ctx.globalAlpha = clear ? 1 : options.fillOpacity;
ctx.fillStyle = options.fillColor || options.color;
ctx.fill(options.fillRule || 'evenodd');
}
if (options.stroke) {
ctx.globalAlpha = clear ? 1 : options.opacity;
// if clearing shape, do it with the previously drawn line width
layer._prevWeight = ctx.lineWidth = clear ? layer._prevWeight + 1 : options.weight;
ctx.strokeStyle = options.color;
ctx.lineCap = options.lineCap;
ctx.lineJoin = options.lineJoin;
ctx.stroke();
}
},
// Canvas obviously doesn't have mouse events for individual drawn objects,
// so we emulate that by calculating what's under the mouse on mousemove/click manually
_onClick: function (e) {
var point = this._map.mouseEventToLayerPoint(e);
for (var id in this._layers) {
if (this._layers[id]._containsPoint(point)) {
this._layers[id]._fireMouseEvent(e);
}
}
},
_onMouseMove: function (e) {
if (!this._map || this._map._animatingZoom) { return; }
var point = this._map.mouseEventToLayerPoint(e);
// TODO don't do on each move event, throttle since it's expensive
for (var id in this._layers) {
this._handleHover(this._layers[id], e, point);
}
},
_handleHover: function (layer, e, point) {
if (!layer.options.interactive) { return; }
if (layer._containsPoint(point)) {
// if we just got inside the layer, fire mouseover
if (!layer._mouseInside) {
L.DomUtil.addClass(this._container, 'leaflet-interactive'); // change cursor
layer._fireMouseEvent(e, 'mouseover');
layer._mouseInside = true;
}
// fire mousemove
layer._fireMouseEvent(e);
} else if (layer._mouseInside) {
// if we're leaving the layer, fire mouseout
L.DomUtil.removeClass(this._container, 'leaflet-interactive');
layer._fireMouseEvent(e, 'mouseout');
layer._mouseInside = false;
}
},
// TODO _bringToFront & _bringToBack, pretty tricky
_bringToFront: L.Util.falseFn,
_bringToBack: L.Util.falseFn
});
L.Browser.canvas = (function () {
return !!document.createElement('canvas').getContext;
}());
L.canvas = function (options) {
return L.Browser.canvas ? new L.Canvas(options) : null;
};
L.Polyline.prototype._containsPoint = function (p, closed) {
var i, j, k, len, len2, part,
w = this._clickTolerance();
if (!this._pxBounds.contains(p)) { return false; }
// hit detection for polylines
for (i = 0, len = this._parts.length; i < len; i++) {
part = this._parts[i];
for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
if (!closed && (j === 0)) { continue; }
if (L.LineUtil.pointToSegmentDistance(p, part[k], part[j]) <= w) {
return true;
}
}
}
return false;
};
L.Polygon.prototype._containsPoint = function (p) {
var inside = false,
part, p1, p2, i, j, k, len, len2;
if (!this._pxBounds.contains(p)) { return false; }
// ray casting algorithm for detecting if point is in polygon
for (i = 0, len = this._parts.length; i < len; i++) {
part = this._parts[i];
for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
p1 = part[j];
p2 = part[k];
if (((p1.y > p.y) !== (p2.y > p.y)) && (p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) {
inside = !inside;
}
}
}
// also check if it's on polygon stroke
return inside || L.Polyline.prototype._containsPoint.call(this, p, true);
};
L.CircleMarker.prototype._containsPoint = function (p) {
return p.distanceTo(this._point) <= this._radius + this._clickTolerance();
};
/*
* L.GeoJSON turns any GeoJSON data into a Leaflet layer.
*/
L.GeoJSON = L.FeatureGroup.extend({
initialize: function (geojson, options) {
L.setOptions(this, options);
this._layers = {};
if (geojson) {
this.addData(geojson);
}
},
addData: function (geojson) {
var features = L.Util.isArray(geojson) ? geojson : geojson.features,
i, len, feature;
if (features) {
for (i = 0, len = features.length; i < len; i++) {
// only add this if geometry or geometries are set and not null
feature = features[i];
if (feature.geometries || feature.geometry || feature.features || feature.coordinates) {
this.addData(feature);
}
}
return this;
}
var options = this.options;
if (options.filter && !options.filter(geojson)) { return; }
var layer = L.GeoJSON.geometryToLayer(geojson, options);
layer.feature = L.GeoJSON.asFeature(geojson);
layer.defaultOptions = layer.options;
this.resetStyle(layer);
if (options.onEachFeature) {
options.onEachFeature(geojson, layer);
}
return this.addLayer(layer);
},
resetStyle: function (layer) {
// reset any custom styles
layer.options = layer.defaultOptions;
this._setLayerStyle(layer, this.options.style);
return this;
},
setStyle: function (style) {
return this.eachLayer(function (layer) {
this._setLayerStyle(layer, style);
}, this);
},
_setLayerStyle: function (layer, style) {
if (typeof style === 'function') {
style = style(layer.feature);
}
if (layer.setStyle) {
layer.setStyle(style);
}
}
});
L.extend(L.GeoJSON, {
geometryToLayer: function (geojson, options) {
var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson,
coords = geometry.coordinates,
layers = [],
pointToLayer = options && options.pointToLayer,
coordsToLatLng = options && options.coordsToLatLng || this.coordsToLatLng,
latlng, latlngs, i, len;
switch (geometry.type) {
case 'Point':
latlng = coordsToLatLng(coords);
return pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng);
case 'MultiPoint':
for (i = 0, len = coords.length; i < len; i++) {
latlng = coordsToLatLng(coords[i]);
layers.push(pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng));
}
return new L.FeatureGroup(layers);
case 'LineString':
case 'MultiLineString':
latlngs = this.coordsToLatLngs(coords, geometry.type === 'LineString' ? 0 : 1, coordsToLatLng);
return new L.Polyline(latlngs, options);
case 'Polygon':
case 'MultiPolygon':
latlngs = this.coordsToLatLngs(coords, geometry.type === 'Polygon' ? 1 : 2, coordsToLatLng);
return new L.Polygon(latlngs, options);
case 'GeometryCollection':
for (i = 0, len = geometry.geometries.length; i < len; i++) {
layers.push(this.geometryToLayer({
geometry: geometry.geometries[i],
type: 'Feature',
properties: geojson.properties
}, options));
}
return new L.FeatureGroup(layers);
default:
throw new Error('Invalid GeoJSON object.');
}
},
coordsToLatLng: function (coords) {
return new L.LatLng(coords[1], coords[0], coords[2]);
},
coordsToLatLngs: function (coords, levelsDeep, coordsToLatLng) {
var latlngs = [];
for (var i = 0, len = coords.length, latlng; i < len; i++) {
latlng = levelsDeep ?
this.coordsToLatLngs(coords[i], levelsDeep - 1, coordsToLatLng) :
(coordsToLatLng || this.coordsToLatLng)(coords[i]);
latlngs.push(latlng);
}
return latlngs;
},
latLngToCoords: function (latlng) {
return latlng.alt !== undefined ?
[latlng.lng, latlng.lat, latlng.alt] :
[latlng.lng, latlng.lat];
},
latLngsToCoords: function (latlngs, levelsDeep, closed) {
var coords = [];
for (var i = 0, len = latlngs.length; i < len; i++) {
coords.push(levelsDeep ?
L.GeoJSON.latLngsToCoords(latlngs[i], levelsDeep - 1, closed):
L.GeoJSON.latLngToCoords(latlngs[i]));
}
if (!levelsDeep && closed) {
coords.push(coords[0]);
}
return coords;
},
getFeature: function (layer, newGeometry) {
return layer.feature ?
L.extend({}, layer.feature, {geometry: newGeometry}) :
L.GeoJSON.asFeature(newGeometry);
},
asFeature: function (geoJSON) {
if (geoJSON.type === 'Feature') {
return geoJSON;
}
return {
type: 'Feature',
properties: {},
geometry: geoJSON
};
}
});
var PointToGeoJSON = {
toGeoJSON: function () {
return L.GeoJSON.getFeature(this, {
type: 'Point',
coordinates: L.GeoJSON.latLngToCoords(this.getLatLng())
});
}
};
L.Marker.include(PointToGeoJSON);
L.Circle.include(PointToGeoJSON);
L.CircleMarker.include(PointToGeoJSON);
L.Polyline.prototype.toGeoJSON = function () {
var multi = !this._flat(this._latlngs);
var coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 1 : 0);
return L.GeoJSON.getFeature(this, {
type: (multi ? 'Multi' : '') + 'LineString',
coordinates: coords
});
};
L.Polygon.prototype.toGeoJSON = function () {
var holes = !this._flat(this._latlngs),
multi = holes && !this._flat(this._latlngs[0]);
var coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 2 : holes ? 1 : 0, true);
if (!holes) {
coords = [coords];
}
return L.GeoJSON.getFeature(this, {
type: (multi ? 'Multi' : '') + 'Polygon',
coordinates: coords
});
};
L.LayerGroup.include({
toMultiPoint: function () {
var coords = [];
this.eachLayer(function (layer) {
coords.push(layer.toGeoJSON().geometry.coordinates);
});
return L.GeoJSON.getFeature(this, {
type: 'MultiPoint',
coordinates: coords
});
},
toGeoJSON: function () {
var type = this.feature && this.feature.geometry && this.feature.geometry.type;
if (type === 'MultiPoint') {
return this.toMultiPoint();
}
var isGeometryCollection = type === 'GeometryCollection',
jsons = [];
this.eachLayer(function (layer) {
if (layer.toGeoJSON) {
var json = layer.toGeoJSON();
jsons.push(isGeometryCollection ? json.geometry : L.GeoJSON.asFeature(json));
}
});
if (isGeometryCollection) {
return L.GeoJSON.getFeature(this, {
geometries: jsons,
type: 'GeometryCollection'
});
}
return {
type: 'FeatureCollection',
features: jsons
};
}
});
L.geoJson = function (geojson, options) {
return new L.GeoJSON(geojson, options);
};
/*
* L.DomEvent contains functions for working with DOM events.
* Inspired by John Resig, Dean Edwards and YUI addEvent implementations.
*/
var eventsKey = '_leaflet_events';
L.DomEvent = {
on: function (obj, types, fn, context) {
if (typeof types === 'object') {
for (var type in types) {
this._on(obj, type, types[type], fn);
}
} else {
types = L.Util.splitWords(types);
for (var i = 0, len = types.length; i < len; i++) {
this._on(obj, types[i], fn, context);
}
}
return this;
},
off: function (obj, types, fn, context) {
if (typeof types === 'object') {
for (var type in types) {
this._off(obj, type, types[type], fn);
}
} else {
types = L.Util.splitWords(types);
for (var i = 0, len = types.length; i < len; i++) {
this._off(obj, types[i], fn, context);
}
}
return this;
},
_on: function (obj, type, fn, context) {
var id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : '');
if (obj[eventsKey] && obj[eventsKey][id]) { return this; }
var handler = function (e) {
return fn.call(context || obj, e || window.event);
};
var originalHandler = handler;
if (L.Browser.pointer && type.indexOf('touch') === 0) {
this.addPointerListener(obj, type, handler, id);
} else if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener) {
this.addDoubleTapListener(obj, handler, id);
} else if ('addEventListener' in obj) {
if (type === 'mousewheel') {
obj.addEventListener('DOMMouseScroll', handler, false);
obj.addEventListener(type, handler, false);
} else if ((type === 'mouseenter') || (type === 'mouseleave')) {
handler = function (e) {
e = e || window.event;
if (!L.DomEvent._checkMouse(obj, e)) { return; }
return originalHandler(e);
};
obj.addEventListener(type === 'mouseenter' ? 'mouseover' : 'mouseout', handler, false);
} else {
if (type === 'click' && L.Browser.android) {
handler = function (e) {
return L.DomEvent._filterClick(e, originalHandler);
};
}
obj.addEventListener(type, handler, false);
}
} else if ('attachEvent' in obj) {
obj.attachEvent('on' + type, handler);
}
obj[eventsKey] = obj[eventsKey] || {};
obj[eventsKey][id] = handler;
return this;
},
_off: function (obj, type, fn, context) {
var id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : ''),
handler = obj[eventsKey] && obj[eventsKey][id];
if (!handler) { return this; }
if (L.Browser.pointer && type.indexOf('touch') === 0) {
this.removePointerListener(obj, type, id);
} else if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) {
this.removeDoubleTapListener(obj, id);
} else if ('removeEventListener' in obj) {
if (type === 'mousewheel') {
obj.removeEventListener('DOMMouseScroll', handler, false);
obj.removeEventListener(type, handler, false);
} else {
obj.removeEventListener(
type === 'mouseenter' ? 'mouseover' :
type === 'mouseleave' ? 'mouseout' : type, handler, false);
}
} else if ('detachEvent' in obj) {
obj.detachEvent('on' + type, handler);
}
obj[eventsKey][id] = null;
return this;
},
stopPropagation: function (e) {
if (e.stopPropagation) {
e.stopPropagation();
} else {
e.cancelBubble = true;
}
L.DomEvent._skipped(e);
return this;
},
disableScrollPropagation: function (el) {
return L.DomEvent.on(el, 'mousewheel MozMousePixelScroll', L.DomEvent.stopPropagation);
},
disableClickPropagation: function (el) {
var stop = L.DomEvent.stopPropagation;
L.DomEvent.on(el, L.Draggable.START.join(' '), stop);
return L.DomEvent.on(el, {
click: L.DomEvent._fakeStop,
dblclick: stop
});
},
preventDefault: function (e) {
if (e.preventDefault) {
e.preventDefault();
} else {
e.returnValue = false;
}
return this;
},
stop: function (e) {
return L.DomEvent
.preventDefault(e)
.stopPropagation(e);
},
getMousePosition: function (e, container) {
if (!container) {
return new L.Point(e.clientX, e.clientY);
}
var rect = container.getBoundingClientRect();
return new L.Point(
e.clientX - rect.left - container.clientLeft,
e.clientY - rect.top - container.clientTop);
},
getWheelDelta: function (e) {
var delta = 0;
if (e.wheelDelta) {
delta = e.wheelDelta / 120;
}
if (e.detail) {
delta = -e.detail / 3;
}
return delta;
},
_skipEvents: {},
_fakeStop: function (e) {
// fakes stopPropagation by setting a special event flag, checked/reset with L.DomEvent._skipped(e)
L.DomEvent._skipEvents[e.type] = true;
},
_skipped: function (e) {
var skipped = this._skipEvents[e.type];
// reset when checking, as it's only used in map container and propagates outside of the map
this._skipEvents[e.type] = false;
return skipped;
},
// check if element really left/entered the event target (for mouseenter/mouseleave)
_checkMouse: function (el, e) {
var related = e.relatedTarget;
if (!related) { return true; }
try {
while (related && (related !== el)) {
related = related.parentNode;
}
} catch (err) {
return false;
}
return (related !== el);
},
// this is a horrible workaround for a bug in Android where a single touch triggers two click events
_filterClick: function (e, handler) {
var timeStamp = (e.timeStamp || e.originalEvent.timeStamp),
elapsed = L.DomEvent._lastClick && (timeStamp - L.DomEvent._lastClick);
// are they closer together than 500ms yet more than 100ms?
// Android typically triggers them ~300ms apart while multiple listeners
// on the same event should be triggered far faster;
// or check if click is simulated on the element, and if it is, reject any non-simulated events
if ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) {
L.DomEvent.stop(e);
return;
}
L.DomEvent._lastClick = timeStamp;
return handler(e);
}
};
L.DomEvent.addListener = L.DomEvent.on;
L.DomEvent.removeListener = L.DomEvent.off;
/*
* L.Draggable allows you to add dragging capabilities to any element. Supports mobile devices too.
*/
L.Draggable = L.Evented.extend({
statics: {
START: L.Browser.touch ? ['touchstart', 'mousedown'] : ['mousedown'],
END: {
mousedown: 'mouseup',
touchstart: 'touchend',
pointerdown: 'touchend',
MSPointerDown: 'touchend'
},
MOVE: {
mousedown: 'mousemove',
touchstart: 'touchmove',
pointerdown: 'touchmove',
MSPointerDown: 'touchmove'
}
},
initialize: function (element, dragStartTarget) {
this._element = element;
this._dragStartTarget = dragStartTarget || element;
},
enable: function () {
if (this._enabled) { return; }
L.DomEvent.on(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this);
this._enabled = true;
},
disable: function () {
if (!this._enabled) { return; }
L.DomEvent.off(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this);
this._enabled = false;
this._moved = false;
},
_onDown: function (e) {
this._moved = false;
if (e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; }
L.DomEvent.stopPropagation(e);
if (L.Draggable._disabled) { return; }
L.DomUtil.disableImageDrag();
L.DomUtil.disableTextSelection();
if (this._moving) { return; }
this.fire('down');
var first = e.touches ? e.touches[0] : e;
this._startPoint = new L.Point(first.clientX, first.clientY);
this._startPos = this._newPos = L.DomUtil.getPosition(this._element);
L.DomEvent
.on(document, L.Draggable.MOVE[e.type], this._onMove, this)
.on(document, L.Draggable.END[e.type], this._onUp, this);
},
_onMove: function (e) {
if (e.touches && e.touches.length > 1) {
this._moved = true;
return;
}
var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e),
newPoint = new L.Point(first.clientX, first.clientY),
offset = newPoint.subtract(this._startPoint);
if (!offset.x && !offset.y) { return; }
if (L.Browser.touch && Math.abs(offset.x) + Math.abs(offset.y) < 3) { return; }
L.DomEvent.preventDefault(e);
if (!this._moved) {
this.fire('dragstart');
this._moved = true;
this._startPos = L.DomUtil.getPosition(this._element).subtract(offset);
L.DomUtil.addClass(document.body, 'leaflet-dragging');
this._lastTarget = e.target || e.srcElement;
L.DomUtil.addClass(this._lastTarget, 'leaflet-drag-target');
}
this._newPos = this._startPos.add(offset);
this._moving = true;
L.Util.cancelAnimFrame(this._animRequest);
this._animRequest = L.Util.requestAnimFrame(this._updatePosition, this, true, this._dragStartTarget);
},
_updatePosition: function () {
this.fire('predrag');
L.DomUtil.setPosition(this._element, this._newPos);
this.fire('drag');
},
_onUp: function () {
L.DomUtil.removeClass(document.body, 'leaflet-dragging');
if (this._lastTarget) {
L.DomUtil.removeClass(this._lastTarget, 'leaflet-drag-target');
this._lastTarget = null;
}
for (var i in L.Draggable.MOVE) {
L.DomEvent
.off(document, L.Draggable.MOVE[i], this._onMove, this)
.off(document, L.Draggable.END[i], this._onUp, this);
}
L.DomUtil.enableImageDrag();
L.DomUtil.enableTextSelection();
if (this._moved && this._moving) {
// ensure drag is not fired after dragend
L.Util.cancelAnimFrame(this._animRequest);
this.fire('dragend', {
distance: this._newPos.distanceTo(this._startPos)
});
}
this._moving = false;
}
});
/*
L.Handler is a base class for handler classes that are used internally to inject
interaction features like dragging to classes like Map and Marker.
