-/*
- Leaflet 1.0.2, 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: "1.0.2"
-};
-
-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 1.3.4, a JS library for interactive maps. http://leafletjs.com
+ * (c) 2010-2018 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 = "1.3.4";
/*
* @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);
}
} 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);
}
listeners.push(newListener);
- typeListeners.count++;
},
_off: function (type, 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).
- 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
- // Returns a new `LatLngBounds` object in which each boundary is `sizeInMeters` meters apart from the `LatLng`.
+ // Returns a new `LatLngBounds` object in which each boundary is `sizeInMeters/2` meters apart from the `LatLng`.
toBounds: function (sizeInMeters) {
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) {
- 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 SphericalMercator = {
R: 6378137,
MAX_LATITUDE: 85.0511287798,
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]);
+ 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);
- },
+// 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;
+}
- // @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);
-
- return this.projection.unproject(untransformedPoint);
- },
-
- // @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);
- },
-
- // @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 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);
- },
-
- // @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;
+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 getProjectedBounds(zoom: Number): Bounds
- // Returns the projection's bounds scaled and transformed for the provided `zoom`.
- getProjectedBounds: function (zoom) {
- if (this.infinite) { return null; }
-
- var b = this.projection.bounds,
- s = this.scale(zoom),
- min = this.transformation.transform(b.min, s),
- max = this.transformation.transform(b.max, s);
-
- return L.bounds(min, max);
+ // 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 distance(latlng1: LatLng, latlng2: LatLng): Number
- // Returns the distance between two geographical coordinates.
-
- // @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.
-
- // wrapLng: [min, max],
- // wrapLat: [min, max],
-
- // @property infinite: Boolean
- // If true, the coordinate space will be unbounded (infinite in both axes)
- infinite: false,
-
- // @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 ? 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;
-
- return L.latLng(lat, lng, alt);
+ // @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);
}
};
+// factory L.transformation(a: Number, b: Number, c: Number, d: Number)
+// @factory L.transformation(a: Number, b: Number, c: Number, d: Number)
+// Instantiates a Transformation object with the given coefficients.
-/*
- * @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.CRS.Simple = L.extend({}, L.CRS, {
- projection: L.Projection.LonLat,
- transformation: new L.Transformation(1, 0, -1, 0),
-
- scale: function (zoom) {
- return Math.pow(2, zoom);
- },
-
- zoom: function (scale) {
- return Math.log(scale) / Math.LN2;
- },
-
- distance: function (latlng1, latlng2) {
- var dx = latlng2.lng - latlng1.lng,
- dy = latlng2.lat - latlng1.lat;
-
- return Math.sqrt(dx * dx + dy * dy);
- },
-
- infinite: true
-});
-
-
-
-/*
- * @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.
- */
-
-L.CRS.Earth = L.extend({}, L.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,
- a = Math.sin(lat1) * Math.sin(lat2) +
- Math.cos(lat1) * Math.cos(lat2) * Math.cos((latlng2.lng - latlng1.lng) * rad);
-
- return this.R * Math.acos(Math.min(a, 1));
- }
-});
-
+// @alternative
+// @factory L.transformation(coefficients: Array): Transformation
+// Expects an coefficients array of the form
+// `[a: Number, b: Number, c: Number, d: Number]`.
+function toTransformation(a, b, c, d) {
+ return new Transformation(a, b, c, d);
+}
/*
* @namespace CRS
* Map's `crs` option.
*/
-L.CRS.EPSG3857 = L.extend({}, L.CRS.Earth, {
+var EPSG3857 = extend({}, Earth, {
code: 'EPSG:3857',
- projection: L.Projection.SphericalMercator,
+ projection: SphericalMercator,
transformation: (function () {
- var scale = 0.5 / (Math.PI * L.Projection.SphericalMercator.R);
- return new L.Transformation(scale, 0.5, -scale, 0.5);
+ var scale = 0.5 / (Math.PI * SphericalMercator.R);
+ return toTransformation(scale, 0.5, -scale, 0.5);
}())
});
-L.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, {
+var EPSG900913 = extend({}, EPSG3857, {
code: 'EPSG:900913'
});
+// @namespace SVG; @section
+// There are several static functions which can be called without instantiating 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).
+function svgCreate(name) {
+ return document.createElementNS('http://www.w3.org/2000/svg', name);
+}
-/*
- * @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.
- */
+// @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;
-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)
-});
+ for (i = 0, len = rings.length; i < len; i++) {
+ points = rings[i];
+ for (j = 0, len2 = points.length; j < len2; j++) {
+ p = points[j];
+ str += (j ? 'L' : 'M') + p.x + ' ' + p.y;
+ }
+
+ // closes the ring for polygons; "x" is VML syntax
+ str += closed ? (svg ? 'z' : 'x') : '';
+ }
+ // SVG complains about empty path strings
+ return str || 'M0 0';
+}
/*
- * @class Map
- * @aka L.Map
- * @inherits Evented
+ * @namespace Browser
+ * @aka L.Browser
*
- * The central class of the API — it is used to create a map on a page and manipulate it.
+ * A namespace with static properties for browser/feature detection used by Leaflet internally.
*
* @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
- * });
+ * if (L.Browser.ielt9) {
+ * alert('Upgrade your browser, dude!');
+ * }
* ```
- *
*/
-L.Map = L.Evented.extend({
+var style$1 = document.documentElement.style;
- 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 ie: Boolean; `true` for all Internet Explorer versions (not Edge).
+var ie = 'ActiveXObject' in window;
- // @option center: LatLng = undefined
- // Initial geographic center of the map
- center: undefined,
+// @property ielt9: Boolean; `true` for Internet Explorer versions less than 9.
+var ielt9 = ie && !document.addEventListener;
- // @option zoom: Number = undefined
- // Initial map zoom level
- zoom: undefined,
+// @property edge: Boolean; `true` for the Edge web browser.
+var edge = 'msLaunchUri' in navigator && !('documentMode' in document);
- // @option minZoom: Number = undefined
- // Minimum zoom level of the map. Overrides any `minZoom` option set on map layers.
- minZoom: undefined,
+// @property webkit: Boolean;
+// `true` for webkit-based browsers like Chrome and Safari (including mobile versions).
+var webkit = userAgentContains('webkit');
- // @option maxZoom: Number = undefined
- // Maximum zoom level of the map. Overrides any `maxZoom` option set on map layers.
- maxZoom: undefined,
+// @property android: Boolean
+// `true` for any browser running on an Android platform.
+var android = userAgentContains('android');
- // @option layers: Layer[] = []
- // Array of layers that will be added to the map initially
- layers: [],
+// @property android23: Boolean; `true` for browsers running on Android 2 or Android 3.
+var android23 = userAgentContains('android 2') || userAgentContains('android 3');
- // @option maxBounds: LatLngBounds = null
- // When this option is set, the map restricts the view to the given
- // geographical bounds, bouncing the user back when he tries to pan
- // outside the view. To set the restriction dynamically, use
- // [`setMaxBounds`](#map-setmaxbounds) method.
- maxBounds: undefined,
+/* 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);
- // @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,
+// @property opera: Boolean; `true` for the Opera browser
+var opera = !!window.opera;
+// @property chrome: Boolean; `true` for the Chrome browser.
+var chrome = userAgentContains('chrome');
- // @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,
+// @property gecko: Boolean; `true` for gecko-based browsers like Firefox.
+var gecko = userAgentContains('gecko') && !webkit && !opera && !ie;
- // @option zoomAnimationThreshold: Number = 4
- // Won't animate zoom if the zoom difference exceeds this value.
- zoomAnimationThreshold: 4,
+// @property safari: Boolean; `true` for the Safari browser.
+var safari = !chrome && userAgentContains('safari');
- // @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 phantom = userAgentContains('phantom');
- // @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,
+// @property opera12: Boolean
+// `true` for the Opera browser supporting CSS transforms (version 12 or later).
+var opera12 = 'OTransition' in style$1;
- // @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
+// @property win: Boolean; `true` when the browser is running in a Windows platform
+var win = navigator.platform.indexOf('Win') === 0;
- // @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,
+// @property ie3d: Boolean; `true` for all Internet Explorer versions supporting CSS transforms.
+var ie3d = ie && ('transition' in style$1);
- // @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,
+// @property webkit3d: Boolean; `true` for webkit-based browsers supporting CSS transforms.
+var webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23;
- // @option trackResize: Boolean = true
- // Whether the map automatically handles browser window resize to update itself.
- trackResize: true
- },
+// @property gecko3d: Boolean; `true` for gecko-based browsers supporting CSS transforms.
+var gecko3d = 'MozPerspective' in style$1;
- initialize: function (id, options) { // (HTMLElement or String, Object)
- options = L.setOptions(this, options);
+// @property any3d: Boolean
+// `true` for all browsers supporting CSS transforms.
+var any3d = !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d) && !opera12 && !phantom;
- this._initContainer(id);
- this._initLayout();
+// @property mobile: Boolean; `true` for all browsers running in a mobile device.
+var mobile = typeof orientation !== 'undefined' || userAgentContains('mobile');
- // hack for https://github.com/Leaflet/Leaflet/issues/1980
- this._onResize = L.bind(this._onResize, this);
+// @property mobileWebkit: Boolean; `true` for all webkit-based browsers in a mobile device.
+var mobileWebkit = mobile && webkit;
- this._initEvents();
+// @property mobileWebkit3d: Boolean
+// `true` for all webkit-based browsers in a mobile device supporting CSS transforms.
+var mobileWebkit3d = mobile && webkit3d;
- if (options.maxBounds) {
- this.setMaxBounds(options.maxBounds);
- }
+// @property msPointer: Boolean
+// `true` for browsers implementing the Microsoft touch events model (notably IE10).
+var msPointer = !window.PointerEvent && window.MSPointerEvent;
- if (options.zoom !== undefined) {
- this._zoom = this._limitZoom(options.zoom);
- }
+// @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 = !!(window.PointerEvent || msPointer);
- if (options.center && options.zoom !== undefined) {
- this.setView(L.latLng(options.center), options.zoom, {reset: true});
- }
+// @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));
- this._handlers = [];
- this._layers = {};
- this._zoomBoundLayers = {};
- this._sizeChanged = true;
+// @property mobileOpera: Boolean; `true` for the Opera browser in a mobile device.
+var mobileOpera = mobile && opera;
- this.callInitHooks();
+// @property mobileGecko: Boolean
+// `true` for gecko-based browsers running in a mobile device.
+var mobileGecko = mobile && gecko;
- // 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;
+// @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;
- // 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);
- }
- this._addLayers(this.options.layers);
- },
+// @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;
+}());
+// @property svg: Boolean
+// `true` when the browser supports [SVG](https://developer.mozilla.org/docs/Web/SVG).
+var svg = !!(document.createElementNS && svgCreate('svg').createSVGRect);
- // @section Methods for modifying map state
+// @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"/>';
- // @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) {
+ var shape = div.firstChild;
+ shape.style.behavior = 'url(#default#VML)';
- zoom = zoom === undefined ? this._zoom : this._limitZoom(zoom);
- center = this._limitCenter(L.latLng(center), zoom, this.options.maxBounds);
- options = options || {};
+ return shape && (typeof shape.adj === 'object');
- this._stop();
+ } catch (e) {
+ return false;
+ }
+}());
- if (this._loaded && !options.reset && options !== true) {
- if (options.animate !== undefined) {
- options.zoom = L.extend({animate: options.animate}, options.zoom);
- options.pan = L.extend({animate: options.animate, duration: options.duration}, options.pan);
- }
+function userAgentContains(str) {
+ return navigator.userAgent.toLowerCase().indexOf(str) >= 0;
+}
- // try animating pan or zoom
- var moved = (this._zoom !== zoom) ?
- this._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) :
- this._tryAnimatedPan(center, options.pan);
- if (moved) {
- // prevent resize handler call, the view will refresh after animation anyway
- clearTimeout(this._sizeTimer);
- return this;
- }
- }
+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,
+ canvas: canvas,
+ svg: svg,
+ vml: vml
+});
- // animation didn't start, just reset the map view
- this._resetView(center, zoom);
+/*
+ * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices.
+ */
- return this;
- },
- // @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});
- },
+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'];
- // @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);
- },
+var _pointers = {};
+var _pointerDocListener = 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);
- },
+// DomEvent.DoubleTap needs to know about this
+var _pointersCount = 0;
- // @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),
+// 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
- centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale),
- newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset));
+function addPointerListener(obj, type, handler, id) {
+ if (type === 'touchstart') {
+ _addPointerStart(obj, handler, id);
- return this.setView(newCenter, zoom, {zoom: options});
- },
+ } else if (type === 'touchmove') {
+ _addPointerMove(obj, handler, id);
- _getBoundsCenterZoom: function (bounds, options) {
+ } else if (type === 'touchend') {
+ _addPointerEnd(obj, handler, id);
+ }
- options = options || {};
- bounds = bounds.getBounds ? bounds.getBounds() : L.latLngBounds(bounds);
+ return this;
+}
- var paddingTL = L.point(options.paddingTopLeft || options.padding || [0, 0]),
- paddingBR = L.point(options.paddingBottomRight || options.padding || [0, 0]),
+function removePointerListener(obj, type, id) {
+ var handler = obj['_leaflet_' + type + id];
- zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR));
+ if (type === 'touchstart') {
+ obj.removeEventListener(POINTER_DOWN, handler, false);
- zoom = (typeof options.maxZoom === 'number') ? Math.min(options.maxZoom, zoom) : zoom;
+ } else if (type === 'touchmove') {
+ obj.removeEventListener(POINTER_MOVE, handler, false);
- var paddingOffset = paddingBR.subtract(paddingTL).divideBy(2),
+ } else if (type === 'touchend') {
+ obj.removeEventListener(POINTER_UP, handler, false);
+ obj.removeEventListener(POINTER_CANCEL, handler, false);
+ }
- swPoint = this.project(bounds.getSouthWest(), zoom),
- nePoint = this.project(bounds.getNorthEast(), zoom),
- center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom);
+ return this;
+}
- return {
- center: center,
- zoom: zoom
- };
- },
+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;
+ }
+ }
- // @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) {
+ _handlePointer(e, handler);
+ });
- bounds = L.latLngBounds(bounds);
+ obj['_leaflet_touchstart' + id] = onDown;
+ obj.addEventListener(POINTER_DOWN, onDown, false);
- if (!bounds.isValid()) {
- throw new Error('Bounds are not valid.');
- }
+ // 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);
- var target = this._getBoundsCenterZoom(bounds, options);
- return this.setView(target.center, target.zoom, options);
- },
+ _pointerDocListener = true;
+ }
+}
- // @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);
- },
+function _globalPointerDown(e) {
+ _pointers[e.pointerId] = e;
+ _pointersCount++;
+}
- // @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});
- },
+function _globalPointerMove(e) {
+ if (_pointers[e.pointerId]) {
+ _pointers[e.pointerId] = e;
+ }
+}
- // @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 || {};
+function _globalPointerUp(e) {
+ delete _pointers[e.pointerId];
+ _pointersCount--;
+}
- 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;
- }
+function _handlePointer(e, handler) {
+ e.touches = [];
+ for (var i in _pointers) {
+ e.touches.push(_pointers[i]);
+ }
+ e.changedTouches = [e];
- if (!this._panAnim) {
- this._panAnim = new L.PosAnimation();
+ handler(e);
+}
- this._panAnim.on({
- 'step': this._onPanTransitionStep,
- 'end': this._onPanTransitionEnd
- }, 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; }
- // don't fire movestart if animating inertia
- if (!options.noMoveStart) {
- this.fire('movestart');
- }
+ _handlePointer(e, handler);
+ };
- // animate pan unless animate: false specified
- if (options.animate !== false) {
- L.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim');
+ obj['_leaflet_touchmove' + id] = onMove;
+ obj.addEventListener(POINTER_MOVE, onMove, false);
+}
- var newPos = this._getMapPanePos().subtract(offset).round();
- this._panAnim.run(this._mapPane, newPos, options.duration || 0.25, options.easeLinearity);
+function _addPointerEnd(obj, handler, id) {
+ var onUp = function (e) {
+ _handlePointer(e, handler);
+ };
+
+ obj['_leaflet_touchend' + id] = onUp;
+ obj.addEventListener(POINTER_UP, onUp, false);
+ obj.addEventListener(POINTER_CANCEL, onUp, false);
+}
+
+/*
+ * Extends the event handling code with double tap support for mobile browsers.
