7518 lines
168 KiB
JavaScript
7518 lines
168 KiB
JavaScript
/*
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Copyright (c) 2010-2012, CloudMade, Vladimir Agafonkin
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Leaflet is an open-source JavaScript library for mobile-friendly interactive maps.
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http://leaflet.cloudmade.com
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*/
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(function (window, undefined) {
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var L, originalL;
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if (typeof exports !== undefined + '') {
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L = exports;
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} else {
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originalL = window.L;
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L = {};
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L.noConflict = function () {
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window.L = originalL;
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return this;
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};
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window.L = L;
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}
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L.version = '0.4.4';
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/*
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* L.Util is a namespace for various utility functions.
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*/
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L.Util = {
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extend: function (/*Object*/ dest) /*-> Object*/ { // merge src properties into dest
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var sources = Array.prototype.slice.call(arguments, 1);
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for (var j = 0, len = sources.length, src; j < len; j++) {
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src = sources[j] || {};
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for (var i in src) {
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if (src.hasOwnProperty(i)) {
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dest[i] = src[i];
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}
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}
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}
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return dest;
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},
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bind: function (fn, obj) { // (Function, Object) -> Function
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var args = arguments.length > 2 ? Array.prototype.slice.call(arguments, 2) : null;
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return function () {
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return fn.apply(obj, args || arguments);
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};
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},
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stamp: (function () {
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var lastId = 0, key = '_leaflet_id';
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return function (/*Object*/ obj) {
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obj[key] = obj[key] || ++lastId;
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return obj[key];
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};
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}()),
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limitExecByInterval: function (fn, time, context) {
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var lock, execOnUnlock;
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return function wrapperFn() {
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var args = arguments;
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if (lock) {
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execOnUnlock = true;
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return;
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}
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lock = true;
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setTimeout(function () {
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lock = false;
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if (execOnUnlock) {
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wrapperFn.apply(context, args);
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execOnUnlock = false;
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}
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}, time);
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fn.apply(context, args);
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};
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},
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falseFn: function () {
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return false;
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},
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formatNum: function (num, digits) {
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var pow = Math.pow(10, digits || 5);
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return Math.round(num * pow) / pow;
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},
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splitWords: function (str) {
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return str.replace(/^\s+|\s+$/g, '').split(/\s+/);
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},
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setOptions: function (obj, options) {
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obj.options = L.Util.extend({}, obj.options, options);
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return obj.options;
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},
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getParamString: function (obj) {
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var params = [];
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for (var i in obj) {
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if (obj.hasOwnProperty(i)) {
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params.push(i + '=' + obj[i]);
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}
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}
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return '?' + params.join('&');
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},
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template: function (str, data) {
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return str.replace(/\{ *([\w_]+) *\}/g, function (str, key) {
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var value = data[key];
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if (!data.hasOwnProperty(key)) {
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throw new Error('No value provided for variable ' + str);
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}
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return value;
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});
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},
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emptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='
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};
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(function () {
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// inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/
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function getPrefixed(name) {
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var i, fn,
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prefixes = ['webkit', 'moz', 'o', 'ms'];
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for (i = 0; i < prefixes.length && !fn; i++) {
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fn = window[prefixes[i] + name];
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}
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return fn;
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}
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var lastTime = 0;
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function timeoutDefer(fn) {
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var time = +new Date(),
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timeToCall = Math.max(0, 16 - (time - lastTime));
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lastTime = time + timeToCall;
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return window.setTimeout(fn, timeToCall);
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}
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var requestFn = window.requestAnimationFrame ||
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getPrefixed('RequestAnimationFrame') || timeoutDefer;
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var cancelFn = window.cancelAnimationFrame ||
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getPrefixed('CancelAnimationFrame') ||
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getPrefixed('CancelRequestAnimationFrame') ||
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function (id) {
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window.clearTimeout(id);
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};
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L.Util.requestAnimFrame = function (fn, context, immediate, element) {
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fn = L.Util.bind(fn, context);
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if (immediate && requestFn === timeoutDefer) {
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fn();
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} else {
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return requestFn.call(window, fn, element);
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}
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};
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L.Util.cancelAnimFrame = function (id) {
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if (id) {
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cancelFn.call(window, id);
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}
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};
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}());
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/*
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* Class powers the OOP facilities of the library. Thanks to John Resig and Dean Edwards for inspiration!
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*/
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L.Class = function () {};
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L.Class.extend = function (/*Object*/ props) /*-> Class*/ {
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// extended class with the new prototype
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var NewClass = function () {
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if (this.initialize) {
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this.initialize.apply(this, arguments);
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}
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};
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// instantiate class without calling constructor
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var F = function () {};
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F.prototype = this.prototype;
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var proto = new F();
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proto.constructor = NewClass;
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NewClass.prototype = proto;
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//inherit parent's statics
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for (var i in this) {
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if (this.hasOwnProperty(i) && i !== 'prototype') {
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NewClass[i] = this[i];
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}
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}
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// mix static properties into the class
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if (props.statics) {
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L.Util.extend(NewClass, props.statics);
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delete props.statics;
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}
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// mix includes into the prototype
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if (props.includes) {
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L.Util.extend.apply(null, [proto].concat(props.includes));
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delete props.includes;
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}
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// merge options
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if (props.options && proto.options) {
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props.options = L.Util.extend({}, proto.options, props.options);
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}
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// mix given properties into the prototype
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L.Util.extend(proto, props);
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return NewClass;
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};
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// method for adding properties to prototype
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L.Class.include = function (props) {
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L.Util.extend(this.prototype, props);
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};
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L.Class.mergeOptions = function (options) {
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L.Util.extend(this.prototype.options, options);
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};
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/*
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* L.Mixin.Events adds custom events functionality to Leaflet classes
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*/
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var key = '_leaflet_events';
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L.Mixin = {};
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L.Mixin.Events = {
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addEventListener: function (types, fn, context) { // (String, Function[, Object]) or (Object[, Object])
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var events = this[key] = this[key] || {},
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type, i, len;
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// Types can be a map of types/handlers
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if (typeof types === 'object') {
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for (type in types) {
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if (types.hasOwnProperty(type)) {
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this.addEventListener(type, types[type], fn);
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}
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}
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return this;
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}
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types = L.Util.splitWords(types);
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for (i = 0, len = types.length; i < len; i++) {
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events[types[i]] = events[types[i]] || [];
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events[types[i]].push({
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action: fn,
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context: context || this
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});
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}
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return this;
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},
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hasEventListeners: function (type) { // (String) -> Boolean
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return (key in this) && (type in this[key]) && (this[key][type].length > 0);
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},
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removeEventListener: function (types, fn, context) { // (String[, Function, Object]) or (Object[, Object])
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var events = this[key],
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type, i, len, listeners, j;
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if (typeof types === 'object') {
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for (type in types) {
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if (types.hasOwnProperty(type)) {
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this.removeEventListener(type, types[type], fn);
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}
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}
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return this;
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}
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types = L.Util.splitWords(types);
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for (i = 0, len = types.length; i < len; i++) {
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if (this.hasEventListeners(types[i])) {
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listeners = events[types[i]];
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for (j = listeners.length - 1; j >= 0; j--) {
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if (
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(!fn || listeners[j].action === fn) &&
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(!context || (listeners[j].context === context))
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) {
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listeners.splice(j, 1);
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}
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}
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}
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}
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return this;
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},
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fireEvent: function (type, data) { // (String[, Object])
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if (!this.hasEventListeners(type)) {
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return this;
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}
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var event = L.Util.extend({
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type: type,
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target: this
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}, data);
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var listeners = this[key][type].slice();
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for (var i = 0, len = listeners.length; i < len; i++) {
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listeners[i].action.call(listeners[i].context || this, event);
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}
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return this;
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}
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};
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L.Mixin.Events.on = L.Mixin.Events.addEventListener;
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L.Mixin.Events.off = L.Mixin.Events.removeEventListener;
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L.Mixin.Events.fire = L.Mixin.Events.fireEvent;
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(function () {
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var ua = navigator.userAgent.toLowerCase(),
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ie = !!window.ActiveXObject,
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ie6 = ie && !window.XMLHttpRequest,
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webkit = ua.indexOf("webkit") !== -1,
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gecko = ua.indexOf("gecko") !== -1,
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//Terrible browser detection to work around a safari / iOS / android browser bug. See TileLayer._addTile and debug/hacks/jitter.html
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chrome = ua.indexOf("chrome") !== -1,
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opera = window.opera,
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android = ua.indexOf("android") !== -1,
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android23 = ua.search("android [23]") !== -1,
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mobile = typeof orientation !== undefined + '' ? true : false,
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doc = document.documentElement,
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ie3d = ie && ('transition' in doc.style),
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webkit3d = webkit && ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()),
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gecko3d = gecko && ('MozPerspective' in doc.style),
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opera3d = opera && ('OTransition' in doc.style);
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var touch = !window.L_NO_TOUCH && (function () {
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var startName = 'ontouchstart';
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// WebKit, etc
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if (startName in doc) {
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return true;
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}
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// Firefox/Gecko
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var div = document.createElement('div'),
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supported = false;
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if (!div.setAttribute) {
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return false;
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}
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div.setAttribute(startName, 'return;');
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if (typeof div[startName] === 'function') {
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supported = true;
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}
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div.removeAttribute(startName);
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div = null;
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return supported;
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}());
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var retina = (('devicePixelRatio' in window && window.devicePixelRatio > 1) || ('matchMedia' in window && window.matchMedia("(min-resolution:144dpi)").matches));
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L.Browser = {
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ua: ua,
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ie: ie,
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ie6: ie6,
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webkit: webkit,
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gecko: gecko,
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opera: opera,
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android: android,
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android23: android23,
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chrome: chrome,
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ie3d: ie3d,
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webkit3d: webkit3d,
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gecko3d: gecko3d,
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opera3d: opera3d,
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any3d: !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d || opera3d),
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mobile: mobile,
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mobileWebkit: mobile && webkit,
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mobileWebkit3d: mobile && webkit3d,
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mobileOpera: mobile && opera,
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touch: touch,
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retina: retina
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};
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}());
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/*
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* L.Point represents a point with x and y coordinates.
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*/
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L.Point = function (/*Number*/ x, /*Number*/ y, /*Boolean*/ round) {
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this.x = (round ? Math.round(x) : x);
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this.y = (round ? Math.round(y) : y);
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};
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L.Point.prototype = {
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add: function (point) {
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return this.clone()._add(L.point(point));
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},
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_add: function (point) {
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this.x += point.x;
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this.y += point.y;
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return this;
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},
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subtract: function (point) {
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return this.clone()._subtract(L.point(point));
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},
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// destructive subtract (faster)
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_subtract: function (point) {
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this.x -= point.x;
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this.y -= point.y;
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return this;
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},
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divideBy: function (num, round) {
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return new L.Point(this.x / num, this.y / num, round);
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},
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multiplyBy: function (num, round) {
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return new L.Point(this.x * num, this.y * num, round);
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},
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distanceTo: function (point) {
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point = L.point(point);
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var x = point.x - this.x,
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y = point.y - this.y;
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return Math.sqrt(x * x + y * y);
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},
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round: function () {
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return this.clone()._round();
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},
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// destructive round
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_round: function () {
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this.x = Math.round(this.x);
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this.y = Math.round(this.y);
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return this;
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},
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floor: function () {
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return this.clone()._floor();
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},
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_floor: function () {
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this.x = Math.floor(this.x);
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this.y = Math.floor(this.y);
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return this;
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},
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clone: function () {
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return new L.Point(this.x, this.y);
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},
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toString: function () {
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return 'Point(' +
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L.Util.formatNum(this.x) + ', ' +
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L.Util.formatNum(this.y) + ')';
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}
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};
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L.point = function (x, y, round) {
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if (x instanceof L.Point) {
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return x;
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}
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if (x instanceof Array) {
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return new L.Point(x[0], x[1]);
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}
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if (isNaN(x)) {
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return x;
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}
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return new L.Point(x, y, round);
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};
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/*
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* L.Bounds represents a rectangular area on the screen in pixel coordinates.
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*/
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L.Bounds = L.Class.extend({
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initialize: function (a, b) { //(Point, Point) or Point[]
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if (!a) { return; }
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var points = b ? [a, b] : a;
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for (var i = 0, len = points.length; i < len; i++) {
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this.extend(points[i]);
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}
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},
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// extend the bounds to contain the given point
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extend: function (point) { // (Point)
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point = L.point(point);
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if (!this.min && !this.max) {
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this.min = point.clone();
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this.max = point.clone();
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} else {
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this.min.x = Math.min(point.x, this.min.x);
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this.max.x = Math.max(point.x, this.max.x);
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this.min.y = Math.min(point.y, this.min.y);
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this.max.y = Math.max(point.y, this.max.y);
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}
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return this;
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},
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getCenter: function (round) { // (Boolean) -> Point
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return new L.Point(
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(this.min.x + this.max.x) / 2,
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(this.min.y + this.max.y) / 2, round);
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},
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getBottomLeft: function () { // -> Point
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return new L.Point(this.min.x, this.max.y);
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},
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getTopRight: function () { // -> Point
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return new L.Point(this.max.x, this.min.y);
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},
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contains: function (obj) { // (Bounds) or (Point) -> Boolean
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var min, max;
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if (typeof obj[0] === 'number' || obj instanceof L.Point) {
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obj = L.point(obj);
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} else {
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obj = L.bounds(obj);
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}
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if (obj instanceof L.Bounds) {
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min = obj.min;
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max = obj.max;
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} else {
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min = max = obj;
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}
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return (min.x >= this.min.x) &&
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(max.x <= this.max.x) &&
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(min.y >= this.min.y) &&
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(max.y <= this.max.y);
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},
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intersects: function (bounds) { // (Bounds) -> Boolean
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bounds = L.bounds(bounds);
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var min = this.min,
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max = this.max,
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min2 = bounds.min,
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max2 = bounds.max;
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|
|
var xIntersects = (max2.x >= min.x) && (min2.x <= max.x),
|
|
yIntersects = (max2.y >= min.y) && (min2.y <= max.y);
|
|
|
|
return xIntersects && yIntersects;
|
|
}
|
|
|
|
});
|
|
|
|
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 = L.Class.extend({
|
|
initialize: function (/*Number*/ a, /*Number*/ b, /*Number*/ c, /*Number*/ d) {
|
|
this._a = a;
|
|
this._b = b;
|
|
this._c = c;
|
|
this._d = d;
|
|
},
|
|
|
|
transform: function (point, scale) {
|
|
return this._transform(point.clone(), scale);
|
|
},
|
|
|
|
// destructive transform (faster)
|
|
_transform: function (/*Point*/ point, /*Number*/ scale) /*-> Point*/ {
|
|
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*/ point, /*Number*/ scale) /*-> Point*/ {
|
|
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];
|
|
if (!value && el.currentStyle) {
|
|
value = el.currentStyle[style];
|
|
}
|
|
if (!value || value === 'auto') {
|
|
var css = document.defaultView.getComputedStyle(el, null);
|
|
value = css ? css[style] : null;
|
|
}
|
|
return (value === 'auto' ? null : value);
|
|
},
|
|
|
|
getViewportOffset: function (element) {
|
|
var top = 0,
|
|
left = 0,
|
|
el = element,
|
|
docBody = document.body;
|
|
|
|
do {
|
|
top += el.offsetTop || 0;
|
|
left += el.offsetLeft || 0;
|
|
|
|
if (el.offsetParent === docBody &&
|
|
L.DomUtil.getStyle(el, 'position') === 'absolute') {
|
|
break;
|
|
}
|
|
if (L.DomUtil.getStyle(el, 'position') === 'fixed') {
|
|
top += docBody.scrollTop || 0;
|
|
left += docBody.scrollLeft || 0;
|
|
break;
|
|
}
|
|
|
|
el = el.offsetParent;
|
|
} while (el);
|
|
|
|
el = element;
|
|
|
|
do {
|
|
if (el === docBody) {
|
|
break;
|
|
}
|
|
|
|
top -= el.scrollTop || 0;
|
|
left -= el.scrollLeft || 0;
|
|
|
|
el = el.parentNode;
|
|
} while (el);
|
|
|
|
return new L.Point(left, top);
|
|
},
|
|
|
|
create: function (tagName, className, container) {
|
|
var el = document.createElement(tagName);
|
|
el.className = className;
|
|
if (container) {
|
|
container.appendChild(el);
|
|
}
|
|
return el;
|
|
},
|
|
|
|
disableTextSelection: function () {
|
|
if (document.selection && document.selection.empty) {
|
|
document.selection.empty();
|
|
}
|
|
if (!this._onselectstart) {
|
|
this._onselectstart = document.onselectstart;
|
|
document.onselectstart = L.Util.falseFn;
|
|
}
|
|
},
|
|
|
|
enableTextSelection: function () {
|
|
document.onselectstart = this._onselectstart;
|
|
this._onselectstart = null;
|
|
},
|
|
|
|
hasClass: function (el, name) {
|
|
return (el.className.length > 0) &&
|
|
new RegExp("(^|\\s)" + name + "(\\s|$)").test(el.className);
|
|
},
|
|
|
|
addClass: function (el, name) {
|
|
if (!L.DomUtil.hasClass(el, name)) {
|
|
el.className += (el.className ? ' ' : '') + name;
|
|
}
|
|
},
|
|
|
|
removeClass: function (el, name) {
|
|
function replaceFn(w, match) {
|
|
if (match === name) {
|
|
return '';
|
|
}
|
|
return w;
|
|
}
|
|
el.className = el.className
|
|
.replace(/(\S+)\s*/g, replaceFn)
|
|
.replace(/(^\s+|\s+$)/, '');
|
|
},
|
|
|
|
setOpacity: function (el, value) {
|
|
|
|
if ('opacity' in el.style) {
|
|
el.style.opacity = value;
|
|
|
|
} else if (L.Browser.ie) {
|
|
|
|
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) {}
|
|
|
|
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;
|
|
},
|
|
|
|
getTranslateString: function (point) {
|
|
// On webkit browsers (Chrome/Safari/MobileSafari/Android) using translate3d instead of translate
|
|
// makes animation smoother as it ensures HW accel is used. Firefox 13 doesn't care
|
|
// (same speed either way), Opera 12 doesn't support translate3d
|
|
|
|
var is3d = L.Browser.webkit3d,
|
|
open = 'translate' + (is3d ? '3d' : '') + '(',
|
|
close = (is3d ? ',0' : '') + ')';
|
|
|
|
return open + point.x + 'px,' + point.y + 'px' + close;
|
|
},
|
|
|
|
getScaleString: function (scale, origin) {
|
|
var preTranslateStr = L.DomUtil.getTranslateString(origin),
|
|
scaleStr = ' scale(' + scale + ') ',
|
|
postTranslateStr = L.DomUtil.getTranslateString(origin.multiplyBy(-1));
|
|
|
|
return preTranslateStr + scaleStr + postTranslateStr;
|
|
},
|
|
|
|
setPosition: function (el, point, disable3D) {
|
|
el._leaflet_pos = point;
|
|
if (!disable3D && L.Browser.any3d) {
|
|
el.style[L.DomUtil.TRANSFORM] = L.DomUtil.getTranslateString(point);
|
|
|
|
// workaround for Android 2/3 stability (https://github.com/CloudMade/Leaflet/issues/69)
|
|
if (L.Browser.mobileWebkit3d) {
|
|
el.style.WebkitBackfaceVisibility = 'hidden';
|
|
}
|
|
} else {
|
|
el.style.left = point.x + 'px';
|
|
el.style.top = point.y + 'px';
|
|
}
|
|
},
|
|
|
|
getPosition: function (el) {
|
|
return el._leaflet_pos;
|
|
}
|
|
};
|
|
|
|
L.Util.extend(L.DomUtil, {
|
|
TRANSITION: L.DomUtil.testProp(['transition', 'webkitTransition', 'OTransition', 'MozTransition', 'msTransition']),
|
|
TRANSFORM: L.DomUtil.testProp(['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform'])
|
|
});
|
|
|
|
L.DomUtil.TRANSITION_END = (L.DomUtil.TRANSITION === 'webkitTransition' || L.DomUtil.TRANSITION === 'OTransition' ?
|
|
L.DomUtil.TRANSITION + 'End' : 'transitionend');
|
|
|
|
|
|
/*
|
|
CM.LatLng represents a geographical point with latitude and longtitude coordinates.
|
|
*/
|
|
|
|
L.LatLng = function (rawLat, rawLng, noWrap) { // (Number, Number[, Boolean])
|
|
var lat = parseFloat(rawLat),
|
|
lng = parseFloat(rawLng);
|
|
|
|
if (isNaN(lat) || isNaN(lng)) {
|
|
throw new Error('Invalid LatLng object: (' + rawLat + ', ' + rawLng + ')');
|
|
}
|
|
|
|
if (noWrap !== true) {
|
|
lat = Math.max(Math.min(lat, 90), -90); // clamp latitude into -90..90
|
|
lng = (lng + 180) % 360 + ((lng < -180 || lng === 180) ? 180 : -180); // wrap longtitude into -180..180
|
|
}
|
|
|
|
this.lat = lat;
|
|
this.lng = lng;
|
|
};
|
|
|
|
L.Util.extend(L.LatLng, {
|
|
DEG_TO_RAD: Math.PI / 180,
|
|
RAD_TO_DEG: 180 / Math.PI,
|
|
MAX_MARGIN: 1.0E-9 // max margin of error for the "equals" check
|
|
});
|
|
|
|
L.LatLng.prototype = {
|
|
equals: function (obj) { // (LatLng) -> Boolean
|
|
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 <= L.LatLng.MAX_MARGIN;
|
|
},
|
|
|
|
toString: function () { // -> String
|
|
return 'LatLng(' +
|
|
L.Util.formatNum(this.lat) + ', ' +
|
|
L.Util.formatNum(this.lng) + ')';
|
|
},
|
|
|
|
// Haversine distance formula, see http://en.wikipedia.org/wiki/Haversine_formula
|
|
distanceTo: function (other) { // (LatLng) -> Number
|
|
other = L.latLng(other);
|
|
|
|
var R = 6378137, // earth radius in meters
|
|
d2r = L.LatLng.DEG_TO_RAD,
|
|
dLat = (other.lat - this.lat) * d2r,
|
|
dLon = (other.lng - this.lng) * d2r,
|
|
lat1 = this.lat * d2r,
|
|
lat2 = other.lat * d2r,
|
|
sin1 = Math.sin(dLat / 2),
|
|
sin2 = Math.sin(dLon / 2);
|
|
|
|
var a = sin1 * sin1 + sin2 * sin2 * Math.cos(lat1) * Math.cos(lat2);
|
|
|
|
return R * 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
|
|
}
|
|
};
|
|
|
|
L.latLng = function (a, b, c) { // (LatLng) or ([Number, Number]) or (Number, Number, Boolean)
|
|
if (a instanceof L.LatLng) {
|
|
return a;
|
|
}
|
|
if (a instanceof Array) {
|
|
return new L.LatLng(a[0], a[1]);
|
|
}
|
|
if (isNaN(a)) {
|
|
return a;
|
|
}
|
|
return new L.LatLng(a, b, c);
|
|
};
|
|
|
|
|
|
/*
|
|
* L.LatLngBounds represents a rectangular area on the map in geographical coordinates.
