-/*
- Leaflet 1.0.3, a JS library for interactive maps. http://leafletjs.com
- (c) 2010-2016 Vladimir Agafonkin, (c) 2010-2011 CloudMade
-*/
-(function (window, document, undefined) {
-var L = {
- version: "1.0.3"
-};
-
-function expose() {
- var oldL = window.L;
-
- L.noConflict = function () {
- window.L = oldL;
- return this;
- };
-
- window.L = L;
-}
-
-// define Leaflet for Node module pattern loaders, including Browserify
-if (typeof module === 'object' && typeof module.exports === 'object') {
- module.exports = L;
-
-// define Leaflet as an AMD module
-} else if (typeof define === 'function' && define.amd) {
- define(L);
-}
-
-// define Leaflet as a global L variable, saving the original L to restore later if needed
-if (typeof window !== 'undefined') {
- expose();
-}
+/* @preserve
+ * Leaflet 1.6.0, a JS library for interactive maps. http://leafletjs.com
+ * (c) 2010-2019 Vladimir Agafonkin, (c) 2010-2011 CloudMade
+ */
+(function (global, factory) {
+ typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+ typeof define === 'function' && define.amd ? define(['exports'], factory) :
+ (factory((global.L = {})));
+}(this, (function (exports) { 'use strict';
+var version = "1.6.0";
/*
* @namespace Util
* Various utility functions, used by Leaflet internally.
*/
-L.Util = {
+var freeze = Object.freeze;
+Object.freeze = function (obj) { return obj; };
- // @function extend(dest: Object, src?: Object): Object
- // Merges the properties of the `src` object (or multiple objects) into `dest` object and returns the latter. Has an `L.extend` shortcut.
- extend: function (dest) {
- var i, j, len, src;
+// @function extend(dest: Object, src?: Object): Object
+// Merges the properties of the `src` object (or multiple objects) into `dest` object and returns the latter. Has an `L.extend` shortcut.
+function extend(dest) {
+ var i, j, len, src;
- for (j = 1, len = arguments.length; j < len; j++) {
- src = arguments[j];
- for (i in src) {
- dest[i] = src[i];
- }
+ for (j = 1, len = arguments.length; j < len; j++) {
+ src = arguments[j];
+ for (i in src) {
+ dest[i] = src[i];
}
- return dest;
- },
-
- // @function create(proto: Object, properties?: Object): Object
- // Compatibility polyfill for [Object.create](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/create)
- create: Object.create || (function () {
- function F() {}
- return function (proto) {
- F.prototype = proto;
- return new F();
- };
- })(),
+ }
+ return dest;
+}
- // @function bind(fn: Function, …): Function
- // Returns a new function bound to the arguments passed, like [Function.prototype.bind](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/bind).
- // Has a `L.bind()` shortcut.
- bind: function (fn, obj) {
- var slice = Array.prototype.slice;
+// @function create(proto: Object, properties?: Object): Object
+// Compatibility polyfill for [Object.create](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/create)
+var create = Object.create || (function () {
+ function F() {}
+ return function (proto) {
+ F.prototype = proto;
+ return new F();
+ };
+})();
- if (fn.bind) {
- return fn.bind.apply(fn, slice.call(arguments, 1));
- }
+// @function bind(fn: Function, …): Function
+// Returns a new function bound to the arguments passed, like [Function.prototype.bind](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/bind).
+// Has a `L.bind()` shortcut.
+function bind(fn, obj) {
+ var slice = Array.prototype.slice;
- var args = slice.call(arguments, 2);
+ if (fn.bind) {
+ return fn.bind.apply(fn, slice.call(arguments, 1));
+ }
- return function () {
- return fn.apply(obj, args.length ? args.concat(slice.call(arguments)) : arguments);
- };
- },
+ var args = slice.call(arguments, 2);
- // @function stamp(obj: Object): Number
- // Returns the unique ID of an object, assiging it one if it doesn't have it.
- stamp: function (obj) {
- /*eslint-disable */
- obj._leaflet_id = obj._leaflet_id || ++L.Util.lastId;
- return obj._leaflet_id;
- /*eslint-enable */
- },
-
- // @property lastId: Number
- // Last unique ID used by [`stamp()`](#util-stamp)
- lastId: 0,
-
- // @function throttle(fn: Function, time: Number, context: Object): Function
- // Returns a function which executes function `fn` with the given scope `context`
- // (so that the `this` keyword refers to `context` inside `fn`'s code). The function
- // `fn` will be called no more than one time per given amount of `time`. The arguments
- // received by the bound function will be any arguments passed when binding the
- // function, followed by any arguments passed when invoking the bound function.
- // Has an `L.bind` shortcut.
- throttle: function (fn, time, context) {
- var lock, args, wrapperFn, later;
-
- later = function () {
- // reset lock and call if queued
- lock = false;
- if (args) {
- wrapperFn.apply(context, args);
- args = false;
- }
- };
+ return function () {
+ return fn.apply(obj, args.length ? args.concat(slice.call(arguments)) : arguments);
+ };
+}
- wrapperFn = function () {
- if (lock) {
- // called too soon, queue to call later
- args = arguments;
+// @property lastId: Number
+// Last unique ID used by [`stamp()`](#util-stamp)
+var lastId = 0;
+
+// @function stamp(obj: Object): Number
+// Returns the unique ID of an object, assigning it one if it doesn't have it.
+function stamp(obj) {
+ /*eslint-disable */
+ obj._leaflet_id = obj._leaflet_id || ++lastId;
+ return obj._leaflet_id;
+ /* eslint-enable */
+}
- } else {
- // call and lock until later
- fn.apply(context, arguments);
- setTimeout(later, time);
- lock = true;
- }
- };
+// @function throttle(fn: Function, time: Number, context: Object): Function
+// Returns a function which executes function `fn` with the given scope `context`
+// (so that the `this` keyword refers to `context` inside `fn`'s code). The function
+// `fn` will be called no more than one time per given amount of `time`. The arguments
+// received by the bound function will be any arguments passed when binding the
+// function, followed by any arguments passed when invoking the bound function.
+// Has an `L.throttle` shortcut.
+function throttle(fn, time, context) {
+ var lock, args, wrapperFn, later;
+
+ later = function () {
+ // reset lock and call if queued
+ lock = false;
+ if (args) {
+ wrapperFn.apply(context, args);
+ args = false;
+ }
+ };
- return wrapperFn;
- },
+ wrapperFn = function () {
+ if (lock) {
+ // called too soon, queue to call later
+ args = arguments;
- // @function wrapNum(num: Number, range: Number[], includeMax?: Boolean): Number
- // Returns the number `num` modulo `range` in such a way so it lies within
- // `range[0]` and `range[1]`. The returned value will be always smaller than
- // `range[1]` unless `includeMax` is set to `true`.
- wrapNum: function (x, range, includeMax) {
- var max = range[1],
- min = range[0],
- d = max - min;
- return x === max && includeMax ? x : ((x - min) % d + d) % d + min;
- },
+ } else {
+ // call and lock until later
+ fn.apply(context, arguments);
+ setTimeout(later, time);
+ lock = true;
+ }
+ };
- // @function falseFn(): Function
- // Returns a function which always returns `false`.
- falseFn: function () { return false; },
+ return wrapperFn;
+}
- // @function formatNum(num: Number, digits?: Number): Number
- // Returns the number `num` rounded to `digits` decimals, or to 5 decimals by default.
- formatNum: function (num, digits) {
- var pow = Math.pow(10, digits || 5);
- return Math.round(num * pow) / pow;
- },
+// @function wrapNum(num: Number, range: Number[], includeMax?: Boolean): Number
+// Returns the number `num` modulo `range` in such a way so it lies within
+// `range[0]` and `range[1]`. The returned value will be always smaller than
+// `range[1]` unless `includeMax` is set to `true`.
+function wrapNum(x, range, includeMax) {
+ var max = range[1],
+ min = range[0],
+ d = max - min;
+ return x === max && includeMax ? x : ((x - min) % d + d) % d + min;
+}
- // @function trim(str: String): String
- // Compatibility polyfill for [String.prototype.trim](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/Trim)
- trim: function (str) {
- return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, '');
- },
+// @function falseFn(): Function
+// Returns a function which always returns `false`.
+function falseFn() { return false; }
- // @function splitWords(str: String): String[]
- // Trims and splits the string on whitespace and returns the array of parts.
- splitWords: function (str) {
- return L.Util.trim(str).split(/\s+/);
- },
+// @function formatNum(num: Number, digits?: Number): Number
+// Returns the number `num` rounded to `digits` decimals, or to 6 decimals by default.
+function formatNum(num, digits) {
+ var pow = Math.pow(10, (digits === undefined ? 6 : digits));
+ return Math.round(num * pow) / pow;
+}
- // @function setOptions(obj: Object, options: Object): Object
- // Merges the given properties to the `options` of the `obj` object, returning the resulting options. See `Class options`. Has an `L.setOptions` shortcut.
- setOptions: function (obj, options) {
- if (!obj.hasOwnProperty('options')) {
- obj.options = obj.options ? L.Util.create(obj.options) : {};
- }
- for (var i in options) {
- obj.options[i] = options[i];
- }
- return obj.options;
- },
+// @function trim(str: String): String
+// Compatibility polyfill for [String.prototype.trim](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String/Trim)
+function trim(str) {
+ return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, '');
+}
- // @function getParamString(obj: Object, existingUrl?: String, uppercase?: Boolean): String
- // Converts an object into a parameter URL string, e.g. `{a: "foo", b: "bar"}`
- // translates to `'?a=foo&b=bar'`. If `existingUrl` is set, the parameters will
- // be appended at the end. If `uppercase` is `true`, the parameter names will
- // be uppercased (e.g. `'?A=foo&B=bar'`)
- getParamString: function (obj, existingUrl, uppercase) {
- var params = [];
- for (var i in obj) {
- params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i]));
- }
- return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&');
- },
+// @function splitWords(str: String): String[]
+// Trims and splits the string on whitespace and returns the array of parts.
+function splitWords(str) {
+ return trim(str).split(/\s+/);
+}
- // @function template(str: String, data: Object): String
- // Simple templating facility, accepts a template string of the form `'Hello {a}, {b}'`
- // and a data object like `{a: 'foo', b: 'bar'}`, returns evaluated string
- // `('Hello foo, bar')`. You can also specify functions instead of strings for
- // data values — they will be evaluated passing `data` as an argument.
- template: function (str, data) {
- return str.replace(L.Util.templateRe, function (str, key) {
- var value = data[key];
+// @function setOptions(obj: Object, options: Object): Object
+// Merges the given properties to the `options` of the `obj` object, returning the resulting options. See `Class options`. Has an `L.setOptions` shortcut.
+function setOptions(obj, options) {
+ if (!obj.hasOwnProperty('options')) {
+ obj.options = obj.options ? create(obj.options) : {};
+ }
+ for (var i in options) {
+ obj.options[i] = options[i];
+ }
+ return obj.options;
+}
- if (value === undefined) {
- throw new Error('No value provided for variable ' + str);
+// @function getParamString(obj: Object, existingUrl?: String, uppercase?: Boolean): String
+// Converts an object into a parameter URL string, e.g. `{a: "foo", b: "bar"}`
+// translates to `'?a=foo&b=bar'`. If `existingUrl` is set, the parameters will
+// be appended at the end. If `uppercase` is `true`, the parameter names will
+// be uppercased (e.g. `'?A=foo&B=bar'`)
+function getParamString(obj, existingUrl, uppercase) {
+ var params = [];
+ for (var i in obj) {
+ params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i]));
+ }
+ return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&');
+}
- } else if (typeof value === 'function') {
- value = value(data);
- }
- return value;
- });
- },
+var templateRe = /\{ *([\w_-]+) *\}/g;
- templateRe: /\{ *([\w_\-]+) *\}/g,
+// @function template(str: String, data: Object): String
+// Simple templating facility, accepts a template string of the form `'Hello {a}, {b}'`
+// and a data object like `{a: 'foo', b: 'bar'}`, returns evaluated string
+// `('Hello foo, bar')`. You can also specify functions instead of strings for
+// data values — they will be evaluated passing `data` as an argument.
+function template(str, data) {
+ return str.replace(templateRe, function (str, key) {
+ var value = data[key];
- // @function isArray(obj): Boolean
- // Compatibility polyfill for [Array.isArray](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray)
- isArray: Array.isArray || function (obj) {
- return (Object.prototype.toString.call(obj) === '[object Array]');
- },
+ if (value === undefined) {
+ throw new Error('No value provided for variable ' + str);
- // @function indexOf(array: Array, el: Object): Number
- // Compatibility polyfill for [Array.prototype.indexOf](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf)
- indexOf: function (array, el) {
- for (var i = 0; i < array.length; i++) {
- if (array[i] === el) { return i; }
+ } else if (typeof value === 'function') {
+ value = value(data);
}
- return -1;
- },
+ return value;
+ });
+}
- // @property emptyImageUrl: String
- // Data URI string containing a base64-encoded empty GIF image.
- // Used as a hack to free memory from unused images on WebKit-powered
- // mobile devices (by setting image `src` to this string).
- emptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='
+// @function isArray(obj): Boolean
+// Compatibility polyfill for [Array.isArray](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray)
+var isArray = Array.isArray || function (obj) {
+ return (Object.prototype.toString.call(obj) === '[object Array]');
};
-(function () {
- // inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/
-
- function getPrefixed(name) {
- return window['webkit' + name] || window['moz' + name] || window['ms' + name];
+// @function indexOf(array: Array, el: Object): Number
+// Compatibility polyfill for [Array.prototype.indexOf](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf)
+function indexOf(array, el) {
+ for (var i = 0; i < array.length; i++) {
+ if (array[i] === el) { return i; }
}
+ return -1;
+}
- var lastTime = 0;
-
- // fallback for IE 7-8
- function timeoutDefer(fn) {
- var time = +new Date(),
- timeToCall = Math.max(0, 16 - (time - lastTime));
+// @property emptyImageUrl: String
+// Data URI string containing a base64-encoded empty GIF image.
+// Used as a hack to free memory from unused images on WebKit-powered
+// mobile devices (by setting image `src` to this string).
+var emptyImageUrl = 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=';
- lastTime = time + timeToCall;
- return window.setTimeout(fn, timeToCall);
- }
+// inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/
- var requestFn = window.requestAnimationFrame || getPrefixed('RequestAnimationFrame') || timeoutDefer,
- cancelFn = window.cancelAnimationFrame || getPrefixed('CancelAnimationFrame') ||
- getPrefixed('CancelRequestAnimationFrame') || function (id) { window.clearTimeout(id); };
+function getPrefixed(name) {
+ return window['webkit' + name] || window['moz' + name] || window['ms' + name];
+}
+var lastTime = 0;
- // @function requestAnimFrame(fn: Function, context?: Object, immediate?: Boolean): Number
- // Schedules `fn` to be executed when the browser repaints. `fn` is bound to
- // `context` if given. When `immediate` is set, `fn` is called immediately if
- // the browser doesn't have native support for
- // [`window.requestAnimationFrame`](https://developer.mozilla.org/docs/Web/API/window/requestAnimationFrame),
- // otherwise it's delayed. Returns a request ID that can be used to cancel the request.
- L.Util.requestAnimFrame = function (fn, context, immediate) {
- if (immediate && requestFn === timeoutDefer) {
- fn.call(context);
- } else {
- return requestFn.call(window, L.bind(fn, context));
- }
- };
+// fallback for IE 7-8
+function timeoutDefer(fn) {
+ var time = +new Date(),
+ timeToCall = Math.max(0, 16 - (time - lastTime));
- // @function cancelAnimFrame(id: Number): undefined
- // Cancels a previous `requestAnimFrame`. See also [window.cancelAnimationFrame](https://developer.mozilla.org/docs/Web/API/window/cancelAnimationFrame).
- L.Util.cancelAnimFrame = function (id) {
- if (id) {
- cancelFn.call(window, id);
- }
- };
-})();
+ lastTime = time + timeToCall;
+ return window.setTimeout(fn, timeToCall);
+}
-// 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;
+var requestFn = window.requestAnimationFrame || getPrefixed('RequestAnimationFrame') || timeoutDefer;
+var cancelFn = window.cancelAnimationFrame || getPrefixed('CancelAnimationFrame') ||
+ getPrefixed('CancelRequestAnimationFrame') || function (id) { window.clearTimeout(id); };
+
+// @function requestAnimFrame(fn: Function, context?: Object, immediate?: Boolean): Number
+// Schedules `fn` to be executed when the browser repaints. `fn` is bound to
+// `context` if given. When `immediate` is set, `fn` is called immediately if
+// the browser doesn't have native support for
+// [`window.requestAnimationFrame`](https://developer.mozilla.org/docs/Web/API/window/requestAnimationFrame),
+// otherwise it's delayed. Returns a request ID that can be used to cancel the request.
+function requestAnimFrame(fn, context, immediate) {
+ if (immediate && requestFn === timeoutDefer) {
+ fn.call(context);
+ } else {
+ return requestFn.call(window, bind(fn, context));
+ }
+}
+// @function cancelAnimFrame(id: Number): undefined
+// Cancels a previous `requestAnimFrame`. See also [window.cancelAnimationFrame](https://developer.mozilla.org/docs/Web/API/window/cancelAnimationFrame).
+function cancelAnimFrame(id) {
+ if (id) {
+ cancelFn.call(window, id);
+ }
+}
+var Util = (Object.freeze || Object)({
+ freeze: freeze,
+ extend: extend,
+ create: create,
+ bind: bind,
+ lastId: lastId,
+ stamp: stamp,
+ throttle: throttle,
+ wrapNum: wrapNum,
+ falseFn: falseFn,
+ formatNum: formatNum,
+ trim: trim,
+ splitWords: splitWords,
+ setOptions: setOptions,
+ getParamString: getParamString,
+ template: template,
+ isArray: isArray,
+ indexOf: indexOf,
+ emptyImageUrl: emptyImageUrl,
+ requestFn: requestFn,
+ cancelFn: cancelFn,
+ requestAnimFrame: requestAnimFrame,
+ cancelAnimFrame: cancelAnimFrame
+});
// @class Class
// @aka L.Class
// Thanks to John Resig and Dean Edwards for inspiration!
-L.Class = function () {};
+function Class() {}
-L.Class.extend = function (props) {
+Class.extend = function (props) {
// @function extend(props: Object): Function
// [Extends the current class](#class-inheritance) given the properties to be included.
var parentProto = NewClass.__super__ = this.prototype;
- var proto = L.Util.create(parentProto);
+ var proto = create(parentProto);
proto.constructor = NewClass;
NewClass.prototype = proto;
// inherit parent's statics
for (var i in this) {
- if (this.hasOwnProperty(i) && i !== 'prototype') {
+ if (this.hasOwnProperty(i) && i !== 'prototype' && i !== '__super__') {
NewClass[i] = this[i];
}
}
// mix static properties into the class
if (props.statics) {
- L.extend(NewClass, props.statics);
+ extend(NewClass, props.statics);
delete props.statics;
}
// mix includes into the prototype
if (props.includes) {
- L.Util.extend.apply(null, [proto].concat(props.includes));
+ checkDeprecatedMixinEvents(props.includes);
+ extend.apply(null, [proto].concat(props.includes));
delete props.includes;
}
// merge options
if (proto.options) {
- props.options = L.Util.extend(L.Util.create(proto.options), props.options);
+ props.options = extend(create(proto.options), props.options);
}
// mix given properties into the prototype
- L.extend(proto, props);
+ extend(proto, props);
proto._initHooks = [];
// @function include(properties: Object): this
// [Includes a mixin](#class-includes) into the current class.
-L.Class.include = function (props) {
- L.extend(this.prototype, props);
+Class.include = function (props) {
+ extend(this.prototype, props);
return this;
};
// @function mergeOptions(options: Object): this
// [Merges `options`](#class-options) into the defaults of the class.
-L.Class.mergeOptions = function (options) {
- L.extend(this.prototype.options, options);
+Class.mergeOptions = function (options) {
+ extend(this.prototype.options, options);
return this;
};
// @function addInitHook(fn: Function): this
// Adds a [constructor hook](#class-constructor-hooks) to the class.
-L.Class.addInitHook = function (fn) { // (Function) || (String, args...)
+Class.addInitHook = function (fn) { // (Function) || (String, args...)
var args = Array.prototype.slice.call(arguments, 1);
var init = typeof fn === 'function' ? fn : function () {
return this;
};
+function checkDeprecatedMixinEvents(includes) {
+ if (typeof L === 'undefined' || !L || !L.Mixin) { return; }
+ includes = isArray(includes) ? includes : [includes];
+
+ for (var i = 0; i < includes.length; i++) {
+ if (includes[i] === L.Mixin.Events) {
+ console.warn('Deprecated include of L.Mixin.Events: ' +
+ 'this property will be removed in future releases, ' +
+ 'please inherit from L.Evented instead.', new Error().stack);
+ }
+ }
+}
/*
* @class Evented
* ```
*/
-
-L.Evented = L.Class.extend({
-
+var Events = {
/* @method on(type: String, fn: Function, context?: Object): this
* Adds a listener function (`fn`) to a particular event type of the object. You can optionally specify the context of the listener (object the this keyword will point to). You can also pass several space-separated types (e.g. `'click dblclick'`).
*
} else {
// types can be a string of space-separated words
- types = L.Util.splitWords(types);
+ types = splitWords(types);
for (var i = 0, len = types.length; i < len; i++) {
this._on(types[i], fn, context);
*
* @alternative
* @method off: this
- * Removes all listeners to all events on the object.
+ * Removes all listeners to all events on the object. This includes implicitly attached events.
*/
off: function (types, fn, context) {
}
} else {
- types = L.Util.splitWords(types);
+ types = splitWords(types);
for (var i = 0, len = types.length; i < len; i++) {
this._off(types[i], fn, context);
if (!fn) {
// Set all removed listeners to noop so they are not called if remove happens in fire
for (i = 0, len = listeners.length; i < len; i++) {
- listeners[i].fn = L.Util.falseFn;
+ listeners[i].fn = falseFn;
}
// clear all listeners for a type if function isn't specified
delete this._events[type];
if (l.fn === fn) {
// set the removed listener to noop so that's not called if remove happens in fire
- l.fn = L.Util.falseFn;
+ l.fn = falseFn;
if (this._firingCount) {
/* copy array in case events are being fired */
fire: function (type, data, propagate) {
if (!this.listens(type, propagate)) { return this; }
- var event = L.Util.extend({}, data, {type: type, target: this});
+ var event = extend({}, data, {
+ type: type,
+ target: this,
+ sourceTarget: data && data.sourceTarget || this
+ });
if (this._events) {
var listeners = this._events[type];
return this;
}
- var handler = L.bind(function () {
+ var handler = bind(function () {
this
.off(types, fn, context)
.off(types, handler, context);
// Adds an event parent - an `Evented` that will receive propagated events
addEventParent: function (obj) {
this._eventParents = this._eventParents || {};
- this._eventParents[L.stamp(obj)] = obj;
+ this._eventParents[stamp(obj)] = obj;
return this;
},
// Removes an event parent, so it will stop receiving propagated events
removeEventParent: function (obj) {
if (this._eventParents) {
- delete this._eventParents[L.stamp(obj)];
+ delete this._eventParents[stamp(obj)];
}
return this;
},
_propagateEvent: function (e) {
for (var id in this._eventParents) {
- this._eventParents[id].fire(e.type, L.extend({layer: e.target}, e), true);
+ this._eventParents[id].fire(e.type, extend({
+ layer: e.target,
+ propagatedFrom: e.target
+ }, e), true);
}
}
-});
-
-var proto = L.Evented.prototype;
+};
// aliases; we should ditch those eventually
// @method addEventListener(…): this
// Alias to [`on(…)`](#evented-on)
-proto.addEventListener = proto.on;
+Events.addEventListener = Events.on;
// @method removeEventListener(…): this
// Alias to [`off(…)`](#evented-off)
// @method clearAllEventListeners(…): this
// Alias to [`off()`](#evented-off)
-proto.removeEventListener = proto.clearAllEventListeners = proto.off;
+Events.removeEventListener = Events.clearAllEventListeners = Events.off;
// @method addOneTimeEventListener(…): this
// Alias to [`once(…)`](#evented-once)
-proto.addOneTimeEventListener = proto.once;
+Events.addOneTimeEventListener = Events.once;
// @method fireEvent(…): this
// Alias to [`fire(…)`](#evented-fire)
-proto.fireEvent = proto.fire;
+Events.fireEvent = Events.fire;
// @method hasEventListeners(…): Boolean
// Alias to [`listens(…)`](#evented-listens)
-proto.hasEventListeners = proto.listens;
-
-L.Mixin = {Events: proto};
-
-
-
-/*
- * @namespace Browser
- * @aka L.Browser
- *
- * A namespace with static properties for browser/feature detection used by Leaflet internally.
- *
- * @example
- *
- * ```js
- * if (L.Browser.ielt9) {
- * alert('Upgrade your browser, dude!');
- * }
- * ```
- */
-
-(function () {
-
- var ua = navigator.userAgent.toLowerCase(),
- doc = document.documentElement,
-
- ie = 'ActiveXObject' in window,
-
- webkit = ua.indexOf('webkit') !== -1,
- phantomjs = ua.indexOf('phantom') !== -1,
- android23 = ua.search('android [23]') !== -1,
- chrome = ua.indexOf('chrome') !== -1,
- gecko = ua.indexOf('gecko') !== -1 && !webkit && !window.opera && !ie,
-
- win = navigator.platform.indexOf('Win') === 0,
-
- mobile = typeof orientation !== 'undefined' || ua.indexOf('mobile') !== -1,
- msPointer = !window.PointerEvent && window.MSPointerEvent,
- pointer = window.PointerEvent || msPointer,
-
- ie3d = ie && ('transition' in doc.style),
- webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23,
- gecko3d = 'MozPerspective' in doc.style,
- opera12 = 'OTransition' in doc.style;
-
-
- var touch = !window.L_NO_TOUCH && (pointer || 'ontouchstart' in window ||
- (window.DocumentTouch && document instanceof window.DocumentTouch));
-
- L.Browser = {
-
- // @property ie: Boolean
- // `true` for all Internet Explorer versions (not Edge).
- ie: ie,
-
- // @property ielt9: Boolean
- // `true` for Internet Explorer versions less than 9.
- ielt9: ie && !document.addEventListener,
-
- // @property edge: Boolean
- // `true` for the Edge web browser.
- edge: 'msLaunchUri' in navigator && !('documentMode' in document),
-
- // @property webkit: Boolean
- // `true` for webkit-based browsers like Chrome and Safari (including mobile versions).
- webkit: webkit,
-
- // @property gecko: Boolean
- // `true` for gecko-based browsers like Firefox.
- gecko: gecko,
-
- // @property android: Boolean
- // `true` for any browser running on an Android platform.
- android: ua.indexOf('android') !== -1,
-
- // @property android23: Boolean
- // `true` for browsers running on Android 2 or Android 3.
- android23: android23,
-
- // @property chrome: Boolean
- // `true` for the Chrome browser.
- chrome: chrome,
-
- // @property safari: Boolean
- // `true` for the Safari browser.
- safari: !chrome && ua.indexOf('safari') !== -1,
-
-
- // @property win: Boolean
- // `true` when the browser is running in a Windows platform
- win: win,
-
-
- // @property ie3d: Boolean
- // `true` for all Internet Explorer versions supporting CSS transforms.
- ie3d: ie3d,
-
- // @property webkit3d: Boolean
- // `true` for webkit-based browsers supporting CSS transforms.
- webkit3d: webkit3d,
-
- // @property gecko3d: Boolean
- // `true` for gecko-based browsers supporting CSS transforms.
- gecko3d: gecko3d,
-
- // @property opera12: Boolean
- // `true` for the Opera browser supporting CSS transforms (version 12 or later).
- opera12: opera12,
-
- // @property any3d: Boolean
- // `true` for all browsers supporting CSS transforms.
- any3d: !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d) && !opera12 && !phantomjs,
-
-
- // @property mobile: Boolean
- // `true` for all browsers running in a mobile device.
- mobile: mobile,
-
- // @property mobileWebkit: Boolean
- // `true` for all webkit-based browsers in a mobile device.
- mobileWebkit: mobile && webkit,
-
- // @property mobileWebkit3d: Boolean
- // `true` for all webkit-based browsers in a mobile device supporting CSS transforms.
- mobileWebkit3d: mobile && webkit3d,
-
- // @property mobileOpera: Boolean
- // `true` for the Opera browser in a mobile device.
- mobileOpera: mobile && window.opera,
-
- // @property mobileGecko: Boolean
- // `true` for gecko-based browsers running in a mobile device.
- mobileGecko: mobile && gecko,
-
-
- // @property touch: Boolean
- // `true` for all browsers supporting [touch events](https://developer.mozilla.org/docs/Web/API/Touch_events).
- // This does not necessarily mean that the browser is running in a computer with
- // a touchscreen, it only means that the browser is capable of understanding
- // touch events.
- touch: !!touch,
-
- // @property msPointer: Boolean
- // `true` for browsers implementing the Microsoft touch events model (notably IE10).
- msPointer: !!msPointer,
-
- // @property pointer: Boolean
- // `true` for all browsers supporting [pointer events](https://msdn.microsoft.com/en-us/library/dn433244%28v=vs.85%29.aspx).
- pointer: !!pointer,
-
-
- // @property retina: Boolean
- // `true` for browsers on a high-resolution "retina" screen.
- retina: (window.devicePixelRatio || (window.screen.deviceXDPI / window.screen.logicalXDPI)) > 1
- };
-
-}());
-
+Events.hasEventListeners = Events.listens;
+var Evented = Class.extend(Events);
/*
* @class Point
* map.panBy([200, 300]);
* map.panBy(L.point(200, 300));
* ```
+ *
+ * Note that `Point` does not inherit from Leafet's `Class` object,
+ * which means new classes can't inherit from it, and new methods
+ * can't be added to it with the `include` function.
*/
-L.Point = function (x, y, round) {
+function Point(x, y, round) {
// @property x: Number; The `x` coordinate of the point
this.x = (round ? Math.round(x) : x);
// @property y: Number; The `y` coordinate of the point
this.y = (round ? Math.round(y) : y);
+}
+
+var trunc = Math.trunc || function (v) {
+ return v > 0 ? Math.floor(v) : Math.ceil(v);
};
-L.Point.prototype = {
+Point.prototype = {
// @method clone(): Point
// Returns a copy of the current point.
clone: function () {
- return new L.Point(this.x, this.y);
+ return new Point(this.x, this.y);
},
// @method add(otherPoint: Point): Point
// Returns the result of addition of the current and the given points.
add: function (point) {
// non-destructive, returns a new point
- return this.clone()._add(L.point(point));
+ return this.clone()._add(toPoint(point));
},
_add: function (point) {
// @method subtract(otherPoint: Point): Point
// Returns the result of subtraction of the given point from the current.
subtract: function (point) {
- return this.clone()._subtract(L.point(point));
+ return this.clone()._subtract(toPoint(point));
},
_subtract: function (point) {
// [scaling matrix](https://en.wikipedia.org/wiki/Scaling_%28geometry%29#Matrix_representation)
// defined by `scale`.
scaleBy: function (point) {
- return new L.Point(this.x * point.x, this.y * point.y);
+ return new Point(this.x * point.x, this.y * point.y);
},
// @method unscaleBy(scale: Point): Point
// Inverse of `scaleBy`. Divide each coordinate of the current point by
// each coordinate of `scale`.
unscaleBy: function (point) {
- return new L.Point(this.x / point.x, this.y / point.y);
+ return new Point(this.x / point.x, this.y / point.y);
},
// @method round(): Point
return this;
},
+ // @method trunc(): Point
+ // Returns a copy of the current point with truncated coordinates (rounded towards zero).
+ trunc: function () {
+ return this.clone()._trunc();
+ },
+
+ _trunc: function () {
+ this.x = trunc(this.x);
+ this.y = trunc(this.y);
+ return this;
+ },
+
// @method distanceTo(otherPoint: Point): Number
// Returns the cartesian distance between the current and the given points.
distanceTo: function (point) {
- point = L.point(point);
+ point = toPoint(point);
var x = point.x - this.x,
y = point.y - this.y;
// @method equals(otherPoint: Point): Boolean
// Returns `true` if the given point has the same coordinates.
equals: function (point) {
- point = L.point(point);
+ point = toPoint(point);
return point.x === this.x &&
point.y === this.y;
// @method contains(otherPoint: Point): Boolean
// Returns `true` if both coordinates of the given point are less than the corresponding current point coordinates (in absolute values).
contains: function (point) {
- point = L.point(point);
+ point = toPoint(point);
return Math.abs(point.x) <= Math.abs(this.x) &&
Math.abs(point.y) <= Math.abs(this.y);
// Returns a string representation of the point for debugging purposes.
toString: function () {
return 'Point(' +
- L.Util.formatNum(this.x) + ', ' +
- L.Util.formatNum(this.y) + ')';
+ formatNum(this.x) + ', ' +
+ formatNum(this.y) + ')';
}
};
// @alternative
// @factory L.point(coords: Object)
// Expects a plain object of the form `{x: Number, y: Number}` instead.
-L.point = function (x, y, round) {
- if (x instanceof L.Point) {
+function toPoint(x, y, round) {
+ if (x instanceof Point) {
return x;
}
- if (L.Util.isArray(x)) {
- return new L.Point(x[0], x[1]);
+ if (isArray(x)) {
+ return new Point(x[0], x[1]);
}
if (x === undefined || x === null) {
return x;
}
if (typeof x === 'object' && 'x' in x && 'y' in x) {
- return new L.Point(x.x, x.y);
+ return new Point(x.x, x.y);
}
- return new L.Point(x, y, round);
-};
-
-
+ return new Point(x, y, round);
+}
/*
* @class Bounds
* ```js
* otherBounds.intersects([[10, 10], [40, 60]]);
* ```
+ *
+ * Note that `Bounds` does not inherit from Leafet's `Class` object,
+ * which means new classes can't inherit from it, and new methods
+ * can't be added to it with the `include` function.
*/
-L.Bounds = function (a, b) {
+function Bounds(a, b) {
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 = {
+Bounds.prototype = {
// @method extend(point: Point): this
// Extends the bounds to contain the given point.
extend: function (point) { // (Point)
- point = L.point(point);
+ point = toPoint(point);
// @property min: Point
// The top left corner of the rectangle.
// @method getCenter(round?: Boolean): Point
// Returns the center point of the bounds.
getCenter: function (round) {
- return new L.Point(
+ return new Point(
(this.min.x + this.max.x) / 2,
(this.min.y + this.max.y) / 2, round);
},
// @method getBottomLeft(): Point
// Returns the bottom-left point of the bounds.
getBottomLeft: function () {
- return new L.Point(this.min.x, this.max.y);
+ return new Point(this.min.x, this.max.y);
},
// @method getTopRight(): Point
// Returns the top-right point of the bounds.
getTopRight: function () { // -> Point
- return new L.Point(this.max.x, this.min.y);
+ return new Point(this.max.x, this.min.y);
+ },
+
+ // @method getTopLeft(): Point
+ // Returns the top-left point of the bounds (i.e. [`this.min`](#bounds-min)).
+ getTopLeft: function () {
+ return this.min; // left, top
+ },
+
+ // @method getBottomRight(): Point
+ // Returns the bottom-right point of the bounds (i.e. [`this.max`](#bounds-max)).
+ getBottomRight: function () {
+ return this.max; // right, bottom
},
// @method getSize(): Point
contains: function (obj) {
var min, max;
- if (typeof obj[0] === 'number' || obj instanceof L.Point) {
- obj = L.point(obj);
+ if (typeof obj[0] === 'number' || obj instanceof Point) {
+ obj = toPoint(obj);
} else {
- obj = L.bounds(obj);
+ obj = toBounds(obj);
}
- if (obj instanceof L.Bounds) {
+ if (obj instanceof Bounds) {
min = obj.min;
max = obj.max;
} else {
// Returns `true` if the rectangle intersects the given bounds. Two bounds
// intersect if they have at least one point in common.
intersects: function (bounds) { // (Bounds) -> Boolean
- bounds = L.bounds(bounds);
+ bounds = toBounds(bounds);
var min = this.min,
max = this.max,
// Returns `true` if the rectangle overlaps the given bounds. Two bounds
// overlap if their intersection is an area.
overlaps: function (bounds) { // (Bounds) -> Boolean
- bounds = L.bounds(bounds);
+ bounds = toBounds(bounds);
var min = this.min,
max = this.max,
};
-// @factory L.bounds(topLeft: Point, bottomRight: Point)
-// Creates a Bounds object from two coordinates (usually top-left and bottom-right corners).
+// @factory L.bounds(corner1: Point, corner2: Point)
+// Creates a Bounds object from two corners coordinate pairs.
// @alternative
// @factory L.bounds(points: Point[])
-// Creates a Bounds object from the points it contains
-L.bounds = function (a, b) {
- if (!a || a instanceof L.Bounds) {
+// Creates a Bounds object from the given array of points.
+function toBounds(a, b) {
+ if (!a || a instanceof Bounds) {
return a;
}
- return new L.Bounds(a, b);
-};
-
-
+ return new Bounds(a, b);
+}
/*
- * @class Transformation
- * @aka L.Transformation
+ * @class LatLngBounds
+ * @aka L.LatLngBounds
*
- * Represents an affine transformation: a set of coefficients `a`, `b`, `c`, `d`
- * for transforming a point of a form `(x, y)` into `(a*x + b, c*y + d)` and doing
- * the reverse. Used by Leaflet in its projections code.
+ * Represents a rectangular geographical area on a map.
*
* @example
*
* ```js
- * var transformation = new L.Transformation(2, 5, -1, 10),
- * p = L.point(1, 2),
- * p2 = transformation.transform(p), // L.point(7, 8)
- * p3 = transformation.untransform(p2); // L.point(1, 2)
+ * var corner1 = L.latLng(40.712, -74.227),
+ * corner2 = L.latLng(40.774, -74.125),
+ * bounds = L.latLngBounds(corner1, corner2);
+ * ```
+ *
+ * All Leaflet methods that accept LatLngBounds objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this:
+ *
+ * ```js
+ * map.fitBounds([
+ * [40.712, -74.227],
+ * [40.774, -74.125]
+ * ]);
* ```
+ *
+ * Caution: if the area crosses the antimeridian (often confused with the International Date Line), you must specify corners _outside_ the [-180, 180] degrees longitude range.
+ *
+ * Note that `LatLngBounds` does not inherit from Leafet's `Class` object,
+ * which means new classes can't inherit from it, and new methods
+ * can't be added to it with the `include` function.
*/
+function LatLngBounds(corner1, corner2) { // (LatLng, LatLng) or (LatLng[])
+ if (!corner1) { return; }
-// factory new L.Transformation(a: Number, b: Number, c: Number, d: Number)
-// Creates a `Transformation` object with the given coefficients.
-L.Transformation = function (a, b, c, d) {
- this._a = a;
- this._b = b;
- this._c = c;
- this._d = d;
-};
+ var latlngs = corner2 ? [corner1, corner2] : corner1;
-L.Transformation.prototype = {
- // @method transform(point: Point, scale?: Number): Point
- // Returns a transformed point, optionally multiplied by the given scale.
- // Only accepts actual `L.Point` instances, not arrays.
- transform: function (point, scale) { // (Point, Number) -> Point
- return this._transform(point.clone(), scale);
- },
+ for (var i = 0, len = latlngs.length; i < len; i++) {
+ this.extend(latlngs[i]);
+ }
+}
- // 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;
- },
+LatLngBounds.prototype = {
- // @method untransform(point: Point, scale?: Number): Point
- // Returns the reverse transformation of the given point, optionally divided
- // by the given scale. Only accepts actual `L.Point` instances, not arrays.
- 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);
- }
-};
+ // @method extend(latlng: LatLng): this
+ // Extend the bounds to contain the given point
+ // @alternative
+ // @method extend(otherBounds: LatLngBounds): this
+ // Extend the bounds to contain the given bounds
+ extend: function (obj) {
+ var sw = this._southWest,
+ ne = this._northEast,
+ sw2, ne2;
+ if (obj instanceof LatLng) {
+ sw2 = obj;
+ ne2 = obj;
-/*
- * @namespace DomUtil
- *
- * Utility functions to work with the [DOM](https://developer.mozilla.org/docs/Web/API/Document_Object_Model)
- * tree, used by Leaflet internally.
- *
- * Most functions expecting or returning a `HTMLElement` also work for
- * SVG elements. The only difference is that classes refer to CSS classes
- * in HTML and SVG classes in SVG.
- */
-
-L.DomUtil = {
-
- // @function get(id: String|HTMLElement): HTMLElement
- // Returns an element given its DOM id, or returns the element itself
- // if it was passed directly.
- get: function (id) {
- return typeof id === 'string' ? document.getElementById(id) : id;
- },
-
- // @function getStyle(el: HTMLElement, styleAttrib: String): String
- // Returns the value for a certain style attribute on an element,
- // including computed values or values set through CSS.
- getStyle: function (el, style) {
+ } else if (obj instanceof LatLngBounds) {
+ sw2 = obj._southWest;
+ ne2 = obj._northEast;
- var value = el.style[style] || (el.currentStyle && el.currentStyle[style]);
+ if (!sw2 || !ne2) { return this; }
- if ((!value || value === 'auto') && document.defaultView) {
- var css = document.defaultView.getComputedStyle(el, null);
- value = css ? css[style] : null;
+ } else {
+ return obj ? this.extend(toLatLng(obj) || toLatLngBounds(obj)) : this;
}
- return value === 'auto' ? null : value;
- },
-
- // @function create(tagName: String, className?: String, container?: HTMLElement): HTMLElement
- // Creates an HTML element with `tagName`, sets its class to `className`, and optionally appends it to `container` element.
- create: function (tagName, className, container) {
-
- var el = document.createElement(tagName);
- el.className = className || '';
-
- if (container) {
- container.appendChild(el);
+ if (!sw && !ne) {
+ this._southWest = new LatLng(sw2.lat, sw2.lng);
+ this._northEast = new LatLng(ne2.lat, ne2.lng);
+ } else {
+ sw.lat = Math.min(sw2.lat, sw.lat);
+ sw.lng = Math.min(sw2.lng, sw.lng);
+ ne.lat = Math.max(ne2.lat, ne.lat);
+ ne.lng = Math.max(ne2.lng, ne.lng);
}
- return el;
+ return this;
},
- // @function remove(el: HTMLElement)
- // Removes `el` from its parent element
- remove: function (el) {
- var parent = el.parentNode;
- if (parent) {
- parent.removeChild(el);
- }
- },
+ // @method pad(bufferRatio: Number): LatLngBounds
+ // Returns bounds created by extending or retracting the current bounds by a given ratio in each direction.
+ // For example, a ratio of 0.5 extends the bounds by 50% in each direction.
+ // Negative values will retract the bounds.
+ pad: function (bufferRatio) {
+ var sw = this._southWest,
+ ne = this._northEast,
+ heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio,
+ widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio;
- // @function empty(el: HTMLElement)
- // Removes all of `el`'s children elements from `el`
- empty: function (el) {
- while (el.firstChild) {
- el.removeChild(el.firstChild);
- }
+ return new LatLngBounds(
+ new LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer),
+ new LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer));
},
- // @function toFront(el: HTMLElement)
- // Makes `el` the last children of its parent, so it renders in front of the other children.
- toFront: function (el) {
- el.parentNode.appendChild(el);
+ // @method getCenter(): LatLng
+ // Returns the center point of the bounds.
+ getCenter: function () {
+ return new LatLng(
+ (this._southWest.lat + this._northEast.lat) / 2,
+ (this._southWest.lng + this._northEast.lng) / 2);
},
- // @function toBack(el: HTMLElement)
- // Makes `el` the first children of its parent, so it renders back from the other children.
- toBack: function (el) {
- var parent = el.parentNode;
- parent.insertBefore(el, parent.firstChild);
+ // @method getSouthWest(): LatLng
+ // Returns the south-west point of the bounds.
+ getSouthWest: function () {
+ return this._southWest;
},
- // @function hasClass(el: HTMLElement, name: String): Boolean
- // Returns `true` if the element's class attribute contains `name`.
- hasClass: function (el, name) {
- if (el.classList !== undefined) {
- return el.classList.contains(name);
- }
- var className = L.DomUtil.getClass(el);
- return className.length > 0 && new RegExp('(^|\\s)' + name + '(\\s|$)').test(className);
+ // @method getNorthEast(): LatLng
+ // Returns the north-east point of the bounds.
+ getNorthEast: function () {
+ return this._northEast;
},
- // @function addClass(el: HTMLElement, name: String)
- // Adds `name` to the element's class attribute.
- addClass: function (el, name) {
- if (el.classList !== undefined) {
- var classes = L.Util.splitWords(name);
- for (var i = 0, len = classes.length; i < len; i++) {
- el.classList.add(classes[i]);
- }
- } else if (!L.DomUtil.hasClass(el, name)) {
- var className = L.DomUtil.getClass(el);
- L.DomUtil.setClass(el, (className ? className + ' ' : '') + name);
- }
+ // @method getNorthWest(): LatLng
+ // Returns the north-west point of the bounds.
+ getNorthWest: function () {
+ return new LatLng(this.getNorth(), this.getWest());
},
- // @function removeClass(el: HTMLElement, name: String)
- // Removes `name` from the element's class attribute.
- removeClass: function (el, name) {
- if (el.classList !== undefined) {
- el.classList.remove(name);
- } else {
- L.DomUtil.setClass(el, L.Util.trim((' ' + L.DomUtil.getClass(el) + ' ').replace(' ' + name + ' ', ' ')));
- }
+ // @method getSouthEast(): LatLng
+ // Returns the south-east point of the bounds.
+ getSouthEast: function () {
+ return new LatLng(this.getSouth(), this.getEast());
},
- // @function setClass(el: HTMLElement, name: String)
- // Sets the element's class.
- setClass: function (el, name) {
- if (el.className.baseVal === undefined) {
- el.className = name;
- } else {
- // in case of SVG element
- el.className.baseVal = name;
- }
+ // @method getWest(): Number
+ // Returns the west longitude of the bounds
+ getWest: function () {
+ return this._southWest.lng;
},
- // @function getClass(el: HTMLElement): String
- // Returns the element's class.
- getClass: function (el) {
- return el.className.baseVal === undefined ? el.className : el.className.baseVal;
+ // @method getSouth(): Number
+ // Returns the south latitude of the bounds
+ getSouth: function () {
+ return this._southWest.lat;
},
- // @function setOpacity(el: HTMLElement, opacity: Number)
- // Set the opacity of an element (including old IE support).
- // `opacity` must be a number from `0` to `1`.
- setOpacity: function (el, value) {
-
- if ('opacity' in el.style) {
- el.style.opacity = value;
+ // @method getEast(): Number
+ // Returns the east longitude of the bounds
+ getEast: function () {
+ return this._northEast.lng;
+ },
- } else if ('filter' in el.style) {
- L.DomUtil._setOpacityIE(el, value);
- }
+ // @method getNorth(): Number
+ // Returns the north latitude of the bounds
+ getNorth: function () {
+ return this._northEast.lat;
},
- _setOpacityIE: function (el, value) {
- var filter = false,
- filterName = 'DXImageTransform.Microsoft.Alpha';
+ // @method contains(otherBounds: LatLngBounds): Boolean
+ // Returns `true` if the rectangle contains the given one.
- // filters collection throws an error if we try to retrieve a filter that doesn't exist
- try {
- filter = el.filters.item(filterName);
- } catch (e) {
- // don't set opacity to 1 if we haven't already set an opacity,
- // it isn't needed and breaks transparent pngs.
- if (value === 1) { return; }
+ // @alternative
+ // @method contains (latlng: LatLng): Boolean
+ // Returns `true` if the rectangle contains the given point.
+ contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean
+ if (typeof obj[0] === 'number' || obj instanceof LatLng || 'lat' in obj) {
+ obj = toLatLng(obj);
+ } else {
+ obj = toLatLngBounds(obj);
}
- value = Math.round(value * 100);
+ var sw = this._southWest,
+ ne = this._northEast,
+ sw2, ne2;
- if (filter) {
- filter.Enabled = (value !== 100);
- filter.Opacity = value;
+ if (obj instanceof LatLngBounds) {
+ sw2 = obj.getSouthWest();
+ ne2 = obj.getNorthEast();
} else {
- el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')';
+ sw2 = ne2 = obj;
}
- },
-
- // @function testProp(props: String[]): String|false
- // Goes through the array of style names and returns the first name
- // that is a valid style name for an element. If no such name is found,
- // it returns false. Useful for vendor-prefixed styles like `transform`.
- 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;
+ return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) &&
+ (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng);
},
- // @function setTransform(el: HTMLElement, offset: Point, scale?: Number)
- // Resets the 3D CSS transform of `el` so it is translated by `offset` pixels
- // and optionally scaled by `scale`. Does not have an effect if the
- // browser doesn't support 3D CSS transforms.
- setTransform: function (el, offset, scale) {
- var pos = offset || new L.Point(0, 0);
-
- el.style[L.DomUtil.TRANSFORM] =
- (L.Browser.ie3d ?
- 'translate(' + pos.x + 'px,' + pos.y + 'px)' :
- 'translate3d(' + pos.x + 'px,' + pos.y + 'px,0)') +
- (scale ? ' scale(' + scale + ')' : '');
- },
+ // @method intersects(otherBounds: LatLngBounds): Boolean
+ // Returns `true` if the rectangle intersects the given bounds. Two bounds intersect if they have at least one point in common.
+ intersects: function (bounds) {
+ bounds = toLatLngBounds(bounds);
- // @function setPosition(el: HTMLElement, position: Point)
- // Sets the position of `el` to coordinates specified by `position`,
- // using CSS translate or top/left positioning depending on the browser
- // (used by Leaflet internally to position its layers).
- setPosition: function (el, point) { // (HTMLElement, Point[, Boolean])
+ var sw = this._southWest,
+ ne = this._northEast,
+ sw2 = bounds.getSouthWest(),
+ ne2 = bounds.getNorthEast(),
- /*eslint-disable */
- el._leaflet_pos = point;
- /*eslint-enable */
+ latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat),
+ lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng);
- if (L.Browser.any3d) {
- L.DomUtil.setTransform(el, point);
- } else {
- el.style.left = point.x + 'px';
- el.style.top = point.y + 'px';
- }
+ return latIntersects && lngIntersects;
},
- // @function getPosition(el: HTMLElement): Point
- // Returns the coordinates of an element previously positioned with setPosition.
- 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 || new L.Point(0, 0);
- }
-};
-
-
-(function () {
- // prefix style property names
+ // @method overlaps(otherBounds: Bounds): Boolean
+ // Returns `true` if the rectangle overlaps the given bounds. Two bounds overlap if their intersection is an area.
+ overlaps: function (bounds) {
+ bounds = toLatLngBounds(bounds);
- // @property TRANSFORM: String
- // Vendor-prefixed fransform style name (e.g. `'webkitTransform'` for WebKit).
- L.DomUtil.TRANSFORM = L.DomUtil.testProp(
- ['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']);
+ var sw = this._southWest,
+ ne = this._northEast,
+ sw2 = bounds.getSouthWest(),
+ ne2 = bounds.getNorthEast(),
+ latOverlaps = (ne2.lat > sw.lat) && (sw2.lat < ne.lat),
+ lngOverlaps = (ne2.lng > sw.lng) && (sw2.lng < ne.lng);
- // 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
+ return latOverlaps && lngOverlaps;
+ },
- // @property TRANSITION: String
- // Vendor-prefixed transform style name.
- var transition = L.DomUtil.TRANSITION = L.DomUtil.testProp(
- ['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']);
+ // @method toBBoxString(): String
+ // Returns a string with bounding box coordinates in a 'southwest_lng,southwest_lat,northeast_lng,northeast_lat' format. Useful for sending requests to web services that return geo data.
+ toBBoxString: function () {
+ return [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(',');
+ },
- L.DomUtil.TRANSITION_END =
- transition === 'webkitTransition' || transition === 'OTransition' ? transition + 'End' : 'transitionend';
+ // @method equals(otherBounds: LatLngBounds, maxMargin?: Number): Boolean
+ // Returns `true` if the rectangle is equivalent (within a small margin of error) to the given bounds. The margin of error can be overridden by setting `maxMargin` to a small number.
+ equals: function (bounds, maxMargin) {
+ if (!bounds) { return false; }
- // @function disableTextSelection()
- // Prevents the user from generating `selectstart` DOM events, usually generated
- // when the user drags the mouse through a page with text. Used internally
- // by Leaflet to override the behaviour of any click-and-drag interaction on
- // the map. Affects drag interactions on the whole document.
+ bounds = toLatLngBounds(bounds);
- // @function enableTextSelection()
- // Cancels the effects of a previous [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection).
- if ('onselectstart' in document) {
- L.DomUtil.disableTextSelection = function () {
- L.DomEvent.on(window, 'selectstart', L.DomEvent.preventDefault);
- };
- L.DomUtil.enableTextSelection = function () {
- L.DomEvent.off(window, 'selectstart', L.DomEvent.preventDefault);
- };
+ return this._southWest.equals(bounds.getSouthWest(), maxMargin) &&
+ this._northEast.equals(bounds.getNorthEast(), maxMargin);
+ },
- } else {
- var userSelectProperty = L.DomUtil.testProp(
- ['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']);
-
- L.DomUtil.disableTextSelection = function () {
- if (userSelectProperty) {
- var style = document.documentElement.style;
- this._userSelect = style[userSelectProperty];
- style[userSelectProperty] = 'none';
- }
- };
- L.DomUtil.enableTextSelection = function () {
- if (userSelectProperty) {
- document.documentElement.style[userSelectProperty] = this._userSelect;
- delete this._userSelect;
- }
- };
+ // @method isValid(): Boolean
+ // Returns `true` if the bounds are properly initialized.
+ isValid: function () {
+ return !!(this._southWest && this._northEast);
}
+};
- // @function disableImageDrag()
- // As [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection), but
- // for `dragstart` DOM events, usually generated when the user drags an image.
- L.DomUtil.disableImageDrag = function () {
- L.DomEvent.on(window, 'dragstart', L.DomEvent.preventDefault);
- };
-
- // @function enableImageDrag()
- // Cancels the effects of a previous [`L.DomUtil.disableImageDrag`](#domutil-disabletextselection).
- L.DomUtil.enableImageDrag = function () {
- L.DomEvent.off(window, 'dragstart', L.DomEvent.preventDefault);
- };
-
- // @function preventOutline(el: HTMLElement)
- // Makes the [outline](https://developer.mozilla.org/docs/Web/CSS/outline)
- // of the element `el` invisible. Used internally by Leaflet to prevent
- // focusable elements from displaying an outline when the user performs a
- // drag interaction on them.
- L.DomUtil.preventOutline = function (element) {
- while (element.tabIndex === -1) {
- element = element.parentNode;
- }
- if (!element || !element.style) { return; }
- L.DomUtil.restoreOutline();
- this._outlineElement = element;
- this._outlineStyle = element.style.outline;
- element.style.outline = 'none';
- L.DomEvent.on(window, 'keydown', L.DomUtil.restoreOutline, this);
- };
-
- // @function restoreOutline()
- // Cancels the effects of a previous [`L.DomUtil.preventOutline`]().
- L.DomUtil.restoreOutline = function () {
- if (!this._outlineElement) { return; }
- this._outlineElement.style.outline = this._outlineStyle;
- delete this._outlineElement;
- delete this._outlineStyle;
- L.DomEvent.off(window, 'keydown', L.DomUtil.restoreOutline, this);
- };
-})();
+// TODO International date line?
+// @factory L.latLngBounds(corner1: LatLng, corner2: LatLng)
+// Creates a `LatLngBounds` object by defining two diagonally opposite corners of the rectangle.
+// @alternative
+// @factory L.latLngBounds(latlngs: LatLng[])
+// Creates a `LatLngBounds` object defined by the geographical points it contains. Very useful for zooming the map to fit a particular set of locations with [`fitBounds`](#map-fitbounds).
+function toLatLngBounds(a, b) {
+ if (a instanceof LatLngBounds) {
+ return a;
+ }
+ return new LatLngBounds(a, b);
+}
/* @class LatLng
* @aka L.LatLng
* map.panTo({lat: 50, lng: 30});
* map.panTo(L.latLng(50, 30));
* ```
+ *
+ * Note that `LatLng` does not inherit from Leaflet's `Class` object,
+ * which means new classes can't inherit from it, and new methods
+ * can't be added to it with the `include` function.
*/
-L.LatLng = function (lat, lng, alt) {
+function LatLng(lat, lng, alt) {
if (isNaN(lat) || isNaN(lng)) {
throw new Error('Invalid LatLng object: (' + lat + ', ' + lng + ')');
}
if (alt !== undefined) {
this.alt = +alt;
}
-};
+}
-L.LatLng.prototype = {
+LatLng.prototype = {
// @method equals(otherLatLng: LatLng, maxMargin?: Number): Boolean
- // Returns `true` if the given `LatLng` point is at the same position (within a small margin of error). The margin of error can be overriden by setting `maxMargin` to a small number.
+ // Returns `true` if the given `LatLng` point is at the same position (within a small margin of error). The margin of error can be overridden by setting `maxMargin` to a small number.
equals: function (obj, maxMargin) {
if (!obj) { return false; }
- obj = L.latLng(obj);
+ obj = toLatLng(obj);
var margin = Math.max(
Math.abs(this.lat - obj.lat),
// Returns a string representation of the point (for debugging purposes).
toString: function (precision) {
return 'LatLng(' +
- L.Util.formatNum(this.lat, precision) + ', ' +
- L.Util.formatNum(this.lng, precision) + ')';
+ formatNum(this.lat, precision) + ', ' +
+ formatNum(this.lng, precision) + ')';
},
// @method distanceTo(otherLatLng: LatLng): Number
- // Returns the distance (in meters) to the given `LatLng` calculated using the [Haversine formula](http://en.wikipedia.org/wiki/Haversine_formula).
+ // Returns the distance (in meters) to the given `LatLng` calculated using the [Spherical Law of Cosines](https://en.wikipedia.org/wiki/Spherical_law_of_cosines).
distanceTo: function (other) {
- return L.CRS.Earth.distance(this, L.latLng(other));
+ return Earth.distance(this, toLatLng(other));
},
// @method wrap(): LatLng
// Returns a new `LatLng` object with the longitude wrapped so it's always between -180 and +180 degrees.
wrap: function () {
- return L.CRS.Earth.wrapLatLng(this);
+ return Earth.wrapLatLng(this);
},
// @method toBounds(sizeInMeters: Number): LatLngBounds
var latAccuracy = 180 * sizeInMeters / 40075017,
lngAccuracy = latAccuracy / Math.cos((Math.PI / 180) * this.lat);
- return L.latLngBounds(
+ return toLatLngBounds(
[this.lat - latAccuracy, this.lng - lngAccuracy],
[this.lat + latAccuracy, this.lng + lngAccuracy]);
},
clone: function () {
- return new L.LatLng(this.lat, this.lng, this.alt);
+ return new LatLng(this.lat, this.lng, this.alt);
}
};
// @factory L.latLng(coords: Object): LatLng
// Expects an plain object of the form `{lat: Number, lng: Number}` or `{lat: Number, lng: Number, alt: Number}` instead.
-L.latLng = function (a, b, c) {
- if (a instanceof L.LatLng) {
+function toLatLng(a, b, c) {
+ if (a instanceof LatLng) {
return a;
}
- if (L.Util.isArray(a) && typeof a[0] !== 'object') {
+ if (isArray(a) && typeof a[0] !== 'object') {
if (a.length === 3) {
- return new L.LatLng(a[0], a[1], a[2]);
+ return new LatLng(a[0], a[1], a[2]);
}
if (a.length === 2) {
- return new L.LatLng(a[0], a[1]);
+ return new LatLng(a[0], a[1]);
}
return null;
}
return a;
}
if (typeof a === 'object' && 'lat' in a) {
- return new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon, a.alt);
+ return new LatLng(a.lat, 'lng' in a ? a.lng : a.lon, a.alt);
}
if (b === undefined) {
return null;
}
- return new L.LatLng(a, b, c);
-};
-
-
+ return new LatLng(a, b, c);
+}
/*
- * @class LatLngBounds
- * @aka L.LatLngBounds
- *
- * Represents a rectangular geographical area on a map.
- *
- * @example
- *
- * ```js
- * var corner1 = L.latLng(40.712, -74.227),
- * corner2 = L.latLng(40.774, -74.125),
- * bounds = L.latLngBounds(corner1, corner2);
- * ```
- *
- * All Leaflet methods that accept LatLngBounds objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this:
+ * @namespace CRS
+ * @crs L.CRS.Base
+ * Object that defines coordinate reference systems for projecting
+ * geographical points into pixel (screen) coordinates and back (and to
+ * coordinates in other units for [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services). See
+ * [spatial reference system](http://en.wikipedia.org/wiki/Coordinate_reference_system).
*
- * ```js
- * map.fitBounds([
- * [40.712, -74.227],
- * [40.774, -74.125]
- * ]);
- * ```
+ * Leaflet defines the most usual CRSs by default. If you want to use a
+ * CRS not defined by default, take a look at the
+ * [Proj4Leaflet](https://github.com/kartena/Proj4Leaflet) plugin.
*
- * Caution: if the area crosses the antimeridian (often confused with the International Date Line), you must specify corners _outside_ the [-180, 180] degrees longitude range.
+ * Note that the CRS instances do not inherit from Leafet's `Class` object,
+ * and can't be instantiated. Also, new classes can't inherit from them,
+ * and methods can't be added to them with the `include` function.
*/
-L.LatLngBounds = function (corner1, corner2) { // (LatLng, LatLng) or (LatLng[])
- if (!corner1) { return; }
+var CRS = {
+ // @method latLngToPoint(latlng: LatLng, zoom: Number): Point
+ // Projects geographical coordinates into pixel coordinates for a given zoom.
+ latLngToPoint: function (latlng, zoom) {
+ var projectedPoint = this.projection.project(latlng),
+ scale = this.scale(zoom);
- var latlngs = corner2 ? [corner1, corner2] : corner1;
+ return this.transformation._transform(projectedPoint, scale);
+ },
- for (var i = 0, len = latlngs.length; i < len; i++) {
- this.extend(latlngs[i]);
- }
-};
+ // @method pointToLatLng(point: Point, zoom: Number): LatLng
+ // The inverse of `latLngToPoint`. Projects pixel coordinates on a given
+ // zoom into geographical coordinates.
+ pointToLatLng: function (point, zoom) {
+ var scale = this.scale(zoom),
+ untransformedPoint = this.transformation.untransform(point, scale);
-L.LatLngBounds.prototype = {
+ return this.projection.unproject(untransformedPoint);
+ },
- // @method extend(latlng: LatLng): this
- // Extend the bounds to contain the given point
+ // @method project(latlng: LatLng): Point
+ // Projects geographical coordinates into coordinates in units accepted for
+ // this CRS (e.g. meters for EPSG:3857, for passing it to WMS services).
+ project: function (latlng) {
+ return this.projection.project(latlng);
+ },
- // @alternative
- // @method extend(otherBounds: LatLngBounds): this
- // Extend the bounds to contain the given bounds
- extend: function (obj) {
- var sw = this._southWest,
- ne = this._northEast,
- sw2, ne2;
+ // @method unproject(point: Point): LatLng
+ // Given a projected coordinate returns the corresponding LatLng.
+ // The inverse of `project`.
+ unproject: function (point) {
+ return this.projection.unproject(point);
+ },
- if (obj instanceof L.LatLng) {
- sw2 = obj;
- ne2 = obj;
+ // @method scale(zoom: Number): Number
+ // Returns the scale used when transforming projected coordinates into
+ // pixel coordinates for a particular zoom. For example, it returns
+ // `256 * 2^zoom` for Mercator-based CRS.
+ scale: function (zoom) {
+ return 256 * Math.pow(2, zoom);
+ },
- } else if (obj instanceof L.LatLngBounds) {
- sw2 = obj._southWest;
- ne2 = obj._northEast;
-
- if (!sw2 || !ne2) { return this; }
-
- } else {
- return obj ? this.extend(L.latLng(obj) || L.latLngBounds(obj)) : this;
- }
-
- if (!sw && !ne) {
- this._southWest = new L.LatLng(sw2.lat, sw2.lng);
- this._northEast = new L.LatLng(ne2.lat, ne2.lng);
- } else {
- sw.lat = Math.min(sw2.lat, sw.lat);
- sw.lng = Math.min(sw2.lng, sw.lng);
- ne.lat = Math.max(ne2.lat, ne.lat);
- ne.lng = Math.max(ne2.lng, ne.lng);
- }
-
- return this;
- },
-
- // @method pad(bufferRatio: Number): LatLngBounds
- // Returns bigger bounds created by extending the current bounds by a given percentage in each direction.
- pad: function (bufferRatio) {
- 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));
+ // @method zoom(scale: Number): Number
+ // Inverse of `scale()`, returns the zoom level corresponding to a scale
+ // factor of `scale`.
+ zoom: function (scale) {
+ return Math.log(scale / 256) / Math.LN2;
},
- // @method getCenter(): LatLng
- // Returns the center point of the bounds.
- getCenter: function () {
- return new L.LatLng(
- (this._southWest.lat + this._northEast.lat) / 2,
- (this._southWest.lng + this._northEast.lng) / 2);
- },
+ // @method getProjectedBounds(zoom: Number): Bounds
+ // Returns the projection's bounds scaled and transformed for the provided `zoom`.
+ getProjectedBounds: function (zoom) {
+ if (this.infinite) { return null; }
- // @method getSouthWest(): LatLng
- // Returns the south-west point of the bounds.
- getSouthWest: function () {
- return this._southWest;
- },
+ var b = this.projection.bounds,
+ s = this.scale(zoom),
+ min = this.transformation.transform(b.min, s),
+ max = this.transformation.transform(b.max, s);
- // @method getNorthEast(): LatLng
- // Returns the north-east point of the bounds.
- getNorthEast: function () {
- return this._northEast;
+ return new Bounds(min, max);
},
- // @method getNorthWest(): LatLng
- // Returns the north-west point of the bounds.
- getNorthWest: function () {
- return new L.LatLng(this.getNorth(), this.getWest());
- },
+ // @method distance(latlng1: LatLng, latlng2: LatLng): Number
+ // Returns the distance between two geographical coordinates.
- // @method getSouthEast(): LatLng
- // Returns the south-east point of the bounds.
- getSouthEast: function () {
- return new L.LatLng(this.getSouth(), this.getEast());
- },
+ // @property code: String
+ // Standard code name of the CRS passed into WMS services (e.g. `'EPSG:3857'`)
+ //
+ // @property wrapLng: Number[]
+ // An array of two numbers defining whether the longitude (horizontal) coordinate
+ // axis wraps around a given range and how. Defaults to `[-180, 180]` in most
+ // geographical CRSs. If `undefined`, the longitude axis does not wrap around.
+ //
+ // @property wrapLat: Number[]
+ // Like `wrapLng`, but for the latitude (vertical) axis.
- // @method getWest(): Number
- // Returns the west longitude of the bounds
- getWest: function () {
- return this._southWest.lng;
- },
+ // wrapLng: [min, max],
+ // wrapLat: [min, max],
- // @method getSouth(): Number
- // Returns the south latitude of the bounds
- getSouth: function () {
- return this._southWest.lat;
- },
+ // @property infinite: Boolean
+ // If true, the coordinate space will be unbounded (infinite in both axes)
+ infinite: false,
- // @method getEast(): Number
- // Returns the east longitude of the bounds
- getEast: function () {
- return this._northEast.lng;
- },
+ // @method wrapLatLng(latlng: LatLng): LatLng
+ // Returns a `LatLng` where lat and lng has been wrapped according to the
+ // CRS's `wrapLat` and `wrapLng` properties, if they are outside the CRS's bounds.
+ wrapLatLng: function (latlng) {
+ var lng = this.wrapLng ? wrapNum(latlng.lng, this.wrapLng, true) : latlng.lng,
+ lat = this.wrapLat ? wrapNum(latlng.lat, this.wrapLat, true) : latlng.lat,
+ alt = latlng.alt;
- // @method getNorth(): Number
- // Returns the north latitude of the bounds
- getNorth: function () {
- return this._northEast.lat;
+ return new LatLng(lat, lng, alt);
},
- // @method contains(otherBounds: LatLngBounds): Boolean
- // Returns `true` if the rectangle contains the given one.
-
- // @alternative
- // @method contains (latlng: LatLng): Boolean
- // Returns `true` if the rectangle contains the given point.
- contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean
- if (typeof obj[0] === 'number' || obj instanceof L.LatLng || 'lat' in obj) {
- obj = L.latLng(obj);
- } else {
- obj = L.latLngBounds(obj);
- }
-
- var sw = this._southWest,
- ne = this._northEast,
- sw2, ne2;
+ // @method wrapLatLngBounds(bounds: LatLngBounds): LatLngBounds
+ // Returns a `LatLngBounds` with the same size as the given one, ensuring
+ // that its center is within the CRS's bounds.
+ // Only accepts actual `L.LatLngBounds` instances, not arrays.
+ wrapLatLngBounds: function (bounds) {
+ var center = bounds.getCenter(),
+ newCenter = this.wrapLatLng(center),
+ latShift = center.lat - newCenter.lat,
+ lngShift = center.lng - newCenter.lng;
- if (obj instanceof L.LatLngBounds) {
- sw2 = obj.getSouthWest();
- ne2 = obj.getNorthEast();
- } else {
- sw2 = ne2 = obj;
+ if (latShift === 0 && lngShift === 0) {
+ return bounds;
}
- return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) &&
- (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng);
- },
-
- // @method intersects(otherBounds: LatLngBounds): Boolean
- // Returns `true` if the rectangle intersects the given bounds. Two bounds intersect if they have at least one point in common.
- intersects: function (bounds) {
- 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;
- },
-
- // @method overlaps(otherBounds: Bounds): Boolean
- // Returns `true` if the rectangle overlaps the given bounds. Two bounds overlap if their intersection is an area.
- overlaps: function (bounds) {
- bounds = L.latLngBounds(bounds);
-
- var sw = this._southWest,
- ne = this._northEast,
- sw2 = bounds.getSouthWest(),
- ne2 = bounds.getNorthEast(),
-
- latOverlaps = (ne2.lat > sw.lat) && (sw2.lat < ne.lat),
- lngOverlaps = (ne2.lng > sw.lng) && (sw2.lng < ne.lng);
-
- return latOverlaps && lngOverlaps;
- },
-
- // @method toBBoxString(): String
- // Returns a string with bounding box coordinates in a 'southwest_lng,southwest_lat,northeast_lng,northeast_lat' format. Useful for sending requests to web services that return geo data.
- toBBoxString: function () {
- return [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(',');
- },
-
- // @method equals(otherBounds: LatLngBounds): Boolean
- // Returns `true` if the rectangle is equivalent (within a small margin of error) to the given bounds.
- equals: function (bounds) {
- if (!bounds) { return false; }
-
- bounds = L.latLngBounds(bounds);
-
- return this._southWest.equals(bounds.getSouthWest()) &&
- this._northEast.equals(bounds.getNorthEast());
- },
-
- // @method isValid(): Boolean
- // Returns `true` if the bounds are properly initialized.
- isValid: function () {
- return !!(this._southWest && this._northEast);
- }
-};
-
-// TODO International date line?
-
-// @factory L.latLngBounds(corner1: LatLng, corner2: LatLng)
-// Creates a `LatLngBounds` object by defining two diagonally opposite corners of the rectangle.
+ var sw = bounds.getSouthWest(),
+ ne = bounds.getNorthEast(),
+ newSw = new LatLng(sw.lat - latShift, sw.lng - lngShift),
+ newNe = new LatLng(ne.lat - latShift, ne.lng - lngShift);
-// @alternative
-// @factory L.latLngBounds(latlngs: LatLng[])
-// Creates a `LatLngBounds` object defined by the geographical points it contains. Very useful for zooming the map to fit a particular set of locations with [`fitBounds`](#map-fitbounds).
-L.latLngBounds = function (a, b) {
- if (a instanceof L.LatLngBounds) {
- return a;
+ return new LatLngBounds(newSw, newNe);
}
- return new L.LatLngBounds(a, b);
};
-
-
/*
- * @namespace Projection
- * @section
- * Leaflet comes with a set of already defined Projections out of the box:
- *
- * @projection L.Projection.LonLat
+ * @namespace CRS
+ * @crs L.CRS.Earth
*
- * Equirectangular, or Plate Carree projection — the most simple projection,
- * mostly used by GIS enthusiasts. Directly maps `x` as longitude, and `y` as
- * latitude. Also suitable for flat worlds, e.g. game maps. Used by the
- * `EPSG:3395` and `Simple` CRS.
+ * Serves as the base for CRS that are global such that they cover the earth.
+ * Can only be used as the base for other CRS and cannot be used directly,
+ * since it does not have a `code`, `projection` or `transformation`. `distance()` returns
+ * meters.
*/
-L.Projection = {};
-
-L.Projection.LonLat = {
- project: function (latlng) {
- return new L.Point(latlng.lng, latlng.lat);
- },
-
- unproject: function (point) {
- return new L.LatLng(point.y, point.x);
- },
-
- bounds: L.bounds([-180, -90], [180, 90])
-};
+var Earth = extend({}, CRS, {
+ wrapLng: [-180, 180],
+ // Mean Earth Radius, as recommended for use by
+ // the International Union of Geodesy and Geophysics,
+ // see http://rosettacode.org/wiki/Haversine_formula
+ R: 6371000,
+ // distance between two geographical points using spherical law of cosines approximation
+ distance: function (latlng1, latlng2) {
+ var rad = Math.PI / 180,
+ lat1 = latlng1.lat * rad,
+ lat2 = latlng2.lat * rad,
+ sinDLat = Math.sin((latlng2.lat - latlng1.lat) * rad / 2),
+ sinDLon = Math.sin((latlng2.lng - latlng1.lng) * rad / 2),
+ a = sinDLat * sinDLat + Math.cos(lat1) * Math.cos(lat2) * sinDLon * sinDLon,
+ c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
+ return this.R * c;
+ }
+});
/*
* @namespace Projection
* a sphere. Used by the `EPSG:3857` CRS.
*/
-L.Projection.SphericalMercator = {
+var earthRadius = 6378137;
- R: 6378137,
+var SphericalMercator = {
+
+ R: earthRadius,
MAX_LATITUDE: 85.0511287798,
project: function (latlng) {
lat = Math.max(Math.min(max, latlng.lat), -max),
sin = Math.sin(lat * d);
- return new L.Point(
- this.R * latlng.lng * d,
- this.R * Math.log((1 + sin) / (1 - sin)) / 2);
+ return new Point(
+ this.R * latlng.lng * d,
+ this.R * Math.log((1 + sin) / (1 - sin)) / 2);
},
unproject: function (point) {
var d = 180 / Math.PI;
- return new L.LatLng(
+ return new LatLng(
(2 * Math.atan(Math.exp(point.y / this.R)) - (Math.PI / 2)) * d,
point.x * d / this.R);
},
bounds: (function () {
- var d = 6378137 * Math.PI;
- return L.bounds([-d, -d], [d, d]);
+ var d = earthRadius * Math.PI;
+ return new Bounds([-d, -d], [d, d]);
})()
};
-
-
/*
- * @class CRS
- * @aka L.CRS
- * Abstract class that defines coordinate reference systems for projecting
- * geographical points into pixel (screen) coordinates and back (and to
- * coordinates in other units for [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services). See
- * [spatial reference system](http://en.wikipedia.org/wiki/Coordinate_reference_system).
+ * @class Transformation
+ * @aka L.Transformation
*
- * Leaflet defines the most usual CRSs by default. If you want to use a
- * CRS not defined by default, take a look at the
- * [Proj4Leaflet](https://github.com/kartena/Proj4Leaflet) plugin.
+ * Represents an affine transformation: a set of coefficients `a`, `b`, `c`, `d`
+ * for transforming a point of a form `(x, y)` into `(a*x + b, c*y + d)` and doing
+ * the reverse. Used by Leaflet in its projections code.
+ *
+ * @example
+ *
+ * ```js
+ * var transformation = L.transformation(2, 5, -1, 10),
+ * p = L.point(1, 2),
+ * p2 = transformation.transform(p), // L.point(7, 8)
+ * p3 = transformation.untransform(p2); // L.point(1, 2)
+ * ```
*/
-L.CRS = {
- // @method latLngToPoint(latlng: LatLng, zoom: Number): Point
- // Projects geographical coordinates into pixel coordinates for a given zoom.
- latLngToPoint: function (latlng, zoom) {
- var projectedPoint = this.projection.project(latlng),
- scale = this.scale(zoom);
-
- return this.transformation._transform(projectedPoint, scale);
- },
- // @method pointToLatLng(point: Point, zoom: Number): LatLng
- // The inverse of `latLngToPoint`. Projects pixel coordinates on a given
- // zoom into geographical coordinates.
- pointToLatLng: function (point, zoom) {
- var scale = this.scale(zoom),
- untransformedPoint = this.transformation.untransform(point, scale);
+// factory new L.Transformation(a: Number, b: Number, c: Number, d: Number)
+// Creates a `Transformation` object with the given coefficients.
+function Transformation(a, b, c, d) {
+ if (isArray(a)) {
+ // use array properties
+ this._a = a[0];
+ this._b = a[1];
+ this._c = a[2];
+ this._d = a[3];
+ return;
+ }
+ this._a = a;
+ this._b = b;
+ this._c = c;
+ this._d = d;
+}
- return this.projection.unproject(untransformedPoint);
+Transformation.prototype = {
+ // @method transform(point: Point, scale?: Number): Point
+ // Returns a transformed point, optionally multiplied by the given scale.
+ // Only accepts actual `L.Point` instances, not arrays.
+ transform: function (point, scale) { // (Point, Number) -> Point
+ return this._transform(point.clone(), scale);
},
- // @method project(latlng: LatLng): Point
- // Projects geographical coordinates into coordinates in units accepted for
- // this CRS (e.g. meters for EPSG:3857, for passing it to WMS services).
- project: function (latlng) {
- return this.projection.project(latlng);
+ // 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;
},
- // @method unproject(point: Point): LatLng
- // Given a projected coordinate returns the corresponding LatLng.
- // The inverse of `project`.
- unproject: function (point) {
- return this.projection.unproject(point);
- },
+ // @method untransform(point: Point, scale?: Number): Point
+ // Returns the reverse transformation of the given point, optionally divided
+ // by the given scale. Only accepts actual `L.Point` instances, not arrays.
+ untransform: function (point, scale) {
+ scale = scale || 1;
+ return new Point(
+ (point.x / scale - this._b) / this._a,
+ (point.y / scale - this._d) / this._c);
+ }
+};
- // @method scale(zoom: Number): Number
- // Returns the scale used when transforming projected coordinates into
- // pixel coordinates for a particular zoom. For example, it returns
- // `256 * 2^zoom` for Mercator-based CRS.
- scale: function (zoom) {
- return 256 * Math.pow(2, zoom);
- },
+// factory L.transformation(a: Number, b: Number, c: Number, d: Number)
- // @method zoom(scale: Number): Number
- // Inverse of `scale()`, returns the zoom level corresponding to a scale
- // factor of `scale`.
- zoom: function (scale) {
- return Math.log(scale / 256) / Math.LN2;
- },
+// @factory L.transformation(a: Number, b: Number, c: Number, d: Number)
+// Instantiates a Transformation object with the given coefficients.
- // @method getProjectedBounds(zoom: Number): Bounds
- // Returns the projection's bounds scaled and transformed for the provided `zoom`.
- getProjectedBounds: function (zoom) {
- if (this.infinite) { return null; }
+// @alternative
+// @factory L.transformation(coefficients: Array): Transformation
+// Expects an coefficients array of the form
+// `[a: Number, b: Number, c: Number, d: Number]`.
- var b = this.projection.bounds,
- s = this.scale(zoom),
- min = this.transformation.transform(b.min, s),
- max = this.transformation.transform(b.max, s);
+function toTransformation(a, b, c, d) {
+ return new Transformation(a, b, c, d);
+}
- return L.bounds(min, max);
- },
+/*
+ * @namespace CRS
+ * @crs L.CRS.EPSG3857
+ *
+ * The most common CRS for online maps, used by almost all free and commercial
+ * tile providers. Uses Spherical Mercator projection. Set in by default in
+ * Map's `crs` option.
+ */
- // @method distance(latlng1: LatLng, latlng2: LatLng): Number
- // Returns the distance between two geographical coordinates.
+var EPSG3857 = extend({}, Earth, {
+ code: 'EPSG:3857',
+ projection: SphericalMercator,
- // @property code: String
- // Standard code name of the CRS passed into WMS services (e.g. `'EPSG:3857'`)
- //
- // @property wrapLng: Number[]
- // An array of two numbers defining whether the longitude (horizontal) coordinate
- // axis wraps around a given range and how. Defaults to `[-180, 180]` in most
- // geographical CRSs. If `undefined`, the longitude axis does not wrap around.
- //
- // @property wrapLat: Number[]
- // Like `wrapLng`, but for the latitude (vertical) axis.
+ transformation: (function () {
+ var scale = 0.5 / (Math.PI * SphericalMercator.R);
+ return toTransformation(scale, 0.5, -scale, 0.5);
+ }())
+});
- // wrapLng: [min, max],
- // wrapLat: [min, max],
+var EPSG900913 = extend({}, EPSG3857, {
+ code: 'EPSG:900913'
+});
- // @property infinite: Boolean
- // If true, the coordinate space will be unbounded (infinite in both axes)
- infinite: false,
+// @namespace SVG; @section
+// There are several static functions which can be called without instantiating L.SVG:
- // @method wrapLatLng(latlng: LatLng): LatLng
- // Returns a `LatLng` where lat and lng has been wrapped according to the
- // CRS's `wrapLat` and `wrapLng` properties, if they are outside the CRS's bounds.
- // Only accepts actual `L.LatLng` instances, not arrays.
- wrapLatLng: function (latlng) {
- var lng = this.wrapLng ? L.Util.wrapNum(latlng.lng, this.wrapLng, true) : latlng.lng,
- lat = this.wrapLat ? L.Util.wrapNum(latlng.lat, this.wrapLat, true) : latlng.lat,
- alt = latlng.alt;
+// @function create(name: String): SVGElement
+// Returns a instance of [SVGElement](https://developer.mozilla.org/docs/Web/API/SVGElement),
+// corresponding to the class name passed. For example, using 'line' will return
+// an instance of [SVGLineElement](https://developer.mozilla.org/docs/Web/API/SVGLineElement).
+function svgCreate(name) {
+ return document.createElementNS('http://www.w3.org/2000/svg', name);
+}
- return L.latLng(lat, lng, alt);
- },
+// @function pointsToPath(rings: Point[], closed: Boolean): String
+// Generates a SVG path string for multiple rings, with each ring turning
+// into "M..L..L.." instructions
+function pointsToPath(rings, closed) {
+ var str = '',
+ i, j, len, len2, points, p;
- // @method wrapLatLngBounds(bounds: LatLngBounds): LatLngBounds
- // Returns a `LatLngBounds` with the same size as the given one, ensuring
- // that its center is within the CRS's bounds.
- // Only accepts actual `L.LatLngBounds` instances, not arrays.
- wrapLatLngBounds: function (bounds) {
- var center = bounds.getCenter(),
- newCenter = this.wrapLatLng(center),
- latShift = center.lat - newCenter.lat,
- lngShift = center.lng - newCenter.lng;
+ for (i = 0, len = rings.length; i < len; i++) {
+ points = rings[i];
- if (latShift === 0 && lngShift === 0) {
- return bounds;
+ for (j = 0, len2 = points.length; j < len2; j++) {
+ p = points[j];
+ str += (j ? 'L' : 'M') + p.x + ' ' + p.y;
}
- var sw = bounds.getSouthWest(),
- ne = bounds.getNorthEast(),
- newSw = L.latLng({lat: sw.lat - latShift, lng: sw.lng - lngShift}),
- newNe = L.latLng({lat: ne.lat - latShift, lng: ne.lng - lngShift});
-
- return new L.LatLngBounds(newSw, newNe);
+ // closes the ring for polygons; "x" is VML syntax
+ str += closed ? (svg ? 'z' : 'x') : '';
}
-};
-
+ // SVG complains about empty path strings
+ return str || 'M0 0';
+}
/*
- * @namespace CRS
- * @crs L.CRS.Simple
+ * @namespace Browser
+ * @aka L.Browser
*
- * A simple CRS that maps longitude and latitude into `x` and `y` directly.
- * May be used for maps of flat surfaces (e.g. game maps). Note that the `y`
- * axis should still be inverted (going from bottom to top). `distance()` returns
- * simple euclidean distance.
+ * A namespace with static properties for browser/feature detection used by Leaflet internally.
+ *
+ * @example
+ *
+ * ```js
+ * if (L.Browser.ielt9) {
+ * alert('Upgrade your browser, dude!');
+ * }
+ * ```
*/
-L.CRS.Simple = L.extend({}, L.CRS, {
- projection: L.Projection.LonLat,
- transformation: new L.Transformation(1, 0, -1, 0),
+var style$1 = document.documentElement.style;
- scale: function (zoom) {
- return Math.pow(2, zoom);
- },
+// @property ie: Boolean; `true` for all Internet Explorer versions (not Edge).
+var ie = 'ActiveXObject' in window;
- zoom: function (scale) {
- return Math.log(scale) / Math.LN2;
- },
+// @property ielt9: Boolean; `true` for Internet Explorer versions less than 9.
+var ielt9 = ie && !document.addEventListener;
- distance: function (latlng1, latlng2) {
- var dx = latlng2.lng - latlng1.lng,
- dy = latlng2.lat - latlng1.lat;
+// @property edge: Boolean; `true` for the Edge web browser.
+var edge = 'msLaunchUri' in navigator && !('documentMode' in document);
- return Math.sqrt(dx * dx + dy * dy);
- },
+// @property webkit: Boolean;
+// `true` for webkit-based browsers like Chrome and Safari (including mobile versions).
+var webkit = userAgentContains('webkit');
- infinite: true
-});
+// @property android: Boolean
+// `true` for any browser running on an Android platform.
+var android = userAgentContains('android');
+// @property android23: Boolean; `true` for browsers running on Android 2 or Android 3.
+var android23 = userAgentContains('android 2') || userAgentContains('android 3');
+/* See https://stackoverflow.com/a/17961266 for details on detecting stock Android */
+var webkitVer = parseInt(/WebKit\/([0-9]+)|$/.exec(navigator.userAgent)[1], 10); // also matches AppleWebKit
+// @property androidStock: Boolean; `true` for the Android stock browser (i.e. not Chrome)
+var androidStock = android && userAgentContains('Google') && webkitVer < 537 && !('AudioNode' in window);
-/*
- * @namespace CRS
- * @crs L.CRS.Earth
- *
- * Serves as the base for CRS that are global such that they cover the earth.
- * Can only be used as the base for other CRS and cannot be used directly,
- * since it does not have a `code`, `projection` or `transformation`. `distance()` returns
- * meters.
- */
+// @property opera: Boolean; `true` for the Opera browser
+var opera = !!window.opera;
-L.CRS.Earth = L.extend({}, L.CRS, {
- wrapLng: [-180, 180],
+// @property chrome: Boolean; `true` for the Chrome browser.
+var chrome = userAgentContains('chrome');
- // Mean Earth Radius, as recommended for use by
- // the International Union of Geodesy and Geophysics,
- // see http://rosettacode.org/wiki/Haversine_formula
- R: 6371000,
+// @property gecko: Boolean; `true` for gecko-based browsers like Firefox.
+var gecko = userAgentContains('gecko') && !webkit && !opera && !ie;
- // distance between two geographical points using spherical law of cosines approximation
- distance: function (latlng1, latlng2) {
- var rad = Math.PI / 180,
- lat1 = latlng1.lat * rad,
- lat2 = latlng2.lat * rad,
- a = Math.sin(lat1) * Math.sin(lat2) +
- Math.cos(lat1) * Math.cos(lat2) * Math.cos((latlng2.lng - latlng1.lng) * rad);
+// @property safari: Boolean; `true` for the Safari browser.
+var safari = !chrome && userAgentContains('safari');
- return this.R * Math.acos(Math.min(a, 1));
- }
-});
+var phantom = userAgentContains('phantom');
+// @property opera12: Boolean
+// `true` for the Opera browser supporting CSS transforms (version 12 or later).
+var opera12 = 'OTransition' in style$1;
+// @property win: Boolean; `true` when the browser is running in a Windows platform
+var win = navigator.platform.indexOf('Win') === 0;
-/*
- * @namespace CRS
- * @crs L.CRS.EPSG3857
- *
- * The most common CRS for online maps, used by almost all free and commercial
- * tile providers. Uses Spherical Mercator projection. Set in by default in
- * Map's `crs` option.
- */
+// @property ie3d: Boolean; `true` for all Internet Explorer versions supporting CSS transforms.
+var ie3d = ie && ('transition' in style$1);
-L.CRS.EPSG3857 = L.extend({}, L.CRS.Earth, {
- code: 'EPSG:3857',
- projection: L.Projection.SphericalMercator,
+// @property webkit3d: Boolean; `true` for webkit-based browsers supporting CSS transforms.
+var webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23;
- transformation: (function () {
- var scale = 0.5 / (Math.PI * L.Projection.SphericalMercator.R);
- return new L.Transformation(scale, 0.5, -scale, 0.5);
- }())
-});
+// @property gecko3d: Boolean; `true` for gecko-based browsers supporting CSS transforms.
+var gecko3d = 'MozPerspective' in style$1;
-L.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, {
- code: 'EPSG:900913'
-});
+// @property any3d: Boolean
+// `true` for all browsers supporting CSS transforms.
+var any3d = !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d) && !opera12 && !phantom;
+// @property mobile: Boolean; `true` for all browsers running in a mobile device.
+var mobile = typeof orientation !== 'undefined' || userAgentContains('mobile');
+// @property mobileWebkit: Boolean; `true` for all webkit-based browsers in a mobile device.
+var mobileWebkit = mobile && webkit;
-/*
- * @namespace CRS
- * @crs L.CRS.EPSG4326
- *
- * A common CRS among GIS enthusiasts. Uses simple Equirectangular projection.
- *
- * Leaflet 1.0.x complies with the [TMS coordinate scheme for EPSG:4326](https://wiki.osgeo.org/wiki/Tile_Map_Service_Specification#global-geodetic),
- * which is a breaking change from 0.7.x behaviour. If you are using a `TileLayer`
- * with this CRS, ensure that there are two 256x256 pixel tiles covering the
- * whole earth at zoom level zero, and that the tile coordinate origin is (-180,+90),
- * or (-180,-90) for `TileLayer`s with [the `tms` option](#tilelayer-tms) set.
- */
+// @property mobileWebkit3d: Boolean
+// `true` for all webkit-based browsers in a mobile device supporting CSS transforms.
+var mobileWebkit3d = mobile && webkit3d;
-L.CRS.EPSG4326 = L.extend({}, L.CRS.Earth, {
- code: 'EPSG:4326',
- projection: L.Projection.LonLat,
- transformation: new L.Transformation(1 / 180, 1, -1 / 180, 0.5)
-});
+// @property msPointer: Boolean
+// `true` for browsers implementing the Microsoft touch events model (notably IE10).
+var msPointer = !window.PointerEvent && window.MSPointerEvent;
+// @property pointer: Boolean
+// `true` for all browsers supporting [pointer events](https://msdn.microsoft.com/en-us/library/dn433244%28v=vs.85%29.aspx).
+var pointer = !webkit && !!(window.PointerEvent || msPointer);
+// @property touch: Boolean
+// `true` for all browsers supporting [touch events](https://developer.mozilla.org/docs/Web/API/Touch_events).
+// This does not necessarily mean that the browser is running in a computer with
+// a touchscreen, it only means that the browser is capable of understanding
+// touch events.
+var touch = !window.L_NO_TOUCH && (pointer || 'ontouchstart' in window ||
+ (window.DocumentTouch && document instanceof window.DocumentTouch));
-/*
- * @class Map
- * @aka L.Map
- * @inherits Evented
- *
- * The central class of the API — it is used to create a map on a page and manipulate it.
- *
- * @example
- *
- * ```js
- * // initialize the map on the "map" div with a given center and zoom
- * var map = L.map('map', {
- * center: [51.505, -0.09],
- * zoom: 13
- * });
- * ```
- *
- */
+// @property mobileOpera: Boolean; `true` for the Opera browser in a mobile device.
+var mobileOpera = mobile && opera;
-L.Map = L.Evented.extend({
+// @property mobileGecko: Boolean
+// `true` for gecko-based browsers running in a mobile device.
+var mobileGecko = mobile && gecko;
- options: {
- // @section Map State Options
- // @option crs: CRS = L.CRS.EPSG3857
- // The [Coordinate Reference System](#crs) to use. Don't change this if you're not
- // sure what it means.
- crs: L.CRS.EPSG3857,
+// @property retina: Boolean
+// `true` for browsers on a high-resolution "retina" screen or on any screen when browser's display zoom is more than 100%.
+var retina = (window.devicePixelRatio || (window.screen.deviceXDPI / window.screen.logicalXDPI)) > 1;
- // @option center: LatLng = undefined
- // Initial geographic center of the map
- center: undefined,
+// @property passiveEvents: Boolean
+// `true` for browsers that support passive events.
+var passiveEvents = (function () {
+ var supportsPassiveOption = false;
+ try {
+ var opts = Object.defineProperty({}, 'passive', {
+ get: function () {
+ supportsPassiveOption = true;
+ }
+ });
+ window.addEventListener('testPassiveEventSupport', falseFn, opts);
+ window.removeEventListener('testPassiveEventSupport', falseFn, opts);
+ } catch (e) {
+ // Errors can safely be ignored since this is only a browser support test.
+ }
+ return supportsPassiveOption;
+});
- // @option zoom: Number = undefined
- // Initial map zoom level
- zoom: undefined,
+// @property canvas: Boolean
+// `true` when the browser supports [`<canvas>`](https://developer.mozilla.org/docs/Web/API/Canvas_API).
+var canvas = (function () {
+ return !!document.createElement('canvas').getContext;
+}());
- // @option minZoom: Number = undefined
- // Minimum zoom level of the map. Overrides any `minZoom` option set on map layers.
- minZoom: undefined,
+// @property svg: Boolean
+// `true` when the browser supports [SVG](https://developer.mozilla.org/docs/Web/SVG).
+var svg = !!(document.createElementNS && svgCreate('svg').createSVGRect);
- // @option maxZoom: Number = undefined
- // Maximum zoom level of the map. Overrides any `maxZoom` option set on map layers.
- maxZoom: undefined,
+// @property vml: Boolean
+// `true` if the browser supports [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language).
+var vml = !svg && (function () {
+ try {
+ var div = document.createElement('div');
+ div.innerHTML = '<v:shape adj="1"/>';
- // @option layers: Layer[] = []
- // Array of layers that will be added to the map initially
- layers: [],
+ var shape = div.firstChild;
+ shape.style.behavior = 'url(#default#VML)';
- // @option maxBounds: LatLngBounds = null
- // When this option is set, the map restricts the view to the given
- // geographical bounds, bouncing the user back if the user tries to pan
- // outside the view. To set the restriction dynamically, use
- // [`setMaxBounds`](#map-setmaxbounds) method.