+ */
+
+var _touchstart = msPointer ? 'MSPointerDown' : pointer ? 'pointerdown' : 'touchstart';
+var _touchend = msPointer ? 'MSPointerUp' : pointer ? 'pointerup' : 'touchend';
+var _pre = '_leaflet_';
+
+// inspired by Zepto touch code by Thomas Fuchs
+function addDoubleTapListener(obj, handler, id) {
+ var last, touch$$1,
+ doubleTap = false,
+ delay = 250;
+
+ function onTouchStart(e) {
+ var count;
+
+ if (pointer) {
+ if ((!edge) || e.pointerType === 'mouse') { return; }
+ count = _pointersCount;
} else {
- this._rawPanBy(offset);
- this.fire('move').fire('moveend');
+ count = e.touches.length;
}
- return this;
- },
+ if (count > 1) { return; }
- // @method flyTo(latlng: LatLng, zoom?: Number, options?: Zoom/pan options): this
- // Sets the view of the map (geographical center and zoom) performing a smooth
- // pan-zoom animation.
- flyTo: function (targetCenter, targetZoom, options) {
+ var now = Date.now(),
+ delta = now - (last || now);
- options = options || {};
- if (options.animate === false || !L.Browser.any3d) {
- return this.setView(targetCenter, targetZoom, options);
+ touch$$1 = e.touches ? e.touches[0] : e;
+ doubleTap = (delta > 0 && delta <= delay);
+ last = now;
+ }
+
+ 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';
+ handler(touch$$1);
+ last = null;
}
+ }
- this._stop();
+ obj[_pre + _touchstart + id] = onTouchStart;
+ obj[_pre + _touchend + id] = onTouchEnd;
+ obj[_pre + 'dblclick' + id] = handler;
- var from = this.project(this.getCenter()),
- to = this.project(targetCenter),
- size = this.getSize(),
- startZoom = this._zoom;
+ obj.addEventListener(_touchstart, onTouchStart, false);
+ obj.addEventListener(_touchend, onTouchEnd, false);
- targetCenter = L.latLng(targetCenter);
- targetZoom = targetZoom === undefined ? startZoom : targetZoom;
+ // 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);
- 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;
+ return this;
+}
- 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 removeDoubleTapListener(obj, id) {
+ var touchstart = obj[_pre + _touchstart + id],
+ touchend = obj[_pre + _touchend + id],
+ dblclick = obj[_pre + 'dblclick' + id];
- // 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);
+ obj.removeEventListener(_touchstart, touchstart, false);
+ obj.removeEventListener(_touchend, touchend, false);
+ if (!edge) {
+ obj.removeEventListener('dblclick', dblclick, false);
+ }
- 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); }
+/*
+ * @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.
+ */
- var r0 = r(0);
- function w(s) { return w0 * (cosh(r0) / cosh(r0 + rho * s)); }
- function u(s) { return w0 * (cosh(r0) * tanh(r0 + rho * s) - sinh(r0)) / rho2; }
+// @property TRANSFORM: String
+// Vendor-prefixed transform style name (e.g. `'webkitTransform'` for WebKit).
+var TRANSFORM = testProp(
+ ['transform', 'webkitTransform', 'OTransform', 'MozTransform', 'msTransform']);
- function easeOut(t) { return 1 - Math.pow(1 - t, 1.5); }
+// webkitTransition comes first because some browser versions that drop vendor prefix don't do
+// the same for the transitionend event, in particular the Android 4.1 stock browser
- var start = Date.now(),
- S = (r(1) - r0) / rho,
- duration = options.duration ? 1000 * options.duration : 1000 * S * 0.8;
+// @property TRANSITION: String
+// Vendor-prefixed transition style name.
+var TRANSITION = testProp(
+ ['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']);
- function frame() {
- var t = (Date.now() - start) / duration,
- s = easeOut(t) * S;
+// @property TRANSITION_END: String
+// Vendor-prefixed transitionend event name.
+var TRANSITION_END =
+ TRANSITION === 'webkitTransition' || TRANSITION === 'OTransition' ? TRANSITION + 'End' : 'transitionend';
- if (t <= 1) {
- this._flyToFrame = L.Util.requestAnimFrame(frame, this);
- this._move(
- this.unproject(from.add(to.subtract(from).multiplyBy(u(s) / u1)), startZoom),
- this.getScaleZoom(w0 / w(s), startZoom),
- {flyTo: true});
+// @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;
+}
- } else {
- this
- ._move(targetCenter, targetZoom)
- ._moveEnd(true);
- }
- }
+// @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]);
- this._moveStart(true);
+ if ((!value || value === 'auto') && document.defaultView) {
+ var css = document.defaultView.getComputedStyle(el, null);
+ value = css ? css[style] : null;
+ }
+ return value === 'auto' ? null : value;
+}
- frame.call(this);
- return this;
- },
+// @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 || '';
- // @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);
- },
+ if (container) {
+ container.appendChild(el);
+ }
+ return el;
+}
- // @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);
+// @function remove(el: HTMLElement)
+// Removes `el` from its parent element
+function remove(el) {
+ var parent = el.parentNode;
+ if (parent) {
+ parent.removeChild(el);
+ }
+}
- if (!bounds.isValid()) {
- this.options.maxBounds = null;
- return this.off('moveend', this._panInsideMaxBounds);
- } else if (this.options.maxBounds) {
- this.off('moveend', this._panInsideMaxBounds);
- }
+// @function empty(el: HTMLElement)
+// Removes all of `el`'s children elements from `el`
+function empty(el) {
+ while (el.firstChild) {
+ el.removeChild(el.firstChild);
+ }
+}
- this.options.maxBounds = bounds;
+// @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.lastChild !== el) {
+ parent.appendChild(el);
+ }
+}
- if (this._loaded) {
- this._panInsideMaxBounds();
- }
+// @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.firstChild !== el) {
+ parent.insertBefore(el, parent.firstChild);
+ }
+}
- return this.on('moveend', this._panInsideMaxBounds);
- },
+// @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);
+}
- // @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 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);
+ }
+}
- if (this._loaded && this.getZoom() < this.options.minZoom) {
- return this.setZoom(zoom);
- }
+// @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 + ' ', ' ')));
+ }
+}
- return this;
- },
+// @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;
+ }
+}
- // @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 getClass(el: HTMLElement): String
+// Returns the element's class.
+function getClass(el) {
+ return el.className.baseVal === undefined ? el.className : el.className.baseVal;
+}
- if (this._loaded && (this.getZoom() > this.options.maxZoom)) {
- return this.setZoom(zoom);
- }
+// @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);
+ }
+}
- return this;
- },
+function _setOpacityIE(el, value) {
+ var filter = false,
+ filterName = 'DXImageTransform.Microsoft.Alpha';
- // @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));
+ // 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; }
+ }
- if (!center.equals(newCenter)) {
- this.panTo(newCenter, options);
- }
+ value = Math.round(value * 100);
- this._enforcingBounds = false;
- return this;
- },
+ if (filter) {
+ filter.Enabled = (value !== 100);
+ filter.Opacity = value;
+ } else {
+ el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')';
+ }
+}
- // @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.
+// @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;
- // @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; }
+ for (var i = 0; i < props.length; i++) {
+ if (props[i] in style) {
+ return props[i];
+ }
+ }
+ return false;
+}
- options = L.extend({
- animate: false,
- pan: true
- }, options === true ? {animate: true} : options);
+// @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 + ')' : '');
+}
- var oldSize = this.getSize();
- this._sizeChanged = true;
- this._lastCenter = null;
+// @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) {
- var newSize = this.getSize(),
- oldCenter = oldSize.divideBy(2).round(),
- newCenter = newSize.divideBy(2).round(),
- offset = oldCenter.subtract(newCenter);
+ /*eslint-disable */
+ el._leaflet_pos = point;
+ /* eslint-enable */
- if (!offset.x && !offset.y) { return this; }
+ if (any3d) {
+ setTransform(el, point);
+ } else {
+ el.style.left = point.x + 'px';
+ el.style.top = point.y + 'px';
+ }
+}
- if (options.animate && options.pan) {
- this.panBy(offset);
+// @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
- } else {
- if (options.pan) {
- this._rawPanBy(offset);
- }
+ return el._leaflet_pos || new Point(0, 0);
+}
- this.fire('move');
+// @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']);
- if (options.debounceMoveend) {
- clearTimeout(this._sizeTimer);
- this._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200);
- } else {
- this.fire('moveend');
- }
+ 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;
}
+ };
+}
- // @section Map state change events
- // @event resize: ResizeEvent
- // Fired when the map is resized.
- return this.fire('resize', {
- oldSize: oldSize,
- newSize: newSize
- });
- },
+// @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);
+}
- // @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();
- },
+// @function enableImageDrag()
+// Cancels the effects of a previous [`L.DomUtil.disableImageDrag`](#domutil-disabletextselection).
+function enableImageDrag() {
+ off(window, 'dragstart', preventDefault);
+}
- // @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) {
+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);
+}
- options = this._locateOptions = L.extend({
- timeout: 10000,
- watch: false
- // setView: false
- // maxZoom: <Number>
- // maximumAge: 0
- // enableHighAccuracy: false
- }, options);
+// @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);
+}
- if (!('geolocation' in navigator)) {
- this._handleGeolocationError({
- code: 0,
- message: 'Geolocation not supported.'
- });
- return this;
- }
+// @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;
+}
- var onResponse = L.bind(this._handleGeolocationResponse, this),
- onError = L.bind(this._handleGeolocationError, this);
+// @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
+ };
+}
- if (options.watch) {
- this._locationWatchId =
- navigator.geolocation.watchPosition(onResponse, onError, options);
- } else {
- navigator.geolocation.getCurrentPosition(onResponse, onError, options);
- }
- return this;
- },
- // @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;
- },
+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
+});
- _handleGeolocationError: function (error) {
- var c = error.code,
- message = error.message ||
- (c === 1 ? 'permission denied' :
- (c === 2 ? 'position unavailable' : 'timeout'));
+/*
+ * @namespace DomEvent
+ * Utility functions to work with the [DOM events](https://developer.mozilla.org/docs/Web/API/Event), used by Leaflet internally.
+ */
- if (this._locateOptions.setView && !this._loaded) {
- this.fitWorld();
- }
+// Inspired by John Resig, Dean Edwards and YUI addEvent implementations.
- // @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 + '.'
- });
- },
+// @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'`).
- _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;
+// @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 (options.setView) {
- var zoom = this.getBoundsZoom(bounds);
- this.setView(latlng, options.maxZoom ? Math.min(zoom, options.maxZoom) : zoom);
+ if (typeof types === 'object') {
+ for (var type in types) {
+ addOne(obj, type, types[type], fn);
}
+ } else {
+ types = splitWords(types);
- var data = {
- latlng: latlng,
- bounds: bounds,
- timestamp: pos.timestamp
- };
-
- for (var i in pos.coords) {
- if (typeof pos.coords[i] === 'number') {
- data[i] = pos.coords[i];
- }
+ for (var i = 0, len = types.length; i < len; i++) {
+ addOne(obj, types[i], fn, context);
}
+ }
- // @event locationfound: LocationEvent
- // Fired when geolocation (using the [`locate`](#map-locate) method)
- // went successfully.
- this.fire('locationfound', data);
- },
+ 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; }
+var eventsKey = '_leaflet_events';
- var handler = this[name] = new HandlerClass(this);
+// @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.
- this._handlers.push(handler);
+// @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 (this.options[name]) {
- handler.enable();
+ if (typeof types === 'object') {
+ for (var type in types) {
+ removeOne(obj, type, types[type], fn);
}
+ } else if (types) {
+ types = splitWords(types);
- 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 remove(): this
- // Destroys the map and clears all related event listeners.
- remove: function () {
+ return this;
+}
- this._initEvents(true);
+function addOne(obj, type, fn, context) {
+ var id = type + stamp(fn) + (context ? '_' + stamp(context) : '');
- if (this._containerId !== this._container._leaflet_id) {
- throw new Error('Map container is being reused by another instance');
- }
+ if (obj[eventsKey] && obj[eventsKey][id]) { return this; }
- 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;
- }
+ var handler = function (e) {
+ return fn.call(context || obj, e || window.event);
+ };
- L.DomUtil.remove(this._mapPane);
+ var originalHandler = handler;
- if (this._clearControlPos) {
- this._clearControlPos();
- }
+ if (pointer && type.indexOf('touch') === 0) {
+ // Needs DomEvent.Pointer.js
+ addPointerListener(obj, type, handler, id);
- this._clearHandlers();
+ } else if (touch && (type === 'dblclick') && addDoubleTapListener &&
+ !(pointer && chrome)) {
+ // Chrome >55 does not need the synthetic dblclicks from addDoubleTapListener
+ // See #5180
+ addDoubleTapListener(obj, handler, id);
- 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');
- }
+ } else if ('addEventListener' in obj) {
- for (var i in this._layers) {
- this._layers[i].remove();
+ if (type === 'mousewheel') {
+ obj.addEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false);
+
+ } 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);
}
- return this;
- },
+ } else if ('attachEvent' in obj) {
+ obj.attachEvent('on' + type, handler);
+ }
- // @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);
+ obj[eventsKey] = obj[eventsKey] || {};
+ obj[eventsKey][id] = handler;
+}
- if (name) {
- this._panes[name] = pane;
- }
- return pane;
- },
+function removeOne(obj, type, fn, context) {
- // @section Methods for Getting Map State
+ var id = type + stamp(fn) + (context ? '_' + stamp(context) : ''),
+ handler = obj[eventsKey] && obj[eventsKey][id];
- // @method getCenter(): LatLng
- // Returns the geographical center of the map view
- getCenter: function () {
- this._checkIfLoaded();
+ if (!handler) { return this; }
- if (this._lastCenter && !this._moved()) {
- return this._lastCenter;
+ if (pointer && type.indexOf('touch') === 0) {
+ removePointerListener(obj, type, id);
+
+ } else if (touch && (type === 'dblclick') && removeDoubleTapListener &&
+ !(pointer && chrome)) {
+ removeDoubleTapListener(obj, id);
+
+ } else if ('removeEventListener' in obj) {
+
+ if (type === 'mousewheel') {
+ obj.removeEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false);
+
+ } else {
+ obj.removeEventListener(
+ type === 'mouseenter' ? 'mouseover' :
+ type === 'mouseleave' ? 'mouseout' : type, handler, false);
}
- return this.layerPointToLatLng(this._getCenterLayerPoint());
- },
- // @method getZoom(): Number
- // Returns the current zoom level of the map view
- getZoom: function () {
- return this._zoom;
- },
+ } else if ('detachEvent' in obj) {
+ obj.detachEvent('on' + type, handler);
+ }
- // @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());
+ obj[eventsKey][id] = null;
+}
- return new L.LatLngBounds(sw, ne);
- },
+// @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) {
- // @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;
- },
+ if (e.stopPropagation) {
+ e.stopPropagation();
+ } else if (e.originalEvent) { // In case of Leaflet event.
+ e.originalEvent._stopped = true;
+ } else {
+ e.cancelBubble = true;
+ }
+ skipped(e);
- // @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;
- },
+ return this;
+}
- // @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]);
+// @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;
+}
- var zoom = this.getZoom() || 0,
- min = this.getMinZoom(),
- max = this.getMaxZoom(),
- nw = bounds.getNorthWest(),
- se = bounds.getSouthEast(),
- size = this.getSize().subtract(padding),
- boundsSize = this.project(se, zoom).subtract(this.project(nw, zoom)),
- snap = L.Browser.any3d ? this.options.zoomSnap : 1;
+// @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 scale = Math.min(size.x / boundsSize.x, size.y / boundsSize.y);
- zoom = this.getScaleZoom(scale, zoom);
+// @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;
+}
- 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;
- }
+// @function stop(ev: DOMEvent): this
+// Does `stopPropagation` and `preventDefault` at the same time.
+function stop(e) {
+ preventDefault(e);
+ stopPropagation(e);
+ return this;
+}
- return Math.max(min, Math.min(max, zoom));
- },
+// @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);
+ }
- // @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,
- this._container.clientHeight);
+ var scale = getScale(container),
+ offset = scale.boundingClientRect; // left and top values are in page scale (like the event clientX/Y)
- this._sizeChanged = false;
- }
- return this._size.clone();
- },
+ 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
+ );
+}
- // @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()));
- },
+// 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;
+}
- // 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;
- },
+var skipEvents = {};
- // @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);
- },
+function fakeStop(e) {
+ // fakes stopPropagation by setting a special event flag, checked/reset with skipped(e)
+ skipEvents[e.type] = true;
+}
- // @section Other Methods
+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;
+}
- // @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;
- },
+// check if element really left/entered the event target (for mouseenter/mouseleave)
+function isExternalTarget(el, e) {
- // @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;
- },
+ var related = e.relatedTarget;
- // @method getContainer: HTMLElement
- // Returns the HTML element that contains the map.
