--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hdalab/lib/leaflet/leaflet-src.js Mon Feb 06 18:50:19 2012 +0100
@@ -0,0 +1,5637 @@
+/*
+ Copyright (c) 2010-2011, CloudMade, Vladimir Agafonkin
+ Leaflet is a modern open-source JavaScript library for interactive maps.
+ http://leaflet.cloudmade.com
+*/
+
+(function (root) {
+ root.L = {
+ VERSION: '0.3',
+
+ ROOT_URL: root.L_ROOT_URL || (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) {
+ if (matches[1] === 'include') {
+ return '../../dist/';
+ }
+ return src.replace(leafletRe, '') + '/';
+ }
+ }
+ return '';
+ }()),
+
+ noConflict: function () {
+ root.L = this._originalL;
+ return this;
+ },
+
+ _originalL: root.L
+ };
+}(this));
+
+
+/*
+ * L.Util is a namespace for various utility functions.
+ */
+
+L.Util = {
+ extend: function (/*Object*/ dest) /*-> Object*/ { // merge src properties into dest
+ var sources = Array.prototype.slice.call(arguments, 1);
+ for (var j = 0, len = sources.length, src; j < len; j++) {
+ src = sources[j] || {};
+ for (var i in src) {
+ if (src.hasOwnProperty(i)) {
+ dest[i] = src[i];
+ }
+ }
+ }
+ return dest;
+ },
+
+ bind: function (/*Function*/ fn, /*Object*/ obj) /*-> Object*/ {
+ return function () {
+ return fn.apply(obj, arguments);
+ };
+ },
+
+ stamp: (function () {
+ var lastId = 0, key = '_leaflet_id';
+ return function (/*Object*/ obj) {
+ obj[key] = obj[key] || ++lastId;
+ return obj[key];
+ };
+ }()),
+
+ requestAnimFrame: (function () {
+ function timeoutDefer(callback) {
+ window.setTimeout(callback, 1000 / 60);
+ }
+
+ var requestFn = window.requestAnimationFrame ||
+ window.webkitRequestAnimationFrame ||
+ window.mozRequestAnimationFrame ||
+ window.oRequestAnimationFrame ||
+ window.msRequestAnimationFrame ||
+ timeoutDefer;
+
+ return function (callback, context, immediate, contextEl) {
+ callback = context ? L.Util.bind(callback, context) : callback;
+ if (immediate && requestFn === timeoutDefer) {
+ callback();
+ } else {
+ requestFn(callback, contextEl);
+ }
+ };
+ }()),
+
+ limitExecByInterval: function (fn, time, context) {
+ var lock, execOnUnlock, args;
+ function exec() {
+ lock = false;
+ if (execOnUnlock) {
+ args.callee.apply(context, args);
+ execOnUnlock = false;
+ }
+ }
+ return function () {
+ args = arguments;
+ if (!lock) {
+ lock = true;
+ setTimeout(exec, time);
+ fn.apply(context, args);
+ } else {
+ execOnUnlock = true;
+ }
+ };
+ },
+
+ falseFn: function () {
+ return false;
+ },
+
+ formatNum: function (num, digits) {
+ var pow = Math.pow(10, digits || 5);
+ return Math.round(num * pow) / pow;
+ },
+
+ setOptions: function (obj, options) {
+ obj.options = L.Util.extend({}, obj.options, options);
+ },
+
+ getParamString: function (obj) {
+ var params = [];
+ for (var i in obj) {
+ if (obj.hasOwnProperty(i)) {
+ params.push(i + '=' + obj[i]);
+ }
+ }
+ return '?' + params.join('&');
+ },
+
+ template: function (str, data) {
+ return str.replace(/\{ *([\w_]+) *\}/g, function (str, key) {
+ var value = data[key];
+ if (!data.hasOwnProperty(key)) {
+ throw new Error('No value provided for variable ' + str);
+ }
+ return value;
+ });
+ }
+};
+
+
+/*
+ * Class powers the OOP facilities of the library. Thanks to John Resig and Dean Edwards for inspiration!
+ */
+
+L.Class = function () {};
+
+L.Class.extend = function (/*Object*/ props) /*-> Class*/ {
+
+ // extended class with the new prototype
+ var NewClass = function () {
+ if (this.initialize) {
+ this.initialize.apply(this, arguments);
+ }
+ };
+
+ // instantiate class without calling constructor
+ var F = function () {};
+ F.prototype = this.prototype;
+ var proto = new F();
+
+ proto.constructor = NewClass;
+ NewClass.prototype = proto;
+
+ // add superclass access
+ NewClass.superclass = this.prototype;
+
+ // add class name
+ //proto.className = props;
+
+ //inherit parent's statics
+ for (var i in this) {
+ if (this.hasOwnProperty(i) && i !== 'prototype' && i !== 'superclass') {
+ NewClass[i] = this[i];
+ }
+ }
+
+ // mix static properties into the class
+ if (props.statics) {
+ L.Util.extend(NewClass, props.statics);
+ delete props.statics;
+ }
+
+ // mix includes into the prototype
+ if (props.includes) {
+ L.Util.extend.apply(null, [proto].concat(props.includes));
+ delete props.includes;
+ }
+
+ // merge options
+ if (props.options && proto.options) {
+ props.options = L.Util.extend({}, proto.options, props.options);
+ }
+
+ // mix given properties into the prototype
+ L.Util.extend(proto, props);
+
+ // allow inheriting further
+ NewClass.extend = L.Class.extend;
+
+ // method for adding properties to prototype
+ NewClass.include = function (props) {
+ L.Util.extend(this.prototype, props);
+ };
+
+ return NewClass;
+};
+
+
+/*
+ * L.Mixin.Events adds custom events functionality to Leaflet classes
+ */
+
+L.Mixin = {};
+
+L.Mixin.Events = {
+ addEventListener: function (/*String*/ type, /*Function*/ fn, /*(optional) Object*/ context) {
+ var events = this._leaflet_events = this._leaflet_events || {};
+ events[type] = events[type] || [];
+ events[type].push({
+ action: fn,
+ context: context || this
+ });
+ return this;
+ },
+
+ hasEventListeners: function (/*String*/ type) /*-> Boolean*/ {
+ var k = '_leaflet_events';
+ return (k in this) && (type in this[k]) && (this[k][type].length > 0);
+ },
+
+ removeEventListener: function (/*String*/ type, /*Function*/ fn, /*(optional) Object*/ context) {
+ if (!this.hasEventListeners(type)) {
+ return this;
+ }
+
+ for (var i = 0, events = this._leaflet_events, len = events[type].length; i < len; i++) {
+ if (
+ (events[type][i].action === fn) &&
+ (!context || (events[type][i].context === context))
+ ) {
+ events[type].splice(i, 1);
+ return this;
+ }
+ }
+ return this;
+ },
+
+ fireEvent: function (/*String*/ type, /*(optional) Object*/ data) {
+ if (!this.hasEventListeners(type)) {
+ return this;
+ }
+
+ var event = L.Util.extend({
+ type: type,
+ target: this
+ }, data);
+
+ var listeners = this._leaflet_events[type].slice();
+
+ for (var i = 0, len = listeners.length; i < len; i++) {
+ listeners[i].action.call(listeners[i].context || this, event);
+ }
+
+ return this;
+ }
+};
+
+L.Mixin.Events.on = L.Mixin.Events.addEventListener;
+L.Mixin.Events.off = L.Mixin.Events.removeEventListener;
+L.Mixin.Events.fire = L.Mixin.Events.fireEvent;
+
+
+(function () {
+ var ua = navigator.userAgent.toLowerCase(),
+ ie = !!window.ActiveXObject,
+ webkit = ua.indexOf("webkit") !== -1,
+ mobile = typeof orientation !== 'undefined' ? true : false,
+ android = ua.indexOf("android") !== -1,
+ opera = window.opera;
+
+ L.Browser = {
+ ie: ie,
+ ie6: ie && !window.XMLHttpRequest,
+
+ webkit: webkit,
+ webkit3d: webkit && ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()),
+
+ gecko: ua.indexOf("gecko") !== -1,
+
+ opera: opera,
+
+ android: android,
+ mobileWebkit: mobile && webkit,
+ mobileOpera: mobile && opera,
+
+ mobile: mobile,
+ touch: (function () {
+ var touchSupported = false,
+ startName = 'ontouchstart';
+
+ // WebKit, etc
+ if (startName in document.documentElement) {
+ return true;
+ }
+
+ // Firefox/Gecko
+ var e = document.createElement('div');
+
+ // If no support for basic event stuff, unlikely to have touch support
+ if (!e.setAttribute || !e.removeAttribute) {
+ return false;
+ }
+
+ e.setAttribute(startName, 'return;');
+ if (typeof e[startName] === 'function') {
+ touchSupported = true;
+ }
+
+ e.removeAttribute(startName);
+ e = null;
+
+ return touchSupported;
+ }())
+ };
+}());
+
+
+/*
+ * L.Point represents a point with x and y coordinates.
+ */
+
+L.Point = function (/*Number*/ x, /*Number*/ y, /*Boolean*/ round) {
+ this.x = (round ? Math.round(x) : x);
+ this.y = (round ? Math.round(y) : y);
+};
+
+L.Point.prototype = {
+ add: function (point) {
+ return this.clone()._add(point);
+ },
+
+ _add: function (point) {
+ this.x += point.x;
+ this.y += point.y;
+ return this;
+ },
+
+ subtract: function (point) {
+ return this.clone()._subtract(point);
+ },
+
+ // destructive subtract (faster)
+ _subtract: function (point) {
+ this.x -= point.x;
+ this.y -= point.y;
+ return this;
+ },
+
+ divideBy: function (num, round) {
+ return new L.Point(this.x / num, this.y / num, round);
+ },
+
+ multiplyBy: function (num) {
+ return new L.Point(this.x * num, this.y * num);
+ },
+
+ distanceTo: function (point) {
+ var x = point.x - this.x,
+ y = point.y - this.y;
+ return Math.sqrt(x * x + y * y);
+ },
+
+ round: function () {
+ return this.clone()._round();
+ },
+
+ // destructive round
+ _round: function () {
+ this.x = Math.round(this.x);
+ this.y = Math.round(this.y);
+ return this;
+ },
+
+ clone: function () {
+ return new L.Point(this.x, this.y);
+ },
+
+ toString: function () {
+ return 'Point(' +
+ L.Util.formatNum(this.x) + ', ' +
+ L.Util.formatNum(this.y) + ')';
+ }
+};
+
+
+/*
+ * L.Bounds represents a rectangular area on the screen in pixel coordinates.
+ */
+
+L.Bounds = L.Class.extend({
+ initialize: function (min, max) { //(Point, Point) or Point[]
+ if (!min) {
+ return;
+ }
+ var points = (min instanceof Array ? min : [min, max]);
+ for (var i = 0, len = points.length; i < len; i++) {
+ this.extend(points[i]);
+ }
+ },
+
+ // extend the bounds to contain the given point
+ extend: function (/*Point*/ point) {
+ if (!this.min && !this.max) {
+ this.min = new L.Point(point.x, point.y);
+ this.max = new L.Point(point.x, point.y);
+ } else {
+ this.min.x = Math.min(point.x, this.min.x);
+ this.max.x = Math.max(point.x, this.max.x);
+ this.min.y = Math.min(point.y, this.min.y);
+ this.max.y = Math.max(point.y, this.max.y);
+ }
+ },
+
+ getCenter: function (round)/*->Point*/ {
+ return new L.Point(
+ (this.min.x + this.max.x) / 2,
+ (this.min.y + this.max.y) / 2, round);
+ },
+
+ contains: function (/*Bounds or Point*/ obj)/*->Boolean*/ {
+ var min, max;
+
+ if (obj instanceof L.Bounds) {
+ min = obj.min;
+ max = obj.max;
+ } else {
+ min = max = obj;
+ }
+
+ return (min.x >= this.min.x) &&
+ (max.x <= this.max.x) &&
+ (min.y >= this.min.y) &&
+ (max.y <= this.max.y);
+ },
+
+ intersects: function (/*Bounds*/ bounds) {
+ var min = this.min,
+ max = this.max,
+ min2 = bounds.min,
+ max2 = bounds.max;
+
+ var xIntersects = (max2.x >= min.x) && (min2.x <= max.x),
+ yIntersects = (max2.y >= min.y) && (min2.y <= max.y);
+
+ return xIntersects && yIntersects;
+ }
+
+});
+
+
+/*
+ * 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;
+ }
+ 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) {
+ el.className = el.className.replace(/(\S+)\s*/g, function (w, match) {
+ if (match === name) {
+ return '';
+ }
+ return w;
+ }).replace(/^\s+/, '');
+ },
+
+ setOpacity: function (el, value) {
+ if (L.Browser.ie) {
+ el.style.filter = 'alpha(opacity=' + Math.round(value * 100) + ')';
+ } else {
+ el.style.opacity = value;
+ }
+ },
+
+ //TODO refactor away this ugly translate/position mess
+
+ 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) {
+ return L.DomUtil.TRANSLATE_OPEN +
+ point.x + 'px,' + point.y + 'px' +
+ L.DomUtil.TRANSLATE_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) {
+ el._leaflet_pos = point;
+ if (L.Browser.webkit) {
+ el.style[L.DomUtil.TRANSFORM] = L.DomUtil.getTranslateString(point);
+ } 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(['transformProperty', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']),
+
+ TRANSLATE_OPEN: 'translate' + (L.Browser.webkit3d ? '3d(' : '('),
+ TRANSLATE_CLOSE: L.Browser.webkit3d ? ',0)' : ')'
+});
+
+
+/*
+ CM.LatLng represents a geographical point with latitude and longtitude coordinates.