|
|
*/
|
|
|
|
L.LatLngBounds = L.Class.extend({
|
|
initialize: 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]);
|
|
}
|
|
},
|
|
|
|
// extend the bounds to contain the given point or bounds
|
|
extend: function (obj) { // (LatLng) or (LatLngBounds)
|
|
if (typeof obj[0] === 'number' || obj instanceof L.LatLng) {
|
|
obj = L.latLng(obj);
|
|
} else {
|
|
obj = L.latLngBounds(obj);
|
|
}
|
|
|
|
if (obj instanceof L.LatLng) {
|
|
if (!this._southWest && !this._northEast) {
|
|
this._southWest = new L.LatLng(obj.lat, obj.lng, true);
|
|
this._northEast = new L.LatLng(obj.lat, obj.lng, true);
|
|
} else {
|
|
this._southWest.lat = Math.min(obj.lat, this._southWest.lat);
|
|
this._southWest.lng = Math.min(obj.lng, this._southWest.lng);
|
|
|
|
this._northEast.lat = Math.max(obj.lat, this._northEast.lat);
|
|
this._northEast.lng = Math.max(obj.lng, this._northEast.lng);
|
|
}
|
|
} else if (obj instanceof L.LatLngBounds) {
|
|
this.extend(obj._southWest);
|
|
this.extend(obj._northEast);
|
|
}
|
|
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._northEast.lat, this._southWest.lng, true);
|
|
},
|
|
|
|
getSouthEast: function () {
|
|
return new L.LatLng(this._southWest.lat, this._northEast.lng, true);
|
|
},
|
|
|
|
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();
|
|
|
|
var latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat),
|
|
lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng);
|
|
|
|
return latIntersects && lngIntersects;
|
|
},
|
|
|
|
toBBoxString: function () {
|
|
var sw = this._southWest,
|
|
ne = this._northEast;
|
|
return [sw.lng, sw.lat, ne.lng, ne.lat].join(',');
|
|
},
|
|
|
|
equals: function (bounds) { // (LatLngBounds)
|
|
if (!bounds) { return false; }
|
|
|
|
bounds = L.latLngBounds(bounds);
|
|
|
|
return this._southWest.equals(bounds.getSouthWest()) &&
|
|
this._northEast.equals(bounds.getNorthEast());
|
|
}
|
|
});
|
|
|
|
//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);
|
|
};
|
|
|
|
|
|
/*
|
|
* L.Projection contains various geographical projections used by CRS classes.
|
|
*/
|
|
|
|
L.Projection = {};
|
|
|
|
|
|
|
|
L.Projection.SphericalMercator = {
|
|
MAX_LATITUDE: 85.0511287798,
|
|
|
|
project: function (latlng) { // (LatLng) -> Point
|
|
var d = L.LatLng.DEG_TO_RAD,
|
|
max = this.MAX_LATITUDE,
|
|
lat = Math.max(Math.min(max, latlng.lat), -max),
|
|
x = latlng.lng * d,
|
|
y = lat * d;
|
|
y = Math.log(Math.tan((Math.PI / 4) + (y / 2)));
|
|
|
|
return new L.Point(x, y);
|
|
},
|
|
|
|
unproject: function (point) { // (Point, Boolean) -> LatLng
|
|
var d = L.LatLng.RAD_TO_DEG,
|
|
lng = point.x * d,
|
|
lat = (2 * Math.atan(Math.exp(point.y)) - (Math.PI / 2)) * d;
|
|
|
|
// TODO refactor LatLng wrapping
|
|
return new L.LatLng(lat, lng, true);
|
|
}
|
|
};
|
|
|
|
|
|
|
|
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, true);
|
|
}
|
|
};
|
|
|
|
|
|
|
|
L.CRS = {
|
|
latLngToPoint: function (latlng, zoom) { // (LatLng, Number) -> Point
|
|
var projectedPoint = this.projection.project(latlng),
|
|
scale = this.scale(zoom);
|
|
|
|
return this.transformation._transform(projectedPoint, scale);
|
|
},
|
|
|
|
pointToLatLng: function (point, zoom) { // (Point, Number[, Boolean]) -> LatLng
|
|
var scale = this.scale(zoom),
|
|
untransformedPoint = this.transformation.untransform(point, scale);
|
|
|
|
return this.projection.unproject(untransformedPoint);
|
|
},
|
|
|
|
project: function (latlng) {
|
|
return this.projection.project(latlng);
|
|
},
|
|
|
|
scale: function (zoom) {
|
|
return 256 * Math.pow(2, zoom);
|
|
}
|
|
};
|
|
|
|
|
|
|
|
L.CRS.EPSG3857 = L.Util.extend({}, L.CRS, {
|
|
code: 'EPSG:3857',
|
|
|
|
projection: L.Projection.SphericalMercator,
|
|
transformation: new L.Transformation(0.5 / Math.PI, 0.5, -0.5 / Math.PI, 0.5),
|
|
|
|
project: function (latlng) { // (LatLng) -> Point
|
|
var projectedPoint = this.projection.project(latlng),
|
|
earthRadius = 6378137;
|
|
return projectedPoint.multiplyBy(earthRadius);
|
|
}
|
|
});
|
|
|
|
L.CRS.EPSG900913 = L.Util.extend({}, L.CRS.EPSG3857, {
|
|
code: 'EPSG:900913'
|
|
});
|
|
|
|
|
|
|
|
L.CRS.EPSG4326 = L.Util.extend({}, L.CRS, {
|
|
code: 'EPSG:4326',
|
|
|
|
projection: L.Projection.LonLat,
|
|
transformation: new L.Transformation(1 / 360, 0.5, -1 / 360, 0.5)
|
|
});
|
|
|
|
|
|
/*
|
|
* L.Map is the central class of the API - it is used to create a map.
|
|
*/
|
|
|
|
L.Map = L.Class.extend({
|
|
|
|
includes: L.Mixin.Events,
|
|
|
|
options: {
|
|
crs: L.CRS.EPSG3857,
|
|
|
|
/*
|
|
center: LatLng,
|
|
zoom: Number,
|
|
layers: Array,
|
|
*/
|
|
|
|
fadeAnimation: L.DomUtil.TRANSITION && !L.Browser.android23,
|
|
trackResize: true,
|
|
markerZoomAnimation: L.DomUtil.TRANSITION && L.Browser.any3d
|
|
},
|
|
|
|
initialize: function (id, options) { // (HTMLElement or String, Object)
|
|
options = L.Util.setOptions(this, options);
|
|
|
|
this._initContainer(id);
|
|
this._initLayout();
|
|
this._initHooks();
|
|
this._initEvents();
|
|
|
|
if (options.maxBounds) {
|
|
this.setMaxBounds(options.maxBounds);
|
|
}
|
|
|
|
if (options.center && options.zoom !== undefined) {
|
|
this.setView(L.latLng(options.center), options.zoom, true);
|
|
}
|
|
|
|
this._initLayers(options.layers);
|
|
},
|
|
|
|
|
|
// public methods that modify map state
|
|
|
|
// replaced by animation-powered implementation in Map.PanAnimation.js
|
|
setView: function (center, zoom) {
|
|
this._resetView(L.latLng(center), this._limitZoom(zoom));
|
|
return this;
|
|
},
|
|
|
|
setZoom: function (zoom) { // (Number)
|
|
return this.setView(this.getCenter(), zoom);
|
|
},
|
|
|
|
zoomIn: function () {
|
|
return this.setZoom(this._zoom + 1);
|
|
},
|
|
|
|
zoomOut: function () {
|
|
return this.setZoom(this._zoom - 1);
|
|
},
|
|
|
|
fitBounds: function (bounds) { // (LatLngBounds)
|
|
var zoom = this.getBoundsZoom(bounds);
|
|
return this.setView(L.latLngBounds(bounds).getCenter(), zoom);
|
|
},
|
|
|
|
fitWorld: function () {
|
|
var sw = new L.LatLng(-60, -170),
|
|
ne = new L.LatLng(85, 179);
|
|
|
|
return this.fitBounds(new L.LatLngBounds(sw, ne));
|
|
},
|
|
|
|
panTo: function (center) { // (LatLng)
|
|
return this.setView(center, this._zoom);
|
|
},
|
|
|
|
panBy: function (offset) { // (Point)
|
|
// replaced with animated panBy in Map.Animation.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) {
|
|
this._boundsMinZoom = null;
|
|
return this;
|
|
}
|
|
|
|
var minZoom = this.getBoundsZoom(bounds, true);
|
|
|
|
this._boundsMinZoom = minZoom;
|
|
|
|
if (this._loaded) {
|
|
if (this._zoom < minZoom) {
|
|
this.setView(bounds.getCenter(), minZoom);
|
|
} else {
|
|
this.panInsideBounds(bounds);
|
|
}
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
panInsideBounds: function (bounds) {
|
|
bounds = L.latLngBounds(bounds);
|
|
|
|
var viewBounds = this.getBounds(),
|
|
viewSw = this.project(viewBounds.getSouthWest()),
|
|
viewNe = this.project(viewBounds.getNorthEast()),
|
|
sw = this.project(bounds.getSouthWest()),
|
|
ne = this.project(bounds.getNorthEast()),
|
|
dx = 0,
|
|
dy = 0;
|
|
|
|
if (viewNe.y < ne.y) { // north
|
|
dy = ne.y - viewNe.y;
|
|
}
|
|
if (viewNe.x > ne.x) { // east
|
|
dx = ne.x - viewNe.x;
|
|
}
|
|
if (viewSw.y > sw.y) { // south
|
|
dy = sw.y - viewSw.y;
|
|
}
|
|
if (viewSw.x < sw.x) { // west
|
|
dx = sw.x - viewSw.x;
|
|
}
|
|
|
|
return this.panBy(new L.Point(dx, dy, true));
|
|
},
|
|
|
|
addLayer: function (layer) {
|
|
// TODO method is too big, refactor
|
|
|
|
var id = L.Util.stamp(layer);
|
|
|
|
if (this._layers[id]) { return this; }
|
|
|
|
this._layers[id] = layer;
|
|
|
|
// TODO getMaxZoom, getMinZoom in ILayer (instead of options)
|
|
if (layer.options && !isNaN(layer.options.maxZoom)) {
|
|
this._layersMaxZoom = Math.max(this._layersMaxZoom || 0, layer.options.maxZoom);
|
|
}
|
|
if (layer.options && !isNaN(layer.options.minZoom)) {
|
|
this._layersMinZoom = Math.min(this._layersMinZoom || Infinity, layer.options.minZoom);
|
|
}
|
|
|
|
// TODO looks ugly, refactor!!!
|
|
if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) {
|
|
this._tileLayersNum++;
|
|
this._tileLayersToLoad++;
|
|
layer.on('load', this._onTileLayerLoad, this);
|
|
}
|
|
|
|
var onMapLoad = function () {
|
|
layer.onAdd(this);
|
|
this.fire('layeradd', {layer: layer});
|
|
};
|
|
|
|
if (this._loaded) {
|
|
onMapLoad.call(this);
|
|
} else {
|
|
this.on('load', onMapLoad, this);
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
removeLayer: function (layer) {
|
|
var id = L.Util.stamp(layer);
|
|
|
|
if (!this._layers[id]) { return; }
|
|
|
|
layer.onRemove(this);
|
|
|
|
delete this._layers[id];
|
|
|
|
// TODO looks ugly, refactor
|
|
if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) {
|
|
this._tileLayersNum--;
|
|
this._tileLayersToLoad--;
|
|
layer.off('load', this._onTileLayerLoad, this);
|
|
}
|
|
|
|
return this.fire('layerremove', {layer: layer});
|
|
},
|
|
|
|
hasLayer: function (layer) {
|
|
var id = L.Util.stamp(layer);
|
|
return this._layers.hasOwnProperty(id);
|
|
},
|
|
|
|
invalidateSize: function (animate) {
|
|
var oldSize = this.getSize();
|
|
|
|
this._sizeChanged = true;
|
|
|
|
if (this.options.maxBounds) {
|
|
this.setMaxBounds(this.options.maxBounds);
|
|
}
|
|
|
|
if (!this._loaded) { return this; }
|
|
|
|
var offset = oldSize.subtract(this.getSize()).divideBy(2, true);
|
|
|
|
if (animate === true) {
|
|
this.panBy(offset);
|
|
} else {
|
|
this._rawPanBy(offset);
|
|
|
|
this.fire('move');
|
|
|
|
clearTimeout(this._sizeTimer);
|
|
this._sizeTimer = setTimeout(L.Util.bind(this.fire, this, 'moveend'), 200);
|
|
}
|
|
return this;
|
|
},
|
|
|
|
// TODO handler.addTo
|
|
addHandler: function (name, HandlerClass) {
|
|
if (!HandlerClass) { return; }
|
|
|
|
this[name] = new HandlerClass(this);
|
|
|
|
if (this.options[name]) {
|
|
this[name].enable();
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
|
|
// public methods for getting map state
|
|
|
|
getCenter: function () { // (Boolean) -> LatLng
|
|
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 () {
|
|
var z1 = this.options.minZoom || 0,
|
|
z2 = this._layersMinZoom || 0,
|
|
z3 = this._boundsMinZoom || 0;
|
|
|
|
return Math.max(z1, z2, z3);
|
|
},
|
|
|
|
getMaxZoom: function () {
|
|
var z1 = this.options.maxZoom === undefined ? Infinity : this.options.maxZoom,
|
|
z2 = this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom;
|
|
|
|
return Math.min(z1, z2);
|
|
},
|
|
|
|
getBoundsZoom: function (bounds, inside) { // (LatLngBounds, Boolean) -> Number
|
|
bounds = L.latLngBounds(bounds);
|
|
|
|
var size = this.getSize(),
|
|
zoom = this.options.minZoom || 0,
|
|
maxZoom = this.getMaxZoom(),
|
|
ne = bounds.getNorthEast(),
|
|
sw = bounds.getSouthWest(),
|
|
boundsSize,
|
|
nePoint,
|
|
swPoint,
|
|
zoomNotFound = true;
|
|
|
|
if (inside) {
|
|
zoom--;
|
|
}
|
|
|
|
do {
|
|
zoom++;
|
|
nePoint = this.project(ne, zoom);
|
|
swPoint = this.project(sw, zoom);
|
|
boundsSize = new L.Point(Math.abs(nePoint.x - swPoint.x), Math.abs(swPoint.y - nePoint.y));
|
|
|
|
if (!inside) {
|
|
zoomNotFound = boundsSize.x <= size.x && boundsSize.y <= size.y;
|
|
} else {
|
|
zoomNotFound = 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;
|
|
},
|
|
|
|
getPixelBounds: function () {
|
|
var topLeftPoint = this._getTopLeftPoint();
|
|
return new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize()));
|
|
},
|
|
|
|
getPixelOrigin: function () {
|
|
return this._initialTopLeftPoint;
|
|
},
|
|
|
|
getPanes: function () {
|
|
return this._panes;
|
|
},
|
|
|
|
getContainer: function () {
|
|
return this._container;
|
|
},
|
|
|
|
|
|
// TODO replace with universal implementation after refactoring projections
|
|
|
|
getZoomScale: function (toZoom) {
|
|
var crs = this.options.crs;
|
|
return crs.scale(toZoom) / crs.scale(this._zoom);
|
|
},
|
|
|
|
getScaleZoom: function (scale) {
|
|
return this._zoom + (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._initialTopLeftPoint);
|
|
return this.unproject(projectedPoint);
|
|
},
|
|
|
|
latLngToLayerPoint: function (latlng) { // (LatLng)
|
|
var projectedPoint = this.project(L.latLng(latlng))._round();
|
|
return projectedPoint._subtract(this._initialTopLeftPoint);
|
|
},
|
|
|
|
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._leaflet) {
|
|
throw new Error("Map container is already initialized.");
|
|
}
|
|
|
|
container._leaflet = true;
|
|
},
|
|
|
|
_initLayout: function () {
|
|
var container = this._container;
|
|
|
|
container.innerHTML = '';
|
|
L.DomUtil.addClass(container, 'leaflet-container');
|
|
|
|
if (L.Browser.touch) {
|
|
L.DomUtil.addClass(container, 'leaflet-touch');
|
|
}
|
|
|
|
if (this.options.fadeAnimation) {
|
|
L.DomUtil.addClass(container, '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 = panes.mapPane = this._createPane('leaflet-map-pane', this._container);
|
|
|
|
this._tilePane = panes.tilePane = this._createPane('leaflet-tile-pane', this._mapPane);
|
|
this._objectsPane = panes.objectsPane = this._createPane('leaflet-objects-pane', this._mapPane);
|
|
|
|
panes.shadowPane = this._createPane('leaflet-shadow-pane');
|
|
panes.overlayPane = this._createPane('leaflet-overlay-pane');
|
|
panes.markerPane = this._createPane('leaflet-marker-pane');
|
|
panes.popupPane = this._createPane('leaflet-popup-pane');
|
|
|
|
var zoomHide = ' leaflet-zoom-hide';
|
|
|
|
if (!this.options.markerZoomAnimation) {
|
|
L.DomUtil.addClass(panes.markerPane, zoomHide);
|
|
L.DomUtil.addClass(panes.shadowPane, zoomHide);
|
|
L.DomUtil.addClass(panes.popupPane, zoomHide);
|
|
}
|
|
},
|
|
|
|
_createPane: function (className, container) {
|
|
return L.DomUtil.create('div', className, container || this._objectsPane);
|
|
},
|
|
|
|
_initializers: [],
|
|
|
|
_initHooks: function () {
|
|
var i, len;
|
|
for (i = 0, len = this._initializers.length; i < len; i++) {
|
|
this._initializers[i].call(this);
|
|
}
|
|
},
|
|
|
|
_initLayers: function (layers) {
|
|
layers = layers ? (layers instanceof Array ? layers : [layers]) : [];
|
|
|
|
this._layers = {};
|
|
this._tileLayersNum = 0;
|
|
|
|
var i, len;
|
|
|
|
for (i = 0, len = layers.length; i < len; i++) {
|
|
this.addLayer(layers[i]);
|
|
}
|
|
},
|
|
|
|
|
|
// 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._initialTopLeftPoint = this._getNewTopLeftPoint(center);
|
|
|
|
if (!preserveMapOffset) {
|
|
L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));
|
|
} else {
|
|
this._initialTopLeftPoint._add(this._getMapPanePos());
|
|
}
|
|
|
|
this._tileLayersToLoad = this._tileLayersNum;
|
|
|
|
this.fire('viewreset', {hard: !preserveMapOffset});
|
|
|
|
this.fire('move');
|
|
|
|
if (zoomChanged || afterZoomAnim) {
|
|
this.fire('zoomend');
|
|
}
|
|
|
|
this.fire('moveend', {hard: !preserveMapOffset});
|
|
|
|
if (!this._loaded) {
|
|
this._loaded = true;
|
|
this.fire('load');
|
|
}
|
|
},
|
|
|
|
_rawPanBy: function (offset) {
|
|
L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset));
|
|
},
|
|
|
|
|
|
// map events
|
|
|
|
_initEvents: function () {
|
|
if (!L.DomEvent) { return; }
|
|
|
|
L.DomEvent.on(this._container, 'click', this._onMouseClick, this);
|
|
|
|
var events = ['dblclick', 'mousedown', 'mouseup', 'mouseenter', 'mouseleave', 'mousemove', 'contextmenu'],
|
|
i, len;
|
|
|
|
for (i = 0, len = events.length; i < len; i++) {
|
|
L.DomEvent.on(this._container, events[i], this._fireMouseEvent, this);
|
|
}
|
|
|
|
if (this.options.trackResize) {
|
|
L.DomEvent.on(window, 'resize', this._onResize, this);
|
|
}
|
|
},
|
|
|
|
_onResize: function () {
|
|
L.Util.cancelAnimFrame(this._resizeRequest);
|
|
this._resizeRequest = L.Util.requestAnimFrame(this.invalidateSize, this, false, this._container);
|
|
},
|
|
|
|
_onMouseClick: function (e) {
|
|
if (!this._loaded || (this.dragging && this.dragging.moved())) { return; }
|
|
|
|
this.fire('preclick');
|
|
this._fireMouseEvent(e);
|
|
},
|
|
|
|
_fireMouseEvent: function (e) {
|
|
if (!this._loaded) { return; }
|
|
|
|
var type = e.type;
|
|
|
|
type = (type === 'mouseenter' ? 'mouseover' : (type === 'mouseleave' ? 'mouseout' : type));
|
|
|
|
if (!this.hasEventListeners(type)) { return; }
|
|
|
|
if (type === 'contextmenu') {
|
|
L.DomEvent.preventDefault(e);
|
|
}
|
|
|
|
var containerPoint = this.mouseEventToContainerPoint(e),
|
|
layerPoint = this.containerPointToLayerPoint(containerPoint),
|
|
latlng = this.layerPointToLatLng(layerPoint);
|
|
|
|
this.fire(type, {
|
|
latlng: latlng,
|
|
layerPoint: layerPoint,
|
|
containerPoint: containerPoint,
|
|
originalEvent: e
|
|
});
|
|
},
|
|
|
|
_onTileLayerLoad: function () {
|
|
// TODO super-ugly, refactor!!!
|
|
// clear scaled tiles after all new tiles are loaded (for performance)
|
|
this._tileLayersToLoad--;
|
|
if (this._tileLayersNum && !this._tileLayersToLoad && this._tileBg) {
|
|
clearTimeout(this._clearTileBgTimer);
|
|
this._clearTileBgTimer = setTimeout(L.Util.bind(this._clearTileBg, this), 500);
|
|
}
|
|
},
|
|
|
|
|
|
// private methods for getting map state
|
|
|
|
_getMapPanePos: function () {
|
|
return L.DomUtil.getPosition(this._mapPane);
|
|
},
|
|
|
|
_getTopLeftPoint: function () {
|
|
if (!this._loaded) {
|
|
throw new Error('Set map center and zoom first.');
|
|
}
|
|
|
|
return this._initialTopLeftPoint.subtract(this._getMapPanePos());
|
|
},
|
|
|
|
_getNewTopLeftPoint: 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)._round();
|
|
},
|
|
|
|
_latLngToNewLayerPoint: function (latlng, newZoom, newCenter) {
|
|
var topLeft = this._getNewTopLeftPoint(newCenter, newZoom).add(this._getMapPanePos());
|
|
return this.project(latlng, newZoom)._subtract(topLeft);
|
|
},
|
|
|
|
_getCenterLayerPoint: function () {
|
|
return this.containerPointToLayerPoint(this.getSize().divideBy(2));
|
|
},
|
|
|
|
_getCenterOffset: function (center) {
|
|
return this.latLngToLayerPoint(center).subtract(this._getCenterLayerPoint());
|
|
},
|
|
|
|
_limitZoom: function (zoom) {
|
|
var min = this.getMinZoom(),
|
|
max = this.getMaxZoom();
|
|
|
|
return Math.max(min, Math.min(max, zoom));
|
|
}
|
|
});
|
|
|
|
L.Map.addInitHook = function (fn) {
|
|
var args = Array.prototype.slice.call(arguments, 1);
|
|
|
|
var init = typeof fn === 'function' ? fn : function () {
|
|
this[fn].apply(this, args);
|
|
};
|
|
|
|
this.prototype._initializers.push(init);
|
|
};
|
|
|
|
L.map = function (id, options) {
|
|
return new L.Map(id, options);
|
|
};
|
|
|
|
|
|
|
|
L.Projection.Mercator = {
|
|
MAX_LATITUDE: 85.0840591556,
|
|
|
|
R_MINOR: 6356752.3142,
|
|
R_MAJOR: 6378137,
|
|
|
|
project: function (latlng) { // (LatLng) -> Point
|
|
var d = L.LatLng.DEG_TO_RAD,
|
|
max = this.MAX_LATITUDE,
|
|
lat = Math.max(Math.min(max, latlng.lat), -max),
|
|
r = this.R_MAJOR,
|
|
r2 = this.R_MINOR,
|
|
x = latlng.lng * d * r,
|
|
y = lat * d,
|
|
tmp = r2 / r,
|
|
eccent = Math.sqrt(1.0 - tmp * tmp),
|
|
con = eccent * Math.sin(y);
|
|
|
|
con = Math.pow((1 - con) / (1 + con), eccent * 0.5);
|
|
|
|
var ts = Math.tan(0.5 * ((Math.PI * 0.5) - y)) / con;
|
|
y = -r2 * Math.log(ts);
|
|
|
|
return new L.Point(x, y);
|
|
},
|
|
|
|
unproject: function (point) { // (Point, Boolean) -> LatLng
|
|
var d = L.LatLng.RAD_TO_DEG,
|
|
r = this.R_MAJOR,
|
|
r2 = this.R_MINOR,
|
|
lng = point.x * d / r,
|
|
tmp = r2 / r,
|
|
eccent = Math.sqrt(1 - (tmp * tmp)),
|
|
ts = Math.exp(- point.y / r2),
|
|
phi = (Math.PI / 2) - 2 * Math.atan(ts),
|
|
numIter = 15,
|
|
tol = 1e-7,
|
|
i = numIter,
|
|
dphi = 0.1,
|
|
con;
|
|
|
|
while ((Math.abs(dphi) > tol) && (--i > 0)) {
|
|
con = eccent * Math.sin(phi);
|
|
dphi = (Math.PI / 2) - 2 * Math.atan(ts * Math.pow((1.0 - con) / (1.0 + con), 0.5 * eccent)) - phi;
|
|
phi += dphi;
|
|
}
|
|
|
|
return new L.LatLng(phi * d, lng, true);
|
|
}
|
|
};
|
|
|
|
|
|
|
|
L.CRS.EPSG3395 = L.Util.extend({}, L.CRS, {
|
|
code: 'EPSG:3395',
|
|
|
|
projection: L.Projection.Mercator,
|
|
|
|
transformation: (function () {
|
|
var m = L.Projection.Mercator,
|
|
r = m.R_MAJOR,
|
|
r2 = m.R_MINOR;
|
|
|
|
return new L.Transformation(0.5 / (Math.PI * r), 0.5, -0.5 / (Math.PI * r2), 0.5);
|
|
}())
|
|
});
|
|
|
|
|
|
/*
|
|
* L.TileLayer is used for standard xyz-numbered tile layers.