- getContainer: function () {
- return this._container;
- },
+ if (!related) { return true; }
+ try {
+ while (related && (related !== el)) {
+ related = related.parentNode;
+ }
+ } catch (err) {
+ return false;
+ }
+ return (related !== el);
+}
- // @section Conversion Methods
+var lastClick;
- // @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 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);
- // @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;
- },
+ // 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
- // @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);
- },
+ if ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) {
+ stop(e);
+ return;
+ }
+ lastClick = timeStamp;
- // @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);
- },
+ handler(e);
+}
- // @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);
- },
- // @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());
- },
- // @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));
- },
- // @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));
- },
+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 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());
- },
+/*
+ * @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 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());
- },
+var PosAnimation = Evented.extend({
- // @method containerPointToLatLng(point: Point): Point
- // 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);
- },
+ // @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();
- // @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)));
- },
+ this._el = el;
+ this._inProgress = true;
+ this._duration = duration || 0.25;
+ this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2);
- // @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);
- },
+ this._startPos = getPosition(el);
+ this._offset = newPos.subtract(this._startPos);
+ this._startTime = +new Date();
- // @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));
+ // @event start: Event
+ // Fired when the animation starts
+ this.fire('start');
+
+ this._animate();
},
- // @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));
+ // @method stop()
+ // Stops the animation (if currently running).
+ stop: function () {
+ if (!this._inProgress) { return; }
+
+ this._step(true);
+ this._complete();
},
+ _animate: function () {
+ // animation loop
+ this._animId = requestAnimFrame(this._animate, this);
+ this._step();
+ },
- // map initialization methods
+ _step: function (round) {
+ var elapsed = (+new Date()) - this._startTime,
+ duration = this._duration * 1000;
- _initContainer: function (id) {
- var container = this._container = L.DomUtil.get(id);
+ if (elapsed < duration) {
+ this._runFrame(this._easeOut(elapsed / duration), round);
+ } else {
+ this._runFrame(1);
+ this._complete();
+ }
+ },
- if (!container) {
- throw new Error('Map container not found.');
- } else if (container._leaflet_id) {
- throw new Error('Map container is already initialized.');
+ _runFrame: function (progress, round) {
+ var pos = this._startPos.add(this._offset.multiplyBy(progress));
+ if (round) {
+ pos._round();
}
+ setPosition(this._el, pos);
- L.DomEvent.addListener(container, 'scroll', this._onScroll, this);
- this._containerId = L.Util.stamp(container);
+ // @event step: Event
+ // Fired continuously during the animation.
+ this.fire('step');
},
- _initLayout: function () {
- var container = this._container;
+ _complete: function () {
+ cancelAnimFrame(this._animId);
- this._fadeAnimated = this.options.fadeAnimation && L.Browser.any3d;
+ this._inProgress = false;
+ // @event end: Event
+ // Fired when the animation ends.
+ this.fire('end');
+ },
- 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' : ''));
+ _easeOut: function (t) {
+ return 1 - Math.pow(1 - t, this._easeOutPower);
+ }
+});
- var position = L.DomUtil.getStyle(container, 'position');
+/*
+ * @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
+ * });
+ * ```
+ *
+ */
- if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') {
- container.style.position = 'relative';
- }
+var Map = Evented.extend({
- this._initPanes();
+ 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,
- if (this._initControlPos) {
- this._initControlPos();
- }
- },
+ // @option center: LatLng = undefined
+ // Initial geographic center of the map
+ center: undefined,
- _initPanes: function () {
- var panes = this._panes = {};
- this._paneRenderers = {};
+ // @option zoom: Number = undefined
+ // Initial map zoom level
+ zoom: undefined,
- // @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
+ // @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,
- this._mapPane = this.createPane('mapPane', this._container);
- L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));
+ // @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,
- // @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');
+ // @option layers: Layer[] = []
+ // Array of layers that will be added to the map initially
+ layers: [],
- if (!this.options.markerZoomAnimation) {
- L.DomUtil.addClass(panes.markerPane, 'leaflet-zoom-hide');
- L.DomUtil.addClass(panes.shadowPane, 'leaflet-zoom-hide');
- }
- },
+ // @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,
+ // @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,
- // 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 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,
- var loading = !this._loaded;
- this._loaded = true;
- zoom = this._limitZoom(zoom);
+ // @option zoomAnimationThreshold: Number = 4
+ // Won't animate zoom if the zoom difference exceeds this value.
+ zoomAnimationThreshold: 4,
- this.fire('viewprereset');
+ // @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 zoomChanged = this._zoom !== zoom;
- this
- ._moveStart(zoomChanged)
- ._move(center, zoom)
- ._moveEnd(zoomChanged);
+ // @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,
- // @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');
+ // @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
- // @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');
- }
- },
+ // @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,
- _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');
+ // @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,
+
+ // @option trackResize: Boolean = true
+ // Whether the map automatically handles browser window resize to update itself.
+ trackResize: true
},
- _move: function (center, zoom, data) {
- if (zoom === undefined) {
- zoom = this._zoom;
- }
- var zoomChanged = this._zoom !== zoom;
+ initialize: function (id, options) { // (HTMLElement or String, Object)
+ options = setOptions(this, options);
- this._zoom = zoom;
- this._lastCenter = center;
- this._pixelOrigin = this._getNewPixelOrigin(center);
+ this._initContainer(id);
+ this._initLayout();
- // @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);
- }
+ // hack for https://github.com/Leaflet/Leaflet/issues/1980
+ this._onResize = bind(this._onResize, this);
- // @event move: Event
- // Fired repeatedly during any movement of the map, including pan and
- // fly animations.
- return this.fire('move', data);
- },
+ this._initEvents();
- _moveEnd: function (zoomChanged) {
- // @event zoomend: Event
- // Fired when the map has changed, after any animations.
- if (zoomChanged) {
- this.fire('zoomend');
+ if (options.maxBounds) {
+ this.setMaxBounds(options.maxBounds);
}
- // @event moveend: Event
- // Fired when the center of the map stops changing (e.g. user stopped
- // dragging the map).
- return this.fire('moveend');
- },
+ if (options.zoom !== undefined) {
+ this._zoom = this._limitZoom(options.zoom);
+ }
- _stop: function () {
- L.Util.cancelAnimFrame(this._flyToFrame);
- if (this._panAnim) {
- this._panAnim.stop();
+ if (options.center && options.zoom !== undefined) {
+ this.setView(toLatLng(options.center), options.zoom, {reset: true});
}
- return this;
- },
- _rawPanBy: function (offset) {
- L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset));
- },
+ this._handlers = [];
+ this._layers = {};
+ this._zoomBoundLayers = {};
+ this._sizeChanged = true;
- _getZoomSpan: function () {
- return this.getMaxZoom() - this.getMinZoom();
- },
+ this.callInitHooks();
- _panInsideMaxBounds: function () {
- if (!this._enforcingBounds) {
- this.panInsideBounds(this.options.maxBounds);
- }
- },
+ // don't animate on browsers without hardware-accelerated transitions or old Android/Opera
+ this._zoomAnimated = TRANSITION && any3d && !mobileOpera &&
+ this.options.zoomAnimation;
- _checkIfLoaded: function () {
- if (!this._loaded) {
- throw new Error('Set map center and zoom first.');
+ // 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);
},
- // DOM event handling
- // @section Interaction events
- _initEvents: function (remove) {
- if (!L.DomEvent) { return; }
+ // @section Methods for modifying map state
- this._targets = {};
- this._targets[L.stamp(this._container)] = this;
+ // @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) {
- var onOff = remove ? 'off' : 'on';
+ zoom = zoom === undefined ? this._zoom : this._limitZoom(zoom);
+ center = this._limitCenter(toLatLng(center), zoom, this.options.maxBounds);
+ options = options || {};
- // @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);
+ this._stop();
- if (this.options.trackResize) {
- L.DomEvent[onOff](window, 'resize', this._onResize, this);
- }
+ if (this._loaded && !options.reset && options !== true) {
+
+ if (options.animate !== undefined) {
+ options.zoom = extend({animate: options.animate}, options.zoom);
+ options.pan = extend({animate: options.animate, duration: options.duration}, options.pan);
+ }
+
+ // try animating pan or zoom
+ var moved = (this._zoom !== zoom) ?
+ this._tryAnimatedZoom && this._tryAnimatedZoom(center, zoom, options.zoom) :
+ this._tryAnimatedPan(center, options.pan);
- if (L.Browser.any3d && this.options.transform3DLimit) {
- this[onOff]('moveend', this._onMoveEnd);
+ if (moved) {
+ // prevent resize handler call, the view will refresh after animation anyway
+ clearTimeout(this._sizeTimer);
+ return this;
+ }
}
- },
- _onResize: function () {
- L.Util.cancelAnimFrame(this._resizeRequest);
- this._resizeRequest = L.Util.requestAnimFrame(
- function () { this.invalidateSize({debounceMoveend: true}); }, this);
- },
+ // animation didn't start, just reset the map view
+ this._resetView(center, zoom);
- _onScroll: function () {
- this._container.scrollTop = 0;
- this._container.scrollLeft = 0;
+ return this;
},
- _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 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});
},
- _findEventTargets: function (e, type) {
- var targets = [],
- target,
- isHover = type === 'mouseout' || type === 'mouseover',
- src = e.target || e.srcElement,
- dragging = false;
-
- 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 (!targets.length && !dragging && !isHover && L.DomEvent._isExternalTarget(src, e)) {
- targets = [this];
- }
- return targets;
+ // @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);
},
- _handleDOMEvent: function (e) {
- if (!this._loaded || L.DomEvent._skipped(e)) { return; }
+ // @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);
+ },
- var type = e.type === 'keypress' && e.keyCode === 13 ? 'click' : e.type;
+ // @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),
- if (type === 'mousedown') {
- // prevents outline when clicking on keyboard-focusable element
- L.DomUtil.preventOutline(e.target || e.srcElement);
- }
+ centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale),
+ newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset));
- this._fireDOMEvent(e, type);
+ return this.setView(newCenter, zoom, {zoom: options});
},
- _fireDOMEvent: function (e, type, targets) {
+ _getBoundsCenterZoom: function (bounds, options) {
- 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);
- }
+ options = options || {};
+ bounds = bounds.getBounds ? bounds.getBounds() : toLatLngBounds(bounds);
- if (e._stopped) { return; }
+ var paddingTL = toPoint(options.paddingTopLeft || options.padding || [0, 0]),
+ paddingBR = toPoint(options.paddingBottomRight || options.padding || [0, 0]),
- // Find the layer the event is propagating from and its parents.
- targets = (targets || []).concat(this._findEventTargets(e, type));
+ zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR));
- if (!targets.length) { return; }
+ zoom = (typeof options.maxZoom === 'number') ? Math.min(options.maxZoom, zoom) : zoom;
- var target = targets[0];
- if (type === 'contextmenu' && target.listens(type, true)) {
- L.DomEvent.preventDefault(e);
+ if (zoom === Infinity) {
+ return {
+ center: bounds.getCenter(),
+ zoom: zoom
+ };
}
- var data = {
- originalEvent: e
- };
-
- 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 paddingOffset = paddingBR.subtract(paddingTL).divideBy(2),
- 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; }
- }
- },
+ swPoint = this.project(bounds.getSouthWest(), zoom),
+ nePoint = this.project(bounds.getNorthEast(), zoom),
+ center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom);
- _draggableMoved: function (obj) {
- obj = obj.dragging && obj.dragging.enabled() ? obj : this;
- return (obj.dragging && obj.dragging.moved()) || (this.boxZoom && this.boxZoom.moved());
+ return {
+ center: center,
+ zoom: zoom
+ };
},
- _clearHandlers: function () {
- for (var i = 0, len = this._handlers.length; i < len; i++) {
- this._handlers[i].disable();
- }
- },
+ // @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) {
- // @section Other Methods
+ bounds = toLatLngBounds(bounds);
- // @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);
+ if (!bounds.isValid()) {
+ throw new Error('Bounds are not valid.');
}
- return this;
- },
-
-
- // private methods for getting map state
- _getMapPanePos: function () {
- return L.DomUtil.getPosition(this._mapPane) || new L.Point(0, 0);
- },
-
- _moved: function () {
- var pos = this._getMapPanePos();
- return pos && !pos.equals([0, 0]);
- },
-
- _getTopLeftPoint: function (center, zoom) {
- var pixelOrigin = center && zoom !== undefined ?
- this._getNewPixelOrigin(center, zoom) :
- this.getPixelOrigin();
- return pixelOrigin.subtract(this._getMapPanePos());
+ var target = this._getBoundsCenterZoom(bounds, options);
+ return this.setView(target.center, target.zoom, options);
},
- _getNewPixelOrigin: function (center, zoom) {
- var viewHalf = this.getSize()._divideBy(2);
- return this.project(center, zoom)._subtract(viewHalf)._add(this._getMapPanePos())._round();
+ // @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);
},
- _latLngToNewLayerPoint: function (latlng, zoom, center) {
- var topLeft = this._getNewPixelOrigin(center, zoom);
- return this.project(latlng, zoom)._subtract(topLeft);
+ // @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});
},
- _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)
- ]);
- },
+ // @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 || {};
- // layer point of the current center
- _getCenterLayerPoint: function () {
- return this.containerPointToLayerPoint(this.getSize()._divideBy(2));
- },
+ 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;
+ }
- // offset of the specified place to the current center in pixels
- _getCenterOffset: function (latlng) {
- return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint());
- },
+ if (!this._panAnim) {
+ this._panAnim = new PosAnimation();
- // adjust center for view to get inside bounds
- _limitCenter: function (center, zoom, bounds) {
+ this._panAnim.on({
+ 'step': this._onPanTransitionStep,
+ 'end': this._onPanTransitionEnd
+ }, this);
+ }
- if (!bounds) { return center; }
+ // don't fire movestart if animating inertia
+ if (!options.noMoveStart) {
+ this.fire('movestart');
+ }
- 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);
+ // animate pan unless animate: false specified
+ if (options.animate !== false) {
+ addClass(this._mapPane, 'leaflet-pan-anim');
- // 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;
+ 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');
}
- return this.unproject(centerPoint.add(offset), zoom);
+ return this;
},
- // adjust offset for view to get inside bounds
- _limitOffset: function (offset, bounds) {
- if (!bounds) { return offset; }
-
- var viewBounds = this.getPixelBounds(),
- newBounds = new L.Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset));
+ // @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) {
- return offset.add(this._getBoundsOffset(newBounds, bounds));
- },
+ options = options || {};
+ if (options.animate === false || !any3d) {
+ return this.setView(targetCenter, targetZoom, options);
+ }
- // 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),
+ this._stop();
- dx = this._rebound(minOffset.x, -maxOffset.x),
- dy = this._rebound(minOffset.y, -maxOffset.y);
+ var from = this.project(this.getCenter()),
+ to = this.project(targetCenter),
+ size = this.getSize(),
+ startZoom = this._zoom;
- return new L.Point(dx, dy);
- },
+ targetCenter = toLatLng(targetCenter);
+ targetZoom = targetZoom === undefined ? startZoom : targetZoom;
- _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));
- },
+ 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;
- _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;
- }
- return Math.max(min, Math.min(max, zoom));
- },
+ 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;
- _onPanTransitionStep: function () {
- this.fire('move');
- },
+ // 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);
- _onPanTransitionEnd: function () {
- L.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim');
- this.fire('moveend');
- },
+ return log;
+ }
- _tryAnimatedPan: function (center, options) {
- // difference between the new and current centers in pixels
- var offset = this._getCenterOffset(center)._floor();
+ 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); }
- // don't animate too far unless animate: true specified in options
- if ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; }
+ var r0 = r(0);
- this.panBy(offset, options);
+ 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; }
- return true;
- },
+ function easeOut(t) { return 1 - Math.pow(1 - t, 1.5); }
- _createAnimProxy: function () {
+ var start = Date.now(),
+ S = (r(1) - r0) / rho,
+ duration = options.duration ? 1000 * options.duration : 1000 * S * 0.8;
- var proxy = this._proxy = L.DomUtil.create('div', 'leaflet-proxy leaflet-zoom-animated');
- this._panes.mapPane.appendChild(proxy);
+ function frame() {
+ var t = (Date.now() - start) / duration,
+ s = easeOut(t) * S;
- this.on('zoomanim', function (e) {
- var prop = L.DomUtil.TRANSFORM,
- transform = proxy.style[prop];
+ if (t <= 1) {
+ this._flyToFrame = requestAnimFrame(frame, this);
- L.DomUtil.setTransform(proxy, this.project(e.center, e.zoom), this.getZoomScale(e.zoom, 1));
+ this._move(
+ this.unproject(from.add(to.subtract(from).multiplyBy(u(s) / u1)), startZoom),
+ this.getScaleZoom(w0 / w(s), startZoom),
+ {flyTo: true});
- // workaround for case when transform is the same and so transitionend event is not fired
- if (transform === proxy.style[prop] && this._animatingZoom) {
- this._onZoomTransitionEnd();
+ } else {
+ this
+ ._move(targetCenter, targetZoom)
+ ._moveEnd(true);
}
- }, 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);
- },
+ this._moveStart(true, options.noMoveStart);
- _catchTransitionEnd: function (e) {
- if (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) {
- this._onZoomTransitionEnd();
- }
+ frame.call(this);
+ return this;
},
- _nothingToAnimate: function () {
- return !this._container.getElementsByClassName('leaflet-zoom-animated').length;
+ // @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);
},
- _tryAnimatedZoom: function (center, zoom, options) {
+ // @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 (this._animatingZoom) { return true; }
+ if (!bounds.isValid()) {
+ this.options.maxBounds = null;
+ return this.off('moveend', this._panInsideMaxBounds);
+ } else if (this.options.maxBounds) {
+ this.off('moveend', this._panInsideMaxBounds);
+ }
- options = options || {};
+ this.options.maxBounds = bounds;
- // 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 (this._loaded) {
+ this._panInsideMaxBounds();
+ }
- // 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);
+ return this.on('moveend', this._panInsideMaxBounds);
+ },
- // 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; }
+ // @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;
- L.Util.requestAnimFrame(function () {
- this
- ._moveStart(true)
- ._animateZoom(center, zoom, true);
- }, this);
+ if (this._loaded && oldZoom !== zoom) {
+ this.fire('zoomlevelschange');
- return true;
+ if (this.getZoom() < this.options.minZoom) {
+ return this.setZoom(zoom);
+ }
+ }
+
+ return this;
},
- _animateZoom: function (center, zoom, startAnim, noUpdate) {
- if (startAnim) {
- this._animatingZoom = true;
+ // @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;
- // remember what center/zoom to set after animation
- this._animateToCenter = center;
- this._animateToZoom = zoom;
+ if (this._loaded && oldZoom !== zoom) {
+ this.fire('zoomlevelschange');
- L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim');
+ if (this.getZoom() > this.options.maxZoom) {
+ return this.setZoom(zoom);
+ }
}
- // @event zoomanim: ZoomAnimEvent
- // Fired on every frame of a zoom animation
- this.fire('zoomanim', {
- center: center,
- zoom: zoom,
- noUpdate: noUpdate
- });
-
- // Work around webkit not firing 'transitionend', see https://github.com/Leaflet/Leaflet/issues/3689, 2693
- setTimeout(L.bind(this._onZoomTransitionEnd, this), 250);
+ return this;
},
- _onZoomTransitionEnd: function () {
- if (!this._animatingZoom) { return; }
-
- L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim');
+ // @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));
- this._animatingZoom = false;
+ if (!center.equals(newCenter)) {
+ this.panTo(newCenter, options);
+ }
- this._move(this._animateToCenter, this._animateToZoom);
+ this._enforcingBounds = false;
+ return this;
+ },
- // This anim frame should prevent an obscure iOS webkit tile loading race condition.