*/
L.Handler = L.Class.extend({
initialize: function (map) {
this._map = map;
},
enable: function () {
if (this._enabled) { return; }
this._enabled = true;
this.addHooks();
},
disable: function () {
if (!this._enabled) { return; }
this._enabled = false;
this.removeHooks();
},
enabled: function () {
return !!this._enabled;
}
});
/*
* L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default.
*/
L.Map.mergeOptions({
dragging: true,
inertia: !L.Browser.android23,
inertiaDeceleration: 3400, // px/s^2
inertiaMaxSpeed: Infinity, // px/s
inertiaThreshold: L.Browser.touch ? 32 : 18, // ms
easeLinearity: 0.2,
// TODO refactor, move to CRS
worldCopyJump: false
});
L.Map.Drag = L.Handler.extend({
addHooks: function () {
if (!this._draggable) {
var map = this._map;
this._draggable = new L.Draggable(map._mapPane, map._container);
this._draggable.on({
down: this._onDown,
dragstart: this._onDragStart,
drag: this._onDrag,
dragend: this._onDragEnd
}, this);
if (map.options.worldCopyJump) {
this._draggable.on('predrag', this._onPreDrag, this);
map.on('viewreset', this._onViewReset, this);
map.whenReady(this._onViewReset, this);
}
}
this._draggable.enable();
},
removeHooks: function () {
this._draggable.disable();
},
moved: function () {
return this._draggable && this._draggable._moved;
},
_onDown: function () {
this._map.stop();
},
_onDragStart: function () {
var map = this._map;
map
.fire('movestart')
.fire('dragstart');
if (map.options.inertia) {
this._positions = [];
this._times = [];
}
},
_onDrag: function () {
if (this._map.options.inertia) {
var time = this._lastTime = +new Date(),
pos = this._lastPos = this._draggable._newPos;
this._positions.push(pos);
this._times.push(time);
if (time - this._times[0] > 100) {
this._positions.shift();
this._times.shift();
}
}
this._map
.fire('move')
.fire('drag');
},
_onViewReset: function () {
var pxCenter = this._map.getSize().divideBy(2),
pxWorldCenter = this._map.latLngToLayerPoint([0, 0]);
this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;
this._worldWidth = this._map.getPixelWorldBounds().getSize().x;
},
_onPreDrag: function () {
// TODO refactor to be able to adjust map pane position after zoom
var worldWidth = this._worldWidth,
halfWidth = Math.round(worldWidth / 2),
dx = this._initialWorldOffset,
x = this._draggable._newPos.x,
newX1 = (x - halfWidth + dx) % worldWidth + halfWidth - dx,
newX2 = (x + halfWidth + dx) % worldWidth - halfWidth - dx,
newX = Math.abs(newX1 + dx) < Math.abs(newX2 + dx) ? newX1 : newX2;
this._draggable._newPos.x = newX;
},
_onDragEnd: function (e) {
var map = this._map,
options = map.options,
delay = +new Date() - this._lastTime,
noInertia = !options.inertia || delay > options.inertiaThreshold || !this._positions[0];
map.fire('dragend', e);
if (noInertia) {
map.fire('moveend');
} else {
var direction = this._lastPos.subtract(this._positions[0]),
duration = (this._lastTime + delay - this._times[0]) / 1000,
ease = options.easeLinearity,
speedVector = direction.multiplyBy(ease / duration),
speed = speedVector.distanceTo([0, 0]),
limitedSpeed = Math.min(options.inertiaMaxSpeed, speed),
limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed),
decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease),
offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round();
if (!offset.x || !offset.y) {
map.fire('moveend');
} else {
offset = map._limitOffset(offset, map.options.maxBounds);
L.Util.requestAnimFrame(function () {
map.panBy(offset, {
duration: decelerationDuration,
easeLinearity: ease,
noMoveStart: true,
animate: true
});
});
}
}
}
});
L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag);
/*
* L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default.
*/
L.Map.mergeOptions({
doubleClickZoom: true
});
L.Map.DoubleClickZoom = L.Handler.extend({
addHooks: function () {
this._map.on('dblclick', this._onDoubleClick, this);
},
removeHooks: function () {
this._map.off('dblclick', this._onDoubleClick, this);
},
_onDoubleClick: function (e) {
var map = this._map,
oldZoom = map.getZoom(),
zoom = e.originalEvent.shiftKey ? Math.ceil(oldZoom) - 1 : Math.floor(oldZoom) + 1;
if (map.options.doubleClickZoom === 'center') {
map.setZoom(zoom);
} else {
map.setZoomAround(e.containerPoint, zoom);
}
}
});
L.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom);
/*
* L.Handler.ScrollWheelZoom is used by L.Map to enable mouse scroll wheel zoom on the map.
*/
L.Map.mergeOptions({
scrollWheelZoom: true,
wheelDebounceTime: 40
});
L.Map.ScrollWheelZoom = L.Handler.extend({
addHooks: function () {
L.DomEvent.on(this._map._container, {
mousewheel: this._onWheelScroll,
MozMousePixelScroll: L.DomEvent.preventDefault
}, this);
this._delta = 0;
},
removeHooks: function () {
L.DomEvent.off(this._map._container, {
mousewheel: this._onWheelScroll,
MozMousePixelScroll: L.DomEvent.preventDefault
}, this);
},
_onWheelScroll: function (e) {
var delta = L.DomEvent.getWheelDelta(e);
var debounce = this._map.options.wheelDebounceTime;
this._delta += delta;
this._lastMousePos = this._map.mouseEventToContainerPoint(e);
if (!this._startTime) {
this._startTime = +new Date();
}
var left = Math.max(debounce - (+new Date() - this._startTime), 0);
clearTimeout(this._timer);
this._timer = setTimeout(L.bind(this._performZoom, this), left);
L.DomEvent.stop(e);
},
_performZoom: function () {
var map = this._map,
delta = this._delta,
zoom = map.getZoom();
map.stop(); // stop panning and fly animations if any
delta = delta > 0 ? Math.ceil(delta) : Math.floor(delta);
delta = Math.max(Math.min(delta, 4), -4);
delta = map._limitZoom(zoom + delta) - zoom;
this._delta = 0;
this._startTime = null;
if (!delta) { return; }
if (map.options.scrollWheelZoom === 'center') {
map.setZoom(zoom + delta);
} else {
map.setZoomAround(this._lastMousePos, zoom + delta);
}
}
});
L.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom);
/*
* Extends the event handling code with double tap support for mobile browsers.
*/
L.extend(L.DomEvent, {
_touchstart: L.Browser.msPointer ? 'MSPointerDown' : L.Browser.pointer ? 'pointerdown' : 'touchstart',
_touchend: L.Browser.msPointer ? 'MSPointerUp' : L.Browser.pointer ? 'pointerup' : 'touchend',
// inspired by Zepto touch code by Thomas Fuchs
addDoubleTapListener: function (obj, handler, id) {
var last, touch,
doubleTap = false,
delay = 250,
trackedTouches = [];
function onTouchStart(e) {
var count;
if (L.Browser.pointer) {
trackedTouches.push(e.pointerId);
count = trackedTouches.length;
} else {
count = e.touches.length;
}
if (count > 1) { return; }
var now = Date.now(),
delta = now - (last || now);
touch = e.touches ? e.touches[0] : e;
doubleTap = (delta > 0 && delta <= delay);
last = now;
}
function onTouchEnd(e) {
if (L.Browser.pointer) {
var idx = trackedTouches.indexOf(e.pointerId);
if (idx === -1) { return; }
trackedTouches.splice(idx, 1);
}
if (doubleTap) {
if (L.Browser.pointer) {
// work around .type being readonly with MSPointer* events
var newTouch = {},
prop, i;
for (i in touch) {
prop = touch[i];
newTouch[i] = prop && prop.bind ? prop.bind(touch) : prop;
}
touch = newTouch;
}
touch.type = 'dblclick';
handler(touch);
last = null;
}
}
var pre = '_leaflet_',
touchstart = this._touchstart,
touchend = this._touchend;
obj[pre + touchstart + id] = onTouchStart;
obj[pre + touchend + id] = onTouchEnd;
// on pointer we need to listen on the document, otherwise a drag starting on the map and moving off screen
// will not come through to us, so we will lose track of how many touches are ongoing
var endElement = L.Browser.pointer ? document.documentElement : obj;
obj.addEventListener(touchstart, onTouchStart, false);
endElement.addEventListener(touchend, onTouchEnd, false);
if (L.Browser.pointer) {
endElement.addEventListener(L.DomEvent.POINTER_CANCEL, onTouchEnd, false);
}
return this;
},
removeDoubleTapListener: function (obj, id) {
var pre = '_leaflet_',
endElement = L.Browser.pointer ? document.documentElement : obj,
touchend = obj[pre + this._touchend + id];
obj.removeEventListener(this._touchstart, obj[pre + this._touchstart + id], false);
endElement.removeEventListener(this._touchend, touchend, false);
if (L.Browser.pointer) {
endElement.removeEventListener(L.DomEvent.POINTER_CANCEL, touchend, false);
}
return this;
}
});
/*
* Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices.
*/
L.extend(L.DomEvent, {
POINTER_DOWN: L.Browser.msPointer ? 'MSPointerDown' : 'pointerdown',
POINTER_MOVE: L.Browser.msPointer ? 'MSPointerMove' : 'pointermove',
POINTER_UP: L.Browser.msPointer ? 'MSPointerUp' : 'pointerup',
POINTER_CANCEL: L.Browser.msPointer ? 'MSPointerCancel' : 'pointercancel',
_pointers: {},
// Provides a touch events wrapper for (ms)pointer events.
// ref http://www.w3.org/TR/pointerevents/ https://www.w3.org/Bugs/Public/show_bug.cgi?id=22890
addPointerListener: function (obj, type, handler, id) {
if (type === 'touchstart') {
this._addPointerStart(obj, handler, id);
} else if (type === 'touchmove') {
this._addPointerMove(obj, handler, id);
} else if (type === 'touchend') {
this._addPointerEnd(obj, handler, id);
}
return this;
},
removePointerListener: function (obj, type, id) {
var handler = obj['_leaflet_' + type + id];
if (type === 'touchstart') {
obj.removeEventListener(this.POINTER_DOWN, handler, false);
} else if (type === 'touchmove') {
obj.removeEventListener(this.POINTER_MOVE, handler, false);
} else if (type === 'touchend') {
obj.removeEventListener(this.POINTER_UP, handler, false);
obj.removeEventListener(this.POINTER_CANCEL, handler, false);
}
return this;
},
_addPointerStart: function (obj, handler, id) {
var onDown = L.bind(function (e) {
L.DomEvent.preventDefault(e);
this._pointers[e.pointerId] = e;
this._handlePointer(e, handler);
}, this);
obj['_leaflet_touchstart' + id] = onDown;
obj.addEventListener(this.POINTER_DOWN, onDown, false);
// need to also listen for end events to keep the _pointers object accurate
if (!this._pointerDocListener) {
var removePointer = L.bind(function (e) {
delete this._pointers[e.pointerId];
}, this);
// we listen documentElement as any drags that end by moving the touch off the screen get fired there
document.documentElement.addEventListener(this.POINTER_UP, removePointer, false);
document.documentElement.addEventListener(this.POINTER_CANCEL, removePointer, false);
this._pointerDocListener = true;
}
},
_handlePointer: function (e, handler) {
e.touches = [];
for (var i in this._pointers) {
e.touches.push(this._pointers[i]);
}
e.changedTouches = [e];
handler(e);
},
_addPointerMove: function (obj, handler, id) {
var onMove = L.bind(function (e) {
// don't fire touch moves when mouse isn't down
if ((e.pointerType === e.MSPOINTER_TYPE_MOUSE || e.pointerType === 'mouse') && e.buttons === 0) { return; }
this._pointers[e.pointerId] = e;
this._handlePointer(e, handler);
}, this);
obj['_leaflet_touchmove' + id] = onMove;
obj.addEventListener(this.POINTER_MOVE, onMove, false);
},
_addPointerEnd: function (obj, handler, id) {
var onUp = L.bind(function (e) {
delete this._pointers[e.pointerId];
this._handlePointer(e, handler);
}, this);
obj['_leaflet_touchend' + id] = onUp;
obj.addEventListener(this.POINTER_UP, onUp, false);
obj.addEventListener(this.POINTER_CANCEL, onUp, false);
}
});
/*
* L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers.
*/
L.Map.mergeOptions({
touchZoom: L.Browser.touch && !L.Browser.android23,
bounceAtZoomLimits: true
});
L.Map.TouchZoom = L.Handler.extend({
addHooks: function () {
L.DomEvent.on(this._map._container, 'touchstart', this._onTouchStart, this);
},
removeHooks: function () {
L.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this);
},
_onTouchStart: function (e) {
var map = this._map;
if (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; }
var p1 = map.mouseEventToLayerPoint(e.touches[0]),
p2 = map.mouseEventToLayerPoint(e.touches[1]),
viewCenter = map._getCenterLayerPoint();
this._startCenter = p1.add(p2)._divideBy(2);
this._startDist = p1.distanceTo(p2);
this._moved = false;
this._zooming = true;
this._centerOffset = viewCenter.subtract(this._startCenter);
map.stop();
L.DomEvent
.on(document, 'touchmove', this._onTouchMove, this)
.on(document, 'touchend', this._onTouchEnd, this);
L.DomEvent.preventDefault(e);
},
_onTouchMove: function (e) {
if (!e.touches || e.touches.length !== 2 || !this._zooming) { return; }
var map = this._map,
p1 = map.mouseEventToLayerPoint(e.touches[0]),
p2 = map.mouseEventToLayerPoint(e.touches[1]);
this._scale = p1.distanceTo(p2) / this._startDist;
this._delta = p1._add(p2)._divideBy(2)._subtract(this._startCenter);
if (!map.options.bounceAtZoomLimits) {
var currentZoom = map.getScaleZoom(this._scale);
if ((currentZoom <= map.getMinZoom() && this._scale < 1) ||
(currentZoom >= map.getMaxZoom() && this._scale > 1)) { return; }
}
if (!this._moved) {
map
.fire('movestart')
.fire('zoomstart');
this._moved = true;
}
L.Util.cancelAnimFrame(this._animRequest);
this._animRequest = L.Util.requestAnimFrame(this._updateOnMove, this, true, this._map._container);
L.DomEvent.preventDefault(e);
},
_updateOnMove: function () {
var map = this._map;
if (map.options.touchZoom === 'center') {
this._center = map.getCenter();
} else {
this._center = map.layerPointToLatLng(this._getTargetCenter());
}
this._zoom = map.getScaleZoom(this._scale);
map._animateZoom(this._center, this._zoom);
},
_onTouchEnd: function () {
if (!this._moved || !this._zooming) {
this._zooming = false;
return;
}
this._zooming = false;
L.Util.cancelAnimFrame(this._animRequest);
L.DomEvent
.off(document, 'touchmove', this._onTouchMove)
.off(document, 'touchend', this._onTouchEnd);
var map = this._map,
oldZoom = map.getZoom(),
zoomDelta = this._zoom - oldZoom,
finalZoom = map._limitZoom(zoomDelta > 0 ? Math.ceil(this._zoom) : Math.floor(this._zoom));
map._animateZoom(this._center, finalZoom, true);
},
_getTargetCenter: function () {
var centerOffset = this._centerOffset.subtract(this._delta).divideBy(this._scale);
return this._startCenter.add(centerOffset);
}
});
L.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom);
/*
* L.Map.Tap is used to enable mobile hacks like quick taps and long hold.
*/
L.Map.mergeOptions({
tap: true,
tapTolerance: 15
});
L.Map.Tap = L.Handler.extend({
addHooks: function () {
L.DomEvent.on(this._map._container, 'touchstart', this._onDown, this);
},
removeHooks: function () {
L.DomEvent.off(this._map._container, 'touchstart', this._onDown, this);
},
_onDown: function (e) {
if (!e.touches) { return; }
L.DomEvent.preventDefault(e);
this._fireClick = true;
// don't simulate click or track longpress if more than 1 touch
if (e.touches.length > 1) {
this._fireClick = false;
clearTimeout(this._holdTimeout);
return;
}
var first = e.touches[0],
el = first.target;
this._startPos = this._newPos = new L.Point(first.clientX, first.clientY);
// if touching a link, highlight it
if (el.tagName && el.tagName.toLowerCase() === 'a') {
L.DomUtil.addClass(el, 'leaflet-active');
}
// simulate long hold but setting a timeout
this._holdTimeout = setTimeout(L.bind(function () {
if (this._isTapValid()) {
this._fireClick = false;
this._onUp();
this._simulateEvent('contextmenu', first);
}
}, this), 1000);
this._simulateEvent('mousedown', first);
L.DomEvent.on(document, {
touchmove: this._onMove,
touchend: this._onUp
}, this);
},
_onUp: function (e) {
clearTimeout(this._holdTimeout);
L.DomEvent.off(document, {
touchmove: this._onMove,
touchend: this._onUp
}, this);
if (this._fireClick && e && e.changedTouches) {
var first = e.changedTouches[0],
el = first.target;
if (el && el.tagName && el.tagName.toLowerCase() === 'a') {
L.DomUtil.removeClass(el, 'leaflet-active');
}
this._simulateEvent('mouseup', first);
// simulate click if the touch didn't move too much
if (this._isTapValid()) {
this._simulateEvent('click', first);
}
}
},
_isTapValid: function () {
return this._newPos.distanceTo(this._startPos) <= this._map.options.tapTolerance;
},
_onMove: function (e) {
var first = e.touches[0];
this._newPos = new L.Point(first.clientX, first.clientY);
},
_simulateEvent: function (type, e) {
var simulatedEvent = document.createEvent('MouseEvents');
simulatedEvent._simulated = true;
e.target._simulatedClick = true;
simulatedEvent.initMouseEvent(
type, true, true, window, 1,
e.screenX, e.screenY,
e.clientX, e.clientY,
false, false, false, false, 0, null);
e.target.dispatchEvent(simulatedEvent);
}
});
if (L.Browser.touch && !L.Browser.pointer) {
L.Map.addInitHook('addHandler', 'tap', L.Map.Tap);
}
/*
* L.Handler.ShiftDragZoom is used to add shift-drag zoom interaction to the map
* (zoom to a selected bounding box), enabled by default.
