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Diffstat (limited to 'chimere/static/leaflet/leaflet-src.js')
| -rw-r--r-- | chimere/static/leaflet/leaflet-src.js | 8338 |
1 files changed, 8338 insertions, 0 deletions
diff --git a/chimere/static/leaflet/leaflet-src.js b/chimere/static/leaflet/leaflet-src.js new file mode 100644 index 0000000..13f82bb --- /dev/null +++ b/chimere/static/leaflet/leaflet-src.js @@ -0,0 +1,8338 @@ +/* + Leaflet, a JavaScript library for mobile-friendly interactive maps. http://leafletjs.com + (c) 2010-2013, Vladimir Agafonkin, CloudMade +*/ +(function (window, document, undefined) {/* + * The L namespace contains all Leaflet classes and functions. + * This code allows you to handle any possible namespace conflicts. + */ + +var L, originalL; + +if (typeof exports !== undefined + '') { + L = exports; +} else { + originalL = window.L; + L = {}; + + L.noConflict = function () { + window.L = originalL; + return this; + }; + + window.L = L; +} + +L.version = '0.5.1'; + + +/* + * L.Util contains various utility functions used throughout Leaflet code. + */ + +L.Util = { + extend: function (dest) { // (Object[, Object, ...]) -> + var sources = Array.prototype.slice.call(arguments, 1), + i, j, len, src; + + for (j = 0, len = sources.length; j < len; j++) { + src = sources[j] || {}; + for (i in src) { + if (src.hasOwnProperty(i)) { + dest[i] = src[i]; + } + } + } + return dest; + }, + + bind: function (fn, obj) { // (Function, Object) -> Function + var args = arguments.length > 2 ? Array.prototype.slice.call(arguments, 2) : null; + return function () { + return fn.apply(obj, args || arguments); + }; + }, + + stamp: (function () { + var lastId = 0, key = '_leaflet_id'; + return function (/*Object*/ obj) { + obj[key] = obj[key] || ++lastId; + return obj[key]; + }; + }()), + + limitExecByInterval: function (fn, time, context) { + var lock, execOnUnlock; + + return function wrapperFn() { + var args = arguments; + + if (lock) { + execOnUnlock = true; + return; + } + + lock = true; + + setTimeout(function () { + lock = false; + + if (execOnUnlock) { + wrapperFn.apply(context, args); + execOnUnlock = false; + } + }, time); + + fn.apply(context, args); + }; + }, + + falseFn: function () { + return false; + }, + + formatNum: function (num, digits) { + var pow = Math.pow(10, digits || 5); + return Math.round(num * pow) / pow; + }, + + splitWords: function (str) { + return str.replace(/^\s+|\s+$/g, '').split(/\s+/); + }, + + setOptions: function (obj, options) { + obj.options = L.extend({}, obj.options, options); + return obj.options; + }, + + getParamString: function (obj, existingUrl) { + var params = []; + for (var i in obj) { + if (obj.hasOwnProperty(i)) { + params.push(i + '=' + obj[i]); + } + } + return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + 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; + }); + }, + + isArray: function (obj) { + return (Object.prototype.toString.call(obj) === '[object Array]'); + }, + + emptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=' +}; + +(function () { + + // inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/ + + function getPrefixed(name) { + var i, fn, + prefixes = ['webkit', 'moz', 'o', 'ms']; + + for (i = 0; i < prefixes.length && !fn; i++) { + fn = window[prefixes[i] + name]; + } + + return fn; + } + + var lastTime = 0; + + function timeoutDefer(fn) { + var time = +new Date(), + timeToCall = Math.max(0, 16 - (time - lastTime)); + + lastTime = time + timeToCall; + return window.setTimeout(fn, timeToCall); + } + + var requestFn = window.requestAnimationFrame || + getPrefixed('RequestAnimationFrame') || timeoutDefer; + + var cancelFn = window.cancelAnimationFrame || + getPrefixed('CancelAnimationFrame') || + getPrefixed('CancelRequestAnimationFrame') || + function (id) { window.clearTimeout(id); }; + + + L.Util.requestAnimFrame = function (fn, context, immediate, element) { + fn = L.bind(fn, context); + + if (immediate && requestFn === timeoutDefer) { + fn(); + } else { + return requestFn.call(window, fn, element); + } + }; + + L.Util.cancelAnimFrame = function (id) { + if (id) { + cancelFn.call(window, id); + } + }; + +}()); + +// shortcuts for most used utility functions +L.extend = L.Util.extend; +L.bind = L.Util.bind; +L.stamp = L.Util.stamp; +L.setOptions = L.Util.setOptions; + + +/* + * L.Class powers the OOP facilities of the library. + * Thanks to John Resig and Dean Edwards for inspiration! + */ + +L.Class = function () {}; + +L.Class.extend = function (props) { + + // extended class with the new prototype + var NewClass = function () { + + // call the constructor + if (this.initialize) { + this.initialize.apply(this, arguments); + } + + // call all constructor hooks + if (this._initHooks) { + this.callInitHooks(); + } + }; + + // instantiate class without calling constructor + var F = function () {}; + F.prototype = this.prototype; + + var proto = new F(); + proto.constructor = NewClass; + + NewClass.prototype = proto; + + //inherit parent's statics + for (var i in this) { + if (this.hasOwnProperty(i) && i !== 'prototype') { + NewClass[i] = this[i]; + } + } + + // mix static properties into the class + if (props.statics) { + L.extend(NewClass, props.statics); + delete props.statics; + } + + // mix includes into the prototype + if (props.includes) { + L.Util.extend.apply(null, [proto].concat(props.includes)); + delete props.includes; + } + + // merge options + if (props.options && proto.options) { + props.options = L.extend({}, proto.options, props.options); + } + + // mix given properties into the prototype + L.extend(proto, props); + + proto._initHooks = []; + + var parent = this; + // add method for calling all hooks + proto.callInitHooks = function () { + + if (this._initHooksCalled) { return; } + + if (parent.prototype.callInitHooks) { + parent.prototype.callInitHooks.call(this); + } + + this._initHooksCalled = true; + + for (var i = 0, len = proto._initHooks.length; i < len; i++) { + proto._initHooks[i].call(this); + } + }; + + return NewClass; +}; + + +// method for adding properties to prototype +L.Class.include = function (props) { + L.extend(this.prototype, props); +}; + +// merge new default options to the Class +L.Class.mergeOptions = function (options) { + L.extend(this.prototype.options, options); +}; + +// add a constructor hook +L.Class.addInitHook = function (fn) { // (Function) || (String, args...) + var args = Array.prototype.slice.call(arguments, 1); + + var init = typeof fn === 'function' ? fn : function () { + this[fn].apply(this, args); + }; + + this.prototype._initHooks = this.prototype._initHooks || []; + this.prototype._initHooks.push(init); +}; + + +/* + * L.Mixin.Events is used to add custom events functionality to Leaflet classes. + */ + +var key = '_leaflet_events'; + +L.Mixin = {}; + +L.Mixin.Events = { + + addEventListener: function (types, fn, context) { // (String, Function[, Object]) or (Object[, Object]) + var events = this[key] = this[key] || {}, + type, i, len; + + // Types can be a map of types/handlers + if (typeof types === 'object') { + for (type in types) { + if (types.hasOwnProperty(type)) { + this.addEventListener(type, types[type], fn); + } + } + + return this; + } + + types = L.Util.splitWords(types); + + for (i = 0, len = types.length; i < len; i++) { + events[types[i]] = events[types[i]] || []; + events[types[i]].push({ + action: fn, + context: context || this + }); + } + + return this; + }, + + hasEventListeners: function (type) { // (String) -> Boolean + return (key in this) && (type in this[key]) && (this[key][type].length > 0); + }, + + removeEventListener: function (types, fn, context) { // (String[, Function, Object]) or (Object[, Object]) + var events = this[key], + type, i, len, listeners, j; + + if (typeof types === 'object') { + for (type in types) { + if (types.hasOwnProperty(type)) { + this.removeEventListener(type, types[type], fn); + } + } + + return this; + } + + types = L.Util.splitWords(types); + + for (i = 0, len = types.length; i < len; i++) { + + if (this.hasEventListeners(types[i])) { + listeners = events[types[i]]; + + for (j = listeners.length - 1; j >= 0; j--) { + if ( + (!fn || listeners[j].action === fn) && + (!context || (listeners[j].context === context)) + ) { + listeners.splice(j, 1); + } + } + } + } + + return this; + }, + + fireEvent: function (type, data) { // (String[, Object]) + if (!this.hasEventListeners(type)) { + return this; + } + + var event = L.extend({ + type: type, + target: this + }, data); + + var listeners = this[key][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; + + +/* + * L.Browser handles different browser and feature detections for internal Leaflet use. + */ + +(function () { + + var ie = !!window.ActiveXObject, + ie6 = ie && !window.XMLHttpRequest, + ie7 = ie && !document.querySelector, + + // terrible browser detection to work around Safari / iOS / Android browser bugs + ua = navigator.userAgent.toLowerCase(), + webkit = ua.indexOf('webkit') !== -1, + chrome = ua.indexOf('chrome') !== -1, + android = ua.indexOf('android') !== -1, + android23 = ua.search('android [23]') !== -1, + + mobile = typeof orientation !== undefined + '', + msTouch = window.navigator && window.navigator.msPointerEnabled && + window.navigator.msMaxTouchPoints, + retina = ('devicePixelRatio' in window && window.devicePixelRatio > 1) || + ('matchMedia' in window && window.matchMedia('(min-resolution:144dpi)') && + window.matchMedia('(min-resolution:144dpi)').matches), + + doc = document.documentElement, + ie3d = ie && ('transition' in doc.style), + webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()), + gecko3d = 'MozPerspective' in doc.style, + opera3d = 'OTransition' in doc.style, + any3d = !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d || opera3d); + + + var touch = !window.L_NO_TOUCH && (function () { + + var startName = 'ontouchstart'; + + // IE10+ (We simulate these into touch* events in L.DomEvent and L.DomEvent.MsTouch) or WebKit, etc. + if (msTouch || (startName in doc)) { + return true; + } + + // Firefox/Gecko + var div = document.createElement('div'), + supported = false; + + if (!div.setAttribute) { + return false; + } + div.setAttribute(startName, 'return;'); + + if (typeof div[startName] === 'function') { + supported = true; + } + + div.removeAttribute(startName); + div = null; + + return supported; + }()); + + + L.Browser = { + ie: ie, + ie6: ie6, + ie7: ie7, + webkit: webkit, + + android: android, + android23: android23, + + chrome: chrome, + + ie3d: ie3d, + webkit3d: webkit3d, + gecko3d: gecko3d, + opera3d: opera3d, + any3d: any3d, + + mobile: mobile, + mobileWebkit: mobile && webkit, + mobileWebkit3d: mobile && webkit3d, + mobileOpera: mobile && window.opera, + + touch: touch, + msTouch: msTouch, + + retina: retina + }; + +}()); + + +/* + * L.Point represents a point with x and y coordinates. + */ + +L.Point = function (/*Number*/ x, /*Number*/ y, /*Boolean*/ round) { + this.x = (round ? Math.round(x) : x); + this.y = (round ? Math.round(y) : y); +}; + +L.Point.prototype = { + + clone: function () { + return new L.Point(this.x, this.y); + }, + + // non-destructive, returns a new point + add: function (point) { + return this.clone()._add(L.point(point)); + }, + + // destructive, used directly for performance in situations where it's safe to modify existing point + _add: function (point) { + this.x += point.x; + this.y += point.y; + return this; + }, + + subtract: function (point) { + return this.clone()._subtract(L.point(point)); + }, + + _subtract: function (point) { + this.x -= point.x; + this.y -= point.y; + return this; + }, + + divideBy: function (num) { + return this.clone()._divideBy(num); + }, + + _divideBy: function (num) { + this.x /= num; + this.y /= num; + return this; + }, + + multiplyBy: function (num) { + return this.clone()._multiplyBy(num); + }, + + _multiplyBy: function (num) { + this.x *= num; + this.y *= num; + return this; + }, + + round: function () { + return this.clone()._round(); + }, + + _round: function () { + this.x = Math.round(this.x); + this.y = Math.round(this.y); + return this; + }, + + floor: function () { + return this.clone()._floor(); + }, + + _floor: function () { + this.x = Math.floor(this.x); + this.y = Math.floor(this.y); + return this; + }, + + distanceTo: function (point) { + point = L.point(point); + + var x = point.x - this.x, + y = point.y - this.y; + + return Math.sqrt(x * x + y * y); + }, + + equals: function (point) { + return point.x === this.x && + point.y === this.y; + }, + + toString: function () { + return 'Point(' + + L.Util.formatNum(this.x) + ', ' + + L.Util.formatNum(this.y) + ')'; + } +}; + +L.point = function (x, y, round) { + if (x instanceof L.Point) { + return x; + } + if (L.Util.isArray(x)) { + return new L.Point(x[0], x[1]); + } + if (isNaN(x)) { + return x; + } + return new L.Point(x, y, round); +}; + + +/* + * L.Bounds represents a rectangular area on the screen in pixel coordinates. + */ + +L.Bounds = function (a, b) { //(Point, Point) or Point[] + if (!a) { return; } + + var points = b ? [a, b] : a; + + for (var i = 0, len = points.length; i < len; i++) { + this.extend(points[i]); + } +}; + +L.Bounds.prototype = { + // extend the bounds to contain the given point + extend: function (point) { // (Point) + point = L.point(point); + + if (!this.min && !this.max) { + this.min = point.clone(); + this.max = point.clone(); + } else { + this.min.x = Math.min(point.x, this.min.x); + this.max.x = Math.max(point.x, this.max.x); + this.min.y = Math.min(point.y, this.min.y); + this.max.y = Math.max(point.y, this.max.y); + } + return this; + }, + + getCenter: function (round) { // (Boolean) -> Point + return new L.Point( + (this.min.x + this.max.x) / 2, + (this.min.y + this.max.y) / 2, round); + }, + + getBottomLeft: function () { // -> Point + return new L.Point(this.min.x, this.max.y); + }, + + getTopRight: function () { // -> Point + return new L.Point(this.max.x, this.min.y); + }, + + getSize: function () { + return this.max.subtract(this.min); + }, + + contains: function (obj) { // (Bounds) or (Point) -> Boolean + var min, max; + + if (typeof obj[0] === 'number' || obj instanceof L.Point) { + obj = L.point(obj); + } else { + obj = L.bounds(obj); + } + + if (obj instanceof L.Bounds) { + min = obj.min; + max = obj.max; + } else { + min = max = obj; + } + + return (min.x >= this.min.x) && + (max.x <= this.max.x) && + (min.y >= this.min.y) && + (max.y <= this.max.y); + }, + + intersects: function (bounds) { // (Bounds) -> Boolean + bounds = L.bounds(bounds); + + var min = this.min, + max = this.max, + min2 = bounds.min, + max2 = bounds.max, + xIntersects = (max2.x >= min.x) && (min2.x <= max.x), + yIntersects = (max2.y >= min.y) && (min2.y <= max.y); + + return xIntersects && yIntersects; + }, + + isValid: function () { + return !!(this.min && this.max); + } +}; + +L.bounds = function (a, b) { // (Bounds) or (Point, Point) or (Point[]) + if (!a || a instanceof L.Bounds) { + return a; + } + return new L.Bounds(a, b); +}; + + +/* + * L.Transformation is an utility class to perform simple point transformations through a 2d-matrix. + */ + +L.Transformation = function (a, b, c, d) { + this._a = a; + this._b = b; + this._c = c; + this._d = d; +}; + +L.Transformation.prototype = { + transform: function (point, scale) { // (Point, Number) -> Point + return this._transform(point.clone(), scale); + }, + + // destructive transform (faster) + _transform: function (point, scale) { + scale = scale || 1; + point.x = scale * (this._a * point.x + this._b); + point.y = scale * (this._c * point.y + this._d); + return point; + }, + + untransform: function (point, scale) { + scale = scale || 1; + return new L.Point( + (point.x / scale - this._b) / this._a, + (point.y / scale - this._d) / this._c); + } +}; + + +/* + * L.DomUtil contains various utility functions for working with DOM. + */ + +L.DomUtil = { + get: function (id) { + return (typeof id === 'string' ? document.getElementById(id) : id); + }, + + getStyle: function (el, style) { + + var value = el.style[style]; + + if (!value && el.currentStyle) { + value = el.currentStyle[style]; + } + + if ((!value || value === 'auto') && document.defaultView) { + var css = document.defaultView.getComputedStyle(el, null); + value = css ? css[style] : null; + } + + return value === 'auto' ? null : value; + }, + + getViewportOffset: function (element) { + + var top = 0, + left = 0, + el = element, + docBody = document.body, + pos, + ie7 = L.Browser.ie7; + + do { + top += el.offsetTop || 0; + left += el.offsetLeft || 0; + + //add borders + top += parseInt(L.DomUtil.getStyle(el, "borderTopWidth"), 10) || 0; + left += parseInt(L.DomUtil.getStyle(el, "borderLeftWidth"), 10) || 0; + + pos = L.DomUtil.getStyle(el, 'position'); + + if (el.offsetParent === docBody && pos === 'absolute') { break; } + + if (pos === 'fixed') { + top += docBody.scrollTop || 0; + left += docBody.scrollLeft || 0; + break; + } + el = el.offsetParent; + + } while (el); + + el = element; + + do { + if (el === docBody) { break; } + + top -= el.scrollTop || 0; + left -= el.scrollLeft || 0; + + // webkit (and ie <= 7) handles RTL scrollLeft different to everyone else + // https://code.google.com/p/closure-library/source/browse/trunk/closure/goog/style/bidi.js + if (!L.DomUtil.documentIsLtr() && (L.Browser.webkit || ie7)) { + left += el.scrollWidth - el.clientWidth; + + // ie7 shows the scrollbar by default and provides clientWidth counting it, so we + // need to add it back in if it is visible; scrollbar is on the left as we are RTL + if (ie7 && L.DomUtil.getStyle(el, 'overflow-y') !== 'hidden' && + L.DomUtil.getStyle(el, 'overflow') !== 'hidden') { + left += 17; + } + } + + el = el.parentNode; + } while (el); + + return new L.Point(left, top); + }, + + documentIsLtr: function () { + if (!L.DomUtil._docIsLtrCached) { + L.DomUtil._docIsLtrCached = true; + L.DomUtil._docIsLtr = L.DomUtil.getStyle(document.body, 'direction') === "ltr"; + } + return L.DomUtil._docIsLtr; + }, + + 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 || null; + document.onselectstart = L.Util.falseFn; + } + }, + + enableTextSelection: function () { + if (document.onselectstart === L.Util.falseFn) { + document.onselectstart = this._onselectstart; + this._onselectstart = null; + } + }, + + hasClass: function (el, name) { + return (el.className.length > 0) && + new RegExp("(^|\\s)" + name + "(\\s|$)").test(el.className); + }, + + addClass: function (el, name) { + if (!L.DomUtil.hasClass(el, name)) { + el.className += (el.className ? ' ' : '') + name; + } + }, + + removeClass: function (el, name) { + + function replaceFn(w, match) { + if (match === name) { return ''; } + return w; + } + + el.className = el.className + .replace(/(\S+)\s*/g, replaceFn) + .replace(/(^\s+|\s+$)/, ''); + }, + + setOpacity: function (el, value) { + + if ('opacity' in el.style) { + el.style.opacity = value; + + } else if ('filter' in el.style) { + + var filter = false, + filterName = 'DXImageTransform.Microsoft.Alpha'; + + // filters collection throws an error if we try to retrieve a filter that doesn't exist + try { filter = el.filters.item(filterName); } catch (e) {} + + value = Math.round(value * 100); + + if (filter) { + filter.Enabled = (value !== 100); + filter.Opacity = value; + } else { + el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')'; + } + } + }, + + testProp: function (props) { + + var style = document.documentElement.style; + + for (var i = 0; i < props.length; i++) { + if (props[i] in style) { + return props[i]; + } + } + return false; + }, + + getTranslateString: function (point) { + // on WebKit browsers (Chrome/Safari/iOS Safari/Android) using translate3d instead of translate + // makes animation smoother as it ensures HW accel is used. Firefox 13 doesn't care + // (same speed either way), Opera 12 doesn't support translate3d + + var is3d = L.Browser.webkit3d, + open = 'translate' + (is3d ? '3d' : '') + '(', + close = (is3d ? ',0' : '') + ')'; + + return open + point.x + 'px,' + point.y + 'px' + close; + }, + + getScaleString: function (scale, origin) { + + var preTranslateStr = L.DomUtil.getTranslateString(origin.add(origin.multiplyBy(-1 * scale))), + scaleStr = ' scale(' + scale + ') '; + + return preTranslateStr + scaleStr; + }, + + setPosition: function (el, point, disable3D) { // (HTMLElement, Point[, Boolean]) + + el._leaflet_pos = point; + + if (!disable3D && L.Browser.any3d) { + el.style[L.DomUtil.TRANSFORM] = L.DomUtil.getTranslateString(point); + + // workaround for Android 2/3 stability (https://github.com/CloudMade/Leaflet/issues/69) + if (L.Browser.mobileWebkit3d) { + el.style.WebkitBackfaceVisibility = 'hidden'; + } + } else { + el.style.left = point.x + 'px'; + el.style.top = point.y + 'px'; + } + }, + + getPosition: function (el) { + // this method is only used for elements previously positioned using setPosition, + // so it's safe to cache the position for performance + return el._leaflet_pos; + } +}; + + +// prefix style property names + +L.DomUtil.TRANSFORM = L.DomUtil.testProp( + ['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']); + +// webkitTransition comes first because some browser versions that drop vendor prefix don't do +// the same for the transitionend event, in particular the Android 4.1 stock browser + +L.DomUtil.TRANSITION = L.DomUtil.testProp( + ['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']); + +L.DomUtil.TRANSITION_END = + L.DomUtil.TRANSITION === 'webkitTransition' || L.DomUtil.TRANSITION === 'OTransition' ? + L.DomUtil.TRANSITION + 'End' : 'transitionend'; + + +/* + * L.LatLng represents a geographical point with latitude and longitude coordinates. + */ + +L.LatLng = function (rawLat, rawLng) { // (Number, Number) + var lat = parseFloat(rawLat), + lng = parseFloat(rawLng); + + if (isNaN(lat) || isNaN(lng)) { + throw new Error('Invalid LatLng object: (' + rawLat + ', ' + rawLng + ')'); + } + + this.lat = lat; + this.lng = lng; +}; + +L.extend(L.LatLng, { + DEG_TO_RAD: Math.PI / 180, + RAD_TO_DEG: 180 / Math.PI, + MAX_MARGIN: 1.0E-9 // max margin of error for the "equals" check +}); + +L.LatLng.prototype = { + equals: function (obj) { // (LatLng) -> Boolean + if (!obj) { return false; } + + obj = L.latLng(obj); + + var margin = Math.max( + Math.abs(this.lat - obj.lat), + Math.abs(this.lng - obj.lng)); + + return margin <= L.LatLng.MAX_MARGIN; + }, + + toString: function (precision) { // (Number) -> String + return 'LatLng(' + + L.Util.formatNum(this.lat, precision) + ', ' + + L.Util.formatNum(this.lng, precision) + ')'; + }, + + // Haversine distance formula, see http://en.wikipedia.org/wiki/Haversine_formula + // TODO move to projection code, LatLng shouldn't know about Earth + distanceTo: function (other) { // (LatLng) -> Number + other = L.latLng(other); + + var R = 6378137, // earth radius in meters + d2r = L.LatLng.DEG_TO_RAD, + dLat = (other.lat - this.lat) * d2r, + dLon = (other.lng - this.lng) * d2r, + lat1 = this.lat * d2r, + lat2 = other.lat * d2r, + sin1 = Math.sin(dLat / 2), + sin2 = Math.sin(dLon / 2); + + var a = sin1 * sin1 + sin2 * sin2 * Math.cos(lat1) * Math.cos(lat2); + + return R * 