|
|
*/
|
|
|
|
L.TileLayer = L.Class.extend({
|
|
includes: L.Mixin.Events,
|
|
|
|
options: {
|
|
minZoom: 0,
|
|
maxZoom: 18,
|
|
tileSize: 256,
|
|
subdomains: 'abc',
|
|
errorTileUrl: '',
|
|
attribution: '',
|
|
zoomOffset: 0,
|
|
opacity: 1,
|
|
/* (undefined works too)
|
|
zIndex: null,
|
|
tms: false,
|
|
continuousWorld: false,
|
|
noWrap: false,
|
|
zoomReverse: false,
|
|
detectRetina: false,
|
|
reuseTiles: false,
|
|
*/
|
|
unloadInvisibleTiles: L.Browser.mobile,
|
|
updateWhenIdle: L.Browser.mobile
|
|
},
|
|
|
|
initialize: function (url, options) {
|
|
options = L.Util.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++;
|
|
|
|
if (options.minZoom > 0) {
|
|
options.minZoom--;
|
|
}
|
|
this.options.maxZoom--;
|
|
}
|
|
|
|
this._url = url;
|
|
|
|
var subdomains = this.options.subdomains;
|
|
|
|
if (typeof subdomains === 'string') {
|
|
this.options.subdomains = subdomains.split('');
|
|
}
|
|
},
|
|
|
|
onAdd: function (map) {
|
|
this._map = map;
|
|
|
|
// create a container div for tiles
|
|
this._initContainer();
|
|
|
|
// create an image to clone for tiles
|
|
this._createTileProto();
|
|
|
|
// set up events
|
|
map.on({
|
|
'viewreset': this._resetCallback,
|
|
'moveend': this._update
|
|
}, this);
|
|
|
|
if (!this.options.updateWhenIdle) {
|
|
this._limitedUpdate = L.Util.limitExecByInterval(this._update, 150, this);
|
|
map.on('move', this._limitedUpdate, this);
|
|
}
|
|
|
|
this._reset();
|
|
this._update();
|
|
},
|
|
|
|
addTo: function (map) {
|
|
map.addLayer(this);
|
|
return this;
|
|
},
|
|
|
|
onRemove: function (map) {
|
|
map._panes.tilePane.removeChild(this._container);
|
|
|
|
map.off({
|
|
'viewreset': this._resetCallback,
|
|
'moveend': this._update
|
|
}, this);
|
|
|
|
if (!this.options.updateWhenIdle) {
|
|
map.off('move', this._limitedUpdate, this);
|
|
}
|
|
|
|
this._container = null;
|
|
this._map = null;
|
|
},
|
|
|
|
bringToFront: function () {
|
|
var pane = this._map._panes.tilePane;
|
|
|
|
if (this._container) {
|
|
pane.appendChild(this._container);
|
|
this._setAutoZIndex(pane, Math.max);
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
bringToBack: function () {
|
|
var pane = this._map._panes.tilePane;
|
|
|
|
if (this._container) {
|
|
pane.insertBefore(this._container, pane.firstChild);
|
|
this._setAutoZIndex(pane, Math.min);
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
getAttribution: function () {
|
|
return this.options.attribution;
|
|
},
|
|
|
|
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;
|
|
},
|
|
|
|
setUrl: function (url, noRedraw) {
|
|
this._url = url;
|
|
|
|
if (!noRedraw) {
|
|
this.redraw();
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
redraw: function () {
|
|
if (this._map) {
|
|
this._map._panes.tilePane.empty = false;
|
|
this._reset(true);
|
|
this._update();
|
|
}
|
|
return this;
|
|
},
|
|
|
|
_updateZIndex: function () {
|
|
if (this._container && this.options.zIndex !== undefined) {
|
|
this._container.style.zIndex = this.options.zIndex;
|
|
}
|
|
},
|
|
|
|
_setAutoZIndex: function (pane, compare) {
|
|
|
|
var layers = pane.getElementsByClassName('leaflet-layer'),
|
|
edgeZIndex = -compare(Infinity, -Infinity), // -Ifinity for max, Infinity for min
|
|
zIndex;
|
|
|
|
for (var i = 0, len = layers.length; i < len; i++) {
|
|
|
|
if (layers[i] !== this._container) {
|
|
zIndex = parseInt(layers[i].style.zIndex, 10);
|
|
|
|
if (!isNaN(zIndex)) {
|
|
edgeZIndex = compare(edgeZIndex, zIndex);
|
|
}
|
|
}
|
|
}
|
|
|
|
this._container.style.zIndex = isFinite(edgeZIndex) ? edgeZIndex + compare(1, -1) : '';
|
|
},
|
|
|
|
_updateOpacity: function () {
|
|
L.DomUtil.setOpacity(this._container, this.options.opacity);
|
|
|
|
// stupid webkit hack to force redrawing of tiles
|
|
var i,
|
|
tiles = this._tiles;
|
|
|
|
if (L.Browser.webkit) {
|
|
for (i in tiles) {
|
|
if (tiles.hasOwnProperty(i)) {
|
|
tiles[i].style.webkitTransform += ' translate(0,0)';
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
_initContainer: function () {
|
|
var tilePane = this._map._panes.tilePane;
|
|
|
|
if (!this._container || tilePane.empty) {
|
|
this._container = L.DomUtil.create('div', 'leaflet-layer');
|
|
|
|
this._updateZIndex();
|
|
|
|
tilePane.appendChild(this._container);
|
|
|
|
if (this.options.opacity < 1) {
|
|
this._updateOpacity();
|
|
}
|
|
}
|
|
},
|
|
|
|
_resetCallback: function (e) {
|
|
this._reset(e.hard);
|
|
},
|
|
|
|
_reset: function (clearOldContainer) {
|
|
var key,
|
|
tiles = this._tiles;
|
|
|
|
for (key in tiles) {
|
|
if (tiles.hasOwnProperty(key)) {
|
|
this.fire('tileunload', {tile: tiles[key]});
|
|
}
|
|
}
|
|
|
|
this._tiles = {};
|
|
this._tilesToLoad = 0;
|
|
|
|
if (this.options.reuseTiles) {
|
|
this._unusedTiles = [];
|
|
}
|
|
|
|
if (clearOldContainer && this._container) {
|
|
this._container.innerHTML = "";
|
|
}
|
|
|
|
this._initContainer();
|
|
},
|
|
|
|
_update: function (e) {
|
|
if (this._map._panTransition && this._map._panTransition._inProgress) { return; }
|
|
|
|
var bounds = this._map.getPixelBounds(),
|
|
zoom = this._map.getZoom(),
|
|
tileSize = this.options.tileSize;
|
|
|
|
if (zoom > this.options.maxZoom || zoom < this.options.minZoom) {
|
|
return;
|
|
}
|
|
|
|
var nwTilePoint = new L.Point(
|
|
Math.floor(bounds.min.x / tileSize),
|
|
Math.floor(bounds.min.y / tileSize)),
|
|
seTilePoint = new L.Point(
|
|
Math.floor(bounds.max.x / tileSize),
|
|
Math.floor(bounds.max.y / tileSize)),
|
|
tileBounds = new L.Bounds(nwTilePoint, seTilePoint);
|
|
|
|
this._addTilesFromCenterOut(tileBounds);
|
|
|
|
if (this.options.unloadInvisibleTiles || this.options.reuseTiles) {
|
|
this._removeOtherTiles(tileBounds);
|
|
}
|
|
},
|
|
|
|
_addTilesFromCenterOut: function (bounds) {
|
|
var queue = [],
|
|
center = bounds.getCenter();
|
|
|
|
var j, i, point;
|
|
|
|
for (j = bounds.min.y; j <= bounds.max.y; j++) {
|
|
for (i = bounds.min.x; i <= bounds.max.x; i++) {
|
|
point = new L.Point(i, j);
|
|
|
|
if (this._tileShouldBeLoaded(point)) {
|
|
queue.push(point);
|
|
}
|
|
}
|
|
}
|
|
|
|
var tilesToLoad = queue.length;
|
|
|
|
if (tilesToLoad === 0) { return; }
|
|
|
|
// load tiles in order of their distance to center
|
|
queue.sort(function (a, b) {
|
|
return a.distanceTo(center) - b.distanceTo(center);
|
|
});
|
|
|
|
var fragment = document.createDocumentFragment();
|
|
|
|
// if its the first batch of tiles to load
|
|
if (!this._tilesToLoad) {
|
|
this.fire('loading');
|
|
}
|
|
|
|
this._tilesToLoad += tilesToLoad;
|
|
|
|
for (i = 0; i < tilesToLoad; i++) {
|
|
this._addTile(queue[i], fragment);
|
|
}
|
|
|
|
this._container.appendChild(fragment);
|
|
},
|
|
|
|
_tileShouldBeLoaded: function (tilePoint) {
|
|
if ((tilePoint.x + ':' + tilePoint.y) in this._tiles) {
|
|
return false; // already loaded
|
|
}
|
|
|
|
if (!this.options.continuousWorld) {
|
|
var limit = this._getWrapTileNum();
|
|
|
|
if (this.options.noWrap && (tilePoint.x < 0 || tilePoint.x >= limit) ||
|
|
tilePoint.y < 0 || tilePoint.y >= limit) {
|
|
return false; // exceeds world bounds
|
|
}
|
|
}
|
|
|
|
return true;
|
|
},
|
|
|
|
_removeOtherTiles: function (bounds) {
|
|
var kArr, x, y, key;
|
|
|
|
for (key in this._tiles) {
|
|
if (this._tiles.hasOwnProperty(key)) {
|
|
kArr = key.split(':');
|
|
x = parseInt(kArr[0], 10);
|
|
y = parseInt(kArr[1], 10);
|
|
|
|
// remove tile if it's out of bounds
|
|
if (x < bounds.min.x || x > bounds.max.x || y < bounds.min.y || y > bounds.max.y) {
|
|
this._removeTile(key);
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
_removeTile: function (key) {
|
|
var tile = this._tiles[key];
|
|
|
|
this.fire("tileunload", {tile: tile, url: tile.src});
|
|
|
|
if (this.options.reuseTiles) {
|
|
L.DomUtil.removeClass(tile, 'leaflet-tile-loaded');
|
|
this._unusedTiles.push(tile);
|
|
} else if (tile.parentNode === this._container) {
|
|
this._container.removeChild(tile);
|
|
}
|
|
|
|
if (!L.Browser.android) { //For https://github.com/CloudMade/Leaflet/issues/137
|
|
tile.src = L.Util.emptyImageUrl;
|
|
}
|
|
|
|
delete this._tiles[key];
|
|
},
|
|
|
|
_addTile: function (tilePoint, container) {
|
|
var tilePos = this._getTilePos(tilePoint);
|
|
|
|
// get unused tile - or create a new tile
|
|
var tile = this._getTile();
|
|
|
|
// Chrome 20 layouts much faster with top/left (Verify with timeline, frames)
|
|
// android 4 browser has display issues with top/left and requires transform instead
|
|
// android 3 browser not tested
|
|
// android 2 browser requires top/left or tiles disappear on load or first drag (reappear after zoom) https://github.com/CloudMade/Leaflet/issues/866
|
|
// (other browsers don't currently care) - see debug/hacks/jitter.html for an example
|
|
L.DomUtil.setPosition(tile, tilePos, L.Browser.chrome || L.Browser.android23);
|
|
|
|
this._tiles[tilePoint.x + ':' + tilePoint.y] = tile;
|
|
|
|
this._loadTile(tile, tilePoint);
|
|
|
|
if (tile.parentNode !== this._container) {
|
|
container.appendChild(tile);
|
|
}
|
|
},
|
|
|
|
_getZoomForUrl: function () {
|
|
|
|
var options = this.options,
|
|
zoom = this._map.getZoom();
|
|
|
|
if (options.zoomReverse) {
|
|
zoom = options.maxZoom - zoom;
|
|
}
|
|
|
|
return zoom + options.zoomOffset;
|
|
},
|
|
|
|
_getTilePos: function (tilePoint) {
|
|
var origin = this._map.getPixelOrigin(),
|
|
tileSize = this.options.tileSize;
|
|
|
|
return tilePoint.multiplyBy(tileSize).subtract(origin);
|
|
},
|
|
|
|
// image-specific code (override to implement e.g. Canvas or SVG tile layer)
|
|
|
|
getTileUrl: function (tilePoint) {
|
|
this._adjustTilePoint(tilePoint);
|
|
|
|
return L.Util.template(this._url, L.Util.extend({
|
|
s: this._getSubdomain(tilePoint),
|
|
z: this._getZoomForUrl(),
|
|
x: tilePoint.x,
|
|
y: tilePoint.y
|
|
}, this.options));
|
|
},
|
|
|
|
_getWrapTileNum: function () {
|
|
// TODO refactor, limit is not valid for non-standard projections
|
|
return Math.pow(2, this._getZoomForUrl());
|
|
},
|
|
|
|
_adjustTilePoint: function (tilePoint) {
|
|
|
|
var limit = this._getWrapTileNum();
|
|
|
|
// wrap tile coordinates
|
|
if (!this.options.continuousWorld && !this.options.noWrap) {
|
|
tilePoint.x = ((tilePoint.x % limit) + limit) % limit;
|
|
}
|
|
|
|
if (this.options.tms) {
|
|
tilePoint.y = limit - tilePoint.y - 1;
|
|
}
|
|
},
|
|
|
|
_getSubdomain: function (tilePoint) {
|
|
var index = (tilePoint.x + tilePoint.y) % this.options.subdomains.length;
|
|
return this.options.subdomains[index];
|
|
},
|
|
|
|
_createTileProto: function () {
|
|
var img = this._tileImg = L.DomUtil.create('img', 'leaflet-tile');
|
|
img.galleryimg = 'no';
|
|
|
|
var tileSize = this.options.tileSize;
|
|
img.style.width = tileSize + 'px';
|
|
img.style.height = tileSize + 'px';
|
|
},
|
|
|
|
_getTile: function () {
|
|
if (this.options.reuseTiles && this._unusedTiles.length > 0) {
|
|
var tile = this._unusedTiles.pop();
|
|
this._resetTile(tile);
|
|
return tile;
|
|
}
|
|
return this._createTile();
|
|
},
|
|
|
|
_resetTile: function (tile) {
|
|
// Override if data stored on a tile needs to be cleaned up before reuse
|
|
},
|
|
|
|
_createTile: function () {
|
|
var tile = this._tileImg.cloneNode(false);
|
|
tile.onselectstart = tile.onmousemove = L.Util.falseFn;
|
|
return tile;
|
|
},
|
|
|
|
_loadTile: function (tile, tilePoint) {
|
|
tile._layer = this;
|
|
tile.onload = this._tileOnLoad;
|
|
tile.onerror = this._tileOnError;
|
|
|
|
tile.src = this.getTileUrl(tilePoint);
|
|
},
|
|
|
|
_tileLoaded: function () {
|
|
this._tilesToLoad--;
|
|
if (!this._tilesToLoad) {
|
|
this.fire('load');
|
|
}
|
|
},
|
|
|
|
_tileOnLoad: function (e) {
|
|
var layer = this._layer;
|
|
|
|
//Only if we are loading an actual image
|
|
if (this.src !== L.Util.emptyImageUrl) {
|
|
L.DomUtil.addClass(this, 'leaflet-tile-loaded');
|
|
|
|
layer.fire('tileload', {
|
|
tile: this,
|
|
url: this.src
|
|
});
|
|
}
|
|
|
|
layer._tileLoaded();
|
|
},
|
|
|
|
_tileOnError: function (e) {
|
|
var layer = this._layer;
|
|
|
|
layer.fire('tileerror', {
|
|
tile: this,
|
|
url: this.src
|
|
});
|
|
|
|
var newUrl = layer.options.errorTileUrl;
|
|
if (newUrl) {
|
|
this.src = newUrl;
|
|
}
|
|
|
|
layer._tileLoaded();
|
|
}
|
|
});
|
|
|
|
L.tileLayer = function (url, options) {
|
|
return new L.TileLayer(url, options);
|
|
};
|
|
|
|
|
|
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) { // (String, Object)
|
|
|
|
this._url = url;
|
|
|
|
var wmsParams = L.Util.extend({}, this.defaultWmsParams);
|
|
|
|
if (options.detectRetina && L.Browser.retina) {
|
|
wmsParams.width = wmsParams.height = this.options.tileSize * 2;
|
|
} else {
|
|
wmsParams.width = wmsParams.height = this.options.tileSize;
|
|
}
|
|
|
|
for (var i in options) {
|
|
// all keys that are not TileLayer options go to WMS params
|
|
if (!this.options.hasOwnProperty(i)) {
|
|
wmsParams[i] = options[i];
|
|
}
|
|
}
|
|
|
|
this.wmsParams = wmsParams;
|
|
|
|
L.Util.setOptions(this, options);
|
|
},
|
|
|
|
onAdd: function (map) {
|
|
|
|
var projectionKey = parseFloat(this.wmsParams.version) >= 1.3 ? 'crs' : 'srs';
|
|
this.wmsParams[projectionKey] = map.options.crs.code;
|
|
|
|
L.TileLayer.prototype.onAdd.call(this, map);
|
|
},
|
|
|
|
getTileUrl: function (tilePoint, zoom) { // (Point, Number) -> String
|
|
|
|
var map = this._map,
|
|
crs = map.options.crs,
|
|
tileSize = this.options.tileSize,
|
|
|
|
nwPoint = tilePoint.multiplyBy(tileSize),
|
|
sePoint = nwPoint.add(new L.Point(tileSize, tileSize)),
|
|
|
|
nw = crs.project(map.unproject(nwPoint, zoom)),
|
|
se = crs.project(map.unproject(sePoint, zoom)),
|
|
|
|
bbox = [nw.x, se.y, se.x, nw.y].join(','),
|
|
|
|
url = L.Util.template(this._url, {s: this._getSubdomain(tilePoint)});
|
|
|
|
return url + L.Util.getParamString(this.wmsParams) + "&bbox=" + bbox;
|
|
},
|
|
|
|
setParams: function (params, noRedraw) {
|
|
|
|
L.Util.extend(this.wmsParams, params);
|
|
|
|
if (!noRedraw) {
|
|
this.redraw();
|
|
}
|
|
|
|
return this;
|
|
}
|
|
});
|
|
|
|
L.tileLayer.wms = function (url, options) {
|
|
return new L.TileLayer.WMS(url, options);
|
|
};
|
|
|
|
|
|
L.TileLayer.Canvas = L.TileLayer.extend({
|
|
options: {
|
|
async: false
|
|
},
|
|
|
|
initialize: function (options) {
|
|
L.Util.setOptions(this, options);
|
|
},
|
|
|
|
redraw: function () {
|
|
var i,
|
|
tiles = this._tiles;
|
|
|
|
for (i in tiles) {
|
|
if (tiles.hasOwnProperty(i)) {
|
|
this._redrawTile(tiles[i]);
|
|
}
|
|
}
|
|
},
|
|
|
|
_redrawTile: function (tile) {
|
|
this.drawTile(tile, tile._tilePoint, tile._zoom);
|
|
},
|
|
|
|
_createTileProto: function () {
|
|
var proto = this._canvasProto = L.DomUtil.create('canvas', 'leaflet-tile');
|
|
|
|
var tileSize = this.options.tileSize;
|
|
proto.width = tileSize;
|
|
proto.height = tileSize;
|
|
},
|
|
|
|
_createTile: function () {
|
|
var tile = this._canvasProto.cloneNode(false);
|
|
tile.onselectstart = tile.onmousemove = L.Util.falseFn;
|
|
return tile;
|
|
},
|
|
|
|
_loadTile: function (tile, tilePoint, zoom) {
|
|
tile._layer = this;
|
|
tile._tilePoint = tilePoint;
|
|
tile._zoom = zoom;
|
|
|
|
this.drawTile(tile, tilePoint, zoom);
|
|
|
|
if (!this.options.async) {
|
|
this.tileDrawn(tile);
|
|
}
|
|
},
|
|
|
|
drawTile: function (tile, tilePoint, zoom) {
|
|
// override with rendering code
|
|
},
|
|
|
|
tileDrawn: function (tile) {
|
|
this._tileOnLoad.call(tile);
|
|
}
|
|
});
|
|
|
|
|
|
L.tileLayer.canvas = function (options) {
|
|
return new L.TileLayer.Canvas(options);
|
|
};
|
|
|
|
L.ImageOverlay = L.Class.extend({
|
|
includes: L.Mixin.Events,
|
|
|
|
options: {
|
|
opacity: 1
|
|
},
|
|
|
|
initialize: function (url, bounds, options) { // (String, LatLngBounds, Object)
|
|
this._url = url;
|
|
this._bounds = L.latLngBounds(bounds);
|
|
|
|
L.Util.setOptions(this, options);
|
|
},
|
|
|
|
onAdd: function (map) {
|
|
this._map = map;
|
|
|
|
if (!this._image) {
|
|
this._initImage();
|
|
}
|
|
|
|
map._panes.overlayPane.appendChild(this._image);
|
|
|
|
map.on('viewreset', this._reset, this);
|
|
|
|
if (map.options.zoomAnimation && L.Browser.any3d) {
|
|
map.on('zoomanim', this._animateZoom, this);
|
|
}
|
|
|
|
this._reset();
|
|
},
|
|
|
|
onRemove: function (map) {
|
|
map.getPanes().overlayPane.removeChild(this._image);
|
|
|
|
map.off('viewreset', this._reset, this);
|
|
|
|
if (map.options.zoomAnimation) {
|
|
map.off('zoomanim', this._animateZoom, this);
|
|
}
|
|
},
|
|
|
|
addTo: function (map) {
|
|
map.addLayer(this);
|
|
return this;
|
|
},
|
|
|
|
setOpacity: function (opacity) {
|
|
this.options.opacity = opacity;
|
|
this._updateOpacity();
|
|
return this;
|
|
},
|
|
|
|
// TODO remove bringToFront/bringToBack duplication from TileLayer/Path
|
|
bringToFront: function () {
|
|
if (this._image) {
|
|
this._map._panes.overlayPane.appendChild(this._image);
|
|
}
|
|
return this;
|
|
},
|
|
|
|
bringToBack: function () {
|
|
var pane = this._map._panes.overlayPane;
|
|
if (this._image) {
|
|
pane.insertBefore(this._image, pane.firstChild);
|
|
}
|
|
return this;
|
|
},
|
|
|
|
_initImage: function () {
|
|
this._image = L.DomUtil.create('img', 'leaflet-image-layer');
|
|
|
|
if (this._map.options.zoomAnimation && L.Browser.any3d) {
|
|
L.DomUtil.addClass(this._image, 'leaflet-zoom-animated');
|
|
} else {
|
|
L.DomUtil.addClass(this._image, 'leaflet-zoom-hide');
|
|
}
|
|
|
|
this._updateOpacity();
|
|
|
|
//TODO createImage util method to remove duplication
|
|
L.Util.extend(this._image, {
|
|
galleryimg: 'no',
|
|
onselectstart: L.Util.falseFn,
|
|
onmousemove: L.Util.falseFn,
|
|
onload: L.Util.bind(this._onImageLoad, this),
|
|
src: this._url
|
|
});
|
|
},
|
|
|
|
_animateZoom: function (e) {
|
|
var map = this._map,
|
|
image = this._image,
|
|
scale = map.getZoomScale(e.zoom),
|
|
nw = this._bounds.getNorthWest(),
|
|
se = this._bounds.getSouthEast(),
|
|
topLeft = map._latLngToNewLayerPoint(nw, e.zoom, e.center),
|
|
size = map._latLngToNewLayerPoint(se, e.zoom, e.center).subtract(topLeft),
|
|
currentSize = map.latLngToLayerPoint(se).subtract(map.latLngToLayerPoint(nw)),
|
|
origin = topLeft.add(size.subtract(currentSize).divideBy(2));
|
|
|
|
image.style[L.DomUtil.TRANSFORM] = L.DomUtil.getTranslateString(origin) + ' scale(' + scale + ') ';
|
|
},
|
|
|
|
_reset: function () {
|
|
var image = this._image,
|
|
topLeft = this._map.latLngToLayerPoint(this._bounds.getNorthWest()),
|
|
size = this._map.latLngToLayerPoint(this._bounds.getSouthEast()).subtract(topLeft);
|
|
|
|
L.DomUtil.setPosition(image, topLeft);
|
|
|
|
image.style.width = size.x + 'px';
|
|
image.style.height = size.y + 'px';
|
|
},
|
|
|
|
_onImageLoad: function () {
|
|
this.fire('load');
|
|
},
|
|
|
|
_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 = L.Class.extend({
|
|
options: {
|
|
/*
|
|
iconUrl: (String) (required)
|
|
iconSize: (Point) (can be set through CSS)
|
|
iconAnchor: (Point) (centered by default if size is specified, can be set in CSS with negative margins)
|
|
popupAnchor: (Point) (if not specified, popup opens in the anchor point)
|
|
shadowUrl: (Point) (no shadow by default)
|
|
shadowSize: (Point)
|
|
shadowAnchor: (Point)
|
|
*/
|
|
className: ''
|
|
},
|
|
|
|
initialize: function (options) {
|
|
L.Util.setOptions(this, options);
|
|
},
|
|
|
|
createIcon: function () {
|
|
return this._createIcon('icon');
|
|
},
|
|
|
|
createShadow: function () {
|
|
return this._createIcon('shadow');
|
|
},
|
|
|
|
_createIcon: function (name) {
|
|
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);
|
|
this._setIconStyles(img, name);
|
|
|
|
return img;
|
|
},
|
|
|
|
_setIconStyles: function (img, name) {
|
|
var options = this.options,
|
|
size = L.point(options[name + 'Size']),
|
|
anchor;
|
|
|
|
if (name === 'shadow') {
|
|
anchor = L.point(options.shadowAnchor || options.iconAnchor);
|
|
} else {
|
|
anchor = L.point(options.iconAnchor);
|
|
}
|
|
|
|
if (!anchor && size) {
|
|
anchor = 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) {
|
|
var el;
|
|
|
|
if (!L.Browser.ie6) {
|
|
el = document.createElement('img');
|
|
el.src = src;
|
|
} else {
|
|
el = document.createElement('div');
|
|
el.style.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src="' + src + '")';
|
|
}
|
|
return el;
|
|
},
|
|
|
|
_getIconUrl: function (name) {
|
|
return this.options[name + 'Url'];
|
|
}
|
|
});
|
|
|
|
L.icon = function (options) {
|
|
return new L.Icon(options);
|
|
};
|
|
|
|
|
|
|
|
L.Icon.Default = L.Icon.extend({
|
|
|
|
options: {
|
|
iconSize: new L.Point(25, 41),
|
|
iconAnchor: new L.Point(13, 41),
|
|
popupAnchor: new L.Point(1, -34),
|
|
|
|
shadowSize: new L.Point(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 + '.png';
|
|
}
|
|
});
|
|
|
|
L.Icon.Default.imagePath = (function () {
|
|
var scripts = document.getElementsByTagName('script'),
|
|
leafletRe = /\/?leaflet[\-\._]?([\w\-\._]*)\.js\??/;
|
|
|
|
var i, len, src, matches;
|
|
|
|
for (i = 0, len = scripts.length; i < len; i++) {
|
|
src = scripts[i].src;
|
|
matches = src.match(leafletRe);
|
|
|
|
if (matches) {
|
|
return src.split(leafletRe)[0] + '/images';
|
|
}
|
|
}
|
|
}());
|
|
|
|
|
|
/*
|
|
* L.Marker is used to display clickable/draggable icons on the map.