+*/
+
+L.LatLng = function (/*Number*/ rawLat, /*Number*/ rawLng, /*Boolean*/ noWrap) {
+ 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
+ }
+
+ //TODO change to lat() & lng()
+ 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 (/*LatLng*/ obj) {
+ if (!(obj instanceof L.LatLng)) {
+ return false;
+ }
+
+ var margin = Math.max(Math.abs(this.lat - obj.lat), Math.abs(this.lng - obj.lng));
+ return margin <= L.LatLng.MAX_MARGIN;
+ },
+
+ toString: function () {
+ 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 (/*LatLng*/ other)/*->Double*/ {
+ 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.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 = (southWest instanceof Array ? southWest : [southWest, northEast]);
+ for (var i = 0, len = latlngs.length; i < len; i++) {
+ this.extend(latlngs[i]);
+ }
+ },
+
+ // extend the bounds to contain the given point
+ extend: function (/*LatLng*/ latlng) {
+ if (!this._southWest && !this._northEast) {
+ this._southWest = new L.LatLng(latlng.lat, latlng.lng, true);
+ this._northEast = new L.LatLng(latlng.lat, latlng.lng, true);
+ } else {
+ this._southWest.lat = Math.min(latlng.lat, this._southWest.lat);
+ this._southWest.lng = Math.min(latlng.lng, this._southWest.lng);
+ this._northEast.lat = Math.max(latlng.lat, this._northEast.lat);
+ this._northEast.lng = Math.max(latlng.lng, this._northEast.lng);
+ }
+ },
+
+ 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 (/*LatLngBounds or LatLng*/ obj) /*-> Boolean*/ {
+ 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 (/*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(',');
+ }
+});
+
+//TODO International date line?
+
+
+/*
+ * 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*/ unbounded) /*-> LatLng*/ {
+ var d = L.LatLng.RAD_TO_DEG,
+ lng = point.x * d,
+ lat = (2 * Math.atan(Math.exp(point.y)) - (Math.PI / 2)) * d;
+
+ return new L.LatLng(lat, lng, unbounded);
+ }
+};
+
+
+
+L.Projection.LonLat = {
+ project: function (latlng) {
+ return new L.Point(latlng.lng, latlng.lat);
+ },
+
+ unproject: function (point, unbounded) {
+ return new L.LatLng(point.y, point.x, unbounded);
+ }
+};
+
+
+
+L.CRS = {
+ latLngToPoint: function (/*LatLng*/ latlng, /*Number*/ scale)/*-> Point*/ {
+ var projectedPoint = this.projection.project(latlng);
+ return this.transformation._transform(projectedPoint, scale);
+ },
+
+ pointToLatLng: function (/*Point*/ point, /*Number*/ scale, /*(optional) Boolean*/ unbounded)/*-> LatLng*/ {
+ var untransformedPoint = this.transformation.untransform(point, scale);
+ return this.projection.unproject(untransformedPoint, unbounded);
+ //TODO get rid of 'unbounded' everywhere
+ },
+
+ project: function (latlng) {
+ return this.projection.project(latlng);
+ }
+};
+
+
+
+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: {
+ // projection
+ crs: L.CRS.EPSG3857 || L.CRS.EPSG4326,
+ scale: function (zoom) {
+ return 256 * Math.pow(2, zoom);
+ },
+
+ // state
+ center: null,
+ zoom: null,
+ layers: [],
+
+ // interaction
+ dragging: true,
+ touchZoom: L.Browser.touch && !L.Browser.android,
+ scrollWheelZoom: !L.Browser.touch,
+ doubleClickZoom: true,
+ boxZoom: true,
+
+ // controls
+ zoomControl: true,
+ attributionControl: true,
+
+ // animation
+ fadeAnimation: L.DomUtil.TRANSITION && !L.Browser.android,
+ zoomAnimation: L.DomUtil.TRANSITION && !L.Browser.android && !L.Browser.mobileOpera,
+
+ // misc
+ trackResize: true,
+ closePopupOnClick: true,
+ worldCopyJump: true
+ },
+
+
+ // constructor
+
+ initialize: function (id, options) { // (HTMLElement or String, Object)
+ L.Util.setOptions(this, options);
+
+ this._container = L.DomUtil.get(id);
+
+ if (this._container._leaflet) {
+ throw new Error("Map container is already initialized.");
+ }
+ this._container._leaflet = true;
+
+ this._initLayout();
+
+ if (L.DomEvent) {
+ this._initEvents();
+ if (L.Handler) {
+ this._initInteraction();
+ }
+ if (L.Control) {
+ this._initControls();
+ }
+ }
+
+ if (this.options.maxBounds) {
+ this.setMaxBounds(this.options.maxBounds);
+ }
+
+ var center = this.options.center,
+ zoom = this.options.zoom;
+
+ if (center !== null && zoom !== null) {
+ this.setView(center, zoom, true);
+ }
+
+ var layers = this.options.layers;
+ layers = (layers instanceof Array ? layers : [layers]);
+ this._tileLayersNum = 0;
+ this._initLayers(layers);
+ },
+
+
+ // public methods that modify map state
+
+ // replaced by animation-powered implementation in Map.PanAnimation.js
+ setView: function (center, zoom) {
+ // reset the map view
+ this._resetView(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(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(offset);
+
+ this.fire('move');
+ this.fire('moveend');
+
+ return this;
+ },
+
+ setMaxBounds: function (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) {
+ 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, insertAtTheTop) {
+ var id = L.Util.stamp(layer);
+
+ if (this._layers[id]) {
+ return this;
+ }
+
+ this._layers[id] = layer;
+
+ 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 getMaxZoom, getMinZoom in ILayer (instead of options)
+
+ if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) {
+ this._tileLayersNum++;
+ layer.on('load', this._onTileLayerLoad, this);
+ }
+ if (this.attributionControl && layer.getAttribution) {
+ this.attributionControl.addAttribution(layer.getAttribution());
+ }
+
+ var onMapLoad = function () {
+ layer.onAdd(this, insertAtTheTop);
+ 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]) {
+ layer.onRemove(this);
+ delete this._layers[id];
+
+ if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) {
+ this._tileLayersNum--;
+ layer.off('load', this._onTileLayerLoad, this);
+ }
+ if (this.attributionControl && layer.getAttribution) {
+ this.attributionControl.removeAttribution(layer.getAttribution());
+ }
+
+ this.fire('layerremove', {layer: layer});
+ }
+ return this;
+ },
+
+ hasLayer: function (layer) {
+ var id = L.Util.stamp(layer);
+ return this._layers.hasOwnProperty(id);
+ },
+
+ invalidateSize: function () {
+ var oldSize = this.getSize();
+
+ this._sizeChanged = true;
+
+ if (this.options.maxBounds) {
+ this.setMaxBounds(this.options.maxBounds);
+ }
+
+ if (!this._loaded) {
+ return this;
+ }
+
+ this._rawPanBy(oldSize.subtract(this.getSize()).divideBy(2, true));
+
+ this.fire('move');
+
+ clearTimeout(this._sizeTimer);
+ this._sizeTimer = setTimeout(L.Util.bind(function () {
+ this.fire('moveend');
+ }, this), 200);
+
+ return this;
+ },
+
+
+ // public methods for getting map state
+
+ getCenter: function (unbounded) { // (Boolean)
+ var viewHalf = this.getSize().divideBy(2),
+ centerPoint = this._getTopLeftPoint().add(viewHalf);
+ return this.unproject(centerPoint, this._zoom, unbounded);
+ },
+
+ getZoom: function () {
+ return this._zoom;
+ },
+
+ getBounds: function () {
+ var bounds = this.getPixelBounds(),
+ sw = this.unproject(new L.Point(bounds.min.x, bounds.max.y), this._zoom, true),
+ ne = this.unproject(new L.Point(bounds.max.x, bounds.min.y), this._zoom, true);
+ 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 = isNaN(this.options.maxZoom) ? Infinity : this.options.maxZoom,
+ z2 = this._layersMaxZoom || Infinity;
+
+ return Math.min(z1, z2);
+ },
+
+ getBoundsZoom: function (bounds, inside) { // (LatLngBounds)
+ 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(nePoint.x - swPoint.x, 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(),
+ size = this.getSize();
+ return new L.Bounds(topLeftPoint, topLeftPoint.add(size));
+ },
+
+ getPixelOrigin: function () {
+ return this._initialTopLeftPoint;
+ },
+
+ getPanes: function () {
+ return this._panes;
+ },
+
+
+ // conversion methods
+
+ 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));
+ },
+
+ containerPointToLayerPoint: function (point) { // (Point)
+ return point.subtract(L.DomUtil.getPosition(this._mapPane));
+ },
+
+ layerPointToContainerPoint: function (point) { // (Point)
+ return point.add(L.DomUtil.getPosition(this._mapPane));
+ },
+
+ layerPointToLatLng: function (point) { // (Point)
+ return this.unproject(point.add(this._initialTopLeftPoint));
+ },
+
+ latLngToLayerPoint: function (latlng) { // (LatLng)
+ return this.project(latlng)._round()._subtract(this._initialTopLeftPoint);
+ },
+
+ project: function (latlng, zoom) { // (LatLng[, Number]) -> Point
+ zoom = (typeof zoom === 'undefined' ? this._zoom : zoom);
+ return this.options.crs.latLngToPoint(latlng, this.options.scale(zoom));
+ },
+
+ unproject: function (point, zoom, unbounded) { // (Point[, Number, Boolean]) -> LatLng
+ zoom = (typeof zoom === 'undefined' ? this._zoom : zoom);
+ return this.options.crs.pointToLatLng(point, this.options.scale(zoom), unbounded);
+ },
+
+
+ // private methods that modify map state
+
+ _initLayout: function () {
+ var container = this._container;
+
+ container.innerHTML = '';
+
+ container.className += ' leaflet-container';
+
+ if (this.options.fadeAnimation) {
+ container.className += ' leaflet-fade-anim';
+ }
+
+ var position = L.DomUtil.getStyle(container, 'position');
+ if (position !== 'absolute' && position !== 'relative') {
+ 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');
+ },
+
+ _createPane: function (className, container) {
+ return L.DomUtil.create('div', className, container || this._objectsPane);
+ },
+
+ _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 {
+ var offset = L.DomUtil.getPosition(this._mapPane);
+ this._initialTopLeftPoint._add(offset);
+ }
+
+ this._tileLayersToLoad = this._tileLayersNum;
+ this.fire('viewreset', {hard: !preserveMapOffset});
+
+ this.fire('move');
+ if (zoomChanged || afterZoomAnim) {
+ this.fire('zoomend');
+ }
+ this.fire('moveend');
+
+ if (!this._loaded) {