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a)); + }, + + wrap: function (a, b) { // (Number, Number) -> LatLng + var lng = this.lng; + + a = a || -180; + b = b || 180; + + lng = (lng + b) % (b - a) + (lng < a || lng === b ? b : a); + + return new L.LatLng(this.lat, lng); + } +}; + +L.latLng = function (a, b) { // (LatLng) or ([Number, Number]) or (Number, Number) + if (a instanceof L.LatLng) { + return a; + } + if (L.Util.isArray(a)) { + return new L.LatLng(a[0], a[1]); + } + if (isNaN(a)) { + return a; + } + return new L.LatLng(a, b); +}; + + + +/* + * L.LatLngBounds represents a rectangular area on the map in geographical coordinates. + */ + +L.LatLngBounds = function (southWest, northEast) { // (LatLng, LatLng) or (LatLng[]) + if (!southWest) { return; } + + var latlngs = northEast ? [southWest, northEast] : southWest; + + for (var i = 0, len = latlngs.length; i < len; i++) { + this.extend(latlngs[i]); + } +}; + +L.LatLngBounds.prototype = { + // extend the bounds to contain the given point or bounds + extend: function (obj) { // (LatLng) or (LatLngBounds) + if (typeof obj[0] === 'number' || typeof obj[0] === 'string' || obj instanceof L.LatLng) { + obj = L.latLng(obj); + } else { + obj = L.latLngBounds(obj); + } + + if (obj instanceof L.LatLng) { + if (!this._southWest && !this._northEast) { + this._southWest = new L.LatLng(obj.lat, obj.lng); + this._northEast = new L.LatLng(obj.lat, obj.lng); + } else { + this._southWest.lat = Math.min(obj.lat, this._southWest.lat); + this._southWest.lng = Math.min(obj.lng, this._southWest.lng); + + this._northEast.lat = Math.max(obj.lat, this._northEast.lat); + this._northEast.lng = Math.max(obj.lng, this._northEast.lng); + } + } else if (obj instanceof L.LatLngBounds) { + this.extend(obj._southWest); + this.extend(obj._northEast); + } + return this; + }, + + // extend the bounds by a percentage + pad: function (bufferRatio) { // (Number) -> LatLngBounds + var sw = this._southWest, + ne = this._northEast, + heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio, + widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio; + + return new L.LatLngBounds( + new L.LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer), + new L.LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer)); + }, + + getCenter: function () { // -> LatLng + return new L.LatLng( + (this._southWest.lat + this._northEast.lat) / 2, + (this._southWest.lng + this._northEast.lng) / 2); + }, + + getSouthWest: function () { + return this._southWest; + }, + + getNorthEast: function () { + return this._northEast; + }, + + getNorthWest: function () { + return new L.LatLng(this._northEast.lat, this._southWest.lng); + }, + + getSouthEast: function () { + return new L.LatLng(this._southWest.lat, this._northEast.lng); + }, + + contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean + if (typeof obj[0] === 'number' || obj instanceof L.LatLng) { + obj = L.latLng(obj); + } else { + obj = L.latLngBounds(obj); + } + + var sw = this._southWest, + ne = this._northEast, + sw2, ne2; + + if (obj instanceof L.LatLngBounds) { + sw2 = obj.getSouthWest(); + ne2 = obj.getNorthEast(); + } else { + sw2 = ne2 = obj; + } + + return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) && + (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng); + }, + + intersects: function (bounds) { // (LatLngBounds) + bounds = L.latLngBounds(bounds); + + var sw = this._southWest, + ne = this._northEast, + sw2 = bounds.getSouthWest(), + ne2 = bounds.getNorthEast(), + + latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat), + lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng); + + return latIntersects && lngIntersects; + }, + + toBBoxString: function () { + var sw = this._southWest, + ne = this._northEast; + + return [sw.lng, sw.lat, ne.lng, ne.lat].join(','); + }, + + equals: function (bounds) { // (LatLngBounds) + if (!bounds) { return false; } + + bounds = L.latLngBounds(bounds); + + return this._southWest.equals(bounds.getSouthWest()) && + this._northEast.equals(bounds.getNorthEast()); + }, + + isValid: function () { + return !!(this._southWest && this._northEast); + } +}; + +//TODO International date line? + +L.latLngBounds = function (a, b) { // (LatLngBounds) or (LatLng, LatLng) + if (!a || a instanceof L.LatLngBounds) { + return a; + } + return new L.LatLngBounds(a, b); +}; + + +/* + * L.Projection contains various geographical projections used by CRS classes. + */ + +L.Projection = {}; + + +/* + * Spherical Mercator is the most popular map projection, used by EPSG:3857 CRS used by default. + */ + +L.Projection.SphericalMercator = { + MAX_LATITUDE: 85.0511287798, + + project: function (latlng) { // (LatLng) -> Point + var d = L.LatLng.DEG_TO_RAD, + max = this.MAX_LATITUDE, + lat = Math.max(Math.min(max, latlng.lat), -max), + x = latlng.lng * d, + y = lat * d; + + y = Math.log(Math.tan((Math.PI / 4) + (y / 2))); + + return new L.Point(x, y); + }, + + unproject: function (point) { // (Point, Boolean) -> LatLng + var d = L.LatLng.RAD_TO_DEG, + lng = point.x * d, + lat = (2 * Math.atan(Math.exp(point.y)) - (Math.PI / 2)) * d; + + return new L.LatLng(lat, lng); + } +}; + + +/* + * Simple equirectangular (Plate Carree) projection, used by CRS like EPSG:4326 and Simple. + */ + +L.Projection.LonLat = { + project: function (latlng) { + return new L.Point(latlng.lng, latlng.lat); + }, + + unproject: function (point) { + return new L.LatLng(point.y, point.x); + } +}; + + +/* + * L.CRS is a base object for all defined CRS (Coordinate Reference Systems) in Leaflet. + */ + +L.CRS = { + latLngToPoint: function (latlng, zoom) { // (LatLng, Number) -> Point + var projectedPoint = this.projection.project(latlng), + scale = this.scale(zoom); + + return this.transformation._transform(projectedPoint, scale); + }, + + pointToLatLng: function (point, zoom) { // (Point, Number[, Boolean]) -> LatLng + var scale = this.scale(zoom), + untransformedPoint = this.transformation.untransform(point, scale); + + return this.projection.unproject(untransformedPoint); + }, + + project: function (latlng) { + return this.projection.project(latlng); + }, + + scale: function (zoom) { + return 256 * Math.pow(2, zoom); + } +}; + + +/* + * A simple CRS that can be used for flat non-Earth maps like panoramas or game maps. + */ + +L.CRS.Simple = L.extend({}, L.CRS, { + projection: L.Projection.LonLat, + transformation: new L.Transformation(1, 0, -1, 0), + + scale: function (zoom) { + return Math.pow(2, zoom); + } +}); + + +/* + * L.CRS.EPSG3857 (Spherical Mercator) is the most common CRS for web mapping + * and is used by Leaflet by default. + */ + +L.CRS.EPSG3857 = L.extend({}, L.CRS, { + 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.extend({}, L.CRS.EPSG3857, { + code: 'EPSG:900913' +}); + + +/* + * L.CRS.EPSG4326 is a CRS popular among advanced GIS specialists. + */ + +L.CRS.EPSG4326 = L.extend({}, L.CRS, { + code: 'EPSG:4326', + + projection: L.Projection.LonLat, + transformation: new L.Transformation(1 / 360, 0.5, -1 / 360, 0.5) +}); + + +/* + * L.Map is the central class of the API - it is used to create a map. + */ + +L.Map = L.Class.extend({ + + includes: L.Mixin.Events, + + options: { + crs: L.CRS.EPSG3857, + + /* + center: LatLng, + zoom: Number, + layers: Array, + */ + + fadeAnimation: L.DomUtil.TRANSITION && !L.Browser.android23, + trackResize: true, + markerZoomAnimation: L.DomUtil.TRANSITION && L.Browser.any3d + }, + + initialize: function (id, options) { // (HTMLElement or String, Object) + options = L.setOptions(this, options); + + this._initContainer(id); + this._initLayout(); + this.callInitHooks(); + this._initEvents(); + + if (options.maxBounds) { + this.setMaxBounds(options.maxBounds); + } + + if (options.center && options.zoom !== undefined) { + this.setView(L.latLng(options.center), options.zoom, true); + } + + this._initLayers(options.layers); + }, + + + // public methods that modify map state + + // replaced by animation-powered implementation in Map.PanAnimation.js + setView: function (center, zoom) { + this._resetView(L.latLng(center), this._limitZoom(zoom)); + return this; + }, + + setZoom: function (zoom) { // (Number) + return this.setView(this.getCenter(), zoom); + }, + + zoomIn: function (delta) { + return this.setZoom(this._zoom + (delta || 1)); + }, + + zoomOut: function (delta) { + return this.setZoom(this._zoom - (delta || 1)); + }, + + fitBounds: function (bounds) { // (LatLngBounds) + var zoom = this.getBoundsZoom(bounds); + return this.setView(L.latLngBounds(bounds).getCenter(), zoom); + }, + + fitWorld: function () { + var sw = new L.LatLng(-60, -170), + ne = new L.LatLng(85, 179); + + return this.fitBounds(new L.LatLngBounds(sw, ne)); + }, + + panTo: function (center) { // (LatLng) + return this.setView(center, this._zoom); + }, + + panBy: function (offset) { // (Point) + // replaced with animated panBy in Map.Animation.js + this.fire('movestart'); + + this._rawPanBy(L.point(offset)); + + this.fire('move'); + return this.fire('moveend'); + }, + + setMaxBounds: function (bounds) { + bounds = L.latLngBounds(bounds); + + this.options.maxBounds = bounds; + + if (!bounds) { + this._boundsMinZoom = null; + return this; + } + + var minZoom = this.getBoundsZoom(bounds, true); + + this._boundsMinZoom = minZoom; + + if (this._loaded) { + if (this._zoom < minZoom) { + this.setView(bounds.getCenter(), minZoom); + } else { + this.panInsideBounds(bounds); + } + } + + return this; + }, + + panInsideBounds: function (bounds) { + bounds = L.latLngBounds(bounds); + + var viewBounds = this.getBounds(), + viewSw = this.project(viewBounds.getSouthWest()), + viewNe = this.project(viewBounds.getNorthEast()), + sw = this.project(bounds.getSouthWest()), + ne = this.project(bounds.getNorthEast()), + dx = 0, + dy = 0; + + if (viewNe.y < ne.y) { // north + dy = ne.y - viewNe.y; + } + if (viewNe.x > ne.x) { // east + dx = ne.x - viewNe.x; + } + if (viewSw.y > sw.y) { // south + dy = sw.y - viewSw.y; + } + if (viewSw.x < sw.x) { // west + dx = sw.x - viewSw.x; + } + + return this.panBy(new L.Point(dx, dy, true)); + }, + + addLayer: function (layer) { + // TODO method is too big, refactor + + var id = L.stamp(layer); + + if (this._layers[id]) { return this; } + + this._layers[id] = layer; + + // TODO getMaxZoom, getMinZoom in ILayer (instead of options) + if (layer.options && (!isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom))) { + this._zoomBoundLayers[id] = layer; + this._updateZoomLevels(); + } + + // TODO looks ugly, refactor!!! + if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) { + this._tileLayersNum++; + this._tileLayersToLoad++; + layer.on('load', this._onTileLayerLoad, this); + } + + this.whenReady(function () { + layer.onAdd(this); + this.fire('layeradd', {layer: layer}); + }, this); + + return this; + }, + + removeLayer: function (layer) { + var id = L.stamp(layer); + + if (!this._layers[id]) { return; } + + layer.onRemove(this); + + delete this._layers[id]; + if (this._zoomBoundLayers[id]) { + delete this._zoomBoundLayers[id]; + this._updateZoomLevels(); + } + + // TODO looks ugly, refactor + if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) { + this._tileLayersNum--; + this._tileLayersToLoad--; + layer.off('load', this._onTileLayerLoad, this); + } + + return this.fire('layerremove', {layer: layer}); + }, + + hasLayer: function (layer) { + var id = L.stamp(layer); + return this._layers.hasOwnProperty(id); + }, + + invalidateSize: function (animate) { + var oldSize = this.getSize(); + + this._sizeChanged = true; + + if (this.options.maxBounds) { + this.setMaxBounds(this.options.maxBounds); + } + + if (!this._loaded) { return this; } + + var offset = oldSize._subtract(this.getSize())._divideBy(2)._round(); + + if (animate === true) { + this.panBy(offset); + } else { + this._rawPanBy(offset); + + this.fire('move'); + + clearTimeout(this._sizeTimer); + this._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200); + } + return this; + }, + + // TODO handler.addTo + addHandler: function (name, HandlerClass) { + if (!HandlerClass) { return; } + + this[name] = new HandlerClass(this); + + if (this.options[name]) { + this[name].enable(); + } + + return this; + }, + + + // public methods for getting map state + + getCenter: function () { // (Boolean) -> LatLng + return this.layerPointToLatLng(this._getCenterLayerPoint()); + }, + + getZoom: function () { + return this._zoom; + }, + + getBounds: function () { + var bounds = this.getPixelBounds(), + sw = this.unproject(bounds.getBottomLeft()), + ne = this.unproject(bounds.getTopRight()); + + return new L.LatLngBounds(sw, ne); + }, + + getMinZoom: function () { + var z1 = this.options.minZoom || 0, + z2 = this._layersMinZoom || 0, + z3 = this._boundsMinZoom || 0; + + return Math.max(z1, z2, z3); + }, + + getMaxZoom: function () { + var z1 = this.options.maxZoom === undefined ? Infinity : this.options.maxZoom, + z2 = this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom; + + return Math.min(z1, z2); + }, + + getBoundsZoom: function (bounds, inside) { // (LatLngBounds, Boolean) -> Number + bounds = L.latLngBounds(bounds); + + var size = this.getSize(), + zoom = this.options.minZoom || 0, + maxZoom = this.getMaxZoom(), + ne = bounds.getNorthEast(), + sw = bounds.getSouthWest(), + boundsSize, + nePoint, + swPoint, + zoomNotFound = true; + + if (inside) { + zoom--; + } + + do { + zoom++; + nePoint = this.project(ne, zoom); + swPoint = this.project(sw, zoom); + + boundsSize = new L.Point( + Math.abs(nePoint.x - swPoint.x), + Math.abs(swPoint.y - nePoint.y)); + + if (!inside) { + zoomNotFound = boundsSize.x <= size.x && boundsSize.y <= size.y; + } else { + zoomNotFound = boundsSize.x < size.x || boundsSize.y < size.y; + } + } while (zoomNotFound && zoom <= maxZoom); + + if (zoomNotFound && inside) { + return null; + } + + return inside ? zoom : zoom - 1; + }, + + getSize: function () { + if (!this._size || this._sizeChanged) { + this._size = new L.Point( + this._container.clientWidth, + this._container.clientHeight); + + this._sizeChanged = false; + } + return this._size.clone(); + }, + + getPixelBounds: function () { + var topLeftPoint = this._getTopLeftPoint(); + return new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize())); + }, + + getPixelOrigin: function () { + return this._initialTopLeftPoint; + }, + + getPanes: function () { + return this._panes; + }, + + getContainer: function () { + return this._container; + }, + + + // TODO replace with universal implementation after refactoring projections + + getZoomScale: function (toZoom) { + var crs = this.options.crs; + return crs.scale(toZoom) / crs.scale(this._zoom); + }, + + getScaleZoom: function (scale) { + return this._zoom + (Math.log(scale) / Math.LN2); + }, + + + // conversion methods + + project: function (latlng, zoom) { // (LatLng[, Number]) -> Point + zoom = zoom === undefined ? this._zoom : zoom; + return this.options.crs.latLngToPoint(L.latLng(latlng), zoom); + }, + + unproject: function (point, zoom) { // (Point[, Number]) -> LatLng + zoom = zoom === undefined ? this._zoom : zoom; + return this.options.crs.pointToLatLng(L.point(point), zoom); + }, + + layerPointToLatLng: function (point) { // (Point) + var projectedPoint = L.point(point).add(this._initialTopLeftPoint); + return this.unproject(projectedPoint); + }, + + latLngToLayerPoint: function (latlng) { // (LatLng) + var projectedPoint = this.project(L.latLng(latlng))._round(); + return projectedPoint._subtract(this._initialTopLeftPoint); + }, + + containerPointToLayerPoint: function (point) { // (Point) + return L.point(point).subtract(this._getMapPanePos()); + }, + + layerPointToContainerPoint: function (point) { // (Point) + return L.point(point).add(this._getMapPanePos()); + }, + + containerPointToLatLng: function (point) { + var layerPoint = this.containerPointToLayerPoint(L.point(point)); + return this.layerPointToLatLng(layerPoint); + }, + + latLngToContainerPoint: function (latlng) { + return this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng))); + }, + + mouseEventToContainerPoint: function (e) { // (MouseEvent) + return L.DomEvent.getMousePosition(e, this._container); + }, + + mouseEventToLayerPoint: function (e) { // (MouseEvent) + return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e)); + }, + + mouseEventToLatLng: function (e) { // (MouseEvent) + return this.layerPointToLatLng(this.mouseEventToLayerPoint(e)); + }, + + + // map initialization methods + + _initContainer: function (id) { + var container = this._container = L.DomUtil.get(id); + if (container._leaflet) { + throw new Error("Map container is already initialized."); + } + + container._leaflet = true; + }, + + _initLayout: function () { + var container = this._container; + + L.DomUtil.addClass(container, 'leaflet-container'); + + if (L.Browser.touch) { + L.DomUtil.addClass(container, 'leaflet-touch'); + } + + if (this.options.fadeAnimation) { + L.DomUtil.addClass(container, 'leaflet-fade-anim'); + } + + var position = L.DomUtil.getStyle(container, 'position'); + + if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') { + container.style.position = 'relative'; + } + + this._initPanes(); + + if (this._initControlPos) { + this._initControlPos(); + } + }, + + _initPanes: function () { + var panes = this._panes = {}; + + this._mapPane = panes.mapPane = this._createPane('leaflet-map-pane', this._container); + + this._tilePane = panes.tilePane = this._createPane('leaflet-tile-pane', this._mapPane); + panes.objectsPane = this._createPane('leaflet-objects-pane', this._mapPane); + panes.shadowPane = this._createPane('leaflet-shadow-pane'); + panes.overlayPane = this._createPane('leaflet-overlay-pane'); + panes.markerPane = this._createPane('leaflet-marker-pane'); + panes.popupPane = this._createPane('leaflet-popup-pane'); + + var zoomHide = ' leaflet-zoom-hide'; + + if (!this.options.markerZoomAnimation) { + L.DomUtil.addClass(panes.markerPane, zoomHide); + L.DomUtil.addClass(panes.shadowPane, zoomHide); + L.DomUtil.addClass(panes.popupPane, zoomHide); + } + }, + + _createPane: function (className, container) { + return L.DomUtil.create('div', className, container || this._panes.objectsPane); + }, + + _initLayers: function (layers) { + layers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : []; + + this._layers = {}; + this._zoomBoundLayers = {}; + this._tileLayersNum = 0; + + var i, len; + + for (i = 0, len = layers.length; i < len; i++) { + this.addLayer(layers[i]); + } + }, + + + // private methods that modify map state + + _resetView: function (center, zoom, preserveMapOffset, afterZoomAnim) { + + var zoomChanged = (this._zoom !== zoom); + + if (!afterZoomAnim) { + this.fire('movestart'); + + if (zoomChanged) { + this.fire('zoomstart'); + } + } + + this._zoom = zoom; + + this._initialTopLeftPoint = this._getNewTopLeftPoint(center); + + if (!preserveMapOffset) { + L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0)); + } else { + this._initialTopLeftPoint._add(this._getMapPanePos()); + } + + this._tileLayersToLoad = this._tileLayersNum; + + var loading = !this._loaded; + this._loaded = true; + + this.fire('viewreset', {hard: !preserveMapOffset}); + + this.fire('move'); + + if (zoomChanged || afterZoomAnim) { + this.fire('zoomend'); + } + + this.fire('moveend', {hard: !preserveMapOffset}); + + if (loading) { + this.fire('load'); + } + }, + + _rawPanBy: function (offset) { + L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset)); + }, + + _updateZoomLevels: function () { + var i, + minZoom = Infinity, + maxZoom = -Infinity; + + for (i in this._zoomBoundLayers) { + if (this._zoomBoundLayers.hasOwnProperty(i)) { + var layer = this._zoomBoundLayers[i]; + if (!isNaN(layer.options.minZoom)) { + minZoom = Math.min(minZoom, layer.options.minZoom); + } + if (!isNaN(layer.options.maxZoom)) { + maxZoom = Math.max(maxZoom, layer.options.maxZoom); + } + } + } + + if (i === undefined) { // we have no tilelayers + this._layersMaxZoom = this._layersMinZoom = undefined; + } else { + this._layersMaxZoom = maxZoom; + this._layersMinZoom = minZoom; + } + }, + + // map events + + _initEvents: function () { + if (!L.DomEvent) { return; } + + L.DomEvent.on(this._container, 'click', this._onMouseClick, this); + + var events = ['dblclick', 'mousedown', 'mouseup', 'mouseenter', + 'mouseleave', 'mousemove', 'contextmenu'], + i, len; + + for (i = 0, len = events.length; i < len; i++) { + L.DomEvent.on(this._container, events[i], this._fireMouseEvent, this); + } + + if (this.options.trackResize) { + L.DomEvent.on(window, 'resize', this._onResize, this); + } + }, + + _onResize: function () { + L.Util.cancelAnimFrame(this._resizeRequest); + this._resizeRequest = L.Util.requestAnimFrame( + this.invalidateSize, this, false, this._container); + }, + + _onMouseClick: function (e) { + if (!this._loaded || (this.dragging && this.dragging.moved())) { return; } + + this.fire('preclick'); + this._fireMouseEvent(e); + }, + + _fireMouseEvent: function (e) { + if (!this._loaded) { return; } + + var type = e.type; + + type = (type === 'mouseenter' ? 'mouseover' : (type === 'mouseleave' ? 