- L.Util.requestAnimFrame(function () {
- this._moveEnd(true);
- }, this);
- }
-});
+ // @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.
-// @section
+ // @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; }
-// @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);
-};
+ options = extend({
+ animate: false,
+ pan: true
+ }, options === true ? {animate: true} : options);
+ var oldSize = this.getSize();
+ this._sizeChanged = true;
+ this._lastCenter = null;
+ var newSize = this.getSize(),
+ oldCenter = oldSize.divideBy(2).round(),
+ newCenter = newSize.divideBy(2).round(),
+ offset = oldCenter.subtract(newCenter);
+ if (!offset.x && !offset.y) { return this; }
-/*
- * @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 (options.animate && options.pan) {
+ this.panBy(offset);
+ } else {
+ if (options.pan) {
+ this._rawPanBy(offset);
+ }
-L.Layer = L.Evented.extend({
+ this.fire('move');
- // 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),
+ if (options.debounceMoveend) {
+ clearTimeout(this._sizeTimer);
+ this._sizeTimer = setTimeout(bind(this.fire, this, 'moveend'), 200);
+ } else {
+ this.fire('moveend');
+ }
+ }
- // @option attribution: String = null
- // String to be shown in the attribution control, describes the layer data, e.g. "© Mapbox".
- attribution: null,
+ // @section Map state change events
+ // @event resize: ResizeEvent
+ // Fired when the map is resized.
+ return this.fire('resize', {
+ oldSize: oldSize,
+ newSize: newSize
+ });
},
- /* @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;
+ // @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();
},
- // @method remove: this
- // Removes the layer from the map it is currently active on.
- remove: function () {
- return this.removeFrom(this._map || this._mapToAdd);
- },
+ // @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) {
- // @method removeFrom(map: Map): this
- // Removes the layer from the given map
- removeFrom: function (obj) {
- if (obj) {
- obj.removeLayer(this);
+ options = this._locateOptions = extend({
+ timeout: 10000,
+ watch: false
+ // setView: false
+ // maxZoom: <Number>
+ // maximumAge: 0
+ // enableHighAccuracy: false
+ }, options);
+
+ if (!('geolocation' in navigator)) {
+ this._handleGeolocationError({
+ code: 0,
+ message: 'Geolocation not supported.'
+ });
+ return this;
}
- return this;
- },
- // @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);
- },
+ var onResponse = bind(this._handleGeolocationResponse, this),
+ onError = bind(this._handleGeolocationError, this);
- addInteractiveTarget: function (targetEl) {
- this._map._targets[L.stamp(targetEl)] = this;
+ if (options.watch) {
+ this._locationWatchId =
+ navigator.geolocation.watchPosition(onResponse, onError, options);
+ } else {
+ navigator.geolocation.getCurrentPosition(onResponse, onError, options);
+ }
return this;
},
- removeInteractiveTarget: function (targetEl) {
- delete this._map._targets[L.stamp(targetEl)];
+ // @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;
},
- // @method getAttribution: String
- // Used by the `attribution control`, returns the [attribution option](#gridlayer-attribution).
- getAttribution: function () {
- return this.options.attribution;
- },
-
- _layerAdd: function (e) {
- var map = e.target;
-
- // check in case layer gets added and then removed before the map is ready
- if (!map.hasLayer(this)) { return; }
-
- this._map = map;
- this._zoomAnimated = map._zoomAnimated;
+ _handleGeolocationError: function (error) {
+ var c = error.code,
+ message = error.message ||
+ (c === 1 ? 'permission denied' :
+ (c === 2 ? 'position unavailable' : 'timeout'));
- if (this.getEvents) {
- var events = this.getEvents();
- map.on(events, this);
- this.once('remove', function () {
- map.off(events, this);
- }, this);
+ if (this._locateOptions.setView && !this._loaded) {
+ this.fitWorld();
}
- this.onAdd(map);
+ // @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 + '.'
+ });
+ },
- if (this.getAttribution && this._map.attributionControl) {
- this._map.attributionControl.addAttribution(this.getAttribution());
+ _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;
+
+ if (options.setView) {
+ var zoom = this.getBoundsZoom(bounds);
+ this.setView(latlng, options.maxZoom ? Math.min(zoom, options.maxZoom) : zoom);
}
- this.fire('add');
- map.fire('layeradd', {layer: this});
- }
-});
+ var data = {
+ latlng: latlng,
+ bounds: bounds,
+ timestamp: pos.timestamp
+ };
-/* @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.
- */
+ 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);
+ },
-/* @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;
+ // 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; }
- layer._mapToAdd = this;
+ var handler = this[name] = new HandlerClass(this);
- if (layer.beforeAdd) {
- layer.beforeAdd(this);
- }
+ this._handlers.push(handler);
- this.whenReady(layer._layerAdd, layer);
+ if (this.options[name]) {
+ handler.enable();
+ }
return this;
},
- // @method removeLayer(layer: Layer): this
- // Removes the given layer from the map.
- removeLayer: function (layer) {
- var id = L.stamp(layer);
+ // @method remove(): this
+ // Destroys the map and clears all related event listeners.
+ remove: function () {
- if (!this._layers[id]) { return this; }
+ this._initEvents(true);
- if (this._loaded) {
- layer.onRemove(this);
+ if (this._containerId !== this._container._leaflet_id) {
+ throw new Error('Map container is being reused by another instance');
}
- if (layer.getAttribution && this.attributionControl) {
- this.attributionControl.removeAttribution(layer.getAttribution());
+ 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;
}
- delete this._layers[id];
-
- if (this._loaded) {
- this.fire('layerremove', {layer: layer});
- layer.fire('remove');
+ if (this._locationWatchId !== undefined) {
+ this.stopLocate();
}
- layer._map = layer._mapToAdd = null;
-
- return this;
- },
+ this._stop();
- // @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);
- },
+ remove(this._mapPane);
- /* @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]);
+ if (this._clearControlPos) {
+ this._clearControlPos();
+ }
+ if (this._resizeRequest) {
+ cancelAnimFrame(this._resizeRequest);
+ this._resizeRequest = null;
}
- return this;
- },
- _addLayers: function (layers) {
- layers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : [];
+ this._clearHandlers();
- for (var i = 0, len = layers.length; i < len; i++) {
- this.addLayer(layers[i]);
+ 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');
}
- },
- _addZoomLimit: function (layer) {
- if (isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom)) {
- this._zoomBoundLayers[L.stamp(layer)] = layer;
- this._updateZoomLevels();
+ var i;
+ for (i in this._layers) {
+ this._layers[i].remove();
+ }
+ for (i in this._panes) {
+ remove(this._panes[i]);
}
- },
- _removeZoomLimit: function (layer) {
- var id = L.stamp(layer);
+ this._layers = [];
+ this._panes = [];
+ delete this._mapPane;
+ delete this._renderer;
- if (this._zoomBoundLayers[id]) {
- delete this._zoomBoundLayers[id];
- this._updateZoomLevels();
- }
+ return this;
},
- _updateZoomLevels: function () {
- var minZoom = Infinity,
- maxZoom = -Infinity,
- oldZoomSpan = this._getZoomSpan();
-
- for (var i in this._zoomBoundLayers) {
- var options = this._zoomBoundLayers[i].options;
+ // @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);
- minZoom = options.minZoom === undefined ? minZoom : Math.min(minZoom, options.minZoom);
- maxZoom = options.maxZoom === undefined ? maxZoom : Math.max(maxZoom, options.maxZoom);
+ if (name) {
+ this._panes[name] = pane;
}
+ return pane;
+ },
- this._layersMaxZoom = maxZoom === -Infinity ? undefined : maxZoom;
- this._layersMinZoom = minZoom === Infinity ? undefined : minZoom;
+ // @section Methods for Getting Map State
- // @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 getCenter(): LatLng
+ // Returns the geographical center of the map view
+ getCenter: function () {
+ this._checkIfLoaded();
- 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);
+ 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());
-/*
- * @namespace DomEvent
- * Utility functions to work with the [DOM events](https://developer.mozilla.org/docs/Web/API/Event), used by Leaflet internally.
- */
+ return new LatLngBounds(sw, ne);
+ },
-// Inspired by John Resig, Dean Edwards and YUI addEvent implementations.
+ // @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;
+ },
+ // @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;
+ },
+ // @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]);
-var eventsKey = '_leaflet_events';
+ 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);
-L.DomEvent = {
+ zoom = this.getScaleZoom(scale, 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'`).
+ 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;
+ }
- // @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) {
+ return Math.max(min, Math.min(max, zoom));
+ },
- if (typeof types === 'object') {
- for (var type in types) {
- this._on(obj, type, types[type], fn);
- }
- } else {
- types = L.Util.splitWords(types);
+ // @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);
- for (var i = 0, len = types.length; i < len; i++) {
- this._on(obj, types[i], fn, context);
- }
+ this._sizeChanged = false;
}
-
- return this;
+ return this._size.clone();
},
- // @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.
-
- // @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) {
-
- if (typeof types === 'object') {
- for (var type in types) {
- this._off(obj, type, types[type], fn);
- }
- } else {
- types = L.Util.splitWords(types);
-
- for (var i = 0, len = types.length; i < len; i++) {
- this._off(obj, types[i], fn, context);
- }
- }
-
- return this;
+ // @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()));
},
- _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);
+ // 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;
+ },
- } else if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener) {
- this.addDoubleTapListener(obj, handler, id);
+ // @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);
+ },
- } else if ('addEventListener' in obj) {
+ // @section Other Methods
- if (type === 'mousewheel') {
- obj.addEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false);
+ // @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;
+ },
- } 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);
+ // @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;
+ },
- } else {
- if (type === 'click' && L.Browser.android) {
- handler = function (e) {
- return L.DomEvent._filterClick(e, originalHandler);
- };
- }
- obj.addEventListener(type, handler, false);
- }
+ // @method getContainer: HTMLElement
+ // Returns the HTML element that contains the map.
+ getContainer: function () {
+ return this._container;
+ },
- } else if ('attachEvent' in obj) {
- obj.attachEvent('on' + type, handler);
- }
- obj[eventsKey] = obj[eventsKey] || {};
- obj[eventsKey][id] = handler;
+ // @section Conversion Methods
- return this;
+ // @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);
},
- _off: function (obj, type, fn, context) {
-
- var id = type + L.stamp(fn) + (context ? '_' + L.stamp(context) : ''),
- handler = obj[eventsKey] && obj[eventsKey][id];
+ // @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;
+ },
- if (!handler) { 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);
+ },
- if (L.Browser.pointer && type.indexOf('touch') === 0) {
- this.removePointerListener(obj, type, id);
+ // @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);
+ },
- } else if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) {
- this.removeDoubleTapListener(obj, id);
+ // @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);
+ },
- } else if ('removeEventListener' in obj) {
+ // @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());
+ },
- if (type === 'mousewheel') {
- obj.removeEventListener('onwheel' in obj ? 'wheel' : 'mousewheel', handler, false);
+ // @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));
+ },
- } else {
- obj.removeEventListener(
- type === 'mouseenter' ? 'mouseover' :
- type === 'mouseleave' ? 'mouseout' : type, handler, false);
- }
+ // @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));
+ },
- } else if ('detachEvent' in obj) {
- obj.detachEvent('on' + type, handler);
- }
+ // @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));
+ },
- obj[eventsKey][id] = null;
+ // @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());
+ },
- return this;
+ // @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());
},
- // @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) {
+ // @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);
+ },
- if (e.stopPropagation) {
- e.stopPropagation();
- } else if (e.originalEvent) { // In case of Leaflet event.
- e.originalEvent._stopped = true;
- } else {
- e.cancelBubble = true;
- }
- L.DomEvent._skipped(e);
+ // @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)));
+ },
- return this;
+ // @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);
},
- // @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);
+ // @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));
},
- // @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;
+ // @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));
+ },
- L.DomEvent.on(el, L.Draggable.START.join(' '), stop);
- return L.DomEvent.on(el, {
- click: L.DomEvent._fakeStop,
- dblclick: stop
- });
- },
+ // map initialization methods
- // @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) {
+ _initContainer: function (id) {
+ var container = this._container = get(id);
- if (e.preventDefault) {
- e.preventDefault();
- } else {
- e.returnValue = false;
+ if (!container) {
+ throw new Error('Map container not found.');
+ } else if (container._leaflet_id) {
+ throw new Error('Map container is already initialized.');
}
- return this;
- },
- // @function stop(ev): this
- // Does `stopPropagation` and `preventDefault` at the same time.
- stop: function (e) {
- return L.DomEvent
- .preventDefault(e)
- .stopPropagation(e);
+ on(container, 'scroll', this._onScroll, this);
+ this._containerId = stamp(container);
},
- // @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);
- }
+ _initLayout: function () {
+ var container = this._container;
- var rect = container.getBoundingClientRect();
+ this._fadeAnimated = this.options.fadeAnimation && any3d;
- return new L.Point(
- e.clientX - rect.left - container.clientLeft,
- e.clientY - rect.top - container.clientTop);
- },
+ addClass(container, 'leaflet-container' +
+ (touch ? ' leaflet-touch' : '') +
+ (retina ? ' leaflet-retina' : '') +
+ (ielt9 ? ' leaflet-oldie' : '') +
+ (safari ? ' leaflet-safari' : '') +
+ (this._fadeAnimated ? ' leaflet-fade-anim' : ''));
- // 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 position = getStyle(container, 'position');
- // @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;
- },
+ if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') {
+ container.style.position = 'relative';
+ }
- _skipEvents: {},
+ this._initPanes();
- _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 (this._initControlPos) {
+ this._initControlPos();
+ }
},
- _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;
- },
+ _initPanes: function () {
+ var panes = this._panes = {};
+ this._paneRenderers = {};
- // check if element really left/entered the event target (for mouseenter/mouseleave)
- _isExternalTarget: function (el, e) {
+ // @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
- var related = e.relatedTarget;
+ this._mapPane = this.createPane('mapPane', this._container);
+ setPosition(this._mapPane, new Point(0, 0));
- if (!related) { return true; }
+ // @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');
- try {
- while (related && (related !== el)) {
- related = related.parentNode;
- }
- } catch (err) {
- return false;
+ if (!this.options.markerZoomAnimation) {
+ addClass(panes.markerPane, 'leaflet-zoom-hide');
+ addClass(panes.shadowPane, 'leaflet-zoom-hide');
}
- return (related !== el);
},
- // this is a horrible workaround for a bug in Android where a single touch triggers two click events
- _filterClick: function (e, handler) {
- var timeStamp = (e.timeStamp || (e.originalEvent && e.originalEvent.timeStamp)),
- elapsed = L.DomEvent._lastClick && (timeStamp - L.DomEvent._lastClick);
- // are they closer together than 500ms yet more than 100ms?