|
|
*/
|
|
|
|
L.Marker = L.Class.extend({
|
|
|
|
includes: L.Mixin.Events,
|
|
|
|
options: {
|
|
icon: new L.Icon.Default(),
|
|
title: '',
|
|
clickable: true,
|
|
draggable: false,
|
|
zIndexOffset: 0,
|
|
opacity: 1
|
|
},
|
|
|
|
initialize: function (latlng, options) {
|
|
L.Util.setOptions(this, options);
|
|
this._latlng = L.latLng(latlng);
|
|
},
|
|
|
|
onAdd: function (map) {
|
|
this._map = map;
|
|
|
|
map.on('viewreset', this.update, this);
|
|
|
|
this._initIcon();
|
|
this.update();
|
|
|
|
if (map.options.zoomAnimation && map.options.markerZoomAnimation) {
|
|
map.on('zoomanim', this._animateZoom, this);
|
|
}
|
|
},
|
|
|
|
addTo: function (map) {
|
|
map.addLayer(this);
|
|
return this;
|
|
},
|
|
|
|
onRemove: function (map) {
|
|
this._removeIcon();
|
|
|
|
// TODO move to Marker.Popup.js
|
|
if (this.closePopup) {
|
|
this.closePopup();
|
|
}
|
|
|
|
map.off({
|
|
'viewreset': this.update,
|
|
'zoomanim': this._animateZoom
|
|
}, this);
|
|
|
|
this._map = null;
|
|
},
|
|
|
|
getLatLng: function () {
|
|
return this._latlng;
|
|
},
|
|
|
|
setLatLng: function (latlng) {
|
|
this._latlng = L.latLng(latlng);
|
|
|
|
this.update();
|
|
|
|
if (this._popup) {
|
|
this._popup.setLatLng(latlng);
|
|
}
|
|
},
|
|
|
|
setZIndexOffset: function (offset) {
|
|
this.options.zIndexOffset = offset;
|
|
this.update();
|
|
},
|
|
|
|
setIcon: function (icon) {
|
|
if (this._map) {
|
|
this._removeIcon();
|
|
}
|
|
|
|
this.options.icon = icon;
|
|
|
|
if (this._map) {
|
|
this._initIcon();
|
|
this.update();
|
|
}
|
|
},
|
|
|
|
update: function () {
|
|
if (!this._icon) { return; }
|
|
|
|
var pos = this._map.latLngToLayerPoint(this._latlng).round();
|
|
this._setPos(pos);
|
|
},
|
|
|
|
_initIcon: function () {
|
|
var options = this.options,
|
|
map = this._map,
|
|
animation = (map.options.zoomAnimation && map.options.markerZoomAnimation),
|
|
classToAdd = animation ? 'leaflet-zoom-animated' : 'leaflet-zoom-hide',
|
|
needOpacityUpdate = false;
|
|
|
|
if (!this._icon) {
|
|
this._icon = options.icon.createIcon();
|
|
|
|
if (options.title) {
|
|
this._icon.title = options.title;
|
|
}
|
|
|
|
this._initInteraction();
|
|
needOpacityUpdate = (this.options.opacity < 1);
|
|
|
|
L.DomUtil.addClass(this._icon, classToAdd);
|
|
}
|
|
if (!this._shadow) {
|
|
this._shadow = options.icon.createShadow();
|
|
|
|
if (this._shadow) {
|
|
L.DomUtil.addClass(this._shadow, classToAdd);
|
|
needOpacityUpdate = (this.options.opacity < 1);
|
|
}
|
|
}
|
|
|
|
if (needOpacityUpdate) {
|
|
this._updateOpacity();
|
|
}
|
|
|
|
var panes = this._map._panes;
|
|
|
|
panes.markerPane.appendChild(this._icon);
|
|
|
|
if (this._shadow) {
|
|
panes.shadowPane.appendChild(this._shadow);
|
|
}
|
|
},
|
|
|
|
_removeIcon: function () {
|
|
var panes = this._map._panes;
|
|
|
|
panes.markerPane.removeChild(this._icon);
|
|
|
|
if (this._shadow) {
|
|
panes.shadowPane.removeChild(this._shadow);
|
|
}
|
|
|
|
this._icon = this._shadow = null;
|
|
},
|
|
|
|
_setPos: function (pos) {
|
|
L.DomUtil.setPosition(this._icon, pos);
|
|
|
|
if (this._shadow) {
|
|
L.DomUtil.setPosition(this._shadow, pos);
|
|
}
|
|
|
|
this._icon.style.zIndex = pos.y + this.options.zIndexOffset;
|
|
},
|
|
|
|
_animateZoom: function (opt) {
|
|
var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center);
|
|
|
|
this._setPos(pos);
|
|
},
|
|
|
|
_initInteraction: function () {
|
|
if (!this.options.clickable) {
|
|
return;
|
|
}
|
|
|
|
var icon = this._icon,
|
|
events = ['dblclick', 'mousedown', 'mouseover', 'mouseout'];
|
|
|
|
L.DomUtil.addClass(icon, 'leaflet-clickable');
|
|
L.DomEvent.on(icon, 'click', this._onMouseClick, this);
|
|
|
|
for (var i = 0; i < events.length; i++) {
|
|
L.DomEvent.on(icon, events[i], this._fireMouseEvent, this);
|
|
}
|
|
|
|
if (L.Handler.MarkerDrag) {
|
|
this.dragging = new L.Handler.MarkerDrag(this);
|
|
|
|
if (this.options.draggable) {
|
|
this.dragging.enable();
|
|
}
|
|
}
|
|
},
|
|
|
|
_onMouseClick: function (e) {
|
|
L.DomEvent.stopPropagation(e);
|
|
if (this.dragging && this.dragging.moved()) { return; }
|
|
if (this._map.dragging && this._map.dragging.moved()) { return; }
|
|
this.fire(e.type, {
|
|
originalEvent: e
|
|
});
|
|
},
|
|
|
|
_fireMouseEvent: function (e) {
|
|
this.fire(e.type, {
|
|
originalEvent: e
|
|
});
|
|
if (e.type !== 'mousedown') {
|
|
L.DomEvent.stopPropagation(e);
|
|
}
|
|
},
|
|
|
|
setOpacity: function (opacity) {
|
|
this.options.opacity = opacity;
|
|
if (this._map) {
|
|
this._updateOpacity();
|
|
}
|
|
},
|
|
|
|
_updateOpacity: function () {
|
|
L.DomUtil.setOpacity(this._icon, this.options.opacity);
|
|
if (this._shadow) {
|
|
L.DomUtil.setOpacity(this._shadow, this.options.opacity);
|
|
}
|
|
}
|
|
});
|
|
|
|
L.marker = function (latlng, options) {
|
|
return new L.Marker(latlng, options);
|
|
};
|
|
|
|
|
|
L.DivIcon = L.Icon.extend({
|
|
options: {
|
|
iconSize: new L.Point(12, 12), // also can be set through CSS
|
|
/*
|
|
iconAnchor: (Point)
|
|
popupAnchor: (Point)
|
|
html: (String)
|
|
bgPos: (Point)
|
|
*/
|
|
className: 'leaflet-div-icon'
|
|
},
|
|
|
|
createIcon: function () {
|
|
var div = document.createElement('div'),
|
|
options = this.options;
|
|
|
|
if (options.html) {
|
|
div.innerHTML = 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.Map.mergeOptions({
|
|
closePopupOnClick: true
|
|
});
|
|
|
|
L.Popup = L.Class.extend({
|
|
includes: L.Mixin.Events,
|
|
|
|
options: {
|
|
minWidth: 50,
|
|
maxWidth: 300,
|
|
maxHeight: null,
|
|
autoPan: true,
|
|
closeButton: true,
|
|
offset: new L.Point(0, 6),
|
|
autoPanPadding: new L.Point(5, 5),
|
|
className: ''
|
|
},
|
|
|
|
initialize: function (options, source) {
|
|
L.Util.setOptions(this, options);
|
|
|
|
this._source = source;
|
|
},
|
|
|
|
onAdd: function (map) {
|
|
this._map = map;
|
|
|
|
if (!this._container) {
|
|
this._initLayout();
|
|
}
|
|
this._updateContent();
|
|
|
|
var animFade = map.options.fadeAnimation;
|
|
|
|
if (animFade) {
|
|
L.DomUtil.setOpacity(this._container, 0);
|
|
}
|
|
map._panes.popupPane.appendChild(this._container);
|
|
|
|
map.on('viewreset', this._updatePosition, this);
|
|
|
|
if (L.Browser.any3d) {
|
|
map.on('zoomanim', this._zoomAnimation, this);
|
|
}
|
|
|
|
if (map.options.closePopupOnClick) {
|
|
map.on('preclick', this._close, this);
|
|
}
|
|
|
|
this._update();
|
|
|
|
if (animFade) {
|
|
L.DomUtil.setOpacity(this._container, 1);
|
|
}
|
|
},
|
|
|
|
addTo: function (map) {
|
|
map.addLayer(this);
|
|
return this;
|
|
},
|
|
|
|
openOn: function (map) {
|
|
map.openPopup(this);
|
|
return this;
|
|
},
|
|
|
|
onRemove: function (map) {
|
|
map._panes.popupPane.removeChild(this._container);
|
|
|
|
L.Util.falseFn(this._container.offsetWidth); // force reflow
|
|
|
|
map.off({
|
|
viewreset: this._updatePosition,
|
|
preclick: this._close,
|
|
zoomanim: this._zoomAnimation
|
|
}, this);
|
|
|
|
if (map.options.fadeAnimation) {
|
|
L.DomUtil.setOpacity(this._container, 0);
|
|
}
|
|
|
|
this._map = null;
|
|
},
|
|
|
|
setLatLng: function (latlng) {
|
|
this._latlng = L.latLng(latlng);
|
|
this._update();
|
|
return this;
|
|
},
|
|
|
|
setContent: function (content) {
|
|
this._content = content;
|
|
this._update();
|
|
return this;
|
|
},
|
|
|
|
_close: function () {
|
|
var map = this._map;
|
|
|
|
if (map) {
|
|
map._popup = null;
|
|
|
|
map
|
|
.removeLayer(this)
|
|
.fire('popupclose', {popup: this});
|
|
}
|
|
},
|
|
|
|
_initLayout: function () {
|
|
var prefix = 'leaflet-popup',
|
|
container = this._container = L.DomUtil.create('div', prefix + ' ' + this.options.className + ' leaflet-zoom-animated'),
|
|
closeButton;
|
|
|
|
if (this.options.closeButton) {
|
|
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);
|
|
L.DomEvent.disableClickPropagation(wrapper);
|
|
|
|
this._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper);
|
|
L.DomEvent.on(this._contentNode, 'mousewheel', L.DomEvent.stopPropagation);
|
|
|
|
this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container);
|
|
this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer);
|
|
},
|
|
|
|
_update: function () {
|
|
if (!this._map) { return; }
|
|
|
|
this._container.style.visibility = 'hidden';
|
|
|
|
this._updateContent();
|
|
this._updateLayout();
|
|
this._updatePosition();
|
|
|
|
this._container.style.visibility = '';
|
|
|
|
this._adjustPan();
|
|
},
|
|
|
|
_updateContent: function () {
|
|
if (!this._content) { return; }
|
|
|
|
if (typeof this._content === 'string') {
|
|
this._contentNode.innerHTML = this._content;
|
|
} else {
|
|
while (this._contentNode.hasChildNodes()) {
|
|
this._contentNode.removeChild(this._contentNode.firstChild);
|
|
}
|
|
this._contentNode.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 () {
|
|
var pos = this._map.latLngToLayerPoint(this._latlng),
|
|
is3d = L.Browser.any3d,
|
|
offset = this.options.offset;
|
|
|
|
if (is3d) {
|
|
L.DomUtil.setPosition(this._container, pos);
|
|
}
|
|
|
|
this._containerBottom = -offset.y - (is3d ? 0 : pos.y);
|
|
this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x + (is3d ? 0 : pos.x);
|
|
|
|
//Bottom position the popup in case the height of the popup changes (images loading etc)
|
|
this._container.style.bottom = this._containerBottom + 'px';
|
|
this._container.style.left = this._containerLeft + 'px';
|
|
},
|
|
|
|
_zoomAnimation: function (opt) {
|
|
var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.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 (L.Browser.any3d) {
|
|
layerPos._add(L.DomUtil.getPosition(this._container));
|
|
}
|
|
|
|
var containerPos = map.layerPointToContainerPoint(layerPos),
|
|
padding = this.options.autoPanPadding,
|
|
size = map.getSize(),
|
|
dx = 0,
|
|
dy = 0;
|
|
|
|
if (containerPos.x < 0) {
|
|
dx = containerPos.x - padding.x;
|
|
}
|
|
if (containerPos.x + containerWidth > size.x) {
|
|
dx = containerPos.x + containerWidth - size.x + padding.x;
|
|
}
|
|
if (containerPos.y < 0) {
|
|
dy = containerPos.y - padding.y;
|
|
}
|
|
if (containerPos.y + containerHeight > size.y) {
|
|
dy = containerPos.y + containerHeight - size.y + padding.y;
|
|
}
|
|
|
|
if (dx || dy) {
|
|
map.panBy(new L.Point(dx, dy));
|
|
}
|
|
},
|
|
|
|
_onCloseButtonClick: function (e) {
|
|
this._close();
|
|
L.DomEvent.stop(e);
|
|
}
|
|
});
|
|
|
|
L.popup = function (options, source) {
|
|
return new L.Popup(options, source);
|
|
};
|
|
|
|
|
|
/*
|
|
* Popup extension to L.Marker, adding openPopup & bindPopup methods.
|
|
*/
|
|
|
|
L.Marker.include({
|
|
openPopup: function () {
|
|
if (this._popup && this._map) {
|
|
this._popup.setLatLng(this._latlng);
|
|
this._map.openPopup(this._popup);
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
closePopup: function () {
|
|
if (this._popup) {
|
|
this._popup._close();
|
|
}
|
|
return this;
|
|
},
|
|
|
|
bindPopup: function (content, options) {
|
|
var anchor = L.point(this.options.icon.options.popupAnchor) || new L.Point(0, 0);
|
|
|
|
anchor = anchor.add(L.Popup.prototype.options.offset);
|
|
|
|
if (options && options.offset) {
|
|
anchor = anchor.add(options.offset);
|
|
}
|
|
|
|
options = L.Util.extend({offset: anchor}, options);
|
|
|
|
if (!this._popup) {
|
|
this.on('click', this.openPopup, this);
|
|
}
|
|
|
|
this._popup = new L.Popup(options, this)
|
|
.setContent(content);
|
|
|
|
return this;
|
|
},
|
|
|
|
unbindPopup: function () {
|
|
if (this._popup) {
|
|
this._popup = null;
|
|
this.off('click', this.openPopup);
|
|
}
|
|
return this;
|
|
}
|
|
});
|
|
|
|
|
|
|
|
L.Map.include({
|
|
openPopup: function (popup) {
|
|
this.closePopup();
|
|
|
|
this._popup = popup;
|
|
|
|
return this
|
|
.addLayer(popup)
|
|
.fire('popupopen', {popup: this._popup});
|
|
},
|
|
|
|
closePopup: function () {
|
|
if (this._popup) {
|
|
this._popup._close();
|
|
}
|
|
return this;
|
|
}
|
|
});
|
|
|
|
/*
|
|
* L.LayerGroup is a class to combine several layers so you can manipulate the group (e.g. add/remove it) as one layer.
|
|
*/
|
|
|
|
L.LayerGroup = L.Class.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 = L.Util.stamp(layer);
|
|
|
|
this._layers[id] = layer;
|
|
|
|
if (this._map) {
|
|
this._map.addLayer(layer);
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
removeLayer: function (layer) {
|
|
var id = L.Util.stamp(layer);
|
|
|
|
delete this._layers[id];
|
|
|
|
if (this._map) {
|
|
this._map.removeLayer(layer);
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
clearLayers: function () {
|
|
this.eachLayer(this.removeLayer, this);
|
|
return this;
|
|
},
|
|
|
|
invoke: function (methodName) {
|
|
var args = Array.prototype.slice.call(arguments, 1),
|
|
i, layer;
|
|
|
|
for (i in this._layers) {
|
|
if (this._layers.hasOwnProperty(i)) {
|
|
layer = this._layers[i];
|
|
|
|
if (layer[methodName]) {
|
|
layer[methodName].apply(layer, args);
|
|
}
|
|
}
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
onAdd: function (map) {
|
|
this._map = map;
|
|
this.eachLayer(map.addLayer, map);
|
|
},
|
|
|
|
onRemove: function (map) {
|
|
this.eachLayer(map.removeLayer, map);
|
|
this._map = null;
|
|
},
|
|
|
|
addTo: function (map) {
|
|
map.addLayer(this);
|
|
return this;
|
|
},
|
|
|
|
eachLayer: function (method, context) {
|
|
for (var i in this._layers) {
|
|
if (this._layers.hasOwnProperty(i)) {
|
|
method.call(context, this._layers[i]);
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
L.layerGroup = function (layers) {
|
|
return new L.LayerGroup(layers);
|
|
};
|
|
|
|
|
|
/*
|
|
* L.FeatureGroup extends L.LayerGroup by introducing mouse events and bindPopup method shared between a group of layers.
|
|
*/
|
|
|
|
L.FeatureGroup = L.LayerGroup.extend({
|
|
includes: L.Mixin.Events,
|
|
|
|
addLayer: function (layer) {
|
|
if (this._layers[L.Util.stamp(layer)]) {
|
|
return this;
|
|
}
|
|
|
|
layer.on('click dblclick mouseover mouseout mousemove contextmenu', this._propagateEvent, this);
|
|
|
|
L.LayerGroup.prototype.addLayer.call(this, layer);
|
|
|
|
if (this._popupContent && layer.bindPopup) {
|
|
layer.bindPopup(this._popupContent);
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
removeLayer: function (layer) {
|
|
layer.off('click dblclick mouseover mouseout mousemove contextmenu', this._propagateEvent, this);
|
|
|
|
L.LayerGroup.prototype.removeLayer.call(this, layer);
|
|
|
|
if (this._popupContent) {
|
|
return this.invoke('unbindPopup');
|
|
} else {
|
|
return this;
|
|
}
|
|
},
|
|
|
|
bindPopup: function (content) {
|
|
this._popupContent = content;
|
|
return this.invoke('bindPopup', content);
|
|
},
|
|
|
|
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 instanceof L.Marker ? layer.getLatLng() : layer.getBounds());
|
|
}, this);
|
|
return bounds;
|
|
},
|
|
|
|
_propagateEvent: function (e) {
|
|
e.layer = e.target;
|
|
e.target = this;
|
|
|
|
this.fire(e.type, e);
|
|
}
|
|
});
|
|
|
|
L.featureGroup = function (layers) {
|
|
return new L.FeatureGroup(layers);
|
|
};
|
|
|
|
|
|
/*
|
|
* L.Path is a base class for rendering vector paths on a map. It's inherited by Polyline, Circle, etc.
|
|
*/
|
|
|
|
L.Path = L.Class.extend({
|
|
includes: [L.Mixin.Events],
|
|
|
|
statics: {
|
|
// how much to extend the clip area around the map view
|
|
// (relative to its size, e.g. 0.5 is half the screen in each direction)
|
|
// set in such way that SVG element doesn't exceed 1280px (vector layers flicker on dragend if it is)
|
|
CLIP_PADDING: L.Browser.mobile ?