'mouseout' : type)); + + if (!this.hasEventListeners(type)) { return; } + + if (type === 'contextmenu') { + L.DomEvent.preventDefault(e); + } + + var containerPoint = this.mouseEventToContainerPoint(e), + layerPoint = this.containerPointToLayerPoint(containerPoint), + latlng = this.layerPointToLatLng(layerPoint); + + this.fire(type, { + latlng: latlng, + layerPoint: layerPoint, + containerPoint: containerPoint, + originalEvent: e + }); + }, + + _onTileLayerLoad: function () { + // TODO super-ugly, refactor!!! + // clear scaled tiles after all new tiles are loaded (for performance) + this._tileLayersToLoad--; + if (this._tileLayersNum && !this._tileLayersToLoad && this._tileBg) { + clearTimeout(this._clearTileBgTimer); + this._clearTileBgTimer = setTimeout(L.bind(this._clearTileBg, this), 500); + } + }, + + whenReady: function (callback, context) { + if (this._loaded) { + callback.call(context || this, this); + } else { + this.on('load', callback, context); + } + return this; + }, + + + // private methods for getting map state + + _getMapPanePos: function () { + return L.DomUtil.getPosition(this._mapPane); + }, + + _getTopLeftPoint: function () { + if (!this._loaded) { + throw new Error('Set map center and zoom first.'); + } + + return this._initialTopLeftPoint.subtract(this._getMapPanePos()); + }, + + _getNewTopLeftPoint: function (center, zoom) { + var viewHalf = this.getSize()._divideBy(2); + // TODO round on display, not calculation to increase precision? + return this.project(center, zoom)._subtract(viewHalf)._round(); + }, + + _latLngToNewLayerPoint: function (latlng, newZoom, newCenter) { + var topLeft = this._getNewTopLeftPoint(newCenter, newZoom).add(this._getMapPanePos()); + return this.project(latlng, newZoom)._subtract(topLeft); + }, + + _getCenterLayerPoint: function () { + return this.containerPointToLayerPoint(this.getSize()._divideBy(2)); + }, + + _getCenterOffset: function (center) { + return this.latLngToLayerPoint(center).subtract(this._getCenterLayerPoint()); + }, + + _limitZoom: function (zoom) { + var min = this.getMinZoom(), + max = this.getMaxZoom(); + + return Math.max(min, Math.min(max, zoom)); + } +}); + +L.map = function (id, options) { + return new L.Map(id, options); +}; + + +/* + * Mercator projection that takes into account that the Earth is not a perfect sphere. + * Less popular than spherical mercator; used by projections like EPSG:3395. + */ + +L.Projection.Mercator = { + MAX_LATITUDE: 85.0840591556, + + R_MINOR: 6356752.3142, + R_MAJOR: 6378137, + + project: function (latlng) { // (LatLng) -> Point + var d = L.LatLng.DEG_TO_RAD, + max = this.MAX_LATITUDE, + lat = Math.max(Math.min(max, latlng.lat), -max), + r = this.R_MAJOR, + r2 = this.R_MINOR, + x = latlng.lng * d * r, + y = lat * d, + tmp = r2 / r, + eccent = Math.sqrt(1.0 - tmp * tmp), + con = eccent * Math.sin(y); + + con = Math.pow((1 - con) / (1 + con), eccent * 0.5); + + var ts = Math.tan(0.5 * ((Math.PI * 0.5) - y)) / con; + y = -r2 * Math.log(ts); + + return new L.Point(x, y); + }, + + unproject: function (point) { // (Point, Boolean) -> LatLng + var d = L.LatLng.RAD_TO_DEG, + r = this.R_MAJOR, + r2 = this.R_MINOR, + lng = point.x * d / r, + tmp = r2 / r, + eccent = Math.sqrt(1 - (tmp * tmp)), + ts = Math.exp(- point.y / r2), + phi = (Math.PI / 2) - 2 * Math.atan(ts), + numIter = 15, + tol = 1e-7, + i = numIter, + dphi = 0.1, + con; + + while ((Math.abs(dphi) > tol) && (--i > 0)) { + con = eccent * Math.sin(phi); + dphi = (Math.PI / 2) - 2 * Math.atan(ts * + Math.pow((1.0 - con) / (1.0 + con), 0.5 * eccent)) - phi; + phi += dphi; + } + + return new L.LatLng(phi * d, lng); + } +}; + + + +L.CRS.EPSG3395 = L.extend({}, L.CRS, { + code: 'EPSG:3395', + + projection: L.Projection.Mercator, + + transformation: (function () { + var m = L.Projection.Mercator, + r = m.R_MAJOR, + r2 = m.R_MINOR; + + return new L.Transformation(0.5 / (Math.PI * r), 0.5, -0.5 / (Math.PI * r2), 0.5); + }()) +}); + + +/* + * L.TileLayer is used for standard xyz-numbered tile layers. + */ + +L.TileLayer = L.Class.extend({ + includes: L.Mixin.Events, + + options: { + minZoom: 0, + maxZoom: 18, + tileSize: 256, + subdomains: 'abc', + errorTileUrl: '', + attribution: '', + zoomOffset: 0, + opacity: 1, + /* (undefined works too) + zIndex: null, + tms: false, + continuousWorld: false, + noWrap: false, + zoomReverse: false, + detectRetina: false, + reuseTiles: false, + */ + unloadInvisibleTiles: L.Browser.mobile, + updateWhenIdle: L.Browser.mobile + }, + + initialize: function (url, options) { + options = L.setOptions(this, options); + + // detecting retina displays, adjusting tileSize and zoom levels + if (options.detectRetina && L.Browser.retina && options.maxZoom > 0) { + + options.tileSize = Math.floor(options.tileSize / 2); + options.zoomOffset++; + + if (options.minZoom > 0) { + options.minZoom--; + } + this.options.maxZoom--; + } + + this._url = url; + + var subdomains = this.options.subdomains; + + if (typeof subdomains === 'string') { + this.options.subdomains = subdomains.split(''); + } + }, + + onAdd: function (map) { + this._map = map; + + // create a container div for tiles + this._initContainer(); + + // create an image to clone for tiles + this._createTileProto(); + + // set up events + map.on({ + 'viewreset': this._resetCallback, + 'moveend': this._update + }, this); + + if (!this.options.updateWhenIdle) { + this._limitedUpdate = L.Util.limitExecByInterval(this._update, 150, this); + map.on('move', this._limitedUpdate, this); + } + + this._reset(); + this._update(); + }, + + addTo: function (map) { + map.addLayer(this); + return this; + }, + + onRemove: function (map) { + this._container.parentNode.removeChild(this._container); + + map.off({ + 'viewreset': this._resetCallback, + 'moveend': this._update + }, this); + + if (!this.options.updateWhenIdle) { + map.off('move', this._limitedUpdate, this); + } + + this._container = null; + this._map = null; + }, + + bringToFront: function () { + var pane = this._map._panes.tilePane; + + if (this._container) { + pane.appendChild(this._container); + this._setAutoZIndex(pane, Math.max); + } + + return this; + }, + + bringToBack: function () { + var pane = this._map._panes.tilePane; + + if (this._container) { + pane.insertBefore(this._container, pane.firstChild); + this._setAutoZIndex(pane, Math.min); + } + + return this; + }, + + getAttribution: function () { + return this.options.attribution; + }, + + setOpacity: function (opacity) { + this.options.opacity = opacity; + + if (this._map) { + this._updateOpacity(); + } + + return this; + }, + + setZIndex: function (zIndex) { + this.options.zIndex = zIndex; + this._updateZIndex(); + + return this; + }, + + setUrl: function (url, noRedraw) { + this._url = url; + + if (!noRedraw) { + this.redraw(); + } + + return this; + }, + + redraw: function () { + if (this._map) { + this._map._panes.tilePane.empty = false; + this._reset(true); + this._update(); + } + return this; + }, + + _updateZIndex: function () { + if (this._container && this.options.zIndex !== undefined) { + this._container.style.zIndex = this.options.zIndex; + } + }, + + _setAutoZIndex: function (pane, compare) { + + var layers = pane.children, + edgeZIndex = -compare(Infinity, -Infinity), // -Infinity for max, Infinity for min + zIndex, i, len; + + for (i = 0, len = layers.length; i < len; i++) { + + if (layers[i] !== this._container) { + zIndex = parseInt(layers[i].style.zIndex, 10); + + if (!isNaN(zIndex)) { + edgeZIndex = compare(edgeZIndex, zIndex); + } + } + } + + this.options.zIndex = this._container.style.zIndex = + (isFinite(edgeZIndex) ? edgeZIndex : 0) + compare(1, -1); + }, + + _updateOpacity: function () { + L.DomUtil.setOpacity(this._container, this.options.opacity); + + // stupid webkit hack to force redrawing of tiles + var i, + tiles = this._tiles; + + if (L.Browser.webkit) { + for (i in tiles) { + if (tiles.hasOwnProperty(i)) { + tiles[i].style.webkitTransform += ' translate(0,0)'; + } + } + } + }, + + _initContainer: function () { + var tilePane = this._map._panes.tilePane; + + if (!this._container || tilePane.empty) { + this._container = L.DomUtil.create('div', 'leaflet-layer'); + + this._updateZIndex(); + + tilePane.appendChild(this._container); + + if (this.options.opacity < 1) { + this._updateOpacity(); + } + } + }, + + _resetCallback: function (e) { + this._reset(e.hard); + }, + + _reset: function (clearOldContainer) { + var tiles = this._tiles; + + for (var key in tiles) { + if (tiles.hasOwnProperty(key)) { + this.fire('tileunload', {tile: tiles[key]}); + } + } + + this._tiles = {}; + this._tilesToLoad = 0; + + if (this.options.reuseTiles) { + this._unusedTiles = []; + } + + if (clearOldContainer && this._container) { + this._container.innerHTML = ""; + } + + this._initContainer(); + }, + + _update: function () { + + if (!this._map) { return; } + + var bounds = this._map.getPixelBounds(), + zoom = this._map.getZoom(), + tileSize = this.options.tileSize; + + if (zoom > this.options.maxZoom || zoom < this.options.minZoom) { + return; + } + + var nwTilePoint = new L.Point( + Math.floor(bounds.min.x / tileSize), + Math.floor(bounds.min.y / tileSize)), + + seTilePoint = new L.Point( + Math.floor(bounds.max.x / tileSize), + Math.floor(bounds.max.y / tileSize)), + + tileBounds = new L.Bounds(nwTilePoint, seTilePoint); + + this._addTilesFromCenterOut(tileBounds); + + if (this.options.unloadInvisibleTiles || this.options.reuseTiles) { + this._removeOtherTiles(tileBounds); + } + }, + + _addTilesFromCenterOut: function (bounds) { + var queue = [], + center = bounds.getCenter(); + + var j, i, point; + + for (j = bounds.min.y; j <= bounds.max.y; j++) { + for (i = bounds.min.x; i <= bounds.max.x; i++) { + point = new L.Point(i, j); + + if (this._tileShouldBeLoaded(point)) { + queue.push(point); + } + } + } + + var tilesToLoad = queue.length; + + if (tilesToLoad === 0) { return; } + + // load tiles in order of their distance to center + queue.sort(function (a, b) { + return a.distanceTo(center) - b.distanceTo(center); + }); + + var fragment = document.createDocumentFragment(); + + // if its the first batch of tiles to load + if (!this._tilesToLoad) { + this.fire('loading'); + } + + this._tilesToLoad += tilesToLoad; + + for (i = 0; i < tilesToLoad; i++) { + this._addTile(queue[i], fragment); + } + + this._container.appendChild(fragment); + }, + + _tileShouldBeLoaded: function (tilePoint) { + if ((tilePoint.x + ':' + tilePoint.y) in this._tiles) { + return false; // already loaded + } + + if (!this.options.continuousWorld) { + var limit = this._getWrapTileNum(); + + if (this.options.noWrap && (tilePoint.x < 0 || tilePoint.x >= limit) || + tilePoint.y < 0 || tilePoint.y >= limit) { + return false; // exceeds world bounds + } + } + + return true; + }, + + _removeOtherTiles: function (bounds) { + var kArr, x, y, key; + + for (key in this._tiles) { + if (this._tiles.hasOwnProperty(key)) { + kArr = key.split(':'); + x = parseInt(kArr[0], 10); + y = parseInt(kArr[1], 10); + + // remove tile if it's out of bounds + if (x < bounds.min.x || x > bounds.max.x || y < bounds.min.y || y > bounds.max.y) { + this._removeTile(key); + } + } + } + }, + + _removeTile: function (key) { + var tile = this._tiles[key]; + + this.fire("tileunload", {tile: tile, url: tile.src}); + + if (this.options.reuseTiles) { + L.DomUtil.removeClass(tile, 'leaflet-tile-loaded'); + this._unusedTiles.push(tile); + + } else if (tile.parentNode === this._container) { + this._container.removeChild(tile); + } + + // for https://github.com/CloudMade/Leaflet/issues/137 + if (!L.Browser.android) { + tile.src = L.Util.emptyImageUrl; + } + + delete this._tiles[key]; + }, + + _addTile: function (tilePoint, container) { + var tilePos = this._getTilePos(tilePoint); + + // get unused tile - or create a new tile + var tile = this._getTile(); + + /* + Chrome 20 layouts much faster with top/left (verify with timeline, frames) + Android 4 browser has display issues with top/left and requires transform instead + Android 3 browser not tested + Android 2 browser requires top/left or tiles disappear on load or first drag + (reappear after zoom) https://github.com/CloudMade/Leaflet/issues/866 + (other browsers don't currently care) - see debug/hacks/jitter.html for an example + */ + L.DomUtil.setPosition(tile, tilePos, L.Browser.chrome || L.Browser.android23); + + this._tiles[tilePoint.x + ':' + tilePoint.y] = tile; + + this._loadTile(tile, tilePoint); + + if (tile.parentNode !== this._container) { + container.appendChild(tile); + } + }, + + _getZoomForUrl: function () { + + var options = this.options, + zoom = this._map.getZoom(); + + if (options.zoomReverse) { + zoom = options.maxZoom - zoom; + } + + return zoom + options.zoomOffset; + }, + + _getTilePos: function (tilePoint) { + var origin = this._map.getPixelOrigin(), + tileSize = this.options.tileSize; + + return tilePoint.multiplyBy(tileSize).subtract(origin); + }, + + // image-specific code (override to implement e.g. Canvas or SVG tile layer) + + getTileUrl: function (tilePoint) { + this._adjustTilePoint(tilePoint); + + return L.Util.template(this._url, L.extend({ + s: this._getSubdomain(tilePoint), + z: this._getZoomForUrl(), + x: tilePoint.x, + y: tilePoint.y + }, this.options)); + }, + + _getWrapTileNum: function () { + // TODO refactor, limit is not valid for non-standard projections + return Math.pow(2, this._getZoomForUrl()); + }, + + _adjustTilePoint: function (tilePoint) { + + var limit = this._getWrapTileNum(); + + // wrap tile coordinates + if (!this.options.continuousWorld && !this.options.noWrap) { + tilePoint.x = ((tilePoint.x % limit) + limit) % limit; + } + + if (this.options.tms) { + tilePoint.y = limit - tilePoint.y - 1; + } + }, + + _getSubdomain: function (tilePoint) { + var index = (tilePoint.x + tilePoint.y) % this.options.subdomains.length; + return this.options.subdomains[index]; + }, + + _createTileProto: function () { + var img = this._tileImg = L.DomUtil.create('img', 'leaflet-tile'); + img.style.width = img.style.height = this.options.tileSize + 'px'; + img.galleryimg = 'no'; + }, + + _getTile: function () { + if (this.options.reuseTiles && this._unusedTiles.length > 0) { + var tile = this._unusedTiles.pop(); + this._resetTile(tile); + return tile; + } + return this._createTile(); + }, + + // Override if data stored on a tile needs to be cleaned up before reuse + _resetTile: function (/*tile*/) {}, + + _createTile: function () { + var tile = this._tileImg.cloneNode(false); + tile.onselectstart = tile.onmousemove = L.Util.falseFn; + return tile; + }, + + _loadTile: function (tile, tilePoint) { + tile._layer = this; + tile.onload = this._tileOnLoad; + tile.onerror = this._tileOnError; + + tile.src = this.getTileUrl(tilePoint); + }, + + _tileLoaded: function () { + this._tilesToLoad--; + if (!this._tilesToLoad) { + this.fire('load'); + } + }, + + _tileOnLoad: function () { + var layer = this._layer; + + //Only if we are loading an actual image + if (this.src !== L.Util.emptyImageUrl) { + L.DomUtil.addClass(this, 'leaflet-tile-loaded'); + + layer.fire('tileload', { + tile: this, + url: this.src + }); + } + + layer._tileLoaded(); + }, + + _tileOnError: function () { + var layer = this._layer; + + layer.fire('tileerror', { + tile: this, + url: this.src + }); + + var newUrl = layer.options.errorTileUrl; + if (newUrl) { + this.src = newUrl; + } + + layer._tileLoaded(); + } +}); + +L.tileLayer = function (url, options) { + return new L.TileLayer(url, options); +}; + + +/* + * L.TileLayer.WMS is used for putting WMS tile layers on the map. + */ + +L.TileLayer.WMS = L.TileLayer.extend({ + + defaultWmsParams: { + service: 'WMS', + request: 'GetMap', + version: '1.1.1', + layers: '', + styles: '', + format: 'image/jpeg', + transparent: false + }, + + initialize: function (url, options) { // (String, Object) + + this._url = url; + + var wmsParams = L.extend({}, this.defaultWmsParams); + + if (options.detectRetina && L.Browser.retina) { + wmsParams.width = wmsParams.height = this.options.tileSize * 2; + } else { + wmsParams.width = wmsParams.height = this.options.tileSize; + } + + for (var i in options) { + // all keys that are not TileLayer options go to WMS params + if (!this.options.hasOwnProperty(i)) { + wmsParams[i] = options[i]; + } + } + + this.wmsParams = wmsParams; + + L.setOptions(this, options); + }, + + onAdd: function (map) { + + var projectionKey = parseFloat(this.wmsParams.version) >= 1.3 ? 'crs' : 'srs'; + this.wmsParams[projectionKey] = map.options.crs.code; + + L.TileLayer.prototype.onAdd.call(this, map); + }, + + getTileUrl: function (tilePoint, zoom) { // (Point, Number) -> String + + this._adjustTilePoint(tilePoint); + + var map = this._map, + crs = map.options.crs, + tileSize = this.options.tileSize, + + nwPoint = tilePoint.multiplyBy(tileSize), + sePoint = nwPoint.add(new L.Point(tileSize, tileSize)), + + nw = crs.project(map.unproject(nwPoint, zoom)), + se = crs.project(map.unproject(sePoint, zoom)), + + bbox = [nw.x, se.y, se.x, nw.y].join(','), + + url = L.Util.template(this._url, {s: this._getSubdomain(tilePoint)}); + + return url + L.Util.getParamString(this.wmsParams, url) + "&bbox=" + bbox; + }, + + setParams: function (params, noRedraw) { + + L.extend(this.wmsParams, params); + + if (!noRedraw) { + this.redraw(); + } + + return this; + } +}); + +L.tileLayer.wms = function (url, options) { + return new L.TileLayer.WMS(url, options); +}; + + +/* + * L.TileLayer.Canvas is a class that you can use as a base for creating + * dynamically drawn Canvas-based tile layers. + */ + +L.TileLayer.Canvas = L.TileLayer.extend({ + options: { + async: false + }, + + initialize: function (options) { + L.setOptions(this, options); + }, + + redraw: function () { + var tiles = this._tiles; + + for (var i in tiles) { + if (tiles.hasOwnProperty(i)) { + this._redrawTile(tiles[i]); + } + } + }, + + _redrawTile: function (tile) { + this.drawTile(tile, tile._tilePoint, this._map._zoom); + }, + + _createTileProto: function () { + var proto = this._canvasProto = L.DomUtil.create('canvas', 'leaflet-tile'); + proto.width = proto.height = this.options.tileSize; + }, + + _createTile: function () { + var tile = this._canvasProto.cloneNode(false); + tile.onselectstart = tile.onmousemove = L.Util.falseFn; + return tile; + }, + + _loadTile: function (tile, tilePoint) { + tile._layer = this; + tile._tilePoint = tilePoint; + + this._redrawTile(tile); + + if (!this.options.async) { + this.tileDrawn(tile); + } + }, + + drawTile: function (/*tile, tilePoint*/) { + // override with rendering code + }, + + tileDrawn: function (tile) { + this._tileOnLoad.call(tile); + } +}); + + +L.tileLayer.canvas = function (options) { + return new L.TileLayer.Canvas(options); +}; + + +/* + * L.ImageOverlay is used to overlay images over the map (to specific geographical bounds). + */ + +L.ImageOverlay = L.Class.extend({ + includes: L.Mixin.Events, + + options: { + opacity: 1 + }, + + initialize: function (url, bounds, options) { // (String, LatLngBounds, Object) + this._url = url; + this._bounds = L.latLngBounds(bounds); + + L.setOptions(this, options); + }, + + onAdd: function (map) { + this._map = map; + + if (!this._image) { + this._initImage(); + } + + map._panes.overlayPane.appendChild(this._image); + + map.on('viewreset', this._reset, this); + + if (map.options.zoomAnimation && L.Browser.any3d) { + map.on('zoomanim', this._animateZoom, this); + } + + this._reset(); + }, + + onRemove: function (map) { + map.getPanes().overlayPane.removeChild(this._image); + + map.off('viewreset', this._reset, this); + + if (map.options.zoomAnimation) { + map.off('zoomanim', this._animateZoom, this); + } + }, + + addTo: function (map) { + map.addLayer(this); + return this; + }, + + setOpacity: function (opacity) { + this.options.opacity = opacity; + this._updateOpacity(); + return this; + }, + + // TODO remove bringToFront/bringToBack duplication from TileLayer/Path + bringToFront: function () { + if (this._image) { + this._map._panes.overlayPane.appendChild(this._image); + } + return this; + }, + + bringToBack: function () { + var pane = this._map._panes.overlayPane; + if (this._image) { + pane.insertBefore(this._image, pane.firstChild); + } + return this; + }, + + _initImage: function () { + this._image = L.DomUtil.create('img', 'leaflet-image-layer'); + + if (this._map.options.zoomAnimation && L.Browser.any3d) { + L.DomUtil.addClass(this._image, 'leaflet-zoom-animated'); + } else { + L.DomUtil.addClass(this._image, 'leaflet-zoom-hide'); + } + + this._updateOpacity(); + + //TODO createImage util method to remove duplication + L.extend(this._image, { + galleryimg: 'no', + onselectstart: L.Util.falseFn, + onmousemove: L.Util.falseFn, + onload: L.bind(this._onImageLoad, this), + src: this._url + }); + }, + + _animateZoom: function (e) { + var map = this._map, + image = this._image, + scale = map.getZoomScale(e.zoom), + nw = this._bounds.getNorthWest(), + se = this._bounds.getSouthEast(), + + topLeft = map._latLngToNewLayerPoint(nw, e.zoom, e.center), + size = map._latLngToNewLayerPoint(se, e.zoom, e.center)._subtract(topLeft), + origin = topLeft._add(size._multiplyBy((1 / 2) * (1 - 1 / scale))); + + image.style[L.DomUtil.TRANSFORM] = + L.DomUtil.getTranslateString(origin) + ' scale(' + scale + ') '; + }, + + _reset: function () { + var image = this._image, + topLeft = this._map.latLngToLayerPoint(this._bounds.getNorthWest()), + size = this._map.latLngToLayerPoint(this._bounds.getSouthEast())._subtract(topLeft); + + L.DomUtil.setPosition(image, topLeft); + + image.style.width = size.x + 'px'; + image.style.height = size.y + 'px'; + }, + + _onImageLoad: function () { + this.fire('load'); + }, + + _updateOpacity: function () { + L.DomUtil.setOpacity(this._image, this.options.opacity); + } +}); + +L.imageOverlay = function (url, bounds, options) { + return new L.ImageOverlay(url, bounds, options); +}; + + +/* + * L.Icon is an image-based icon class that you can use with L.Marker for custom markers. + */ + +L.Icon = L.Class.extend({ + options: { + /* + iconUrl: (String) (required) + iconRetinaUrl: (String) (optional, used for retina devices if detected) + iconSize: (Point) (can be set through CSS) + iconAnchor: (Point) (centered by default, can be set in CSS with negative margins) + popupAnchor: (Point) (if not specified, popup opens in the anchor point) + shadowUrl: (Point) (no shadow by default) + shadowRetinaUrl: (String) (optional, used for retina devices if detected) + shadowSize: (Point) + shadowAnchor: (Point) + */ + className: '' + }, + + initialize: function (options) { + L.setOptions(this, options); + }, + + createIcon: function () { + return this._createIcon('icon'); + }, + + createShadow: function () { + return this._createIcon('shadow'); + }, + + _createIcon: function (name) { + var src = this._getIconUrl(name); + + if (!src) { + if (name === 'icon') { + throw new Error("iconUrl not set in Icon options (see the docs)."); + } + return null; + } + + var img = this._createImg(src); + this._setIconStyles(img, name); + + return img; + }, + + _setIconStyles: function (img, name) { + var options = this.options, + size = L.point(options[name + 'Size']), + anchor; + + if (name === 'shadow') { + anchor = L.point(options.shadowAnchor || options.iconAnchor); + } else { + anchor = L.point(options.iconAnchor); + } + + if (!anchor && size) { + anchor = size.divideBy(2, true); + } + + img.className = 'leaflet-marker-' + name + ' ' + options.className; + + if (anchor) { + img.style.marginLeft = (-anchor.x) + 'px'; + img.style.marginTop = (-anchor.y) + 'px'; + } + + if (size) { + img.style.width = size.x + 'px'; + img.style.height = size.y + 'px'; + } + }, + + _createImg: function (src) { + var el; + + if (!L.Browser.ie6) { + el = document.createElement('img'); + el.src = src; + } else { + el = document.createElement('div'); + el.style.filter = + 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src="' + src + '")'; + } + return el; + }, + + _getIconUrl: function (name) { + if (L.Browser.retina && this.options[name + 'RetinaUrl']) { + return this.options[name + 'RetinaUrl']; + } + return this.options[name + 'Url']; + } +}); + +L.icon = function (options) { + return new L.Icon(options); +}; + + +/* + * L.Icon.Default is the blue marker icon used by default in Leaflet. + */ + +L.Icon.Default = L.Icon.extend({ + + options: { + iconSize: new L.Point(25, 41), + iconAnchor: new L.Point(12, 41), + popupAnchor: new L.Point(1, -34), + + shadowSize: new L.Point(41, 41) + }, + + _getIconUrl: function (name) { + var key = name + 'Url'; + + if (this.options[key]) { + return this.options[key]; + } + + if (L.Browser.retina && name === 'icon') { + name += '@2x'; + } + + var path = L.Icon.Default.imagePath; + + if (!path) { + throw new Error("Couldn't autodetect L.Icon.Default.imagePath, set it manually."); + } + + return path + '/marker-' + name + '.png'; + } +}); + +L.Icon.Default.imagePath = (function () { + var scripts = document.getElementsByTagName('script'), + leafletRe = /\/?leaflet[\-\._]?([\w\-\._]*)\.js\??