+ this._loaded = true;
+ this.fire('load');
+ }
+ },
+
+ _initLayers: function (layers) {
+ this._layers = {};
+
+ var i, len;
+
+ for (i = 0, len = layers.length; i < len; i++) {
+ this.addLayer(layers[i]);
+ }
+ },
+
+ _initControls: function () {
+ if (this.options.zoomControl) {
+ this.addControl(new L.Control.Zoom());
+ }
+ if (this.options.attributionControl) {
+ this.attributionControl = new L.Control.Attribution();
+ this.addControl(this.attributionControl);
+ }
+ },
+
+ _rawPanBy: function (offset) {
+ var mapPaneOffset = L.DomUtil.getPosition(this._mapPane);
+ L.DomUtil.setPosition(this._mapPane, mapPaneOffset.subtract(offset));
+ },
+
+
+ // map events
+
+ _initEvents: function () {
+ L.DomEvent.addListener(this._container, 'click', this._onMouseClick, this);
+
+ var events = ['dblclick', 'mousedown', 'mouseenter', 'mouseleave', 'mousemove', 'contextmenu'];
+
+ var i, len;
+
+ for (i = 0, len = events.length; i < len; i++) {
+ L.DomEvent.addListener(this._container, events[i], this._fireMouseEvent, this);
+ }
+
+ if (this.options.trackResize) {
+ L.DomEvent.addListener(window, 'resize', this._onResize, this);
+ }
+ },
+
+ _onResize: function () {
+ L.Util.requestAnimFrame(this.invalidateSize, this, false, this._container);
+ },
+
+ _onMouseClick: function (e) {
+ if (!this._loaded || (this.dragging && this.dragging.moved())) {
+ return;
+ }
+
+ this.fire('pre' + e.type);
+ 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);
+ }
+
+ this.fire(type, {
+ latlng: this.mouseEventToLatLng(e),
+ layerPoint: this.mouseEventToLayerPoint(e)
+ });
+ },
+
+ _initInteraction: function () {
+ var handlers = {
+ dragging: L.Map.Drag,
+ touchZoom: L.Map.TouchZoom,
+ doubleClickZoom: L.Map.DoubleClickZoom,
+ scrollWheelZoom: L.Map.ScrollWheelZoom,
+ boxZoom: L.Map.BoxZoom
+ };
+
+ var i;
+ for (i in handlers) {
+ if (handlers.hasOwnProperty(i) && handlers[i]) {
+ this[i] = new handlers[i](this);
+ if (this.options[i]) {
+ this[i].enable();
+ }
+ // TODO move enabling to handler contructor
+ }
+ }
+ },
+
+ _onTileLayerLoad: function () {
+ // 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
+
+ _getTopLeftPoint: function () {
+ if (!this._loaded) {
+ throw new Error('Set map center and zoom first.');
+ }
+
+ var offset = L.DomUtil.getPosition(this._mapPane);
+ return this._initialTopLeftPoint.subtract(offset);
+ },
+
+ _getNewTopLeftPoint: function (center) {
+ var viewHalf = this.getSize().divideBy(2);
+ return this.project(center).subtract(viewHalf).round();
+ },
+
+ _limitZoom: function (zoom) {
+ var min = this.getMinZoom();
+ var max = this.getMaxZoom();
+ return Math.max(min, Math.min(max, zoom));
+ }
+});
+
+
+
+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*/ unbounded) /*-> 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, unbounded);
+ }
+};
+
+
+
+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: '',
+ opacity: 1,
+ scheme: 'xyz',
+ continuousWorld: false,
+ noWrap: false,
+ zoomOffset: 0,
+ zoomReverse: false,
+
+ unloadInvisibleTiles: L.Browser.mobile,
+ updateWhenIdle: L.Browser.mobile
+ },
+
+ initialize: function (url, options, urlParams) {
+ L.Util.setOptions(this, options);
+
+ this._url = url;
+ this._urlParams = urlParams;
+
+ if (typeof this.options.subdomains === 'string') {
+ this.options.subdomains = this.options.subdomains.split('');
+ }
+ },
+
+ onAdd: function (map, insertAtTheBottom) {
+ this._map = map;
+ this._insertAtTheBottom = insertAtTheBottom;
+
+ // 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, this);
+
+ if (this.options.updateWhenIdle) {
+ map.on('moveend', this._update, this);
+ } else {
+ this._limitedUpdate = L.Util.limitExecByInterval(this._update, 150, this);
+ map.on('move', this._limitedUpdate, this);
+ }
+
+ this._reset();
+ this._update();
+ },
+
+ onRemove: function (map) {
+ this._map.getPanes().tilePane.removeChild(this._container);
+ this._container = null;
+
+ this._map.off('viewreset', this._resetCallback, this);
+
+ if (this.options.updateWhenIdle) {
+ this._map.off('moveend', this._update, this);
+ } else {
+ this._map.off('move', this._limitedUpdate, this);
+ }
+ },
+
+ getAttribution: function () {
+ return this.options.attribution;
+ },
+
+ setOpacity: function (opacity) {
+ this.options.opacity = opacity;
+
+ this._setOpacity(opacity);
+
+ // stupid webkit hack to force redrawing of tiles
+ if (L.Browser.webkit) {
+ for (var i in this._tiles) {
+ if (this._tiles.hasOwnProperty(i)) {
+ this._tiles[i].style.webkitTransform += ' translate(0,0)';
+ }
+ }
+ }
+ },
+
+ _setOpacity: function (opacity) {
+ if (opacity < 1) {
+ L.DomUtil.setOpacity(this._container, opacity);
+ }
+ },
+
+ _initContainer: function () {
+ var tilePane = this._map.getPanes().tilePane,
+ first = tilePane.firstChild;
+
+ if (!this._container || tilePane.empty) {
+ this._container = L.DomUtil.create('div', 'leaflet-layer');
+
+ if (this._insertAtTheBottom && first) {
+ tilePane.insertBefore(this._container, first);
+ } else {
+ tilePane.appendChild(this._container);
+ }
+
+ this._setOpacity(this.options.opacity);
+ }
+ },
+
+ _resetCallback: function (e) {
+ this._reset(e.hard);
+ },
+
+ _reset: function (clearOldContainer) {
+ var key;
+ for (key in this._tiles) {
+ if (this._tiles.hasOwnProperty(key)) {
+ this.fire("tileunload", {tile: this._tiles[key]});
+ }
+ }
+ this._tiles = {};
+
+ if (this.options.reuseTiles) {
+ this._unusedTiles = [];
+ }
+
+ if (clearOldContainer && this._container) {
+ this._container.innerHTML = "";
+ }
+ this._initContainer();
+ },
+
+ _update: function () {
+ var bounds = this._map.getPixelBounds(),
+ tileSize = this.options.tileSize;
+
+ 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();
+
+ for (var j = bounds.min.y; j <= bounds.max.y; j++) {
+ for (var i = bounds.min.x; i <= bounds.max.x; i++) {
+ if ((i + ':' + j) in this._tiles) {
+ continue;
+ }
+ queue.push(new L.Point(i, j));
+ }
+ }
+
+ // 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();
+
+ this._tilesToLoad = queue.length;
+ for (var k = 0, len = this._tilesToLoad; k < len; k++) {
+ this._addTile(queue[k], fragment);
+ }
+
+ this._container.appendChild(fragment);
+ },
+
+ _removeOtherTiles: function (bounds) {
+ var kArr, x, y, key, tile;
+
+ 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) {
+
+ tile = this._tiles[key];
+ this.fire("tileunload", {tile: tile, url: tile.src});
+
+ // evil, don't do this! crashes Android 3, produces load errors, doesn't solve memory leaks
+ // this._tiles[key].src = '';
+
+ if (tile.parentNode === this._container) {
+ this._container.removeChild(tile);
+ }
+ if (this.options.reuseTiles) {
+ this._unusedTiles.push(this._tiles[key]);
+ }
+ delete this._tiles[key];
+ }
+ }
+ }
+ },
+
+ _addTile: function (tilePoint, container) {
+ var tilePos = this._getTilePos(tilePoint),
+ zoom = this._map.getZoom(),
+ key = tilePoint.x + ':' + tilePoint.y,
+ tileLimit = Math.pow(2, this._getOffsetZoom(zoom));
+
+ // wrap tile coordinates
+ if (!this.options.continuousWorld) {
+ if (!this.options.noWrap) {
+ tilePoint.x = ((tilePoint.x % tileLimit) + tileLimit) % tileLimit;
+ } else if (tilePoint.x < 0 || tilePoint.x >= tileLimit) {
+ this._tilesToLoad--;
+ return;
+ }
+
+ if (tilePoint.y < 0 || tilePoint.y >= tileLimit) {
+ this._tilesToLoad--;
+ return;
+ }
+ }
+
+ // get unused tile - or create a new tile
+ var tile = this._getTile();
+ L.DomUtil.setPosition(tile, tilePos);
+
+ this._tiles[key] = tile;
+
+ if (this.options.scheme === 'tms') {
+ tilePoint.y = tileLimit - tilePoint.y - 1;
+ }
+
+ this._loadTile(tile, tilePoint, zoom);
+
+ container.appendChild(tile);
+ },
+
+ _getOffsetZoom: function (zoom) {
+ zoom = this.options.zoomReverse ? this.options.maxZoom - zoom : zoom;
+ return zoom + this.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, zoom) {
+ var subdomains = this.options.subdomains,
+ s = this.options.subdomains[(tilePoint.x + tilePoint.y) % subdomains.length];
+
+ return L.Util.template(this._url, L.Util.extend({
+ s: s,
+ z: this._getOffsetZoom(zoom),
+ x: tilePoint.x,
+ y: tilePoint.y
+ }, this._urlParams));
+ },
+
+ _createTileProto: function () {
+ this._tileImg = L.DomUtil.create('img', 'leaflet-tile');
+ this._tileImg.galleryimg = 'no';
+
+ var tileSize = this.options.tileSize;
+ this._tileImg.style.width = tileSize + 'px';
+ this._tileImg.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, zoom) {
+ tile._layer = this;
+ tile.onload = this._tileOnLoad;
+ tile.onerror = this._tileOnError;
+ tile.src = this.getTileUrl(tilePoint, zoom);
+ },
+
+ _tileOnLoad: function (e) {
+ var layer = this._layer;
+
+ this.className += ' leaflet-tile-loaded';
+
+ layer.fire('tileload', {tile: this, url: this.src});
+
+ layer._tilesToLoad--;
+ if (!layer._tilesToLoad) {
+ layer.fire('load');
+ }
+ },
+
+ _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;
+ }
+ }
+});
+
+
+L.TileLayer.WMS = L.TileLayer.extend({
+ defaultWmsParams: {
+ service: 'WMS',
+ request: 'GetMap',
+ version: '1.1.1',
+ layers: '',
+ styles: '',
+ format: 'image/jpeg',
+ transparent: false
+ },
+
+ initialize: function (/*String*/ url, /*Object*/ options) {
+ this._url = url;
+
+ this.wmsParams = L.Util.extend({}, this.defaultWmsParams);
+ this.wmsParams.width = this.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)) {
+ this.wmsParams[i] = options[i];
+ }
+ }
+
+ 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 (/*Point*/ tilePoint, /*Number*/ zoom)/*-> String*/ {
+ var tileSize = this.options.tileSize,
+ nwPoint = tilePoint.multiplyBy(tileSize),
+ sePoint = nwPoint.add(new L.Point(tileSize, tileSize)),
+ nwMap = this._map.unproject(nwPoint, this._zoom, true),
+ seMap = this._map.unproject(sePoint, this._zoom, true),
+ nw = this._map.options.crs.project(nwMap),