- // Android typically triggers them ~300ms apart while multiple listeners
- // on the same event should be triggered far faster;
- // or check if click is simulated on the element, and if it is, reject any non-simulated events
-
- if ((elapsed && elapsed > 100 && elapsed < 500) || (e.target._simulatedClick && !e._simulated)) {
- L.DomEvent.stop(e);
- return;
- }
- L.DomEvent._lastClick = timeStamp;
+ // private methods that modify map state
- handler(e);
- }
-};
+ // @section Map state change events
+ _resetView: function (center, zoom) {
+ setPosition(this._mapPane, new Point(0, 0));
-// @function addListener(…): this
-// Alias to [`L.DomEvent.on`](#domevent-on)
-L.DomEvent.addListener = L.DomEvent.on;
+ var loading = !this._loaded;
+ this._loaded = true;
+ zoom = this._limitZoom(zoom);
-// @function removeListener(…): this
-// Alias to [`L.DomEvent.off`](#domevent-off)
-L.DomEvent.removeListener = L.DomEvent.off;
+ this.fire('viewprereset');
+ var zoomChanged = this._zoom !== zoom;
+ this
+ ._moveStart(zoomChanged, false)
+ ._move(center, zoom)
+ ._moveEnd(zoomChanged);
+ // @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');
-/*
- * @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({
+ // @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');
+ }
+ },
- // @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();
+ _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;
+ },
- this._el = el;
- this._inProgress = true;
- this._duration = duration || 0.25;
- this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2);
+ _move: function (center, zoom, data) {
+ if (zoom === undefined) {
+ zoom = this._zoom;
+ }
+ var zoomChanged = this._zoom !== zoom;
- this._startPos = L.DomUtil.getPosition(el);
- this._offset = newPos.subtract(this._startPos);
- this._startTime = +new Date();
+ this._zoom = zoom;
+ this._lastCenter = center;
+ this._pixelOrigin = this._getNewPixelOrigin(center);
- // @event start: Event
- // Fired when the animation starts
- this.fire('start');
+ // @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);
+ }
- this._animate();
+ // @event move: Event
+ // Fired repeatedly during any movement of the map, including pan and
+ // fly animations.
+ return this.fire('move', data);
},
- // @method stop()
- // Stops the animation (if currently running).
- stop: function () {
- if (!this._inProgress) { return; }
+ _moveEnd: function (zoomChanged) {
+ // @event zoomend: Event
+ // Fired when the map has changed, after any animations.
+ if (zoomChanged) {
+ this.fire('zoomend');
+ }
- this._step(true);
- this._complete();
+ // @event moveend: Event
+ // Fired when the center of the map stops changing (e.g. user stopped
+ // dragging the map).
+ return this.fire('moveend');
},
- _animate: function () {
- // animation loop
- this._animId = L.Util.requestAnimFrame(this._animate, this);
- this._step();
+ _stop: function () {
+ cancelAnimFrame(this._flyToFrame);
+ if (this._panAnim) {
+ this._panAnim.stop();
+ }
+ return this;
},
- _step: function (round) {
- var elapsed = (+new Date()) - this._startTime,
- duration = this._duration * 1000;
+ _rawPanBy: function (offset) {
+ setPosition(this._mapPane, this._getMapPanePos().subtract(offset));
+ },
- if (elapsed < duration) {
- this._runFrame(this._easeOut(elapsed / duration), round);
- } else {
- this._runFrame(1);
- this._complete();
- }
+ _getZoomSpan: function () {
+ return this.getMaxZoom() - this.getMinZoom();
},
- _runFrame: function (progress, round) {
- var pos = this._startPos.add(this._offset.multiplyBy(progress));
- if (round) {
- pos._round();
+ _panInsideMaxBounds: function () {
+ if (!this._enforcingBounds) {
+ this.panInsideBounds(this.options.maxBounds);
}
- L.DomUtil.setPosition(this._el, pos);
-
- // @event step: Event
- // Fired continuously during the animation.
- this.fire('step');
},
- _complete: function () {
- L.Util.cancelAnimFrame(this._animId);
-
- this._inProgress = false;
- // @event end: Event
- // Fired when the animation ends.
- this.fire('end');
+ _checkIfLoaded: function () {
+ if (!this._loaded) {
+ throw new Error('Set map center and zoom first.');
+ }
},
- _easeOut: function (t) {
- return 1 - Math.pow(1 - t, this._easeOutPower);
- }
-});
-
-
+ // DOM event handling
-/*
- * @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.
- */
+ // @section Interaction events
+ _initEvents: function (remove$$1) {
+ this._targets = {};
+ this._targets[stamp(this._container)] = this;
-L.Projection.Mercator = {
- R: 6378137,
- R_MINOR: 6356752.314245179,
+ var onOff = remove$$1 ? off : on;
- bounds: L.bounds([-20037508.34279, -15496570.73972], [20037508.34279, 18764656.23138]),
+ // @event click: MouseEvent
+ // Fired when the user clicks (or taps) the map.
+ // @event dblclick: MouseEvent
+ // Fired when the user double-clicks (or double-taps) the map.
+ // @event mousedown: MouseEvent
+ // Fired when the user pushes the mouse button on the map.
+ // @event mouseup: MouseEvent
+ // Fired when the user releases the mouse button on the map.
+ // @event mouseover: MouseEvent
+ // Fired when the mouse enters the map.
+ // @event mouseout: MouseEvent
+ // Fired when the mouse leaves the map.
+ // @event mousemove: MouseEvent
+ // Fired while the mouse moves over the map.
+ // @event contextmenu: MouseEvent
+ // Fired when the user pushes the right mouse button on the map, prevents
+ // default browser context menu from showing if there are listeners on
+ // this event. Also fired on mobile when the user holds a single touch
+ // for a second (also called long press).
+ // @event keypress: KeyboardEvent
+ // Fired when the user presses a key from the keyboard while the map is focused.
+ onOff(this._container, 'click dblclick mousedown mouseup ' +
+ 'mouseover mouseout mousemove contextmenu keypress', this._handleDOMEvent, this);
- project: function (latlng) {
- var d = Math.PI / 180,
- r = this.R,
- y = latlng.lat * d,
- tmp = this.R_MINOR / r,
- e = Math.sqrt(1 - tmp * tmp),
- con = e * Math.sin(y);
+ if (this.options.trackResize) {
+ onOff(window, 'resize', this._onResize, this);
+ }
- var ts = Math.tan(Math.PI / 4 - y / 2) / Math.pow((1 - con) / (1 + con), e / 2);
- y = -r * Math.log(Math.max(ts, 1E-10));
+ if (any3d && this.options.transform3DLimit) {
+ (remove$$1 ? this.off : this.on).call(this, 'moveend', this._onMoveEnd);
+ }
+ },
- return new L.Point(latlng.lng * d * r, y);
+ _onResize: function () {
+ cancelAnimFrame(this._resizeRequest);
+ this._resizeRequest = requestAnimFrame(
+ function () { this.invalidateSize({debounceMoveend: true}); }, this);
},
- 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);
+ _onScroll: function () {
+ this._container.scrollTop = 0;
+ this._container.scrollLeft = 0;
+ },
- 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;
+ _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());
}
+ },
- return new L.LatLng(phi * d, point.x * d / r);
- }
-};
+ _findEventTargets: function (e, type) {
+ var targets = [],
+ target,
+ isHover = type === 'mouseout' || type === 'mouseover',
+ src = e.target || e.srcElement,
+ dragging = false;
+ 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;
+ }
+ 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;
+ }
+ if (!targets.length && !dragging && !isHover && isExternalTarget(src, e)) {
+ targets = [this];
+ }
+ return targets;
+ },
+ _handleDOMEvent: function (e) {
+ if (!this._loaded || skipped(e)) { return; }
-/*
- * @namespace CRS
- * @crs L.CRS.EPSG3395
- *
- * Rarely used by some commercial tile providers. Uses Elliptical Mercator projection.
- */
+ var type = e.type;
-L.CRS.EPSG3395 = L.extend({}, L.CRS.Earth, {
- code: 'EPSG:3395',
- projection: L.Projection.Mercator,
+ if (type === 'mousedown' || type === 'keypress') {
+ // prevents outline when clicking on keyboard-focusable element
+ preventOutline(e.target || e.srcElement);
+ }
- transformation: (function () {
- var scale = 0.5 / (Math.PI * L.Projection.Mercator.R);
- return new L.Transformation(scale, 0.5, -scale, 0.5);
- }())
-});
+ this._fireDOMEvent(e, type);
+ },
+ _mouseEvents: ['click', 'dblclick', 'mouseover', 'mouseout', 'contextmenu'],
+ _fireDOMEvent: function (e, type, targets) {
-/*
- * @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 (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);
+ }
-L.GridLayer = L.Layer.extend({
+ if (e._stopped) { return; }
- // @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,
+ // Find the layer the event is propagating from and its parents.
+ targets = (targets || []).concat(this._findEventTargets(e, type));
- // @option opacity: Number = 1.0
- // Opacity of the tiles. Can be used in the `createTile()` function.
- opacity: 1,
+ if (!targets.length) { return; }
- // @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,
+ var target = targets[0];
+ if (type === 'contextmenu' && target.listens(type, true)) {
+ preventDefault(e);
+ }
- // @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,
+ var data = {
+ originalEvent: e
+ };
- // @option updateInterval: Number = 200
- // Tiles will not update more than once every `updateInterval` milliseconds when panning.
- updateInterval: 200,
+ if (e.type !== 'keypress') {
+ 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);
+ }
- // @option zIndex: Number = 1
- // The explicit zIndex of the tile layer.
- zIndex: 1,
+ 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; }
+ }
+ },
- // @option bounds: LatLngBounds = undefined
- // If set, tiles will only be loaded inside the set `LatLngBounds`.
- bounds: null,
+ _draggableMoved: function (obj) {
+ obj = obj.dragging && obj.dragging.enabled() ? obj : this;
+ return (obj.dragging && obj.dragging.moved()) || (this.boxZoom && this.boxZoom.moved());
+ },
- // @option minZoom: Number = 0
- // The minimum zoom level that tiles will be loaded at. By default the entire map.
- minZoom: 0,
+ _clearHandlers: function () {
+ for (var i = 0, len = this._handlers.length; i < len; i++) {
+ this._handlers[i].disable();
+ }
+ },
- // @option maxZoom: Number = undefined
- // The maximum zoom level that tiles will be loaded at.
- maxZoom: undefined,
+ // @section Other Methods
- // @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.
- noWrap: false,
+ // @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;
+ },
- // @option pane: String = 'tilePane'
- // `Map pane` where the grid layer will be added.
- pane: 'tilePane',
- // @option className: String = ''
- // A custom class name to assign to the tile layer. Empty by default.
- className: '',
+ // private methods for getting map state
- // @option keepBuffer: Number = 2
- // When panning the map, keep this many rows and columns of tiles before unloading them.
- keepBuffer: 2
+ _getMapPanePos: function () {
+ return getPosition(this._mapPane) || new Point(0, 0);
},
- initialize: function (options) {
- L.setOptions(this, options);
+ _moved: function () {
+ var pos = this._getMapPanePos();
+ return pos && !pos.equals([0, 0]);
},
- onAdd: function () {
- this._initContainer();
+ _getTopLeftPoint: function (center, zoom) {
+ var pixelOrigin = center && zoom !== undefined ?
+ this._getNewPixelOrigin(center, zoom) :
+ this.getPixelOrigin();
+ return pixelOrigin.subtract(this._getMapPanePos());
+ },
- this._levels = {};
- this._tiles = {};
+ _getNewPixelOrigin: function (center, zoom) {
+ var viewHalf = this.getSize()._divideBy(2);
+ return this.project(center, zoom)._subtract(viewHalf)._add(this._getMapPanePos())._round();
+ },
- this._resetView();
- this._update();
+ _latLngToNewLayerPoint: function (latlng, zoom, center) {
+ var topLeft = this._getNewPixelOrigin(center, zoom);
+ return this.project(latlng, zoom)._subtract(topLeft);
},
- beforeAdd: function (map) {
- map._addZoomLimit(this);
+ _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)
+ ]);
},
- onRemove: function (map) {
- this._removeAllTiles();
- L.DomUtil.remove(this._container);
- map._removeZoomLimit(this);
- this._container = null;
- this._tileZoom = null;
+ // layer point of the current center
+ _getCenterLayerPoint: function () {
+ return this.containerPointToLayerPoint(this.getSize()._divideBy(2));
},
- // @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);
- }
- return this;
+ // offset of the specified place to the current center in pixels
+ _getCenterOffset: function (latlng) {
+ return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint());
},
- // @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);
+ // adjust center for view to get inside bounds
+ _limitCenter: function (center, zoom, bounds) {
+
+ if (!bounds) { return center; }
+
+ var centerPoint = this.project(center, zoom),
+ viewHalf = this.getSize().divideBy(2),
+ viewBounds = new Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)),
+ offset = this._getBoundsOffset(viewBounds, bounds, zoom);
+
+ // 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;
- },
- // @method getContainer: HTMLElement
- // Returns the HTML element that contains the tiles for this layer.
- getContainer: function () {
- return this._container;
+ return this.unproject(centerPoint.add(offset), zoom);
},
- // @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;
- },
+ // adjust offset for view to get inside bounds
+ _limitOffset: function (offset, bounds) {
+ if (!bounds) { return offset; }
- // @method setZIndex(zIndex: Number): this
- // Changes the [zIndex](#gridlayer-zindex) of the grid layer.
- setZIndex: function (zIndex) {
- this.options.zIndex = zIndex;
- this._updateZIndex();
+ var viewBounds = this.getPixelBounds(),
+ newBounds = new Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset));
- return this;
+ return offset.add(this._getBoundsOffset(newBounds, bounds));
},
- // @method isLoading: Boolean
- // Returns `true` if any tile in the grid layer has not finished loading.