/; + + var i, len, src, matches; + + for (i = 0, len = scripts.length; i < len; i++) { + src = scripts[i].src; + matches = src.match(leafletRe); + + if (matches) { + return src.split(leafletRe)[0] + '/images'; + } + } +}()); + + +/* + * L.Marker is used to display clickable/draggable icons on the map. + */ + +L.Marker = L.Class.extend({ + + includes: L.Mixin.Events, + + options: { + icon: new L.Icon.Default(), + title: '', + clickable: true, + draggable: false, + zIndexOffset: 0, + opacity: 1, + riseOnHover: false, + riseOffset: 250 + }, + + initialize: function (latlng, options) { + L.setOptions(this, options); + this._latlng = L.latLng(latlng); + }, + + onAdd: function (map) { + this._map = map; + + map.on('viewreset', this.update, this); + + this._initIcon(); + this.update(); + + if (map.options.zoomAnimation && map.options.markerZoomAnimation) { + map.on('zoomanim', this._animateZoom, this); + } + }, + + addTo: function (map) { + map.addLayer(this); + return this; + }, + + onRemove: function (map) { + this._removeIcon(); + + this.fire('remove'); + + map.off({ + 'viewreset': this.update, + 'zoomanim': this._animateZoom + }, this); + + this._map = null; + }, + + getLatLng: function () { + return this._latlng; + }, + + setLatLng: function (latlng) { + this._latlng = L.latLng(latlng); + + this.update(); + + return this.fire('move', { latlng: this._latlng }); + }, + + setZIndexOffset: function (offset) { + this.options.zIndexOffset = offset; + this.update(); + + return this; + }, + + setIcon: function (icon) { + if (this._map) { + this._removeIcon(); + } + + this.options.icon = icon; + + if (this._map) { + this._initIcon(); + this.update(); + } + + return this; + }, + + update: function () { + if (this._icon) { + var pos = this._map.latLngToLayerPoint(this._latlng).round(); + this._setPos(pos); + } + + return this; + }, + + _initIcon: function () { + var options = this.options, + map = this._map, + animation = (map.options.zoomAnimation && map.options.markerZoomAnimation), + classToAdd = animation ? 'leaflet-zoom-animated' : 'leaflet-zoom-hide', + needOpacityUpdate = false; + + if (!this._icon) { + this._icon = options.icon.createIcon(); + + if (options.title) { + this._icon.title = options.title; + } + + this._initInteraction(); + needOpacityUpdate = (this.options.opacity < 1); + + L.DomUtil.addClass(this._icon, classToAdd); + + if (options.riseOnHover) { + L.DomEvent + .on(this._icon, 'mouseover', this._bringToFront, this) + .on(this._icon, 'mouseout', this._resetZIndex, this); + } + } + + if (!this._shadow) { + this._shadow = options.icon.createShadow(); + + if (this._shadow) { + L.DomUtil.addClass(this._shadow, classToAdd); + needOpacityUpdate = (this.options.opacity < 1); + } + } + + if (needOpacityUpdate) { + this._updateOpacity(); + } + + var panes = this._map._panes; + + panes.markerPane.appendChild(this._icon); + + if (this._shadow) { + panes.shadowPane.appendChild(this._shadow); + } + }, + + _removeIcon: function () { + var panes = this._map._panes; + + if (this.options.riseOnHover) { + L.DomEvent + .off(this._icon, 'mouseover', this._bringToFront) + .off(this._icon, 'mouseout', this._resetZIndex); + } + + panes.markerPane.removeChild(this._icon); + + if (this._shadow) { + panes.shadowPane.removeChild(this._shadow); + } + + this._icon = this._shadow = null; + }, + + _setPos: function (pos) { + L.DomUtil.setPosition(this._icon, pos); + + if (this._shadow) { + L.DomUtil.setPosition(this._shadow, pos); + } + + this._zIndex = pos.y + this.options.zIndexOffset; + + this._resetZIndex(); + }, + + _updateZIndex: function (offset) { + this._icon.style.zIndex = this._zIndex + offset; + }, + + _animateZoom: function (opt) { + var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center); + + this._setPos(pos); + }, + + _initInteraction: function () { + + if (!this.options.clickable) { return; } + + // TODO refactor into something shared with Map/Path/etc. to DRY it up + + var icon = this._icon, + events = ['dblclick', 'mousedown', 'mouseover', 'mouseout', 'contextmenu']; + + L.DomUtil.addClass(icon, 'leaflet-clickable'); + L.DomEvent.on(icon, 'click', this._onMouseClick, this); + + for (var i = 0; i < events.length; i++) { + L.DomEvent.on(icon, events[i], this._fireMouseEvent, this); + } + + if (L.Handler.MarkerDrag) { + this.dragging = new L.Handler.MarkerDrag(this); + + if (this.options.draggable) { + this.dragging.enable(); + } + } + }, + + _onMouseClick: function (e) { + var wasDragged = this.dragging && this.dragging.moved(); + + if (this.hasEventListeners(e.type) || wasDragged) { + L.DomEvent.stopPropagation(e); + } + + if (wasDragged) { return; } + + if ((!this.dragging || !this.dragging._enabled) && this._map.dragging && this._map.dragging.moved()) { return; } + + this.fire(e.type, { + originalEvent: e + }); + }, + + _fireMouseEvent: function (e) { + + this.fire(e.type, { + originalEvent: e + }); + + // TODO proper custom event propagation + // this line will always be called if marker is in a FeatureGroup + if (e.type === 'contextmenu' && this.hasEventListeners(e.type)) { + L.DomEvent.preventDefault(e); + } + if (e.type !== 'mousedown') { + L.DomEvent.stopPropagation(e); + } + }, + + setOpacity: function (opacity) { + this.options.opacity = opacity; + if (this._map) { + this._updateOpacity(); + } + }, + + _updateOpacity: function () { + L.DomUtil.setOpacity(this._icon, this.options.opacity); + if (this._shadow) { + L.DomUtil.setOpacity(this._shadow, this.options.opacity); + } + }, + + _bringToFront: function () { + this._updateZIndex(this.options.riseOffset); + }, + + _resetZIndex: function () { + this._updateZIndex(0); + } +}); + +L.marker = function (latlng, options) { + return new L.Marker(latlng, options); +}; + + +/* + * L.DivIcon is a lightweight HTML-based icon class (as opposed to the image-based L.Icon) + * to use with L.Marker. + */ + +L.DivIcon = L.Icon.extend({ + options: { + iconSize: new L.Point(12, 12), // also can be set through CSS + /* + iconAnchor: (Point) + popupAnchor: (Point) + html: (String) + bgPos: (Point) + */ + className: 'leaflet-div-icon' + }, + + createIcon: function () { + var div = document.createElement('div'), + options = this.options; + + if (options.html) { + div.innerHTML = options.html; + } + + if (options.bgPos) { + div.style.backgroundPosition = + (-options.bgPos.x) + 'px ' + (-options.bgPos.y) + 'px'; + } + + this._setIconStyles(div, 'icon'); + return div; + }, + + createShadow: function () { + return null; + } +}); + +L.divIcon = function (options) { + return new L.DivIcon(options); +}; + + +/* + * L.Popup is used for displaying popups on the map. + */ + +L.Map.mergeOptions({ + closePopupOnClick: true +}); + +L.Popup = L.Class.extend({ + includes: L.Mixin.Events, + + options: { + minWidth: 50, + maxWidth: 300, + maxHeight: null, + autoPan: true, + closeButton: true, + offset: new L.Point(0, 6), + autoPanPadding: new L.Point(5, 5), + className: '', + zoomAnimation: true + }, + + initialize: function (options, source) { + L.setOptions(this, options); + + this._source = source; + this._animated = L.Browser.any3d && this.options.zoomAnimation; + }, + + onAdd: function (map) { + this._map = map; + + if (!this._container) { + this._initLayout(); + } + this._updateContent(); + + var animFade = map.options.fadeAnimation; + + if (animFade) { + L.DomUtil.setOpacity(this._container, 0); + } + map._panes.popupPane.appendChild(this._container); + + map.on('viewreset', this._updatePosition, this); + + if (this._animated) { + map.on('zoomanim', this._zoomAnimation, this); + } + + if (map.options.closePopupOnClick) { + map.on('preclick', this._close, this); + } + + this._update(); + + if (animFade) { + L.DomUtil.setOpacity(this._container, 1); + } + }, + + addTo: function (map) { + map.addLayer(this); + return this; + }, + + openOn: function (map) { + map.openPopup(this); + return this; + }, + + onRemove: function (map) { + map._panes.popupPane.removeChild(this._container); + + L.Util.falseFn(this._container.offsetWidth); // force reflow + + map.off({ + viewreset: this._updatePosition, + preclick: this._close, + zoomanim: this._zoomAnimation + }, this); + + if (map.options.fadeAnimation) { + L.DomUtil.setOpacity(this._container, 0); + } + + this._map = null; + }, + + setLatLng: function (latlng) { + this._latlng = L.latLng(latlng); + this._update(); + return this; + }, + + setContent: function (content) { + this._content = content; + this._update(); + return this; + }, + + _close: function () { + var map = this._map; + + if (map) { + map._popup = null; + + map + .removeLayer(this) + .fire('popupclose', {popup: this}); + } + }, + + _initLayout: function () { + var prefix = 'leaflet-popup', + containerClass = prefix + ' ' + this.options.className + ' leaflet-zoom-' + + (this._animated ? 'animated' : 'hide'), + container = this._container = L.DomUtil.create('div', containerClass), + closeButton; + + if (this.options.closeButton) { + closeButton = this._closeButton = + L.DomUtil.create('a', prefix + '-close-button', container); + closeButton.href = '#close'; + closeButton.innerHTML = '×'; + + L.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this); + } + + var wrapper = this._wrapper = + L.DomUtil.create('div', prefix + '-content-wrapper', container); + L.DomEvent.disableClickPropagation(wrapper); + + this._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper); + L.DomEvent.on(this._contentNode, 'mousewheel', L.DomEvent.stopPropagation); + + this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container); + this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer); + }, + + _update: function () { + if (!this._map) { return; } + + this._container.style.visibility = 'hidden'; + + this._updateContent(); + this._updateLayout(); + this._updatePosition(); + + this._container.style.visibility = ''; + + this._adjustPan(); + }, + + _updateContent: function () { + if (!this._content) { return; } + + if (typeof this._content === 'string') { + this._contentNode.innerHTML = this._content; + } else { + while (this._contentNode.hasChildNodes()) { + this._contentNode.removeChild(this._contentNode.firstChild); + } + this._contentNode.appendChild(this._content); + } + this.fire('contentupdate'); + }, + + _updateLayout: function () { + var container = this._contentNode, + style = container.style; + + style.width = ''; + style.whiteSpace = 'nowrap'; + + var width = container.offsetWidth; + width = Math.min(width, this.options.maxWidth); + width = Math.max(width, this.options.minWidth); + + style.width = (width + 1) + 'px'; + style.whiteSpace = ''; + + style.height = ''; + + var height = container.offsetHeight, + maxHeight = this.options.maxHeight, + scrolledClass = 'leaflet-popup-scrolled'; + + if (maxHeight && height > maxHeight) { + style.height = maxHeight + 'px'; + L.DomUtil.addClass(container, scrolledClass); + } else { + L.DomUtil.removeClass(container, scrolledClass); + } + + this._containerWidth = this._container.offsetWidth; + }, + + _updatePosition: function () { + if (!this._map) { return; } + + var pos = this._map.latLngToLayerPoint(this._latlng), + animated = this._animated, + offset = this.options.offset; + + if (animated) { + L.DomUtil.setPosition(this._container, pos); + } + + this._containerBottom = -offset.y - (animated ? 0 : pos.y); + this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x + (animated ? 0 : pos.x); + + //Bottom position the popup in case the height of the popup changes (images loading etc) + this._container.style.bottom = this._containerBottom + 'px'; + this._container.style.left = this._containerLeft + 'px'; + }, + + _zoomAnimation: function (opt) { + var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center); + + L.DomUtil.setPosition(this._container, pos); + }, + + _adjustPan: function () { + if (!this.options.autoPan) { return; } + + var map = this._map, + containerHeight = this._container.offsetHeight, + containerWidth = this._containerWidth, + + layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom); + + if (this._animated) { + layerPos._add(L.DomUtil.getPosition(this._container)); + } + + var containerPos = map.layerPointToContainerPoint(layerPos), + padding = this.options.autoPanPadding, + size = map.getSize(), + dx = 0, + dy = 0; + + if (containerPos.x < 0) { + dx = containerPos.x - padding.x; + } + if (containerPos.x + containerWidth > size.x) { + dx = containerPos.x + containerWidth - size.x + padding.x; + } + if (containerPos.y < 0) { + dy = containerPos.y - padding.y; + } + if (containerPos.y + containerHeight > size.y) { + dy = containerPos.y + containerHeight - size.y + padding.y; + } + + if (dx || dy) { + map.panBy(new L.Point(dx, dy)); + } + }, + + _onCloseButtonClick: function (e) { + this._close(); + L.DomEvent.stop(e); + } +}); + +L.popup = function (options, source) { + return new L.Popup(options, source); +}; + + +/* + * Popup extension to L.Marker, adding popup-related methods. + */ + +L.Marker.include({ + openPopup: function () { + if (this._popup && this._map) { + this._popup.setLatLng(this._latlng); + this._map.openPopup(this._popup); + } + + return this; + }, + + closePopup: function () { + if (this._popup) { + this._popup._close(); + } + return this; + }, + + bindPopup: function (content, options) { + var anchor = L.point(this.options.icon.options.popupAnchor) || new L.Point(0, 0); + + anchor = anchor.add(L.Popup.prototype.options.offset); + + if (options && options.offset) { + anchor = anchor.add(options.offset); + } + + options = L.extend({offset: anchor}, options); + + if (!this._popup) { + this + .on('click', this.openPopup, this) + .on('remove', this.closePopup, this) + .on('move', this._movePopup, this); + } + + this._popup = new L.Popup(options, this) + .setContent(content); + + return this; + }, + + unbindPopup: function () { + if (this._popup) { + this._popup = null; + this + .off('click', this.openPopup) + .off('remove', this.closePopup) + .off('move', this._movePopup); + } + return this; + }, + + _movePopup: function (e) { + this._popup.setLatLng(e.latlng); + } +}); + + +/* + * Adds popup-related methods to L.Map. + */ + +L.Map.include({ + openPopup: function (popup) { + this.closePopup(); + + this._popup = popup; + + return this + .addLayer(popup) + .fire('popupopen', {popup: this._popup}); + }, + + closePopup: function () { + if (this._popup) { + this._popup._close(); + } + return this; + } +}); + + +/* + * L.LayerGroup is a class to combine several layers into one so that + * you can manipulate the group (e.g. add/remove it) as one layer. + */ + +L.LayerGroup = L.Class.extend({ + initialize: function (layers) { + this._layers = {}; + + var i, len; + + if (layers) { + for (i = 0, len = layers.length; i < len; i++) { + this.addLayer(layers[i]); + } + } + }, + + addLayer: function (layer) { + var id = L.stamp(layer); + + this._layers[id] = layer; + + if (this._map) { + this._map.addLayer(layer); + } + + return this; + }, + + removeLayer: function (layer) { + var id = L.stamp(layer); + + delete this._layers[id]; + + if (this._map) { + this._map.removeLayer(layer); + } + + return this; + }, + + clearLayers: function () { + this.eachLayer(this.removeLayer, this); + return this; + }, + + invoke: function (methodName) { + var args = Array.prototype.slice.call(arguments, 1), + i, layer; + + for (i in this._layers) { + if (this._layers.hasOwnProperty(i)) { + layer = this._layers[i]; + + if (layer[methodName]) { + layer[methodName].apply(layer, args); + } + } + } + + return this; + }, + + onAdd: function (map) { + this._map = map; + this.eachLayer(map.addLayer, map); + }, + + onRemove: function (map) { + this.eachLayer(map.removeLayer, map); + this._map = null; + }, + + addTo: function (map) { + map.addLayer(this); + return this; + }, + + eachLayer: function (method, context) { + for (var i in this._layers) { + if (this._layers.hasOwnProperty(i)) { + method.call(context, this._layers[i]); + } + } + }, + + setZIndex: function (zIndex) { + return this.invoke('setZIndex', zIndex); + } +}); + +L.layerGroup = function (layers) { + return new L.LayerGroup(layers); +}; + + +/* + * L.FeatureGroup extends L.LayerGroup by introducing mouse events and additional methods + * shared between a group of interactive layers (like vectors or markers). + */ + +L.FeatureGroup = L.LayerGroup.extend({ + includes: L.Mixin.Events, + + statics: { + EVENTS: 'click dblclick mouseover mouseout mousemove contextmenu' + }, + + addLayer: function (layer) { + if (this._layers[L.stamp(layer)]) { + return this; + } + + layer.on(L.FeatureGroup.EVENTS, this._propagateEvent, this); + + L.LayerGroup.prototype.addLayer.call(this, layer); + + if (this._popupContent && layer.bindPopup) { + layer.bindPopup(this._popupContent, this._popupOptions); + } + + return this.fire('layeradd', {layer: layer}); + }, + + removeLayer: function (layer) { + layer.off(L.FeatureGroup.EVENTS, this._propagateEvent, this); + + L.LayerGroup.prototype.removeLayer.call(this, layer); + + + if (this._popupContent) { + this.invoke('unbindPopup'); + } + + return this.fire('layerremove', {layer: layer}); + }, + + bindPopup: function (content, options) { + this._popupContent = content; + this._popupOptions = options; + return this.invoke('bindPopup', content, options); + }, + + setStyle: function (style) { + return this.invoke('setStyle', style); + }, + + bringToFront: function () { + return this.invoke('bringToFront'); + }, + + bringToBack: function () { + return this.invoke('bringToBack'); + }, + + getBounds: function () { + var bounds = new L.LatLngBounds(); + + this.eachLayer(function (layer) { + bounds.extend(layer instanceof L.Marker ? layer.getLatLng() : layer.getBounds()); + }); + + return bounds; + }, + + _propagateEvent: function (e) { + e.layer = e.target; + e.target = this; + + this.fire(e.type, e); + } +}); + +L.featureGroup = function (layers) { + return new L.FeatureGroup(layers); +}; + + +/* + * L.Path is a base class for rendering vector paths on a map. Inherited by Polyline, Circle, etc. + */ + +L.Path = L.Class.extend({ + includes: [L.Mixin.Events], + + statics: { + // how much to extend the clip area around the map view + // (relative to its size, e.g. 0.5 is half the screen in each direction) + // set it so that SVG element doesn't exceed 1280px (vectors flicker on dragend if it is) + CLIP_PADDING: L.Browser.mobile ? + Math.max(0, Math.min(0.5, + (1280 / Math.max(window.innerWidth, window.innerHeight) - 1) / 2)) : 0.5 + }, + + options: { + stroke: true, + color: '#0033ff', + dashArray: null, + weight: 5, + opacity: 0.5, + + fill: false, + fillColor: null, //same as color by default + fillOpacity: 0.2, + + clickable: true + }, + + initialize: function (options) { + L.setOptions(this, options); + }, + + onAdd: function (map) { + this._map = map; + + if (!this._container) { + this._initElements(); + this._initEvents(); + } + + this.projectLatlngs(); + this._updatePath(); + + if (this._container) { + this._map._pathRoot.appendChild(this._container); + } + + this.fire('add'); + + map.on({ + 'viewreset': this.projectLatlngs, + 'moveend': this._updatePath + }, this); + }, + + addTo: function (map) { + map.addLayer(this); + return this; + }, + + onRemove: function (map) { + map._pathRoot.removeChild(this._container); + + // Need to fire remove event before we set _map to null as the event hooks might need the object + this.fire('remove'); + this._map = null; + + if (L.Browser.vml) { + this._container = null; + this._stroke = null; + this._fill = null; + } + + map.off({ + 'viewreset': this.projectLatlngs, + 'moveend': this._updatePath + }, this); + }, + + projectLatlngs: function () { + // do all projection stuff here + }, + + setStyle: function (style) { + L.setOptions(this, style); + + if (this._container) { + this._updateStyle(); + } + + return this; + }, + + redraw: function () { + if (this._map) { + this.projectLatlngs(); + this._updatePath(); + } + return this; + } +}); + +L.Map.include({ + _updatePathViewport: function () { + var p = L.Path.CLIP_PADDING, + size = this.getSize(), + panePos = L.DomUtil.getPosition(this._mapPane), + min = panePos.multiplyBy(-1)._subtract(size.multiplyBy(p)._round()), + max = min.add(size.multiplyBy(1 + p * 2)._round()); + + this._pathViewport = new L.Bounds(min, max); + } +}); + + +/* + * Extends L.Path with SVG-specific rendering code. + */ + +L.Path.SVG_NS = 'http://www.w3.org/2000/svg'; + +L.Browser.svg = !!(document.createElementNS && document.createElementNS(L.Path.SVG_NS, 'svg').createSVGRect); + +L.Path = L.Path.extend({ + statics: { + SVG: L.Browser.svg + }, + + bringToFront: function () { + var root = this._map._pathRoot, + path = this._container; + + if (path && root.lastChild !== path) { + root.appendChild(path); + } + return this; + }, + + bringToBack: function () { + var root = this._map._pathRoot, + path = this._container, + first = root.firstChild; + + if (path && first !== path) { + root.insertBefore(path, first); + } + return this; + }, + + getPathString: function () { + // form path string here + }, + + _createElement: function (name) { + return document.createElementNS(L.Path.SVG_NS, name); + }, + + _initElements: function () { + this._map._initPathRoot(); + this._initPath(); + this._initStyle(); + }, + + _initPath: function () { + this._container = this._createElement('g'); + + this._path = this._createElement('path'); + this._container.appendChild(this._path); + }, + + _initStyle: function () { + if (this.options.stroke) { + this._path.setAttribute('stroke-linejoin', 'round'); + this._path.setAttribute('stroke-linecap', 'round'); + } + if (this.options.fill) { + this._path.setAttribute('fill-rule', 'evenodd'); + } + this._updateStyle(); + }, + + _updateStyle: function () { + if (this.options.stroke) { + this._path.setAttribute('stroke', this.options.color); + this._path.setAttribute('stroke-opacity', this.options.opacity); + this._path.setAttribute('stroke-width', this.options.weight); + if (this.options.dashArray) { + this._path.setAttribute('stroke-dasharray', this.options.dashArray); + } else { + this._path.removeAttribute('stroke-dasharray'); + } + } else { + this._path.setAttribute('stroke', 'none'); + } + if (this.options.fill) { + this._path.setAttribute('fill', this.options.fillColor || this.options.color); + this._path.setAttribute('fill-opacity', this.options.fillOpacity); + } else { + this._path.setAttribute('fill', 'none'); + } + }, + + _updatePath: function () { + var str = this.getPathString(); + if (!str) { + // fix webkit empty string parsing bug + str = 'M0 0'; + } + this._path.setAttribute('d', str); + }, + + // TODO remove duplication with L.Map + _initEvents: function () { + if (this.options.clickable) { + if (L.Browser.svg || !L.Browser.vml) { + this._path.setAttribute('class', 'leaflet-clickable'); + } + + L.DomEvent.on(this._container, 'click', this._onMouseClick, this); + + var events = ['dblclick', 'mousedown', 'mouseover', + 'mouseout', 'mousemove', 'contextmenu']; + for (var i = 0; i < events.length; i++) { + L.DomEvent.on(this._container, events[i], this._fireMouseEvent, this); + } + } + }, + + _onMouseClick: function (e) { + if (this._map.dragging && this._map.dragging.moved()) { return; } + + this._fireMouseEvent(e); + }, + + _fireMouseEvent: function (e) { + if (!this.hasEventListeners(e.type)) { return; } + + var map = this._map, + containerPoint = map.mouseEventToContainerPoint(e), + layerPoint = map.containerPointToLayerPoint(containerPoint), + latlng = map.layerPointToLatLng(layerPoint); + + this.fire(e.type, { + latlng: latlng, + layerPoint: layerPoint, + containerPoint: containerPoint, + originalEvent: e + }); + + if (e.type === 'contextmenu') { + L.DomEvent.preventDefault(e); + } + if (e.type !