+ se = this._map.options.crs.project(seMap),
+ bbox = [nw.x, se.y, se.x, nw.y].join(',');
+
+ return this._url + L.Util.getParamString(this.wmsParams) + "&bbox=" + bbox;
+ }
+});
+
+
+L.TileLayer.Canvas = L.TileLayer.extend({
+ options: {
+ async: false
+ },
+
+ initialize: function (options) {
+ L.Util.setOptions(this, options);
+ },
+
+ redraw: function () {
+ for (var i in this._tiles) {
+ var tile = this._tiles[i];
+ this._redrawTile(tile);
+ }
+ },
+
+ _redrawTile: function (tile) {
+ this.drawTile(tile, tile._tilePoint, tile._zoom);
+ },
+
+ _createTileProto: function () {
+ this._canvasProto = L.DomUtil.create('canvas', 'leaflet-tile');
+
+ var tileSize = this.options.tileSize;
+ this._canvasProto.width = tileSize;
+ this._canvasProto.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.ImageOverlay = L.Class.extend({
+ includes: L.Mixin.Events,
+
+ initialize: function (/*String*/ url, /*LatLngBounds*/ bounds) {
+ this._url = url;
+ this._bounds = bounds;
+ },
+
+ onAdd: function (map) {
+ this._map = map;
+
+ if (!this._image) {
+ this._initImage();
+ }
+
+ map.getPanes().overlayPane.appendChild(this._image);
+
+ map.on('viewreset', this._reset, this);
+ this._reset();
+ },
+
+ onRemove: function (map) {
+ map.getPanes().overlayPane.removeChild(this._image);
+ map.off('viewreset', this._reset, this);
+ },
+
+ _initImage: function () {
+ this._image = L.DomUtil.create('img', 'leaflet-image-layer');
+
+ this._image.style.visibility = 'hidden';
+ //TODO opacity option
+
+ //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
+ });
+ },
+
+ _reset: function () {
+ var topLeft = this._map.latLngToLayerPoint(this._bounds.getNorthWest()),
+ bottomRight = this._map.latLngToLayerPoint(this._bounds.getSouthEast()),
+ size = bottomRight.subtract(topLeft);
+
+ L.DomUtil.setPosition(this._image, topLeft);
+
+ this._image.style.width = size.x + 'px';
+ this._image.style.height = size.y + 'px';
+ },
+
+ _onImageLoad: function () {
+ this._image.style.visibility = '';
+ this.fire('load');
+ }
+});
+
+
+L.Icon = L.Class.extend({
+ iconUrl: L.ROOT_URL + 'images/marker.png',
+ shadowUrl: L.ROOT_URL + 'images/marker-shadow.png',
+
+ iconSize: new L.Point(25, 41),
+ shadowSize: new L.Point(41, 41),
+
+ iconAnchor: new L.Point(13, 41),
+ popupAnchor: new L.Point(0, -33),
+
+ initialize: function (iconUrl) {
+ if (iconUrl) {
+ this.iconUrl = iconUrl;
+ }
+ },
+
+ createIcon: function () {
+ return this._createIcon('icon');
+ },
+
+ createShadow: function () {
+ return this._createIcon('shadow');
+ },
+
+ _createIcon: function (name) {
+ var size = this[name + 'Size'],
+ src = this[name + 'Url'];
+ if (!src && name === 'shadow') {
+ return null;
+ }
+
+ var img;
+ if (!src) {
+ img = this._createDiv();
+ }
+ else {
+ img = this._createImg(src);
+ }
+
+ img.className = 'leaflet-marker-' + name;
+
+ img.style.marginLeft = (-this.iconAnchor.x) + 'px';
+ img.style.marginTop = (-this.iconAnchor.y) + 'px';
+
+ if (size) {
+ img.style.width = size.x + 'px';
+ img.style.height = size.y + 'px';
+ }
+
+ return img;
+ },
+
+ _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;
+ },
+
+ _createDiv: function () {
+ return document.createElement('div');
+ }
+});
+
+
+/*
+ * 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(),
+ title: '',
+ clickable: true,
+ draggable: false,
+ zIndexOffset: 0
+ },
+
+ initialize: function (latlng, options) {
+ L.Util.setOptions(this, options);
+ this._latlng = latlng;
+ },
+
+ onAdd: function (map) {
+ this._map = map;
+
+ this._initIcon();
+
+ map.on('viewreset', this._reset, this);
+ this._reset();
+ },
+
+ onRemove: function (map) {
+ this._removeIcon();
+
+ // TODO move to Marker.Popup.js
+ if (this.closePopup) {
+ this.closePopup();
+ }
+
+ this._map = null;
+
+ map.off('viewreset', this._reset, this);
+ },
+
+ getLatLng: function () {
+ return this._latlng;
+ },
+
+ setLatLng: function (latlng) {
+ this._latlng = latlng;
+ if (this._icon) {
+ this._reset();
+
+ if (this._popup) {
+ this._popup.setLatLng(this._latlng);
+ }
+ }
+ },
+
+ setIcon: function (icon) {
+ if (this._map) {
+ this._removeIcon();
+ }
+
+ this.options.icon = icon;
+
+ if (this._map) {
+ this._initIcon();
+ this._reset();
+ }
+ },
+
+ _initIcon: function () {
+ if (!this._icon) {
+ this._icon = this.options.icon.createIcon();
+
+ if (this.options.title) {
+ this._icon.title = this.options.title;
+ }
+
+ this._initInteraction();
+ }
+ if (!this._shadow) {
+ this._shadow = this.options.icon.createShadow();
+ }
+
+ this._map._panes.markerPane.appendChild(this._icon);
+ if (this._shadow) {
+ this._map._panes.shadowPane.appendChild(this._shadow);
+ }
+ },
+
+ _removeIcon: function () {
+ this._map._panes.markerPane.removeChild(this._icon);
+ if (this._shadow) {
+ this._map._panes.shadowPane.removeChild(this._shadow);
+ }
+ this._icon = this._shadow = null;
+ },
+
+ _reset: function () {
+ var pos = this._map.latLngToLayerPoint(this._latlng).round();
+
+ L.DomUtil.setPosition(this._icon, pos);
+ if (this._shadow) {
+ L.DomUtil.setPosition(this._shadow, pos);
+ }
+
+ this._icon.style.zIndex = pos.y + this.options.zIndexOffset;
+ },
+
+ _initInteraction: function () {
+ if (this.options.clickable) {
+ this._icon.className += ' leaflet-clickable';
+
+ L.DomEvent.addListener(this._icon, 'click', this._onMouseClick, this);
+
+ var events = ['dblclick', 'mousedown', 'mouseover', 'mouseout'];
+ for (var i = 0; i < events.length; i++) {
+ L.DomEvent.addListener(this._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; }
+ this.fire(e.type);
+ },
+
+ _fireMouseEvent: function (e) {
+ this.fire(e.type);
+ L.DomEvent.stopPropagation(e);
+ }
+});
+
+
+
+L.Popup = L.Class.extend({
+ includes: L.Mixin.Events,
+
+ options: {
+ minWidth: 50,
+ maxWidth: 300,
+ autoPan: true,
+ closeButton: true,
+ offset: new L.Point(0, 2),
+ 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();
+
+ this._container.style.opacity = '0';
+
+ this._map._panes.popupPane.appendChild(this._container);
+ this._map.on('viewreset', this._updatePosition, this);
+
+ if (this._map.options.closePopupOnClick) {
+ this._map.on('preclick', this._close, this);
+ }
+
+ this._update();
+
+ this._container.style.opacity = '1'; //TODO fix ugly opacity hack
+
+ this._opened = true;
+ },
+
+ onRemove: function (map) {
+ map._panes.popupPane.removeChild(this._container);
+ L.Util.falseFn(this._container.offsetWidth);
+
+ map.off('viewreset', this._updatePosition, this);
+ map.off('click', this._close, this);
+
+ this._container.style.opacity = '0';
+
+ this._opened = false;
+ },
+
+ setLatLng: function (latlng) {
+ this._latlng = latlng;
+ if (this._opened) {
+ this._update();
+ }
+ return this;
+ },
+
+ setContent: function (content) {
+ this._content = content;
+ if (this._opened) {
+ this._update();
+ }
+ return this;
+ },
+
+ _close: function () {
+ if (this._opened) {
+ this._map.closePopup();
+ }
+ },
+
+ _initLayout: function () {
+ this._container = L.DomUtil.create('div', 'leaflet-popup ' + this.options.className);
+
+ if (this.options.closeButton) {
+ this._closeButton = L.DomUtil.create('a', 'leaflet-popup-close-button', this._container);
+ this._closeButton.href = '#close';
+ L.DomEvent.addListener(this._closeButton, 'click', this._onCloseButtonClick, this);
+ }
+
+ this._wrapper = L.DomUtil.create('div', 'leaflet-popup-content-wrapper', this._container);
+ L.DomEvent.disableClickPropagation(this._wrapper);
+ this._contentNode = L.DomUtil.create('div', 'leaflet-popup-content', this._wrapper);
+
+ this._tipContainer = L.DomUtil.create('div', 'leaflet-popup-tip-container', this._container);
+ this._tip = L.DomUtil.create('div', 'leaflet-popup-tip', this._tipContainer);
+ },
+
+ _update: function () {
+ 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 {
+ this._contentNode.innerHTML = '';
+ this._contentNode.appendChild(this._content);
+ }
+ },
+
+ _updateLayout: function () {
+ this._container.style.width = '';
+ this._container.style.whiteSpace = 'nowrap';
+
+ var width = this._container.offsetWidth;
+
+ this._container.style.width = (width > this.options.maxWidth ?
+ this.options.maxWidth : (width < this.options.minWidth ? this.options.minWidth : width)) + 'px';
+ this._container.style.whiteSpace = '';
+
+ this._containerWidth = this._container.offsetWidth;
+ },
+
+ _updatePosition: function () {
+ var pos = this._map.latLngToLayerPoint(this._latlng);
+
+ this._containerBottom = -pos.y - this.options.offset.y;
+ this._containerLeft = pos.x - Math.round(this._containerWidth / 2) + this.options.offset.x;
+
+ this._container.style.bottom = this._containerBottom + 'px';
+ this._container.style.left = this._containerLeft + 'px';
+ },
+
+ _adjustPan: function () {
+ if (!this.options.autoPan) {
+ return;
+ }
+
+ var containerHeight = this._container.offsetHeight,
+ layerPos = new L.Point(
+ this._containerLeft,
+ -containerHeight - this._containerBottom),
+ containerPos = this._map.layerPointToContainerPoint(layerPos),
+ adjustOffset = new L.Point(0, 0),
+ padding = this.options.autoPanPadding,
+ size = this._map.getSize();
+
+ if (containerPos.x < 0) {
+ adjustOffset.x = containerPos.x - padding.x;
+ }
+ if (containerPos.x + this._containerWidth > size.x) {
+ adjustOffset.x = containerPos.x + this._containerWidth - size.x + padding.x;
+ }
+ if (containerPos.y < 0) {
+ adjustOffset.y = containerPos.y - padding.y;
+ }
+ if (containerPos.y + containerHeight > size.y) {
+ adjustOffset.y = containerPos.y + containerHeight - size.y + padding.y;
+ }
+
+ if (adjustOffset.x || adjustOffset.y) {
+ this._map.panBy(adjustOffset);
+ }
+ },
+
+ _onCloseButtonClick: function (e) {
+ this._close();
+ L.DomEvent.stop(e);
+ }
+});
+
+
+/*
+ * Popup extension to L.Marker, adding openPopup & bindPopup methods.