- maxBounds: undefined,
+ return shape && (typeof shape.adj === 'object');
- // @option renderer: Renderer = *
- // The default method for drawing vector layers on the map. `L.SVG`
- // or `L.Canvas` by default depending on browser support.
- renderer: undefined,
+ } catch (e) {
+ return false;
+ }
+}());
- // @section Animation Options
- // @option zoomAnimation: Boolean = true
- // Whether the map zoom animation is enabled. By default it's enabled
- // in all browsers that support CSS3 Transitions except Android.
- zoomAnimation: true,
+function userAgentContains(str) {
+ return navigator.userAgent.toLowerCase().indexOf(str) >= 0;
+}
- // @option zoomAnimationThreshold: Number = 4
- // Won't animate zoom if the zoom difference exceeds this value.
- zoomAnimationThreshold: 4,
- // @option fadeAnimation: Boolean = true
- // Whether the tile fade animation is enabled. By default it's enabled
- // in all browsers that support CSS3 Transitions except Android.
- fadeAnimation: true,
+var Browser = (Object.freeze || Object)({
+ ie: ie,
+ ielt9: ielt9,
+ edge: edge,
+ webkit: webkit,
+ android: android,
+ android23: android23,
+ androidStock: androidStock,
+ opera: opera,
+ chrome: chrome,
+ gecko: gecko,
+ safari: safari,
+ phantom: phantom,
+ opera12: opera12,
+ win: win,
+ ie3d: ie3d,
+ webkit3d: webkit3d,
+ gecko3d: gecko3d,
+ any3d: any3d,
+ mobile: mobile,
+ mobileWebkit: mobileWebkit,
+ mobileWebkit3d: mobileWebkit3d,
+ msPointer: msPointer,
+ pointer: pointer,
+ touch: touch,
+ mobileOpera: mobileOpera,
+ mobileGecko: mobileGecko,
+ retina: retina,
+ passiveEvents: passiveEvents,
+ canvas: canvas,
+ svg: svg,
+ vml: vml
+});
- // @option markerZoomAnimation: Boolean = true
- // Whether markers animate their zoom with the zoom animation, if disabled
- // they will disappear for the length of the animation. By default it's
- // enabled in all browsers that support CSS3 Transitions except Android.
- markerZoomAnimation: true,
+/*
+ * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices.
+ */
- // @option transform3DLimit: Number = 2^23
- // Defines the maximum size of a CSS translation transform. The default
- // value should not be changed unless a web browser positions layers in
- // the wrong place after doing a large `panBy`.
- transform3DLimit: 8388608, // Precision limit of a 32-bit float
- // @section Interaction Options
- // @option zoomSnap: Number = 1
- // Forces the map's zoom level to always be a multiple of this, particularly
- // right after a [`fitBounds()`](#map-fitbounds) or a pinch-zoom.
- // By default, the zoom level snaps to the nearest integer; lower values
- // (e.g. `0.5` or `0.1`) allow for greater granularity. A value of `0`
- // means the zoom level will not be snapped after `fitBounds` or a pinch-zoom.
- zoomSnap: 1,
+var POINTER_DOWN = msPointer ? 'MSPointerDown' : 'pointerdown';
+var POINTER_MOVE = msPointer ? 'MSPointerMove' : 'pointermove';
+var POINTER_UP = msPointer ? 'MSPointerUp' : 'pointerup';
+var POINTER_CANCEL = msPointer ? 'MSPointerCancel' : 'pointercancel';
+var TAG_WHITE_LIST = ['INPUT', 'SELECT', 'OPTION'];
- // @option zoomDelta: Number = 1
- // Controls how much the map's zoom level will change after a
- // [`zoomIn()`](#map-zoomin), [`zoomOut()`](#map-zoomout), pressing `+`
- // or `-` on the keyboard, or using the [zoom controls](#control-zoom).
- // Values smaller than `1` (e.g. `0.5`) allow for greater granularity.
- zoomDelta: 1,
+var _pointers = {};
+var _pointerDocListener = false;
- // @option trackResize: Boolean = true
- // Whether the map automatically handles browser window resize to update itself.
- trackResize: true
- },
+// DomEvent.DoubleTap needs to know about this
+var _pointersCount = 0;
- initialize: function (id, options) { // (HTMLElement or String, Object)
- options = L.setOptions(this, options);
+// Provides a touch events wrapper for (ms)pointer events.
+// ref http://www.w3.org/TR/pointerevents/ https://www.w3.org/Bugs/Public/show_bug.cgi?id=22890
- this._initContainer(id);
- this._initLayout();
+function addPointerListener(obj, type, handler, id) {
+ if (type === 'touchstart') {
+ _addPointerStart(obj, handler, id);
- // hack for https://github.com/Leaflet/Leaflet/issues/1980
- this._onResize = L.bind(this._onResize, this);
+ } else if (type === 'touchmove') {
+ _addPointerMove(obj, handler, id);
- this._initEvents();
+ } else if (type === 'touchend') {
+ _addPointerEnd(obj, handler, id);
+ }
- if (options.maxBounds) {
- this.setMaxBounds(options.maxBounds);
- }
+ return this;
+}
- if (options.zoom !== undefined) {
- this._zoom = this._limitZoom(options.zoom);
- }
+function removePointerListener(obj, type, id) {
+ var handler = obj['_leaflet_' + type + id];
- if (options.center && options.zoom !== undefined) {
- this.setView(L.latLng(options.center), options.zoom, {reset: true});
- }
+ if (type === 'touchstart') {
+ obj.removeEventListener(POINTER_DOWN, handler, false);
- this._handlers = [];
- this._layers = {};
- this._zoomBoundLayers = {};
- this._sizeChanged = true;
+ } else if (type === 'touchmove') {
+ obj.removeEventListener(POINTER_MOVE, handler, false);
- this.callInitHooks();
+ } else if (type === 'touchend') {
+ obj.removeEventListener(POINTER_UP, handler, false);
+ obj.removeEventListener(POINTER_CANCEL, handler, false);
+ }
- // don't animate on browsers without hardware-accelerated transitions or old Android/Opera
- this._zoomAnimated = L.DomUtil.TRANSITION && L.Browser.any3d && !L.Browser.mobileOpera &&
- this.options.zoomAnimation;
+ return this;
+}
- // zoom transitions run with the same duration for all layers, so if one of transitionend events
- // happens after starting zoom animation (propagating to the map pane), we know that it ended globally
- if (this._zoomAnimated) {
- this._createAnimProxy();
- L.DomEvent.on(this._proxy, L.DomUtil.TRANSITION_END, this._catchTransitionEnd, this);
+function _addPointerStart(obj, handler, id) {
+ var onDown = bind(function (e) {
+ if (e.pointerType !== 'mouse' && e.MSPOINTER_TYPE_MOUSE && e.pointerType !== e.MSPOINTER_TYPE_MOUSE) {
+ // In IE11, some touch events needs to fire for form controls, or
+ // the controls will stop working. We keep a whitelist of tag names that
+ // need these events. For other target tags, we prevent default on the event.
+ if (TAG_WHITE_LIST.indexOf(e.target.tagName) < 0) {
+ preventDefault(e);
+ } else {
+ return;
+ }
}
- this._addLayers(this.options.layers);
- },
+ _handlePointer(e, handler);
+ });
+ obj['_leaflet_touchstart' + id] = onDown;
+ obj.addEventListener(POINTER_DOWN, onDown, false);
- // @section Methods for modifying map state
+ // need to keep track of what pointers and how many are active to provide e.touches emulation
+ if (!_pointerDocListener) {
+ // we listen documentElement as any drags that end by moving the touch off the screen get fired there
+ document.documentElement.addEventListener(POINTER_DOWN, _globalPointerDown, true);
+ document.documentElement.addEventListener(POINTER_MOVE, _globalPointerMove, true);
+ document.documentElement.addEventListener(POINTER_UP, _globalPointerUp, true);
+ document.documentElement.addEventListener(POINTER_CANCEL, _globalPointerUp, true);
- // @method setView(center: LatLng, zoom: Number, options?: Zoom/pan options): this
- // Sets the view of the map (geographical center and zoom) with the given
- // animation options.
- setView: function (center, zoom, options) {
+ _pointerDocListener = true;
+ }
+}
- zoom = zoom === undefined ? this._zoom : this._limitZoom(zoom);
- center = this._limitCenter(L.latLng(center), zoom, this.options.maxBounds);
- options = options || {};
+function _globalPointerDown(e) {
+ _pointers[e.pointerId] = e;
+ _pointersCount++;
+}
- this._stop();
+function _globalPointerMove(e) {
+ if (_pointers[e.pointerId]) {
+ _pointers[e.pointerId] = e;
+ }
+}
- if (this._loaded && !options.reset && options !== true) {
+function _globalPointerUp(e) {
+ delete _pointers[e.pointerId];
+ _pointersCount--;
+}
- if (options.animate !== undefined) {
- options.zoom = L.extend({animate: options.animate}, options.zoom);
- options.pan = L.extend({animate: options.animate, duration: options.duration}, options.pan);
- }
+function _handlePointer(e, handler) {
+ e.touches = [];
+ for (var i in _pointers) {
+ e.touches.push(_pointers[i]);
+ }
+ e.changedTouches = [e];
- // try animating pan or zoom
- var moved = (this._zoom !== zoom) ?
- this._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) :
- this._tryAnimatedPan(center, options.pan);
+ handler(e);
+}
- if (moved) {
- // prevent resize handler call, the view will refresh after animation anyway
- clearTimeout(this._sizeTimer);
- return this;
- }
- }
+function _addPointerMove(obj, handler, id) {
+ var onMove = function (e) {
+ // don't fire touch moves when mouse isn't down
+ if ((e.pointerType === e.MSPOINTER_TYPE_MOUSE || e.pointerType === 'mouse') && e.buttons === 0) { return; }
- // animation didn't start, just reset the map view
- this._resetView(center, zoom);
+ _handlePointer(e, handler);
+ };
- return this;
- },
+ obj['_leaflet_touchmove' + id] = onMove;
+ obj.addEventListener(POINTER_MOVE, onMove, false);
+}
- // @method setZoom(zoom: Number, options: Zoom/pan options): this
- // Sets the zoom of the map.
- setZoom: function (zoom, options) {
- if (!this._loaded) {
- this._zoom = zoom;
- return this;
- }
- return this.setView(this.getCenter(), zoom, {zoom: options});
- },
+function _addPointerEnd(obj, handler, id) {
+ var onUp = function (e) {
+ _handlePointer(e, handler);
+ };
- // @method zoomIn(delta?: Number, options?: Zoom options): this
- // Increases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default).
- zoomIn: function (delta, options) {
- delta = delta || (L.Browser.any3d ? this.options.zoomDelta : 1);
- return this.setZoom(this._zoom + delta, options);
- },
+ obj['_leaflet_touchend' + id] = onUp;
+ obj.addEventListener(POINTER_UP, onUp, false);
+ obj.addEventListener(POINTER_CANCEL, onUp, false);
+}
- // @method zoomOut(delta?: Number, options?: Zoom options): this
- // Decreases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default).
- zoomOut: function (delta, options) {
- delta = delta || (L.Browser.any3d ? this.options.zoomDelta : 1);
- return this.setZoom(this._zoom - delta, options);
- },
+/*
+ * Extends the event handling code with double tap support for mobile browsers.
+ */
- // @method setZoomAround(latlng: LatLng, zoom: Number, options: Zoom options): this
- // Zooms the map while keeping a specified geographical point on the map
- // stationary (e.g. used internally for scroll zoom and double-click zoom).
- // @alternative
- // @method setZoomAround(offset: Point, zoom: Number, options: Zoom options): this
- // Zooms the map while keeping a specified pixel on the map (relative to the top-left corner) stationary.
- setZoomAround: function (latlng, zoom, options) {
- var scale = this.getZoomScale(zoom),
- viewHalf = this.getSize().divideBy(2),
- containerPoint = latlng instanceof L.Point ? latlng : this.latLngToContainerPoint(latlng),
+var _touchstart = msPointer ? 'MSPointerDown' : pointer ? 'pointerdown' : 'touchstart';
+var _touchend = msPointer ? 'MSPointerUp' : pointer ? 'pointerup' : 'touchend';
+var _pre = '_leaflet_';
- centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale),
- newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset));
+// inspired by Zepto touch code by Thomas Fuchs
+function addDoubleTapListener(obj, handler, id) {
+ var last, touch$$1,
+ doubleTap = false,
+ delay = 250;
- return this.setView(newCenter, zoom, {zoom: options});
- },
+ function onTouchStart(e) {
+ var count;
- _getBoundsCenterZoom: function (bounds, options) {
+ if (pointer) {
+ if ((!edge) || e.pointerType === 'mouse') { return; }
+ count = _pointersCount;
+ } else {
+ count = e.touches.length;
+ }
- options = options || {};
- bounds = bounds.getBounds ? bounds.getBounds() : L.latLngBounds(bounds);
+ if (count > 1) { return; }
- var paddingTL = L.point(options.paddingTopLeft || options.padding || [0, 0]),
- paddingBR = L.point(options.paddingBottomRight || options.padding || [0, 0]),
+ var now = Date.now(),
+ delta = now - (last || now);
- zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR));
+ touch$$1 = e.touches ? e.touches[0] : e;
+ doubleTap = (delta > 0 && delta <= delay);
+ last = now;
+ }
- zoom = (typeof options.maxZoom === 'number') ? Math.min(options.maxZoom, zoom) : zoom;
+ function onTouchEnd(e) {
+ if (doubleTap && !touch$$1.cancelBubble) {
+ if (pointer) {
+ if ((!edge) || e.pointerType === 'mouse') { return; }
+ // work around .type being readonly with MSPointer* events
+ var newTouch = {},
+ prop, i;
+
+ for (i in touch$$1) {
+ prop = touch$$1[i];
+ newTouch[i] = prop && prop.bind ? prop.bind(touch$$1) : prop;
+ }
+ touch$$1 = newTouch;
+ }
+ touch$$1.type = 'dblclick';
+ touch$$1.button = 0;
+ handler(touch$$1);
+ last = null;
+ }
+ }
- var paddingOffset = paddingBR.subtract(paddingTL).divideBy(2),
+ obj[_pre + _touchstart + id] = onTouchStart;
+ obj[_pre + _touchend + id] = onTouchEnd;
+ obj[_pre + 'dblclick' + id] = handler;
- swPoint = this.project(bounds.getSouthWest(), zoom),
- nePoint = this.project(bounds.getNorthEast(), zoom),
- center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom);
+ obj.addEventListener(_touchstart, onTouchStart, passiveEvents ? {passive: false} : false);
+ obj.addEventListener(_touchend, onTouchEnd, passiveEvents ? {passive: false} : false);
- return {
- center: center,
- zoom: zoom
- };
- },
+ // On some platforms (notably, chrome<55 on win10 + touchscreen + mouse),
+ // the browser doesn't fire touchend/pointerup events but does fire
+ // native dblclicks. See #4127.
+ // Edge 14 also fires native dblclicks, but only for pointerType mouse, see #5180.
+ obj.addEventListener('dblclick', handler, false);
- // @method fitBounds(bounds: LatLngBounds, options?: fitBounds options): this
- // Sets a map view that contains the given geographical bounds with the
- // maximum zoom level possible.
- fitBounds: function (bounds, options) {
+ return this;
+}
- bounds = L.latLngBounds(bounds);
+function removeDoubleTapListener(obj, id) {
+ var touchstart = obj[_pre + _touchstart + id],
+ touchend = obj[_pre + _touchend + id],
+ dblclick = obj[_pre + 'dblclick' + id];
- if (!bounds.isValid()) {
- throw new Error('Bounds are not valid.');
- }
+ obj.removeEventListener(_touchstart, touchstart, passiveEvents ? {passive: false} : false);
+ obj.removeEventListener(_touchend, touchend, passiveEvents ? {passive: false} : false);
+ if (!edge) {
+ obj.removeEventListener('dblclick', dblclick, false);
+ }
- var target = this._getBoundsCenterZoom(bounds, options);
- return this.setView(target.center, target.zoom, options);
- },
+ return this;
+}
- // @method fitWorld(options?: fitBounds options): this
- // Sets a map view that mostly contains the whole world with the maximum
- // zoom level possible.
- fitWorld: function (options) {
- return this.fitBounds([[-90, -180], [90, 180]], options);
- },
+/*
+ * @namespace DomUtil
+ *
+ * Utility functions to work with the [DOM](https://developer.mozilla.org/docs/Web/API/Document_Object_Model)
+ * tree, used by Leaflet internally.
+ *
+ * Most functions expecting or returning a `HTMLElement` also work for
+ * SVG elements. The only difference is that classes refer to CSS classes
+ * in HTML and SVG classes in SVG.
+ */
- // @method panTo(latlng: LatLng, options?: Pan options): this
- // Pans the map to a given center.
- panTo: function (center, options) { // (LatLng)
- return this.setView(center, this._zoom, {pan: options});
- },
- // @method panBy(offset: Point): this
- // Pans the map by a given number of pixels (animated).
- panBy: function (offset, options) {
- offset = L.point(offset).round();
- options = options || {};
+// @property TRANSFORM: String
+// Vendor-prefixed transform style name (e.g. `'webkitTransform'` for WebKit).
+var TRANSFORM = testProp(
+ ['transform', 'webkitTransform', 'OTransform', 'MozTransform', 'msTransform']);
- if (!offset.x && !offset.y) {
- return this.fire('moveend');
- }
- // If we pan too far, Chrome gets issues with tiles
- // and makes them disappear or appear in the wrong place (slightly offset) #2602
- if (options.animate !== true && !this.getSize().contains(offset)) {
- this._resetView(this.unproject(this.project(this.getCenter()).add(offset)), this.getZoom());
- return this;
- }
+// 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
- if (!this._panAnim) {
- this._panAnim = new L.PosAnimation();
+// @property TRANSITION: String
+// Vendor-prefixed transition style name.
+var TRANSITION = testProp(
+ ['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']);
- this._panAnim.on({
- 'step': this._onPanTransitionStep,
- 'end': this._onPanTransitionEnd
- }, this);
- }
+// @property TRANSITION_END: String
+// Vendor-prefixed transitionend event name.
+var TRANSITION_END =
+ TRANSITION === 'webkitTransition' || TRANSITION === 'OTransition' ? TRANSITION + 'End' : 'transitionend';
- // don't fire movestart if animating inertia
- if (!options.noMoveStart) {
- this.fire('movestart');
- }
- // animate pan unless animate: false specified
- if (options.animate !== false) {
- L.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim');
+// @function get(id: String|HTMLElement): HTMLElement
+// Returns an element given its DOM id, or returns the element itself
+// if it was passed directly.
+function get(id) {
+ return typeof id === 'string' ? document.getElementById(id) : id;
+}
- var newPos = this._getMapPanePos().subtract(offset).round();
- this._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity);
- } else {
- this._rawPanBy(offset);
- this.fire('move').fire('moveend');
- }
+// @function getStyle(el: HTMLElement, styleAttrib: String): String
+// Returns the value for a certain style attribute on an element,
+// including computed values or values set through CSS.
+function getStyle(el, style) {
+ var value = el.style[style] || (el.currentStyle && el.currentStyle[style]);
- return this;
- },
+ if ((!value || value === 'auto') && document.defaultView) {
+ var css = document.defaultView.getComputedStyle(el, null);
+ value = css ? css[style] : null;
+ }
+ return value === 'auto' ? null : value;
+}
- // @method flyTo(latlng: LatLng, zoom?: Number, options?: Zoom/pan options): this
- // Sets the view of the map (geographical center and zoom) performing a smooth
- // pan-zoom animation.
- flyTo: function (targetCenter, targetZoom, options) {
+// @function create(tagName: String, className?: String, container?: HTMLElement): HTMLElement
+// Creates an HTML element with `tagName`, sets its class to `className`, and optionally appends it to `container` element.
+function create$1(tagName, className, container) {
+ var el = document.createElement(tagName);
+ el.className = className || '';
- options = options || {};
- if (options.animate === false || !L.Browser.any3d) {
- return this.setView(targetCenter, targetZoom, options);
- }
+ if (container) {
+ container.appendChild(el);
+ }
+ return el;
+}
- this._stop();
+// @function remove(el: HTMLElement)
+// Removes `el` from its parent element
+function remove(el) {
+ var parent = el.parentNode;
+ if (parent) {
+ parent.removeChild(el);
+ }
+}
- var from = this.project(this.getCenter()),
- to = this.project(targetCenter),
- size = this.getSize(),
- startZoom = this._zoom;
+// @function empty(el: HTMLElement)
+// Removes all of `el`'s children elements from `el`
+function empty(el) {
+ while (el.firstChild) {
+ el.removeChild(el.firstChild);
+ }
+}
- targetCenter = L.latLng(targetCenter);
- targetZoom = targetZoom === undefined ? startZoom : targetZoom;
+// @function toFront(el: HTMLElement)
+// Makes `el` the last child of its parent, so it renders in front of the other children.
+function toFront(el) {
+ var parent = el.parentNode;
+ if (parent && parent.lastChild !== el) {
+ parent.appendChild(el);
+ }
+}
- var w0 = Math.max(size.x, size.y),
- w1 = w0 * this.getZoomScale(startZoom, targetZoom),
- u1 = (to.distanceTo(from)) || 1,
- rho = 1.42,
- rho2 = rho * rho;
+// @function toBack(el: HTMLElement)
+// Makes `el` the first child of its parent, so it renders behind the other children.
+function toBack(el) {
+ var parent = el.parentNode;
+ if (parent && parent.firstChild !== el) {
+ parent.insertBefore(el, parent.firstChild);
+ }
+}
- function r(i) {
- var s1 = i ? -1 : 1,
- s2 = i ? w1 : w0,
- t1 = w1 * w1 - w0 * w0 + s1 * rho2 * rho2 * u1 * u1,
- b1 = 2 * s2 * rho2 * u1,
- b = t1 / b1,
- sq = Math.sqrt(b * b + 1) - b;
+// @function hasClass(el: HTMLElement, name: String): Boolean
+// Returns `true` if the element's class attribute contains `name`.
+function hasClass(el, name) {
+ if (el.classList !== undefined) {
+ return el.classList.contains(name);
+ }
+ var className = getClass(el);
+ return className.length > 0 && new RegExp('(^|\\s)' + name + '(\\s|$)').test(className);
+}
- // workaround for floating point precision bug when sq = 0, log = -Infinite,
- // thus triggering an infinite loop in flyTo
- var log = sq < 0.000000001 ? -18 : Math.log(sq);
+// @function addClass(el: HTMLElement, name: String)
+// Adds `name` to the element's class attribute.
+function addClass(el, name) {
+ if (el.classList !== undefined) {
+ var classes = splitWords(name);
+ for (var i = 0, len = classes.length; i < len; i++) {
+ el.classList.add(classes[i]);
+ }
+ } else if (!hasClass(el, name)) {
+ var className = getClass(el);
+ setClass(el, (className ? className + ' ' : '') + name);
+ }
+}
- return log;
- }
+// @function removeClass(el: HTMLElement, name: String)
+// Removes `name` from the element's class attribute.
+function removeClass(el, name) {
+ if (el.classList !== undefined) {
+ el.classList.remove(name);
+ } else {
+ setClass(el, trim((' ' + getClass(el) + ' ').replace(' ' + name + ' ', ' ')));
+ }
+}
- function sinh(n) { return (Math.exp(n) - Math.exp(-n)) / 2; }
- function cosh(n) { return (Math.exp(n) + Math.exp(-n)) / 2; }
- function tanh(n) { return sinh(n) / cosh(n); }
+// @function setClass(el: HTMLElement, name: String)
+// Sets the element's class.
+function setClass(el, name) {
+ if (el.className.baseVal === undefined) {
+ el.className = name;
+ } else {
+ // in case of SVG element
+ el.className.baseVal = name;
+ }
+}
- var r0 = r(0);
+// @function getClass(el: HTMLElement): String
+// Returns the element's class.
+function getClass(el) {
+ // Check if the element is an SVGElementInstance and use the correspondingElement instead
+ // (Required for linked SVG elements in IE11.)
+ if (el.correspondingElement) {
+ el = el.correspondingElement;
+ }
+ return el.className.baseVal === undefined ? el.className : el.className.baseVal;
+}
- function w(s) { return w0 * (cosh(r0) / cosh(r0 + rho * s)); }
- function u(s) { return w0 * (cosh(r0) * tanh(r0 + rho * s) - sinh(r0)) / rho2; }
+// @function setOpacity(el: HTMLElement, opacity: Number)
+// Set the opacity of an element (including old IE support).
+// `opacity` must be a number from `0` to `1`.
+function setOpacity(el, value) {
+ if ('opacity' in el.style) {
+ el.style.opacity = value;
+ } else if ('filter' in el.style) {
+ _setOpacityIE(el, value);
+ }
+}
- function easeOut(t) { return 1 - Math.pow(1 - t, 1.5); }
+function _setOpacityIE(el, value) {
+ var filter = false,
+ filterName = 'DXImageTransform.Microsoft.Alpha';
- var start = Date.now(),
- S = (r(1) - r0) / rho,
- duration = options.duration ? 1000 * options.duration : 1000 * S * 0.8;
+ // filters collection throws an error if we try to retrieve a filter that doesn't exist
+ try {
+ filter = el.filters.item(filterName);
+ } catch (e) {
+ // don't set opacity to 1 if we haven't already set an opacity,
+ // it isn't needed and breaks transparent pngs.
+ if (value === 1) { return; }
+ }
- function frame() {
- var t = (Date.now() - start) / duration,
- s = easeOut(t) * S;
+ value = Math.round(value * 100);
- if (t <= 1) {
- this._flyToFrame = L.Util.requestAnimFrame(frame, this);
+ if (filter) {
+ filter.Enabled = (value !== 100);
+ filter.Opacity = value;
+ } else {
+ el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')';
+ }
+}
- this._move(
- this.unproject(from.add(to.subtract(from).multiplyBy(u(s) / u1)), startZoom),
- this.getScaleZoom(w0 / w(s), startZoom),
- {flyTo: true});
+// @function testProp(props: String[]): String|false
+// Goes through the array of style names and returns the first name
+// that is a valid style name for an element. If no such name is found,
+// it returns false. Useful for vendor-prefixed styles like `transform`.
+function testProp(props) {
+ var style = document.documentElement.style;
- } else {
- this
- ._move(targetCenter, targetZoom)
- ._moveEnd(true);
- }
+ for (var i = 0; i < props.length; i++) {
+ if (props[i] in style) {
+ return props[i];
}
+ }
+ return false;
+}
- this._moveStart(true);
+// @function setTransform(el: HTMLElement, offset: Point, scale?: Number)
+// Resets the 3D CSS transform of `el` so it is translated by `offset` pixels
+// and optionally scaled by `scale`. Does not have an effect if the
+// browser doesn't support 3D CSS transforms.
+function setTransform(el, offset, scale) {
+ var pos = offset || new Point(0, 0);
+
+ el.style[TRANSFORM] =
+ (ie3d ?
+ 'translate(' + pos.x + 'px,' + pos.y + 'px)' :
+ 'translate3d(' + pos.x + 'px,' + pos.y + 'px,0)') +
+ (scale ? ' scale(' + scale + ')' : '');
+}
- frame.call(this);
- return this;
- },
+// @function setPosition(el: HTMLElement, position: Point)
+// Sets the position of `el` to coordinates specified by `position`,
+// using CSS translate or top/left positioning depending on the browser
+// (used by Leaflet internally to position its layers).
+function setPosition(el, point) {
- // @method flyToBounds(bounds: LatLngBounds, options?: fitBounds options): this
- // Sets the view of the map with a smooth animation like [`flyTo`](#map-flyto),
- // but takes a bounds parameter like [`fitBounds`](#map-fitbounds).
- flyToBounds: function (bounds, options) {
- var target = this._getBoundsCenterZoom(bounds, options);
- return this.flyTo(target.center, target.zoom, options);
- },
+ /*eslint-disable */
+ el._leaflet_pos = point;
+ /* eslint-enable */
- // @method setMaxBounds(bounds: Bounds): this
- // Restricts the map view to the given bounds (see the [maxBounds](#map-maxbounds) option).
- setMaxBounds: function (bounds) {
- bounds = L.latLngBounds(bounds);
+ if (any3d) {
+ setTransform(el, point);
+ } else {
+ el.style.left = point.x + 'px';
+ el.style.top = point.y + 'px';
+ }
+}
- if (!bounds.isValid()) {
- this.options.maxBounds = null;
- return this.off('moveend', this._panInsideMaxBounds);
- } else if (this.options.maxBounds) {
- this.off('moveend', this._panInsideMaxBounds);
- }
+// @function getPosition(el: HTMLElement): Point
+// Returns the coordinates of an element previously positioned with setPosition.
+function getPosition(el) {
+ // this method is only used for elements previously positioned using setPosition,
+ // so it's safe to cache the position for performance
- this.options.maxBounds = bounds;
+ return el._leaflet_pos || new Point(0, 0);
+}
- if (this._loaded) {
- this._panInsideMaxBounds();
+// @function disableTextSelection()
+// Prevents the user from generating `selectstart` DOM events, usually generated
+// when the user drags the mouse through a page with text. Used internally
+// by Leaflet to override the behaviour of any click-and-drag interaction on
+// the map. Affects drag interactions on the whole document.
+
+// @function enableTextSelection()
+// Cancels the effects of a previous [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection).
+var disableTextSelection;
+var enableTextSelection;
+var _userSelect;
+if ('onselectstart' in document) {
+ disableTextSelection = function () {
+ on(window, 'selectstart', preventDefault);
+ };
+ enableTextSelection = function () {
+ off(window, 'selectstart', preventDefault);
+ };
+} else {
+ var userSelectProperty = testProp(
+ ['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']);
+
+ disableTextSelection = function () {
+ if (userSelectProperty) {
+ var style = document.documentElement.style;
+ _userSelect = style[userSelectProperty];
+ style[userSelectProperty] = 'none';
}
+ };
+ enableTextSelection = function () {
+ if (userSelectProperty) {
+ document.documentElement.style[userSelectProperty] = _userSelect;
+ _userSelect = undefined;
+ }
+ };
+}
- return this.on('moveend', this._panInsideMaxBounds);
- },
+// @function disableImageDrag()
+// As [`L.DomUtil.disableTextSelection`](#domutil-disabletextselection), but
+// for `dragstart` DOM events, usually generated when the user drags an image.
+function disableImageDrag() {
+ on(window, 'dragstart', preventDefault);
+}
- // @method setMinZoom(zoom: Number): this
- // Sets the lower limit for the available zoom levels (see the [minZoom](#map-minzoom) option).
- setMinZoom: function (zoom) {
- this.options.minZoom = zoom;
+// @function enableImageDrag()
+// Cancels the effects of a previous [`L.DomUtil.disableImageDrag`](#domutil-disabletextselection).
+function enableImageDrag() {
+ off(window, 'dragstart', preventDefault);
+}
- if (this._loaded && this.getZoom() < this.options.minZoom) {
- return this.setZoom(zoom);
- }
+var _outlineElement;
+var _outlineStyle;
+// @function preventOutline(el: HTMLElement)
+// Makes the [outline](https://developer.mozilla.org/docs/Web/CSS/outline)
+// of the element `el` invisible. Used internally by Leaflet to prevent
+// focusable elements from displaying an outline when the user performs a
+// drag interaction on them.
+function preventOutline(element) {
+ while (element.tabIndex === -1) {
+ element = element.parentNode;
+ }
+ if (!element.style) { return; }
+ restoreOutline();
+ _outlineElement = element;
+ _outlineStyle = element.style.outline;
+ element.style.outline = 'none';
+ on(window, 'keydown', restoreOutline);
+}
- return this;
- },
+// @function restoreOutline()
+// Cancels the effects of a previous [`L.DomUtil.preventOutline`]().
+function restoreOutline() {
+ if (!_outlineElement) { return; }
+ _outlineElement.style.outline = _outlineStyle;
+ _outlineElement = undefined;
+ _outlineStyle = undefined;
+ off(window, 'keydown', restoreOutline);
+}
- // @method setMaxZoom(zoom: Number): this
- // Sets the upper limit for the available zoom levels (see the [maxZoom](#map-maxzoom) option).
- setMaxZoom: function (zoom) {
- this.options.maxZoom = zoom;
+// @function getSizedParentNode(el: HTMLElement): HTMLElement
+// Finds the closest parent node which size (width and height) is not null.
+function getSizedParentNode(element) {
+ do {
+ element = element.parentNode;
+ } while ((!element.offsetWidth || !element.offsetHeight) && element !== document.body);
+ return element;
+}
+
+// @function getScale(el: HTMLElement): Object
+// Computes the CSS scale currently applied on the element.
+// Returns an object with `x` and `y` members as horizontal and vertical scales respectively,
+// and `boundingClientRect` as the result of [`getBoundingClientRect()`](https://developer.mozilla.org/en-US/docs/Web/API/Element/getBoundingClientRect).
+function getScale(element) {
+ var rect = element.getBoundingClientRect(); // Read-only in old browsers.
+
+ return {
+ x: rect.width / element.offsetWidth || 1,
+ y: rect.height / element.offsetHeight || 1,
+ boundingClientRect: rect
+ };
+}
+
+
+var DomUtil = (Object.freeze || Object)({
+ TRANSFORM: TRANSFORM,
+ TRANSITION: TRANSITION,
+ TRANSITION_END: TRANSITION_END,
+ get: get,
+ getStyle: getStyle,
+ create: create$1,
+ remove: remove,
+ empty: empty,
+ toFront: toFront,
+ toBack: toBack,
+ hasClass: hasClass,
+ addClass: addClass,
+ removeClass: removeClass,
+ setClass: setClass,
+ getClass: getClass,
+ setOpacity: setOpacity,
+ testProp: testProp,
+ setTransform: setTransform,
+ setPosition: setPosition,
+ getPosition: getPosition,
+ disableTextSelection: disableTextSelection,
+ enableTextSelection: enableTextSelection,
+ disableImageDrag: disableImageDrag,
+ enableImageDrag: enableImageDrag,
+ preventOutline: preventOutline,
+ restoreOutline: restoreOutline,
+ getSizedParentNode: getSizedParentNode,
+ getScale: getScale
+});
+
+/*
+ * @namespace DomEvent
+ * Utility functions to work with the [DOM events](https://developer.mozilla.org/docs/Web/API/Event), used by Leaflet internally.
+ */
+
+// Inspired by John Resig, Dean Edwards and YUI addEvent implementations.
- if (this._loaded && (this.getZoom() > this.options.maxZoom)) {
- return this.setZoom(zoom);
+// @function on(el: HTMLElement, types: String, fn: Function, context?: Object): this
+// Adds a listener function (`fn`) to a particular DOM event type of the
+// element `el`. You can optionally specify the context of the listener
+// (object the `this` keyword will point to). You can also pass several
+// space-separated types (e.g. `'click dblclick'`).
+
+// @alternative
+// @function on(el: HTMLElement, eventMap: Object, context?: Object): this
+// Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`
+function on(obj, types, fn, context) {
+
+ if (typeof types === 'object') {
+ for (var type in types) {
+ addOne(obj, type, types[type], fn);
}
+ } else {
+ types = splitWords(types);
- return this;
- },
+ for (var i = 0, len = types.length; i < len; i++) {
+ addOne(obj, types[i], fn, context);
+ }
+ }
- // @method panInsideBounds(bounds: LatLngBounds, options?: Pan options): this
- // Pans the map to the closest view that would lie inside the given bounds (if it's not already), controlling the animation using the options specific, if any.
- panInsideBounds: function (bounds, options) {
- this._enforcingBounds = true;
- var center = this.getCenter(),
- newCenter = this._limitCenter(center, this._zoom, L.latLngBounds(bounds));
+ return this;
+}
- if (!center.equals(newCenter)) {
- this.panTo(newCenter, options);
+var eventsKey = '_leaflet_events';
+
+// @function off(el: HTMLElement, types: String, fn: Function, context?: Object): this
+// Removes a previously added listener function.
+// Note that if you passed a custom context to on, you must pass the same
+// context to `off` in order to remove the listener.
+
+// @alternative
+// @function off(el: HTMLElement, eventMap: Object, context?: Object): this
+// Removes a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`
+function off(obj, types, fn, context) {
+
+ if (typeof types === 'object') {
+ for (var type in types) {
+ removeOne(obj, type, types[type], fn);
}
+ } else if (types) {
+ types = splitWords(types);
- this._enforcingBounds = false;
- return this;
- },
+ for (var i = 0, len = types.length; i < len; i++) {
+ removeOne(obj, types[i], fn, context);
+ }
+ } else {
+ for (var j in obj[eventsKey]) {
+ removeOne(obj, j, obj[eventsKey][j]);
+ }
+ delete obj[eventsKey];
+ }
- // @method invalidateSize(options: Zoom/Pan options): this
- // Checks if the map container size changed and updates the map if so —
- // call it after you've changed the map size dynamically, also animating
- // pan by default. If `options.pan` is `false`, panning will not occur.
- // If `options.debounceMoveend` is `true`, it will delay `moveend` event so
- // that it doesn't happen often even if the method is called many
- // times in a row.
+ return this;
+}
- // @alternative
- // @method invalidateSize(animate: Boolean): this
- // Checks if the map container size changed and updates the map if so —
- // call it after you've changed the map size dynamically, also animating
- // pan by default.
- invalidateSize: function (options) {
- if (!this._loaded) { return this; }
+function addOne(obj, type, fn, context) {
+ var id = type + stamp(fn) + (context ? '_' + stamp(context) : '');
- options = L.extend({
- animate: false,
- pan: true
- }, options === true ? {animate: true} : options);
+ if (obj[eventsKey] && obj[eventsKey][id]) { return this; }
- var oldSize = this.getSize();
- this._sizeChanged = true;
- this._lastCenter = null;
+ var handler = function (e) {
+ return fn.call(context || obj, e || window.event);
+ };
- var newSize = this.getSize(),
- oldCenter = oldSize.divideBy(2).round(),
- newCenter = newSize.divideBy(2).round(),
- offset = oldCenter.subtract(newCenter);
+ var originalHandler = handler;
- if (!offset.x && !offset.y) { return this; }
+ if (pointer && type.indexOf('touch') === 0) {
+ // Needs DomEvent.Pointer.js
+ addPointerListener(obj, type, handler, id);
- if (options.animate && options.pan) {
- this.panBy(offset);
+ } else if (touch && (type === 'dblclick') && addDoubleTapListener &&
+ !(pointer && chrome)) {
+ // Chrome >55 does not need the synthetic dblclicks from addDoubleTapListener
+ // See #5180
+ addDoubleTapListener(obj, handler, id);
- } else {
- if (options.pan) {
- this._rawPanBy(offset);
- }
+ } else if ('addEventListener' in obj) {
- this.fire('move');
+ if (type === 'mousewheel') {
+ obj.addEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, passiveEvents ? {passive: false} : false);
- if (options.debounceMoveend) {
- clearTimeout(this._sizeTimer);
- this._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200);
- } else {
- this.fire('moveend');
+ } else if ((type === 'mouseenter') || (type === 'mouseleave')) {
+ handler = function (e) {
+ e = e || window.event;
+ if (isExternalTarget(obj, e)) {
+ originalHandler(e);
+ }
+ };
+ obj.addEventListener(type === 'mouseenter' ? 'mouseover' : 'mouseout', handler, false);
+
+ } else {
+ if (type === 'click' && android) {
+ handler = function (e) {
+ filterClick(e, originalHandler);
+ };
}
+ obj.addEventListener(type, handler, false);
}
- // @section Map state change events
- // @event resize: ResizeEvent
- // Fired when the map is resized.
- return this.fire('resize', {
- oldSize: oldSize,
- newSize: newSize
- });
- },
+ } else if ('attachEvent' in obj) {
+ obj.attachEvent('on' + type, handler);
+ }
- // @section Methods for modifying map state
- // @method stop(): this
- // Stops the currently running `panTo` or `flyTo` animation, if any.
- stop: function () {
- this.setZoom(this._limitZoom(this._zoom));
- if (!this.options.zoomSnap) {
- this.fire('viewreset');
- }
- return this._stop();
- },
+ obj[eventsKey] = obj[eventsKey] || {};
+ obj[eventsKey][id] = handler;
+}
- // @section Geolocation methods
- // @method locate(options?: Locate options): this
- // Tries to locate the user using the Geolocation API, firing a [`locationfound`](#map-locationfound)
- // event with location data on success or a [`locationerror`](#map-locationerror) event on failure,
- // and optionally sets the map view to the user's location with respect to
- // detection accuracy (or to the world view if geolocation failed).
- // Note that, if your page doesn't use HTTPS, this method will fail in
- // modern browsers ([Chrome 50 and newer](https://sites.google.com/a/chromium.org/dev/Home/chromium-security/deprecating-powerful-features-on-insecure-origins))
- // See `Locate options` for more details.
- locate: function (options) {
+function removeOne(obj, type, fn, context) {
- options = this._locateOptions = L.extend({
- timeout: 10000,
- watch: false
- // setView: false
- // maxZoom: <Number>
- // maximumAge: 0
- // enableHighAccuracy: false
- }, options);
+ var id = type + stamp(fn) + (context ? '_' + stamp(context) : ''),
+ handler = obj[eventsKey] && obj[eventsKey][id];
- if (!('geolocation' in navigator)) {
- this._handleGeolocationError({
- code: 0,
- message: 'Geolocation not supported.'
- });
- return this;
- }
+ if (!handler) { return this; }
- var onResponse = L.bind(this._handleGeolocationResponse, this),
- onError = L.bind(this._handleGeolocationError, this);
+ if (pointer && type.indexOf('touch') === 0) {
+ removePointerListener(obj, type, id);
- if (options.watch) {
- this._locationWatchId =
- navigator.geolocation.watchPosition(onResponse, onError, options);
- } else {
- navigator.geolocation.getCurrentPosition(onResponse, onError, options);
- }
- return this;
- },
+ } else if (touch && (type === 'dblclick') && removeDoubleTapListener &&
+ !(pointer && chrome)) {
+ removeDoubleTapListener(obj, id);
- // @method stopLocate(): this
- // Stops watching location previously initiated by `map.locate({watch: true})`
- // and aborts resetting the map view if map.locate was called with
- // `{setView: true}`.
- stopLocate: function () {
- if (navigator.geolocation && navigator.geolocation.clearWatch) {
- navigator.geolocation.clearWatch(this._locationWatchId);
- }
- if (this._locateOptions) {
- this._locateOptions.setView = false;
- }
- return this;
- },
+ } else if ('removeEventListener' in obj) {
- _handleGeolocationError: function (error) {
- var c = error.code,
- message = error.message ||
- (c === 1 ? 'permission denied' :
- (c === 2 ? 'position unavailable' : 'timeout'));
+ if (type === 'mousewheel') {
+ obj.removeEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, passiveEvents ? {passive: false} : false);
- if (this._locateOptions.setView && !this._loaded) {
- this.fitWorld();
+ } else {
+ obj.removeEventListener(
+ type === 'mouseenter' ? 'mouseover' :
+ type === 'mouseleave' ? 'mouseout' : type, handler, false);
}
- // @section Location events
- // @event locationerror: ErrorEvent
- // Fired when geolocation (using the [`locate`](#map-locate) method) failed.
- this.fire('locationerror', {
- code: c,
- message: 'Geolocation error: ' + message + '.'
- });
- },
+ } else if ('detachEvent' in obj) {
+ obj.detachEvent('on' + type, handler);
+ }
- _handleGeolocationResponse: function (pos) {
- var lat = pos.coords.latitude,
- lng = pos.coords.longitude,
- latlng = new L.LatLng(lat, lng),
- bounds = latlng.toBounds(pos.coords.accuracy),
- options = this._locateOptions;
+ obj[eventsKey][id] = null;
+}
- if (options.setView) {
- var zoom = this.getBoundsZoom(bounds);
- this.setView(latlng, options.maxZoom ? Math.min(zoom, options.maxZoom) : zoom);
- }
+// @function stopPropagation(ev: DOMEvent): this
+// Stop the given event from propagation to parent elements. Used inside the listener functions:
+// ```js
+// L.DomEvent.on(div, 'click', function (ev) {
+// L.DomEvent.stopPropagation(ev);
+// });
+// ```
+function stopPropagation(e) {
- var data = {
- latlng: latlng,
- bounds: bounds,
- timestamp: pos.timestamp
- };
+ if (e.stopPropagation) {
+ e.stopPropagation();
+ } else if (e.originalEvent) { // In case of Leaflet event.
+ e.originalEvent._stopped = true;
+ } else {
+ e.cancelBubble = true;
+ }
+ skipped(e);
- for (var i in pos.coords) {
- if (typeof pos.coords[i] === 'number') {
- data[i] = pos.coords[i];
- }
- }
+ return this;
+}
- // @event locationfound: LocationEvent
- // Fired when geolocation (using the [`locate`](#map-locate) method)
- // went successfully.
- this.fire('locationfound', data);
- },
+// @function disableScrollPropagation(el: HTMLElement): this
+// Adds `stopPropagation` to the element's `'mousewheel'` events (plus browser variants).
+function disableScrollPropagation(el) {
+ addOne(el, 'mousewheel', stopPropagation);
+ return this;
+}
- // TODO handler.addTo
- // TODO Appropiate docs section?
- // @section Other Methods
- // @method addHandler(name: String, HandlerClass: Function): this
- // Adds a new `Handler` to the map, given its name and constructor function.
- addHandler: function (name, HandlerClass) {
- if (!HandlerClass) { return this; }
+// @function disableClickPropagation(el: HTMLElement): this
+// Adds `stopPropagation` to the element's `'click'`, `'doubleclick'`,
+// `'mousedown'` and `'touchstart'` events (plus browser variants).
+function disableClickPropagation(el) {
+ on(el, 'mousedown touchstart dblclick', stopPropagation);
+ addOne(el, 'click', fakeStop);
+ return this;
+}
- var handler = this[name] = new HandlerClass(this);
+// @function preventDefault(ev: DOMEvent): this
+// Prevents the default action of the DOM Event `ev` from happening (such as
+// following a link in the href of the a element, or doing a POST request
+// with page reload when a `<form>` is submitted).
+// Use it inside listener functions.
+function preventDefault(e) {
+ if (e.preventDefault) {
+ e.preventDefault();
+ } else {
+ e.returnValue = false;
+ }
+ return this;
+}
- this._handlers.push(handler);
+// @function stop(ev: DOMEvent): this
+// Does `stopPropagation` and `preventDefault` at the same time.
+function stop(e) {
+ preventDefault(e);
+ stopPropagation(e);
+ return this;
+}
- if (this.options[name]) {
- handler.enable();
- }
+// @function getMousePosition(ev: DOMEvent, container?: HTMLElement): Point
+// Gets normalized mouse position from a DOM event relative to the
+// `container` (border excluded) or to the whole page if not specified.
+function getMousePosition(e, container) {
+ if (!container) {
+ return new Point(e.clientX, e.clientY);
+ }
- return this;
- },
+ var scale = getScale(container),
+ offset = scale.boundingClientRect; // left and top values are in page scale (like the event clientX/Y)
- // @method remove(): this
- // Destroys the map and clears all related event listeners.
- remove: function () {
+ return new Point(
+ // offset.left/top values are in page scale (like clientX/Y),
+ // whereas clientLeft/Top (border width) values are the original values (before CSS scale applies).
+ (e.clientX - offset.left) / scale.x - container.clientLeft,
+ (e.clientY - offset.top) / scale.y - container.clientTop
+ );
+}
- this._initEvents(true);
+// Chrome on Win scrolls double the pixels as in other platforms (see #4538),
+// and Firefox scrolls device pixels, not CSS pixels
+var wheelPxFactor =
+ (win && chrome) ? 2 * window.devicePixelRatio :
+ gecko ? window.devicePixelRatio : 1;
+
+// @function getWheelDelta(ev: DOMEvent): Number
+// Gets normalized wheel delta from a mousewheel DOM event, in vertical
+// pixels scrolled (negative if scrolling down).
+// Events from pointing devices without precise scrolling are mapped to
+// a best guess of 60 pixels.
+function getWheelDelta(e) {
+ return (edge) ? e.wheelDeltaY / 2 : // Don't trust window-geometry-based delta
+ (e.deltaY && e.deltaMode === 0) ? -e.deltaY / wheelPxFactor : // Pixels
+ (e.deltaY && e.deltaMode === 1) ? -e.deltaY * 20 : // Lines
+ (e.deltaY && e.deltaMode === 2) ? -e.deltaY * 60 : // Pages
+ (e.deltaX || e.deltaZ) ? 0 : // Skip horizontal/depth wheel events
+ e.wheelDelta ? (e.wheelDeltaY || e.wheelDelta) / 2 : // Legacy IE pixels
+ (e.detail && Math.abs(e.detail) < 32765) ? -e.detail * 20 : // Legacy Moz lines
+ e.detail ? e.detail / -32765 * 60 : // Legacy Moz pages
+ 0;
+}
- if (this._containerId !== this._container._leaflet_id) {
- throw new Error('Map container is being reused by another instance');
- }
+var skipEvents = {};
- try {
- // throws error in IE6-8
- delete this._container._leaflet_id;
- delete this._containerId;
- } catch (e) {
- /*eslint-disable */
- this._container._leaflet_id = undefined;
- /*eslint-enable */
- this._containerId = undefined;
- }
+function fakeStop(e) {
+ // fakes stopPropagation by setting a special event flag, checked/reset with skipped(e)
+ skipEvents[e.type] = true;
+}
- L.DomUtil.remove(this._mapPane);
+function skipped(e) {
+ var events = skipEvents[e.type];
+ // reset when checking, as it's only used in map container and propagates outside of the map
+ skipEvents[e.type] = false;
+ return events;
+}
- if (this._clearControlPos) {
- this._clearControlPos();
- }
+// check if element really left/entered the event target (for mouseenter/mouseleave)
+function isExternalTarget(el, e) {
- this._clearHandlers();
+ var related = e.relatedTarget;
- if (this._loaded) {
- // @section Map state change events
- // @event unload: Event
- // Fired when the map is destroyed with [remove](#map-remove) method.
- this.fire('unload');
- }
+ if (!related) { return true; }
- for (var i in this._layers) {
- this._layers[i].remove();
+ try {
+ while (related && (related !== el)) {
+ related = related.parentNode;
}
+ } catch (err) {
+ return false;
+ }
+ return (related !== el);
+}
- return this;
- },
+var lastClick;
- // @section Other Methods
- // @method createPane(name: String, container?: HTMLElement): HTMLElement
- // Creates a new [map pane](#map-pane) with the given name if it doesn't exist already,
- // then returns it. The pane is created as a children of `container`, or
- // as a children of the main map pane if not set.
- createPane: function (name, container) {
- var className = 'leaflet-pane' + (name ? ' leaflet-' + name.replace('Pane', '') + '-pane' : ''),
- pane = L.DomUtil.create('div', className, container || this._mapPane);
+// this is a horrible workaround for a bug in Android where a single touch triggers two click events
+function filterClick(e, handler) {
+ var timeStamp = (e.timeStamp || (e.originalEvent && e.originalEvent.timeStamp)),
+ elapsed = lastClick && (timeStamp - lastClick);
- if (name) {
- this._panes[name] = pane;
- }
- return pane;
- },
+ // are they closer together than 500ms yet more than 100ms?
+ // Android typically triggers them ~300ms apart while multiple listeners
+ // on the same event should be triggered far faster;
+ // or check if click is simulated on the element, and if it is, reject any non-simulated events
- // @section Methods for Getting Map State
+ if ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) {
+ stop(e);
+ return;
+ }
+ lastClick = timeStamp;
- // @method getCenter(): LatLng
- // Returns the geographical center of the map view
- getCenter: function () {
- this._checkIfLoaded();
+ handler(e);
+}
- if (this._lastCenter && !this._moved()) {
- return this._lastCenter;
- }
- return this.layerPointToLatLng(this._getCenterLayerPoint());
- },
- // @method getZoom(): Number
- // Returns the current zoom level of the map view
- getZoom: function () {
- return this._zoom;
- },
- // @method getBounds(): LatLngBounds
- // Returns the geographical bounds visible in the current map view
- getBounds: function () {
- var bounds = this.getPixelBounds(),
- sw = this.unproject(bounds.getBottomLeft()),
- ne = this.unproject(bounds.getTopRight());
- return new L.LatLngBounds(sw, ne);
- },
+var DomEvent = (Object.freeze || Object)({
+ on: on,
+ off: off,
+ stopPropagation: stopPropagation,
+ disableScrollPropagation: disableScrollPropagation,
+ disableClickPropagation: disableClickPropagation,
+ preventDefault: preventDefault,
+ stop: stop,
+ getMousePosition: getMousePosition,
+ getWheelDelta: getWheelDelta,
+ fakeStop: fakeStop,
+ skipped: skipped,
+ isExternalTarget: isExternalTarget,
+ addListener: on,
+ removeListener: off
+});
- // @method getMinZoom(): Number
- // Returns the minimum zoom level of the map (if set in the `minZoom` option of the map or of any layers), or `0` by default.
- getMinZoom: function () {
- return this.options.minZoom === undefined ? this._layersMinZoom || 0 : this.options.minZoom;
- },
+/*
+ * @class PosAnimation
+ * @aka L.PosAnimation
+ * @inherits Evented
+ * Used internally for panning animations, utilizing CSS3 Transitions for modern browsers and a timer fallback for IE6-9.
+ *
+ * @example
+ * ```js
+ * var fx = new L.PosAnimation();
+ * fx.run(el, [300, 500], 0.5);
+ * ```
+ *
+ * @constructor L.PosAnimation()
+ * Creates a `PosAnimation` object.
+ *
+ */
- // @method getMaxZoom(): Number
- // Returns the maximum zoom level of the map (if set in the `maxZoom` option of the map or of any layers).
- getMaxZoom: function () {
- return this.options.maxZoom === undefined ?
- (this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) :
- this.options.maxZoom;
- },
+var PosAnimation = Evented.extend({
- // @method getBoundsZoom(bounds: LatLngBounds, inside?: Boolean): Number
- // Returns the maximum zoom level on which the given bounds fit to the map
- // view in its entirety. If `inside` (optional) is set to `true`, the method
- // instead returns the minimum zoom level on which the map view fits into
- // the given bounds in its entirety.
- getBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number
- bounds = L.latLngBounds(bounds);
- padding = L.point(padding || [0, 0]);
+ // @method run(el: HTMLElement, newPos: Point, duration?: Number, easeLinearity?: Number)
+ // Run an animation of a given element to a new position, optionally setting
+ // duration in seconds (`0.25` by default) and easing linearity factor (3rd
+ // argument of the [cubic bezier curve](http://cubic-bezier.com/#0,0,.5,1),
+ // `0.5` by default).
+ run: function (el, newPos, duration, easeLinearity) {
+ this.stop();
- var zoom = this.getZoom() || 0,
- min = this.getMinZoom(),
- max = this.getMaxZoom(),
- nw = bounds.getNorthWest(),
- se = bounds.getSouthEast(),
- size = this.getSize().subtract(padding),
- boundsSize = L.bounds(this.project(se, zoom), this.project(nw, zoom)).getSize(),
- snap = L.Browser.any3d ? this.options.zoomSnap : 1;
+ this._el = el;
+ this._inProgress = true;
+ this._duration = duration || 0.25;
+ this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2);
- var scale = Math.min(size.x / boundsSize.x, size.y / boundsSize.y);
- zoom = this.getScaleZoom(scale, zoom);
+ this._startPos = getPosition(el);
+ this._offset = newPos.subtract(this._startPos);
+ this._startTime = +new Date();
- if (snap) {
- zoom = Math.round(zoom / (snap / 100)) * (snap / 100); // don't jump if within 1% of a snap level
- zoom = inside ? Math.ceil(zoom / snap) * snap : Math.floor(zoom / snap) * snap;
- }
+ // @event start: Event
+ // Fired when the animation starts
+ this.fire('start');
- return Math.max(min, Math.min(max, zoom));
+ this._animate();
},
- // @method getSize(): Point
- // Returns the current size of the map container (in pixels).
- getSize: function () {
- if (!this._size || this._sizeChanged) {
- this._size = new L.Point(
- this._container.clientWidth || 0,
- this._container.clientHeight || 0);
-
- this._sizeChanged = false;
- }
- return this._size.clone();
- },
-
- // @method getPixelBounds(): Bounds
- // Returns the bounds of the current map view in projected pixel
- // coordinates (sometimes useful in layer and overlay implementations).
- getPixelBounds: function (center, zoom) {
- var topLeftPoint = this._getTopLeftPoint(center, zoom);
- return new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize()));
- },
+ // @method stop()
+ // Stops the animation (if currently running).
+ stop: function () {
+ if (!this._inProgress) { return; }
- // TODO: Check semantics - isn't the pixel origin the 0,0 coord relative to
- // the map pane? "left point of the map layer" can be confusing, specially
- // since there can be negative offsets.
- // @method getPixelOrigin(): Point
- // Returns the projected pixel coordinates of the top left point of
- // the map layer (useful in custom layer and overlay implementations).
- getPixelOrigin: function () {
- this._checkIfLoaded();
- return this._pixelOrigin;
+ this._step(true);
+ this._complete();
},
- // @method getPixelWorldBounds(zoom?: Number): Bounds
- // Returns the world's bounds in pixel coordinates for zoom level `zoom`.
- // If `zoom` is omitted, the map's current zoom level is used.
- getPixelWorldBounds: function (zoom) {
- return this.options.crs.getProjectedBounds(zoom === undefined ? this.getZoom() : zoom);
+ _animate: function () {
+ // animation loop
+ this._animId = requestAnimFrame(this._animate, this);
+ this._step();
},
- // @section Other Methods
+ _step: function (round) {
+ var elapsed = (+new Date()) - this._startTime,
+ duration = this._duration * 1000;
- // @method getPane(pane: String|HTMLElement): HTMLElement
- // Returns a [map pane](#map-pane), given its name or its HTML element (its identity).
- getPane: function (pane) {
- return typeof pane === 'string' ? this._panes[pane] : pane;
+ if (elapsed < duration) {
+ this._runFrame(this._easeOut(elapsed / duration), round);
+ } else {
+ this._runFrame(1);
+ this._complete();
+ }
},
- // @method getPanes(): Object
- // Returns a plain object containing the names of all [panes](#map-pane) as keys and
- // the panes as values.
- getPanes: function () {
- return this._panes;
- },
+ _runFrame: function (progress, round) {
+ var pos = this._startPos.add(this._offset.multiplyBy(progress));
+ if (round) {
+ pos._round();
+ }
+ setPosition(this._el, pos);
- // @method getContainer: HTMLElement
- // Returns the HTML element that contains the map.
- getContainer: function () {
- return this._container;
+ // @event step: Event
+ // Fired continuously during the animation.
+ this.fire('step');
},
+ _complete: function () {
+ cancelAnimFrame(this._animId);
- // @section Conversion Methods
-
- // @method getZoomScale(toZoom: Number, fromZoom: Number): Number
- // Returns the scale factor to be applied to a map transition from zoom level
- // `fromZoom` to `toZoom`. Used internally to help with zoom animations.
- getZoomScale: function (toZoom, fromZoom) {
- // TODO replace with universal implementation after refactoring projections
- var crs = this.options.crs;
- fromZoom = fromZoom === undefined ? this._zoom : fromZoom;
- return crs.scale(toZoom) / crs.scale(fromZoom);
+ this._inProgress = false;
+ // @event end: Event
+ // Fired when the animation ends.
+ this.fire('end');
},
- // @method getScaleZoom(scale: Number, fromZoom: Number): Number
- // Returns the zoom level that the map would end up at, if it is at `fromZoom`
- // level and everything is scaled by a factor of `scale`. Inverse of
- // [`getZoomScale`](#map-getZoomScale).
- getScaleZoom: function (scale, fromZoom) {
- var crs = this.options.crs;
- fromZoom = fromZoom === undefined ? this._zoom : fromZoom;
- var zoom = crs.zoom(scale * crs.scale(fromZoom));
- return isNaN(zoom) ? Infinity : zoom;
- },
+ _easeOut: function (t) {
+ return 1 - Math.pow(1 - t, this._easeOutPower);
+ }
+});
- // @method project(latlng: LatLng, zoom: Number): Point
- // Projects a geographical coordinate `LatLng` according to the projection
- // of the map's CRS, then scales it according to `zoom` and the CRS's
- // `Transformation`. The result is pixel coordinate relative to
- // the CRS origin.
- project: function (latlng, zoom) {
- zoom = zoom === undefined ? this._zoom : zoom;
- return this.options.crs.latLngToPoint(L.latLng(latlng), zoom);
- },
+/*
+ * @class Map
+ * @aka L.Map
+ * @inherits Evented
+ *
+ * The central class of the API — it is used to create a map on a page and manipulate it.
+ *
+ * @example
+ *
+ * ```js
+ * // initialize the map on the "map" div with a given center and zoom
+ * var map = L.map('map', {
+ * center: [51.505, -0.09],
+ * zoom: 13
+ * });
+ * ```
+ *
+ */
- // @method unproject(point: Point, zoom: Number): LatLng
- // Inverse of [`project`](#map-project).
- unproject: function (point, zoom) {
- zoom = zoom === undefined ? this._zoom : zoom;
- return this.options.crs.pointToLatLng(L.point(point), zoom);
- },
+var Map = Evented.extend({
- // @method layerPointToLatLng(point: Point): LatLng
- // Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin),
- // returns the corresponding geographical coordinate (for the current zoom level).
- layerPointToLatLng: function (point) {
- var projectedPoint = L.point(point).add(this.getPixelOrigin());
- return this.unproject(projectedPoint);
- },
+ options: {
+ // @section Map State Options
+ // @option crs: CRS = L.CRS.EPSG3857
+ // The [Coordinate Reference System](#crs) to use. Don't change this if you're not
+ // sure what it means.
+ crs: EPSG3857,
- // @method latLngToLayerPoint(latlng: LatLng): Point
- // Given a geographical coordinate, returns the corresponding pixel coordinate
- // relative to the [origin pixel](#map-getpixelorigin).
- latLngToLayerPoint: function (latlng) {
- var projectedPoint = this.project(L.latLng(latlng))._round();
- return projectedPoint._subtract(this.getPixelOrigin());
- },
+ // @option center: LatLng = undefined
+ // Initial geographic center of the map
+ center: undefined,
- // @method wrapLatLng(latlng: LatLng): LatLng
- // Returns a `LatLng` where `lat` and `lng` has been wrapped according to the
- // map's CRS's `wrapLat` and `wrapLng` properties, if they are outside the
- // CRS's bounds.
- // By default this means longitude is wrapped around the dateline so its
- // value is between -180 and +180 degrees.
- wrapLatLng: function (latlng) {
- return this.options.crs.wrapLatLng(L.latLng(latlng));
- },
+ // @option zoom: Number = undefined
+ // Initial map zoom level
+ zoom: undefined,
- // @method wrapLatLngBounds(bounds: LatLngBounds): LatLngBounds
- // Returns a `LatLngBounds` with the same size as the given one, ensuring that
- // its center is within the CRS's bounds.
- // By default this means the center longitude is wrapped around the dateline so its
- // value is between -180 and +180 degrees, and the majority of the bounds
- // overlaps the CRS's bounds.
- wrapLatLngBounds: function (latlng) {
- return this.options.crs.wrapLatLngBounds(L.latLngBounds(latlng));
- },
+ // @option minZoom: Number = *
+ // Minimum zoom level of the map.
+ // If not specified and at least one `GridLayer` or `TileLayer` is in the map,
+ // the lowest of their `minZoom` options will be used instead.
+ minZoom: undefined,
- // @method distance(latlng1: LatLng, latlng2: LatLng): Number
- // Returns the distance between two geographical coordinates according to
- // the map's CRS. By default this measures distance in meters.
- distance: function (latlng1, latlng2) {
- return this.options.crs.distance(L.latLng(latlng1), L.latLng(latlng2));
- },
+ // @option maxZoom: Number = *
+ // Maximum zoom level of the map.
+ // If not specified and at least one `GridLayer` or `TileLayer` is in the map,
+ // the highest of their `maxZoom` options will be used instead.
+ maxZoom: undefined,
- // @method containerPointToLayerPoint(point: Point): Point
- // Given a pixel coordinate relative to the map container, returns the corresponding
- // pixel coordinate relative to the [origin pixel](#map-getpixelorigin).
- containerPointToLayerPoint: function (point) { // (Point)
- return L.point(point).subtract(this._getMapPanePos());
- },
+ // @option layers: Layer[] = []
+ // Array of layers that will be added to the map initially
+ layers: [],
- // @method layerPointToContainerPoint(point: Point): Point
- // Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin),
- // returns the corresponding pixel coordinate relative to the map container.
- layerPointToContainerPoint: function (point) { // (Point)
- return L.point(point).add(this._getMapPanePos());
- },
+ // @option maxBounds: LatLngBounds = null
+ // When this option is set, the map restricts the view to the given
+ // geographical bounds, bouncing the user back if the user tries to pan
+ // outside the view. To set the restriction dynamically, use
+ // [`setMaxBounds`](#map-setmaxbounds) method.
+ maxBounds: undefined,
- // @method containerPointToLatLng(point: Point): LatLng
- // Given a pixel coordinate relative to the map container, returns
- // the corresponding geographical coordinate (for the current zoom level).
- containerPointToLatLng: function (point) {
- var layerPoint = this.containerPointToLayerPoint(L.point(point));
- return this.layerPointToLatLng(layerPoint);
- },
+ // @option renderer: Renderer = *
+ // The default method for drawing vector layers on the map. `L.SVG`
+ // or `L.Canvas` by default depending on browser support.
+ renderer: undefined,
- // @method latLngToContainerPoint(latlng: LatLng): Point
- // Given a geographical coordinate, returns the corresponding pixel coordinate
- // relative to the map container.
- latLngToContainerPoint: function (latlng) {
- return this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng)));
- },
- // @method mouseEventToContainerPoint(ev: MouseEvent): Point
- // Given a MouseEvent object, returns the pixel coordinate relative to the
- // map container where the event took place.
- mouseEventToContainerPoint: function (e) {
- return L.DomEvent.getMousePosition(e, this._container);
- },
+ // @section Animation Options
+ // @option zoomAnimation: Boolean = true
+ // Whether the map zoom animation is enabled. By default it's enabled
+ // in all browsers that support CSS3 Transitions except Android.
+ zoomAnimation: true,
- // @method mouseEventToLayerPoint(ev: MouseEvent): Point
- // Given a MouseEvent object, returns the pixel coordinate relative to
- // the [origin pixel](#map-getpixelorigin) where the event took place.
- mouseEventToLayerPoint: function (e) {
- return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e));
- },
+ // @option zoomAnimationThreshold: Number = 4
+ // Won't animate zoom if the zoom difference exceeds this value.
+ zoomAnimationThreshold: 4,
- // @method mouseEventToLatLng(ev: MouseEvent): LatLng
- // Given a MouseEvent object, returns geographical coordinate where the
- // event took place.
- mouseEventToLatLng: function (e) { // (MouseEvent)
- return this.layerPointToLatLng(this.mouseEventToLayerPoint(e));
- },
+ // @option fadeAnimation: Boolean = true
+ // Whether the tile fade animation is enabled. By default it's enabled
+ // in all browsers that support CSS3 Transitions except Android.
+ fadeAnimation: true,
+ // @option markerZoomAnimation: Boolean = true
+ // Whether markers animate their zoom with the zoom animation, if disabled
+ // they will disappear for the length of the animation. By default it's
+ // enabled in all browsers that support CSS3 Transitions except Android.
+ markerZoomAnimation: true,
- // map initialization methods
+ // @option transform3DLimit: Number = 2^23
+ // Defines the maximum size of a CSS translation transform. The default
+ // value should not be changed unless a web browser positions layers in
+ // the wrong place after doing a large `panBy`.
+ transform3DLimit: 8388608, // Precision limit of a 32-bit float
- _initContainer: function (id) {
- var container = this._container = L.DomUtil.get(id);
+ // @section Interaction Options
+ // @option zoomSnap: Number = 1
+ // Forces the map's zoom level to always be a multiple of this, particularly
+ // right after a [`fitBounds()`](#map-fitbounds) or a pinch-zoom.
+ // By default, the zoom level snaps to the nearest integer; lower values
+ // (e.g. `0.5` or `0.1`) allow for greater granularity. A value of `0`
+ // means the zoom level will not be snapped after `fitBounds` or a pinch-zoom.
+ zoomSnap: 1,
- if (!container) {
- throw new Error('Map container not found.');
- } else if (container._leaflet_id) {
- throw new Error('Map container is already initialized.');
- }
+ // @option zoomDelta: Number = 1
+ // Controls how much the map's zoom level will change after a
+ // [`zoomIn()`](#map-zoomin), [`zoomOut()`](#map-zoomout), pressing `+`
+ // or `-` on the keyboard, or using the [zoom controls](#control-zoom).
+ // Values smaller than `1` (e.g. `0.5`) allow for greater granularity.
+ zoomDelta: 1,
- L.DomEvent.addListener(container, 'scroll', this._onScroll, this);
- this._containerId = L.Util.stamp(container);
+ // @option trackResize: Boolean = true
+ // Whether the map automatically handles browser window resize to update itself.
+ trackResize: true
},
- _initLayout: function () {
- var container = this._container;
-
- this._fadeAnimated = this.options.fadeAnimation && L.Browser.any3d;
+ initialize: function (id, options) { // (HTMLElement or String, Object)
+ options = setOptions(this, options);
- L.DomUtil.addClass(container, 'leaflet-container' +
- (L.Browser.touch ? ' leaflet-touch' : '') +
- (L.Browser.retina ? ' leaflet-retina' : '') +
- (L.Browser.ielt9 ? ' leaflet-oldie' : '') +
- (L.Browser.safari ? ' leaflet-safari' : '') +
- (this._fadeAnimated ? ' leaflet-fade-anim' : ''));
+ // Make sure to assign internal flags at the beginning,
+ // to avoid inconsistent state in some edge cases.
+ this._handlers = [];
+ this._layers = {};
+ this._zoomBoundLayers = {};
+ this._sizeChanged = true;
- var position = L.DomUtil.getStyle(container, 'position');
+ this._initContainer(id);
+ this._initLayout();
- if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') {
- container.style.position = 'relative';
- }
+ // hack for https://github.com/Leaflet/Leaflet/issues/1980
+ this._onResize = bind(this._onResize, this);
- this._initPanes();
+ this._initEvents();
- if (this._initControlPos) {
- this._initControlPos();
+ if (options.maxBounds) {
+ this.setMaxBounds(options.maxBounds);
}
- },
- _initPanes: function () {
- var panes = this._panes = {};
- this._paneRenderers = {};
+ if (options.zoom !== undefined) {
+ this._zoom = this._limitZoom(options.zoom);
+ }
- // @section
- //
- // Panes are DOM elements used to control the ordering of layers on the map. You
- // can access panes with [`map.getPane`](#map-getpane) or
- // [`map.getPanes`](#map-getpanes) methods. New panes can be created with the
- // [`map.createPane`](#map-createpane) method.
- //
- // Every map has the following default panes that differ only in zIndex.
- //
- // @pane mapPane: HTMLElement = 'auto'
- // Pane that contains all other map panes
+ if (options.center && options.zoom !== undefined) {
+ this.setView(toLatLng(options.center), options.zoom, {reset: true});
+ }
- this._mapPane = this.createPane('mapPane', this._container);
- L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));
+ this.callInitHooks();
- // @pane tilePane: HTMLElement = 200
- // Pane for `GridLayer`s and `TileLayer`s
- this.createPane('tilePane');
- // @pane overlayPane: HTMLElement = 400
- // Pane for vector overlays (`Path`s), like `Polyline`s and `Polygon`s
- this.createPane('shadowPane');
- // @pane shadowPane: HTMLElement = 500
- // Pane for overlay shadows (e.g. `Marker` shadows)
- this.createPane('overlayPane');
- // @pane markerPane: HTMLElement = 600
- // Pane for `Icon`s of `Marker`s
- this.createPane('markerPane');
- // @pane tooltipPane: HTMLElement = 650
- // Pane for tooltip.
- this.createPane('tooltipPane');
- // @pane popupPane: HTMLElement = 700
- // Pane for `Popup`s.
- this.createPane('popupPane');
+ // don't animate on browsers without hardware-accelerated transitions or old Android/Opera
+ this._zoomAnimated = TRANSITION && any3d && !mobileOpera &&
+ this.options.zoomAnimation;
- if (!this.options.markerZoomAnimation) {
- L.DomUtil.addClass(panes.markerPane, 'leaflet-zoom-hide');
- L.DomUtil.addClass(panes.shadowPane, 'leaflet-zoom-hide');
+ // zoom transitions run with the same duration for all layers, so if one of transitionend events
+ // happens after starting zoom animation (propagating to the map pane), we know that it ended globally
+ if (this._zoomAnimated) {
+ this._createAnimProxy();
+ on(this._proxy, TRANSITION_END, this._catchTransitionEnd, this);
}
- },
+ this._addLayers(this.options.layers);
+ },
- // private methods that modify map state
- // @section Map state change events
- _resetView: function (center, zoom) {
- L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));
+ // @section Methods for modifying map state
- var loading = !this._loaded;
- this._loaded = true;
- zoom = this._limitZoom(zoom);
+ // @method setView(center: LatLng, zoom: Number, options?: Zoom/pan options): this
+ // Sets the view of the map (geographical center and zoom) with the given
+ // animation options.
+ setView: function (center, zoom, options) {
- this.fire('viewprereset');
+ zoom = zoom === undefined ? this._zoom : this._limitZoom(zoom);
+ center = this._limitCenter(toLatLng(center), zoom, this.options.maxBounds);
+ options = options || {};
- var zoomChanged = this._zoom !== zoom;
- this
- ._moveStart(zoomChanged)
- ._move(center, zoom)
- ._moveEnd(zoomChanged);
+ this._stop();
- // @event viewreset: Event
- // Fired when the map needs to redraw its content (this usually happens
- // on map zoom or load). Very useful for creating custom overlays.
- this.fire('viewreset');
+ if (this._loaded && !options.reset && options !== true) {
- // @event load: Event
- // Fired when the map is initialized (when its center and zoom are set
- // for the first time).
- if (loading) {
- this.fire('load');
- }
- },
+ if (options.animate !== undefined) {
+ options.zoom = extend({animate: options.animate}, options.zoom);
+ options.pan = extend({animate: options.animate, duration: options.duration}, options.pan);
+ }
- _moveStart: function (zoomChanged) {
- // @event zoomstart: Event
- // Fired when the map zoom is about to change (e.g. before zoom animation).
- // @event movestart: Event
- // Fired when the view of the map starts changing (e.g. user starts dragging the map).
- if (zoomChanged) {
- this.fire('zoomstart');
- }
- return this.fire('movestart');
- },
+ // try animating pan or zoom
+ var moved = (this._zoom !== zoom) ?
+ this._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) :
+ this._tryAnimatedPan(center, options.pan);
- _move: function (center, zoom, data) {
- if (zoom === undefined) {
- zoom = this._zoom;
+ if (moved) {
+ // prevent resize handler call, the view will refresh after animation anyway
+ clearTimeout(this._sizeTimer);
+ return this;
+ }
}
- var zoomChanged = this._zoom !== zoom;
-
- this._zoom = zoom;
- this._lastCenter = center;
- this._pixelOrigin = this._getNewPixelOrigin(center);
- // @event zoom: Event
- // Fired repeatedly during any change in zoom level, including zoom
- // and fly animations.
- if (zoomChanged || (data && data.pinch)) { // Always fire 'zoom' if pinching because #3530
- this.fire('zoom', data);
- }
+ // animation didn't start, just reset the map view
+ this._resetView(center, zoom);
- // @event move: Event
- // Fired repeatedly during any movement of the map, including pan and
- // fly animations.
- return this.fire('move', data);
+ return this;
},
- _moveEnd: function (zoomChanged) {
- // @event zoomend: Event
- // Fired when the map has changed, after any animations.
- if (zoomChanged) {
- this.fire('zoomend');
+ // @method setZoom(zoom: Number, options?: Zoom/pan options): this
+ // Sets the zoom of the map.
+ setZoom: function (zoom, options) {
+ if (!this._loaded) {
+ this._zoom = zoom;
+ return this;
}
-
- // @event moveend: Event
- // Fired when the center of the map stops changing (e.g. user stopped
- // dragging the map).
- return this.fire('moveend');
+ return this.setView(this.getCenter(), zoom, {zoom: options});
},
- _stop: function () {
- L.Util.cancelAnimFrame(this._flyToFrame);
- if (this._panAnim) {
- this._panAnim.stop();
- }
- return this;
+ // @method zoomIn(delta?: Number, options?: Zoom options): this
+ // Increases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default).
+ zoomIn: function (delta, options) {
+ delta = delta || (any3d ? this.options.zoomDelta : 1);
+ return this.setZoom(this._zoom + delta, options);
},
- _rawPanBy: function (offset) {
- L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset));
+ // @method zoomOut(delta?: Number, options?: Zoom options): this
+ // Decreases the zoom of the map by `delta` ([`zoomDelta`](#map-zoomdelta) by default).
+ zoomOut: function (delta, options) {
+ delta = delta || (any3d ? this.options.zoomDelta : 1);
+ return this.setZoom(this._zoom - delta, options);
},
- _getZoomSpan: function () {
- return this.getMaxZoom() - this.getMinZoom();
- },
+ // @method setZoomAround(latlng: LatLng, zoom: Number, options: Zoom options): this
+ // Zooms the map while keeping a specified geographical point on the map
+ // stationary (e.g. used internally for scroll zoom and double-click zoom).
+ // @alternative
+ // @method setZoomAround(offset: Point, zoom: Number, options: Zoom options): this
+ // Zooms the map while keeping a specified pixel on the map (relative to the top-left corner) stationary.
+ setZoomAround: function (latlng, zoom, options) {
+ var scale = this.getZoomScale(zoom),
+ viewHalf = this.getSize().divideBy(2),
+ containerPoint = latlng instanceof Point ? latlng : this.latLngToContainerPoint(latlng),
- _panInsideMaxBounds: function () {
- if (!this._enforcingBounds) {
- this.panInsideBounds(this.options.maxBounds);
- }
- },
+ centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale),
+ newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset));
- _checkIfLoaded: function () {
- if (!this._loaded) {
- throw new Error('Set map center and zoom first.');
- }
+ return this.setView(newCenter, zoom, {zoom: options});
},
- // DOM event handling
+ _getBoundsCenterZoom: function (bounds, options) {
- // @section Interaction events
- _initEvents: function (remove) {
- if (!L.DomEvent) { return; }
+ options = options || {};
+ bounds = bounds.getBounds ? bounds.getBounds() : toLatLngBounds(bounds);
- this._targets = {};
- this._targets[L.stamp(this._container)] = this;
+ var paddingTL = toPoint(options.paddingTopLeft || options.padding || [0, 0]),
+ paddingBR = toPoint(options.paddingBottomRight || options.padding || [0, 0]),
- var onOff = remove ? 'off' : 'on';
+ zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR));
- // @event click: MouseEvent
- // Fired when the user clicks (or taps) the map.
- // @event dblclick: MouseEvent
- // Fired when the user double-clicks (or double-taps) the map.
- // @event mousedown: MouseEvent
- // Fired when the user pushes the mouse button on the map.
- // @event mouseup: MouseEvent
- // Fired when the user releases the mouse button on the map.
- // @event mouseover: MouseEvent
- // Fired when the mouse enters the map.
- // @event mouseout: MouseEvent
- // Fired when the mouse leaves the map.
- // @event mousemove: MouseEvent
- // Fired while the mouse moves over the map.
- // @event contextmenu: MouseEvent
- // Fired when the user pushes the right mouse button on the map, prevents
- // default browser context menu from showing if there are listeners on
- // this event. Also fired on mobile when the user holds a single touch
- // for a second (also called long press).
- // @event keypress: KeyboardEvent
- // Fired when the user presses a key from the keyboard while the map is focused.
- L.DomEvent[onOff](this._container, 'click dblclick mousedown mouseup ' +
- 'mouseover mouseout mousemove contextmenu keypress', this._handleDOMEvent, this);
+ zoom = (typeof options.maxZoom === 'number') ? Math.min(options.maxZoom, zoom) : zoom;
- if (this.options.trackResize) {
- L.DomEvent[onOff](window, 'resize', this._onResize, this);
+ if (zoom === Infinity) {
+ return {
+ center: bounds.getCenter(),
+ zoom: zoom
+ };
}
- if (L.Browser.any3d && this.options.transform3DLimit) {
- this[onOff]('moveend', this._onMoveEnd);
- }
+ var paddingOffset = paddingBR.subtract(paddingTL).divideBy(2),
+
+ swPoint = this.project(bounds.getSouthWest(), zoom),
+ nePoint = this.project(bounds.getNorthEast(), zoom),
+ center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom);
+
+ return {
+ center: center,
+ zoom: zoom
+ };
},
- _onResize: function () {
- L.Util.cancelAnimFrame(this._resizeRequest);
- this._resizeRequest = L.Util.requestAnimFrame(
- function () { this.invalidateSize({debounceMoveend: true}); }, this);
+ // @method fitBounds(bounds: LatLngBounds, options?: fitBounds options): this
+ // Sets a map view that contains the given geographical bounds with the
+ // maximum zoom level possible.
+ fitBounds: function (bounds, options) {
+
+ bounds = toLatLngBounds(bounds);
+
+ if (!bounds.isValid()) {
+ throw new Error('Bounds are not valid.');
+ }
+
+ var target = this._getBoundsCenterZoom(bounds, options);
+ return this.setView(target.center, target.zoom, options);
},
- _onScroll: function () {
- this._container.scrollTop = 0;
- this._container.scrollLeft = 0;
+ // @method fitWorld(options?: fitBounds options): this
+ // Sets a map view that mostly contains the whole world with the maximum
+ // zoom level possible.
+ fitWorld: function (options) {
+ return this.fitBounds([[-90, -180], [90, 180]], options);
},
- _onMoveEnd: function () {
- var pos = this._getMapPanePos();
- if (Math.max(Math.abs(pos.x), Math.abs(pos.y)) >= this.options.transform3DLimit) {
- // https://bugzilla.mozilla.org/show_bug.cgi?id=1203873 but Webkit also have
- // a pixel offset on very high values, see: http://jsfiddle.net/dg6r5hhb/
- this._resetView(this.getCenter(), this.getZoom());
- }
+ // @method panTo(latlng: LatLng, options?: Pan options): this
+ // Pans the map to a given center.
+ panTo: function (center, options) { // (LatLng)
+ return this.setView(center, this._zoom, {pan: options});
},
- _findEventTargets: function (e, type) {
- var targets = [],
- target,
- isHover = type === 'mouseout' || type === 'mouseover',
- src = e.target || e.srcElement,
- dragging = false;
+ // @method panBy(offset: Point, options?: Pan options): this
+ // Pans the map by a given number of pixels (animated).
+ panBy: function (offset, options) {
+ offset = toPoint(offset).round();
+ options = options || {};
- while (src) {
- target = this._targets[L.stamp(src)];
- if (target && (type === 'click' || type === 'preclick') && !e._simulated && this._draggableMoved(target)) {
- // Prevent firing click after you just dragged an object.
- dragging = true;
- break;
- }
- if (target && target.listens(type, true)) {
- if (isHover && !L.DomEvent._isExternalTarget(src, e)) { break; }
- targets.push(target);
- if (isHover) { break; }
- }
- if (src === this._container) { break; }
- src = src.parentNode;
+ if (!offset.x && !offset.y) {
+ return this.fire('moveend');
}
- if (!targets.length && !dragging && !isHover && L.DomEvent._isExternalTarget(src, e)) {
- targets = [this];
+ // If we pan too far, Chrome gets issues with tiles
+ // and makes them disappear or appear in the wrong place (slightly offset) #2602
+ if (options.animate !== true && !this.getSize().contains(offset)) {
+ this._resetView(this.unproject(this.project(this.getCenter()).add(offset)), this.getZoom());
+ return this;
}
- return targets;
- },
-
- _handleDOMEvent: function (e) {
- if (!this._loaded || L.DomEvent._skipped(e)) { return; }
- var type = e.type === 'keypress' && e.keyCode === 13 ? 'click' : e.type;
+ if (!this._panAnim) {
+ this._panAnim = new PosAnimation();
- if (type === 'mousedown') {
- // prevents outline when clicking on keyboard-focusable element
- L.DomUtil.preventOutline(e.target || e.srcElement);
+ this._panAnim.on({
+ 'step': this._onPanTransitionStep,
+ 'end': this._onPanTransitionEnd
+ }, this);
}
- this._fireDOMEvent(e, type);
- },
+ // don't fire movestart if animating inertia
+ if (!options.noMoveStart) {
+ this.fire('movestart');
+ }
- _fireDOMEvent: function (e, type, targets) {
+ // animate pan unless animate: false specified
+ if (options.animate !== false) {
+ addClass(this._mapPane, 'leaflet-pan-anim');
- if (e.type === 'click') {
- // Fire a synthetic 'preclick' event which propagates up (mainly for closing popups).
- // @event preclick: MouseEvent
- // Fired before mouse click on the map (sometimes useful when you
- // want something to happen on click before any existing click
- // handlers start running).
- var synth = L.Util.extend({}, e);
- synth.type = 'preclick';
- this._fireDOMEvent(synth, synth.type, targets);
+ var newPos = this._getMapPanePos().subtract(offset).round();
+ this._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity);
+ } else {
+ this._rawPanBy(offset);
+ this.fire('move').fire('moveend');
}
- if (e._stopped) { return; }
-
- // Find the layer the event is propagating from and its parents.
- targets = (targets || []).concat(this._findEventTargets(e, type));
+ return this;
+ },
- if (!targets.length) { return; }
+ // @method flyTo(latlng: LatLng, zoom?: Number, options?: Zoom/pan options): this
+ // Sets the view of the map (geographical center and zoom) performing a smooth
+ // pan-zoom animation.
+ flyTo: function (targetCenter, targetZoom, options) {
- var target = targets[0];
- if (type === 'contextmenu' && target.listens(type, true)) {
- L.DomEvent.preventDefault(e);
+ options = options || {};
+ if (options.animate === false || !any3d) {
+ return this.setView(targetCenter, targetZoom, options);
}
- var data = {
- originalEvent: e
- };
+ this._stop();
- if (e.type !== 'keypress') {
- var isMarker = target instanceof L.Marker;
- data.containerPoint = isMarker ?
- this.latLngToContainerPoint(target.getLatLng()) : this.mouseEventToContainerPoint(e);
- data.layerPoint = this.containerPointToLayerPoint(data.containerPoint);
- data.latlng = isMarker ? target.getLatLng() : this.layerPointToLatLng(data.layerPoint);
- }
+ var from = this.project(this.getCenter()),
+ to = this.project(targetCenter),
+ size = this.getSize(),
+ startZoom = this._zoom;
- for (var i = 0; i < targets.length; i++) {
- targets[i].fire(type, data, true);
- if (data.originalEvent._stopped ||
- (targets[i].options.nonBubblingEvents && L.Util.indexOf(targets[i].options.nonBubblingEvents, type) !== -1)) { return; }
- }
- },
+ targetCenter = toLatLng(targetCenter);
+ targetZoom = targetZoom === undefined ? startZoom : targetZoom;
- _draggableMoved: function (obj) {
- obj = obj.dragging && obj.dragging.enabled() ? obj : this;
- return (obj.dragging && obj.dragging.moved()) || (this.boxZoom && this.boxZoom.moved());
- },
+ var w0 = Math.max(size.x, size.y),
+ w1 = w0 * this.getZoomScale(startZoom, targetZoom),
+ u1 = (to.distanceTo(from)) || 1,
+ rho = 1.42,
+ rho2 = rho * rho;
- _clearHandlers: function () {
- for (var i = 0, len = this._handlers.length; i < len; i++) {
- this._handlers[i].disable();
- }
- },
+ function r(i) {
+ var s1 = i ? -1 : 1,
+ s2 = i ? w1 : w0,
+ t1 = w1 * w1 - w0 * w0 + s1 * rho2 * rho2 * u1 * u1,
+ b1 = 2 * s2 * rho2 * u1,
+ b = t1 / b1,
+ sq = Math.sqrt(b * b + 1) - b;
- // @section Other Methods
+ // workaround for floating point precision bug when sq = 0, log = -Infinite,
+ // thus triggering an infinite loop in flyTo
+ var log = sq < 0.000000001 ? -18 : Math.log(sq);
- // @method whenReady(fn: Function, context?: Object): this
- // Runs the given function `fn` when the map gets initialized with
- // a view (center and zoom) and at least one layer, or immediately
- // if it's already initialized, optionally passing a function context.
- whenReady: function (callback, context) {
- if (this._loaded) {
- callback.call(context || this, {target: this});
- } else {
- this.on('load', callback, context);
+ return log;
}
- return this;
- },
+ function sinh(n) { return (Math.exp(n) - Math.exp(-n)) / 2; }
+ function cosh(n) { return (Math.exp(n) + Math.exp(-n)) / 2; }
+ function tanh(n) { return sinh(n) / cosh(n); }
- // private methods for getting map state
+ var r0 = r(0);
- _getMapPanePos: function () {
- return L.DomUtil.getPosition(this._mapPane) || new L.Point(0, 0);
- },
+ function w(s) { return w0 * (cosh(r0) / cosh(r0 + rho * s)); }
+ function u(s) { return w0 * (cosh(r0) * tanh(r0 + rho * s) - sinh(r0)) / rho2; }
- _moved: function () {
- var pos = this._getMapPanePos();
- return pos && !pos.equals([0, 0]);
- },
+ function easeOut(t) { return 1 - Math.pow(1 - t, 1.5); }
- _getTopLeftPoint: function (center, zoom) {
- var pixelOrigin = center && zoom !== undefined ?
- this._getNewPixelOrigin(center, zoom) :
- this.getPixelOrigin();
- return pixelOrigin.subtract(this._getMapPanePos());
- },
+ var start = Date.now(),
+ S = (r(1) - r0) / rho,
+ duration = options.duration ? 1000 * options.duration : 1000 * S * 0.8;
- _getNewPixelOrigin: function (center, zoom) {
- var viewHalf = this.getSize()._divideBy(2);
- return this.project(center, zoom)._subtract(viewHalf)._add(this._getMapPanePos())._round();
- },
+ function frame() {
+ var t = (Date.now() - start) / duration,
+ s = easeOut(t) * S;
- _latLngToNewLayerPoint: function (latlng, zoom, center) {
- var topLeft = this._getNewPixelOrigin(center, zoom);
- return this.project(latlng, zoom)._subtract(topLeft);
- },
+ if (t <= 1) {
+ this._flyToFrame = requestAnimFrame(frame, this);
- _latLngBoundsToNewLayerBounds: function (latLngBounds, zoom, center) {
- var topLeft = this._getNewPixelOrigin(center, zoom);
- return L.bounds([
- this.project(latLngBounds.getSouthWest(), zoom)._subtract(topLeft),
- this.project(latLngBounds.getNorthWest(), zoom)._subtract(topLeft),
- this.project(latLngBounds.getSouthEast(), zoom)._subtract(topLeft),
- this.project(latLngBounds.getNorthEast(), zoom)._subtract(topLeft)
- ]);
- },
+ this._move(
+ this.unproject(from.add(to.subtract(from).multiplyBy(u(s) / u1)), startZoom),
+ this.getScaleZoom(w0 / w(s), startZoom),
+ {flyTo: true});
- // layer point of the current center
- _getCenterLayerPoint: function () {
- return this.containerPointToLayerPoint(this.getSize()._divideBy(2));
+ } else {
+ this
+ ._move(targetCenter, targetZoom)
+ ._moveEnd(true);
+ }
+ }
+
+ this._moveStart(true, options.noMoveStart);
+
+ frame.call(this);
+ return this;
},
- // offset of the specified place to the current center in pixels
- _getCenterOffset: function (latlng) {
- return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint());
+ // @method flyToBounds(bounds: LatLngBounds, options?: fitBounds options): this
+ // Sets the view of the map with a smooth animation like [`flyTo`](#map-flyto),
+ // but takes a bounds parameter like [`fitBounds`](#map-fitbounds).
+ flyToBounds: function (bounds, options) {
+ var target = this._getBoundsCenterZoom(bounds, options);
+ return this.flyTo(target.center, target.zoom, options);
},
- // adjust center for view to get inside bounds
- _limitCenter: function (center, zoom, bounds) {
+ // @method setMaxBounds(bounds: Bounds): this
+ // Restricts the map view to the given bounds (see the [maxBounds](#map-maxbounds) option).
+ setMaxBounds: function (bounds) {
+ bounds = toLatLngBounds(bounds);
- if (!bounds) { return center; }
+ if (!bounds.isValid()) {
+ this.options.maxBounds = null;
+ return this.off('moveend', this._panInsideMaxBounds);
+ } else if (this.options.maxBounds) {
+ this.off('moveend', this._panInsideMaxBounds);
+ }
- var centerPoint = this.project(center, zoom),
- viewHalf = this.getSize().divideBy(2),
- viewBounds = new L.Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)),
- offset = this._getBoundsOffset(viewBounds, bounds, zoom);
+ this.options.maxBounds = bounds;
- // If offset is less than a pixel, ignore.
- // This prevents unstable projections from getting into
- // an infinite loop of tiny offsets.
- if (offset.round().equals([0, 0])) {
- return center;
+ if (this._loaded) {
+ this._panInsideMaxBounds();
}
- return this.unproject(centerPoint.add(offset), zoom);
+ return this.on('moveend', this._panInsideMaxBounds);
},
- // adjust offset for view to get inside bounds
- _limitOffset: function (offset, bounds) {
- if (!bounds) { return offset; }
+ // @method setMinZoom(zoom: Number): this
+ // Sets the lower limit for the available zoom levels (see the [minZoom](#map-minzoom) option).
+ setMinZoom: function (zoom) {
+ var oldZoom = this.options.minZoom;
+ this.options.minZoom = zoom;
- var viewBounds = this.getPixelBounds(),
- newBounds = new L.Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset));
+ if (this._loaded && oldZoom !== zoom) {
+ this.fire('zoomlevelschange');
+
+ if (this.getZoom() < this.options.minZoom) {
+ return this.setZoom(zoom);
+ }
+ }
- return offset.add(this._getBoundsOffset(newBounds, bounds));
+ return this;
},
- // returns offset needed for pxBounds to get inside maxBounds at a specified zoom
- _getBoundsOffset: function (pxBounds, maxBounds, zoom) {
- var projectedMaxBounds = L.bounds(
- this.project(maxBounds.getNorthEast(), zoom),
- this.project(maxBounds.getSouthWest(), zoom)
- ),
- minOffset = projectedMaxBounds.min.subtract(pxBounds.min),
- maxOffset = projectedMaxBounds.max.subtract(pxBounds.max),
+ // @method setMaxZoom(zoom: Number): this
+ // Sets the upper limit for the available zoom levels (see the [maxZoom](#map-maxzoom) option).
+ setMaxZoom: function (zoom) {
+ var oldZoom = this.options.maxZoom;
+ this.options.maxZoom = zoom;
- dx = this._rebound(minOffset.x, -maxOffset.x),
- dy = this._rebound(minOffset.y, -maxOffset.y);
+ if (this._loaded && oldZoom !== zoom) {
+ this.fire('zoomlevelschange');
- return new L.Point(dx, dy);
- },
+ if (this.getZoom() > this.options.maxZoom) {
+ return this.setZoom(zoom);
+ }
+ }
- _rebound: function (left, right) {
- return left + right > 0 ?