|
|
Math.max(0, Math.min(0.5,
|
|
(1280 / Math.max(window.innerWidth, window.innerHeight) - 1) / 2))
|
|
: 0.5
|
|
},
|
|
|
|
options: {
|
|
stroke: true,
|
|
color: '#0033ff',
|
|
dashArray: null,
|
|
weight: 5,
|
|
opacity: 0.5,
|
|
|
|
fill: false,
|
|
fillColor: null, //same as color by default
|
|
fillOpacity: 0.2,
|
|
|
|
clickable: true
|
|
},
|
|
|
|
initialize: function (options) {
|
|
L.Util.setOptions(this, options);
|
|
},
|
|
|
|
onAdd: function (map) {
|
|
this._map = map;
|
|
|
|
if (!this._container) {
|
|
this._initElements();
|
|
this._initEvents();
|
|
}
|
|
|
|
this.projectLatlngs();
|
|
this._updatePath();
|
|
|
|
if (this._container) {
|
|
this._map._pathRoot.appendChild(this._container);
|
|
}
|
|
|
|
map.on({
|
|
'viewreset': this.projectLatlngs,
|
|
'moveend': this._updatePath
|
|
}, this);
|
|
},
|
|
|
|
addTo: function (map) {
|
|
map.addLayer(this);
|
|
return this;
|
|
},
|
|
|
|
onRemove: function (map) {
|
|
map._pathRoot.removeChild(this._container);
|
|
|
|
this._map = null;
|
|
|
|
if (L.Browser.vml) {
|
|
this._container = null;
|
|
this._stroke = null;
|
|
this._fill = null;
|
|
}
|
|
|
|
map.off({
|
|
'viewreset': this.projectLatlngs,
|
|
'moveend': this._updatePath
|
|
}, this);
|
|
},
|
|
|
|
projectLatlngs: function () {
|
|
// do all projection stuff here
|
|
},
|
|
|
|
setStyle: function (style) {
|
|
L.Util.setOptions(this, style);
|
|
|
|
if (this._container) {
|
|
this._updateStyle();
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
redraw: function () {
|
|
if (this._map) {
|
|
this.projectLatlngs();
|
|
this._updatePath();
|
|
}
|
|
return this;
|
|
}
|
|
});
|
|
|
|
L.Map.include({
|
|
_updatePathViewport: function () {
|
|
var p = L.Path.CLIP_PADDING,
|
|
size = this.getSize(),
|
|
panePos = L.DomUtil.getPosition(this._mapPane),
|
|
min = panePos.multiplyBy(-1)._subtract(size.multiplyBy(p)),
|
|
max = min.add(size.multiplyBy(1 + p * 2));
|
|
|
|
this._pathViewport = new L.Bounds(min, max);
|
|
}
|
|
});
|
|
|
|
|
|
L.Path.SVG_NS = 'http://www.w3.org/2000/svg';
|
|
|
|
L.Browser.svg = !!(document.createElementNS && document.createElementNS(L.Path.SVG_NS, 'svg').createSVGRect);
|
|
|
|
L.Path = L.Path.extend({
|
|
statics: {
|
|
SVG: L.Browser.svg
|
|
},
|
|
|
|
bringToFront: function () {
|
|
var root = this._map._pathRoot,
|
|
path = this._container;
|
|
|
|
if (path && root.lastChild !== path) {
|
|
root.appendChild(path);
|
|
}
|
|
return this;
|
|
},
|
|
|
|
bringToBack: function () {
|
|
var root = this._map._pathRoot,
|
|
path = this._container,
|
|
first = root.firstChild;
|
|
|
|
if (path && first !== path) {
|
|
root.insertBefore(path, first);
|
|
}
|
|
return this;
|
|
},
|
|
|
|
getPathString: function () {
|
|
// form path string here
|
|
},
|
|
|
|
_createElement: function (name) {
|
|
return document.createElementNS(L.Path.SVG_NS, name);
|
|
},
|
|
|
|
_initElements: function () {
|
|
this._map._initPathRoot();
|
|
this._initPath();
|
|
this._initStyle();
|
|
},
|
|
|
|
_initPath: function () {
|
|
this._container = this._createElement('g');
|
|
|
|
this._path = this._createElement('path');
|
|
this._container.appendChild(this._path);
|
|
},
|
|
|
|
_initStyle: function () {
|
|
if (this.options.stroke) {
|
|
this._path.setAttribute('stroke-linejoin', 'round');
|
|
this._path.setAttribute('stroke-linecap', 'round');
|
|
}
|
|
if (this.options.fill) {
|
|
this._path.setAttribute('fill-rule', 'evenodd');
|
|
}
|
|
this._updateStyle();
|
|
},
|
|
|
|
_updateStyle: function () {
|
|
if (this.options.stroke) {
|
|
this._path.setAttribute('stroke', this.options.color);
|
|
this._path.setAttribute('stroke-opacity', this.options.opacity);
|
|
this._path.setAttribute('stroke-width', this.options.weight);
|
|
if (this.options.dashArray) {
|
|
this._path.setAttribute('stroke-dasharray', this.options.dashArray);
|
|
} else {
|
|
this._path.removeAttribute('stroke-dasharray');
|
|
}
|
|
} else {
|
|
this._path.setAttribute('stroke', 'none');
|
|
}
|
|
if (this.options.fill) {
|
|
this._path.setAttribute('fill', this.options.fillColor || this.options.color);
|
|
this._path.setAttribute('fill-opacity', this.options.fillOpacity);
|
|
} else {
|
|
this._path.setAttribute('fill', 'none');
|
|
}
|
|
},
|
|
|
|
_updatePath: function () {
|
|
var str = this.getPathString();
|
|
if (!str) {
|
|
// fix webkit empty string parsing bug
|
|
str = 'M0 0';
|
|
}
|
|
this._path.setAttribute('d', str);
|
|
},
|
|
|
|
// TODO remove duplication with L.Map
|
|
_initEvents: function () {
|
|
if (this.options.clickable) {
|
|
if (L.Browser.svg || !L.Browser.vml) {
|
|
this._path.setAttribute('class', 'leaflet-clickable');
|
|
}
|
|
|
|
L.DomEvent.on(this._container, 'click', this._onMouseClick, this);
|
|
|
|
var events = ['dblclick', 'mousedown', 'mouseover', 'mouseout', 'mousemove', 'contextmenu'];
|
|
for (var i = 0; i < events.length; i++) {
|
|
L.DomEvent.on(this._container, events[i], this._fireMouseEvent, this);
|
|
}
|
|
}
|
|
},
|
|
|
|
_onMouseClick: function (e) {
|
|
if (this._map.dragging && this._map.dragging.moved()) {
|
|
return;
|
|
}
|
|
|
|
this._fireMouseEvent(e);
|
|
|
|
L.DomEvent.stopPropagation(e);
|
|
},
|
|
|
|
_fireMouseEvent: function (e) {
|
|
if (!this.hasEventListeners(e.type)) {
|
|
return;
|
|
}
|
|
|
|
if (e.type === 'contextmenu') {
|
|
L.DomEvent.preventDefault(e);
|
|
}
|
|
|
|
var map = this._map,
|
|
containerPoint = map.mouseEventToContainerPoint(e),
|
|
layerPoint = map.containerPointToLayerPoint(containerPoint),
|
|
latlng = map.layerPointToLatLng(layerPoint);
|
|
|
|
this.fire(e.type, {
|
|
latlng: latlng,
|
|
layerPoint: layerPoint,
|
|
containerPoint: containerPoint,
|
|
originalEvent: e
|
|
});
|
|
}
|
|
});
|
|
|
|
L.Map.include({
|
|
_initPathRoot: function () {
|
|
if (!this._pathRoot) {
|
|
this._pathRoot = L.Path.prototype._createElement('svg');
|
|
this._panes.overlayPane.appendChild(this._pathRoot);
|
|
|
|
if (this.options.zoomAnimation && L.Browser.any3d) {
|
|
this._pathRoot.setAttribute('class', ' leaflet-zoom-animated');
|
|
|
|
this.on({
|
|
'zoomanim': this._animatePathZoom,
|
|
'zoomend': this._endPathZoom
|
|
});
|
|
} else {
|
|
this._pathRoot.setAttribute('class', ' leaflet-zoom-hide');
|
|
}
|
|
|
|
this.on('moveend', this._updateSvgViewport);
|
|
this._updateSvgViewport();
|
|
}
|
|
},
|
|
|
|
_animatePathZoom: function (opt) {
|
|
var scale = this.getZoomScale(opt.zoom),
|
|
offset = this._getCenterOffset(opt.center).divideBy(1 - 1 / scale),
|
|
viewportPos = this.containerPointToLayerPoint(this.getSize().multiplyBy(-L.Path.CLIP_PADDING)),
|
|
origin = viewportPos.add(offset).round();
|
|
|
|
this._pathRoot.style[L.DomUtil.TRANSFORM] = L.DomUtil.getTranslateString((origin.multiplyBy(-1).add(L.DomUtil.getPosition(this._pathRoot)).multiplyBy(scale).add(origin))) + ' scale(' + scale + ') ';
|
|
|
|
this._pathZooming = true;
|
|
},
|
|
|
|
_endPathZoom: function () {
|
|
this._pathZooming = false;
|
|
},
|
|
|
|
_updateSvgViewport: function () {
|
|
if (this._pathZooming) {
|
|
// Do not update SVGs while a zoom animation is going on otherwise the animation will break.
|
|
// When the zoom animation ends we will be updated again anyway
|
|
// This fixes the case where you do a momentum move and zoom while the move is still ongoing.
|
|
return;
|
|
}
|
|
|
|
this._updatePathViewport();
|
|
|
|
var vp = this._pathViewport,
|
|
min = vp.min,
|
|
max = vp.max,
|
|
width = max.x - min.x,
|
|
height = max.y - min.y,
|
|
root = this._pathRoot,
|
|
pane = this._panes.overlayPane;
|
|
|
|
// Hack to make flicker on drag end on mobile webkit less irritating
|
|
if (L.Browser.mobileWebkit) {
|
|
pane.removeChild(root);
|
|
}
|
|
|
|
L.DomUtil.setPosition(root, min);
|
|
root.setAttribute('width', width);
|
|
root.setAttribute('height', height);
|
|
root.setAttribute('viewBox', [min.x, min.y, width, height].join(' '));
|
|
|
|
if (L.Browser.mobileWebkit) {
|
|
pane.appendChild(root);
|
|
}
|
|
}
|
|
});
|
|
|
|
|
|
/*
|
|
* Popup extension to L.Path (polylines, polygons, circles), adding bindPopup method.
|
|
*/
|
|
|
|
L.Path.include({
|
|
|
|
bindPopup: function (content, options) {
|
|
|
|
if (!this._popup || this._popup.options !== options) {
|
|
this._popup = new L.Popup(options, this);
|
|
}
|
|
|
|
this._popup.setContent(content);
|
|
|
|
if (!this._openPopupAdded) {
|
|
this.on('click', this._openPopup, this);
|
|
this._openPopupAdded = true;
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
openPopup: function (latlng) {
|
|
|
|
if (this._popup) {
|
|
latlng = latlng || this._latlng ||
|
|
this._latlngs[Math.floor(this._latlngs.length / 2)];
|
|
|
|
this._openPopup({latlng: latlng});
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
_openPopup: function (e) {
|
|
this._popup.setLatLng(e.latlng);
|
|
this._map.openPopup(this._popup);
|
|
}
|
|
});
|
|
|
|
|
|
/*
|
|
* Vector rendering for IE6-8 through VML.
|
|
* Thanks to Dmitry Baranovsky and his Raphael library for inspiration!
|
|
*/
|
|
|
|
L.Browser.vml = (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;
|
|
}
|
|
}());
|
|
|
|
L.Path = L.Browser.svg || !L.Browser.vml ? L.Path : L.Path.extend({
|
|
statics: {
|
|
VML: true,
|
|
CLIP_PADDING: 0.02
|
|
},
|
|
|
|
_createElement: (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">');
|
|
};
|
|
}
|
|
}()),
|
|
|
|
_initPath: function () {
|
|
var container = this._container = this._createElement('shape');
|
|
L.DomUtil.addClass(container, 'leaflet-vml-shape');
|
|
if (this.options.clickable) {
|
|
L.DomUtil.addClass(container, 'leaflet-clickable');
|
|
}
|
|
container.coordsize = '1 1';
|
|
|
|
this._path = this._createElement('path');
|
|
container.appendChild(this._path);
|
|
|
|
this._map._pathRoot.appendChild(container);
|
|
},
|
|
|
|
_initStyle: function () {
|
|
this._updateStyle();
|
|
},
|
|
|
|
_updateStyle: function () {
|
|
var stroke = this._stroke,
|
|
fill = this._fill,
|
|
options = this.options,
|
|
container = this._container;
|
|
|
|
container.stroked = options.stroke;
|
|
container.filled = options.fill;
|
|
|
|
if (options.stroke) {
|
|
if (!stroke) {
|
|
stroke = this._stroke = this._createElement('stroke');
|
|
stroke.endcap = 'round';
|
|
container.appendChild(stroke);
|
|
}
|
|
stroke.weight = options.weight + 'px';
|
|
stroke.color = options.color;
|
|
stroke.opacity = options.opacity;
|
|
if (options.dashArray) {
|
|
stroke.dashStyle = options.dashArray.replace(/ *, */g, ' ');
|
|
} else {
|
|
stroke.dashStyle = '';
|
|
}
|
|
} else if (stroke) {
|
|
container.removeChild(stroke);
|
|
this._stroke = null;
|
|
}
|
|
|
|
if (options.fill) {
|
|
if (!fill) {
|
|
fill = this._fill = this._createElement('fill');
|
|
container.appendChild(fill);
|
|
}
|
|
fill.color = options.fillColor || options.color;
|
|
fill.opacity = options.fillOpacity;
|
|
} else if (fill) {
|
|
container.removeChild(fill);
|
|
this._fill = null;
|
|
}
|
|
},
|
|
|
|
_updatePath: function () {
|
|
var style = this._container.style;
|
|
|
|
style.display = 'none';
|
|
this._path.v = this.getPathString() + ' '; // the space fixes IE empty path string bug
|
|
style.display = '';
|
|
}
|
|
});
|
|
|
|
L.Map.include(L.Browser.svg || !L.Browser.vml ? {} : {
|
|
_initPathRoot: function () {
|
|
if (this._pathRoot) { return; }
|
|
|
|
var root = this._pathRoot = document.createElement('div');
|
|
root.className = 'leaflet-vml-container';
|
|
this._panes.overlayPane.appendChild(root);
|
|
|
|
this.on('moveend', this._updatePathViewport);
|
|
this._updatePathViewport();
|
|
}
|
|
});
|
|
|
|
|
|
/*
|
|
* Vector rendering for all browsers that support canvas.
|
|
*/
|
|
|
|
L.Browser.canvas = (function () {
|
|
return !!document.createElement('canvas').getContext;
|
|
}());
|
|
|
|
L.Path = (L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? L.Path : L.Path.extend({
|
|
statics: {
|
|
//CLIP_PADDING: 0.02, // not sure if there's a need to set it to a small value
|
|
CANVAS: true,
|
|
SVG: false
|
|
},
|
|
|
|
redraw: function () {
|
|
if (this._map) {
|
|
this.projectLatlngs();
|
|
this._requestUpdate();
|
|
}
|
|
return this;
|
|
},
|
|
|
|
setStyle: function (style) {
|
|
L.Util.setOptions(this, style);
|
|
|
|
if (this._map) {
|
|
this._updateStyle();
|
|
this._requestUpdate();
|
|
}
|
|
return this;
|
|
},
|
|
|
|
onRemove: function (map) {
|
|
map
|
|
.off('viewreset', this.projectLatlngs, this)
|
|
.off('moveend', this._updatePath, this);
|
|
|
|
this._requestUpdate();
|
|
|
|
this._map = null;
|
|
},
|
|
|
|
_requestUpdate: function () {
|
|
if (this._map) {
|
|
L.Util.cancelAnimFrame(this._fireMapMoveEnd);
|
|
this._updateRequest = L.Util.requestAnimFrame(this._fireMapMoveEnd, this._map);
|
|
}
|
|
},
|
|
|
|
_fireMapMoveEnd: function () {
|
|
this.fire('moveend');
|
|
},
|
|
|
|
_initElements: function () {
|
|
this._map._initPathRoot();
|
|
this._ctx = this._map._canvasCtx;
|
|
},
|
|
|
|
_updateStyle: function () {
|
|
var options = this.options;
|
|
|
|
if (options.stroke) {
|
|
this._ctx.lineWidth = options.weight;
|
|
this._ctx.strokeStyle = options.color;
|
|
}
|
|
if (options.fill) {
|
|
this._ctx.fillStyle = options.fillColor || options.color;
|
|
}
|
|
},
|
|
|
|
_drawPath: function () {
|
|
var i, j, len, len2, point, drawMethod;
|
|
|
|
this._ctx.beginPath();
|
|
|
|
for (i = 0, len = this._parts.length; i < len; i++) {
|
|
for (j = 0, len2 = this._parts[i].length; j < len2; j++) {
|
|
point = this._parts[i][j];
|
|
drawMethod = (j === 0 ? 'move' : 'line') + 'To';
|
|
|
|
this._ctx[drawMethod](point.x, point.y);
|
|
}
|
|
// TODO refactor ugly hack
|
|
if (this instanceof L.Polygon) {
|
|
this._ctx.closePath();
|
|
}
|
|
}
|
|
},
|
|
|
|
_checkIfEmpty: function () {
|
|
return !this._parts.length;
|
|
},
|
|
|
|
_updatePath: function () {
|
|
if (this._checkIfEmpty()) { return; }
|
|
|
|
var ctx = this._ctx,
|
|
options = this.options;
|
|
|
|
this._drawPath();
|
|
ctx.save();
|
|
this._updateStyle();
|
|
|
|
if (options.fill) {
|
|
if (options.fillOpacity < 1) {
|
|
ctx.globalAlpha = options.fillOpacity;
|
|
}
|
|
ctx.fill();
|
|
}
|
|
|
|
if (options.stroke) {
|
|
if (options.opacity < 1) {
|
|
ctx.globalAlpha = options.opacity;
|
|
}
|
|
ctx.stroke();
|
|
}
|
|
|
|
ctx.restore();
|
|
|
|
// TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature
|
|
},
|
|
|
|
_initEvents: function () {
|
|
if (this.options.clickable) {
|
|
// TODO hand cursor
|
|
// TODO mouseover, mouseout, dblclick
|
|
this._map.on('click', this._onClick, this);
|
|
}
|
|
},
|
|
|
|
_onClick: function (e) {
|
|
if (this._containsPoint(e.layerPoint)) {
|
|
this.fire('click', e);
|
|
}
|
|
}
|
|
});
|
|
|
|
L.Map.include((L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? {} : {
|
|
_initPathRoot: function () {
|
|
var root = this._pathRoot,
|
|
ctx;
|
|
|
|
if (!root) {
|
|
root = this._pathRoot = document.createElement("canvas");
|
|
root.style.position = 'absolute';
|
|
ctx = this._canvasCtx = root.getContext('2d');
|
|
|
|
ctx.lineCap = "round";
|
|
ctx.lineJoin = "round";
|
|
|
|
this._panes.overlayPane.appendChild(root);
|
|
|
|
if (this.options.zoomAnimation) {
|
|
this._pathRoot.className = 'leaflet-zoom-animated';
|
|
this.on('zoomanim', this._animatePathZoom);
|
|
this.on('zoomend', this._endPathZoom);
|
|
}
|
|
this.on('moveend', this._updateCanvasViewport);
|
|
this._updateCanvasViewport();
|
|
}
|
|
},
|
|
|
|
_updateCanvasViewport: function () {
|
|
if (this._pathZooming) {
|
|
//Don't redraw while zooming. See _updateSvgViewport for more details
|
|
return;
|
|
}
|
|
this._updatePathViewport();
|
|
|
|
var vp = this._pathViewport,
|
|
min = vp.min,
|
|
size = vp.max.subtract(min),
|
|
root = this._pathRoot;
|
|
|
|
//TODO check if this works properly on mobile webkit
|
|
L.DomUtil.setPosition(root, min);
|
|
root.width = size.x;
|
|
root.height = size.y;
|
|
root.getContext('2d').translate(-min.x, -min.y);
|
|
}
|
|
});
|
|
|
|
|
|
/*
|
|
* L.LineUtil contains different utility functions for line segments
|
|
* and polylines (clipping, simplification, distances, etc.)
|
|
*/
|
|
|
|
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;
|
|
},
|
|
|
|
/*jshint bitwise:false */ // temporarily allow bitwise oprations
|
|
|
|
// 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 min = bounds.min,
|
|
max = bounds.max;
|
|
|
|
var codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds),
|
|
codeB = this._getBitCode(b, bounds);
|
|
|
|
// 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 {
|
|
var 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;
|
|
|
|
if (code & 8) { // top
|
|
return new L.Point(a.x + dx * (max.y - a.y) / dy, max.y);
|
|
} else if (code & 4) { // bottom
|
|
return new L.Point(a.x + dx * (min.y - a.y) / dy, min.y);
|
|
} else if (code & 2) { // right
|
|
return new L.Point(max.x, a.y + dy * (max.x - a.x) / dx);
|
|
} else if (code & 1) { // left
|
|
return new L.Point(min.x, a.y + dy * (min.x - a.x) / dx);
|
|
}
|
|
},
|
|
|
|
_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;
|
|
},
|
|
|
|
/*jshint bitwise:true */
|
|
|
|
// 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 = L.Path.extend({
|
|
initialize: function (latlngs, options) {
|
|
L.Path.prototype.initialize.call(this, options);
|
|
|
|
this._latlngs = this._convertLatLngs(latlngs);
|
|
|
|
// TODO refactor: move to Polyline.Edit.js
|
|
if (L.Handler.PolyEdit) {
|
|
this.editing = new L.Handler.PolyEdit(this);
|
|
|
|
if (this.options.editable) {
|
|
this.editing.enable();
|
|
}
|
|
}
|
|
},
|
|
|
|
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
|
|
},
|
|
|
|
projectLatlngs: function () {
|
|
this._originalPoints = [];
|
|
|
|
for (var i = 0, len = this._latlngs.length; i < len; i++) {
|
|
this._originalPoints[i] = this._map.latLngToLayerPoint(this._latlngs[i]);
|
|
}
|
|
},
|
|
|
|
getPathString: function () {
|
|
for (var i = 0, len = this._parts.length, str = ''; i < len; i++) {
|
|
str += this._getPathPartStr(this._parts[i]);
|
|
}
|
|
return str;
|
|
},
|
|
|
|
getLatLngs: function () {
|
|
return this._latlngs;
|
|
},
|
|
|
|
setLatLngs: function (latlngs) {
|
|
this._latlngs = this._convertLatLngs(latlngs);
|
|
return this.redraw();
|
|
},
|
|
|
|
addLatLng: function (latlng) {
|
|
this._latlngs.push(L.latLng(latlng));
|
|
return this.redraw();
|
|
},
|
|
|
|
spliceLatLngs: function (index, howMany) {
|
|
var removed = [].splice.apply(this._latlngs, arguments);
|
|
this._convertLatLngs(this._latlngs);
|
|
this.redraw();
|
|
return removed;
|
|
},
|
|
|
|
closestLayerPoint: function (p) {
|
|
var minDistance = Infinity, parts = this._parts, p1, p2, minPoint = null;
|
|
|
|
for (var j = 0, jLen = parts.length; j < jLen; j++) {
|
|
var points = parts[j];
|
|
for (var i = 1, len = points.length; i < len; i++) {
|
|
p1 = points[i - 1];
|
|
p2 = points[i];
|
|
var sqDist = L.LineUtil._sqClosestPointOnSegment(p, p1, p2, true);
|
|
if (sqDist < minDistance) {
|
|
minDistance = sqDist;
|
|
minPoint = L.LineUtil._sqClosestPointOnSegment(p, p1, p2);
|
|
}
|
|
}
|
|
}
|
|
if (minPoint) {
|
|
minPoint.distance = Math.sqrt(minDistance);
|
|
}
|
|
return minPoint;
|
|
},
|
|
|
|
getBounds: function () {
|
|
var b = new L.LatLngBounds();
|
|
var latLngs = this.getLatLngs();
|
|
for (var i = 0, len = latLngs.length; i < len; i++) {
|
|
b.extend(latLngs[i]);
|
|
}
|
|
return b;
|
|
},
|
|
|
|
// TODO refactor: move to Polyline.Edit.js
|
|
onAdd: function (map) {
|
|
L.Path.prototype.onAdd.call(this, map);
|
|
|
|
if (this.editing && this.editing.enabled()) {
|
|
this.editing.addHooks();
|
|
}
|
|
},
|
|
|
|
onRemove: function (map) {
|
|
if (this.editing && this.editing.enabled()) {
|
|
this.editing.removeHooks();
|
|
}
|
|
|
|
L.Path.prototype.onRemove.call(this, map);
|
|
},
|
|
|
|
_convertLatLngs: function (latlngs) {
|
|
var i, len;
|
|
for (i = 0, len = latlngs.length; i < len; i++) {
|
|
if (latlngs[i] instanceof Array && typeof latlngs[i][0] !== 'number') {
|
|
return;
|
|
}
|
|
latlngs[i] = L.latLng(latlngs[i]);
|
|
}
|
|
return latlngs;
|
|
},
|
|
|
|
_initEvents: function () {
|
|
L.Path.prototype._initEvents.call(this);
|
|
},
|
|
|
|
_getPathPartStr: function (points) {
|
|
var round = L.Path.VML;
|
|
|
|
for (var j = 0, len2 = points.length, str = '', p; j < len2; j++) {
|
|
p = points[j];
|
|
if (round) {
|
|
p._round();
|
|
}
|
|
str += (j ? 'L' : 'M') + p.x + ' ' + p.y;
|
|
}
|
|
return str;
|
|
},
|
|
|
|
_clipPoints: function () {
|
|
var points = this._originalPoints,
|
|
len = points.length,
|
|
i, k, segment;
|
|
|
|
if (this.options.noClip) {
|
|
this._parts = [points];
|
|
return;
|
|
}
|
|
|
|
this._parts = [];
|
|
|
|
var parts = this._parts,
|
|
vp = this._map._pathViewport,
|
|
lu = L.LineUtil;
|
|
|
|
for (i = 0, k = 0; i < len - 1; i++) {
|
|
segment = lu.clipSegment(points[i], points[i + 1], vp, i);
|
|
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[i + 1]) || (i === len - 2)) {
|
|
parts[k].push(segment[1]);
|
|
k++;
|
|
}
|
|
}
|
|
},
|
|
|
|
// simplify each clipped part of the polyline
|
|
_simplifyPoints: function () {
|
|
var parts = this._parts,
|
|
lu = L.LineUtil;
|
|
|
|
for (var i = 0, len = parts.length; i < len; i++) {
|
|
parts[i] = lu.simplify(parts[i], this.options.smoothFactor);
|
|
}
|
|
},
|
|
|
|
_updatePath: function () {
|
|
if (!this._map) { return; }
|
|
|
|
this._clipPoints();
|
|
this._simplifyPoints();
|
|
|
|
L.Path.prototype._updatePath.call(this);
|
|
}
|
|
});
|
|
|
|
L.polyline = function (latlngs, options) {
|
|
return new L.Polyline(latlngs, options);
|
|
};
|
|
|
|
|
|
/*
|
|
* L.PolyUtil contains utilify functions for polygons (clipping, etc.).