+ */
+
+L.Marker.include({
+ openPopup: function () {
+ this._popup.setLatLng(this._latlng);
+ if (this._map) {
+ this._map.openPopup(this._popup);
+ }
+
+ return this;
+ },
+
+ closePopup: function () {
+ if (this._popup) {
+ this._popup._close();
+ }
+ return this;
+ },
+
+ bindPopup: function (content, options) {
+ options = L.Util.extend({offset: this.options.icon.popupAnchor}, options);
+
+ if (!this._popup) {
+ this.on('click', this.openPopup, this);
+ }
+
+ this._popup = new L.Popup(options, this);
+ this._popup.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;
+ this.addLayer(popup);
+ this.fire('popupopen', { popup: this._popup });
+
+ return this;
+ },
+
+ closePopup: function () {
+ if (this._popup) {
+ this.removeLayer(this._popup);
+ this.fire('popupclose', { popup: this._popup });
+ this._popup = null;
+ }
+ 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 = {};
+
+ if (layers) {
+ for (var 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._iterateLayers(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._iterateLayers(map.addLayer, map);
+ },
+
+ onRemove: function (map) {
+ this._iterateLayers(map.removeLayer, map);
+ delete this._map;
+ },
+
+ _iterateLayers: function (method, context) {
+ for (var i in this._layers) {
+ if (this._layers.hasOwnProperty(i)) {
+ method.call(context, this._layers[i]);
+ }
+ }
+ }
+});
+
+
+/*
+ * 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) {
+ this._initEvents(layer);
+ L.LayerGroup.prototype.addLayer.call(this, layer);
+
+ if (this._popupContent && layer.bindPopup) {
+ layer.bindPopup(this._popupContent);
+ }
+ },
+
+ bindPopup: function (content) {
+ this._popupContent = content;
+
+ return this.invoke('bindPopup', content);
+ },
+
+ setStyle: function (style) {
+ return this.invoke('setStyle', style);
+ },
+
+ _events: ['click', 'dblclick', 'mouseover', 'mouseout'],
+
+ _initEvents: function (layer) {
+ for (var i = 0, len = this._events.length; i < len; i++) {
+ layer.on(this._events[i], this._propagateEvent, this);
+ }
+ },
+
+ _propagateEvent: function (e) {
+ e.layer = e.target;
+ e.target = this;
+ this.fire(e.type, e);
+ }
+});
+
+
+/*
+ * 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)
+ CLIP_PADDING: 0.5
+ },
+
+ options: {
+ stroke: true,
+ color: '#0033ff',
+ weight: 5,
+ opacity: 0.5,
+
+ fill: false,
+ fillColor: null, //same as color by default
+ fillOpacity: 0.2,
+
+ clickable: true,
+
+ // TODO remove this, as all paths now update on moveend
+ updateOnMoveEnd: true
+ },
+
+ initialize: function (options) {
+ L.Util.setOptions(this, options);
+ },
+
+ onAdd: function (map) {
+ this._map = map;
+
+ this._initElements();
+ this._initEvents();
+ this.projectLatlngs();
+ this._updatePath();
+
+ map.on('viewreset', this.projectLatlngs, this);
+
+ this._updateTrigger = this.options.updateOnMoveEnd ? 'moveend' : 'viewreset';
+ map.on(this._updateTrigger, this._updatePath, this);
+ },
+
+ onRemove: function (map) {
+ this._map = null;
+
+ map._pathRoot.removeChild(this._container);
+
+ map.off('viewreset', this.projectLatlngs, this);
+ map.off(this._updateTrigger, 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();
+ }
+ }
+});
+
+L.Map.include({
+ _updatePathViewport: function () {
+ var p = L.Path.CLIP_PADDING,
+ size = this.getSize(),
+ //TODO this._map._getMapPanePos()
+ 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,
+ _createElement: function (name) {
+ return document.createElementNS(L.Path.SVG_NS, name);
+ }
+ },
+
+ getPathString: function () {
+ // form path string here
+ },
+
+ _initElements: function () {
+ this._map._initPathRoot();
+ this._initPath();
+ this._initStyle();
+ },
+
+ _initPath: function () {
+ this._container = L.Path._createElement('g');
+
+ this._path = L.Path._createElement('path');
+ this._container.appendChild(this._path);
+
+ this._map._pathRoot.appendChild(this._container);
+ },
+
+ _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');
+ } else {
+ this._path.setAttribute('fill', 'none');
+ }
+ 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.fill) {
+ this._path.setAttribute('fill', this.options.fillColor || this.options.color);
+ this._path.setAttribute('fill-opacity', this.options.fillOpacity);
+ }
+ },
+
+ _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.vml) {
+ this._path.setAttribute('class', 'leaflet-clickable');
+ }
+
+ L.DomEvent.addListener(this._container, 'click', this._onMouseClick, this);
+
+ var events = ['dblclick', 'mousedown', 'mouseover', 'mouseout', 'mousemove'];
+ for (var i = 0; i < events.length; i++) {
+ L.DomEvent.addListener(this._container, events[i], this._fireMouseEvent, this);
+ }
+ }
+ },
+
+ _onMouseClick: function (e) {
+ if (this._map.dragging && this._map.dragging.moved()) {
+ return;
+ }
+ this._fireMouseEvent(e);
+ },
+
+ _fireMouseEvent: function (e) {
+ if (!this.hasEventListeners(e.type)) {
+ return;
+ }
+ this.fire(e.type, {
+ latlng: this._map.mouseEventToLatLng(e),
+ layerPoint: this._map.mouseEventToLayerPoint(e)
+ });
+ L.DomEvent.stopPropagation(e);
+ }
+});
+
+L.Map.include({
+ _initPathRoot: function () {
+ if (!this._pathRoot) {
+ this._pathRoot = L.Path._createElement('svg');
+ this._panes.overlayPane.appendChild(this._pathRoot);
+
+ this.on('moveend', this._updateSvgViewport);
+ this._updateSvgViewport();
+ }
+ },
+
+ _updateSvgViewport: function () {
+ 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
+ // Unfortunately I haven't found a good workaround for this yet
+ if (L.Browser.webkit) {
+ 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.webkit) {
+ 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 (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 () {
+ var d = document.createElement('div'), s;
+ d.innerHTML = '<v:shape adj="1"/>';
+ s = d.firstChild;
+ s.style.behavior = 'url(#default#VML)';
+
+ return (s && (typeof s.adj === 'object'));
+}());
+
+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 () {
+ this._container = L.Path._createElement('shape');
+ this._container.className += ' leaflet-vml-shape' +
+ (this.options.clickable ? ' leaflet-clickable' : '');
+ this._container.coordsize = '1 1';
+
+ this._path = L.Path._createElement('path');
+ this._container.appendChild(this._path);
+
+ this._map._pathRoot.appendChild(this._container);
+ },
+
+ _initStyle: function () {
+ if (this.options.stroke) {
+ this._stroke = L.Path._createElement('stroke');
+ this._stroke.endcap = 'round';
+ this._container.appendChild(this._stroke);
+ } else {
+ this._container.stroked = false;
+ }
+ if (this.options.fill) {
+ this._container.filled = true;
+ this._fill = L.Path._createElement('fill');
+ this._container.appendChild(this._fill);
+ } else {
+ this._container.filled = false;
+ }
+ this._updateStyle();
+ },
+
+ _updateStyle: function () {
+ if (this.options.stroke) {
+ this._stroke.weight = this.options.weight + 'px';
+ this._stroke.color = this.options.color;
+ this._stroke.opacity = this.options.opacity;
+ }
+ if (this.options.fill) {
+ this._fill.color = this.options.fillColor || this.options.color;
+ this._fill.opacity = this.options.fillOpacity;
+ }
+ },
+
+ _updatePath: function () {
+ this._container.style.display = 'none';
+ this._path.v = this.getPathString() + ' '; // the space fixes IE empty path string bug
+ this._container.style.display = '';
+ }
+});
+
+L.Map.include(L.Browser.svg || !L.Browser.vml ? {} : {
+ _initPathRoot: function () {
+ if (!this._pathRoot) {
+ this._pathRoot = document.createElement('div');
+ this._pathRoot.className = 'leaflet-vml-container';
+ this._panes.overlayPane.appendChild(this._pathRoot);
+
+ this.on('moveend', this._updatePathViewport);
+ this._updatePathViewport();
+ }
+ }
+});
+
+
+/*
+ * 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 = latlngs;
+ },
+
+ 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,
+
+ updateOnMoveEnd: true
+ },
+
+ 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 = latlngs;
+ this._redraw();
+ return this;
+ },
+
+ addLatLng: function (latlng) {
+ this._latlngs.push(latlng);
+ this._redraw();
+ return this;
+ },
+
+ spliceLatLngs: function (index, howMany) {
+ var removed = [].splice.apply(this._latlngs, arguments);
+ 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 point = L.LineUtil._sqClosestPointOnSegment(p, p1, p2);
+ if (point._sqDist < minDistance) {
+ minDistance = point._sqDist;
+ minPoint = point;
+ }
+ }
+ }
+ 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;
+ },
+
+ _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 () {
+ this._clipPoints();
+ this._simplifyPoints();
+
+ L.Path.prototype._updatePath.call(this);
+ }
+});
+
+
+/*
+ * 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)) {
+ this._latlngs = 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');
+ }
+});
+
+
+/*
+ * 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._iterateLayers(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));
+ }
+ }
+ });
+ }
+
+ L.MultiPolyline = createMulti(L.Polyline);
+ L.MultiPolygon = createMulti(L.Polygon);
+}());
+
+
+/*
+ * 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 = latlng;
+ this._mRadius = radius;
+ },
+
+ options: {
+ fill: true
+ },
+
+ setLatLng: function (latlng) {
+ this._latlng = latlng;
+ this._redraw();
+ return this;
+ },
+
+ setRadius: function (radius) {
+ this._mRadius = radius;
+ this._redraw();
+ return this;
+ },
+
+ projectLatlngs: function () {
+ var equatorLength = 40075017,
+ hLength = equatorLength * Math.cos(L.LatLng.DEG_TO_RAD * this._latlng.lat);
+
+ var lngSpan = (this._mRadius / hLength) * 360,
+ latlng2 = new L.LatLng(this._latlng.lat, this._latlng.lng - lngSpan, true),
+ point2 = this._map.latLngToLayerPoint(latlng2);
+
+ this._point = this._map.latLngToLayerPoint(this._latlng);
+ this._radius = Math.round(this._point.x - point2.x);
+ },
+
+ 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);
+ }
+ },
+
+ _checkIfEmpty: function () {
+ 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.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;
+ this._redraw();
+ return this;
+ }
+});
+
+
+/*
+ * 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
+ },
+
+ options: {
+ updateOnMoveEnd: true
+ },
+
+ _initElements: function () {
+ this._map._initPathRoot();
+ this._ctx = this._map._canvasCtx;
+ },
+
+ _updateStyle: function () {
+ if (this.options.stroke) {
+ this._ctx.lineWidth = this.options.weight;
+ this._ctx.strokeStyle = this.options.color;
+ }
+ if (this.options.fill) {
+ this._ctx.fillStyle = this.options.fillColor || this.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;
+ }
+
+ this._drawPath();
+
+ this._ctx.save();
+
+ this._updateStyle();
+
+ var opacity = this.options.opacity,
+ fillOpacity = this.options.fillOpacity;
+
+ if (this.options.fill) {
+ if (fillOpacity < 1) {
+ this._ctx.globalAlpha = fillOpacity;
+ }
+ this._ctx.fill();
+ }
+
+ if (this.options.stroke) {
+ if (opacity < 1) {
+ this._ctx.globalAlpha = opacity;
+ }
+ this._ctx.stroke();
+ }
+
+ this._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);
+ }
+ },
+
+ onRemove: function (map) {
+ map.off('viewreset', this._projectLatlngs, this);
+ map.off(this._updateTrigger, this._updatePath, this);
+ map.fire(this._updateTrigger);
+ }
+});
+
+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);
+
+ this.on('moveend', this._updateCanvasViewport);
+ this._updateCanvasViewport();
+ }
+ },
+
+ _updateCanvasViewport: function () {
+ this._updatePathViewport();
+
+ var vp = this._pathViewport,
+ min = vp.min,
+ size = vp.max.subtract(min),
+ root = this._pathRoot;
+
+ //TODO check if it's 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.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);
+ },
+
+ _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._geojson = geojson;
+ this._layers = {};
+
+ if (geojson) {
+ this.addGeoJSON(geojson);
+ }
+ },
+
+ addGeoJSON: function (geojson) {
+ if (geojson.features) {
+ for (var i = 0, len = geojson.features.length; i < len; i++) {
+ this.addGeoJSON(geojson.features[i]);
+ }
+ return;
+ }
+
+ var isFeature = (geojson.type === 'Feature'),
+ geometry = (isFeature ? geojson.geometry : geojson),
+ layer = L.GeoJSON.geometryToLayer(geometry, this.options.pointToLayer);
+
+ this.fire('featureparse', {
+ layer: layer,
+ properties: geojson.properties,
+ geometryType: geometry.type,
+ bbox: geojson.bbox,
+ id: geojson.id
+ });
+
+ this.addLayer(layer);
+ }
+});
+
+L.Util.extend(L.GeoJSON, {
+ geometryToLayer: function (geometry, pointToLayer) {
+ var coords = geometry.coordinates,
+ latlng, latlngs,
+ i, len,
+ layer,
+ layers = [];
+
+ switch (geometry.type) {
+ case 'Point':
+ latlng = this.coordsToLatLng(coords);
+ return pointToLayer ? pointToLayer(latlng) : new L.Marker(latlng);
+
+ case 'MultiPoint':
+ for (i = 0, len = coords.length; i < len; i++) {
+ latlng = this.coordsToLatLng(coords[i]);
+ layer = pointToLayer ? pointToLayer(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 (/*Array*/ coords, /*Boolean*/ reverse)/*: LatLng*/ {
+ var lat = parseFloat(coords[reverse ? 0 : 1]),
+ lng = parseFloat(coords[reverse ? 1 : 0]);
+ return new L.LatLng(lat, lng, true);
+ },
+
+ coordsToLatLngs: function (/*Array*/ coords, /*Number*/ levelsDeep, /*Boolean*/ reverse)/*: Array*/ {
+ var latlng, latlngs = [],
+ i, len = coords.length;
+
+ for (i = 0; i < len; i++) {
+ latlng = levelsDeep ?