- isLoading: function () {
- return this._loading;
- },
+ // 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),
- // @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;
- },
-
- getEvents: function () {
- var events = {
- viewprereset: this._invalidateAll,
- viewreset: this._resetView,
- zoom: this._resetView,
- moveend: this._onMoveEnd
- };
+ dx = this._rebound(minOffset.x, -maxOffset.x),
+ dy = this._rebound(minOffset.y, -maxOffset.y);
- 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);
- }
+ return new Point(dx, dy);
+ },
- events.move = this._onMove;
- }
+ _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));
+ },
- if (this._zoomAnimated) {
- events.zoomanim = this._animateZoom;
+ _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 events;
+ return Math.max(min, Math.min(max, zoom));
},
- // @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');
+ _onPanTransitionStep: function () {
+ this.fire('move');
},
- // @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);
+ _onPanTransitionEnd: function () {
+ removeClass(this._mapPane, 'leaflet-pan-anim');
+ this.fire('moveend');
},
- _updateZIndex: function () {
- if (this._container && this.options.zIndex !== undefined && this.options.zIndex !== null) {
- this._container.style.zIndex = this.options.zIndex;
- }
+ _tryAnimatedPan: function (center, options) {
+ // difference between the new and current centers in pixels
+ var offset = this._getCenterOffset(center)._trunc();
+
+ // don't animate too far unless animate: true specified in options
+ if ((options && options.animate) !== true && !this.getSize().contains(offset)) { return false; }
+
+ this.panBy(offset, options);
+
+ return true;
},
- _setAutoZIndex: function (compare) {
- // go through all other layers of the same pane, set zIndex to max + 1 (front) or min - 1 (back)
+ _createAnimProxy: function () {
- var layers = this.getPane().children,
- edgeZIndex = -compare(-Infinity, Infinity); // -Infinity for max, Infinity for min
+ var proxy = this._proxy = create$1('div', 'leaflet-proxy leaflet-zoom-animated');
+ this._panes.mapPane.appendChild(proxy);
- for (var i = 0, len = layers.length, zIndex; i < len; i++) {
+ this.on('zoomanim', function (e) {
+ var prop = TRANSFORM,
+ transform = this._proxy.style[prop];
- zIndex = layers[i].style.zIndex;
+ setTransform(this._proxy, this.project(e.center, e.zoom), this.getZoomScale(e.zoom, 1));
- if (layers[i] !== this._container && zIndex) {
- edgeZIndex = compare(edgeZIndex, +zIndex);
+ // 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);
- if (isFinite(edgeZIndex)) {
- this.options.zIndex = edgeZIndex + compare(-1, 1);
- this._updateZIndex();
+ this.on('load moveend', function () {
+ var c = this.getCenter(),
+ z = this.getZoom();
+ setTransform(this._proxy, this.project(c, z), this.getZoomScale(z, 1));
+ }, this);
+
+ this._on('unload', this._destroyAnimProxy, this);
+ },
+
+ _destroyAnimProxy: function () {
+ remove(this._proxy);
+ delete this._proxy;
+ },
+
+ _catchTransitionEnd: function (e) {
+ if (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) {
+ this._onZoomTransitionEnd();
}
},
- _updateOpacity: function () {
- if (!this._map) { return; }
+ _nothingToAnimate: function () {
+ return !this._container.getElementsByClassName('leaflet-zoom-animated').length;
+ },
- // IE doesn't inherit filter opacity properly, so we're forced to set it on tiles
- if (L.Browser.ielt9) { return; }
+ _tryAnimatedZoom: function (center, zoom, options) {
- L.DomUtil.setOpacity(this._container, this.options.opacity);
+ if (this._animatingZoom) { return true; }
- var now = +new Date(),
- nextFrame = false,
- willPrune = false;
+ options = options || {};
- for (var key in this._tiles) {
- var tile = this._tiles[key];
- if (!tile.current || !tile.loaded) { continue; }
+ // 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; }
- var fade = Math.min(1, (now - tile.loaded) / 200);
+ // 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);
- L.DomUtil.setOpacity(tile.el, fade);
- if (fade < 1) {
- nextFrame = true;
- } else {
- if (tile.active) { willPrune = true; }
- tile.active = true;
- }
- }
+ // 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; }
- if (willPrune && !this._noPrune) { this._pruneTiles(); }
+ requestAnimFrame(function () {
+ this
+ ._moveStart(true, false)
+ ._animateZoom(center, zoom, true);
+ }, this);
- if (nextFrame) {
- L.Util.cancelAnimFrame(this._fadeFrame);
- this._fadeFrame = L.Util.requestAnimFrame(this._updateOpacity, this);
- }
+ return true;
},
- _initContainer: function () {
- if (this._container) { return; }
+ _animateZoom: function (center, zoom, startAnim, noUpdate) {
+ if (!this._mapPane) { return; }
- this._container = L.DomUtil.create('div', 'leaflet-layer ' + (this.options.className || ''));
- this._updateZIndex();
+ if (startAnim) {
+ this._animatingZoom = true;
- if (this.options.opacity < 1) {
- this._updateOpacity();
- }
+ // remember what center/zoom to set after animation
+ this._animateToCenter = center;
+ this._animateToZoom = zoom;
- this.getPane().appendChild(this._container);
- },
+ addClass(this._mapPane, 'leaflet-zoom-anim');
+ }
- _updateLevels: function () {
+ // @event zoomanim: ZoomAnimEvent
+ // Fired on every frame of a zoom animation
+ this.fire('zoomanim', {
+ center: center,
+ zoom: zoom,
+ noUpdate: noUpdate
+ });
- var zoom = this._tileZoom,
- maxZoom = this.options.maxZoom;
+ // Work around webkit not firing 'transitionend', see https://github.com/Leaflet/Leaflet/issues/3689, 2693
+ setTimeout(bind(this._onZoomTransitionEnd, this), 250);
+ },
- if (zoom === undefined) { return undefined; }
+ _onZoomTransitionEnd: function () {
+ if (!this._animatingZoom) { return; }
- 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];
- }
+ if (this._mapPane) {
+ removeClass(this._mapPane, 'leaflet-zoom-anim');
}
- var level = this._levels[zoom],
- map = this._map;
+ this._animatingZoom = false;
- if (!level) {
- level = this._levels[zoom] = {};
+ this._move(this._animateToCenter, this._animateToZoom);
- level.el = L.DomUtil.create('div', 'leaflet-tile-container leaflet-zoom-animated', this._container);
- level.el.style.zIndex = maxZoom;
+ // This anim frame should prevent an obscure iOS webkit tile loading race condition.
+ requestAnimFrame(function () {
+ this._moveEnd(true);
+ }, this);
+ }
+});
- level.origin = map.project(map.unproject(map.getPixelOrigin()), zoom).round();
- level.zoom = zoom;
+// @section
- this._setZoomTransform(level, map.getCenter(), map.getZoom());
+// @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);
+}
- // force the browser to consider the newly added element for transition
- L.Util.falseFn(level.el.offsetWidth);
- }
+/*
+ * @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.
+ */
- this._level = level;
+var Control = 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'
+ },
- return level;
+ initialize: function (options) {
+ setOptions(this, options);
},
- _pruneTiles: function () {
- if (!this._map) {
- return;
- }
+ /* @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 key, tile;
+ // @method setPosition(position: string): this
+ // Sets the position of the control.
+ setPosition: function (position) {
+ var map = this._map;
- var zoom = this._map.getZoom();
- if (zoom > this.options.maxZoom ||
- zoom < this.options.minZoom) {
- this._removeAllTiles();
- return;
+ if (map) {
+ map.removeControl(this);
}
- for (key in this._tiles) {
- tile = this._tiles[key];
- tile.retain = tile.current;
+ this.options.position = position;
+
+ if (map) {
+ map.addControl(this);
}
- 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);
- }
- }
- }
-
- for (key in this._tiles) {
- if (!this._tiles[key].retain) {
- this._removeTile(key);
- }
- }
+ return this;
},
- _removeTilesAtZoom: function (zoom) {
- for (var key in this._tiles) {
- if (this._tiles[key].coords.z !== zoom) {
- continue;
- }
- this._removeTile(key);
- }
+ // @method getContainer: HTMLElement
+ // Returns the HTMLElement that contains the control.
+ getContainer: function () {
+ return this._container;
},
- _removeAllTiles: function () {
- for (var key in this._tiles) {
- this._removeTile(key);
- }
- },
+ // @method addTo(map: Map): this
+ // Adds the control to the given map.
+ addTo: function (map) {
+ this.remove();
+ this._map = map;
- _invalidateAll: function () {
- for (var z in this._levels) {
- L.DomUtil.remove(this._levels[z].el);
- delete this._levels[z];
+ var container = this._container = this.onAdd(map),
+ pos = this.getPosition(),
+ corner = map._controlCorners[pos];
+
+ addClass(container, 'leaflet-control');
+
+ if (pos.indexOf('bottom') !== -1) {
+ corner.insertBefore(container, corner.firstChild);
+ } else {
+ corner.appendChild(container);
}
- this._removeAllTiles();
- this._tileZoom = null;
+ 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;
-
- var key = this._tileCoordsToKey(coords2),
- tile = this._tiles[key];
+ // @method remove: this
+ // Removes the control from the map it is currently active on.
+ remove: function () {
+ if (!this._map) {
+ return this;
+ }
- if (tile && tile.active) {
- tile.retain = true;
- return true;
+ remove(this._container);
- } else if (tile && tile.loaded) {
- tile.retain = true;
+ if (this.onRemove) {
+ this.onRemove(this._map);
}
- if (z2 > minZoom) {
- return this._retainParent(x2, y2, z2, minZoom);
- }
+ this._map = null;
- return false;
+ return this;
},
- _retainChildren: function (x, y, z, maxZoom) {
+ _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();
+ }
+ }
+});
- for (var i = 2 * x; i < 2 * x + 2; i++) {
- for (var j = 2 * y; j < 2 * y + 2; j++) {
+var control = function (options) {
+ return new Control(options);
+};
- var coords = new L.Point(i, j);
- coords.z = z + 1;
+/* @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).
+ */
- var key = this._tileCoordsToKey(coords),
- tile = this._tiles[key];
+/* @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;
+ },
- if (tile && tile.active) {
- tile.retain = true;
- continue;
+ // @method removeControl(control: Control): this
+ // Removes the given control from the map
+ removeControl: function (control) {
+ control.remove();
+ return this;
+ },
- } else if (tile && tile.loaded) {
- tile.retain = true;
- }
+ _initControlPos: function () {
+ var corners = this._controlCorners = {},
+ l = 'leaflet-',
+ container = this._controlContainer =
+ create$1('div', l + 'control-container', this._container);
- if (z + 1 < maxZoom) {
- this._retainChildren(i, j, z + 1, maxZoom);
- }
- }
- }
- },
+ function createCorner(vSide, hSide) {
+ var className = l + vSide + ' ' + l + hSide;
- _resetView: function (e) {
- var animating = e && (e.pinch || e.flyTo);
- this._setView(this._map.getCenter(), this._map.getZoom(), animating, animating);
- },
+ corners[vSide + hSide] = create$1('div', className, container);
+ }
- _animateZoom: function (e) {
- this._setView(e.center, e.zoom, true, e.noUpdate);
+ createCorner('top', 'left');
+ createCorner('top', 'right');
+ createCorner('bottom', 'left');
+ createCorner('bottom', 'right');
},
- _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;
+ _clearControlPos: function () {
+ for (var i in this._controlCorners) {
+ remove(this._controlCorners[i]);
}
+ remove(this._controlContainer);
+ delete this._controlCorners;
+ delete this._controlContainer;
+ }
+});
- var tileZoomChanged = this.options.updateWhenZooming && (tileZoom !== this._tileZoom);
+/*
+ * @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}
+ * ```
+ */
- if (!noUpdate || tileZoomChanged) {
+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._tileZoom = tileZoom;
+ // @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,
- if (this._abortLoading) {
- this._abortLoading();
- }
+ // @option hideSingleBase: Boolean = false
+ // If `true`, the base layers in the control will be hidden when there is only one.
+ hideSingleBase: false,
- this._updateLevels();
- this._resetGrid();
+ // @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,
- if (tileZoom !== undefined) {
- this._update(center);
- }
+ // @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);
+ }
+ },
- if (!noPrune) {
- this._pruneTiles();
- }
+ initialize: function (baseLayers, overlays, options) {
+ setOptions(this, options);
- // Flag to prevent _updateOpacity from pruning tiles during
- // a zoom anim or a pinch gesture
- this._noPrune = !!noPrune;
+ this._layerControlInputs = [];
+ this._layers = [];
+ this._lastZIndex = 0;
+ this._handlingClick = false;
+
+ for (var i in baseLayers) {
+ this._addLayer(baseLayers[i], i);
}
- this._setZoomTransforms(center, zoom);
+ for (i in overlays) {
+ this._addLayer(overlays[i], i, true);
+ }
},
- _setZoomTransforms: function (center, zoom) {
- for (var i in this._levels) {
- this._setZoomTransform(this._levels[i], center, zoom);
+ onAdd: function (map) {
+ this._initLayout();
+ this._update();
+
+ 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;
},
- _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 (L.Browser.any3d) {
- L.DomUtil.setTransform(level.el, translate, scale);
- } else {
- L.DomUtil.setPosition(level.el, translate);
- }
+ 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();
},
- _resetGrid: function () {
- var map = this._map,
- crs = map.options.crs,
- tileSize = this._tileSize = this.getTileSize(),
- tileZoom = this._tileZoom;
+ onRemove: function () {
+ this._map.off('zoomend', this._checkDisabledLayers, this);
- var bounds = this._map.getPixelWorldBounds(this._tileZoom);
- if (bounds) {
- this._globalTileRange = this._pxBoundsToTileRange(bounds);
+ for (var i = 0; i < this._layers.length; i++) {
+ this._layers[i].layer.off('add remove', this._onLayerChange, this);
}
-
- 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)
- ];
},
- _onMoveEnd: function () {
- if (!this._map || this._map._animatingZoom) { return; }
+ // @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;
+ },
- this._update();
+ // @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;
},
- _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);
+ // @method removeLayer(layer: Layer): this
+ // Remove the given layer from the control.
+ removeLayer: function (layer) {
+ layer.off('add remove', this._onLayerChange, this);
- return new L.Bounds(pixelCenter.subtract(halfSize), pixelCenter.add(halfSize));
+ var obj = this._getLayer(stamp(layer));
+ if (obj) {
+ this._layers.splice(this._layers.indexOf(obj), 1);
+ }
+ return (this._map) ? this._update() : 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();
+ // @method expand(): this
+ // Expand the control container if collapsed.
+ expand: function () {
+ 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) {
+ addClass(this._form, 'leaflet-control-layers-scrollbar');
+ this._form.style.height = acceptableHeight + 'px';
+ } else {
+ removeClass(this._form, 'leaflet-control-layers-scrollbar');
+ }
+ this._checkDisabledLayers();
+ return this;
+ },
- if (center === undefined) { center = map.getCenter(); }
- if (this._tileZoom === undefined) { return; } // if out of minzoom/maxzoom
+ // @method collapse(): this
+ // Collapse the control container if expanded.
+ collapse: function () {
+ removeClass(this._container, 'leaflet-control-layers-expanded');
+ return this;
+ },
- 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]));
+ _initLayout: function () {
+ var className = 'leaflet-control-layers',
+ container = this._container = create$1('div', className),
+ collapsed = this.options.collapsed;
- 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;
- }
- }
+ // 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);
- // _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; }
+ disableClickPropagation(container);
+ disableScrollPropagation(container);
- // 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;
+ var form = this._form = create$1('form', className + '-list');
- if (!this._isValidTile(coords)) { continue; }
+ if (collapsed) {
+ this._map.on('click', this.collapse, this);
- var tile = this._tiles[this._tileCoordsToKey(coords)];
- if (tile) {
- tile.current = true;
- } else {
- queue.push(coords);
- }
+ if (!android) {
+ on(container, {
+ mouseenter: this.expand,
+ mouseleave: this.collapse
+ }, this);
}
}
- // 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');
- }
-
- // create DOM fragment to append tiles in one batch
- var fragment = document.createDocumentFragment();
-
- for (i = 0; i < queue.length; i++) {
- this._addTile(queue[i], fragment);
- }
+ var link = this._layersLink = create$1('a', className + '-toggle', container);
+ link.href = '#';
+ link.title = 'Layers';
- this._level.el.appendChild(fragment);
+ if (touch) {
+ on(link, 'click', stop);
+ on(link, 'click', this.expand, this);
+ } else {
+ on(link, 'focus', this.expand, this);
}
- },
- _isValidTile: function (coords) {
- var crs = this._map.options.crs;
-
- if (!crs.infinite) {
- // don't load tile if it's out of bounds and not wrapped
- var bounds = this._globalTileRange;
- if ((!crs.wrapLng && (coords.x < bounds.min.x || coords.x > bounds.max.x)) ||
- (!crs.wrapLat && (coords.y < bounds.min.y || coords.y > bounds.max.y))) { return false; }
+ if (!collapsed) {
+ this.expand();
}
- if (!this.options.bounds) { return true; }
+ this._baseLayersList = create$1('div', className + '-base', form);
+ this._separator = create$1('div', className + '-separator', form);
+ this._overlaysList = create$1('div', className + '-overlays', form);
- // 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);
+ container.appendChild(form);
},
- _keyToBounds: function (key) {
- return this._tileCoordsToBounds(this._keyToTileCoords(key));
- },
+ _getLayer: function (id) {
+ for (var i = 0; i < this._layers.length; i++) {
- // converts tile coordinates to its geographical bounds
- _tileCoordsToBounds: function (coords) {
+ if (this._layers[i] && stamp(this._layers[i].layer) === id) {
+ return this._layers[i];
+ }
+ }
+ },
- var map = this._map,
- tileSize = this.getTileSize(),
+ _addLayer: function (layer, name, overlay) {
+ if (this._map) {
+ layer.on('add remove', this._onLayerChange, this);
+ }
- nwPoint = coords.scaleBy(tileSize),
- sePoint = nwPoint.add(tileSize),
+ this._layers.push({
+ layer: layer,
+ name: name,
+ overlay: overlay
+ });
- nw = map.unproject(nwPoint, coords.z),
- se = map.unproject(sePoint, coords.z);
+ if (this.options.sortLayers) {
+ this._layers.sort(bind(function (a, b) {
+ return this.options.sortFunction(a.layer, b.layer, a.name, b.name);
+ }, this));
+ }
- if (!this.options.noWrap) {
- nw = map.wrapLatLng(nw);
- se = map.wrapLatLng(se);
+ if (this.options.autoZIndex && layer.setZIndex) {
+ this._lastZIndex++;
+ layer.setZIndex(this._lastZIndex);
}
- return new L.LatLngBounds(nw, se);
+ this._expandIfNotCollapsed();
},
- // converts tile coordinates to key for the tile cache
- _tileCoordsToKey: function (coords) {
- return coords.x + ':' + coords.y + ':' + coords.z;
- },
+ _update: function () {
+ if (!this._container) { return this; }
- // 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;
- },
+ empty(this._baseLayersList);
+ empty(this._overlaysList);
- _removeTile: function (key) {
- var tile = this._tiles[key];
- if (!tile) { return; }
+ this._layerControlInputs = [];
+ var baseLayersPresent, overlaysPresent, i, obj, baseLayersCount = 0;
- L.DomUtil.remove(tile.el);
+ 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;
+ }
- delete this._tiles[key];
+ // Hide base layers section if there's only one layer.