- Math.round(left - right) / 2 :
- Math.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right));
+ return this;
},
- _limitZoom: function (zoom) {
- var min = this.getMinZoom(),
- max = this.getMaxZoom(),
- snap = L.Browser.any3d ? this.options.zoomSnap : 1;
- if (snap) {
- zoom = Math.round(zoom / snap) * snap;
+ // @method panInsideBounds(bounds: LatLngBounds, options?: Pan options): this
+ // Pans the map to the closest view that would lie inside the given bounds (if it's not already), controlling the animation using the options specific, if any.
+ panInsideBounds: function (bounds, options) {
+ this._enforcingBounds = true;
+ var center = this.getCenter(),
+ newCenter = this._limitCenter(center, this._zoom, toLatLngBounds(bounds));
+
+ if (!center.equals(newCenter)) {
+ this.panTo(newCenter, options);
}
- return Math.max(min, Math.min(max, zoom));
- },
- _onPanTransitionStep: function () {
- this.fire('move');
+ this._enforcingBounds = false;
+ return this;
},
- _onPanTransitionEnd: function () {
- L.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim');
- this.fire('moveend');
+ // @method panInside(latlng: LatLng, options?: options): this
+ // Pans the map the minimum amount to make the `latlng` visible. Use
+ // `padding`, `paddingTopLeft` and `paddingTopRight` options to fit
+ // the display to more restricted bounds, like [`fitBounds`](#map-fitbounds).
+ // If `latlng` is already within the (optionally padded) display bounds,
+ // the map will not be panned.
+ panInside: function (latlng, options) {
+ options = options || {};
+
+ var paddingTL = toPoint(options.paddingTopLeft || options.padding || [0, 0]),
+ paddingBR = toPoint(options.paddingBottomRight || options.padding || [0, 0]),
+ center = this.getCenter(),
+ pixelCenter = this.project(center),
+ pixelPoint = this.project(latlng),
+ pixelBounds = this.getPixelBounds(),
+ halfPixelBounds = pixelBounds.getSize().divideBy(2),
+ paddedBounds = toBounds([pixelBounds.min.add(paddingTL), pixelBounds.max.subtract(paddingBR)]);
+
+ if (!paddedBounds.contains(pixelPoint)) {
+ this._enforcingBounds = true;
+ var diff = pixelCenter.subtract(pixelPoint),
+ newCenter = toPoint(pixelPoint.x + diff.x, pixelPoint.y + diff.y);
+
+ if (pixelPoint.x < paddedBounds.min.x || pixelPoint.x > paddedBounds.max.x) {
+ newCenter.x = pixelCenter.x - diff.x;
+ if (diff.x > 0) {
+ newCenter.x += halfPixelBounds.x - paddingTL.x;
+ } else {
+ newCenter.x -= halfPixelBounds.x - paddingBR.x;
+ }
+ }
+ if (pixelPoint.y < paddedBounds.min.y || pixelPoint.y > paddedBounds.max.y) {
+ newCenter.y = pixelCenter.y - diff.y;
+ if (diff.y > 0) {
+ newCenter.y += halfPixelBounds.y - paddingTL.y;
+ } else {
+ newCenter.y -= halfPixelBounds.y - paddingBR.y;
+ }
+ }
+ this.panTo(this.unproject(newCenter), options);
+ this._enforcingBounds = false;
+ }
+ return this;
},
- _tryAnimatedPan: function (center, options) {
- // difference between the new and current centers in pixels
- var offset = this._getCenterOffset(center)._floor();
+ // @method invalidateSize(options: Zoom/pan options): this
+ // Checks if the map container size changed and updates the map if so —
+ // call it after you've changed the map size dynamically, also animating
+ // pan by default. If `options.pan` is `false`, panning will not occur.
+ // If `options.debounceMoveend` is `true`, it will delay `moveend` event so
+ // that it doesn't happen often even if the method is called many
+ // times in a row.
- // don't animate too far unless animate: true specified in options
- if ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; }
+ // @alternative
+ // @method invalidateSize(animate: Boolean): this
+ // Checks if the map container size changed and updates the map if so —
+ // call it after you've changed the map size dynamically, also animating
+ // pan by default.
+ invalidateSize: function (options) {
+ if (!this._loaded) { return this; }
- this.panBy(offset, options);
+ options = extend({
+ animate: false,
+ pan: true
+ }, options === true ? {animate: true} : options);
- return true;
- },
+ var oldSize = this.getSize();
+ this._sizeChanged = true;
+ this._lastCenter = null;
- _createAnimProxy: function () {
+ var newSize = this.getSize(),
+ oldCenter = oldSize.divideBy(2).round(),
+ newCenter = newSize.divideBy(2).round(),
+ offset = oldCenter.subtract(newCenter);
- var proxy = this._proxy = L.DomUtil.create('div', 'leaflet-proxy leaflet-zoom-animated');
- this._panes.mapPane.appendChild(proxy);
+ if (!offset.x && !offset.y) { return this; }
- this.on('zoomanim', function (e) {
- var prop = L.DomUtil.TRANSFORM,
- transform = proxy.style[prop];
+ if (options.animate && options.pan) {
+ this.panBy(offset);
+
+ } else {
+ if (options.pan) {
+ this._rawPanBy(offset);
+ }
- L.DomUtil.setTransform(proxy, this.project(e.center, e.zoom), this.getZoomScale(e.zoom, 1));
+ this.fire('move');
- // workaround for case when transform is the same and so transitionend event is not fired
- if (transform === proxy.style[prop] && this._animatingZoom) {
- this._onZoomTransitionEnd();
+ if (options.debounceMoveend) {
+ clearTimeout(this._sizeTimer);
+ this._sizeTimer = setTimeout(bind(this.fire, this, 'moveend'), 200);
+ } else {
+ this.fire('moveend');
}
- }, this);
+ }
- this.on('load moveend', function () {
- var c = this.getCenter(),
- z = this.getZoom();
- L.DomUtil.setTransform(proxy, this.project(c, z), this.getZoomScale(z, 1));
- }, this);
+ // @section Map state change events
+ // @event resize: ResizeEvent
+ // Fired when the map is resized.
+ return this.fire('resize', {
+ oldSize: oldSize,
+ newSize: newSize
+ });
},
- _catchTransitionEnd: function (e) {
- if (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) {
- this._onZoomTransitionEnd();
+ // @section Methods for modifying map state
+ // @method stop(): this
+ // Stops the currently running `panTo` or `flyTo` animation, if any.
+ stop: function () {
+ this.setZoom(this._limitZoom(this._zoom));
+ if (!this.options.zoomSnap) {
+ this.fire('viewreset');
}
+ return this._stop();
},
- _nothingToAnimate: function () {
- return !this._container.getElementsByClassName('leaflet-zoom-animated').length;
- },
+ // @section Geolocation methods
+ // @method locate(options?: Locate options): this
+ // Tries to locate the user using the Geolocation API, firing a [`locationfound`](#map-locationfound)
+ // event with location data on success or a [`locationerror`](#map-locationerror) event on failure,
+ // and optionally sets the map view to the user's location with respect to
+ // detection accuracy (or to the world view if geolocation failed).
+ // Note that, if your page doesn't use HTTPS, this method will fail in
+ // modern browsers ([Chrome 50 and newer](https://sites.google.com/a/chromium.org/dev/Home/chromium-security/deprecating-powerful-features-on-insecure-origins))
+ // See `Locate options` for more details.
+ locate: function (options) {
- _tryAnimatedZoom: function (center, zoom, options) {
+ options = this._locateOptions = extend({
+ timeout: 10000,
+ watch: false
+ // setView: false
+ // maxZoom: <Number>
+ // maximumAge: 0
+ // enableHighAccuracy: false
+ }, options);
- if (this._animatingZoom) { return true; }
+ if (!('geolocation' in navigator)) {
+ this._handleGeolocationError({
+ code: 0,
+ message: 'Geolocation not supported.'
+ });
+ return this;
+ }
- options = options || {};
+ var onResponse = bind(this._handleGeolocationResponse, this),
+ onError = bind(this._handleGeolocationError, this);
- // don't animate if disabled, not supported or zoom difference is too large
- if (!this._zoomAnimated || options.animate === false || this._nothingToAnimate() ||
- Math.abs(zoom - this._zoom) > this.options.zoomAnimationThreshold) { return false; }
+ if (options.watch) {
+ this._locationWatchId =
+ navigator.geolocation.watchPosition(onResponse, onError, options);
+ } else {
+ navigator.geolocation.getCurrentPosition(onResponse, onError, options);
+ }
+ return this;
+ },
- // offset is the pixel coords of the zoom origin relative to the current center
- var scale = this.getZoomScale(zoom),
- offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale);
+ // @method stopLocate(): this
+ // Stops watching location previously initiated by `map.locate({watch: true})`
+ // and aborts resetting the map view if map.locate was called with
+ // `{setView: true}`.
+ stopLocate: function () {
+ if (navigator.geolocation && navigator.geolocation.clearWatch) {
+ navigator.geolocation.clearWatch(this._locationWatchId);
+ }
+ if (this._locateOptions) {
+ this._locateOptions.setView = false;
+ }
+ return this;
+ },
- // don't animate if the zoom origin isn't within one screen from the current center, unless forced
- if (options.animate !== true && !this.getSize().contains(offset)) { return false; }
+ _handleGeolocationError: function (error) {
+ var c = error.code,
+ message = error.message ||
+ (c === 1 ? 'permission denied' :
+ (c === 2 ? 'position unavailable' : 'timeout'));
- L.Util.requestAnimFrame(function () {
- this
- ._moveStart(true)
- ._animateZoom(center, zoom, true);
- }, this);
+ if (this._locateOptions.setView && !this._loaded) {
+ this.fitWorld();
+ }
- return true;
+ // @section Location events
+ // @event locationerror: ErrorEvent
+ // Fired when geolocation (using the [`locate`](#map-locate) method) failed.
+ this.fire('locationerror', {
+ code: c,
+ message: 'Geolocation error: ' + message + '.'
+ });
},
- _animateZoom: function (center, zoom, startAnim, noUpdate) {
- if (startAnim) {
- this._animatingZoom = true;
-
- // remember what center/zoom to set after animation
- this._animateToCenter = center;
- this._animateToZoom = zoom;
+ _handleGeolocationResponse: function (pos) {
+ var lat = pos.coords.latitude,
+ lng = pos.coords.longitude,
+ latlng = new LatLng(lat, lng),
+ bounds = latlng.toBounds(pos.coords.accuracy * 2),
+ options = this._locateOptions;
- L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim');
+ if (options.setView) {
+ var zoom = this.getBoundsZoom(bounds);
+ this.setView(latlng, options.maxZoom ? Math.min(zoom, options.maxZoom) : zoom);
}
- // @event zoomanim: ZoomAnimEvent
- // Fired on every frame of a zoom animation
- this.fire('zoomanim', {
- center: center,
- zoom: zoom,
- noUpdate: noUpdate
- });
+ var data = {
+ latlng: latlng,
+ bounds: bounds,
+ timestamp: pos.timestamp
+ };
- // Work around webkit not firing 'transitionend', see https://github.com/Leaflet/Leaflet/issues/3689, 2693
- setTimeout(L.bind(this._onZoomTransitionEnd, this), 250);
+ for (var i in pos.coords) {
+ if (typeof pos.coords[i] === 'number') {
+ data[i] = pos.coords[i];
+ }
+ }
+
+ // @event locationfound: LocationEvent
+ // Fired when geolocation (using the [`locate`](#map-locate) method)
+ // went successfully.
+ this.fire('locationfound', data);
},
- _onZoomTransitionEnd: function () {
- if (!this._animatingZoom) { return; }
+ // TODO Appropriate docs section?
+ // @section Other Methods
+ // @method addHandler(name: String, HandlerClass: Function): this
+ // Adds a new `Handler` to the map, given its name and constructor function.
+ addHandler: function (name, HandlerClass) {
+ if (!HandlerClass) { return this; }
- L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim');
+ var handler = this[name] = new HandlerClass(this);
- this._animatingZoom = false;
+ this._handlers.push(handler);
+
+ if (this.options[name]) {
+ handler.enable();
+ }
+
+ return this;
+ },
- this._move(this._animateToCenter, this._animateToZoom);
+ // @method remove(): this
+ // Destroys the map and clears all related event listeners.
+ remove: function () {
- // This anim frame should prevent an obscure iOS webkit tile loading race condition.
- L.Util.requestAnimFrame(function () {
- this._moveEnd(true);
- }, this);
- }
-});
+ this._initEvents(true);
-// @section
+ if (this._containerId !== this._container._leaflet_id) {
+ throw new Error('Map container is being reused by another instance');
+ }
-// @factory L.map(id: String, options?: Map options)
-// Instantiates a map object given the DOM ID of a `<div>` element
-// and optionally an object literal with `Map options`.
-//
-// @alternative
-// @factory L.map(el: HTMLElement, options?: Map options)
-// Instantiates a map object given an instance of a `<div>` HTML element
-// and optionally an object literal with `Map options`.
-L.map = function (id, options) {
- return new L.Map(id, options);
-};
+ try {
+ // throws error in IE6-8
+ delete this._container._leaflet_id;
+ delete this._containerId;
+ } catch (e) {
+ /*eslint-disable */
+ this._container._leaflet_id = undefined;
+ /* eslint-enable */
+ this._containerId = undefined;
+ }
+ if (this._locationWatchId !== undefined) {
+ this.stopLocate();
+ }
+ this._stop();
+ remove(this._mapPane);
-/*
- * @class Layer
- * @inherits Evented
- * @aka L.Layer
- * @aka ILayer
- *
- * A set of methods from the Layer base class that all Leaflet layers use.
- * Inherits all methods, options and events from `L.Evented`.
- *
- * @example
- *
- * ```js
- * var layer = L.Marker(latlng).addTo(map);
- * layer.addTo(map);
- * layer.remove();
- * ```
- *
- * @event add: Event
- * Fired after the layer is added to a map
- *
- * @event remove: Event
- * Fired after the layer is removed from a map
- */
+ if (this._clearControlPos) {
+ this._clearControlPos();
+ }
+ if (this._resizeRequest) {
+ cancelAnimFrame(this._resizeRequest);
+ this._resizeRequest = null;
+ }
+ this._clearHandlers();
-L.Layer = L.Evented.extend({
+ if (this._loaded) {
+ // @section Map state change events
+ // @event unload: Event
+ // Fired when the map is destroyed with [remove](#map-remove) method.
+ this.fire('unload');
+ }
- // Classes extending `L.Layer` will inherit the following options:
- options: {
- // @option pane: String = 'overlayPane'
- // By default the layer will be added to the map's [overlay pane](#map-overlaypane). Overriding this option will cause the layer to be placed on another pane by default.
- pane: 'overlayPane',
- nonBubblingEvents: [], // Array of events that should not be bubbled to DOM parents (like the map),
+ var i;
+ for (i in this._layers) {
+ this._layers[i].remove();
+ }
+ for (i in this._panes) {
+ remove(this._panes[i]);
+ }
- // @option attribution: String = null
- // String to be shown in the attribution control, describes the layer data, e.g. "© Mapbox".
- attribution: null
- },
+ this._layers = [];
+ this._panes = [];
+ delete this._mapPane;
+ delete this._renderer;
- /* @section
- * Classes extending `L.Layer` will inherit the following methods:
- *
- * @method addTo(map: Map): this
- * Adds the layer to the given map
- */
- addTo: function (map) {
- map.addLayer(this);
return this;
},
- // @method remove: this
- // Removes the layer from the map it is currently active on.
- remove: function () {
- return this.removeFrom(this._map || this._mapToAdd);
- },
+ // @section Other Methods
+ // @method createPane(name: String, container?: HTMLElement): HTMLElement
+ // Creates a new [map pane](#map-pane) with the given name if it doesn't exist already,
+ // then returns it. The pane is created as a child of `container`, or
+ // as a child of the main map pane if not set.
+ createPane: function (name, container) {
+ var className = 'leaflet-pane' + (name ? ' leaflet-' + name.replace('Pane', '') + '-pane' : ''),
+ pane = create$1('div', className, container || this._mapPane);
- // @method removeFrom(map: Map): this
- // Removes the layer from the given map
- removeFrom: function (obj) {
- if (obj) {
- obj.removeLayer(this);
+ if (name) {
+ this._panes[name] = pane;
}
- return this;
+ return pane;
},
- // @method getPane(name? : String): HTMLElement
- // Returns the `HTMLElement` representing the named pane on the map. If `name` is omitted, returns the pane for this layer.
- getPane: function (name) {
- return this._map.getPane(name ? (this.options[name] || name) : this.options.pane);
- },
+ // @section Methods for Getting Map State
- addInteractiveTarget: function (targetEl) {
- this._map._targets[L.stamp(targetEl)] = this;
- return this;
+ // @method getCenter(): LatLng
+ // Returns the geographical center of the map view
+ getCenter: function () {
+ this._checkIfLoaded();
+
+ if (this._lastCenter && !this._moved()) {
+ return this._lastCenter;
+ }
+ return this.layerPointToLatLng(this._getCenterLayerPoint());
},
- removeInteractiveTarget: function (targetEl) {
- delete this._map._targets[L.stamp(targetEl)];
- return this;
+ // @method getZoom(): Number
+ // Returns the current zoom level of the map view
+ getZoom: function () {
+ return this._zoom;
},
- // @method getAttribution: String
- // Used by the `attribution control`, returns the [attribution option](#gridlayer-attribution).
- getAttribution: function () {
- return this.options.attribution;
+ // @method getBounds(): LatLngBounds
+ // Returns the geographical bounds visible in the current map view
+ getBounds: function () {
+ var bounds = this.getPixelBounds(),
+ sw = this.unproject(bounds.getBottomLeft()),
+ ne = this.unproject(bounds.getTopRight());
+
+ return new LatLngBounds(sw, ne);
},
- _layerAdd: function (e) {
- var map = e.target;
+ // @method getMinZoom(): Number
+ // Returns the minimum zoom level of the map (if set in the `minZoom` option of the map or of any layers), or `0` by default.
+ getMinZoom: function () {
+ return this.options.minZoom === undefined ? this._layersMinZoom || 0 : this.options.minZoom;
+ },
- // check in case layer gets added and then removed before the map is ready
- if (!map.hasLayer(this)) { return; }
+ // @method getMaxZoom(): Number
+ // Returns the maximum zoom level of the map (if set in the `maxZoom` option of the map or of any layers).
+ getMaxZoom: function () {
+ return this.options.maxZoom === undefined ?
+ (this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) :
+ this.options.maxZoom;
+ },
- this._map = map;
- this._zoomAnimated = map._zoomAnimated;
+ // @method getBoundsZoom(bounds: LatLngBounds, inside?: Boolean, padding?: Point): Number
+ // Returns the maximum zoom level on which the given bounds fit to the map
+ // view in its entirety. If `inside` (optional) is set to `true`, the method
+ // instead returns the minimum zoom level on which the map view fits into
+ // the given bounds in its entirety.
+ getBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number
+ bounds = toLatLngBounds(bounds);
+ padding = toPoint(padding || [0, 0]);
- if (this.getEvents) {
- var events = this.getEvents();
- map.on(events, this);
- this.once('remove', function () {
- map.off(events, this);
- }, this);
- }
+ var zoom = this.getZoom() || 0,
+ min = this.getMinZoom(),
+ max = this.getMaxZoom(),
+ nw = bounds.getNorthWest(),
+ se = bounds.getSouthEast(),
+ size = this.getSize().subtract(padding),
+ boundsSize = toBounds(this.project(se, zoom), this.project(nw, zoom)).getSize(),
+ snap = any3d ? this.options.zoomSnap : 1,
+ scalex = size.x / boundsSize.x,
+ scaley = size.y / boundsSize.y,
+ scale = inside ? Math.max(scalex, scaley) : Math.min(scalex, scaley);
- this.onAdd(map);
+ zoom = this.getScaleZoom(scale, zoom);
- if (this.getAttribution && map.attributionControl) {
- map.attributionControl.addAttribution(this.getAttribution());
+ if (snap) {
+ zoom = Math.round(zoom / (snap / 100)) * (snap / 100); // don't jump if within 1% of a snap level
+ zoom = inside ? Math.ceil(zoom / snap) * snap : Math.floor(zoom / snap) * snap;
}
- this.fire('add');
- map.fire('layeradd', {layer: this});
- }
-});
+ return Math.max(min, Math.min(max, zoom));
+ },
-/* @section Extension methods
- * @uninheritable
- *
- * Every layer should extend from `L.Layer` and (re-)implement the following methods.
- *
- * @method onAdd(map: Map): this
- * Should contain code that creates DOM elements for the layer, adds them to `map panes` where they should belong and puts listeners on relevant map events. Called on [`map.addLayer(layer)`](#map-addlayer).
- *
- * @method onRemove(map: Map): this
- * Should contain all clean up code that removes the layer's elements from the DOM and removes listeners previously added in [`onAdd`](#layer-onadd). Called on [`map.removeLayer(layer)`](#map-removelayer).
- *
- * @method getEvents(): Object
- * This optional method should return an object like `{ viewreset: this._reset }` for [`addEventListener`](#evented-addeventlistener). The event handlers in this object will be automatically added and removed from the map with your layer.
- *
- * @method getAttribution(): String
- * This optional method should return a string containing HTML to be shown on the `Attribution control` whenever the layer is visible.
- *
- * @method beforeAdd(map: Map): this
- * Optional method. Called on [`map.addLayer(layer)`](#map-addlayer), before the layer is added to the map, before events are initialized, without waiting until the map is in a usable state. Use for early initialization only.
- */
+ // @method getSize(): Point
+ // Returns the current size of the map container (in pixels).
+ getSize: function () {
+ if (!this._size || this._sizeChanged) {
+ this._size = new Point(
+ this._container.clientWidth || 0,
+ this._container.clientHeight || 0);
+ this._sizeChanged = false;
+ }
+ return this._size.clone();
+ },
-/* @namespace Map
- * @section Layer events
- *
- * @event layeradd: LayerEvent
- * Fired when a new layer is added to the map.
- *
- * @event layerremove: LayerEvent
- * Fired when some layer is removed from the map
- *
- * @section Methods for Layers and Controls
- */
-L.Map.include({
- // @method addLayer(layer: Layer): this
- // Adds the given layer to the map
- addLayer: function (layer) {
- var id = L.stamp(layer);
- if (this._layers[id]) { return this; }
- this._layers[id] = layer;
+ // @method getPixelBounds(): Bounds
+ // Returns the bounds of the current map view in projected pixel
+ // coordinates (sometimes useful in layer and overlay implementations).
+ getPixelBounds: function (center, zoom) {
+ var topLeftPoint = this._getTopLeftPoint(center, zoom);
+ return new Bounds(topLeftPoint, topLeftPoint.add(this.getSize()));
+ },
- layer._mapToAdd = this;
+ // TODO: Check semantics - isn't the pixel origin the 0,0 coord relative to
+ // the map pane? "left point of the map layer" can be confusing, specially
+ // since there can be negative offsets.
+ // @method getPixelOrigin(): Point
+ // Returns the projected pixel coordinates of the top left point of
+ // the map layer (useful in custom layer and overlay implementations).
+ getPixelOrigin: function () {
+ this._checkIfLoaded();
+ return this._pixelOrigin;
+ },
- if (layer.beforeAdd) {
- layer.beforeAdd(this);
- }
+ // @method getPixelWorldBounds(zoom?: Number): Bounds
+ // Returns the world's bounds in pixel coordinates for zoom level `zoom`.
+ // If `zoom` is omitted, the map's current zoom level is used.
+ getPixelWorldBounds: function (zoom) {
+ return this.options.crs.getProjectedBounds(zoom === undefined ? this.getZoom() : zoom);
+ },
- this.whenReady(layer._layerAdd, layer);
+ // @section Other Methods
- return this;
+ // @method getPane(pane: String|HTMLElement): HTMLElement
+ // Returns a [map pane](#map-pane), given its name or its HTML element (its identity).
+ getPane: function (pane) {
+ return typeof pane === 'string' ? this._panes[pane] : pane;
},
- // @method removeLayer(layer: Layer): this
- // Removes the given layer from the map.
- removeLayer: function (layer) {
- var id = L.stamp(layer);
-
- if (!this._layers[id]) { return this; }
+ // @method getPanes(): Object
+ // Returns a plain object containing the names of all [panes](#map-pane) as keys and
+ // the panes as values.
+ getPanes: function () {
+ return this._panes;
+ },
- if (this._loaded) {
- layer.onRemove(this);
- }
+ // @method getContainer: HTMLElement
+ // Returns the HTML element that contains the map.
+ getContainer: function () {
+ return this._container;
+ },
- if (layer.getAttribution && this.attributionControl) {
- this.attributionControl.removeAttribution(layer.getAttribution());
- }
- delete this._layers[id];
+ // @section Conversion Methods
- if (this._loaded) {
- this.fire('layerremove', {layer: layer});
- layer.fire('remove');
- }
+ // @method getZoomScale(toZoom: Number, fromZoom: Number): Number
+ // Returns the scale factor to be applied to a map transition from zoom level
+ // `fromZoom` to `toZoom`. Used internally to help with zoom animations.
+ getZoomScale: function (toZoom, fromZoom) {
+ // TODO replace with universal implementation after refactoring projections
+ var crs = this.options.crs;
+ fromZoom = fromZoom === undefined ? this._zoom : fromZoom;
+ return crs.scale(toZoom) / crs.scale(fromZoom);
+ },
- layer._map = layer._mapToAdd = null;
+ // @method getScaleZoom(scale: Number, fromZoom: Number): Number
+ // Returns the zoom level that the map would end up at, if it is at `fromZoom`
+ // level and everything is scaled by a factor of `scale`. Inverse of
+ // [`getZoomScale`](#map-getZoomScale).
+ getScaleZoom: function (scale, fromZoom) {
+ var crs = this.options.crs;
+ fromZoom = fromZoom === undefined ? this._zoom : fromZoom;
+ var zoom = crs.zoom(scale * crs.scale(fromZoom));
+ return isNaN(zoom) ? Infinity : zoom;
+ },
- return this;
+ // @method project(latlng: LatLng, zoom: Number): Point
+ // Projects a geographical coordinate `LatLng` according to the projection
+ // of the map's CRS, then scales it according to `zoom` and the CRS's
+ // `Transformation`. The result is pixel coordinate relative to
+ // the CRS origin.
+ project: function (latlng, zoom) {
+ zoom = zoom === undefined ? this._zoom : zoom;
+ return this.options.crs.latLngToPoint(toLatLng(latlng), zoom);
},
- // @method hasLayer(layer: Layer): Boolean
- // Returns `true` if the given layer is currently added to the map
- hasLayer: function (layer) {
- return !!layer && (L.stamp(layer) in this._layers);
+ // @method unproject(point: Point, zoom: Number): LatLng
+ // Inverse of [`project`](#map-project).
+ unproject: function (point, zoom) {
+ zoom = zoom === undefined ? this._zoom : zoom;
+ return this.options.crs.pointToLatLng(toPoint(point), zoom);
},
- /* @method eachLayer(fn: Function, context?: Object): this
- * Iterates over the layers of the map, optionally specifying context of the iterator function.
- * ```
- * map.eachLayer(function(layer){
- * layer.bindPopup('Hello');
- * });
- * ```
- */
- eachLayer: function (method, context) {
- for (var i in this._layers) {
- method.call(context, this._layers[i]);
- }
- return this;
+ // @method layerPointToLatLng(point: Point): LatLng
+ // Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin),
+ // returns the corresponding geographical coordinate (for the current zoom level).
+ layerPointToLatLng: function (point) {
+ var projectedPoint = toPoint(point).add(this.getPixelOrigin());
+ return this.unproject(projectedPoint);
},
- _addLayers: function (layers) {
- layers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : [];
+ // @method latLngToLayerPoint(latlng: LatLng): Point
+ // Given a geographical coordinate, returns the corresponding pixel coordinate
+ // relative to the [origin pixel](#map-getpixelorigin).
+ latLngToLayerPoint: function (latlng) {
+ var projectedPoint = this.project(toLatLng(latlng))._round();
+ return projectedPoint._subtract(this.getPixelOrigin());
+ },
- for (var i = 0, len = layers.length; i < len; i++) {
- this.addLayer(layers[i]);
- }
+ // @method wrapLatLng(latlng: LatLng): LatLng
+ // Returns a `LatLng` where `lat` and `lng` has been wrapped according to the
+ // map's CRS's `wrapLat` and `wrapLng` properties, if they are outside the
+ // CRS's bounds.
+ // By default this means longitude is wrapped around the dateline so its
+ // value is between -180 and +180 degrees.
+ wrapLatLng: function (latlng) {
+ return this.options.crs.wrapLatLng(toLatLng(latlng));
},
- _addZoomLimit: function (layer) {
- if (isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom)) {
- this._zoomBoundLayers[L.stamp(layer)] = layer;
- this._updateZoomLevels();
- }
+ // @method wrapLatLngBounds(bounds: LatLngBounds): LatLngBounds
+ // Returns a `LatLngBounds` with the same size as the given one, ensuring that
+ // its center is within the CRS's bounds.
+ // By default this means the center longitude is wrapped around the dateline so its
+ // value is between -180 and +180 degrees, and the majority of the bounds
+ // overlaps the CRS's bounds.
+ wrapLatLngBounds: function (latlng) {
+ return this.options.crs.wrapLatLngBounds(toLatLngBounds(latlng));
},
- _removeZoomLimit: function (layer) {
- var id = L.stamp(layer);
+ // @method distance(latlng1: LatLng, latlng2: LatLng): Number
+ // Returns the distance between two geographical coordinates according to
+ // the map's CRS. By default this measures distance in meters.
+ distance: function (latlng1, latlng2) {
+ return this.options.crs.distance(toLatLng(latlng1), toLatLng(latlng2));
+ },
- if (this._zoomBoundLayers[id]) {
- delete this._zoomBoundLayers[id];
- this._updateZoomLevels();
- }
+ // @method containerPointToLayerPoint(point: Point): Point
+ // Given a pixel coordinate relative to the map container, returns the corresponding
+ // pixel coordinate relative to the [origin pixel](#map-getpixelorigin).
+ containerPointToLayerPoint: function (point) { // (Point)
+ return toPoint(point).subtract(this._getMapPanePos());
},
- _updateZoomLevels: function () {
- var minZoom = Infinity,
- maxZoom = -Infinity,
- oldZoomSpan = this._getZoomSpan();
+ // @method layerPointToContainerPoint(point: Point): Point
+ // Given a pixel coordinate relative to the [origin pixel](#map-getpixelorigin),
+ // returns the corresponding pixel coordinate relative to the map container.
+ layerPointToContainerPoint: function (point) { // (Point)
+ return toPoint(point).add(this._getMapPanePos());
+ },
- for (var i in this._zoomBoundLayers) {
- var options = this._zoomBoundLayers[i].options;
+ // @method containerPointToLatLng(point: Point): LatLng
+ // Given a pixel coordinate relative to the map container, returns
+ // the corresponding geographical coordinate (for the current zoom level).
+ containerPointToLatLng: function (point) {
+ var layerPoint = this.containerPointToLayerPoint(toPoint(point));
+ return this.layerPointToLatLng(layerPoint);
+ },
- minZoom = options.minZoom === undefined ? minZoom : Math.min(minZoom, options.minZoom);
- maxZoom = options.maxZoom === undefined ? maxZoom : Math.max(maxZoom, options.maxZoom);
- }
+ // @method latLngToContainerPoint(latlng: LatLng): Point
+ // Given a geographical coordinate, returns the corresponding pixel coordinate
+ // relative to the map container.
+ latLngToContainerPoint: function (latlng) {
+ return this.layerPointToContainerPoint(this.latLngToLayerPoint(toLatLng(latlng)));
+ },
- this._layersMaxZoom = maxZoom === -Infinity ? undefined : maxZoom;
- this._layersMinZoom = minZoom === Infinity ? undefined : minZoom;
+ // @method mouseEventToContainerPoint(ev: MouseEvent): Point
+ // Given a MouseEvent object, returns the pixel coordinate relative to the
+ // map container where the event took place.
+ mouseEventToContainerPoint: function (e) {
+ return getMousePosition(e, this._container);
+ },
- // @section Map state change events
- // @event zoomlevelschange: Event
- // Fired when the number of zoomlevels on the map is changed due
- // to adding or removing a layer.
- if (oldZoomSpan !== this._getZoomSpan()) {
- this.fire('zoomlevelschange');
- }
+ // @method mouseEventToLayerPoint(ev: MouseEvent): Point
+ // Given a MouseEvent object, returns the pixel coordinate relative to
+ // the [origin pixel](#map-getpixelorigin) where the event took place.
+ mouseEventToLayerPoint: function (e) {
+ return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e));
+ },
- if (this.options.maxZoom === undefined && this._layersMaxZoom && this.getZoom() > this._layersMaxZoom) {
- this.setZoom(this._layersMaxZoom);
- }
- if (this.options.minZoom === undefined && this._layersMinZoom && this.getZoom() < this._layersMinZoom) {
- this.setZoom(this._layersMinZoom);
- }
- }
-});
+ // @method mouseEventToLatLng(ev: MouseEvent): LatLng
+ // Given a MouseEvent object, returns geographical coordinate where the
+ // event took place.
+ mouseEventToLatLng: function (e) { // (MouseEvent)
+ return this.layerPointToLatLng(this.mouseEventToLayerPoint(e));
+ },
+ // map initialization methods
-/*
- * @namespace DomEvent
- * Utility functions to work with the [DOM events](https://developer.mozilla.org/docs/Web/API/Event), used by Leaflet internally.
- */
+ _initContainer: function (id) {
+ var container = this._container = get(id);
-// Inspired by John Resig, Dean Edwards and YUI addEvent implementations.
+ if (!container) {
+ throw new Error('Map container not found.');
+ } else if (container._leaflet_id) {
+ throw new Error('Map container is already initialized.');
+ }
+ on(container, 'scroll', this._onScroll, this);
+ this._containerId = stamp(container);
+ },
+ _initLayout: function () {
+ var container = this._container;
-var eventsKey = '_leaflet_events';
+ this._fadeAnimated = this.options.fadeAnimation && any3d;
-L.DomEvent = {
+ addClass(container, 'leaflet-container' +
+ (touch ? ' leaflet-touch' : '') +
+ (retina ? ' leaflet-retina' : '') +
+ (ielt9 ? ' leaflet-oldie' : '') +
+ (safari ? ' leaflet-safari' : '') +
+ (this._fadeAnimated ? ' leaflet-fade-anim' : ''));
- // @function on(el: HTMLElement, types: String, fn: Function, context?: Object): this
- // Adds a listener function (`fn`) to a particular DOM event type of the
- // element `el`. You can optionally specify the context of the listener
- // (object the `this` keyword will point to). You can also pass several
- // space-separated types (e.g. `'click dblclick'`).
+ var position = getStyle(container, 'position');
- // @alternative
- // @function on(el: HTMLElement, eventMap: Object, context?: Object): this
- // Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`
- on: function (obj, types, fn, context) {
+ if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') {
+ container.style.position = 'relative';
+ }
- if (typeof types === 'object') {
- for (var type in types) {
- this._on(obj, type, types[type], fn);
- }
- } else {
- types = L.Util.splitWords(types);
+ this._initPanes();
- for (var i = 0, len = types.length; i < len; i++) {
- this._on(obj, types[i], fn, context);
- }
+ if (this._initControlPos) {
+ this._initControlPos();
}
-
- return this;
},
- // @function off(el: HTMLElement, types: String, fn: Function, context?: Object): this
- // Removes a previously added listener function. If no function is specified,
- // it will remove all the listeners of that particular DOM event from the element.
- // Note that if you passed a custom context to on, you must pass the same
- // context to `off` in order to remove the listener.
+ _initPanes: function () {
+ var panes = this._panes = {};
+ this._paneRenderers = {};
- // @alternative
- // @function off(el: HTMLElement, eventMap: Object, context?: Object): this
- // Removes a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`
- off: function (obj, types, fn, context) {
+ // @section
+ //
+ // Panes are DOM elements used to control the ordering of layers on the map. You
+ // can access panes with [`map.getPane`](#map-getpane) or
+ // [`map.getPanes`](#map-getpanes) methods. New panes can be created with the
+ // [`map.createPane`](#map-createpane) method.
+ //
+ // Every map has the following default panes that differ only in zIndex.
+ //
+ // @pane mapPane: HTMLElement = 'auto'
+ // Pane that contains all other map panes
- if (typeof types === 'object') {
- for (var type in types) {
- this._off(obj, type, types[type], fn);
- }
- } else {
- types = L.Util.splitWords(types);
+ this._mapPane = this.createPane('mapPane', this._container);
+ setPosition(this._mapPane, new Point(0, 0));
+
+ // @pane tilePane: HTMLElement = 200
+ // Pane for `GridLayer`s and `TileLayer`s
+ this.createPane('tilePane');
+ // @pane overlayPane: HTMLElement = 400
+ // Pane for vectors (`Path`s, like `Polyline`s and `Polygon`s), `ImageOverlay`s and `VideoOverlay`s
+ this.createPane('shadowPane');
+ // @pane shadowPane: HTMLElement = 500
+ // Pane for overlay shadows (e.g. `Marker` shadows)
+ this.createPane('overlayPane');
+ // @pane markerPane: HTMLElement = 600
+ // Pane for `Icon`s of `Marker`s
+ this.createPane('markerPane');
+ // @pane tooltipPane: HTMLElement = 650
+ // Pane for `Tooltip`s.
+ this.createPane('tooltipPane');
+ // @pane popupPane: HTMLElement = 700
+ // Pane for `Popup`s.
+ this.createPane('popupPane');
- for (var i = 0, len = types.length; i < len; i++) {
- this._off(obj, types[i], fn, context);
- }
+ if (!this.options.markerZoomAnimation) {
+ addClass(panes.markerPane, 'leaflet-zoom-hide');
+ addClass(panes.shadowPane, 'leaflet-zoom-hide');
}
-
- return this;
},
- _on: function (obj, type, fn, context) {
- var id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : '');
-
- if (obj[eventsKey] && obj[eventsKey][id]) { return this; }
-
- var handler = function (e) {
- return fn.call(context || obj, e || window.event);
- };
-
- var originalHandler = handler;
- if (L.Browser.pointer && type.indexOf('touch') === 0) {
- this.addPointerListener(obj, type, handler, id);
+ // private methods that modify map state
- } else if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener &&
- !(L.Browser.pointer && L.Browser.chrome)) {
- // Chrome >55 does not need the synthetic dblclicks from addDoubleTapListener
- // See #5180
- this.addDoubleTapListener(obj, handler, id);
+ // @section Map state change events
+ _resetView: function (center, zoom) {
+ setPosition(this._mapPane, new Point(0, 0));
- } else if ('addEventListener' in obj) {
+ var loading = !this._loaded;
+ this._loaded = true;
+ zoom = this._limitZoom(zoom);
- if (type === 'mousewheel') {
- obj.addEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false);
+ this.fire('viewprereset');
- } else if ((type === 'mouseenter') || (type === 'mouseleave')) {
- handler = function (e) {
- e = e || window.event;
- if (L.DomEvent._isExternalTarget(obj, e)) {
- originalHandler(e);
- }
- };
- obj.addEventListener(type === 'mouseenter' ? 'mouseover' : 'mouseout', handler, false);
+ var zoomChanged = this._zoom !== zoom;
+ this
+ ._moveStart(zoomChanged, false)
+ ._move(center, zoom)
+ ._moveEnd(zoomChanged);
- } else {
- if (type === 'click' && L.Browser.android) {
- handler = function (e) {
- return L.DomEvent._filterClick(e, originalHandler);
- };
- }
- obj.addEventListener(type, handler, false);
- }
+ // @event viewreset: Event
+ // Fired when the map needs to redraw its content (this usually happens
+ // on map zoom or load). Very useful for creating custom overlays.
+ this.fire('viewreset');
- } else if ('attachEvent' in obj) {
- obj.attachEvent('on' + type, handler);
+ // @event load: Event
+ // Fired when the map is initialized (when its center and zoom are set
+ // for the first time).
+ if (loading) {
+ this.fire('load');
}
+ },
- obj[eventsKey] = obj[eventsKey] || {};
- obj[eventsKey][id] = handler;
-
+ _moveStart: function (zoomChanged, noMoveStart) {
+ // @event zoomstart: Event
+ // Fired when the map zoom is about to change (e.g. before zoom animation).
+ // @event movestart: Event
+ // Fired when the view of the map starts changing (e.g. user starts dragging the map).
+ if (zoomChanged) {
+ this.fire('zoomstart');
+ }
+ if (!noMoveStart) {
+ this.fire('movestart');
+ }
return this;
},
- _off: function (obj, type, fn, context) {
-
- var id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : ''),
- handler = obj[eventsKey] && obj[eventsKey][id];
-
- if (!handler) { return this; }
-
- if (L.Browser.pointer && type.indexOf('touch') === 0) {
- this.removePointerListener(obj, type, id);
-
- } else if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) {
- this.removeDoubleTapListener(obj, id);
+ _move: function (center, zoom, data) {
+ if (zoom === undefined) {
+ zoom = this._zoom;
+ }
+ var zoomChanged = this._zoom !== zoom;
- } else if ('removeEventListener' in obj) {
+ this._zoom = zoom;
+ this._lastCenter = center;
+ this._pixelOrigin = this._getNewPixelOrigin(center);
- if (type === 'mousewheel') {
- obj.removeEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false);
+ // @event zoom: Event
+ // Fired repeatedly during any change in zoom level, including zoom
+ // and fly animations.
+ if (zoomChanged || (data && data.pinch)) { // Always fire 'zoom' if pinching because #3530
+ this.fire('zoom', data);
+ }
- } else {
- obj.removeEventListener(
- type === 'mouseenter' ? 'mouseover' :
- type === 'mouseleave' ? 'mouseout' : type, handler, false);
- }
+ // @event move: Event
+ // Fired repeatedly during any movement of the map, including pan and
+ // fly animations.
+ return this.fire('move', data);
+ },
- } else if ('detachEvent' in obj) {
- obj.detachEvent('on' + type, handler);
+ _moveEnd: function (zoomChanged) {
+ // @event zoomend: Event
+ // Fired when the map has changed, after any animations.
+ if (zoomChanged) {
+ this.fire('zoomend');
}
- obj[eventsKey][id] = null;
-
- return this;
+ // @event moveend: Event
+ // Fired when the center of the map stops changing (e.g. user stopped
+ // dragging the map).
+ return this.fire('moveend');
},
- // @function stopPropagation(ev: DOMEvent): this
- // Stop the given event from propagation to parent elements. Used inside the listener functions:
- // ```js
- // L.DomEvent.on(div, 'click', function (ev) {
- // L.DomEvent.stopPropagation(ev);
- // });
- // ```
- stopPropagation: function (e) {
-
- if (e.stopPropagation) {
- e.stopPropagation();
- } else if (e.originalEvent) { // In case of Leaflet event.
- e.originalEvent._stopped = true;
- } else {
- e.cancelBubble = true;
+ _stop: function () {
+ cancelAnimFrame(this._flyToFrame);
+ if (this._panAnim) {
+ this._panAnim.stop();
}
- L.DomEvent._skipped(e);
-
return this;
},
- // @function disableScrollPropagation(el: HTMLElement): this
- // Adds `stopPropagation` to the element's `'mousewheel'` events (plus browser variants).
- disableScrollPropagation: function (el) {
- return L.DomEvent.on(el, 'mousewheel', L.DomEvent.stopPropagation);
+ _rawPanBy: function (offset) {
+ setPosition(this._mapPane, this._getMapPanePos().subtract(offset));
},
- // @function disableClickPropagation(el: HTMLElement): this
- // Adds `stopPropagation` to the element's `'click'`, `'doubleclick'`,
- // `'mousedown'` and `'touchstart'` events (plus browser variants).
- disableClickPropagation: function (el) {
- var stop = L.DomEvent.stopPropagation;
-
- L.DomEvent.on(el, L.Draggable.START.join(' '), stop);
-
- return L.DomEvent.on(el, {
- click: L.DomEvent._fakeStop,
- dblclick: stop
- });
+ _getZoomSpan: function () {
+ return this.getMaxZoom() - this.getMinZoom();
},
- // @function preventDefault(ev: DOMEvent): this
- // Prevents the default action of the DOM Event `ev` from happening (such as
- // following a link in the href of the a element, or doing a POST request
- // with page reload when a `<form>` is submitted).
- // Use it inside listener functions.
- preventDefault: function (e) {
-
- if (e.preventDefault) {
- e.preventDefault();
- } else {
- e.returnValue = false;
+ _panInsideMaxBounds: function () {
+ if (!this._enforcingBounds) {
+ this.panInsideBounds(this.options.maxBounds);
}
- return this;
},
- // @function stop(ev): this
- // Does `stopPropagation` and `preventDefault` at the same time.
- stop: function (e) {
- return L.DomEvent
- .preventDefault(e)
- .stopPropagation(e);
- },
-
- // @function getMousePosition(ev: DOMEvent, container?: HTMLElement): Point
- // Gets normalized mouse position from a DOM event relative to the
- // `container` or to the whole page if not specified.
- getMousePosition: function (e, container) {
- if (!container) {
- return new L.Point(e.clientX, e.clientY);
+ _checkIfLoaded: function () {
+ if (!this._loaded) {
+ throw new Error('Set map center and zoom first.');
}
+ },
- var rect = container.getBoundingClientRect();
+ // DOM event handling
- return new L.Point(
- e.clientX - rect.left - container.clientLeft,
- e.clientY - rect.top - container.clientTop);
- },
+ // @section Interaction events
+ _initEvents: function (remove$$1) {
+ this._targets = {};
+ this._targets[stamp(this._container)] = this;
- // Chrome on Win scrolls double the pixels as in other platforms (see #4538),
- // and Firefox scrolls device pixels, not CSS pixels
- _wheelPxFactor: (L.Browser.win && L.Browser.chrome) ? 2 :
- L.Browser.gecko ? window.devicePixelRatio :
- 1,
+ var onOff = remove$$1 ? off : on;
- // @function getWheelDelta(ev: DOMEvent): Number
- // Gets normalized wheel delta from a mousewheel DOM event, in vertical
- // pixels scrolled (negative if scrolling down).
- // Events from pointing devices without precise scrolling are mapped to
- // a best guess of 60 pixels.
- getWheelDelta: function (e) {
- return (L.Browser.edge) ? e.wheelDeltaY / 2 : // Don't trust window-geometry-based delta
- (e.deltaY && e.deltaMode === 0) ? -e.deltaY / L.DomEvent._wheelPxFactor : // Pixels
- (e.deltaY && e.deltaMode === 1) ? -e.deltaY * 20 : // Lines
- (e.deltaY && e.deltaMode === 2) ? -e.deltaY * 60 : // Pages
- (e.deltaX || e.deltaZ) ? 0 : // Skip horizontal/depth wheel events
- e.wheelDelta ? (e.wheelDeltaY || e.wheelDelta) / 2 : // Legacy IE pixels
- (e.detail && Math.abs(e.detail) < 32765) ? -e.detail * 20 : // Legacy Moz lines
- e.detail ? e.detail / -32765 * 60 : // Legacy Moz pages
- 0;
- },
+ // @event click: MouseEvent
+ // Fired when the user clicks (or taps) the map.
+ // @event dblclick: MouseEvent
+ // Fired when the user double-clicks (or double-taps) the map.
+ // @event mousedown: MouseEvent
+ // Fired when the user pushes the mouse button on the map.
+ // @event mouseup: MouseEvent
+ // Fired when the user releases the mouse button on the map.
+ // @event mouseover: MouseEvent
+ // Fired when the mouse enters the map.
+ // @event mouseout: MouseEvent
+ // Fired when the mouse leaves the map.
+ // @event mousemove: MouseEvent
+ // Fired while the mouse moves over the map.
+ // @event contextmenu: MouseEvent
+ // Fired when the user pushes the right mouse button on the map, prevents
+ // default browser context menu from showing if there are listeners on
+ // this event. Also fired on mobile when the user holds a single touch
+ // for a second (also called long press).
+ // @event keypress: KeyboardEvent
+ // Fired when the user presses a key from the keyboard that produces a character value while the map is focused.
+ // @event keydown: KeyboardEvent
+ // Fired when the user presses a key from the keyboard while the map is focused. Unlike the `keypress` event,
+ // the `keydown` event is fired for keys that produce a character value and for keys
+ // that do not produce a character value.
+ // @event keyup: KeyboardEvent
+ // Fired when the user releases a key from the keyboard while the map is focused.
+ onOff(this._container, 'click dblclick mousedown mouseup ' +
+ 'mouseover mouseout mousemove contextmenu keypress keydown keyup', this._handleDOMEvent, this);
- _skipEvents: {},
+ if (this.options.trackResize) {
+ onOff(window, 'resize', this._onResize, this);
+ }
- _fakeStop: function (e) {
- // fakes stopPropagation by setting a special event flag, checked/reset with L.DomEvent._skipped(e)
- L.DomEvent._skipEvents[e.type] = true;
+ if (any3d && this.options.transform3DLimit) {
+ (remove$$1 ? this.off : this.on).call(this, 'moveend', this._onMoveEnd);
+ }
},
- _skipped: function (e) {
- var skipped = this._skipEvents[e.type];
- // reset when checking, as it's only used in map container and propagates outside of the map
- this._skipEvents[e.type] = false;
- return skipped;
+ _onResize: function () {
+ cancelAnimFrame(this._resizeRequest);
+ this._resizeRequest = requestAnimFrame(
+ function () { this.invalidateSize({debounceMoveend: true}); }, this);
},
- // check if element really left/entered the event target (for mouseenter/mouseleave)
- _isExternalTarget: function (el, e) {
+ _onScroll: function () {
+ this._container.scrollTop = 0;
+ this._container.scrollLeft = 0;
+ },
- var related = e.relatedTarget;
+ _onMoveEnd: function () {
+ var pos = this._getMapPanePos();
+ if (Math.max(Math.abs(pos.x), Math.abs(pos.y)) >= this.options.transform3DLimit) {
+ // https://bugzilla.mozilla.org/show_bug.cgi?id=1203873 but Webkit also have
+ // a pixel offset on very high values, see: http://jsfiddle.net/dg6r5hhb/
+ this._resetView(this.getCenter(), this.getZoom());
+ }
+ },
- if (!related) { return true; }
+ _findEventTargets: function (e, type) {
+ var targets = [],
+ target,
+ isHover = type === 'mouseout' || type === 'mouseover',
+ src = e.target || e.srcElement,
+ dragging = false;
- try {
- while (related && (related !== el)) {
- related = related.parentNode;
+ while (src) {
+ target = this._targets[stamp(src)];
+ if (target && (type === 'click' || type === 'preclick') && !e._simulated && this._draggableMoved(target)) {
+ // Prevent firing click after you just dragged an object.
+ dragging = true;
+ break;
}
- } catch (err) {
- return false;
+ if (target && target.listens(type, true)) {
+ if (isHover && !isExternalTarget(src, e)) { break; }
+ targets.push(target);
+ if (isHover) { break; }
+ }
+ if (src === this._container) { break; }
+ src = src.parentNode;
}
- return (related !== el);
+ if (!targets.length && !dragging && !isHover && isExternalTarget(src, e)) {
+ targets = [this];
+ }
+ return targets;
},
- // this is a horrible workaround for a bug in Android where a single touch triggers two click events
- _filterClick: function (e, handler) {
- var timeStamp = (e.timeStamp || (e.originalEvent && e.originalEvent.timeStamp)),
- elapsed = L.DomEvent._lastClick && (timeStamp - L.DomEvent._lastClick);
+ _handleDOMEvent: function (e) {
+ if (!this._loaded || skipped(e)) { return; }
- // are they closer together than 500ms yet more than 100ms?
- // Android typically triggers them ~300ms apart while multiple listeners
- // on the same event should be triggered far faster;
- // or check if click is simulated on the element, and if it is, reject any non-simulated events
+ var type = e.type;
- if ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) {
- L.DomEvent.stop(e);
- return;
+ if (type === 'mousedown' || type === 'keypress' || type === 'keyup' || type === 'keydown') {
+ // prevents outline when clicking on keyboard-focusable element
+ preventOutline(e.target || e.srcElement);
}
- L.DomEvent._lastClick = timeStamp;
-
- handler(e);
- }
-};
-
-// @function addListener(…): this
-// Alias to [`L.DomEvent.on`](#domevent-on)
-L.DomEvent.addListener = L.DomEvent.on;
-
-// @function removeListener(…): this
-// Alias to [`L.DomEvent.off`](#domevent-off)
-L.DomEvent.removeListener = L.DomEvent.off;
-
-
-
-/*
- * @class PosAnimation
- * @aka L.PosAnimation
- * @inherits Evented
- * Used internally for panning animations, utilizing CSS3 Transitions for modern browsers and a timer fallback for IE6-9.
- *
- * @example
- * ```js
- * var fx = new L.PosAnimation();
- * fx.run(el, [300, 500], 0.5);
- * ```
- *
- * @constructor L.PosAnimation()
- * Creates a `PosAnimation` object.
- *
- */
-
-L.PosAnimation = L.Evented.extend({
-
- // @method run(el: HTMLElement, newPos: Point, duration?: Number, easeLinearity?: Number)
- // Run an animation of a given element to a new position, optionally setting
- // duration in seconds (`0.25` by default) and easing linearity factor (3rd
- // argument of the [cubic bezier curve](http://cubic-bezier.com/#0,0,.5,1),
- // `0.5` by default).
- run: function (el, newPos, duration, easeLinearity) {
- 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();
-
- // @event start: Event
- // Fired when the animation starts
- this.fire('start');
- this._animate();
+ this._fireDOMEvent(e, type);
},
- // @method stop()
- // Stops the animation (if currently running).
- stop: function () {
- if (!this._inProgress) { return; }
+ _mouseEvents: ['click', 'dblclick', 'mouseover', 'mouseout', 'contextmenu'],
- this._step(true);
- this._complete();
- },
+ _fireDOMEvent: function (e, type, targets) {
- _animate: function () {
- // animation loop
- this._animId = L.Util.requestAnimFrame(this._animate, this);
- this._step();
- },
+ if (e.type === 'click') {
+ // Fire a synthetic 'preclick' event which propagates up (mainly for closing popups).
+ // @event preclick: MouseEvent
+ // Fired before mouse click on the map (sometimes useful when you
+ // want something to happen on click before any existing click
+ // handlers start running).
+ var synth = extend({}, e);
+ synth.type = 'preclick';
+ this._fireDOMEvent(synth, synth.type, targets);
+ }
- _step: function (round) {
- var elapsed = (+new Date()) - this._startTime,
- duration = this._duration * 1000;
+ if (e._stopped) { return; }
+
+ // Find the layer the event is propagating from and its parents.
+ targets = (targets || []).concat(this._findEventTargets(e, type));
- if (elapsed < duration) {
- this._runFrame(this._easeOut(elapsed / duration), round);
- } else {
- this._runFrame(1);
- this._complete();
+ if (!targets.length) { return; }
+
+ var target = targets[0];
+ if (type === 'contextmenu' && target.listens(type, true)) {
+ preventDefault(e);
}
- },
- _runFrame: function (progress, round) {
- var pos = this._startPos.add(this._offset.multiplyBy(progress));
- if (round) {
- pos._round();
+ var data = {
+ originalEvent: e
+ };
+
+ if (e.type !== 'keypress' && e.type !== 'keydown' && e.type !== 'keyup') {
+ var isMarker = target.getLatLng && (!target._radius || target._radius <= 10);
+ data.containerPoint = isMarker ?
+ this.latLngToContainerPoint(target.getLatLng()) : this.mouseEventToContainerPoint(e);
+ data.layerPoint = this.containerPointToLayerPoint(data.containerPoint);
+ data.latlng = isMarker ? target.getLatLng() : this.layerPointToLatLng(data.layerPoint);
}
- L.DomUtil.setPosition(this._el, pos);
- // @event step: Event
- // Fired continuously during the animation.
- this.fire('step');
+ for (var i = 0; i < targets.length; i++) {
+ targets[i].fire(type, data, true);
+ if (data.originalEvent._stopped ||
+ (targets[i].options.bubblingMouseEvents === false && indexOf(this._mouseEvents, type) !== -1)) { return; }
+ }
},
- _complete: function () {
- L.Util.cancelAnimFrame(this._animId);
-
- this._inProgress = false;
- // @event end: Event
- // Fired when the animation ends.
- this.fire('end');
+ _draggableMoved: function (obj) {
+ obj = obj.dragging && obj.dragging.enabled() ? obj : this;
+ return (obj.dragging && obj.dragging.moved()) || (this.boxZoom && this.boxZoom.moved());
},
- _easeOut: function (t) {
- return 1 - Math.pow(1 - t, this._easeOutPower);
- }
-});
+ _clearHandlers: function () {
+ for (var i = 0, len = this._handlers.length; i < len; i++) {
+ this._handlers[i].disable();
+ }
+ },
+ // @section Other Methods
+ // @method whenReady(fn: Function, context?: Object): this
+ // Runs the given function `fn` when the map gets initialized with
+ // a view (center and zoom) and at least one layer, or immediately
+ // if it's already initialized, optionally passing a function context.
+ whenReady: function (callback, context) {
+ if (this._loaded) {
+ callback.call(context || this, {target: this});
+ } else {
+ this.on('load', callback, context);
+ }
+ return this;
+ },
-/*
- * @namespace Projection
- * @projection L.Projection.Mercator
- *
- * Elliptical Mercator projection — more complex than Spherical Mercator. Takes into account that Earth is a geoid, not a perfect sphere. Used by the EPSG:3395 CRS.
- */
-L.Projection.Mercator = {
- R: 6378137,
- R_MINOR: 6356752.314245179,
+ // private methods for getting map state
- bounds: L.bounds([-20037508.34279, -15496570.73972], [20037508.34279, 18764656.23138]),
+ _getMapPanePos: function () {
+ return getPosition(this._mapPane) || new Point(0, 0);
+ },
- project: function (latlng) {
- var d = Math.PI / 180,
- r = this.R,
- y = latlng.lat * d,
- tmp = this.R_MINOR / r,
- e = Math.sqrt(1 - tmp * tmp),
- con = e * Math.sin(y);
+ _moved: function () {
+ var pos = this._getMapPanePos();
+ return pos && !pos.equals([0, 0]);
+ },
- var ts = Math.tan(Math.PI / 4 - y / 2) / Math.pow((1 - con) / (1 + con), e / 2);
- y = -r * Math.log(Math.max(ts, 1E-10));
+ _getTopLeftPoint: function (center, zoom) {
+ var pixelOrigin = center && zoom !== undefined ?
+ this._getNewPixelOrigin(center, zoom) :
+ this.getPixelOrigin();
+ return pixelOrigin.subtract(this._getMapPanePos());
+ },
- return new L.Point(latlng.lng * d * r, y);
+ _getNewPixelOrigin: function (center, zoom) {
+ var viewHalf = this.getSize()._divideBy(2);
+ return this.project(center, zoom)._subtract(viewHalf)._add(this._getMapPanePos())._round();
},
- unproject: function (point) {
- var d = 180 / Math.PI,
- r = this.R,
- tmp = this.R_MINOR / r,
- e = Math.sqrt(1 - tmp * tmp),
- ts = Math.exp(-point.y / r),
- phi = Math.PI / 2 - 2 * Math.atan(ts);
+ _latLngToNewLayerPoint: function (latlng, zoom, center) {
+ var topLeft = this._getNewPixelOrigin(center, zoom);
+ return this.project(latlng, zoom)._subtract(topLeft);
+ },
- for (var i = 0, dphi = 0.1, con; i < 15 && Math.abs(dphi) > 1e-7; i++) {
- con = e * Math.sin(phi);
- con = Math.pow((1 - con) / (1 + con), e / 2);
- dphi = Math.PI / 2 - 2 * Math.atan(ts * con) - phi;
- phi += dphi;
- }
+ _latLngBoundsToNewLayerBounds: function (latLngBounds, zoom, center) {
+ var topLeft = this._getNewPixelOrigin(center, zoom);
+ return toBounds([
+ this.project(latLngBounds.getSouthWest(), zoom)._subtract(topLeft),
+ this.project(latLngBounds.getNorthWest(), zoom)._subtract(topLeft),
+ this.project(latLngBounds.getSouthEast(), zoom)._subtract(topLeft),
+ this.project(latLngBounds.getNorthEast(), zoom)._subtract(topLeft)
+ ]);
+ },
- return new L.LatLng(phi * d, point.x * d / r);
- }
-};
+ // layer point of the current center
+ _getCenterLayerPoint: function () {
+ return this.containerPointToLayerPoint(this.getSize()._divideBy(2));
+ },
+ // offset of the specified place to the current center in pixels
+ _getCenterOffset: function (latlng) {
+ return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint());
+ },
+ // adjust center for view to get inside bounds
+ _limitCenter: function (center, zoom, bounds) {
-/*
- * @namespace CRS
- * @crs L.CRS.EPSG3395
- *
- * Rarely used by some commercial tile providers. Uses Elliptical Mercator projection.
- */
+ if (!bounds) { return center; }
-L.CRS.EPSG3395 = L.extend({}, L.CRS.Earth, {
- code: 'EPSG:3395',
- projection: L.Projection.Mercator,
+ var centerPoint = this.project(center, zoom),
+ viewHalf = this.getSize().divideBy(2),
+ viewBounds = new Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)),
+ offset = this._getBoundsOffset(viewBounds, bounds, zoom);
- transformation: (function () {
- var scale = 0.5 / (Math.PI * L.Projection.Mercator.R);
- return new L.Transformation(scale, 0.5, -scale, 0.5);
- }())
-});
+ // If offset is less than a pixel, ignore.
+ // This prevents unstable projections from getting into
+ // an infinite loop of tiny offsets.
+ if (offset.round().equals([0, 0])) {
+ return center;
+ }
+ return this.unproject(centerPoint.add(offset), zoom);
+ },
+ // adjust offset for view to get inside bounds
+ _limitOffset: function (offset, bounds) {
+ if (!bounds) { return offset; }
-/*
- * @class GridLayer
- * @inherits Layer
- * @aka L.GridLayer
- *
- * Generic class for handling a tiled grid of HTML elements. This is the base class for all tile layers and replaces `TileLayer.Canvas`.
- * GridLayer can be extended to create a tiled grid of HTML elements like `<canvas>`, `<img>` or `<div>`. GridLayer will handle creating and animating these DOM elements for you.
- *
- *
- * @section Synchronous usage
- * @example
- *
- * To create a custom layer, extend GridLayer and implement the `createTile()` method, which will be passed a `Point` object with the `x`, `y`, and `z` (zoom level) coordinates to draw your tile.
- *
- * ```js
- * var CanvasLayer = L.GridLayer.extend({
- * createTile: function(coords){
- * // create a <canvas> element for drawing
- * var tile = L.DomUtil.create('canvas', 'leaflet-tile');
- *
- * // setup tile width and height according to the options
- * var size = this.getTileSize();
- * tile.width = size.x;
- * tile.height = size.y;
- *
- * // get a canvas context and draw something on it using coords.x, coords.y and coords.z
- * var ctx = tile.getContext('2d');
- *
- * // return the tile so it can be rendered on screen
- * return tile;
- * }
- * });
- * ```
- *
- * @section Asynchronous usage
- * @example
- *
- * Tile creation can also be asynchronous, this is useful when using a third-party drawing library. Once the tile is finished drawing it can be passed to the `done()` callback.
- *
- * ```js
- * var CanvasLayer = L.GridLayer.extend({
- * createTile: function(coords, done){
- * var error;
- *
- * // create a <canvas> element for drawing
- * var tile = L.DomUtil.create('canvas', 'leaflet-tile');
- *
- * // setup tile width and height according to the options
- * var size = this.getTileSize();
- * tile.width = size.x;
- * tile.height = size.y;
- *
- * // draw something asynchronously and pass the tile to the done() callback
- * setTimeout(function() {
- * done(error, tile);
- * }, 1000);
- *
- * return tile;
- * }
- * });
- * ```
- *
- * @section
- */
+ var viewBounds = this.getPixelBounds(),
+ newBounds = new Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset));
+ return offset.add(this._getBoundsOffset(newBounds, bounds));
+ },
-L.GridLayer = L.Layer.extend({
+ // returns offset needed for pxBounds to get inside maxBounds at a specified zoom
+ _getBoundsOffset: function (pxBounds, maxBounds, zoom) {
+ var projectedMaxBounds = toBounds(
+ this.project(maxBounds.getNorthEast(), zoom),
+ this.project(maxBounds.getSouthWest(), zoom)
+ ),
+ minOffset = projectedMaxBounds.min.subtract(pxBounds.min),
+ maxOffset = projectedMaxBounds.max.subtract(pxBounds.max),
- // @section
- // @aka GridLayer options
- options: {
- // @option tileSize: Number|Point = 256
- // Width and height of tiles in the grid. Use a number if width and height are equal, or `L.point(width, height)` otherwise.
- tileSize: 256,
+ dx = this._rebound(minOffset.x, -maxOffset.x),
+ dy = this._rebound(minOffset.y, -maxOffset.y);
- // @option opacity: Number = 1.0
- // Opacity of the tiles. Can be used in the `createTile()` function.
- opacity: 1,
+ return new Point(dx, dy);
+ },
- // @option updateWhenIdle: Boolean = depends
- // If `false`, new tiles are loaded during panning, otherwise only after it (for better performance). `true` by default on mobile browsers, otherwise `false`.
- updateWhenIdle: L.Browser.mobile,
+ _rebound: function (left, right) {
+ return left + right > 0 ?
+ Math.round(left - right) / 2 :
+ Math.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right));
+ },
- // @option updateWhenZooming: Boolean = true
- // By default, a smooth zoom animation (during a [touch zoom](#map-touchzoom) or a [`flyTo()`](#map-flyto)) will update grid layers every integer zoom level. Setting this option to `false` will update the grid layer only when the smooth animation ends.
- updateWhenZooming: true,
+ _limitZoom: function (zoom) {
+ var min = this.getMinZoom(),
+ max = this.getMaxZoom(),
+ snap = any3d ? this.options.zoomSnap : 1;
+ if (snap) {
+ zoom = Math.round(zoom / snap) * snap;
+ }
+ return Math.max(min, Math.min(max, zoom));
+ },
- // @option updateInterval: Number = 200
- // Tiles will not update more than once every `updateInterval` milliseconds when panning.
- updateInterval: 200,
+ _onPanTransitionStep: function () {
+ this.fire('move');
+ },
- // @option zIndex: Number = 1
- // The explicit zIndex of the tile layer.
- zIndex: 1,
+ _onPanTransitionEnd: function () {
+ removeClass(this._mapPane, 'leaflet-pan-anim');
+ this.fire('moveend');
+ },
- // @option bounds: LatLngBounds = undefined
- // If set, tiles will only be loaded inside the set `LatLngBounds`.
- bounds: null,
+ _tryAnimatedPan: function (center, options) {
+ // difference between the new and current centers in pixels
+ var offset = this._getCenterOffset(center)._trunc();
- // @option minZoom: Number = 0
- // The minimum zoom level that tiles will be loaded at. By default the entire map.
- minZoom: 0,
+ // don't animate too far unless animate: true specified in options
+ if ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; }
- // @option maxZoom: Number = undefined
- // The maximum zoom level that tiles will be loaded at.
- maxZoom: undefined,
+ this.panBy(offset, options);
- // @option noWrap: Boolean = false
- // Whether the layer is wrapped around the antimeridian. If `true`, the
- // GridLayer will only be displayed once at low zoom levels. Has no
- // effect when the [map CRS](#map-crs) doesn't wrap around. Can be used
- // in combination with [`bounds`](#gridlayer-bounds) to prevent requesting
- // tiles outside the CRS limits.
- noWrap: false,
+ return true;
+ },
- // @option pane: String = 'tilePane'
- // `Map pane` where the grid layer will be added.
- pane: 'tilePane',
+ _createAnimProxy: function () {
- // @option className: String = ''
- // A custom class name to assign to the tile layer. Empty by default.
- className: '',
+ var proxy = this._proxy = create$1('div', 'leaflet-proxy leaflet-zoom-animated');
+ this._panes.mapPane.appendChild(proxy);
- // @option keepBuffer: Number = 2
- // When panning the map, keep this many rows and columns of tiles before unloading them.
- keepBuffer: 2
- },
+ this.on('zoomanim', function (e) {
+ var prop = TRANSFORM,
+ transform = this._proxy.style[prop];
- initialize: function (options) {
- L.setOptions(this, options);
- },
+ setTransform(this._proxy, this.project(e.center, e.zoom), this.getZoomScale(e.zoom, 1));
- onAdd: function () {
- this._initContainer();
+ // workaround for case when transform is the same and so transitionend event is not fired
+ if (transform === this._proxy.style[prop] && this._animatingZoom) {
+ this._onZoomTransitionEnd();
+ }
+ }, this);
- this._levels = {};
- this._tiles = {};
+ this.on('load moveend', this._animMoveEnd, this);
- this._resetView();
- this._update();
+ this._on('unload', this._destroyAnimProxy, this);
},
- beforeAdd: function (map) {
- map._addZoomLimit(this);
+ _destroyAnimProxy: function () {
+ remove(this._proxy);
+ this.off('load moveend', this._animMoveEnd, this);
+ delete this._proxy;
},
- onRemove: function (map) {
- this._removeAllTiles();
- L.DomUtil.remove(this._container);
- map._removeZoomLimit(this);
- this._container = null;
- this._tileZoom = null;
+ _animMoveEnd: function () {
+ var c = this.getCenter(),
+ z = this.getZoom();
+ setTransform(this._proxy, this.project(c, z), this.getZoomScale(z, 1));
},
- // @method bringToFront: this
- // Brings the tile layer to the top of all tile layers.
- bringToFront: function () {
- if (this._map) {
- L.DomUtil.toFront(this._container);
- this._setAutoZIndex(Math.max);
+ _catchTransitionEnd: function (e) {
+ if (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) {
+ this._onZoomTransitionEnd();
}
- return this;
},
- // @method bringToBack: this
- // Brings the tile layer to the bottom of all tile layers.
- bringToBack: function () {
- if (this._map) {
- L.DomUtil.toBack(this._container);
- this._setAutoZIndex(Math.min);
- }
- return this;
+ _nothingToAnimate: function () {
+ return !this._container.getElementsByClassName('leaflet-zoom-animated').length;
},
- // @method getContainer: HTMLElement
- // Returns the HTML element that contains the tiles for this layer.
- getContainer: function () {
- return this._container;
- },
+ _tryAnimatedZoom: function (center, zoom, options) {
- // @method setOpacity(opacity: Number): this
- // Changes the [opacity](#gridlayer-opacity) of the grid layer.
- setOpacity: function (opacity) {
- this.options.opacity = opacity;
- this._updateOpacity();
- return this;
- },
+ if (this._animatingZoom) { return true; }
- // @method setZIndex(zIndex: Number): this
- // Changes the [zIndex](#gridlayer-zindex) of the grid layer.
- setZIndex: function (zIndex) {
- this.options.zIndex = zIndex;
- this._updateZIndex();
+ options = options || {};
- return this;
- },
+ // don't animate if disabled, not supported or zoom difference is too large
+ if (!this._zoomAnimated || options.animate === false || this._nothingToAnimate() ||
+ Math.abs(zoom - this._zoom) > this.options.zoomAnimationThreshold) { return false; }
- // @method isLoading: Boolean
- // Returns `true` if any tile in the grid layer has not finished loading.
- isLoading: function () {
- return this._loading;
- },
+ // offset is the pixel coords of the zoom origin relative to the current center
+ var scale = this.getZoomScale(zoom),
+ offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale);
- // @method redraw: this
- // Causes the layer to clear all the tiles and request them again.
- redraw: function () {
- if (this._map) {
- this._removeAllTiles();
- this._update();
- }
- return this;
+ // don't animate if the zoom origin isn't within one screen from the current center, unless forced
+ if (options.animate !== true && !this.getSize().contains(offset)) { return false; }
+
+ requestAnimFrame(function () {
+ this
+ ._moveStart(true, false)
+ ._animateZoom(center, zoom, true);
+ }, this);
+
+ return true;
},
- getEvents: function () {
- var events = {
- viewprereset: this._invalidateAll,
- viewreset: this._resetView,
- zoom: this._resetView,
- moveend: this._onMoveEnd
- };
+ _animateZoom: function (center, zoom, startAnim, noUpdate) {
+ if (!this._mapPane) { return; }
- if (!this.options.updateWhenIdle) {
- // update tiles on move, but not more often than once per given interval
- if (!this._onMove) {
- this._onMove = L.Util.throttle(this._onMoveEnd, this.options.updateInterval, this);
- }
+ if (startAnim) {
+ this._animatingZoom = true;
- events.move = this._onMove;
- }
+ // remember what center/zoom to set after animation
+ this._animateToCenter = center;
+ this._animateToZoom = zoom;
- if (this._zoomAnimated) {
- events.zoomanim = this._animateZoom;
+ addClass(this._mapPane, 'leaflet-zoom-anim');
}
- return events;
- },
+ // @section Other Events
+ // @event zoomanim: ZoomAnimEvent
+ // Fired at least once per zoom animation. For continuous zoom, like pinch zooming, fired once per frame during zoom.
+ this.fire('zoomanim', {
+ center: center,
+ zoom: zoom,
+ noUpdate: noUpdate
+ });
- // @section Extension methods
- // Layers extending `GridLayer` shall reimplement the following method.
- // @method createTile(coords: Object, done?: Function): HTMLElement
- // Called only internally, must be overriden by classes extending `GridLayer`.
- // Returns the `HTMLElement` corresponding to the given `coords`. If the `done` callback
- // is specified, it must be called when the tile has finished loading and drawing.
- createTile: function () {
- return document.createElement('div');
+ // Work around webkit not firing 'transitionend', see https://github.com/Leaflet/Leaflet/issues/3689, 2693
+ setTimeout(bind(this._onZoomTransitionEnd, this), 250);
},
+ _onZoomTransitionEnd: function () {
+ if (!this._animatingZoom) { return; }
+
+ if (this._mapPane) {
+ removeClass(this._mapPane, 'leaflet-zoom-anim');
+ }
+
+ this._animatingZoom = false;
+
+ this._move(this._animateToCenter, this._animateToZoom);
+
+ // This anim frame should prevent an obscure iOS webkit tile loading race condition.
+ requestAnimFrame(function () {
+ this._moveEnd(true);
+ }, this);
+ }
+});
+
+// @section
+
+// @factory L.map(id: String, options?: Map options)
+// Instantiates a map object given the DOM ID of a `<div>` element
+// and optionally an object literal with `Map options`.
+//
+// @alternative
+// @factory L.map(el: HTMLElement, options?: Map options)
+// Instantiates a map object given an instance of a `<div>` HTML element
+// and optionally an object literal with `Map options`.
+function createMap(id, options) {
+ return new Map(id, options);
+}
+
+/*
+ * @class Control
+ * @aka L.Control
+ * @inherits Class
+ *
+ * L.Control is a base class for implementing map controls. Handles positioning.
+ * All other controls extend from this class.
+ */
+
+var Control = Class.extend({
// @section
- // @method getTileSize: Point
- // Normalizes the [tileSize option](#gridlayer-tilesize) into a point. Used by the `createTile()` method.
- getTileSize: function () {
- var s = this.options.tileSize;
- return s instanceof L.Point ? s : new L.Point(s, s);
+ // @aka Control options
+ options: {
+ // @option position: String = 'topright'
+ // The position of the control (one of the map corners). Possible values are `'topleft'`,
+ // `'topright'`, `'bottomleft'` or `'bottomright'`
+ position: 'topright'
},
- _updateZIndex: function () {
- if (this._container && this.options.zIndex !== undefined && this.options.zIndex !== null) {
- this._container.style.zIndex = this.options.zIndex;
- }
+ initialize: function (options) {
+ setOptions(this, options);
},
- _setAutoZIndex: function (compare) {
- // go through all other layers of the same pane, set zIndex to max + 1 (front) or min - 1 (back)
+ /* @section
+ * Classes extending L.Control will inherit the following methods:
+ *
+ * @method getPosition: string
+ * Returns the position of the control.
+ */
+ getPosition: function () {
+ return this.options.position;
+ },
- var layers = this.getPane().children,
- edgeZIndex = -compare(-Infinity, Infinity); // -Infinity for max, Infinity for min
+ // @method setPosition(position: string): this
+ // Sets the position of the control.
+ setPosition: function (position) {
+ var map = this._map;
- for (var i = 0, len = layers.length, zIndex; i < len; i++) {
+ if (map) {
+ map.removeControl(this);
+ }
- zIndex = layers[i].style.zIndex;
+ this.options.position = position;
- if (layers[i] !== this._container && zIndex) {
- edgeZIndex = compare(edgeZIndex, +zIndex);
- }
+ if (map) {
+ map.addControl(this);
}
- if (isFinite(edgeZIndex)) {
- this.options.zIndex = edgeZIndex + compare(-1, 1);
- this._updateZIndex();
- }
+ return this;
+ },
+
+ // @method getContainer: HTMLElement
+ // Returns the HTMLElement that contains the control.
+ getContainer: function () {
+ return this._container;
},
- _updateOpacity: function () {
- if (!this._map) { return; }
+ // @method addTo(map: Map): this
+ // Adds the control to the given map.
+ addTo: function (map) {
+ this.remove();
+ this._map = map;
- // IE doesn't inherit filter opacity properly, so we're forced to set it on tiles
- if (L.Browser.ielt9) { return; }
+ var container = this._container = this.onAdd(map),
+ pos = this.getPosition(),
+ corner = map._controlCorners[pos];
- L.DomUtil.setOpacity(this._container, this.options.opacity);
+ addClass(container, 'leaflet-control');
- var now = +new Date(),
- nextFrame = false,
- willPrune = false;
+ if (pos.indexOf('bottom') !== -1) {
+ corner.insertBefore(container, corner.firstChild);
+ } else {
+ corner.appendChild(container);
+ }
- for (var key in this._tiles) {
- var tile = this._tiles[key];
- if (!tile.current || !tile.loaded) { continue; }
+ this._map.on('unload', this.remove, this);
- var fade = Math.min(1, (now - tile.loaded) / 200);
+ return this;
+ },
- L.DomUtil.setOpacity(tile.el, fade);
- if (fade < 1) {
- nextFrame = true;
- } else {
- if (tile.active) { willPrune = true; }
- tile.active = true;
- }
+ // @method remove: this
+ // Removes the control from the map it is currently active on.
+ remove: function () {
+ if (!this._map) {
+ return this;
}
- if (willPrune && !this._noPrune) { this._pruneTiles(); }
+ remove(this._container);
- if (nextFrame) {
- L.Util.cancelAnimFrame(this._fadeFrame);
- this._fadeFrame = L.Util.requestAnimFrame(this._updateOpacity, this);
+ if (this.onRemove) {
+ this.onRemove(this._map);
}
- },
- _initContainer: function () {
- if (this._container) { return; }
+ this._map.off('unload', this.remove, this);
+ this._map = null;
- this._container = L.DomUtil.create('div', 'leaflet-layer ' + (this.options.className || ''));
- this._updateZIndex();
+ return this;
+ },
- if (this.options.opacity < 1) {
- this._updateOpacity();
+ _refocusOnMap: function (e) {
+ // if map exists and event is not a keyboard event
+ if (this._map && e && e.screenX > 0 && e.screenY > 0) {
+ this._map.getContainer().focus();
}
+ }
+});
- this.getPane().appendChild(this._container);
+var control = function (options) {
+ return new Control(options);
+};
+
+/* @section Extension methods
+ * @uninheritable
+ *
+ * Every control should extend from `L.Control` and (re-)implement the following methods.
+ *
+ * @method onAdd(map: Map): HTMLElement
+ * Should return the container DOM element for the control and add listeners on relevant map events. Called on [`control.addTo(map)`](#control-addTo).
+ *
+ * @method onRemove(map: Map)
+ * Optional method. Should contain all clean up code that removes the listeners previously added in [`onAdd`](#control-onadd). Called on [`control.remove()`](#control-remove).
+ */
+
+/* @namespace Map
+ * @section Methods for Layers and Controls
+ */
+Map.include({
+ // @method addControl(control: Control): this
+ // Adds the given control to the map
+ addControl: function (control) {
+ control.addTo(this);
+ return this;
},
- _updateLevels: function () {
+ // @method removeControl(control: Control): this
+ // Removes the given control from the map
+ removeControl: function (control) {
+ control.remove();
+ return this;
+ },
- var zoom = this._tileZoom,
- maxZoom = this.options.maxZoom;
+ _initControlPos: function () {
+ var corners = this._controlCorners = {},
+ l = 'leaflet-',
+ container = this._controlContainer =
+ create$1('div', l + 'control-container', this._container);
- if (zoom === undefined) { return undefined; }
+ function createCorner(vSide, hSide) {
+ var className = l + vSide + ' ' + l + hSide;
- for (var z in this._levels) {
- if (this._levels[z].el.children.length || z === zoom) {
- this._levels[z].el.style.zIndex = maxZoom - Math.abs(zoom - z);
- } else {
- L.DomUtil.remove(this._levels[z].el);
- this._removeTilesAtZoom(z);
- delete this._levels[z];
- }
+ corners[vSide + hSide] = create$1('div', className, container);
}
- var level = this._levels[zoom],
- map = this._map;
+ createCorner('top', 'left');
+ createCorner('top', 'right');
+ createCorner('bottom', 'left');
+ createCorner('bottom', 'right');
+ },
- if (!level) {
- level = this._levels[zoom] = {};
+ _clearControlPos: function () {
+ for (var i in this._controlCorners) {
+ remove(this._controlCorners[i]);
+ }
+ remove(this._controlContainer);
+ delete this._controlCorners;
+ delete this._controlContainer;
+ }
+});
- level.el = L.DomUtil.create('div', 'leaflet-tile-container leaflet-zoom-animated', this._container);
- level.el.style.zIndex = maxZoom;
+/*
+ * @class Control.Layers
+ * @aka L.Control.Layers
+ * @inherits Control
+ *
+ * The layers control gives users the ability to switch between different base layers and switch overlays on/off (check out the [detailed example](http://leafletjs.com/examples/layers-control/)). Extends `Control`.
+ *
+ * @example
+ *
+ * ```js
+ * var baseLayers = {
+ * "Mapbox": mapbox,
+ * "OpenStreetMap": osm
+ * };
+ *
+ * var overlays = {
+ * "Marker": marker,
+ * "Roads": roadsLayer
+ * };
+ *
+ * L.control.layers(baseLayers, overlays).addTo(map);
+ * ```
+ *
+ * The `baseLayers` and `overlays` parameters are object literals with layer names as keys and `Layer` objects as values:
+ *
+ * ```js
+ * {
+ * "<someName1>": layer1,
+ * "<someName2>": layer2
+ * }
+ * ```
+ *
+ * The layer names can contain HTML, which allows you to add additional styling to the items:
+ *
+ * ```js
+ * {"<img src='my-layer-icon' /> <span class='my-layer-item'>My Layer</span>": myLayer}
+ * ```
+ */
- level.origin = map.project(map.unproject(map.getPixelOrigin()), zoom).round();
- level.zoom = zoom;
+var Layers = Control.extend({
+ // @section
+ // @aka Control.Layers options
+ options: {
+ // @option collapsed: Boolean = true
+ // If `true`, the control will be collapsed into an icon and expanded on mouse hover or touch.
+ collapsed: true,
+ position: 'topright',
- this._setZoomTransform(level, map.getCenter(), map.getZoom());
+ // @option autoZIndex: Boolean = true
+ // If `true`, the control will assign zIndexes in increasing order to all of its layers so that the order is preserved when switching them on/off.
+ autoZIndex: true,
- // force the browser to consider the newly added element for transition
- L.Util.falseFn(level.el.offsetWidth);
- }
+ // @option hideSingleBase: Boolean = false
+ // If `true`, the base layers in the control will be hidden when there is only one.
+ hideSingleBase: false,
- this._level = level;
+ // @option sortLayers: Boolean = false
+ // Whether to sort the layers. When `false`, layers will keep the order
+ // in which they were added to the control.
+ sortLayers: false,
- return level;
+ // @option sortFunction: Function = *
+ // A [compare function](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/sort)
+ // that will be used for sorting the layers, when `sortLayers` is `true`.
+ // The function receives both the `L.Layer` instances and their names, as in
+ // `sortFunction(layerA, layerB, nameA, nameB)`.
+ // By default, it sorts layers alphabetically by their name.
+ sortFunction: function (layerA, layerB, nameA, nameB) {
+ return nameA < nameB ? -1 : (nameB < nameA ? 1 : 0);
+ }
},
- _pruneTiles: function () {
- if (!this._map) {
- return;
- }
+ initialize: function (baseLayers, overlays, options) {
+ setOptions(this, options);
- var key, tile;
+ this._layerControlInputs = [];
+ this._layers = [];
+ this._lastZIndex = 0;
+ this._handlingClick = false;
- var zoom = this._map.getZoom();
- if (zoom > this.options.maxZoom ||
- zoom < this.options.minZoom) {
- this._removeAllTiles();
- return;
+ for (var i in baseLayers) {
+ this._addLayer(baseLayers[i], i);
}
- for (key in this._tiles) {
- tile = this._tiles[key];
- tile.retain = tile.current;
+ for (i in overlays) {
+ this._addLayer(overlays[i], i, true);
}
+ },
- for (key in this._tiles) {
- tile = this._tiles[key];
- if (tile.current && !tile.active) {
- var coords = tile.coords;
- if (!this._retainParent(coords.x, coords.y, coords.z, coords.z - 5)) {
- this._retainChildren(coords.x, coords.y, coords.z, coords.z + 2);
- }
- }
- }
+ onAdd: function (map) {
+ this._initLayout();
+ this._update();
- for (key in this._tiles) {
- if (!this._tiles[key].retain) {
- this._removeTile(key);
- }
+ this._map = map;
+ map.on('zoomend', this._checkDisabledLayers, this);
+
+ for (var i = 0; i < this._layers.length; i++) {
+ this._layers[i].layer.on('add remove', this._onLayerChange, this);
}
+
+ return this._container;
},
- _removeTilesAtZoom: function (zoom) {
- for (var key in this._tiles) {
- if (this._tiles[key].coords.z !== zoom) {
- continue;
- }
- this._removeTile(key);
+ addTo: function (map) {
+ Control.prototype.addTo.call(this, map);
+ // Trigger expand after Layers Control has been inserted into DOM so that is now has an actual height.
+ return this._expandIfNotCollapsed();
+ },
+
+ onRemove: function () {
+ this._map.off('zoomend', this._checkDisabledLayers, this);
+
+ for (var i = 0; i < this._layers.length; i++) {
+ this._layers[i].layer.off('add remove', this._onLayerChange, this);
}
},
- _removeAllTiles: function () {
- for (var key in this._tiles) {
- this._removeTile(key);
+ // @method addBaseLayer(layer: Layer, name: String): this
+ // Adds a base layer (radio button entry) with the given name to the control.
+ addBaseLayer: function (layer, name) {
+ this._addLayer(layer, name);
+ return (this._map) ? this._update() : this;
+ },
+
+ // @method addOverlay(layer: Layer, name: String): this
+ // Adds an overlay (checkbox entry) with the given name to the control.
+ addOverlay: function (layer, name) {
+ this._addLayer(layer, name, true);
+ return (this._map) ? this._update() : this;
+ },
+
+ // @method removeLayer(layer: Layer): this
+ // Remove the given layer from the control.
+ removeLayer: function (layer) {
+ layer.off('add remove', this._onLayerChange, this);
+
+ var obj = this._getLayer(stamp(layer));
+ if (obj) {
+ this._layers.splice(this._layers.indexOf(obj), 1);
}
+ return (this._map) ? this._update() : this;
},
- _invalidateAll: function () {
- for (var z in this._levels) {
- L.DomUtil.remove(this._levels[z].el);
- delete this._levels[z];
+ // @method expand(): this
+ // Expand the control container if collapsed.
+ expand: function () {
+ addClass(this._container, 'leaflet-control-layers-expanded');
+ this._section.style.height = null;
+ var acceptableHeight = this._map.getSize().y - (this._container.offsetTop + 50);
+ if (acceptableHeight < this._section.clientHeight) {
+ addClass(this._section, 'leaflet-control-layers-scrollbar');
+ this._section.style.height = acceptableHeight + 'px';
+ } else {
+ removeClass(this._section, 'leaflet-control-layers-scrollbar');
}
- this._removeAllTiles();
+ this._checkDisabledLayers();
+ return this;
+ },
- this._tileZoom = null;
+ // @method collapse(): this
+ // Collapse the control container if expanded.
+ collapse: function () {
+ removeClass(this._container, 'leaflet-control-layers-expanded');
+ return this;
},
- _retainParent: function (x, y, z, minZoom) {
- var x2 = Math.floor(x / 2),
- y2 = Math.floor(y / 2),
- z2 = z - 1,
- coords2 = new L.Point(+x2, +y2);
- coords2.z = +z2;
+ _initLayout: function () {
+ var className = 'leaflet-control-layers',
+ container = this._container = create$1('div', className),
+ collapsed = this.options.collapsed;
- var key = this._tileCoordsToKey(coords2),
- tile = this._tiles[key];
+ // makes this work on IE touch devices by stopping it from firing a mouseout event when the touch is released
+ container.setAttribute('aria-haspopup', true);
- if (tile && tile.active) {
- tile.retain = true;
- return true;
+ disableClickPropagation(container);
+ disableScrollPropagation(container);
- } else if (tile && tile.loaded) {
- tile.retain = true;
- }
+ var section = this._section = create$1('section', className + '-list');
- if (z2 > minZoom) {
- return this._retainParent(x2, y2, z2, minZoom);
- }
+ if (collapsed) {
+ this._map.on('click', this.collapse, this);
- return false;
- },
+ if (!android) {
+ on(container, {
+ mouseenter: this.expand,
+ mouseleave: this.collapse
+ }, this);
+ }
+ }
- _retainChildren: function (x, y, z, maxZoom) {
+ var link = this._layersLink = create$1('a', className + '-toggle', container);
+ link.href = '#';
+ link.title = 'Layers';
- for (var i = 2 * x; i < 2 * x + 2; i++) {
- for (var j = 2 * y; j < 2 * y + 2; j++) {
+ if (touch) {
+ on(link, 'click', stop);
+ on(link, 'click', this.expand, this);
+ } else {
+ on(link, 'focus', this.expand, this);
+ }
- var coords = new L.Point(i, j);
- coords.z = z + 1;
+ if (!collapsed) {
+ this.expand();
+ }
- var key = this._tileCoordsToKey(coords),
- tile = this._tiles[key];
+ this._baseLayersList = create$1('div', className + '-base', section);
+ this._separator = create$1('div', className + '-separator', section);
+ this._overlaysList = create$1('div', className + '-overlays', section);
- if (tile && tile.active) {
- tile.retain = true;
- continue;
+ container.appendChild(section);
+ },
- } else if (tile && tile.loaded) {
- tile.retain = true;
- }
+ _getLayer: function (id) {
+ for (var i = 0; i < this._layers.length; i++) {
- if (z + 1 < maxZoom) {
- this._retainChildren(i, j, z + 1, maxZoom);
- }
+ if (this._layers[i] && stamp(this._layers[i].layer) === id) {
+ return this._layers[i];
}
}
},
- _resetView: function (e) {
- var animating = e && (e.pinch || e.flyTo);
- this._setView(this._map.getCenter(), this._map.getZoom(), animating, animating);
- },
+ _addLayer: function (layer, name, overlay) {
+ if (this._map) {
+ layer.on('add remove', this._onLayerChange, this);
+ }
- _animateZoom: function (e) {
- this._setView(e.center, e.zoom, true, e.noUpdate);
- },
+ this._layers.push({
+ layer: layer,
+ name: name,
+ overlay: overlay
+ });
- _setView: function (center, zoom, noPrune, noUpdate) {
- var tileZoom = Math.round(zoom);
- if ((this.options.maxZoom !== undefined && tileZoom > this.options.maxZoom) ||
- (this.options.minZoom !== undefined && tileZoom < this.options.minZoom)) {
- tileZoom = undefined;
+ if (this.options.sortLayers) {
+ this._layers.sort(bind(function (a, b) {
+ return this.options.sortFunction(a.layer, b.layer, a.name, b.name);
+ }, this));
}
- var tileZoomChanged = this.options.updateWhenZooming && (tileZoom !== this._tileZoom);
-
- if (!noUpdate || tileZoomChanged) {
+ if (this.options.autoZIndex && layer.setZIndex) {
+ this._lastZIndex++;
+ layer.setZIndex(this._lastZIndex);
+ }
- this._tileZoom = tileZoom;
+ this._expandIfNotCollapsed();
+ },
- if (this._abortLoading) {
- this._abortLoading();
- }
+ _update: function () {
+ if (!this._container) { return this; }
- this._updateLevels();
- this._resetGrid();
+ empty(this._baseLayersList);
+ empty(this._overlaysList);
- if (tileZoom !== undefined) {
- this._update(center);
- }
+ this._layerControlInputs = [];
+ var baseLayersPresent, overlaysPresent, i, obj, baseLayersCount = 0;
- if (!noPrune) {
- this._pruneTiles();
- }
+ for (i = 0; i < this._layers.length; i++) {
+ obj = this._layers[i];
+ this._addItem(obj);
+ overlaysPresent = overlaysPresent || obj.overlay;
+ baseLayersPresent = baseLayersPresent || !obj.overlay;
+ baseLayersCount += !obj.overlay ? 1 : 0;
+ }
- // Flag to prevent _updateOpacity from pruning tiles during
- // a zoom anim or a pinch gesture
- this._noPrune = !!noPrune;
+ // Hide base layers section if there's only one layer.
+ if (this.options.hideSingleBase) {
+ baseLayersPresent = baseLayersPresent && baseLayersCount > 1;
+ this._baseLayersList.style.display = baseLayersPresent ? '' : 'none';
}
- this._setZoomTransforms(center, zoom);
+ this._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none';
+
+ return this;
},
- _setZoomTransforms: function (center, zoom) {
- for (var i in this._levels) {
- this._setZoomTransform(this._levels[i], center, zoom);
+ _onLayerChange: function (e) {
+ if (!this._handlingClick) {
+ this._update();
}
- },
- _setZoomTransform: function (level, center, zoom) {
- var scale = this._map.getZoomScale(zoom, level.zoom),
- translate = level.origin.multiplyBy(scale)
- .subtract(this._map._getNewPixelOrigin(center, zoom)).round();
+ var obj = this._getLayer(stamp(e.target));
- if (L.Browser.any3d) {
- L.DomUtil.setTransform(level.el, translate, scale);
- } else {
- L.DomUtil.setPosition(level.el, translate);
+ // @namespace Map
+ // @section Layer events
+ // @event baselayerchange: LayersControlEvent
+ // Fired when the base layer is changed through the [layer control](#control-layers).
+ // @event overlayadd: LayersControlEvent
+ // Fired when an overlay is selected through the [layer control](#control-layers).
+ // @event overlayremove: LayersControlEvent
+ // Fired when an overlay is deselected through the [layer control](#control-layers).
+ // @namespace Control.Layers
+ var type = obj.overlay ?