*/
L.Map.mergeOptions({
boxZoom: true
});
L.Map.BoxZoom = L.Handler.extend({
initialize: function (map) {
this._map = map;
this._container = map._container;
this._pane = map._panes.overlayPane;
},
addHooks: function () {
L.DomEvent.on(this._container, 'mousedown', this._onMouseDown, this);
},
removeHooks: function () {
L.DomEvent.off(this._container, 'mousedown', this._onMouseDown, this);
},
moved: function () {
return this._moved;
},
_onMouseDown: function (e) {
if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; }
this._moved = false;
L.DomUtil.disableTextSelection();
L.DomUtil.disableImageDrag();
this._startPoint = this._map.mouseEventToContainerPoint(e);
L.DomEvent.on(document, {
contextmenu: L.DomEvent.stop,
mousemove: this._onMouseMove,
mouseup: this._onMouseUp,
keydown: this._onKeyDown
}, this);
},
_onMouseMove: function (e) {
if (!this._moved) {
this._moved = true;
this._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._container);
L.DomUtil.addClass(this._container, 'leaflet-crosshair');
this._map.fire('boxzoomstart');
}
this._point = this._map.mouseEventToContainerPoint(e);
var bounds = new L.Bounds(this._point, this._startPoint),
size = bounds.getSize();
L.DomUtil.setPosition(this._box, bounds.min);
this._box.style.width = size.x + 'px';
this._box.style.height = size.y + 'px';
},
_finish: function () {
if (this._moved) {
L.DomUtil.remove(this._box);
L.DomUtil.removeClass(this._container, 'leaflet-crosshair');
}
L.DomUtil.enableTextSelection();
L.DomUtil.enableImageDrag();
L.DomEvent.off(document, {
contextmenu: L.DomEvent.stop,
mousemove: this._onMouseMove,
mouseup: this._onMouseUp,
keydown: this._onKeyDown
}, this);
},
_onMouseUp: function (e) {
if ((e.which !== 1) && (e.button !== 1)) { return false; }
this._finish();
if (!this._moved) { return; }
var bounds = new L.LatLngBounds(
this._map.containerPointToLatLng(this._startPoint),
this._map.containerPointToLatLng(this._point));
this._map
.fitBounds(bounds)
.fire('boxzoomend', {boxZoomBounds: bounds});
},
_onKeyDown: function (e) {
if (e.keyCode === 27) {
this._finish();
}
}
});
L.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom);
/*
* L.Map.Keyboard is handling keyboard interaction with the map, enabled by default.
*/
L.Map.mergeOptions({
keyboard: true,
keyboardPanOffset: 80,
keyboardZoomOffset: 1
});
L.Map.Keyboard = L.Handler.extend({
keyCodes: {
left: [37],
right: [39],
down: [40],
up: [38],
zoomIn: [187, 107, 61, 171],
zoomOut: [189, 109, 173]
},
initialize: function (map) {
this._map = map;
this._setPanOffset(map.options.keyboardPanOffset);
this._setZoomOffset(map.options.keyboardZoomOffset);
},
addHooks: function () {
var container = this._map._container;
// make the container focusable by tabbing
if (container.tabIndex === -1) {
container.tabIndex = '0';
}
L.DomEvent.on(container, {
focus: this._onFocus,
blur: this._onBlur,
mousedown: this._onMouseDown
}, this);
this._map.on({
focus: this._addHooks,
blur: this._removeHooks
}, this);
},
removeHooks: function () {
this._removeHooks();
L.DomEvent.off(this._map._container, {
focus: this._onFocus,
blur: this._onBlur,
mousedown: this._onMouseDown
}, this);
this._map.off({
focus: this._addHooks,
blur: this._removeHooks
}, this);
},
_onMouseDown: function () {
if (this._focused) { return; }
var body = document.body,
docEl = document.documentElement,
top = body.scrollTop || docEl.scrollTop,
left = body.scrollLeft || docEl.scrollLeft;
this._map._container.focus();
window.scrollTo(left, top);
},
_onFocus: function () {
this._focused = true;
this._map.fire('focus');
},
_onBlur: function () {
this._focused = false;
this._map.fire('blur');
},
_setPanOffset: function (pan) {
var keys = this._panKeys = {},
codes = this.keyCodes,
i, len;
for (i = 0, len = codes.left.length; i < len; i++) {
keys[codes.left[i]] = [-1 * pan, 0];
}
for (i = 0, len = codes.right.length; i < len; i++) {
keys[codes.right[i]] = [pan, 0];
}
for (i = 0, len = codes.down.length; i < len; i++) {
keys[codes.down[i]] = [0, pan];
}
for (i = 0, len = codes.up.length; i < len; i++) {
keys[codes.up[i]] = [0, -1 * pan];
}
},
_setZoomOffset: function (zoom) {
var keys = this._zoomKeys = {},
codes = this.keyCodes,
i, len;
for (i = 0, len = codes.zoomIn.length; i < len; i++) {
keys[codes.zoomIn[i]] = zoom;
}
for (i = 0, len = codes.zoomOut.length; i < len; i++) {
keys[codes.zoomOut[i]] = -zoom;
}
},
_addHooks: function () {
L.DomEvent.on(document, 'keydown', this._onKeyDown, this);
},
_removeHooks: function () {
L.DomEvent.off(document, 'keydown', this._onKeyDown, this);
},
_onKeyDown: function (e) {
if (e.altKey || e.ctrlKey || e.metaKey) { return; }
var key = e.keyCode,
map = this._map;
if (key in this._panKeys) {
if (map._panAnim && map._panAnim._inProgress) { return; }
map.panBy(this._panKeys[key]);
if (map.options.maxBounds) {
map.panInsideBounds(map.options.maxBounds);
}
} else if (key in this._zoomKeys) {
map.setZoom(map.getZoom() + this._zoomKeys[key]);
} else {
return;
}
L.DomEvent.stop(e);
}
});
L.Map.addInitHook('addHandler', 'keyboard', L.Map.Keyboard);
/*
* L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable.
*/
L.Handler.MarkerDrag = L.Handler.extend({
initialize: function (marker) {
this._marker = marker;
},
addHooks: function () {
var icon = this._marker._icon;
if (!this._draggable) {
this._draggable = new L.Draggable(icon, icon);
}
this._draggable.on({
dragstart: this._onDragStart,
drag: this._onDrag,
dragend: this._onDragEnd
}, this).enable();
L.DomUtil.addClass(icon, 'leaflet-marker-draggable');
},
removeHooks: function () {
this._draggable.off({
dragstart: this._onDragStart,
drag: this._onDrag,
dragend: this._onDragEnd
}, this).disable();
L.DomUtil.removeClass(this._marker._icon, 'leaflet-marker-draggable');
},
moved: function () {
return this._draggable && this._draggable._moved;
},
_onDragStart: function () {
this._marker
.closePopup()
.fire('movestart')
.fire('dragstart');
},
_onDrag: function () {
var marker = this._marker,
shadow = marker._shadow,
iconPos = L.DomUtil.getPosition(marker._icon),
latlng = marker._map.layerPointToLatLng(iconPos);
// update shadow position
if (shadow) {
L.DomUtil.setPosition(shadow, iconPos);
}
marker._latlng = latlng;
marker
.fire('move', {latlng: latlng})
.fire('drag');
},
_onDragEnd: function (e) {
this._marker
.fire('moveend')
.fire('dragend', e);
}
});
/*
* L.Control is a base class for implementing map controls. Handles positioning.
* All other controls extend from this class.
*/
L.Control = L.Class.extend({
options: {
position: 'topright'
},
initialize: function (options) {
L.setOptions(this, options);
},
getPosition: function () {
return this.options.position;
},
setPosition: function (position) {
var map = this._map;
if (map) {
map.removeControl(this);
}
this.options.position = position;
if (map) {
map.addControl(this);
}
return this;
},
getContainer: function () {
return this._container;
},
addTo: function (map) {
this._map = map;
var container = this._container = this.onAdd(map),
pos = this.getPosition(),
corner = map._controlCorners[pos];
L.DomUtil.addClass(container, 'leaflet-control');
if (pos.indexOf('bottom') !== -1) {
corner.insertBefore(container, corner.firstChild);
} else {
corner.appendChild(container);
}
return this;
},
remove: function () {
L.DomUtil.remove(this._container);
if (this.onRemove) {
this.onRemove(this._map);
}
this._map = null;
return this;
},
_refocusOnMap: function () {
if (this._map) {
this._map.getContainer().focus();
}
}
});
L.control = function (options) {
return new L.Control(options);
};
// adds control-related methods to L.Map
L.Map.include({
addControl: function (control) {
control.addTo(this);
return this;
},
removeControl: function (control) {
control.remove();
return this;
},
_initControlPos: function () {
var corners = this._controlCorners = {},
l = 'leaflet-',
container = this._controlContainer =
L.DomUtil.create('div', l + 'control-container', this._container);
function createCorner(vSide, hSide) {
var className = l + vSide + ' ' + l + hSide;
corners[vSide + hSide] = L.DomUtil.create('div', className, container);
}
createCorner('top', 'left');
createCorner('top', 'right');
createCorner('bottom', 'left');
createCorner('bottom', 'right');
},
_clearControlPos: function () {
L.DomUtil.remove(this._controlContainer);
}
});
/*
* L.Control.Zoom is used for the default zoom buttons on the map.
*/
L.Control.Zoom = L.Control.extend({
options: {
position: 'topleft',
zoomInText: '+',
zoomInTitle: 'Zoom in',
zoomOutText: '-',
zoomOutTitle: 'Zoom out'
},
onAdd: function (map) {
var zoomName = 'leaflet-control-zoom',
container = L.DomUtil.create('div', zoomName + ' leaflet-bar'),
options = this.options;
this._zoomInButton = this._createButton(options.zoomInText, options.zoomInTitle,
zoomName + '-in', container, this._zoomIn);
this._zoomOutButton = this._createButton(options.zoomOutText, options.zoomOutTitle,
zoomName + '-out', container, this._zoomOut);
this._updateDisabled();
map.on('zoomend zoomlevelschange', this._updateDisabled, this);
return container;
},
onRemove: function (map) {
map.off('zoomend zoomlevelschange', this._updateDisabled, this);
},
_zoomIn: function (e) {
this._map.zoomIn(e.shiftKey ? 3 : 1);
},
_zoomOut: function (e) {
this._map.zoomOut(e.shiftKey ? 3 : 1);
},
_createButton: function (html, title, className, container, fn) {
var link = L.DomUtil.create('a', className, container);
link.innerHTML = html;
link.href = '#';
link.title = title;
L.DomEvent
.on(link, 'mousedown dblclick', L.DomEvent.stopPropagation)
.on(link, 'click', L.DomEvent.stop)
.on(link, 'click', fn, this)
.on(link, 'click', this._refocusOnMap, this);
return link;
},
_updateDisabled: function () {
var map = this._map,
className = 'leaflet-disabled';
L.DomUtil.removeClass(this._zoomInButton, className);
L.DomUtil.removeClass(this._zoomOutButton, className);
if (map._zoom === map.getMinZoom()) {
L.DomUtil.addClass(this._zoomOutButton, className);
}
if (map._zoom === map.getMaxZoom()) {
L.DomUtil.addClass(this._zoomInButton, className);
}
}
});
L.Map.mergeOptions({
zoomControl: true
});
L.Map.addInitHook(function () {
if (this.options.zoomControl) {
this.zoomControl = new L.Control.Zoom();
this.addControl(this.zoomControl);
}
});
L.control.zoom = function (options) {
return new L.Control.Zoom(options);
};
/*
* L.Control.Attribution is used for displaying attribution on the map (added by default).
*/
L.Control.Attribution = L.Control.extend({
options: {
position: 'bottomright',
prefix: '<a href="http://leafletjs.com" title="A JS library for interactive maps">Leaflet</a>'
},
initialize: function (options) {
L.setOptions(this, options);
this._attributions = {};
},
onAdd: function (map) {
this._container = L.DomUtil.create('div', 'leaflet-control-attribution');
L.DomEvent.disableClickPropagation(this._container);
// TODO ugly, refactor
for (var i in map._layers) {
if (map._layers[i].getAttribution) {
this.addAttribution(map._layers[i].getAttribution());
}
}
this._update();
return this._container;
},
setPrefix: function (prefix) {
this.options.prefix = prefix;
this._update();
return this;
},
addAttribution: function (text) {
if (!text) { return; }
if (!this._attributions[text]) {
this._attributions[text] = 0;
}
this._attributions[text]++;
this._update();
return this;
},
removeAttribution: function (text) {
if (!text) { return; }
if (this._attributions[text]) {
this._attributions[text]--;
this._update();
}
return this;
},
_update: function () {
if (!this._map) { return; }
var attribs = [];
for (var i in this._attributions) {
if (this._attributions[i]) {
attribs.push(i);
}
}
var prefixAndAttribs = [];
if (this.options.prefix) {
prefixAndAttribs.push(this.options.prefix);
}
if (attribs.length) {
prefixAndAttribs.push(attribs.join(', '));
}
this._container.innerHTML = prefixAndAttribs.join(' | ');
}
});
L.Map.mergeOptions({
attributionControl: true
});
L.Map.addInitHook(function () {
if (this.options.attributionControl) {
this.attributionControl = (new L.Control.Attribution()).addTo(this);
}
});
L.control.attribution = function (options) {
return new L.Control.Attribution(options);
};
/*
* L.Control.Scale is used for displaying metric/imperial scale on the map.
*/
L.Control.Scale = L.Control.extend({
options: {
position: 'bottomleft',
maxWidth: 100,
metric: true,
imperial: true
// updateWhenIdle: false
},
onAdd: function (map) {
var className = 'leaflet-control-scale',
container = L.DomUtil.create('div', className),
options = this.options;
this._addScales(options, className + '-line', container);
map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
map.whenReady(this._update, this);
return container;
},
onRemove: function (map) {
map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
},
_addScales: function (options, className, container) {
if (options.metric) {
this._mScale = L.DomUtil.create('div', className, container);
}
if (options.imperial) {
this._iScale = L.DomUtil.create('div', className, container);
}
},
_update: function () {
var map = this._map,
y = map.getSize().y / 2;
var maxMeters = L.CRS.Earth.distance(
map.containerPointToLatLng([0, y]),
map.containerPointToLatLng([this.options.maxWidth, y]));
this._updateScales(maxMeters);
},
_updateScales: function (maxMeters) {
if (this.options.metric && maxMeters) {
this._updateMetric(maxMeters);
}
if (this.options.imperial && maxMeters) {
this._updateImperial(maxMeters);
}
},
_updateMetric: function (maxMeters) {
var meters = this._getRoundNum(maxMeters),
label = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km';
this._updateScale(this._mScale, label, meters / maxMeters);
},
_updateImperial: function (maxMeters) {
var maxFeet = maxMeters * 3.2808399,
maxMiles, miles, feet;
if (maxFeet > 5280) {
maxMiles = maxFeet / 5280;
miles = this._getRoundNum(maxMiles);
this._updateScale(this._iScale, miles + ' mi', miles / maxMiles);
} else {
feet = this._getRoundNum(maxFeet);
this._updateScale(this._iScale, feet + ' ft', feet / maxFeet);
}
},
_updateScale: function (scale, text, ratio) {
scale.style.width = Math.round(this.options.maxWidth * ratio) + 'px';
scale.innerHTML = text;
},
_getRoundNum: function (num) {
var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1),
d = num / pow10;
d = d >= 10 ? 10 :
d >= 5 ? 5 :
d >= 3 ? 3 :
d >= 2 ? 2 : 1;
return pow10 * d;
}
});
L.control.scale = function (options) {
return new L.Control.Scale(options);
};
/*
* L.Control.Layers is a control to allow users to switch between different layers on the map.
*/
L.Control.Layers = L.Control.extend({
options: {
collapsed: true,
position: 'topright',
autoZIndex: true
},
initialize: function (baseLayers, overlays, options) {
L.setOptions(this, options);
this._layers = {};
this._lastZIndex = 0;
this._handlingClick = false;
for (var i in baseLayers) {
this._addLayer(baseLayers[i], i);
}
for (i in overlays) {
this._addLayer(overlays[i], i, true);
}
},
onAdd: function () {
this._initLayout();
this._update();
return this._container;
},
addBaseLayer: function (layer, name) {
this._addLayer(layer, name);
return this._update();
},
addOverlay: function (layer, name) {
this._addLayer(layer, name, true);
return this._update();
},
removeLayer: function (layer) {
layer.off('add remove', this._onLayerChange, this);
delete this._layers[L.stamp(layer)];
return this._update();
},
_initLayout: function () {
var className = 'leaflet-control-layers',
container = this._container = L.DomUtil.create('div', className);
// makes this work on IE touch devices by stopping it from firing a mouseout event when the touch is released
container.setAttribute('aria-haspopup', true);
if (!L.Browser.touch) {
L.DomEvent
.disableClickPropagation(container)
.disableScrollPropagation(container);
} else {
L.DomEvent.on(container, 'click', L.DomEvent.stopPropagation);
}
var form = this._form = L.DomUtil.create('form', className + '-list');
if (this.options.collapsed) {
if (!L.Browser.android) {
L.DomEvent.on(container, {
mouseenter: this._expand,
mouseleave: this._collapse
}, this);
}
var link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container);
link.href = '#';
link.title = 'Layers';
if (L.Browser.touch) {
L.DomEvent
.on(link, 'click', L.DomEvent.stop)
.on(link, 'click', this._expand, this);
} else {
L.DomEvent.on(link, 'focus', this._expand, this);
}
// work around for Firefox Android issue https://github.com/Leaflet/Leaflet/issues/2033
L.DomEvent.on(form, 'click', function () {
setTimeout(L.bind(this._onInputClick, this), 0);
}, this);
this._map.on('click', this._collapse, this);
// TODO keyboard accessibility
} else {
this._expand();
}
this._baseLayersList = L.DomUtil.create('div', className + '-base', form);
this._separator = L.DomUtil.create('div', className + '-separator', form);
this._overlaysList = L.DomUtil.create('div', className + '-overlays', form);
container.appendChild(form);
},
_addLayer: function (layer, name, overlay) {
layer.on('add remove', this._onLayerChange, this);
var id = L.stamp(layer);
this._layers[id] = {
layer: layer,
name: name,
overlay: overlay
};
if (this.options.autoZIndex && layer.setZIndex) {
this._lastZIndex++;
layer.setZIndex(this._lastZIndex);
}
},
_update: function () {
if (!this._container) { return; }
L.DomUtil.empty(this._baseLayersList);
L.DomUtil.empty(this._overlaysList);
var baseLayersPresent, overlaysPresent, i, obj;
for (i in this._layers) {
obj = this._layers[i];
this._addItem(obj);
overlaysPresent = overlaysPresent || obj.overlay;
baseLayersPresent = baseLayersPresent || !obj.overlay;
}
this._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none';
return this;
},
_onLayerChange: function (e) {
if (!this._handlingClick) {
this._update();
}
var overlay = this._layers[L.stamp(e.target)].overlay;
var type = overlay ?