+ if (this.options.hideSingleBase) {
+ baseLayersPresent = baseLayersPresent && baseLayersCount > 1;
+ this._baseLayersList.style.display = baseLayersPresent ? '' : 'none';
+ }
- // @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._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none';
- _initTile: function (tile) {
- L.DomUtil.addClass(tile, 'leaflet-tile');
+ return this;
+ },
- var tileSize = this.getTileSize();
- tile.style.width = tileSize.x + 'px';
- tile.style.height = tileSize.y + 'px';
+ _onLayerChange: function (e) {
+ if (!this._handlingClick) {
+ this._update();
+ }
- tile.onselectstart = L.Util.falseFn;
- tile.onmousemove = L.Util.falseFn;
+ var obj = this._getLayer(stamp(e.target));
- // 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);
- }
+ // @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);
- // 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';
+ if (type) {
+ this._map.fire(type, obj);
}
},
- _addTile: function (coords, container) {
- var tilePos = this._getTilePos(coords),
- key = this._tileCoordsToKey(coords);
+ // 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 tile = this.createTile(this._wrapCoords(coords), L.bind(this._tileReady, this, coords));
+ var radioHtml = '<input type="radio" class="leaflet-control-layers-selector" name="' +
+ name + '"' + (checked ? ' checked="checked"' : '') + '/>';
- this._initTile(tile);
+ var radioFragment = document.createElement('div');
+ radioFragment.innerHTML = radioHtml;
- // 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 radioFragment.firstChild;
+ },
+
+ _addItem: function (obj) {
+ var label = document.createElement('label'),
+ checked = this._map.hasLayer(obj.layer),
+ input;
+
+ if (obj.overlay) {
+ input = document.createElement('input');
+ input.type = 'checkbox';
+ input.className = 'leaflet-control-layers-selector';
+ input.defaultChecked = checked;
+ } else {
+ input = this._createRadioElement('leaflet-base-layers', checked);
}
- L.DomUtil.setPosition(tile, tilePos);
+ this._layerControlInputs.push(input);
+ input.layerId = stamp(obj.layer);
- // save tile in cache
- this._tiles[key] = {
- el: tile,
- coords: coords,
- current: true
- };
+ on(input, 'click', this._onInputClick, this);
- container.appendChild(tile);
- // @event tileloadstart: TileEvent
- // Fired when a tile is requested and starts loading.
- this.fire('tileloadstart', {
- tile: tile,
- coords: coords
- });
- },
+ var name = document.createElement('span');
+ name.innerHTML = ' ' + obj.name;
- _tileReady: function (coords, err, tile) {
- if (!this._map) { return; }
+ // Helps from preventing layer control flicker when checkboxes are disabled
+ // https://github.com/Leaflet/Leaflet/issues/2771
+ var holder = document.createElement('div');
- if (err) {
- // @event tileerror: TileErrorEvent
- // Fired when there is an error loading a tile.
- this.fire('tileerror', {
- error: err,
- tile: tile,
- coords: coords
- });
- }
+ label.appendChild(holder);
+ holder.appendChild(input);
+ holder.appendChild(name);
- var key = this._tileCoordsToKey(coords);
+ var container = obj.overlay ? this._overlaysList : this._baseLayersList;
+ container.appendChild(label);
- tile = this._tiles[key];
- if (!tile) { return; }
+ this._checkDisabledLayers();
+ return label;
+ },
- 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();
- }
+ _onInputClick: function () {
+ var inputs = this._layerControlInputs,
+ input, layer;
+ var addedLayers = [],
+ removedLayers = [];
- if (!err) {
- L.DomUtil.addClass(tile.el, 'leaflet-tile-loaded');
+ this._handlingClick = true;
- // @event tileload: TileEvent
- // Fired when a tile loads.
- this.fire('tileload', {
- tile: tile.el,
- coords: coords
- });
- }
+ for (var i = inputs.length - 1; i >= 0; i--) {
+ input = inputs[i];
+ layer = this._getLayer(input.layerId).layer;
- if (this._noTilesToLoad()) {
- this._loading = false;
- // @event load: Event
- // Fired when the grid layer loaded all visible tiles.
- this.fire('load');
+ if (input.checked) {
+ addedLayers.push(layer);
+ } else if (!input.checked) {
+ removedLayers.push(layer);
+ }
+ }
- 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);
+ // 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]);
}
}
+
+ this._handlingClick = false;
+
+ this._refocusOnMap();
},
- _getTilePos: function (coords) {
- return coords.scaleBy(this.getTileSize()).subtract(this._level.origin);
+ _checkDisabledLayers: function () {
+ var inputs = this._layerControlInputs,
+ input,
+ layer,
+ zoom = this._map.getZoom();
+
+ 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);
+
+ }
},
- _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;
+ _expandIfNotCollapsed: function () {
+ if (this._map && !this.options.collapsed) {
+ this.expand();
+ }
+ return this;
},
- _pxBoundsToTileRange: function (bounds) {
- var tileSize = this.getTileSize();
- return new L.Bounds(
- bounds.min.unscaleBy(tileSize).floor(),
- bounds.max.unscaleBy(tileSize).ceil().subtract([1, 1]));
+ _expand: function () {
+ // Backward compatibility, remove me in 1.1.
+ return this.expand();
},
- _noTilesToLoad: function () {
- for (var key in this._tiles) {
- if (!this._tiles[key].loaded) { return false; }
- }
- return true;
+ _collapse: function () {
+ // Backward compatibility, remove me in 1.1.
+ return this.collapse();
}
-});
-// @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.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.
+var layers = function (baseLayers, overlays, options) {
+ return new Layers(baseLayers, overlays, 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.osm.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.Zoom
+ * @aka L.Control.Zoom
+ * @inherits Control
*
- * ```
- * L.tileLayer('http://{s}.somedomain.com/{foo}/{z}/{x}/{y}.png', {foo: 'bar'});
- * ```
+ * 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.TileLayer = L.GridLayer.extend({
-
+var Zoom = Control.extend({
// @section
- // @aka TileLayer options
+ // @aka Control.Zoom options
options: {
- // @option minZoom: Number = 0
- // Minimum zoom number.
- minZoom: 0,
+ position: 'topleft',
- // @option maxZoom: Number = 18
- // Maximum zoom number.
- maxZoom: 18,
+ // @option zoomInText: String = '+'
+ // The text set on the 'zoom in' button.
+ zoomInText: '+',
- // @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,
+ // @option zoomInTitle: String = 'Zoom in'
+ // The title set on the 'zoom in' button.
+ zoomInTitle: 'Zoom in',
- // @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,
+ // @option zoomOutText: String = '−'
+ // The text set on the 'zoom out' button.
+ zoomOutText: '−',
- // @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',
+ // @option zoomOutTitle: String = 'Zoom out'
+ // The title set on the 'zoom out' button.
+ zoomOutTitle: 'Zoom out'
+ },
- // @option errorTileUrl: String = ''
- // URL to the tile image to show in place of the tile that failed to load.
- errorTileUrl: '',
+ onAdd: function (map) {
+ var zoomName = 'leaflet-control-zoom',
+ container = create$1('div', zoomName + ' leaflet-bar'),
+ options = this.options;
- // @option zoomOffset: Number = 0
- // The zoom number used in tile URLs will be offset with this value.
- zoomOffset: 0,
+ 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 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._updateDisabled();
+ map.on('zoomend zoomlevelschange', this._updateDisabled, 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,
+ return container;
+ },
- // @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,
+ onRemove: function (map) {
+ map.off('zoomend zoomlevelschange', this._updateDisabled, 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
+ disable: function () {
+ this._disabled = true;
+ this._updateDisabled();
+ return this;
},
- initialize: function (url, options) {
+ enable: function () {
+ this._disabled = false;
+ this._updateDisabled();
+ return this;
+ },
- this._url = url;
+ _zoomIn: function (e) {
+ if (!this._disabled && this._map._zoom < this._map.getMaxZoom()) {
+ this._map.zoomIn(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1));
+ }
+ },
- options = L.setOptions(this, options);
+ _zoomOut: function (e) {
+ if (!this._disabled && this._map._zoom > this._map.getMinZoom()) {
+ this._map.zoomOut(this._map.options.zoomDelta * (e.shiftKey ? 3 : 1));
+ }
+ },
- // detecting retina displays, adjusting tileSize and zoom levels
- if (options.detectRetina && L.Browser.retina && options.maxZoom > 0) {
+ _createButton: function (html, title, className, container, fn) {
+ var link = create$1('a', className, container);
+ link.innerHTML = html;
+ link.href = '#';
+ link.title = title;
- options.tileSize = Math.floor(options.tileSize / 2);
+ /*
+ * Will force screen readers like VoiceOver to read this as "Zoom in - button"
+ */
+ link.setAttribute('role', 'button');
+ link.setAttribute('aria-label', title);
- if (!options.zoomReverse) {
- options.zoomOffset++;
- options.maxZoom--;
- } else {
- options.zoomOffset--;
- options.minZoom++;
- }
+ disableClickPropagation(link);
+ on(link, 'click', stop);
+ on(link, 'click', fn, this);
+ on(link, 'click', this._refocusOnMap, this);
- options.minZoom = Math.max(0, options.minZoom);
- }
+ return link;
+ },
- if (typeof options.subdomains === 'string') {
- options.subdomains = options.subdomains.split('');
- }
+ _updateDisabled: function () {
+ var map = this._map,
+ className = 'leaflet-disabled';
- // for https://github.com/Leaflet/Leaflet/issues/137
- if (!L.Browser.android) {
- this.on('tileunload', this._onTileRemove);
+ 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);
+ }
+ }
+});
- // @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;
+// @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
+});
- if (!noRedraw) {
- this.redraw();
- }
- return this;
- },
+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);
+ }
+});
- // @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');
+// @namespace Control.Zoom
+// @factory L.control.zoom(options: Control.Zoom options)
+// Creates a zoom control
+var zoom = function (options) {
+ return new Zoom(options);
+};
- L.DomEvent.on(tile, 'load', L.bind(this._tileOnLoad, this, done, tile));
- L.DomEvent.on(tile, 'error', L.bind(this._tileOnError, this, done, tile));
+/*
+ * @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);
+ * ```
+ */
- if (this.options.crossOrigin) {
- tile.crossOrigin = '';
- }
+var Scale = Control.extend({
+ // @section
+ // @aka Control.Scale options
+ options: {
+ position: 'bottomleft',
- /*
- 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 = '';
+ // @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,
- /*
- Set role="presentation" to force screen readers to ignore this
- https://www.w3.org/TR/wai-aria/roles#textalternativecomputation
- */
- tile.setAttribute('role', 'presentation');
+ // @option metric: Boolean = True
+ // Whether to show the metric scale line (m/km).
+ metric: true,
- tile.src = this.getTileUrl(coords);
+ // @option imperial: Boolean = True
+ // Whether to show the imperial scale line (mi/ft).
+ imperial: true
- return tile;
+ // @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)).
},
- // @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;
- }
+ onAdd: function (map) {
+ var className = 'leaflet-control-scale',
+ container = create$1('div', className),
+ options = this.options;
+
+ this._addScales(options, className + '-line', container);
+
+ map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
+ map.whenReady(this._update, this);
- return L.Util.template(this._url, L.extend(data, this.options));
+ return container;
},
- _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);
- }
+ onRemove: function (map) {
+ map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this);
},
- _tileOnError: function (done, tile, e) {
- var errorUrl = this.options.errorTileUrl;
- if (errorUrl) {
- tile.src = errorUrl;
+ _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);
}
- done(e, tile);
},
- getTileSize: function () {
+ _update: 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;
-
- // decrease tile size when scaling below minNativeZoom
- if (minNativeZoom !== null && zoom < minNativeZoom) {
- return tileSize.divideBy(map.getZoomScale(minNativeZoom, zoom)).round();
- }
+ y = map.getSize().y / 2;
- // increase tile size when scaling above maxNativeZoom
- if (maxNativeZoom !== null && zoom > maxNativeZoom) {
- return tileSize.divideBy(map.getZoomScale(maxNativeZoom, zoom)).round();
- }
+ var maxMeters = map.distance(
+ map.containerPointToLatLng([0, y]),
+ map.containerPointToLatLng([this.options.maxWidth, y]));
- return tileSize;
+ this._updateScales(maxMeters);
},
- _onTileRemove: function (e) {
- e.tile.onload = null;
+ _updateScales: function (maxMeters) {
+ if (this.options.metric && maxMeters) {
+ this._updateMetric(maxMeters);
+ }
+ if (this.options.imperial && maxMeters) {
+ this._updateImperial(maxMeters);
+ }
},
- _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;
+ _updateMetric: function (maxMeters) {
+ var meters = this._getRoundNum(maxMeters),
+ label = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km';
- if (zoomReverse) {
- zoom = maxZoom - zoom;
- }
+ this._updateScale(this._mScale, label, meters / maxMeters);
+ },
- zoom += zoomOffset;
+ _updateImperial: function (maxMeters) {
+ var maxFeet = maxMeters * 3.2808399,
+ maxMiles, miles, feet;
- if (minNativeZoom !== null && zoom < minNativeZoom) {
- return minNativeZoom;
- }
+ if (maxFeet > 5280) {
+ maxMiles = maxFeet / 5280;
+ miles = this._getRoundNum(maxMiles);
+ this._updateScale(this._iScale, miles + ' mi', miles / maxMiles);
- if (maxNativeZoom !== null && zoom > maxNativeZoom) {
- return maxNativeZoom;
+ } else {
+ feet = this._getRoundNum(maxFeet);
+ this._updateScale(this._iScale, feet + ' ft', feet / maxFeet);
}
-
- return zoom;
},
- _getSubdomain: function (tilePoint) {
- var index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length;
- return this.options.subdomains[index];
+ _updateScale: function (scale, text, ratio) {
+ scale.style.width = Math.round(this.options.maxWidth * ratio) + 'px';
+ scale.innerHTML = text;
},
- // 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;
+ _getRoundNum: function (num) {
+ var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1),
+ d = num / pow10;
- tile.onload = L.Util.falseFn;
- tile.onerror = L.Util.falseFn;
+ d = d >= 10 ? 10 :
+ d >= 5 ? 5 :
+ d >= 3 ? 3 :
+ d >= 2 ? 2 : 1;
- if (!tile.complete) {
- tile.src = L.Util.emptyImageUrl;
- L.DomUtil.remove(tile);
- }
- }
- }
+ return pow10 * d;
}
});
-// @factory L.tilelayer(urlTemplate: String, options?: TileLayer options)
-// Instantiates a tile layer object given a `URL template` and optionally an options object.
-
-L.tileLayer = function (url, options) {
- return new L.TileLayer(url, 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.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
+ * @class Control.Attribution
+ * @aka L.Control.Attribution
+ * @inherits Control
*
- * ```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"
- * });
- * ```
+ * 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.WMS = L.TileLayer.extend({
-
+var Attribution = Control.extend({
// @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',
+ // @aka Control.Attribution options
+ options: {
+ position: 'bottomright',
- // @option layers: String = ''
- // **(required)** Comma-separated list of WMS layers to show.
- layers: '',
+ // @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>'
+ },
- // @option styles: String = ''
- // Comma-separated list of WMS styles.
- styles: '',
+ initialize: function (options) {
+ setOptions(this, options);
- // @option format: String = 'image/jpeg'
- // WMS image format (use `'image/png'` for layers with transparency).
- format: 'image/jpeg',
+ this._attributions = {};
+ },
- // @option transparent: Boolean = false
- // If `true`, the WMS service will return images with transparency.
- transparent: false,
+ onAdd: function (map) {
+ map.attributionControl = this;
+ this._container = create$1('div', 'leaflet-control-attribution');
+ disableClickPropagation(this._container);
- // @option version: String = '1.1.1'
- // Version of the WMS service to use
- version: '1.1.1'
+ // TODO ugly, refactor
+ for (var i in map._layers) {
+ if (map._layers[i].getAttribution) {
+ this.addAttribution(map._layers[i].getAttribution());
+ }
+ }
+
+ this._update();
+
+ return this._container;
},
- 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,
+ // @method setPrefix(prefix: String): this
+ // Sets the text before the attributions.
+ setPrefix: function (prefix) {
+ this.options.prefix = prefix;
+ this._update();
+ return this;
+ },
- // @option uppercase: Boolean = false
- // If `true`, WMS request parameter keys will be uppercase.
- uppercase: false
+ // @method addAttribution(text: String): this
+ // Adds an attribution text (e.g. `'Vector data © Mapbox'`).
+ addAttribution: function (text) {
+ if (!text) { return this; }
+
+ if (!this._attributions[text]) {
+ this._attributions[text] = 0;
+ }
+ this._attributions[text]++;
+
+ this._update();
+
+ return this;
},
- initialize: function (url, options) {
+ // @method removeAttribution(text: String): this
+ // Removes an attribution text.