+ (e.type === 'add' ? 'overlayadd' : 'overlayremove') :
+ (e.type === 'add' ? 'baselayerchange' : null);
+
+ if (type) {
+ this._map.fire(type, obj);
}
},
- _resetGrid: function () {
- var map = this._map,
- crs = map.options.crs,
- tileSize = this._tileSize = this.getTileSize(),
- tileZoom = this._tileZoom;
+ // 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 bounds = this._map.getPixelWorldBounds(this._tileZoom);
- if (bounds) {
- this._globalTileRange = this._pxBoundsToTileRange(bounds);
- }
+ var radioHtml = '<input type="radio" class="leaflet-control-layers-selector" name="' +
+ name + '"' + (checked ? ' checked="checked"' : '') + '/>';
- this._wrapX = crs.wrapLng && !this.options.noWrap && [
- Math.floor(map.project([0, crs.wrapLng[0]], tileZoom).x / tileSize.x),
- Math.ceil(map.project([0, crs.wrapLng[1]], tileZoom).x / tileSize.y)
- ];
- this._wrapY = crs.wrapLat && !this.options.noWrap && [
- Math.floor(map.project([crs.wrapLat[0], 0], tileZoom).y / tileSize.x),
- Math.ceil(map.project([crs.wrapLat[1], 0], tileZoom).y / tileSize.y)
- ];
+ var radioFragment = document.createElement('div');
+ radioFragment.innerHTML = radioHtml;
+
+ return radioFragment.firstChild;
},
- _onMoveEnd: function () {
- if (!this._map || this._map._animatingZoom) { return; }
+ _addItem: function (obj) {
+ var label = document.createElement('label'),
+ checked = this._map.hasLayer(obj.layer),
+ input;
- this._update();
- },
+ 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_' + stamp(this), checked);
+ }
- _getTiledPixelBounds: function (center) {
- var map = this._map,
- mapZoom = map._animatingZoom ? Math.max(map._animateToZoom, map.getZoom()) : map.getZoom(),
- scale = map.getZoomScale(mapZoom, this._tileZoom),
- pixelCenter = map.project(center, this._tileZoom).floor(),
- halfSize = map.getSize().divideBy(scale * 2);
+ this._layerControlInputs.push(input);
+ input.layerId = stamp(obj.layer);
- return new L.Bounds(pixelCenter.subtract(halfSize), pixelCenter.add(halfSize));
- },
+ on(input, 'click', this._onInputClick, this);
- // Private method to load tiles in the grid's active zoom level according to map bounds
- _update: function (center) {
- var map = this._map;
- if (!map) { return; }
- var zoom = map.getZoom();
+ var name = document.createElement('span');
+ name.innerHTML = ' ' + obj.name;
- if (center === undefined) { center = map.getCenter(); }
- if (this._tileZoom === undefined) { return; } // if out of minzoom/maxzoom
+ // Helps from preventing layer control flicker when checkboxes are disabled
+ // https://github.com/Leaflet/Leaflet/issues/2771
+ var holder = document.createElement('div');
- var pixelBounds = this._getTiledPixelBounds(center),
- tileRange = this._pxBoundsToTileRange(pixelBounds),
- tileCenter = tileRange.getCenter(),
- queue = [],
- margin = this.options.keepBuffer,
- noPruneRange = new L.Bounds(tileRange.getBottomLeft().subtract([margin, -margin]),
- tileRange.getTopRight().add([margin, -margin]));
+ label.appendChild(holder);
+ holder.appendChild(input);
+ holder.appendChild(name);
- for (var key in this._tiles) {
- var c = this._tiles[key].coords;
- if (c.z !== this._tileZoom || !noPruneRange.contains(L.point(c.x, c.y))) {
- this._tiles[key].current = false;
- }
- }
+ var container = obj.overlay ? this._overlaysList : this._baseLayersList;
+ container.appendChild(label);
+
+ this._checkDisabledLayers();
+ return label;
+ },
+
+ _onInputClick: function () {
+ var inputs = this._layerControlInputs,
+ input, layer;
+ var addedLayers = [],
+ removedLayers = [];
- // _update just loads more tiles. If the tile zoom level differs too much
- // from the map's, let _setView reset levels and prune old tiles.
- if (Math.abs(zoom - this._tileZoom) > 1) { this._setView(center, zoom); return; }
+ this._handlingClick = true;
- // create a queue of coordinates to load tiles from
- for (var j = tileRange.min.y; j <= tileRange.max.y; j++) {
- for (var i = tileRange.min.x; i <= tileRange.max.x; i++) {
- var coords = new L.Point(i, j);
- coords.z = this._tileZoom;
+ for (var i = inputs.length - 1; i >= 0; i--) {
+ input = inputs[i];
+ layer = this._getLayer(input.layerId).layer;
- if (!this._isValidTile(coords)) { continue; }
+ if (input.checked) {
+ addedLayers.push(layer);
+ } else if (!input.checked) {
+ removedLayers.push(layer);
+ }
+ }
- var tile = this._tiles[this._tileCoordsToKey(coords)];
- if (tile) {
- tile.current = true;
- } else {
- queue.push(coords);
- }
+ // Bugfix issue 2318: Should remove all old layers before readding new ones
+ for (i = 0; i < removedLayers.length; i++) {
+ if (this._map.hasLayer(removedLayers[i])) {
+ this._map.removeLayer(removedLayers[i]);
+ }
+ }
+ for (i = 0; i < addedLayers.length; i++) {
+ if (!this._map.hasLayer(addedLayers[i])) {
+ this._map.addLayer(addedLayers[i]);
}
}
- // sort tile queue to load tiles in order of their distance to center
- queue.sort(function (a, b) {
- return a.distanceTo(tileCenter) - b.distanceTo(tileCenter);
- });
+ this._handlingClick = false;
- if (queue.length !== 0) {
- // if it's the first batch of tiles to load
- if (!this._loading) {
- this._loading = true;
- // @event loading: Event
- // Fired when the grid layer starts loading tiles.
- this.fire('loading');
- }
+ this._refocusOnMap();
+ },
- // create DOM fragment to append tiles in one batch
- var fragment = document.createDocumentFragment();
+ _checkDisabledLayers: function () {
+ var inputs = this._layerControlInputs,
+ input,
+ layer,
+ zoom = this._map.getZoom();
- for (i = 0; i < queue.length; i++) {
- this._addTile(queue[i], fragment);
- }
+ for (var i = inputs.length - 1; i >= 0; i--) {
+ input = inputs[i];
+ layer = this._getLayer(input.layerId).layer;
+ input.disabled = (layer.options.minZoom !== undefined && zoom < layer.options.minZoom) ||
+ (layer.options.maxZoom !== undefined && zoom > layer.options.maxZoom);
- this._level.el.appendChild(fragment);
}
},
- _isValidTile: function (coords) {
- var crs = this._map.options.crs;
-
- if (!crs.infinite) {
- // don't load tile if it's out of bounds and not wrapped
- var bounds = this._globalTileRange;
- if ((!crs.wrapLng && (coords.x < bounds.min.x || coords.x > bounds.max.x)) ||
- (!crs.wrapLat && (coords.y < bounds.min.y || coords.y > bounds.max.y))) { return false; }
+ _expandIfNotCollapsed: function () {
+ if (this._map && !this.options.collapsed) {
+ this.expand();
}
-
- if (!this.options.bounds) { return true; }
-
- // don't load tile if it doesn't intersect the bounds in options
- var tileBounds = this._tileCoordsToBounds(coords);
- return L.latLngBounds(this.options.bounds).overlaps(tileBounds);
+ return this;
},
- _keyToBounds: function (key) {
- return this._tileCoordsToBounds(this._keyToTileCoords(key));
+ _expand: function () {
+ // Backward compatibility, remove me in 1.1.
+ return this.expand();
},
- // converts tile coordinates to its geographical bounds
- _tileCoordsToBounds: function (coords) {
+ _collapse: function () {
+ // Backward compatibility, remove me in 1.1.
+ return this.collapse();
+ }
- var map = this._map,
- tileSize = this.getTileSize(),
+});
- nwPoint = coords.scaleBy(tileSize),
- sePoint = nwPoint.add(tileSize),
- nw = map.unproject(nwPoint, coords.z),
- se = map.unproject(sePoint, coords.z),
- bounds = new L.LatLngBounds(nw, se);
+// @factory L.control.layers(baselayers?: Object, overlays?: Object, options?: Control.Layers options)
+// Creates a layers control with the given layers. Base layers will be switched with radio buttons, while overlays will be switched with checkboxes. Note that all base layers should be passed in the base layers object, but only one should be added to the map during map instantiation.
+var layers = function (baseLayers, overlays, options) {
+ return new Layers(baseLayers, overlays, options);
+};
- if (!this.options.noWrap) {
- map.wrapLatLngBounds(bounds);
- }
+/*
+ * @class Control.Zoom
+ * @aka L.Control.Zoom
+ * @inherits Control
+ *
+ * A basic zoom control with two buttons (zoom in and zoom out). It is put on the map by default unless you set its [`zoomControl` option](#map-zoomcontrol) to `false`. Extends `Control`.
+ */
- return bounds;
- },
+var Zoom = Control.extend({
+ // @section
+ // @aka Control.Zoom options
+ options: {
+ position: 'topleft',
- // converts tile coordinates to key for the tile cache
- _tileCoordsToKey: function (coords) {
- return coords.x + ':' + coords.y + ':' + coords.z;
- },
+ // @option zoomInText: String = '+'
+ // The text set on the 'zoom in' button.
+ zoomInText: '+',
- // converts tile cache key to coordinates
- _keyToTileCoords: function (key) {
- var k = key.split(':'),
- coords = new L.Point(+k[0], +k[1]);
- coords.z = +k[2];
- return coords;
+ // @option zoomInTitle: String = 'Zoom in'
+ // The title set on the 'zoom in' button.
+ zoomInTitle: 'Zoom in',
+
+ // @option zoomOutText: String = '−'
+ // The text set on the 'zoom out' button.
+ zoomOutText: '−',
+
+ // @option zoomOutTitle: String = 'Zoom out'
+ // The title set on the 'zoom out' button.
+ zoomOutTitle: 'Zoom out'
},
- _removeTile: function (key) {
- var tile = this._tiles[key];
- if (!tile) { return; }
+ onAdd: function (map) {
+ var zoomName = 'leaflet-control-zoom',
+ container = create$1('div', zoomName + ' leaflet-bar'),
+ options = this.options;
- L.DomUtil.remove(tile.el);
+ this._zoomInButton = this._createButton(options.zoomInText, options.zoomInTitle,
+ zoomName + '-in', container, this._zoomIn);
+ this._zoomOutButton = this._createButton(options.zoomOutText, options.zoomOutTitle,
+ zoomName + '-out', container, this._zoomOut);
- delete this._tiles[key];
+ this._updateDisabled();
+ map.on('zoomend zoomlevelschange', this._updateDisabled, this);
- // @event tileunload: TileEvent
- // Fired when a tile is removed (e.g. when a tile goes off the screen).
- this.fire('tileunload', {
- tile: tile.el,
- coords: this._keyToTileCoords(key)
- });
+ return container;
},
- _initTile: function (tile) {
- L.DomUtil.addClass(tile, 'leaflet-tile');
+ onRemove: function (map) {
+ map.off('zoomend zoomlevelschange', this._updateDisabled, this);
+ },
- var tileSize = this.getTileSize();
- tile.style.width = tileSize.x + 'px';
- tile.style.height = tileSize.y + 'px';
+ disable: function () {
+ this._disabled = true;
+ this._updateDisabled();
+ return this;
+ },
- tile.onselectstart = L.Util.falseFn;
- tile.onmousemove = L.Util.falseFn;
+ enable: function () {
+ this._disabled = false;
+ this._updateDisabled();
+ return this;
+ },
- // update opacity on tiles in IE7-8 because of filter inheritance problems
- if (L.Browser.ielt9 && this.options.opacity < 1) {
- L.DomUtil.setOpacity(tile, this.options.opacity);
+ _zoomIn: function (e) {
+ if (!this._disabled && this._map._zoom < this._map.getMaxZoom()) {
+ this._map.zoomIn(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1));
}
+ },
- // without this hack, tiles disappear after zoom on Chrome for Android
- // https://github.com/Leaflet/Leaflet/issues/2078
- if (L.Browser.android && !L.Browser.android23) {
- tile.style.WebkitBackfaceVisibility = 'hidden';
+ _zoomOut: function (e) {
+ if (!this._disabled && this._map._zoom > this._map.getMinZoom()) {
+ this._map.zoomOut(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1));
}
},
- _addTile: function (coords, container) {
- var tilePos = this._getTilePos(coords),
- key = this._tileCoordsToKey(coords);
+ _createButton: function (html, title, className, container, fn) {
+ var link = create$1('a', className, container);
+ link.innerHTML = html;
+ link.href = '#';
+ link.title = title;
- var tile = this.createTile(this._wrapCoords(coords), L.bind(this._tileReady, this, coords));
+ /*
+ * Will force screen readers like VoiceOver to read this as "Zoom in - button"
+ */
+ link.setAttribute('role', 'button');
+ link.setAttribute('aria-label', title);
- this._initTile(tile);
+ disableClickPropagation(link);
+ on(link, 'click', stop);
+ on(link, 'click', fn, this);
+ on(link, 'click', this._refocusOnMap, this);
- // if createTile is defined with a second argument ("done" callback),
- // we know that tile is async and will be ready later; otherwise
- if (this.createTile.length < 2) {
- // mark tile as ready, but delay one frame for opacity animation to happen
- L.Util.requestAnimFrame(L.bind(this._tileReady, this, coords, null, tile));
+ return link;
+ },
+
+ _updateDisabled: function () {
+ var map = this._map,
+ className = 'leaflet-disabled';
+
+ removeClass(this._zoomInButton, className);
+ removeClass(this._zoomOutButton, className);
+
+ if (this._disabled || map._zoom === map.getMinZoom()) {
+ addClass(this._zoomOutButton, className);
+ }
+ if (this._disabled || map._zoom === map.getMaxZoom()) {
+ addClass(this._zoomInButton, className);
}
+ }
+});
+
+// @namespace Map
+// @section Control options
+// @option zoomControl: Boolean = true
+// Whether a [zoom control](#control-zoom) is added to the map by default.
+Map.mergeOptions({
+ zoomControl: true
+});
+
+Map.addInitHook(function () {
+ if (this.options.zoomControl) {
+ // @section Controls
+ // @property zoomControl: Control.Zoom
+ // The default zoom control (only available if the
+ // [`zoomControl` option](#map-zoomcontrol) was `true` when creating the map).
+ this.zoomControl = new Zoom();
+ this.addControl(this.zoomControl);
+ }
+});
+
+// @namespace Control.Zoom
+// @factory L.control.zoom(options: Control.Zoom options)
+// Creates a zoom control
+var zoom = function (options) {
+ return new Zoom(options);
+};
+
+/*
+ * @class Control.Scale
+ * @aka L.Control.Scale
+ * @inherits Control
+ *
+ * A simple scale control that shows the scale of the current center of screen in metric (m/km) and imperial (mi/ft) systems. Extends `Control`.
+ *
+ * @example
+ *
+ * ```js
+ * L.control.scale().addTo(map);
+ * ```
+ */
+
+var Scale = Control.extend({
+ // @section
+ // @aka Control.Scale options
+ options: {
+ position: 'bottomleft',
+
+ // @option maxWidth: Number = 100
+ // Maximum width of the control in pixels. The width is set dynamically to show round values (e.g. 100, 200, 500).
+ maxWidth: 100,
+
+ // @option metric: Boolean = True
+ // Whether to show the metric scale line (m/km).
+ metric: true,
+
+ // @option imperial: Boolean = True
+ // Whether to show the imperial scale line (mi/ft).
+ imperial: true
+
+ // @option updateWhenIdle: Boolean = false
+ // If `true`, the control is updated on [`moveend`](#map-moveend), otherwise it's always up-to-date (updated on [`move`](#map-move)).
+ },
- L.DomUtil.setPosition(tile, tilePos);
+ onAdd: function (map) {
+ var className = 'leaflet-control-scale',
+ container = create$1('div', className),
+ options = this.options;
- // save tile in cache
- this._tiles[key] = {
- el: tile,
- coords: coords,
- current: true
- };
+ this._addScales(options, className + '-line', container);
- container.appendChild(tile);
- // @event tileloadstart: TileEvent
- // Fired when a tile is requested and starts loading.
- this.fire('tileloadstart', {
- tile: tile,
- coords: coords
- });
+ map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
+ map.whenReady(this._update, this);
+
+ return container;
},
- _tileReady: function (coords, err, tile) {
- if (!this._map) { return; }
+ onRemove: function (map) {
+ map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
+ },
- if (err) {
- // @event tileerror: TileErrorEvent
- // Fired when there is an error loading a tile.
- this.fire('tileerror', {
- error: err,
- tile: tile,
- coords: coords
- });
+ _addScales: function (options, className, container) {
+ if (options.metric) {
+ this._mScale = create$1('div', className, container);
+ }
+ if (options.imperial) {
+ this._iScale = create$1('div', className, container);
}
+ },
- var key = this._tileCoordsToKey(coords);
+ _update: function () {
+ var map = this._map,
+ y = map.getSize().y / 2;
- tile = this._tiles[key];
- if (!tile) { return; }
+ var maxMeters = map.distance(
+ map.containerPointToLatLng([0, y]),
+ map.containerPointToLatLng([this.options.maxWidth, y]));
- tile.loaded = +new Date();
- if (this._map._fadeAnimated) {
- L.DomUtil.setOpacity(tile.el, 0);
- L.Util.cancelAnimFrame(this._fadeFrame);
- this._fadeFrame = L.Util.requestAnimFrame(this._updateOpacity, this);
- } else {
- tile.active = true;
- this._pruneTiles();
+ this._updateScales(maxMeters);
+ },
+
+ _updateScales: function (maxMeters) {
+ if (this.options.metric && maxMeters) {
+ this._updateMetric(maxMeters);
+ }
+ if (this.options.imperial && maxMeters) {
+ this._updateImperial(maxMeters);
}
+ },
- if (!err) {
- L.DomUtil.addClass(tile.el, 'leaflet-tile-loaded');
+ _updateMetric: function (maxMeters) {
+ var meters = this._getRoundNum(maxMeters),
+ label = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km';
- // @event tileload: TileEvent
- // Fired when a tile loads.
- this.fire('tileload', {
- tile: tile.el,
- coords: coords
- });
- }
+ this._updateScale(this._mScale, label, meters / maxMeters);
+ },
- if (this._noTilesToLoad()) {
- this._loading = false;
- // @event load: Event
- // Fired when the grid layer loaded all visible tiles.
- this.fire('load');
+ _updateImperial: function (maxMeters) {
+ var maxFeet = maxMeters * 3.2808399,
+ maxMiles, miles, feet;
- if (L.Browser.ielt9 || !this._map._fadeAnimated) {
- L.Util.requestAnimFrame(this._pruneTiles, this);
- } else {
- // Wait a bit more than 0.2 secs (the duration of the tile fade-in)
- // to trigger a pruning.
- setTimeout(L.bind(this._pruneTiles, this), 250);
- }
+ if (maxFeet > 5280) {
+ maxMiles = maxFeet / 5280;
+ miles = this._getRoundNum(maxMiles);
+ this._updateScale(this._iScale, miles + ' mi', miles / maxMiles);
+
+ } else {
+ feet = this._getRoundNum(maxFeet);
+ this._updateScale(this._iScale, feet + ' ft', feet / maxFeet);
}
},
- _getTilePos: function (coords) {
- return coords.scaleBy(this.getTileSize()).subtract(this._level.origin);
+ _updateScale: function (scale, text, ratio) {
+ scale.style.width = Math.round(this.options.maxWidth * ratio) + 'px';
+ scale.innerHTML = text;
},
- _wrapCoords: function (coords) {
- var newCoords = new L.Point(
- this._wrapX ? L.Util.wrapNum(coords.x, this._wrapX) : coords.x,
- this._wrapY ? L.Util.wrapNum(coords.y, this._wrapY) : coords.y);
- newCoords.z = coords.z;
- return newCoords;
- },
+ _getRoundNum: function (num) {
+ var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1),
+ d = num / pow10;
- _pxBoundsToTileRange: function (bounds) {
- var tileSize = this.getTileSize();
- return new L.Bounds(
- bounds.min.unscaleBy(tileSize).floor(),
- bounds.max.unscaleBy(tileSize).ceil().subtract([1, 1]));
- },
+ d = d >= 10 ? 10 :
+ d >= 5 ? 5 :
+ d >= 3 ? 3 :
+ d >= 2 ? 2 : 1;
- _noTilesToLoad: function () {
- for (var key in this._tiles) {
- if (!this._tiles[key].loaded) { return false; }
- }
- return true;
+ return pow10 * d;
}
});
-// @factory L.gridLayer(options?: GridLayer options)
-// Creates a new instance of GridLayer with the supplied options.
-L.gridLayer = function (options) {
- return new L.GridLayer(options);
-};
-
+// @factory L.control.scale(options?: Control.Scale options)
+// Creates an scale control with the given options.
+var scale = function (options) {
+ return new Scale(options);
+};
/*
- * @class TileLayer
- * @inherits GridLayer
- * @aka L.TileLayer
- * Used to load and display tile layers on the map. Extends `GridLayer`.
- *
- * @example
- *
- * ```js
- * L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png?{foo}', {foo: 'bar'}).addTo(map);
- * ```
- *
- * @section URL template
- * @example
- *
- * A string of the following form:
- *
- * ```
- * 'http://{s}.somedomain.com/blabla/{z}/{x}/{y}{r}.png'
- * ```
- *
- * `{s}` means one of the available subdomains (used sequentially to help with browser parallel requests per domain limitation; subdomain values are specified in options; `a`, `b` or `c` by default, can be omitted), `{z}` — zoom level, `{x}` and `{y}` — tile coordinates. `{r}` can be used to add @2x to the URL to load retina tiles.
- *
- * You can use custom keys in the template, which will be [evaluated](#util-template) from TileLayer options, like this:
+ * @class Control.Attribution
+ * @aka L.Control.Attribution
+ * @inherits Control
*
- * ```
- * L.tileLayer('http://{s}.somedomain.com/{foo}/{z}/{x}/{y}.png', {foo: 'bar'});
- * ```
+ * The attribution control allows you to display attribution data in a small text box on a map. It is put on the map by default unless you set its [`attributionControl` option](#map-attributioncontrol) to `false`, and it fetches attribution texts from layers with the [`getAttribution` method](#layer-getattribution) automatically. Extends Control.
*/
-
-L.TileLayer = L.GridLayer.extend({
-
+var Attribution = Control.extend({
// @section
- // @aka TileLayer options
+ // @aka Control.Attribution options
options: {
- // @option minZoom: Number = 0
- // Minimum zoom number.
- minZoom: 0,
+ position: 'bottomright',
- // @option maxZoom: Number = 18
- // Maximum zoom number.
- maxZoom: 18,
+ // @option prefix: String = 'Leaflet'
+ // The HTML text shown before the attributions. Pass `false` to disable.
+ prefix: '<a href="https://leafletjs.com" title="A JS library for interactive maps">Leaflet</a>'
+ },
- // @option maxNativeZoom: Number = null
- // Maximum zoom number the tile source has available. If it is specified,
- // the tiles on all zoom levels higher than `maxNativeZoom` will be loaded
- // from `maxNativeZoom` level and auto-scaled.
- maxNativeZoom: null,
+ initialize: function (options) {
+ setOptions(this, options);
- // @option minNativeZoom: Number = null
- // Minimum zoom number the tile source has available. If it is specified,
- // the tiles on all zoom levels lower than `minNativeZoom` will be loaded
- // from `minNativeZoom` level and auto-scaled.
- minNativeZoom: null,
+ this._attributions = {};
+ },
- // @option subdomains: String|String[] = 'abc'
- // Subdomains of the tile service. Can be passed in the form of one string (where each letter is a subdomain name) or an array of strings.
- subdomains: 'abc',
+ onAdd: function (map) {
+ map.attributionControl = this;
+ this._container = create$1('div', 'leaflet-control-attribution');
+ disableClickPropagation(this._container);
- // @option errorTileUrl: String = ''
- // URL to the tile image to show in place of the tile that failed to load.
- errorTileUrl: '',
+ // TODO ugly, refactor
+ for (var i in map._layers) {
+ if (map._layers[i].getAttribution) {
+ this.addAttribution(map._layers[i].getAttribution());
+ }
+ }
- // @option zoomOffset: Number = 0
- // The zoom number used in tile URLs will be offset with this value.
- zoomOffset: 0,
+ this._update();
- // @option tms: Boolean = false
- // If `true`, inverses Y axis numbering for tiles (turn this on for [TMS](https://en.wikipedia.org/wiki/Tile_Map_Service) services).
- tms: false,
+ return this._container;
+ },
- // @option zoomReverse: Boolean = false
- // If set to true, the zoom number used in tile URLs will be reversed (`maxZoom - zoom` instead of `zoom`)
- zoomReverse: false,
+ // @method setPrefix(prefix: String): this
+ // Sets the text before the attributions.
+ setPrefix: function (prefix) {
+ this.options.prefix = prefix;
+ this._update();
+ return this;
+ },
- // @option detectRetina: Boolean = false
- // If `true` and user is on a retina display, it will request four tiles of half the specified size and a bigger zoom level in place of one to utilize the high resolution.
- detectRetina: false,
+ // @method addAttribution(text: String): this
+ // Adds an attribution text (e.g. `'Vector data © Mapbox'`).
+ addAttribution: function (text) {
+ if (!text) { return this; }
- // @option crossOrigin: Boolean = false
- // If true, all tiles will have their crossOrigin attribute set to ''. This is needed if you want to access tile pixel data.
- crossOrigin: false
- },
+ if (!this._attributions[text]) {
+ this._attributions[text] = 0;
+ }
+ this._attributions[text]++;
- initialize: function (url, options) {
+ this._update();
- this._url = url;
+ return this;
+ },
- options = L.setOptions(this, options);
+ // @method removeAttribution(text: String): this
+ // Removes an attribution text.
+ removeAttribution: function (text) {
+ if (!text) { return this; }
- // detecting retina displays, adjusting tileSize and zoom levels
- if (options.detectRetina && L.Browser.retina && options.maxZoom > 0) {
+ if (this._attributions[text]) {
+ this._attributions[text]--;
+ this._update();
+ }
- options.tileSize = Math.floor(options.tileSize / 2);
+ return this;
+ },
- if (!options.zoomReverse) {
- options.zoomOffset++;
- options.maxZoom--;
- } else {
- options.zoomOffset--;
- options.minZoom++;
- }
+ _update: function () {
+ if (!this._map) { return; }
- options.minZoom = Math.max(0, options.minZoom);
+ var attribs = [];
+
+ for (var i in this._attributions) {
+ if (this._attributions[i]) {
+ attribs.push(i);
+ }
}
- if (typeof options.subdomains === 'string') {
- options.subdomains = options.subdomains.split('');
- }
+ var prefixAndAttribs = [];
- // for https://github.com/Leaflet/Leaflet/issues/137
- if (!L.Browser.android) {
- this.on('tileunload', this._onTileRemove);
+ if (this.options.prefix) {
+ prefixAndAttribs.push(this.options.prefix);
+ }
+ if (attribs.length) {
+ prefixAndAttribs.push(attribs.join(', '));
}
- },
- // @method setUrl(url: String, noRedraw?: Boolean): this
- // Updates the layer's URL template and redraws it (unless `noRedraw` is set to `true`).
- setUrl: function (url, noRedraw) {
- this._url = url;
+ this._container.innerHTML = prefixAndAttribs.join(' | ');
+ }
+});
- if (!noRedraw) {
- this.redraw();
- }
- return this;
- },
+// @namespace Map
+// @section Control options
+// @option attributionControl: Boolean = true
+// Whether a [attribution control](#control-attribution) is added to the map by default.
+Map.mergeOptions({
+ attributionControl: true
+});
- // @method createTile(coords: Object, done?: Function): HTMLElement
- // Called only internally, overrides GridLayer's [`createTile()`](#gridlayer-createtile)
- // to return an `<img>` HTML element with the appropiate image URL given `coords`. The `done`
- // callback is called when the tile has been loaded.
- createTile: function (coords, done) {
- var tile = document.createElement('img');
+Map.addInitHook(function () {
+ if (this.options.attributionControl) {
+ new Attribution().addTo(this);
+ }
+});
- L.DomEvent.on(tile, 'load', L.bind(this._tileOnLoad, this, done, tile));
- L.DomEvent.on(tile, 'error', L.bind(this._tileOnError, this, done, tile));
+// @namespace Control.Attribution
+// @factory L.control.attribution(options: Control.Attribution options)
+// Creates an attribution control.
+var attribution = function (options) {
+ return new Attribution(options);
+};
- if (this.options.crossOrigin) {
- tile.crossOrigin = '';
- }
+Control.Layers = Layers;
+Control.Zoom = Zoom;
+Control.Scale = Scale;
+Control.Attribution = Attribution;
- /*
- Alt tag is set to empty string to keep screen readers from reading URL and for compliance reasons
- http://www.w3.org/TR/WCAG20-TECHS/H67
- */
- tile.alt = '';
+control.layers = layers;
+control.zoom = zoom;
+control.scale = scale;
+control.attribution = attribution;
- /*
- Set role="presentation" to force screen readers to ignore this
- https://www.w3.org/TR/wai-aria/roles#textalternativecomputation
- */
- tile.setAttribute('role', 'presentation');
+/*
+ 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.
+*/
- tile.src = this.getTileUrl(coords);
+// @class Handler
+// @aka L.Handler
+// Abstract class for map interaction handlers
- return tile;
+var Handler = Class.extend({
+ initialize: function (map) {
+ this._map = map;
},
- // @section Extension methods
- // @uninheritable
- // Layers extending `TileLayer` might reimplement the following method.
- // @method getTileUrl(coords: Object): String
- // Called only internally, returns the URL for a tile given its coordinates.
- // Classes extending `TileLayer` can override this function to provide custom tile URL naming schemes.
- getTileUrl: function (coords) {
- var data = {
- r: L.Browser.retina ? '@2x' : '',
- s: this._getSubdomain(coords),
- x: coords.x,
- y: coords.y,
- z: this._getZoomForUrl()
- };
- if (this._map && !this._map.options.crs.infinite) {
- var invertedY = this._globalTileRange.max.y - coords.y;
- if (this.options.tms) {
- data['y'] = invertedY;
- }
- data['-y'] = invertedY;
- }
+ // @method enable(): this
+ // Enables the handler
+ enable: function () {
+ if (this._enabled) { return this; }
- return L.Util.template(this._url, L.extend(data, this.options));
+ this._enabled = true;
+ this.addHooks();
+ return this;
},
- _tileOnLoad: function (done, tile) {
- // For https://github.com/Leaflet/Leaflet/issues/3332
- if (L.Browser.ielt9) {
- setTimeout(L.bind(done, this, null, tile), 0);
- } else {
- done(null, tile);
- }
- },
+ // @method disable(): this
+ // Disables the handler
+ disable: function () {
+ if (!this._enabled) { return this; }
- _tileOnError: function (done, tile, e) {
- var errorUrl = this.options.errorTileUrl;
- if (errorUrl && tile.src !== errorUrl) {
- tile.src = errorUrl;
- }
- done(e, tile);
+ this._enabled = false;
+ this.removeHooks();
+ return this;
},
- getTileSize: function () {
- var map = this._map,
- tileSize = L.GridLayer.prototype.getTileSize.call(this),
- zoom = this._tileZoom + this.options.zoomOffset,
- minNativeZoom = this.options.minNativeZoom,
- maxNativeZoom = this.options.maxNativeZoom;
+ // @method enabled(): Boolean
+ // Returns `true` if the handler is enabled
+ enabled: function () {
+ return !!this._enabled;
+ }
- // decrease tile size when scaling below minNativeZoom
- if (minNativeZoom !== null && zoom < minNativeZoom) {
- return tileSize.divideBy(map.getZoomScale(minNativeZoom, zoom)).round();
- }
+ // @section Extension methods
+ // Classes inheriting from `Handler` must implement the two following methods:
+ // @method addHooks()
+ // Called when the handler is enabled, should add event hooks.
+ // @method removeHooks()
+ // Called when the handler is disabled, should remove the event hooks added previously.
+});
- // increase tile size when scaling above maxNativeZoom
- if (maxNativeZoom !== null && zoom > maxNativeZoom) {
- return tileSize.divideBy(map.getZoomScale(maxNativeZoom, zoom)).round();
- }
+// @section There is static function which can be called without instantiating L.Handler:
+// @function addTo(map: Map, name: String): this
+// Adds a new Handler to the given map with the given name.
+Handler.addTo = function (map, name) {
+ map.addHandler(name, this);
+ return this;
+};
- return tileSize;
- },
+var Mixin = {Events: Events};
- _onTileRemove: function (e) {
- e.tile.onload = null;
- },
+/*
+ * @class Draggable
+ * @aka L.Draggable
+ * @inherits Evented
+ *
+ * A class for making DOM elements draggable (including touch support).
+ * Used internally for map and marker dragging. Only works for elements
+ * that were positioned with [`L.DomUtil.setPosition`](#domutil-setposition).
+ *
+ * @example
+ * ```js
+ * var draggable = new L.Draggable(elementToDrag);
+ * draggable.enable();
+ * ```
+ */
- _getZoomForUrl: function () {
- var zoom = this._tileZoom,
- maxZoom = this.options.maxZoom,
- zoomReverse = this.options.zoomReverse,
- zoomOffset = this.options.zoomOffset,
- minNativeZoom = this.options.minNativeZoom,
- maxNativeZoom = this.options.maxNativeZoom;
+var START = touch ? 'touchstart mousedown' : 'mousedown';
+var END = {
+ mousedown: 'mouseup',
+ touchstart: 'touchend',
+ pointerdown: 'touchend',
+ MSPointerDown: 'touchend'
+};
+var MOVE = {
+ mousedown: 'mousemove',
+ touchstart: 'touchmove',
+ pointerdown: 'touchmove',
+ MSPointerDown: 'touchmove'
+};
- if (zoomReverse) {
- zoom = maxZoom - zoom;
- }
- zoom += zoomOffset;
+var Draggable = Evented.extend({
- if (minNativeZoom !== null && zoom < minNativeZoom) {
- return minNativeZoom;
- }
+ options: {
+ // @section
+ // @aka Draggable options
+ // @option clickTolerance: Number = 3
+ // The max number of pixels a user can shift the mouse pointer during a click
+ // for it to be considered a valid click (as opposed to a mouse drag).
+ clickTolerance: 3
+ },
- if (maxNativeZoom !== null && zoom > maxNativeZoom) {
- return maxNativeZoom;
- }
+ // @constructor L.Draggable(el: HTMLElement, dragHandle?: HTMLElement, preventOutline?: Boolean, options?: Draggable options)
+ // Creates a `Draggable` object for moving `el` when you start dragging the `dragHandle` element (equals `el` itself by default).
+ initialize: function (element, dragStartTarget, preventOutline$$1, options) {
+ setOptions(this, options);
- return zoom;
+ this._element = element;
+ this._dragStartTarget = dragStartTarget || element;
+ this._preventOutline = preventOutline$$1;
},
- _getSubdomain: function (tilePoint) {
- var index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length;
- return this.options.subdomains[index];
- },
+ // @method enable()
+ // Enables the dragging ability
+ enable: function () {
+ if (this._enabled) { return; }
- // stops loading all tiles in the background layer
- _abortLoading: function () {
- var i, tile;
- for (i in this._tiles) {
- if (this._tiles[i].coords.z !== this._tileZoom) {
- tile = this._tiles[i].el;
+ on(this._dragStartTarget, START, this._onDown, this);
- tile.onload = L.Util.falseFn;
- tile.onerror = L.Util.falseFn;
+ this._enabled = true;
+ },
- if (!tile.complete) {
- tile.src = L.Util.emptyImageUrl;
- L.DomUtil.remove(tile);
- }
- }
- }
- }
-});
+ // @method disable()
+ // Disables the dragging ability
+ disable: function () {
+ if (!this._enabled) { return; }
+ // If we're currently dragging this draggable,
+ // disabling it counts as first ending the drag.
+ if (Draggable._dragging === this) {
+ this.finishDrag();
+ }
-// @factory L.tilelayer(urlTemplate: String, options?: TileLayer options)
-// Instantiates a tile layer object given a `URL template` and optionally an options object.
+ off(this._dragStartTarget, START, this._onDown, this);
-L.tileLayer = function (url, options) {
- return new L.TileLayer(url, options);
-};
+ this._enabled = false;
+ this._moved = false;
+ },
+ _onDown: function (e) {
+ // Ignore simulated events, since we handle both touch and
+ // mouse explicitly; otherwise we risk getting duplicates of
+ // touch events, see #4315.
+ // Also ignore the event if disabled; this happens in IE11
+ // under some circumstances, see #3666.
+ if (e._simulated || !this._enabled) { return; }
+ this._moved = false;
-/*
- * @class TileLayer.WMS
- * @inherits TileLayer
- * @aka L.TileLayer.WMS
- * Used to display [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services as tile layers on the map. Extends `TileLayer`.
- *
- * @example
- *
- * ```js
- * var nexrad = L.tileLayer.wms("http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r.cgi", {
- * layers: 'nexrad-n0r-900913',
- * format: 'image/png',
- * transparent: true,
- * attribution: "Weather data © 2012 IEM Nexrad"
- * });
- * ```
- */
+ if (hasClass(this._element, 'leaflet-zoom-anim')) { return; }
-L.TileLayer.WMS = L.TileLayer.extend({
+ if (Draggable._dragging || e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; }
+ Draggable._dragging = this; // Prevent dragging multiple objects at once.
- // @section
- // @aka TileLayer.WMS options
- // If any custom options not documented here are used, they will be sent to the
- // WMS server as extra parameters in each request URL. This can be useful for
- // [non-standard vendor WMS parameters](http://docs.geoserver.org/stable/en/user/services/wms/vendor.html).
- defaultWmsParams: {
- service: 'WMS',
- request: 'GetMap',
+ if (this._preventOutline) {
+ preventOutline(this._element);
+ }
- // @option layers: String = ''
- // **(required)** Comma-separated list of WMS layers to show.
- layers: '',
+ disableImageDrag();
+ disableTextSelection();
- // @option styles: String = ''
- // Comma-separated list of WMS styles.
- styles: '',
+ if (this._moving) { return; }
- // @option format: String = 'image/jpeg'
- // WMS image format (use `'image/png'` for layers with transparency).
- format: 'image/jpeg',
+ // @event down: Event
+ // Fired when a drag is about to start.
+ this.fire('down');
- // @option transparent: Boolean = false
- // If `true`, the WMS service will return images with transparency.
- transparent: false,
+ var first = e.touches ? e.touches[0] : e,
+ sizedParent = getSizedParentNode(this._element);
- // @option version: String = '1.1.1'
- // Version of the WMS service to use
- version: '1.1.1'
- },
+ this._startPoint = new Point(first.clientX, first.clientY);
- options: {
- // @option crs: CRS = null
- // Coordinate Reference System to use for the WMS requests, defaults to
- // map CRS. Don't change this if you're not sure what it means.
- crs: null,
+ // Cache the scale, so that we can continuously compensate for it during drag (_onMove).
+ this._parentScale = getScale(sizedParent);
- // @option uppercase: Boolean = false
- // If `true`, WMS request parameter keys will be uppercase.
- uppercase: false
+ on(document, MOVE[e.type], this._onMove, this);
+ on(document, END[e.type], this._onUp, this);
},
- initialize: function (url, options) {
+ _onMove: function (e) {
+ // Ignore simulated events, since we handle both touch and
+ // mouse explicitly; otherwise we risk getting duplicates of
+ // touch events, see #4315.
+ // Also ignore the event if disabled; this happens in IE11
+ // under some circumstances, see #3666.
+ if (e._simulated || !this._enabled) { return; }
- this._url = url;
+ if (e.touches && e.touches.length > 1) {
+ this._moved = true;
+ return;
+ }
- var wmsParams = L.extend({}, this.defaultWmsParams);
+ var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e),
+ offset = new Point(first.clientX, first.clientY)._subtract(this._startPoint);
- // all keys that are not TileLayer options go to WMS params
- for (var i in options) {
- if (!(i in this.options)) {
- wmsParams[i] = options[i];
- }
- }
+ if (!offset.x && !offset.y) { return; }
+ if (Math.abs(offset.x) + Math.abs(offset.y) < this.options.clickTolerance) { return; }
- options = L.setOptions(this, options);
+ // We assume that the parent container's position, border and scale do not change for the duration of the drag.
+ // Therefore there is no need to account for the position and border (they are eliminated by the subtraction)
+ // and we can use the cached value for the scale.
+ offset.x /= this._parentScale.x;
+ offset.y /= this._parentScale.y;
- wmsParams.width = wmsParams.height = options.tileSize * (options.detectRetina && L.Browser.retina ? 2 : 1);
+ preventDefault(e);
- this.wmsParams = wmsParams;
- },
+ if (!this._moved) {
+ // @event dragstart: Event
+ // Fired when a drag starts
+ this.fire('dragstart');
- onAdd: function (map) {
+ this._moved = true;
+ this._startPos = getPosition(this._element).subtract(offset);
- this._crs = this.options.crs || map.options.crs;
- this._wmsVersion = parseFloat(this.wmsParams.version);
+ addClass(document.body, 'leaflet-dragging');
- var projectionKey = this._wmsVersion >= 1.3 ? 'crs' : 'srs';
- this.wmsParams[projectionKey] = this._crs.code;
+ this._lastTarget = e.target || e.srcElement;
+ // IE and Edge do not give the <use> element, so fetch it
+ // if necessary
+ if ((window.SVGElementInstance) && (this._lastTarget instanceof SVGElementInstance)) {
+ this._lastTarget = this._lastTarget.correspondingUseElement;
+ }
+ addClass(this._lastTarget, 'leaflet-drag-target');
+ }
- L.TileLayer.prototype.onAdd.call(this, map);
- },
+ this._newPos = this._startPos.add(offset);
+ this._moving = true;
- getTileUrl: function (coords) {
+ cancelAnimFrame(this._animRequest);
+ this._lastEvent = e;
+ this._animRequest = requestAnimFrame(this._updatePosition, this, true);
+ },
- var tileBounds = this._tileCoordsToBounds(coords),
- nw = this._crs.project(tileBounds.getNorthWest()),
- se = this._crs.project(tileBounds.getSouthEast()),
+ _updatePosition: function () {
+ var e = {originalEvent: this._lastEvent};
- bbox = (this._wmsVersion >= 1.3 && this._crs === L.CRS.EPSG4326 ?
- [se.y, nw.x, nw.y, se.x] :
- [nw.x, se.y, se.x, nw.y]).join(','),
+ // @event predrag: Event
+ // Fired continuously during dragging *before* each corresponding
+ // update of the element's position.
+ this.fire('predrag', e);
+ setPosition(this._element, this._newPos);
- url = L.TileLayer.prototype.getTileUrl.call(this, coords);
+ // @event drag: Event
+ // Fired continuously during dragging.
+ this.fire('drag', e);
+ },
- return url +
- L.Util.getParamString(this.wmsParams, url, this.options.uppercase) +
- (this.options.uppercase ? '&BBOX=' : '&bbox=') + bbox;
+ _onUp: function (e) {
+ // Ignore simulated events, since we handle both touch and
+ // mouse explicitly; otherwise we risk getting duplicates of
+ // touch events, see #4315.
+ // Also ignore the event if disabled; this happens in IE11
+ // under some circumstances, see #3666.
+ if (e._simulated || !this._enabled) { return; }
+ this.finishDrag();
},
- // @method setParams(params: Object, noRedraw?: Boolean): this
- // Merges an object with the new parameters and re-requests tiles on the current screen (unless `noRedraw` was set to true).
- setParams: function (params, noRedraw) {
+ finishDrag: function () {
+ removeClass(document.body, 'leaflet-dragging');
- L.extend(this.wmsParams, params);
+ if (this._lastTarget) {
+ removeClass(this._lastTarget, 'leaflet-drag-target');
+ this._lastTarget = null;
+ }
- if (!noRedraw) {
- this.redraw();
+ for (var i in MOVE) {
+ off(document, MOVE[i], this._onMove, this);
+ off(document, END[i], this._onUp, this);
}
- return this;
- }
-});
+ enableImageDrag();
+ enableTextSelection();
+ if (this._moved && this._moving) {
+ // ensure drag is not fired after dragend
+ cancelAnimFrame(this._animRequest);
-// @factory L.tileLayer.wms(baseUrl: String, options: TileLayer.WMS options)
-// Instantiates a WMS tile layer object given a base URL of the WMS service and a WMS parameters/options object.
-L.tileLayer.wms = function (url, options) {
- return new L.TileLayer.WMS(url, options);
-};
+ // @event dragend: DragEndEvent
+ // Fired when the drag ends.
+ this.fire('dragend', {
+ distance: this._newPos.distanceTo(this._startPos)
+ });
+ }
+ this._moving = false;
+ Draggable._dragging = false;
+ }
+});
/*
- * @class ImageOverlay
- * @aka L.ImageOverlay
- * @inherits Interactive layer
- *
- * Used to load and display a single image over specific bounds of the map. Extends `Layer`.
- *
- * @example
+ * @namespace LineUtil
*
- * ```js
- * var imageUrl = 'http://www.lib.utexas.edu/maps/historical/newark_nj_1922.jpg',
- * imageBounds = [[40.712216, -74.22655], [40.773941, -74.12544]];
- * L.imageOverlay(imageUrl, imageBounds).addTo(map);
- * ```
+ * Various utility functions for polyline points processing, used by Leaflet internally to make polylines lightning-fast.
*/
-L.ImageOverlay = L.Layer.extend({
+// Simplify polyline with vertex reduction and Douglas-Peucker simplification.
+// Improves rendering performance dramatically by lessening the number of points to draw.
+
+// @function simplify(points: Point[], tolerance: Number): Point[]
+// Dramatically reduces the number of points in a polyline while retaining
+// its shape and returns a new array of simplified points, using the
+// [Douglas-Peucker algorithm](http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm).
+// Used for a huge performance boost when processing/displaying Leaflet polylines for
+// each zoom level and also reducing visual noise. tolerance affects the amount of
+// simplification (lesser value means higher quality but slower and with more points).
+// Also released as a separated micro-library [Simplify.js](http://mourner.github.com/simplify-js/).
+function simplify(points, tolerance) {
+ if (!tolerance || !points.length) {
+ return points.slice();
+ }
- // @section
- // @aka ImageOverlay options
- options: {
- // @option opacity: Number = 1.0
- // The opacity of the image overlay.
- opacity: 1,
+ var sqTolerance = tolerance * tolerance;
- // @option alt: String = ''
- // Text for the `alt` attribute of the image (useful for accessibility).
- alt: '',
+ // stage 1: vertex reduction
+ points = _reducePoints(points, sqTolerance);
- // @option interactive: Boolean = false
- // If `true`, the image overlay will emit [mouse events](#interactive-layer) when clicked or hovered.
- interactive: false,
+ // stage 2: Douglas-Peucker simplification
+ points = _simplifyDP(points, sqTolerance);
- // @option crossOrigin: Boolean = false
- // If true, the image will have its crossOrigin attribute set to ''. This is needed if you want to access image pixel data.
- crossOrigin: false
- },
+ return points;
+}
- initialize: function (url, bounds, options) { // (String, LatLngBounds, Object)
- this._url = url;
- this._bounds = L.latLngBounds(bounds);
+// @function pointToSegmentDistance(p: Point, p1: Point, p2: Point): Number
+// Returns the distance between point `p` and segment `p1` to `p2`.
+function pointToSegmentDistance(p, p1, p2) {
+ return Math.sqrt(_sqClosestPointOnSegment(p, p1, p2, true));
+}
- L.setOptions(this, options);
- },
+// @function closestPointOnSegment(p: Point, p1: Point, p2: Point): Number
+// Returns the closest point from a point `p` on a segment `p1` to `p2`.
+function closestPointOnSegment(p, p1, p2) {
+ return _sqClosestPointOnSegment(p, p1, p2);
+}
- onAdd: function () {
- if (!this._image) {
- this._initImage();
+// Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm
+function _simplifyDP(points, sqTolerance) {
- if (this.options.opacity < 1) {
- this._updateOpacity();
- }
- }
+ var len = points.length,
+ ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array,
+ markers = new ArrayConstructor(len);
- if (this.options.interactive) {
- L.DomUtil.addClass(this._image, 'leaflet-interactive');
- this.addInteractiveTarget(this._image);
- }
+ markers[0] = markers[len - 1] = 1;
- this.getPane().appendChild(this._image);
- this._reset();
- },
+ _simplifyDPStep(points, markers, sqTolerance, 0, len - 1);
- onRemove: function () {
- L.DomUtil.remove(this._image);
- if (this.options.interactive) {
- this.removeInteractiveTarget(this._image);
+ var i,
+ newPoints = [];
+
+ for (i = 0; i < len; i++) {
+ if (markers[i]) {
+ newPoints.push(points[i]);
}
- },
+ }
- // @method setOpacity(opacity: Number): this
- // Sets the opacity of the overlay.
- setOpacity: function (opacity) {
- this.options.opacity = opacity;
+ return newPoints;
+}
- if (this._image) {
- this._updateOpacity();
+function _simplifyDPStep(points, markers, sqTolerance, first, last) {
+
+ var maxSqDist = 0,
+ index, i, sqDist;
+
+ for (i = first + 1; i <= last - 1; i++) {
+ sqDist = _sqClosestPointOnSegment(points[i], points[first], points[last], true);
+
+ if (sqDist > maxSqDist) {
+ index = i;
+ maxSqDist = sqDist;
}
- return this;
- },
+ }
- setStyle: function (styleOpts) {
- if (styleOpts.opacity) {
- this.setOpacity(styleOpts.opacity);
+ if (maxSqDist > sqTolerance) {
+ markers[index] = 1;
+
+ _simplifyDPStep(points, markers, sqTolerance, first, index);
+ _simplifyDPStep(points, markers, sqTolerance, index, last);
+ }
+}
+
+// reduce points that are too close to each other to a single point
+function _reducePoints(points, sqTolerance) {
+ var reducedPoints = [points[0]];
+
+ for (var i = 1, prev = 0, len = points.length; i < len; i++) {
+ if (_sqDist(points[i], points[prev]) > sqTolerance) {
+ reducedPoints.push(points[i]);
+ prev = i;
}
- return this;
- },
+ }
+ if (prev < len - 1) {
+ reducedPoints.push(points[len - 1]);
+ }
+ return reducedPoints;
+}
- // @method bringToFront(): this
- // Brings the layer to the top of all overlays.
- bringToFront: function () {
- if (this._map) {
- L.DomUtil.toFront(this._image);
+var _lastCode;
+
+// @function clipSegment(a: Point, b: Point, bounds: Bounds, useLastCode?: Boolean, round?: Boolean): Point[]|Boolean
+// Clips the segment a to b by rectangular bounds with the
+// [Cohen-Sutherland algorithm](https://en.wikipedia.org/wiki/Cohen%E2%80%93Sutherland_algorithm)
+// (modifying the segment points directly!). Used by Leaflet to only show polyline
+// points that are on the screen or near, increasing performance.
+function clipSegment(a, b, bounds, useLastCode, round) {
+ var codeA = useLastCode ? _lastCode : _getBitCode(a, bounds),
+ codeB = _getBitCode(b, bounds),
+
+ codeOut, p, newCode;
+
+ // save 2nd code to avoid calculating it on the next segment
+ _lastCode = codeB;
+
+ while (true) {
+ // if a,b is inside the clip window (trivial accept)
+ if (!(codeA | codeB)) {
+ return [a, b];
}
- return this;
- },
- // @method bringToBack(): this
- // Brings the layer to the bottom of all overlays.
- bringToBack: function () {
- if (this._map) {
- L.DomUtil.toBack(this._image);
+ // if a,b is outside the clip window (trivial reject)
+ if (codeA & codeB) {
+ return false;
}
- return this;
- },
- // @method setUrl(url: String): this
- // Changes the URL of the image.
- setUrl: function (url) {
- this._url = url;
+ // other cases
+ codeOut = codeA || codeB;
+ p = _getEdgeIntersection(a, b, codeOut, bounds, round);
+ newCode = _getBitCode(p, bounds);
- if (this._image) {
- this._image.src = url;
+ if (codeOut === codeA) {
+ a = p;
+ codeA = newCode;
+ } else {
+ b = p;
+ codeB = newCode;
}
- return this;
- },
+ }
+}
- // @method setBounds(bounds: LatLngBounds): this
- // Update the bounds that this ImageOverlay covers
- setBounds: function (bounds) {
- this._bounds = bounds;
+function _getEdgeIntersection(a, b, code, bounds, round) {
+ var dx = b.x - a.x,
+ dy = b.y - a.y,
+ min = bounds.min,
+ max = bounds.max,
+ x, y;
- if (this._map) {
- this._reset();
- }
- return this;
- },
+ if (code & 8) { // top
+ x = a.x + dx * (max.y - a.y) / dy;
+ y = max.y;
- getEvents: function () {
- var events = {
- zoom: this._reset,
- viewreset: this._reset
- };
+ } else if (code & 4) { // bottom
+ x = a.x + dx * (min.y - a.y) / dy;
+ y = min.y;
- if (this._zoomAnimated) {
- events.zoomanim = this._animateZoom;
+ } else if (code & 2) { // right
+ x = max.x;
+ y = a.y + dy * (max.x - a.x) / dx;
+
+ } else if (code & 1) { // left
+ x = min.x;
+ y = a.y + dy * (min.x - a.x) / dx;
+ }
+
+ return new Point(x, y, round);
+}
+
+function _getBitCode(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)
+function _sqDist(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
+function _sqClosestPointOnSegment(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;
}
+ }
- return events;
- },
+ dx = p.x - x;
+ dy = p.y - y;
- // @method getBounds(): LatLngBounds
- // Get the bounds that this ImageOverlay covers
- getBounds: function () {
- return this._bounds;
- },
+ return sqDist ? dx * dx + dy * dy : new Point(x, y);
+}
- // @method getElement(): HTMLElement
- // Get the img element that represents the ImageOverlay on the map
- getElement: function () {
- return this._image;
- },
- _initImage: function () {
- var img = this._image = L.DomUtil.create('img',
- 'leaflet-image-layer ' + (this._zoomAnimated ? 'leaflet-zoom-animated' : ''));
+// @function isFlat(latlngs: LatLng[]): Boolean
+// Returns true if `latlngs` is a flat array, false is nested.
+function isFlat(latlngs) {
+ return !isArray(latlngs[0]) || (typeof latlngs[0][0] !== 'object' && typeof latlngs[0][0] !== 'undefined');
+}
- img.onselectstart = L.Util.falseFn;
- img.onmousemove = L.Util.falseFn;
+function _flat(latlngs) {
+ console.warn('Deprecated use of _flat, please use L.LineUtil.isFlat instead.');
+ return isFlat(latlngs);
+}
- img.onload = L.bind(this.fire, this, 'load');
- if (this.options.crossOrigin) {
- img.crossOrigin = '';
- }
+var LineUtil = (Object.freeze || Object)({
+ simplify: simplify,
+ pointToSegmentDistance: pointToSegmentDistance,
+ closestPointOnSegment: closestPointOnSegment,
+ clipSegment: clipSegment,
+ _getEdgeIntersection: _getEdgeIntersection,
+ _getBitCode: _getBitCode,
+ _sqClosestPointOnSegment: _sqClosestPointOnSegment,
+ isFlat: isFlat,
+ _flat: _flat
+});
- img.src = this._url;
- img.alt = this.options.alt;
- },
+/*
+ * @namespace PolyUtil
+ * Various utility functions for polygon geometries.
+ */
- _animateZoom: function (e) {
- var scale = this._map.getZoomScale(e.zoom),
- offset = this._map._latLngBoundsToNewLayerBounds(this._bounds, e.zoom, e.center).min;
+/* @function clipPolygon(points: Point[], bounds: Bounds, round?: Boolean): Point[]
+ * Clips the polygon geometry defined by the given `points` by the given bounds (using the [Sutherland-Hodgman algorithm](https://en.wikipedia.org/wiki/Sutherland%E2%80%93Hodgman_algorithm)).
+ * Used by Leaflet to only show polygon points that are on the screen or near, increasing
+ * performance. Note that polygon points needs different algorithm for clipping
+ * than polyline, so there's a separate method for it.
+ */
+function clipPolygon(points, bounds, round) {
+ var clippedPoints,
+ edges = [1, 4, 2, 8],
+ i, j, k,
+ a, b,
+ len, edge, p;
- L.DomUtil.setTransform(this._image, offset, scale);
- },
+ for (i = 0, len = points.length; i < len; i++) {
+ points[i]._code = _getBitCode(points[i], bounds);
+ }
- _reset: function () {
- var image = this._image,
- bounds = new L.Bounds(
- this._map.latLngToLayerPoint(this._bounds.getNorthWest()),
- this._map.latLngToLayerPoint(this._bounds.getSouthEast())),
- size = bounds.getSize();
+ // for each edge (left, bottom, right, top)
+ for (k = 0; k < 4; k++) {
+ edge = edges[k];
+ clippedPoints = [];
- L.DomUtil.setPosition(image, bounds.min);
+ for (i = 0, len = points.length, j = len - 1; i < len; j = i++) {
+ a = points[i];
+ b = points[j];
- image.style.width = size.x + 'px';
- image.style.height = size.y + 'px';
- },
+ // 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 = _getEdgeIntersection(b, a, edge, bounds, round);
+ p._code = _getBitCode(p, bounds);
+ clippedPoints.push(p);
+ }
+ clippedPoints.push(a);
- _updateOpacity: function () {
- L.DomUtil.setOpacity(this._image, this.options.opacity);
+ // else if b is inside the clip window (a->b enters the screen)
+ } else if (!(b._code & edge)) {
+ p = _getEdgeIntersection(b, a, edge, bounds, round);
+ p._code = _getBitCode(p, bounds);
+ clippedPoints.push(p);
+ }
+ }
+ points = clippedPoints;
}
-});
-// @factory L.imageOverlay(imageUrl: String, bounds: LatLngBounds, options?: ImageOverlay options)
-// Instantiates an image overlay object given the URL of the image and the
-// geographical bounds it is tied to.
-L.imageOverlay = function (url, bounds, options) {
- return new L.ImageOverlay(url, bounds, options);
-};
+ return points;
+}
+var PolyUtil = (Object.freeze || Object)({
+ clipPolygon: clipPolygon
+});
/*
- * @class Icon
- * @aka L.Icon
- * @inherits Layer
- *
- * Represents an icon to provide when creating a marker.
- *
- * @example
- *
- * ```js
- * var myIcon = L.icon({
- * iconUrl: 'my-icon.png',
- * iconRetinaUrl: 'my-icon@2x.png',
- * iconSize: [38, 95],
- * iconAnchor: [22, 94],
- * popupAnchor: [-3, -76],
- * shadowUrl: 'my-icon-shadow.png',
- * shadowRetinaUrl: 'my-icon-shadow@2x.png',
- * shadowSize: [68, 95],
- * shadowAnchor: [22, 94]
- * });
- *
- * L.marker([50.505, 30.57], {icon: myIcon}).addTo(map);
- * ```
+ * @namespace Projection
+ * @section
+ * Leaflet comes with a set of already defined Projections out of the box:
*
- * `L.Icon.Default` extends `L.Icon` and is the blue icon Leaflet uses for markers by default.
+ * @projection L.Projection.LonLat
*
+ * Equirectangular, or Plate Carree projection — the most simple projection,
+ * mostly used by GIS enthusiasts. Directly maps `x` as longitude, and `y` as
+ * latitude. Also suitable for flat worlds, e.g. game maps. Used by the
+ * `EPSG:4326` and `Simple` CRS.
*/
-L.Icon = L.Class.extend({
-
- /* @section
- * @aka Icon options
- *
- * @option iconUrl: String = null
- * **(required)** The URL to the icon image (absolute or relative to your script path).
- *
- * @option iconRetinaUrl: String = null
- * The URL to a retina sized version of the icon image (absolute or relative to your
- * script path). Used for Retina screen devices.
- *
- * @option iconSize: Point = null
- * Size of the icon image in pixels.
- *
- * @option iconAnchor: Point = null
- * The coordinates of the "tip" of the icon (relative to its top left corner). The icon
- * will be aligned so that this point is at the marker's geographical location. Centered
- * by default if size is specified, also can be set in CSS with negative margins.
- *
- * @option popupAnchor: Point = null
- * The coordinates of the point from which popups will "open", relative to the icon anchor.
- *
- * @option shadowUrl: String = null
- * The URL to the icon shadow image. If not specified, no shadow image will be created.
- *
- * @option shadowRetinaUrl: String = null
- *
- * @option shadowSize: Point = null
- * Size of the shadow image in pixels.
- *
- * @option shadowAnchor: Point = null
- * The coordinates of the "tip" of the shadow (relative to its top left corner) (the same
- * as iconAnchor if not specified).
- *
- * @option className: String = ''
- * A custom class name to assign to both icon and shadow images. Empty by default.
- */
-
- initialize: function (options) {
- L.setOptions(this, options);
+var LonLat = {
+ project: function (latlng) {
+ return new Point(latlng.lng, latlng.lat);
},
- // @method createIcon(oldIcon?: HTMLElement): HTMLElement
- // Called internally when the icon has to be shown, returns a `<img>` HTML element
- // styled according to the options.
- createIcon: function (oldIcon) {
- return this._createIcon('icon', oldIcon);
+ unproject: function (point) {
+ return new LatLng(point.y, point.x);
},
- // @method createShadow(oldIcon?: HTMLElement): HTMLElement
- // As `createIcon`, but for the shadow beneath it.
- createShadow: function (oldIcon) {
- return this._createIcon('shadow', oldIcon);
- },
+ bounds: new Bounds([-180, -90], [180, 90])
+};
- _createIcon: function (name, oldIcon) {
- var src = this._getIconUrl(name);
+/*
+ * @namespace Projection
+ * @projection L.Projection.Mercator
+ *
+ * Elliptical Mercator projection — more complex than Spherical Mercator. Assumes that Earth is an ellipsoid. Used by the EPSG:3395 CRS.
+ */
- if (!src) {
- if (name === 'icon') {
- throw new Error('iconUrl not set in Icon options (see the docs).');
- }
- return null;
- }
+var Mercator = {
+ R: 6378137,
+ R_MINOR: 6356752.314245179,
- var img = this._createImg(src, oldIcon && oldIcon.tagName === 'IMG' ? oldIcon : null);
- this._setIconStyles(img, name);
+ bounds: new Bounds([-20037508.34279, -15496570.73972], [20037508.34279, 18764656.23138]),
- return img;
+ project: function (latlng) {
+ var d = Math.PI / 180,
+ r = this.R,
+ y = latlng.lat * d,
+ tmp = this.R_MINOR / r,
+ e = Math.sqrt(1 - tmp * tmp),
+ con = e * Math.sin(y);
+
+ var ts = Math.tan(Math.PI / 4 - y / 2) / Math.pow((1 - con) / (1 + con), e / 2);
+ y = -r * Math.log(Math.max(ts, 1E-10));
+
+ return new Point(latlng.lng * d * r, y);
},
- _setIconStyles: function (img, name) {
- var options = this.options;
- var sizeOption = options[name + 'Size'];
+ unproject: function (point) {
+ var d = 180 / Math.PI,
+ r = this.R,
+ tmp = this.R_MINOR / r,
+ e = Math.sqrt(1 - tmp * tmp),
+ ts = Math.exp(-point.y / r),
+ phi = Math.PI / 2 - 2 * Math.atan(ts);
- if (typeof sizeOption === 'number') {
- sizeOption = [sizeOption, sizeOption];
+ for (var i = 0, dphi = 0.1, con; i < 15 && Math.abs(dphi) > 1e-7; i++) {
+ con = e * Math.sin(phi);
+ con = Math.pow((1 - con) / (1 + con), e / 2);
+ dphi = Math.PI / 2 - 2 * Math.atan(ts * con) - phi;
+ phi += dphi;
}
- var size = L.point(sizeOption),
- anchor = L.point(name === 'shadow' && options.shadowAnchor || options.iconAnchor ||
- size && size.divideBy(2, true));
+ return new LatLng(phi * d, point.x * d / r);
+ }
+};
- img.className = 'leaflet-marker-' + name + ' ' + (options.className || '');
+/*
+ * @class Projection
- if (anchor) {
- img.style.marginLeft = (-anchor.x) + 'px';
- img.style.marginTop = (-anchor.y) + 'px';
- }
+ * An object with methods for projecting geographical coordinates of the world onto
+ * a flat surface (and back). See [Map projection](http://en.wikipedia.org/wiki/Map_projection).
- if (size) {
- img.style.width = size.x + 'px';
- img.style.height = size.y + 'px';
- }
- },
+ * @property bounds: Bounds
+ * The bounds (specified in CRS units) where the projection is valid
- _createImg: function (src, el) {
- el = el || document.createElement('img');
- el.src = src;
- return el;
- },
+ * @method project(latlng: LatLng): Point
+ * Projects geographical coordinates into a 2D point.
+ * Only accepts actual `L.LatLng` instances, not arrays.
- _getIconUrl: function (name) {
- return L.Browser.retina && this.options[name + 'RetinaUrl'] || this.options[name + 'Url'];
- }
-});
+ * @method unproject(point: Point): LatLng
+ * The inverse of `project`. Projects a 2D point into a geographical location.
+ * Only accepts actual `L.Point` instances, not arrays.
+ * Note that the projection instances do not inherit from Leafet's `Class` object,
+ * and can't be instantiated. Also, new classes can't inherit from them,
+ * and methods can't be added to them with the `include` function.
-// @factory L.icon(options: Icon options)
-// Creates an icon instance with the given options.
-L.icon = function (options) {
- return new L.Icon(options);
-};
+ */
+
+var index = (Object.freeze || Object)({
+ LonLat: LonLat,
+ Mercator: Mercator,
+ SphericalMercator: SphericalMercator
+});
+
/*
- * @miniclass Icon.Default (Icon)
- * @aka L.Icon.Default
- * @section
+ * @namespace CRS
+ * @crs L.CRS.EPSG3395
*
- * A trivial subclass of `Icon`, represents the icon to use in `Marker`s when
- * no icon is specified. Points to the blue marker image distributed with Leaflet
- * releases.
+ * Rarely used by some commercial tile providers. Uses Elliptical Mercator projection.
+ */
+var EPSG3395 = extend({}, Earth, {
+ code: 'EPSG:3395',
+ projection: Mercator,
+
+ transformation: (function () {
+ var scale = 0.5 / (Math.PI * Mercator.R);
+ return toTransformation(scale, 0.5, -scale, 0.5);
+ }())
+});
+
+/*
+ * @namespace CRS
+ * @crs L.CRS.EPSG4326
*
- * In order to customize the default icon, just change the properties of `L.Icon.Default.prototype.options`
- * (which is a set of `Icon options`).
+ * A common CRS among GIS enthusiasts. Uses simple Equirectangular projection.
*
- * If you want to _completely_ replace the default icon, override the
- * `L.Marker.prototype.options.icon` with your own icon instead.
+ * Leaflet 1.0.x complies with the [TMS coordinate scheme for EPSG:4326](https://wiki.osgeo.org/wiki/Tile_Map_Service_Specification#global-geodetic),
+ * which is a breaking change from 0.7.x behaviour. If you are using a `TileLayer`
+ * with this CRS, ensure that there are two 256x256 pixel tiles covering the
+ * whole earth at zoom level zero, and that the tile coordinate origin is (-180,+90),
+ * or (-180,-90) for `TileLayer`s with [the `tms` option](#tilelayer-tms) set.
+ */
+
+var EPSG4326 = extend({}, Earth, {
+ code: 'EPSG:4326',
+ projection: LonLat,
+ transformation: toTransformation(1 / 180, 1, -1 / 180, 0.5)
+});
+
+/*
+ * @namespace CRS
+ * @crs L.CRS.Simple
+ *
+ * A simple CRS that maps longitude and latitude into `x` and `y` directly.
+ * May be used for maps of flat surfaces (e.g. game maps). Note that the `y`
+ * axis should still be inverted (going from bottom to top). `distance()` returns
+ * simple euclidean distance.
*/
-L.Icon.Default = L.Icon.extend({
+var Simple = extend({}, CRS, {
+ projection: LonLat,
+ transformation: toTransformation(1, 0, -1, 0),
- options: {
- iconUrl: 'marker-icon.png',
- iconRetinaUrl: 'marker-icon-2x.png',
- shadowUrl: 'marker-shadow.png',
- iconSize: [25, 41],
- iconAnchor: [12, 41],
- popupAnchor: [1, -34],
- tooltipAnchor: [16, -28],
- shadowSize: [41, 41]
+ scale: function (zoom) {
+ return Math.pow(2, zoom);
},
- _getIconUrl: function (name) {
- if (!L.Icon.Default.imagePath) { // Deprecated, backwards-compatibility only
- L.Icon.Default.imagePath = this._detectIconPath();
- }
-
- // @option imagePath: String
- // `L.Icon.Default` will try to auto-detect the absolute location of the
- // blue icon images. If you are placing these images in a non-standard
- // way, set this option to point to the right absolute path.
- return (this.options.imagePath || L.Icon.Default.imagePath) + L.Icon.prototype._getIconUrl.call(this, name);
+ zoom: function (scale) {
+ return Math.log(scale) / Math.LN2;
},
- _detectIconPath: function () {
- var el = L.DomUtil.create('div', 'leaflet-default-icon-path', document.body);
- var path = L.DomUtil.getStyle(el, 'background-image') ||
- L.DomUtil.getStyle(el, 'backgroundImage'); // IE8
+ distance: function (latlng1, latlng2) {
+ var dx = latlng2.lng - latlng1.lng,
+ dy = latlng2.lat - latlng1.lat;
- document.body.removeChild(el);
+ return Math.sqrt(dx * dx + dy * dy);
+ },
- return path.indexOf('url') === 0 ?
- path.replace(/^url\([\"\']?/, '').replace(/marker-icon\.png[\"\']?\)$/, '') : '';
- }
+ infinite: true
});
-
+CRS.Earth = Earth;
+CRS.EPSG3395 = EPSG3395;
+CRS.EPSG3857 = EPSG3857;
+CRS.EPSG900913 = EPSG900913;
+CRS.EPSG4326 = EPSG4326;
+CRS.Simple = Simple;
/*
- * @class Marker
- * @inherits Interactive layer
- * @aka L.Marker
- * L.Marker is used to display clickable/draggable icons on the map. Extends `Layer`.
+ * @class Layer
+ * @inherits Evented
+ * @aka L.Layer
+ * @aka ILayer
+ *
+ * A set of methods from the Layer base class that all Leaflet layers use.
+ * Inherits all methods, options and events from `L.Evented`.
*
* @example
*
* ```js
- * L.marker([50.5, 30.5]).addTo(map);
+ * var layer = L.marker(latlng).addTo(map);
+ * layer.addTo(map);
+ * layer.remove();
* ```
+ *
+ * @event add: Event
+ * Fired after the layer is added to a map
+ *
+ * @event remove: Event
+ * Fired after the layer is removed from a map
*/
-L.Marker = L.Layer.extend({
-
- // @section
- // @aka Marker options
- options: {
- // @option icon: Icon = *
- // Icon class to use for rendering the marker. See [Icon documentation](#L.Icon) for details on how to customize the marker icon. If not specified, a new `L.Icon.Default` is used.
- icon: new L.Icon.Default(),
- // Option inherited from "Interactive layer" abstract class
- interactive: true,
+var Layer = Evented.extend({
- // @option draggable: Boolean = false
- // Whether the marker is draggable with mouse/touch or not.
- draggable: false,
+ // Classes extending `L.Layer` will inherit the following options:
+ options: {
+ // @option pane: String = 'overlayPane'
+ // By default the layer will be added to the map's [overlay pane](#map-overlaypane). Overriding this option will cause the layer to be placed on another pane by default.
+ pane: 'overlayPane',
- // @option keyboard: Boolean = true
- // Whether the marker can be tabbed to with a keyboard and clicked by pressing enter.
- keyboard: true,
+ // @option attribution: String = null
+ // String to be shown in the attribution control, e.g. "© OpenStreetMap contributors". It describes the layer data and is often a legal obligation towards copyright holders and tile providers.
+ attribution: null,
- // @option title: String = ''
- // Text for the browser tooltip that appear on marker hover (no tooltip by default).
- title: '',
+ bubblingMouseEvents: true
+ },
- // @option alt: String = ''
- // Text for the `alt` attribute of the icon image (useful for accessibility).
- alt: '',
+ /* @section
+ * Classes extending `L.Layer` will inherit the following methods:
+ *
+ * @method addTo(map: Map|LayerGroup): this
+ * Adds the layer to the given map or layer group.
+ */
+ addTo: function (map) {
+ map.addLayer(this);
+ return this;
+ },
- // @option zIndexOffset: Number = 0
- // By default, marker images zIndex is set automatically based on its latitude. Use this option if you want to put the marker on top of all others (or below), specifying a high value like `1000` (or high negative value, respectively).
- zIndexOffset: 0,
+ // @method remove: this
+ // Removes the layer from the map it is currently active on.
+ remove: function () {
+ return this.removeFrom(this._map || this._mapToAdd);
+ },
- // @option opacity: Number = 1.0
- // The opacity of the marker.
- opacity: 1,
+ // @method removeFrom(map: Map): this
+ // Removes the layer from the given map
+ removeFrom: function (obj) {
+ if (obj) {
+ obj.removeLayer(this);
+ }
+ return this;
+ },
- // @option riseOnHover: Boolean = false
- // If `true`, the marker will get on top of others when you hover the mouse over it.
- riseOnHover: false,
+ // @method getPane(name? : String): HTMLElement
+ // Returns the `HTMLElement` representing the named pane on the map. If `name` is omitted, returns the pane for this layer.
+ getPane: function (name) {
+ return this._map.getPane(name ? (this.options[name] || name) : this.options.pane);
+ },
- // @option riseOffset: Number = 250
- // The z-index offset used for the `riseOnHover` feature.
- riseOffset: 250,
+ addInteractiveTarget: function (targetEl) {
+ this._map._targets[stamp(targetEl)] = this;
+ return this;
+ },
- // @option pane: String = 'markerPane'
- // `Map pane` where the markers icon will be added.
- pane: 'markerPane',
+ removeInteractiveTarget: function (targetEl) {
+ delete this._map._targets[stamp(targetEl)];
+ return this;
+ },
- // FIXME: shadowPane is no longer a valid option
- nonBubblingEvents: ['click', 'dblclick', 'mouseover', 'mouseout', 'contextmenu']
+ // @method getAttribution: String
+ // Used by the `attribution control`, returns the [attribution option](#gridlayer-attribution).
+ getAttribution: function () {
+ return this.options.attribution;
},
- /* @section
- *
- * In addition to [shared layer methods](#Layer) like `addTo()` and `remove()` and [popup methods](#Popup) like bindPopup() you can also use the following methods:
- */
+ _layerAdd: function (e) {
+ var map = e.target;
- initialize: function (latlng, options) {
- L.setOptions(this, options);
- this._latlng = L.latLng(latlng);
- },
+ // check in case layer gets added and then removed before the map is ready
+ if (!map.hasLayer(this)) { return; }
- onAdd: function (map) {
- this._zoomAnimated = this._zoomAnimated && map.options.markerZoomAnimation;
+ this._map = map;
+ this._zoomAnimated = map._zoomAnimated;
- if (this._zoomAnimated) {
- map.on('zoomanim', this._animateZoom, this);
+ if (this.getEvents) {
+ var events = this.getEvents();
+ map.on(events, this);
+ this.once('remove', function () {
+ map.off(events, this);
+ }, this);
}
- this._initIcon();
- this.update();
- },
+ this.onAdd(map);
- onRemove: function (map) {
- if (this.dragging && this.dragging.enabled()) {
- this.options.draggable = true;
- this.dragging.removeHooks();
+ if (this.getAttribution && map.attributionControl) {
+ map.attributionControl.addAttribution(this.getAttribution());
}
- if (this._zoomAnimated) {
- map.off('zoomanim', this._animateZoom, this);
+ this.fire('add');
+ map.fire('layeradd', {layer: this});
+ }
+});
+
+/* @section Extension methods
+ * @uninheritable
+ *
+ * Every layer should extend from `L.Layer` and (re-)implement the following methods.
+ *
+ * @method onAdd(map: Map): this
+ * Should contain code that creates DOM elements for the layer, adds them to `map panes` where they should belong and puts listeners on relevant map events. Called on [`map.addLayer(layer)`](#map-addlayer).
+ *
+ * @method onRemove(map: Map): this
+ * Should contain all clean up code that removes the layer's elements from the DOM and removes listeners previously added in [`onAdd`](#layer-onadd). Called on [`map.removeLayer(layer)`](#map-removelayer).
+ *
+ * @method getEvents(): Object
+ * This optional method should return an object like `{ viewreset: this._reset }` for [`addEventListener`](#evented-addeventlistener). The event handlers in this object will be automatically added and removed from the map with your layer.
+ *
+ * @method getAttribution(): String
+ * This optional method should return a string containing HTML to be shown on the `Attribution control` whenever the layer is visible.
+ *
+ * @method beforeAdd(map: Map): this
+ * Optional method. Called on [`map.addLayer(layer)`](#map-addlayer), before the layer is added to the map, before events are initialized, without waiting until the map is in a usable state. Use for early initialization only.
+ */
+
+
+/* @namespace Map
+ * @section Layer events
+ *
+ * @event layeradd: LayerEvent
+ * Fired when a new layer is added to the map.
+ *
+ * @event layerremove: LayerEvent
+ * Fired when some layer is removed from the map
+ *
+ * @section Methods for Layers and Controls
+ */
+Map.include({
+ // @method addLayer(layer: Layer): this
+ // Adds the given layer to the map
+ addLayer: function (layer) {
+ if (!layer._layerAdd) {
+ throw new Error('The provided object is not a Layer.');
}
- this._removeIcon();
- this._removeShadow();
- },
+ var id = stamp(layer);
+ if (this._layers[id]) { return this; }
+ this._layers[id] = layer;
- getEvents: function () {
- return {
- zoom: this.update,
- viewreset: this.update
- };
- },
+ layer._mapToAdd = this;
- // @method getLatLng: LatLng
- // Returns the current geographical position of the marker.
- getLatLng: function () {
- return this._latlng;
- },
+ if (layer.beforeAdd) {
+ layer.beforeAdd(this);
+ }
- // @method setLatLng(latlng: LatLng): this
- // Changes the marker position to the given point.
- setLatLng: function (latlng) {
- var oldLatLng = this._latlng;
- this._latlng = L.latLng(latlng);
- this.update();
+ this.whenReady(layer._layerAdd, layer);
- // @event move: Event
- // Fired when the marker is moved via [`setLatLng`](#marker-setlatlng) or by [dragging](#marker-dragging). Old and new coordinates are included in event arguments as `oldLatLng`, `latlng`.
- return this.fire('move', {oldLatLng: oldLatLng, latlng: this._latlng});
+ return this;
},
- // @method setZIndexOffset(offset: Number): this
- // Changes the [zIndex offset](#marker-zindexoffset) of the marker.
- setZIndexOffset: function (offset) {
- this.options.zIndexOffset = offset;
- return this.update();
- },
+ // @method removeLayer(layer: Layer): this
+ // Removes the given layer from the map.
+ removeLayer: function (layer) {
+ var id = stamp(layer);
- // @method setIcon(icon: Icon): this
- // Changes the marker icon.
- setIcon: function (icon) {
+ if (!this._layers[id]) { return this; }
+
+ if (this._loaded) {
+ layer.onRemove(this);
+ }
+
+ if (layer.getAttribution && this.attributionControl) {
+ this.attributionControl.removeAttribution(layer.getAttribution());
+ }
- this.options.icon = icon;
+ delete this._layers[id];
- if (this._map) {
- this._initIcon();
- this.update();
+ if (this._loaded) {
+ this.fire('layerremove', {layer: layer});
+ layer.fire('remove');
}
- if (this._popup) {
- this.bindPopup(this._popup, this._popup.options);
- }
+ layer._map = layer._mapToAdd = null;
return this;
},
- getElement: function () {
- return this._icon;
+ // @method hasLayer(layer: Layer): Boolean
+ // Returns `true` if the given layer is currently added to the map
+ hasLayer: function (layer) {
+ return !!layer && (stamp(layer) in this._layers);
},
- update: function () {
-
- if (this._icon) {
- var pos = this._map.latLngToLayerPoint(this._latlng).round();
- this._setPos(pos);
+ /* @method eachLayer(fn: Function, context?: Object): this
+ * Iterates over the layers of the map, optionally specifying context of the iterator function.
+ * ```
+ * map.eachLayer(function(layer){
+ * layer.bindPopup('Hello');
+ * });
+ * ```
+ */
+ eachLayer: function (method, context) {
+ for (var i in this._layers) {
+ method.call(context, this._layers[i]);
}
-
return this;
},
- _initIcon: function () {
- var options = this.options,
- classToAdd = 'leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');
-
- var icon = options.icon.createIcon(this._icon),
- addIcon = false;
+ _addLayers: function (layers) {
+ layers = layers ? (isArray(layers) ? layers : [layers]) : [];
- // if we're not reusing the icon, remove the old one and init new one
- if (icon !== this._icon) {
- if (this._icon) {
- this._removeIcon();
- }
- addIcon = true;
+ for (var i = 0, len = layers.length; i < len; i++) {
+ this.addLayer(layers[i]);
+ }
+ },
- if (options.title) {
- icon.title = options.title;
- }
- if (options.alt) {
- icon.alt = options.alt;
- }
+ _addZoomLimit: function (layer) {
+ if (isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom)) {
+ this._zoomBoundLayers[stamp(layer)] = layer;
+ this._updateZoomLevels();
}
+ },
- L.DomUtil.addClass(icon, classToAdd);
+ _removeZoomLimit: function (layer) {
+ var id = stamp(layer);
- if (options.keyboard) {
- icon.tabIndex = '0';
+ if (this._zoomBoundLayers[id]) {
+ delete this._zoomBoundLayers[id];
+ this._updateZoomLevels();
}
+ },
- this._icon = icon;
+ _updateZoomLevels: function () {
+ var minZoom = Infinity,
+ maxZoom = -Infinity,
+ oldZoomSpan = this._getZoomSpan();
- if (options.riseOnHover) {
- this.on({
- mouseover: this._bringToFront,
- mouseout: this._resetZIndex
- });
+ for (var i in this._zoomBoundLayers) {
+ var options = this._zoomBoundLayers[i].options;
+
+ minZoom = options.minZoom === undefined ? minZoom : Math.min(minZoom, options.minZoom);
+ maxZoom = options.maxZoom === undefined ? maxZoom : Math.max(maxZoom, options.maxZoom);
}
- var newShadow = options.icon.createShadow(this._shadow),
- addShadow = false;
+ this._layersMaxZoom = maxZoom === -Infinity ? undefined : maxZoom;
+ this._layersMinZoom = minZoom === Infinity ? undefined : minZoom;
- if (newShadow !== this._shadow) {
- this._removeShadow();
- addShadow = true;
+ // @section Map state change events
+ // @event zoomlevelschange: Event
+ // Fired when the number of zoomlevels on the map is changed due
+ // to adding or removing a layer.
+ if (oldZoomSpan !== this._getZoomSpan()) {
+ this.fire('zoomlevelschange');
}
- if (newShadow) {
- L.DomUtil.addClass(newShadow, classToAdd);
- newShadow.alt = '';
+ if (this.options.maxZoom === undefined && this._layersMaxZoom && this.getZoom() > this._layersMaxZoom) {
+ this.setZoom(this._layersMaxZoom);
}
- this._shadow = newShadow;
+ if (this.options.minZoom === undefined && this._layersMinZoom && this.getZoom() < this._layersMinZoom) {
+ this.setZoom(this._layersMinZoom);
+ }
+ }
+});
+
+/*
+ * @class LayerGroup
+ * @aka L.LayerGroup
+ * @inherits Layer
+ *
+ * Used to group several layers and handle them as one. If you add it to the map,
+ * any layers added or removed from the group will be added/removed on the map as
+ * well. Extends `Layer`.
+ *
+ * @example
+ *
+ * ```js
+ * L.layerGroup([marker1, marker2])
+ * .addLayer(polyline)
+ * .addTo(map);
+ * ```
+ */
+var LayerGroup = Layer.extend({
- if (options.opacity < 1) {
- this._updateOpacity();
- }
+ initialize: function (layers, options) {
+ setOptions(this, options);
+ this._layers = {};
- if (addIcon) {
- this.getPane().appendChild(this._icon);
+ var i, len;
+
+ if (layers) {
+ for (i = 0, len = layers.length; i < len; i++) {
+ this.addLayer(layers[i]);
+ }
}
- this._initInteraction();
- if (newShadow && addShadow) {
- this.getPane('shadowPane').appendChild(this._shadow);
+ },
+
+ // @method addLayer(layer: Layer): this
+ // Adds the given layer to the group.
+ addLayer: function (layer) {
+ var id = this.getLayerId(layer);
+
+ this._layers[id] = layer;
+
+ if (this._map) {
+ this._map.addLayer(layer);
}
+
+ return this;
},
- _removeIcon: function () {
- if (this.options.riseOnHover) {
- this.off({
- mouseover: this._bringToFront,
- mouseout: this._resetZIndex
- });
+ // @method removeLayer(layer: Layer): this
+ // Removes the given layer from the group.
+ // @alternative
+ // @method removeLayer(id: Number): this
+ // Removes the layer with the given internal ID from the group.
+ removeLayer: function (layer) {
+ var id = layer in this._layers ? layer : this.getLayerId(layer);
+
+ if (this._map && this._layers[id]) {
+ this._map.removeLayer(this._layers[id]);
}
- L.DomUtil.remove(this._icon);
- this.removeInteractiveTarget(this._icon);
+ delete this._layers[id];
- this._icon = null;
+ return this;
},
- _removeShadow: function () {
- if (this._shadow) {
- L.DomUtil.remove(this._shadow);
- }
- this._shadow = null;
+ // @method hasLayer(layer: Layer): Boolean
+ // Returns `true` if the given layer is currently added to the group.
+ // @alternative
+ // @method hasLayer(id: Number): Boolean
+ // Returns `true` if the given internal ID is currently added to the group.
+ hasLayer: function (layer) {
+ return !!layer && (layer in this._layers || this.getLayerId(layer) in this._layers);
},
- _setPos: function (pos) {
- L.DomUtil.setPosition(this._icon, pos);
+ // @method clearLayers(): this
+ // Removes all the layers from the group.
+ clearLayers: function () {
+ return this.eachLayer(this.removeLayer, this);
+ },
- if (this._shadow) {
- L.DomUtil.setPosition(this._shadow, pos);
+ // @method invoke(methodName: String, …): this
+ // Calls `methodName` on every layer contained in this group, passing any
+ // additional parameters. Has no effect if the layers contained do not
+ // implement `methodName`.
+ invoke: function (methodName) {
+ var args = Array.prototype.slice.call(arguments, 1),
+ i, layer;
+
+ for (i in this._layers) {
+ layer = this._layers[i];
+
+ if (layer[methodName]) {
+ layer[methodName].apply(layer, args);
+ }
}
- this._zIndex = pos.y + this.options.zIndexOffset;
+ return this;
+ },
- this._resetZIndex();
+ onAdd: function (map) {
+ this.eachLayer(map.addLayer, map);
},
- _updateZIndex: function (offset) {
- this._icon.style.zIndex = this._zIndex + offset;
+ onRemove: function (map) {
+ this.eachLayer(map.removeLayer, map);
},
- _animateZoom: function (opt) {
- var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round();
+ // @method eachLayer(fn: Function, context?: Object): this
+ // Iterates over the layers of the group, optionally specifying context of the iterator function.
+ // ```js
+ // group.eachLayer(function (layer) {
+ // layer.bindPopup('Hello');
+ // });
+ // ```
+ eachLayer: function (method, context) {
+ for (var i in this._layers) {
+ method.call(context, this._layers[i]);
+ }
+ return this;
+ },
- this._setPos(pos);
+ // @method getLayer(id: Number): Layer
+ // Returns the layer with the given internal ID.
+ getLayer: function (id) {
+ return this._layers[id];
},
- _initInteraction: function () {
+ // @method getLayers(): Layer[]
+ // Returns an array of all the layers added to the group.
+ getLayers: function () {
+ var layers = [];
+ this.eachLayer(layers.push, layers);
+ return layers;
+ },
- if (!this.options.interactive) { return; }
+ // @method setZIndex(zIndex: Number): this
+ // Calls `setZIndex` on every layer contained in this group, passing the z-index.
+ setZIndex: function (zIndex) {
+ return this.invoke('setZIndex', zIndex);
+ },
+
+ // @method getLayerId(layer: Layer): Number
+ // Returns the internal ID for a layer
+ getLayerId: function (layer) {
+ return stamp(layer);
+ }
+});
+
+
+// @factory L.layerGroup(layers?: Layer[], options?: Object)
+// Create a layer group, optionally given an initial set of layers and an `options` object.
+var layerGroup = function (layers, options) {
+ return new LayerGroup(layers, options);
+};
+
+/*
+ * @class FeatureGroup
+ * @aka L.FeatureGroup
+ * @inherits LayerGroup
+ *
+ * Extended `LayerGroup` that makes it easier to do the same thing to all its member layers:
+ * * [`bindPopup`](#layer-bindpopup) binds a popup to all of the layers at once (likewise with [`bindTooltip`](#layer-bindtooltip))
+ * * Events are propagated to the `FeatureGroup`, so if the group has an event
+ * handler, it will handle events from any of the layers. This includes mouse events
+ * and custom events.
+ * * Has `layeradd` and `layerremove` events
+ *
+ * @example
+ *
+ * ```js
+ * L.featureGroup([marker1, marker2, polyline])
+ * .bindPopup('Hello world!')
+ * .on('click', function() { alert('Clicked on a member of the group!'); })
+ * .addTo(map);
+ * ```
+ */
- L.DomUtil.addClass(this._icon, 'leaflet-interactive');
+var FeatureGroup = LayerGroup.extend({
- this.addInteractiveTarget(this._icon);
+ addLayer: function (layer) {
+ if (this.hasLayer(layer)) {
+ return this;
+ }
- if (L.Handler.MarkerDrag) {
- var draggable = this.options.draggable;
- if (this.dragging) {
- draggable = this.dragging.enabled();
- this.dragging.disable();
- }
+ layer.addEventParent(this);
- this.dragging = new L.Handler.MarkerDrag(this);
+ LayerGroup.prototype.addLayer.call(this, layer);
- if (draggable) {
- this.dragging.enable();
- }
- }
+ // @event layeradd: LayerEvent
+ // Fired when a layer is added to this `FeatureGroup`
+ return this.fire('layeradd', {layer: layer});
},
- // @method setOpacity(opacity: Number): this
- // Changes the opacity of the marker.
- setOpacity: function (opacity) {
- this.options.opacity = opacity;
- if (this._map) {
- this._updateOpacity();
+ removeLayer: function (layer) {
+ if (!this.hasLayer(layer)) {
+ return this;
+ }
+ if (layer in this._layers) {
+ layer = this._layers[layer];
}
- return this;
- },
-
- _updateOpacity: function () {
- var opacity = this.options.opacity;
+ layer.removeEventParent(this);
- L.DomUtil.setOpacity(this._icon, opacity);
+ LayerGroup.prototype.removeLayer.call(this, layer);
- if (this._shadow) {
- L.DomUtil.setOpacity(this._shadow, opacity);
- }
+ // @event layerremove: LayerEvent
+ // Fired when a layer is removed from this `FeatureGroup`
+ return this.fire('layerremove', {layer: layer});
},
- _bringToFront: function () {
- this._updateZIndex(this.options.riseOffset);
+ // @method setStyle(style: Path options): this
+ // Sets the given path options to each layer of the group that has a `setStyle` method.
+ setStyle: function (style) {
+ return this.invoke('setStyle', style);
},
- _resetZIndex: function () {
- this._updateZIndex(0);
+ // @method bringToFront(): this
+ // Brings the layer group to the top of all other layers
+ bringToFront: function () {
+ return this.invoke('bringToFront');
},
- _getPopupAnchor: function () {
- return this.options.icon.options.popupAnchor || [0, 0];
+ // @method bringToBack(): this
+ // Brings the layer group to the back of all other layers
+ bringToBack: function () {
+ return this.invoke('bringToBack');
},
- _getTooltipAnchor: function () {
- return this.options.icon.options.tooltipAnchor || [0, 0];
+ // @method getBounds(): LatLngBounds
+ // Returns the LatLngBounds of the Feature Group (created from bounds and coordinates of its children).
+ getBounds: function () {
+ var bounds = new LatLngBounds();
+
+ for (var id in this._layers) {
+ var layer = this._layers[id];
+ bounds.extend(layer.getBounds ? layer.getBounds() : layer.getLatLng());
+ }
+ return bounds;
}
});
-
-// factory L.marker(latlng: LatLng, options? : Marker options)
-
-// @factory L.marker(latlng: LatLng, options? : Marker options)
-// Instantiates a Marker object given a geographical point and optionally an options object.
-L.marker = function (latlng, options) {
- return new L.Marker(latlng, options);
+// @factory L.featureGroup(layers: Layer[])
+// Create a feature group, optionally given an initial set of layers.
+var featureGroup = function (layers) {
+ return new FeatureGroup(layers);
};
-
-
/*
- * @class DivIcon
- * @aka L.DivIcon
- * @inherits Icon
+ * @class Icon
+ * @aka L.Icon
*
- * Represents a lightweight icon for markers that uses a simple `<div>`
- * element instead of an image. Inherits from `Icon` but ignores the `iconUrl` and shadow options.
+ * Represents an icon to provide when creating a marker.
*
* @example
+ *
* ```js
- * var myIcon = L.divIcon({className: 'my-div-icon'});
- * // you can set .my-div-icon styles in CSS
+ * var myIcon = L.icon({
+ * iconUrl: 'my-icon.png',
+ * iconRetinaUrl: 'my-icon@2x.png',
+ * iconSize: [38, 95],
+ * iconAnchor: [22, 94],
+ * popupAnchor: [-3, -76],
+ * shadowUrl: 'my-icon-shadow.png',
+ * shadowRetinaUrl: 'my-icon-shadow@2x.png',
+ * shadowSize: [68, 95],
+ * shadowAnchor: [22, 94]
+ * });
*
* L.marker([50.505, 30.57], {icon: myIcon}).addTo(map);
* ```
*
- * By default, it has a 'leaflet-div-icon' CSS class and is styled as a little white square with a shadow.
+ * `L.Icon.Default` extends `L.Icon` and is the blue icon Leaflet uses for markers by default.
+ *
*/
-L.DivIcon = L.Icon.extend({
+var Icon = Class.extend({
+
+ /* @section
+ * @aka Icon options
+ *
+ * @option iconUrl: String = null
+ * **(required)** The URL to the icon image (absolute or relative to your script path).
+ *
+ * @option iconRetinaUrl: String = null
+ * The URL to a retina sized version of the icon image (absolute or relative to your
+ * script path). Used for Retina screen devices.
+ *
+ * @option iconSize: Point = null
+ * Size of the icon image in pixels.