|
|
*/
|
|
|
|
/*jshint bitwise:false */ // allow bitwise oprations 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 min = bounds.min,
|
|
max = bounds.max,
|
|
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;
|
|
};
|
|
|
|
/*jshint bitwise:true */
|
|
|
|
|
|
/*
|
|
* L.Polygon is used to display polygons on a map.
|
|
*/
|
|
|
|
L.Polygon = L.Polyline.extend({
|
|
options: {
|
|
fill: true
|
|
},
|
|
|
|
initialize: function (latlngs, options) {
|
|
L.Polyline.prototype.initialize.call(this, latlngs, options);
|
|
|
|
if (latlngs && (latlngs[0] instanceof Array) && (typeof latlngs[0][0] !== 'number')) {
|
|
this._latlngs = this._convertLatLngs(latlngs[0]);
|
|
this._holes = latlngs.slice(1);
|
|
}
|
|
},
|
|
|
|
projectLatlngs: function () {
|
|
L.Polyline.prototype.projectLatlngs.call(this);
|
|
|
|
// project polygon holes points
|
|
// TODO move this logic to Polyline to get rid of duplication
|
|
this._holePoints = [];
|
|
|
|
if (!this._holes) {
|
|
return;
|
|
}
|
|
|
|
for (var i = 0, len = this._holes.length, hole; i < len; i++) {
|
|
this._holePoints[i] = [];
|
|
|
|
for (var j = 0, len2 = this._holes[i].length; j < len2; j++) {
|
|
this._holePoints[i][j] = this._map.latLngToLayerPoint(this._holes[i][j]);
|
|
}
|
|
}
|
|
},
|
|
|
|
_clipPoints: function () {
|
|
var points = this._originalPoints,
|
|
newParts = [];
|
|
|
|
this._parts = [points].concat(this._holePoints);
|
|
|
|
if (this.options.noClip) {
|
|
return;
|
|
}
|
|
|
|
for (var i = 0, len = this._parts.length; i < len; i++) {
|
|
var clipped = L.PolyUtil.clipPolygon(this._parts[i], this._map._pathViewport);
|
|
if (!clipped.length) {
|
|
continue;
|
|
}
|
|
newParts.push(clipped);
|
|
}
|
|
|
|
this._parts = newParts;
|
|
},
|
|
|
|
_getPathPartStr: function (points) {
|
|
var str = L.Polyline.prototype._getPathPartStr.call(this, points);
|
|
return str + (L.Browser.svg ? 'z' : 'x');
|
|
}
|
|
});
|
|
|
|
L.polygon = function (latlngs, options) {
|
|
return new L.Polygon(latlngs, options);
|
|
};
|
|
|
|
|
|
/*
|
|
* Contains L.MultiPolyline and L.MultiPolygon layers.
|
|
*/
|
|
|
|
(function () {
|
|
function createMulti(Klass) {
|
|
return L.FeatureGroup.extend({
|
|
initialize: function (latlngs, options) {
|
|
this._layers = {};
|
|
this._options = options;
|
|
this.setLatLngs(latlngs);
|
|
},
|
|
|
|
setLatLngs: function (latlngs) {
|
|
var i = 0, len = latlngs.length;
|
|
|
|
this.eachLayer(function (layer) {
|
|
if (i < len) {
|
|
layer.setLatLngs(latlngs[i++]);
|
|
} else {
|
|
this.removeLayer(layer);
|
|
}
|
|
}, this);
|
|
|
|
while (i < len) {
|
|
this.addLayer(new Klass(latlngs[i++], this._options));
|
|
}
|
|
|
|
return this;
|
|
}
|
|
});
|
|
}
|
|
|
|
L.MultiPolyline = createMulti(L.Polyline);
|
|
L.MultiPolygon = createMulti(L.Polygon);
|
|
|
|
L.multiPolyline = function (latlngs, options) {
|
|
return new L.MultiPolyline(latlngs, options);
|
|
};
|
|
|
|
L.multiPolygon = function (latlngs, options) {
|
|
return new L.MultiPolygon(latlngs, options);
|
|
};
|
|
}());
|
|
|
|
|
|
/*
|
|
* L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds
|
|
*/
|
|
|
|
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(),
|
|
latLngBounds.getSouthWest()
|
|
];
|
|
}
|
|
});
|
|
|
|
L.rectangle = function (latLngBounds, options) {
|
|
return new L.Rectangle(latLngBounds, options);
|
|
};
|
|
|
|
|
|
/*
|
|
* L.Circle is a circle overlay (with a certain radius in meters).
|
|
*/
|
|
|
|
L.Circle = L.Path.extend({
|
|
initialize: function (latlng, radius, options) {
|
|
L.Path.prototype.initialize.call(this, options);
|
|
|
|
this._latlng = L.latLng(latlng);
|
|
this._mRadius = radius;
|
|
},
|
|
|
|
options: {
|
|
fill: true
|
|
},
|
|
|
|
setLatLng: function (latlng) {
|
|
this._latlng = L.latLng(latlng);
|
|
return this.redraw();
|
|
},
|
|
|
|
setRadius: function (radius) {
|
|
this._mRadius = radius;
|
|
return this.redraw();
|
|
},
|
|
|
|
projectLatlngs: function () {
|
|
var lngRadius = this._getLngRadius(),
|
|
latlng2 = new L.LatLng(this._latlng.lat, this._latlng.lng - lngRadius, true),
|
|
point2 = this._map.latLngToLayerPoint(latlng2);
|
|
|
|
this._point = this._map.latLngToLayerPoint(this._latlng);
|
|
this._radius = Math.max(Math.round(this._point.x - point2.x), 1);
|
|
},
|
|
|
|
getBounds: function () {
|
|
var map = this._map,
|
|
delta = this._radius * Math.cos(Math.PI / 4),
|
|
point = map.project(this._latlng),
|
|
swPoint = new L.Point(point.x - delta, point.y + delta),
|
|
nePoint = new L.Point(point.x + delta, point.y - delta),
|
|
sw = map.unproject(swPoint),
|
|
ne = map.unproject(nePoint);
|
|
|
|
return new L.LatLngBounds(sw, ne);
|
|
},
|
|
|
|
getLatLng: function () {
|
|
return this._latlng;
|
|
},
|
|
|
|
getPathString: function () {
|
|
var p = this._point,
|
|
r = this._radius;
|
|
|
|
if (this._checkIfEmpty()) {
|
|
return '';
|
|
}
|
|
|
|
if (L.Browser.svg) {
|
|
return "M" + p.x + "," + (p.y - r) +
|
|
"A" + r + "," + r + ",0,1,1," +
|
|
(p.x - 0.1) + "," + (p.y - r) + " z";
|
|
} else {
|
|
p._round();
|
|
r = Math.round(r);
|
|
return "AL " + p.x + "," + p.y + " " + r + "," + r + " 0," + (65535 * 360);
|
|
}
|
|
},
|
|
|
|
getRadius: function () {
|
|
return this._mRadius;
|
|
},
|
|
|
|
_getLngRadius: function () {
|
|
var equatorLength = 40075017,
|
|
hLength = equatorLength * Math.cos(L.LatLng.DEG_TO_RAD * this._latlng.lat);
|
|
|
|
return (this._mRadius / hLength) * 360;
|
|
},
|
|
|
|
_checkIfEmpty: function () {
|
|
if (!this._map) {
|
|
return false;
|
|
}
|
|
var vp = this._map._pathViewport,
|
|
r = this._radius,
|
|
p = this._point;
|
|
|
|
return p.x - r > vp.max.x || p.y - r > vp.max.y ||
|
|
p.x + r < vp.min.x || p.y + r < vp.min.y;
|
|
}
|
|
});
|
|
|
|
L.circle = function (latlng, radius, options) {
|
|
return new L.Circle(latlng, radius, options);
|
|
};
|
|
|
|
|
|
/*
|
|
* L.CircleMarker is a circle overlay with a permanent pixel radius.
|
|
*/
|
|
|
|
L.CircleMarker = L.Circle.extend({
|
|
options: {
|
|
radius: 10,
|
|
weight: 2
|
|
},
|
|
|
|
initialize: function (latlng, options) {
|
|
L.Circle.prototype.initialize.call(this, latlng, null, options);
|
|
this._radius = this.options.radius;
|
|
},
|
|
|
|
projectLatlngs: function () {
|
|
this._point = this._map.latLngToLayerPoint(this._latlng);
|
|
},
|
|
|
|
setRadius: function (radius) {
|
|
this._radius = radius;
|
|
return this.redraw();
|
|
}
|
|
});
|
|
|
|
L.circleMarker = function (latlng, options) {
|
|
return new L.CircleMarker(latlng, options);
|
|
};
|
|
|
|
|
|
|
|
L.Polyline.include(!L.Path.CANVAS ? {} : {
|
|
_containsPoint: function (p, closed) {
|
|
var i, j, k, len, len2, dist, part,
|
|
w = this.options.weight / 2;
|
|
|
|
if (L.Browser.touch) {
|
|
w += 10; // polyline click tolerance on touch devices
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
dist = L.LineUtil.pointToSegmentDistance(p, part[k], part[j]);
|
|
|
|
if (dist <= w) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
});
|
|
|
|
|
|
|
|
L.Polygon.include(!L.Path.CANVAS ? {} : {
|
|
_containsPoint: function (p) {
|
|
var inside = false,
|
|
part, p1, p2,
|
|
i, j, k,
|
|
len, len2;
|
|
|
|
// TODO optimization: check if within bounds first
|
|
|
|
if (L.Polyline.prototype._containsPoint.call(this, p, true)) {
|
|
// click on polygon border
|
|
return true;
|
|
}
|
|
|
|
// 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;
|
|
}
|
|
}
|
|
}
|
|
|
|
return inside;
|
|
}
|
|
});
|
|
|
|
|
|
/*
|
|
* Circle canvas specific drawing parts.
|
|
*/
|
|
|
|
L.Circle.include(!L.Path.CANVAS ? {} : {
|
|
_drawPath: function () {
|
|
var p = this._point;
|
|
this._ctx.beginPath();
|
|
this._ctx.arc(p.x, p.y, this._radius, 0, Math.PI * 2, false);
|
|
},
|
|
|
|
_containsPoint: function (p) {
|
|
var center = this._point,
|
|
w2 = this.options.stroke ? this.options.weight / 2 : 0;
|
|
|
|
return (p.distanceTo(center) <= this._radius + w2);
|
|
}
|
|
});
|
|
|
|
|
|
L.GeoJSON = L.FeatureGroup.extend({
|
|
initialize: function (geojson, options) {
|
|
L.Util.setOptions(this, options);
|
|
|
|
this._layers = {};
|
|
|
|
if (geojson) {
|
|
this.addData(geojson);
|
|
}
|
|
},
|
|
|
|
addData: function (geojson) {
|
|
var features = geojson instanceof Array ? geojson : geojson.features,
|
|
i, len;
|
|
|
|
if (features) {
|
|
for (i = 0, len = features.length; i < len; i++) {
|
|
this.addData(features[i]);
|
|
}
|
|
return this;
|
|
}
|
|
|
|
var options = this.options;
|
|
|
|
if (options.filter && !options.filter(geojson)) { return; }
|
|
|
|
var layer = L.GeoJSON.geometryToLayer(geojson, options.pointToLayer);
|
|
layer.feature = geojson;
|
|
|
|
this.resetStyle(layer);
|
|
|
|
if (options.onEachFeature) {
|
|
options.onEachFeature(geojson, layer);
|
|
}
|
|
|
|
return this.addLayer(layer);
|
|
},
|
|
|
|
resetStyle: function (layer) {
|
|
var style = this.options.style;
|
|
if (style) {
|
|
this._setLayerStyle(layer, style);
|
|
}
|
|
},
|
|
|
|
setStyle: function (style) {
|
|
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.Util.extend(L.GeoJSON, {
|
|
geometryToLayer: function (geojson, pointToLayer) {
|
|
var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson,
|
|
coords = geometry.coordinates,
|
|
layers = [],
|
|
latlng, latlngs, i, len, layer;
|
|
|
|
switch (geometry.type) {
|
|
case 'Point':
|
|
latlng = this.coordsToLatLng(coords);
|
|
return pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng);
|
|
|
|
case 'MultiPoint':
|
|
for (i = 0, len = coords.length; i < len; i++) {
|
|
latlng = this.coordsToLatLng(coords[i]);
|
|
layer = pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng);
|
|
layers.push(layer);
|
|
}
|
|
return new L.FeatureGroup(layers);
|
|
|
|
case 'LineString':
|
|
latlngs = this.coordsToLatLngs(coords);
|
|
return new L.Polyline(latlngs);
|
|
|
|
case 'Polygon':
|
|
latlngs = this.coordsToLatLngs(coords, 1);
|
|
return new L.Polygon(latlngs);
|
|
|
|
case 'MultiLineString':
|
|
latlngs = this.coordsToLatLngs(coords, 1);
|
|
return new L.MultiPolyline(latlngs);
|
|
|
|
case "MultiPolygon":
|
|
latlngs = this.coordsToLatLngs(coords, 2);
|
|
return new L.MultiPolygon(latlngs);
|
|
|
|
case "GeometryCollection":
|
|
for (i = 0, len = geometry.geometries.length; i < len; i++) {
|
|
layer = this.geometryToLayer(geometry.geometries[i], pointToLayer);
|
|
layers.push(layer);
|
|
}
|
|
return new L.FeatureGroup(layers);
|
|
|
|
default:
|
|
throw new Error('Invalid GeoJSON object.');
|
|
}
|
|
},
|
|
|
|
coordsToLatLng: function (coords, reverse) { // (Array, Boolean) -> LatLng
|
|
var lat = parseFloat(coords[reverse ? 0 : 1]),
|
|
lng = parseFloat(coords[reverse ? 1 : 0]);
|
|
|
|
return new L.LatLng(lat, lng, true);
|
|
},
|
|
|
|
coordsToLatLngs: function (coords, levelsDeep, reverse) { // (Array, Number, Boolean) -> Array
|
|
var latlng,
|
|
latlngs = [],
|
|
i, len;
|
|
|
|
for (i = 0, len = coords.length; i < len; i++) {
|
|
latlng = levelsDeep ?
|
|
this.coordsToLatLngs(coords[i], levelsDeep - 1, reverse) :
|
|
this.coordsToLatLng(coords[i], reverse);
|
|
|
|
latlngs.push(latlng);
|
|
}
|
|
|
|
return latlngs;
|
|
}
|
|
});
|
|
|
|
L.geoJson = function (geojson, options) {
|
|
return new L.GeoJSON(geojson, options);
|
|
};
|
|
|
|
|
|
/*
|
|
* L.DomEvent contains functions for working with DOM events.
|
|
*/
|
|
|
|
L.DomEvent = {
|
|
/* inpired by John Resig, Dean Edwards and YUI addEvent implementations */
|
|
addListener: function (obj, type, fn, context) { // (HTMLElement, String, Function[, Object])
|
|
|
|
var id = L.Util.stamp(fn),
|
|
key = '_leaflet_' + type + id,
|
|
handler, originalHandler, newType;
|
|
|
|
if (obj[key]) { return this; }
|
|
|
|
handler = function (e) {
|
|
return fn.call(context || obj, e || L.DomEvent._getEvent());
|
|
};
|
|
|
|
if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener) {
|
|
return 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')) {
|
|
|
|
originalHandler = handler;
|
|
newType = (type === 'mouseenter' ? 'mouseover' : 'mouseout');
|
|
|
|
handler = function (e) {
|
|
if (!L.DomEvent._checkMouse(obj, e)) { return; }
|
|
return originalHandler(e);
|
|
};
|
|
|
|
obj.addEventListener(newType, handler, false);
|
|
|
|
} else {
|
|
obj.addEventListener(type, handler, false);
|
|
}
|
|
|
|
} else if ('attachEvent' in obj) {
|
|
obj.attachEvent("on" + type, handler);
|
|
}
|
|
|
|
obj[key] = handler;
|
|
|
|
return this;
|
|
},
|
|
|
|
removeListener: function (obj, type, fn) { // (HTMLElement, String, Function)
|
|
|
|
var id = L.Util.stamp(fn),
|
|
key = '_leaflet_' + type + id,
|
|
handler = obj[key];
|
|
|
|
if (!handler) { return; }
|
|
|
|
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 if ((type === 'mouseenter') || (type === 'mouseleave')) {
|
|
obj.removeEventListener((type === 'mouseenter' ? 'mouseover' : 'mouseout'), handler, false);
|
|
} else {
|
|
obj.removeEventListener(type, handler, false);
|
|
}
|
|
} else if ('detachEvent' in obj) {
|
|
obj.detachEvent("on" + type, handler);
|
|
}
|
|
|
|
obj[key] = null;
|
|
|
|
return this;
|
|
},
|
|
|
|
stopPropagation: function (e) {
|
|
|
|
if (e.stopPropagation) {
|
|
e.stopPropagation();
|
|
} else {
|
|
e.cancelBubble = true;
|
|
}
|
|
return this;
|
|
},
|
|
|
|
disableClickPropagation: function (el) {
|
|
|
|
var stop = L.DomEvent.stopPropagation;
|
|
|
|
return L.DomEvent
|
|
.addListener(el, L.Draggable.START, stop)
|
|
.addListener(el, 'click', stop)
|
|
.addListener(el, '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) {
|
|
|
|
var body = document.body,
|
|
docEl = document.documentElement,
|
|
x = e.pageX ? e.pageX : e.clientX + body.scrollLeft + docEl.scrollLeft,
|
|
y = e.pageY ? e.pageY : e.clientY + body.scrollTop + docEl.scrollTop,
|
|
pos = new L.Point(x, y);
|
|
|
|
return (container ? pos._subtract(L.DomUtil.getViewportOffset(container)) : pos);
|
|
},
|
|
|
|
getWheelDelta: function (e) {
|
|
|
|
var delta = 0;
|
|
|
|
if (e.wheelDelta) {
|
|
delta = e.wheelDelta / 120;
|
|
}
|
|
if (e.detail) {
|
|
delta = -e.detail / 3;
|
|
}
|
|
return delta;
|
|
},
|
|
|
|
// 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);
|
|
},
|
|
|
|
/*jshint noarg:false */
|
|
_getEvent: function () { // evil magic for IE
|
|
|
|
var e = window.event;
|
|
if (!e) {
|
|
var caller = arguments.callee.caller;
|
|
while (caller) {
|
|
e = caller['arguments'][0];
|
|
if (e && window.Event === e.constructor) {
|
|
break;
|
|
}
|
|
caller = caller.caller;
|
|
}
|
|
}
|
|
return e;
|
|
}
|
|
/*jshint noarg:false */
|
|
};
|
|
|
|
L.DomEvent.on = L.DomEvent.addListener;
|
|
L.DomEvent.off = L.DomEvent.removeListener;
|
|
|
|
/*
|
|
* L.Draggable allows you to add dragging capabilities to any element. Supports mobile devices too.
|
|
*/
|
|
|
|
L.Draggable = L.Class.extend({
|
|
includes: L.Mixin.Events,
|
|
|
|
statics: {
|
|
START: L.Browser.touch ? 'touchstart' : 'mousedown',
|
|
END: L.Browser.touch ? 'touchend' : 'mouseup',
|
|
MOVE: L.Browser.touch ? 'touchmove' : 'mousemove',
|
|
TAP_TOLERANCE: 15
|
|
},
|
|
|
|
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, this._onDown, this);
|
|
this._enabled = true;
|
|
},
|
|
|
|
disable: function () {
|
|
if (!this._enabled) {
|
|
return;
|
|
}
|
|
L.DomEvent.off(this._dragStartTarget, L.Draggable.START, this._onDown);
|
|
this._enabled = false;
|
|
this._moved = false;
|
|
},
|
|
|
|
_onDown: function (e) {
|
|
if ((!L.Browser.touch && e.shiftKey) || ((e.which !== 1) && (e.button !== 1) && !e.touches)) {
|
|
return;
|
|
}
|
|
|
|
this._simulateClick = true;
|
|
|
|
if (e.touches && e.touches.length > 1) {
|
|
this._simulateClick = false;
|
|
return;
|
|
}
|
|
|
|
var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e),
|
|
el = first.target;
|
|
|
|
L.DomEvent.preventDefault(e);
|
|
|
|
if (L.Browser.touch && el.tagName.toLowerCase() === 'a') {
|
|
L.DomUtil.addClass(el, 'leaflet-active');
|
|
}
|
|
|
|
this._moved = false;
|
|
if (this._moving) {
|
|
return;
|
|
}
|
|
|
|
this._startPoint = new L.Point(first.clientX, first.clientY);
|
|
|
|
L.DomEvent.on(document, L.Draggable.MOVE, this._onMove, this);
|
|
L.DomEvent.on(document, L.Draggable.END, this._onUp, this);
|
|
},
|
|
|
|
_onMove: function (e) {
|
|
if (e.touches && e.touches.length > 1) { return; }
|
|
|
|
var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e),
|
|
newPoint = new L.Point(first.clientX, first.clientY),
|
|
diffVec = newPoint.subtract(this._startPoint);
|
|
|
|
if (!diffVec.x && !diffVec.y) { return; }
|
|
|
|
L.DomEvent.preventDefault(e);
|
|
|
|
if (!this._moved) {
|
|
this.fire('dragstart');
|
|
this._moved = true;
|
|
|
|
this._startPos = L.DomUtil.getPosition(this._element).subtract(diffVec);
|
|
|
|
if (!L.Browser.touch) {
|
|
L.DomUtil.disableTextSelection();
|
|
this._setMovingCursor();
|
|
}
|
|
}
|
|
|
|
this._newPos = this._startPos.add(diffVec);
|
|
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 (e) {
|
|
if (this._simulateClick && e.changedTouches) {
|
|
var first = e.changedTouches[0],
|
|
el = first.target,
|
|
dist = (this._newPos && this._newPos.distanceTo(this._startPos)) || 0;
|
|
|
|
if (el.tagName.toLowerCase() === 'a') {
|
|
L.DomUtil.removeClass(el, 'leaflet-active');
|
|
}
|
|
|
|
if (dist < L.Draggable.TAP_TOLERANCE) {
|
|
this._simulateEvent('click', first);
|
|
}
|
|
}
|
|
|
|
if (!L.Browser.touch) {
|
|
L.DomUtil.enableTextSelection();
|
|
this._restoreCursor();
|
|
}
|
|
|
|
L.DomEvent.off(document, L.Draggable.MOVE, this._onMove);
|
|
L.DomEvent.off(document, L.Draggable.END, this._onUp);
|
|
|
|
if (this._moved) {
|
|
// ensure drag is not fired after dragend
|
|
L.Util.cancelAnimFrame(this._animRequest);
|
|
|
|
this.fire('dragend');
|
|
}
|
|
this._moving = false;
|
|
},
|
|
|
|
_setMovingCursor: function () {
|
|
L.DomUtil.addClass(document.body, 'leaflet-dragging');
|
|
},
|
|
|
|
_restoreCursor: function () {
|
|
L.DomUtil.removeClass(document.body, 'leaflet-dragging');
|
|
},
|
|
|
|
_simulateEvent: function (type, e) {
|
|
var simulatedEvent = document.createEvent('MouseEvents');
|
|
|
|
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);
|
|
}
|
|
});
|
|
|
|
|
|
/*
|
|
* L.Handler classes are used internally to inject interaction features 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 internally by L.Map to make the map draggable.