(e.type === 'add' ? 'overlayadd' : 'overlayremove') :
(e.type === 'add' ? 'baselayerchange' : null);
if (type) {
this._map.fire(type, e.target);
}
},
// IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe)
_createRadioElement: function (name, checked) {
var radioHtml = '<input type="radio" class="leaflet-control-layers-selector" name="' +
name + '"' + (checked ? ' checked="checked"' : '') + '/>';
var radioFragment = document.createElement('div');
radioFragment.innerHTML = radioHtml;
return radioFragment.firstChild;
},
_addItem: function (obj) {
var label = document.createElement('label'),
checked = this._map.hasLayer(obj.layer),
input;
if (obj.overlay) {
input = document.createElement('input');
input.type = 'checkbox';
input.className = 'leaflet-control-layers-selector';
input.defaultChecked = checked;
} else {
input = this._createRadioElement('leaflet-base-layers', checked);
}
input.layerId = L.stamp(obj.layer);
L.DomEvent.on(input, 'click', this._onInputClick, this);
var name = document.createElement('span');
name.innerHTML = ' ' + obj.name;
label.appendChild(input);
label.appendChild(name);
var container = obj.overlay ? this._overlaysList : this._baseLayersList;
container.appendChild(label);
return label;
},
_onInputClick: function () {
var inputs = this._form.getElementsByTagName('input'),
input, layer, hasLayer;
this._handlingClick = true;
for (var i = 0, len = inputs.length; i < len; i++) {
input = inputs[i];
layer = this._layers[input.layerId].layer;
hasLayer = this._map.hasLayer(layer);
if (input.checked && !hasLayer) {
this._map.addLayer(layer);
} else if (!input.checked && hasLayer) {
this._map.removeLayer(layer);
}
}
this._handlingClick = false;
this._refocusOnMap();
},
_expand: function () {
L.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded');
},
_collapse: function () {
L.DomUtil.removeClass(this._container, 'leaflet-control-layers-expanded');
}
});
L.control.layers = function (baseLayers, overlays, options) {
return new L.Control.Layers(baseLayers, overlays, options);
};
/*
* L.PosAnimation powers Leaflet pan animations internally.
*/
L.PosAnimation = L.Evented.extend({
run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number])
this.stop();
this._el = el;
this._inProgress = true;
this._duration = duration || 0.25;
this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2);
this._startPos = L.DomUtil.getPosition(el);
this._offset = newPos.subtract(this._startPos);
this._startTime = +new Date();
this.fire('start');
this._animate();
},
stop: function () {
if (!this._inProgress) { return; }
this._step(true);
this._complete();
},
_animate: function () {
// animation loop
this._animId = L.Util.requestAnimFrame(this._animate, this);
this._step();
},
_step: function (round) {
var elapsed = (+new Date()) - this._startTime,
duration = this._duration * 1000;
if (elapsed < duration) {
this._runFrame(this._easeOut(elapsed / duration), round);
} else {
this._runFrame(1);
this._complete();
}
},
_runFrame: function (progress, round) {
var pos = this._startPos.add(this._offset.multiplyBy(progress));
if (round) {
pos._round();
}
L.DomUtil.setPosition(this._el, pos);
this.fire('step');
},
_complete: function () {
L.Util.cancelAnimFrame(this._animId);
this._inProgress = false;
this.fire('end');
},
_easeOut: function (t) {
return 1 - Math.pow(1 - t, this._easeOutPower);
}
});
/*
* Extends L.Map to handle panning animations.
*/
L.Map.include({
setView: function (center, zoom, options) {
zoom = zoom === undefined ? this._zoom : this._limitZoom(zoom);
center = this._limitCenter(L.latLng(center), zoom, this.options.maxBounds);
options = options || {};
this.stop();
if (this._loaded && !options.reset && options !== true) {
if (options.animate !== undefined) {
options.zoom = L.extend({animate: options.animate}, options.zoom);
options.pan = L.extend({animate: options.animate}, options.pan);
}
// try animating pan or zoom
var animated = (this._zoom !== zoom) ?
this._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) :
this._tryAnimatedPan(center, options.pan);
if (animated) {
// prevent resize handler call, the view will refresh after animation anyway
clearTimeout(this._sizeTimer);
return this;
}
}
// animation didn't start, just reset the map view
this._resetView(center, zoom);
return this;
},
panBy: function (offset, options) {
offset = L.point(offset).round();
options = options || {};
if (!offset.x && !offset.y) {
return this;
}
//If we pan too far then chrome gets issues with tiles
// and makes them disappear or appear in the wrong place (slightly offset) #2602
if (options.animate !== true && !this.getSize().contains(offset)) {
return this._resetView(this.unproject(this.project(this.getCenter()).add(offset)), this.getZoom());
}
if (!this._panAnim) {
this._panAnim = new L.PosAnimation();
this._panAnim.on({
'step': this._onPanTransitionStep,
'end': this._onPanTransitionEnd
}, this);
}
// don't fire movestart if animating inertia
if (!options.noMoveStart) {
this.fire('movestart');
}
// animate pan unless animate: false specified
if (options.animate !== false) {
L.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim');
var newPos = this._getMapPanePos().subtract(offset);
this._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity);
} else {
this._rawPanBy(offset);
this.fire('move').fire('moveend');
}
return this;
},
_onPanTransitionStep: function () {
this.fire('move');
},
_onPanTransitionEnd: function () {
L.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim');
this.fire('moveend');
},
_tryAnimatedPan: function (center, options) {
// difference between the new and current centers in pixels
var offset = this._getCenterOffset(center)._floor();
// don't animate too far unless animate: true specified in options
if ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; }
this.panBy(offset, options);
return true;
}
});
/*
* Extends L.Map to handle zoom animations.
*/
L.Map.mergeOptions({
zoomAnimation: true,
zoomAnimationThreshold: 4
});
var zoomAnimated = L.DomUtil.TRANSITION && L.Browser.any3d && !L.Browser.mobileOpera;
if (zoomAnimated) {
L.Map.addInitHook(function () {
// don't animate on browsers without hardware-accelerated transitions or old Android/Opera
this._zoomAnimated = this.options.zoomAnimation;
// zoom transitions run with the same duration for all layers, so if one of transitionend events
// happens after starting zoom animation (propagating to the map pane), we know that it ended globally
if (this._zoomAnimated) {
this._createAnimProxy();
L.DomEvent.on(this._proxy, L.DomUtil.TRANSITION_END, this._catchTransitionEnd, this);
}
});
}
L.Map.include(!zoomAnimated ? {} : {
_createAnimProxy: function () {
var proxy = this._proxy = L.DomUtil.create('div', 'leaflet-proxy leaflet-zoom-animated');
this._panes.mapPane.appendChild(proxy);
this.on('zoomanim', function (e) {
L.DomUtil.setTransform(proxy, this.project(e.center, e.zoom), this.getZoomScale(e.zoom, 1));
}, this);
this.on('load moveend', function () {
var c = this.getCenter(),
z = this.getZoom();
L.DomUtil.setTransform(proxy, this.project(c, z), this.getZoomScale(z, 1));
}, this);
},
_catchTransitionEnd: function (e) {
if (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) {
this._onZoomTransitionEnd();
}
},
_nothingToAnimate: function () {
return !this._container.getElementsByClassName('leaflet-zoom-animated').length;
},
_tryAnimatedZoom: function (center, zoom, options) {
if (this._animatingZoom) { return true; }
options = options || {};
// don't animate if disabled, not supported or zoom difference is too large
if (!this._zoomAnimated || options.animate === false || this._nothingToAnimate() ||
Math.abs(zoom - this._zoom) > this.options.zoomAnimationThreshold) { return false; }
// offset is the pixel coords of the zoom origin relative to the current center
var scale = this.getZoomScale(zoom),
offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale);
// don't animate if the zoom origin isn't within one screen from the current center, unless forced
if (options.animate !== true && !this.getSize().contains(offset)) { return false; }
L.Util.requestAnimFrame(function () {
this
.fire('movestart')
.fire('zoomstart')
._animateZoom(center, zoom, true);
}, this);
return true;
},
_animateZoom: function (center, zoom, startAnim) {
if (startAnim) {
this._animatingZoom = true;
// remember what center/zoom to set after animation
this._animateToCenter = center;
this._animateToZoom = zoom;
// disable any dragging during animation
if (L.Draggable) {
L.Draggable._disabled = true;
}
L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim');
}
this.fire('zoomanim', {
center: center,
zoom: zoom,
scale: this.getZoomScale(zoom),
origin: this.latLngToLayerPoint(center),
offset: this._getCenterOffset(center).multiplyBy(-1)
});
},
_onZoomTransitionEnd: function () {
this._animatingZoom = false;
L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim');
this._resetView(this._animateToCenter, this._animateToZoom, true, true);
if (L.Draggable) {
L.Draggable._disabled = false;
}
}
});
L.Map.include({
flyTo: function (targetCenter, targetZoom) {
this.stop();
var from = this.project(this.getCenter()),
to = this.project(targetCenter),
size = this.getSize(),
startZoom = this._zoom;
targetZoom = targetZoom === undefined ? startZoom : targetZoom;
var w0 = Math.max(size.x, size.y),
w1 = w0 * this.getZoomScale(startZoom, targetZoom),
u1 = to.distanceTo(from),
rho = 1.42,
rho2 = rho * rho;
function r(i) {
var b = (w1 * w1 - w0 * w0 + (i ? -1 : 1) * rho2 * rho2 * u1 * u1) / (2 * (i ? w1 : w0) * rho2 * u1);
return Math.log(Math.sqrt(b * b + 1) - b);
}
function sinh(n) { return (Math.exp(n) - Math.exp(-n)) / 2; }
function cosh(n) { return (Math.exp(n) + Math.exp(-n)) / 2; }
function tanh(n) { return sinh(n) / cosh(n); }
var r0 = r(0);
function w(s) { return w0 * (cosh(r0) / cosh(r0 + rho * s)); }
function u(s) { return w0 * (cosh(r0) * tanh(r0 + rho * s) - sinh(r0)) / rho2; }
function easeOut(t) { return 1 - Math.pow(1 - t, 1.5); }
var start = Date.now(),
S = (r(1) - r0) / rho,
duration = 1000 * S * 0.8;
function frame() {
var t = (Date.now() - start) / duration,
s = easeOut(t) * S;
if (t <= 1) {
this._flyToFrame = L.Util.requestAnimFrame(frame, this);
this._resetView(
this.unproject(from.add(to.subtract(from).multiplyBy(u(s) / u1)), startZoom),
this.getScaleZoom(w0 / w(s), startZoom), true, true);
} else {
this._resetView(targetCenter, targetZoom, true, true);
}
}
this.fire('zoomstart');
frame.call(this);
}
});
/*
* Provides L.Map with convenient shortcuts for using browser geolocation features.
*/
L.Map.include({
_defaultLocateOptions: {
timeout: 10000,
watch: false
// setView: false
// maxZoom: <Number>
// maximumAge: 0
// enableHighAccuracy: false
},
locate: function (/*Object*/ options) {
options = this._locateOptions = L.extend(this._defaultLocateOptions, options);
if (!navigator.geolocation) {
this._handleGeolocationError({
code: 0,
message: 'Geolocation not supported.'
});
return this;
}
var onResponse = L.bind(this._handleGeolocationResponse, this),
onError = L.bind(this._handleGeolocationError, this);
if (options.watch) {
this._locationWatchId =
navigator.geolocation.watchPosition(onResponse, onError, options);
} else {
navigator.geolocation.getCurrentPosition(onResponse, onError, options);
}
return this;
},
stopLocate: function () {
if (navigator.geolocation) {
navigator.geolocation.clearWatch(this._locationWatchId);
}
if (this._locateOptions) {
this._locateOptions.setView = false;
}
return this;
},
_handleGeolocationError: function (error) {
var c = error.code,
message = error.message ||
(c === 1 ? 'permission denied' :
(c === 2 ? 'position unavailable' : 'timeout'));
if (this._locateOptions.setView && !this._loaded) {
this.fitWorld();
}
this.fire('locationerror', {
code: c,
message: 'Geolocation error: ' + message + '.'
});
},
_handleGeolocationResponse: function (pos) {
var lat = pos.coords.latitude,
lng = pos.coords.longitude,
latlng = new L.LatLng(lat, lng),
latAccuracy = 180 * pos.coords.accuracy / 40075017,
lngAccuracy = latAccuracy / Math.cos((Math.PI / 180) * lat),
bounds = L.latLngBounds(
[lat - latAccuracy, lng - lngAccuracy],
[lat + latAccuracy, lng + lngAccuracy]),
options = this._locateOptions;
if (options.setView) {
var zoom = this.getBoundsZoom(bounds);
this.setView(latlng, options.maxZoom ? Math.min(zoom, options.maxZoom) : zoom);
}
var data = {
latlng: latlng,
bounds: bounds,
timestamp: pos.timestamp
};
for (var i in pos.coords) {
if (typeof pos.coords[i] === 'number') {
data[i] = pos.coords[i];
}
}
this.fire('locationfound', data);
}
});
}(window, document));
/*
Leaflet.draw, a plugin that adds drawing and editing tools to Leaflet powered maps.
(c) 2012-2013, Jacob Toye, Smartrak
https://github.com/Leaflet/Leaflet.draw
http://leafletjs.com
https://github.com/jacobtoye
*/
(function (window, document, undefined) {/*
* Leaflet.draw assumes that you have already included the Leaflet library.
*/
L.drawVersion = '0.2.4-dev';
L.drawLocal = {
draw: {
toolbar: {
actions: {
title: 'Cancel drawing',
text: 'Cancel'
},
undo: {
title: 'Delete last point drawn',
text: 'Delete last point'
},
buttons: {
polyline: 'Draw a polyline',
polygon: 'Draw a polygon',
rectangle: 'Draw a rectangle',
circle: 'Draw a circle',
marker: 'Draw a marker'
}
},
handlers: {
circle: {
tooltip: {
start: 'Click and drag to draw circle.'
}
},
marker: {
tooltip: {
start: 'Click map to place marker.'
}
},
polygon: {
tooltip: {
start: 'Click to start drawing shape.',
cont: 'Click to continue drawing shape.',
end: 'Click first point to close this shape.'
}
},
polyline: {
error: '<strong>Error:</strong> shape edges cannot cross!',
tooltip: {
start: 'Click to start drawing line.',
cont: 'Click to continue drawing line.',
end: 'Click last point to finish line.'
}
},
rectangle: {
tooltip: {
start: 'Click and drag to draw rectangle.'
}
},
simpleshape: {
tooltip: {
end: 'Release mouse to finish drawing.'
}
}
}
},
edit: {
toolbar: {
actions: {
save: {
title: 'Save changes.',
text: 'Save'
},
cancel: {
title: 'Cancel editing, discards all changes.',
text: 'Cancel'
}
},
buttons: {
edit: 'Edit layers.',
editDisabled: 'No layers to edit.',
remove: 'Delete layers.',
removeDisabled: 'No layers to delete.'
}
},
handlers: {
edit: {
tooltip: {
text: 'Drag handles, or marker to edit feature.',
subtext: 'Click cancel to undo changes.'
}
},
remove: {
tooltip: {
text: 'Click on a feature to remove'
}
}
}
}
};
L.Draw = {};
L.Draw.Feature = L.Handler.extend({
includes: L.Mixin.Events,
initialize: function (map, options) {
this._map = map;
this._container = map._container;
this._overlayPane = map._panes.overlayPane;
this._popupPane = map._panes.popupPane;
// Merge default shapeOptions options with custom shapeOptions
if (options && options.shapeOptions) {
options.shapeOptions = L.Util.extend({}, this.options.shapeOptions, options.shapeOptions);
}
L.setOptions(this, options);
},
enable: function () {
if (this._enabled) { return; }
L.Handler.prototype.enable.call(this);
this.fire('enabled', { handler: this.type });
this._map.fire('draw:drawstart', { layerType: this.type });
},
disable: function () {
if (!this._enabled) { return; }
L.Handler.prototype.disable.call(this);
this._map.fire('draw:drawstop', { layerType: this.type });
this.fire('disabled', { handler: this.type });
},
addHooks: function () {
var map = this._map;
if (map) {
L.DomUtil.disableTextSelection();
map.getContainer().focus();
this._tooltip = new L.Tooltip(this._map);
L.DomEvent.on(this._container, 'keyup', this._cancelDrawing, this);
}
},
removeHooks: function () {
if (this._map) {
L.DomUtil.enableTextSelection();
this._tooltip.dispose();
this._tooltip = null;
L.DomEvent.off(this._container, 'keyup', this._cancelDrawing, this);
}
},
setOptions: function (options) {
L.setOptions(this, options);
},
_fireCreatedEvent: function (layer) {
this._map.fire('draw:created', { layer: layer, layerType: this.type });
},
// Cancel drawing when the escape key is pressed
_cancelDrawing: function (e) {
if (e.keyCode === 27) {
this.disable();
}
}
});
L.Draw.Polyline = L.Draw.Feature.extend({
statics: {
TYPE: 'polyline'
},
Poly: L.Polyline,
options: {
allowIntersection: true,
repeatMode: false,
drawError: {
color: '#b00b00',
timeout: 2500
},
icon: new L.DivIcon({
iconSize: new L.Point(8, 8),
className: 'leaflet-div-icon leaflet-editing-icon'
}),
guidelineDistance: 20,
maxGuideLineLength: 4000,
shapeOptions: {
stroke: true,
color: '#f06eaa',
weight: 4,
opacity: 0.5,
fill: false,
clickable: true
},
metric: true, // Whether to use the metric meaurement system or imperial
showLength: true, // Whether to display distance in the tooltip
zIndexOffset: 2000 // This should be > than the highest z-index any map layers
},
initialize: function (map, options) {
// Need to set this here to ensure the correct message is used.
this.options.drawError.message = L.drawLocal.draw.handlers.polyline.error;
// Merge default drawError options with custom options
if (options && options.drawError) {
options.drawError = L.Util.extend({}, this.options.drawError, options.drawError);
}
// Save the type so super can fire, need to do this as cannot do this.TYPE :(
this.type = L.Draw.Polyline.TYPE;
L.Draw.Feature.prototype.initialize.call(this, map, options);
},
addHooks: function () {
L.Draw.Feature.prototype.addHooks.call(this);
if (this._map) {
this._markers = [];
this._markerGroup = new L.LayerGroup();
this._map.addLayer(this._markerGroup);
this._poly = new L.Polyline([], this.options.shapeOptions);
this._tooltip.updateContent(this._getTooltipText());
// Make a transparent marker that will used to catch click events. These click
// events will create the vertices. We need to do this so we can ensure that
// we can create vertices over other map layers (markers, vector layers). We
// also do not want to trigger any click handlers of objects we are clicking on
// while drawing.