+ *
+ * @option iconAnchor: Point = null
+ * The coordinates of the "tip" of the icon (relative to its top left corner). The icon
+ * will be aligned so that this point is at the marker's geographical location. Centered
+ * by default if size is specified, also can be set in CSS with negative margins.
+ *
+ * @option popupAnchor: Point = [0, 0]
+ * The coordinates of the point from which popups will "open", relative to the icon anchor.
+ *
+ * @option tooltipAnchor: Point = [0, 0]
+ * The coordinates of the point from which tooltips will "open", relative to the icon anchor.
+ *
+ * @option shadowUrl: String = null
+ * The URL to the icon shadow image. If not specified, no shadow image will be created.
+ *
+ * @option shadowRetinaUrl: String = null
+ *
+ * @option shadowSize: Point = null
+ * Size of the shadow image in pixels.
+ *
+ * @option shadowAnchor: Point = null
+ * The coordinates of the "tip" of the shadow (relative to its top left corner) (the same
+ * as iconAnchor if not specified).
+ *
+ * @option className: String = ''
+ * A custom class name to assign to both icon and shadow images. Empty by default.
+ */
+
options: {
- // @section
- // @aka DivIcon options
- iconSize: [12, 12], // also can be set through CSS
+ popupAnchor: [0, 0],
+ tooltipAnchor: [0, 0]
+ },
- // iconAnchor: (Point),
- // popupAnchor: (Point),
+ initialize: function (options) {
+ setOptions(this, options);
+ },
- // @option html: String = ''
- // Custom HTML code to put inside the div element, empty by default.
- html: false,
+ // @method createIcon(oldIcon?: HTMLElement): HTMLElement
+ // Called internally when the icon has to be shown, returns a `<img>` HTML element
+ // styled according to the options.
+ createIcon: function (oldIcon) {
+ return this._createIcon('icon', oldIcon);
+ },
- // @option bgPos: Point = [0, 0]
- // Optional relative position of the background, in pixels
- bgPos: null,
+ // @method createShadow(oldIcon?: HTMLElement): HTMLElement
+ // As `createIcon`, but for the shadow beneath it.
+ createShadow: function (oldIcon) {
+ return this._createIcon('shadow', oldIcon);
+ },
- className: 'leaflet-div-icon'
+ _createIcon: function (name, oldIcon) {
+ var src = this._getIconUrl(name);
+
+ if (!src) {
+ if (name === 'icon') {
+ throw new Error('iconUrl not set in Icon options (see the docs).');
+ }
+ return null;
+ }
+
+ var img = this._createImg(src, oldIcon && oldIcon.tagName === 'IMG' ? oldIcon : null);
+ this._setIconStyles(img, name);
+
+ return img;
},
- createIcon: function (oldIcon) {
- var div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'),
- options = this.options;
+ _setIconStyles: function (img, name) {
+ var options = this.options;
+ var sizeOption = options[name + 'Size'];
- div.innerHTML = options.html !== false ? options.html : '';
+ if (typeof sizeOption === 'number') {
+ sizeOption = [sizeOption, sizeOption];
+ }
- if (options.bgPos) {
- var bgPos = L.point(options.bgPos);
- div.style.backgroundPosition = (-bgPos.x) + 'px ' + (-bgPos.y) + 'px';
+ var size = toPoint(sizeOption),
+ anchor = toPoint(name === 'shadow' && options.shadowAnchor || options.iconAnchor ||
+ size && size.divideBy(2, true));
+
+ img.className = 'leaflet-marker-' + name + ' ' + (options.className || '');
+
+ if (anchor) {
+ img.style.marginLeft = (-anchor.x) + 'px';
+ img.style.marginTop = (-anchor.y) + 'px';
}
- this._setIconStyles(div, 'icon');
- return div;
+ if (size) {
+ img.style.width = size.x + 'px';
+ img.style.height = size.y + 'px';
+ }
},
- createShadow: function () {
- return null;
+ _createImg: function (src, el) {
+ el = el || document.createElement('img');
+ el.src = src;
+ return el;
+ },
+
+ _getIconUrl: function (name) {
+ return retina && this.options[name + 'RetinaUrl'] || this.options[name + 'Url'];
}
});
-// @factory L.divIcon(options: DivIcon options)
-// Creates a `DivIcon` instance with the given options.
-L.divIcon = function (options) {
- return new L.DivIcon(options);
-};
-
+// @factory L.icon(options: Icon options)
+// Creates an icon instance with the given options.
+function icon(options) {
+ return new Icon(options);
+}
/*
- * @class DivOverlay
- * @inherits Layer
- * @aka L.DivOverlay
- * Base model for L.Popup and L.Tooltip. Inherit from it for custom popup like plugins.
- */
-
-// @namespace DivOverlay
-L.DivOverlay = L.Layer.extend({
-
- // @section
- // @aka DivOverlay options
- options: {
- // @option offset: Point = Point(0, 7)
- // The offset of the popup position. Useful to control the anchor
- // of the popup when opening it on some overlays.
- offset: [0, 7],
+ * @miniclass Icon.Default (Icon)
+ * @aka L.Icon.Default
+ * @section
+ *
+ * A trivial subclass of `Icon`, represents the icon to use in `Marker`s when
+ * no icon is specified. Points to the blue marker image distributed with Leaflet
+ * releases.
+ *
+ * In order to customize the default icon, just change the properties of `L.Icon.Default.prototype.options`
+ * (which is a set of `Icon options`).
+ *
+ * If you want to _completely_ replace the default icon, override the
+ * `L.Marker.prototype.options.icon` with your own icon instead.
+ */
- // @option className: String = ''
- // A custom CSS class name to assign to the popup.
- className: '',
+var IconDefault = Icon.extend({
- // @option pane: String = 'popupPane'
- // `Map pane` where the popup will be added.
- pane: 'popupPane'
+ options: {
+ iconUrl: 'marker-icon.png',
+ iconRetinaUrl: 'marker-icon-2x.png',
+ shadowUrl: 'marker-shadow.png',
+ iconSize: [25, 41],
+ iconAnchor: [12, 41],
+ popupAnchor: [1, -34],
+ tooltipAnchor: [16, -28],
+ shadowSize: [41, 41]
},
- initialize: function (options, source) {
- L.setOptions(this, options);
+ _getIconUrl: function (name) {
+ if (!IconDefault.imagePath) { // Deprecated, backwards-compatibility only
+ IconDefault.imagePath = this._detectIconPath();
+ }
- this._source = source;
+ // @option imagePath: String
+ // `Icon.Default` will try to auto-detect the location of the
+ // blue icon images. If you are placing these images in a non-standard
+ // way, set this option to point to the right path.
+ return (this.options.imagePath || IconDefault.imagePath) + Icon.prototype._getIconUrl.call(this, name);
},
- onAdd: function (map) {
- this._zoomAnimated = map._zoomAnimated;
+ _detectIconPath: function () {
+ var el = create$1('div', 'leaflet-default-icon-path', document.body);
+ var path = getStyle(el, 'background-image') ||
+ getStyle(el, 'backgroundImage'); // IE8
- if (!this._container) {
- this._initLayout();
- }
+ document.body.removeChild(el);
- if (map._fadeAnimated) {
- L.DomUtil.setOpacity(this._container, 0);
+ if (path === null || path.indexOf('url') !== 0) {
+ path = '';
+ } else {
+ path = path.replace(/^url\(["']?/, '').replace(/marker-icon\.png["']?\)$/, '');
}
- clearTimeout(this._removeTimeout);
- this.getPane().appendChild(this._container);
- this.update();
+ return path;
+ }
+});
- if (map._fadeAnimated) {
- L.DomUtil.setOpacity(this._container, 1);
- }
+/*
+ * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable.
+ */
- this.bringToFront();
- },
- onRemove: function (map) {
- if (map._fadeAnimated) {
- L.DomUtil.setOpacity(this._container, 0);
- this._removeTimeout = setTimeout(L.bind(L.DomUtil.remove, L.DomUtil, this._container), 200);
- } else {
- L.DomUtil.remove(this._container);
- }
- },
+/* @namespace Marker
+ * @section Interaction handlers
+ *
+ * Interaction handlers are properties of a marker instance that allow you to control interaction behavior in runtime, enabling or disabling certain features such as dragging (see `Handler` methods). Example:
+ *
+ * ```js
+ * marker.dragging.disable();
+ * ```
+ *
+ * @property dragging: Handler
+ * Marker dragging handler (by both mouse and touch). Only valid when the marker is on the map (Otherwise set [`marker.options.draggable`](#marker-draggable)).
+ */
- // @namespace Popup
- // @method getLatLng: LatLng
- // Returns the geographical point of popup.
- getLatLng: function () {
- return this._latlng;
+var MarkerDrag = Handler.extend({
+ initialize: function (marker) {
+ this._marker = marker;
},
- // @method setLatLng(latlng: LatLng): this
- // Sets the geographical point where the popup will open.
- setLatLng: function (latlng) {
- this._latlng = L.latLng(latlng);
- if (this._map) {
- this._updatePosition();
- this._adjustPan();
+ addHooks: function () {
+ var icon = this._marker._icon;
+
+ if (!this._draggable) {
+ this._draggable = new Draggable(icon, icon, true);
}
- return this;
- },
- // @method getContent: String|HTMLElement
- // Returns the content of the popup.
- getContent: function () {
- return this._content;
- },
+ this._draggable.on({
+ dragstart: this._onDragStart,
+ predrag: this._onPreDrag,
+ drag: this._onDrag,
+ dragend: this._onDragEnd
+ }, this).enable();
- // @method setContent(htmlContent: String|HTMLElement|Function): this
- // Sets the HTML content of the popup. If a function is passed the source layer will be passed to the function. The function should return a `String` or `HTMLElement` to be used in the popup.
- setContent: function (content) {
- this._content = content;
- this.update();
- return this;
+ addClass(icon, 'leaflet-marker-draggable');
},
- // @method getElement: String|HTMLElement
- // Alias for [getContent()](#popup-getcontent)
- getElement: function () {
- return this._container;
+ removeHooks: function () {
+ this._draggable.off({
+ dragstart: this._onDragStart,
+ predrag: this._onPreDrag,
+ drag: this._onDrag,
+ dragend: this._onDragEnd
+ }, this).disable();
+
+ if (this._marker._icon) {
+ removeClass(this._marker._icon, 'leaflet-marker-draggable');
+ }
},
- // @method update: null
- // Updates the popup content, layout and position. Useful for updating the popup after something inside changed, e.g. image loaded.
- update: function () {
- if (!this._map) { return; }
+ moved: function () {
+ return this._draggable && this._draggable._moved;
+ },
- this._container.style.visibility = 'hidden';
+ _adjustPan: function (e) {
+ var marker = this._marker,
+ map = marker._map,
+ speed = this._marker.options.autoPanSpeed,
+ padding = this._marker.options.autoPanPadding,
+ iconPos = getPosition(marker._icon),
+ bounds = map.getPixelBounds(),
+ origin = map.getPixelOrigin();
- this._updateContent();
- this._updateLayout();
- this._updatePosition();
+ var panBounds = toBounds(
+ bounds.min._subtract(origin).add(padding),
+ bounds.max._subtract(origin).subtract(padding)
+ );
- this._container.style.visibility = '';
+ if (!panBounds.contains(iconPos)) {
+ // Compute incremental movement
+ var movement = toPoint(
+ (Math.max(panBounds.max.x, iconPos.x) - panBounds.max.x) / (bounds.max.x - panBounds.max.x) -
+ (Math.min(panBounds.min.x, iconPos.x) - panBounds.min.x) / (bounds.min.x - panBounds.min.x),
- this._adjustPan();
- },
+ (Math.max(panBounds.max.y, iconPos.y) - panBounds.max.y) / (bounds.max.y - panBounds.max.y) -
+ (Math.min(panBounds.min.y, iconPos.y) - panBounds.min.y) / (bounds.min.y - panBounds.min.y)
+ ).multiplyBy(speed);
- getEvents: function () {
- var events = {
- zoom: this._updatePosition,
- viewreset: this._updatePosition
- };
+ map.panBy(movement, {animate: false});
- if (this._zoomAnimated) {
- events.zoomanim = this._animateZoom;
- }
- return events;
- },
+ this._draggable._newPos._add(movement);
+ this._draggable._startPos._add(movement);
- // @method isOpen: Boolean
- // Returns `true` when the popup is visible on the map.
- isOpen: function () {
- return !!this._map && this._map.hasLayer(this);
- },
+ setPosition(marker._icon, this._draggable._newPos);
+ this._onDrag(e);
- // @method bringToFront: this
- // Brings this popup in front of other popups (in the same map pane).
- bringToFront: function () {
- if (this._map) {
- L.DomUtil.toFront(this._container);
+ this._panRequest = requestAnimFrame(this._adjustPan.bind(this, e));
}
- return this;
},
- // @method bringToBack: this
- // Brings this popup to the back of other popups (in the same map pane).
- bringToBack: function () {
- if (this._map) {
- L.DomUtil.toBack(this._container);
- }
- return this;
- },
+ _onDragStart: function () {
+ // @section Dragging events
+ // @event dragstart: Event
+ // Fired when the user starts dragging the marker.
- _updateContent: function () {
- if (!this._content) { return; }
+ // @event movestart: Event
+ // Fired when the marker starts moving (because of dragging).
- var node = this._contentNode;
- var content = (typeof this._content === 'function') ? this._content(this._source || this) : this._content;
+ this._oldLatLng = this._marker.getLatLng();
+ this._marker
+ .closePopup()
+ .fire('movestart')
+ .fire('dragstart');
+ },
- if (typeof content === 'string') {
- node.innerHTML = content;
- } else {
- while (node.hasChildNodes()) {
- node.removeChild(node.firstChild);
- }
- node.appendChild(content);
+ _onPreDrag: function (e) {
+ if (this._marker.options.autoPan) {
+ cancelAnimFrame(this._panRequest);
+ this._panRequest = requestAnimFrame(this._adjustPan.bind(this, e));
}
- this.fire('contentupdate');
},
- _updatePosition: function () {
- if (!this._map) { return; }
-
- var pos = this._map.latLngToLayerPoint(this._latlng),
- offset = L.point(this.options.offset),
- anchor = this._getAnchor();
+ _onDrag: function (e) {
+ var marker = this._marker,
+ shadow = marker._shadow,
+ iconPos = getPosition(marker._icon),
+ latlng = marker._map.layerPointToLatLng(iconPos);
- if (this._zoomAnimated) {
- L.DomUtil.setPosition(this._container, pos.add(anchor));
- } else {
- offset = offset.add(pos).add(anchor);
+ // update shadow position
+ if (shadow) {
+ setPosition(shadow, iconPos);
}
- var bottom = this._containerBottom = -offset.y,
- left = this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x;
+ marker._latlng = latlng;
+ e.latlng = latlng;
+ e.oldLatLng = this._oldLatLng;
- // bottom position the popup in case the height of the popup changes (images loading etc)
- this._container.style.bottom = bottom + 'px';
- this._container.style.left = left + 'px';
+ // @event drag: Event
+ // Fired repeatedly while the user drags the marker.
+ marker
+ .fire('move', e)
+ .fire('drag', e);
},
- _getAnchor: function () {
- return [0, 0];
- }
-
-});
+ _onDragEnd: function (e) {
+ // @event dragend: DragEndEvent
+ // Fired when the user stops dragging the marker.
+ cancelAnimFrame(this._panRequest);
+ // @event moveend: Event
+ // Fired when the marker stops moving (because of dragging).
+ delete this._oldLatLng;
+ this._marker
+ .fire('moveend')
+ .fire('dragend', e);
+ }
+});
/*
- * @class Popup
- * @inherits DivOverlay
- * @aka L.Popup
- * Used to open popups in certain places of the map. Use [Map.openPopup](#map-openpopup) to
- * open popups while making sure that only one popup is open at one time
- * (recommended for usability), or use [Map.addLayer](#map-addlayer) to open as many as you want.
+ * @class Marker
+ * @inherits Interactive layer
+ * @aka L.Marker
+ * L.Marker is used to display clickable/draggable icons on the map. Extends `Layer`.
*
* @example
*
- * If you want to just bind a popup to marker click and then open it, it's really easy:
- *
- * ```js
- * marker.bindPopup(popupContent).openPopup();
- * ```
- * Path overlays like polylines also have a `bindPopup` method.
- * Here's a more complicated way to open a popup on a map:
- *
* ```js
- * var popup = L.popup()
- * .setLatLng(latlng)
- * .setContent('<p>Hello world!<br />This is a nice popup.</p>')
- * .openOn(map);
+ * L.marker([50.5, 30.5]).addTo(map);
* ```
*/
+var Marker = Layer.extend({
+
+ // @section
+ // @aka Marker options
+ options: {
+ // @option icon: Icon = *
+ // Icon instance to use for rendering the marker.
+ // See [Icon documentation](#L.Icon) for details on how to customize the marker icon.
+ // If not specified, a common instance of `L.Icon.Default` is used.
+ icon: new IconDefault(),
+
+ // Option inherited from "Interactive layer" abstract class
+ interactive: true,
+
+ // @option keyboard: Boolean = true
+ // Whether the marker can be tabbed to with a keyboard and clicked by pressing enter.
+ keyboard: true,
+
+ // @option title: String = ''
+ // Text for the browser tooltip that appear on marker hover (no tooltip by default).
+ title: '',
-// @namespace Popup
-L.Popup = L.DivOverlay.extend({
+ // @option alt: String = ''
+ // Text for the `alt` attribute of the icon image (useful for accessibility).
+ alt: '',
- // @section
- // @aka Popup options
- options: {
- // @option maxWidth: Number = 300
- // Max width of the popup, in pixels.
- maxWidth: 300,
+ // @option zIndexOffset: Number = 0
+ // By default, marker images zIndex is set automatically based on its latitude. Use this option if you want to put the marker on top of all others (or below), specifying a high value like `1000` (or high negative value, respectively).
+ zIndexOffset: 0,
- // @option minWidth: Number = 50
- // Min width of the popup, in pixels.
- minWidth: 50,
+ // @option opacity: Number = 1.0
+ // The opacity of the marker.
+ opacity: 1,
- // @option maxHeight: Number = null
- // If set, creates a scrollable container of the given height
- // inside a popup if its content exceeds it.
- maxHeight: null,
+ // @option riseOnHover: Boolean = false
+ // If `true`, the marker will get on top of others when you hover the mouse over it.
+ riseOnHover: false,
- // @option autoPan: Boolean = true
- // Set it to `false` if you don't want the map to do panning animation
- // to fit the opened popup.
- autoPan: true,
+ // @option riseOffset: Number = 250
+ // The z-index offset used for the `riseOnHover` feature.
+ riseOffset: 250,
- // @option autoPanPaddingTopLeft: Point = null
- // The margin between the popup and the top left corner of the map
- // view after autopanning was performed.
- autoPanPaddingTopLeft: null,
+ // @option pane: String = 'markerPane'
+ // `Map pane` where the markers icon will be added.
+ pane: 'markerPane',
- // @option autoPanPaddingBottomRight: Point = null
- // The margin between the popup and the bottom right corner of the map
- // view after autopanning was performed.
- autoPanPaddingBottomRight: null,
+ // @option pane: String = 'shadowPane'
+ // `Map pane` where the markers shadow will be added.
+ shadowPane: 'shadowPane',
- // @option autoPanPadding: Point = Point(5, 5)
- // Equivalent of setting both top left and bottom right autopan padding to the same value.
- autoPanPadding: [5, 5],
+ // @option bubblingMouseEvents: Boolean = false
+ // When `true`, a mouse event on this marker will trigger the same event on the map
+ // (unless [`L.DomEvent.stopPropagation`](#domevent-stoppropagation) is used).
+ bubblingMouseEvents: false,
- // @option keepInView: Boolean = false
- // Set it to `true` if you want to prevent users from panning the popup
- // off of the screen while it is open.
- keepInView: false,
+ // @section Draggable marker options
+ // @option draggable: Boolean = false
+ // Whether the marker is draggable with mouse/touch or not.
+ draggable: false,
- // @option closeButton: Boolean = true
- // Controls the presence of a close button in the popup.
- closeButton: true,
+ // @option autoPan: Boolean = false
+ // Whether to pan the map when dragging this marker near its edge or not.
+ autoPan: false,
- // @option autoClose: Boolean = true
- // Set it to `false` if you want to override the default behavior of
- // the popup closing when user clicks the map (set globally by
- // the Map's [closePopupOnClick](#map-closepopuponclick) option).
- autoClose: true,
+ // @option autoPanPadding: Point = Point(50, 50)
+ // Distance (in pixels to the left/right and to the top/bottom) of the
+ // map edge to start panning the map.
+ autoPanPadding: [50, 50],
- // @option className: String = ''
- // A custom CSS class name to assign to the popup.
- className: ''
+ // @option autoPanSpeed: Number = 10
+ // Number of pixels the map should pan by.
+ autoPanSpeed: 10
},
- // @namespace Popup
- // @method openOn(map: Map): this
- // Adds the popup to the map and closes the previous one. The same as `map.openPopup(popup)`.
- openOn: function (map) {
- map.openPopup(this);
- return this;
+ /* @section
+ *
+ * In addition to [shared layer methods](#Layer) like `addTo()` and `remove()` and [popup methods](#Popup) like bindPopup() you can also use the following methods:
+ */
+
+ initialize: function (latlng, options) {
+ setOptions(this, options);
+ this._latlng = toLatLng(latlng);
},
onAdd: function (map) {
- L.DivOverlay.prototype.onAdd.call(this, map);
-
- // @namespace Map
- // @section Popup events
- // @event popupopen: PopupEvent
- // Fired when a popup is opened in the map
- map.fire('popupopen', {popup: this});
+ this._zoomAnimated = this._zoomAnimated && map.options.markerZoomAnimation;
- if (this._source) {
- // @namespace Layer
- // @section Popup events
- // @event popupopen: PopupEvent
- // Fired when a popup bound to this layer is opened
- this._source.fire('popupopen', {popup: this}, true);
- // For non-path layers, we toggle the popup when clicking
- // again the layer, so prevent the map to reopen it.
- if (!(this._source instanceof L.Path)) {
- this._source.on('preclick', L.DomEvent.stopPropagation);
- }
+ if (this._zoomAnimated) {
+ map.on('zoomanim', this._animateZoom, this);
}
+
+ this._initIcon();
+ this.update();
},
onRemove: function (map) {
- L.DivOverlay.prototype.onRemove.call(this, map);
-
- // @namespace Map
- // @section Popup events
- // @event popupclose: PopupEvent
- // Fired when a popup in the map is closed
- map.fire('popupclose', {popup: this});
+ if (this.dragging && this.dragging.enabled()) {
+ this.options.draggable = true;
+ this.dragging.removeHooks();
+ }
+ delete this.dragging;
- if (this._source) {
- // @namespace Layer
- // @section Popup events
- // @event popupclose: PopupEvent
- // Fired when a popup bound to this layer is closed
- this._source.fire('popupclose', {popup: this}, true);
- if (!(this._source instanceof L.Path)) {
- this._source.off('preclick', L.DomEvent.stopPropagation);
- }
+ if (this._zoomAnimated) {
+ map.off('zoomanim', this._animateZoom, this);
}
+
+ this._removeIcon();
+ this._removeShadow();
},
getEvents: function () {
- var events = L.DivOverlay.prototype.getEvents.call(this);
+ return {
+ zoom: this.update,
+ viewreset: this.update
+ };
+ },
- if ('closeOnClick' in this.options ? this.options.closeOnClick : this._map.options.closePopupOnClick) {
- events.preclick = this._close;
+ // @method getLatLng: LatLng
+ // Returns the current geographical position of the marker.
+ getLatLng: function () {
+ return this._latlng;
+ },
+
+ // @method setLatLng(latlng: LatLng): this
+ // Changes the marker position to the given point.
+ setLatLng: function (latlng) {
+ var oldLatLng = this._latlng;
+ this._latlng = toLatLng(latlng);
+ this.update();
+
+ // @event move: Event
+ // Fired when the marker is moved via [`setLatLng`](#marker-setlatlng) or by [dragging](#marker-dragging). Old and new coordinates are included in event arguments as `oldLatLng`, `latlng`.
+ return this.fire('move', {oldLatLng: oldLatLng, latlng: this._latlng});
+ },
+
+ // @method setZIndexOffset(offset: Number): this
+ // Changes the [zIndex offset](#marker-zindexoffset) of the marker.
+ setZIndexOffset: function (offset) {
+ this.options.zIndexOffset = offset;
+ return this.update();
+ },
+
+ // @method getIcon: Icon
+ // Returns the current icon used by the marker
+ getIcon: function () {
+ return this.options.icon;
+ },
+
+ // @method setIcon(icon: Icon): this
+ // Changes the marker icon.
+ setIcon: function (icon) {
+
+ this.options.icon = icon;
+
+ if (this._map) {
+ this._initIcon();
+ this.update();
}
- if (this.options.keepInView) {
- events.moveend = this._adjustPan;
+ if (this._popup) {
+ this.bindPopup(this._popup, this._popup.options);
}
- return events;
+ return this;
},
- _close: function () {
- if (this._map) {
- this._map.closePopup(this);
+ getElement: function () {
+ return this._icon;
+ },
+
+ update: function () {
+
+ if (this._icon && this._map) {
+ var pos = this._map.latLngToLayerPoint(this._latlng).round();
+ this._setPos(pos);
}
+
+ return this;
},
- _initLayout: function () {
- var prefix = 'leaflet-popup',
- container = this._container = L.DomUtil.create('div',
- prefix + ' ' + (this.options.className || '') +
- ' leaflet-zoom-animated');
+ _initIcon: function () {
+ var options = this.options,
+ classToAdd = 'leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');
- if (this.options.closeButton) {
- var closeButton = this._closeButton = L.DomUtil.create('a', prefix + '-close-button', container);
- closeButton.href = '#close';
- closeButton.innerHTML = '×';
+ var icon = options.icon.createIcon(this._icon),
+ addIcon = false;
+
+ // if we're not reusing the icon, remove the old one and init new one
+ if (icon !== this._icon) {
+ if (this._icon) {
+ this._removeIcon();
+ }
+ addIcon = true;
+
+ if (options.title) {
+ icon.title = options.title;
+ }
- L.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this);
+ if (icon.tagName === 'IMG') {
+ icon.alt = options.alt || '';
+ }
}
- var wrapper = this._wrapper = L.DomUtil.create('div', prefix + '-content-wrapper', container);
- this._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper);
+ addClass(icon, classToAdd);
- L.DomEvent
- .disableClickPropagation(wrapper)
- .disableScrollPropagation(this._contentNode)
- .on(wrapper, 'contextmenu', L.DomEvent.stopPropagation);
+ if (options.keyboard) {
+ icon.tabIndex = '0';
+ }
- this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container);
- this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer);
- },
+ this._icon = icon;
- _updateLayout: function () {
- var container = this._contentNode,
- style = container.style;
+ if (options.riseOnHover) {
+ this.on({
+ mouseover: this._bringToFront,
+ mouseout: this._resetZIndex
+ });
+ }
- style.width = '';
- style.whiteSpace = 'nowrap';
+ var newShadow = options.icon.createShadow(this._shadow),
+ addShadow = false;
- var width = container.offsetWidth;
- width = Math.min(width, this.options.maxWidth);
- width = Math.max(width, this.options.minWidth);
+ if (newShadow !== this._shadow) {
+ this._removeShadow();
+ addShadow = true;
+ }
- style.width = (width + 1) + 'px';
- style.whiteSpace = '';
+ if (newShadow) {
+ addClass(newShadow, classToAdd);
+ newShadow.alt = '';
+ }
+ this._shadow = newShadow;
- style.height = '';
- var height = container.offsetHeight,
- maxHeight = this.options.maxHeight,
- scrolledClass = 'leaflet-popup-scrolled';
+ if (options.opacity < 1) {
+ this._updateOpacity();
+ }
- if (maxHeight && height > maxHeight) {
- style.height = maxHeight + 'px';
- L.DomUtil.addClass(container, scrolledClass);
- } else {
- L.DomUtil.removeClass(container, scrolledClass);
+
+ if (addIcon) {
+ this.getPane().appendChild(this._icon);
+ }
+ this._initInteraction();
+ if (newShadow && addShadow) {
+ this.getPane(options.shadowPane).appendChild(this._shadow);
+ }
+ },
+
+ _removeIcon: function () {
+ if (this.options.riseOnHover) {
+ this.off({
+ mouseover: this._bringToFront,
+ mouseout: this._resetZIndex
+ });
}
- this._containerWidth = this._container.offsetWidth;
+ remove(this._icon);
+ this.removeInteractiveTarget(this._icon);
+
+ this._icon = null;
},
- _animateZoom: function (e) {
- var pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center),
- anchor = this._getAnchor();
- L.DomUtil.setPosition(this._container, pos.add(anchor));
+ _removeShadow: function () {
+ if (this._shadow) {
+ remove(this._shadow);
+ }
+ this._shadow = null;
},
- _adjustPan: function () {
- if (!this.options.autoPan || (this._map._panAnim && this._map._panAnim._inProgress)) { return; }
+ _setPos: function (pos) {
- var map = this._map,
- marginBottom = parseInt(L.DomUtil.getStyle(this._container, 'marginBottom'), 10) || 0,
- containerHeight = this._container.offsetHeight + marginBottom,
- containerWidth = this._containerWidth,
- layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom);
+ if (this._icon) {
+ setPosition(this._icon, pos);
+ }
- layerPos._add(L.DomUtil.getPosition(this._container));
+ if (this._shadow) {
+ setPosition(this._shadow, pos);
+ }
- var containerPos = map.layerPointToContainerPoint(layerPos),
- padding = L.point(this.options.autoPanPadding),
- paddingTL = L.point(this.options.autoPanPaddingTopLeft || padding),
- paddingBR = L.point(this.options.autoPanPaddingBottomRight || padding),
- size = map.getSize(),
- dx = 0,
- dy = 0;
+ this._zIndex = pos.y + this.options.zIndexOffset;
- if (containerPos.x + containerWidth + paddingBR.x > size.x) { // right
- dx = containerPos.x + containerWidth - size.x + paddingBR.x;
- }
- if (containerPos.x - dx - paddingTL.x < 0) { // left
- dx = containerPos.x - paddingTL.x;
- }
- if (containerPos.y + containerHeight + paddingBR.y > size.y) { // bottom
- dy = containerPos.y + containerHeight - size.y + paddingBR.y;
- }
- if (containerPos.y - dy - paddingTL.y < 0) { // top
- dy = containerPos.y - paddingTL.y;
- }
+ this._resetZIndex();
+ },
- // @namespace Map
- // @section Popup events
- // @event autopanstart: Event
- // Fired when the map starts autopanning when opening a popup.
- if (dx || dy) {
- map
- .fire('autopanstart')
- .panBy([dx, dy]);
+ _updateZIndex: function (offset) {
+ if (this._icon) {
+ this._icon.style.zIndex = this._zIndex + offset;
}
},
- _onCloseButtonClick: function (e) {
- this._close();
- L.DomEvent.stop(e);
+ _animateZoom: function (opt) {
+ var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round();
+
+ this._setPos(pos);
},
- _getAnchor: function () {
- // Where should we anchor the popup on the source layer?
- return L.point(this._source && this._source._getPopupAnchor ? this._source._getPopupAnchor() : [0, 0]);
- }
+ _initInteraction: function () {
-});
+ if (!this.options.interactive) { return; }
-// @namespace Popup
-// @factory L.popup(options?: Popup options, source?: Layer)
-// Instantiates a `Popup` object given an optional `options` object that describes its appearance and location and an optional `source` object that is used to tag the popup with a reference to the Layer to which it refers.
-L.popup = function (options, source) {
- return new L.Popup(options, source);
-};
+ addClass(this._icon, 'leaflet-interactive');
+ this.addInteractiveTarget(this._icon);
-/* @namespace Map
- * @section Interaction Options
- * @option closePopupOnClick: Boolean = true
- * Set it to `false` if you don't want popups to close when user clicks the map.
- */
-L.Map.mergeOptions({
- closePopupOnClick: true
-});
+ if (MarkerDrag) {
+ var draggable = this.options.draggable;
+ if (this.dragging) {
+ draggable = this.dragging.enabled();
+ this.dragging.disable();
+ }
+ this.dragging = new MarkerDrag(this);
-// @namespace Map
-// @section Methods for Layers and Controls
-L.Map.include({
- // @method openPopup(popup: Popup): this
- // Opens the specified popup while closing the previously opened (to make sure only one is opened at one time for usability).
- // @alternative
- // @method openPopup(content: String|HTMLElement, latlng: LatLng, options?: Popup options): this
- // Creates a popup with the specified content and options and opens it in the given point on a map.
- openPopup: function (popup, latlng, options) {
- if (!(popup instanceof L.Popup)) {
- popup = new L.Popup(options).setContent(popup);
+ if (draggable) {
+ this.dragging.enable();
+ }
}
+ },
- if (latlng) {
- popup.setLatLng(latlng);
+ // @method setOpacity(opacity: Number): this
+ // Changes the opacity of the marker.
+ setOpacity: function (opacity) {
+ this.options.opacity = opacity;
+ if (this._map) {
+ this._updateOpacity();
}
- if (this.hasLayer(popup)) {
- return this;
+ return this;
+ },
+
+ _updateOpacity: function () {
+ var opacity = this.options.opacity;
+
+ if (this._icon) {
+ setOpacity(this._icon, opacity);
}
- if (this._popup && this._popup.options.autoClose) {
- this.closePopup();
+ if (this._shadow) {
+ setOpacity(this._shadow, opacity);
}
+ },
- this._popup = popup;
- return this.addLayer(popup);
+ _bringToFront: function () {
+ this._updateZIndex(this.options.riseOffset);
},
- // @method closePopup(popup?: Popup): this
- // Closes the popup previously opened with [openPopup](#map-openpopup) (or the given one).
- closePopup: function (popup) {
- if (!popup || popup === this._popup) {
- popup = this._popup;
- this._popup = null;
- }
- if (popup) {
- this.removeLayer(popup);
- }
- return this;
+ _resetZIndex: function () {
+ this._updateZIndex(0);
+ },
+
+ _getPopupAnchor: function () {
+ return this.options.icon.options.popupAnchor;
+ },
+
+ _getTooltipAnchor: function () {
+ return this.options.icon.options.tooltipAnchor;
}
});
+
+// factory L.marker(latlng: LatLng, options? : Marker options)
+
+// @factory L.marker(latlng: LatLng, options? : Marker options)
+// Instantiates a Marker object given a geographical point and optionally an options object.
+function marker(latlng, options) {
+ return new Marker(latlng, options);
+}
+
/*
- * @namespace Layer
- * @section Popup methods example
- *
- * All layers share a set of methods convenient for binding popups to it.
- *
- * ```js
- * var layer = L.Polygon(latlngs).bindPopup('Hi There!').addTo(map);
- * layer.openPopup();
- * layer.closePopup();
- * ```
+ * @class Path
+ * @aka L.Path
+ * @inherits Interactive layer
*
- * Popups will also be automatically opened when the layer is clicked on and closed when the layer is removed from the map or another popup is opened.
+ * An abstract class that contains options and constants shared between vector
+ * overlays (Polygon, Polyline, Circle). Do not use it directly. Extends `Layer`.
*/
-// @section Popup methods
-L.Layer.include({
+var Path = Layer.extend({
- // @method bindPopup(content: String|HTMLElement|Function|Popup, options?: Popup options): this
- // Binds a popup to the layer with the passed `content` and sets up the
- // neccessary event listeners. If a `Function` is passed it will receive
- // the layer as the first argument and should return a `String` or `HTMLElement`.
- bindPopup: function (content, options) {
+ // @section
+ // @aka Path options
+ options: {
+ // @option stroke: Boolean = true
+ // Whether to draw stroke along the path. Set it to `false` to disable borders on polygons or circles.
+ stroke: true,
- if (content instanceof L.Popup) {
- L.setOptions(content, options);
- this._popup = content;
- content._source = this;
- } else {
- if (!this._popup || options) {
- this._popup = new L.Popup(options, this);
- }
- this._popup.setContent(content);
- }
+ // @option color: String = '#3388ff'
+ // Stroke color
+ color: '#3388ff',
- if (!this._popupHandlersAdded) {
- this.on({
- click: this._openPopup,
- remove: this.closePopup,
- move: this._movePopup
- });
- this._popupHandlersAdded = true;
- }
+ // @option weight: Number = 3
+ // Stroke width in pixels
+ weight: 3,
- return this;
- },
+ // @option opacity: Number = 1.0
+ // Stroke opacity
+ opacity: 1,
- // @method unbindPopup(): this
- // Removes the popup previously bound with `bindPopup`.
- unbindPopup: function () {
- if (this._popup) {
- this.off({
- click: this._openPopup,
- remove: this.closePopup,
- move: this._movePopup
- });
- this._popupHandlersAdded = false;
- this._popup = null;
- }
- return this;
- },
+ // @option lineCap: String= 'round'
+ // A string that defines [shape to be used at the end](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linecap) of the stroke.
+ lineCap: 'round',
- // @method openPopup(latlng?: LatLng): this
- // Opens the bound popup at the specificed `latlng` or at the default popup anchor if no `latlng` is passed.
- openPopup: function (layer, latlng) {
- if (!(layer instanceof L.Layer)) {
- latlng = layer;
- layer = this;
- }
+ // @option lineJoin: String = 'round'
+ // A string that defines [shape to be used at the corners](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linejoin) of the stroke.
+ lineJoin: 'round',
- if (layer instanceof L.FeatureGroup) {
- for (var id in this._layers) {
- layer = this._layers[id];
- break;
- }
- }
+ // @option dashArray: String = null
+ // A string that defines the stroke [dash pattern](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dasharray). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility).
+ dashArray: null,
- if (!latlng) {
- latlng = layer.getCenter ? layer.getCenter() : layer.getLatLng();
- }
+ // @option dashOffset: String = null
+ // A string that defines the [distance into the dash pattern to start the dash](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dashoffset). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility).
+ dashOffset: null,
- if (this._popup && this._map) {
- // set popup source to this layer
- this._popup._source = layer;
+ // @option fill: Boolean = depends
+ // Whether to fill the path with color. Set it to `false` to disable filling on polygons or circles.
+ fill: false,
+
+ // @option fillColor: String = *
+ // Fill color. Defaults to the value of the [`color`](#path-color) option
+ fillColor: null,
- // update the popup (content, layout, ect...)
- this._popup.update();
+ // @option fillOpacity: Number = 0.2
+ // Fill opacity.
+ fillOpacity: 0.2,
+
+ // @option fillRule: String = 'evenodd'
+ // A string that defines [how the inside of a shape](https://developer.mozilla.org/docs/Web/SVG/Attribute/fill-rule) is determined.
+ fillRule: 'evenodd',
+
+ // className: '',
+
+ // Option inherited from "Interactive layer" abstract class
+ interactive: true,
+
+ // @option bubblingMouseEvents: Boolean = true
+ // When `true`, a mouse event on this path will trigger the same event on the map
+ // (unless [`L.DomEvent.stopPropagation`](#domevent-stoppropagation) is used).
+ bubblingMouseEvents: true
+ },
+
+ beforeAdd: function (map) {
+ // Renderer is set here because we need to call renderer.getEvents
+ // before this.getEvents.
+ this._renderer = map.getRenderer(this);
+ },
- // open the popup on the map
- this._map.openPopup(this._popup, latlng);
- }
+ onAdd: function () {
+ this._renderer._initPath(this);
+ this._reset();
+ this._renderer._addPath(this);
+ },
- return this;
+ onRemove: function () {
+ this._renderer._removePath(this);
},
- // @method closePopup(): this
- // Closes the popup bound to this layer if it is open.
- closePopup: function () {
- if (this._popup) {
- this._popup._close();
+ // @method redraw(): this
+ // Redraws the layer. Sometimes useful after you changed the coordinates that the path uses.
+ redraw: function () {
+ if (this._map) {
+ this._renderer._updatePath(this);
}
return this;
},
- // @method togglePopup(): this
- // Opens or closes the popup bound to this layer depending on its current state.
- togglePopup: function (target) {
- if (this._popup) {
- if (this._popup._map) {
- this.closePopup();
- } else {
- this.openPopup(target);
+ // @method setStyle(style: Path options): this
+ // Changes the appearance of a Path based on the options in the `Path options` object.
+ setStyle: function (style) {
+ setOptions(this, style);
+ if (this._renderer) {
+ this._renderer._updateStyle(this);
+ if (this.options.stroke && style && style.hasOwnProperty('weight')) {
+ this._updateBounds();
}
}
return this;
},
- // @method isPopupOpen(): boolean
- // Returns `true` if the popup bound to this layer is currently open.
- isPopupOpen: function () {
- return (this._popup ? this._popup.isOpen() : false);
+ // @method bringToFront(): this
+ // Brings the layer to the top of all path layers.
+ bringToFront: function () {
+ if (this._renderer) {
+ this._renderer._bringToFront(this);
+ }
+ return this;
},
- // @method setPopupContent(content: String|HTMLElement|Popup): this
- // Sets the content of the popup bound to this layer.
- setPopupContent: function (content) {
- if (this._popup) {
- this._popup.setContent(content);
+ // @method bringToBack(): this
+ // Brings the layer to the bottom of all path layers.
+ bringToBack: function () {
+ if (this._renderer) {
+ this._renderer._bringToBack(this);
}
return this;
},
- // @method getPopup(): Popup
- // Returns the popup bound to this layer.
- getPopup: function () {
- return this._popup;
+ getElement: function () {
+ return this._path;
},
- _openPopup: function (e) {
- var layer = e.layer || e.target;
-
- if (!this._popup) {
- return;
- }
-
- if (!this._map) {
- return;
- }
-
- // prevent map click
- L.DomEvent.stop(e);
-
- // if this inherits from Path its a vector and we can just
- // open the popup at the new location
- if (layer instanceof L.Path) {
- this.openPopup(e.layer || e.target, e.latlng);
- return;
- }
-
- // otherwise treat it like a marker and figure out
- // if we should toggle it open/closed
- if (this._map.hasLayer(this._popup) && this._popup._source === layer) {
- this.closePopup();
- } else {
- this.openPopup(layer, e.latlng);
- }
+ _reset: function () {
+ // defined in child classes
+ this._project();
+ this._update();
},
- _movePopup: function (e) {
- this._popup.setLatLng(e.latlng);
+ _clickTolerance: function () {
+ // used when doing hit detection for Canvas layers
+ return (this.options.stroke ? this.options.weight / 2 : 0) + this._renderer.options.tolerance;
}
});
-
-
/*
- * @class Tooltip
- * @inherits DivOverlay
- * @aka L.Tooltip
- * Used to display small texts on top of map layers.
- *
- * @example
+ * @class CircleMarker
+ * @aka L.CircleMarker
+ * @inherits Path
*
- * ```js
- * marker.bindTooltip("my tooltip text").openTooltip();
- * ```
- * Note about tooltip offset. Leaflet takes two options in consideration
- * for computing tooltip offseting:
- * - the `offset` Tooltip option: it defaults to [0, 0], and it's specific to one tooltip.
- * Add a positive x offset to move the tooltip to the right, and a positive y offset to
- * move it to the bottom. Negatives will move to the left and top.
- * - the `tooltipAnchor` Icon option: this will only be considered for Marker. You
- * should adapt this value if you use a custom icon.
+ * A circle of a fixed size with radius specified in pixels. Extends `Path`.
*/
-
-// @namespace Tooltip
-L.Tooltip = L.DivOverlay.extend({
+var CircleMarker = Path.extend({
// @section
- // @aka Tooltip options
+ // @aka CircleMarker options
options: {
- // @option pane: String = 'tooltipPane'
- // `Map pane` where the tooltip will be added.
- pane: 'tooltipPane',
+ fill: true,
- // @option offset: Point = Point(0, 0)
- // Optional offset of the tooltip position.
- offset: [0, 0],
+ // @option radius: Number = 10
+ // Radius of the circle marker, in pixels
+ radius: 10
+ },
- // @option direction: String = 'auto'
- // Direction where to open the tooltip. Possible values are: `right`, `left`,
- // `top`, `bottom`, `center`, `auto`.
- // `auto` will dynamicaly switch between `right` and `left` according to the tooltip
- // position on the map.
- direction: 'auto',
+ initialize: function (latlng, options) {
+ setOptions(this, options);
+ this._latlng = toLatLng(latlng);
+ this._radius = this.options.radius;
+ },
- // @option permanent: Boolean = false
- // Whether to open the tooltip permanently or only on mouseover.
- permanent: false,
+ // @method setLatLng(latLng: LatLng): this
+ // Sets the position of a circle marker to a new location.
+ setLatLng: function (latlng) {
+ var oldLatLng = this._latlng;
+ this._latlng = toLatLng(latlng);
+ this.redraw();
- // @option sticky: Boolean = false
- // If true, the tooltip will follow the mouse instead of being fixed at the feature center.
- sticky: false,
+ // @event move: Event
+ // Fired when the marker is moved via [`setLatLng`](#circlemarker-setlatlng). Old and new coordinates are included in event arguments as `oldLatLng`, `latlng`.
+ return this.fire('move', {oldLatLng: oldLatLng, latlng: this._latlng});
+ },
- // @option interactive: Boolean = false
- // If true, the tooltip will listen to the feature events.
- interactive: false,
+ // @method getLatLng(): LatLng
+ // Returns the current geographical position of the circle marker
+ getLatLng: function () {
+ return this._latlng;
+ },
- // @option opacity: Number = 0.9
- // Tooltip container opacity.
- opacity: 0.9
+ // @method setRadius(radius: Number): this
+ // Sets the radius of a circle marker. Units are in pixels.
+ setRadius: function (radius) {
+ this.options.radius = this._radius = radius;
+ return this.redraw();
},
- onAdd: function (map) {
- L.DivOverlay.prototype.onAdd.call(this, map);
- this.setOpacity(this.options.opacity);
+ // @method getRadius(): Number
+ // Returns the current radius of the circle
+ getRadius: function () {
+ return this._radius;
+ },
- // @namespace Map
- // @section Tooltip events
- // @event tooltipopen: TooltipEvent
- // Fired when a tooltip is opened in the map.
- map.fire('tooltipopen', {tooltip: this});
+ setStyle : function (options) {
+ var radius = options && options.radius || this._radius;
+ Path.prototype.setStyle.call(this, options);
+ this.setRadius(radius);
+ return this;
+ },
- if (this._source) {
- // @namespace Layer
- // @section Tooltip events
- // @event tooltipopen: TooltipEvent
- // Fired when a tooltip bound to this layer is opened.
- this._source.fire('tooltipopen', {tooltip: this}, true);
+ _project: function () {
+ this._point = this._map.latLngToLayerPoint(this._latlng);
+ this._updateBounds();
+ },
+
+ _updateBounds: function () {
+ var r = this._radius,
+ r2 = this._radiusY || r,
+ w = this._clickTolerance(),
+ p = [r + w, r2 + w];
+ this._pxBounds = new Bounds(this._point.subtract(p), this._point.add(p));
+ },
+
+ _update: function () {
+ if (this._map) {
+ this._updatePath();
}
},
- onRemove: function (map) {
- L.DivOverlay.prototype.onRemove.call(this, map);
+ _updatePath: function () {
+ this._renderer._updateCircle(this);
+ },
- // @namespace Map
- // @section Tooltip events
- // @event tooltipclose: TooltipEvent
- // Fired when a tooltip in the map is closed.
- map.fire('tooltipclose', {tooltip: this});
+ _empty: function () {
+ return this._radius && !this._renderer._bounds.intersects(this._pxBounds);
+ },
- if (this._source) {
- // @namespace Layer
- // @section Tooltip events
- // @event tooltipclose: TooltipEvent
- // Fired when a tooltip bound to this layer is closed.
- this._source.fire('tooltipclose', {tooltip: this}, true);
+ // Needed by the `Canvas` renderer for interactivity
+ _containsPoint: function (p) {
+ return p.distanceTo(this._point) <= this._radius + this._clickTolerance();
+ }
+});
+
+
+// @factory L.circleMarker(latlng: LatLng, options?: CircleMarker options)
+// Instantiates a circle marker object given a geographical point, and an optional options object.
+function circleMarker(latlng, options) {
+ return new CircleMarker(latlng, options);
+}
+
+/*
+ * @class Circle
+ * @aka L.Circle
+ * @inherits CircleMarker
+ *
+ * A class for drawing circle overlays on a map. Extends `CircleMarker`.
+ *
+ * It's an approximation and starts to diverge from a real circle closer to poles (due to projection distortion).
+ *
+ * @example
+ *
+ * ```js
+ * L.circle([50.5, 30.5], {radius: 200}).addTo(map);
+ * ```
+ */
+
+var Circle = CircleMarker.extend({
+
+ initialize: function (latlng, options, legacyOptions) {
+ if (typeof options === 'number') {
+ // Backwards compatibility with 0.7.x factory (latlng, radius, options?)
+ options = extend({}, legacyOptions, {radius: options});
}
- },
+ setOptions(this, options);
+ this._latlng = toLatLng(latlng);
- getEvents: function () {
- var events = L.DivOverlay.prototype.getEvents.call(this);
+ if (isNaN(this.options.radius)) { throw new Error('Circle radius cannot be NaN'); }
- if (L.Browser.touch && !this.options.permanent) {
- events.preclick = this._close;
- }
+ // @section
+ // @aka Circle options
+ // @option radius: Number; Radius of the circle, in meters.
+ this._mRadius = this.options.radius;
+ },
- return events;
+ // @method setRadius(radius: Number): this
+ // Sets the radius of a circle. Units are in meters.
+ setRadius: function (radius) {
+ this._mRadius = radius;
+ return this.redraw();
},
- _close: function () {
- if (this._map) {
- this._map.closeTooltip(this);
- }
+ // @method getRadius(): Number
+ // Returns the current radius of a circle. Units are in meters.
+ getRadius: function () {
+ return this._mRadius;
},
- _initLayout: function () {
- var prefix = 'leaflet-tooltip',
- className = prefix + ' ' + (this.options.className || '') + ' leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');
+ // @method getBounds(): LatLngBounds
+ // Returns the `LatLngBounds` of the path.
+ getBounds: function () {
+ var half = [this._radius, this._radiusY || this._radius];
- this._contentNode = this._container = L.DomUtil.create('div', className);
+ return new LatLngBounds(
+ this._map.layerPointToLatLng(this._point.subtract(half)),
+ this._map.layerPointToLatLng(this._point.add(half)));
},
- _updateLayout: function () {},
+ setStyle: Path.prototype.setStyle,
- _adjustPan: function () {},
+ _project: function () {
- _setPosition: function (pos) {
- var map = this._map,
- container = this._container,
- centerPoint = map.latLngToContainerPoint(map.getCenter()),
- tooltipPoint = map.layerPointToContainerPoint(pos),
- direction = this.options.direction,
- tooltipWidth = container.offsetWidth,
- tooltipHeight = container.offsetHeight,
- offset = L.point(this.options.offset),
- anchor = this._getAnchor();
+ var lng = this._latlng.lng,
+ lat = this._latlng.lat,
+ map = this._map,
+ crs = map.options.crs;
+
+ if (crs.distance === Earth.distance) {
+ var d = Math.PI / 180,
+ latR = (this._mRadius / Earth.R) / d,
+ top = map.project([lat + latR, lng]),
+ bottom = map.project([lat - latR, lng]),
+ p = top.add(bottom).divideBy(2),
+ lat2 = map.unproject(p).lat,
+ lngR = Math.acos((Math.cos(latR * d) - Math.sin(lat * d) * Math.sin(lat2 * d)) /
+ (Math.cos(lat * d) * Math.cos(lat2 * d))) / d;
+
+ if (isNaN(lngR) || lngR === 0) {
+ lngR = latR / Math.cos(Math.PI / 180 * lat); // Fallback for edge case, #2425
+ }
+
+ this._point = p.subtract(map.getPixelOrigin());
+ this._radius = isNaN(lngR) ? 0 : p.x - map.project([lat2, lng - lngR]).x;
+ this._radiusY = p.y - top.y;
- if (direction === 'top') {
- pos = pos.add(L.point(-tooltipWidth / 2 + offset.x, -tooltipHeight + offset.y + anchor.y, true));
- } else if (direction === 'bottom') {
- pos = pos.subtract(L.point(tooltipWidth / 2 - offset.x, -offset.y, true));
- } else if (direction === 'center') {
- pos = pos.subtract(L.point(tooltipWidth / 2 + offset.x, tooltipHeight / 2 - anchor.y + offset.y, true));
- } else if (direction === 'right' || direction === 'auto' && tooltipPoint.x < centerPoint.x) {
- direction = 'right';
- pos = pos.add(L.point(offset.x + anchor.x, anchor.y - tooltipHeight / 2 + offset.y, true));
} else {
- direction = 'left';
- pos = pos.subtract(L.point(tooltipWidth + anchor.x - offset.x, tooltipHeight / 2 - anchor.y - offset.y, true));
+ var latlng2 = crs.unproject(crs.project(this._latlng).subtract([this._mRadius, 0]));
+
+ this._point = map.latLngToLayerPoint(this._latlng);
+ this._radius = this._point.x - map.latLngToLayerPoint(latlng2).x;
}
- L.DomUtil.removeClass(container, 'leaflet-tooltip-right');
- L.DomUtil.removeClass(container, 'leaflet-tooltip-left');
- L.DomUtil.removeClass(container, 'leaflet-tooltip-top');
- L.DomUtil.removeClass(container, 'leaflet-tooltip-bottom');
- L.DomUtil.addClass(container, 'leaflet-tooltip-' + direction);
- L.DomUtil.setPosition(container, pos);
+ this._updateBounds();
+ }
+});
+
+// @factory L.circle(latlng: LatLng, options?: Circle options)
+// Instantiates a circle object given a geographical point, and an options object
+// which contains the circle radius.
+// @alternative
+// @factory L.circle(latlng: LatLng, radius: Number, options?: Circle options)
+// Obsolete way of instantiating a circle, for compatibility with 0.7.x code.
+// Do not use in new applications or plugins.
+function circle(latlng, options, legacyOptions) {
+ return new Circle(latlng, options, legacyOptions);
+}
+
+/*
+ * @class Polyline
+ * @aka L.Polyline
+ * @inherits Path
+ *
+ * A class for drawing polyline overlays on a map. Extends `Path`.
+ *
+ * @example
+ *
+ * ```js
+ * // create a red polyline from an array of LatLng points
+ * var latlngs = [
+ * [45.51, -122.68],
+ * [37.77, -122.43],
+ * [34.04, -118.2]
+ * ];
+ *
+ * var polyline = L.polyline(latlngs, {color: 'red'}).addTo(map);
+ *
+ * // zoom the map to the polyline
+ * map.fitBounds(polyline.getBounds());
+ * ```
+ *
+ * You can also pass a multi-dimensional array to represent a `MultiPolyline` shape:
+ *
+ * ```js
+ * // create a red polyline from an array of arrays of LatLng points
+ * var latlngs = [
+ * [[45.51, -122.68],
+ * [37.77, -122.43],
+ * [34.04, -118.2]],
+ * [[40.78, -73.91],
+ * [41.83, -87.62],
+ * [32.76, -96.72]]
+ * ];
+ * ```
+ */
+
+
+var Polyline = Path.extend({
+
+ // @section
+ // @aka Polyline options
+ options: {
+ // @option smoothFactor: Number = 1.0
+ // How much to simplify the polyline on each zoom level. More means
+ // better performance and smoother look, and less means more accurate representation.
+ smoothFactor: 1.0,
+
+ // @option noClip: Boolean = false
+ // Disable polyline clipping.
+ noClip: false
},
- _updatePosition: function () {
- var pos = this._map.latLngToLayerPoint(this._latlng);
- this._setPosition(pos);
+ initialize: function (latlngs, options) {
+ setOptions(this, options);
+ this._setLatLngs(latlngs);
},
- setOpacity: function (opacity) {
- this.options.opacity = opacity;
+ // @method getLatLngs(): LatLng[]
+ // Returns an array of the points in the path, or nested arrays of points in case of multi-polyline.
+ getLatLngs: function () {
+ return this._latlngs;
+ },
- if (this._container) {
- L.DomUtil.setOpacity(this._container, opacity);
- }
+ // @method setLatLngs(latlngs: LatLng[]): this
+ // Replaces all the points in the polyline with the given array of geographical points.
+ setLatLngs: function (latlngs) {
+ this._setLatLngs(latlngs);
+ return this.redraw();
},
- _animateZoom: function (e) {
- var pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center);
- this._setPosition(pos);
+ // @method isEmpty(): Boolean
+ // Returns `true` if the Polyline has no LatLngs.
+ isEmpty: function () {
+ return !this._latlngs.length;
},
- _getAnchor: function () {
- // Where should we anchor the tooltip on the source layer?
- return L.point(this._source && this._source._getTooltipAnchor && !this.options.sticky ? this._source._getTooltipAnchor() : [0, 0]);
- }
+ // @method closestLayerPoint(p: Point): Point
+ // Returns the point closest to `p` on the Polyline.
+ closestLayerPoint: function (p) {
+ var minDistance = Infinity,
+ minPoint = null,
+ closest = _sqClosestPointOnSegment,
+ p1, p2;
-});
+ for (var j = 0, jLen = this._parts.length; j < jLen; j++) {
+ var points = this._parts[j];
-// @namespace Tooltip
-// @factory L.tooltip(options?: Tooltip options, source?: Layer)
-// Instantiates a Tooltip object given an optional `options` object that describes its appearance and location and an optional `source` object that is used to tag the tooltip with a reference to the Layer to which it refers.
-L.tooltip = function (options, source) {
- return new L.Tooltip(options, source);
-};
+ for (var i = 1, len = points.length; i < len; i++) {
+ p1 = points[i - 1];
+ p2 = points[i];
-// @namespace Map
-// @section Methods for Layers and Controls
-L.Map.include({
+ var sqDist = closest(p, p1, p2, true);
- // @method openTooltip(tooltip: Tooltip): this
- // Opens the specified tooltip.
- // @alternative
- // @method openTooltip(content: String|HTMLElement, latlng: LatLng, options?: Tooltip options): this
- // Creates a tooltip with the specified content and options and open it.
- openTooltip: function (tooltip, latlng, options) {
- if (!(tooltip instanceof L.Tooltip)) {
- tooltip = new L.Tooltip(options).setContent(tooltip);
+ if (sqDist < minDistance) {
+ minDistance = sqDist;
+ minPoint = closest(p, p1, p2);
+ }
+ }
}
-
- if (latlng) {
- tooltip.setLatLng(latlng);
+ if (minPoint) {
+ minPoint.distance = Math.sqrt(minDistance);
}
+ return minPoint;
+ },
- if (this.hasLayer(tooltip)) {
- return this;
+ // @method getCenter(): LatLng
+ // Returns the center ([centroid](http://en.wikipedia.org/wiki/Centroid)) of the polyline.
+ getCenter: function () {
+ // throws error when not yet added to map as this center calculation requires projected coordinates
+ if (!this._map) {
+ throw new Error('Must add layer to map before using getCenter()');
}
- return this.addLayer(tooltip);
- },
+ var i, halfDist, segDist, dist, p1, p2, ratio,
+ points = this._rings[0],
+ len = points.length;
- // @method closeTooltip(tooltip?: Tooltip): this
- // Closes the tooltip given as parameter.
- closeTooltip: function (tooltip) {
- if (tooltip) {
- this.removeLayer(tooltip);
+ if (!len) { return null; }
+
+ // polyline centroid algorithm; only uses the first ring if there are multiple
+
+ for (i = 0, halfDist = 0; i < len - 1; i++) {
+ halfDist += points[i].distanceTo(points[i + 1]) / 2;
}
- return this;
- }
-});
+ // The line is so small in the current view that all points are on the same pixel.
+ if (halfDist === 0) {
+ return this._map.layerPointToLatLng(points[0]);
+ }
-/*
- * @namespace Layer
- * @section Tooltip methods example
- *
- * All layers share a set of methods convenient for binding tooltips to it.
- *
- * ```js
- * var layer = L.Polygon(latlngs).bindTooltip('Hi There!').addTo(map);
- * layer.openTooltip();
- * layer.closeTooltip();
- * ```
- */
+ for (i = 0, dist = 0; i < len - 1; i++) {
+ p1 = points[i];
+ p2 = points[i + 1];
+ segDist = p1.distanceTo(p2);
+ dist += segDist;
+
+ if (dist > halfDist) {
+ ratio = (dist - halfDist) / segDist;
+ return this._map.layerPointToLatLng([
+ p2.x - ratio * (p2.x - p1.x),
+ p2.y - ratio * (p2.y - p1.y)
+ ]);
+ }
+ }
+ },
-// @section Tooltip methods
-L.Layer.include({
+ // @method getBounds(): LatLngBounds
+ // Returns the `LatLngBounds` of the path.
+ getBounds: function () {
+ return this._bounds;
+ },
- // @method bindTooltip(content: String|HTMLElement|Function|Tooltip, options?: Tooltip options): this
- // Binds a tooltip to the layer with the passed `content` and sets up the
- // neccessary event listeners. If a `Function` is passed it will receive
- // the layer as the first argument and should return a `String` or `HTMLElement`.
- bindTooltip: function (content, options) {
+ // @method addLatLng(latlng: LatLng, latlngs? LatLng[]): this
+ // Adds a given point to the polyline. By default, adds to the first ring of
+ // the polyline in case of a multi-polyline, but can be overridden by passing
+ // a specific ring as a LatLng array (that you can earlier access with [`getLatLngs`](#polyline-getlatlngs)).
+ addLatLng: function (latlng, latlngs) {
+ latlngs = latlngs || this._defaultShape();
+ latlng = toLatLng(latlng);
+ latlngs.push(latlng);
+ this._bounds.extend(latlng);
+ return this.redraw();
+ },
- if (content instanceof L.Tooltip) {
- L.setOptions(content, options);
- this._tooltip = content;
- content._source = this;
- } else {
- if (!this._tooltip || options) {
- this._tooltip = L.tooltip(options, this);
- }
- this._tooltip.setContent(content);
+ _setLatLngs: function (latlngs) {
+ this._bounds = new LatLngBounds();
+ this._latlngs = this._convertLatLngs(latlngs);
+ },
- }
+ _defaultShape: function () {
+ return isFlat(this._latlngs) ? this._latlngs : this._latlngs[0];
+ },
- this._initTooltipInteractions();
+ // recursively convert latlngs input into actual LatLng instances; calculate bounds along the way
+ _convertLatLngs: function (latlngs) {
+ var result = [],
+ flat = isFlat(latlngs);
- if (this._tooltip.options.permanent && this._map && this._map.hasLayer(this)) {
- this.openTooltip();
+ for (var i = 0, len = latlngs.length; i < len; i++) {
+ if (flat) {
+ result[i] = toLatLng(latlngs[i]);
+ this._bounds.extend(result[i]);
+ } else {
+ result[i] = this._convertLatLngs(latlngs[i]);
+ }
}
- return this;
+ return result;
},
- // @method unbindTooltip(): this
- // Removes the tooltip previously bound with `bindTooltip`.
- unbindTooltip: function () {
- if (this._tooltip) {
- this._initTooltipInteractions(true);
- this.closeTooltip();
- this._tooltip = null;
+ _project: function () {
+ var pxBounds = new Bounds();
+ this._rings = [];
+ this._projectLatlngs(this._latlngs, this._rings, pxBounds);
+
+ if (this._bounds.isValid() && pxBounds.isValid()) {
+ this._rawPxBounds = pxBounds;
+ this._updateBounds();
}
- return this;
},
- _initTooltipInteractions: function (remove) {
- if (!remove && this._tooltipHandlersAdded) { return; }
- var onOff = remove ? 'off' : 'on',
- events = {
- remove: this.closeTooltip,
- move: this._moveTooltip
- };
- if (!this._tooltip.options.permanent) {
- events.mouseover = this._openTooltip;
- events.mouseout = this.closeTooltip;
- if (this._tooltip.options.sticky) {
- events.mousemove = this._moveTooltip;
- }
- if (L.Browser.touch) {
- events.click = this._openTooltip;
+ _updateBounds: function () {
+ var w = this._clickTolerance(),
+ p = new Point(w, w);
+ this._pxBounds = new Bounds([
+ this._rawPxBounds.min.subtract(p),
+ this._rawPxBounds.max.add(p)
+ ]);
+ },
+
+ // recursively turns latlngs into a set of rings with projected coordinates
+ _projectLatlngs: function (latlngs, result, projectedBounds) {
+ var flat = latlngs[0] instanceof LatLng,
+ len = latlngs.length,
+ i, ring;
+
+ if (flat) {
+ ring = [];
+ for (i = 0; i < len; i++) {
+ ring[i] = this._map.latLngToLayerPoint(latlngs[i]);
+ projectedBounds.extend(ring[i]);
}
+ result.push(ring);
} else {
- events.add = this._openTooltip;
+ for (i = 0; i < len; i++) {
+ this._projectLatlngs(latlngs[i], result, projectedBounds);
+ }
}
- this[onOff](events);
- this._tooltipHandlersAdded = !remove;
},
- // @method openTooltip(latlng?: LatLng): this
- // Opens the bound tooltip at the specificed `latlng` or at the default tooltip anchor if no `latlng` is passed.
- openTooltip: function (layer, latlng) {
- if (!(layer instanceof L.Layer)) {
- latlng = layer;
- layer = this;
- }
+ // clip polyline by renderer bounds so that we have less to render for performance
+ _clipPoints: function () {
+ var bounds = this._renderer._bounds;
- if (layer instanceof L.FeatureGroup) {
- for (var id in this._layers) {
- layer = this._layers[id];
- break;
- }
+ this._parts = [];
+ if (!this._pxBounds || !this._pxBounds.intersects(bounds)) {
+ return;
}
- if (!latlng) {
- latlng = layer.getCenter ? layer.getCenter() : layer.getLatLng();
+ if (this.options.noClip) {
+ this._parts = this._rings;
+ return;
}
- if (this._tooltip && this._map) {
-
- // set tooltip source to this layer
- this._tooltip._source = layer;
+ var parts = this._parts,
+ i, j, k, len, len2, segment, points;
- // update the tooltip (content, layout, ect...)
- this._tooltip.update();
+ for (i = 0, k = 0, len = this._rings.length; i < len; i++) {
+ points = this._rings[i];
- // open the tooltip on the map
- this._map.openTooltip(this._tooltip, latlng);
+ for (j = 0, len2 = points.length; j < len2 - 1; j++) {
+ segment = clipSegment(points[j], points[j + 1], bounds, j, true);
- // Tooltip container may not be defined if not permanent and never
- // opened.
- if (this._tooltip.options.interactive && this._tooltip._container) {
- L.DomUtil.addClass(this._tooltip._container, 'leaflet-clickable');
- this.addInteractiveTarget(this._tooltip._container);
- }
- }
+ if (!segment) { continue; }
- return this;
- },
+ parts[k] = parts[k] || [];
+ parts[k].push(segment[0]);
- // @method closeTooltip(): this
- // Closes the tooltip bound to this layer if it is open.
- closeTooltip: function () {
- if (this._tooltip) {
- this._tooltip._close();
- if (this._tooltip.options.interactive && this._tooltip._container) {
- L.DomUtil.removeClass(this._tooltip._container, 'leaflet-clickable');
- this.removeInteractiveTarget(this._tooltip._container);
+ // if segment goes out of screen, or it's the last one, it's the end of the line part
+ if ((segment[1] !== points[j + 1]) || (j === len2 - 2)) {
+ parts[k].push(segment[1]);
+ k++;
+ }
}
}
- return this;
},
- // @method toggleTooltip(): this
- // Opens or closes the tooltip bound to this layer depending on its current state.
- toggleTooltip: function (target) {
- if (this._tooltip) {
- if (this._tooltip._map) {
- this.closeTooltip();
- } else {
- this.openTooltip(target);
- }
+ // simplify each clipped part of the polyline for performance
+ _simplifyPoints: function () {
+ var parts = this._parts,
+ tolerance = this.options.smoothFactor;
+
+ for (var i = 0, len = parts.length; i < len; i++) {
+ parts[i] = simplify(parts[i], tolerance);
}
- return this;
},
- // @method isTooltipOpen(): boolean
- // Returns `true` if the tooltip bound to this layer is currently open.
- isTooltipOpen: function () {
- return this._tooltip.isOpen();
- },
+ _update: function () {
+ if (!this._map) { return; }
- // @method setTooltipContent(content: String|HTMLElement|Tooltip): this
- // Sets the content of the tooltip bound to this layer.
- setTooltipContent: function (content) {
- if (this._tooltip) {
- this._tooltip.setContent(content);
- }
- return this;
+ this._clipPoints();
+ this._simplifyPoints();
+ this._updatePath();
},
- // @method getTooltip(): Tooltip
- // Returns the tooltip bound to this layer.
- getTooltip: function () {
- return this._tooltip;
+ _updatePath: function () {
+ this._renderer._updatePoly(this);
},
- _openTooltip: function (e) {
- var layer = e.layer || e.target;
+ // Needed by the `Canvas` renderer for interactivity
+ _containsPoint: function (p, closed) {
+ var i, j, k, len, len2, part,
+ w = this._clickTolerance();
- if (!this._tooltip || !this._map) {
- return;
- }
- this.openTooltip(layer, this._tooltip.options.sticky ? e.latlng : undefined);
- },
+ if (!this._pxBounds || !this._pxBounds.contains(p)) { return false; }
- _moveTooltip: function (e) {
- var latlng = e.latlng, containerPoint, layerPoint;
- if (this._tooltip.options.sticky && e.originalEvent) {
- containerPoint = this._map.mouseEventToContainerPoint(e.originalEvent);
- layerPoint = this._map.containerPointToLayerPoint(containerPoint);
- latlng = this._map.layerPointToLatLng(layerPoint);
+ // hit detection for polylines
+ for (i = 0, len = this._parts.length; i < len; i++) {
+ part = this._parts[i];
+
+ for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
+ if (!closed && (j === 0)) { continue; }
+
+ if (pointToSegmentDistance(p, part[k], part[j]) <= w) {
+ return true;
+ }
+ }
}
- this._tooltip.setLatLng(latlng);
+ return false;
}
});
+// @factory L.polyline(latlngs: LatLng[], options?: Polyline options)
+// Instantiates a polyline object given an array of geographical points and
+// optionally an options object. You can create a `Polyline` object with
+// multiple separate lines (`MultiPolyline`) by passing an array of arrays
+// of geographic points.
+function polyline(latlngs, options) {
+ return new Polyline(latlngs, options);
+}
+// Retrocompat. Allow plugins to support Leaflet versions before and after 1.1.
+Polyline._flat = _flat;
/*
- * @class LayerGroup
- * @aka L.LayerGroup
- * @inherits Layer
+ * @class Polygon
+ * @aka L.Polygon
+ * @inherits Polyline
+ *
+ * A class for drawing polygon overlays on a map. Extends `Polyline`.
+ *
+ * Note that points you pass when creating a polygon shouldn't have an additional last point equal to the first one — it's better to filter out such points.
*
- * Used to group several layers and handle them as one. If you add it to the map,
- * any layers added or removed from the group will be added/removed on the map as
- * well. Extends `Layer`.
*
* @example
*
* ```js
- * L.layerGroup([marker1, marker2])
- * .addLayer(polyline)
- * .addTo(map);
+ * // create a red polygon from an array of LatLng points
+ * var latlngs = [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]];
+ *
+ * var polygon = L.polygon(latlngs, {color: 'red'}).addTo(map);
+ *
+ * // zoom the map to the polygon
+ * map.fitBounds(polygon.getBounds());
+ * ```
+ *
+ * You can also pass an array of arrays of latlngs, with the first array representing the outer shape and the other arrays representing holes in the outer shape:
+ *
+ * ```js
+ * var latlngs = [
+ * [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]], // outer ring
+ * [[37.29, -108.58],[40.71, -108.58],[40.71, -102.50],[37.29, -102.50]] // hole
+ * ];
+ * ```
+ *
+ * Additionally, you can pass a multi-dimensional array to represent a MultiPolygon shape.
+ *
+ * ```js
+ * var latlngs = [
+ * [ // first polygon
+ * [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]], // outer ring
+ * [[37.29, -108.58],[40.71, -108.58],[40.71, -102.50],[37.29, -102.50]] // hole
+ * ],
+ * [ // second polygon
+ * [[41, -111.03],[45, -111.04],[45, -104.05],[41, -104.05]]
+ * ]
+ * ];
* ```
*/
-L.LayerGroup = L.Layer.extend({
+var Polygon = Polyline.extend({
- initialize: function (layers) {
- this._layers = {};
+ options: {
+ fill: true
+ },
- var i, len;
+ isEmpty: function () {
+ return !this._latlngs.length || !this._latlngs[0].length;
+ },
- if (layers) {
- for (i = 0, len = layers.length; i < len; i++) {
- this.addLayer(layers[i]);
- }
+ getCenter: function () {
+ // throws error when not yet added to map as this center calculation requires projected coordinates
+ if (!this._map) {
+ throw new Error('Must add layer to map before using getCenter()');
}
- },
- // @method addLayer(layer: Layer): this
- // Adds the given layer to the group.
- addLayer: function (layer) {
- var id = this.getLayerId(layer);
+ var i, j, p1, p2, f, area, x, y, center,
+ points = this._rings[0],
+ len = points.length;
- this._layers[id] = layer;
+ if (!len) { return null; }
- if (this._map) {
- this._map.addLayer(layer);
- }
+ // polygon centroid algorithm; only uses the first ring if there are multiple
- return this;
- },
+ area = x = y = 0;
- // @method removeLayer(layer: Layer): this
- // Removes the given layer from the group.
- // @alternative
- // @method removeLayer(id: Number): this
- // Removes the layer with the given internal ID from the group.
- removeLayer: function (layer) {
- var id = layer in this._layers ? layer : this.getLayerId(layer);
+ for (i = 0, j = len - 1; i < len; j = i++) {
+ p1 = points[i];
+ p2 = points[j];
- if (this._map && this._layers[id]) {
- this._map.removeLayer(this._layers[id]);
+ f = p1.y * p2.x - p2.y * p1.x;
+ x += (p1.x + p2.x) * f;
+ y += (p1.y + p2.y) * f;
+ area += f * 3;
}
- delete this._layers[id];
-
- return this;
+ if (area === 0) {
+ // Polygon is so small that all points are on same pixel.
+ center = points[0];
+ } else {
+ center = [x / area, y / area];
+ }
+ return this._map.layerPointToLatLng(center);
},
- // @method hasLayer(layer: Layer): Boolean
- // Returns `true` if the given layer is currently added to the group.
- hasLayer: function (layer) {
- return !!layer && (layer in this._layers || this.getLayerId(layer) in this._layers);
+ _convertLatLngs: function (latlngs) {
+ var result = Polyline.prototype._convertLatLngs.call(this, latlngs),
+ len = result.length;
+
+ // remove last point if it equals first one
+ if (len >= 2 && result[0] instanceof LatLng && result[0].equals(result[len - 1])) {
+ result.pop();
+ }
+ return result;
},
- // @method clearLayers(): this
- // Removes all the layers from the group.
- clearLayers: function () {
- for (var i in this._layers) {
- this.removeLayer(this._layers[i]);
+ _setLatLngs: function (latlngs) {
+ Polyline.prototype._setLatLngs.call(this, latlngs);
+ if (isFlat(this._latlngs)) {
+ this._latlngs = [this._latlngs];
}
- return this;
},
- // @method invoke(methodName: String, …): this
- // Calls `methodName` on every layer contained in this group, passing any
- // additional parameters. Has no effect if the layers contained do not
- // implement `methodName`.
- invoke: function (methodName) {
- var args = Array.prototype.slice.call(arguments, 1),
- i, layer;
+ _defaultShape: function () {
+ return isFlat(this._latlngs[0]) ? this._latlngs[0] : this._latlngs[0][0];
+ },
- for (i in this._layers) {
- layer = this._layers[i];
+ _clipPoints: function () {
+ // polygons need a different clipping algorithm so we redefine that
- if (layer[methodName]) {
- layer[methodName].apply(layer, args);
- }
- }
+ var bounds = this._renderer._bounds,
+ w = this.options.weight,
+ p = new Point(w, w);
- return this;
- },
+ // increase clip padding by stroke width to avoid stroke on clip edges
+ bounds = new Bounds(bounds.min.subtract(p), bounds.max.add(p));
- onAdd: function (map) {
- for (var i in this._layers) {
- map.addLayer(this._layers[i]);
+ this._parts = [];
+ if (!this._pxBounds || !this._pxBounds.intersects(bounds)) {
+ return;
}
- },
- onRemove: function (map) {
- for (var i in this._layers) {
- map.removeLayer(this._layers[i]);
+ if (this.options.noClip) {
+ this._parts = this._rings;
+ return;
}
- },
- // @method eachLayer(fn: Function, context?: Object): this
- // Iterates over the layers of the group, optionally specifying context of the iterator function.
- // ```js
- // group.eachLayer(function (layer) {
- // layer.bindPopup('Hello');
- // });
- // ```
- eachLayer: function (method, context) {
- for (var i in this._layers) {
- method.call(context, this._layers[i]);
+ for (var i = 0, len = this._rings.length, clipped; i < len; i++) {
+ clipped = clipPolygon(this._rings[i], bounds, true);
+ if (clipped.length) {
+ this._parts.push(clipped);
+ }
}
- return this;
},
- // @method getLayer(id: Number): Layer
- // Returns the layer with the given internal ID.
- getLayer: function (id) {
- return this._layers[id];
+ _updatePath: function () {
+ this._renderer._updatePoly(this, true);
},
- // @method getLayers(): Layer[]
- // Returns an array of all the layers added to the group.
- getLayers: function () {
- var layers = [];
+ // Needed by the `Canvas` renderer for interactivity
+ _containsPoint: function (p) {
+ var inside = false,
+ part, p1, p2, i, j, k, len, len2;
- for (var i in this._layers) {
- layers.push(this._layers[i]);
- }
- return layers;
- },
+ if (!this._pxBounds || !this._pxBounds.contains(p)) { return false; }
- // @method setZIndex(zIndex: Number): this
- // Calls `setZIndex` on every layer contained in this group, passing the z-index.
- setZIndex: function (zIndex) {
- return this.invoke('setZIndex', zIndex);
- },
+ // ray casting algorithm for detecting if point is in polygon
+ for (i = 0, len = this._parts.length; i < len; i++) {
+ part = this._parts[i];
- // @method getLayerId(layer: Layer): Number
- // Returns the internal ID for a layer
- getLayerId: function (layer) {
- return L.stamp(layer);
- }
-});
+ 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;
+ }
+ }
+ }
-// @factory L.layerGroup(layers: Layer[])
-// Create a layer group, optionally given an initial set of layers.
-L.layerGroup = function (layers) {
- return new L.LayerGroup(layers);
-};
+ // also check if it's on polygon stroke
+ return inside || Polyline.prototype._containsPoint.call(this, p, true);
+ }
+
+});
+// @factory L.polygon(latlngs: LatLng[], options?: Polyline options)
+function polygon(latlngs, options) {
+ return new Polygon(latlngs, options);
+}
/*
- * @class FeatureGroup
- * @aka L.FeatureGroup
- * @inherits LayerGroup
+ * @class GeoJSON
+ * @aka L.GeoJSON
+ * @inherits FeatureGroup
*
- * Extended `LayerGroup` that makes it easier to do the same thing to all its member layers:
- * * [`bindPopup`](#layer-bindpopup) binds a popup to all of the layers at once (likewise with [`bindTooltip`](#layer-bindtooltip))
- * * Events are propagated to the `FeatureGroup`, so if the group has an event
- * handler, it will handle events from any of the layers. This includes mouse events
- * and custom events.
- * * Has `layeradd` and `layerremove` events
+ * Represents a GeoJSON object or an array of GeoJSON objects. Allows you to parse
+ * GeoJSON data and display it on the map. Extends `FeatureGroup`.
*
* @example
*
* ```js
- * L.featureGroup([marker1, marker2, polyline])
- * .bindPopup('Hello world!')
- * .on('click', function() { alert('Clicked on a member of the group!'); })
- * .addTo(map);
+ * L.geoJSON(data, {
+ * style: function (feature) {
+ * return {color: feature.properties.color};
+ * }
+ * }).bindPopup(function (layer) {
+ * return layer.feature.properties.description;
+ * }).addTo(map);
* ```
*/
-L.FeatureGroup = L.LayerGroup.extend({
+var GeoJSON = FeatureGroup.extend({
- addLayer: function (layer) {
- if (this.hasLayer(layer)) {
- return this;
+ /* @section
+ * @aka GeoJSON options
+ *
+ * @option pointToLayer: Function = *
+ * A `Function` defining how GeoJSON points spawn Leaflet layers. It is internally
+ * called when data is added, passing the GeoJSON point feature and its `LatLng`.
+ * The default is to spawn a default `Marker`:
+ * ```js
+ * function(geoJsonPoint, latlng) {
+ * return L.marker(latlng);
+ * }
+ * ```
+ *
+ * @option style: Function = *
+ * A `Function` defining the `Path options` for styling GeoJSON lines and polygons,
+ * called internally when data is added.
+ * The default value is to not override any defaults:
+ * ```js
+ * function (geoJsonFeature) {
+ * return {}
+ * }
+ * ```
+ *
+ * @option onEachFeature: Function = *
+ * A `Function` that will be called once for each created `Feature`, after it has
+ * been created and styled. Useful for attaching events and popups to features.
+ * The default is to do nothing with the newly created layers:
+ * ```js
+ * function (feature, layer) {}
+ * ```
+ *
+ * @option filter: Function = *
+ * A `Function` that will be used to decide whether to include a feature or not.
+ * The default is to include all features:
+ * ```js
+ * function (geoJsonFeature) {
+ * return true;
+ * }
+ * ```
+ * Note: dynamically changing the `filter` option will have effect only on newly
+ * added data. It will _not_ re-evaluate already included features.
+ *
+ * @option coordsToLatLng: Function = *
+ * A `Function` that will be used for converting GeoJSON coordinates to `LatLng`s.
+ * The default is the `coordsToLatLng` static method.
+ *
+ * @option markersInheritOptions: Boolean = false
+ * Whether default Markers for "Point" type Features inherit from group options.
+ */
+
+ initialize: function (geojson, options) {
+ setOptions(this, options);
+
+ this._layers = {};
+
+ if (geojson) {
+ this.addData(geojson);
}
+ },
- layer.addEventParent(this);
+ // @method addData( <GeoJSON> data ): this
+ // Adds a GeoJSON object to the layer.
+ addData: function (geojson) {
+ var features = isArray(geojson) ? geojson : geojson.features,
+ i, len, feature;
+
+ if (features) {
+ for (i = 0, len = features.length; i < len; i++) {
+ // only add this if geometry or geometries are set and not null
+ feature = features[i];
+ if (feature.geometries || feature.geometry || feature.features || feature.coordinates) {
+ this.addData(feature);
+ }
+ }
+ return this;
+ }
- L.LayerGroup.prototype.addLayer.call(this, layer);
+ var options = this.options;
- // @event layeradd: LayerEvent
- // Fired when a layer is added to this `FeatureGroup`
- return this.fire('layeradd', {layer: layer});
- },
+ if (options.filter && !options.filter(geojson)) { return this; }
- removeLayer: function (layer) {
- if (!this.hasLayer(layer)) {
+ var layer = geometryToLayer(geojson, options);
+ if (!layer) {
return this;
}
- if (layer in this._layers) {
- layer = this._layers[layer];
- }
-
- layer.removeEventParent(this);
+ layer.feature = asFeature(geojson);
- L.LayerGroup.prototype.removeLayer.call(this, layer);
+ layer.defaultOptions = layer.options;
+ this.resetStyle(layer);
- // @event layerremove: LayerEvent
- // Fired when a layer is removed from this `FeatureGroup`
- return this.fire('layerremove', {layer: layer});
- },
+ if (options.onEachFeature) {
+ options.onEachFeature(geojson, layer);
+ }
- // @method setStyle(style: Path options): this
- // Sets the given path options to each layer of the group that has a `setStyle` method.
- setStyle: function (style) {
- return this.invoke('setStyle', style);
+ return this.addLayer(layer);
},
- // @method bringToFront(): this
- // Brings the layer group to the top of all other layers
- bringToFront: function () {
- return this.invoke('bringToFront');
+ // @method resetStyle( <Path> layer? ): this
+ // Resets the given vector layer's style to the original GeoJSON style, useful for resetting style after hover events.
+ // If `layer` is omitted, the style of all features in the current layer is reset.
+ resetStyle: function (layer) {
+ if (layer === undefined) {
+ return this.eachLayer(this.resetStyle, this);
+ }
+ // reset any custom styles
+ layer.options = extend({}, layer.defaultOptions);
+ this._setLayerStyle(layer, this.options.style);
+ return this;
},
- // @method bringToBack(): this
- // Brings the layer group to the top of all other layers
- bringToBack: function () {
- return this.invoke('bringToBack');
+ // @method setStyle( <Function> style ): this
+ // Changes styles of GeoJSON vector layers with the given style function.
+ setStyle: function (style) {
+ return this.eachLayer(function (layer) {
+ this._setLayerStyle(layer, style);
+ }, this);
},
- // @method getBounds(): LatLngBounds
- // Returns the LatLngBounds of the Feature Group (created from bounds and coordinates of its children).
- getBounds: function () {
- var bounds = new L.LatLngBounds();
-
- for (var id in this._layers) {
- var layer = this._layers[id];
- bounds.extend(layer.getBounds ? layer.getBounds() : layer.getLatLng());
+ _setLayerStyle: function (layer, style) {
+ if (layer.setStyle) {
+ if (typeof style === 'function') {
+ style = style(layer.feature);
+ }
+ layer.setStyle(style);
}
- return bounds;
}
});
-// @factory L.featureGroup(layers: Layer[])
-// Create a feature group, optionally given an initial set of layers.
-L.featureGroup = function (layers) {
- return new L.FeatureGroup(layers);
-};
+// @section
+// There are several static functions which can be called without instantiating L.GeoJSON:
+// @function geometryToLayer(featureData: Object, options?: GeoJSON options): Layer
+// Creates a `Layer` from a given GeoJSON feature. Can use a custom
+// [`pointToLayer`](#geojson-pointtolayer) and/or [`coordsToLatLng`](#geojson-coordstolatlng)
+// functions if provided as options.
+function geometryToLayer(geojson, options) {
+ var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson,
+ coords = geometry ? geometry.coordinates : null,
+ layers = [],
+ pointToLayer = options && options.pointToLayer,
+ _coordsToLatLng = options && options.coordsToLatLng || coordsToLatLng,
+ latlng, latlngs, i, len;
-/*
- * @class Renderer
- * @inherits Layer
- * @aka L.Renderer
- *
- * Base class for vector renderer implementations (`SVG`, `Canvas`). Handles the
- * DOM container of the renderer, its bounds, and its zoom animation.
- *
- * A `Renderer` works as an implicit layer group for all `Path`s - the renderer
- * itself can be added or removed to the map. All paths use a renderer, which can
- * be implicit (the map will decide the type of renderer and use it automatically)
- * or explicit (using the [`renderer`](#path-renderer) option of the path).
- *
- * Do not use this class directly, use `SVG` and `Canvas` instead.
- *
- * @event update: Event
- * Fired when the renderer updates its bounds, center and zoom, for example when
- * its map has moved
- */
+ if (!coords && !geometry) {
+ return null;
+ }
-L.Renderer = L.Layer.extend({
+ switch (geometry.type) {
+ case 'Point':
+ latlng = _coordsToLatLng(coords);
+ return _pointToLayer(pointToLayer, geojson, latlng, options);
- // @section
- // @aka Renderer options
- options: {
- // @option padding: Number = 0.1
- // How much to extend the clip area around the map view (relative to its size)
- // e.g. 0.1 would be 10% of map view in each direction
- padding: 0.1
- },
+ case 'MultiPoint':
+ for (i = 0, len = coords.length; i < len; i++) {
+ latlng = _coordsToLatLng(coords[i]);
+ layers.push(_pointToLayer(pointToLayer, geojson, latlng, options));
+ }
+ return new FeatureGroup(layers);
- initialize: function (options) {
- L.setOptions(this, options);
- L.stamp(this);
- this._layers = this._layers || {};
- },
+ case 'LineString':
+ case 'MultiLineString':
+ latlngs = coordsToLatLngs(coords, geometry.type === 'LineString' ? 0 : 1, _coordsToLatLng);
+ return new Polyline(latlngs, options);
- onAdd: function () {
- if (!this._container) {
- this._initContainer(); // defined by renderer implementations
+ case 'Polygon':
+ case 'MultiPolygon':
+ latlngs = coordsToLatLngs(coords, geometry.type === 'Polygon' ? 1 : 2, _coordsToLatLng);
+ return new Polygon(latlngs, options);
- if (this._zoomAnimated) {
- L.DomUtil.addClass(this._container, 'leaflet-zoom-animated');
+ case 'GeometryCollection':
+ for (i = 0, len = geometry.geometries.length; i < len; i++) {
+ var layer = geometryToLayer({
+ geometry: geometry.geometries[i],
+ type: 'Feature',
+ properties: geojson.properties
+ }, options);
+
+ if (layer) {
+ layers.push(layer);
}
}
+ return new FeatureGroup(layers);
- this.getPane().appendChild(this._container);
- this._update();
- this.on('update', this._updatePaths, this);
- },
+ default:
+ throw new Error('Invalid GeoJSON object.');
+ }
+}
- onRemove: function () {
- L.DomUtil.remove(this._container);
- this.off('update', this._updatePaths, this);
- },
+function _pointToLayer(pointToLayerFn, geojson, latlng, options) {
+ return pointToLayerFn ?
+ pointToLayerFn(geojson, latlng) :
+ new Marker(latlng, options && options.markersInheritOptions && options);
+}
- getEvents: function () {
- var events = {
- viewreset: this._reset,
- zoom: this._onZoom,
- moveend: this._update,
- zoomend: this._onZoomEnd
- };
- if (this._zoomAnimated) {
- events.zoomanim = this._onAnimZoom;
- }
- return events;
- },
+// @function coordsToLatLng(coords: Array): LatLng
+// Creates a `LatLng` object from an array of 2 numbers (longitude, latitude)
+// or 3 numbers (longitude, latitude, altitude) used in GeoJSON for points.
+function coordsToLatLng(coords) {
+ return new LatLng(coords[1], coords[0], coords[2]);
+}
- _onAnimZoom: function (ev) {
- this._updateTransform(ev.center, ev.zoom);
- },
+// @function coordsToLatLngs(coords: Array, levelsDeep?: Number, coordsToLatLng?: Function): Array
+// Creates a multidimensional array of `LatLng`s from a GeoJSON coordinates array.
+// `levelsDeep` specifies the nesting level (0 is for an array of points, 1 for an array of arrays of points, etc., 0 by default).
+// Can use a custom [`coordsToLatLng`](#geojson-coordstolatlng) function.
+function coordsToLatLngs(coords, levelsDeep, _coordsToLatLng) {
+ var latlngs = [];
- _onZoom: function () {
- this._updateTransform(this._map.getCenter(), this._map.getZoom());
- },
+ for (var i = 0, len = coords.length, latlng; i < len; i++) {
+ latlng = levelsDeep ?
+ coordsToLatLngs(coords[i], levelsDeep - 1, _coordsToLatLng) :
+ (_coordsToLatLng || coordsToLatLng)(coords[i]);
- _updateTransform: function (center, zoom) {
- var scale = this._map.getZoomScale(zoom, this._zoom),
- position = L.DomUtil.getPosition(this._container),
- viewHalf = this._map.getSize().multiplyBy(0.5 + this.options.padding),
- currentCenterPoint = this._map.project(this._center, zoom),
- destCenterPoint = this._map.project(center, zoom),
- centerOffset = destCenterPoint.subtract(currentCenterPoint),
+ latlngs.push(latlng);
+ }
- topLeftOffset = viewHalf.multiplyBy(-scale).add(position).add(viewHalf).subtract(centerOffset);
+ return latlngs;
+}
- if (L.Browser.any3d) {
- L.DomUtil.setTransform(this._container, topLeftOffset, scale);
- } else {
- L.DomUtil.setPosition(this._container, topLeftOffset);
- }
- },
+// @function latLngToCoords(latlng: LatLng, precision?: Number): Array
+// Reverse of [`coordsToLatLng`](#geojson-coordstolatlng)
+function latLngToCoords(latlng, precision) {
+ precision = typeof precision === 'number' ? precision : 6;
+ return latlng.alt !== undefined ?
+ [formatNum(latlng.lng, precision), formatNum(latlng.lat, precision), formatNum(latlng.alt, precision)] :
+ [formatNum(latlng.lng, precision), formatNum(latlng.lat, precision)];
+}
- _reset: function () {
- this._update();
- this._updateTransform(this._center, this._zoom);
+// @function latLngsToCoords(latlngs: Array, levelsDeep?: Number, closed?: Boolean): Array
+// Reverse of [`coordsToLatLngs`](#geojson-coordstolatlngs)
+// `closed` determines whether the first point should be appended to the end of the array to close the feature, only used when `levelsDeep` is 0. False by default.
+function latLngsToCoords(latlngs, levelsDeep, closed, precision) {
+ var coords = [];
- for (var id in this._layers) {
- this._layers[id]._reset();
- }
- },
+ for (var i = 0, len = latlngs.length; i < len; i++) {
+ coords.push(levelsDeep ?
+ latLngsToCoords(latlngs[i], levelsDeep - 1, closed, precision) :
+ latLngToCoords(latlngs[i], precision));
+ }
- _onZoomEnd: function () {
- for (var id in this._layers) {
- this._layers[id]._project();
- }
- },
+ if (!levelsDeep && closed) {
+ coords.push(coords[0]);
+ }
- _updatePaths: function () {
- for (var id in this._layers) {
- this._layers[id]._update();
- }
- },
+ return coords;
+}
- _update: function () {
- // Update pixel bounds of renderer container (for positioning/sizing/clipping later)
- // Subclasses are responsible of firing the 'update' event.
- var p = this.options.padding,
- size = this._map.getSize(),
- min = this._map.containerPointToLayerPoint(size.multiplyBy(-p)).round();
+function getFeature(layer, newGeometry) {
+ return layer.feature ?
+ extend({}, layer.feature, {geometry: newGeometry}) :
+ asFeature(newGeometry);
+}
- this._bounds = new L.Bounds(min, min.add(size.multiplyBy(1 + p * 2)).round());
+// @function asFeature(geojson: Object): Object
+// Normalize GeoJSON geometries/features into GeoJSON features.
+function asFeature(geojson) {
+ if (geojson.type === 'Feature' || geojson.type === 'FeatureCollection') {
+ return geojson;
+ }
- this._center = this._map.getCenter();
- this._zoom = this._map.getZoom();
+ return {
+ type: 'Feature',
+ properties: {},
+ geometry: geojson
+ };
+}
+
+var PointToGeoJSON = {
+ toGeoJSON: function (precision) {
+ return getFeature(this, {
+ type: 'Point',
+ coordinates: latLngToCoords(this.getLatLng(), precision)
+ });
+ }
+};
+
+// @namespace Marker
+// @section Other methods
+// @method toGeoJSON(precision?: Number): Object
+// `precision` is the number of decimal places for coordinates.
+// The default value is 6 places.
+// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the marker (as a GeoJSON `Point` Feature).