== 'mousemove') { + L.DomEvent.stopPropagation(e); + } + } +}); + +L.Map.include({ + _initPathRoot: function () { + if (!this._pathRoot) { + this._pathRoot = L.Path.prototype._createElement('svg'); + this._panes.overlayPane.appendChild(this._pathRoot); + + if (this.options.zoomAnimation && L.Browser.any3d) { + this._pathRoot.setAttribute('class', ' leaflet-zoom-animated'); + + this.on({ + 'zoomanim': this._animatePathZoom, + 'zoomend': this._endPathZoom + }); + } else { + this._pathRoot.setAttribute('class', ' leaflet-zoom-hide'); + } + + this.on('moveend', this._updateSvgViewport); + this._updateSvgViewport(); + } + }, + + _animatePathZoom: function (e) { + var scale = this.getZoomScale(e.zoom), + offset = this._getCenterOffset(e.center)._multiplyBy(-scale)._add(this._pathViewport.min); + + this._pathRoot.style[L.DomUtil.TRANSFORM] = + L.DomUtil.getTranslateString(offset) + ' scale(' + scale + ') '; + + this._pathZooming = true; + }, + + _endPathZoom: function () { + this._pathZooming = false; + }, + + _updateSvgViewport: function () { + + if (this._pathZooming) { + // Do not update SVGs while a zoom animation is going on otherwise the animation will break. + // When the zoom animation ends we will be updated again anyway + // This fixes the case where you do a momentum move and zoom while the move is still ongoing. + return; + } + + this._updatePathViewport(); + + var vp = this._pathViewport, + min = vp.min, + max = vp.max, + width = max.x - min.x, + height = max.y - min.y, + root = this._pathRoot, + pane = this._panes.overlayPane; + + // Hack to make flicker on drag end on mobile webkit less irritating + if (L.Browser.mobileWebkit) { + pane.removeChild(root); + } + + L.DomUtil.setPosition(root, min); + root.setAttribute('width', width); + root.setAttribute('height', height); + root.setAttribute('viewBox', [min.x, min.y, width, height].join(' ')); + + if (L.Browser.mobileWebkit) { + pane.appendChild(root); + } + } +}); + + +/* + * Popup extension to L.Path (polylines, polygons, circles), adding popup-related methods. + */ + +L.Path.include({ + + bindPopup: function (content, options) { + + if (!this._popup || options) { + this._popup = new L.Popup(options, this); + } + + this._popup.setContent(content); + + if (!this._popupHandlersAdded) { + this + .on('click', this._openPopup, this) + .on('remove', this.closePopup, this); + + this._popupHandlersAdded = true; + } + + return this; + }, + + unbindPopup: function () { + if (this._popup) { + this._popup = null; + this + .off('click', this._openPopup) + .off('remove', this.closePopup); + + this._popupHandlersAdded = false; + } + return this; + }, + + openPopup: function (latlng) { + + if (this._popup) { + // open the popup from one of the path's points if not specified + latlng = latlng || this._latlng || + this._latlngs[Math.floor(this._latlngs.length / 2)]; + + this._openPopup({latlng: latlng}); + } + + return this; + }, + + closePopup: function () { + if (this._popup) { + this._popup._close(); + } + 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 = !L.Browser.svg && (function () { + try { + var div = document.createElement('div'); + div.innerHTML = '<v:shape adj="1"/>'; + + var shape = div.firstChild; + shape.style.behavior = 'url(#default#VML)'; + + return shape && (typeof shape.adj === 'object'); + + } catch (e) { + return false; + } +}()); + +L.Path = L.Browser.svg || !L.Browser.vml ? L.Path : L.Path.extend({ + statics: { + VML: true, + CLIP_PADDING: 0.02 + }, + + _createElement: (function () { + try { + document.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml'); + return function (name) { + return document.createElement('<lvml:' + name + ' class="lvml">'); + }; + } catch (e) { + return function (name) { + return document.createElement( + '<' + name + ' xmlns="urn:schemas-microsoft.com:vml" class="lvml">'); + }; + } + }()), + + _initPath: function () { + var container = this._container = this._createElement('shape'); + L.DomUtil.addClass(container, 'leaflet-vml-shape'); + if (this.options.clickable) { + L.DomUtil.addClass(container, 'leaflet-clickable'); + } + container.coordsize = '1 1'; + + this._path = this._createElement('path'); + container.appendChild(this._path); + + this._map._pathRoot.appendChild(container); + }, + + _initStyle: function () { + this._updateStyle(); + }, + + _updateStyle: function () { + var stroke = this._stroke, + fill = this._fill, + options = this.options, + container = this._container; + + container.stroked = options.stroke; + container.filled = options.fill; + + if (options.stroke) { + if (!stroke) { + stroke = this._stroke = this._createElement('stroke'); + stroke.endcap = 'round'; + container.appendChild(stroke); + } + stroke.weight = options.weight + 'px'; + stroke.color = options.color; + stroke.opacity = options.opacity; + + if (options.dashArray) { + stroke.dashStyle = options.dashArray instanceof Array ? + options.dashArray.join(' ') : + options.dashArray.replace(/ *, */g, ' '); + } else { + stroke.dashStyle = ''; + } + + } else if (stroke) { + container.removeChild(stroke); + this._stroke = null; + } + + if (options.fill) { + if (!fill) { + fill = this._fill = this._createElement('fill'); + container.appendChild(fill); + } + fill.color = options.fillColor || options.color; + fill.opacity = options.fillOpacity; + + } else if (fill) { + container.removeChild(fill); + this._fill = null; + } + }, + + _updatePath: function () { + var style = this._container.style; + + style.display = 'none'; + this._path.v = this.getPathString() + ' '; // the space fixes IE empty path string bug + style.display = ''; + } +}); + +L.Map.include(L.Browser.svg || !L.Browser.vml ? {} : { + _initPathRoot: function () { + if (this._pathRoot) { return; } + + var root = this._pathRoot = document.createElement('div'); + root.className = 'leaflet-vml-container'; + this._panes.overlayPane.appendChild(root); + + this.on('moveend', this._updatePathViewport); + this._updatePathViewport(); + } +}); + + +/* + * Vector rendering for all browsers that support canvas. + */ + +L.Browser.canvas = (function () { + return !!document.createElement('canvas').getContext; +}()); + +L.Path = (L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? L.Path : L.Path.extend({ + statics: { + //CLIP_PADDING: 0.02, // not sure if there's a need to set it to a small value + CANVAS: true, + SVG: false + }, + + redraw: function () { + if (this._map) { + this.projectLatlngs(); + this._requestUpdate(); + } + return this; + }, + + setStyle: function (style) { + L.setOptions(this, style); + + if (this._map) { + this._updateStyle(); + this._requestUpdate(); + } + return this; + }, + + onRemove: function (map) { + map + .off('viewreset', this.projectLatlngs, this) + .off('moveend', this._updatePath, this); + + if (this.options.clickable) { + this._map.off('click', this._onClick, this); + } + + this._requestUpdate(); + + this._map = null; + }, + + _requestUpdate: function () { + if (this._map && !L.Path._updateRequest) { + L.Path._updateRequest = L.Util.requestAnimFrame(this._fireMapMoveEnd, this._map); + } + }, + + _fireMapMoveEnd: function () { + L.Path._updateRequest = null; + this.fire('moveend'); + }, + + _initElements: function () { + this._map._initPathRoot(); + this._ctx = this._map._canvasCtx; + }, + + _updateStyle: function () { + var options = this.options; + + if (options.stroke) { + this._ctx.lineWidth = options.weight; + this._ctx.strokeStyle = options.color; + } + if (options.fill) { + this._ctx.fillStyle = options.fillColor || options.color; + } + }, + + _drawPath: function () { + var i, j, len, len2, point, drawMethod; + + this._ctx.beginPath(); + + for (i = 0, len = this._parts.length; i < len; i++) { + for (j = 0, len2 = this._parts[i].length; j < len2; j++) { + point = this._parts[i][j]; + drawMethod = (j === 0 ? 'move' : 'line') + 'To'; + + this._ctx[drawMethod](point.x, point.y); + } + // TODO refactor ugly hack + if (this instanceof L.Polygon) { + this._ctx.closePath(); + } + } + }, + + _checkIfEmpty: function () { + return !this._parts.length; + }, + + _updatePath: function () { + if (this._checkIfEmpty()) { return; } + + var ctx = this._ctx, + options = this.options; + + this._drawPath(); + ctx.save(); + this._updateStyle(); + + if (options.fill) { + ctx.globalAlpha = options.fillOpacity; + ctx.fill(); + } + + if (options.stroke) { + ctx.globalAlpha = options.opacity; + ctx.stroke(); + } + + ctx.restore(); + + // TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature + }, + + _initEvents: function () { + if (this.options.clickable) { + // TODO hand cursor + // TODO mouseover, mouseout, dblclick + this._map.on('click', this._onClick, this); + } + }, + + _onClick: function (e) { + if (this._containsPoint(e.layerPoint)) { + this.fire('click', { + latlng: e.latlng, + layerPoint: e.layerPoint, + containerPoint: e.containerPoint, + originalEvent: e + }); + } + } +}); + +L.Map.include((L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? {} : { + _initPathRoot: function () { + var root = this._pathRoot, + ctx; + + if (!root) { + root = this._pathRoot = document.createElement("canvas"); + root.style.position = 'absolute'; + ctx = this._canvasCtx = root.getContext('2d'); + + ctx.lineCap = "round"; + ctx.lineJoin = "round"; + + this._panes.overlayPane.appendChild(root); + + if (this.options.zoomAnimation) { + this._pathRoot.className = 'leaflet-zoom-animated'; + this.on('zoomanim', this._animatePathZoom); + this.on('zoomend', this._endPathZoom); + } + this.on('moveend', this._updateCanvasViewport); + this._updateCanvasViewport(); + } + }, + + _updateCanvasViewport: function () { + // don't redraw while zooming. See _updateSvgViewport for more details + if (this._pathZooming) { return; } + this._updatePathViewport(); + + var vp = this._pathViewport, + min = vp.min, + size = vp.max.subtract(min), + root = this._pathRoot; + + //TODO check if this works properly on mobile webkit + L.DomUtil.setPosition(root, min); + root.width = size.x; + root.height = size.y; + root.getContext('2d').translate(-min.x, -min.y); + } +}); + + +/* + * L.LineUtil contains different utility functions for line segments + * and polylines (clipping, simplification, distances, etc.) + */ + +/*jshint bitwise:false */ // allow bitwise oprations for this file + +L.LineUtil = { + + // Simplify polyline with vertex reduction and Douglas-Peucker simplification. + // Improves rendering performance dramatically by lessening the number of points to draw. + + simplify: function (/*Point[]*/ points, /*Number*/ tolerance) { + if (!tolerance || !points.length) { + return points.slice(); + } + + var sqTolerance = tolerance * tolerance; + + // stage 1: vertex reduction + points = this._reducePoints(points, sqTolerance); + + // stage 2: Douglas-Peucker simplification + points = this._simplifyDP(points, sqTolerance); + + return points; + }, + + // distance from a point to a segment between two points + pointToSegmentDistance: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) { + return Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true)); + }, + + closestPointOnSegment: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) { + return this._sqClosestPointOnSegment(p, p1, p2); + }, + + // Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm + _simplifyDP: function (points, sqTolerance) { + + var len = points.length, + ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array, + markers = new ArrayConstructor(len); + + markers[0] = markers[len - 1] = 1; + + this._simplifyDPStep(points, markers, sqTolerance, 0, len - 1); + + var i, + newPoints = []; + + for (i = 0; i < len; i++) { + if (markers[i]) { + newPoints.push(points[i]); + } + } + + return newPoints; + }, + + _simplifyDPStep: function (points, markers, sqTolerance, first, last) { + + var maxSqDist = 0, + index, i, sqDist; + + for (i = first + 1; i <= last - 1; i++) { + sqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true); + + if (sqDist > maxSqDist) { + index = i; + maxSqDist = sqDist; + } + } + + if (maxSqDist > sqTolerance) { + markers[index] = 1; + + this._simplifyDPStep(points, markers, sqTolerance, first, index); + this._simplifyDPStep(points, markers, sqTolerance, index, last); + } + }, + + // reduce points that are too close to each other to a single point + _reducePoints: function (points, sqTolerance) { + var reducedPoints = [points[0]]; + + for (var i = 1, prev = 0, len = points.length; i < len; i++) { + if (this._sqDist(points[i], points[prev]) > sqTolerance) { + reducedPoints.push(points[i]); + prev = i; + } + } + if (prev < len - 1) { + reducedPoints.push(points[len - 1]); + } + return reducedPoints; + }, + + // Cohen-Sutherland line clipping algorithm. + // Used to avoid rendering parts of a polyline that are not currently visible. + + clipSegment: function (a, b, bounds, useLastCode) { + var codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds), + codeB = this._getBitCode(b, bounds), + + codeOut, p, newCode; + + // save 2nd code to avoid calculating it on the next segment + this._lastCode = codeB; + + while (true) { + // if a,b is inside the clip window (trivial accept) + if (!(codeA | codeB)) { + return [a, b]; + // if a,b is outside the clip window (trivial reject) + } else if (codeA & codeB) { + return false; + // other cases + } else { + codeOut = codeA || codeB, + p = this._getEdgeIntersection(a, b, codeOut, bounds), + newCode = this._getBitCode(p, bounds); + + if (codeOut === codeA) { + a = p; + codeA = newCode; + } else { + b = p; + codeB = newCode; + } + } + } + }, + + _getEdgeIntersection: function (a, b, code, bounds) { + var dx = b.x - a.x, + dy = b.y - a.y, + min = bounds.min, + max = bounds.max; + + 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; + }, + + // 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.Polygon is used to display polylines on a map. + */ + +L.Polyline = L.Path.extend({ + initialize: function (latlngs, options) { + L.Path.prototype.initialize.call(this, options); + + this._latlngs = this._convertLatLngs(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 + }, + + projectLatlngs: function () { + this._originalPoints = []; + + for (var i = 0, len = this._latlngs.length; i < len; i++) { + this._originalPoints[i] = this._map.latLngToLayerPoint(this._latlngs[i]); + } + }, + + getPathString: function () { + for (var i = 0, len = this._parts.length, str = ''; i < len; i++) { + str += this._getPathPartStr(this._parts[i]); + } + return str; + }, + + getLatLngs: function () { + return this._latlngs; + }, + + setLatLngs: function (latlngs) { + this._latlngs = this._convertLatLngs(latlngs); + return this.redraw(); + }, + + addLatLng: function (latlng) { + this._latlngs.push(L.latLng(latlng)); + return this.redraw(); + }, + + spliceLatLngs: function () { // (Number index, Number howMany) + var removed = [].splice.apply(this._latlngs, arguments); + this._convertLatLngs(this._latlngs); + this.redraw(); + return removed; + }, + + closestLayerPoint: function (p) { + var minDistance = Infinity, parts = this._parts, p1, p2, minPoint = null; + + for (var j = 0, jLen = parts.length; j < jLen; j++) { + var points = parts[j]; + for (var i = 1, len = points.length; i < len; i++) { + p1 = points[i - 1]; + p2 = points[i]; + var sqDist = L.LineUtil._sqClosestPointOnSegment(p, p1, p2, true); + if (sqDist < minDistance) { + minDistance = sqDist; + minPoint = L.LineUtil._sqClosestPointOnSegment(p, p1, p2); + } + } + } + if (minPoint) { + minPoint.distance = Math.sqrt(minDistance); + } + return minPoint; + }, + + getBounds: function () { + var bounds = new L.LatLngBounds(), + latLngs = this.getLatLngs(), + i, len; + + for (i = 0, len = latLngs.length; i < len; i++) { + bounds.extend(latLngs[i]); + } + + return bounds; + }, + + _convertLatLngs: function (latlngs) { + var i, len; + for (i = 0, len = latlngs.length; i < len; i++) { + if (L.Util.isArray(latlngs[i]) && typeof latlngs[i][0] !== 'number') { + return; + } + latlngs[i] = L.latLng(latlngs[i]); + } + return latlngs; + }, + + _initEvents: function () { + L.Path.prototype._initEvents.call(this); + }, + + _getPathPartStr: function (points) { + var round = L.Path.VML; + + for (var j = 0, len2 = points.length, str = '', p; j < len2; j++) { + p = points[j]; + if (round) { + p._round(); + } + str += (j ? 'L' : 'M') + p.x + ' ' + p.y; + } + return str; + }, + + _clipPoints: function () { + var points = this._originalPoints, + len = points.length, + i, k, segment; + + if (this.options.noClip) { + this._parts = [points]; + return; + } + + this._parts = []; + + var parts = this._parts, + vp = this._map._pathViewport, + lu = L.LineUtil; + + for (i = 0, k = 0; i < len - 1; i++) { + segment = lu.clipSegment(points[i], points[i + 1], vp, i); + if (!segment) { + continue; + } + + parts[k] = parts[k] || []; + parts[k].push(segment[0]); + + // if segment goes out of screen, or it's the last one, it's the end of the line part + if ((segment[1] !== points[i + 1]) || (i === len - 2)) { + parts[k].push(segment[1]); + k++; + } + } + }, + + // simplify each clipped part of the polyline + _simplifyPoints: function () { + var parts = this._parts, + lu = L.LineUtil; + + for (var i = 0, len = parts.length; i < len; i++) { + parts[i] = lu.simplify(parts[i], this.options.smoothFactor); + } + }, + + _updatePath: function () { + if (!this._map) { return; } + + this._clipPoints(); + this._simplifyPoints(); + + L.Path.prototype._updatePath.call(this); + } +}); + +L.polyline = function (latlngs, options) { + return new L.Polyline(latlngs, options); +}; + + +/* + * L.PolyUtil contains utility functions for polygons (clipping, etc.). + */ + +/*jshint bitwise:false */ // allow bitwise operations here + +L.PolyUtil = {}; + +/* + * Sutherland-Hodgeman polygon clipping algorithm. + * Used to avoid rendering parts of a polygon that are not currently visible. + */ +L.PolyUtil.clipPolygon = function (points, bounds) { + var clippedPoints, + edges = [1, 4, 2, 8], + i, j, k, + a, b, + len, edge, p, + lu = L.LineUtil; + + for (i = 0, len = points.length; i < len; i++) { + points[i]._code = lu._getBitCode(points[i], bounds); + } + + // for each edge (left, bottom, right, top) + for (k = 0; k < 4; k++) { + edge = edges[k]; + clippedPoints = []; + + for (i = 0, len = points.length, j = len - 1; i < len; j = i++) { + a = points[i]; + b = points[j]; + + // if a is inside the clip window + if (!(a._code & edge)) { + // if b is outside the clip window (a->b goes out of screen) + if (b._code & edge) { + p = lu._getEdgeIntersection(b, a, edge, bounds); + p._code = lu._getBitCode(p, bounds); + clippedPoints.push(p); + } + clippedPoints.push(a); + + // else if b is inside the clip window (a->b enters the screen) + } else if (!(b._code & edge)) { + p = lu._getEdgeIntersection(b, a, edge, bounds); + p._code = lu._getBitCode(p, bounds); + clippedPoints.push(p); + } + } + points = clippedPoints; + } + + return points; +}; + + +/* + * L.Polygon 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 && L.Util.isArray(latlngs[0]) && (typeof latlngs[0][0] !== 'number')) { + this._latlngs = this._convertLatLngs(latlngs[0]); + this._holes = latlngs.slice(1); + } + }, + + projectLatlngs: function () { + L.Polyline.prototype.projectLatlngs.call(this); + + // project polygon holes points + // TODO move this logic to Polyline to get rid of duplication + this._holePoints = []; + + if (!this._holes) { return; } + + var i, j, len, len2; + + for (i = 0, len = this._holes.length; i < len; i++) { + this._holePoints[i] = []; + + for (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) { + newParts.push(clipped); + } + } + + this._parts = newParts; + }, + + _getPathPartStr: function (points) { + var str = L.Polyline.prototype._getPathPartStr.call(this, points); + return str + (L.Browser.svg ? 'z' : 'x'); + } +}); + +L.polygon = function (latlngs, options) { + return new L.Polygon(latlngs, options); +}; + + +/* + * Contains L.MultiPolyline and L.MultiPolygon layers. + */ + +(function () { + function createMulti(Klass) { + + return L.FeatureGroup.extend({ + + initialize: function (latlngs, options) { + this._layers = {}; + this._options = options; + this.setLatLngs(latlngs); + }, + + setLatLngs: function (latlngs) { + var i = 0, + len = latlngs.length; + + this.eachLayer(function (layer) { + if (i < len) { + layer.setLatLngs(latlngs[i++]); + } else { + this.removeLayer(layer); + } + }, this); + + while (i < len) { + this.addLayer(new Klass(latlngs[i++], this._options)); + } + + return this; + } + }); + } + + L.MultiPolyline = createMulti(L.Polyline); + L.MultiPolygon = createMulti(L.Polygon); + + L.multiPolyline = function (latlngs, options) { + return new L.MultiPolyline(latlngs, options); + }; + + L.multiPolygon = function (latlngs, options) { + return new L.MultiPolygon(latlngs, options); + }; +}()); + + +/* + * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object. + */ + +L.Rectangle = L.Polygon.extend({ + initialize: function (latLngBounds, options) { + L.