|
|
*/
|
|
|
|
L.Map.mergeOptions({
|
|
dragging: true,
|
|
|
|
inertia: !L.Browser.android23,
|
|
inertiaDeceleration: 5000, // px/s^2
|
|
inertiaMaxSpeed: 4000, // px/s
|
|
inertiaThreshold: L.Browser.touch ? 32 : 18, // ms
|
|
|
|
// TODO refactor, move to CRS
|
|
worldCopyJump: true
|
|
});
|
|
|
|
L.Map.Drag = L.Handler.extend({
|
|
addHooks: function () {
|
|
if (!this._draggable) {
|
|
this._draggable = new L.Draggable(this._map._mapPane, this._map._container);
|
|
|
|
this._draggable.on({
|
|
'dragstart': this._onDragStart,
|
|
'drag': this._onDrag,
|
|
'dragend': this._onDragEnd
|
|
}, this);
|
|
|
|
var options = this._map.options;
|
|
|
|
if (options.worldCopyJump) {
|
|
this._draggable.on('predrag', this._onPreDrag, this);
|
|
this._map.on('viewreset', this._onViewReset, this);
|
|
}
|
|
}
|
|
this._draggable.enable();
|
|
},
|
|
|
|
removeHooks: function () {
|
|
this._draggable.disable();
|
|
},
|
|
|
|
moved: function () {
|
|
return this._draggable && this._draggable._moved;
|
|
},
|
|
|
|
_onDragStart: function () {
|
|
var map = this._map;
|
|
|
|
if (map._panAnim) {
|
|
map._panAnim.stop();
|
|
}
|
|
|
|
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] > 200) {
|
|
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(new L.LatLng(0, 0));
|
|
|
|
this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;
|
|
this._worldWidth = this._map.project(new L.LatLng(0, 180)).x;
|
|
},
|
|
|
|
_onPreDrag: function () {
|
|
// TODO refactor to be able to adjust map pane position after zoom
|
|
var map = this._map,
|
|
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 () {
|
|
var map = this._map,
|
|
options = map.options,
|
|
delay = +new Date() - this._lastTime,
|
|
|
|
noInertia = !options.inertia ||
|
|
delay > options.inertiaThreshold ||
|
|
this._positions[0] === undefined;
|
|
|
|
if (noInertia) {
|
|
map.fire('moveend');
|
|
|
|
} else {
|
|
|
|
var direction = this._lastPos.subtract(this._positions[0]),
|
|
duration = (this._lastTime + delay - this._times[0]) / 1000,
|
|
|
|
speedVector = direction.multiplyBy(0.58 / duration),
|
|
speed = speedVector.distanceTo(new L.Point(0, 0)),
|
|
|
|
limitedSpeed = Math.min(options.inertiaMaxSpeed, speed),
|
|
limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed),
|
|
|
|
decelerationDuration = limitedSpeed / options.inertiaDeceleration,
|
|
offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round();
|
|
|
|
L.Util.requestAnimFrame(L.Util.bind(function () {
|
|
this._map.panBy(offset, decelerationDuration);
|
|
}, this));
|
|
}
|
|
|
|
map.fire('dragend');
|
|
|
|
if (options.maxBounds) {
|
|
// TODO predrag validation instead of animation
|
|
L.Util.requestAnimFrame(this._panInsideMaxBounds, map, true, map._container);
|
|
}
|
|
},
|
|
|
|
_panInsideMaxBounds: function () {
|
|
this.panInsideBounds(this.options.maxBounds);
|
|
}
|
|
});
|
|
|
|
L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag);
|
|
|
|
|
|
/*
|
|
* L.Handler.DoubleClickZoom is used internally by L.Map to add double-click zooming.
|
|
*/
|
|
|
|
L.Map.mergeOptions({
|
|
doubleClickZoom: true
|
|
});
|
|
|
|
L.Map.DoubleClickZoom = L.Handler.extend({
|
|
addHooks: function () {
|
|
this._map.on('dblclick', this._onDoubleClick);
|
|
},
|
|
|
|
removeHooks: function () {
|
|
this._map.off('dblclick', this._onDoubleClick);
|
|
},
|
|
|
|
_onDoubleClick: function (e) {
|
|
this.setView(e.latlng, this._zoom + 1);
|
|
}
|
|
});
|
|
|
|
L.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom);
|
|
|
|
/*
|
|
* L.Handler.ScrollWheelZoom is used internally by L.Map to enable mouse scroll wheel zooming on the map.
|
|
*/
|
|
|
|
L.Map.mergeOptions({
|
|
scrollWheelZoom: !L.Browser.touch
|
|
});
|
|
|
|
L.Map.ScrollWheelZoom = L.Handler.extend({
|
|
addHooks: function () {
|
|
L.DomEvent.on(this._map._container, 'mousewheel', this._onWheelScroll, this);
|
|
this._delta = 0;
|
|
},
|
|
|
|
removeHooks: function () {
|
|
L.DomEvent.off(this._map._container, 'mousewheel', this._onWheelScroll);
|
|
},
|
|
|
|
_onWheelScroll: function (e) {
|
|
var delta = L.DomEvent.getWheelDelta(e);
|
|
|
|
this._delta += delta;
|
|
this._lastMousePos = this._map.mouseEventToContainerPoint(e);
|
|
|
|
clearTimeout(this._timer);
|
|
this._timer = setTimeout(L.Util.bind(this._performZoom, this), 40);
|
|
|
|
L.DomEvent.preventDefault(e);
|
|
},
|
|
|
|
_performZoom: function () {
|
|
var map = this._map,
|
|
delta = Math.round(this._delta),
|
|
zoom = map.getZoom();
|
|
|
|
delta = Math.max(Math.min(delta, 4), -4);
|
|
delta = map._limitZoom(zoom + delta) - zoom;
|
|
|
|
this._delta = 0;
|
|
|
|
if (!delta) { return; }
|
|
|
|
var newZoom = zoom + delta,
|
|
newCenter = this._getCenterForScrollWheelZoom(this._lastMousePos, newZoom);
|
|
|
|
map.setView(newCenter, newZoom);
|
|
},
|
|
|
|
_getCenterForScrollWheelZoom: function (mousePos, newZoom) {
|
|
var map = this._map,
|
|
scale = map.getZoomScale(newZoom),
|
|
viewHalf = map.getSize().divideBy(2),
|
|
centerOffset = mousePos.subtract(viewHalf).multiplyBy(1 - 1 / scale),
|
|
newCenterPoint = map._getTopLeftPoint().add(viewHalf).add(centerOffset);
|
|
|
|
return map.unproject(newCenterPoint);
|
|
}
|
|
});
|
|
|
|
L.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom);
|
|
|
|
|
|
L.Util.extend(L.DomEvent, {
|
|
// inspired by Zepto touch code by Thomas Fuchs
|
|
addDoubleTapListener: function (obj, handler, id) {
|
|
var last,
|
|
doubleTap = false,
|
|
delay = 250,
|
|
touch,
|
|
pre = '_leaflet_',
|
|
touchstart = 'touchstart',
|
|
touchend = 'touchend';
|
|
|
|
function onTouchStart(e) {
|
|
if (e.touches.length !== 1) {
|
|
return;
|
|
}
|
|
|
|
var now = Date.now(),
|
|
delta = now - (last || now);
|
|
|
|
touch = e.touches[0];
|
|
doubleTap = (delta > 0 && delta <= delay);
|
|
last = now;
|
|
}
|
|
function onTouchEnd(e) {
|
|
if (doubleTap) {
|
|
touch.type = 'dblclick';
|
|
handler(touch);
|
|
last = null;
|
|
}
|
|
}
|
|
obj[pre + touchstart + id] = onTouchStart;
|
|
obj[pre + touchend + id] = onTouchEnd;
|
|
|
|
obj.addEventListener(touchstart, onTouchStart, false);
|
|
obj.addEventListener(touchend, onTouchEnd, false);
|
|
return this;
|
|
},
|
|
|
|
removeDoubleTapListener: function (obj, id) {
|
|
var pre = '_leaflet_';
|
|
obj.removeEventListener(obj, obj[pre + 'touchstart' + id], false);
|
|
obj.removeEventListener(obj, obj[pre + 'touchend' + id], false);
|
|
return this;
|
|
}
|
|
});
|
|
|
|
|
|
/*
|
|
* L.Handler.TouchZoom is used internally by L.Map to add touch-zooming on Webkit-powered mobile browsers.
|
|
*/
|
|
|
|
L.Map.mergeOptions({
|
|
touchZoom: L.Browser.touch && !L.Browser.android23
|
|
});
|
|
|
|
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, true);
|
|
this._startDist = p1.distanceTo(p2);
|
|
|
|
this._moved = false;
|
|
this._zooming = true;
|
|
|
|
this._centerOffset = viewCenter.subtract(this._startCenter);
|
|
|
|
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) { return; }
|
|
|
|
var map = this._map;
|
|
|
|
var 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, true).subtract(this._startCenter);
|
|
|
|
if (this._scale === 1) { return; }
|
|
|
|
if (!this._moved) {
|
|
L.DomUtil.addClass(map._mapPane, 'leaflet-zoom-anim leaflet-touching');
|
|
|
|
map
|
|
.fire('movestart')
|
|
.fire('zoomstart')
|
|
._prepareTileBg();
|
|
|
|
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,
|
|
origin = this._getScaleOrigin(),
|
|
center = map.layerPointToLatLng(origin);
|
|
|
|
map.fire('zoomanim', {
|
|
center: center,
|
|
zoom: map.getScaleZoom(this._scale)
|
|
});
|
|
|
|
// Used 2 translates instead of transform-origin because of a very strange bug -
|
|
// it didn't count the origin on the first touch-zoom but worked correctly afterwards
|
|
|
|
map._tileBg.style[L.DomUtil.TRANSFORM] =
|
|
L.DomUtil.getTranslateString(this._delta) + ' ' +
|
|
L.DomUtil.getScaleString(this._scale, this._startCenter);
|
|
},
|
|
|
|
_onTouchEnd: function (e) {
|
|
if (!this._moved || !this._zooming) { return; }
|
|
|
|
var map = this._map;
|
|
|
|
this._zooming = false;
|
|
L.DomUtil.removeClass(map._mapPane, 'leaflet-touching');
|
|
|
|
L.DomEvent
|
|
.off(document, 'touchmove', this._onTouchMove)
|
|
.off(document, 'touchend', this._onTouchEnd);
|
|
|
|
var origin = this._getScaleOrigin(),
|
|
center = map.layerPointToLatLng(origin),
|
|
|
|
oldZoom = map.getZoom(),
|
|
floatZoomDelta = map.getScaleZoom(this._scale) - oldZoom,
|
|
roundZoomDelta = (floatZoomDelta > 0 ? Math.ceil(floatZoomDelta) : Math.floor(floatZoomDelta)),
|
|
zoom = map._limitZoom(oldZoom + roundZoomDelta);
|
|
|
|
map.fire('zoomanim', {
|
|
center: center,
|
|
zoom: zoom
|
|
});
|
|
|
|
map._runAnimation(center, zoom, map.getZoomScale(zoom) / this._scale, origin, true);
|
|
},
|
|
|
|
_getScaleOrigin: 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.Handler.ShiftDragZoom is used internally by L.Map to add shift-drag zoom (zoom to a selected bounding box).
|
|
*/
|
|
|
|
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);
|
|
},
|
|
|
|
_onMouseDown: function (e) {
|
|
if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; }
|
|
|
|
L.DomUtil.disableTextSelection();
|
|
|
|
this._startLayerPoint = this._map.mouseEventToLayerPoint(e);
|
|
|
|
this._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._pane);
|
|
L.DomUtil.setPosition(this._box, this._startLayerPoint);
|
|
|
|
//TODO refactor: move cursor to styles
|
|
this._container.style.cursor = 'crosshair';
|
|
|
|
L.DomEvent
|
|
.on(document, 'mousemove', this._onMouseMove, this)
|
|
.on(document, 'mouseup', this._onMouseUp, this)
|
|
.preventDefault(e);
|
|
|
|
this._map.fire("boxzoomstart");
|
|
},
|
|
|
|
_onMouseMove: function (e) {
|
|
var startPoint = this._startLayerPoint,
|
|
box = this._box,
|
|
|
|
layerPoint = this._map.mouseEventToLayerPoint(e),
|
|
offset = layerPoint.subtract(startPoint),
|
|
|
|
newPos = new L.Point(
|
|
Math.min(layerPoint.x, startPoint.x),
|
|
Math.min(layerPoint.y, startPoint.y));
|
|
|
|
L.DomUtil.setPosition(box, newPos);
|
|
|
|
// TODO refactor: remove hardcoded 4 pixels
|
|
box.style.width = (Math.abs(offset.x) - 4) + 'px';
|
|
box.style.height = (Math.abs(offset.y) - 4) + 'px';
|
|
},
|
|
|
|
_onMouseUp: function (e) {
|
|
this._pane.removeChild(this._box);
|
|
this._container.style.cursor = '';
|
|
|
|
L.DomUtil.enableTextSelection();
|
|
|
|
L.DomEvent
|
|
.off(document, 'mousemove', this._onMouseMove)
|
|
.off(document, 'mouseup', this._onMouseUp);
|
|
|
|
var map = this._map,
|
|
layerPoint = map.mouseEventToLayerPoint(e);
|
|
|
|
var bounds = new L.LatLngBounds(
|
|
map.layerPointToLatLng(this._startLayerPoint),
|
|
map.layerPointToLatLng(layerPoint));
|
|
|
|
map.fitBounds(bounds);
|
|
|
|
map.fire("boxzoomend", {
|
|
boxZoomBounds: bounds
|
|
});
|
|
}
|
|
});
|
|
|
|
L.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom);
|
|
|
|
|
|
L.Map.mergeOptions({
|
|
keyboard: true,
|
|
keyboardPanOffset: 80,
|
|
keyboardZoomOffset: 1
|
|
});
|
|
|
|
L.Map.Keyboard = L.Handler.extend({
|
|
|
|
// list of e.keyCode values for particular actions
|
|
keyCodes: {
|
|
left: [37],
|
|
right: [39],
|
|
down: [40],
|
|
up: [38],
|
|
zoomIn: [187, 107, 61],
|
|
zoomOut: [189, 109]
|
|
},
|
|
|
|
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
|
|
.addListener(container, 'focus', this._onFocus, this)
|
|
.addListener(container, 'blur', this._onBlur, this)
|
|
.addListener(container, 'mousedown', this._onMouseDown, this);
|
|
|
|
this._map
|
|
.on('focus', this._addHooks, this)
|
|
.on('blur', this._removeHooks, this);
|
|
},
|
|
|
|
removeHooks: function () {
|
|
this._removeHooks();
|
|
|
|
var container = this._map._container;
|
|
L.DomEvent
|
|
.removeListener(container, 'focus', this._onFocus, this)
|
|
.removeListener(container, 'blur', this._onBlur, this)
|
|
.removeListener(container, 'mousedown', this._onMouseDown, this);
|
|
|
|
this._map
|
|
.off('focus', this._addHooks, this)
|
|
.off('blur', this._removeHooks, this);
|
|
},
|
|
|
|
_onMouseDown: function () {
|
|
if (!this._focused) {
|
|
this._map._container.focus();
|
|
}
|
|
},
|
|
|
|
_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.addListener(document, 'keydown', this._onKeyDown, this);
|
|
},
|
|
|
|
_removeHooks: function () {
|
|
L.DomEvent.removeListener(document, 'keydown', this._onKeyDown, this);
|
|
},
|
|
|
|
_onKeyDown: function (e) {
|
|
var key = e.keyCode;
|
|
|
|
if (this._panKeys.hasOwnProperty(key)) {
|
|
this._map.panBy(this._panKeys[key]);
|
|
|
|
} else if (this._zoomKeys.hasOwnProperty(key)) {
|
|
this._map.setZoom(this._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)
|
|
.on('dragstart', this._onDragStart, this)
|
|
.on('drag', this._onDrag, this)
|
|
.on('dragend', this._onDragEnd, this);
|
|
}
|
|
this._draggable.enable();
|
|
},
|
|
|
|
removeHooks: function () {
|
|
this._draggable.disable();
|
|
},
|
|
|
|
moved: function () {
|
|
return this._draggable && this._draggable._moved;
|
|
},
|
|
|
|
_onDragStart: function (e) {
|
|
this._marker
|
|
.closePopup()
|
|
.fire('movestart')
|
|
.fire('dragstart');
|
|
},
|
|
|
|
_onDrag: function (e) {
|
|
// update shadow position
|
|
var iconPos = L.DomUtil.getPosition(this._marker._icon);
|
|
if (this._marker._shadow) {
|
|
L.DomUtil.setPosition(this._marker._shadow, iconPos);
|
|
}
|
|
|
|
this._marker._latlng = this._marker._map.layerPointToLatLng(iconPos);
|
|
|
|
this._marker
|
|
.fire('move')
|
|
.fire('drag');
|
|
},
|
|
|
|
_onDragEnd: function () {
|
|
this._marker
|
|
.fire('moveend')
|
|
.fire('dragend');
|
|
}
|
|
});
|
|
|
|
|
|
L.Handler.PolyEdit = 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.Util.setOptions(this, options);
|
|
},
|
|
|
|
addHooks: function () {
|
|
if (this._poly._map) {
|
|
if (!this._markerGroup) {
|
|
this._initMarkers();
|
|
}
|
|
this._poly._map.addLayer(this._markerGroup);
|
|
}
|
|
},
|
|
|
|
removeHooks: function () {
|
|
if (this._poly._map) {
|
|
this._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;
|
|
},
|
|
|
|
_fireEdit: function () {
|
|
this._poly.fire('edit');
|
|
},
|
|
|
|
_onMarkerDrag: function (e) {
|
|
var marker = e.target;
|
|
|
|
L.Util.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) {
|
|
// Default action on marker click is to remove that marker, but if we remove the marker when latlng count < 3, we don't have a valid polyline anymore
|
|
if (this._poly._latlngs.length < 3) {
|
|
return;
|
|
}
|
|
|
|
var marker = e.target,
|
|
i = marker._index;
|
|
|
|
// Check existence of previous and next markers since they wouldn't exist for edge points on the polyline
|
|
if (marker._prev && marker._next) {
|
|
this._createMiddleMarker(marker._prev, marker._next);
|
|
this._updatePrevNext(marker._prev, marker._next);
|
|
}
|
|
|
|
// The marker itself is guaranteed to exist and present in the layer, since we managed to click on it
|
|
this._markerGroup.removeLayer(marker);
|
|
// Check for the existence of middle left or middle right
|
|
if (marker._middleLeft) {
|
|
this._markerGroup.removeLayer(marker._middleLeft);
|
|
}
|
|
if (marker._middleRight) {
|
|
this._markerGroup.removeLayer(marker._middleRight);
|
|
}
|
|
this._markers.splice(i, 1);
|
|
this._poly.spliceLatLngs(i, 1);
|
|
this._updateIndexes(i, -1);
|
|
this._poly.fire('edit');
|
|
},
|
|
|
|
_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)
|
|
.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);
|
|
};
|
|
|
|
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._poly.fire('edit');
|
|
};
|
|
|
|
marker
|
|
.on('click', onClick, this)
|
|
.on('dragstart', onDragStart, this)
|
|
.on('dragend', onDragEnd, this);
|
|
|
|
this._markerGroup.addLayer(marker);
|
|
},
|
|
|
|
_updatePrevNext: function (marker1, marker2) {
|
|
marker1._next = marker2;
|
|
marker2._prev = marker1;
|
|
},
|
|
|
|
_getMiddleLatLng: function (marker1, marker2) {
|
|
var map = this._poly._map,
|
|
p1 = map.latLngToLayerPoint(marker1.getLatLng()),
|
|
p2 = map.latLngToLayerPoint(marker2.getLatLng());
|
|
|
|
return map.layerPointToLatLng(p1._add(p2).divideBy(2));
|
|
}
|
|
});
|
|
|
|
|
|
|
|
L.Control = L.Class.extend({
|
|
options: {
|
|
position: 'topright'
|
|
},
|
|
|
|
initialize: function (options) {
|
|
L.Util.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;
|
|
},
|
|
|
|
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;
|
|
},
|
|
|
|
removeFrom: function (map) {
|
|
var pos = this.getPosition(),
|
|
corner = map._controlCorners[pos];
|
|
|
|
corner.removeChild(this._container);
|
|
this._map = null;
|
|
|
|
if (this.onRemove) {
|
|
this.onRemove(map);
|
|
}
|
|
|
|
return this;
|
|
}
|
|
});
|
|
|
|
L.control = function (options) {
|
|
return new L.Control(options);
|
|
};
|
|
|
|
|
|
L.Map.include({
|
|
addControl: function (control) {
|
|
control.addTo(this);
|
|
return this;
|
|
},
|
|
|
|
removeControl: function (control) {
|
|
control.removeFrom(this);
|
|
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');
|
|
}
|
|
});
|
|
|
|
|
|
L.Control.Zoom = L.Control.extend({
|
|
options: {
|
|
position: 'topleft'
|
|
},
|
|
|
|
onAdd: function (map) {
|
|
var className = 'leaflet-control-zoom',
|
|
container = L.DomUtil.create('div', className);
|
|
|
|
this._createButton('Zoom in', className + '-in', container, map.zoomIn, map);
|
|
this._createButton('Zoom out', className + '-out', container, map.zoomOut, map);
|
|
|
|
return container;
|
|
},
|
|
|
|
_createButton: function (title, className, container, fn, context) {
|
|
var link = L.DomUtil.create('a', className, container);
|
|
link.href = '#';
|
|
link.title = title;
|
|
|
|
L.DomEvent
|
|
.on(link, 'click', L.DomEvent.stopPropagation)
|
|
.on(link, 'click', L.DomEvent.preventDefault)
|
|
.on(link, 'click', fn, context)
|
|
.on(link, 'dblclick', L.DomEvent.stopPropagation);
|
|
|
|
return link;
|
|
}
|
|
});
|
|
|
|
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 = L.Control.extend({
|
|
options: {
|
|
position: 'bottomright',
|
|
prefix: 'Powered by <a href="http://leaflet.cloudmade.com">Leaflet</a>'
|
|
},
|
|
|
|
initialize: function (options) {
|
|
L.Util.setOptions(this, options);
|
|
|
|
this._attributions = {};
|
|
},
|
|
|
|
onAdd: function (map) {
|
|
this._container = L.DomUtil.create('div', 'leaflet-control-attribution');
|
|
L.DomEvent.disableClickPropagation(this._container);
|
|
|
|
map
|
|
.on('layeradd', this._onLayerAdd, this)
|
|
.on('layerremove', this._onLayerRemove, this);
|
|
|
|
this._update();
|
|
|
|
return this._container;
|
|
},
|
|
|
|
onRemove: function (map) {
|
|
map
|
|
.off('layeradd', this._onLayerAdd)
|
|
.off('layerremove', this._onLayerRemove);
|
|
|
|
},
|
|
|
|
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; }
|
|
|
|
this._attributions[text]--;
|
|
this._update();
|
|
|
|
return this;
|
|
},
|
|
|
|