+Marker.include(PointToGeoJSON);
+
+// @namespace CircleMarker
+// @method toGeoJSON(precision?: Number): Object
+// `precision` is the number of decimal places for coordinates.
+// The default value is 6 places.
+// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the circle marker (as a GeoJSON `Point` Feature).
+Circle.include(PointToGeoJSON);
+CircleMarker.include(PointToGeoJSON);
+
+
+// @namespace Polyline
+// @method toGeoJSON(precision?: Number): Object
+// `precision` is the number of decimal places for coordinates.
+// The default value is 6 places.
+// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polyline (as a GeoJSON `LineString` or `MultiLineString` Feature).
+Polyline.include({
+ toGeoJSON: function (precision) {
+ var multi = !isFlat(this._latlngs);
+
+ var coords = latLngsToCoords(this._latlngs, multi ? 1 : 0, false, precision);
+
+ return getFeature(this, {
+ type: (multi ? 'Multi' : '') + 'LineString',
+ coordinates: coords
+ });
}
});
+// @namespace Polygon
+// @method toGeoJSON(precision?: Number): Object
+// `precision` is the number of decimal places for coordinates.
+// The default value is 6 places.
+// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polygon (as a GeoJSON `Polygon` or `MultiPolygon` Feature).
+Polygon.include({
+ toGeoJSON: function (precision) {
+ var holes = !isFlat(this._latlngs),
+ multi = holes && !isFlat(this._latlngs[0]);
-L.Map.include({
- // @namespace Map; @method getRenderer(layer: Path): Renderer
- // Returns the instance of `Renderer` that should be used to render the given
- // `Path`. It will ensure that the `renderer` options of the map and paths
- // are respected, and that the renderers do exist on the map.
- getRenderer: function (layer) {
- // @namespace Path; @option renderer: Renderer
- // Use this specific instance of `Renderer` for this path. Takes
- // precedence over the map's [default renderer](#map-renderer).
- var renderer = layer.options.renderer || this._getPaneRenderer(layer.options.pane) || this.options.renderer || this._renderer;
+ var coords = latLngsToCoords(this._latlngs, multi ? 2 : holes ? 1 : 0, true, precision);
- if (!renderer) {
- // @namespace Map; @option preferCanvas: Boolean = false
- // Whether `Path`s should be rendered on a `Canvas` renderer.
- // By default, all `Path`s are rendered in a `SVG` renderer.
- renderer = this._renderer = (this.options.preferCanvas && L.canvas()) || L.svg();
+ if (!holes) {
+ coords = [coords];
}
- if (!this.hasLayer(renderer)) {
- this.addLayer(renderer);
- }
- return renderer;
+ return getFeature(this, {
+ type: (multi ? 'Multi' : '') + 'Polygon',
+ coordinates: coords
+ });
+ }
+});
+
+
+// @namespace LayerGroup
+LayerGroup.include({
+ toMultiPoint: function (precision) {
+ var coords = [];
+
+ this.eachLayer(function (layer) {
+ coords.push(layer.toGeoJSON(precision).geometry.coordinates);
+ });
+
+ return getFeature(this, {
+ type: 'MultiPoint',
+ coordinates: coords
+ });
},
- _getPaneRenderer: function (name) {
- if (name === 'overlayPane' || name === undefined) {
- return false;
+ // @method toGeoJSON(precision?: Number): Object
+ // `precision` is the number of decimal places for coordinates.
+ // The default value is 6 places.
+ // Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the layer group (as a GeoJSON `FeatureCollection`, `GeometryCollection`, or `MultiPoint`).
+ toGeoJSON: function (precision) {
+
+ var type = this.feature && this.feature.geometry && this.feature.geometry.type;
+
+ if (type === 'MultiPoint') {
+ return this.toMultiPoint(precision);
}
- var renderer = this._paneRenderers[name];
- if (renderer === undefined) {
- renderer = (L.SVG && L.svg({pane: name})) || (L.Canvas && L.canvas({pane: name}));
- this._paneRenderers[name] = renderer;
+ var isGeometryCollection = type === 'GeometryCollection',
+ jsons = [];
+
+ this.eachLayer(function (layer) {
+ if (layer.toGeoJSON) {
+ var json = layer.toGeoJSON(precision);
+ if (isGeometryCollection) {
+ jsons.push(json.geometry);
+ } else {
+ var feature = asFeature(json);
+ // Squash nested feature collections
+ if (feature.type === 'FeatureCollection') {
+ jsons.push.apply(jsons, feature.features);
+ } else {
+ jsons.push(feature);
+ }
+ }
+ }
+ });
+
+ if (isGeometryCollection) {
+ return getFeature(this, {
+ geometries: jsons,
+ type: 'GeometryCollection'
+ });
}
- return renderer;
+
+ return {
+ type: 'FeatureCollection',
+ features: jsons
+ };
}
});
+// @namespace GeoJSON
+// @factory L.geoJSON(geojson?: Object, options?: GeoJSON options)
+// Creates a GeoJSON layer. Optionally accepts an object in
+// [GeoJSON format](https://tools.ietf.org/html/rfc7946) to display on the map
+// (you can alternatively add it later with `addData` method) and an `options` object.
+function geoJSON(geojson, options) {
+ return new GeoJSON(geojson, options);
+}
+// Backward compatibility.
+var geoJson = geoJSON;
/*
- * @class Path
- * @aka L.Path
+ * @class ImageOverlay
+ * @aka L.ImageOverlay
* @inherits Interactive layer
*
- * An abstract class that contains options and constants shared between vector
- * overlays (Polygon, Polyline, Circle). Do not use it directly. Extends `Layer`.
+ * Used to load and display a single image over specific bounds of the map. Extends `Layer`.
+ *
+ * @example
+ *
+ * ```js
+ * var imageUrl = 'http://www.lib.utexas.edu/maps/historical/newark_nj_1922.jpg',
+ * imageBounds = [[40.712216, -74.22655], [40.773941, -74.12544]];
+ * L.imageOverlay(imageUrl, imageBounds).addTo(map);
+ * ```
*/
-L.Path = L.Layer.extend({
+var ImageOverlay = Layer.extend({
// @section
- // @aka Path options
+ // @aka ImageOverlay options
options: {
- // @option stroke: Boolean = true
- // Whether to draw stroke along the path. Set it to `false` to disable borders on polygons or circles.
- stroke: true,
-
- // @option color: String = '#3388ff'
- // Stroke color
- color: '#3388ff',
-
- // @option weight: Number = 3
- // Stroke width in pixels
- weight: 3,
-
// @option opacity: Number = 1.0
- // Stroke opacity
+ // The opacity of the image overlay.
opacity: 1,
- // @option lineCap: String= 'round'
- // A string that defines [shape to be used at the end](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linecap) of the stroke.
- lineCap: 'round',
+ // @option alt: String = ''
+ // Text for the `alt` attribute of the image (useful for accessibility).
+ alt: '',
- // @option lineJoin: String = 'round'
- // A string that defines [shape to be used at the corners](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-linejoin) of the stroke.
- lineJoin: 'round',
+ // @option interactive: Boolean = false
+ // If `true`, the image overlay will emit [mouse events](#interactive-layer) when clicked or hovered.
+ interactive: false,
- // @option dashArray: String = null
- // A string that defines the stroke [dash pattern](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dasharray). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility).
- dashArray: null,
+ // @option crossOrigin: Boolean|String = false
+ // Whether the crossOrigin attribute will be added to the image.
+ // If a String is provided, the image will have its crossOrigin attribute set to the String provided. This is needed if you want to access image pixel data.
+ // Refer to [CORS Settings](https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_settings_attributes) for valid String values.
+ crossOrigin: false,
- // @option dashOffset: String = null
- // A string that defines the [distance into the dash pattern to start the dash](https://developer.mozilla.org/docs/Web/SVG/Attribute/stroke-dashoffset). Doesn't work on `Canvas`-powered layers in [some old browsers](https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility).
- dashOffset: null,
+ // @option errorOverlayUrl: String = ''
+ // URL to the overlay image to show in place of the overlay that failed to load.
+ errorOverlayUrl: '',
- // @option fill: Boolean = depends
- // Whether to fill the path with color. Set it to `false` to disable filling on polygons or circles.
- fill: false,
+ // @option zIndex: Number = 1
+ // The explicit [zIndex](https://developer.mozilla.org/docs/Web/CSS/CSS_Positioning/Understanding_z_index) of the overlay layer.
+ zIndex: 1,
- // @option fillColor: String = *
- // Fill color. Defaults to the value of the [`color`](#path-color) option
- fillColor: null,
+ // @option className: String = ''
+ // A custom class name to assign to the image. Empty by default.
+ className: ''
+ },
- // @option fillOpacity: Number = 0.2
- // Fill opacity.
- fillOpacity: 0.2,
+ initialize: function (url, bounds, options) { // (String, LatLngBounds, Object)
+ this._url = url;
+ this._bounds = toLatLngBounds(bounds);
- // @option fillRule: String = 'evenodd'
- // A string that defines [how the inside of a shape](https://developer.mozilla.org/docs/Web/SVG/Attribute/fill-rule) is determined.
- fillRule: 'evenodd',
+ setOptions(this, options);
+ },
- // className: '',
+ onAdd: function () {
+ if (!this._image) {
+ this._initImage();
- // Option inherited from "Interactive layer" abstract class
- interactive: true
- },
+ if (this.options.opacity < 1) {
+ this._updateOpacity();
+ }
+ }
- beforeAdd: function (map) {
- // Renderer is set here because we need to call renderer.getEvents
- // before this.getEvents.
- this._renderer = map.getRenderer(this);
- },
+ if (this.options.interactive) {
+ addClass(this._image, 'leaflet-interactive');
+ this.addInteractiveTarget(this._image);
+ }
- onAdd: function () {
- this._renderer._initPath(this);
+ this.getPane().appendChild(this._image);
this._reset();
- this._renderer._addPath(this);
},
onRemove: function () {
- this._renderer._removePath(this);
+ remove(this._image);
+ if (this.options.interactive) {
+ this.removeInteractiveTarget(this._image);
+ }
},
- // @method redraw(): this
- // Redraws the layer. Sometimes useful after you changed the coordinates that the path uses.
- redraw: function () {
- if (this._map) {
- this._renderer._updatePath(this);
+ // @method setOpacity(opacity: Number): this
+ // Sets the opacity of the overlay.
+ setOpacity: function (opacity) {
+ this.options.opacity = opacity;
+
+ if (this._image) {
+ this._updateOpacity();
}
return this;
},
- // @method setStyle(style: Path options): this
- // Changes the appearance of a Path based on the options in the `Path options` object.
- setStyle: function (style) {
- L.setOptions(this, style);
- if (this._renderer) {
- this._renderer._updateStyle(this);
+ setStyle: function (styleOpts) {
+ if (styleOpts.opacity) {
+ this.setOpacity(styleOpts.opacity);
}
return this;
},
// @method bringToFront(): this
- // Brings the layer to the top of all path layers.
+ // Brings the layer to the top of all overlays.
bringToFront: function () {
- if (this._renderer) {
- this._renderer._bringToFront(this);
+ if (this._map) {
+ toFront(this._image);
}
return this;
},
// @method bringToBack(): this
- // Brings the layer to the bottom of all path layers.
+ // Brings the layer to the bottom of all overlays.
bringToBack: function () {
- if (this._renderer) {
- this._renderer._bringToBack(this);
+ if (this._map) {
+ toBack(this._image);
}
return this;
},
- getElement: function () {
- return this._path;
- },
+ // @method setUrl(url: String): this
+ // Changes the URL of the image.
+ setUrl: function (url) {
+ this._url = url;
- _reset: function () {
- // defined in children classes
- this._project();
- this._update();
+ if (this._image) {
+ this._image.src = url;
+ }
+ return this;
},
- _clickTolerance: function () {
- // used when doing hit detection for Canvas layers
- return (this.options.stroke ? this.options.weight / 2 : 0) + (L.Browser.touch ? 10 : 0);
- }
-});
-
-
-
-/*
- * @namespace LineUtil
- *
- * Various utility functions for polyine points processing, used by Leaflet internally to make polylines lightning-fast.
- */
-
-L.LineUtil = {
-
- // Simplify polyline with vertex reduction and Douglas-Peucker simplification.
- // Improves rendering performance dramatically by lessening the number of points to draw.
+ // @method setBounds(bounds: LatLngBounds): this
+ // Update the bounds that this ImageOverlay covers
+ setBounds: function (bounds) {
+ this._bounds = toLatLngBounds(bounds);
- // @function simplify(points: Point[], tolerance: Number): Point[]
- // Dramatically reduces the number of points in a polyline while retaining
- // its shape and returns a new array of simplified points, using the
- // [Douglas-Peucker algorithm](http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm).
- // Used for a huge performance boost when processing/displaying Leaflet polylines for
- // each zoom level and also reducing visual noise. tolerance affects the amount of
- // simplification (lesser value means higher quality but slower and with more points).
- // Also released as a separated micro-library [Simplify.js](http://mourner.github.com/simplify-js/).
- simplify: function (points, tolerance) {
- if (!tolerance || !points.length) {
- return points.slice();
+ if (this._map) {
+ this._reset();
}
+ return this;
+ },
- var sqTolerance = tolerance * tolerance;
-
- // stage 1: vertex reduction
- points = this._reducePoints(points, sqTolerance);
+ getEvents: function () {
+ var events = {
+ zoom: this._reset,
+ viewreset: this._reset
+ };
- // stage 2: Douglas-Peucker simplification
- points = this._simplifyDP(points, sqTolerance);
+ if (this._zoomAnimated) {
+ events.zoomanim = this._animateZoom;
+ }
- return points;
+ return events;
},
- // @function pointToSegmentDistance(p: Point, p1: Point, p2: Point): Number
- // Returns the distance between point `p` and segment `p1` to `p2`.
- pointToSegmentDistance: function (p, p1, p2) {
- return Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true));
+ // @method setZIndex(value: Number): this
+ // Changes the [zIndex](#imageoverlay-zindex) of the image overlay.
+ setZIndex: function (value) {
+ this.options.zIndex = value;
+ this._updateZIndex();
+ return this;
},
- // @function closestPointOnSegment(p: Point, p1: Point, p2: Point): Number
- // Returns the closest point from a point `p` on a segment `p1` to `p2`.
- closestPointOnSegment: function (p, p1, p2) {
- return this._sqClosestPointOnSegment(p, p1, p2);
+ // @method getBounds(): LatLngBounds
+ // Get the bounds that this ImageOverlay covers
+ getBounds: function () {
+ return this._bounds;
},
- // Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm
- _simplifyDP: function (points, sqTolerance) {
+ // @method getElement(): HTMLElement
+ // Returns the instance of [`HTMLImageElement`](https://developer.mozilla.org/docs/Web/API/HTMLImageElement)
+ // used by this overlay.
+ getElement: function () {
+ return this._image;
+ },
- var len = points.length,
- ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array,
- markers = new ArrayConstructor(len);
+ _initImage: function () {
+ var wasElementSupplied = this._url.tagName === 'IMG';
+ var img = this._image = wasElementSupplied ? this._url : create$1('img');
- markers[0] = markers[len - 1] = 1;
+ addClass(img, 'leaflet-image-layer');
+ if (this._zoomAnimated) { addClass(img, 'leaflet-zoom-animated'); }
+ if (this.options.className) { addClass(img, this.options.className); }
- this._simplifyDPStep(points, markers, sqTolerance, 0, len - 1);
+ img.onselectstart = falseFn;
+ img.onmousemove = falseFn;
- var i,
- newPoints = [];
+ // @event load: Event
+ // Fired when the ImageOverlay layer has loaded its image
+ img.onload = bind(this.fire, this, 'load');
+ img.onerror = bind(this._overlayOnError, this, 'error');
- for (i = 0; i < len; i++) {
- if (markers[i]) {
- newPoints.push(points[i]);
- }
+ if (this.options.crossOrigin || this.options.crossOrigin === '') {
+ img.crossOrigin = this.options.crossOrigin === true ? '' : this.options.crossOrigin;
}
- 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 (this.options.zIndex) {
+ this._updateZIndex();
}
- if (maxSqDist > sqTolerance) {
- markers[index] = 1;
-
- this._simplifyDPStep(points, markers, sqTolerance, first, index);
- this._simplifyDPStep(points, markers, sqTolerance, index, last);
+ if (wasElementSupplied) {
+ this._url = img.src;
+ return;
}
- },
- // 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;
+ img.src = this._url;
+ img.alt = this.options.alt;
},
+ _animateZoom: function (e) {
+ var scale = this._map.getZoomScale(e.zoom),
+ offset = this._map._latLngBoundsToNewLayerBounds(this._bounds, e.zoom, e.center).min;
- // @function clipSegment(a: Point, b: Point, bounds: Bounds, useLastCode?: Boolean, round?: Boolean): Point[]|Boolean
- // Clips the segment a to b by rectangular bounds with the
- // [Cohen-Sutherland algorithm](https://en.wikipedia.org/wiki/Cohen%E2%80%93Sutherland_algorithm)
- // (modifying the segment points directly!). Used by Leaflet to only show polyline
- // points that are on the screen or near, increasing performance.
- clipSegment: function (a, b, bounds, useLastCode, round) {
- var codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds),
- codeB = this._getBitCode(b, bounds),
-
- codeOut, p, newCode;
+ setTransform(this._image, offset, scale);
+ },
- // save 2nd code to avoid calculating it on the next segment
- this._lastCode = codeB;
+ _reset: function () {
+ var image = this._image,
+ bounds = new Bounds(
+ this._map.latLngToLayerPoint(this._bounds.getNorthWest()),
+ this._map.latLngToLayerPoint(this._bounds.getSouthEast())),
+ size = bounds.getSize();
- while (true) {
- // if a,b is inside the clip window (trivial accept)
- if (!(codeA | codeB)) {
- return [a, b];
- }
+ setPosition(image, bounds.min);
- // if a,b is outside the clip window (trivial reject)
- if (codeA & codeB) {
- return false;
- }
+ image.style.width = size.x + 'px';
+ image.style.height = size.y + 'px';
+ },
- // other cases
- codeOut = codeA || codeB;
- p = this._getEdgeIntersection(a, b, codeOut, bounds, round);
- newCode = this._getBitCode(p, bounds);
+ _updateOpacity: function () {
+ setOpacity(this._image, this.options.opacity);
+ },
- if (codeOut === codeA) {
- a = p;
- codeA = newCode;
- } else {
- b = p;
- codeB = newCode;
- }
+ _updateZIndex: function () {
+ if (this._image && this.options.zIndex !== undefined && this.options.zIndex !== null) {
+ this._image.style.zIndex = this.options.zIndex;
}
},
- _getEdgeIntersection: function (a, b, code, bounds, round) {
- var dx = b.x - a.x,
- dy = b.y - a.y,
- min = bounds.min,
- max = bounds.max,
- x, y;
-
- if (code & 8) { // top
- x = a.x + dx * (max.y - a.y) / dy;
- y = max.y;
-
- } else if (code & 4) { // bottom
- x = a.x + dx * (min.y - a.y) / dy;
- y = min.y;
+ _overlayOnError: function () {
+ // @event error: Event
+ // Fired when the ImageOverlay layer fails to load its image
+ this.fire('error');
- } else if (code & 2) { // right
- x = max.x;
- y = a.y + dy * (max.x - a.x) / dx;
-
- } else if (code & 1) { // left
- x = min.x;
- y = a.y + dy * (min.x - a.x) / dx;
+ var errorUrl = this.options.errorOverlayUrl;
+ if (errorUrl && this._url !== errorUrl) {
+ this._url = errorUrl;
+ this._image.src = errorUrl;
}
+ }
+});
- return new L.Point(x, y, round);
- },
+// @factory L.imageOverlay(imageUrl: String, bounds: LatLngBounds, options?: ImageOverlay options)
+// Instantiates an image overlay object given the URL of the image and the
+// geographical bounds it is tied to.
+var imageOverlay = function (url, bounds, options) {
+ return new ImageOverlay(url, bounds, options);
+};
- _getBitCode: function (p, bounds) {
- var code = 0;
+/*
+ * @class VideoOverlay
+ * @aka L.VideoOverlay
+ * @inherits ImageOverlay
+ *
+ * Used to load and display a video player over specific bounds of the map. Extends `ImageOverlay`.
+ *
+ * A video overlay uses the [`<video>`](https://developer.mozilla.org/docs/Web/HTML/Element/video)
+ * HTML5 element.
+ *
+ * @example
+ *
+ * ```js
+ * var videoUrl = 'https://www.mapbox.com/bites/00188/patricia_nasa.webm',
+ * videoBounds = [[ 32, -130], [ 13, -100]];
+ * L.videoOverlay(videoUrl, videoBounds ).addTo(map);
+ * ```
+ */
- if (p.x < bounds.min.x) { // left
- code |= 1;
- } else if (p.x > bounds.max.x) { // right
- code |= 2;
- }
+var VideoOverlay = ImageOverlay.extend({
- if (p.y < bounds.min.y) { // bottom
- code |= 4;
- } else if (p.y > bounds.max.y) { // top
- code |= 8;
- }
+ // @section
+ // @aka VideoOverlay options
+ options: {
+ // @option autoplay: Boolean = true
+ // Whether the video starts playing automatically when loaded.
+ autoplay: true,
+
+ // @option loop: Boolean = true
+ // Whether the video will loop back to the beginning when played.
+ loop: true,
- return code;
+ // @option keepAspectRatio: Boolean = true
+ // Whether the video will save aspect ratio after the projection.
+ // Relevant for supported browsers. Browser compatibility- https://developer.mozilla.org/en-US/docs/Web/CSS/object-fit
+ keepAspectRatio: true
},
- // square distance (to avoid unnecessary Math.sqrt calls)
- _sqDist: function (p1, p2) {
- var dx = p2.x - p1.x,
- dy = p2.y - p1.y;
- return dx * dx + dy * dy;
- },
+ _initImage: function () {
+ var wasElementSupplied = this._url.tagName === 'VIDEO';
+ var vid = this._image = wasElementSupplied ? this._url : create$1('video');
+
+ addClass(vid, 'leaflet-image-layer');
+ if (this._zoomAnimated) { addClass(vid, 'leaflet-zoom-animated'); }
+ if (this.options.className) { addClass(vid, this.options.className); }
- // 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;
+ vid.onselectstart = falseFn;
+ vid.onmousemove = falseFn;
- if (dot > 0) {
- t = ((p.x - x) * dx + (p.y - y) * dy) / dot;
+ // @event load: Event
+ // Fired when the video has finished loading the first frame
+ vid.onloadeddata = bind(this.fire, this, 'load');
- if (t > 1) {
- x = p2.x;
- y = p2.y;
- } else if (t > 0) {
- x += dx * t;
- y += dy * t;
+ if (wasElementSupplied) {
+ var sourceElements = vid.getElementsByTagName('source');
+ var sources = [];
+ for (var j = 0; j < sourceElements.length; j++) {
+ sources.push(sourceElements[j].src);
}
+
+ this._url = (sourceElements.length > 0) ? sources : [vid.src];
+ return;
}
- dx = p.x - x;
- dy = p.y - y;
+ if (!isArray(this._url)) { this._url = [this._url]; }
- return sqDist ? dx * dx + dy * dy : new L.Point(x, y);
+ if (!this.options.keepAspectRatio && vid.style.hasOwnProperty('objectFit')) { vid.style['objectFit'] = 'fill'; }
+ vid.autoplay = !!this.options.autoplay;
+ vid.loop = !!this.options.loop;
+ for (var i = 0; i < this._url.length; i++) {
+ var source = create$1('source');
+ source.src = this._url[i];
+ vid.appendChild(source);
+ }
}
-};
+
+ // @method getElement(): HTMLVideoElement
+ // Returns the instance of [`HTMLVideoElement`](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement)
+ // used by this overlay.
+});
+// @factory L.videoOverlay(video: String|Array|HTMLVideoElement, bounds: LatLngBounds, options?: VideoOverlay options)
+// Instantiates an image overlay object given the URL of the video (or array of URLs, or even a video element) and the
+// geographical bounds it is tied to.
+
+function videoOverlay(video, bounds, options) {
+ return new VideoOverlay(video, bounds, options);
+}
/*
- * @class Polyline
- * @aka L.Polyline
- * @inherits Path
- *
- * A class for drawing polyline overlays on a map. Extends `Path`.
+ * @class SVGOverlay
+ * @aka L.SVGOverlay
+ * @inherits ImageOverlay
*
- * @example
- *
- * ```js
- * // create a red polyline from an array of LatLng points
- * var latlngs = [
- * [45.51, -122.68],
- * [37.77, -122.43],
- * [34.04, -118.2]
- * ];
- *
- * var polyline = L.polyline(latlngs, {color: 'red'}).addTo(map);
+ * Used to load, display and provide DOM access to an SVG file over specific bounds of the map. Extends `ImageOverlay`.
*
- * // zoom the map to the polyline
- * map.fitBounds(polyline.getBounds());
- * ```
+ * An SVG overlay uses the [`<svg>`](https://developer.mozilla.org/docs/Web/SVG/Element/svg) element.
*
- * You can also pass a multi-dimensional array to represent a `MultiPolyline` shape:
+ * @example
*
* ```js
- * // create a red polyline from an array of arrays of LatLng points
- * var latlngs = [
- * [[45.51, -122.68],
- * [37.77, -122.43],
- * [34.04, -118.2]],
- * [[40.78, -73.91],
- * [41.83, -87.62],
- * [32.76, -96.72]]
- * ];
+ * var svgElement = document.createElementNS("http://www.w3.org/2000/svg", "svg");
+ * svgElement.setAttribute('xmlns', "http://www.w3.org/2000/svg");
+ * svgElement.setAttribute('viewBox', "0 0 200 200");
+ * svgElement.innerHTML = '<rect width="200" height="200"/><rect x="75" y="23" width="50" height="50" style="fill:red"/><rect x="75" y="123" width="50" height="50" style="fill:#0013ff"/>';
+ * var svgElementBounds = [ [ 32, -130 ], [ 13, -100 ] ];
+ * L.svgOverlay(svgElement, svgElementBounds).addTo(map);
* ```
*/
-L.Polyline = L.Path.extend({
+var SVGOverlay = ImageOverlay.extend({
+ _initImage: function () {
+ var el = this._image = this._url;
- // @section
- // @aka Polyline options
- options: {
- // @option smoothFactor: Number = 1.0
- // How much to simplify the polyline on each zoom level. More means
- // better performance and smoother look, and less means more accurate representation.
- smoothFactor: 1.0,
+ addClass(el, 'leaflet-image-layer');
+ if (this._zoomAnimated) { addClass(el, 'leaflet-zoom-animated'); }
+ if (this.options.className) { addClass(el, this.options.className); }
- // @option noClip: Boolean = false
- // Disable polyline clipping.
- noClip: false
- },
+ el.onselectstart = falseFn;
+ el.onmousemove = falseFn;
+ }
- initialize: function (latlngs, options) {
- L.setOptions(this, options);
- this._setLatLngs(latlngs);
- },
+ // @method getElement(): SVGElement
+ // Returns the instance of [`SVGElement`](https://developer.mozilla.org/docs/Web/API/SVGElement)
+ // used by this overlay.
+});
- // @method getLatLngs(): LatLng[]
- // Returns an array of the points in the path, or nested arrays of points in case of multi-polyline.
- getLatLngs: function () {
- return this._latlngs;
- },
- // @method setLatLngs(latlngs: LatLng[]): this
- // Replaces all the points in the polyline with the given array of geographical points.
- setLatLngs: function (latlngs) {
- this._setLatLngs(latlngs);
- return this.redraw();
- },
+// @factory L.svgOverlay(svg: String|SVGElement, bounds: LatLngBounds, options?: SVGOverlay options)
+// Instantiates an image overlay object given an SVG element and the geographical bounds it is tied to.
+// A viewBox attribute is required on the SVG element to zoom in and out properly.
- // @method isEmpty(): Boolean
- // Returns `true` if the Polyline has no LatLngs.
- isEmpty: function () {
- return !this._latlngs.length;
- },
+function svgOverlay(el, bounds, options) {
+ return new SVGOverlay(el, bounds, options);
+}
- closestLayerPoint: function (p) {
- var minDistance = Infinity,
- minPoint = null,
- closest = L.LineUtil._sqClosestPointOnSegment,
- p1, p2;
+/*
+ * @class DivOverlay
+ * @inherits Layer
+ * @aka L.DivOverlay
+ * Base model for L.Popup and L.Tooltip. Inherit from it for custom popup like plugins.
+ */
- for (var j = 0, jLen = this._parts.length; j < jLen; j++) {
- var points = this._parts[j];
+// @namespace DivOverlay
+var DivOverlay = Layer.extend({
- for (var i = 1, len = points.length; i < len; i++) {
- p1 = points[i - 1];
- p2 = points[i];
+ // @section
+ // @aka DivOverlay options
+ options: {
+ // @option offset: Point = Point(0, 7)
+ // The offset of the popup position. Useful to control the anchor
+ // of the popup when opening it on some overlays.
+ offset: [0, 7],
- var sqDist = closest(p, p1, p2, true);
+ // @option className: String = ''
+ // A custom CSS class name to assign to the popup.
+ className: '',
- if (sqDist < minDistance) {
- minDistance = sqDist;
- minPoint = closest(p, p1, p2);
- }
- }
- }
- if (minPoint) {
- minPoint.distance = Math.sqrt(minDistance);
- }
- return minPoint;
+ // @option pane: String = 'popupPane'
+ // `Map pane` where the popup will be added.
+ pane: 'popupPane'
},
- // @method getCenter(): LatLng
- // Returns the center ([centroid](http://en.wikipedia.org/wiki/Centroid)) of the polyline.
- getCenter: function () {
- // throws error when not yet added to map as this center calculation requires projected coordinates
- if (!this._map) {
- throw new Error('Must add layer to map before using getCenter()');
- }
-
- var i, halfDist, segDist, dist, p1, p2, ratio,
- points = this._rings[0],
- len = points.length;
+ initialize: function (options, source) {
+ setOptions(this, options);
- if (!len) { return null; }
+ this._source = source;
+ },
- // polyline centroid algorithm; only uses the first ring if there are multiple
+ onAdd: function (map) {
+ this._zoomAnimated = map._zoomAnimated;
- for (i = 0, halfDist = 0; i < len - 1; i++) {
- halfDist += points[i].distanceTo(points[i + 1]) / 2;
+ if (!this._container) {
+ this._initLayout();
}
- // The line is so small in the current view that all points are on the same pixel.
- if (halfDist === 0) {
- return this._map.layerPointToLatLng(points[0]);
+ if (map._fadeAnimated) {
+ setOpacity(this._container, 0);
}
- for (i = 0, dist = 0; i < len - 1; i++) {
- p1 = points[i];
- p2 = points[i + 1];
- segDist = p1.distanceTo(p2);
- dist += segDist;
+ clearTimeout(this._removeTimeout);
+ this.getPane().appendChild(this._container);
+ this.update();
- if (dist > halfDist) {
- ratio = (dist - halfDist) / segDist;
- return this._map.layerPointToLatLng([
- p2.x - ratio * (p2.x - p1.x),
- p2.y - ratio * (p2.y - p1.y)
- ]);
- }
+ if (map._fadeAnimated) {
+ setOpacity(this._container, 1);
}
- },
-
- // @method getBounds(): LatLngBounds
- // Returns the `LatLngBounds` of the path.
- getBounds: function () {
- return this._bounds;
- },
- // @method addLatLng(latlng: LatLng, latlngs? LatLng[]): this
- // Adds a given point to the polyline. By default, adds to the first ring of
- // the polyline in case of a multi-polyline, but can be overridden by passing
- // a specific ring as a LatLng array (that you can earlier access with [`getLatLngs`](#polyline-getlatlngs)).
- addLatLng: function (latlng, latlngs) {
- latlngs = latlngs || this._defaultShape();
- latlng = L.latLng(latlng);
- latlngs.push(latlng);
- this._bounds.extend(latlng);
- return this.redraw();
+ this.bringToFront();
},
- _setLatLngs: function (latlngs) {
- this._bounds = new L.LatLngBounds();
- this._latlngs = this._convertLatLngs(latlngs);
+ onRemove: function (map) {
+ if (map._fadeAnimated) {
+ setOpacity(this._container, 0);
+ this._removeTimeout = setTimeout(bind(remove, undefined, this._container), 200);
+ } else {
+ remove(this._container);
+ }
},
- _defaultShape: function () {
- return L.Polyline._flat(this._latlngs) ? this._latlngs : this._latlngs[0];
+ // @namespace Popup
+ // @method getLatLng: LatLng
+ // Returns the geographical point of popup.
+ getLatLng: function () {
+ return this._latlng;
},
- // recursively convert latlngs input into actual LatLng instances; calculate bounds along the way
- _convertLatLngs: function (latlngs) {
- var result = [],
- flat = L.Polyline._flat(latlngs);
-
- for (var i = 0, len = latlngs.length; i < len; i++) {
- if (flat) {
- result[i] = L.latLng(latlngs[i]);
- this._bounds.extend(result[i]);
- } else {
- result[i] = this._convertLatLngs(latlngs[i]);
- }
+ // @method setLatLng(latlng: LatLng): this
+ // Sets the geographical point where the popup will open.
+ setLatLng: function (latlng) {
+ this._latlng = toLatLng(latlng);
+ if (this._map) {
+ this._updatePosition();
+ this._adjustPan();
}
-
- return result;
+ return this;
},
- _project: function () {
- var pxBounds = new L.Bounds();
- this._rings = [];
- this._projectLatlngs(this._latlngs, this._rings, pxBounds);
-
- var w = this._clickTolerance(),
- p = new L.Point(w, w);
-
- if (this._bounds.isValid() && pxBounds.isValid()) {
- pxBounds.min._subtract(p);
- pxBounds.max._add(p);
- this._pxBounds = pxBounds;
- }
+ // @method getContent: String|HTMLElement
+ // Returns the content of the popup.
+ getContent: function () {
+ return this._content;
},
- // recursively turns latlngs into a set of rings with projected coordinates
- _projectLatlngs: function (latlngs, result, projectedBounds) {
- var flat = latlngs[0] instanceof L.LatLng,
- len = latlngs.length,
- i, ring;
-
- if (flat) {
- ring = [];
- for (i = 0; i < len; i++) {
- ring[i] = this._map.latLngToLayerPoint(latlngs[i]);
- projectedBounds.extend(ring[i]);
- }
- result.push(ring);
- } else {
- for (i = 0; i < len; i++) {
- this._projectLatlngs(latlngs[i], result, projectedBounds);
- }
- }
+ // @method setContent(htmlContent: String|HTMLElement|Function): this
+ // Sets the HTML content of the popup. If a function is passed the source layer will be passed to the function. The function should return a `String` or `HTMLElement` to be used in the popup.
+ setContent: function (content) {
+ this._content = content;
+ this.update();
+ return this;
},
- // clip polyline by renderer bounds so that we have less to render for performance
- _clipPoints: function () {
- var bounds = this._renderer._bounds;
-
- this._parts = [];
- if (!this._pxBounds || !this._pxBounds.intersects(bounds)) {
- return;
- }
-
- if (this.options.noClip) {
- this._parts = this._rings;
- return;
- }
-
- var parts = this._parts,
- i, j, k, len, len2, segment, points;
+ // @method getElement: String|HTMLElement
+ // Alias for [getContent()](#popup-getcontent)
+ getElement: function () {
+ return this._container;
+ },
- for (i = 0, k = 0, len = this._rings.length; i < len; i++) {
- points = this._rings[i];
+ // @method update: null
+ // Updates the popup content, layout and position. Useful for updating the popup after something inside changed, e.g. image loaded.
+ update: function () {
+ if (!this._map) { return; }
- for (j = 0, len2 = points.length; j < len2 - 1; j++) {
- segment = L.LineUtil.clipSegment(points[j], points[j + 1], bounds, j, true);
+ this._container.style.visibility = 'hidden';
- if (!segment) { continue; }
+ this._updateContent();
+ this._updateLayout();
+ this._updatePosition();
- parts[k] = parts[k] || [];
- parts[k].push(segment[0]);
+ this._container.style.visibility = '';
- // if segment goes out of screen, or it's the last one, it's the end of the line part
- if ((segment[1] !== points[j + 1]) || (j === len2 - 2)) {
- parts[k].push(segment[1]);
- k++;
- }
- }
- }
+ this._adjustPan();
},
- // simplify each clipped part of the polyline for performance
- _simplifyPoints: function () {
- var parts = this._parts,
- tolerance = this.options.smoothFactor;
+ getEvents: function () {
+ var events = {
+ zoom: this._updatePosition,
+ viewreset: this._updatePosition
+ };
- for (var i = 0, len = parts.length; i < len; i++) {
- parts[i] = L.LineUtil.simplify(parts[i], tolerance);
+ if (this._zoomAnimated) {
+ events.zoomanim = this._animateZoom;
}
+ return events;
},
- _update: function () {
- if (!this._map) { return; }
+ // @method isOpen: Boolean
+ // Returns `true` when the popup is visible on the map.
+ isOpen: function () {
+ return !!this._map && this._map.hasLayer(this);
+ },
- this._clipPoints();
- this._simplifyPoints();
- this._updatePath();
+ // @method bringToFront: this
+ // Brings this popup in front of other popups (in the same map pane).
+ bringToFront: function () {
+ if (this._map) {
+ toFront(this._container);
+ }
+ return this;
},
- _updatePath: function () {
- this._renderer._updatePoly(this);
- }
-});
+ // @method bringToBack: this
+ // Brings this popup to the back of other popups (in the same map pane).
+ bringToBack: function () {
+ if (this._map) {
+ toBack(this._container);
+ }
+ return this;
+ },
-// @factory L.polyline(latlngs: LatLng[], options?: Polyline options)
-// Instantiates a polyline object given an array of geographical points and
-// optionally an options object. You can create a `Polyline` object with
-// multiple separate lines (`MultiPolyline`) by passing an array of arrays
-// of geographic points.
-L.polyline = function (latlngs, options) {
- return new L.Polyline(latlngs, options);
-};
+ _prepareOpen: function (parent, layer, latlng) {
+ if (!(layer instanceof Layer)) {
+ latlng = layer;
+ layer = parent;
+ }
-L.Polyline._flat = function (latlngs) {
- // true if it's a flat array of latlngs; false if nested
- return !L.Util.isArray(latlngs[0]) || (typeof latlngs[0][0] !== 'object' && typeof latlngs[0][0] !== 'undefined');
-};
+ if (layer instanceof FeatureGroup) {
+ for (var id in parent._layers) {
+ layer = parent._layers[id];
+ break;
+ }
+ }
+ if (!latlng) {
+ if (layer.getCenter) {
+ latlng = layer.getCenter();
+ } else if (layer.getLatLng) {
+ latlng = layer.getLatLng();
+ } else {
+ throw new Error('Unable to get source layer LatLng.');
+ }
+ }
+ // set overlay source to this layer
+ this._source = layer;
-/*
- * @namespace PolyUtil
- * Various utility functions for polygon geometries.
- */
+ // update the overlay (content, layout, ect...)
+ this.update();
-L.PolyUtil = {};
+ return latlng;
+ },
-/* @function clipPolygon(points: Point[], bounds: Bounds, round?: Boolean): Point[]
- * Clips the polygon geometry defined by the given `points` by the given bounds (using the [Sutherland-Hodgeman algorithm](https://en.wikipedia.org/wiki/Sutherland%E2%80%93Hodgman_algorithm)).
- * Used by Leaflet to only show polygon points that are on the screen or near, increasing
- * performance. Note that polygon points needs different algorithm for clipping
- * than polyline, so there's a seperate method for it.
- */
-L.PolyUtil.clipPolygon = function (points, bounds, round) {
- var clippedPoints,
- edges = [1, 4, 2, 8],
- i, j, k,
- a, b,
- len, edge, p,
- lu = L.LineUtil;
+ _updateContent: function () {
+ if (!this._content) { return; }
- for (i = 0, len = points.length; i < len; i++) {
- points[i]._code = lu._getBitCode(points[i], bounds);
- }
+ var node = this._contentNode;
+ var content = (typeof this._content === 'function') ? this._content(this._source || this) : this._content;
- // for each edge (left, bottom, right, top)
- for (k = 0; k < 4; k++) {
- edge = edges[k];
- clippedPoints = [];
+ if (typeof content === 'string') {
+ node.innerHTML = content;
+ } else {
+ while (node.hasChildNodes()) {
+ node.removeChild(node.firstChild);
+ }
+ node.appendChild(content);
+ }
+ this.fire('contentupdate');
+ },
- for (i = 0, len = points.length, j = len - 1; i < len; j = i++) {
- a = points[i];
- b = points[j];
+ _updatePosition: function () {
+ if (!this._map) { return; }
- // 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, round);
- p._code = lu._getBitCode(p, bounds);
- clippedPoints.push(p);
- }
- clippedPoints.push(a);
+ var pos = this._map.latLngToLayerPoint(this._latlng),
+ offset = toPoint(this.options.offset),
+ anchor = this._getAnchor();
- // 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, round);
- p._code = lu._getBitCode(p, bounds);
- clippedPoints.push(p);
- }
+ if (this._zoomAnimated) {
+ setPosition(this._container, pos.add(anchor));
+ } else {
+ offset = offset.add(pos).add(anchor);
}
- points = clippedPoints;
- }
- return points;
-};
+ var bottom = this._containerBottom = -offset.y,
+ left = this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x;
+
+ // bottom position the popup in case the height of the popup changes (images loading etc)
+ this._container.style.bottom = bottom + 'px';
+ this._container.style.left = left + 'px';
+ },
+ _getAnchor: function () {
+ return [0, 0];
+ }
+});
/*
- * @class Polygon
- * @aka L.Polygon
- * @inherits Polyline
- *
- * A class for drawing polygon overlays on a map. Extends `Polyline`.
- *
- * Note that points you pass when creating a polygon shouldn't have an additional last point equal to the first one — it's better to filter out such points.
- *
+ * @class Popup
+ * @inherits DivOverlay
+ * @aka L.Popup
+ * Used to open popups in certain places of the map. Use [Map.openPopup](#map-openpopup) to
+ * open popups while making sure that only one popup is open at one time
+ * (recommended for usability), or use [Map.addLayer](#map-addlayer) to open as many as you want.
*
* @example
*
- * ```js
- * // create a red polygon from an array of LatLng points
- * var latlngs = [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]];
- *
- * var polygon = L.polygon(latlngs, {color: 'red'}).addTo(map);
- *
- * // zoom the map to the polygon
- * map.fitBounds(polygon.getBounds());
- * ```
- *
- * You can also pass an array of arrays of latlngs, with the first array representing the outer shape and the other arrays representing holes in the outer shape:
+ * If you want to just bind a popup to marker click and then open it, it's really easy:
*
* ```js
- * var latlngs = [
- * [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]], // outer ring
- * [[37.29, -108.58],[40.71, -108.58],[40.71, -102.50],[37.29, -102.50]] // hole
- * ];
+ * marker.bindPopup(popupContent).openPopup();
* ```
- *
- * Additionally, you can pass a multi-dimensional array to represent a MultiPolygon shape.
+ * Path overlays like polylines also have a `bindPopup` method.
+ * Here's a more complicated way to open a popup on a map:
*
* ```js
- * var latlngs = [
- * [ // first polygon
- * [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]], // outer ring
- * [[37.29, -108.58],[40.71, -108.58],[40.71, -102.50],[37.29, -102.50]] // hole
- * ],
- * [ // second polygon
- * [[41, -111.03],[45, -111.04],[45, -104.05],[41, -104.05]]
- * ]
- * ];
+ * var popup = L.popup()
+ * .setLatLng(latlng)
+ * .setContent('<p>Hello world!<br />This is a nice popup.</p>')
+ * .openOn(map);
* ```
*/
-L.Polygon = L.Polyline.extend({
+// @namespace Popup
+var Popup = DivOverlay.extend({
+
+ // @section
+ // @aka Popup options
options: {
- fill: true
- },
+ // @option maxWidth: Number = 300
+ // Max width of the popup, in pixels.
+ maxWidth: 300,
- isEmpty: function () {
- return !this._latlngs.length || !this._latlngs[0].length;
- },
+ // @option minWidth: Number = 50
+ // Min width of the popup, in pixels.
+ minWidth: 50,
- getCenter: function () {
- // throws error when not yet added to map as this center calculation requires projected coordinates
- if (!this._map) {
- throw new Error('Must add layer to map before using getCenter()');
- }
+ // @option maxHeight: Number = null
+ // If set, creates a scrollable container of the given height
+ // inside a popup if its content exceeds it.
+ maxHeight: null,
- var i, j, p1, p2, f, area, x, y, center,
- points = this._rings[0],
- len = points.length;
+ // @option autoPan: Boolean = true
+ // Set it to `false` if you don't want the map to do panning animation
+ // to fit the opened popup.
+ autoPan: true,
- if (!len) { return null; }
+ // @option autoPanPaddingTopLeft: Point = null
+ // The margin between the popup and the top left corner of the map
+ // view after autopanning was performed.
+ autoPanPaddingTopLeft: null,
+
+ // @option autoPanPaddingBottomRight: Point = null
+ // The margin between the popup and the bottom right corner of the map
+ // view after autopanning was performed.
+ autoPanPaddingBottomRight: null,
+
+ // @option autoPanPadding: Point = Point(5, 5)
+ // Equivalent of setting both top left and bottom right autopan padding to the same value.
+ autoPanPadding: [5, 5],
+
+ // @option keepInView: Boolean = false
+ // Set it to `true` if you want to prevent users from panning the popup
+ // off of the screen while it is open.
+ keepInView: false,
+
+ // @option closeButton: Boolean = true
+ // Controls the presence of a close button in the popup.
+ closeButton: true,
- // polygon centroid algorithm; only uses the first ring if there are multiple
+ // @option autoClose: Boolean = true
+ // Set it to `false` if you want to override the default behavior of
+ // the popup closing when another popup is opened.
+ autoClose: true,
- area = x = y = 0;
+ // @option closeOnEscapeKey: Boolean = true
+ // Set it to `false` if you want to override the default behavior of
+ // the ESC key for closing of the popup.
+ closeOnEscapeKey: true,
- for (i = 0, j = len - 1; i < len; j = i++) {
- p1 = points[i];
- p2 = points[j];
+ // @option closeOnClick: Boolean = *
+ // Set it if you want to override the default behavior of the popup closing when user clicks
+ // on the map. Defaults to the map's [`closePopupOnClick`](#map-closepopuponclick) option.
- f = p1.y * p2.x - p2.y * p1.x;
- x += (p1.x + p2.x) * f;
- y += (p1.y + p2.y) * f;
- area += f * 3;
- }
+ // @option className: String = ''
+ // A custom CSS class name to assign to the popup.
+ className: ''
+ },
- if (area === 0) {
- // Polygon is so small that all points are on same pixel.
- center = points[0];
- } else {
- center = [x / area, y / area];
- }
- return this._map.layerPointToLatLng(center);
+ // @namespace Popup
+ // @method openOn(map: Map): this
+ // Adds the popup to the map and closes the previous one. The same as `map.openPopup(popup)`.
+ openOn: function (map) {
+ map.openPopup(this);
+ return this;
},
- _convertLatLngs: function (latlngs) {
- var result = L.Polyline.prototype._convertLatLngs.call(this, latlngs),
- len = result.length;
+ onAdd: function (map) {
+ DivOverlay.prototype.onAdd.call(this, map);
- // remove last point if it equals first one
- if (len >= 2 && result[0] instanceof L.LatLng && result[0].equals(result[len - 1])) {
- result.pop();
- }
- return result;
- },
+ // @namespace Map
+ // @section Popup events
+ // @event popupopen: PopupEvent
+ // Fired when a popup is opened in the map
+ map.fire('popupopen', {popup: this});
- _setLatLngs: function (latlngs) {
- L.Polyline.prototype._setLatLngs.call(this, latlngs);
- if (L.Polyline._flat(this._latlngs)) {
- this._latlngs = [this._latlngs];
+ if (this._source) {
+ // @namespace Layer
+ // @section Popup events
+ // @event popupopen: PopupEvent
+ // Fired when a popup bound to this layer is opened
+ this._source.fire('popupopen', {popup: this}, true);
+ // For non-path layers, we toggle the popup when clicking
+ // again the layer, so prevent the map to reopen it.
+ if (!(this._source instanceof Path)) {
+ this._source.on('preclick', stopPropagation);
+ }
}
},
- _defaultShape: function () {
- return L.Polyline._flat(this._latlngs[0]) ? this._latlngs[0] : this._latlngs[0][0];
- },
+ onRemove: function (map) {
+ DivOverlay.prototype.onRemove.call(this, map);
- _clipPoints: function () {
- // polygons need a different clipping algorithm so we redefine that
+ // @namespace Map
+ // @section Popup events
+ // @event popupclose: PopupEvent
+ // Fired when a popup in the map is closed
+ map.fire('popupclose', {popup: this});
- var bounds = this._renderer._bounds,
- w = this.options.weight,
- p = new L.Point(w, w);
+ if (this._source) {
+ // @namespace Layer
+ // @section Popup events
+ // @event popupclose: PopupEvent
+ // Fired when a popup bound to this layer is closed
+ this._source.fire('popupclose', {popup: this}, true);
+ if (!(this._source instanceof Path)) {
+ this._source.off('preclick', stopPropagation);
+ }
+ }
+ },
- // increase clip padding by stroke width to avoid stroke on clip edges
- bounds = new L.Bounds(bounds.min.subtract(p), bounds.max.add(p));
+ getEvents: function () {
+ var events = DivOverlay.prototype.getEvents.call(this);
- this._parts = [];
- if (!this._pxBounds || !this._pxBounds.intersects(bounds)) {
- return;
+ if (this.options.closeOnClick !== undefined ? this.options.closeOnClick : this._map.options.closePopupOnClick) {
+ events.preclick = this._close;
}
- if (this.options.noClip) {
- this._parts = this._rings;
- return;
+ if (this.options.keepInView) {
+ events.moveend = this._adjustPan;
}
- for (var i = 0, len = this._rings.length, clipped; i < len; i++) {
- clipped = L.PolyUtil.clipPolygon(this._rings[i], bounds, true);
- if (clipped.length) {
- this._parts.push(clipped);
- }
- }
+ return events;
},
- _updatePath: function () {
- this._renderer._updatePoly(this, true);
- }
-});
-
-
-// @factory L.polygon(latlngs: LatLng[], options?: Polyline options)
-L.polygon = function (latlngs, options) {
- return new L.Polygon(latlngs, options);
-};
-
+ _close: function () {
+ if (this._map) {
+ this._map.closePopup(this);
+ }
+ },
+ _initLayout: function () {
+ var prefix = 'leaflet-popup',
+ container = this._container = create$1('div',
+ prefix + ' ' + (this.options.className || '') +
+ ' leaflet-zoom-animated');
-/*
- * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object.
- */
+ var wrapper = this._wrapper = create$1('div', prefix + '-content-wrapper', container);
+ this._contentNode = create$1('div', prefix + '-content', wrapper);
-/*
- * @class Rectangle
- * @aka L.Retangle
- * @inherits Polygon
- *
- * A class for drawing rectangle overlays on a map. Extends `Polygon`.
- *
- * @example
- *
- * ```js
- * // define rectangle geographical bounds
- * var bounds = [[54.559322, -5.767822], [56.1210604, -3.021240]];
- *
- * // create an orange rectangle
- * L.rectangle(bounds, {color: "#ff7800", weight: 1}).addTo(map);
- *
- * // zoom the map to the rectangle bounds
- * map.fitBounds(bounds);
- * ```
- *
- */
+ disableClickPropagation(wrapper);
+ disableScrollPropagation(this._contentNode);
+ on(wrapper, 'contextmenu', stopPropagation);
+ this._tipContainer = create$1('div', prefix + '-tip-container', container);
+ this._tip = create$1('div', prefix + '-tip', this._tipContainer);
-L.Rectangle = L.Polygon.extend({
- initialize: function (latLngBounds, options) {
- L.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options);
- },
+ if (this.options.closeButton) {
+ var closeButton = this._closeButton = create$1('a', prefix + '-close-button', container);
+ closeButton.href = '#close';
+ closeButton.innerHTML = '×';
- // @method setBounds(latLngBounds: LatLngBounds): this
- // Redraws the rectangle with the passed bounds.
- setBounds: function (latLngBounds) {
- return this.setLatLngs(this._boundsToLatLngs(latLngBounds));
+ on(closeButton, 'click', this._onCloseButtonClick, this);
+ }
},
- _boundsToLatLngs: function (latLngBounds) {
- latLngBounds = L.latLngBounds(latLngBounds);
- return [
- latLngBounds.getSouthWest(),
- latLngBounds.getNorthWest(),
- latLngBounds.getNorthEast(),
- latLngBounds.getSouthEast()
- ];
- }
-});
-
-
-// @factory L.rectangle(latLngBounds: LatLngBounds, options?: Polyline options)
-L.rectangle = function (latLngBounds, options) {
- return new L.Rectangle(latLngBounds, options);
-};
-
-
+ _updateLayout: function () {
+ var container = this._contentNode,
+ style = container.style;
-/*
- * @class CircleMarker
- * @aka L.CircleMarker
- * @inherits Path
- *
- * A circle of a fixed size with radius specified in pixels. Extends `Path`.
- */
+ style.width = '';
+ style.whiteSpace = 'nowrap';
-L.CircleMarker = L.Path.extend({
+ var width = container.offsetWidth;
+ width = Math.min(width, this.options.maxWidth);
+ width = Math.max(width, this.options.minWidth);
- // @section
- // @aka CircleMarker options
- options: {
- fill: true,
+ style.width = (width + 1) + 'px';
+ style.whiteSpace = '';
- // @option radius: Number = 10
- // Radius of the circle marker, in pixels
- radius: 10
- },
+ style.height = '';
- initialize: function (latlng, options) {
- L.setOptions(this, options);
- this._latlng = L.latLng(latlng);
- this._radius = this.options.radius;
- },
+ var height = container.offsetHeight,
+ maxHeight = this.options.maxHeight,
+ scrolledClass = 'leaflet-popup-scrolled';
- // @method setLatLng(latLng: LatLng): this
- // Sets the position of a circle marker to a new location.
- setLatLng: function (latlng) {
- this._latlng = L.latLng(latlng);
- this.redraw();
- return this.fire('move', {latlng: this._latlng});
- },
+ if (maxHeight && height > maxHeight) {
+ style.height = maxHeight + 'px';
+ addClass(container, scrolledClass);
+ } else {
+ removeClass(container, scrolledClass);
+ }
- // @method getLatLng(): LatLng
- // Returns the current geographical position of the circle marker
- getLatLng: function () {
- return this._latlng;
+ this._containerWidth = this._container.offsetWidth;
},
- // @method setRadius(radius: Number): this
- // Sets the radius of a circle marker. Units are in pixels.
- setRadius: function (radius) {
- this.options.radius = this._radius = radius;
- return this.redraw();
+ _animateZoom: function (e) {
+ var pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center),
+ anchor = this._getAnchor();
+ setPosition(this._container, pos.add(anchor));
},
- // @method getRadius(): Number
- // Returns the current radius of the circle
- getRadius: function () {
- return this._radius;
- },
+ _adjustPan: function () {
+ if (!this.options.autoPan) { return; }
+ if (this._map._panAnim) { this._map._panAnim.stop(); }
- setStyle : function (options) {
- var radius = options && options.radius || this._radius;
- L.Path.prototype.setStyle.call(this, options);
- this.setRadius(radius);
- return this;
- },
+ var map = this._map,
+ marginBottom = parseInt(getStyle(this._container, 'marginBottom'), 10) || 0,
+ containerHeight = this._container.offsetHeight + marginBottom,
+ containerWidth = this._containerWidth,
+ layerPos = new Point(this._containerLeft, -containerHeight - this._containerBottom);
- _project: function () {
- this._point = this._map.latLngToLayerPoint(this._latlng);
- this._updateBounds();
- },
+ layerPos._add(getPosition(this._container));
- _updateBounds: function () {
- var r = this._radius,
- r2 = this._radiusY || r,
- w = this._clickTolerance(),
- p = [r + w, r2 + w];
- this._pxBounds = new L.Bounds(this._point.subtract(p), this._point.add(p));
- },
+ var containerPos = map.layerPointToContainerPoint(layerPos),
+ padding = toPoint(this.options.autoPanPadding),
+ paddingTL = toPoint(this.options.autoPanPaddingTopLeft || padding),
+ paddingBR = toPoint(this.options.autoPanPaddingBottomRight || padding),
+ size = map.getSize(),
+ dx = 0,
+ dy = 0;
- _update: function () {
- if (this._map) {
- this._updatePath();
+ if (containerPos.x + containerWidth + paddingBR.x > size.x) { // right
+ dx = containerPos.x + containerWidth - size.x + paddingBR.x;
+ }
+ if (containerPos.x - dx - paddingTL.x < 0) { // left
+ dx = containerPos.x - paddingTL.x;
+ }
+ if (containerPos.y + containerHeight + paddingBR.y > size.y) { // bottom
+ dy = containerPos.y + containerHeight - size.y + paddingBR.y;
+ }
+ if (containerPos.y - dy - paddingTL.y < 0) { // top
+ dy = containerPos.y - paddingTL.y;
+ }
+
+ // @namespace Map
+ // @section Popup events
+ // @event autopanstart: Event
+ // Fired when the map starts autopanning when opening a popup.
+ if (dx || dy) {
+ map
+ .fire('autopanstart')
+ .panBy([dx, dy]);
}
},
- _updatePath: function () {
- this._renderer._updateCircle(this);
+ _onCloseButtonClick: function (e) {
+ this._close();
+ stop(e);
},
- _empty: function () {
- return this._radius && !this._renderer._bounds.intersects(this._pxBounds);
+ _getAnchor: function () {
+ // Where should we anchor the popup on the source layer?
+ return toPoint(this._source && this._source._getPopupAnchor ? this._source._getPopupAnchor() : [0, 0]);
}
-});
+});
-// @factory L.circleMarker(latlng: LatLng, options?: CircleMarker options)
-// Instantiates a circle marker object given a geographical point, and an optional options object.
-L.circleMarker = function (latlng, options) {
- return new L.CircleMarker(latlng, options);
+// @namespace Popup
+// @factory L.popup(options?: Popup options, source?: Layer)
+// Instantiates a `Popup` object given an optional `options` object that describes its appearance and location and an optional `source` object that is used to tag the popup with a reference to the Layer to which it refers.
+var popup = function (options, source) {
+ return new Popup(options, source);
};
-
-/*
- * @class Circle
- * @aka L.Circle
- * @inherits CircleMarker
- *
- * A class for drawing circle overlays on a map. Extends `CircleMarker`.
- *
- * It's an approximation and starts to diverge from a real circle closer to poles (due to projection distortion).
- *
- * @example
- *
- * ```js
- * L.circle([50.5, 30.5], {radius: 200}).addTo(map);
- * ```
+/* @namespace Map
+ * @section Interaction Options
+ * @option closePopupOnClick: Boolean = true
+ * Set it to `false` if you don't want popups to close when user clicks the map.
*/
+Map.mergeOptions({
+ closePopupOnClick: true
+});
-L.Circle = L.CircleMarker.extend({
- initialize: function (latlng, options, legacyOptions) {
- if (typeof options === 'number') {
- // Backwards compatibility with 0.7.x factory (latlng, radius, options?)
- options = L.extend({}, legacyOptions, {radius: options});
+// @namespace Map
+// @section Methods for Layers and Controls
+Map.include({
+ // @method openPopup(popup: Popup): this
+ // Opens the specified popup while closing the previously opened (to make sure only one is opened at one time for usability).
+ // @alternative
+ // @method openPopup(content: String|HTMLElement, latlng: LatLng, options?: Popup options): this
+ // Creates a popup with the specified content and options and opens it in the given point on a map.
+ openPopup: function (popup, latlng, options) {
+ if (!(popup instanceof Popup)) {
+ popup = new Popup(options).setContent(popup);
}
- L.setOptions(this, options);
- this._latlng = L.latLng(latlng);
-
- if (isNaN(this.options.radius)) { throw new Error('Circle radius cannot be NaN'); }
-
- // @section
- // @aka Circle options
- // @option radius: Number; Radius of the circle, in meters.
- this._mRadius = this.options.radius;
- },
- // @method setRadius(radius: Number): this
- // Sets the radius of a circle. Units are in meters.
- setRadius: function (radius) {
- this._mRadius = radius;
- return this.redraw();
- },
+ if (latlng) {
+ popup.setLatLng(latlng);
+ }
- // @method getRadius(): Number
- // Returns the current radius of a circle. Units are in meters.
- getRadius: function () {
- return this._mRadius;
- },
+ if (this.hasLayer(popup)) {
+ return this;
+ }
- // @method getBounds(): LatLngBounds
- // Returns the `LatLngBounds` of the path.
- getBounds: function () {
- var half = [this._radius, this._radiusY || this._radius];
+ if (this._popup && this._popup.options.autoClose) {
+ this.closePopup();
+ }
- return new L.LatLngBounds(
- this._map.layerPointToLatLng(this._point.subtract(half)),
- this._map.layerPointToLatLng(this._point.add(half)));
+ this._popup = popup;
+ return this.addLayer(popup);
},
- setStyle: L.Path.prototype.setStyle,
-
- _project: function () {
-
- var lng = this._latlng.lng,
- lat = this._latlng.lat,
- map = this._map,
- crs = map.options.crs;
-
- if (crs.distance === L.CRS.Earth.distance) {
- var d = Math.PI / 180,
- latR = (this._mRadius / L.CRS.Earth.R) / d,
- top = map.project([lat + latR, lng]),
- bottom = map.project([lat - latR, lng]),
- p = top.add(bottom).divideBy(2),
- lat2 = map.unproject(p).lat,
- lngR = Math.acos((Math.cos(latR * d) - Math.sin(lat * d) * Math.sin(lat2 * d)) /
- (Math.cos(lat * d) * Math.cos(lat2 * d))) / d;
-
- if (isNaN(lngR) || lngR === 0) {
- lngR = latR / Math.cos(Math.PI / 180 * lat); // Fallback for edge case, #2425
- }
-
- this._point = p.subtract(map.getPixelOrigin());
- this._radius = isNaN(lngR) ? 0 : Math.max(Math.round(p.x - map.project([lat2, lng - lngR]).x), 1);
- this._radiusY = Math.max(Math.round(p.y - top.y), 1);
-
- } else {
- var latlng2 = crs.unproject(crs.project(this._latlng).subtract([this._mRadius, 0]));
-
- this._point = map.latLngToLayerPoint(this._latlng);
- this._radius = this._point.x - map.latLngToLayerPoint(latlng2).x;
+ // @method closePopup(popup?: Popup): this
+ // Closes the popup previously opened with [openPopup](#map-openpopup) (or the given one).
+ closePopup: function (popup) {
+ if (!popup || popup === this._popup) {
+ popup = this._popup;
+ this._popup = null;
}
-
- this._updateBounds();
+ if (popup) {
+ this.removeLayer(popup);
+ }
+ return this;
}
});
-// @factory L.circle(latlng: LatLng, options?: Circle options)
-// Instantiates a circle object given a geographical point, and an options object
-// which contains the circle radius.
-// @alternative
-// @factory L.circle(latlng: LatLng, radius: Number, options?: Circle options)
-// Obsolete way of instantiating a circle, for compatibility with 0.7.x code.
-// Do not use in new applications or plugins.
-L.circle = function (latlng, options, legacyOptions) {
- return new L.Circle(latlng, options, legacyOptions);
-};
-
-
-
/*
- * @class SVG
- * @inherits Renderer
- * @aka L.SVG
- *
- * Allows vector layers to be displayed with [SVG](https://developer.mozilla.org/docs/Web/SVG).
- * Inherits `Renderer`.
- *
- * Due to [technical limitations](http://caniuse.com/#search=svg), SVG is not
- * available in all web browsers, notably Android 2.x and 3.x.
- *
- * Although SVG is not available on IE7 and IE8, these browsers support
- * [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language)
- * (a now deprecated technology), and the SVG renderer will fall back to VML in
- * this case.
- *
- * @example
+ * @namespace Layer
+ * @section Popup methods example
*
- * Use SVG by default for all paths in the map:
+ * All layers share a set of methods convenient for binding popups to it.
*
* ```js
- * var map = L.map('map', {
- * renderer: L.svg()
- * });
+ * var layer = L.Polygon(latlngs).bindPopup('Hi There!').addTo(map);
+ * layer.openPopup();
+ * layer.closePopup();
* ```
*
- * Use a SVG renderer with extra padding for specific vector geometries:
- *
- * ```js
- * var map = L.map('map');
- * var myRenderer = L.svg({ padding: 0.5 });
- * var line = L.polyline( coordinates, { renderer: myRenderer } );
- * var circle = L.circle( center, { renderer: myRenderer } );
- * ```
+ * Popups will also be automatically opened when the layer is clicked on and closed when the layer is removed from the map or another popup is opened.
*/
-L.SVG = L.Renderer.extend({
-
- getEvents: function () {
- var events = L.Renderer.prototype.getEvents.call(this);
- events.zoomstart = this._onZoomStart;
- return events;
- },
+// @section Popup methods
+Layer.include({
- _initContainer: function () {
- this._container = L.SVG.create('svg');
+ // @method bindPopup(content: String|HTMLElement|Function|Popup, options?: Popup options): this
+ // Binds a popup to the layer with the passed `content` and sets up the
+ // necessary event listeners. If a `Function` is passed it will receive
+ // the layer as the first argument and should return a `String` or `HTMLElement`.
+ bindPopup: function (content, options) {
- // makes it possible to click through svg root; we'll reset it back in individual paths
- this._container.setAttribute('pointer-events', 'none');
+ if (content instanceof Popup) {
+ setOptions(content, options);
+ this._popup = content;
+ content._source = this;
+ } else {
+ if (!this._popup || options) {
+ this._popup = new Popup(options, this);
+ }
+ this._popup.setContent(content);
+ }
- this._rootGroup = L.SVG.create('g');
- this._container.appendChild(this._rootGroup);
- },
+ if (!this._popupHandlersAdded) {
+ this.on({
+ click: this._openPopup,
+ keypress: this._onKeyPress,
+ remove: this.closePopup,
+ move: this._movePopup
+ });
+ this._popupHandlersAdded = true;
+ }
- _onZoomStart: function () {
- // Drag-then-pinch interactions might mess up the center and zoom.
- // In this case, the easiest way to prevent this is re-do the renderer
- // bounds and padding when the zooming starts.
- this._update();
+ return this;
},
- _update: function () {
- if (this._map._animatingZoom && this._bounds) { return; }
-
- L.Renderer.prototype._update.call(this);
-
- var b = this._bounds,
- size = b.getSize(),
- container = this._container;
-
- // set size of svg-container if changed
- if (!this._svgSize || !this._svgSize.equals(size)) {
- this._svgSize = size;
- container.setAttribute('width', size.x);
- container.setAttribute('height', size.y);
+ // @method unbindPopup(): this
+ // Removes the popup previously bound with `bindPopup`.
+ unbindPopup: function () {
+ if (this._popup) {
+ this.off({
+ click: this._openPopup,
+ keypress: this._onKeyPress,
+ remove: this.closePopup,
+ move: this._movePopup
+ });
+ this._popupHandlersAdded = false;
+ this._popup = null;
}
-
- // movement: update container viewBox so that we don't have to change coordinates of individual layers
- L.DomUtil.setPosition(container, b.min);
- container.setAttribute('viewBox', [b.min.x, b.min.y, size.x, size.y].join(' '));
-
- this.fire('update');
+ return this;
},
- // methods below are called by vector layers implementations
-
- _initPath: function (layer) {
- var path = layer._path = L.SVG.create('path');
+ // @method openPopup(latlng?: LatLng): this
+ // Opens the bound popup at the specified `latlng` or at the default popup anchor if no `latlng` is passed.
+ openPopup: function (layer, latlng) {
+ if (this._popup && this._map) {
+ latlng = this._popup._prepareOpen(this, layer, latlng);
- // @namespace Path
- // @option className: String = null
- // Custom class name set on an element. Only for SVG renderer.
- if (layer.options.className) {
- L.DomUtil.addClass(path, layer.options.className);
+ // open the popup on the map
+ this._map.openPopup(this._popup, latlng);
}
- if (layer.options.interactive) {
- L.DomUtil.addClass(path, 'leaflet-interactive');
+ return this;
+ },
+
+ // @method closePopup(): this
+ // Closes the popup bound to this layer if it is open.
+ closePopup: function () {
+ if (this._popup) {
+ this._popup._close();
}
+ return this;
+ },
- this._updateStyle(layer);
- this._layers[L.stamp(layer)] = layer;
+ // @method togglePopup(): this
+ // Opens or closes the popup bound to this layer depending on its current state.
+ togglePopup: function (target) {
+ if (this._popup) {
+ if (this._popup._map) {
+ this.closePopup();
+ } else {
+ this.openPopup(target);
+ }
+ }
+ return this;
},
- _addPath: function (layer) {
- this._rootGroup.appendChild(layer._path);
- layer.addInteractiveTarget(layer._path);
+ // @method isPopupOpen(): boolean
+ // Returns `true` if the popup bound to this layer is currently open.
+ isPopupOpen: function () {
+ return (this._popup ? this._popup.isOpen() : false);
},
- _removePath: function (layer) {
- L.DomUtil.remove(layer._path);
- layer.removeInteractiveTarget(layer._path);
- delete this._layers[L.stamp(layer)];
+ // @method setPopupContent(content: String|HTMLElement|Popup): this
+ // Sets the content of the popup bound to this layer.
+ setPopupContent: function (content) {
+ if (this._popup) {
+ this._popup.setContent(content);
+ }
+ return this;
},
- _updatePath: function (layer) {
- layer._project();
- layer._update();
+ // @method getPopup(): Popup
+ // Returns the popup bound to this layer.
+ getPopup: function () {
+ return this._popup;
},
- _updateStyle: function (layer) {
- var path = layer._path,
- options = layer.options;
+ _openPopup: function (e) {
+ var layer = e.layer || e.target;
- if (!path) { return; }
+ if (!this._popup) {
+ return;
+ }
- if (options.stroke) {
- path.setAttribute('stroke', options.color);
- path.setAttribute('stroke-opacity', options.opacity);
- path.setAttribute('stroke-width', options.weight);
- path.setAttribute('stroke-linecap', options.lineCap);
- path.setAttribute('stroke-linejoin', options.lineJoin);
+ if (!this._map) {
+ return;
+ }
- if (options.dashArray) {
- path.setAttribute('stroke-dasharray', options.dashArray);
- } else {
- path.removeAttribute('stroke-dasharray');
- }
+ // prevent map click
+ stop(e);
- if (options.dashOffset) {
- path.setAttribute('stroke-dashoffset', options.dashOffset);
- } else {
- path.removeAttribute('stroke-dashoffset');
- }
- } else {
- path.setAttribute('stroke', 'none');
+ // if this inherits from Path its a vector and we can just
+ // open the popup at the new location
+ if (layer instanceof Path) {
+ this.openPopup(e.layer || e.target, e.latlng);
+ return;
}
- if (options.fill) {
- path.setAttribute('fill', options.fillColor || options.color);
- path.setAttribute('fill-opacity', options.fillOpacity);
- path.setAttribute('fill-rule', options.fillRule || 'evenodd');
+ // otherwise treat it like a marker and figure out
+ // if we should toggle it open/closed
+ if (this._map.hasLayer(this._popup) && this._popup._source === layer) {
+ this.closePopup();
} else {
- path.setAttribute('fill', 'none');
+ this.openPopup(layer, e.latlng);
}
},
- _updatePoly: function (layer, closed) {
- this._setPath(layer, L.SVG.pointsToPath(layer._parts, closed));
+ _movePopup: function (e) {
+ this._popup.setLatLng(e.latlng);
},
- _updateCircle: function (layer) {
- var p = layer._point,
- r = layer._radius,
- r2 = layer._radiusY || r,
- arc = 'a' + r + ',' + r2 + ' 0 1,0 ';
+ _onKeyPress: function (e) {
+ if (e.originalEvent.keyCode === 13) {
+ this._openPopup(e);
+ }
+ }
+});
- // drawing a circle with two half-arcs
- var d = layer._empty() ? 'M0 0' :
- 'M' + (p.x - r) + ',' + p.y +
- arc + (r * 2) + ',0 ' +
- arc + (-r * 2) + ',0 ';
+/*
+ * @class Tooltip
+ * @inherits DivOverlay
+ * @aka L.Tooltip
+ * Used to display small texts on top of map layers.
+ *
+ * @example
+ *
+ * ```js
+ * marker.bindTooltip("my tooltip text").openTooltip();
+ * ```
+ * Note about tooltip offset. Leaflet takes two options in consideration
+ * for computing tooltip offsetting:
+ * - the `offset` Tooltip option: it defaults to [0, 0], and it's specific to one tooltip.
+ * Add a positive x offset to move the tooltip to the right, and a positive y offset to
+ * move it to the bottom. Negatives will move to the left and top.
+ * - the `tooltipAnchor` Icon option: this will only be considered for Marker. You
+ * should adapt this value if you use a custom icon.
+ */
- this._setPath(layer, d);
- },
- _setPath: function (layer, path) {
- layer._path.setAttribute('d', path);
- },
+// @namespace Tooltip
+var Tooltip = DivOverlay.extend({
- // SVG does not have the concept of zIndex so we resort to changing the DOM order of elements
- _bringToFront: function (layer) {
- L.DomUtil.toFront(layer._path);
- },
+ // @section
+ // @aka Tooltip options
+ options: {
+ // @option pane: String = 'tooltipPane'
+ // `Map pane` where the tooltip will be added.
+ pane: 'tooltipPane',
- _bringToBack: function (layer) {
- L.DomUtil.toBack(layer._path);
- }
-});
+ // @option offset: Point = Point(0, 0)
+ // Optional offset of the tooltip position.
+ offset: [0, 0],
+ // @option direction: String = 'auto'
+ // Direction where to open the tooltip. Possible values are: `right`, `left`,
+ // `top`, `bottom`, `center`, `auto`.
+ // `auto` will dynamically switch between `right` and `left` according to the tooltip
+ // position on the map.
+ direction: 'auto',
-// @namespace SVG; @section
-// There are several static functions which can be called without instantiating L.SVG:
-L.extend(L.SVG, {
- // @function create(name: String): SVGElement
- // Returns a instance of [SVGElement](https://developer.mozilla.org/docs/Web/API/SVGElement),
- // corresponding to the class name passed. For example, using 'line' will return
- // an instance of [SVGLineElement](https://developer.mozilla.org/docs/Web/API/SVGLineElement).
- create: function (name) {
- return document.createElementNS('http://www.w3.org/2000/svg', name);
- },
-
- // @function pointsToPath(rings: Point[], closed: Boolean): String
- // Generates a SVG path string for multiple rings, with each ring turning
- // into "M..L..L.." instructions
- pointsToPath: function (rings, closed) {
- var str = '',
- i, j, len, len2, points, p;
-
- for (i = 0, len = rings.length; i < len; i++) {
- points = rings[i];
-
- for (j = 0, len2 = points.length; j < len2; j++) {
- p = points[j];
- str += (j ? 'L' : 'M') + p.x + ' ' + p.y;
- }
+ // @option permanent: Boolean = false
+ // Whether to open the tooltip permanently or only on mouseover.
+ permanent: false,
- // closes the ring for polygons; "x" is VML syntax
- str += closed ? (L.Browser.svg ? 'z' : 'x') : '';
- }
+ // @option sticky: Boolean = false
+ // If true, the tooltip will follow the mouse instead of being fixed at the feature center.
+ sticky: false,
- // SVG complains about empty path strings
- return str || 'M0 0';
- }
-});
+ // @option interactive: Boolean = false
+ // If true, the tooltip will listen to the feature events.
+ interactive: false,
-// @namespace Browser; @property svg: Boolean
-// `true` when the browser supports [SVG](https://developer.mozilla.org/docs/Web/SVG).
-L.Browser.svg = !!(document.createElementNS && L.SVG.create('svg').createSVGRect);
+ // @option opacity: Number = 0.9
+ // Tooltip container opacity.
+ opacity: 0.9
+ },
+ onAdd: function (map) {
+ DivOverlay.prototype.onAdd.call(this, map);
+ this.setOpacity(this.options.opacity);
-// @namespace SVG
-// @factory L.svg(options?: Renderer options)
-// Creates a SVG renderer with the given options.
-L.svg = function (options) {
- return L.Browser.svg || L.Browser.vml ? new L.SVG(options) : null;
-};
+ // @namespace Map
+ // @section Tooltip events
+ // @event tooltipopen: TooltipEvent
+ // Fired when a tooltip is opened in the map.
+ map.fire('tooltipopen', {tooltip: this});
+ if (this._source) {
+ // @namespace Layer
+ // @section Tooltip events
+ // @event tooltipopen: TooltipEvent
+ // Fired when a tooltip bound to this layer is opened.
+ this._source.fire('tooltipopen', {tooltip: this}, true);
+ }
+ },
+ onRemove: function (map) {
+ DivOverlay.prototype.onRemove.call(this, map);
-/*
- * Thanks to Dmitry Baranovsky and his Raphael library for inspiration!
- */
+ // @namespace Map
+ // @section Tooltip events
+ // @event tooltipclose: TooltipEvent
+ // Fired when a tooltip in the map is closed.
+ map.fire('tooltipclose', {tooltip: this});
-/*
- * @class SVG
- *
- * Although SVG is not available on IE7 and IE8, these browsers support [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language), and the SVG renderer will fall back to VML in this case.
- *
- * VML was deprecated in 2012, which means VML functionality exists only for backwards compatibility
- * with old versions of Internet Explorer.
- */
+ if (this._source) {
+ // @namespace Layer
+ // @section Tooltip events
+ // @event tooltipclose: TooltipEvent
+ // Fired when a tooltip bound to this layer is closed.
+ this._source.fire('tooltipclose', {tooltip: this}, true);
+ }
+ },
-// @namespace Browser; @property vml: Boolean
-// `true` if the browser supports [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language).
-L.Browser.vml = !L.Browser.svg && (function () {
- try {
- var div = document.createElement('div');
- div.innerHTML = '<v:shape adj="1"/>';
+ getEvents: function () {
+ var events = DivOverlay.prototype.getEvents.call(this);
- var shape = div.firstChild;
- shape.style.behavior = 'url(#default#VML)';
+ if (touch && !this.options.permanent) {
+ events.preclick = this._close;
+ }
- return shape && (typeof shape.adj === 'object');
+ return events;
+ },
- } catch (e) {
- return false;
- }
-}());
+ _close: function () {
+ if (this._map) {
+ this._map.closeTooltip(this);
+ }
+ },
-// redefine some SVG methods to handle VML syntax which is similar but with some differences
-L.SVG.include(!L.Browser.vml ? {} : {
+ _initLayout: function () {
+ var prefix = 'leaflet-tooltip',
+ className = prefix + ' ' + (this.options.className || '') + ' leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');
- _initContainer: function () {
- this._container = L.DomUtil.create('div', 'leaflet-vml-container');
+ this._contentNode = this._container = create$1('div', className);
},
- _update: function () {
- if (this._map._animatingZoom) { return; }
- L.Renderer.prototype._update.call(this);
- this.fire('update');
- },
+ _updateLayout: function () {},
- _initPath: function (layer) {
- var container = layer._container = L.SVG.create('shape');
+ _adjustPan: function () {},
- L.DomUtil.addClass(container, 'leaflet-vml-shape ' + (this.options.className || ''));
+ _setPosition: function (pos) {
+ var map = this._map,
+ container = this._container,
+ centerPoint = map.latLngToContainerPoint(map.getCenter()),
+ tooltipPoint = map.layerPointToContainerPoint(pos),
+ direction = this.options.direction,
+ tooltipWidth = container.offsetWidth,
+ tooltipHeight = container.offsetHeight,
+ offset = toPoint(this.options.offset),
+ anchor = this._getAnchor();
- container.coordsize = '1 1';
+ if (direction === 'top') {
+ pos = pos.add(toPoint(-tooltipWidth / 2 + offset.x, -tooltipHeight + offset.y + anchor.y, true));
+ } else if (direction === 'bottom') {
+ pos = pos.subtract(toPoint(tooltipWidth / 2 - offset.x, -offset.y, true));
+ } else if (direction === 'center') {
+ pos = pos.subtract(toPoint(tooltipWidth / 2 + offset.x, tooltipHeight / 2 - anchor.y + offset.y, true));
+ } else if (direction === 'right' || direction === 'auto' && tooltipPoint.x < centerPoint.x) {
+ direction = 'right';
+ pos = pos.add(toPoint(offset.x + anchor.x, anchor.y - tooltipHeight / 2 + offset.y, true));
+ } else {
+ direction = 'left';
+ pos = pos.subtract(toPoint(tooltipWidth + anchor.x - offset.x, tooltipHeight / 2 - anchor.y - offset.y, true));
+ }
- layer._path = L.SVG.create('path');
- container.appendChild(layer._path);
+ removeClass(container, 'leaflet-tooltip-right');
+ removeClass(container, 'leaflet-tooltip-left');
+ removeClass(container, 'leaflet-tooltip-top');
+ removeClass(container, 'leaflet-tooltip-bottom');
+ addClass(container, 'leaflet-tooltip-' + direction);
+ setPosition(container, pos);
+ },
- this._updateStyle(layer);
- this._layers[L.stamp(layer)] = layer;
+ _updatePosition: function () {
+ var pos = this._map.latLngToLayerPoint(this._latlng);
+ this._setPosition(pos);
},
- _addPath: function (layer) {
- var container = layer._container;
- this._container.appendChild(container);
+ setOpacity: function (opacity) {
+ this.options.opacity = opacity;
- if (layer.options.interactive) {
- layer.addInteractiveTarget(container);
+ if (this._container) {
+ setOpacity(this._container, opacity);
}
},
- _removePath: function (layer) {
- var container = layer._container;
- L.DomUtil.remove(container);
- layer.removeInteractiveTarget(container);
- delete this._layers[L.stamp(layer)];
+ _animateZoom: function (e) {
+ var pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center);
+ this._setPosition(pos);
},
- _updateStyle: function (layer) {
- var stroke = layer._stroke,
- fill = layer._fill,
- options = layer.options,
- container = layer._container;
+ _getAnchor: function () {
+ // Where should we anchor the tooltip on the source layer?
+ return toPoint(this._source && this._source._getTooltipAnchor && !this.options.sticky ? this._source._getTooltipAnchor() : [0, 0]);
+ }
- container.stroked = !!options.stroke;
- container.filled = !!options.fill;
+});
- if (options.stroke) {
- if (!stroke) {
- stroke = layer._stroke = L.SVG.create('stroke');
- }
- container.appendChild(stroke);
- stroke.weight = options.weight + 'px';
- stroke.color = options.color;
- stroke.opacity = options.opacity;
+// @namespace Tooltip
+// @factory L.tooltip(options?: Tooltip options, source?: Layer)
+// Instantiates a Tooltip object given an optional `options` object that describes its appearance and location and an optional `source` object that is used to tag the tooltip with a reference to the Layer to which it refers.
+var tooltip = function (options, source) {
+ return new Tooltip(options, source);
+};
- if (options.dashArray) {
- stroke.dashStyle = L.Util.isArray(options.dashArray) ?
- options.dashArray.join(' ') :
- options.dashArray.replace(/( *, *)/g, ' ');
- } else {
- stroke.dashStyle = '';
- }
- stroke.endcap = options.lineCap.replace('butt', 'flat');
- stroke.joinstyle = options.lineJoin;
+// @namespace Map
+// @section Methods for Layers and Controls
+Map.include({
- } else if (stroke) {
- container.removeChild(stroke);
- layer._stroke = null;
+ // @method openTooltip(tooltip: Tooltip): this
+ // Opens the specified tooltip.
+ // @alternative
+ // @method openTooltip(content: String|HTMLElement, latlng: LatLng, options?: Tooltip options): this
+ // Creates a tooltip with the specified content and options and open it.
+ openTooltip: function (tooltip, latlng, options) {
+ if (!(tooltip instanceof Tooltip)) {
+ tooltip = new Tooltip(options).setContent(tooltip);
}
- if (options.fill) {
- if (!fill) {
- fill = layer._fill = L.SVG.create('fill');
- }
- container.appendChild(fill);
- fill.color = options.fillColor || options.color;
- fill.opacity = options.fillOpacity;
-
- } else if (fill) {
- container.removeChild(fill);
- layer._fill = null;
+ if (latlng) {
+ tooltip.setLatLng(latlng);
}
- },
-
- _updateCircle: function (layer) {
- var p = layer._point.round(),
- r = Math.round(layer._radius),
- r2 = Math.round(layer._radiusY || r);
-
- this._setPath(layer, layer._empty() ? 'M0 0' :
- 'AL ' + p.x + ',' + p.y + ' ' + r + ',' + r2 + ' 0,' + (65535 * 360));
- },
- _setPath: function (layer, path) {
- layer._path.v = path;
- },
+ if (this.hasLayer(tooltip)) {
+ return this;
+ }
- _bringToFront: function (layer) {
- L.DomUtil.toFront(layer._container);
+ return this.addLayer(tooltip);
},
- _bringToBack: function (layer) {
- L.DomUtil.toBack(layer._container);
- }
-});
-
-if (L.Browser.vml) {
- L.SVG.create = (function () {
- try {
- document.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml');
- return function (name) {
- return document.createElement('<lvml:' + name + ' class="lvml">');
- };
- } catch (e) {
- return function (name) {
- return document.createElement('<' + name + ' xmlns="urn:schemas-microsoft.com:vml" class="lvml">');
- };
+ // @method closeTooltip(tooltip?: Tooltip): this
+ // Closes the tooltip given as parameter.
+ closeTooltip: function (tooltip) {
+ if (tooltip) {
+ this.removeLayer(tooltip);
}
- })();
-}
-
+ return this;
+ }
+});
/*
- * @class Canvas
- * @inherits Renderer
- * @aka L.Canvas
- *
- * Allows vector layers to be displayed with [`<canvas>`](https://developer.mozilla.org/docs/Web/API/Canvas_API).
- * Inherits `Renderer`.
- *
- * Due to [technical limitations](http://caniuse.com/#search=canvas), Canvas is not
- * available in all web browsers, notably IE8, and overlapping geometries might
- * not display properly in some edge cases.
- *
- * @example
- *
- * Use Canvas by default for all paths in the map:
- *
- * ```js
- * var map = L.map('map', {
- * renderer: L.canvas()
- * });
- * ```
+ * @namespace Layer
+ * @section Tooltip methods example
*
- * Use a Canvas renderer with extra padding for specific vector geometries:
+ * All layers share a set of methods convenient for binding tooltips to it.
*
* ```js
- * var map = L.map('map');
- * var myRenderer = L.canvas({ padding: 0.5 });
- * var line = L.polyline( coordinates, { renderer: myRenderer } );
- * var circle = L.circle( center, { renderer: myRenderer } );
+ * var layer = L.Polygon(latlngs).bindTooltip('Hi There!').addTo(map);
+ * layer.openTooltip();
+ * layer.closeTooltip();
* ```
*/
-L.Canvas = L.Renderer.extend({
- getEvents: function () {
- var events = L.Renderer.prototype.getEvents.call(this);
- events.viewprereset = this._onViewPreReset;
- return events;
- },
+// @section Tooltip methods
+Layer.include({
- _onViewPreReset: function () {
- // Set a flag so that a viewprereset+moveend+viewreset only updates&redraws once
- this._postponeUpdatePaths = true;
- },
+ // @method bindTooltip(content: String|HTMLElement|Function|Tooltip, options?: Tooltip options): this
+ // Binds a tooltip to the layer with the passed `content` and sets up the
+ // necessary event listeners. If a `Function` is passed it will receive
+ // the layer as the first argument and should return a `String` or `HTMLElement`.
+ bindTooltip: function (content, options) {
- onAdd: function () {
- L.Renderer.prototype.onAdd.call(this);
+ if (content instanceof Tooltip) {
+ setOptions(content, options);
+ this._tooltip = content;
+ content._source = this;
+ } else {
+ if (!this._tooltip || options) {
+ this._tooltip = new Tooltip(options, this);
+ }
+ this._tooltip.setContent(content);
- // Redraw vectors since canvas is cleared upon removal,
- // in case of removing the renderer itself from the map.
- this._draw();
- },
+ }
- _initContainer: function () {
- var container = this._container = document.createElement('canvas');
+ this._initTooltipInteractions();
- L.DomEvent
- .on(container, 'mousemove', L.Util.throttle(this._onMouseMove, 32, this), this)
- .on(container, 'click dblclick mousedown mouseup contextmenu', this._onClick, this)
- .on(container, 'mouseout', this._handleMouseOut, this);
+ if (this._tooltip.options.permanent && this._map && this._map.hasLayer(this)) {
+ this.openTooltip();
+ }
- this._ctx = container.getContext('2d');
+ return this;
},
- _updatePaths: function () {
- if (this._postponeUpdatePaths) { return; }
+ // @method unbindTooltip(): this
+ // Removes the tooltip previously bound with `bindTooltip`.
+ unbindTooltip: function () {
+ if (this._tooltip) {
+ this._initTooltipInteractions(true);
+ this.closeTooltip();
+ this._tooltip = null;
+ }
+ return this;
+ },
- var layer;
- this._redrawBounds = null;
- for (var id in this._layers) {
- layer = this._layers[id];
- layer._update();
+ _initTooltipInteractions: function (remove$$1) {
+ if (!remove$$1 && this._tooltipHandlersAdded) { return; }
+ var onOff = remove$$1 ? 'off' : 'on',
+ events = {
+ remove: this.closeTooltip,
+ move: this._moveTooltip
+ };
+ if (!this._tooltip.options.permanent) {
+ events.mouseover = this._openTooltip;
+ events.mouseout = this.closeTooltip;
+ if (this._tooltip.options.sticky) {
+ events.mousemove = this._moveTooltip;
+ }
+ if (touch) {
+ events.click = this._openTooltip;
+ }
+ } else {
+ events.add = this._openTooltip;
}
- this._redraw();
+ this[onOff](events);
+ this._tooltipHandlersAdded = !remove$$1;
},
- _update: function () {
- if (this._map._animatingZoom && this._bounds) { return; }
+ // @method openTooltip(latlng?: LatLng): this
+ // Opens the bound tooltip at the specified `latlng` or at the default tooltip anchor if no `latlng` is passed.
+ openTooltip: function (layer, latlng) {
+ if (this._tooltip && this._map) {
+ latlng = this._tooltip._prepareOpen(this, layer, latlng);
- this._drawnLayers = {};
+ // open the tooltip on the map
+ this._map.openTooltip(this._tooltip, latlng);
- L.Renderer.prototype._update.call(this);
+ // Tooltip container may not be defined if not permanent and never
+ // opened.
+ if (this._tooltip.options.interactive && this._tooltip._container) {
+ addClass(this._tooltip._container, 'leaflet-clickable');
+ this.addInteractiveTarget(this._tooltip._container);
+ }
+ }
- var b = this._bounds,
- container = this._container,
- size = b.getSize(),
- m = L.Browser.retina ? 2 : 1;
+ return this;
+ },
- L.DomUtil.setPosition(container, b.min);
+ // @method closeTooltip(): this
+ // Closes the tooltip bound to this layer if it is open.
+ closeTooltip: function () {
+ if (this._tooltip) {
+ this._tooltip._close();
+ if (this._tooltip.options.interactive && this._tooltip._container) {
+ removeClass(this._tooltip._container, 'leaflet-clickable');
+ this.removeInteractiveTarget(this._tooltip._container);
+ }
+ }
+ return this;
+ },
- // set canvas size (also clearing it); use double size on retina
- container.width = m * size.x;
- container.height = m * size.y;
- container.style.width = size.x + 'px';
- container.style.height = size.y + 'px';
+ // @method toggleTooltip(): this
+ // Opens or closes the tooltip bound to this layer depending on its current state.
+ toggleTooltip: function (target) {
+ if (this._tooltip) {
+ if (this._tooltip._map) {
+ this.closeTooltip();
+ } else {
+ this.openTooltip(target);
+ }
+ }
+ return this;
+ },
+
+ // @method isTooltipOpen(): boolean
+ // Returns `true` if the tooltip bound to this layer is currently open.
+ isTooltipOpen: function () {
+ return this._tooltip.isOpen();
+ },
- if (L.Browser.retina) {
- this._ctx.scale(2, 2);
+ // @method setTooltipContent(content: String|HTMLElement|Tooltip): this
+ // Sets the content of the tooltip bound to this layer.
+ setTooltipContent: function (content) {
+ if (this._tooltip) {
+ this._tooltip.setContent(content);
}
+ return this;
+ },
- // translate so we use the same path coordinates after canvas element moves
- this._ctx.translate(-b.min.x, -b.min.y);
-
- // Tell paths to redraw themselves
- this.fire('update');
+ // @method getTooltip(): Tooltip
+ // Returns the tooltip bound to this layer.
+ getTooltip: function () {
+ return this._tooltip;
},
- _reset: function () {
- L.Renderer.prototype._reset.call(this);
+ _openTooltip: function (e) {
+ var layer = e.layer || e.target;
- if (this._postponeUpdatePaths) {
- this._postponeUpdatePaths = false;
- this._updatePaths();
+ if (!this._tooltip || !this._map) {
+ return;
}
+ this.openTooltip(layer, this._tooltip.options.sticky ? e.latlng : undefined);
},
- _initPath: function (layer) {
- this._updateDashArray(layer);
- this._layers[L.stamp(layer)] = layer;
-
- var order = layer._order = {
- layer: layer,
- prev: this._drawLast,
- next: null
- };
- if (this._drawLast) { this._drawLast.next = order; }
- this._drawLast = order;
- this._drawFirst = this._drawFirst || this._drawLast;
- },
+ _moveTooltip: function (e) {
+ var latlng = e.latlng, containerPoint, layerPoint;
+ if (this._tooltip.options.sticky && e.originalEvent) {
+ containerPoint = this._map.mouseEventToContainerPoint(e.originalEvent);
+ layerPoint = this._map.containerPointToLayerPoint(containerPoint);
+ latlng = this._map.layerPointToLatLng(layerPoint);
+ }
+ this._tooltip.setLatLng(latlng);
+ }
+});
- _addPath: function (layer) {
- this._requestRedraw(layer);
- },
+/*
+ * @class DivIcon
+ * @aka L.DivIcon
+ * @inherits Icon
+ *
+ * Represents a lightweight icon for markers that uses a simple `<div>`
+ * element instead of an image. Inherits from `Icon` but ignores the `iconUrl` and shadow options.
+ *
+ * @example
+ * ```js
+ * var myIcon = L.divIcon({className: 'my-div-icon'});
+ * // you can set .my-div-icon styles in CSS
+ *
+ * L.marker([50.505, 30.57], {icon: myIcon}).addTo(map);
+ * ```
+ *
+ * By default, it has a 'leaflet-div-icon' CSS class and is styled as a little white square with a shadow.
+ */
- _removePath: function (layer) {
- var order = layer._order;
- var next = order.next;
- var prev = order.prev;
+var DivIcon = Icon.extend({
+ options: {
+ // @section
+ // @aka DivIcon options
+ iconSize: [12, 12], // also can be set through CSS
- if (next) {
- next.prev = prev;
- } else {
- this._drawLast = prev;
- }
- if (prev) {
- prev.next = next;
- } else {
- this._drawFirst = next;
- }
+ // iconAnchor: (Point),
+ // popupAnchor: (Point),
- delete layer._order;
+ // @option html: String|HTMLElement = ''
+ // Custom HTML code to put inside the div element, empty by default. Alternatively,
+ // an instance of `HTMLElement`.