+ this.coordsToLatLngs(coords[i], levelsDeep - 1, reverse) :
+ this.coordsToLatLng(coords[i], reverse);
+ latlngs.push(latlng);
+ }
+ return latlngs;
+ }
+});
+
+
+/*
+ * L.DomEvent contains functions for working with DOM events.
+ */
+
+L.DomEvent = {
+ /* inpired by John Resig, Dean Edwards and YUI addEvent implementations */
+ addListener: function (/*HTMLElement*/ obj, /*String*/ type, /*Function*/ fn, /*Object*/ context) {
+ var id = L.Util.stamp(fn),
+ key = '_leaflet_' + type + id;
+
+ if (obj[key]) {
+ return;
+ }
+
+ var handler = function (e) {
+ return fn.call(context || obj, e || L.DomEvent._getEvent());
+ };
+
+ if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener) {
+ this.addDoubleTapListener(obj, handler, id);
+ } else if ('addEventListener' in obj) {
+ if (type === 'mousewheel') {
+ obj.addEventListener('DOMMouseScroll', handler, false);
+ obj.addEventListener(type, handler, false);
+ } else if ((type === 'mouseenter') || (type === 'mouseleave')) {
+ var 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;
+ },
+
+ removeListener: function (/*HTMLElement*/ obj, /*String*/ type, /*Function*/ fn) {
+ 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;
+ },
+
+ _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 */ // evil magic for IE
+ _getEvent: function () {
+ 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 */
+
+ stopPropagation: function (/*Event*/ e) {
+ if (e.stopPropagation) {
+ e.stopPropagation();
+ } else {
+ e.cancelBubble = true;
+ }
+ },
+
+ disableClickPropagation: function (/*HTMLElement*/ el) {
+ L.DomEvent.addListener(el, L.Draggable.START, L.DomEvent.stopPropagation);
+ L.DomEvent.addListener(el, 'click', L.DomEvent.stopPropagation);
+ L.DomEvent.addListener(el, 'dblclick', L.DomEvent.stopPropagation);
+ },
+
+ preventDefault: function (/*Event*/ e) {
+ if (e.preventDefault) {
+ e.preventDefault();
+ } else {
+ e.returnValue = false;
+ }
+ },
+
+ stop: function (e) {
+ L.DomEvent.preventDefault(e);
+ L.DomEvent.stopPropagation(e);
+ },
+
+ getMousePosition: function (e, container) {
+ var x = e.pageX ? e.pageX : e.clientX +
+ document.body.scrollLeft + document.documentElement.scrollLeft,
+ y = e.pageY ? e.pageY : e.clientY +
+ document.body.scrollTop + document.documentElement.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;
+ }
+};
+
+
+
+/*
+ * 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.addListener(this._dragStartTarget, L.Draggable.START, this._onDown, this);
+ this._enabled = true;
+ },
+
+ disable: function () {
+ if (!this._enabled) {
+ return;
+ }
+ L.DomEvent.removeListener(this._dragStartTarget, L.Draggable.START, this._onDown);
+ this._enabled = false;
+ },
+
+ _onDown: function (e) {
+ if ((!L.Browser.touch && e.shiftKey) || ((e.which !== 1) && (e.button !== 1) && !e.touches)) {
+ return;
+ }
+
+ if (e.touches && e.touches.length > 1) {
+ 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') {
+ el.className += ' leaflet-active';
+ }
+
+ this._moved = false;
+ if (this._moving) {
+ return;
+ }
+
+ if (!L.Browser.touch) {
+ L.DomUtil.disableTextSelection();
+ this._setMovingCursor();
+ }
+
+ this._startPos = this._newPos = L.DomUtil.getPosition(this._element);
+ this._startPoint = new L.Point(first.clientX, first.clientY);
+
+ L.DomEvent.addListener(document, L.Draggable.MOVE, this._onMove, this);
+ L.DomEvent.addListener(document, L.Draggable.END, this._onUp, this);
+ },
+
+ _onMove: function (e) {
+ if (e.touches && e.touches.length > 1) {
+ return;
+ }
+
+ L.DomEvent.preventDefault(e);
+
+ var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e);
+
+ if (!this._moved) {
+ this.fire('dragstart');
+ this._moved = true;
+ }
+ this._moving = true;
+
+ var newPoint = new L.Point(first.clientX, first.clientY);
+ this._newPos = this._startPos.add(newPoint).subtract(this._startPoint);
+
+ 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 (e.changedTouches) {
+ var first = e.changedTouches[0],
+ el = first.target,
+ dist = (this._newPos && this._newPos.distanceTo(this._startPos)) || 0;
+
+ if (el.tagName.toLowerCase() === 'a') {
+ el.className = el.className.replace(' leaflet-active', '');
+ }
+
+ if (dist < L.Draggable.TAP_TOLERANCE) {
+ this._simulateEvent('click', first);
+ }
+ }
+
+ if (!L.Browser.touch) {
+ L.DomUtil.enableTextSelection();
+ this._restoreCursor();
+ }
+
+ L.DomEvent.removeListener(document, L.Draggable.MOVE, this._onMove);
+ L.DomEvent.removeListener(document, L.Draggable.END, this._onUp);
+
+ if (this._moved) {
+ this.fire('dragend');
+ }
+ this._moving = false;
+ },
+
+ _setMovingCursor: function () {
+ this._bodyCursor = document.body.style.cursor;
+ document.body.style.cursor = 'move';
+ },
+
+ _restoreCursor: function () {
+ document.body.style.cursor = this._bodyCursor;
+ },
+
+ _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.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, this)
+ .on('drag', this._onDrag, this)
+ .on('dragend', this._onDragEnd, this);
+
+ var options = this._map.options;
+
+ if (options.worldCopyJump && !options.continuousWorld) {
+ 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 () {
+ this._map
+ .fire('movestart')
+ .fire('dragstart');
+ },
+
+ _onDrag: function () {
+ 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);
+ },
+
+ _onPreDrag: function () {
+ var map = this._map,
+ worldWidth = map.options.scale(map.getZoom()),
+ halfWidth = Math.round(worldWidth / 2),
+ dx = this._initialWorldOffset.x,
+ 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;
+
+ map
+ .fire('moveend')
+ .fire('dragend');
+
+ if (map.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.Handler.DoubleClickZoom is used internally by L.Map to add double-click zooming.
+ */
+
+L.Map.DoubleClickZoom = L.Handler.extend({
+ addHooks: function () {
+ this._map.on('dblclick', this._onDoubleClick);
+ // TODO remove 3d argument?
+ },
+
+ removeHooks: function () {
+ this._map.off('dblclick', this._onDoubleClick);
+ },
+
+ _onDoubleClick: function (e) {
+ this.setView(e.latlng, this._zoom + 1);
+ }
+});
+
+
+/*
+ * L.Handler.ScrollWheelZoom is used internally by L.Map to enable mouse scroll wheel zooming on the map.
+ */
+
+L.Map.ScrollWheelZoom = L.Handler.extend({
+ addHooks: function () {
+ L.DomEvent.addListener(this._map._container, 'mousewheel', this._onWheelScroll, this);
+ this._delta = 0;
+ },
+
+ removeHooks: function () {
+ L.DomEvent.removeListener(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), 50);
+
+ 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 newCenter = this._getCenterForScrollWheelZoom(this._lastMousePos, delta),
+ newZoom = zoom + delta;
+
+ map.setView(newCenter, newZoom);
+ },
+
+ _getCenterForScrollWheelZoom: function (mousePos, delta) {
+ var map = this._map,
+ centerPoint = map.getPixelBounds().getCenter(),
+ viewHalf = map.getSize().divideBy(2),
+ centerOffset = mousePos.subtract(viewHalf).multiplyBy(1 - Math.pow(2, -delta)),
+ newCenterPoint = centerPoint.add(centerOffset);
+
+ return map.unproject(newCenterPoint, map._zoom, true);
+ }
+});
+
+
+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);
+ },
+
+ removeDoubleTapListener: function (obj, id) {
+ var pre = '_leaflet_';
+ obj.removeEventListener(obj, obj[pre + 'touchstart' + id], false);
+ obj.removeEventListener(obj, obj[pre + 'touchend' + id], false);
+ }
+});
+
+
+/*
+ * L.Handler.TouchZoom is used internally by L.Map to add touch-zooming on Webkit-powered mobile browsers.
+ */
+
+L.Map.TouchZoom = L.Handler.extend({
+ addHooks: function () {
+ L.DomEvent.addListener(this._map._container, 'touchstart', this._onTouchStart, this);
+ },
+
+ removeHooks: function () {
+ L.DomEvent.removeListener(this._map._container, 'touchstart', this._onTouchStart, this);
+ },
+
+ _onTouchStart: function (e) {
+ if (!e.touches || e.touches.length !== 2 || this._map._animatingZoom) {
+ return;
+ }
+
+ var p1 = this._map.mouseEventToLayerPoint(e.touches[0]),
+ p2 = this._map.mouseEventToLayerPoint(e.touches[1]),
+ viewCenter = this._map.containerPointToLayerPoint(this._map.getSize().divideBy(2));
+
+ this._startCenter = p1.add(p2).divideBy(2, true);
+ this._startDist = p1.distanceTo(p2);
+ //this._startTransform = this._map._mapPane.style.webkitTransform;
+
+ this._moved = false;
+ this._zooming = true;
+
+ this._centerOffset = viewCenter.subtract(this._startCenter);
+
+ L.DomEvent.addListener(document, 'touchmove', this._onTouchMove, this);
+ L.DomEvent.addListener(document, 'touchend', this._onTouchEnd, this);
+
+ L.DomEvent.preventDefault(e);
+ },
+
+ _onTouchMove: function (e) {
+ if (!e.touches || e.touches.length !== 2) {
+ return;
+ }
+
+ if (!this._moved) {
+ this._map._mapPane.className += ' leaflet-zoom-anim';
+
+ this._map
+ .fire('zoomstart')
+ .fire('movestart')
+ ._prepareTileBg();
+
+ this._moved = true;
+ }
+
+ var p1 = this._map.mouseEventToLayerPoint(e.touches[0]),
+ p2 = this._map.mouseEventToLayerPoint(e.touches[1]);
+
+ this._scale = p1.distanceTo(p2) / this._startDist;
+ this._delta = p1.add(p2).divideBy(2, true).subtract(this._startCenter);
+
+ // 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
+
+ this._map._tileBg.style.webkitTransform = [
+ L.DomUtil.getTranslateString(this._delta),
+ L.DomUtil.getScaleString(this._scale, this._startCenter)
+ ].join(" ");
+
+ L.DomEvent.preventDefault(e);
+ },
+
+ _onTouchEnd: function (e) {
+ if (!this._moved || !this._zooming) {
+ return;
+ }
+ this._zooming = false;
+
+ var oldZoom = this._map.getZoom(),
+ floatZoomDelta = Math.log(this._scale) / Math.LN2,
+ roundZoomDelta = (floatZoomDelta > 0 ? Math.ceil(floatZoomDelta) : Math.floor(floatZoomDelta)),
+ zoom = this._map._limitZoom(oldZoom + roundZoomDelta),
+ zoomDelta = zoom - oldZoom,
+ centerOffset = this._centerOffset.subtract(this._delta).divideBy(this._scale),
+ centerPoint = this._map.getPixelOrigin().add(this._startCenter).add(centerOffset),
+ center = this._map.unproject(centerPoint);
+
+ L.DomEvent.removeListener(document, 'touchmove', this._onTouchMove);
+ L.DomEvent.removeListener(document, 'touchend', this._onTouchEnd);
+
+ var finalScale = Math.pow(2, zoomDelta);
+
+ this._map._runAnimation(center, zoom, finalScale / this._scale, this._startCenter.add(centerOffset));
+ }
+});
+
+
+/*
+ * L.Handler.ShiftDragZoom is used internally by L.Map to add shift-drag zoom (zoom to a selected bounding box).