_update: function () {
|
|
if (!this._map) { return; }
|
|
|
|
var attribs = [];
|
|
|
|
for (var i in this._attributions) {
|
|
if (this._attributions.hasOwnProperty(i) && 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(' — ');
|
|
},
|
|
|
|
_onLayerAdd: function (e) {
|
|
if (e.layer.getAttribution) {
|
|
this.addAttribution(e.layer.getAttribution());
|
|
}
|
|
},
|
|
|
|
_onLayerRemove: function (e) {
|
|
if (e.layer.getAttribution) {
|
|
this.removeAttribution(e.layer.getAttribution());
|
|
}
|
|
}
|
|
});
|
|
|
|
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 = L.Control.extend({
|
|
options: {
|
|
position: 'bottomleft',
|
|
maxWidth: 100,
|
|
metric: true,
|
|
imperial: true,
|
|
updateWhenIdle: false
|
|
},
|
|
|
|
onAdd: function (map) {
|
|
this._map = map;
|
|
|
|
var className = 'leaflet-control-scale',
|
|
container = L.DomUtil.create('div', className),
|
|
options = this.options;
|
|
|
|
this._addScales(options, className, container);
|
|
|
|
map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
|
|
this._update();
|
|
|
|
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 + '-line', container);
|
|
}
|
|
if (options.imperial) {
|
|
this._iScale = L.DomUtil.create('div', className + '-line', container);
|
|
}
|
|
},
|
|
|
|
_update: function () {
|
|
var bounds = this._map.getBounds(),
|
|
centerLat = bounds.getCenter().lat,
|
|
halfWorldMeters = 6378137 * Math.PI * Math.cos(centerLat * Math.PI / 180),
|
|
dist = halfWorldMeters * (bounds.getNorthEast().lng - bounds.getSouthWest().lng) / 180,
|
|
|
|
size = this._map.getSize(),
|
|
options = this.options,
|
|
maxMeters = 0;
|
|
|
|
if (size.x > 0) {
|
|
maxMeters = dist * (options.maxWidth / size.x);
|
|
}
|
|
|
|
this._updateScales(options, maxMeters);
|
|
},
|
|
|
|
_updateScales: function (options, maxMeters) {
|
|
if (options.metric && maxMeters) {
|
|
this._updateMetric(maxMeters);
|
|
}
|
|
|
|
if (options.imperial && maxMeters) {
|
|
this._updateImperial(maxMeters);
|
|
}
|
|
},
|
|
|
|
_updateMetric: function (maxMeters) {
|
|
var meters = this._getRoundNum(maxMeters);
|
|
|
|
this._mScale.style.width = this._getScaleWidth(meters / maxMeters) + 'px';
|
|
this._mScale.innerHTML = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km';
|
|
},
|
|
|
|
_updateImperial: function (maxMeters) {
|
|
var maxFeet = maxMeters * 3.2808399,
|
|
scale = this._iScale,
|
|
maxMiles, miles, feet;
|
|
|
|
if (maxFeet > 5280) {
|
|
maxMiles = maxFeet / 5280;
|
|
miles = this._getRoundNum(maxMiles);
|
|
|
|
scale.style.width = this._getScaleWidth(miles / maxMiles) + 'px';
|
|
scale.innerHTML = miles + ' mi';
|
|
|
|
} else {
|
|
feet = this._getRoundNum(maxFeet);
|
|
|
|
scale.style.width = this._getScaleWidth(feet / maxFeet) + 'px';
|
|
scale.innerHTML = feet + ' ft';
|
|
}
|
|
},
|
|
|
|
_getScaleWidth: function (ratio) {
|
|
return Math.round(this.options.maxWidth * ratio) - 10;
|
|
},
|
|
|
|
_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 = L.Control.extend({
|
|
options: {
|
|
collapsed: true,
|
|
position: 'topright',
|
|
autoZIndex: true
|
|
},
|
|
|
|
initialize: function (baseLayers, overlays, options) {
|
|
L.Util.setOptions(this, options);
|
|
|
|
this._layers = {};
|
|
this._lastZIndex = 0;
|
|
|
|
for (var i in baseLayers) {
|
|
if (baseLayers.hasOwnProperty(i)) {
|
|
this._addLayer(baseLayers[i], i);
|
|
}
|
|
}
|
|
|
|
for (i in overlays) {
|
|
if (overlays.hasOwnProperty(i)) {
|
|
this._addLayer(overlays[i], i, true);
|
|
}
|
|
}
|
|
},
|
|
|
|
onAdd: function (map) {
|
|
this._initLayout();
|
|
this._update();
|
|
|
|
return this._container;
|
|
},
|
|
|
|
addBaseLayer: function (layer, name) {
|
|
this._addLayer(layer, name);
|
|
this._update();
|
|
return this;
|
|
},
|
|
|
|
addOverlay: function (layer, name) {
|
|
this._addLayer(layer, name, true);
|
|
this._update();
|
|
return this;
|
|
},
|
|
|
|
removeLayer: function (layer) {
|
|
var id = L.Util.stamp(layer);
|
|
delete this._layers[id];
|
|
this._update();
|
|
return this;
|
|
},
|
|
|
|
_initLayout: function () {
|
|
var className = 'leaflet-control-layers',
|
|
container = this._container = L.DomUtil.create('div', className);
|
|
|
|
if (!L.Browser.touch) {
|
|
L.DomEvent.disableClickPropagation(container);
|
|
} else {
|
|
L.DomEvent.on(container, 'click', L.DomEvent.stopPropagation);
|
|
}
|
|
|
|
var form = this._form = L.DomUtil.create('form', className + '-list');
|
|
|
|
if (this.options.collapsed) {
|
|
L.DomEvent
|
|
.on(container, 'mouseover', this._expand, this)
|
|
.on(container, 'mouseout', 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.stopPropagation)
|
|
.on(link, 'click', L.DomEvent.preventDefault)
|
|
.on(link, 'click', this._expand, this);
|
|
}
|
|
else {
|
|
L.DomEvent.on(link, 'focus', this._expand, this);
|
|
}
|
|
|
|
this._map.on('movestart', 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) {
|
|
var id = L.Util.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;
|
|
}
|
|
|
|
this._baseLayersList.innerHTML = '';
|
|
this._overlaysList.innerHTML = '';
|
|
|
|
var baseLayersPresent = false,
|
|
overlaysPresent = false;
|
|
|
|
for (var i in this._layers) {
|
|
if (this._layers.hasOwnProperty(i)) {
|
|
var obj = this._layers[i];
|
|
this._addItem(obj);
|
|
overlaysPresent = overlaysPresent || obj.overlay;
|
|
baseLayersPresent = baseLayersPresent || !obj.overlay;
|
|
}
|
|
}
|
|
|
|
this._separator.style.display = (overlaysPresent && baseLayersPresent ? '' : 'none');
|
|
},
|
|
|
|
// 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" name="' + name + '"';
|
|
if (checked) {
|
|
radioHtml += ' checked="checked"';
|
|
}
|
|
radioHtml += '/>';
|
|
|
|
var radioFragment = document.createElement('div');
|
|
radioFragment.innerHTML = radioHtml;
|
|
|
|
return radioFragment.firstChild;
|
|
},
|
|
|
|
_addItem: function (obj) {
|
|
var label = document.createElement('label'),
|
|
input,
|
|
checked = this._map.hasLayer(obj.layer);
|
|
|
|
if (obj.overlay) {
|
|
input = document.createElement('input');
|
|
input.type = 'checkbox';
|
|
input.defaultChecked = checked;
|
|
} else {
|
|
input = this._createRadioElement('leaflet-base-layers', checked);
|
|
}
|
|
|
|
input.layerId = L.Util.stamp(obj.layer);
|
|
|
|
L.DomEvent.on(input, 'click', this._onInputClick, this);
|
|
|
|
var name = document.createTextNode(' ' + obj.name);
|
|
|
|
label.appendChild(input);
|
|
label.appendChild(name);
|
|
|
|
var container = obj.overlay ? this._overlaysList : this._baseLayersList;
|
|
container.appendChild(label);
|
|
},
|
|
|
|
_onInputClick: function () {
|
|
var i, input, obj,
|
|
inputs = this._form.getElementsByTagName('input'),
|
|
inputsLen = inputs.length;
|
|
|
|
for (i = 0; i < inputsLen; i++) {
|
|
input = inputs[i];
|
|
obj = this._layers[input.layerId];
|
|
|
|
if (input.checked) {
|
|
this._map.addLayer(obj.layer, !obj.overlay);
|
|
} else {
|
|
this._map.removeLayer(obj.layer);
|
|
}
|
|
}
|
|
},
|
|
|
|
_expand: function () {
|
|
L.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded');
|
|
},
|
|
|
|
_collapse: function () {
|
|
this._container.className = this._container.className.replace(' leaflet-control-layers-expanded', '');
|
|
}
|
|
});
|
|
|
|
L.control.layers = function (baseLayers, overlays, options) {
|
|
return new L.Control.Layers(baseLayers, overlays, options);
|
|
};
|
|
|
|
|
|
/*
|
|
* L.PosAnimation is used by Leaflet internally for pan animations
|
|
*/
|
|
|
|
L.PosAnimation = L.Class.extend({
|
|
includes: L.Mixin.Events,
|
|
|
|
run: function (el, newPos, duration) {
|
|
this.stop();
|
|
|
|
this._el = el;
|
|
this._inProgress = true;
|
|
|
|
this.fire('start');
|
|
|
|
el.style[L.DomUtil.TRANSITION] = 'all ' + duration + 's ease-out';
|
|
|
|
L.DomEvent.on(el, L.DomUtil.TRANSITION_END, this._onTransitionEnd, this);
|
|
L.DomUtil.setPosition(el, newPos);
|
|
|
|
// Chrome flickers for some reason if you don't do this
|
|
L.Util.falseFn(el.offsetWidth);
|
|
},
|
|
|
|
stop: function () {
|
|
if (!this._inProgress) { return; }
|
|
|
|
var pos = this._getPos();
|
|
|
|
L.DomUtil.setPosition(this._el, pos);
|
|
this._onTransitionEnd();
|
|
},
|
|
|
|
_transformRe: /(-?[\d\.]+), (-?[\d\.]+)\)/,
|
|
|
|
_getPos: function () {
|
|
var left, top, matches,
|
|
el = this._el,
|
|
style = window.getComputedStyle(el);
|
|
|
|
if (L.Browser.any3d) {
|
|
matches = style[L.DomUtil.TRANSFORM].match(this._transformRe);
|
|
left = parseFloat(matches[1]);
|
|
top = parseFloat(matches[2]);
|
|
} else {
|
|
left = parseFloat(style.left);
|
|
top = parseFloat(style.top);
|
|
}
|
|
|
|
return new L.Point(left, top, true);
|
|
},
|
|
|
|
_onTransitionEnd: function () {
|
|
L.DomEvent.off(this._el, L.DomUtil.TRANSITION_END, this._onTransitionEnd, this);
|
|
|
|
if (!this._inProgress) { return; }
|
|
this._inProgress = false;
|
|
|
|
this._el.style[L.DomUtil.TRANSITION] = '';
|
|
|
|
this.fire('end');
|
|
}
|
|
|
|
});
|
|
|
|
|
|
|
|
L.Map.include({
|
|
|
|
setView: function (center, zoom, forceReset) {
|
|
zoom = this._limitZoom(zoom);
|
|
|
|
var zoomChanged = (this._zoom !== zoom);
|
|
|
|
if (this._loaded && !forceReset && this._layers) {
|
|
var done = (zoomChanged ?
|
|
this._zoomToIfClose && this._zoomToIfClose(center, zoom) :
|
|
this._panByIfClose(center));
|
|
|
|
// exit if animated pan or zoom started
|
|
if (done) {
|
|
clearTimeout(this._sizeTimer);
|
|
return this;
|
|
}
|
|
}
|
|
|
|
// reset the map view
|
|
this._resetView(center, zoom);
|
|
|
|
return this;
|
|
},
|
|
|
|
panBy: function (offset, duration) {
|
|
offset = L.point(offset);
|
|
|
|
if (!(offset.x || offset.y)) {
|
|
return this;
|
|
}
|
|
|
|
if (!this._panAnim) {
|
|
this._panAnim = new L.PosAnimation();
|
|
|
|
this._panAnim.on({
|
|
'step': this._onPanTransitionStep,
|
|
'end': this._onPanTransitionEnd
|
|
}, this);
|
|
}
|
|
|
|
this.fire('movestart');
|
|
|
|
L.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim');
|
|
|
|
var newPos = L.DomUtil.getPosition(this._mapPane).subtract(offset);
|
|
this._panAnim.run(this._mapPane, newPos, duration || 0.25);
|
|
|
|
return this;
|
|
},
|
|
|
|
_onPanTransitionStep: function () {
|
|
this.fire('move');
|
|
},
|
|
|
|
_onPanTransitionEnd: function () {
|
|
L.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim');
|
|
this.fire('moveend');
|
|
},
|
|
|
|
_panByIfClose: function (center) {
|
|
// difference between the new and current centers in pixels
|
|
var offset = this._getCenterOffset(center)._floor();
|
|
|
|
if (this._offsetIsWithinView(offset)) {
|
|
this.panBy(offset);
|
|
return true;
|
|
}
|
|
return false;
|
|
},
|
|
|
|
_offsetIsWithinView: function (offset, multiplyFactor) {
|
|
var m = multiplyFactor || 1,
|
|
size = this.getSize();
|
|
|
|
return (Math.abs(offset.x) <= size.x * m) &&
|
|
(Math.abs(offset.y) <= size.y * m);
|
|
}
|
|
});
|
|
|
|
|
|
/*
|
|
* L.PosAnimation fallback implementation that powers Leaflet pan animations
|
|
* in browsers that don't support CSS3 Transitions
|
|
*/
|
|
|
|
L.PosAnimation = L.DomUtil.TRANSITION ? L.PosAnimation : L.Class.extend({
|
|
includes: L.Mixin.Events,
|
|
|
|
run: function (el, newPos, duration) {
|
|
this.stop();
|
|
|
|
this._el = el;
|
|
this._inProgress = true;
|
|
this._duration = duration;
|
|
|
|
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();
|
|
this._complete();
|
|
},
|
|
|
|
_animate: function () {
|
|
this._animId = L.Util.requestAnimFrame(this._animate, this, false, this._el);
|
|
this._step();
|
|
},
|
|
|
|
_step: function () {
|
|
var elapsed = (+new Date()) - this._startTime,
|
|
duration = this._duration * 1000;
|
|
|
|
if (elapsed < duration) {
|
|
this._runFrame(this._easeOut(elapsed / duration));
|
|
} else {
|
|
this._runFrame(1);
|
|
this._complete();
|
|
}
|
|
},
|
|
|
|
_runFrame: function (progress) {
|
|
var pos = this._startPos.add(this._offset.multiplyBy(progress));
|
|
L.DomUtil.setPosition(this._el, pos);
|
|
this.fire('step');
|
|
},
|
|
|
|
_complete: function () {
|
|
L.Util.cancelAnimFrame(this._animId);
|
|
this.fire('end');
|
|
this._inProgress = false;
|
|
},
|
|
|
|
_easeOut: function (t) {
|
|
return t * (2 - t);
|
|
}
|
|
});
|
|
|
|
|
|
L.Map.mergeOptions({
|
|
zoomAnimation: L.DomUtil.TRANSITION && !L.Browser.android23 && !L.Browser.mobileOpera
|
|
});
|
|
|
|
if (L.DomUtil.TRANSITION) {
|
|
L.Map.addInitHook(function () {
|
|
L.DomEvent.on(this._mapPane, L.DomUtil.TRANSITION_END, this._catchTransitionEnd, this);
|
|
});
|
|
}
|
|
|
|
L.Map.include(!L.DomUtil.TRANSITION ? {} : {
|
|
|
|
_zoomToIfClose: function (center, zoom) {
|
|
|
|
if (this._animatingZoom) { return true; }
|
|
|
|
if (!this.options.zoomAnimation) { return false; }
|
|
|
|
var scale = this.getZoomScale(zoom),
|
|
offset = this._getCenterOffset(center).divideBy(1 - 1 / scale);
|
|
|
|
// if offset does not exceed half of the view
|
|
if (!this._offsetIsWithinView(offset, 1)) { return false; }
|
|
|
|
L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim');
|
|
|
|
this
|
|
.fire('movestart')
|
|
.fire('zoomstart');
|
|
|
|
this.fire('zoomanim', {
|
|
center: center,
|
|
zoom: zoom
|
|
});
|
|
|
|
var origin = this._getCenterLayerPoint().add(offset);
|
|
|
|
this._prepareTileBg();
|
|
this._runAnimation(center, zoom, scale, origin);
|
|
|
|
return true;
|
|
},
|
|
|
|
_catchTransitionEnd: function (e) {
|
|
if (this._animatingZoom) {
|
|
this._onZoomTransitionEnd();
|
|
}
|
|
},
|
|
|
|
_runAnimation: function (center, zoom, scale, origin, backwardsTransform) {
|
|
this._animateToCenter = center;
|
|
this._animateToZoom = zoom;
|
|
this._animatingZoom = true;
|
|
|
|
var transform = L.DomUtil.TRANSFORM,
|
|
tileBg = this._tileBg;
|
|
|
|
clearTimeout(this._clearTileBgTimer);
|
|
|
|
//dumb FireFox hack, I have no idea why this magic zero translate fixes the scale transition problem
|
|
if (L.Browser.gecko || window.opera) {
|
|
tileBg.style[transform] += ' translate(0,0)';
|
|
}
|
|
|
|
L.Util.falseFn(tileBg.offsetWidth); //hack to make sure transform is updated before running animation
|
|
|
|
var scaleStr = L.DomUtil.getScaleString(scale, origin),
|
|
oldTransform = tileBg.style[transform];
|
|
|
|
tileBg.style[transform] = backwardsTransform ?
|
|
oldTransform + ' ' + scaleStr :
|
|
scaleStr + ' ' + oldTransform;
|
|
},
|
|
|
|
_prepareTileBg: function () {
|
|
var tilePane = this._tilePane,
|
|
tileBg = this._tileBg;
|
|
|
|
// If foreground layer doesn't have many tiles but bg layer does, keep the existing bg layer and just zoom it some more
|
|
if (tileBg &&
|
|
this._getLoadedTilesPercentage(tileBg) > 0.5 &&
|
|
this._getLoadedTilesPercentage(tilePane) < 0.5) {
|
|
|
|
tilePane.style.visibility = 'hidden';
|
|
tilePane.empty = true;
|
|
this._stopLoadingImages(tilePane);
|
|
return;
|
|
}
|
|
|
|
if (!tileBg) {
|
|
tileBg = this._tileBg = this._createPane('leaflet-tile-pane', this._mapPane);
|
|
tileBg.style.zIndex = 1;
|
|
}
|
|
|
|
// prepare the background pane to become the main tile pane
|
|
tileBg.style[L.DomUtil.TRANSFORM] = '';
|
|
tileBg.style.visibility = 'hidden';
|
|
|
|
// tells tile layers to reinitialize their containers
|
|
tileBg.empty = true; //new FG
|
|
tilePane.empty = false; //new BG
|
|
|
|
//Switch out the current layer to be the new bg layer (And vice-versa)
|
|
this._tilePane = this._panes.tilePane = tileBg;
|
|
var newTileBg = this._tileBg = tilePane;
|
|
|
|
L.DomUtil.addClass(newTileBg, 'leaflet-zoom-animated');
|
|
|
|
this._stopLoadingImages(newTileBg);
|
|
},
|
|
|
|
_getLoadedTilesPercentage: function (container) {
|
|
var tiles = container.getElementsByTagName('img'),
|
|
i, len, count = 0;
|
|
|
|
for (i = 0, len = tiles.length; i < len; i++) {
|
|
if (tiles[i].complete) {
|
|
count++;
|
|
}
|
|
}
|
|
return count / len;
|
|
},
|
|
|
|
// stops loading all tiles in the background layer
|
|
_stopLoadingImages: function (container) {
|
|
var tiles = Array.prototype.slice.call(container.getElementsByTagName('img')),
|
|
i, len, tile;
|
|
|
|
for (i = 0, len = tiles.length; i < len; i++) {
|
|
tile = tiles[i];
|
|
|
|
if (!tile.complete) {
|
|
tile.onload = L.Util.falseFn;
|
|
tile.onerror = L.Util.falseFn;
|
|
tile.src = L.Util.emptyImageUrl;
|
|
|
|
tile.parentNode.removeChild(tile);
|
|
}
|
|
}
|
|
},
|
|
|
|
_onZoomTransitionEnd: function () {
|
|
this._restoreTileFront();
|
|
L.Util.falseFn(this._tileBg.offsetWidth); // force reflow
|
|
this._resetView(this._animateToCenter, this._animateToZoom, true, true);
|
|
|
|
L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim');
|
|
this._animatingZoom = false;
|
|
},
|
|
|
|
_restoreTileFront: function () {
|
|
this._tilePane.innerHTML = '';
|
|
this._tilePane.style.visibility = '';
|
|
this._tilePane.style.zIndex = 2;
|
|
this._tileBg.style.zIndex = 1;
|
|
},
|
|
|
|
_clearTileBg: function () {
|
|
if (!this._animatingZoom && !this.touchZoom._zooming) {
|
|
this._tileBg.innerHTML = '';
|
|
}
|
|
}
|
|
});
|
|
|
|
|
|
/*
|
|
* Provides L.Map with convenient shortcuts for W3C geolocation.
|
|
*/
|
|
|
|
L.Map.include({
|
|
_defaultLocateOptions: {
|
|
watch: false,
|
|
setView: false,
|
|
maxZoom: Infinity,
|
|
timeout: 10000,
|
|
maximumAge: 0,
|
|
enableHighAccuracy: false
|
|
},
|
|
|
|
locate: function (/*Object*/ options) {
|
|
|
|
options = this._locationOptions = L.Util.extend(this._defaultLocateOptions, options);
|
|
|
|
if (!navigator.geolocation) {
|
|
this._handleGeolocationError({
|
|
code: 0,
|
|
message: "Geolocation not supported."
|
|
});
|
|
return this;
|
|
}
|
|
|
|
var onResponse = L.Util.bind(this._handleGeolocationResponse, this),
|
|
onError = L.Util.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);
|
|
}
|
|
return this;
|
|
},
|
|
|
|
_handleGeolocationError: function (error) {
|
|
var c = error.code,
|
|
message = error.message ||
|
|
(c === 1 ? "permission denied" :
|
|
(c === 2 ? "position unavailable" : "timeout"));
|
|
|
|
if (this._locationOptions.setView && !this._loaded) {
|
|
this.fitWorld();
|
|
}
|
|
|
|
this.fire('locationerror', {
|
|
code: c,
|
|
message: "Geolocation error: " + message + "."
|
|
});
|
|
},
|
|
|
|
_handleGeolocationResponse: function (pos) {
|
|
var latAccuracy = 180 * pos.coords.accuracy / 4e7,
|
|
lngAccuracy = latAccuracy * 2,
|
|
|
|
lat = pos.coords.latitude,
|
|
lng = pos.coords.longitude,
|
|
latlng = new L.LatLng(lat, lng),
|
|
|
|
sw = new L.LatLng(lat - latAccuracy, lng - lngAccuracy),
|
|
ne = new L.LatLng(lat + latAccuracy, lng + lngAccuracy),
|
|
bounds = new L.LatLngBounds(sw, ne),
|
|
|
|
options = this._locationOptions;
|
|
|
|
if (options.setView) {
|
|
var zoom = Math.min(this.getBoundsZoom(bounds), options.maxZoom);
|
|
this.setView(latlng, zoom);
|
|
}
|
|
|
|
this.fire('locationfound', {
|
|
latlng: latlng,
|
|
bounds: bounds,
|
|
accuracy: pos.coords.accuracy
|
|
});
|
|
}
|
|
});
|
|
|
|
|
|
|
|
|
|
}(this)); |