if (!this._mouseMarker) {
this._mouseMarker = L.marker(this._map.getCenter(), {
icon: L.divIcon({
className: 'leaflet-mouse-marker',
iconAnchor: [20, 20],
iconSize: [40, 40]
}),
opacity: 0,
zIndexOffset: this.options.zIndexOffset
});
}
this._mouseMarker
.on('mousedown', this._onMouseDown, this)
.addTo(this._map);
this._map
.on('mousemove', this._onMouseMove, this)
.on('mouseup', this._onMouseUp, this)
.on('zoomend', this._onZoomEnd, this);
}
},
removeHooks: function () {
L.Draw.Feature.prototype.removeHooks.call(this);
this._clearHideErrorTimeout();
this._cleanUpShape();
// remove markers from map
this._map.removeLayer(this._markerGroup);
delete this._markerGroup;
delete this._markers;
this._map.removeLayer(this._poly);
delete this._poly;
this._mouseMarker
.off('mousedown', this._onMouseDown, this)
.off('mouseup', this._onMouseUp, this);
this._map.removeLayer(this._mouseMarker);
delete this._mouseMarker;
// clean up DOM
this._clearGuides();
this._map
.off('mousemove', this._onMouseMove, this)
.off('zoomend', this._onZoomEnd, this);
},
deleteLastVertex: function () {
if (this._markers.length <= 1) {
return;
}
var lastMarker = this._markers.pop(),
poly = this._poly,
latlng = this._poly.spliceLatLngs(poly.getLatLngs().length - 1, 1)[0];
this._markerGroup.removeLayer(lastMarker);
if (poly.getLatLngs().length < 2) {
this._map.removeLayer(poly);
}
this._vertexChanged(latlng, false);
},
addVertex: function (latlng) {
var markersLength = this._markers.length;
if (markersLength > 0 && !this.options.allowIntersection && this._poly.newLatLngIntersects(latlng)) {
this._showErrorTooltip();
return;
}
else if (this._errorShown) {
this._hideErrorTooltip();
}
this._markers.push(this._createMarker(latlng));
this._poly.addLatLng(latlng);
if (this._poly.getLatLngs().length === 2) {
this._map.addLayer(this._poly);
}
this._vertexChanged(latlng, true);
},
_finishShape: function () {
var intersects = this._poly.newLatLngIntersects(this._poly.getLatLngs()[0], true);
if ((!this.options.allowIntersection && intersects) || !this._shapeIsValid()) {
this._showErrorTooltip();
return;
}
this._fireCreatedEvent();
this.disable();
if (this.options.repeatMode) {
this.enable();
}
},
//Called to verify the shape is valid when the user tries to finish it
//Return false if the shape is not valid
_shapeIsValid: function () {
return true;
},
_onZoomEnd: function () {
this._updateGuide();
},
_onMouseMove: function (e) {
var newPos = e.layerPoint,
latlng = e.latlng;
// Save latlng
// should this be moved to _updateGuide() ?
this._currentLatLng = latlng;
this._updateTooltip(latlng);
// Update the guide line
this._updateGuide(newPos);
// Update the mouse marker position
this._mouseMarker.setLatLng(latlng);
L.DomEvent.preventDefault(e.originalEvent);
},
_vertexChanged: function (latlng, added) {
this._updateFinishHandler();
this._updateRunningMeasure(latlng, added);
this._clearGuides();
this._updateTooltip();
},
_onMouseDown: function (e) {
var originalEvent = e.originalEvent;
this._mouseDownOrigin = L.point(originalEvent.clientX, originalEvent.clientY);
},
_onMouseUp: function (e) {
if (this._mouseDownOrigin) {
// We detect clicks within a certain tolerance, otherwise let it
// be interpreted as a drag by the map
var distance = L.point(e.originalEvent.clientX, e.originalEvent.clientY)
.distanceTo(this._mouseDownOrigin);
if (Math.abs(distance) < 9 * (window.devicePixelRatio || 1)) {
this.addVertex(e.latlng);
}
}
this._mouseDownOrigin = null;
},
_updateFinishHandler: function () {
var markerCount = this._markers.length;
// The last marker should have a click handler to close the polyline
if (markerCount > 1) {
this._markers[markerCount - 1].on('click', this._finishShape, this);
}
// Remove the old marker click handler (as only the last point should close the polyline)
if (markerCount > 2) {
this._markers[markerCount - 2].off('click', this._finishShape, this);
}
},
_createMarker: function (latlng) {
var marker = new L.Marker(latlng, {
icon: this.options.icon,
zIndexOffset: this.options.zIndexOffset * 2
});
this._markerGroup.addLayer(marker);
return marker;
},
_updateGuide: function (newPos) {
var markerCount = this._markers.length;
if (markerCount > 0) {
newPos = newPos || this._map.latLngToLayerPoint(this._currentLatLng);
// draw the guide line
this._clearGuides();
this._drawGuide(
this._map.latLngToLayerPoint(this._markers[markerCount - 1].getLatLng()),
newPos
);
}
},
_updateTooltip: function (latLng) {
var text = this._getTooltipText();
if (latLng) {
this._tooltip.updatePosition(latLng);
}
if (!this._errorShown) {
this._tooltip.updateContent(text);
}
},
_drawGuide: function (pointA, pointB) {
var length = Math.floor(Math.sqrt(Math.pow((pointB.x - pointA.x), 2) + Math.pow((pointB.y - pointA.y), 2))),
guidelineDistance = this.options.guidelineDistance,
maxGuideLineLength = this.options.maxGuideLineLength,
// Only draw a guideline with a max length
i = length > maxGuideLineLength ? length - maxGuideLineLength : guidelineDistance,
fraction,
dashPoint,
dash;
//create the guides container if we haven't yet
if (!this._guidesContainer) {
this._guidesContainer = L.DomUtil.create('div', 'leaflet-draw-guides', this._overlayPane);
}
//draw a dash every GuildeLineDistance
for (; i < length; i += this.options.guidelineDistance) {
//work out fraction along line we are
fraction = i / length;
//calculate new x,y point
dashPoint = {
x: Math.floor((pointA.x * (1 - fraction)) + (fraction * pointB.x)),
y: Math.floor((pointA.y * (1 - fraction)) + (fraction * pointB.y))
};
//add guide dash to guide container
dash = L.DomUtil.create('div', 'leaflet-draw-guide-dash', this._guidesContainer);
dash.style.backgroundColor =
!this._errorShown ? this.options.shapeOptions.color : this.options.drawError.color;
L.DomUtil.setPosition(dash, dashPoint);
}
},
_updateGuideColor: function (color) {
if (this._guidesContainer) {
for (var i = 0, l = this._guidesContainer.childNodes.length; i < l; i++) {
this._guidesContainer.childNodes[i].style.backgroundColor = color;
}
}
},
// removes all child elements (guide dashes) from the guides container
_clearGuides: function () {
if (this._guidesContainer) {
while (this._guidesContainer.firstChild) {
this._guidesContainer.removeChild(this._guidesContainer.firstChild);
}
}
},
_getTooltipText: function () {
var showLength = this.options.showLength,
labelText, distanceStr;
if (this._markers.length === 0) {
labelText = {
text: L.drawLocal.draw.handlers.polyline.tooltip.start
};
} else {
distanceStr = showLength ? this._getMeasurementString() : '';
if (this._markers.length === 1) {
labelText = {
text: L.drawLocal.draw.handlers.polyline.tooltip.cont,
subtext: distanceStr
};
} else {
labelText = {
text: L.drawLocal.draw.handlers.polyline.tooltip.end,
subtext: distanceStr
};
}
}
return labelText;
},
_updateRunningMeasure: function (latlng, added) {
var markersLength = this._markers.length,
previousMarkerIndex, distance;
if (this._markers.length === 1) {
this._measurementRunningTotal = 0;
} else {
previousMarkerIndex = markersLength - (added ? 2 : 1);
distance = latlng.distanceTo(this._markers[previousMarkerIndex].getLatLng());
this._measurementRunningTotal += distance * (added ? 1 : -1);
}
},
_getMeasurementString: function () {
var currentLatLng = this._currentLatLng,
previousLatLng = this._markers[this._markers.length - 1].getLatLng(),
distance;
// calculate the distance from the last fixed point to the mouse position
distance = this._measurementRunningTotal + currentLatLng.distanceTo(previousLatLng);
return L.GeometryUtil.readableDistance(distance, this.options.metric);
},
_showErrorTooltip: function () {
this._errorShown = true;
// Update tooltip
this._tooltip
.showAsError()
.updateContent({ text: this.options.drawError.message });
// Update shape
this._updateGuideColor(this.options.drawError.color);
this._poly.setStyle({ color: this.options.drawError.color });
// Hide the error after 2 seconds
this._clearHideErrorTimeout();
this._hideErrorTimeout = setTimeout(L.Util.bind(this._hideErrorTooltip, this), this.options.drawError.timeout);
},
_hideErrorTooltip: function () {
this._errorShown = false;
this._clearHideErrorTimeout();
// Revert tooltip
this._tooltip
.removeError()
.updateContent(this._getTooltipText());
// Revert shape
this._updateGuideColor(this.options.shapeOptions.color);
this._poly.setStyle({ color: this.options.shapeOptions.color });
},
_clearHideErrorTimeout: function () {
if (this._hideErrorTimeout) {
clearTimeout(this._hideErrorTimeout);
this._hideErrorTimeout = null;
}
},
_cleanUpShape: function () {
if (this._markers.length > 1) {
this._markers[this._markers.length - 1].off('click', this._finishShape, this);
}
},
_fireCreatedEvent: function () {
var poly = new this.Poly(this._poly.getLatLngs(), this.options.shapeOptions);
L.Draw.Feature.prototype._fireCreatedEvent.call(this, poly);
}
});
L.Draw.Polygon = L.Draw.Polyline.extend({
statics: {
TYPE: 'polygon'
},
Poly: L.Polygon,
options: {
showArea: false,
shapeOptions: {
stroke: true,
color: '#f06eaa',
weight: 4,
opacity: 0.5,
fill: true,
fillColor: null, //same as color by default
fillOpacity: 0.2,
clickable: true
}
},
initialize: function (map, options) {
L.Draw.Polyline.prototype.initialize.call(this, map, options);
// Save the type so super can fire, need to do this as cannot do this.TYPE :(
this.type = L.Draw.Polygon.TYPE;
},
_updateFinishHandler: function () {
var markerCount = this._markers.length;
// The first marker should have a click handler to close the polygon
if (markerCount === 1) {
this._markers[0].on('click', this._finishShape, this);
}
// Add and update the double click handler
if (markerCount > 2) {
this._markers[markerCount - 1].on('dblclick', this._finishShape, this);
// Only need to remove handler if has been added before
if (markerCount > 3) {
this._markers[markerCount - 2].off('dblclick', this._finishShape, this);
}
}
},
_getTooltipText: function () {
var text, subtext;
if (this._markers.length === 0) {
text = L.drawLocal.draw.handlers.polygon.tooltip.start;
} else if (this._markers.length < 3) {
text = L.drawLocal.draw.handlers.polygon.tooltip.cont;
} else {
text = L.drawLocal.draw.handlers.polygon.tooltip.end;
subtext = this._getMeasurementString();
}
return {
text: text,
subtext: subtext
};
},
_getMeasurementString: function () {
var area = this._area;
if (!area) {
return null;
}
return L.GeometryUtil.readableArea(area, this.options.metric);
},
_shapeIsValid: function () {
return this._markers.length >= 3;
},
_vertexChanged: function (latlng, added) {
var latLngs;
// Check to see if we should show the area
if (!this.options.allowIntersection && this.options.showArea) {
latLngs = this._poly.getLatLngs();
this._area = L.GeometryUtil.geodesicArea(latLngs);
}
L.Draw.Polyline.prototype._vertexChanged.call(this, latlng, added);
},
_cleanUpShape: function () {
var markerCount = this._markers.length;
if (markerCount > 0) {
this._markers[0].off('click', this._finishShape, this);
if (markerCount > 2) {
this._markers[markerCount - 1].off('dblclick', this._finishShape, this);
}
}
}
});
L.SimpleShape = {};
L.Draw.SimpleShape = L.Draw.Feature.extend({
options: {
repeatMode: false
},
initialize: function (map, options) {
this._endLabelText = L.drawLocal.draw.handlers.simpleshape.tooltip.end;
L.Draw.Feature.prototype.initialize.call(this, map, options);
},
addHooks: function () {
L.Draw.Feature.prototype.addHooks.call(this);
if (this._map) {
this._mapDraggable = this._map.dragging.enabled();
if (this._mapDraggable) {
this._map.dragging.disable();
}
//TODO refactor: move cursor to styles
this._container.style.cursor = 'crosshair';
this._tooltip.updateContent({ text: this._initialLabelText });
this._map
.on('mousedown', this._onMouseDown, this)
.on('mousemove', this._onMouseMove, this);
}
},
removeHooks: function () {
L.Draw.Feature.prototype.removeHooks.call(this);
if (this._map) {
if (this._mapDraggable) {
this._map.dragging.enable();
}
//TODO refactor: move cursor to styles
this._container.style.cursor = '';
this._map
.off('mousedown', this._onMouseDown, this)
.off('mousemove', this._onMouseMove, this);
L.DomEvent.off(document, 'mouseup', this._onMouseUp, this);
// If the box element doesn't exist they must not have moved the mouse, so don't need to destroy/return
if (this._shape) {
this._map.removeLayer(this._shape);
delete this._shape;
}
}
this._isDrawing = false;
},
_getTooltipText: function () {
return {
text: this._endLabelText
};
},
_onMouseDown: function (e) {
this._isDrawing = true;
this._startLatLng = e.latlng;
L.DomEvent
.on(document, 'mouseup', this._onMouseUp, this)
.preventDefault(e.originalEvent);
},
_onMouseMove: function (e) {
var latlng = e.latlng;
this._tooltip.updatePosition(latlng);
if (this._isDrawing) {
this._tooltip.updateContent(this._getTooltipText());
this._drawShape(latlng);
}
},
_onMouseUp: function () {
if (this._shape) {
this._fireCreatedEvent();
}
this.disable();
if (this.options.repeatMode) {
this.enable();
}
}
});
L.Draw.Rectangle = L.Draw.SimpleShape.extend({
statics: {
TYPE: 'rectangle'
},
options: {
shapeOptions: {
stroke: true,
color: '#f06eaa',
weight: 4,
opacity: 0.5,
fill: true,
fillColor: null, //same as color by default
fillOpacity: 0.2,
clickable: true
},
metric: true // Whether to use the metric meaurement system or imperial
},
initialize: function (map, options) {
// Save the type so super can fire, need to do this as cannot do this.TYPE :(
this.type = L.Draw.Rectangle.TYPE;
this._initialLabelText = L.drawLocal.draw.handlers.rectangle.tooltip.start;
L.Draw.SimpleShape.prototype.initialize.call(this, map, options);
},
_drawShape: function (latlng) {
if (!this._shape) {
this._shape = new L.Rectangle(new L.LatLngBounds(this._startLatLng, latlng), this.options.shapeOptions);
this._map.addLayer(this._shape);
} else {
this._shape.setBounds(new L.LatLngBounds(this._startLatLng, latlng));
}
},
_fireCreatedEvent: function () {
var rectangle = new L.Rectangle(this._shape.getBounds(), this.options.shapeOptions);
L.Draw.SimpleShape.prototype._fireCreatedEvent.call(this, rectangle);
},
_getTooltipText: function () {
var tooltipText = L.Draw.SimpleShape.prototype._getTooltipText.call(this),
shape = this._shape,
latLngs, area, subtext;
if (shape) {
latLngs = this._shape.getLatLngs();
area = L.GeometryUtil.geodesicArea(latLngs);
subtext = L.GeometryUtil.readableArea(area, this.options.metric);
}
return {
text: tooltipText.text,
subtext: subtext
};
}
});
L.Draw.Circle = L.Draw.SimpleShape.extend({
statics: {
TYPE: 'circle'
},
options: {
shapeOptions: {
stroke: true,
color: '#f06eaa',
weight: 4,
opacity: 0.5,
fill: true,
fillColor: null, //same as color by default
fillOpacity: 0.2,
clickable: true
},
showRadius: true,
metric: true // Whether to use the metric meaurement system or imperial
},
initialize: function (map, options) {
// Save the type so super can fire, need to do this as cannot do this.TYPE :(
this.type = L.Draw.Circle.TYPE;
this._initialLabelText = L.drawLocal.draw.handlers.circle.tooltip.start;
L.Draw.SimpleShape.prototype.initialize.call(this, map, options);
},
_drawShape: function (latlng) {
if (!this._shape) {
this._shape = new L.Circle(this._startLatLng, this._startLatLng.distanceTo(latlng), this.options.shapeOptions);
this._map.addLayer(this._shape);
} else {
this._shape.setRadius(this._startLatLng.distanceTo(latlng));
}
},
_fireCreatedEvent: function () {
var circle = new L.Circle(this._startLatLng, this._shape.getRadius(), this.options.shapeOptions);
L.Draw.SimpleShape.prototype._fireCreatedEvent.call(this, circle);
},
_onMouseMove: function (e) {
var latlng = e.latlng,
showRadius = this.options.showRadius,
useMetric = this.options.metric,
radius;
this._tooltip.updatePosition(latlng);
if (this._isDrawing) {
this._drawShape(latlng);
// Get the new radius (rounded to 1 dp)
radius = this._shape.getRadius().toFixed(1);
this._tooltip.updateContent({
text: this._endLabelText,
subtext: showRadius ? 'Radius: ' + L.GeometryUtil.readableDistance(radius, useMetric) : ''
});
}
}
});
L.Draw.Marker = L.Draw.Feature.extend({
statics: {
TYPE: 'marker'
},
options: {
icon: new L.Icon.Default(),
repeatMode: false,
zIndexOffset: 2000 // This should be > than the highest z-index any markers
},
initialize: function (map, options) {
// Save the type so super can fire, need to do this as cannot do this.TYPE :(
this.type = L.Draw.Marker.TYPE;
L.Draw.Feature.prototype.initialize.call(this, map, options);
},
addHooks: function () {
L.Draw.Feature.prototype.addHooks.call(this);
if (this._map) {
this._tooltip.updateContent({ text: L.drawLocal.draw.handlers.marker.tooltip.start });
// Same mouseMarker as in Draw.Polyline
if (!this._mouseMarker) {
this._mouseMarker = L.marker(this._map.getCenter(), {
icon: L.divIcon({
className: 'leaflet-mouse-marker',
iconAnchor: [20, 20],
iconSize: [40, 40]
}),
opacity: 0,
zIndexOffset: this.options.zIndexOffset
});
}
this._mouseMarker
.on('click', this._onClick, this)
.addTo(this._map);
this._map.on('mousemove', this._onMouseMove, this);
}
},
removeHooks: function () {
L.Draw.Feature.prototype.removeHooks.call(this);
if (this._map) {
if (this._marker) {
this._marker.off('click', this._onClick, this);
this._map
.off('click', this._onClick, this)
.removeLayer(this._marker);
delete this._marker;
}
this._mouseMarker.off('click', this._onClick, this);
this._map.removeLayer(this._mouseMarker);
delete this._mouseMarker;
this._map.off('mousemove', this._onMouseMove, this);
}
},
_onMouseMove: function (e) {
var latlng = e.latlng;
this._tooltip.updatePosition(latlng);
this._mouseMarker.setLatLng(latlng);
if (!this._marker) {
this._marker = new L.Marker(latlng, {
icon: this.options.icon,
zIndexOffset: this.options.zIndexOffset
});
// Bind to both marker and map to make sure we get the click event.