+ */
+
+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.addListener(this._container, 'mousedown', this._onMouseDown, this);
+ },
+
+ removeHooks: function () {
+ L.DomEvent.removeListener(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 move cursor to styles
+ this._container.style.cursor = 'crosshair';
+
+ L.DomEvent.addListener(document, 'mousemove', this._onMouseMove, this);
+ L.DomEvent.addListener(document, 'mouseup', this._onMouseUp, this);
+
+ L.DomEvent.preventDefault(e);
+ },
+
+ _onMouseMove: function (e) {
+ var layerPoint = this._map.mouseEventToLayerPoint(e),
+ dx = layerPoint.x - this._startLayerPoint.x,
+ dy = layerPoint.y - this._startLayerPoint.y;
+
+ var newX = Math.min(layerPoint.x, this._startLayerPoint.x),
+ newY = Math.min(layerPoint.y, this._startLayerPoint.y),
+ newPos = new L.Point(newX, newY);
+
+ L.DomUtil.setPosition(this._box, newPos);
+
+ this._box.style.width = (Math.abs(dx) - 4) + 'px';
+ this._box.style.height = (Math.abs(dy) - 4) + 'px';
+ },
+
+ _onMouseUp: function (e) {
+ this._pane.removeChild(this._box);
+ this._container.style.cursor = '';
+
+ L.DomUtil.enableTextSelection();
+
+ L.DomEvent.removeListener(document, 'mousemove', this._onMouseMove);
+ L.DomEvent.removeListener(document, 'mouseup', this._onMouseUp);
+
+ var layerPoint = this._map.mouseEventToLayerPoint(e);
+
+ var bounds = new L.LatLngBounds(
+ this._map.layerPointToLatLng(this._startLayerPoint),
+ this._map.layerPointToLatLng(layerPoint));
+
+ this._map.fitBounds(bounds);
+ }
+});
+
+
+/*
+ * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable.
+ */
+
+L.Handler.MarkerDrag = L.Handler.extend({
+ initialize: function (marker) {
+ this._marker = marker;
+ },
+
+ addHooks: function () {
+ var icon = this._marker._icon;
+ if (!this._draggable) {
+ this._draggable = new L.Draggable(icon, icon);
+
+ this._draggable
+ .on('dragstart', this._onDragStart, 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.Control = {};
+
+L.Control.Position = {
+ TOP_LEFT: 'topLeft',
+ TOP_RIGHT: 'topRight',
+ BOTTOM_LEFT: 'bottomLeft',
+ BOTTOM_RIGHT: 'bottomRight'
+};
+
+
+L.Map.include({
+ addControl: function (control) {
+ control.onAdd(this);
+
+ var pos = control.getPosition(),
+ corner = this._controlCorners[pos],
+ container = control.getContainer();
+
+ L.DomUtil.addClass(container, 'leaflet-control');
+
+ if (pos.indexOf('bottom') !== -1) {
+ corner.insertBefore(container, corner.firstChild);
+ } else {
+ corner.appendChild(container);
+ }
+ return this;
+ },
+
+ removeControl: function (control) {
+ var pos = control.getPosition(),
+ corner = this._controlCorners[pos],
+ container = control.getContainer();
+
+ corner.removeChild(container);
+
+ if (control.onRemove) {
+ control.onRemove(this);
+ }
+ return this;
+ },
+
+ _initControlPos: function () {
+ var corners = this._controlCorners = {},
+ classPart = 'leaflet-',
+ top = classPart + 'top',
+ bottom = classPart + 'bottom',
+ left = classPart + 'left',
+ right = classPart + 'right',
+ controlContainer = L.DomUtil.create('div', classPart + 'control-container', this._container);
+
+ if (L.Browser.touch) {
+ controlContainer.className += ' ' + classPart + 'big-buttons';
+ }
+
+ corners.topLeft = L.DomUtil.create('div', top + ' ' + left, controlContainer);
+ corners.topRight = L.DomUtil.create('div', top + ' ' + right, controlContainer);
+ corners.bottomLeft = L.DomUtil.create('div', bottom + ' ' + left, controlContainer);
+ corners.bottomRight = L.DomUtil.create('div', bottom + ' ' + right, controlContainer);
+ }
+});
+
+
+
+L.Control.Zoom = L.Class.extend({
+ onAdd: function (map) {
+ this._map = map;
+ this._container = L.DomUtil.create('div', 'leaflet-control-zoom');
+
+ this._zoomInButton = this._createButton(
+ 'Zoom in', 'leaflet-control-zoom-in', this._map.zoomIn, this._map);
+ this._zoomOutButton = this._createButton(
+ 'Zoom out', 'leaflet-control-zoom-out', this._map.zoomOut, this._map);
+
+ this._container.appendChild(this._zoomInButton);
+ this._container.appendChild(this._zoomOutButton);
+ },
+
+ getContainer: function () {
+ return this._container;
+ },
+
+ getPosition: function () {
+ return L.Control.Position.TOP_LEFT;
+ },
+
+ _createButton: function (title, className, fn, context) {
+ var link = document.createElement('a');
+ link.href = '#';
+ link.title = title;
+ link.className = className;
+
+ L.DomEvent.disableClickPropagation(link);
+ L.DomEvent.addListener(link, 'click', L.DomEvent.preventDefault);
+ L.DomEvent.addListener(link, 'click', fn, context);
+
+ return link;
+ }
+});
+
+
+L.Control.Attribution = L.Class.extend({
+ initialize: function (prefix) {
+ this._prefix = prefix || 'Powered by <a href="http://leaflet.cloudmade.com">Leaflet</a>';
+ this._attributions = {};
+ },
+
+ onAdd: function (map) {
+ this._container = L.DomUtil.create('div', 'leaflet-control-attribution');
+ L.DomEvent.disableClickPropagation(this._container);
+ this._map = map;
+ this._update();
+ },
+
+ getPosition: function () {
+ return L.Control.Position.BOTTOM_RIGHT;
+ },
+
+ getContainer: function () {
+ return this._container;
+ },
+
+ setPrefix: function (prefix) {
+ this._prefix = prefix;
+ this._update();
+ },
+
+ addAttribution: function (text) {
+ if (!text) {
+ return;
+ }
+ this._attributions[text] = true;
+ this._update();
+ },
+
+ removeAttribution: function (text) {
+ if (!text) {
+ return;
+ }
+ delete this._attributions[text];
+ this._update();
+ },
+
+ _update: function () {
+ if (!this._map) {
+ return;
+ }
+
+ var attribs = [];
+
+ for (var i in this._attributions) {
+ if (this._attributions.hasOwnProperty(i)) {
+ attribs.push(i);
+ }
+ }
+
+ var prefixAndAttribs = [];
+ if (this._prefix) {
+ prefixAndAttribs.push(this._prefix);
+ }
+ if (attribs.length) {
+ prefixAndAttribs.push(attribs.join(', '));
+ }
+
+ this._container.innerHTML = prefixAndAttribs.join(' — ');
+ }
+});
+
+
+
+L.Control.Layers = L.Class.extend({
+ options: {
+ collapsed: !L.Browser.touch
+ },
+
+ initialize: function (baseLayers, overlays, options) {
+ L.Util.setOptions(this, options);
+
+ this._layers = {};
+
+ 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._map = map;
+
+ this._initLayout();
+ this._update();
+ },
+
+ getContainer: function () {
+ return this._container;
+ },
+
+ getPosition: function () {
+ return L.Control.Position.TOP_RIGHT;
+ },
+
+ 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 () {
+ this._container = L.DomUtil.create('div', 'leaflet-control-layers');
+ L.DomEvent.disableClickPropagation(this._container);
+
+ this._form = L.DomUtil.create('form', 'leaflet-control-layers-list');
+
+ if (this.options.collapsed) {
+ L.DomEvent.addListener(this._container, 'mouseover', this._expand, this);
+ L.DomEvent.addListener(this._container, 'mouseout', this._collapse, this);
+
+ var link = this._layersLink = L.DomUtil.create('a', 'leaflet-control-layers-toggle');
+ link.href = '#';
+ link.title = 'Layers';
+
+ L.DomEvent.addListener(link, 'focus', this._expand, this);
+ L.DomEvent.addListener(this._map, L.Draggable.START, this._collapse, this);
+ // TODO keyboard accessibility
+
+ this._container.appendChild(link);
+ } else {
+ this._expand();
+ }
+
+ this._baseLayersList = L.DomUtil.create('div', 'leaflet-control-layers-base', this._form);
+ this._separator = L.DomUtil.create('div', 'leaflet-control-layers-separator', this._form);
+ this._overlaysList = L.DomUtil.create('div', 'leaflet-control-layers-overlays', this._form);
+
+ this._container.appendChild(this._form);
+ },
+
+ _addLayer: function (layer, name, overlay) {
+ var id = L.Util.stamp(layer);
+ this._layers[id] = {
+ layer: layer,
+ name: name,
+ overlay: overlay
+ };
+ },
+
+ _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');
+ },
+
+ _addItem: function (obj, onclick) {
+ var label = document.createElement('label');
+
+ var input = document.createElement('input');
+ if (!obj.overlay) {
+ input.name = 'leaflet-base-layers';
+ }
+ input.type = obj.overlay ? 'checkbox' : 'radio';
+ input.checked = this._map.hasLayer(obj.layer);
+ input.layerId = L.Util.stamp(obj.layer);
+
+ L.DomEvent.addListener(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.Transition = L.Class.extend({
+ includes: L.Mixin.Events,
+
+ statics: {
+ CUSTOM_PROPS_SETTERS: {
+ position: L.DomUtil.setPosition
+ //TODO transform custom attr
+ },
+
+ implemented: function () {
+ return L.Transition.NATIVE || L.Transition.TIMER;
+ }
+ },
+
+ options: {
+ easing: 'ease',
+ duration: 0.5
+ },
+
+ _setProperty: function (prop, value) {
+ var setters = L.Transition.CUSTOM_PROPS_SETTERS;
+ if (prop in setters) {
+ setters[prop](this._el, value);
+ } else {
+ this._el.style[prop] = value;
+ }
+ }
+});
+
+
+/*
+ * L.Transition native implementation that powers Leaflet animation
+ * in browsers that support CSS3 Transitions
+ */
+
+L.Transition = L.Transition.extend({
+ statics: (function () {
+ var transition = L.DomUtil.TRANSITION,
+ transitionEnd = (transition === 'webkitTransition' || transition === 'OTransition' ?