+ html: false,
- delete this._layers[L.stamp(layer)];
+ // @option bgPos: Point = [0, 0]
+ // Optional relative position of the background, in pixels
+ bgPos: null,
- this._requestRedraw(layer);
+ className: 'leaflet-div-icon'
},
- _updatePath: function (layer) {
- // Redraw the union of the layer's old pixel
- // bounds and the new pixel bounds.
- this._extendRedrawBounds(layer);
- layer._project();
- layer._update();
- // The redraw will extend the redraw bounds
- // with the new pixel bounds.
- this._requestRedraw(layer);
- },
+ createIcon: function (oldIcon) {
+ var div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'),
+ options = this.options;
- _updateStyle: function (layer) {
- this._updateDashArray(layer);
- this._requestRedraw(layer);
- },
+ if (options.html instanceof Element) {
+ empty(div);
+ div.appendChild(options.html);
+ } else {
+ div.innerHTML = options.html !== false ? options.html : '';
+ }
- _updateDashArray: function (layer) {
- if (layer.options.dashArray) {
- var parts = layer.options.dashArray.split(','),
- dashArray = [],
- i;
- for (i = 0; i < parts.length; i++) {
- dashArray.push(Number(parts[i]));
- }
- layer.options._dashArray = dashArray;
+ if (options.bgPos) {
+ var bgPos = toPoint(options.bgPos);
+ div.style.backgroundPosition = (-bgPos.x) + 'px ' + (-bgPos.y) + 'px';
}
+ this._setIconStyles(div, 'icon');
+
+ return div;
},
- _requestRedraw: function (layer) {
- if (!this._map) { return; }
+ createShadow: function () {
+ return null;
+ }
+});
- this._extendRedrawBounds(layer);
- this._redrawRequest = this._redrawRequest || L.Util.requestAnimFrame(this._redraw, this);
- },
+// @factory L.divIcon(options: DivIcon options)
+// Creates a `DivIcon` instance with the given options.
+function divIcon(options) {
+ return new DivIcon(options);
+}
- _extendRedrawBounds: function (layer) {
- var padding = (layer.options.weight || 0) + 1;
- this._redrawBounds = this._redrawBounds || new L.Bounds();
- this._redrawBounds.extend(layer._pxBounds.min.subtract([padding, padding]));
- this._redrawBounds.extend(layer._pxBounds.max.add([padding, padding]));
- },
+Icon.Default = IconDefault;
- _redraw: function () {
- this._redrawRequest = null;
+/*
+ * @class GridLayer
+ * @inherits Layer
+ * @aka L.GridLayer
+ *
+ * Generic class for handling a tiled grid of HTML elements. This is the base class for all tile layers and replaces `TileLayer.Canvas`.
+ * GridLayer can be extended to create a tiled grid of HTML elements like `<canvas>`, `<img>` or `<div>`. GridLayer will handle creating and animating these DOM elements for you.
+ *
+ *
+ * @section Synchronous usage
+ * @example
+ *
+ * To create a custom layer, extend GridLayer and implement the `createTile()` method, which will be passed a `Point` object with the `x`, `y`, and `z` (zoom level) coordinates to draw your tile.
+ *
+ * ```js
+ * var CanvasLayer = L.GridLayer.extend({
+ * createTile: function(coords){
+ * // create a <canvas> element for drawing
+ * var tile = L.DomUtil.create('canvas', 'leaflet-tile');
+ *
+ * // setup tile width and height according to the options
+ * var size = this.getTileSize();
+ * tile.width = size.x;
+ * tile.height = size.y;
+ *
+ * // get a canvas context and draw something on it using coords.x, coords.y and coords.z
+ * var ctx = tile.getContext('2d');
+ *
+ * // return the tile so it can be rendered on screen
+ * return tile;
+ * }
+ * });
+ * ```
+ *
+ * @section Asynchronous usage
+ * @example
+ *
+ * Tile creation can also be asynchronous, this is useful when using a third-party drawing library. Once the tile is finished drawing it can be passed to the `done()` callback.
+ *
+ * ```js
+ * var CanvasLayer = L.GridLayer.extend({
+ * createTile: function(coords, done){
+ * var error;
+ *
+ * // create a <canvas> element for drawing
+ * var tile = L.DomUtil.create('canvas', 'leaflet-tile');
+ *
+ * // setup tile width and height according to the options
+ * var size = this.getTileSize();
+ * tile.width = size.x;
+ * tile.height = size.y;
+ *
+ * // draw something asynchronously and pass the tile to the done() callback
+ * setTimeout(function() {
+ * done(error, tile);
+ * }, 1000);
+ *
+ * return tile;
+ * }
+ * });
+ * ```
+ *
+ * @section
+ */
- if (this._redrawBounds) {
- this._redrawBounds.min._floor();
- this._redrawBounds.max._ceil();
- }
- this._clear(); // clear layers in redraw bounds
- this._draw(); // draw layers
+var GridLayer = Layer.extend({
- this._redrawBounds = null;
- },
+ // @section
+ // @aka GridLayer options
+ options: {
+ // @option tileSize: Number|Point = 256
+ // Width and height of tiles in the grid. Use a number if width and height are equal, or `L.point(width, height)` otherwise.
+ tileSize: 256,
- _clear: function () {
- var bounds = this._redrawBounds;
- if (bounds) {
- var size = bounds.getSize();
- this._ctx.clearRect(bounds.min.x, bounds.min.y, size.x, size.y);
- } else {
- this._ctx.clearRect(0, 0, this._container.width, this._container.height);
- }
- },
+ // @option opacity: Number = 1.0
+ // Opacity of the tiles. Can be used in the `createTile()` function.
+ opacity: 1,
- _draw: function () {
- var layer, bounds = this._redrawBounds;
- this._ctx.save();
- if (bounds) {
- var size = bounds.getSize();
- this._ctx.beginPath();
- this._ctx.rect(bounds.min.x, bounds.min.y, size.x, size.y);
- this._ctx.clip();
- }
+ // @option updateWhenIdle: Boolean = (depends)
+ // Load new tiles only when panning ends.
+ // `true` by default on mobile browsers, in order to avoid too many requests and keep smooth navigation.
+ // `false` otherwise in order to display new tiles _during_ panning, since it is easy to pan outside the
+ // [`keepBuffer`](#gridlayer-keepbuffer) option in desktop browsers.
+ updateWhenIdle: mobile,
- this._drawing = true;
+ // @option updateWhenZooming: Boolean = true
+ // By default, a smooth zoom animation (during a [touch zoom](#map-touchzoom) or a [`flyTo()`](#map-flyto)) will update grid layers every integer zoom level. Setting this option to `false` will update the grid layer only when the smooth animation ends.
+ updateWhenZooming: true,
- for (var order = this._drawFirst; order; order = order.next) {
- layer = order.layer;
- if (!bounds || (layer._pxBounds && layer._pxBounds.intersects(bounds))) {
- layer._updatePath();
- }
- }
+ // @option updateInterval: Number = 200
+ // Tiles will not update more than once every `updateInterval` milliseconds when panning.
+ updateInterval: 200,
- this._drawing = false;
+ // @option zIndex: Number = 1
+ // The explicit zIndex of the tile layer.
+ zIndex: 1,
- this._ctx.restore(); // Restore state before clipping.
- },
+ // @option bounds: LatLngBounds = undefined
+ // If set, tiles will only be loaded inside the set `LatLngBounds`.
+ bounds: null,
- _updatePoly: function (layer, closed) {
- if (!this._drawing) { return; }
+ // @option minZoom: Number = 0
+ // The minimum zoom level down to which this layer will be displayed (inclusive).
+ minZoom: 0,
- var i, j, len2, p,
- parts = layer._parts,
- len = parts.length,
- ctx = this._ctx;
+ // @option maxZoom: Number = undefined
+ // The maximum zoom level up to which this layer will be displayed (inclusive).
+ maxZoom: undefined,
- if (!len) { return; }
+ // @option maxNativeZoom: Number = undefined
+ // Maximum zoom number the tile source has available. If it is specified,
+ // the tiles on all zoom levels higher than `maxNativeZoom` will be loaded
+ // from `maxNativeZoom` level and auto-scaled.
+ maxNativeZoom: undefined,
- this._drawnLayers[layer._leaflet_id] = layer;
+ // @option minNativeZoom: Number = undefined
+ // Minimum zoom number the tile source has available. If it is specified,
+ // the tiles on all zoom levels lower than `minNativeZoom` will be loaded
+ // from `minNativeZoom` level and auto-scaled.
+ minNativeZoom: undefined,
- ctx.beginPath();
+ // @option noWrap: Boolean = false
+ // Whether the layer is wrapped around the antimeridian. If `true`, the
+ // GridLayer will only be displayed once at low zoom levels. Has no
+ // effect when the [map CRS](#map-crs) doesn't wrap around. Can be used
+ // in combination with [`bounds`](#gridlayer-bounds) to prevent requesting
+ // tiles outside the CRS limits.
+ noWrap: false,
- if (ctx.setLineDash) {
- ctx.setLineDash(layer.options && layer.options._dashArray || []);
- }
+ // @option pane: String = 'tilePane'
+ // `Map pane` where the grid layer will be added.
+ pane: 'tilePane',
- for (i = 0; i < len; i++) {
- for (j = 0, len2 = parts[i].length; j < len2; j++) {
- p = parts[i][j];
- ctx[j ? 'lineTo' : 'moveTo'](p.x, p.y);
- }
- if (closed) {
- ctx.closePath();
- }
- }
+ // @option className: String = ''
+ // A custom class name to assign to the tile layer. Empty by default.
+ className: '',
- this._fillStroke(ctx, layer);
+ // @option keepBuffer: Number = 2
+ // When panning the map, keep this many rows and columns of tiles before unloading them.
+ keepBuffer: 2
+ },
- // TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature
+ initialize: function (options) {
+ setOptions(this, options);
},
- _updateCircle: function (layer) {
+ onAdd: function () {
+ this._initContainer();
- if (!this._drawing || layer._empty()) { return; }
+ this._levels = {};
+ this._tiles = {};
- var p = layer._point,
- ctx = this._ctx,
- r = layer._radius,
- s = (layer._radiusY || r) / r;
+ this._resetView();
+ this._update();
+ },
- this._drawnLayers[layer._leaflet_id] = layer;
+ beforeAdd: function (map) {
+ map._addZoomLimit(this);
+ },
- if (s !== 1) {
- ctx.save();
- ctx.scale(1, s);
- }
+ onRemove: function (map) {
+ this._removeAllTiles();
+ remove(this._container);
+ map._removeZoomLimit(this);
+ this._container = null;
+ this._tileZoom = undefined;
+ },
- ctx.beginPath();
- ctx.arc(p.x, p.y / s, r, 0, Math.PI * 2, false);
+ // @method bringToFront: this
+ // Brings the tile layer to the top of all tile layers.
+ bringToFront: function () {
+ if (this._map) {
+ toFront(this._container);
+ this._setAutoZIndex(Math.max);
+ }
+ return this;
+ },
- if (s !== 1) {
- ctx.restore();
+ // @method bringToBack: this
+ // Brings the tile layer to the bottom of all tile layers.
+ bringToBack: function () {
+ if (this._map) {
+ toBack(this._container);
+ this._setAutoZIndex(Math.min);
}
+ return this;
+ },
- this._fillStroke(ctx, layer);
+ // @method getContainer: HTMLElement
+ // Returns the HTML element that contains the tiles for this layer.
+ getContainer: function () {
+ return this._container;
},
- _fillStroke: function (ctx, layer) {
- var options = layer.options;
+ // @method setOpacity(opacity: Number): this
+ // Changes the [opacity](#gridlayer-opacity) of the grid layer.
+ setOpacity: function (opacity) {
+ this.options.opacity = opacity;
+ this._updateOpacity();
+ return this;
+ },
- if (options.fill) {
- ctx.globalAlpha = options.fillOpacity;
- ctx.fillStyle = options.fillColor || options.color;
- ctx.fill(options.fillRule || 'evenodd');
- }
+ // @method setZIndex(zIndex: Number): this
+ // Changes the [zIndex](#gridlayer-zindex) of the grid layer.
+ setZIndex: function (zIndex) {
+ this.options.zIndex = zIndex;
+ this._updateZIndex();
- if (options.stroke && options.weight !== 0) {
- ctx.globalAlpha = options.opacity;
- ctx.lineWidth = options.weight;
- ctx.strokeStyle = options.color;
- ctx.lineCap = options.lineCap;
- ctx.lineJoin = options.lineJoin;
- ctx.stroke();
- }
+ return this;
},
- // Canvas obviously doesn't have mouse events for individual drawn objects,
- // so we emulate that by calculating what's under the mouse on mousemove/click manually
+ // @method isLoading: Boolean
+ // Returns `true` if any tile in the grid layer has not finished loading.
+ isLoading: function () {
+ return this._loading;
+ },
- _onClick: function (e) {
- var point = this._map.mouseEventToLayerPoint(e), layer, clickedLayer;
+ // @method redraw: this
+ // Causes the layer to clear all the tiles and request them again.
+ redraw: function () {
+ if (this._map) {
+ this._removeAllTiles();
+ this._update();
+ }
+ return this;
+ },
- for (var order = this._drawFirst; order; order = order.next) {
- layer = order.layer;
- if (layer.options.interactive && layer._containsPoint(point) && !this._map._draggableMoved(layer)) {
- clickedLayer = layer;
+ getEvents: function () {
+ var events = {
+ viewprereset: this._invalidateAll,
+ viewreset: this._resetView,
+ zoom: this._resetView,
+ moveend: this._onMoveEnd
+ };
+
+ if (!this.options.updateWhenIdle) {
+ // update tiles on move, but not more often than once per given interval
+ if (!this._onMove) {
+ this._onMove = throttle(this._onMoveEnd, this.options.updateInterval, this);
}
+
+ events.move = this._onMove;
}
- if (clickedLayer) {
- L.DomEvent._fakeStop(e);
- this._fireEvent([clickedLayer], e);
+
+ if (this._zoomAnimated) {
+ events.zoomanim = this._animateZoom;
}
- },
- _onMouseMove: function (e) {
- if (!this._map || this._map.dragging.moving() || this._map._animatingZoom) { return; }
+ return events;
+ },
- var point = this._map.mouseEventToLayerPoint(e);
- this._handleMouseHover(e, point);
+ // @section Extension methods
+ // Layers extending `GridLayer` shall reimplement the following method.
+ // @method createTile(coords: Object, done?: Function): HTMLElement
+ // Called only internally, must be overridden by classes extending `GridLayer`.
+ // Returns the `HTMLElement` corresponding to the given `coords`. If the `done` callback
+ // is specified, it must be called when the tile has finished loading and drawing.
+ createTile: function () {
+ return document.createElement('div');
},
+ // @section
+ // @method getTileSize: Point
+ // Normalizes the [tileSize option](#gridlayer-tilesize) into a point. Used by the `createTile()` method.
+ getTileSize: function () {
+ var s = this.options.tileSize;
+ return s instanceof Point ? s : new Point(s, s);
+ },
- _handleMouseOut: function (e) {
- var layer = this._hoveredLayer;
- if (layer) {
- // if we're leaving the layer, fire mouseout
- L.DomUtil.removeClass(this._container, 'leaflet-interactive');
- this._fireEvent([layer], e, 'mouseout');
- this._hoveredLayer = null;
+ _updateZIndex: function () {
+ if (this._container && this.options.zIndex !== undefined && this.options.zIndex !== null) {
+ this._container.style.zIndex = this.options.zIndex;
}
},
- _handleMouseHover: function (e, point) {
- var layer, candidateHoveredLayer;
+ _setAutoZIndex: function (compare) {
+ // go through all other layers of the same pane, set zIndex to max + 1 (front) or min - 1 (back)
- for (var order = this._drawFirst; order; order = order.next) {
- layer = order.layer;
- if (layer.options.interactive && layer._containsPoint(point)) {
- candidateHoveredLayer = layer;
- }
- }
+ var layers = this.getPane().children,
+ edgeZIndex = -compare(-Infinity, Infinity); // -Infinity for max, Infinity for min
- if (candidateHoveredLayer !== this._hoveredLayer) {
- this._handleMouseOut(e);
+ for (var i = 0, len = layers.length, zIndex; i < len; i++) {
- if (candidateHoveredLayer) {
- L.DomUtil.addClass(this._container, 'leaflet-interactive'); // change cursor
- this._fireEvent([candidateHoveredLayer], e, 'mouseover');
- this._hoveredLayer = candidateHoveredLayer;
+ zIndex = layers[i].style.zIndex;
+
+ if (layers[i] !== this._container && zIndex) {
+ edgeZIndex = compare(edgeZIndex, +zIndex);
}
}
- if (this._hoveredLayer) {
- this._fireEvent([this._hoveredLayer], e);
+ if (isFinite(edgeZIndex)) {
+ this.options.zIndex = edgeZIndex + compare(-1, 1);
+ this._updateZIndex();
}
},
- _fireEvent: function (layers, e, type) {
- this._map._fireDOMEvent(e, type || e.type, layers);
- },
-
- _bringToFront: function (layer) {
- var order = layer._order;
- var next = order.next;
- var prev = order.prev;
+ _updateOpacity: function () {
+ if (!this._map) { return; }
- if (next) {
- next.prev = prev;
- } else {
- // Already last
- return;
- }
- if (prev) {
- prev.next = next;
- } else if (next) {
- // Update first entry unless this is the
- // signle entry
- this._drawFirst = next;
- }
+ // IE doesn't inherit filter opacity properly, so we're forced to set it on tiles
+ if (ielt9) { return; }
- order.prev = this._drawLast;
- this._drawLast.next = order;
+ setOpacity(this._container, this.options.opacity);
- order.next = null;
- this._drawLast = order;
+ var now = +new Date(),
+ nextFrame = false,
+ willPrune = false;
- this._requestRedraw(layer);
- },
+ for (var key in this._tiles) {
+ var tile = this._tiles[key];
+ if (!tile.current || !tile.loaded) { continue; }
- _bringToBack: function (layer) {
- var order = layer._order;
- var next = order.next;
- var prev = order.prev;
+ var fade = Math.min(1, (now - tile.loaded) / 200);
- if (prev) {
- prev.next = next;
- } else {
- // Already first
- return;
- }
- if (next) {
- next.prev = prev;
- } else if (prev) {
- // Update last entry unless this is the
- // signle entry
- this._drawLast = prev;
+ setOpacity(tile.el, fade);
+ if (fade < 1) {
+ nextFrame = true;
+ } else {
+ if (tile.active) {
+ willPrune = true;
+ } else {
+ this._onOpaqueTile(tile);
+ }
+ tile.active = true;
+ }
}
- order.prev = null;
+ if (willPrune && !this._noPrune) { this._pruneTiles(); }
- order.next = this._drawFirst;
- this._drawFirst.prev = order;
- this._drawFirst = order;
+ if (nextFrame) {
+ cancelAnimFrame(this._fadeFrame);
+ this._fadeFrame = requestAnimFrame(this._updateOpacity, this);
+ }
+ },
- this._requestRedraw(layer);
- }
-});
+ _onOpaqueTile: falseFn,
-// @namespace Browser; @property canvas: Boolean
-// `true` when the browser supports [`<canvas>`](https://developer.mozilla.org/docs/Web/API/Canvas_API).
-L.Browser.canvas = (function () {
- return !!document.createElement('canvas').getContext;
-}());
+ _initContainer: function () {
+ if (this._container) { return; }
-// @namespace Canvas
-// @factory L.canvas(options?: Renderer options)
-// Creates a Canvas renderer with the given options.
-L.canvas = function (options) {
- return L.Browser.canvas ? new L.Canvas(options) : null;
-};
+ this._container = create$1('div', 'leaflet-layer ' + (this.options.className || ''));
+ this._updateZIndex();
+
+ if (this.options.opacity < 1) {
+ this._updateOpacity();
+ }
-L.Polyline.prototype._containsPoint = function (p, closed) {
- var i, j, k, len, len2, part,
- w = this._clickTolerance();
+ this.getPane().appendChild(this._container);
+ },
- if (!this._pxBounds.contains(p)) { return false; }
+ _updateLevels: function () {
- // hit detection for polylines
- for (i = 0, len = this._parts.length; i < len; i++) {
- part = this._parts[i];
+ var zoom = this._tileZoom,
+ maxZoom = this.options.maxZoom;
- for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
- if (!closed && (j === 0)) { continue; }
+ if (zoom === undefined) { return undefined; }
- if (L.LineUtil.pointToSegmentDistance(p, part[k], part[j]) <= w) {
- return true;
+ for (var z in this._levels) {
+ if (this._levels[z].el.children.length || z === zoom) {
+ this._levels[z].el.style.zIndex = maxZoom - Math.abs(zoom - z);
+ this._onUpdateLevel(z);
+ } else {
+ remove(this._levels[z].el);
+ this._removeTilesAtZoom(z);
+ this._onRemoveLevel(z);
+ delete this._levels[z];
}
}
- }
- return false;
-};
-L.Polygon.prototype._containsPoint = function (p) {
- var inside = false,
- part, p1, p2, i, j, k, len, len2;
+ var level = this._levels[zoom],
+ map = this._map;
- if (!this._pxBounds.contains(p)) { return false; }
+ if (!level) {
+ level = this._levels[zoom] = {};
- // ray casting algorithm for detecting if point is in polygon
- for (i = 0, len = this._parts.length; i < len; i++) {
- part = this._parts[i];
+ level.el = create$1('div', 'leaflet-tile-container leaflet-zoom-animated', this._container);
+ level.el.style.zIndex = maxZoom;
- for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
- p1 = part[j];
- p2 = part[k];
+ level.origin = map.project(map.unproject(map.getPixelOrigin()), zoom).round();
+ level.zoom = zoom;
- 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;
- }
- }
- }
+ this._setZoomTransform(level, map.getCenter(), map.getZoom());
- // also check if it's on polygon stroke
- return inside || L.Polyline.prototype._containsPoint.call(this, p, true);
-};
+ // force the browser to consider the newly added element for transition
+ falseFn(level.el.offsetWidth);
-L.CircleMarker.prototype._containsPoint = function (p) {
- return p.distanceTo(this._point) <= this._radius + this._clickTolerance();
-};
+ this._onCreateLevel(level);
+ }
+ this._level = level;
+ return level;
+ },
-/*
- * @class GeoJSON
- * @aka L.GeoJSON
- * @inherits FeatureGroup
- *
- * Represents a GeoJSON object or an array of GeoJSON objects. Allows you to parse
- * GeoJSON data and display it on the map. Extends `FeatureGroup`.
- *
- * @example
- *
- * ```js
- * L.geoJSON(data, {
- * style: function (feature) {
- * return {color: feature.properties.color};
- * }
- * }).bindPopup(function (layer) {
- * return layer.feature.properties.description;
- * }).addTo(map);
- * ```
- */
+ _onUpdateLevel: falseFn,
-L.GeoJSON = L.FeatureGroup.extend({
+ _onRemoveLevel: falseFn,
- /* @section
- * @aka GeoJSON options
- *
- * @option pointToLayer: Function = *
- * A `Function` defining how GeoJSON points spawn Leaflet layers. It is internally
- * called when data is added, passing the GeoJSON point feature and its `LatLng`.
- * The default is to spawn a default `Marker`:
- * ```js
- * function(geoJsonPoint, latlng) {
- * return L.marker(latlng);
- * }
- * ```
- *
- * @option style: Function = *
- * A `Function` defining the `Path options` for styling GeoJSON lines and polygons,
- * called internally when data is added.
- * The default value is to not override any defaults:
- * ```js
- * function (geoJsonFeature) {
- * return {}
- * }
- * ```
- *
- * @option onEachFeature: Function = *
- * A `Function` that will be called once for each created `Feature`, after it has
- * been created and styled. Useful for attaching events and popups to features.
- * The default is to do nothing with the newly created layers:
- * ```js
- * function (feature, layer) {}
- * ```
- *
- * @option filter: Function = *
- * A `Function` that will be used to decide whether to include a feature or not.
- * The default is to include all features:
- * ```js
- * function (geoJsonFeature) {
- * return true;
- * }
- * ```
- * Note: dynamically changing the `filter` option will have effect only on newly
- * added data. It will _not_ re-evaluate already included features.
- *
- * @option coordsToLatLng: Function = *
- * A `Function` that will be used for converting GeoJSON coordinates to `LatLng`s.
- * The default is the `coordsToLatLng` static method.
- */
+ _onCreateLevel: falseFn,
- initialize: function (geojson, options) {
- L.setOptions(this, options);
+ _pruneTiles: function () {
+ if (!this._map) {
+ return;
+ }
- this._layers = {};
+ var key, tile;
- if (geojson) {
- this.addData(geojson);
+ var zoom = this._map.getZoom();
+ if (zoom > this.options.maxZoom ||
+ zoom < this.options.minZoom) {
+ this._removeAllTiles();
+ return;
}
- },
- // @method addData( <GeoJSON> data ): this
- // Adds a GeoJSON object to the layer.
- addData: function (geojson) {
- var features = L.Util.isArray(geojson) ? geojson : geojson.features,
- i, len, feature;
+ for (key in this._tiles) {
+ tile = this._tiles[key];
+ tile.retain = tile.current;
+ }
- if (features) {
- for (i = 0, len = features.length; i < len; i++) {
- // only add this if geometry or geometries are set and not null
- feature = features[i];
- if (feature.geometries || feature.geometry || feature.features || feature.coordinates) {
- this.addData(feature);
+ for (key in this._tiles) {
+ tile = this._tiles[key];
+ if (tile.current && !tile.active) {
+ var coords = tile.coords;
+ if (!this._retainParent(coords.x, coords.y, coords.z, coords.z - 5)) {
+ this._retainChildren(coords.x, coords.y, coords.z, coords.z + 2);
}
}
- return this;
}
- var options = this.options;
-
- if (options.filter && !options.filter(geojson)) { return this; }
+ for (key in this._tiles) {
+ if (!this._tiles[key].retain) {
+ this._removeTile(key);
+ }
+ }
+ },
- var layer = L.GeoJSON.geometryToLayer(geojson, options);
- if (!layer) {
- return this;
+ _removeTilesAtZoom: function (zoom) {
+ for (var key in this._tiles) {
+ if (this._tiles[key].coords.z !== zoom) {
+ continue;
+ }
+ this._removeTile(key);
}
- layer.feature = L.GeoJSON.asFeature(geojson);
+ },
- layer.defaultOptions = layer.options;
- this.resetStyle(layer);
+ _removeAllTiles: function () {
+ for (var key in this._tiles) {
+ this._removeTile(key);
+ }
+ },
- if (options.onEachFeature) {
- options.onEachFeature(geojson, layer);
+ _invalidateAll: function () {
+ for (var z in this._levels) {
+ remove(this._levels[z].el);
+ this._onRemoveLevel(z);
+ delete this._levels[z];
}
+ this._removeAllTiles();
- return this.addLayer(layer);
+ this._tileZoom = undefined;
},
- // @method resetStyle( <Path> layer ): this
- // Resets the given vector layer's style to the original GeoJSON style, useful for resetting style after hover events.
- resetStyle: function (layer) {
- // reset any custom styles
- layer.options = L.Util.extend({}, layer.defaultOptions);
- this._setLayerStyle(layer, this.options.style);
- return this;
- },
+ _retainParent: function (x, y, z, minZoom) {
+ var x2 = Math.floor(x / 2),
+ y2 = Math.floor(y / 2),
+ z2 = z - 1,
+ coords2 = new Point(+x2, +y2);
+ coords2.z = +z2;
- // @method setStyle( <Function> style ): this
- // Changes styles of GeoJSON vector layers with the given style function.
- setStyle: function (style) {
- return this.eachLayer(function (layer) {
- this._setLayerStyle(layer, style);
- }, this);
- },
+ var key = this._tileCoordsToKey(coords2),
+ tile = this._tiles[key];
- _setLayerStyle: function (layer, style) {
- if (typeof style === 'function') {
- style = style(layer.feature);
- }
- if (layer.setStyle) {
- layer.setStyle(style);
+ if (tile && tile.active) {
+ tile.retain = true;
+ return true;
+
+ } else if (tile && tile.loaded) {
+ tile.retain = true;
}
- }
-});
-// @section
-// There are several static functions which can be called without instantiating L.GeoJSON:
-L.extend(L.GeoJSON, {
- // @function geometryToLayer(featureData: Object, options?: GeoJSON options): Layer
- // Creates a `Layer` from a given GeoJSON feature. Can use a custom
- // [`pointToLayer`](#geojson-pointtolayer) and/or [`coordsToLatLng`](#geojson-coordstolatlng)
- // functions if provided as options.
- geometryToLayer: function (geojson, options) {
-
- var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson,
- coords = geometry ? geometry.coordinates : null,
- layers = [],
- pointToLayer = options && options.pointToLayer,
- coordsToLatLng = options && options.coordsToLatLng || this.coordsToLatLng,
- latlng, latlngs, i, len;
-
- if (!coords && !geometry) {
- return null;
+ if (z2 > minZoom) {
+ return this._retainParent(x2, y2, z2, minZoom);
}
- switch (geometry.type) {
- case 'Point':
- latlng = coordsToLatLng(coords);
- return pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng);
+ return false;
+ },
- case 'MultiPoint':
- for (i = 0, len = coords.length; i < len; i++) {
- latlng = coordsToLatLng(coords[i]);
- layers.push(pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng));
- }
- return new L.FeatureGroup(layers);
-
- case 'LineString':
- case 'MultiLineString':
- latlngs = this.coordsToLatLngs(coords, geometry.type === 'LineString' ? 0 : 1, coordsToLatLng);
- return new L.Polyline(latlngs, options);
-
- case 'Polygon':
- case 'MultiPolygon':
- latlngs = this.coordsToLatLngs(coords, geometry.type === 'Polygon' ? 1 : 2, coordsToLatLng);
- return new L.Polygon(latlngs, options);
-
- case 'GeometryCollection':
- for (i = 0, len = geometry.geometries.length; i < len; i++) {
- var layer = this.geometryToLayer({
- geometry: geometry.geometries[i],
- type: 'Feature',
- properties: geojson.properties
- }, options);
-
- if (layer) {
- layers.push(layer);
- }
- }
- return new L.FeatureGroup(layers);
+ _retainChildren: function (x, y, z, maxZoom) {
- default:
- throw new Error('Invalid GeoJSON object.');
- }
- },
+ for (var i = 2 * x; i < 2 * x + 2; i++) {
+ for (var j = 2 * y; j < 2 * y + 2; j++) {
- // @function coordsToLatLng(coords: Array): LatLng
- // Creates a `LatLng` object from an array of 2 numbers (longitude, latitude)
- // or 3 numbers (longitude, latitude, altitude) used in GeoJSON for points.
- coordsToLatLng: function (coords) {
- return new L.LatLng(coords[1], coords[0], coords[2]);
- },
+ var coords = new Point(i, j);
+ coords.z = z + 1;
+
+ var key = this._tileCoordsToKey(coords),
+ tile = this._tiles[key];
- // @function coordsToLatLngs(coords: Array, levelsDeep?: Number, coordsToLatLng?: Function): Array
- // Creates a multidimensional array of `LatLng`s from a GeoJSON coordinates array.
- // `levelsDeep` specifies the nesting level (0 is for an array of points, 1 for an array of arrays of points, etc., 0 by default).
- // Can use a custom [`coordsToLatLng`](#geojson-coordstolatlng) function.
- coordsToLatLngs: function (coords, levelsDeep, coordsToLatLng) {
- var latlngs = [];
+ if (tile && tile.active) {
+ tile.retain = true;
+ continue;
- for (var i = 0, len = coords.length, latlng; i < len; i++) {
- latlng = levelsDeep ?
- this.coordsToLatLngs(coords[i], levelsDeep - 1, coordsToLatLng) :
- (coordsToLatLng || this.coordsToLatLng)(coords[i]);
+ } else if (tile && tile.loaded) {
+ tile.retain = true;
+ }
- latlngs.push(latlng);
+ if (z + 1 < maxZoom) {
+ this._retainChildren(i, j, z + 1, maxZoom);
+ }
+ }
}
+ },
- return latlngs;
+ _resetView: function (e) {
+ var animating = e && (e.pinch || e.flyTo);
+ this._setView(this._map.getCenter(), this._map.getZoom(), animating, animating);
},
- // @function latLngToCoords(latlng: LatLng): Array
- // Reverse of [`coordsToLatLng`](#geojson-coordstolatlng)
- latLngToCoords: function (latlng) {
- return latlng.alt !== undefined ?
- [latlng.lng, latlng.lat, latlng.alt] :
- [latlng.lng, latlng.lat];
+ _animateZoom: function (e) {
+ this._setView(e.center, e.zoom, true, e.noUpdate);
},
- // @function latLngsToCoords(latlngs: Array, levelsDeep?: Number, closed?: Boolean): Array
- // Reverse of [`coordsToLatLngs`](#geojson-coordstolatlngs)
- // `closed` determines whether the first point should be appended to the end of the array to close the feature, only used when `levelsDeep` is 0. False by default.
- latLngsToCoords: function (latlngs, levelsDeep, closed) {
- var coords = [];
+ _clampZoom: function (zoom) {
+ var options = this.options;
- for (var i = 0, len = latlngs.length; i < len; i++) {
- coords.push(levelsDeep ?
- L.GeoJSON.latLngsToCoords(latlngs[i], levelsDeep - 1, closed) :
- L.GeoJSON.latLngToCoords(latlngs[i]));
+ if (undefined !== options.minNativeZoom && zoom < options.minNativeZoom) {
+ return options.minNativeZoom;
}
- if (!levelsDeep && closed) {
- coords.push(coords[0]);
+ if (undefined !== options.maxNativeZoom && options.maxNativeZoom < zoom) {
+ return options.maxNativeZoom;
}
- return coords;
- },
-
- getFeature: function (layer, newGeometry) {
- return layer.feature ?
- L.extend({}, layer.feature, {geometry: newGeometry}) :
- L.GeoJSON.asFeature(newGeometry);
+ return zoom;
},
- // @function asFeature(geojson: Object): Object
- // Normalize GeoJSON geometries/features into GeoJSON features.
- asFeature: function (geojson) {
- if (geojson.type === 'Feature' || geojson.type === 'FeatureCollection') {
- return geojson;
+ _setView: function (center, zoom, noPrune, noUpdate) {
+ var tileZoom = this._clampZoom(Math.round(zoom));
+ if ((this.options.maxZoom !== undefined && tileZoom > this.options.maxZoom) ||
+ (this.options.minZoom !== undefined && tileZoom < this.options.minZoom)) {
+ tileZoom = undefined;
}
- return {
- type: 'Feature',
- properties: {},
- geometry: geojson
- };
- }
-});
-
-var PointToGeoJSON = {
- toGeoJSON: function () {
- return L.GeoJSON.getFeature(this, {
- type: 'Point',
- coordinates: L.GeoJSON.latLngToCoords(this.getLatLng())
- });
- }
-};
-
-// @namespace Marker
-// @method toGeoJSON(): Object
-// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the marker (as a GeoJSON `Point` Feature).
-L.Marker.include(PointToGeoJSON);
-
-// @namespace CircleMarker
-// @method toGeoJSON(): Object
-// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the circle marker (as a GeoJSON `Point` Feature).
-L.Circle.include(PointToGeoJSON);
-L.CircleMarker.include(PointToGeoJSON);
-
-
-// @namespace Polyline
-// @method toGeoJSON(): Object
-// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polyline (as a GeoJSON `LineString` or `MultiLineString` Feature).
-L.Polyline.prototype.toGeoJSON = function () {
- var multi = !L.Polyline._flat(this._latlngs);
-
- var coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 1 : 0);
-
- return L.GeoJSON.getFeature(this, {
- type: (multi ? 'Multi' : '') + 'LineString',
- coordinates: coords
- });
-};
+ var tileZoomChanged = this.options.updateWhenZooming && (tileZoom !== this._tileZoom);
-// @namespace Polygon
-// @method toGeoJSON(): Object
-// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the polygon (as a GeoJSON `Polygon` or `MultiPolygon` Feature).
-L.Polygon.prototype.toGeoJSON = function () {
- var holes = !L.Polyline._flat(this._latlngs),
- multi = holes && !L.Polyline._flat(this._latlngs[0]);
+ if (!noUpdate || tileZoomChanged) {
- var coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 2 : holes ? 1 : 0, true);
+ this._tileZoom = tileZoom;
- if (!holes) {
- coords = [coords];
- }
+ if (this._abortLoading) {
+ this._abortLoading();
+ }
- return L.GeoJSON.getFeature(this, {
- type: (multi ? 'Multi' : '') + 'Polygon',
- coordinates: coords
- });
-};
+ this._updateLevels();
+ this._resetGrid();
+ if (tileZoom !== undefined) {
+ this._update(center);
+ }
-// @namespace LayerGroup
-L.LayerGroup.include({
- toMultiPoint: function () {
- var coords = [];
+ if (!noPrune) {
+ this._pruneTiles();
+ }
- this.eachLayer(function (layer) {
- coords.push(layer.toGeoJSON().geometry.coordinates);
- });
+ // Flag to prevent _updateOpacity from pruning tiles during
+ // a zoom anim or a pinch gesture
+ this._noPrune = !!noPrune;
+ }
- return L.GeoJSON.getFeature(this, {
- type: 'MultiPoint',
- coordinates: coords
- });
+ this._setZoomTransforms(center, zoom);
},
- // @method toGeoJSON(): Object
- // Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the layer group (as a GeoJSON `GeometryCollection`).
- toGeoJSON: function () {
-
- var type = this.feature && this.feature.geometry && this.feature.geometry.type;
-
- if (type === 'MultiPoint') {
- return this.toMultiPoint();
+ _setZoomTransforms: function (center, zoom) {
+ for (var i in this._levels) {
+ this._setZoomTransform(this._levels[i], center, zoom);
}
+ },
- var isGeometryCollection = type === 'GeometryCollection',
- jsons = [];
-
- this.eachLayer(function (layer) {
- if (layer.toGeoJSON) {
- var json = layer.toGeoJSON();
- jsons.push(isGeometryCollection ? json.geometry : L.GeoJSON.asFeature(json));
- }
- });
+ _setZoomTransform: function (level, center, zoom) {
+ var scale = this._map.getZoomScale(zoom, level.zoom),
+ translate = level.origin.multiplyBy(scale)
+ .subtract(this._map._getNewPixelOrigin(center, zoom)).round();
- if (isGeometryCollection) {
- return L.GeoJSON.getFeature(this, {
- geometries: jsons,
- type: 'GeometryCollection'
- });
+ if (any3d) {
+ setTransform(level.el, translate, scale);
+ } else {
+ setPosition(level.el, translate);
}
+ },
- return {
- type: 'FeatureCollection',
- features: jsons
- };
- }
-});
-
-// @namespace GeoJSON
-// @factory L.geoJSON(geojson?: Object, options?: GeoJSON options)
-// Creates a GeoJSON layer. Optionally accepts an object in
-// [GeoJSON format](http://geojson.org/geojson-spec.html) to display on the map
-// (you can alternatively add it later with `addData` method) and an `options` object.
-L.geoJSON = function (geojson, options) {
- return new L.GeoJSON(geojson, options);
-};
-// Backward compatibility.
-L.geoJson = L.geoJSON;
-
+ _resetGrid: function () {
+ var map = this._map,
+ crs = map.options.crs,
+ tileSize = this._tileSize = this.getTileSize(),
+ tileZoom = this._tileZoom;
+ var bounds = this._map.getPixelWorldBounds(this._tileZoom);
+ if (bounds) {
+ this._globalTileRange = this._pxBoundsToTileRange(bounds);
+ }
-/*
- * @class Draggable
- * @aka L.Draggable
- * @inherits Evented
- *
- * A class for making DOM elements draggable (including touch support).
- * Used internally for map and marker dragging. Only works for elements
- * that were positioned with [`L.DomUtil.setPosition`](#domutil-setposition).
- *
- * @example
- * ```js
- * var draggable = new L.Draggable(elementToDrag);
- * draggable.enable();
- * ```
- */
+ this._wrapX = crs.wrapLng && !this.options.noWrap && [
+ Math.floor(map.project([0, crs.wrapLng[0]], tileZoom).x / tileSize.x),
+ Math.ceil(map.project([0, crs.wrapLng[1]], tileZoom).x / tileSize.y)
+ ];
+ this._wrapY = crs.wrapLat && !this.options.noWrap && [
+ Math.floor(map.project([crs.wrapLat[0], 0], tileZoom).y / tileSize.x),
+ Math.ceil(map.project([crs.wrapLat[1], 0], tileZoom).y / tileSize.y)
+ ];
+ },
-L.Draggable = L.Evented.extend({
+ _onMoveEnd: function () {
+ if (!this._map || this._map._animatingZoom) { return; }
- options: {
- // @option clickTolerance: Number = 3
- // The max number of pixels a user can shift the mouse pointer during a click
- // for it to be considered a valid click (as opposed to a mouse drag).
- clickTolerance: 3
+ this._update();
},
- statics: {
- START: L.Browser.touch ? ['touchstart', 'mousedown'] : ['mousedown'],
- END: {
- mousedown: 'mouseup',
- touchstart: 'touchend',
- pointerdown: 'touchend',
- MSPointerDown: 'touchend'
- },
- MOVE: {
- mousedown: 'mousemove',
- touchstart: 'touchmove',
- pointerdown: 'touchmove',
- MSPointerDown: 'touchmove'
- }
- },
+ _getTiledPixelBounds: function (center) {
+ var map = this._map,
+ mapZoom = map._animatingZoom ? Math.max(map._animateToZoom, map.getZoom()) : map.getZoom(),
+ scale = map.getZoomScale(mapZoom, this._tileZoom),
+ pixelCenter = map.project(center, this._tileZoom).floor(),
+ halfSize = map.getSize().divideBy(scale * 2);
- // @constructor L.Draggable(el: HTMLElement, dragHandle?: HTMLElement, preventOutline: Boolean)
- // Creates a `Draggable` object for moving `el` when you start dragging the `dragHandle` element (equals `el` itself by default).
- initialize: function (element, dragStartTarget, preventOutline) {
- this._element = element;
- this._dragStartTarget = dragStartTarget || element;
- this._preventOutline = preventOutline;
+ return new Bounds(pixelCenter.subtract(halfSize), pixelCenter.add(halfSize));
},
- // @method enable()
- // Enables the dragging ability
- enable: function () {
- if (this._enabled) { return; }
+ // Private method to load tiles in the grid's active zoom level according to map bounds
+ _update: function (center) {
+ var map = this._map;
+ if (!map) { return; }
+ var zoom = this._clampZoom(map.getZoom());
- L.DomEvent.on(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this);
+ if (center === undefined) { center = map.getCenter(); }
+ if (this._tileZoom === undefined) { return; } // if out of minzoom/maxzoom
- this._enabled = true;
- },
+ var pixelBounds = this._getTiledPixelBounds(center),
+ tileRange = this._pxBoundsToTileRange(pixelBounds),
+ tileCenter = tileRange.getCenter(),
+ queue = [],
+ margin = this.options.keepBuffer,
+ noPruneRange = new Bounds(tileRange.getBottomLeft().subtract([margin, -margin]),
+ tileRange.getTopRight().add([margin, -margin]));
- // @method disable()
- // Disables the dragging ability
- disable: function () {
- if (!this._enabled) { return; }
+ // Sanity check: panic if the tile range contains Infinity somewhere.
+ if (!(isFinite(tileRange.min.x) &&
+ isFinite(tileRange.min.y) &&
+ isFinite(tileRange.max.x) &&
+ isFinite(tileRange.max.y))) { throw new Error('Attempted to load an infinite number of tiles'); }
- // If we're currently dragging this draggable,
- // disabling it counts as first ending the drag.
- if (L.Draggable._dragging === this) {
- this.finishDrag();
+ for (var key in this._tiles) {
+ var c = this._tiles[key].coords;
+ if (c.z !== this._tileZoom || !noPruneRange.contains(new Point(c.x, c.y))) {
+ this._tiles[key].current = false;
+ }
}
- L.DomEvent.off(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this);
+ // _update just loads more tiles. If the tile zoom level differs too much
+ // from the map's, let _setView reset levels and prune old tiles.
+ if (Math.abs(zoom - this._tileZoom) > 1) { this._setView(center, zoom); return; }
- this._enabled = false;
- this._moved = false;
- },
+ // create a queue of coordinates to load tiles from
+ for (var j = tileRange.min.y; j <= tileRange.max.y; j++) {
+ for (var i = tileRange.min.x; i <= tileRange.max.x; i++) {
+ var coords = new Point(i, j);
+ coords.z = this._tileZoom;
- _onDown: function (e) {
- // Ignore simulated events, since we handle both touch and
- // mouse explicitly; otherwise we risk getting duplicates of
- // touch events, see #4315.
- // Also ignore the event if disabled; this happens in IE11
- // under some circumstances, see #3666.
- if (e._simulated || !this._enabled) { return; }
+ if (!this._isValidTile(coords)) { continue; }
- this._moved = false;
+ var tile = this._tiles[this._tileCoordsToKey(coords)];
+ if (tile) {
+ tile.current = true;
+ } else {
+ queue.push(coords);
+ }
+ }
+ }
+
+ // sort tile queue to load tiles in order of their distance to center
+ queue.sort(function (a, b) {
+ return a.distanceTo(tileCenter) - b.distanceTo(tileCenter);
+ });
+
+ if (queue.length !== 0) {
+ // if it's the first batch of tiles to load
+ if (!this._loading) {
+ this._loading = true;
+ // @event loading: Event
+ // Fired when the grid layer starts loading tiles.
+ this.fire('loading');
+ }
- if (L.DomUtil.hasClass(this._element, 'leaflet-zoom-anim')) { return; }
+ // create DOM fragment to append tiles in one batch
+ var fragment = document.createDocumentFragment();
- if (L.Draggable._dragging || e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; }
- L.Draggable._dragging = this; // Prevent dragging multiple objects at once.
+ for (i = 0; i < queue.length; i++) {
+ this._addTile(queue[i], fragment);
+ }
- if (this._preventOutline) {
- L.DomUtil.preventOutline(this._element);
+ this._level.el.appendChild(fragment);
}
+ },
- L.DomUtil.disableImageDrag();
- L.DomUtil.disableTextSelection();
+ _isValidTile: function (coords) {
+ var crs = this._map.options.crs;
- if (this._moving) { return; }
+ if (!crs.infinite) {
+ // don't load tile if it's out of bounds and not wrapped
+ var bounds = this._globalTileRange;
+ if ((!crs.wrapLng && (coords.x < bounds.min.x || coords.x > bounds.max.x)) ||
+ (!crs.wrapLat && (coords.y < bounds.min.y || coords.y > bounds.max.y))) { return false; }
+ }
- // @event down: Event
- // Fired when a drag is about to start.
- this.fire('down');
+ if (!this.options.bounds) { return true; }
- var first = e.touches ? e.touches[0] : e;
+ // don't load tile if it doesn't intersect the bounds in options
+ var tileBounds = this._tileCoordsToBounds(coords);
+ return toLatLngBounds(this.options.bounds).overlaps(tileBounds);
+ },
- this._startPoint = new L.Point(first.clientX, first.clientY);
+ _keyToBounds: function (key) {
+ return this._tileCoordsToBounds(this._keyToTileCoords(key));
+ },
- L.DomEvent
- .on(document, L.Draggable.MOVE[e.type], this._onMove, this)
- .on(document, L.Draggable.END[e.type], this._onUp, this);
+ _tileCoordsToNwSe: function (coords) {
+ var map = this._map,
+ tileSize = this.getTileSize(),
+ nwPoint = coords.scaleBy(tileSize),
+ sePoint = nwPoint.add(tileSize),
+ nw = map.unproject(nwPoint, coords.z),
+ se = map.unproject(sePoint, coords.z);
+ return [nw, se];
},
- _onMove: function (e) {
- // Ignore simulated events, since we handle both touch and
- // mouse explicitly; otherwise we risk getting duplicates of
- // touch events, see #4315.
- // Also ignore the event if disabled; this happens in IE11
- // under some circumstances, see #3666.
- if (e._simulated || !this._enabled) { return; }
+ // converts tile coordinates to its geographical bounds
+ _tileCoordsToBounds: function (coords) {
+ var bp = this._tileCoordsToNwSe(coords),
+ bounds = new LatLngBounds(bp[0], bp[1]);
- if (e.touches && e.touches.length > 1) {
- this._moved = true;
- return;
+ if (!this.options.noWrap) {
+ bounds = this._map.wrapLatLngBounds(bounds);
}
+ return bounds;
+ },
+ // converts tile coordinates to key for the tile cache
+ _tileCoordsToKey: function (coords) {
+ return coords.x + ':' + coords.y + ':' + coords.z;
+ },
- var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e),
- newPoint = new L.Point(first.clientX, first.clientY),
- offset = newPoint.subtract(this._startPoint);
-
- if (!offset.x && !offset.y) { return; }
- if (Math.abs(offset.x) + Math.abs(offset.y) < this.options.clickTolerance) { return; }
-
- L.DomEvent.preventDefault(e);
+ // converts tile cache key to coordinates
+ _keyToTileCoords: function (key) {
+ var k = key.split(':'),
+ coords = new Point(+k[0], +k[1]);
+ coords.z = +k[2];
+ return coords;
+ },
- if (!this._moved) {
- // @event dragstart: Event
- // Fired when a drag starts
- this.fire('dragstart');
+ _removeTile: function (key) {
+ var tile = this._tiles[key];
+ if (!tile) { return; }
- this._moved = true;
- this._startPos = L.DomUtil.getPosition(this._element).subtract(offset);
+ remove(tile.el);
- L.DomUtil.addClass(document.body, 'leaflet-dragging');
+ delete this._tiles[key];
- this._lastTarget = e.target || e.srcElement;
- // IE and Edge do not give the <use> element, so fetch it
- // if necessary
- if ((window.SVGElementInstance) && (this._lastTarget instanceof SVGElementInstance)) {
- this._lastTarget = this._lastTarget.correspondingUseElement;
- }
- L.DomUtil.addClass(this._lastTarget, 'leaflet-drag-target');
- }
+ // @event tileunload: TileEvent
+ // Fired when a tile is removed (e.g. when a tile goes off the screen).
+ this.fire('tileunload', {
+ tile: tile.el,
+ coords: this._keyToTileCoords(key)
+ });
+ },
- this._newPos = this._startPos.add(offset);
- this._moving = true;
+ _initTile: function (tile) {
+ addClass(tile, 'leaflet-tile');
- L.Util.cancelAnimFrame(this._animRequest);
- this._lastEvent = e;
- this._animRequest = L.Util.requestAnimFrame(this._updatePosition, this, true);
- },
+ var tileSize = this.getTileSize();
+ tile.style.width = tileSize.x + 'px';
+ tile.style.height = tileSize.y + 'px';
- _updatePosition: function () {
- var e = {originalEvent: this._lastEvent};
+ tile.onselectstart = falseFn;
+ tile.onmousemove = falseFn;
- // @event predrag: Event
- // Fired continuously during dragging *before* each corresponding
- // update of the element's position.
- this.fire('predrag', e);
- L.DomUtil.setPosition(this._element, this._newPos);
+ // update opacity on tiles in IE7-8 because of filter inheritance problems
+ if (ielt9 && this.options.opacity < 1) {
+ setOpacity(tile, this.options.opacity);
+ }
- // @event drag: Event
- // Fired continuously during dragging.
- this.fire('drag', e);
+ // without this hack, tiles disappear after zoom on Chrome for Android
+ // https://github.com/Leaflet/Leaflet/issues/2078
+ if (android && !android23) {
+ tile.style.WebkitBackfaceVisibility = 'hidden';
+ }
},
- _onUp: function (e) {
- // Ignore simulated events, since we handle both touch and
- // mouse explicitly; otherwise we risk getting duplicates of
- // touch events, see #4315.
- // Also ignore the event if disabled; this happens in IE11
- // under some circumstances, see #3666.
- if (e._simulated || !this._enabled) { return; }
- this.finishDrag();
- },
+ _addTile: function (coords, container) {
+ var tilePos = this._getTilePos(coords),
+ key = this._tileCoordsToKey(coords);
- finishDrag: function () {
- L.DomUtil.removeClass(document.body, 'leaflet-dragging');
+ var tile = this.createTile(this._wrapCoords(coords), bind(this._tileReady, this, coords));
- if (this._lastTarget) {
- L.DomUtil.removeClass(this._lastTarget, 'leaflet-drag-target');
- this._lastTarget = null;
- }
+ this._initTile(tile);
- for (var i in L.Draggable.MOVE) {
- L.DomEvent
- .off(document, L.Draggable.MOVE[i], this._onMove, this)
- .off(document, L.Draggable.END[i], this._onUp, this);
+ // if createTile is defined with a second argument ("done" callback),
+ // we know that tile is async and will be ready later; otherwise
+ if (this.createTile.length < 2) {
+ // mark tile as ready, but delay one frame for opacity animation to happen
+ requestAnimFrame(bind(this._tileReady, this, coords, null, tile));
}
- L.DomUtil.enableImageDrag();
- L.DomUtil.enableTextSelection();
+ setPosition(tile, tilePos);
- if (this._moved && this._moving) {
- // ensure drag is not fired after dragend
- L.Util.cancelAnimFrame(this._animRequest);
+ // save tile in cache
+ this._tiles[key] = {
+ el: tile,
+ coords: coords,
+ current: true
+ };
- // @event dragend: DragEndEvent
- // Fired when the drag ends.
- this.fire('dragend', {
- distance: this._newPos.distanceTo(this._startPos)
+ container.appendChild(tile);
+ // @event tileloadstart: TileEvent
+ // Fired when a tile is requested and starts loading.
+ this.fire('tileloadstart', {
+ tile: tile,
+ coords: coords
+ });
+ },
+
+ _tileReady: function (coords, err, tile) {
+ if (err) {
+ // @event tileerror: TileErrorEvent
+ // Fired when there is an error loading a tile.
+ this.fire('tileerror', {
+ error: err,
+ tile: tile,
+ coords: coords
});
}
- this._moving = false;
- L.Draggable._dragging = false;
- }
+ var key = this._tileCoordsToKey(coords);
-});
+ tile = this._tiles[key];
+ if (!tile) { return; }
+ tile.loaded = +new Date();
+ if (this._map._fadeAnimated) {
+ setOpacity(tile.el, 0);
+ cancelAnimFrame(this._fadeFrame);
+ this._fadeFrame = requestAnimFrame(this._updateOpacity, this);
+ } else {
+ tile.active = true;
+ this._pruneTiles();
+ }
+ if (!err) {
+ addClass(tile.el, 'leaflet-tile-loaded');
-/*
- 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.
-*/
+ // @event tileload: TileEvent
+ // Fired when a tile loads.
+ this.fire('tileload', {
+ tile: tile.el,
+ coords: coords
+ });
+ }
-// @class Handler
-// @aka L.Handler
-// Abstract class for map interaction handlers
+ if (this._noTilesToLoad()) {
+ this._loading = false;
+ // @event load: Event
+ // Fired when the grid layer loaded all visible tiles.
+ this.fire('load');
-L.Handler = L.Class.extend({
- initialize: function (map) {
- this._map = map;
+ if (ielt9 || !this._map._fadeAnimated) {
+ requestAnimFrame(this._pruneTiles, this);
+ } else {
+ // Wait a bit more than 0.2 secs (the duration of the tile fade-in)
+ // to trigger a pruning.
+ setTimeout(bind(this._pruneTiles, this), 250);
+ }
+ }
},
- // @method enable(): this
- // Enables the handler
- enable: function () {
- if (this._enabled) { return this; }
-
- this._enabled = true;
- this.addHooks();
- return this;
+ _getTilePos: function (coords) {
+ return coords.scaleBy(this.getTileSize()).subtract(this._level.origin);
},
- // @method disable(): this
- // Disables the handler
- disable: function () {
- if (!this._enabled) { return this; }
+ _wrapCoords: function (coords) {
+ var newCoords = new Point(
+ this._wrapX ? wrapNum(coords.x, this._wrapX) : coords.x,
+ this._wrapY ? wrapNum(coords.y, this._wrapY) : coords.y);
+ newCoords.z = coords.z;
+ return newCoords;
+ },
- this._enabled = false;
- this.removeHooks();
- return this;
+ _pxBoundsToTileRange: function (bounds) {
+ var tileSize = this.getTileSize();
+ return new Bounds(
+ bounds.min.unscaleBy(tileSize).floor(),
+ bounds.max.unscaleBy(tileSize).ceil().subtract([1, 1]));
},
- // @method enabled(): Boolean
- // Returns `true` if the handler is enabled
- enabled: function () {
- return !!this._enabled;
+ _noTilesToLoad: function () {
+ for (var key in this._tiles) {
+ if (!this._tiles[key].loaded) { return false; }
+ }
+ return true;
}
-
- // @section Extension methods
- // Classes inheriting from `Handler` must implement the two following methods:
- // @method addHooks()
- // Called when the handler is enabled, should add event hooks.
- // @method removeHooks()
- // Called when the handler is disabled, should remove the event hooks added previously.
});
+// @factory L.gridLayer(options?: GridLayer options)
+// Creates a new instance of GridLayer with the supplied options.
+function gridLayer(options) {
+ return new GridLayer(options);
+}
+/*
+ * @class TileLayer
+ * @inherits GridLayer
+ * @aka L.TileLayer
+ * Used to load and display tile layers on the map. Note that most tile servers require attribution, which you can set under `Layer`. Extends `GridLayer`.
+ *
+ * @example
+ *
+ * ```js
+ * L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png?{foo}', {foo: 'bar', attribution: 'Map data © <a href="https://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="https://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>'}).addTo(map);
+ * ```
+ *
+ * @section URL template
+ * @example
+ *
+ * A string of the following form:
+ *
+ * ```
+ * 'http://{s}.somedomain.com/blabla/{z}/{x}/{y}{r}.png'
+ * ```
+ *
+ * `{s}` means one of the available subdomains (used sequentially to help with browser parallel requests per domain limitation; subdomain values are specified in options; `a`, `b` or `c` by default, can be omitted), `{z}` — zoom level, `{x}` and `{y}` — tile coordinates. `{r}` can be used to add "@2x" to the URL to load retina tiles.
+ *
+ * You can use custom keys in the template, which will be [evaluated](#util-template) from TileLayer options, like this:
+ *
+ * ```
+ * L.tileLayer('http://{s}.somedomain.com/{foo}/{z}/{x}/{y}.png', {foo: 'bar'});
+ * ```
+ */
-/*
- * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default.
- */
-
-// @namespace Map
-// @section Interaction Options
-L.Map.mergeOptions({
- // @option dragging: Boolean = true
- // Whether the map be draggable with mouse/touch or not.
- dragging: true,
-
- // @section Panning Inertia Options
- // @option inertia: Boolean = *
- // If enabled, panning of the map will have an inertia effect where
- // the map builds momentum while dragging and continues moving in
- // the same direction for some time. Feels especially nice on touch
- // devices. Enabled by default unless running on old Android devices.
- inertia: !L.Browser.android23,
-
- // @option inertiaDeceleration: Number = 3000
- // The rate with which the inertial movement slows down, in pixels/second².
- inertiaDeceleration: 3400, // px/s^2
- // @option inertiaMaxSpeed: Number = Infinity
- // Max speed of the inertial movement, in pixels/second.
- inertiaMaxSpeed: Infinity, // px/s
+var TileLayer = GridLayer.extend({
- // @option easeLinearity: Number = 0.2
- easeLinearity: 0.2,
+ // @section
+ // @aka TileLayer options
+ options: {
+ // @option minZoom: Number = 0
+ // The minimum zoom level down to which this layer will be displayed (inclusive).
+ minZoom: 0,
- // TODO refactor, move to CRS
- // @option worldCopyJump: Boolean = false
- // With this option enabled, the map tracks when you pan to another "copy"
- // of the world and seamlessly jumps to the original one so that all overlays
- // like markers and vector layers are still visible.
- worldCopyJump: false,
+ // @option maxZoom: Number = 18
+ // The maximum zoom level up to which this layer will be displayed (inclusive).
+ maxZoom: 18,
- // @option maxBoundsViscosity: Number = 0.0
- // If `maxBounds` is set, this option will control how solid the bounds
- // are when dragging the map around. The default value of `0.0` allows the
- // user to drag outside the bounds at normal speed, higher values will
- // slow down map dragging outside bounds, and `1.0` makes the bounds fully
- // solid, preventing the user from dragging outside the bounds.
- maxBoundsViscosity: 0.0
-});
+ // @option subdomains: String|String[] = 'abc'
+ // Subdomains of the tile service. Can be passed in the form of one string (where each letter is a subdomain name) or an array of strings.
+ subdomains: 'abc',
-L.Map.Drag = L.Handler.extend({
- addHooks: function () {
- if (!this._draggable) {
- var map = this._map;
+ // @option errorTileUrl: String = ''
+ // URL to the tile image to show in place of the tile that failed to load.
+ errorTileUrl: '',
- this._draggable = new L.Draggable(map._mapPane, map._container);
+ // @option zoomOffset: Number = 0
+ // The zoom number used in tile URLs will be offset with this value.
+ zoomOffset: 0,
- this._draggable.on({
- down: this._onDown,
- dragstart: this._onDragStart,
- drag: this._onDrag,
- dragend: this._onDragEnd
- }, this);
+ // @option tms: Boolean = false
+ // If `true`, inverses Y axis numbering for tiles (turn this on for [TMS](https://en.wikipedia.org/wiki/Tile_Map_Service) services).
+ tms: false,
- this._draggable.on('predrag', this._onPreDragLimit, this);
- if (map.options.worldCopyJump) {
- this._draggable.on('predrag', this._onPreDragWrap, this);
- map.on('zoomend', this._onZoomEnd, this);
+ // @option zoomReverse: Boolean = false
+ // If set to true, the zoom number used in tile URLs will be reversed (`maxZoom - zoom` instead of `zoom`)
+ zoomReverse: false,
- map.whenReady(this._onZoomEnd, this);
- }
- }
- L.DomUtil.addClass(this._map._container, 'leaflet-grab leaflet-touch-drag');
- this._draggable.enable();
- this._positions = [];
- this._times = [];
- },
+ // @option detectRetina: Boolean = false
+ // If `true` and user is on a retina display, it will request four tiles of half the specified size and a bigger zoom level in place of one to utilize the high resolution.
+ detectRetina: false,
- removeHooks: function () {
- L.DomUtil.removeClass(this._map._container, 'leaflet-grab');
- L.DomUtil.removeClass(this._map._container, 'leaflet-touch-drag');
- this._draggable.disable();
+ // @option crossOrigin: Boolean|String = false
+ // Whether the crossOrigin attribute will be added to the tiles.
+ // If a String is provided, all tiles will have their crossOrigin attribute set to the String provided. This is needed if you want to access tile pixel data.
+ // Refer to [CORS Settings](https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_settings_attributes) for valid String values.
+ crossOrigin: false
},
- moved: function () {
- return this._draggable && this._draggable._moved;
- },
+ initialize: function (url, options) {
- moving: function () {
- return this._draggable && this._draggable._moving;
- },
+ this._url = url;
- _onDown: function () {
- this._map._stop();
- },
+ options = setOptions(this, options);
- _onDragStart: function () {
- var map = this._map;
+ // detecting retina displays, adjusting tileSize and zoom levels
+ if (options.detectRetina && retina && options.maxZoom > 0) {
- if (this._map.options.maxBounds && this._map.options.maxBoundsViscosity) {
- var bounds = L.latLngBounds(this._map.options.maxBounds);
+ options.tileSize = Math.floor(options.tileSize / 2);
- this._offsetLimit = L.bounds(
- this._map.latLngToContainerPoint(bounds.getNorthWest()).multiplyBy(-1),
- this._map.latLngToContainerPoint(bounds.getSouthEast()).multiplyBy(-1)
- .add(this._map.getSize()));
+ if (!options.zoomReverse) {
+ options.zoomOffset++;
+ options.maxZoom--;
+ } else {
+ options.zoomOffset--;
+ options.minZoom++;
+ }
- this._viscosity = Math.min(1.0, Math.max(0.0, this._map.options.maxBoundsViscosity));
- } else {
- this._offsetLimit = null;
+ options.minZoom = Math.max(0, options.minZoom);
}
- map
- .fire('movestart')
- .fire('dragstart');
+ if (typeof options.subdomains === 'string') {
+ options.subdomains = options.subdomains.split('');
+ }
- if (map.options.inertia) {
- this._positions = [];
- this._times = [];
+ // for https://github.com/Leaflet/Leaflet/issues/137
+ if (!android) {
+ this.on('tileunload', this._onTileRemove);
}
},
- _onDrag: function (e) {
- if (this._map.options.inertia) {
- var time = this._lastTime = +new Date(),
- pos = this._lastPos = this._draggable._absPos || this._draggable._newPos;
+ // @method setUrl(url: String, noRedraw?: Boolean): this
+ // Updates the layer's URL template and redraws it (unless `noRedraw` is set to `true`).
+ // If the URL does not change, the layer will not be redrawn unless
+ // the noRedraw parameter is set to false.
+ setUrl: function (url, noRedraw) {
+ if (this._url === url && noRedraw === undefined) {
+ noRedraw = true;
+ }
- this._positions.push(pos);
- this._times.push(time);
+ this._url = url;
- if (time - this._times[0] > 50) {
- this._positions.shift();
- this._times.shift();
- }
+ if (!noRedraw) {
+ this.redraw();
}
-
- this._map
- .fire('move', e)
- .fire('drag', e);
+ return this;
},
- _onZoomEnd: function () {
- var pxCenter = this._map.getSize().divideBy(2),
- pxWorldCenter = this._map.latLngToLayerPoint([0, 0]);
+ // @method createTile(coords: Object, done?: Function): HTMLElement
+ // Called only internally, overrides GridLayer's [`createTile()`](#gridlayer-createtile)
+ // to return an `<img>` HTML element with the appropriate image URL given `coords`. The `done`
+ // callback is called when the tile has been loaded.
+ createTile: function (coords, done) {
+ var tile = document.createElement('img');
- this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;
- this._worldWidth = this._map.getPixelWorldBounds().getSize().x;
- },
+ on(tile, 'load', bind(this._tileOnLoad, this, done, tile));
+ on(tile, 'error', bind(this._tileOnError, this, done, tile));
- _viscousLimit: function (value, threshold) {
- return value - (value - threshold) * this._viscosity;
- },
+ if (this.options.crossOrigin || this.options.crossOrigin === '') {
+ tile.crossOrigin = this.options.crossOrigin === true ? '' : this.options.crossOrigin;
+ }
- _onPreDragLimit: function () {
- if (!this._viscosity || !this._offsetLimit) { return; }
+ /*
+ Alt tag is set to empty string to keep screen readers from reading URL and for compliance reasons
+ http://www.w3.org/TR/WCAG20-TECHS/H67
+ */
+ tile.alt = '';
- var offset = this._draggable._newPos.subtract(this._draggable._startPos);
+ /*
+ Set role="presentation" to force screen readers to ignore this
+ https://www.w3.org/TR/wai-aria/roles#textalternativecomputation
+ */
+ tile.setAttribute('role', 'presentation');
- var limit = this._offsetLimit;
- if (offset.x < limit.min.x) { offset.x = this._viscousLimit(offset.x, limit.min.x); }
- if (offset.y < limit.min.y) { offset.y = this._viscousLimit(offset.y, limit.min.y); }
- if (offset.x > limit.max.x) { offset.x = this._viscousLimit(offset.x, limit.max.x); }
- if (offset.y > limit.max.y) { offset.y = this._viscousLimit(offset.y, limit.max.y); }
+ tile.src = this.getTileUrl(coords);
- this._draggable._newPos = this._draggable._startPos.add(offset);
+ return tile;
},
- _onPreDragWrap: 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;
+ // @section Extension methods
+ // @uninheritable
+ // Layers extending `TileLayer` might reimplement the following method.
+ // @method getTileUrl(coords: Object): String
+ // Called only internally, returns the URL for a tile given its coordinates.
+ // Classes extending `TileLayer` can override this function to provide custom tile URL naming schemes.
+ getTileUrl: function (coords) {
+ var data = {
+ r: retina ? '@2x' : '',
+ s: this._getSubdomain(coords),
+ x: coords.x,
+ y: coords.y,
+ z: this._getZoomForUrl()
+ };
+ if (this._map && !this._map.options.crs.infinite) {
+ var invertedY = this._globalTileRange.max.y - coords.y;
+ if (this.options.tms) {
+ data['y'] = invertedY;
+ }
+ data['-y'] = invertedY;
+ }
- this._draggable._absPos = this._draggable._newPos.clone();
- this._draggable._newPos.x = newX;
+ return template(this._url, extend(data, this.options));
},
- _onDragEnd: function (e) {
- var map = this._map,
- options = map.options,
-
- noInertia = !options.inertia || this._times.length < 2;
-
- map.fire('dragend', e);
-
- if (noInertia) {
- map.fire('moveend');
-
+ _tileOnLoad: function (done, tile) {
+ // For https://github.com/Leaflet/Leaflet/issues/3332
+ if (ielt9) {
+ setTimeout(bind(done, this, null, tile), 0);
} else {
+ done(null, tile);
+ }
+ },
- var direction = this._lastPos.subtract(this._positions[0]),
- duration = (this._lastTime - this._times[0]) / 1000,
- ease = options.easeLinearity,
-
- speedVector = direction.multiplyBy(ease / duration),
- speed = speedVector.distanceTo([0, 0]),
-
- limitedSpeed = Math.min(options.inertiaMaxSpeed, speed),
- limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed),
-
- decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease),
- offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round();
+ _tileOnError: function (done, tile, e) {
+ var errorUrl = this.options.errorTileUrl;
+ if (errorUrl && tile.getAttribute('src') !== errorUrl) {
+ tile.src = errorUrl;
+ }
+ done(e, tile);
+ },
- if (!offset.x && !offset.y) {
- map.fire('moveend');
+ _onTileRemove: function (e) {
+ e.tile.onload = null;
+ },
- } else {
- offset = map._limitOffset(offset, map.options.maxBounds);
+ _getZoomForUrl: function () {
+ var zoom = this._tileZoom,
+ maxZoom = this.options.maxZoom,
+ zoomReverse = this.options.zoomReverse,
+ zoomOffset = this.options.zoomOffset;
- L.Util.requestAnimFrame(function () {
- map.panBy(offset, {
- duration: decelerationDuration,
- easeLinearity: ease,
- noMoveStart: true,
- animate: true
- });
- });
- }
+ if (zoomReverse) {
+ zoom = maxZoom - zoom;
}
- }
-});
-// @section Handlers
-// @property dragging: Handler
-// Map dragging handler (by both mouse and touch).
-L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag);
+ return zoom + zoomOffset;
+ },
+ _getSubdomain: function (tilePoint) {
+ var index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length;
+ return this.options.subdomains[index];
+ },
+ // stops loading all tiles in the background layer
+ _abortLoading: function () {
+ var i, tile;
+ for (i in this._tiles) {
+ if (this._tiles[i].coords.z !== this._tileZoom) {
+ tile = this._tiles[i].el;
-/*
- * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default.
- */
+ tile.onload = falseFn;
+ tile.onerror = falseFn;
-// @namespace Map
-// @section Interaction Options
+ if (!tile.complete) {
+ tile.src = emptyImageUrl;
+ remove(tile);
+ delete this._tiles[i];
+ }
+ }
+ }
+ },
-L.Map.mergeOptions({
- // @option doubleClickZoom: Boolean|String = true
- // Whether the map can be zoomed in by double clicking on it and
- // zoomed out by double clicking while holding shift. If passed
- // `'center'`, double-click zoom will zoom to the center of the
- // view regardless of where the mouse was.
- doubleClickZoom: true
-});
+ _removeTile: function (key) {
+ var tile = this._tiles[key];
+ if (!tile) { return; }
-L.Map.DoubleClickZoom = L.Handler.extend({
- addHooks: function () {
- this._map.on('dblclick', this._onDoubleClick, this);
- },
+ // Cancels any pending http requests associated with the tile
+ // unless we're on Android's stock browser,
+ // see https://github.com/Leaflet/Leaflet/issues/137
+ if (!androidStock) {
+ tile.el.setAttribute('src', emptyImageUrl);
+ }
- removeHooks: function () {
- this._map.off('dblclick', this._onDoubleClick, this);
+ return GridLayer.prototype._removeTile.call(this, key);
},
- _onDoubleClick: function (e) {
- var map = this._map,
- oldZoom = map.getZoom(),
- delta = map.options.zoomDelta,
- zoom = e.originalEvent.shiftKey ? oldZoom - delta : oldZoom + delta;
-
- if (map.options.doubleClickZoom === 'center') {
- map.setZoom(zoom);
- } else {
- map.setZoomAround(e.containerPoint, zoom);
+ _tileReady: function (coords, err, tile) {
+ if (!this._map || (tile && tile.getAttribute('src') === emptyImageUrl)) {
+ return;
}
+
+ return GridLayer.prototype._tileReady.call(this, coords, err, tile);
}
});
-// @section Handlers
-//
-// Map properties include interaction handlers that allow you to control
-// interaction behavior in runtime, enabling or disabling certain features such
-// as dragging or touch zoom (see `Handler` methods). For example:
-//
-// ```js
-// map.doubleClickZoom.disable();
-// ```
-//
-// @property doubleClickZoom: Handler
-// Double click zoom handler.
-L.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom);
+// @factory L.tilelayer(urlTemplate: String, options?: TileLayer options)
+// Instantiates a tile layer object given a `URL template` and optionally an options object.
+function tileLayer(url, options) {
+ return new TileLayer(url, options);
+}
/*
- * L.Handler.ScrollWheelZoom is used by L.Map to enable mouse scroll wheel zoom on the map.
+ * @class TileLayer.WMS
+ * @inherits TileLayer
+ * @aka L.TileLayer.WMS
+ * Used to display [WMS](https://en.wikipedia.org/wiki/Web_Map_Service) services as tile layers on the map. Extends `TileLayer`.
+ *
+ * @example
+ *
+ * ```js
+ * var nexrad = L.tileLayer.wms("http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r.cgi", {
+ * layers: 'nexrad-n0r-900913',
+ * format: 'image/png',
+ * transparent: true,
+ * attribution: "Weather data © 2012 IEM Nexrad"
+ * });
+ * ```
*/
-// @namespace Map
-// @section Interaction Options
-L.Map.mergeOptions({
- // @section Mousewheel options
- // @option scrollWheelZoom: Boolean|String = true
- // Whether the map can be zoomed by using the mouse wheel. If passed `'center'`,
- // it will zoom to the center of the view regardless of where the mouse was.
- scrollWheelZoom: true,
+var TileLayerWMS = TileLayer.extend({
- // @option wheelDebounceTime: Number = 40
- // Limits the rate at which a wheel can fire (in milliseconds). By default
- // user can't zoom via wheel more often than once per 40 ms.
- wheelDebounceTime: 40,
+ // @section
+ // @aka TileLayer.WMS options
+ // If any custom options not documented here are used, they will be sent to the
+ // WMS server as extra parameters in each request URL. This can be useful for
+ // [non-standard vendor WMS parameters](http://docs.geoserver.org/stable/en/user/services/wms/vendor.html).
+ defaultWmsParams: {
+ service: 'WMS',
+ request: 'GetMap',
- // @option wheelPxPerZoomLevel: Number = 60
- // How many scroll pixels (as reported by [L.DomEvent.getWheelDelta](#domevent-getwheeldelta))
- // mean a change of one full zoom level. Smaller values will make wheel-zooming
- // faster (and vice versa).
- wheelPxPerZoomLevel: 60
-});
+ // @option layers: String = ''
+ // **(required)** Comma-separated list of WMS layers to show.
+ layers: '',
-L.Map.ScrollWheelZoom = L.Handler.extend({
- addHooks: function () {
- L.DomEvent.on(this._map._container, 'mousewheel', this._onWheelScroll, this);
+ // @option styles: String = ''
+ // Comma-separated list of WMS styles.
+ styles: '',
- this._delta = 0;
+ // @option format: String = 'image/jpeg'
+ // WMS image format (use `'image/png'` for layers with transparency).
+ format: 'image/jpeg',
+
+ // @option transparent: Boolean = false
+ // If `true`, the WMS service will return images with transparency.
+ transparent: false,
+
+ // @option version: String = '1.1.1'
+ // Version of the WMS service to use
+ version: '1.1.1'
},
- removeHooks: function () {
- L.DomEvent.off(this._map._container, 'mousewheel', this._onWheelScroll, this);
+ options: {
+ // @option crs: CRS = null
+ // Coordinate Reference System to use for the WMS requests, defaults to
+ // map CRS. Don't change this if you're not sure what it means.
+ crs: null,
+
+ // @option uppercase: Boolean = false
+ // If `true`, WMS request parameter keys will be uppercase.
+ uppercase: false
},
- _onWheelScroll: function (e) {
- var delta = L.DomEvent.getWheelDelta(e);
+ initialize: function (url, options) {
- var debounce = this._map.options.wheelDebounceTime;
+ this._url = url;
- this._delta += delta;
- this._lastMousePos = this._map.mouseEventToContainerPoint(e);
+ var wmsParams = extend({}, this.defaultWmsParams);
- if (!this._startTime) {
- this._startTime = +new Date();
+ // all keys that are not TileLayer options go to WMS params
+ for (var i in options) {
+ if (!(i in this.options)) {
+ wmsParams[i] = options[i];
+ }
}
- var left = Math.max(debounce - (+new Date() - this._startTime), 0);
+ options = setOptions(this, options);
- clearTimeout(this._timer);
- this._timer = setTimeout(L.bind(this._performZoom, this), left);
+ var realRetina = options.detectRetina && retina ? 2 : 1;
+ var tileSize = this.getTileSize();
+ wmsParams.width = tileSize.x * realRetina;
+ wmsParams.height = tileSize.y * realRetina;
- L.DomEvent.stop(e);
+ this.wmsParams = wmsParams;
},
- _performZoom: function () {
- var map = this._map,
- zoom = map.getZoom(),
- snap = this._map.options.zoomSnap || 0;
+ onAdd: function (map) {
- map._stop(); // stop panning and fly animations if any
+ this._crs = this.options.crs || map.options.crs;
+ this._wmsVersion = parseFloat(this.wmsParams.version);
- // map the delta with a sigmoid function to -4..4 range leaning on -1..1
- var d2 = this._delta / (this._map.options.wheelPxPerZoomLevel * 4),
- d3 = 4 * Math.log(2 / (1 + Math.exp(-Math.abs(d2)))) / Math.LN2,
- d4 = snap ? Math.ceil(d3 / snap) * snap : d3,
- delta = map._limitZoom(zoom + (this._delta > 0 ? d4 : -d4)) - zoom;
+ var projectionKey = this._wmsVersion >= 1.3 ? 'crs' : 'srs';
+ this.wmsParams[projectionKey] = this._crs.code;
- this._delta = 0;
- this._startTime = null;
+ TileLayer.prototype.onAdd.call(this, map);
+ },
- if (!delta) { return; }
+ getTileUrl: function (coords) {
- if (map.options.scrollWheelZoom === 'center') {
- map.setZoom(zoom + delta);
- } else {
- map.setZoomAround(this._lastMousePos, zoom + delta);
+ var tileBounds = this._tileCoordsToNwSe(coords),
+ crs = this._crs,
+ bounds = toBounds(crs.project(tileBounds[0]), crs.project(tileBounds[1])),
+ min = bounds.min,
+ max = bounds.max,
+ bbox = (this._wmsVersion >= 1.3 && this._crs === EPSG4326 ?
+ [min.y, min.x, max.y, max.x] :
+ [min.x, min.y, max.x, max.y]).join(','),
+ url = TileLayer.prototype.getTileUrl.call(this, coords);
+ return url +
+ getParamString(this.wmsParams, url, this.options.uppercase) +
+ (this.options.uppercase ? '&BBOX=' : '&bbox=') + bbox;
+ },
+
+ // @method setParams(params: Object, noRedraw?: Boolean): this
+ // Merges an object with the new parameters and re-requests tiles on the current screen (unless `noRedraw` was set to true).
+ setParams: function (params, noRedraw) {
+
+ extend(this.wmsParams, params);
+
+ if (!noRedraw) {
+ this.redraw();
}
+
+ return this;
}
});
-// @section Handlers
-// @property scrollWheelZoom: Handler
-// Scroll wheel zoom handler.
-L.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom);
+// @factory L.tileLayer.wms(baseUrl: String, options: TileLayer.WMS options)
+// Instantiates a WMS tile layer object given a base URL of the WMS service and a WMS parameters/options object.
+function tileLayerWMS(url, options) {
+ return new TileLayerWMS(url, options);
+}
+TileLayer.WMS = TileLayerWMS;
+tileLayer.wms = tileLayerWMS;
/*
- * Extends the event handling code with double tap support for mobile browsers.
+ * @class Renderer
+ * @inherits Layer
+ * @aka L.Renderer
+ *
+ * Base class for vector renderer implementations (`SVG`, `Canvas`). Handles the
+ * DOM container of the renderer, its bounds, and its zoom animation.
+ *
+ * A `Renderer` works as an implicit layer group for all `Path`s - the renderer
+ * itself can be added or removed to the map. All paths use a renderer, which can
+ * be implicit (the map will decide the type of renderer and use it automatically)
+ * or explicit (using the [`renderer`](#path-renderer) option of the path).
+ *
+ * Do not use this class directly, use `SVG` and `Canvas` instead.
+ *
+ * @event update: Event
+ * Fired when the renderer updates its bounds, center and zoom, for example when
+ * its map has moved
*/
-L.extend(L.DomEvent, {
+var Renderer = Layer.extend({
+
+ // @section
+ // @aka Renderer options
+ options: {
+ // @option padding: Number = 0.1
+ // How much to extend the clip area around the map view (relative to its size)
+ // e.g. 0.1 would be 10% of map view in each direction
+ padding: 0.1,
- _touchstart: L.Browser.msPointer ? 'MSPointerDown' : L.Browser.pointer ? 'pointerdown' : 'touchstart',
- _touchend: L.Browser.msPointer ? 'MSPointerUp' : L.Browser.pointer ? 'pointerup' : 'touchend',
+ // @option tolerance: Number = 0
+ // How much to extend click tolerance round a path/object on the map
+ tolerance : 0
+ },
- // inspired by Zepto touch code by Thomas Fuchs
- addDoubleTapListener: function (obj, handler, id) {
- var last, touch,
- doubleTap = false,
- delay = 250;
+ initialize: function (options) {
+ setOptions(this, options);
+ stamp(this);
+ this._layers = this._layers || {};
+ },
- function onTouchStart(e) {
- var count;
+ onAdd: function () {
+ if (!this._container) {
+ this._initContainer(); // defined by renderer implementations
- if (L.Browser.pointer) {
- if ((!L.Browser.edge) || e.pointerType === 'mouse') { return; }
- count = L.DomEvent._pointersCount;
- } else {
- count = e.touches.length;
+ if (this._zoomAnimated) {
+ addClass(this._container, 'leaflet-zoom-animated');
}
+ }
- if (count > 1) { return; }
+ this.getPane().appendChild(this._container);
+ this._update();
+ this.on('update', this._updatePaths, this);
+ },
- var now = Date.now(),
- delta = now - (last || now);
+ onRemove: function () {
+ this.off('update', this._updatePaths, this);
+ this._destroyContainer();
+ },
- touch = e.touches ? e.touches[0] : e;
- doubleTap = (delta > 0 && delta <= delay);
- last = now;
+ getEvents: function () {
+ var events = {
+ viewreset: this._reset,
+ zoom: this._onZoom,
+ moveend: this._update,
+ zoomend: this._onZoomEnd
+ };
+ if (this._zoomAnimated) {
+ events.zoomanim = this._onAnimZoom;
}
+ return events;
+ },
- function onTouchEnd(e) {
- if (doubleTap && !touch.cancelBubble) {
- if (L.Browser.pointer) {
- if ((!L.Browser.edge) || e.pointerType === 'mouse') { return; }
-
- // work around .type being readonly with MSPointer* events
- var newTouch = {},
- prop, i;
+ _onAnimZoom: function (ev) {
+ this._updateTransform(ev.center, ev.zoom);
+ },
- for (i in touch) {
- prop = touch[i];
- newTouch[i] = prop && prop.bind ? prop.bind(touch) : prop;
- }
- touch = newTouch;
- }
- touch.type = 'dblclick';
- handler(touch);
- last = null;
- }
- }
+ _onZoom: function () {
+ this._updateTransform(this._map.getCenter(), this._map.getZoom());
+ },
- var pre = '_leaflet_',
- touchstart = this._touchstart,
- touchend = this._touchend;
+ _updateTransform: function (center, zoom) {
+ var scale = this._map.getZoomScale(zoom, this._zoom),
+ position = getPosition(this._container),
+ viewHalf = this._map.getSize().multiplyBy(0.5 + this.options.padding),
+ currentCenterPoint = this._map.project(this._center, zoom),
+ destCenterPoint = this._map.project(center, zoom),
+ centerOffset = destCenterPoint.subtract(currentCenterPoint),
- obj[pre + touchstart + id] = onTouchStart;
- obj[pre + touchend + id] = onTouchEnd;
- obj[pre + 'dblclick' + id] = handler;
+ topLeftOffset = viewHalf.multiplyBy(-scale).add(position).add(viewHalf).subtract(centerOffset);
- obj.addEventListener(touchstart, onTouchStart, false);
- obj.addEventListener(touchend, onTouchEnd, false);
+ if (any3d) {
+ setTransform(this._container, topLeftOffset, scale);
+ } else {
+ setPosition(this._container, topLeftOffset);
+ }
+ },
- // On some platforms (notably, chrome<55 on win10 + touchscreen + mouse),
- // the browser doesn't fire touchend/pointerup events but does fire
- // native dblclicks. See #4127.
- // Edge 14 also fires native dblclicks, but only for pointerType mouse, see #5180.
- obj.addEventListener('dblclick', handler, false);
+ _reset: function () {
+ this._update();
+ this._updateTransform(this._center, this._zoom);
- return this;
+ for (var id in this._layers) {
+ this._layers[id]._reset();
+ }
},
- removeDoubleTapListener: function (obj, id) {
- var pre = '_leaflet_',
- touchstart = obj[pre + this._touchstart + id],
- touchend = obj[pre + this._touchend + id],
- dblclick = obj[pre + 'dblclick' + id];
+ _onZoomEnd: function () {
+ for (var id in this._layers) {
+ this._layers[id]._project();
+ }
+ },
- obj.removeEventListener(this._touchstart, touchstart, false);
- obj.removeEventListener(this._touchend, touchend, false);
- if (!L.Browser.edge) {
- obj.removeEventListener('dblclick', dblclick, false);
+ _updatePaths: function () {
+ for (var id in this._layers) {
+ this._layers[id]._update();
}
+ },
- return this;
- }
-});
+ _update: function () {
+ // Update pixel bounds of renderer container (for positioning/sizing/clipping later)
+ // Subclasses are responsible of firing the 'update' event.
+ var p = this.options.padding,
+ size = this._map.getSize(),
+ min = this._map.containerPointToLayerPoint(size.multiplyBy(-p)).round();
+ this._bounds = new Bounds(min, min.add(size.multiplyBy(1 + p * 2)).round());
+ this._center = this._map.getCenter();
+ this._zoom = this._map.getZoom();
+ }
+});
/*
- * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices.
+ * @class Canvas
+ * @inherits Renderer
+ * @aka L.Canvas
+ *
+ * Allows vector layers to be displayed with [`<canvas>`](https://developer.mozilla.org/docs/Web/API/Canvas_API).
+ * Inherits `Renderer`.
+ *
+ * Due to [technical limitations](http://caniuse.com/#search=canvas), Canvas is not
+ * available in all web browsers, notably IE8, and overlapping geometries might
+ * not display properly in some edge cases.
+ *
+ * @example
+ *
+ * Use Canvas by default for all paths in the map:
+ *
+ * ```js
+ * var map = L.map('map', {
+ * renderer: L.canvas()
+ * });
+ * ```
+ *
+ * Use a Canvas renderer with extra padding for specific vector geometries:
+ *
+ * ```js
+ * var map = L.map('map');
+ * var myRenderer = L.canvas({ padding: 0.5 });
+ * var line = L.polyline( coordinates, { renderer: myRenderer } );
+ * var circle = L.circle( center, { renderer: myRenderer } );
+ * ```
*/
-L.extend(L.DomEvent, {
-
- POINTER_DOWN: L.Browser.msPointer ? 'MSPointerDown' : 'pointerdown',
- POINTER_MOVE: L.Browser.msPointer ? 'MSPointerMove' : 'pointermove',
- POINTER_UP: L.Browser.msPointer ? 'MSPointerUp' : 'pointerup',
- POINTER_CANCEL: L.Browser.msPointer ? 'MSPointerCancel' : 'pointercancel',
- TAG_WHITE_LIST: ['INPUT', 'SELECT', 'OPTION'],
-
- _pointers: {},
- _pointersCount: 0,
+var Canvas = Renderer.extend({
+ getEvents: function () {
+ var events = Renderer.prototype.getEvents.call(this);
+ events.viewprereset = this._onViewPreReset;
+ return events;
+ },
- // Provides a touch events wrapper for (ms)pointer events.
- // ref http://www.w3.org/TR/pointerevents/ https://www.w3.org/Bugs/Public/show_bug.cgi?id=22890
+ _onViewPreReset: function () {
+ // Set a flag so that a viewprereset+moveend+viewreset only updates&redraws once
+ this._postponeUpdatePaths = true;
+ },
- addPointerListener: function (obj, type, handler, id) {
+ onAdd: function () {
+ Renderer.prototype.onAdd.call(this);
- if (type === 'touchstart') {
- this._addPointerStart(obj, handler, id);
+ // Redraw vectors since canvas is cleared upon removal,
+ // in case of removing the renderer itself from the map.
+ this._draw();
+ },
- } else if (type === 'touchmove') {
- this._addPointerMove(obj, handler, id);
+ _initContainer: function () {
+ var container = this._container = document.createElement('canvas');
- } else if (type === 'touchend') {
- this._addPointerEnd(obj, handler, id);
- }
+ on(container, 'mousemove', this._onMouseMove, this);
+ on(container, 'click dblclick mousedown mouseup contextmenu', this._onClick, this);
+ on(container, 'mouseout', this._handleMouseOut, this);
- return this;
+ this._ctx = container.getContext('2d');
},
- removePointerListener: function (obj, type, id) {
- var handler = obj['_leaflet_' + type + id];
-
- if (type === 'touchstart') {
- obj.removeEventListener(this.POINTER_DOWN, handler, false);
+ _destroyContainer: function () {
+ cancelAnimFrame(this._redrawRequest);
+ delete this._ctx;
+ remove(this._container);
+ off(this._container);
+ delete this._container;
+ },
- } else if (type === 'touchmove') {
- obj.removeEventListener(this.POINTER_MOVE, handler, false);
+ _updatePaths: function () {
+ if (this._postponeUpdatePaths) { return; }
- } else if (type === 'touchend') {
- obj.removeEventListener(this.POINTER_UP, handler, false);
- obj.removeEventListener(this.POINTER_CANCEL, handler, false);
+ var layer;
+ this._redrawBounds = null;
+ for (var id in this._layers) {
+ layer = this._layers[id];
+ layer._update();
}
-
- return this;
+ this._redraw();
},
- _addPointerStart: function (obj, handler, id) {
- var onDown = L.bind(function (e) {
- if (e.pointerType !== 'mouse' && e.MSPOINTER_TYPE_MOUSE && e.pointerType !== e.MSPOINTER_TYPE_MOUSE) {
- // In IE11, some touch events needs to fire for form controls, or
- // the controls will stop working. We keep a whitelist of tag names that
- // need these events. For other target tags, we prevent default on the event.
- if (this.TAG_WHITE_LIST.indexOf(e.target.tagName) < 0) {
- L.DomEvent.preventDefault(e);
- } else {
- return;
- }
- }
+ _update: function () {
+ if (this._map._animatingZoom && this._bounds) { return; }
- this._handlePointer(e, handler);
- }, this);
+ Renderer.prototype._update.call(this);
- obj['_leaflet_touchstart' + id] = onDown;
- obj.addEventListener(this.POINTER_DOWN, onDown, false);
+ var b = this._bounds,
+ container = this._container,
+ size = b.getSize(),
+ m = retina ? 2 : 1;
- // need to keep track of what pointers and how many are active to provide e.touches emulation
- if (!this._pointerDocListener) {
- var pointerUp = L.bind(this._globalPointerUp, this);
+ setPosition(container, b.min);
- // we listen documentElement as any drags that end by moving the touch off the screen get fired there
- document.documentElement.addEventListener(this.POINTER_DOWN, L.bind(this._globalPointerDown, this), true);
- document.documentElement.addEventListener(this.POINTER_MOVE, L.bind(this._globalPointerMove, this), true);
- document.documentElement.addEventListener(this.POINTER_UP, pointerUp, true);
- document.documentElement.addEventListener(this.POINTER_CANCEL, pointerUp, true);
+ // set canvas size (also clearing it); use double size on retina
+ container.width = m * size.x;
+ container.height = m * size.y;
+ container.style.width = size.x + 'px';
+ container.style.height = size.y + 'px';
- this._pointerDocListener = true;
+ if (retina) {
+ this._ctx.scale(2, 2);
}
- },
- _globalPointerDown: function (e) {
- this._pointers[e.pointerId] = e;
- this._pointersCount++;
+ // translate so we use the same path coordinates after canvas element moves
+ this._ctx.translate(-b.min.x, -b.min.y);
+
+ // Tell paths to redraw themselves
+ this.fire('update');
},
- _globalPointerMove: function (e) {
- if (this._pointers[e.pointerId]) {
- this._pointers[e.pointerId] = e;
+ _reset: function () {
+ Renderer.prototype._reset.call(this);
+
+ if (this._postponeUpdatePaths) {
+ this._postponeUpdatePaths = false;
+ this._updatePaths();
}
},
- _globalPointerUp: function (e) {
- delete this._pointers[e.pointerId];
- this._pointersCount--;
+ _initPath: function (layer) {
+ this._updateDashArray(layer);
+ this._layers[stamp(layer)] = layer;
+
+ var order = layer._order = {
+ layer: layer,
+ prev: this._drawLast,
+ next: null
+ };
+ if (this._drawLast) { this._drawLast.next = order; }
+ this._drawLast = order;
+ this._drawFirst = this._drawFirst || this._drawLast;
+ },
+
+ _addPath: function (layer) {
+ this._requestRedraw(layer);
},
- _handlePointer: function (e, handler) {
- e.touches = [];
- for (var i in this._pointers) {
- e.touches.push(this._pointers[i]);
+ _removePath: function (layer) {
+ var order = layer._order;
+ var next = order.next;
+ var prev = order.prev;
+
+ if (next) {
+ next.prev = prev;
+ } else {
+ this._drawLast = prev;
+ }
+ if (prev) {
+ prev.next = next;
+ } else {
+ this._drawFirst = next;
}
- e.changedTouches = [e];
- handler(e);
- },
+ delete layer._order;
- _addPointerMove: function (obj, handler, id) {
- var onMove = L.bind(function (e) {
- // don't fire touch moves when mouse isn't down
- if ((e.pointerType === e.MSPOINTER_TYPE_MOUSE || e.pointerType === 'mouse') && e.buttons === 0) { return; }
+ delete this._layers[stamp(layer)];
- this._handlePointer(e, handler);
- }, this);
+ this._requestRedraw(layer);
+ },
- obj['_leaflet_touchmove' + id] = onMove;
- obj.addEventListener(this.POINTER_MOVE, onMove, false);
+ _updatePath: function (layer) {
+ // Redraw the union of the layer's old pixel
+ // bounds and the new pixel bounds.