this._marker.on('click', this._onClick, this);
this._map
.on('click', this._onClick, this)
.addLayer(this._marker);
}
else {
latlng = this._mouseMarker.getLatLng();
this._marker.setLatLng(latlng);
}
},
_onClick: function () {
this._fireCreatedEvent();
this.disable();
if (this.options.repeatMode) {
this.enable();
}
},
_fireCreatedEvent: function () {
var marker = new L.Marker(this._marker.getLatLng(), { icon: this.options.icon });
L.Draw.Feature.prototype._fireCreatedEvent.call(this, marker);
}
});
L.Edit = L.Edit || {};
L.Edit.Marker = L.Handler.extend({
initialize: function (marker, options) {
this._marker = marker;
L.setOptions(this, options);
},
addHooks: function () {
var marker = this._marker;
marker.dragging.enable();
marker.on('dragend', this._onDragEnd, marker);
this._toggleMarkerHighlight();
},
removeHooks: function () {
var marker = this._marker;
marker.dragging.disable();
marker.off('dragend', this._onDragEnd, marker);
this._toggleMarkerHighlight();
},
_onDragEnd: function (e) {
var layer = e.target;
layer.edited = true;
},
_toggleMarkerHighlight: function () {
// Don't do anything if this layer is a marker but doesn't have an icon. Markers
// should usually have icons. If using Leaflet.draw with Leafler.markercluster there
// is a chance that a marker doesn't.
if (!this._icon) {
return;
}
// This is quite naughty, but I don't see another way of doing it. (short of setting a new icon)
var icon = this._icon;
icon.style.display = 'none';
if (L.DomUtil.hasClass(icon, 'leaflet-edit-marker-selected')) {
L.DomUtil.removeClass(icon, 'leaflet-edit-marker-selected');
// Offset as the border will make the icon move.
this._offsetMarker(icon, -4);
} else {
L.DomUtil.addClass(icon, 'leaflet-edit-marker-selected');
// Offset as the border will make the icon move.
this._offsetMarker(icon, 4);
}
icon.style.display = '';
},
_offsetMarker: function (icon, offset) {
var iconMarginTop = parseInt(icon.style.marginTop, 10) - offset,
iconMarginLeft = parseInt(icon.style.marginLeft, 10) - offset;
icon.style.marginTop = iconMarginTop + 'px';
icon.style.marginLeft = iconMarginLeft + 'px';
}
});
L.Marker.addInitHook(function () {
if (L.Edit.Marker) {
this.editing = new L.Edit.Marker(this);
if (this.options.editable) {
this.editing.enable();
}
}
});
L.Edit = L.Edit || {};
/*
* L.Edit.Poly is an editing handler for polylines and polygons.
*/
L.Edit.Poly = L.Handler.extend({
options: {
icon: new L.DivIcon({
iconSize: new L.Point(8, 8),
className: 'leaflet-div-icon leaflet-editing-icon'
})
},
initialize: function (poly, options) {
this._poly = poly;
L.setOptions(this, options);
},
addHooks: function () {
var poly = this._poly;
if (!(poly instanceof L.Polygon)) {
poly.options.editing.fill = false;
}
poly.setStyle(poly.options.editing);
if (this._poly._map) {
if (!this._markerGroup) {
this._initMarkers();
}
this._poly._map.addLayer(this._markerGroup);
}
},
removeHooks: function () {
var poly = this._poly;
poly.setStyle(poly.options.original);
if (poly._map) {
poly._map.removeLayer(this._markerGroup);
delete this._markerGroup;
delete this._markers;
}
},
updateMarkers: function () {
this._markerGroup.clearLayers();
this._initMarkers();
},
_initMarkers: function () {
if (!this._markerGroup) {
this._markerGroup = new L.LayerGroup();
}
this._markers = [];
var latlngs = this._poly._latlngs,
i, j, len, marker;
// TODO refactor holes implementation in Polygon to support it here
for (i = 0, len = latlngs.length; i < len; i++) {
marker = this._createMarker(latlngs[i], i);
marker.on('click', this._onMarkerClick, this);
this._markers.push(marker);
}
var markerLeft, markerRight;
for (i = 0, j = len - 1; i < len; j = i++) {
if (i === 0 && !(L.Polygon && (this._poly instanceof L.Polygon))) {
continue;
}
markerLeft = this._markers[j];
markerRight = this._markers[i];
this._createMiddleMarker(markerLeft, markerRight);
this._updatePrevNext(markerLeft, markerRight);
}
},
_createMarker: function (latlng, index) {
var marker = new L.Marker(latlng, {
draggable: true,
icon: this.options.icon
});
marker._origLatLng = latlng;
marker._index = index;
marker.on('drag', this._onMarkerDrag, this);
marker.on('dragend', this._fireEdit, this);
this._markerGroup.addLayer(marker);
return marker;
},
_removeMarker: function (marker) {
var i = marker._index;
this._markerGroup.removeLayer(marker);
this._markers.splice(i, 1);
this._poly.spliceLatLngs(i, 1);
this._updateIndexes(i, -1);
marker
.off('drag', this._onMarkerDrag, this)
.off('dragend', this._fireEdit, this)
.off('click', this._onMarkerClick, this);
},
_fireEdit: function () {
this._poly.edited = true;
this._poly.fire('edit');
},
_onMarkerDrag: function (e) {
var marker = e.target;
L.extend(marker._origLatLng, marker._latlng);
if (marker._middleLeft) {
marker._middleLeft.setLatLng(this._getMiddleLatLng(marker._prev, marker));
}
if (marker._middleRight) {
marker._middleRight.setLatLng(this._getMiddleLatLng(marker, marker._next));
}
this._poly.redraw();
},
_onMarkerClick: function (e) {
var minPoints = L.Polygon && (this._poly instanceof L.Polygon) ? 4 : 3,
marker = e.target;
// If removing this point would create an invalid polyline/polygon don't remove
if (this._poly._latlngs.length < minPoints) {
return;
}
// remove the marker
this._removeMarker(marker);
// update prev/next links of adjacent markers
this._updatePrevNext(marker._prev, marker._next);
// remove ghost markers near the removed marker
if (marker._middleLeft) {
this._markerGroup.removeLayer(marker._middleLeft);
}
if (marker._middleRight) {
this._markerGroup.removeLayer(marker._middleRight);
}
// create a ghost marker in place of the removed one
if (marker._prev && marker._next) {
this._createMiddleMarker(marker._prev, marker._next);
} else if (!marker._prev) {
marker._next._middleLeft = null;
} else if (!marker._next) {
marker._prev._middleRight = null;
}
this._fireEdit();
},
_updateIndexes: function (index, delta) {
this._markerGroup.eachLayer(function (marker) {
if (marker._index > index) {
marker._index += delta;
}
});
},
_createMiddleMarker: function (marker1, marker2) {
var latlng = this._getMiddleLatLng(marker1, marker2),
marker = this._createMarker(latlng),
onClick,
onDragStart,
onDragEnd;
marker.setOpacity(0.6);
marker1._middleRight = marker2._middleLeft = marker;
onDragStart = function () {
var i = marker2._index;
marker._index = i;
marker
.off('click', onClick, this)
.on('click', this._onMarkerClick, this);
latlng.lat = marker.getLatLng().lat;
latlng.lng = marker.getLatLng().lng;
this._poly.spliceLatLngs(i, 0, latlng);
this._markers.splice(i, 0, marker);
marker.setOpacity(1);
this._updateIndexes(i, 1);
marker2._index++;
this._updatePrevNext(marker1, marker);
this._updatePrevNext(marker, marker2);
this._poly.fire('editstart');
};
onDragEnd = function () {
marker.off('dragstart', onDragStart, this);
marker.off('dragend', onDragEnd, this);
this._createMiddleMarker(marker1, marker);
this._createMiddleMarker(marker, marker2);
};
onClick = function () {
onDragStart.call(this);
onDragEnd.call(this);
this._fireEdit();
};
marker
.on('click', onClick, this)
.on('dragstart', onDragStart, this)
.on('dragend', onDragEnd, this);
this._markerGroup.addLayer(marker);
},
_updatePrevNext: function (marker1, marker2) {
if (marker1) {
marker1._next = marker2;
}
if (marker2) {
marker2._prev = marker1;
}
},
_getMiddleLatLng: function (marker1, marker2) {
var map = this._poly._map,
p1 = map.project(marker1.getLatLng()),
p2 = map.project(marker2.getLatLng());
return map.unproject(p1._add(p2)._divideBy(2));
}
});
L.Polyline.addInitHook(function () {
// Check to see if handler has already been initialized. This is to support versions of Leaflet that still have L.Handler.PolyEdit
if (this.editing) {
return;
}
if (L.Edit.Poly) {
this.editing = new L.Edit.Poly(this);
if (this.options.editable) {
this.editing.enable();
}
}
this.on('add', function () {
if (this.editing && this.editing.enabled()) {
this.editing.addHooks();
}
});
this.on('remove', function () {
if (this.editing && this.editing.enabled()) {
this.editing.removeHooks();
}
});
});
L.Edit = L.Edit || {};
L.Edit.SimpleShape = L.Handler.extend({
options: {
moveIcon: new L.DivIcon({
iconSize: new L.Point(8, 8),
className: 'leaflet-div-icon leaflet-editing-icon leaflet-edit-move'
}),
resizeIcon: new L.DivIcon({
iconSize: new L.Point(8, 8),
className: 'leaflet-div-icon leaflet-editing-icon leaflet-edit-resize'
})
},
initialize: function (shape, options) {
this._shape = shape;
L.Util.setOptions(this, options);
},
addHooks: function () {
var shape = this._shape;
shape.setStyle(shape.options.editing);
if (shape._map) {
this._map = shape._map;
if (!this._markerGroup) {
this._initMarkers();
}
this._map.addLayer(this._markerGroup);
}
},
removeHooks: function () {
var shape = this._shape;
shape.setStyle(shape.options.original);
if (shape._map) {
this._unbindMarker(this._moveMarker);
for (var i = 0, l = this._resizeMarkers.length; i < l; i++) {
this._unbindMarker(this._resizeMarkers[i]);
}
this._resizeMarkers = null;
this._map.removeLayer(this._markerGroup);
delete this._markerGroup;
}
this._map = null;
},
updateMarkers: function () {
this._markerGroup.clearLayers();
this._initMarkers();
},
_initMarkers: function () {
if (!this._markerGroup) {
this._markerGroup = new L.LayerGroup();
}
// Create center marker
this._createMoveMarker();
// Create edge marker
this._createResizeMarker();
},
_createMoveMarker: function () {
// Children override
},
_createResizeMarker: function () {
// Children override
},
_createMarker: function (latlng, icon) {
var marker = new L.Marker(latlng, {
draggable: true,
icon: icon,
zIndexOffset: 10
});
this._bindMarker(marker);
this._markerGroup.addLayer(marker);
return marker;
},
_bindMarker: function (marker) {
marker
.on('dragstart', this._onMarkerDragStart, this)
.on('drag', this._onMarkerDrag, this)
.on('dragend', this._onMarkerDragEnd, this);
},
_unbindMarker: function (marker) {
marker
.off('dragstart', this._onMarkerDragStart, this)
.off('drag', this._onMarkerDrag, this)
.off('dragend', this._onMarkerDragEnd, this);
},
_onMarkerDragStart: function (e) {
var marker = e.target;
marker.setOpacity(0);
this._shape.fire('editstart');
},
_fireEdit: function () {
this._shape.edited = true;
this._shape.fire('edit');
},
_onMarkerDrag: function (e) {
var marker = e.target,
latlng = marker.getLatLng();
if (marker === this._moveMarker) {
this._move(latlng);
} else {
this._resize(latlng);
}
this._shape.redraw();
},
_onMarkerDragEnd: function (e) {
var marker = e.target;
marker.setOpacity(1);
this._fireEdit();
},
_move: function () {
// Children override
},
_resize: function () {
// Children override
}
});
L.Edit = L.Edit || {};
L.Edit.Rectangle = L.Edit.SimpleShape.extend({
_createMoveMarker: function () {
var bounds = this._shape.getBounds(),
center = bounds.getCenter();
this._moveMarker = this._createMarker(center, this.options.moveIcon);
},
_createResizeMarker: function () {
var corners = this._getCorners();
this._resizeMarkers = [];
for (var i = 0, l = corners.length; i < l; i++) {
this._resizeMarkers.push(this._createMarker(corners[i], this.options.resizeIcon));
// Monkey in the corner index as we will need to know this for dragging
this._resizeMarkers[i]._cornerIndex = i;
}
},
_onMarkerDragStart: function (e) {
L.Edit.SimpleShape.prototype._onMarkerDragStart.call(this, e);
// Save a reference to the opposite point
var corners = this._getCorners(),
marker = e.target,
currentCornerIndex = marker._cornerIndex;
this._oppositeCorner = corners[(currentCornerIndex + 2) % 4];
this._toggleCornerMarkers(0, currentCornerIndex);
},
_onMarkerDragEnd: function (e) {
var marker = e.target,
bounds, center;
// Reset move marker position to the center
if (marker === this._moveMarker) {
bounds = this._shape.getBounds();
center = bounds.getCenter();
marker.setLatLng(center);
}
this._toggleCornerMarkers(1);
this._repositionCornerMarkers();
L.Edit.SimpleShape.prototype._onMarkerDragEnd.call(this, e);
},
_move: function (newCenter) {
var latlngs = this._shape.getLatLngs(),
bounds = this._shape.getBounds(),
center = bounds.getCenter(),
offset, newLatLngs = [];
// Offset the latlngs to the new center
for (var i = 0, l = latlngs.length; i < l; i++) {
offset = [latlngs[i].lat - center.lat, latlngs[i].lng - center.lng];
newLatLngs.push([newCenter.lat + offset[0], newCenter.lng + offset[1]]);
}
this._shape.setLatLngs(newLatLngs);
// Reposition the resize markers
this._repositionCornerMarkers();
},
_resize: function (latlng) {
var bounds;
// Update the shape based on the current position of this corner and the opposite point
this._shape.setBounds(L.latLngBounds(latlng, this._oppositeCorner));
// Reposition the move marker
bounds = this._shape.getBounds();
this._moveMarker.setLatLng(bounds.getCenter());
},
_getCorners: function () {
var bounds = this._shape.getBounds(),
nw = bounds.getNorthWest(),
ne = bounds.getNorthEast(),
se = bounds.getSouthEast(),
sw = bounds.getSouthWest();
return [nw, ne, se, sw];
},
_toggleCornerMarkers: function (opacity) {
for (var i = 0, l = this._resizeMarkers.length; i < l; i++) {
this._resizeMarkers[i].setOpacity(opacity);
}
},
_repositionCornerMarkers: function () {
var corners = this._getCorners();
for (var i = 0, l = this._resizeMarkers.length; i < l; i++) {
this._resizeMarkers[i].setLatLng(corners[i]);
}
}
});
L.Rectangle.addInitHook(function () {
if (L.Edit.Rectangle) {
this.editing = new L.Edit.Rectangle(this);
if (this.options.editable) {
this.editing.enable();
}
}
});
L.Edit = L.Edit || {};
L.Edit.Circle = L.Edit.SimpleShape.extend({
_createMoveMarker: function () {
var center = this._shape.getLatLng();
this._moveMarker = this._createMarker(center, this.options.moveIcon);
},
_createResizeMarker: function () {
var center = this._shape.getLatLng(),
resizemarkerPoint = this._getResizeMarkerPoint(center);
this._resizeMarkers = [];
this._resizeMarkers.push(this._createMarker(resizemarkerPoint, this.options.resizeIcon));
},
_getResizeMarkerPoint: function (latlng) {
// From L.shape.getBounds()
var delta = this._shape._radius * Math.cos(Math.PI / 4),
point = this._map.project(latlng);
return this._map.unproject([point.x + delta, point.y - delta]);
},
_move: function (latlng) {
var resizemarkerPoint = this._getResizeMarkerPoint(latlng);
// Move the resize marker
this._resizeMarkers[0].setLatLng(resizemarkerPoint);
// Move the circle
this._shape.setLatLng(latlng);
},
_resize: function (latlng) {
var moveLatLng = this._moveMarker.getLatLng(),
radius = moveLatLng.distanceTo(latlng);
this._shape.setRadius(radius);
}
});
L.Circle.addInitHook(function () {
if (L.Edit.Circle) {
this.editing = new L.Edit.Circle(this);
if (this.options.editable) {
this.editing.enable();
}
}
this.on('add', function () {
if (this.editing && this.editing.enabled()) {
this.editing.addHooks();
}
});
this.on('remove', function () {
if (this.editing && this.editing.enabled()) {
this.editing.removeHooks();
}
});
});
/*
* L.LatLngUtil contains different utility functions for LatLngs.