+ transition + 'End' : 'transitionend');
+
+ return {
+ NATIVE: !!transition,
+
+ TRANSITION: transition,
+ PROPERTY: transition + 'Property',
+ DURATION: transition + 'Duration',
+ EASING: transition + 'TimingFunction',
+ END: transitionEnd,
+
+ // transition-property value to use with each particular custom property
+ CUSTOM_PROPS_PROPERTIES: {
+ position: L.Browser.webkit ? L.DomUtil.TRANSFORM : 'top, left'
+ }
+ };
+ }()),
+
+ options: {
+ fakeStepInterval: 100
+ },
+
+ initialize: function (/*HTMLElement*/ el, /*Object*/ options) {
+ this._el = el;
+ L.Util.setOptions(this, options);
+
+ L.DomEvent.addListener(el, L.Transition.END, this._onTransitionEnd, this);
+ this._onFakeStep = L.Util.bind(this._onFakeStep, this);
+ },
+
+ run: function (/*Object*/ props) {
+ var prop,
+ propsList = [],
+ customProp = L.Transition.CUSTOM_PROPS_PROPERTIES;
+
+ for (prop in props) {
+ if (props.hasOwnProperty(prop)) {
+ prop = customProp[prop] ? customProp[prop] : prop;
+ prop = this._dasherize(prop);
+ propsList.push(prop);
+ }
+ }
+
+ this._el.style[L.Transition.DURATION] = this.options.duration + 's';
+ this._el.style[L.Transition.EASING] = this.options.easing;
+ this._el.style[L.Transition.PROPERTY] = propsList.join(', ');
+
+ for (prop in props) {
+ if (props.hasOwnProperty(prop)) {
+ this._setProperty(prop, props[prop]);
+ }
+ }
+
+ this._inProgress = true;
+
+ this.fire('start');
+
+ if (L.Transition.NATIVE) {
+ clearInterval(this._timer);
+ this._timer = setInterval(this._onFakeStep, this.options.fakeStepInterval);
+ } else {
+ this._onTransitionEnd();
+ }
+ },
+
+ _dasherize: (function () {
+ var re = /([A-Z])/g;
+
+ function replaceFn(w) {
+ return '-' + w.toLowerCase();
+ }
+
+ return function (str) {
+ return str.replace(re, replaceFn);
+ };
+ }()),
+
+ _onFakeStep: function () {
+ this.fire('step');
+ },
+
+ _onTransitionEnd: function () {
+ if (this._inProgress) {
+ this._inProgress = false;
+ clearInterval(this._timer);
+
+ this._el.style[L.Transition.PROPERTY] = 'none';
+
+ this.fire('step');
+ this.fire('end');
+ }
+ }
+});
+
+
+/*
+ * L.Transition fallback implementation that powers Leaflet animation
+ * in browsers that don't support CSS3 Transitions
+ */
+
+L.Transition = L.Transition.NATIVE ? L.Transition : L.Transition.extend({
+ statics: {
+ getTime: Date.now || function () {
+ return +new Date();
+ },
+
+ TIMER: true,
+
+ EASINGS: {
+ 'ease': [0.25, 0.1, 0.25, 1.0],
+ 'linear': [0.0, 0.0, 1.0, 1.0],
+ 'ease-in': [0.42, 0, 1.0, 1.0],
+ 'ease-out': [0, 0, 0.58, 1.0],
+ 'ease-in-out': [0.42, 0, 0.58, 1.0]
+ },
+
+ CUSTOM_PROPS_GETTERS: {
+ position: L.DomUtil.getPosition
+ },
+
+ //used to get units from strings like "10.5px" (->px)
+ UNIT_RE: /^[\d\.]+(\D*)$/
+ },
+
+ options: {
+ fps: 50
+ },
+
+ initialize: function (el, options) {
+ this._el = el;
+ L.Util.extend(this.options, options);
+
+ var easings = L.Transition.EASINGS[this.options.easing] || L.Transition.EASINGS.ease;
+
+ this._p1 = new L.Point(0, 0);
+ this._p2 = new L.Point(easings[0], easings[1]);
+ this._p3 = new L.Point(easings[2], easings[3]);
+ this._p4 = new L.Point(1, 1);
+
+ this._step = L.Util.bind(this._step, this);
+ this._interval = Math.round(1000 / this.options.fps);
+ },
+
+ run: function (props) {
+ this._props = {};
+
+ var getters = L.Transition.CUSTOM_PROPS_GETTERS,
+ re = L.Transition.UNIT_RE;
+
+ this.fire('start');
+
+ for (var prop in props) {
+ if (props.hasOwnProperty(prop)) {
+ var p = {};
+ if (prop in getters) {
+ p.from = getters[prop](this._el);
+ } else {
+ var matches = this._el.style[prop].match(re);
+ p.from = parseFloat(matches[0]);
+ p.unit = matches[1];
+ }
+ p.to = props[prop];
+ this._props[prop] = p;
+ }
+ }
+
+ clearInterval(this._timer);
+ this._timer = setInterval(this._step, this._interval);
+ this._startTime = L.Transition.getTime();
+ },
+
+ _step: function () {
+ var time = L.Transition.getTime(),
+ elapsed = time - this._startTime,
+ duration = this.options.duration * 1000;
+
+ if (elapsed < duration) {
+ this._runFrame(this._cubicBezier(elapsed / duration));
+ } else {
+ this._runFrame(1);
+ this._complete();
+ }
+ },
+
+ _runFrame: function (percentComplete) {
+ var setters = L.Transition.CUSTOM_PROPS_SETTERS,
+ prop, p, value;
+
+ for (prop in this._props) {
+ if (this._props.hasOwnProperty(prop)) {
+ p = this._props[prop];
+ if (prop in setters) {
+ value = p.to.subtract(p.from).multiplyBy(percentComplete).add(p.from);
+ setters[prop](this._el, value);
+ } else {
+ this._el.style[prop] =
+ ((p.to - p.from) * percentComplete + p.from) + p.unit;
+ }
+ }
+ }
+ this.fire('step');
+ },
+
+ _complete: function () {
+ clearInterval(this._timer);
+ this.fire('end');
+ },
+
+ _cubicBezier: function (t) {
+ var a = Math.pow(1 - t, 3),
+ b = 3 * Math.pow(1 - t, 2) * t,
+ c = 3 * (1 - t) * Math.pow(t, 2),
+ d = Math.pow(t, 3),
+ p1 = this._p1.multiplyBy(a),
+ p2 = this._p2.multiplyBy(b),
+ p3 = this._p3.multiplyBy(c),
+ p4 = this._p4.multiplyBy(d);
+
+ return p1.add(p2).add(p3).add(p4).y;
+ }
+});
+
+
+L.Map.include(!(L.Transition && L.Transition.implemented()) ? {} : {
+ setView: function (center, zoom, forceReset) {
+ zoom = this._limitZoom(zoom);
+ var zoomChanged = (this._zoom !== zoom);
+
+ if (this._loaded && !forceReset && this._layers) {
+ // difference between the new and current centers in pixels
+ var offset = this._getNewTopLeftPoint(center).subtract(this._getTopLeftPoint());
+
+ center = new L.LatLng(center.lat, center.lng);
+
+ var done = (zoomChanged ?
+ !!this._zoomToIfCenterInView && this._zoomToIfCenterInView(center, zoom, offset) :
+ this._panByIfClose(offset));
+
+ // exit if animated pan or zoom started
+ if (done) {
+ return this;
+ }
+ }
+
+ // reset the map view
+ this._resetView(center, zoom);
+
+ return this;
+ },
+
+ panBy: function (offset) {
+ if (!(offset.x || offset.y)) {
+ return this;
+ }
+
+ if (!this._panTransition) {
+ this._panTransition = new L.Transition(this._mapPane, {duration: 0.3});
+
+ this._panTransition.on('step', this._onPanTransitionStep, this);
+ this._panTransition.on('end', this._onPanTransitionEnd, this);
+ }
+ this.fire('movestart');
+
+ this._panTransition.run({
+ position: L.DomUtil.getPosition(this._mapPane).subtract(offset)
+ });
+
+ return this;
+ },
+
+ _onPanTransitionStep: function () {
+ this.fire('move');
+ },
+
+ _onPanTransitionEnd: function () {
+ this.fire('moveend');
+ },
+
+ _panByIfClose: function (offset) {
+ 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.Map.include(!L.DomUtil.TRANSITION ? {} : {
+ _zoomToIfCenterInView: function (center, zoom, centerOffset) {
+
+ if (this._animatingZoom) {
+ return true;
+ }
+ if (!this.options.zoomAnimation) {
+ return false;
+ }
+
+ var zoomDelta = zoom - this._zoom,
+ scale = Math.pow(2, zoomDelta),
+ offset = centerOffset.divideBy(1 - 1 / scale);
+
+ //if offset does not exceed half of the view
+ if (!this._offsetIsWithinView(offset, 1)) {
+ return false;
+ }
+
+ this._mapPane.className += ' leaflet-zoom-anim';
+
+ this
+ .fire('movestart')
+ .fire('zoomstart');
+
+ var centerPoint = this.containerPointToLayerPoint(this.getSize().divideBy(2)),
+ origin = centerPoint.add(offset);
+
+ this._prepareTileBg();
+
+ this._runAnimation(center, zoom, scale, origin);
+
+ return true;
+ },
+
+
+ _runAnimation: function (center, zoom, scale, origin) {
+ this._animatingZoom = true;
+
+ this._animateToCenter = center;
+ this._animateToZoom = zoom;
+
+ var transform = L.DomUtil.TRANSFORM;
+
+ //dumb FireFox hack, I have no idea why this magic zero translate fixes the scale transition problem
+ if (L.Browser.gecko || window.opera) {
+ this._tileBg.style[transform] += ' translate(0,0)';
+ }
+
+ var scaleStr;
+
+ // Android doesn't like translate/scale chains, transformOrigin + scale works better but
+ // it breaks touch zoom which Anroid doesn't support anyway, so that's a really ugly hack
+ // TODO work around this prettier
+ if (L.Browser.android) {
+ this._tileBg.style[transform + 'Origin'] = origin.x + 'px ' + origin.y + 'px';
+ scaleStr = 'scale(' + scale + ')';
+ } else {
+ scaleStr = L.DomUtil.getScaleString(scale, origin);
+ }
+
+ L.Util.falseFn(this._tileBg.offsetWidth); //hack to make sure transform is updated before running animation
+
+ var options = {};
+ options[transform] = this._tileBg.style[transform] + ' ' + scaleStr;
+ this._tileBg.transition.run(options);
+ },
+
+ _prepareTileBg: function () {
+ if (!this._tileBg) {
+ this._tileBg = this._createPane('leaflet-tile-pane', this._mapPane);
+ this._tileBg.style.zIndex = 1;
+ }
+
+ var tilePane = this._tilePane,
+ tileBg = this._tileBg;
+
+ // prepare the background pane to become the main tile pane
+ //tileBg.innerHTML = '';
+ tileBg.style[L.DomUtil.TRANSFORM] = '';
+ tileBg.style.visibility = 'hidden';
+
+ // tells tile layers to reinitialize their containers
+ tileBg.empty = true;
+ tilePane.empty = false;
+
+ this._tilePane = this._panes.tilePane = tileBg;
+ this._tileBg = tilePane;
+
+ if (!this._tileBg.transition) {
+ this._tileBg.transition = new L.Transition(this._tileBg, {duration: 0.3, easing: 'cubic-bezier(0.25,0.1,0.25,0.75)'});
+ this._tileBg.transition.on('end', this._onZoomTransitionEnd, this);
+ }
+
+ this._stopLoadingBgTiles();
+ },
+
+ // stops loading all tiles in the background layer
+ _stopLoadingBgTiles: function () {
+ var tiles = [].slice.call(this._tileBg.getElementsByTagName('img'));
+
+ for (var i = 0, len = tiles.length; i < len; i++) {
+ if (!tiles[i].complete) {
+ // tiles[i].src = '' - evil, doesn't cancel the request!
+ tiles[i].parentNode.removeChild(tiles[i]);
+ tiles[i] = null;
+ }
+ }
+ },
+
+ _onZoomTransitionEnd: function () {
+ this._restoreTileFront();
+
+ L.Util.falseFn(this._tileBg.offsetWidth);
+ this._resetView(this._animateToCenter, this._animateToZoom, true, true);
+
+ this._mapPane.className = this._mapPane.className.replace(' leaflet-zoom-anim', ''); //TODO toggleClass util
+ 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({
+ locate: function (/*Object*/ options) {
+
+ this._locationOptions = options = L.Util.extend({
+ watch: false,
+ setView: false,
+ maxZoom: Infinity,
+ timeout: 10000,
+ maximumAge: 0,
+ enableHighAccuracy: false
+ }, options);
+
+ if (!navigator.geolocation) {
+ return this.fire('locationerror', {
+ code: 0,
+ message: "Geolocation not supported."
+ });
+ }
+
+ 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);
+ }
+ },
+
+ locateAndSetView: function (maxZoom, options) {
+ options = L.Util.extend({
+ maxZoom: maxZoom || Infinity,
+ setView: true
+ }, options);
+ return this.locate(options);
+ },
+
+ _handleGeolocationError: function (error) {
+ var c = error.code,
+ 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);
+
+ var sw = new L.LatLng(lat - latAccuracy, lng - lngAccuracy),
+ ne = new L.LatLng(lat + latAccuracy, lng + lngAccuracy),
+ bounds = new L.LatLngBounds(sw, ne);
+
+ if (this._locationOptions.setView) {
+ var zoom = Math.min(this.getBoundsZoom(bounds), this._locationOptions.maxZoom);
+ this.setView(latlng, zoom);
+ }
+
+ this.fire('locationfound', {
+ latlng: latlng,
+ bounds: bounds,
+ accuracy: pos.coords.accuracy
+ });
+ }
+});
+
+