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options); + }, + + setBounds: function (latLngBounds) { + this.setLatLngs(this._boundsToLatLngs(latLngBounds)); + }, + + _boundsToLatLngs: function (latLngBounds) { + latLngBounds = L.latLngBounds(latLngBounds); + return [ + latLngBounds.getSouthWest(), + latLngBounds.getNorthWest(), + latLngBounds.getNorthEast(), + latLngBounds.getSouthEast() + ]; + } +}); + +L.rectangle = function (latLngBounds, options) { + return new L.Rectangle(latLngBounds, options); +}; + + +/* + * L.Circle is a circle overlay (with a certain radius in meters). + */ + +L.Circle = L.Path.extend({ + initialize: function (latlng, radius, options) { + L.Path.prototype.initialize.call(this, options); + + this._latlng = L.latLng(latlng); + this._mRadius = radius; + }, + + options: { + fill: true + }, + + setLatLng: function (latlng) { + this._latlng = L.latLng(latlng); + return this.redraw(); + }, + + setRadius: function (radius) { + this._mRadius = radius; + return this.redraw(); + }, + + projectLatlngs: function () { + var lngRadius = this._getLngRadius(), + latlng2 = new L.LatLng(this._latlng.lat, this._latlng.lng - lngRadius), + point2 = this._map.latLngToLayerPoint(latlng2); + + this._point = this._map.latLngToLayerPoint(this._latlng); + this._radius = Math.max(Math.round(this._point.x - point2.x), 1); + }, + + getBounds: function () { + var lngRadius = this._getLngRadius(), + latRadius = (this._mRadius / 40075017) * 360, + latlng = this._latlng, + sw = new L.LatLng(latlng.lat - latRadius, latlng.lng - lngRadius), + ne = new L.LatLng(latlng.lat + latRadius, latlng.lng + lngRadius); + + return new L.LatLngBounds(sw, ne); + }, + + getLatLng: function () { + return this._latlng; + }, + + getPathString: function () { + var p = this._point, + r = this._radius; + + if (this._checkIfEmpty()) { + return ''; + } + + if (L.Browser.svg) { + return "M" + p.x + "," + (p.y - r) + + "A" + r + "," + r + ",0,1,1," + + (p.x - 0.1) + "," + (p.y - r) + " z"; + } else { + p._round(); + r = Math.round(r); + return "AL " + p.x + "," + p.y + " " + r + "," + r + " 0," + (65535 * 360); + } + }, + + getRadius: function () { + return this._mRadius; + }, + + // TODO Earth hardcoded, move into projection code! + + _getLatRadius: function () { + return (this._mRadius / 40075017) * 360; + }, + + _getLngRadius: function () { + return this._getLatRadius() / Math.cos(L.LatLng.DEG_TO_RAD * this._latlng.lat); + }, + + _checkIfEmpty: function () { + if (!this._map) { + return false; + } + var vp = this._map._pathViewport, + r = this._radius, + p = this._point; + + return p.x - r > vp.max.x || p.y - r > vp.max.y || + p.x + r < vp.min.x || p.y + r < vp.min.y; + } +}); + +L.circle = function (latlng, radius, options) { + return new L.Circle(latlng, radius, options); +}; + + +/* + * L.CircleMarker is a circle overlay with a permanent pixel radius. + */ + +L.CircleMarker = L.Circle.extend({ + options: { + radius: 10, + weight: 2 + }, + + initialize: function (latlng, options) { + L.Circle.prototype.initialize.call(this, latlng, null, options); + this._radius = this.options.radius; + }, + + projectLatlngs: function () { + this._point = this._map.latLngToLayerPoint(this._latlng); + }, + + _updateStyle : function () { + L.Circle.prototype._updateStyle.call(this); + this.setRadius(this.options.radius); + }, + + setRadius: function (radius) { + this.options.radius = this._radius = radius; + return this.redraw(); + } +}); + +L.circleMarker = function (latlng, options) { + return new L.CircleMarker(latlng, options); +}; + + +/* + * Extends L.Polyline to be able to manually detect clicks on Canvas-rendered polylines. + */ + +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; + } +}); + + +/* + * Extends L.Polygon to be able to manually detect clicks on Canvas-rendered polygons. + */ + +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; + } +}); + + +/* + * Extends L.Circle with Canvas-specific code. + */ + +L.Circle.include(!L.Path.CANVAS ? {} : { + _drawPath: function () { + var p = this._point; + this._ctx.beginPath(); + this._ctx.arc(p.x, p.y, this._radius, 0, Math.PI * 2, false); + }, + + _containsPoint: function (p) { + var center = this._point, + w2 = this.options.stroke ? this.options.weight / 2 : 0; + + return (p.distanceTo(center) <= this._radius + w2); + } +}); + + +/* + * L.GeoJSON turns any GeoJSON data into a Leaflet layer. + */ + +L.GeoJSON = L.FeatureGroup.extend({ + + initialize: function (geojson, options) { + L.setOptions(this, options); + + this._layers = {}; + + if (geojson) { + this.addData(geojson); + } + }, + + addData: function (geojson) { + var features = L.Util.isArray(geojson) ? geojson : geojson.features, + i, len; + + if (features) { + for (i = 0, len = features.length; i < len; i++) { + // Only add this if geometry or geometries are set and not null + if (features[i].geometries || features[i].geometry || features[i].features) { + this.addData(features[i]); + } + } + return this; + } + + var options = this.options; + + if (options.filter && !options.filter(geojson)) { return; } + + var layer = L.GeoJSON.geometryToLayer(geojson, options.pointToLayer); + layer.feature = geojson; + + layer.defaultOptions = layer.options; + this.resetStyle(layer); + + if (options.onEachFeature) { + options.onEachFeature(geojson, layer); + } + + return this.addLayer(layer); + }, + + resetStyle: function (layer) { + var style = this.options.style; + if (style) { + // reset any custom styles + L.Util.extend(layer.options, layer.defaultOptions); + + this._setLayerStyle(layer, style); + } + }, + + setStyle: function (style) { + this.eachLayer(function (layer) { + this._setLayerStyle(layer, style); + }, this); + }, + + _setLayerStyle: function (layer, style) { + if (typeof style === 'function') { + style = style(layer.feature); + } + if (layer.setStyle) { + layer.setStyle(style); + } + } +}); + +L.extend(L.GeoJSON, { + geometryToLayer: function (geojson, pointToLayer) { + var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson, + coords = geometry.coordinates, + layers = [], + latlng, latlngs, i, len, layer; + + switch (geometry.type) { + case 'Point': + latlng = this.coordsToLatLng(coords); + return pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng); + + case 'MultiPoint': + for (i = 0, len = coords.length; i < len; i++) { + latlng = this.coordsToLatLng(coords[i]); + layer = pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng); + layers.push(layer); + } + return new L.FeatureGroup(layers); + + case 'LineString': + latlngs = this.coordsToLatLngs(coords); + return new L.Polyline(latlngs); + + case 'Polygon': + latlngs = this.coordsToLatLngs(coords, 1); + return new L.Polygon(latlngs); + + case 'MultiLineString': + latlngs = this.coordsToLatLngs(coords, 1); + return new L.MultiPolyline(latlngs); + + case 'MultiPolygon': + latlngs = this.coordsToLatLngs(coords, 2); + return new L.MultiPolygon(latlngs); + + case 'GeometryCollection': + for (i = 0, len = geometry.geometries.length; i < len; i++) { + layer = this.geometryToLayer({ + geometry: geometry.geometries[i], + type: 'Feature', + properties: geojson.properties + }, pointToLayer); + layers.push(layer); + } + return new L.FeatureGroup(layers); + + default: + throw new Error('Invalid GeoJSON object.'); + } + }, + + coordsToLatLng: function (coords, reverse) { // (Array, Boolean) -> LatLng + var lat = parseFloat(coords[reverse ? 0 : 1]), + lng = parseFloat(coords[reverse ? 1 : 0]); + + return new L.LatLng(lat, lng); + }, + + coordsToLatLngs: function (coords, levelsDeep, reverse) { // (Array, Number, Boolean) -> Array + var latlng, + latlngs = [], + i, len; + + for (i = 0, len = coords.length; i < len; i++) { + latlng = levelsDeep ? + this.coordsToLatLngs(coords[i], levelsDeep - 1, reverse) : + this.coordsToLatLng(coords[i], reverse); + + latlngs.push(latlng); + } + + return latlngs; + } +}); + +L.geoJson = function (geojson, options) { + return new L.GeoJSON(geojson, options); +}; + + +/* + * L.DomEvent contains functions for working with DOM events. + */ + +L.DomEvent = { + /* inspired by John Resig, Dean Edwards and YUI addEvent implementations */ + addListener: function (obj, type, fn, context) { // (HTMLElement, String, Function[, Object]) + + var id = L.stamp(fn), + key = '_leaflet_' + type + id, + handler, originalHandler, newType; + + if (obj[key]) { return this; } + + handler = function (e) { + return fn.call(context || obj, e || L.DomEvent._getEvent()); + }; + + if (L.Browser.msTouch && type.indexOf('touch') === 0) { + return this.addMsTouchListener(obj, type, handler, id); + } + if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener) { + this.addDoubleTapListener(obj, handler, id); + } + + if ('addEventListener' in obj) { + + if (type === 'mousewheel') { + obj.addEventListener('DOMMouseScroll', handler, false); + obj.addEventListener(type, handler, false); + + } else if ((type === 'mouseenter') || (type === 'mouseleave')) { + + originalHandler = handler; + newType = (type === 'mouseenter' ? 'mouseover' : 'mouseout'); + + handler = function (e) { + if (!L.DomEvent._checkMouse(obj, e)) { return; } + return originalHandler(e); + }; + + obj.addEventListener(newType, handler, false); + + } else { + obj.addEventListener(type, handler, false); + } + + } else if ('attachEvent' in obj) { + obj.attachEvent("on" + type, handler); + } + + obj[key] = handler; + + return this; + }, + + removeListener: function (obj, type, fn) { // (HTMLElement, String, Function) + + var id = L.stamp(fn), + key = '_leaflet_' + type + id, + handler = obj[key]; + + if (!handler) { return; } + + if (L.Browser.msTouch && type.indexOf('touch') === 0) { + this.removeMsTouchListener(obj, type, id); + } else if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) { + this.removeDoubleTapListener(obj, id); + + } else if ('removeEventListener' in obj) { + + if (type === 'mousewheel') { + obj.removeEventListener('DOMMouseScroll', handler, false); + obj.removeEventListener(type, handler, false); + + } else if ((type === 'mouseenter') || (type === 'mouseleave')) { + obj.removeEventListener((type === 'mouseenter' ? 'mouseover' : 'mouseout'), handler, false); + } else { + obj.removeEventListener(type, handler, false); + } + } else if ('detachEvent' in obj) { + obj.detachEvent("on" + type, handler); + } + + obj[key] = null; + + return this; + }, + + stopPropagation: function (e) { + + if (e.stopPropagation) { + e.stopPropagation(); + } else { + e.cancelBubble = true; + } + return this; + }, + + disableClickPropagation: function (el) { + + var stop = L.DomEvent.stopPropagation; + + for (var i = L.Draggable.START.length - 1; i >= 0; i--) { + L.DomEvent.addListener(el, L.Draggable.START[i], stop); + } + + return L.DomEvent + .addListener(el, 'click', stop) + .addListener(el, 'dblclick', stop); + }, + + preventDefault: function (e) { + + if (e.preventDefault) { + e.preventDefault(); + } else { + e.returnValue = false; + } + return this; + }, + + stop: function (e) { + return L.DomEvent.preventDefault(e).stopPropagation(e); + }, + + getMousePosition: function (e, container) { + + var body = document.body, + docEl = document.documentElement, + x = e.pageX ? e.pageX : e.clientX + body.scrollLeft + docEl.scrollLeft, + y = e.pageY ? e.pageY : e.clientY + body.scrollTop + docEl.scrollTop, + pos = new L.Point(x, y); + + return (container ? pos._subtract(L.DomUtil.getViewportOffset(container)) : pos); + }, + + getWheelDelta: function (e) { + + var delta = 0; + + if (e.wheelDelta) { + delta = e.wheelDelta / 120; + } + if (e.detail) { + delta = -e.detail / 3; + } + return delta; + }, + + // check if element really left/entered the event target (for mouseenter/mouseleave) + _checkMouse: function (el, e) { + + var related = e.relatedTarget; + + if (!related) { return true; } + + try { + while (related && (related !== el)) { + related = related.parentNode; + } + } catch (err) { + return false; + } + return (related !== el); + }, + + _getEvent: function () { // evil magic for IE + /*jshint noarg:false */ + 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; + } +}; + +L.DomEvent.on = L.DomEvent.addListener; +L.DomEvent.off = L.DomEvent.removeListener; + + +/* + * L.Draggable allows you to add dragging capabilities to any element. Supports mobile devices too. + */ + +L.Draggable = L.Class.extend({ + includes: L.Mixin.Events, + + statics: { + START: L.Browser.touch ? ['touchstart', 'mousedown'] : ['mousedown'], + END: { + mousedown: 'mouseup', + touchstart: 'touchend', + MSPointerDown: 'touchend' + }, + MOVE: { + mousedown: 'mousemove', + touchstart: 'touchmove', + MSPointerDown: 'touchmove' + }, + TAP_TOLERANCE: 15 + }, + + initialize: function (element, dragStartTarget, longPress) { + this._element = element; + this._dragStartTarget = dragStartTarget || element; + this._longPress = longPress && !L.Browser.msTouch; + }, + + enable: function () { + if (this._enabled) { return; } + + for (var i = L.Draggable.START.length - 1; i >= 0; i--) { + L.DomEvent.on(this._dragStartTarget, L.Draggable.START[i], this._onDown, this); + } + this._enabled = true; + }, + + disable: function () { + if (!this._enabled) { return; } + + for (var i = L.Draggable.START.length - 1; i >= 0; i--) { + L.DomEvent.off(this._dragStartTarget, L.Draggable.START[i], this._onDown, this); + } + this._enabled = false; + this._moved = false; + }, + + _onDown: function (e) { + if ((!L.Browser.touch && e.shiftKey) || + ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; } + + L.DomEvent.preventDefault(e); + L.DomEvent.stopPropagation(e); + + if (L.Draggable._disabled) { return; } + + this._simulateClick = true; + + if (e.touches && e.touches.length > 1) { + this._simulateClick = false; + clearTimeout(this._longPressTimeout); + return; + } + + var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e), + el = first.target; + + if (L.Browser.touch && el.tagName.toLowerCase() === 'a') { + L.DomUtil.addClass(el, 'leaflet-active'); + } + + this._moved = false; + if (this._moving) { return; } + + this._startPoint = new L.Point(first.clientX, first.clientY); + this._startPos = this._newPos = L.DomUtil.getPosition(this._element); + + //Touch contextmenu event emulation + if (e.touches && e.touches.length === 1 && L.Browser.touch && this._longPress) { + this._longPressTimeout = setTimeout(L.bind(function () { + var dist = (this._newPos && this._newPos.distanceTo(this._startPos)) || 0; + + if (dist < L.Draggable.TAP_TOLERANCE) { + this._simulateClick = false; + this._onUp(); + this._simulateEvent('contextmenu', first); + } + }, this), 1000); + } + + L.DomEvent.on(document, L.Draggable.MOVE[e.type], this._onMove, this); + L.DomEvent.on(document, L.Draggable.END[e.type], this._onUp, this); + }, + + _onMove: function (e) { + if (e.touches && e.touches.length > 1) { return; } + + var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e), + newPoint = new L.Point(first.clientX, first.clientY), + diffVec = newPoint.subtract(this._startPoint); + + if (!diffVec.x && !diffVec.y) { return; } + + L.DomEvent.preventDefault(e); + + if (!this._moved) { + this.fire('dragstart'); + this._moved = true; + + this._startPos = L.DomUtil.getPosition(this._element).subtract(diffVec); + + if (!L.Browser.touch) { + L.DomUtil.disableTextSelection(); + this._setMovingCursor(); + } + } + + this._newPos = this._startPos.add(diffVec); + this._moving = true; + + L.Util.cancelAnimFrame(this._animRequest); + this._animRequest = L.Util.requestAnimFrame(this._updatePosition, this, true, this._dragStartTarget); + }, + + _updatePosition: function () { + this.fire('predrag'); + L.DomUtil.setPosition(this._element, this._newPos); + this.fire('drag'); + }, + + _onUp: function (e) { + var simulateClickTouch; + clearTimeout(this._longPressTimeout); + if (this._simulateClick && e.changedTouches) { + var first = e.changedTouches[0], + el = first.target, + dist = (this._newPos && this._newPos.distanceTo(this._startPos)) || 0; + + if (el.tagName.toLowerCase() === 'a') { + L.DomUtil.removeClass(el, 'leaflet-active'); + } + + if (dist < L.Draggable.TAP_TOLERANCE) { + simulateClickTouch = first; + } + } + + if (!L.Browser.touch) { + L.DomUtil.enableTextSelection(); + this._restoreCursor(); + } + + for (var i in L.Draggable.MOVE) { + if (L.Draggable.MOVE.hasOwnProperty(i)) { + L.DomEvent.off(document, L.Draggable.MOVE[i], this._onMove); + L.DomEvent.off(document, L.Draggable.END[i], this._onUp); + } + } + + if (this._moved) { + // ensure drag is not fired after dragend + L.Util.cancelAnimFrame(this._animRequest); + + this.fire('dragend'); + } + this._moving = false; + + if (simulateClickTouch) { + this._moved = false; + this._simulateEvent('click', simulateClickTouch); + } + }, + + _setMovingCursor: function () { + L.DomUtil.addClass(document.body, 'leaflet-dragging'); + }, + + _restoreCursor: function () { + L.DomUtil.removeClass(document.body, 'leaflet-dragging'); + }, + + _simulateEvent: function (type, e) { + var simulatedEvent = document.createEvent('MouseEvents'); + + simulatedEvent.initMouseEvent( + type, true, true, window, 1, + e.screenX, e.screenY, + e.clientX, e.clientY, + false, false, false, false, 0, null); + + e.target.dispatchEvent(simulatedEvent); + } +}); + + +/* + L.Handler is a base class for handler classes that are used internally to inject + interaction features like dragging to classes like Map and Marker. +*/ + +L.Handler = L.Class.extend({ + initialize: function (map) { + this._map = map; + }, + + enable: function () { + if (this._enabled) { return; } + + this._enabled = true; + this.addHooks(); + }, + + disable: function () { + if (!this._enabled) { return; } + + this._enabled = false; + this.removeHooks(); + }, + + enabled: function () { + return !!this._enabled; + } +}); + + +/* + * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default. + */ + +L.Map.mergeOptions({ + dragging: true, + + inertia: !L.Browser.android23, + inertiaDeceleration: 3400, // px/s^2 + inertiaMaxSpeed: Infinity, // px/s + inertiaThreshold: L.Browser.touch ? 32 : 18, // ms + easeLinearity: 0.25, + + longPress: true, + + // TODO refactor, move to CRS + worldCopyJump: false +}); + +L.Map.Drag = L.Handler.extend({ + addHooks: function () { + if (!this._draggable) { + var map = this._map; + + this._draggable = new L.Draggable(map._mapPane, map._container, map.options.longPress); + + this._draggable.on({ + 'dragstart': this._onDragStart, + 'drag': this._onDrag, + 'dragend': this._onDragEnd + }, this); + + if (map.options.worldCopyJump) { + this._draggable.on('predrag', this._onPreDrag, this); + map.on('viewreset', this._onViewReset, this); + } + } + this._draggable.enable(); + }, + + removeHooks: function () { + this._draggable.disable(); + }, + + moved: function () { + return this._draggable && this._draggable._moved; + }, + + _onDragStart: function () { + var map = this._map; + + if (map._panAnim) { + map._panAnim.stop(); + } + + map + .fire('movestart') + .fire('dragstart'); + + if (map.options.inertia) { + this._positions = []; + this._times = []; + } + }, + + _onDrag: function () { + if (this._map.options.inertia) { + var time = this._lastTime = +new Date(), + pos = this._lastPos = this._draggable._newPos; + + this._positions.push(pos); + this._times.push(time); + + if (time - this._times[0] > 200) { + this._positions.shift(); + this._times.shift(); + } + } + + this._map + .fire('move') + .fire('drag'); + }, + + _onViewReset: function () { + // TODO fix hardcoded Earth values + var pxCenter = this._map.getSize()._divideBy(2), + pxWorldCenter = this._map.latLngToLayerPoint(new L.LatLng(0, 0)); + + this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x; + this._worldWidth = this._map.project(new L.LatLng(0, 180)).x; + }, + + _onPreDrag: function () { + // TODO refactor to be able to adjust map pane position after zoom + var worldWidth = this._worldWidth, + halfWidth = Math.round(worldWidth / 2), + dx = this._initialWorldOffset, + x = this._draggable._newPos.x, + newX1 = (x - halfWidth + dx) % worldWidth + halfWidth - dx, + newX2 = (x + halfWidth + dx) % worldWidth - halfWidth - dx, + newX = Math.abs(newX1 + dx) < Math.abs(newX2 + dx) ? newX1 : newX2; + + this._draggable._newPos.x = newX; + }, + + _onDragEnd: function () { + var map = this._map, + options = map.options, + delay = +new Date() - this._lastTime, + + noInertia = !options.inertia || delay > options.inertiaThreshold || !this._positions[0]; + + if (noInertia) { + map.fire('moveend'); + + } else { + + var direction = this._lastPos.subtract(this._positions[0]), + duration = (this._lastTime + delay - this._times[0]) / 1000, + ease = options.easeLinearity, + + speedVector = direction.multiplyBy(ease / duration), + speed = speedVector.distanceTo(new L.Point(0, 0)), + + limitedSpeed = Math.min(options.inertiaMaxSpeed, speed), + limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed), + + decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease), + offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round(); + + L.Util.requestAnimFrame(function () { + map.panBy(offset, decelerationDuration, ease); + }); + } + + map.fire('dragend'); + + if (options.maxBounds) { + // TODO predrag validation instead of animation + L.Util.requestAnimFrame(this._panInsideMaxBounds, map, true, map._container); + } + }, + + _panInsideMaxBounds: function () { + this.panInsideBounds(this.options.maxBounds); + } +}); + +L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag); + + +/* + * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default. + */ + +L.Map.mergeOptions({ + doubleClickZoom: true +}); + +L.Map.DoubleClickZoom = L.Handler.extend({ + addHooks: function () { + this._map.on('dblclick', this._onDoubleClick); + }, + + removeHooks: function () { + this._map.off('dblclick', this._onDoubleClick); + }, + + _onDoubleClick: function (e) { + this.setView(e.latlng, this._zoom + 1); + } +}); + +L.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom); + + +/* + * L.Handler.ScrollWheelZoom is used by L.Map to enable mouse scroll wheel zoom on the map. + */ + +L.Map.mergeOptions({ + scrollWheelZoom: true +}); + +L.Map.ScrollWheelZoom = L.Handler.extend({ + addHooks: function () { + L.DomEvent.on(this._map._container, 'mousewheel', this._onWheelScroll, this); + this._delta = 0; + }, + + removeHooks: function () { + L.DomEvent.off(this._map._container, 'mousewheel', this._onWheelScroll); + }, + + _onWheelScroll: function (e) { + var delta = L.DomEvent.getWheelDelta(e); + + this._delta += delta; + this._lastMousePos = this._map.mouseEventToContainerPoint(e); + + if (!this._startTime) { + this._startTime = +new Date(); + } + + var left = Math.max(40 - (+new Date() - this._startTime), 0); + + clearTimeout(this._timer); + this._timer = setTimeout(L.bind(this._performZoom, this), left); + + L.DomEvent.preventDefault(e); + L.DomEvent.stopPropagation(e); + }, + + _performZoom: function () { + var map = this._map, + delta = this._delta, + zoom = map.getZoom(); + + delta = delta > 0 ? Math.ceil(delta) : Math.round(delta); + delta = Math.max(Math.min(delta, 4), -4); + delta = map._limitZoom(zoom + delta) - zoom; + + this._delta = 0; + + this._startTime = null; + + if (!delta) { return; } + + var newZoom = zoom + delta, + newCenter = this._getCenterForScrollWheelZoom(newZoom); + + map.setView(newCenter, newZoom); + }, + + _getCenterForScrollWheelZoom: function (newZoom) { + var map = this._map, + scale = map.getZoomScale(newZoom), + viewHalf = map.getSize()._divideBy(2), + centerOffset = this._lastMousePos._subtract(viewHalf)._multiplyBy(1 - 1 / scale), + newCenterPoint = map._getTopLeftPoint()._add(viewHalf)._add(centerOffset); + + return map.unproject(newCenterPoint); + } +}); + +L.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom); + + +/* + * Extends the event handling code with double tap support for mobile browsers. + */ + +L.extend(L.DomEvent, { + + _touchstart: L.Browser.msTouch ? 'MSPointerDown' : 'touchstart', + _touchend: L.Browser.msTouch ? 