+ this._extendRedrawBounds(layer);
+ layer._project();
+ layer._update();
+ // The redraw will extend the redraw bounds
+ // with the new pixel bounds.
+ this._requestRedraw(layer);
},
- _addPointerEnd: function (obj, handler, id) {
- var onUp = L.bind(function (e) {
- this._handlePointer(e, handler);
- }, this);
+ _updateStyle: function (layer) {
+ this._updateDashArray(layer);
+ this._requestRedraw(layer);
+ },
- obj['_leaflet_touchend' + id] = onUp;
- obj.addEventListener(this.POINTER_UP, onUp, false);
- obj.addEventListener(this.POINTER_CANCEL, onUp, false);
- }
-});
+ _updateDashArray: function (layer) {
+ if (typeof layer.options.dashArray === 'string') {
+ var parts = layer.options.dashArray.split(/[, ]+/),
+ dashArray = [],
+ dashValue,
+ i;
+ for (i = 0; i < parts.length; i++) {
+ dashValue = Number(parts[i]);
+ // Ignore dash array containing invalid lengths
+ if (isNaN(dashValue)) { return; }
+ dashArray.push(dashValue);
+ }
+ layer.options._dashArray = dashArray;
+ } else {
+ layer.options._dashArray = layer.options.dashArray;
+ }
+ },
+
+ _requestRedraw: function (layer) {
+ if (!this._map) { return; }
+ this._extendRedrawBounds(layer);
+ this._redrawRequest = this._redrawRequest || requestAnimFrame(this._redraw, this);
+ },
+ _extendRedrawBounds: function (layer) {
+ if (layer._pxBounds) {
+ var padding = (layer.options.weight || 0) + 1;
+ this._redrawBounds = this._redrawBounds || new Bounds();
+ this._redrawBounds.extend(layer._pxBounds.min.subtract([padding, padding]));
+ this._redrawBounds.extend(layer._pxBounds.max.add([padding, padding]));
+ }
+ },
-/*
- * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers.
- */
+ _redraw: function () {
+ this._redrawRequest = null;
-// @namespace Map
-// @section Interaction Options
-L.Map.mergeOptions({
- // @section Touch interaction options
- // @option touchZoom: Boolean|String = *
- // Whether the map can be zoomed by touch-dragging with two fingers. If
- // passed `'center'`, it will zoom to the center of the view regardless of
- // where the touch events (fingers) were. Enabled for touch-capable web
- // browsers except for old Androids.
- touchZoom: L.Browser.touch && !L.Browser.android23,
+ if (this._redrawBounds) {
+ this._redrawBounds.min._floor();
+ this._redrawBounds.max._ceil();
+ }
- // @option bounceAtZoomLimits: Boolean = true
- // Set it to false if you don't want the map to zoom beyond min/max zoom
- // and then bounce back when pinch-zooming.
- bounceAtZoomLimits: true
-});
+ this._clear(); // clear layers in redraw bounds
+ this._draw(); // draw layers
-L.Map.TouchZoom = L.Handler.extend({
- addHooks: function () {
- L.DomUtil.addClass(this._map._container, 'leaflet-touch-zoom');
- L.DomEvent.on(this._map._container, 'touchstart', this._onTouchStart, this);
+ this._redrawBounds = null;
},
- removeHooks: function () {
- L.DomUtil.removeClass(this._map._container, 'leaflet-touch-zoom');
- L.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this);
+ _clear: function () {
+ var bounds = this._redrawBounds;
+ if (bounds) {
+ var size = bounds.getSize();
+ this._ctx.clearRect(bounds.min.x, bounds.min.y, size.x, size.y);
+ } else {
+ this._ctx.clearRect(0, 0, this._container.width, this._container.height);
+ }
},
- _onTouchStart: function (e) {
- var map = this._map;
- if (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; }
-
- var p1 = map.mouseEventToContainerPoint(e.touches[0]),
- p2 = map.mouseEventToContainerPoint(e.touches[1]);
-
- this._centerPoint = map.getSize()._divideBy(2);
- this._startLatLng = map.containerPointToLatLng(this._centerPoint);
- if (map.options.touchZoom !== 'center') {
- this._pinchStartLatLng = map.containerPointToLatLng(p1.add(p2)._divideBy(2));
+ _draw: function () {
+ var layer, bounds = this._redrawBounds;
+ this._ctx.save();
+ if (bounds) {
+ var size = bounds.getSize();
+ this._ctx.beginPath();
+ this._ctx.rect(bounds.min.x, bounds.min.y, size.x, size.y);
+ this._ctx.clip();
}
- this._startDist = p1.distanceTo(p2);
- this._startZoom = map.getZoom();
-
- this._moved = false;
- this._zooming = true;
+ this._drawing = true;
- map._stop();
+ for (var order = this._drawFirst; order; order = order.next) {
+ layer = order.layer;
+ if (!bounds || (layer._pxBounds && layer._pxBounds.intersects(bounds))) {
+ layer._updatePath();
+ }
+ }
- L.DomEvent
- .on(document, 'touchmove', this._onTouchMove, this)
- .on(document, 'touchend', this._onTouchEnd, this);
+ this._drawing = false;
- L.DomEvent.preventDefault(e);
+ this._ctx.restore(); // Restore state before clipping.
},
- _onTouchMove: function (e) {
- if (!e.touches || e.touches.length !== 2 || !this._zooming) { return; }
+ _updatePoly: function (layer, closed) {
+ if (!this._drawing) { return; }
- var map = this._map,
- p1 = map.mouseEventToContainerPoint(e.touches[0]),
- p2 = map.mouseEventToContainerPoint(e.touches[1]),
- scale = p1.distanceTo(p2) / this._startDist;
+ var i, j, len2, p,
+ parts = layer._parts,
+ len = parts.length,
+ ctx = this._ctx;
+ if (!len) { return; }
- this._zoom = map.getScaleZoom(scale, this._startZoom);
+ ctx.beginPath();
- if (!map.options.bounceAtZoomLimits && (
- (this._zoom < map.getMinZoom() && scale < 1) ||
- (this._zoom > map.getMaxZoom() && scale > 1))) {
- this._zoom = map._limitZoom(this._zoom);
+ for (i = 0; i < len; i++) {
+ for (j = 0, len2 = parts[i].length; j < len2; j++) {
+ p = parts[i][j];
+ ctx[j ? 'lineTo' : 'moveTo'](p.x, p.y);
+ }
+ if (closed) {
+ ctx.closePath();
+ }
}
- if (map.options.touchZoom === 'center') {
- this._center = this._startLatLng;
- if (scale === 1) { return; }
- } else {
- // Get delta from pinch to center, so centerLatLng is delta applied to initial pinchLatLng
- var delta = p1._add(p2)._divideBy(2)._subtract(this._centerPoint);
- if (scale === 1 && delta.x === 0 && delta.y === 0) { return; }
- this._center = map.unproject(map.project(this._pinchStartLatLng, this._zoom).subtract(delta), this._zoom);
- }
+ this._fillStroke(ctx, layer);
- if (!this._moved) {
- map._moveStart(true);
- this._moved = true;
- }
+ // TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature
+ },
- L.Util.cancelAnimFrame(this._animRequest);
+ _updateCircle: function (layer) {
- var moveFn = L.bind(map._move, map, this._center, this._zoom, {pinch: true, round: false});
- this._animRequest = L.Util.requestAnimFrame(moveFn, this, true);
+ if (!this._drawing || layer._empty()) { return; }
- L.DomEvent.preventDefault(e);
- },
+ var p = layer._point,
+ ctx = this._ctx,
+ r = Math.max(Math.round(layer._radius), 1),
+ s = (Math.max(Math.round(layer._radiusY), 1) || r) / r;
- _onTouchEnd: function () {
- if (!this._moved || !this._zooming) {
- this._zooming = false;
- return;
+ if (s !== 1) {
+ ctx.save();
+ ctx.scale(1, s);
}
- this._zooming = false;
- L.Util.cancelAnimFrame(this._animRequest);
-
- L.DomEvent
- .off(document, 'touchmove', this._onTouchMove)
- .off(document, 'touchend', this._onTouchEnd);
+ ctx.beginPath();
+ ctx.arc(p.x, p.y / s, r, 0, Math.PI * 2, false);
- // Pinch updates GridLayers' levels only when zoomSnap is off, so zoomSnap becomes noUpdate.
- if (this._map.options.zoomAnimation) {
- this._map._animateZoom(this._center, this._map._limitZoom(this._zoom), true, this._map.options.zoomSnap);
- } else {
- this._map._resetView(this._center, this._map._limitZoom(this._zoom));
+ if (s !== 1) {
+ ctx.restore();
}
- }
-});
-// @section Handlers
-// @property touchZoom: Handler
-// Touch zoom handler.
-L.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom);
+ this._fillStroke(ctx, layer);
+ },
+ _fillStroke: function (ctx, layer) {
+ var options = layer.options;
+ if (options.fill) {
+ ctx.globalAlpha = options.fillOpacity;
+ ctx.fillStyle = options.fillColor || options.color;
+ ctx.fill(options.fillRule || 'evenodd');
+ }
-/*
- * L.Map.Tap is used to enable mobile hacks like quick taps and long hold.
- */
+ if (options.stroke && options.weight !== 0) {
+ if (ctx.setLineDash) {
+ ctx.setLineDash(layer.options && layer.options._dashArray || []);
+ }
+ ctx.globalAlpha = options.opacity;
+ ctx.lineWidth = options.weight;
+ ctx.strokeStyle = options.color;
+ ctx.lineCap = options.lineCap;
+ ctx.lineJoin = options.lineJoin;
+ ctx.stroke();
+ }
+ },
-// @namespace Map
-// @section Interaction Options
-L.Map.mergeOptions({
- // @section Touch interaction options
- // @option tap: Boolean = true
- // Enables mobile hacks for supporting instant taps (fixing 200ms click
- // delay on iOS/Android) and touch holds (fired as `contextmenu` events).
- tap: true,
+ // Canvas obviously doesn't have mouse events for individual drawn objects,
+ // so we emulate that by calculating what's under the mouse on mousemove/click manually
- // @option tapTolerance: Number = 15
- // The max number of pixels a user can shift his finger during touch
- // for it to be considered a valid tap.
- tapTolerance: 15
-});
+ _onClick: function (e) {
+ var point = this._map.mouseEventToLayerPoint(e), layer, clickedLayer;
-L.Map.Tap = L.Handler.extend({
- addHooks: function () {
- L.DomEvent.on(this._map._container, 'touchstart', this._onDown, this);
+ for (var order = this._drawFirst; order; order = order.next) {
+ layer = order.layer;
+ if (layer.options.interactive && layer._containsPoint(point) && !this._map._draggableMoved(layer)) {
+ clickedLayer = layer;
+ }
+ }
+ if (clickedLayer) {
+ fakeStop(e);
+ this._fireEvent([clickedLayer], e);
+ }
},
- removeHooks: function () {
- L.DomEvent.off(this._map._container, 'touchstart', this._onDown, this);
- },
+ _onMouseMove: function (e) {
+ if (!this._map || this._map.dragging.moving() || this._map._animatingZoom) { return; }
- _onDown: function (e) {
- if (!e.touches) { return; }
+ var point = this._map.mouseEventToLayerPoint(e);
+ this._handleMouseHover(e, point);
+ },
- L.DomEvent.preventDefault(e);
- this._fireClick = true;
+ _handleMouseOut: function (e) {
+ var layer = this._hoveredLayer;
+ if (layer) {
+ // if we're leaving the layer, fire mouseout
+ removeClass(this._container, 'leaflet-interactive');
+ this._fireEvent([layer], e, 'mouseout');
+ this._hoveredLayer = null;
+ this._mouseHoverThrottled = false;
+ }
+ },
- // don't simulate click or track longpress if more than 1 touch
- if (e.touches.length > 1) {
- this._fireClick = false;
- clearTimeout(this._holdTimeout);
+ _handleMouseHover: function (e, point) {
+ if (this._mouseHoverThrottled) {
return;
}
- var first = e.touches[0],
- el = first.target;
-
- this._startPos = this._newPos = new L.Point(first.clientX, first.clientY);
+ var layer, candidateHoveredLayer;
- // if touching a link, highlight it
- if (el.tagName && el.tagName.toLowerCase() === 'a') {
- L.DomUtil.addClass(el, 'leaflet-active');
+ for (var order = this._drawFirst; order; order = order.next) {
+ layer = order.layer;
+ if (layer.options.interactive && layer._containsPoint(point)) {
+ candidateHoveredLayer = layer;
+ }
}
- // simulate long hold but setting a timeout
- this._holdTimeout = setTimeout(L.bind(function () {
- if (this._isTapValid()) {
- this._fireClick = false;
- this._onUp();
- this._simulateEvent('contextmenu', first);
+ if (candidateHoveredLayer !== this._hoveredLayer) {
+ this._handleMouseOut(e);
+
+ if (candidateHoveredLayer) {
+ addClass(this._container, 'leaflet-interactive'); // change cursor
+ this._fireEvent([candidateHoveredLayer], e, 'mouseover');
+ this._hoveredLayer = candidateHoveredLayer;
}
- }, this), 1000);
+ }
- this._simulateEvent('mousedown', first);
+ if (this._hoveredLayer) {
+ this._fireEvent([this._hoveredLayer], e);
+ }
- L.DomEvent.on(document, {
- touchmove: this._onMove,
- touchend: this._onUp
- }, this);
+ this._mouseHoverThrottled = true;
+ setTimeout(L.bind(function () {
+ this._mouseHoverThrottled = false;
+ }, this), 32);
},
- _onUp: function (e) {
- clearTimeout(this._holdTimeout);
+ _fireEvent: function (layers, e, type) {
+ this._map._fireDOMEvent(e, type || e.type, layers);
+ },
- L.DomEvent.off(document, {
- touchmove: this._onMove,
- touchend: this._onUp
- }, this);
+ _bringToFront: function (layer) {
+ var order = layer._order;
- if (this._fireClick && e && e.changedTouches) {
+ if (!order) { return; }
- var first = e.changedTouches[0],
- el = first.target;
+ var next = order.next;
+ var prev = order.prev;
- if (el && el.tagName && el.tagName.toLowerCase() === 'a') {
- L.DomUtil.removeClass(el, 'leaflet-active');
- }
+ if (next) {
+ next.prev = prev;
+ } else {
+ // Already last
+ return;
+ }
+ if (prev) {
+ prev.next = next;
+ } else if (next) {
+ // Update first entry unless this is the
+ // single entry
+ this._drawFirst = next;
+ }
- this._simulateEvent('mouseup', first);
+ order.prev = this._drawLast;
+ this._drawLast.next = order;
- // simulate click if the touch didn't move too much
- if (this._isTapValid()) {
- this._simulateEvent('click', first);
- }
- }
+ order.next = null;
+ this._drawLast = order;
+
+ this._requestRedraw(layer);
},
- _isTapValid: function () {
- return this._newPos.distanceTo(this._startPos) <= this._map.options.tapTolerance;
- },
+ _bringToBack: function (layer) {
+ var order = layer._order;
- _onMove: function (e) {
- var first = e.touches[0];
- this._newPos = new L.Point(first.clientX, first.clientY);
- this._simulateEvent('mousemove', first);
- },
+ if (!order) { return; }
- _simulateEvent: function (type, e) {
- var simulatedEvent = document.createEvent('MouseEvents');
+ var next = order.next;
+ var prev = order.prev;
- simulatedEvent._simulated = true;
- e.target._simulatedClick = true;
+ if (prev) {
+ prev.next = next;
+ } else {
+ // Already first
+ return;
+ }
+ if (next) {
+ next.prev = prev;
+ } else if (prev) {
+ // Update last entry unless this is the
+ // single entry
+ this._drawLast = prev;
+ }
- simulatedEvent.initMouseEvent(
- type, true, true, window, 1,
- e.screenX, e.screenY,
- e.clientX, e.clientY,
- false, false, false, false, 0, null);
+ order.prev = null;
- e.target.dispatchEvent(simulatedEvent);
+ order.next = this._drawFirst;
+ this._drawFirst.prev = order;
+ this._drawFirst = order;
+
+ this._requestRedraw(layer);
}
});
-// @section Handlers
-// @property tap: Handler
-// Mobile touch hacks (quick tap and touch hold) handler.
-if (L.Browser.touch && !L.Browser.pointer) {
- L.Map.addInitHook('addHandler', 'tap', L.Map.Tap);
+// @factory L.canvas(options?: Renderer options)
+// Creates a Canvas renderer with the given options.
+function canvas$1(options) {
+ return canvas ? new Canvas(options) : null;
}
+/*
+ * Thanks to Dmitry Baranovsky and his Raphael library for inspiration!
+ */
+
+
+var vmlCreate = (function () {
+ try {
+ document.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml');
+ return function (name) {
+ return document.createElement('<lvml:' + name + ' class="lvml">');
+ };
+ } catch (e) {
+ return function (name) {
+ return document.createElement('<' + name + ' xmlns="urn:schemas-microsoft.com:vml" class="lvml">');
+ };
+ }
+})();
/*
- * L.Handler.BoxZoom is used to add shift-drag zoom interaction to the map
- * (zoom to a selected bounding box), enabled by default.
+ * @class SVG
+ *
+ *
+ * VML was deprecated in 2012, which means VML functionality exists only for backwards compatibility
+ * with old versions of Internet Explorer.
*/
-// @namespace Map
-// @section Interaction Options
-L.Map.mergeOptions({
- // @option boxZoom: Boolean = true
- // Whether the map can be zoomed to a rectangular area specified by
- // dragging the mouse while pressing the shift key.
- boxZoom: true
-});
+// mixin to redefine some SVG methods to handle VML syntax which is similar but with some differences
+var vmlMixin = {
-L.Map.BoxZoom = L.Handler.extend({
- initialize: function (map) {
- this._map = map;
- this._container = map._container;
- this._pane = map._panes.overlayPane;
+ _initContainer: function () {
+ this._container = create$1('div', 'leaflet-vml-container');
},
- addHooks: function () {
- L.DomEvent.on(this._container, 'mousedown', this._onMouseDown, this);
+ _update: function () {
+ if (this._map._animatingZoom) { return; }
+ Renderer.prototype._update.call(this);
+ this.fire('update');
},
- removeHooks: function () {
- L.DomEvent.off(this._container, 'mousedown', this._onMouseDown, this);
- },
+ _initPath: function (layer) {
+ var container = layer._container = vmlCreate('shape');
- moved: function () {
- return this._moved;
+ addClass(container, 'leaflet-vml-shape ' + (this.options.className || ''));
+
+ container.coordsize = '1 1';
+
+ layer._path = vmlCreate('path');
+ container.appendChild(layer._path);
+
+ this._updateStyle(layer);
+ this._layers[stamp(layer)] = layer;
},
- _resetState: function () {
- this._moved = false;
+ _addPath: function (layer) {
+ var container = layer._container;
+ this._container.appendChild(container);
+
+ if (layer.options.interactive) {
+ layer.addInteractiveTarget(container);
+ }
},
- _onMouseDown: function (e) {
- if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; }
+ _removePath: function (layer) {
+ var container = layer._container;
+ remove(container);
+ layer.removeInteractiveTarget(container);
+ delete this._layers[stamp(layer)];
+ },
- this._resetState();
+ _updateStyle: function (layer) {
+ var stroke = layer._stroke,
+ fill = layer._fill,
+ options = layer.options,
+ container = layer._container;
- L.DomUtil.disableTextSelection();
- L.DomUtil.disableImageDrag();
+ container.stroked = !!options.stroke;
+ container.filled = !!options.fill;
- this._startPoint = this._map.mouseEventToContainerPoint(e);
+ if (options.stroke) {
+ if (!stroke) {
+ stroke = layer._stroke = vmlCreate('stroke');
+ }
+ container.appendChild(stroke);
+ stroke.weight = options.weight + 'px';
+ stroke.color = options.color;
+ stroke.opacity = options.opacity;
- L.DomEvent.on(document, {
- contextmenu: L.DomEvent.stop,
- mousemove: this._onMouseMove,
- mouseup: this._onMouseUp,
- keydown: this._onKeyDown
- }, this);
- },
+ if (options.dashArray) {
+ stroke.dashStyle = isArray(options.dashArray) ?
+ options.dashArray.join(' ') :
+ options.dashArray.replace(/( *, *)/g, ' ');
+ } else {
+ stroke.dashStyle = '';
+ }
+ stroke.endcap = options.lineCap.replace('butt', 'flat');
+ stroke.joinstyle = options.lineJoin;
- _onMouseMove: function (e) {
- if (!this._moved) {
- this._moved = true;
+ } else if (stroke) {
+ container.removeChild(stroke);
+ layer._stroke = null;
+ }
- this._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._container);
- L.DomUtil.addClass(this._container, 'leaflet-crosshair');
+ if (options.fill) {
+ if (!fill) {
+ fill = layer._fill = vmlCreate('fill');
+ }
+ container.appendChild(fill);
+ fill.color = options.fillColor || options.color;
+ fill.opacity = options.fillOpacity;
- this._map.fire('boxzoomstart');
+ } else if (fill) {
+ container.removeChild(fill);
+ layer._fill = null;
}
+ },
- this._point = this._map.mouseEventToContainerPoint(e);
+ _updateCircle: function (layer) {
+ var p = layer._point.round(),
+ r = Math.round(layer._radius),
+ r2 = Math.round(layer._radiusY || r);
- var bounds = new L.Bounds(this._point, this._startPoint),
- size = bounds.getSize();
+ this._setPath(layer, layer._empty() ? 'M0 0' :
+ 'AL ' + p.x + ',' + p.y + ' ' + r + ',' + r2 + ' 0,' + (65535 * 360));
+ },
- L.DomUtil.setPosition(this._box, bounds.min);
+ _setPath: function (layer, path) {
+ layer._path.v = path;
+ },
- this._box.style.width = size.x + 'px';
- this._box.style.height = size.y + 'px';
+ _bringToFront: function (layer) {
+ toFront(layer._container);
},
- _finish: function () {
- if (this._moved) {
- L.DomUtil.remove(this._box);
- L.DomUtil.removeClass(this._container, 'leaflet-crosshair');
- }
+ _bringToBack: function (layer) {
+ toBack(layer._container);
+ }
+};
- L.DomUtil.enableTextSelection();
- L.DomUtil.enableImageDrag();
+var create$2 = vml ? vmlCreate : svgCreate;
- L.DomEvent.off(document, {
- contextmenu: L.DomEvent.stop,
- mousemove: this._onMouseMove,
- mouseup: this._onMouseUp,
- keydown: this._onKeyDown
- }, this);
+/*
+ * @class SVG
+ * @inherits Renderer
+ * @aka L.SVG
+ *
+ * Allows vector layers to be displayed with [SVG](https://developer.mozilla.org/docs/Web/SVG).
+ * Inherits `Renderer`.
+ *
+ * Due to [technical limitations](http://caniuse.com/#search=svg), SVG is not
+ * available in all web browsers, notably Android 2.x and 3.x.
+ *
+ * Although SVG is not available on IE7 and IE8, these browsers support
+ * [VML](https://en.wikipedia.org/wiki/Vector_Markup_Language)
+ * (a now deprecated technology), and the SVG renderer will fall back to VML in
+ * this case.
+ *
+ * @example
+ *
+ * Use SVG by default for all paths in the map:
+ *
+ * ```js
+ * var map = L.map('map', {
+ * renderer: L.svg()
+ * });
+ * ```
+ *
+ * Use a SVG renderer with extra padding for specific vector geometries:
+ *
+ * ```js
+ * var map = L.map('map');
+ * var myRenderer = L.svg({ padding: 0.5 });
+ * var line = L.polyline( coordinates, { renderer: myRenderer } );
+ * var circle = L.circle( center, { renderer: myRenderer } );
+ * ```
+ */
+
+var SVG = Renderer.extend({
+
+ getEvents: function () {
+ var events = Renderer.prototype.getEvents.call(this);
+ events.zoomstart = this._onZoomStart;
+ return events;
},
- _onMouseUp: function (e) {
- if ((e.which !== 1) && (e.button !== 1)) { return; }
+ _initContainer: function () {
+ this._container = create$2('svg');
- this._finish();
+ // makes it possible to click through svg root; we'll reset it back in individual paths
+ this._container.setAttribute('pointer-events', 'none');
- if (!this._moved) { return; }
- // Postpone to next JS tick so internal click event handling
- // still see it as "moved".
- setTimeout(L.bind(this._resetState, this), 0);
+ this._rootGroup = create$2('g');
+ this._container.appendChild(this._rootGroup);
+ },
- var bounds = new L.LatLngBounds(
- this._map.containerPointToLatLng(this._startPoint),
- this._map.containerPointToLatLng(this._point));
+ _destroyContainer: function () {
+ remove(this._container);
+ off(this._container);
+ delete this._container;
+ delete this._rootGroup;
+ delete this._svgSize;
+ },
- this._map
- .fitBounds(bounds)
- .fire('boxzoomend', {boxZoomBounds: bounds});
+ _onZoomStart: function () {
+ // Drag-then-pinch interactions might mess up the center and zoom.
+ // In this case, the easiest way to prevent this is re-do the renderer
+ // bounds and padding when the zooming starts.
+ this._update();
},
- _onKeyDown: function (e) {
- if (e.keyCode === 27) {
- this._finish();
- }
- }
-});
+ _update: function () {
+ if (this._map._animatingZoom && this._bounds) { return; }
-// @section Handlers
-// @property boxZoom: Handler
-// Box (shift-drag with mouse) zoom handler.
-L.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom);
+ Renderer.prototype._update.call(this);
+
+ var b = this._bounds,
+ size = b.getSize(),
+ container = this._container;
+
+ // set size of svg-container if changed
+ if (!this._svgSize || !this._svgSize.equals(size)) {
+ this._svgSize = size;
+ container.setAttribute('width', size.x);
+ container.setAttribute('height', size.y);
+ }
+ // movement: update container viewBox so that we don't have to change coordinates of individual layers
+ setPosition(container, b.min);
+ container.setAttribute('viewBox', [b.min.x, b.min.y, size.x, size.y].join(' '));
+ this.fire('update');
+ },
-/*
- * L.Map.Keyboard is handling keyboard interaction with the map, enabled by default.
- */
+ // methods below are called by vector layers implementations
-// @namespace Map
-// @section Keyboard Navigation Options
-L.Map.mergeOptions({
- // @option keyboard: Boolean = true
- // Makes the map focusable and allows users to navigate the map with keyboard
- // arrows and `+`/`-` keys.
- keyboard: true,
+ _initPath: function (layer) {
+ var path = layer._path = create$2('path');
- // @option keyboardPanDelta: Number = 80
- // Amount of pixels to pan when pressing an arrow key.
- keyboardPanDelta: 80
-});
+ // @namespace Path
+ // @option className: String = null
+ // Custom class name set on an element. Only for SVG renderer.
+ if (layer.options.className) {
+ addClass(path, layer.options.className);
+ }
-L.Map.Keyboard = L.Handler.extend({
+ if (layer.options.interactive) {
+ addClass(path, 'leaflet-interactive');
+ }
- keyCodes: {
- left: [37],
- right: [39],
- down: [40],
- up: [38],
- zoomIn: [187, 107, 61, 171],
- zoomOut: [189, 109, 54, 173]
+ this._updateStyle(layer);
+ this._layers[stamp(layer)] = layer;
},
- initialize: function (map) {
- this._map = map;
+ _addPath: function (layer) {
+ if (!this._rootGroup) { this._initContainer(); }
+ this._rootGroup.appendChild(layer._path);
+ layer.addInteractiveTarget(layer._path);
+ },
- this._setPanDelta(map.options.keyboardPanDelta);
- this._setZoomDelta(map.options.zoomDelta);
+ _removePath: function (layer) {
+ remove(layer._path);
+ layer.removeInteractiveTarget(layer._path);
+ delete this._layers[stamp(layer)];
},
- addHooks: function () {
- var container = this._map._container;
+ _updatePath: function (layer) {
+ layer._project();
+ layer._update();
+ },
- // make the container focusable by tabbing
- if (container.tabIndex <= 0) {
- container.tabIndex = '0';
- }
+ _updateStyle: function (layer) {
+ var path = layer._path,
+ options = layer.options;
- L.DomEvent.on(container, {
- focus: this._onFocus,
- blur: this._onBlur,
- mousedown: this._onMouseDown
- }, this);
+ if (!path) { return; }
- this._map.on({
- focus: this._addHooks,
- blur: this._removeHooks
- }, this);
- },
+ if (options.stroke) {
+ path.setAttribute('stroke', options.color);
+ path.setAttribute('stroke-opacity', options.opacity);
+ path.setAttribute('stroke-width', options.weight);
+ path.setAttribute('stroke-linecap', options.lineCap);
+ path.setAttribute('stroke-linejoin', options.lineJoin);
- removeHooks: function () {
- this._removeHooks();
+ if (options.dashArray) {
+ path.setAttribute('stroke-dasharray', options.dashArray);
+ } else {
+ path.removeAttribute('stroke-dasharray');
+ }
- L.DomEvent.off(this._map._container, {
- focus: this._onFocus,
- blur: this._onBlur,
- mousedown: this._onMouseDown
- }, this);
+ if (options.dashOffset) {
+ path.setAttribute('stroke-dashoffset', options.dashOffset);
+ } else {
+ path.removeAttribute('stroke-dashoffset');
+ }
+ } else {
+ path.setAttribute('stroke', 'none');
+ }
- this._map.off({
- focus: this._addHooks,
- blur: this._removeHooks
- }, this);
+ if (options.fill) {
+ path.setAttribute('fill', options.fillColor || options.color);
+ path.setAttribute('fill-opacity', options.fillOpacity);
+ path.setAttribute('fill-rule', options.fillRule || 'evenodd');
+ } else {
+ path.setAttribute('fill', 'none');
+ }
},
- _onMouseDown: function () {
- if (this._focused) { return; }
+ _updatePoly: function (layer, closed) {
+ this._setPath(layer, pointsToPath(layer._parts, closed));
+ },
- var body = document.body,
- docEl = document.documentElement,
- top = body.scrollTop || docEl.scrollTop,
- left = body.scrollLeft || docEl.scrollLeft;
+ _updateCircle: function (layer) {
+ var p = layer._point,
+ r = Math.max(Math.round(layer._radius), 1),
+ r2 = Math.max(Math.round(layer._radiusY), 1) || r,
+ arc = 'a' + r + ',' + r2 + ' 0 1,0 ';
- this._map._container.focus();
+ // drawing a circle with two half-arcs
+ var d = layer._empty() ? 'M0 0' :
+ 'M' + (p.x - r) + ',' + p.y +
+ arc + (r * 2) + ',0 ' +
+ arc + (-r * 2) + ',0 ';
- window.scrollTo(left, top);
+ this._setPath(layer, d);
},
- _onFocus: function () {
- this._focused = true;
- this._map.fire('focus');
+ _setPath: function (layer, path) {
+ layer._path.setAttribute('d', path);
},
- _onBlur: function () {
- this._focused = false;
- this._map.fire('blur');
+ // SVG does not have the concept of zIndex so we resort to changing the DOM order of elements
+ _bringToFront: function (layer) {
+ toFront(layer._path);
},
- _setPanDelta: function (panDelta) {
- var keys = this._panKeys = {},
- codes = this.keyCodes,
- i, len;
+ _bringToBack: function (layer) {
+ toBack(layer._path);
+ }
+});
- for (i = 0, len = codes.left.length; i < len; i++) {
- keys[codes.left[i]] = [-1 * panDelta, 0];
- }
- for (i = 0, len = codes.right.length; i < len; i++) {
- keys[codes.right[i]] = [panDelta, 0];
- }
- for (i = 0, len = codes.down.length; i < len; i++) {
- keys[codes.down[i]] = [0, panDelta];
- }
- for (i = 0, len = codes.up.length; i < len; i++) {
- keys[codes.up[i]] = [0, -1 * panDelta];
- }
- },
+if (vml) {
+ SVG.include(vmlMixin);
+}
- _setZoomDelta: function (zoomDelta) {
- var keys = this._zoomKeys = {},
- codes = this.keyCodes,
- i, len;
+// @namespace SVG
+// @factory L.svg(options?: Renderer options)
+// Creates a SVG renderer with the given options.
+function svg$1(options) {
+ return svg || vml ? new SVG(options) : null;
+}
- for (i = 0, len = codes.zoomIn.length; i < len; i++) {
- keys[codes.zoomIn[i]] = zoomDelta;
+Map.include({
+ // @namespace Map; @method getRenderer(layer: Path): Renderer
+ // Returns the instance of `Renderer` that should be used to render the given
+ // `Path`. It will ensure that the `renderer` options of the map and paths
+ // are respected, and that the renderers do exist on the map.
+ getRenderer: function (layer) {
+ // @namespace Path; @option renderer: Renderer
+ // Use this specific instance of `Renderer` for this path. Takes
+ // precedence over the map's [default renderer](#map-renderer).
+ var renderer = layer.options.renderer || this._getPaneRenderer(layer.options.pane) || this.options.renderer || this._renderer;
+
+ if (!renderer) {
+ renderer = this._renderer = this._createRenderer();
}
- for (i = 0, len = codes.zoomOut.length; i < len; i++) {
- keys[codes.zoomOut[i]] = -zoomDelta;
+
+ if (!this.hasLayer(renderer)) {
+ this.addLayer(renderer);
}
+ return renderer;
},
- _addHooks: function () {
- L.DomEvent.on(document, 'keydown', this._onKeyDown, this);
- },
+ _getPaneRenderer: function (name) {
+ if (name === 'overlayPane' || name === undefined) {
+ return false;
+ }
- _removeHooks: function () {
- L.DomEvent.off(document, 'keydown', this._onKeyDown, this);
+ var renderer = this._paneRenderers[name];
+ if (renderer === undefined) {
+ renderer = this._createRenderer({pane: name});
+ this._paneRenderers[name] = renderer;
+ }
+ return renderer;
},
- _onKeyDown: function (e) {
- if (e.altKey || e.ctrlKey || e.metaKey) { return; }
-
- var key = e.keyCode,
- map = this._map,
- offset;
-
- if (key in this._panKeys) {
-
- if (map._panAnim && map._panAnim._inProgress) { return; }
-
- offset = this._panKeys[key];
- if (e.shiftKey) {
- offset = L.point(offset).multiplyBy(3);
- }
+ _createRenderer: function (options) {
+ // @namespace Map; @option preferCanvas: Boolean = false
+ // Whether `Path`s should be rendered on a `Canvas` renderer.
+ // By default, all `Path`s are rendered in a `SVG` renderer.
+ return (this.options.preferCanvas && canvas$1(options)) || svg$1(options);
+ }
+});
- map.panBy(offset);
+/*
+ * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object.
+ */
- if (map.options.maxBounds) {
- map.panInsideBounds(map.options.maxBounds);
- }
+/*
+ * @class Rectangle
+ * @aka L.Rectangle
+ * @inherits Polygon
+ *
+ * A class for drawing rectangle overlays on a map. Extends `Polygon`.
+ *
+ * @example
+ *
+ * ```js
+ * // define rectangle geographical bounds
+ * var bounds = [[54.559322, -5.767822], [56.1210604, -3.021240]];
+ *
+ * // create an orange rectangle
+ * L.rectangle(bounds, {color: "#ff7800", weight: 1}).addTo(map);
+ *
+ * // zoom the map to the rectangle bounds
+ * map.fitBounds(bounds);
+ * ```
+ *
+ */
- } else if (key in this._zoomKeys) {
- map.setZoom(map.getZoom() + (e.shiftKey ? 3 : 1) * this._zoomKeys[key]);
- } else if (key === 27) {
- map.closePopup();
+var Rectangle = Polygon.extend({
+ initialize: function (latLngBounds, options) {
+ Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options);
+ },
- } else {
- return;
- }
+ // @method setBounds(latLngBounds: LatLngBounds): this
+ // Redraws the rectangle with the passed bounds.
+ setBounds: function (latLngBounds) {
+ return this.setLatLngs(this._boundsToLatLngs(latLngBounds));
+ },
- L.DomEvent.stop(e);
+ _boundsToLatLngs: function (latLngBounds) {
+ latLngBounds = toLatLngBounds(latLngBounds);
+ return [
+ latLngBounds.getSouthWest(),
+ latLngBounds.getNorthWest(),
+ latLngBounds.getNorthEast(),
+ latLngBounds.getSouthEast()
+ ];
}
});
-// @section Handlers
-// @section Handlers
-// @property keyboard: Handler
-// Keyboard navigation handler.
-L.Map.addInitHook('addHandler', 'keyboard', L.Map.Keyboard);
+// @factory L.rectangle(latLngBounds: LatLngBounds, options?: Polyline options)
+function rectangle(latLngBounds, options) {
+ return new Rectangle(latLngBounds, options);
+}
+
+SVG.create = create$2;
+SVG.pointsToPath = pointsToPath;
+GeoJSON.geometryToLayer = geometryToLayer;
+GeoJSON.coordsToLatLng = coordsToLatLng;
+GeoJSON.coordsToLatLngs = coordsToLatLngs;
+GeoJSON.latLngToCoords = latLngToCoords;
+GeoJSON.latLngsToCoords = latLngsToCoords;
+GeoJSON.getFeature = getFeature;
+GeoJSON.asFeature = asFeature;
/*
- * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable.
+ * L.Handler.BoxZoom is used to add shift-drag zoom interaction to the map
+ * (zoom to a selected bounding box), enabled by default.
*/
+// @namespace Map
+// @section Interaction Options
+Map.mergeOptions({
+ // @option boxZoom: Boolean = true
+ // Whether the map can be zoomed to a rectangular area specified by
+ // dragging the mouse while pressing the shift key.
+ boxZoom: true
+});
-/* @namespace Marker
- * @section Interaction handlers
- *
- * Interaction handlers are properties of a marker instance that allow you to control interaction behavior in runtime, enabling or disabling certain features such as dragging (see `Handler` methods). Example:
- *
- * ```js
- * marker.dragging.disable();
- * ```
- *
- * @property dragging: Handler
- * Marker dragging handler (by both mouse and touch).
- */
-
-L.Handler.MarkerDrag = L.Handler.extend({
- initialize: function (marker) {
- this._marker = marker;
+var BoxZoom = Handler.extend({
+ initialize: function (map) {
+ this._map = map;
+ this._container = map._container;
+ this._pane = map._panes.overlayPane;
+ this._resetStateTimeout = 0;
+ map.on('unload', this._destroy, this);
},
addHooks: function () {
- var icon = this._marker._icon;
-
- if (!this._draggable) {
- this._draggable = new L.Draggable(icon, icon, true);
- }
-
- this._draggable.on({
- dragstart: this._onDragStart,
- drag: this._onDrag,
- dragend: this._onDragEnd
- }, this).enable();
-
- L.DomUtil.addClass(icon, 'leaflet-marker-draggable');
+ on(this._container, 'mousedown', this._onMouseDown, this);
},
removeHooks: function () {
- this._draggable.off({
- dragstart: this._onDragStart,
- drag: this._onDrag,
- dragend: this._onDragEnd
- }, this).disable();
-
- if (this._marker._icon) {
- L.DomUtil.removeClass(this._marker._icon, 'leaflet-marker-draggable');
- }
+ off(this._container, 'mousedown', this._onMouseDown, this);
},
moved: function () {
- return this._draggable && this._draggable._moved;
+ return this._moved;
},
- _onDragStart: function () {
- // @section Dragging events
- // @event dragstart: Event
- // Fired when the user starts dragging the marker.
-
- // @event movestart: Event
- // Fired when the marker starts moving (because of dragging).
-
- this._oldLatLng = this._marker.getLatLng();
- this._marker
- .closePopup()
- .fire('movestart')
- .fire('dragstart');
+ _destroy: function () {
+ remove(this._pane);
+ delete this._pane;
},
- _onDrag: function (e) {
- var marker = this._marker,
- shadow = marker._shadow,
- iconPos = L.DomUtil.getPosition(marker._icon),
- latlng = marker._map.layerPointToLatLng(iconPos);
+ _resetState: function () {
+ this._resetStateTimeout = 0;
+ this._moved = false;
+ },
- // update shadow position
- if (shadow) {
- L.DomUtil.setPosition(shadow, iconPos);
+ _clearDeferredResetState: function () {
+ if (this._resetStateTimeout !== 0) {
+ clearTimeout(this._resetStateTimeout);
+ this._resetStateTimeout = 0;
}
-
- marker._latlng = latlng;
- e.latlng = latlng;
- e.oldLatLng = this._oldLatLng;
-
- // @event drag: Event
- // Fired repeatedly while the user drags the marker.
- marker
- .fire('move', e)
- .fire('drag', e);
},
- _onDragEnd: function (e) {
- // @event dragend: DragEndEvent
- // Fired when the user stops dragging the marker.
-
- // @event moveend: Event
- // Fired when the marker stops moving (because of dragging).
- delete this._oldLatLng;
- this._marker
- .fire('moveend')
- .fire('dragend', e);
- }
-});
-
+ _onMouseDown: function (e) {
+ if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; }
+ // Clear the deferred resetState if it hasn't executed yet, otherwise it
+ // will interrupt the interaction and orphan a box element in the container.
+ this._clearDeferredResetState();
+ this._resetState();
-/*
- * @class Control
- * @aka L.Control
- * @inherits Class
- *
- * L.Control is a base class for implementing map controls. Handles positioning.
- * All other controls extend from this class.
- */
+ disableTextSelection();
+ disableImageDrag();
-L.Control = L.Class.extend({
- // @section
- // @aka Control options
- options: {
- // @option position: String = 'topright'
- // The position of the control (one of the map corners). Possible values are `'topleft'`,
- // `'topright'`, `'bottomleft'` or `'bottomright'`
- position: 'topright'
- },
+ this._startPoint = this._map.mouseEventToContainerPoint(e);
- initialize: function (options) {
- L.setOptions(this, options);
+ on(document, {
+ contextmenu: stop,
+ mousemove: this._onMouseMove,
+ mouseup: this._onMouseUp,
+ keydown: this._onKeyDown
+ }, this);
},
- /* @section
- * Classes extending L.Control will inherit the following methods:
- *
- * @method getPosition: string
- * Returns the position of the control.
- */
- getPosition: function () {
- return this.options.position;
- },
+ _onMouseMove: function (e) {
+ if (!this._moved) {
+ this._moved = true;
- // @method setPosition(position: string): this
- // Sets the position of the control.
- setPosition: function (position) {
- var map = this._map;
+ this._box = create$1('div', 'leaflet-zoom-box', this._container);
+ addClass(this._container, 'leaflet-crosshair');
- if (map) {
- map.removeControl(this);
+ this._map.fire('boxzoomstart');
}
- this.options.position = position;
+ this._point = this._map.mouseEventToContainerPoint(e);
- if (map) {
- map.addControl(this);
- }
+ var bounds = new Bounds(this._point, this._startPoint),
+ size = bounds.getSize();
- return this;
- },
+ setPosition(this._box, bounds.min);
- // @method getContainer: HTMLElement
- // Returns the HTMLElement that contains the control.
- getContainer: function () {
- return this._container;
+ this._box.style.width = size.x + 'px';
+ this._box.style.height = size.y + 'px';
},
- // @method addTo(map: Map): this
- // Adds the control to the given map.
- addTo: function (map) {
- this.remove();
- 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);
+ _finish: function () {
+ if (this._moved) {
+ remove(this._box);
+ removeClass(this._container, 'leaflet-crosshair');
}
- return this;
+ enableTextSelection();
+ enableImageDrag();
+
+ off(document, {
+ contextmenu: stop,
+ mousemove: this._onMouseMove,
+ mouseup: this._onMouseUp,
+ keydown: this._onKeyDown
+ }, this);
},
- // @method remove: this
- // Removes the control from the map it is currently active on.
- remove: function () {
- if (!this._map) {
- return this;
- }
+ _onMouseUp: function (e) {
+ if ((e.which !== 1) && (e.button !== 1)) { return; }
- L.DomUtil.remove(this._container);
+ this._finish();
- if (this.onRemove) {
- this.onRemove(this._map);
- }
+ if (!this._moved) { return; }
+ // Postpone to next JS tick so internal click event handling
+ // still see it as "moved".
+ this._clearDeferredResetState();
+ this._resetStateTimeout = setTimeout(bind(this._resetState, this), 0);
- this._map = null;
+ var bounds = new LatLngBounds(
+ this._map.containerPointToLatLng(this._startPoint),
+ this._map.containerPointToLatLng(this._point));
- return this;
+ this._map
+ .fitBounds(bounds)
+ .fire('boxzoomend', {boxZoomBounds: bounds});
},
- _refocusOnMap: function (e) {
- // if map exists and event is not a keyboard event
- if (this._map && e && e.screenX > 0 && e.screenY > 0) {
- this._map.getContainer().focus();
+ _onKeyDown: function (e) {
+ if (e.keyCode === 27) {
+ this._finish();
}
}
});
-L.control = function (options) {
- return new L.Control(options);
-};
-
-/* @section Extension methods
- * @uninheritable
- *
- * Every control should extend from `L.Control` and (re-)implement the following methods.
- *
- * @method onAdd(map: Map): HTMLElement
- * Should return the container DOM element for the control and add listeners on relevant map events. Called on [`control.addTo(map)`](#control-addTo).
- *
- * @method onRemove(map: Map)
- * Optional method. Should contain all clean up code that removes the listeners previously added in [`onAdd`](#control-onadd). Called on [`control.remove()`](#control-remove).
- */
+// @section Handlers
+// @property boxZoom: Handler
+// Box (shift-drag with mouse) zoom handler.
+Map.addInitHook('addHandler', 'boxZoom', BoxZoom);
-/* @namespace Map
- * @section Methods for Layers and Controls
+/*
+ * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default.
*/
-L.Map.include({
- // @method addControl(control: Control): this
- // Adds the given control to the map
- addControl: function (control) {
- control.addTo(this);
- return this;
- },
-
- // @method removeControl(control: Control): this
- // Removes the given control from the map
- removeControl: function (control) {
- control.remove();
- return this;
- },
- _initControlPos: function () {
- var corners = this._controlCorners = {},
- l = 'leaflet-',
- container = this._controlContainer =
- L.DomUtil.create('div', l + 'control-container', this._container);
+// @namespace Map
+// @section Interaction Options
- function createCorner(vSide, hSide) {
- var className = l + vSide + ' ' + l + hSide;
+Map.mergeOptions({
+ // @option doubleClickZoom: Boolean|String = true
+ // Whether the map can be zoomed in by double clicking on it and
+ // zoomed out by double clicking while holding shift. If passed
+ // `'center'`, double-click zoom will zoom to the center of the
+ // view regardless of where the mouse was.
+ doubleClickZoom: true
+});
- corners[vSide + hSide] = L.DomUtil.create('div', className, container);
- }
+var DoubleClickZoom = Handler.extend({
+ addHooks: function () {
+ this._map.on('dblclick', this._onDoubleClick, this);
+ },
- createCorner('top', 'left');
- createCorner('top', 'right');
- createCorner('bottom', 'left');
- createCorner('bottom', 'right');
+ removeHooks: function () {
+ this._map.off('dblclick', this._onDoubleClick, this);
},
- _clearControlPos: function () {
- L.DomUtil.remove(this._controlContainer);
+ _onDoubleClick: function (e) {
+ var map = this._map,
+ oldZoom = map.getZoom(),
+ delta = map.options.zoomDelta,
+ zoom = e.originalEvent.shiftKey ? oldZoom - delta : oldZoom + delta;
+
+ if (map.options.doubleClickZoom === 'center') {
+ map.setZoom(zoom);
+ } else {
+ map.setZoomAround(e.containerPoint, zoom);
+ }
}
});
-
+// @section Handlers
+//
+// Map properties include interaction handlers that allow you to control
+// interaction behavior in runtime, enabling or disabling certain features such
+// as dragging or touch zoom (see `Handler` methods). For example:
+//
+// ```js
+// map.doubleClickZoom.disable();
+// ```
+//
+// @property doubleClickZoom: Handler
+// Double click zoom handler.
+Map.addInitHook('addHandler', 'doubleClickZoom', DoubleClickZoom);
/*
- * @class Control.Zoom
- * @aka L.Control.Zoom
- * @inherits Control
- *
- * A basic zoom control with two buttons (zoom in and zoom out). It is put on the map by default unless you set its [`zoomControl` option](#map-zoomcontrol) to `false`. Extends `Control`.
+ * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default.
*/
-L.Control.Zoom = L.Control.extend({
- // @section
- // @aka Control.Zoom options
- options: {
- position: 'topleft',
+// @namespace Map
+// @section Interaction Options
+Map.mergeOptions({
+ // @option dragging: Boolean = true
+ // Whether the map be draggable with mouse/touch or not.
+ dragging: true,
- // @option zoomInText: String = '+'
- // The text set on the 'zoom in' button.
- zoomInText: '+',
+ // @section Panning Inertia Options
+ // @option inertia: Boolean = *
+ // If enabled, panning of the map will have an inertia effect where
+ // the map builds momentum while dragging and continues moving in
+ // the same direction for some time. Feels especially nice on touch
+ // devices. Enabled by default unless running on old Android devices.
+ inertia: !android23,
- // @option zoomInTitle: String = 'Zoom in'
- // The title set on the 'zoom in' button.
- zoomInTitle: 'Zoom in',
+ // @option inertiaDeceleration: Number = 3000
+ // The rate with which the inertial movement slows down, in pixels/second².
+ inertiaDeceleration: 3400, // px/s^2
- // @option zoomOutText: String = '-'
- // The text set on the 'zoom out' button.
- zoomOutText: '-',
+ // @option inertiaMaxSpeed: Number = Infinity
+ // Max speed of the inertial movement, in pixels/second.
+ inertiaMaxSpeed: Infinity, // px/s
- // @option zoomOutTitle: String = 'Zoom out'
- // The title set on the 'zoom out' button.
- zoomOutTitle: 'Zoom out'
- },
+ // @option easeLinearity: Number = 0.2
+ easeLinearity: 0.2,
- onAdd: function (map) {
- var zoomName = 'leaflet-control-zoom',
- container = L.DomUtil.create('div', zoomName + ' leaflet-bar'),
- options = this.options;
+ // TODO refactor, move to CRS
+ // @option worldCopyJump: Boolean = false
+ // With this option enabled, the map tracks when you pan to another "copy"
+ // of the world and seamlessly jumps to the original one so that all overlays
+ // like markers and vector layers are still visible.
+ worldCopyJump: false,
- this._zoomInButton = this._createButton(options.zoomInText, options.zoomInTitle,
- zoomName + '-in', container, this._zoomIn);
- this._zoomOutButton = this._createButton(options.zoomOutText, options.zoomOutTitle,
- zoomName + '-out', container, this._zoomOut);
+ // @option maxBoundsViscosity: Number = 0.0
+ // If `maxBounds` is set, this option will control how solid the bounds
+ // are when dragging the map around. The default value of `0.0` allows the
+ // user to drag outside the bounds at normal speed, higher values will
+ // slow down map dragging outside bounds, and `1.0` makes the bounds fully
+ // solid, preventing the user from dragging outside the bounds.
+ maxBoundsViscosity: 0.0
+});
- this._updateDisabled();
- map.on('zoomend zoomlevelschange', this._updateDisabled, this);
+var Drag = Handler.extend({
+ addHooks: function () {
+ if (!this._draggable) {
+ var map = this._map;
- return container;
- },
+ this._draggable = new Draggable(map._mapPane, map._container);
- onRemove: function (map) {
- map.off('zoomend zoomlevelschange', this._updateDisabled, this);
- },
+ this._draggable.on({
+ dragstart: this._onDragStart,
+ drag: this._onDrag,
+ dragend: this._onDragEnd
+ }, this);
- disable: function () {
- this._disabled = true;
- this._updateDisabled();
- return this;
- },
+ this._draggable.on('predrag', this._onPreDragLimit, this);
+ if (map.options.worldCopyJump) {
+ this._draggable.on('predrag', this._onPreDragWrap, this);
+ map.on('zoomend', this._onZoomEnd, this);
- enable: function () {
- this._disabled = false;
- this._updateDisabled();
- return this;
+ map.whenReady(this._onZoomEnd, this);
+ }
+ }
+ addClass(this._map._container, 'leaflet-grab leaflet-touch-drag');
+ this._draggable.enable();
+ this._positions = [];
+ this._times = [];
},
- _zoomIn: function (e) {
- if (!this._disabled && this._map._zoom < this._map.getMaxZoom()) {
- this._map.zoomIn(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1));
- }
+ removeHooks: function () {
+ removeClass(this._map._container, 'leaflet-grab');
+ removeClass(this._map._container, 'leaflet-touch-drag');
+ this._draggable.disable();
},
- _zoomOut: function (e) {
- if (!this._disabled && this._map._zoom > this._map.getMinZoom()) {
- this._map.zoomOut(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1));
- }
+ moved: function () {
+ return this._draggable && this._draggable._moved;
},
- _createButton: function (html, title, className, container, fn) {
- var link = L.DomUtil.create('a', className, container);
- link.innerHTML = html;
- link.href = '#';
- link.title = title;
+ moving: function () {
+ return this._draggable && this._draggable._moving;
+ },
- /*
- * Will force screen readers like VoiceOver to read this as "Zoom in - button"
- */
- link.setAttribute('role', 'button');
- link.setAttribute('aria-label', title);
+ _onDragStart: function () {
+ var map = this._map;
- L.DomEvent
- .on(link, 'mousedown dblclick', L.DomEvent.stopPropagation)
- .on(link, 'click', L.DomEvent.stop)
- .on(link, 'click', fn, this)
- .on(link, 'click', this._refocusOnMap, this);
+ map._stop();
+ if (this._map.options.maxBounds && this._map.options.maxBoundsViscosity) {
+ var bounds = toLatLngBounds(this._map.options.maxBounds);
- return link;
- },
+ this._offsetLimit = toBounds(
+ this._map.latLngToContainerPoint(bounds.getNorthWest()).multiplyBy(-1),
+ this._map.latLngToContainerPoint(bounds.getSouthEast()).multiplyBy(-1)
+ .add(this._map.getSize()));
- _updateDisabled: function () {
- var map = this._map,
- className = 'leaflet-disabled';
+ this._viscosity = Math.min(1.0, Math.max(0.0, this._map.options.maxBoundsViscosity));
+ } else {
+ this._offsetLimit = null;
+ }
- L.DomUtil.removeClass(this._zoomInButton, className);
- L.DomUtil.removeClass(this._zoomOutButton, className);
+ map
+ .fire('movestart')
+ .fire('dragstart');
- if (this._disabled || map._zoom === map.getMinZoom()) {
- L.DomUtil.addClass(this._zoomOutButton, className);
- }
- if (this._disabled || map._zoom === map.getMaxZoom()) {
- L.DomUtil.addClass(this._zoomInButton, className);
+ if (map.options.inertia) {
+ this._positions = [];
+ this._times = [];
}
- }
-});
-
-// @namespace Map
-// @section Control options
-// @option zoomControl: Boolean = true
-// Whether a [zoom control](#control-zoom) is added to the map by default.
-L.Map.mergeOptions({
- zoomControl: true
-});
+ },
-L.Map.addInitHook(function () {
- if (this.options.zoomControl) {
- this.zoomControl = new L.Control.Zoom();
- this.addControl(this.zoomControl);
- }
-});
+ _onDrag: function (e) {
+ if (this._map.options.inertia) {
+ var time = this._lastTime = +new Date(),
+ pos = this._lastPos = this._draggable._absPos || this._draggable._newPos;
-// @namespace Control.Zoom
-// @factory L.control.zoom(options: Control.Zoom options)
-// Creates a zoom control
-L.control.zoom = function (options) {
- return new L.Control.Zoom(options);
-};
+ this._positions.push(pos);
+ this._times.push(time);
+ this._prunePositions(time);
+ }
+ this._map
+ .fire('move', e)
+ .fire('drag', e);
+ },
-/*
- * @class Control.Attribution
- * @aka L.Control.Attribution
- * @inherits Control
- *
- * The attribution control allows you to display attribution data in a small text box on a map. It is put on the map by default unless you set its [`attributionControl` option](#map-attributioncontrol) to `false`, and it fetches attribution texts from layers with the [`getAttribution` method](#layer-getattribution) automatically. Extends Control.
- */
+ _prunePositions: function (time) {
+ while (this._positions.length > 1 && time - this._times[0] > 50) {
+ this._positions.shift();
+ this._times.shift();
+ }
+ },
-L.Control.Attribution = L.Control.extend({
- // @section
- // @aka Control.Attribution options
- options: {
- position: 'bottomright',
+ _onZoomEnd: function () {
+ var pxCenter = this._map.getSize().divideBy(2),
+ pxWorldCenter = this._map.latLngToLayerPoint([0, 0]);
- // @option prefix: String = 'Leaflet'
- // The HTML text shown before the attributions. Pass `false` to disable.
- prefix: '<a href="http://leafletjs.com" title="A JS library for interactive maps">Leaflet</a>'
+ this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;
+ this._worldWidth = this._map.getPixelWorldBounds().getSize().x;
},
- initialize: function (options) {
- L.setOptions(this, options);
-
- this._attributions = {};
+ _viscousLimit: function (value, threshold) {
+ return value - (value - threshold) * this._viscosity;
},
- onAdd: function (map) {
- map.attributionControl = this;
- this._container = L.DomUtil.create('div', 'leaflet-control-attribution');
- if (L.DomEvent) {
- L.DomEvent.disableClickPropagation(this._container);
- }
+ _onPreDragLimit: function () {
+ if (!this._viscosity || !this._offsetLimit) { return; }
- // TODO ugly, refactor
- for (var i in map._layers) {
- if (map._layers[i].getAttribution) {
- this.addAttribution(map._layers[i].getAttribution());
- }
- }
+ var offset = this._draggable._newPos.subtract(this._draggable._startPos);
- this._update();
+ var limit = this._offsetLimit;
+ if (offset.x < limit.min.x) { offset.x = this._viscousLimit(offset.x, limit.min.x); }
+ if (offset.y < limit.min.y) { offset.y = this._viscousLimit(offset.y, limit.min.y); }
+ if (offset.x > limit.max.x) { offset.x = this._viscousLimit(offset.x, limit.max.x); }
+ if (offset.y > limit.max.y) { offset.y = this._viscousLimit(offset.y, limit.max.y); }
- return this._container;
+ this._draggable._newPos = this._draggable._startPos.add(offset);
},
- // @method setPrefix(prefix: String): this
- // Sets the text before the attributions.
- setPrefix: function (prefix) {
- this.options.prefix = prefix;
- this._update();
- return this;
+ _onPreDragWrap: 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._absPos = this._draggable._newPos.clone();
+ this._draggable._newPos.x = newX;
},
- // @method addAttribution(text: String): this
- // Adds an attribution text (e.g. `'Vector data © Mapbox'`).
- addAttribution: function (text) {
- if (!text) { return this; }
+ _onDragEnd: function (e) {
+ var map = this._map,
+ options = map.options,
- if (!this._attributions[text]) {
- this._attributions[text] = 0;
- }
- this._attributions[text]++;
+ noInertia = !options.inertia || this._times.length < 2;
- this._update();
+ map.fire('dragend', e);
- return this;
- },
+ if (noInertia) {
+ map.fire('moveend');
- // @method removeAttribution(text: String): this
- // Removes an attribution text.
- removeAttribution: function (text) {
- if (!text) { return this; }
+ } else {
+ this._prunePositions(+new Date());
- if (this._attributions[text]) {
- this._attributions[text]--;
- this._update();
- }
+ var direction = this._lastPos.subtract(this._positions[0]),
+ duration = (this._lastTime - this._times[0]) / 1000,
+ ease = options.easeLinearity,
- return this;
- },
+ speedVector = direction.multiplyBy(ease / duration),
+ speed = speedVector.distanceTo([0, 0]),
- _update: function () {
- if (!this._map) { return; }
+ limitedSpeed = Math.min(options.inertiaMaxSpeed, speed),
+ limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed),
- var attribs = [];
+ decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease),
+ offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round();
- for (var i in this._attributions) {
- if (this._attributions[i]) {
- attribs.push(i);
- }
- }
+ if (!offset.x && !offset.y) {
+ map.fire('moveend');
- var prefixAndAttribs = [];
+ } else {
+ offset = map._limitOffset(offset, map.options.maxBounds);
- if (this.options.prefix) {
- prefixAndAttribs.push(this.options.prefix);
- }
- if (attribs.length) {
- prefixAndAttribs.push(attribs.join(', '));
+ requestAnimFrame(function () {
+ map.panBy(offset, {
+ duration: decelerationDuration,
+ easeLinearity: ease,
+ noMoveStart: true,
+ animate: true
+ });
+ });
+ }
}
-
- this._container.innerHTML = prefixAndAttribs.join(' | ');
}
});
+// @section Handlers
+// @property dragging: Handler
+// Map dragging handler (by both mouse and touch).
+Map.addInitHook('addHandler', 'dragging', Drag);
+
+/*
+ * L.Map.Keyboard is handling keyboard interaction with the map, enabled by default.
+ */
+
// @namespace Map
-// @section Control options
-// @option attributionControl: Boolean = true
-// Whether a [attribution control](#control-attribution) is added to the map by default.
-L.Map.mergeOptions({
- attributionControl: true
-});
+// @section Keyboard Navigation Options
+Map.mergeOptions({
+ // @option keyboard: Boolean = true
+ // Makes the map focusable and allows users to navigate the map with keyboard
+ // arrows and `+`/`-` keys.
+ keyboard: true,
-L.Map.addInitHook(function () {
- if (this.options.attributionControl) {
- new L.Control.Attribution().addTo(this);
- }
+ // @option keyboardPanDelta: Number = 80
+ // Amount of pixels to pan when pressing an arrow key.
+ keyboardPanDelta: 80
});
-// @namespace Control.Attribution
-// @factory L.control.attribution(options: Control.Attribution options)
-// Creates an attribution control.
-L.control.attribution = function (options) {
- return new L.Control.Attribution(options);
-};
+var Keyboard = Handler.extend({
+ keyCodes: {
+ left: [37],
+ right: [39],
+ down: [40],
+ up: [38],
+ zoomIn: [187, 107, 61, 171],
+ zoomOut: [189, 109, 54, 173]
+ },
+ initialize: function (map) {
+ this._map = map;
-/*
- * @class Control.Scale
- * @aka L.Control.Scale
- * @inherits Control
- *
- * A simple scale control that shows the scale of the current center of screen in metric (m/km) and imperial (mi/ft) systems. Extends `Control`.
- *
- * @example
- *
- * ```js
- * L.control.scale().addTo(map);
- * ```
- */
+ this._setPanDelta(map.options.keyboardPanDelta);
+ this._setZoomDelta(map.options.zoomDelta);
+ },
-L.Control.Scale = L.Control.extend({
- // @section
- // @aka Control.Scale options
- options: {
- position: 'bottomleft',
+ addHooks: function () {
+ var container = this._map._container;
- // @option maxWidth: Number = 100
- // Maximum width of the control in pixels. The width is set dynamically to show round values (e.g. 100, 200, 500).
- maxWidth: 100,
+ // make the container focusable by tabbing
+ if (container.tabIndex <= 0) {
+ container.tabIndex = '0';
+ }
- // @option metric: Boolean = True
- // Whether to show the metric scale line (m/km).
- metric: true,
+ on(container, {
+ focus: this._onFocus,
+ blur: this._onBlur,
+ mousedown: this._onMouseDown
+ }, this);
- // @option imperial: Boolean = True
- // Whether to show the imperial scale line (mi/ft).
- imperial: true
+ this._map.on({
+ focus: this._addHooks,
+ blur: this._removeHooks
+ }, this);
+ },
- // @option updateWhenIdle: Boolean = false
- // If `true`, the control is updated on [`moveend`](#map-moveend), otherwise it's always up-to-date (updated on [`move`](#map-move)).
+ removeHooks: function () {
+ this._removeHooks();
+
+ off(this._map._container, {
+ focus: this._onFocus,
+ blur: this._onBlur,
+ mousedown: this._onMouseDown
+ }, this);
+
+ this._map.off({
+ focus: this._addHooks,
+ blur: this._removeHooks
+ }, this);
},
- onAdd: function (map) {
- var className = 'leaflet-control-scale',
- container = L.DomUtil.create('div', className),
- options = this.options;
+ _onMouseDown: function () {
+ if (this._focused) { return; }
- this._addScales(options, className + '-line', container);
+ var body = document.body,
+ docEl = document.documentElement,
+ top = body.scrollTop || docEl.scrollTop,
+ left = body.scrollLeft || docEl.scrollLeft;
- map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
- map.whenReady(this._update, this);
+ this._map._container.focus();
- return container;
+ window.scrollTo(left, top);
},
- onRemove: function (map) {
- map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
+ _onFocus: function () {
+ this._focused = true;
+ this._map.fire('focus');
},
- _addScales: function (options, className, container) {
- if (options.metric) {
- this._mScale = L.DomUtil.create('div', className, container);
- }
- if (options.imperial) {
- this._iScale = L.DomUtil.create('div', className, container);
- }
+ _onBlur: function () {
+ this._focused = false;
+ this._map.fire('blur');
},
- _update: function () {
- var map = this._map,
- y = map.getSize().y / 2;
-
- var maxMeters = map.distance(
- map.containerPointToLatLng([0, y]),
- map.containerPointToLatLng([this.options.maxWidth, y]));
-
- this._updateScales(maxMeters);
- },
+ _setPanDelta: function (panDelta) {
+ var keys = this._panKeys = {},
+ codes = this.keyCodes,
+ i, len;
- _updateScales: function (maxMeters) {
- if (this.options.metric && maxMeters) {
- this._updateMetric(maxMeters);
+ for (i = 0, len = codes.left.length; i < len; i++) {
+ keys[codes.left[i]] = [-1 * panDelta, 0];
}
- if (this.options.imperial && maxMeters) {
- this._updateImperial(maxMeters);
+ for (i = 0, len = codes.right.length; i < len; i++) {
+ keys[codes.right[i]] = [panDelta, 0];
+ }
+ for (i = 0, len = codes.down.length; i < len; i++) {
+ keys[codes.down[i]] = [0, panDelta];
+ }
+ for (i = 0, len = codes.up.length; i < len; i++) {
+ keys[codes.up[i]] = [0, -1 * panDelta];
}
},
- _updateMetric: function (maxMeters) {
- var meters = this._getRoundNum(maxMeters),
- label = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km';
+ _setZoomDelta: function (zoomDelta) {
+ var keys = this._zoomKeys = {},
+ codes = this.keyCodes,
+ i, len;
- this._updateScale(this._mScale, label, meters / maxMeters);
+ for (i = 0, len = codes.zoomIn.length; i < len; i++) {
+ keys[codes.zoomIn[i]] = zoomDelta;
+ }
+ for (i = 0, len = codes.zoomOut.length; i < len; i++) {
+ keys[codes.zoomOut[i]] = -zoomDelta;
+ }
},
- _updateImperial: function (maxMeters) {
- var maxFeet = maxMeters * 3.2808399,
- maxMiles, miles, feet;
-
- if (maxFeet > 5280) {
- maxMiles = maxFeet / 5280;
- miles = this._getRoundNum(maxMiles);
- this._updateScale(this._iScale, miles + ' mi', miles / maxMiles);
+ _addHooks: function () {
+ on(document, 'keydown', this._onKeyDown, this);
+ },
- } else {
- feet = this._getRoundNum(maxFeet);
- this._updateScale(this._iScale, feet + ' ft', feet / maxFeet);
- }
+ _removeHooks: function () {
+ off(document, 'keydown', this._onKeyDown, this);
},
- _updateScale: function (scale, text, ratio) {
- scale.style.width = Math.round(this.options.maxWidth * ratio) + 'px';
- scale.innerHTML = text;
- },
+ _onKeyDown: function (e) {
+ if (e.altKey || e.ctrlKey || e.metaKey) { return; }
- _getRoundNum: function (num) {
- var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1),
- d = num / pow10;
+ var key = e.keyCode,
+ map = this._map,
+ offset;
- d = d >= 10 ? 10 :
- d >= 5 ? 5 :
- d >= 3 ? 3 :
- d >= 2 ? 2 : 1;
+ if (key in this._panKeys) {
+ if (!map._panAnim || !map._panAnim._inProgress) {
+ offset = this._panKeys[key];
+ if (e.shiftKey) {
+ offset = toPoint(offset).multiplyBy(3);
+ }
- return pow10 * d;
- }
-});
+ map.panBy(offset);
+
+ if (map.options.maxBounds) {
+ map.panInsideBounds(map.options.maxBounds);
+ }
+ }
+ } else if (key in this._zoomKeys) {
+ map.setZoom(map.getZoom() + (e.shiftKey ? 3 : 1) * this._zoomKeys[key]);
+ } else if (key === 27 && map._popup && map._popup.options.closeOnEscapeKey) {
+ map.closePopup();
-// @factory L.control.scale(options?: Control.Scale options)
-// Creates an scale control with the given options.
-L.control.scale = function (options) {
- return new L.Control.Scale(options);
-};
+ } else {
+ return;
+ }
+ stop(e);
+ }
+});
+// @section Handlers
+// @section Handlers
+// @property keyboard: Handler
+// Keyboard navigation handler.
+Map.addInitHook('addHandler', 'keyboard', Keyboard);
/*
- * @class Control.Layers
- * @aka L.Control.Layers
- * @inherits Control
- *
- * The layers control gives users the ability to switch between different base layers and switch overlays on/off (check out the [detailed example](http://leafletjs.com/examples/layers-control.html)). Extends `Control`.
- *
- * @example
- *
- * ```js
- * var baseLayers = {
- * "Mapbox": mapbox,
- * "OpenStreetMap": osm
- * };
- *
- * var overlays = {
- * "Marker": marker,
- * "Roads": roadsLayer
- * };
- *
- * L.control.layers(baseLayers, overlays).addTo(map);
- * ```
- *
- * The `baseLayers` and `overlays` parameters are object literals with layer names as keys and `Layer` objects as values:
- *
- * ```js
- * {
- * "<someName1>": layer1,
- * "<someName2>": layer2
- * }
- * ```
- *
- * The layer names can contain HTML, which allows you to add additional styling to the items:
- *
- * ```js
- * {"<img src='my-layer-icon' /> <span class='my-layer-item'>My Layer</span>": myLayer}
- * ```
+ * L.Handler.ScrollWheelZoom is used by L.Map to enable mouse scroll wheel zoom on the map.
*/
+// @namespace Map
+// @section Interaction Options
+Map.mergeOptions({
+ // @section Mousewheel options
+ // @option scrollWheelZoom: Boolean|String = true
+ // Whether the map can be zoomed by using the mouse wheel. If passed `'center'`,
+ // it will zoom to the center of the view regardless of where the mouse was.
+ scrollWheelZoom: true,
-L.Control.Layers = L.Control.extend({
- // @section
- // @aka Control.Layers options
- options: {
- // @option collapsed: Boolean = true
- // If `true`, the control will be collapsed into an icon and expanded on mouse hover or touch.
- collapsed: true,
- position: 'topright',
+ // @option wheelDebounceTime: Number = 40
+ // Limits the rate at which a wheel can fire (in milliseconds). By default
+ // user can't zoom via wheel more often than once per 40 ms.
+ wheelDebounceTime: 40,
- // @option autoZIndex: Boolean = true
- // If `true`, the control will assign zIndexes in increasing order to all of its layers so that the order is preserved when switching them on/off.
- autoZIndex: true,
+ // @option wheelPxPerZoomLevel: Number = 60
+ // How many scroll pixels (as reported by [L.DomEvent.getWheelDelta](#domevent-getwheeldelta))
+ // mean a change of one full zoom level. Smaller values will make wheel-zooming
+ // faster (and vice versa).
+ wheelPxPerZoomLevel: 60
+});
- // @option hideSingleBase: Boolean = false
- // If `true`, the base layers in the control will be hidden when there is only one.
- hideSingleBase: false,
+var ScrollWheelZoom = Handler.extend({
+ addHooks: function () {
+ on(this._map._container, 'mousewheel', this._onWheelScroll, this);
- // @option sortLayers: Boolean = false
- // Whether to sort the layers. When `false`, layers will keep the order
- // in which they were added to the control.
- sortLayers: false,
+ this._delta = 0;
+ },
- // @option sortFunction: Function = *
- // A [compare function](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/sort)
- // that will be used for sorting the layers, when `sortLayers` is `true`.
- // The function receives both the `L.Layer` instances and their names, as in
- // `sortFunction(layerA, layerB, nameA, nameB)`.
- // By default, it sorts layers alphabetically by their name.
- sortFunction: function (layerA, layerB, nameA, nameB) {
- return nameA < nameB ? -1 : (nameB < nameA ? 1 : 0);
- }
+ removeHooks: function () {
+ off(this._map._container, 'mousewheel', this._onWheelScroll, this);
},
- initialize: function (baseLayers, overlays, options) {
- L.setOptions(this, options);
+ _onWheelScroll: function (e) {
+ var delta = getWheelDelta(e);
- this._layers = [];
- this._lastZIndex = 0;
- this._handlingClick = false;
+ var debounce = this._map.options.wheelDebounceTime;
- for (var i in baseLayers) {
- this._addLayer(baseLayers[i], i);
- }
+ this._delta += delta;
+ this._lastMousePos = this._map.mouseEventToContainerPoint(e);
- for (i in overlays) {
- this._addLayer(overlays[i], i, true);
+ if (!this._startTime) {
+ this._startTime = +new Date();
}
- },
- onAdd: function (map) {
- this._initLayout();
- this._update();
+ var left = Math.max(debounce - (+new Date() - this._startTime), 0);
- this._map = map;
- map.on('zoomend', this._checkDisabledLayers, this);
+ clearTimeout(this._timer);
+ this._timer = setTimeout(bind(this._performZoom, this), left);
- return this._container;
+ stop(e);
},
- onRemove: function () {
- this._map.off('zoomend', this._checkDisabledLayers, this);
-
- for (var i = 0; i < this._layers.length; i++) {
- this._layers[i].layer.off('add remove', this._onLayerChange, this);
- }
- },
+ _performZoom: function () {
+ var map = this._map,
+ zoom = map.getZoom(),
+ snap = this._map.options.zoomSnap || 0;
- // @method addBaseLayer(layer: Layer, name: String): this
- // Adds a base layer (radio button entry) with the given name to the control.
- addBaseLayer: function (layer, name) {
- this._addLayer(layer, name);
- return (this._map) ? this._update() : this;
- },
+ map._stop(); // stop panning and fly animations if any
- // @method addOverlay(layer: Layer, name: String): this
- // Adds an overlay (checkbox entry) with the given name to the control.
- addOverlay: function (layer, name) {
- this._addLayer(layer, name, true);
- return (this._map) ? this._update() : this;
- },
+ // map the delta with a sigmoid function to -4..4 range leaning on -1..1
+ var d2 = this._delta / (this._map.options.wheelPxPerZoomLevel * 4),
+ d3 = 4 * Math.log(2 / (1 + Math.exp(-Math.abs(d2)))) / Math.LN2,
+ d4 = snap ? Math.ceil(d3 / snap) * snap : d3,
+ delta = map._limitZoom(zoom + (this._delta > 0 ? d4 : -d4)) - zoom;
- // @method removeLayer(layer: Layer): this
- // Remove the given layer from the control.
- removeLayer: function (layer) {
- layer.off('add remove', this._onLayerChange, this);
+ this._delta = 0;
+ this._startTime = null;
- var obj = this._getLayer(L.stamp(layer));
- if (obj) {
- this._layers.splice(this._layers.indexOf(obj), 1);
- }
- return (this._map) ? this._update() : this;
- },
+ if (!delta) { return; }
- // @method expand(): this
- // Expand the control container if collapsed.
- expand: function () {
- L.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded');
- this._form.style.height = null;
- var acceptableHeight = this._map.getSize().y - (this._container.offsetTop + 50);
- if (acceptableHeight < this._form.clientHeight) {
- L.DomUtil.addClass(this._form, 'leaflet-control-layers-scrollbar');
- this._form.style.height = acceptableHeight + 'px';
+ if (map.options.scrollWheelZoom === 'center') {
+ map.setZoom(zoom + delta);
} else {
- L.DomUtil.removeClass(this._form, 'leaflet-control-layers-scrollbar');
+ map.setZoomAround(this._lastMousePos, zoom + delta);
}
- this._checkDisabledLayers();
- return this;
- },
-
- // @method collapse(): this
- // Collapse the control container if expanded.
- collapse: function () {
- L.DomUtil.removeClass(this._container, 'leaflet-control-layers-expanded');
- return this;
- },
-
- _initLayout: function () {
- var className = 'leaflet-control-layers',
- container = this._container = L.DomUtil.create('div', className),
- collapsed = this.options.collapsed;
+ }
+});
- // makes this work on IE touch devices by stopping it from firing a mouseout event when the touch is released
- container.setAttribute('aria-haspopup', true);
+// @section Handlers
+// @property scrollWheelZoom: Handler
+// Scroll wheel zoom handler.
+Map.addInitHook('addHandler', 'scrollWheelZoom', ScrollWheelZoom);
- L.DomEvent.disableClickPropagation(container);
- if (!L.Browser.touch) {
- L.DomEvent.disableScrollPropagation(container);
- }
+/*
+ * L.Map.Tap is used to enable mobile hacks like quick taps and long hold.
+ */
- var form = this._form = L.DomUtil.create('form', className + '-list');
+// @namespace Map
+// @section Interaction Options
+Map.mergeOptions({
+ // @section Touch interaction options
+ // @option tap: Boolean = true
+ // Enables mobile hacks for supporting instant taps (fixing 200ms click
+ // delay on iOS/Android) and touch holds (fired as `contextmenu` events).
+ tap: true,
- if (collapsed) {
- this._map.on('click', this.collapse, this);
+ // @option tapTolerance: Number = 15
+ // The max number of pixels a user can shift his finger during touch
+ // for it to be considered a valid tap.
+ tapTolerance: 15
+});
- if (!L.Browser.android) {
- L.DomEvent.on(container, {
- mouseenter: this.expand,
- mouseleave: this.collapse
- }, this);
- }
- }
+var Tap = Handler.extend({
+ addHooks: function () {
+ on(this._map._container, 'touchstart', this._onDown, this);
+ },
- var link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container);
- link.href = '#';
- link.title = 'Layers';
+ removeHooks: function () {
+ off(this._map._container, 'touchstart', this._onDown, this);
+ },
- if (L.Browser.touch) {
- L.DomEvent
- .on(link, 'click', L.DomEvent.stop)
- .on(link, 'click', this.expand, this);
- } else {
- L.DomEvent.on(link, 'focus', this.expand, this);
- }
+ _onDown: function (e) {
+ if (!e.touches) { return; }
- // work around for Firefox Android issue https://github.com/Leaflet/Leaflet/issues/2033
- L.DomEvent.on(form, 'click', function () {
- setTimeout(L.bind(this._onInputClick, this), 0);
- }, this);
+ preventDefault(e);
- // TODO keyboard accessibility
+ this._fireClick = true;
- if (!collapsed) {
- this.expand();
+ // don't simulate click or track longpress if more than 1 touch
+ if (e.touches.length > 1) {
+ this._fireClick = false;
+ clearTimeout(this._holdTimeout);
+ return;
}
- 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);
+ var first = e.touches[0],
+ el = first.target;
- container.appendChild(form);
- },
+ this._startPos = this._newPos = new Point(first.clientX, first.clientY);
- _getLayer: function (id) {
- for (var i = 0; i < this._layers.length; i++) {
+ // if touching a link, highlight it
+ if (el.tagName && el.tagName.toLowerCase() === 'a') {
+ addClass(el, 'leaflet-active');
+ }
- if (this._layers[i] && L.stamp(this._layers[i].layer) === id) {
- return this._layers[i];
+ // simulate long hold but setting a timeout
+ this._holdTimeout = setTimeout(bind(function () {
+ if (this._isTapValid()) {
+ this._fireClick = false;
+ this._onUp();
+ this._simulateEvent('contextmenu', first);
}
- }
- },
+ }, this), 1000);
- _addLayer: function (layer, name, overlay) {
- layer.on('add remove', this._onLayerChange, this);
+ this._simulateEvent('mousedown', first);
- this._layers.push({
- layer: layer,
- name: name,
- overlay: overlay
- });
+ on(document, {
+ touchmove: this._onMove,
+ touchend: this._onUp
+ }, this);
+ },
- if (this.options.sortLayers) {
- this._layers.sort(L.bind(function (a, b) {
- return this.options.sortFunction(a.layer, b.layer, a.name, b.name);
- }, this));
- }
+ _onUp: function (e) {
+ clearTimeout(this._holdTimeout);
- if (this.options.autoZIndex && layer.setZIndex) {
- this._lastZIndex++;
- layer.setZIndex(this._lastZIndex);
- }
- },
+ off(document, {
+ touchmove: this._onMove,
+ touchend: this._onUp
+ }, this);
- _update: function () {
- if (!this._container) { return this; }
+ if (this._fireClick && e && e.changedTouches) {
- L.DomUtil.empty(this._baseLayersList);
- L.DomUtil.empty(this._overlaysList);
+ var first = e.changedTouches[0],
+ el = first.target;
- var baseLayersPresent, overlaysPresent, i, obj, baseLayersCount = 0;
+ if (el && el.tagName && el.tagName.toLowerCase() === 'a') {
+ removeClass(el, 'leaflet-active');
+ }
- for (i = 0; i < this._layers.length; i++) {
- obj = this._layers[i];
- this._addItem(obj);
- overlaysPresent = overlaysPresent || obj.overlay;
- baseLayersPresent = baseLayersPresent || !obj.overlay;
- baseLayersCount += !obj.overlay ? 1 : 0;
- }
+ this._simulateEvent('mouseup', first);
- // Hide base layers section if there's only one layer.
- if (this.options.hideSingleBase) {
- baseLayersPresent = baseLayersPresent && baseLayersCount > 1;
- this._baseLayersList.style.display = baseLayersPresent ? '' : 'none';
+ // simulate click if the touch didn't move too much
+ if (this._isTapValid()) {
+ this._simulateEvent('click', first);
+ }
}
+ },
- this._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none';
+ _isTapValid: function () {
+ return this._newPos.distanceTo(this._startPos) <= this._map.options.tapTolerance;
+ },
- return this;
+ _onMove: function (e) {
+ var first = e.touches[0];
+ this._newPos = new Point(first.clientX, first.clientY);
+ this._simulateEvent('mousemove', first);
},
- _onLayerChange: function (e) {
- if (!this._handlingClick) {
- this._update();
- }
+ _simulateEvent: function (type, e) {
+ var simulatedEvent = document.createEvent('MouseEvents');
- var obj = this._getLayer(L.stamp(e.target));
+ simulatedEvent._simulated = true;
+ e.target._simulatedClick = true;
- // @namespace Map
- // @section Layer events
- // @event baselayerchange: LayersControlEvent
- // Fired when the base layer is changed through the [layer control](#control-layers).
- // @event overlayadd: LayersControlEvent
- // Fired when an overlay is selected through the [layer control](#control-layers).
- // @event overlayremove: LayersControlEvent
- // Fired when an overlay is deselected through the [layer control](#control-layers).
- // @namespace Control.Layers
- var type = obj.overlay ?
- (e.type === 'add' ? 'overlayadd' : 'overlayremove') :
- (e.type === 'add' ? 'baselayerchange' : null);
+ simulatedEvent.initMouseEvent(
+ type, true, true, window, 1,
+ e.screenX, e.screenY,
+ e.clientX, e.clientY,
+ false, false, false, false, 0, null);
- if (type) {
- this._map.fire(type, obj);
- }
- },
+ e.target.dispatchEvent(simulatedEvent);
+ }
+});
- // 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) {
+// @section Handlers
+// @property tap: Handler
+// Mobile touch hacks (quick tap and touch hold) handler.
+if (touch && !pointer) {
+ Map.addInitHook('addHandler', 'tap', Tap);
+}
- var radioHtml = '<input type="radio" class="leaflet-control-layers-selector" name="' +
- name + '"' + (checked ? ' checked="checked"' : '') + '/>';
+/*
+ * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers.
+ */
- var radioFragment = document.createElement('div');
- radioFragment.innerHTML = radioHtml;
+// @namespace Map
+// @section Interaction Options
+Map.mergeOptions({
+ // @section Touch interaction options
+ // @option touchZoom: Boolean|String = *
+ // Whether the map can be zoomed by touch-dragging with two fingers. If
+ // passed `'center'`, it will zoom to the center of the view regardless of
+ // where the touch events (fingers) were. Enabled for touch-capable web
+ // browsers except for old Androids.
+ touchZoom: touch && !android23,
- return radioFragment.firstChild;
+ // @option bounceAtZoomLimits: Boolean = true
+ // Set it to false if you don't want the map to zoom beyond min/max zoom
+ // and then bounce back when pinch-zooming.
+ bounceAtZoomLimits: true
+});
+
+var TouchZoom = Handler.extend({
+ addHooks: function () {
+ addClass(this._map._container, 'leaflet-touch-zoom');
+ on(this._map._container, 'touchstart', this._onTouchStart, this);
},
- _addItem: function (obj) {
- var label = document.createElement('label'),
- checked = this._map.hasLayer(obj.layer),
- input;
+ removeHooks: function () {
+ removeClass(this._map._container, 'leaflet-touch-zoom');
+ off(this._map._container, 'touchstart', this._onTouchStart, this);
+ },
- 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);
- }
+ _onTouchStart: function (e) {
+ var map = this._map;
+ if (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; }
- input.layerId = L.stamp(obj.layer);
+ var p1 = map.mouseEventToContainerPoint(e.touches[0]),
+ p2 = map.mouseEventToContainerPoint(e.touches[1]);
- L.DomEvent.on(input, 'click', this._onInputClick, this);
+ this._centerPoint = map.getSize()._divideBy(2);
+ this._startLatLng = map.containerPointToLatLng(this._centerPoint);
+ if (map.options.touchZoom !== 'center') {
+ this._pinchStartLatLng = map.containerPointToLatLng(p1.add(p2)._divideBy(2));
+ }
- var name = document.createElement('span');
- name.innerHTML = ' ' + obj.name;
+ this._startDist = p1.distanceTo(p2);
+ this._startZoom = map.getZoom();
- // Helps from preventing layer control flicker when checkboxes are disabled
- // https://github.com/Leaflet/Leaflet/issues/2771
- var holder = document.createElement('div');
+ this._moved = false;
+ this._zooming = true;
- label.appendChild(holder);
- holder.appendChild(input);
- holder.appendChild(name);
+ map._stop();
- var container = obj.overlay ? this._overlaysList : this._baseLayersList;
- container.appendChild(label);
+ on(document, 'touchmove', this._onTouchMove, this);
+ on(document, 'touchend', this._onTouchEnd, this);
- this._checkDisabledLayers();
- return label;
+ preventDefault(e);
},
- _onInputClick: function () {
- var inputs = this._form.getElementsByTagName('input'),
- input, layer, hasLayer;
- var addedLayers = [],
- removedLayers = [];
-
- this._handlingClick = true;
+ _onTouchMove: function (e) {
+ if (!e.touches || e.touches.length !== 2 || !this._zooming) { return; }
- for (var i = inputs.length - 1; i >= 0; i--) {
- input = inputs[i];
- layer = this._getLayer(input.layerId).layer;
- hasLayer = this._map.hasLayer(layer);
+ var map = this._map,
+ p1 = map.mouseEventToContainerPoint(e.touches[0]),
+ p2 = map.mouseEventToContainerPoint(e.touches[1]),
+ scale = p1.distanceTo(p2) / this._startDist;
- if (input.checked && !hasLayer) {
- addedLayers.push(layer);
+ this._zoom = map.getScaleZoom(scale, this._startZoom);
- } else if (!input.checked && hasLayer) {
- removedLayers.push(layer);
- }
+ if (!map.options.bounceAtZoomLimits && (
+ (this._zoom < map.getMinZoom() && scale < 1) ||
+ (this._zoom > map.getMaxZoom() && scale > 1))) {
+ this._zoom = map._limitZoom(this._zoom);
}
- // Bugfix issue 2318: Should remove all old layers before readding new ones
- for (i = 0; i < removedLayers.length; i++) {
- this._map.removeLayer(removedLayers[i]);
- }
- for (i = 0; i < addedLayers.length; i++) {
- this._map.addLayer(addedLayers[i]);
+ if (map.options.touchZoom === 'center') {
+ this._center = this._startLatLng;
+ if (scale === 1) { return; }
+ } else {
+ // Get delta from pinch to center, so centerLatLng is delta applied to initial pinchLatLng
+ var delta = p1._add(p2)._divideBy(2)._subtract(this._centerPoint);
+ if (scale === 1 && delta.x === 0 && delta.y === 0) { return; }
+ this._center = map.unproject(map.project(this._pinchStartLatLng, this._zoom).subtract(delta), this._zoom);
}
- this._handlingClick = false;
+ if (!this._moved) {
+ map._moveStart(true, false);
+ this._moved = true;
+ }
- this._refocusOnMap();
- },
+ cancelAnimFrame(this._animRequest);
- _checkDisabledLayers: function () {
- var inputs = this._form.getElementsByTagName('input'),
- input,
- layer,
- zoom = this._map.getZoom();
+ var moveFn = bind(map._move, map, this._center, this._zoom, {pinch: true, round: false});
+ this._animRequest = requestAnimFrame(moveFn, this, true);
- for (var i = inputs.length - 1; i >= 0; i--) {
- input = inputs[i];
- layer = this._getLayer(input.layerId).layer;
- input.disabled = (layer.options.minZoom !== undefined && zoom < layer.options.minZoom) ||
- (layer.options.maxZoom !== undefined && zoom > layer.options.maxZoom);
+ preventDefault(e);
+ },
+ _onTouchEnd: function () {
+ if (!this._moved || !this._zooming) {
+ this._zooming = false;
+ return;
}
- },
- _expand: function () {
- // Backward compatibility, remove me in 1.1.
- return this.expand();
- },
+ this._zooming = false;
+ cancelAnimFrame(this._animRequest);
- _collapse: function () {
- // Backward compatibility, remove me in 1.1.
- return this.collapse();
- }
+ off(document, 'touchmove', this._onTouchMove);
+ off(document, 'touchend', this._onTouchEnd);
+ // Pinch updates GridLayers' levels only when zoomSnap is off, so zoomSnap becomes noUpdate.
+ if (this._map.options.zoomAnimation) {
+ this._map._animateZoom(this._center, this._map._limitZoom(this._zoom), true, this._map.options.zoomSnap);
+ } else {
+ this._map._resetView(this._center, this._map._limitZoom(this._zoom));
+ }
+ }
});
+// @section Handlers
+// @property touchZoom: Handler
+// Touch zoom handler.
+Map.addInitHook('addHandler', 'touchZoom', TouchZoom);
+
+Map.BoxZoom = BoxZoom;
+Map.DoubleClickZoom = DoubleClickZoom;
+Map.Drag = Drag;
+Map.Keyboard = Keyboard;
+Map.ScrollWheelZoom = ScrollWheelZoom;
+Map.Tap = Tap;
+Map.TouchZoom = TouchZoom;
+
+Object.freeze = freeze;
+
+exports.version = version;
+exports.Control = Control;
+exports.control = control;
+exports.Browser = Browser;
+exports.Evented = Evented;
+exports.Mixin = Mixin;
+exports.Util = Util;
+exports.Class = Class;
+exports.Handler = Handler;
+exports.extend = extend;
+exports.bind = bind;
+exports.stamp = stamp;
+exports.setOptions = setOptions;
+exports.DomEvent = DomEvent;
+exports.DomUtil = DomUtil;
+exports.PosAnimation = PosAnimation;
+exports.Draggable = Draggable;
+exports.LineUtil = LineUtil;
+exports.PolyUtil = PolyUtil;
+exports.Point = Point;
+exports.point = toPoint;
+exports.Bounds = Bounds;
+exports.bounds = toBounds;
+exports.Transformation = Transformation;
+exports.transformation = toTransformation;
+exports.Projection = index;
+exports.LatLng = LatLng;
+exports.latLng = toLatLng;
+exports.LatLngBounds = LatLngBounds;
+exports.latLngBounds = toLatLngBounds;
+exports.CRS = CRS;
+exports.GeoJSON = GeoJSON;
+exports.geoJSON = geoJSON;
+exports.geoJson = geoJson;
+exports.Layer = Layer;
+exports.LayerGroup = LayerGroup;
+exports.layerGroup = layerGroup;
+exports.FeatureGroup = FeatureGroup;
+exports.featureGroup = featureGroup;
+exports.ImageOverlay = ImageOverlay;
+exports.imageOverlay = imageOverlay;
+exports.VideoOverlay = VideoOverlay;
+exports.videoOverlay = videoOverlay;
+exports.SVGOverlay = SVGOverlay;
+exports.svgOverlay = svgOverlay;
+exports.DivOverlay = DivOverlay;
+exports.Popup = Popup;
+exports.popup = popup;
+exports.Tooltip = Tooltip;
+exports.tooltip = tooltip;
+exports.Icon = Icon;
+exports.icon = icon;
+exports.DivIcon = DivIcon;
+exports.divIcon = divIcon;
+exports.Marker = Marker;
+exports.marker = marker;
+exports.TileLayer = TileLayer;
+exports.tileLayer = tileLayer;
+exports.GridLayer = GridLayer;
+exports.gridLayer = gridLayer;
+exports.SVG = SVG;
+exports.svg = svg$1;
+exports.Renderer = Renderer;
+exports.Canvas = Canvas;
+exports.canvas = canvas$1;
+exports.Path = Path;
+exports.CircleMarker = CircleMarker;
+exports.circleMarker = circleMarker;
+exports.Circle = Circle;
+exports.circle = circle;
+exports.Polyline = Polyline;
+exports.polyline = polyline;
+exports.Polygon = Polygon;
+exports.polygon = polygon;
+exports.Rectangle = Rectangle;
+exports.rectangle = rectangle;
+exports.Map = Map;
+exports.map = createMap;
+
+var oldL = window.L;
+exports.noConflict = function() {
+ window.L = oldL;
+ return this;
+}
-// @factory L.control.layers(baselayers?: Object, overlays?: Object, options?: Control.Layers options)
-// Creates an attribution control with the given layers. Base layers will be switched with radio buttons, while overlays will be switched with checkboxes. Note that all base layers should be passed in the base layers object, but only one should be added to the map during map instantiation.
-L.control.layers = function (baseLayers, overlays, options) {
- return new L.Control.Layers(baseLayers, overlays, options);
-};
-
-
+// Always export us to window global (see #2364)
+window.L = exports;
-}(window, document));
-//# sourceMappingURL=leaflet-src.map
\ No newline at end of file
+})));
+//# sourceMappingURL=leaflet-src.js.map
projects / rails.git / blobdiff