*/
L.LatLngUtil = {
// Clones a LatLngs[], returns [][]
cloneLatLngs: function (latlngs) {
var clone = [];
for (var i = 0, l = latlngs.length; i < l; i++) {
clone.push(this.cloneLatLng(latlngs[i]));
}
return clone;
},
cloneLatLng: function (latlng) {
return L.latLng(latlng.lat, latlng.lng);
}
};
L.GeometryUtil = L.extend(L.GeometryUtil || {}, {
// Ported from the OpenLayers implementation. See https://github.com/openlayers/openlayers/blob/master/lib/OpenLayers/Geometry/LinearRing.js#L270
geodesicArea: function (latLngs) {
var pointsCount = latLngs.length,
area = 0.0,
d2r = L.LatLng.DEG_TO_RAD,
p1, p2;
if (pointsCount > 2) {
for (var i = 0; i < pointsCount; i++) {
p1 = latLngs[i];
p2 = latLngs[(i + 1) % pointsCount];
area += ((p2.lng - p1.lng) * d2r) *
(2 + Math.sin(p1.lat * d2r) + Math.sin(p2.lat * d2r));
}
area = area * 6378137.0 * 6378137.0 / 2.0;
}
return Math.abs(area);
},
readableArea: function (area, isMetric) {
var areaStr;
if (isMetric) {
if (area >= 10000) {
areaStr = (area * 0.0001).toFixed(2) + ' ha';
} else {
areaStr = area.toFixed(2) + ' m²';
}
} else {
area /= 0.836127; // Square yards in 1 meter
if (area >= 3097600) { //3097600 square yards in 1 square mile
areaStr = (area / 3097600).toFixed(2) + ' mi²';
} else if (area >= 4840) {//48040 square yards in 1 acre
areaStr = (area / 4840).toFixed(2) + ' acres';
} else {
areaStr = Math.ceil(area) + ' yd²';
}
}
return areaStr;
},
readableDistance: function (distance, isMetric) {
var distanceStr;
if (isMetric) {
// show metres when distance is < 1km, then show km
if (distance > 1000) {
distanceStr = (distance / 1000).toFixed(2) + ' km';
} else {
distanceStr = Math.ceil(distance) + ' m';
}
} else {
distance *= 1.09361;
if (distance > 1760) {
distanceStr = (distance / 1760).toFixed(2) + ' miles';
} else {
distanceStr = Math.ceil(distance) + ' yd';
}
}
return distanceStr;
}
});
L.Util.extend(L.LineUtil, {
// Checks to see if two line segments intersect. Does not handle degenerate cases.
// http://compgeom.cs.uiuc.edu/~jeffe/teaching/373/notes/x06-sweepline.pdf
segmentsIntersect: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2, /*Point*/ p3) {
return this._checkCounterclockwise(p, p2, p3) !==
this._checkCounterclockwise(p1, p2, p3) &&
this._checkCounterclockwise(p, p1, p2) !==
this._checkCounterclockwise(p, p1, p3);
},
// check to see if points are in counterclockwise order
_checkCounterclockwise: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
return (p2.y - p.y) * (p1.x - p.x) > (p1.y - p.y) * (p2.x - p.x);
}
});
L.Polyline.include({
// Check to see if this polyline has any linesegments that intersect.
// NOTE: does not support detecting intersection for degenerate cases.
intersects: function () {
var points = this._originalPoints,
len = points ? points.length : 0,
i, p, p1;
if (this._tooFewPointsForIntersection()) {
return false;
}
for (i = len - 1; i >= 3; i--) {
p = points[i - 1];
p1 = points[i];
if (this._lineSegmentsIntersectsRange(p, p1, i - 2)) {
return true;
}
}
return false;
},
// Check for intersection if new latlng was added to this polyline.
// NOTE: does not support detecting intersection for degenerate cases.
newLatLngIntersects: function (latlng, skipFirst) {
// Cannot check a polyline for intersecting lats/lngs when not added to the map
if (!this._map) {
return false;
}
return this.newPointIntersects(this._map.latLngToLayerPoint(latlng), skipFirst);
},
// Check for intersection if new point was added to this polyline.
// newPoint must be a layer point.
// NOTE: does not support detecting intersection for degenerate cases.
newPointIntersects: function (newPoint, skipFirst) {
var points = this._originalPoints,
len = points ? points.length : 0,
lastPoint = points ? points[len - 1] : null,
// The previous previous line segment. Previous line segment doesn't need testing.
maxIndex = len - 2;
if (this._tooFewPointsForIntersection(1)) {
return false;
}
return this._lineSegmentsIntersectsRange(lastPoint, newPoint, maxIndex, skipFirst ? 1 : 0);
},
// Polylines with 2 sides can only intersect in cases where points are collinear (we don't support detecting these).
// Cannot have intersection when < 3 line segments (< 4 points)
_tooFewPointsForIntersection: function (extraPoints) {
var points = this._originalPoints,
len = points ? points.length : 0;
// Increment length by extraPoints if present
len += extraPoints || 0;
return !this._originalPoints || len <= 3;
},
// Checks a line segment intersections with any line segments before its predecessor.
// Don't need to check the predecessor as will never intersect.
_lineSegmentsIntersectsRange: function (p, p1, maxIndex, minIndex) {
var points = this._originalPoints,
p2, p3;
minIndex = minIndex || 0;
// Check all previous line segments (beside the immediately previous) for intersections
for (var j = maxIndex; j > minIndex; j--) {
p2 = points[j - 1];
p3 = points[j];
if (L.LineUtil.segmentsIntersect(p, p1, p2, p3)) {
return true;
}
}
return false;
}
});
L.Polygon.include({
// Checks a polygon for any intersecting line segments. Ignores holes.
intersects: function () {
var polylineIntersects,
points = this._originalPoints,
len, firstPoint, lastPoint, maxIndex;
if (this._tooFewPointsForIntersection()) {
return false;
}
polylineIntersects = L.Polyline.prototype.intersects.call(this);
// If already found an intersection don't need to check for any more.
if (polylineIntersects) {
return true;
}
len = points.length;
firstPoint = points[0];
lastPoint = points[len - 1];
maxIndex = len - 2;
// Check the line segment between last and first point. Don't need to check the first line segment (minIndex = 1)
return this._lineSegmentsIntersectsRange(lastPoint, firstPoint, maxIndex, 1);
}
});
L.Control.Draw = L.Control.extend({
options: {
position: 'topleft',
draw: {},
edit: false
},
initialize: function (options) {
if (L.version < '0.7') {
throw new Error('Leaflet.draw 0.2.3+ requires Leaflet 0.7.0+. Download latest from https://github.com/Leaflet/Leaflet/');
}
L.Control.prototype.initialize.call(this, options);
var toolbar;
this._toolbars = {};
// Initialize toolbars
if (L.DrawToolbar && this.options.draw) {
toolbar = new L.DrawToolbar(this.options.draw);
this._toolbars[L.DrawToolbar.TYPE] = toolbar;
// Listen for when toolbar is enabled
this._toolbars[L.DrawToolbar.TYPE].on('enable', this._toolbarEnabled, this);
}
if (L.EditToolbar && this.options.edit) {
toolbar = new L.EditToolbar(this.options.edit);
this._toolbars[L.EditToolbar.TYPE] = toolbar;
// Listen for when toolbar is enabled
this._toolbars[L.EditToolbar.TYPE].on('enable', this._toolbarEnabled, this);
}
},
onAdd: function (map) {
var container = L.DomUtil.create('div', 'leaflet-draw'),
addedTopClass = false,
topClassName = 'leaflet-draw-toolbar-top',
toolbarContainer;
for (var toolbarId in this._toolbars) {
if (this._toolbars.hasOwnProperty(toolbarId)) {
toolbarContainer = this._toolbars[toolbarId].addToolbar(map);
if (toolbarContainer) {
// Add class to the first toolbar to remove the margin
if (!addedTopClass) {
if (!L.DomUtil.hasClass(toolbarContainer, topClassName)) {
L.DomUtil.addClass(toolbarContainer.childNodes[0], topClassName);
}
addedTopClass = true;
}
container.appendChild(toolbarContainer);
}
}
}
return container;
},
onRemove: function () {
for (var toolbarId in this._toolbars) {
if (this._toolbars.hasOwnProperty(toolbarId)) {
this._toolbars[toolbarId].removeToolbar();
}
}
},
setDrawingOptions: function (options) {
for (var toolbarId in this._toolbars) {
if (this._toolbars[toolbarId] instanceof L.DrawToolbar) {
this._toolbars[toolbarId].setOptions(options);
}
}
},
_toolbarEnabled: function (e) {
var enabledToolbar = e.target;
for (var toolbarId in this._toolbars) {
if (this._toolbars[toolbarId] !== enabledToolbar) {
this._toolbars[toolbarId].disable();
}
}
}
});
L.Map.mergeOptions({
drawControlTooltips: true,
drawControl: false
});
L.Map.addInitHook(function () {
if (this.options.drawControl) {
this.drawControl = new L.Control.Draw();
this.addControl(this.drawControl);
}
});
L.Toolbar = L.Class.extend({
includes: [L.Mixin.Events],
initialize: function (options) {
L.setOptions(this, options);
this._modes = {};
this._actionButtons = [];
this._activeMode = null;
},
enabled: function () {
return this._activeMode !== null;
},
disable: function () {
if (!this.enabled()) { return; }
this._activeMode.handler.disable();
},
addToolbar: function (map) {
var container = L.DomUtil.create('div', 'leaflet-draw-section'),
buttonIndex = 0,
buttonClassPrefix = this._toolbarClass || '',
modeHandlers = this.getModeHandlers(map),
i;
this._toolbarContainer = L.DomUtil.create('div', 'leaflet-draw-toolbar leaflet-bar');
this._map = map;
for (i = 0; i < modeHandlers.length; i++) {
if (modeHandlers[i].enabled) {
this._initModeHandler(
modeHandlers[i].handler,
this._toolbarContainer,
buttonIndex++,
buttonClassPrefix,
modeHandlers[i].title
);
}
}
// if no buttons were added, do not add the toolbar
if (!buttonIndex) {
return;
}
// Save button index of the last button, -1 as we would have ++ after the last button
this._lastButtonIndex = --buttonIndex;
// Create empty actions part of the toolbar
this._actionsContainer = L.DomUtil.create('ul', 'leaflet-draw-actions');
// Add draw and cancel containers to the control container
container.appendChild(this._toolbarContainer);
container.appendChild(this._actionsContainer);
return container;
},
removeToolbar: function () {
// Dispose each handler
for (var handlerId in this._modes) {
if (this._modes.hasOwnProperty(handlerId)) {
// Unbind handler button
this._disposeButton(
this._modes[handlerId].button,
this._modes[handlerId].handler.enable,
this._modes[handlerId].handler
);
// Make sure is disabled
this._modes[handlerId].handler.disable();
// Unbind handler
this._modes[handlerId].handler
.off('enabled', this._handlerActivated, this)
.off('disabled', this._handlerDeactivated, this);
}
}
this._modes = {};
// Dispose the actions toolbar
for (var i = 0, l = this._actionButtons.length; i < l; i++) {
this._disposeButton(
this._actionButtons[i].button,
this._actionButtons[i].callback,
this
);
}
this._actionButtons = [];
this._actionsContainer = null;
},
_initModeHandler: function (handler, container, buttonIndex, classNamePredix, buttonTitle) {
var type = handler.type;
this._modes[type] = {};
this._modes[type].handler = handler;
this._modes[type].button = this._createButton({
title: buttonTitle,
className: classNamePredix + '-' + type,
container: container,
callback: this._modes[type].handler.enable,
context: this._modes[type].handler
});
this._modes[type].buttonIndex = buttonIndex;
this._modes[type].handler
.on('enabled', this._handlerActivated, this)
.on('disabled', this._handlerDeactivated, this);
},
_createButton: function (options) {
var link = L.DomUtil.create('a', options.className || '', options.container);
link.href = '#';
if (options.text) {
link.innerHTML = options.text;
}
if (options.title) {
link.title = options.title;
}
L.DomEvent
.on(link, 'click', L.DomEvent.stopPropagation)
.on(link, 'mousedown', L.DomEvent.stopPropagation)
.on(link, 'dblclick', L.DomEvent.stopPropagation)
.on(link, 'click', L.DomEvent.preventDefault)
.on(link, 'click', options.callback, options.context);
return link;
},
_disposeButton: function (button, callback) {
L.DomEvent
.off(button, 'click', L.DomEvent.stopPropagation)
.off(button, 'mousedown', L.DomEvent.stopPropagation)
.off(button, 'dblclick', L.DomEvent.stopPropagation)
.off(button, 'click', L.DomEvent.preventDefault)
.off(button, 'click', callback);
},
_handlerActivated: function (e) {
// Disable active mode (if present)
this.disable();
// Cache new active feature
this._activeMode = this._modes[e.handler];
L.DomUtil.addClass(this._activeMode.button, 'leaflet-draw-toolbar-button-enabled');
this._showActionsToolbar();
this.fire('enable');
},
_handlerDeactivated: function () {
this._hideActionsToolbar();
L.DomUtil.removeClass(this._activeMode.button, 'leaflet-draw-toolbar-button-enabled');
this._activeMode = null;
this.fire('disable');
},
_createActions: function (handler) {
var container = this._actionsContainer,
buttons = this.getActions(handler),
l = buttons.length,
li, di, dl, button;
// Dispose the actions toolbar (todo: dispose only not used buttons)
for (di = 0, dl = this._actionButtons.length; di < dl; di++) {
this._disposeButton(this._actionButtons[di].button, this._actionButtons[di].callback);
}
this._actionButtons = [];
// Remove all old buttons
while (container.firstChild) {
container.removeChild(container.firstChild);
}
for (var i = 0; i < l; i++) {
if ('enabled' in buttons[i] && !buttons[i].enabled) {
continue;
}
li = L.DomUtil.create('li', '', container);
button = this._createButton({
title: buttons[i].title,
text: buttons[i].text,
container: li,
callback: buttons[i].callback,
context: buttons[i].context
});
this._actionButtons.push({
button: button,
callback: buttons[i].callback
});
}
},
_showActionsToolbar: function () {
var buttonIndex = this._activeMode.buttonIndex,
lastButtonIndex = this._lastButtonIndex,
toolbarPosition = this._activeMode.button.offsetTop - 1;
// Recreate action buttons on every click
this._createActions(this._activeMode.handler);
// Correctly position the cancel button
this._actionsContainer.style.top = toolbarPosition + 'px';
if (buttonIndex === 0) {
L.DomUtil.addClass(this._toolbarContainer, 'leaflet-draw-toolbar-notop');
L.DomUtil.addClass(this._actionsContainer, 'leaflet-draw-actions-top');
}
if (buttonIndex === lastButtonIndex) {
L.DomUtil.addClass(this._toolbarContainer, 'leaflet-draw-toolbar-nobottom');
L.DomUtil.addClass(this._actionsContainer, 'leaflet-draw-actions-bottom');
}
this._actionsContainer.style.display = 'block';
},
_hideActionsToolbar: function () {
this._actionsContainer.style.display = 'none';
L.DomUtil.removeClass(this._toolbarContainer, 'leaflet-draw-toolbar-notop');
L.DomUtil.removeClass(this._toolbarContainer, 'leaflet-draw-toolbar-nobottom');
L.DomUtil.removeClass(this._actionsContainer, 'leaflet-draw-actions-top');
L.DomUtil.removeClass(this._actionsContainer, 'leaflet-draw-actions-bottom');
}
});
L.Tooltip = L.Class.extend({
initialize: function (map) {
this._map = map;
this._popupPane = map._panes.popupPane;
this._container = map.options.drawControlTooltips ? L.DomUtil.create('div', 'leaflet-draw-tooltip', this._popupPane) : null;
this._singleLineLabel = false;
},
dispose: function () {
if (this._container) {
this._popupPane.removeChild(this._container);
this._container = null;
}
},
updateContent: function (labelText) {
if (!this._container) {
return this;
}
labelText.subtext = labelText.subtext || '';
// update the vertical position (only if changed)
if (labelText.subtext.length === 0 && !this._singleLineLabel) {
L.DomUtil.addClass(this._container, 'leaflet-draw-tooltip-single');
this._singleLineLabel = true;
}
else if (labelText.subtext.length > 0 && this._singleLineLabel) {
L.DomUtil.removeClass(this._container, 'leaflet-draw-tooltip-single');
this._singleLineLabel = false;
}
this._container.innerHTML =
(labelText.subtext.length > 0 ? '<span class="leaflet-draw-tooltip-subtext">' + labelText.subtext + '</span>' + '<br />' : '') +
'<span>' + labelText.text + '</span>';
return this;
},
updatePosition: function (latlng) {
var pos = this._map.latLngToLayerPoint(latlng),
tooltipContainer = this._container;
if (this._container) {
tooltipContainer.style.visibility = 'inherit';
L.DomUtil.setPosition(tooltipContainer, pos);
}
return this;
},
showAsError: function () {
if (this._container) {
L.DomUtil.addClass(this._container, 'leaflet-error-draw-tooltip');
}
return this;
},
removeError: function () {
if (this._container) {
L.DomUtil.removeClass(this._container, 'leaflet-error-draw-tooltip');
}
return this;
}
});
L.DrawToolbar = L.Toolbar.extend({
statics: {
TYPE: 'draw'
},
options: {
polyline: {},
polygon: {},
rectangle: {},
circle: {},
marker: {}
},
initialize: function (options) {
// Ensure that the options are merged correctly since L.extend is only shallow
for (var type in this.options) {
if (this.options.hasOwnProperty(type)) {
if (options[type]) {
options[type] = L.extend({}, this.options[type], options[type]);
}
}
}
this._toolbarClass = 'leaflet-draw-draw';
L.Toolbar.prototype.initialize.call(this, options);
},
getModeHandlers: function (map) {
return [
{
enabled: this.options.polyline,
handler: new L.Draw.Polyline(map, this.options.polyline),
title: L.drawLocal.draw.toolbar.buttons.polyline
},
{
enabled: this.options.polygon,
handler: new L.Draw.Polygon(map, this.options.polygon),
title: L.drawLocal.draw.toolbar.buttons.polygon
},
{
enabled: this.options.rectangle,
handler: new L.Draw.Rectangle(map, this.options.rectangle),
title: L.drawLocal.draw.toolbar.buttons.rectangle
},
{
enabled: this.options.circle,
handler: new L.Draw.Circle(map, this.options.circle),
title: L.drawLocal.draw.toolbar.buttons.circle
},
{
enabled: this.options.marker,
handler: new L.Draw.Marker(map, this.options.marker),
title: L.drawLocal.draw.toolbar.buttons.marker
}
];
},
// Get the actions part of the toolbar
getActions: function (handler) {
return [
{
enabled: handler.deleteLastVertex,
title: L.drawLocal.draw.toolbar.undo.title,
text: L.drawLocal.draw.toolbar.undo.text,
callback: handler.deleteLastVertex,
context: handler
},
{
title: L.drawLocal.draw.toolbar.actions.title,
text: L.drawLocal.draw.toolbar.actions.text,
callback: this.disable,
context: this
}
];
},
setOptions: function (options) {
L.setOptions(this, options);
for (var type in this._modes) {
if (this._modes.hasOwnProperty(type) && options.hasOwnProperty(type)) {
this._modes[type].handler.setOptions(options[type]);
}
}
}
});
/*L.Map.mergeOptions({
editControl: true
});*/
L.EditToolbar = L.Toolbar.extend({
statics: {
TYPE: 'edit'
},
options: {
edit: {
selectedPathOptions: {
color: '#fe57a1', /* Hot pink all the things! */
opacity: 0.6,
dashArray: '10, 10',
fill: true,
fillColor: '#fe57a1',
fillOpacity: 0.1,
// Whether to user the existing layers color
maintainColor: false
}
},
remove: {},
featureGroup: null /* REQUIRED! TODO: perhaps if not set then all layers on the map are selectable? */
},
initialize: function (options) {
// Need to set this manually since null is an acceptable value here
if (options.edit) {
if (typeof options.edit.selectedPathOptions === 'undefined') {
options.edit.selectedPathOptions = this.options.edit.selectedPathOptions;
}
options.edit.selectedPathOptions = L.extend({}, this.options.edit.selectedPathOptions, options.edit.selectedPathOptions);
}
if (options.remove) {
options.remove = L.extend({}, this.options.remove, options.remove);
}
this._toolbarClass = 'leaflet-draw-edit';
L.Toolbar.prototype.initialize.call(this, options);
this._selectedFeatureCount = 0;
},
getModeHandlers: function (map) {
var featureGroup = this.options.featureGroup;
return [
{
enabled: this.options.edit,
handler: new L.EditToolbar.Edit(map, {
featureGroup: featureGroup,
selectedPathOptions: this.options.edit.selectedPathOptions
}),
title: L.drawLocal.edit.toolbar.buttons.edit
},
{
enabled: this.options.remove,
handler: new L.EditToolbar.Delete(map, {
featureGroup: featureGroup
}),
title: L.drawLocal.edit.toolbar.buttons.remove
}
];
},
getActions: function () {
return [
{
title: L.drawLocal.edit.toolbar.actions.save.title,
text: L.drawLocal.edit.toolbar.actions.save.text,
callback: this._save,
context: this
},
{
title: L.drawLocal.edit.toolbar.actions.cancel.title,
text: L.drawLocal.edit.toolbar.actions.cancel.text,
callback: this.disable,
context: this
}
];
},
addToolbar: function (map) {
var container = L.Toolbar.prototype.addToolbar.call(this, map);
this._checkDisabled();
this.options.featureGroup.on('layeradd layerremove', this._checkDisabled, this);
return container;
},
removeToolbar: function () {
this.options.featureGroup.off('layeradd layerremove', this._checkDisabled, this);
L.Toolbar.prototype.removeToolbar.call(this);
},
disable: function () {
if (!this.enabled()) { return; }
this._activeMode.handler.revertLayers();
L.Toolbar.prototype.disable.call(this);
},
_save: function () {
this._activeMode.handler.save();
this._activeMode.handler.disable();
},
_checkDisabled: function () {
var featureGroup = this.options.featureGroup,
hasLayers = featureGroup.getLayers().length !== 0,
button;
if (this.options.edit) {
button = this._modes[L.EditToolbar.Edit.TYPE].button;
if (hasLayers) {
L.DomUtil.removeClass(button, 'leaflet-disabled');
} else {
L.DomUtil.addClass(button, 'leaflet-disabled');
}
button.setAttribute(
'title',
hasLayers ?