'MSPointerUp' : 'touchend', + + // inspired by Zepto touch code by Thomas Fuchs + addDoubleTapListener: function (obj, handler, id) { + var last, + doubleTap = false, + delay = 250, + touch, + pre = '_leaflet_', + touchstart = this._touchstart, + touchend = this._touchend, + trackedTouches = []; + + function onTouchStart(e) { + var count; + if (L.Browser.msTouch) { + trackedTouches.push(e.pointerId); + count = trackedTouches.length; + } else { + count = e.touches.length; + } + if (count > 1) { + return; + } + + var now = Date.now(), + delta = now - (last || now); + + touch = e.touches ? e.touches[0] : e; + doubleTap = (delta > 0 && delta <= delay); + last = now; + } + + function onTouchEnd(e) { + /*jshint forin:false */ + if (L.Browser.msTouch) { + var idx = trackedTouches.indexOf(e.pointerId); + if (idx === -1) { + return; + } + trackedTouches.splice(idx, 1); + } + + if (doubleTap) { + if (L.Browser.msTouch) { + //Work around .type being readonly with MSPointer* events + var newTouch = { }, + prop; + + for (var i in touch) { + prop = touch[i]; + if (typeof prop === 'function') { + newTouch[i] = prop.bind(touch); + } else { + newTouch[i] = prop; + } + } + touch = newTouch; + } + touch.type = 'dblclick'; + handler(touch); + last = null; + } + } + obj[pre + touchstart + id] = onTouchStart; + obj[pre + touchend + id] = onTouchEnd; + + //On msTouch we need to listen on the document otherwise a drag starting on the map and moving off screen will not come through to us + // so we will lose track of how many touches are ongoing + var endElement = L.Browser.msTouch ? document.documentElement : obj; + + obj.addEventListener(touchstart, onTouchStart, false); + endElement.addEventListener(touchend, onTouchEnd, false); + if (L.Browser.msTouch) { + endElement.addEventListener('MSPointerCancel', onTouchEnd, false); + } + return this; + }, + + removeDoubleTapListener: function (obj, id) { + var pre = '_leaflet_'; + obj.removeEventListener(this._touchstart, obj[pre + this._touchstart + id], false); + (L.Browser.msTouch ? document.documentElement : obj).removeEventListener(this._touchend, obj[pre + this._touchend + id], false); + if (L.Browser.msTouch) { + document.documentElement.removeEventListener('MSPointerCancel', obj[pre + this._touchend + id], false); + } + return this; + } +}); + + +/* + * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices. + */ + +L.extend(L.DomEvent, { + + _msTouches: [], + _msDocumentListener: false, + + // Provides a touch events wrapper for msPointer events. + // Based on changes by veproza https://github.com/CloudMade/Leaflet/pull/1019 + + addMsTouchListener: function (obj, type, handler, id) { + + switch (type) { + case 'touchstart': + return this.addMsTouchListenerStart(obj, type, handler, id); + case 'touchend': + return this.addMsTouchListenerEnd(obj, type, handler, id); + case 'touchmove': + return this.addMsTouchListenerMove(obj, type, handler, id); + default: + throw 'Unknown touch event type'; + } + }, + + addMsTouchListenerStart: function (obj, type, handler, id) { + var pre = '_leaflet_', + touches = this._msTouches; + + var cb = function (e) { + + var alreadyInArray = false; + for (var i = 0; i < touches.length; i++) { + if (touches[i].pointerId === e.pointerId) { + alreadyInArray = true; + break; + } + } + if (!alreadyInArray) { + touches.push(e); + } + + e.touches = touches.slice(); + e.changedTouches = [e]; + + handler(e); + }; + + obj[pre + 'touchstart' + id] = cb; + obj.addEventListener('MSPointerDown', cb, false); + + // need to also listen for end events to keep the _msTouches list accurate + // this needs to be on the body and never go away + if (!this._msDocumentListener) { + var internalCb = function (e) { + for (var i = 0; i < touches.length; i++) { + if (touches[i].pointerId === e.pointerId) { + touches.splice(i, 1); + break; + } + } + }; + //We listen on the documentElement as any drags that end by moving the touch off the screen get fired there + document.documentElement.addEventListener('MSPointerUp', internalCb, false); + document.documentElement.addEventListener('MSPointerCancel', internalCb, false); + + this._msDocumentListener = true; + } + + return this; + }, + + addMsTouchListenerMove: function (obj, type, handler, id) { + var pre = '_leaflet_', + touches = this._msTouches; + + function cb(e) { + + // don't fire touch moves when mouse isn't down + if (e.pointerType === e.MSPOINTER_TYPE_MOUSE && e.buttons === 0) { return; } + + for (var i = 0; i < touches.length; i++) { + if (touches[i].pointerId === e.pointerId) { + touches[i] = e; + break; + } + } + + e.touches = touches.slice(); + e.changedTouches = [e]; + + handler(e); + } + + obj[pre + 'touchmove' + id] = cb; + obj.addEventListener('MSPointerMove', cb, false); + + return this; + }, + + addMsTouchListenerEnd: function (obj, type, handler, id) { + var pre = '_leaflet_', + touches = this._msTouches; + + var cb = function (e) { + for (var i = 0; i < touches.length; i++) { + if (touches[i].pointerId === e.pointerId) { + touches.splice(i, 1); + break; + } + } + + e.touches = touches.slice(); + e.changedTouches = [e]; + + handler(e); + }; + + obj[pre + 'touchend' + id] = cb; + obj.addEventListener('MSPointerUp', cb, false); + obj.addEventListener('MSPointerCancel', cb, false); + + return this; + }, + + removeMsTouchListener: function (obj, type, id) { + var pre = '_leaflet_', + cb = obj[pre + type + id]; + + switch (type) { + case 'touchstart': + obj.removeEventListener('MSPointerDown', cb, false); + break; + case 'touchmove': + obj.removeEventListener('MSPointerMove', cb, false); + break; + case 'touchend': + obj.removeEventListener('MSPointerUp', cb, false); + obj.removeEventListener('MSPointerCancel', cb, false); + break; + } + + return this; + } +}); + + +/* + * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers. + */ + +L.Map.mergeOptions({ + touchZoom: L.Browser.touch && !L.Browser.android23 +}); + +L.Map.TouchZoom = L.Handler.extend({ + addHooks: function () { + L.DomEvent.on(this._map._container, 'touchstart', this._onTouchStart, this); + }, + + removeHooks: function () { + L.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this); + }, + + _onTouchStart: function (e) { + var map = this._map; + + if (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; } + + var p1 = map.mouseEventToLayerPoint(e.touches[0]), + p2 = map.mouseEventToLayerPoint(e.touches[1]), + viewCenter = map._getCenterLayerPoint(); + + this._startCenter = p1.add(p2)._divideBy(2); + this._startDist = p1.distanceTo(p2); + + this._moved = false; + this._zooming = true; + + this._centerOffset = viewCenter.subtract(this._startCenter); + + if (map._panAnim) { + map._panAnim.stop(); + } + + L.DomEvent + .on(document, 'touchmove', this._onTouchMove, this) + .on(document, 'touchend', this._onTouchEnd, this); + + L.DomEvent.preventDefault(e); + }, + + _onTouchMove: function (e) { + if (!e.touches || e.touches.length !== 2) { return; } + + var map = this._map; + + var p1 = map.mouseEventToLayerPoint(e.touches[0]), + p2 = map.mouseEventToLayerPoint(e.touches[1]); + + this._scale = p1.distanceTo(p2) / this._startDist; + this._delta = p1._add(p2)._divideBy(2)._subtract(this._startCenter); + + if (this._scale === 1) { return; } + + if (!this._moved) { + L.DomUtil.addClass(map._mapPane, 'leaflet-zoom-anim leaflet-touching'); + + map + .fire('movestart') + .fire('zoomstart') + ._prepareTileBg(); + + this._moved = true; + } + + L.Util.cancelAnimFrame(this._animRequest); + this._animRequest = L.Util.requestAnimFrame( + this._updateOnMove, this, true, this._map._container); + + L.DomEvent.preventDefault(e); + }, + + _updateOnMove: function () { + var map = this._map, + origin = this._getScaleOrigin(), + center = map.layerPointToLatLng(origin); + + map.fire('zoomanim', { + center: center, + zoom: map.getScaleZoom(this._scale) + }); + + // Used 2 translates instead of transform-origin because of a very strange bug - + // it didn't count the origin on the first touch-zoom but worked correctly afterwards + + map._tileBg.style[L.DomUtil.TRANSFORM] = + L.DomUtil.getTranslateString(this._delta) + ' ' + + L.DomUtil.getScaleString(this._scale, this._startCenter); + }, + + _onTouchEnd: function () { + if (!this._moved || !this._zooming) { return; } + + var map = this._map; + + this._zooming = false; + L.DomUtil.removeClass(map._mapPane, 'leaflet-touching'); + + L.DomEvent + .off(document, 'touchmove', this._onTouchMove) + .off(document, 'touchend', this._onTouchEnd); + + var origin = this._getScaleOrigin(), + center = map.layerPointToLatLng(origin), + + oldZoom = map.getZoom(), + floatZoomDelta = map.getScaleZoom(this._scale) - oldZoom, + roundZoomDelta = (floatZoomDelta > 0 ? + Math.ceil(floatZoomDelta) : Math.floor(floatZoomDelta)), + + zoom = map._limitZoom(oldZoom + roundZoomDelta); + + map.fire('zoomanim', { + center: center, + zoom: zoom + }); + + map._runAnimation(center, zoom, map.getZoomScale(zoom) / this._scale, origin, true); + }, + + _getScaleOrigin: function () { + var centerOffset = this._centerOffset.subtract(this._delta).divideBy(this._scale); + return this._startCenter.add(centerOffset); + } +}); + +L.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom); + + +/* + * L.Handler.ShiftDragZoom is used to add shift-drag zoom interaction to the map + * (zoom to a selected bounding box), enabled by default. + */ + +L.Map.mergeOptions({ + boxZoom: true +}); + +L.Map.BoxZoom = L.Handler.extend({ + initialize: function (map) { + this._map = map; + this._container = map._container; + this._pane = map._panes.overlayPane; + }, + + addHooks: function () { + L.DomEvent.on(this._container, 'mousedown', this._onMouseDown, this); + }, + + removeHooks: function () { + L.DomEvent.off(this._container, 'mousedown', this._onMouseDown); + }, + + _onMouseDown: function (e) { + if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; } + + L.DomUtil.disableTextSelection(); + + this._startLayerPoint = this._map.mouseEventToLayerPoint(e); + + this._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._pane); + L.DomUtil.setPosition(this._box, this._startLayerPoint); + + //TODO refactor: move cursor to styles + this._container.style.cursor = 'crosshair'; + + L.DomEvent + .on(document, 'mousemove', this._onMouseMove, this) + .on(document, 'mouseup', this._onMouseUp, this) + .preventDefault(e); + + this._map.fire("boxzoomstart"); + }, + + _onMouseMove: function (e) { + var startPoint = this._startLayerPoint, + box = this._box, + + layerPoint = this._map.mouseEventToLayerPoint(e), + offset = layerPoint.subtract(startPoint), + + newPos = new L.Point( + Math.min(layerPoint.x, startPoint.x), + Math.min(layerPoint.y, startPoint.y)); + + L.DomUtil.setPosition(box, newPos); + + // TODO refactor: remove hardcoded 4 pixels + box.style.width = (Math.max(0, Math.abs(offset.x) - 4)) + 'px'; + box.style.height = (Math.max(0, Math.abs(offset.y) - 4)) + 'px'; + }, + + _onMouseUp: function (e) { + this._pane.removeChild(this._box); + this._container.style.cursor = ''; + + L.DomUtil.enableTextSelection(); + + L.DomEvent + .off(document, 'mousemove', this._onMouseMove) + .off(document, 'mouseup', this._onMouseUp); + + var map = this._map, + layerPoint = map.mouseEventToLayerPoint(e); + + if (this._startLayerPoint.equals(layerPoint)) { return; } + + var bounds = new L.LatLngBounds( + map.layerPointToLatLng(this._startLayerPoint), + map.layerPointToLatLng(layerPoint)); + + map.fitBounds(bounds); + + map.fire("boxzoomend", { + boxZoomBounds: bounds + }); + } +}); + +L.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom); + + +/* + * L.Map.Keyboard is handling keyboard interaction with the map, enabled by default. + */ + +L.Map.mergeOptions({ + keyboard: true, + keyboardPanOffset: 80, + keyboardZoomOffset: 1 +}); + +L.Map.Keyboard = L.Handler.extend({ + + keyCodes: { + left: [37], + right: [39], + down: [40], + up: [38], + zoomIn: [187, 107, 61], + zoomOut: [189, 109, 173] + }, + + initialize: function (map) { + this._map = map; + + this._setPanOffset(map.options.keyboardPanOffset); + this._setZoomOffset(map.options.keyboardZoomOffset); + }, + + addHooks: function () { + var container = this._map._container; + + // make the container focusable by tabbing + if (container.tabIndex === -1) { + container.tabIndex = "0"; + } + + L.DomEvent + .on(container, 'focus', this._onFocus, this) + .on(container, 'blur', this._onBlur, this) + .on(container, 'mousedown', this._onMouseDown, this); + + this._map + .on('focus', this._addHooks, this) + .on('blur', this._removeHooks, this); + }, + + removeHooks: function () { + this._removeHooks(); + + var container = this._map._container; + + L.DomEvent + .off(container, 'focus', this._onFocus, this) + .off(container, 'blur', this._onBlur, this) + .off(container, 'mousedown', this._onMouseDown, this); + + this._map + .off('focus', this._addHooks, this) + .off('blur', this._removeHooks, this); + }, + + _onMouseDown: function () { + if (!this._focused) { + this._map._container.focus(); + } + }, + + _onFocus: function () { + this._focused = true; + this._map.fire('focus'); + }, + + _onBlur: function () { + this._focused = false; + this._map.fire('blur'); + }, + + _setPanOffset: function (pan) { + var keys = this._panKeys = {}, + codes = this.keyCodes, + i, len; + + for (i = 0, len = codes.left.length; i < len; i++) { + keys[codes.left[i]] = [-1 * pan, 0]; + } + for (i = 0, len = codes.right.length; i < len; i++) { + keys[codes.right[i]] = [pan, 0]; + } + for (i = 0, len = codes.down.length; i < len; i++) { + keys[codes.down[i]] = [0, pan]; + } + for (i = 0, len = codes.up.length; i < len; i++) { + keys[codes.up[i]] = [0, -1 * pan]; + } + }, + + _setZoomOffset: function (zoom) { + var keys = this._zoomKeys = {}, + codes = this.keyCodes, + i, len; + + for (i = 0, len = codes.zoomIn.length; i < len; i++) { + keys[codes.zoomIn[i]] = zoom; + } + for (i = 0, len = codes.zoomOut.length; i < len; i++) { + keys[codes.zoomOut[i]] = -zoom; + } + }, + + _addHooks: function () { + L.DomEvent.on(document, 'keydown', this._onKeyDown, this); + }, + + _removeHooks: function () { + L.DomEvent.off(document, 'keydown', this._onKeyDown, this); + }, + + _onKeyDown: function (e) { + var key = e.keyCode, + map = this._map; + + if (this._panKeys.hasOwnProperty(key)) { + map.panBy(this._panKeys[key]); + + if (map.options.maxBounds) { + map.panInsideBounds(map.options.maxBounds); + } + + } else if (this._zoomKeys.hasOwnProperty(key)) { + map.setZoom(map.getZoom() + this._zoomKeys[key]); + + } else { + return; + } + + L.DomEvent.stop(e); + } +}); + +L.Map.addInitHook('addHandler', 'keyboard', L.Map.Keyboard); + + +/* + * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable. + */ + +L.Handler.MarkerDrag = L.Handler.extend({ + initialize: function (marker) { + this._marker = marker; + }, + + addHooks: function () { + var icon = this._marker._icon; + if (!this._draggable) { + this._draggable = new L.Draggable(icon, icon) + .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 () { + this._marker + .closePopup() + .fire('movestart') + .fire('dragstart'); + }, + + _onDrag: function () { + var marker = this._marker, + shadow = marker._shadow, + iconPos = L.DomUtil.getPosition(marker._icon), + latlng = marker._map.layerPointToLatLng(iconPos); + + // update shadow position + if (shadow) { + L.DomUtil.setPosition(shadow, iconPos); + } + + marker._latlng = latlng; + + marker + .fire('move', {latlng: latlng}) + .fire('drag'); + }, + + _onDragEnd: function () { + this._marker + .fire('moveend') + .fire('dragend'); + } +}); + + +/* + * L.Handler.PolyEdit is an editing handler for polylines and polygons. + */ + +L.Handler.PolyEdit = L.Handler.extend({ + options: { + icon: new L.DivIcon({ + iconSize: new L.Point(8, 8), + className: 'leaflet-div-icon leaflet-editing-icon' + }) + }, + + initialize: function (poly, options) { + this._poly = poly; + L.setOptions(this, options); + }, + + addHooks: function () { + if (this._poly._map) { + if (!this._markerGroup) { + this._initMarkers(); + } + this._poly._map.addLayer(this._markerGroup); + } + }, + + removeHooks: function () { + if (this._poly._map) { + this._poly._map.removeLayer(this._markerGroup); + delete this._markerGroup; + delete this._markers; + } + }, + + updateMarkers: function () { + this._markerGroup.clearLayers(); + this._initMarkers(); + }, + + _initMarkers: function () { + if (!this._markerGroup) { + this._markerGroup = new L.LayerGroup(); + } + this._markers = []; + + var latlngs = this._poly._latlngs, + i, j, len, marker; + + // TODO refactor holes implementation in Polygon to support it here + + for (i = 0, len = latlngs.length; i < len; i++) { + + marker = this._createMarker(latlngs[i], i); + marker.on('click', this._onMarkerClick, this); + this._markers.push(marker); + } + + var markerLeft, markerRight; + + for (i = 0, j = len - 1; i < len; j = i++) { + if (i === 0 && !(L.Polygon && (this._poly instanceof L.Polygon))) { + continue; + } + + markerLeft = this._markers[j]; + markerRight = this._markers[i]; + + this._createMiddleMarker(markerLeft, markerRight); + this._updatePrevNext(markerLeft, markerRight); + } + }, + + _createMarker: function (latlng, index) { + var marker = new L.Marker(latlng, { + draggable: true, + icon: this.options.icon + }); + + marker._origLatLng = latlng; + marker._index = index; + + marker.on('drag', this._onMarkerDrag, this); + marker.on('dragend', this._fireEdit, this); + + this._markerGroup.addLayer(marker); + + return marker; + }, + + _fireEdit: function () { + this._poly.fire('edit'); + }, + + _onMarkerDrag: function (e) { + var marker = e.target; + + L.extend(marker._origLatLng, marker._latlng); + + if (marker._middleLeft) { + marker._middleLeft.setLatLng(this._getMiddleLatLng(marker._prev, marker)); + } + if (marker._middleRight) { + marker._middleRight.setLatLng(this._getMiddleLatLng(marker, marker._next)); + } + + this._poly.redraw(); + }, + + _onMarkerClick: function (e) { + // we want to remove the marker on click, but if latlng count < 3, polyline would be invalid + if (this._poly._latlngs.length < 3) { return; } + + var marker = e.target, + i = marker._index; + + // remove the marker + this._markerGroup.removeLayer(marker); + this._markers.splice(i, 1); + this._poly.spliceLatLngs(i, 1); + this._updateIndexes(i, -1); + + // update prev/next links of adjacent markers + this._updatePrevNext(marker._prev, marker._next); + + // remove ghost markers near the removed marker + if (marker._middleLeft) { + this._markerGroup.removeLayer(marker._middleLeft); + } + if (marker._middleRight) { + this._markerGroup.removeLayer(marker._middleRight); + } + + // create a ghost marker in place of the removed one + if (marker._prev && marker._next) { + this._createMiddleMarker(marker._prev, marker._next); + + } else if (!marker._prev) { + marker._next._middleLeft = null; + + } else if (!marker._next) { + marker._prev._middleRight = null; + } + + this._poly.fire('edit'); + }, + + _updateIndexes: function (index, delta) { + this._markerGroup.eachLayer(function (marker) { + if (marker._index > index) { + marker._index += delta; + } + }); + }, + + _createMiddleMarker: function (marker1, marker2) { + var latlng = this._getMiddleLatLng(marker1, marker2), + marker = this._createMarker(latlng), + onClick, + onDragStart, + onDragEnd; + + marker.setOpacity(0.6); + + marker1._middleRight = marker2._middleLeft = marker; + + onDragStart = function () { + var i = marker2._index; + + marker._index = i; + + marker + .off('click', onClick) + .on('click', this._onMarkerClick, this); + + latlng.lat = marker.getLatLng().lat; + latlng.lng = marker.getLatLng().lng; + this._poly.spliceLatLngs(i, 0, latlng); + this._markers.splice(i, 0, marker); + + marker.setOpacity(1); + + this._updateIndexes(i, 1); + marker2._index++; + this._updatePrevNext(marker1, marker); + this._updatePrevNext(marker, marker2); + }; + + onDragEnd = function () { + marker.off('dragstart', onDragStart, this); + marker.off('dragend', onDragEnd, this); + + this._createMiddleMarker(marker1, marker); + this._createMiddleMarker(marker, marker2); + }; + + onClick = function () { + onDragStart.call(this); + onDragEnd.call(this); + this._poly.fire('edit'); + }; + + marker + .on('click', onClick, this) + .on('dragstart', onDragStart, this) + .on('dragend', onDragEnd, this); + + this._markerGroup.addLayer(marker); + }, + + _updatePrevNext: function (marker1, marker2) { + if (marker1) { + marker1._next = marker2; + } + if (marker2) { + marker2._prev = marker1; + } + }, + + _getMiddleLatLng: function (marker1, marker2) { + var map = this._poly._map, + p1 = map.latLngToLayerPoint(marker1.getLatLng()), + p2 = map.latLngToLayerPoint(marker2.getLatLng()); + + return map.layerPointToLatLng(p1._add(p2)._divideBy(2)); + } +}); + +L.Polyline.addInitHook(function () { + + if (L.Handler.PolyEdit) { + this.editing = new L.Handler.PolyEdit(this); + + if (this.options.editable) { + this.editing.enable(); + } + } + + this.on('add', function () { + if (this.editing && this.editing.enabled()) { + this.editing.addHooks(); + } + }); + + this.on('remove', function () { + if (this.editing && this.editing.enabled()) { + this.editing.removeHooks(); + } + }); +}); + + +/* + * L.Control is a base class for implementing map controls. Handles positioning. + * All other controls extend from this class. + */ + +L.Control = L.Class.extend({ + options: { + position: 'topright' + }, + + initialize: function (options) { + L.setOptions(this, options); + }, + + getPosition: function () { + return this.options.position; + }, + + setPosition: function (position) { + var map = this._map; + + if (map) { + map.removeControl(this); + } + + this.options.position = position; + + if (map) { + map.addControl(this); + } + + return this; + }, + + addTo: function (map) { + this._map = map; + + var container = this._container = this.onAdd(map), + pos = this.getPosition(), + corner = map._controlCorners[pos]; + + L.DomUtil.addClass(container, 'leaflet-control'); + + if (pos.indexOf('bottom') !== -1) { + corner.insertBefore(container, corner.firstChild); + } else { + corner.appendChild(container); + } + + return this; + }, + + removeFrom: function (map) { + var pos = this.getPosition(), + corner = map._controlCorners[pos]; + + corner.removeChild(this._container); + this._map = null; + + if (this.onRemove) { + this.onRemove(map); + } + + return this; + } +}); + +L.control = function (options) { + return new L.Control(options); +}; + + +/* + * Adds control-related methods to L.Map. + */ + +L.Map.include({ + addControl: function (control) { + control.addTo(this); + return this; + }, + + removeControl: function (control) { + control.removeFrom(this); + return this; + }, + + _initControlPos: function () { + var corners = this._controlCorners = {}, + l = 'leaflet-', + container = this._controlContainer = + L.DomUtil.create('div', l + 'control-container', this._container); + + function createCorner(vSide, hSide) { + var className = l + vSide + ' ' + l + hSide; + + corners[vSide + hSide] = L.DomUtil.create('div', className, container); + } + + createCorner('top', 'left'); + createCorner('top', 'right'); + createCorner('bottom', 'left'); + createCorner('bottom', 'right'); + } +}); + + +/* + * L.Control.Zoom is used for the default zoom buttons on the map. + */ + +L.Control.Zoom = L.Control.extend({ + options: { + position: 'topleft' + }, + + onAdd: function (map) { + var zoomName = 'leaflet-control-zoom', + barName = 'leaflet-bar', + partName = barName + '-part', + container = L.DomUtil.create('div', zoomName + ' ' + barName); + + this._map = map; + + this._zoomInButton = this._createButton('+', 'Zoom in', + zoomName + '-in ' + + partName + ' ' + + partName + '-top', + container, this._zoomIn, this); + + this._zoomOutButton = this._createButton('-', 'Zoom out', + zoomName + '-out ' + + partName + ' ' + + partName + '-bottom', + container, this._zoomOut, this); + + map.on('zoomend', this._updateDisabled, this); + + return container; + }, + + onRemove: function (map) { + map.off('zoomend', this._updateDisabled, this); + }, + + _zoomIn: function (e) { + this._map.zoomIn(e.shiftKey ? 3 : 1); + }, + + _zoomOut: function (e) { + this._map.zoomOut(e.shiftKey ? 3 : 1); + }, + + _createButton: function (html, title, className, container, fn, context) { + var link = L.DomUtil.create('a', className, container); + link.innerHTML = html; + link.href = '#'; + link.title = title; + + var stop = L.DomEvent.stopPropagation; + + L.DomEvent + .on(link, 'click', stop) + .on(link, 'mousedown', stop) + .on(link, 'dblclick', stop) + .on(link, 'click', L.DomEvent.preventDefault) + .on(link, 'click', fn, context); + + return link; + }, + + _updateDisabled: function () { + var map = this._map, + className = 'leaflet-control-zoom-disabled'; + + L.DomUtil.removeClass(this._zoomInButton, className); + L.DomUtil.removeClass(this._zoomOutButton, className); + + if (map._zoom === map.getMinZoom()) { + L.DomUtil.addClass(this._zoomOutButton, className); + } + if (map._zoom === map.getMaxZoom()) { + L.DomUtil.addClass(this._zoomInButton, className); + } + } +}); + +L.Map.mergeOptions({ + zoomControl: true +}); + +L.Map.addInitHook(function () { + if (this.options.zoomControl) { + this.zoomControl = new L.Control.Zoom(); + this.addControl(this.zoomControl); + } +}); + +L.control.zoom = function (options) { + return new L.Control.Zoom(options); +}; + + + +/* + * L.Control.Attribution is used for displaying attribution on the map (added by default). + */ + +L.Control.Attribution = L.Control.extend({ + options: { + position: 'bottomright', + prefix: 'Powered by <a href="http://leafletjs.com">Leaflet</a>' + }, + + initialize: function (options) { + L.setOptions(this, options); + + this._attributions = {}; + }, + + onAdd: function (map) { + this._container = L.DomUtil.create('div', 'leaflet-control-attribution'); + L.DomEvent.disableClickPropagation(this._container); + + map + .on('layeradd', this._onLayerAdd, this) + .on('layerremove', this._onLayerRemove, this); + + this._update(); + + return this._container; + }, + + onRemove: function (map) { + map + .off('layeradd', this._onLayerAdd) + .off('layerremove', this._onLayerRemove); + + }, + + setPrefix: function (prefix) { + this.options.prefix = prefix; + this._update(); + return this; + }, + + addAttribution: function (text) { + if (!text) { return; } + + if (!this._attributions[text]) { + this._attributions[text] = 0; + } + this._attributions[text]++; + + this._update(); + + return this; + }, + + removeAttribution: function (text) { + if (!text) { return; } + + this._attributions[text]--; + this._update(); + + return this; + }, + + _update: function () { + if (!this._map) { return; } + + var attribs = []; + + for (var i in this._attributions) { + if (this._attributions.hasOwnProperty(i) && this._attributions[i]) { + attribs.push(i); + } + } + + var prefixAndAttribs = []; + + if (this.options.prefix) { + prefixAndAttribs.push(this.options.prefix); + } + if (attribs.length) { + prefixAndAttribs.push(attribs.join(', ')); + } + + this._container.innerHTML = prefixAndAttribs.join(' — '); + }, + + _onLayerAdd: function (e) { + if (e.layer.getAttribution) { + this.addAttribution(e.layer.getAttribution()); + } + }, + + _onLayerRemove: function (e) { + if (e.layer.getAttribution) { + this.removeAttribution(e.layer.getAttribution()); + } + } +}); + +L.Map.mergeOptions({ + attributionControl: true +}); + +L.Map.addInitHook(function () { + if (this.options.attributionControl) { + this.attributionControl = (new L.Control.Attribution()).addTo(this); + } +}); + +L.control.attribution = function (options) { + return new L.Control.Attribution(options); +}; + + +/* + * L.Control.Scale is used for displaying metric/imperial scale on the map. + */ + +L.Control.Scale = L.Control.extend({ + options: { + position: 'bottomleft', + maxWidth: 100, + metric: true, + imperial: true, + updateWhenIdle: false + }, + + onAdd: function (map) { + this._map = map; + + var className = 'leaflet-control-scale', + container = L.DomUtil.create('div', className), + options = this.options; + + this._addScales(options, className, container); + + map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this); + map.whenReady(this._update, this); + + return container; + }, + + onRemove: function (map) { + map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this); + }, + + _addScales: function (options, className, container) { + if (options.metric) { + this._mScale = L.DomUtil.create('div', className + '-line', container); + } + if (options.imperial) { + this._iScale = L.DomUtil.create('div', className + '-line', container); + } + }, + + _update: function () { + var bounds = this._map.getBounds(), + centerLat = bounds.getCenter().lat, + halfWorldMeters = 6378137 * Math.PI * Math.cos(centerLat * Math.PI / 180), + dist = halfWorldMeters * (bounds.getNorthEast().lng - bounds.getSouthWest().lng) / 180, + + size = this._map.getSize(), + options = this.options, + maxMeters = 0; + + if (size.x > 0) { + maxMeters = dist * (options.maxWidth / size.x); + } + + this._updateScales(options, maxMeters); + }, + + _updateScales: function (options, maxMeters) { + if (options.metric && maxMeters) { + this._updateMetric(maxMeters); + } + + if (options.imperial && maxMeters) { + this._updateImperial(maxMeters); + } + }, + + _updateMetric: function (maxMeters) { + var meters = this._getRoundNum(maxMeters); + + this._mScale.style.width = this._getScaleWidth(meters / maxMeters) + 'px'; + this._mScale.innerHTML = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km'; + }, + + _updateImperial: function (maxMeters) { + var maxFeet = maxMeters * 3.2808399, + scale = this._iScale, + maxMiles, miles, feet; + + if (maxFeet > 5280) { + maxMiles = maxFeet / 5280; + miles = this._getRoundNum(maxMiles); + + scale.style.width = this._getScaleWidth(miles / maxMiles) + 'px'; + scale.innerHTML = miles + ' mi'; + + } else { + feet = this._getRoundNum(maxFeet); + + scale.style.width = this._getScaleWidth(feet / maxFeet) + 'px'; + scale.innerHTML = feet + ' ft'; + } + }, + + _getScaleWidth: function (ratio) { + return Math.round(this.options.maxWidth * ratio) - 10; + }, + + _getRoundNum: function (num) { + var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1), + d = num / pow10; + + d = d >= 10 ? 10 : d >= 5 ? 5 : d >= 3 ? 3 : d >= 2 ? 2 : 1; + + return pow10 * d; + } +}); + +L.control.scale = function (options) { + return new L.Control.Scale(options); +}; + + +/* + * L.Control.Layers is a control to allow users to switch between different layers on the map. + */ + +L.Control.Layers = L.Control.extend({ + options: { + collapsed: true, + position: 'topright', + autoZIndex: true + }, + + initialize: function (baseLayers, overlays, options) { + L.setOptions(this, options); + + this._layers = {}; + this._lastZIndex = 0; + this._handlingClick = false; + + for (var i in baseLayers) { + if (baseLayers.hasOwnProperty(i)) { + this._addLayer(baseLayers[i], i); + } + } + + for (i in overlays) { + if (overlays.hasOwnProperty(i)) { + this._addLayer(overlays[i], i, true); + } + } + }, + + onAdd: function (map) { + this._initLayout(); + this._update(); + + map + .on('layeradd', this._onLayerChange, this) + .on('layerremove', this._onLayerChange, this); + + return this._container; + }, + + onRemove: function (map) { + map + .off('layeradd', this._onLayerChange) + .off('layerremove', this._onLayerChange); + }, + + 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.stamp(layer); + delete this._layers[id]; + this._update(); + return this; + }, + + _initLayout: function () { + var className = 'leaflet-control-layers', + container = this._container = L.DomUtil.create('div', className); + + if (!L.Browser.touch) { + L.DomEvent.disableClickPropagation(container); + L.DomEvent.on(container, 'mousewheel', L.DomEvent.stopPropagation); + } else { + L.DomEvent.on(container, 'click', L.DomEvent.stopPropagation); + } + + var form = this._form = L.DomUtil.create('form', className + '-list'); + + if (this.options.collapsed) { + L.DomEvent + .on(container, 'mouseover', this._expand, this) + .on(container, 'mouseout', this._collapse, this); + + var link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container); + link.href = '#'; + link.title = 'Layers'; + + if (L.Browser.touch) { + L.DomEvent + .on(link, 'click', L.DomEvent.stopPropagation) + .on(link, 'click', L.DomEvent.preventDefault) + .on(link, 'click', this._expand, this); + } + else { + L.DomEvent.on(link, 'focus', this._expand, this); + } + + this._map.on('movestart', this._collapse, this); + // TODO keyboard accessibility + } else { + this._expand(); + } + + this._baseLayersList = L.DomUtil.create('div', className + '-base', form); + this._separator = L.DomUtil.create('div', className + '-separator', form); + this._overlaysList = L.DomUtil.create('div', className + '-overlays', form); + + container.appendChild(form); + }, + + _addLayer: function (layer, name, overlay) { + var id = L.stamp(layer); + + this._layers[id] = { + layer: layer, + name: name, + overlay: overlay + }; + + if (this.options.autoZIndex && layer.setZIndex) { + this._lastZIndex++; + layer.setZIndex(this._lastZIndex); + } + }, + + _update: function () { + if (!this._container) { + return; + } + + this._baseLayersList.innerHTML = ''; + this._overlaysList.innerHTML = ''; + + var baseLayersPresent = false, + overlaysPresent = false; + + for (var i in this._layers) { + if (this._layers.hasOwnProperty(i)) { + var obj = this._layers[i]; + this._addItem(obj); + overlaysPresent = overlaysPresent || obj.overlay; + baseLayersPresent = baseLayersPresent || !obj.overlay; + } + } + + this._separator.style.display = (overlaysPresent && baseLayersPresent ? '' : 'none'); + }, + + _onLayerChange: function (e) { + var id = L.stamp(e.layer); + + if (this._layers[id] && !this._handlingClick) { + this._update(); + } + }, + + // IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe) + _createRadioElement: function (name, checked) { + + var radioHtml = '<input type="radio" class="leaflet-control-layers-selector" name="' + name + '"'; + if (checked) { + radioHtml += ' checked="checked"'; + } + radioHtml += '/>'; + + var radioFragment = document.createElement('div'); + radioFragment.innerHTML = radioHtml; + + return radioFragment.firstChild; + }, + + _addItem: function (obj) { + var label = document.createElement('label'), + input, + checked = this._map.hasLayer(obj.layer); + + if (obj.overlay) { + input = document.createElement('input'); + input.type = 'checkbox'; + input.className = 'leaflet-control-layers-selector'; + input.defaultChecked = checked; + } else { + input = this._createRadioElement('leaflet-base-layers', checked); + } + + input.layerId = L.stamp(obj.layer); + + L.DomEvent.on(input, 'click', this._onInputClick, this); + + var name = document.createElement('span'); + name.innerHTML = ' ' + obj.name; + + label.appendChild(input); + label.appendChild(name); + + var container = obj.overlay ? this._overlaysList : this._baseLayersList; + container.appendChild(label); + + return label; + }, + + _onInputClick: function () { + var i, input, obj, + inputs = this._form.getElementsByTagName('input'), + inputsLen = inputs.length, + baseLayer; + + this._handlingClick = true; + + for (i = 0; i < inputsLen; i++) { + input = inputs[i]; + obj = this._layers[input.layerId]; + + if (input.checked && !this._map.hasLayer(obj.layer)) { + this._map.addLayer(obj.layer); + if (!obj.overlay) { + baseLayer = obj.layer; + } + } else if (!input.checked && this._map.hasLayer(obj.layer)) { + this._map.removeLayer(obj.layer); + } + } + + if (baseLayer) { + this._map.setZoom(this._map.getZoom()); + this._map.fire('baselayerchange', {layer: baseLayer}); + } + + this._handlingClick = false; + }, + + _expand: function () { + L.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded'); + }, + + _collapse: function () { + this._container.className = this._container.className.replace(' leaflet-control-layers-expanded', ''); + } +}); + +L.control.layers = function (baseLayers, overlays, options) { + return new L.Control.Layers(baseLayers, overlays, options); +}; + + +/* + * L.PosAnimation is used by Leaflet internally for pan animations. + */ + +L.PosAnimation = L.Class.extend({ + includes: L.Mixin.Events, + + run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number]) + this.stop(); + + this._el = el; + this._inProgress = true; + + this.fire('start'); + + el.style[L.DomUtil.TRANSITION] = 'all ' + (duration || 0.25) + + 's cubic-bezier(0,0,' + (easeLinearity || 0.5) + ',1)'; + + L.DomEvent.on(el, L.DomUtil.TRANSITION_END, this._onTransitionEnd, this); + L.DomUtil.setPosition(el, newPos); + + // toggle reflow, Chrome flickers for some reason if you don't do this + L.Util.falseFn(el.offsetWidth); + + // there's no native way to track value updates of transitioned properties, so we imitate this + this._stepTimer = setInterval(L.bind(this.fire, this, 'step'), 50); + }, + + stop: function () { + if (!this._inProgress) { return; } + + // if we just removed the transition property, the element would jump to its final position, + // so we need to make it stay at the current position + + L.DomUtil.setPosition(this._el, this._getPos()); + this._onTransitionEnd(); + L.Util.falseFn(this._el.offsetWidth); // force reflow in case we are about to start a new animation + }, + + // you can't easily get intermediate values of properties animated with CSS3 Transitions, + // we need to parse computed style (in case of transform it returns matrix string) + + _transformRe: /(-?[\d\.]+), (-?[\d\.]+)\)/, + + _getPos: function () { + var left, top, matches, + el = this._el, + style = window.getComputedStyle(el); + + if (L.Browser.any3d) { + matches = style[L.DomUtil.TRANSFORM].match(this._transformRe); + left = parseFloat(matches[1]); + top = parseFloat(matches[2]); + } else { + left = parseFloat(style.left); + top = parseFloat(style.top); + } + + return new L.Point(left, top, true); + }, + + _onTransitionEnd: function () { + L.DomEvent.off(this._el, L.DomUtil.TRANSITION_END, this._onTransitionEnd, this); + + if (!this._inProgress) { return; } + this._inProgress = false; + + this._el.style[L.DomUtil.TRANSITION] = ''; + + clearInterval(this._stepTimer); + + this.fire('step').fire('end'); + } + +}); + + +/* + * Extends L.Map to handle panning animations. + */ + +L.Map.include({ + + setView: function (center, zoom, forceReset) { + zoom = this._limitZoom(zoom); + + var zoomChanged = (this._zoom !== zoom); + + if (this._loaded && !forceReset && this._layers) { + + if (this._panAnim) { + this._panAnim.stop(); + } + + var done = (zoomChanged ? + this._zoomToIfClose && this._zoomToIfClose(center, zoom) : + this._panByIfClose(center)); + + // exit if animated pan or zoom started + if (done) { + clearTimeout(this._sizeTimer); + return this; + } + } + + // reset the map view + this._resetView(center, zoom); + + return this; + }, + + panBy: function (offset, duration, easeLinearity) { + offset = L.point(offset); + + if (!(offset.x || offset.y)) { + return this; + } + + if (!this._panAnim) { + this._panAnim = new L.PosAnimation(); + + this._panAnim.on({ + 'step': this._onPanTransitionStep, + 'end': this._onPanTransitionEnd + }, this); + } + + this.fire('movestart'); + + L.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim'); + + var newPos = L.DomUtil.getPosition(this._mapPane).subtract(offset)._round(); + this._panAnim.run(this._mapPane, newPos, duration || 0.25, easeLinearity); + + return this; + }, + + _onPanTransitionStep: function () { + this.fire('move'); + }, + + _onPanTransitionEnd: function () { + L.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim'); + this.fire('moveend'); + }, + + _panByIfClose: function (center) { + // difference between the new and current centers in pixels + var offset = this._getCenterOffset(center)._floor(); + + if (this._offsetIsWithinView(offset)) { + this.panBy(offset); + return true; + } + return false; + }, + + _offsetIsWithinView: function (offset, multiplyFactor) { + var m = multiplyFactor || 1, + size = this.getSize(); + + return (Math.abs(offset.x) <= size.x * m) && + (Math.abs(offset.y) <= size.y * m); + } +}); + + +/* + * L.PosAnimation fallback implementation that powers Leaflet pan animations + * in browsers that don't support CSS3 Transitions. + */ + +L.PosAnimation = L.DomUtil.TRANSITION ? L.PosAnimation : L.PosAnimation.extend({ + + run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number]) + this.stop(); + + this._el = el; + this._inProgress = true; + this._duration = duration || 0.25; + this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2); + + this._startPos = L.DomUtil.getPosition(el); + this._offset = newPos.subtract(this._startPos); + this._startTime = +new Date(); + + this.fire('start'); + + this._animate(); + }, + + stop: function () { + if (!this._inProgress) { return; } + + this._step(); + this._complete(); + }, + + _animate: function () { + // animation loop + this._animId = L.Util.requestAnimFrame(this._animate, this); + this._step(); + }, + + _step: function () { + var elapsed = (+new Date()) - this._startTime, + duration = this._duration * 1000; + + if (elapsed < duration) { + this._runFrame(this._easeOut(elapsed / duration)); + } else { + this._runFrame(1); + this._complete(); + } + }, + + _runFrame: function (progress) { + var pos = this._startPos.add(this._offset.multiplyBy(progress)); + L.DomUtil.setPosition(this._el, pos); + + this.fire('step'); + }, + + _complete: function () { + L.Util.cancelAnimFrame(this._animId); + + this._inProgress = false; + this.fire('end'); + }, + + _easeOut: function (t) { + return 1 - Math.pow(1 - t, this._easeOutPower); + } +}); + + +/* + * Extends L.Map to handle zoom animations. + */ + +L.Map.mergeOptions({ + zoomAnimation: L.DomUtil.TRANSITION && !L.Browser.android23 && !L.Browser.mobileOpera +}); + +if (L.DomUtil.TRANSITION) { + L.Map.addInitHook(function () { + L.DomEvent.on(this._mapPane, L.DomUtil.TRANSITION_END, this._catchTransitionEnd, this); + }); +} + +L.Map.include(!L.DomUtil.TRANSITION ? {} : { + + _zoomToIfClose: function (center, zoom) { + + if (this._animatingZoom) { return true; } + + if (!this.options.zoomAnimation) { return false; } + + var scale = this.getZoomScale(zoom), + offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale); + + // if offset does not exceed half of the view + if (!this._offsetIsWithinView(offset, 1)) { return false; } + + L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim'); + + this + .fire('movestart') + .fire('zoomstart'); + + this.fire('zoomanim', { + center: center, + zoom: zoom + }); + + var origin = this._getCenterLayerPoint().add(offset); + + this._prepareTileBg(); + this._runAnimation(center, zoom, scale, origin); + + return true; + }, + + _catchTransitionEnd: function () { + if (this._animatingZoom) { + this._onZoomTransitionEnd(); + } + }, + + _runAnimation: function (center, zoom, scale, origin, backwardsTransform) { + this._animateToCenter = center; + this._animateToZoom = zoom; + this._animatingZoom = true; + + if (L.Draggable) { + L.Draggable._disabled = true; + } + + var transform = L.DomUtil.TRANSFORM, + tileBg = this._tileBg; + + clearTimeout(this._clearTileBgTimer); + + L.Util.falseFn(tileBg.offsetWidth); //hack to make sure transform is updated before running animation + + var scaleStr = L.DomUtil.getScaleString(scale, origin), + oldTransform = tileBg.style[transform]; + + tileBg.style[transform] = backwardsTransform ? + oldTransform + ' ' + scaleStr : + scaleStr + ' ' + oldTransform; + }, + + _prepareTileBg: function () { + var tilePane = this._tilePane, + tileBg = this._tileBg; + + // If foreground layer doesn't have many tiles but bg layer does, keep the existing bg layer and just zoom it some more + if (tileBg && this._getLoadedTilesPercentage(tileBg) > 0.5 && + this._getLoadedTilesPercentage(tilePane) < 0.5) { + + tilePane.style.visibility = 'hidden'; + tilePane.empty = true; + this._stopLoadingImages(tilePane); + return; + } + + if (!tileBg) { + tileBg = this._tileBg = this._createPane('leaflet-tile-pane', this._mapPane); + tileBg.style.zIndex = 1; + } + + // prepare the background pane to become the main tile pane + tileBg.style[L.DomUtil.TRANSFORM] = ''; + tileBg.style.visibility = 'hidden'; + + // tells tile layers to reinitialize their containers + tileBg.empty = true; //new FG + tilePane.empty = false; //new BG + + //Switch out the current layer to be the new bg layer (And vice-versa) + this._tilePane = this._panes.tilePane = tileBg; + var newTileBg = this._tileBg = tilePane; + + L.DomUtil.addClass(newTileBg, 'leaflet-zoom-animated'); + + this._stopLoadingImages(newTileBg); + }, + + _getLoadedTilesPercentage: function (container) { + var tiles = container.getElementsByTagName('img'), + i, len, count = 0; + + for (i = 0, len = tiles.length; i < len; i++) { + if (tiles[i].complete) { + count++; + } + } + return count / len; + }, + + // stops loading all tiles in the background layer + _stopLoadingImages: function (container) { + var tiles = Array.prototype.slice.call(container.getElementsByTagName('img')), + i, len, tile; + + for (i = 0, len = tiles.length; i < len; i++) { + tile = tiles[i]; + + if (!tile.complete) { + tile.onload = L.Util.falseFn; + tile.onerror = L.Util.falseFn; + tile.src = L.Util.emptyImageUrl; + + tile.parentNode.removeChild(tile); + } + } + }, + + _onZoomTransitionEnd: function () { + this._restoreTileFront(); + + L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim'); + L.Util.falseFn(this._tileBg.offsetWidth); // force reflow + this._animatingZoom = false; + this._resetView(this._animateToCenter, this._animateToZoom, true, true); + + if (L.Draggable) { + L.Draggable._disabled = 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 using browser geolocation features. + */ + +L.Map.include({ + _defaultLocateOptions: { + watch: false, + setView: false, + maxZoom: Infinity, + timeout: 10000, + maximumAge: 0, + enableHighAccuracy: false + }, + + locate: function (/*Object*/ options) { + + options = this._locationOptions = L.extend(this._defaultLocateOptions, options); + + if (!navigator.geolocation) { + this._handleGeolocationError({ + code: 0, + message: "Geolocation not supported." + }); + return this; + } + + var onResponse = L.bind(this._handleGeolocationResponse, this), + onError = L.bind(this._handleGeolocationError, this); + + if (options.watch) { + this._locationWatchId = + navigator.geolocation.watchPosition(onResponse, onError, options); + } else { + navigator.geolocation.getCurrentPosition(onResponse, onError, options); + } + return this; + }, + + stopLocate: function () { + if (navigator.geolocation) { + navigator.geolocation.clearWatch(this._locationWatchId); + } + return this; + }, + + _handleGeolocationError: function (error) { + var c = error.code, + message = error.message || + (c === 1 ? "permission denied" : + (c === 2 ? "position unavailable" : "timeout")); + + if (this._locationOptions.setView && !this._loaded) { + this.fitWorld(); + } + + this.fire('locationerror', { + code: c, + message: "Geolocation error: " + message + "." + }); + }, + + _handleGeolocationResponse: function (pos) { + var latAccuracy = 180 * pos.coords.accuracy / 4e7, + lngAccuracy = latAccuracy * 2, + + lat = pos.coords.latitude, + lng = pos.coords.longitude, + latlng = new L.LatLng(lat, lng), + + sw = new L.LatLng(lat - latAccuracy, lng - lngAccuracy), + ne = new L.LatLng(lat + latAccuracy, lng + lngAccuracy), + bounds = new L.LatLngBounds(sw, ne), + + options = this._locationOptions; + + if (options.setView) { + var zoom = Math.min(this.getBoundsZoom(bounds), options.maxZoom); + this.setView(latlng, zoom); + } + + this.fire('locationfound', { + latlng: latlng, + bounds: bounds, + accuracy: pos.coords.accuracy + }); + } +}); + + +}(this, document)); |