L.drawLocal.edit.toolbar.buttons.edit
: L.drawLocal.edit.toolbar.buttons.editDisabled
);
}
if (this.options.remove) {
button = this._modes[L.EditToolbar.Delete.TYPE].button;
if (hasLayers) {
L.DomUtil.removeClass(button, 'leaflet-disabled');
} else {
L.DomUtil.addClass(button, 'leaflet-disabled');
}
button.setAttribute(
'title',
hasLayers ?
L.drawLocal.edit.toolbar.buttons.remove
: L.drawLocal.edit.toolbar.buttons.removeDisabled
);
}
}
});
L.EditToolbar.Edit = L.Handler.extend({
statics: {
TYPE: 'edit'
},
includes: L.Mixin.Events,
initialize: function (map, options) {
L.Handler.prototype.initialize.call(this, map);
L.setOptions(this, options);
// Store the selectable layer group for ease of access
this._featureGroup = options.featureGroup;
if (!(this._featureGroup instanceof L.FeatureGroup)) {
throw new Error('options.featureGroup must be a L.FeatureGroup');
}
this._uneditedLayerProps = {};
// Save the type so super can fire, need to do this as cannot do this.TYPE :(
this.type = L.EditToolbar.Edit.TYPE;
},
enable: function () {
if (this._enabled || !this._hasAvailableLayers()) {
return;
}
this.fire('enabled', {handler: this.type});
//this disable other handlers
this._map.fire('draw:editstart', { handler: this.type });
//allow drawLayer to be updated before beginning edition.
L.Handler.prototype.enable.call(this);
this._featureGroup
.on('layeradd', this._enableLayerEdit, this)
.on('layerremove', this._disableLayerEdit, this);
},
disable: function () {
if (!this._enabled) { return; }
this._featureGroup
.off('layeradd', this._enableLayerEdit, this)
.off('layerremove', this._disableLayerEdit, this);
L.Handler.prototype.disable.call(this);
this._map.fire('draw:editstop', { handler: this.type });
this.fire('disabled', {handler: this.type});
},
addHooks: function () {
var map = this._map;
if (map) {
map.getContainer().focus();
this._featureGroup.eachLayer(this._enableLayerEdit, this);
this._tooltip = new L.Tooltip(this._map);
this._tooltip.updateContent({
text: L.drawLocal.edit.handlers.edit.tooltip.text,
subtext: L.drawLocal.edit.handlers.edit.tooltip.subtext
});
this._map.on('mousemove', this._onMouseMove, this);
}
},
removeHooks: function () {
if (this._map) {
// Clean up selected layers.
this._featureGroup.eachLayer(this._disableLayerEdit, this);
// Clear the backups of the original layers
this._uneditedLayerProps = {};
this._tooltip.dispose();
this._tooltip = null;
this._map.off('mousemove', this._onMouseMove, this);
}
},
revertLayers: function () {
this._featureGroup.eachLayer(function (layer) {
this._revertLayer(layer);
}, this);
},
save: function () {
var editedLayers = new L.LayerGroup();
this._featureGroup.eachLayer(function (layer) {
if (layer.edited) {
editedLayers.addLayer(layer);
layer.edited = false;
}
});
this._map.fire('draw:edited', {layers: editedLayers});
},
_backupLayer: function (layer) {
var id = L.Util.stamp(layer);
if (!this._uneditedLayerProps[id]) {
// Polyline, Polygon or Rectangle
if (layer instanceof L.Polyline || layer instanceof L.Polygon || layer instanceof L.Rectangle) {
this._uneditedLayerProps[id] = {
latlngs: L.LatLngUtil.cloneLatLngs(layer.getLatLngs())
};
} else if (layer instanceof L.Circle) {
this._uneditedLayerProps[id] = {
latlng: L.LatLngUtil.cloneLatLng(layer.getLatLng()),
radius: layer.getRadius()
};
} else if (layer instanceof L.Marker) { // Marker
this._uneditedLayerProps[id] = {
latlng: L.LatLngUtil.cloneLatLng(layer.getLatLng())
};
}
}
},
_revertLayer: function (layer) {
var id = L.Util.stamp(layer);
layer.edited = false;
if (this._uneditedLayerProps.hasOwnProperty(id)) {
// Polyline, Polygon or Rectangle
if (layer instanceof L.Polyline || layer instanceof L.Polygon || layer instanceof L.Rectangle) {
layer.setLatLngs(this._uneditedLayerProps[id].latlngs);
} else if (layer instanceof L.Circle) {
layer.setLatLng(this._uneditedLayerProps[id].latlng);
layer.setRadius(this._uneditedLayerProps[id].radius);
} else if (layer instanceof L.Marker) { // Marker
layer.setLatLng(this._uneditedLayerProps[id].latlng);
}
layer.fire('revert-edited', { layer: layer });
}
},
_enableLayerEdit: function (e) {
var layer = e.layer || e.target || e,
pathOptions;
// Back up this layer (if haven't before)
this._backupLayer(layer);
// Set different style for editing mode
if (this.options.selectedPathOptions) {
pathOptions = L.Util.extend({}, this.options.selectedPathOptions);
// Use the existing color of the layer
if (pathOptions.maintainColor) {
pathOptions.color = layer.options.color;
pathOptions.fillColor = layer.options.fillColor;
}
layer.options.original = L.extend({}, layer.options);
layer.options.editing = pathOptions;
}
layer.editing.enable();
},
_disableLayerEdit: function (e) {
var layer = e.layer || e.target || e;
layer.edited = false;
layer.editing.disable();
delete layer.options.editing;
delete layer.options.original;
},
_onMouseMove: function (e) {
this._tooltip.updatePosition(e.latlng);
},
_hasAvailableLayers: function () {
return this._featureGroup.getLayers().length !== 0;
}
});
L.EditToolbar.Delete = L.Handler.extend({
statics: {
TYPE: 'remove' // not delete as delete is reserved in js
},
includes: L.Mixin.Events,
initialize: function (map, options) {
L.Handler.prototype.initialize.call(this, map);
L.Util.setOptions(this, options);
// Store the selectable layer group for ease of access
this._deletableLayers = this.options.featureGroup;
if (!(this._deletableLayers instanceof L.FeatureGroup)) {
throw new Error('options.featureGroup must be a L.FeatureGroup');
}
// Save the type so super can fire, need to do this as cannot do this.TYPE :(
this.type = L.EditToolbar.Delete.TYPE;
},
enable: function () {
if (this._enabled || !this._hasAvailableLayers()) {
return;
}
this.fire('enabled', { handler: this.type});
this._map.fire('draw:deletestart', { handler: this.type });
L.Handler.prototype.enable.call(this);
this._deletableLayers
.on('layeradd', this._enableLayerDelete, this)
.on('layerremove', this._disableLayerDelete, this);
},
disable: function () {
if (!this._enabled) { return; }
this._deletableLayers
.off('layeradd', this._enableLayerDelete, this)
.off('layerremove', this._disableLayerDelete, this);
L.Handler.prototype.disable.call(this);
this._map.fire('draw:deletestop', { handler: this.type });
this.fire('disabled', { handler: this.type});
},
addHooks: function () {
var map = this._map;
if (map) {
map.getContainer().focus();
this._deletableLayers.eachLayer(this._enableLayerDelete, this);
this._deletedLayers = new L.layerGroup();
this._tooltip = new L.Tooltip(this._map);
this._tooltip.updateContent({ text: L.drawLocal.edit.handlers.remove.tooltip.text });
this._map.on('mousemove', this._onMouseMove, this);
}
},
removeHooks: function () {
if (this._map) {
this._deletableLayers.eachLayer(this._disableLayerDelete, this);
this._deletedLayers = null;
this._tooltip.dispose();
this._tooltip = null;
this._map.off('mousemove', this._onMouseMove, this);
}
},
revertLayers: function () {
// Iterate of the deleted layers and add them back into the featureGroup
this._deletedLayers.eachLayer(function (layer) {
this._deletableLayers.addLayer(layer);
layer.fire('revert-deleted', { layer: layer });
}, this);
},
save: function () {
this._map.fire('draw:deleted', { layers: this._deletedLayers });
},
_enableLayerDelete: function (e) {
var layer = e.layer || e.target || e;
layer.on('click', this._removeLayer, this);
},
_disableLayerDelete: function (e) {
var layer = e.layer || e.target || e;
layer.off('click', this._removeLayer, this);
// Remove from the deleted layers so we can't accidently revert if the user presses cancel
this._deletedLayers.removeLayer(layer);
},
_removeLayer: function (e) {
var layer = e.layer || e.target || e;
this._deletableLayers.removeLayer(layer);
this._deletedLayers.addLayer(layer);
layer.fire('deleted');
},
_onMouseMove: function (e) {
this._tooltip.updatePosition(e.latlng);
},
_hasAvailableLayers: function () {
return this._deletableLayers.getLayers().length !== 0;
}
});
}(window, document));
/* ================================================================== */
/* Toolbars
/* ================================================================== */
.leaflet-draw-section {
position: relative;
}
.leaflet-draw-toolbar {
margin-top: 12px;
}
.leaflet-draw-toolbar-top {
margin-top: 0;
}
.leaflet-draw-toolbar-notop a:first-child {
border-top-right-radius: 0;
}
.leaflet-draw-toolbar-nobottom a:last-child {
border-bottom-right-radius: 0;
}
.leaflet-draw-toolbar a {
background-image: url('images/spritesheet.png');
background-repeat: no-repeat;
}
.leaflet-retina .leaflet-draw-toolbar a {
background-image: url('images/spritesheet-2x.png');
background-size: 270px 30px;
}
.leaflet-draw a {
display: block;
text-align: center;
text-decoration: none;
}
/* ================================================================== */
/* Toolbar actions menu
/* ================================================================== */
.leaflet-draw-actions {
display: none;
list-style: none;
margin: 0;
padding: 0;
position: absolute;
left: 26px; /* leaflet-draw-toolbar.left + leaflet-draw-toolbar.width */
top: 0;
white-space: nowrap;
}
.leaflet-touch .leaflet-draw-actions {
left: 32px;
}
.leaflet-right .leaflet-draw-actions {
right:26px;
left:auto;
}
.leaflet-touch .leaflet-right .leaflet-draw-actions {
right:32px;
left:auto;
}
.leaflet-draw-actions li {
display: inline-block;
}
.leaflet-draw-actions li:first-child a {
border-left: none;
}
.leaflet-draw-actions li:last-child a {
-webkit-border-radius: 0 4px 4px 0;
border-radius: 0 4px 4px 0;
}
.leaflet-right .leaflet-draw-actions li:last-child a {
-webkit-border-radius: 0;
border-radius: 0;
}
.leaflet-right .leaflet-draw-actions li:first-child a {
-webkit-border-radius: 4px 0 0 4px;
border-radius: 4px 0 0 4px;
}
.leaflet-draw-actions a {
background-color: #919187;
border-left: 1px solid #AAA;
color: #FFF;
font: 11px/19px "Helvetica Neue", Arial, Helvetica, sans-serif;
line-height: 28px;
text-decoration: none;
padding-left: 10px;
padding-right: 10px;
height: 28px;
}
.leaflet-touch .leaflet-draw-actions a {
font-size: 12px;
line-height: 30px;
height: 30px;
}
.leaflet-draw-actions-bottom {
margin-top: 0;
}
.leaflet-draw-actions-top {
margin-top: 1px;
}
.leaflet-draw-actions-top a,
.leaflet-draw-actions-bottom a {
height: 27px;
line-height: 27px;
}
.leaflet-draw-actions a:hover {
background-color: #A0A098;
}
.leaflet-draw-actions-top.leaflet-draw-actions-bottom a {
height: 26px;
line-height: 26px;
}
/* ================================================================== */
/* Draw toolbar
/* ================================================================== */
.leaflet-draw-toolbar .leaflet-draw-draw-polyline {
background-position: -2px -2px;
}
.leaflet-touch .leaflet-draw-toolbar .leaflet-draw-draw-polyline {
background-position: 0 -1px;
}
.leaflet-draw-toolbar .leaflet-draw-draw-polygon {
background-position: -31px -2px;
}
.leaflet-touch .leaflet-draw-toolbar .leaflet-draw-draw-polygon {
background-position: -29px -1px;
}
.leaflet-draw-toolbar .leaflet-draw-draw-rectangle {
background-position: -62px -2px;
}
.leaflet-touch .leaflet-draw-toolbar .leaflet-draw-draw-rectangle {
background-position: -60px -1px;
}
.leaflet-draw-toolbar .leaflet-draw-draw-circle {
background-position: -92px -2px;
}
.leaflet-touch .leaflet-draw-toolbar .leaflet-draw-draw-circle {
background-position: -90px -1px;
}
.leaflet-draw-toolbar .leaflet-draw-draw-marker {
background-position: -122px -2px;
}
.leaflet-touch .leaflet-draw-toolbar .leaflet-draw-draw-marker {
background-position: -120px -1px;
}
/* ================================================================== */
/* Edit toolbar
/* ================================================================== */
.leaflet-draw-toolbar .leaflet-draw-edit-edit {
background-position: -152px -2px;
}
.leaflet-touch .leaflet-draw-toolbar .leaflet-draw-edit-edit {
background-position: -150px -1px;
}
.leaflet-draw-toolbar .leaflet-draw-edit-remove {
background-position: -182px -2px;
}
.leaflet-touch .leaflet-draw-toolbar .leaflet-draw-edit-remove {
background-position: -180px -1px;
}
.leaflet-draw-toolbar .leaflet-draw-edit-edit.leaflet-disabled {
background-position: -212px -2px;
}
.leaflet-touch .leaflet-draw-toolbar .leaflet-draw-edit-edit.leaflet-disabled {
background-position: -210px -1px;
}
.leaflet-draw-toolbar .leaflet-draw-edit-remove.leaflet-disabled {
background-position: -242px -2px;
}
.leaflet-touch .leaflet-draw-toolbar .leaflet-draw-edit-remove.leaflet-disabled {
background-position: -240px -2px;
}
/* ================================================================== */
/* Drawing styles
/* ================================================================== */
.leaflet-mouse-marker {
background-color: #fff;
cursor: crosshair;
}
.leaflet-draw-tooltip {
background: rgb(54, 54, 54);
background: rgba(0, 0, 0, 0.5);
border: 1px solid transparent;
-webkit-border-radius: 4px;
border-radius: 4px;
color: #fff;
font: 12px/18px "Helvetica Neue", Arial, Helvetica, sans-serif;
margin-left: 20px;
margin-top: -21px;
padding: 4px 8px;
position: absolute;
visibility: hidden;
white-space: nowrap;
z-index: 6;
}
.leaflet-draw-tooltip:before {
border-right: 6px solid black;
border-right-color: rgba(0, 0, 0, 0.5);
border-top: 6px solid transparent;
border-bottom: 6px solid transparent;
content: "";
position: absolute;
top: 7px;
left: -7px;
}
.leaflet-error-draw-tooltip {
background-color: #F2DEDE;
border: 1px solid #E6B6BD;
color: #B94A48;
}
.leaflet-error-draw-tooltip:before {
border-right-color: #E6B6BD;
}
.leaflet-draw-tooltip-single {
margin-top: -12px
}
.leaflet-draw-tooltip-subtext {
color: #f8d5e4;
}
.leaflet-draw-guide-dash {
font-size: 1%;
opacity: 0.6;
position: absolute;
width: 5px;
height: 5px;
}
/* ================================================================== */
/* Edit styles
/* ================================================================== */
.leaflet-edit-marker-selected {
background: rgba(254, 87, 161, 0.1);
border: 4px dashed rgba(254, 87, 161, 0.6);
-webkit-border-radius: 4px;
border-radius: 4px;
}
.leaflet-edit-move {
cursor: move;
}
.leaflet-edit-resize {
cursor: pointer;
}
/* ================================================================== */
/* Old IE styles
/* ================================================================== */
.leaflet-oldie .leaflet-draw-toolbar {
border: 1px solid #999;
}