+ removeAttribution: function (text) {
+ if (!text) { return this; }
- this._url = url;
+ if (this._attributions[text]) {
+ this._attributions[text]--;
+ this._update();
+ }
+
+ return this;
+ },
- var wmsParams = L.extend({}, this.defaultWmsParams);
+ _update: function () {
+ if (!this._map) { return; }
- // 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 attribs = [];
+
+ for (var i in this._attributions) {
+ if (this._attributions[i]) {
+ attribs.push(i);
}
}
- options = L.setOptions(this, options);
-
- wmsParams.width = wmsParams.height = options.tileSize * (options.detectRetina && L.Browser.retina ? 2 : 1);
+ var prefixAndAttribs = [];
- this.wmsParams = wmsParams;
- },
+ if (this.options.prefix) {
+ prefixAndAttribs.push(this.options.prefix);
+ }
+ if (attribs.length) {
+ prefixAndAttribs.push(attribs.join(', '));
+ }
- onAdd: function (map) {
+ this._container.innerHTML = prefixAndAttribs.join(' | ');
+ }
+});
- this._crs = this.options.crs || map.options.crs;
- this._wmsVersion = parseFloat(this.wmsParams.version);
+// @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
+});
- var projectionKey = this._wmsVersion >= 1.3 ? 'crs' : 'srs';
- this.wmsParams[projectionKey] = this._crs.code;
+Map.addInitHook(function () {
+ if (this.options.attributionControl) {
+ new Attribution().addTo(this);
+ }
+});
- L.TileLayer.prototype.onAdd.call(this, map);
- },
+// @namespace Control.Attribution
+// @factory L.control.attribution(options: Control.Attribution options)
+// Creates an attribution control.
+var attribution = function (options) {
+ return new Attribution(options);
+};
- getTileUrl: function (coords) {
+Control.Layers = Layers;
+Control.Zoom = Zoom;
+Control.Scale = Scale;
+Control.Attribution = Attribution;
- var tileBounds = this._tileCoordsToBounds(coords),
- nw = this._crs.project(tileBounds.getNorthWest()),
- se = this._crs.project(tileBounds.getSouthEast()),
+control.layers = layers;
+control.zoom = zoom;
+control.scale = scale;
+control.attribution = attribution;
- 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(','),
+/*
+ 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.
+*/
- url = L.TileLayer.prototype.getTileUrl.call(this, coords);
+// @class Handler
+// @aka L.Handler
+// Abstract class for map interaction handlers
- return url +
- L.Util.getParamString(this.wmsParams, url, this.options.uppercase) +
- (this.options.uppercase ? '&BBOX=' : '&bbox=') + bbox;
+var Handler = Class.extend({
+ initialize: function (map) {
+ this._map = map;
},
- // @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) {
+ // @method enable(): this
+ // Enables the handler
+ enable: function () {
+ if (this._enabled) { return this; }
- L.extend(this.wmsParams, params);
+ this._enabled = true;
+ this.addHooks();
+ return this;
+ },
- if (!noRedraw) {
- this.redraw();
- }
+ // @method disable(): this
+ // Disables the handler
+ disable: function () {
+ if (!this._enabled) { return this; }
+ this._enabled = false;
+ this.removeHooks();
return this;
+ },
+
+ // @method enabled(): Boolean
+ // Returns `true` if the handler is enabled
+ enabled: function () {
+ return !!this._enabled;
}
-});
+ // @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.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);
+// @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;
};
-
+var Mixin = {Events: Events};
/*
- * @class ImageOverlay
- * @aka L.ImageOverlay
- * @inherits Interactive layer
+ * @class Draggable
+ * @aka L.Draggable
+ * @inherits Evented
*
- * Used to load and display a single image over specific bounds of the map. Extends `Layer`.
+ * 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 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);
+ * var draggable = new L.Draggable(elementToDrag);
+ * draggable.enable();
* ```
*/
-L.ImageOverlay = L.Layer.extend({
+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'
+};
- // @section
- // @aka ImageOverlay options
- options: {
- // @option opacity: Number = 1.0
- // The opacity of the image overlay.
- opacity: 1,
- // @option alt: String = ''
- // Text for the `alt` attribute of the image (useful for accessibility).
- alt: '',
+var Draggable = Evented.extend({
- // @option interactive: Boolean = false
- // If `true`, the image overlay will emit [mouse events](#interactive-layer) when clicked or hovered.
- interactive: false,
+ 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
+ },
- // @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
+ // @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$$1, options) {
+ setOptions(this, options);
+
+ this._element = element;
+ this._dragStartTarget = dragStartTarget || element;
+ this._preventOutline = preventOutline$$1;
},
- initialize: function (url, bounds, options) { // (String, LatLngBounds, Object)
- this._url = url;
- this._bounds = L.latLngBounds(bounds);
+ // @method enable()
+ // Enables the dragging ability
+ enable: function () {
+ if (this._enabled) { return; }
+
+ on(this._dragStartTarget, START, this._onDown, this);
- L.setOptions(this, options);
+ this._enabled = true;
},
- onAdd: function () {
- if (!this._image) {
- this._initImage();
+ // @method disable()
+ // Disables the dragging ability
+ disable: function () {
+ if (!this._enabled) { return; }
- if (this.options.opacity < 1) {
- this._updateOpacity();
- }
+ // If we're currently dragging this draggable,
+ // disabling it counts as first ending the drag.
+ if (Draggable._dragging === this) {
+ this.finishDrag();
}
- if (this.options.interactive) {
- L.DomUtil.addClass(this._image, 'leaflet-interactive');
- this.addInteractiveTarget(this._image);
- }
+ off(this._dragStartTarget, START, this._onDown, this);
- this.getPane().appendChild(this._image);
- this._reset();
+ this._enabled = false;
+ this._moved = false;
},
- onRemove: function () {
- L.DomUtil.remove(this._image);
- if (this.options.interactive) {
- this.removeInteractiveTarget(this._image);
- }
- },
+ _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; }
- // @method setOpacity(opacity: Number): this
- // Sets the opacity of the overlay.
- setOpacity: function (opacity) {
- this.options.opacity = opacity;
+ this._moved = false;
- if (this._image) {
- this._updateOpacity();
- }
- return this;
- },
+ if (hasClass(this._element, 'leaflet-zoom-anim')) { return; }
- setStyle: function (styleOpts) {
- if (styleOpts.opacity) {
- this.setOpacity(styleOpts.opacity);
+ if (Draggable._dragging || e.shiftKey || ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; }
+ Draggable._dragging = this; // Prevent dragging multiple objects at once.
+
+ if (this._preventOutline) {
+ preventOutline(this._element);
}
- return this;
- },
- // @method bringToFront(): this
- // Brings the layer to the top of all overlays.
- bringToFront: function () {
- if (this._map) {
- L.DomUtil.toFront(this._image);
- }
- return this;
- },
+ disableImageDrag();
+ disableTextSelection();
- // @method bringToBack(): this
- // Brings the layer to the bottom of all overlays.
- bringToBack: function () {
- if (this._map) {
- L.DomUtil.toBack(this._image);
- }
- return this;
- },
+ if (this._moving) { return; }
- // @method setUrl(url: String): this
- // Changes the URL of the image.
- setUrl: function (url) {
- this._url = url;
+ // @event down: Event
+ // Fired when a drag is about to start.
+ this.fire('down');
- if (this._image) {
- this._image.src = url;
- }
- return this;
- },
+ var first = e.touches ? e.touches[0] : e,
+ sizedParent = getSizedParentNode(this._element);
- setBounds: function (bounds) {
- this._bounds = bounds;
+ this._startPoint = new Point(first.clientX, first.clientY);
- if (this._map) {
- this._reset();
- }
- return this;
+ // Cache the scale, so that we can continuously compensate for it during drag (_onMove).
+ this._parentScale = getScale(sizedParent);
+
+ on(document, MOVE[e.type], this._onMove, this);
+ on(document, END[e.type], this._onUp, this);
},
- getEvents: function () {
- var events = {
- zoom: this._reset,
- viewreset: this._reset
- };
+ _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; }
- if (this._zoomAnimated) {
- events.zoomanim = this._animateZoom;
+ if (e.touches && e.touches.length > 1) {
+ this._moved = true;
+ return;
}
- return events;
- },
+ var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e),
+ offset = new Point(first.clientX, first.clientY)._subtract(this._startPoint);
- getBounds: function () {
- return this._bounds;
- },
+ if (!offset.x && !offset.y) { return; }
+ if (Math.abs(offset.x) + Math.abs(offset.y) < this.options.clickTolerance) { return; }
- getElement: function () {
- return this._image;
- },
+ // 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;
- _initImage: function () {
- var img = this._image = L.DomUtil.create('img',
- 'leaflet-image-layer ' + (this._zoomAnimated ? 'leaflet-zoom-animated' : ''));
+ preventDefault(e);
- img.onselectstart = L.Util.falseFn;
- img.onmousemove = L.Util.falseFn;
+ if (!this._moved) {
+ // @event dragstart: Event
+ // Fired when a drag starts
+ this.fire('dragstart');
- img.onload = L.bind(this.fire, this, 'load');
+ this._moved = true;
+ this._startPos = getPosition(this._element).subtract(offset);
+
+ addClass(document.body, 'leaflet-dragging');
- if (this.options.crossOrigin) {
- img.crossOrigin = '';
+ 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');
}
- img.src = this._url;
- img.alt = this.options.alt;
+ this._newPos = this._startPos.add(offset);
+ this._moving = true;
+
+ cancelAnimFrame(this._animRequest);
+ this._lastEvent = e;
+ this._animRequest = requestAnimFrame(this._updatePosition, this, true);
},
- _animateZoom: function (e) {
- var scale = this._map.getZoomScale(e.zoom),
- offset = this._map._latLngBoundsToNewLayerBounds(this._bounds, e.zoom, e.center).min;
+ _updatePosition: function () {
+ var e = {originalEvent: this._lastEvent};
+
+ // @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);
- L.DomUtil.setTransform(this._image, offset, scale);
+ // @event drag: Event
+ // Fired continuously during dragging.
+ this.fire('drag', e);
},
- _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();
+ _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();
+ },
- L.DomUtil.setPosition(image, bounds.min);
+ finishDrag: function () {
+ removeClass(document.body, 'leaflet-dragging');
- image.style.width = size.x + 'px';
- image.style.height = size.y + 'px';
- },
+ if (this._lastTarget) {
+ removeClass(this._lastTarget, 'leaflet-drag-target');
+ this._lastTarget = null;
+ }
- _updateOpacity: function () {
- L.DomUtil.setOpacity(this._image, this.options.opacity);
- }
-});
+ for (var i in MOVE) {
+ off(document, MOVE[i], this._onMove, this);
+ off(document, END[i], this._onUp, this);
+ }
-// @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);
-};
+ enableImageDrag();
+ enableTextSelection();
+
+ if (this._moved && this._moving) {
+ // ensure drag is not fired after dragend
+ cancelAnimFrame(this._animRequest);
+
+ // @event dragend: DragEndEvent
+ // Fired when the drag ends.
+ this.fire('dragend', {
+ distance: this._newPos.distanceTo(this._startPos)
+ });
+ }
+ this._moving = false;
+ Draggable._dragging = false;
+ }
+});
/*
- * @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);
- * ```
- *
- * `L.Icon.Default` extends `L.Icon` and is the blue icon Leaflet uses for markers by default.
+ * @namespace LineUtil
*
+ * Various utility functions for polyline points processing, used by Leaflet internally to make polylines lightning-fast.
*/
-L.Icon = L.Class.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 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.
- */
+ var sqTolerance = tolerance * tolerance;
- initialize: function (options) {
- L.setOptions(this, options);
- },
+ // stage 1: vertex reduction
+ points = _reducePoints(points, sqTolerance);
- // @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);
- },
+ // stage 2: Douglas-Peucker simplification
+ points = _simplifyDP(points, sqTolerance);
- // @method createShadow(oldIcon?: HTMLElement): HTMLElement
- // As `createIcon`, but for the shadow beneath it.
- createShadow: function (oldIcon) {
- return this._createIcon('shadow', oldIcon);
- },
+ return points;
+}
- _createIcon: function (name, oldIcon) {
- var src = this._getIconUrl(name);
+// @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));
+}
- if (!src) {
- if (name === 'icon') {
- throw new Error('iconUrl not set in Icon options (see the docs).');
- }
- return null;
- }
+// @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);
+}
- var img = this._createImg(src, oldIcon && oldIcon.tagName === 'IMG' ? oldIcon : null);
- this._setIconStyles(img, name);
+// Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm
+function _simplifyDP(points, sqTolerance) {
- return img;
- },
+ var len = points.length,
+ ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array,
+ markers = new ArrayConstructor(len);
- _setIconStyles: function (img, name) {
- var options = this.options;
- var sizeOption = options[name + 'Size'];
+ markers[0] = markers[len - 1] = 1;
- if (typeof sizeOption === 'number') {
- sizeOption = [sizeOption, sizeOption];
+ _simplifyDPStep(points, markers, sqTolerance, 0, len - 1);
+
+ var i,
+ newPoints = [];
+
+ for (i = 0; i < len; i++) {
+ if (markers[i]) {
+ newPoints.push(points[i]);
}
+ }
- var size = L.point(sizeOption),
- anchor = L.point(name === 'shadow' && options.shadowAnchor || options.iconAnchor ||
- size && size.divideBy(2, true));
+ return newPoints;
+}
- img.className = 'leaflet-marker-' + name + ' ' + (options.className || '');
+function _simplifyDPStep(points, markers, sqTolerance, first, last) {
- if (anchor) {
- img.style.marginLeft = (-anchor.x) + 'px';
- img.style.marginTop = (-anchor.y) + 'px';
- }
+ var maxSqDist = 0,
+ index, i, sqDist;
- if (size) {
- img.style.width = size.x + 'px';
- img.style.height = size.y + 'px';
+ for (i = first + 1; i <= last - 1; i++) {
+ sqDist = _sqClosestPointOnSegment(points[i], points[first], points[last], true);
+
+ if (sqDist > maxSqDist) {
+ index = i;
+ maxSqDist = sqDist;
}
- },
+ }
- _createImg: function (src, el) {
- el = el || document.createElement('img');
- el.src = src;
- return el;
- },
+ if (maxSqDist > sqTolerance) {
+ markers[index] = 1;
- _getIconUrl: function (name) {
- return L.Browser.retina && this.options[name + 'RetinaUrl'] || this.options[name + 'Url'];
+ _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]];
-// @factory L.icon(options: Icon options)
-// Creates an icon instance with the given options.
-L.icon = function (options) {
- return new L.Icon(options);
-};
+ 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;
+ }
+ }
+ if (prev < len - 1) {
+ reducedPoints.push(points[len - 1]);
+ }
+ return reducedPoints;
+}
+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),
-/*
- * @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.
- */
+ codeOut, p, newCode;
-L.Icon.Default = L.Icon.extend({
+ // save 2nd code to avoid calculating it on the next segment
+ _lastCode = codeB;
- 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]
- },
+ while (true) {
+ // if a,b is inside the clip window (trivial accept)
+ if (!(codeA | codeB)) {
+ return [a, b];
+ }
- _getIconUrl: function (name) {
- if (!L.Icon.Default.imagePath) { // Deprecated, backwards-compatibility only
- L.Icon.Default.imagePath = this._detectIconPath();
+ // if a,b is outside the clip window (trivial reject)
+ if (codeA & codeB) {
+ return false;
}
- // @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);
- },
+ // other cases
+ codeOut = codeA || codeB;
+ p = _getEdgeIntersection(a, b, codeOut, bounds, round);
+ newCode = _getBitCode(p, bounds);
- _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
+ if (codeOut === codeA) {
+ a = p;
+ codeA = newCode;
+ } else {
+ b = p;
+ codeB = newCode;
+ }
+ }
+}
- document.body.removeChild(el);
+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;
- return path.indexOf('url') === 0 ?
- path.replace(/^url\([\"\']?/, '').replace(/marker-icon\.png[\"\']?\)$/, '') : '';
- }
-});
+ if (code & 8) { // top
+ x = a.x + dx * (max.y - a.y) / dy;
+ y = max.y;
+ } else if (code & 4) { // bottom
+ x = a.x + dx * (min.y - a.y) / dy;
+ y = min.y;
+ } else if (code & 2) { // right
+ x = max.x;
+ y = a.y + dy * (max.x - a.x) / dx;
-/*
- * @class Marker
- * @inherits Interactive layer
- * @aka L.Marker
- * L.Marker is used to display clickable/draggable icons on the map. Extends `Layer`.
- *
- * @example
- *
- * ```js
- * L.marker([50.5, 30.5]).addTo(map);
- * ```
- */
+ } else if (code & 1) { // left
+ x = min.x;
+ y = a.y + dy * (min.x - a.x) / dx;
+ }
-L.Marker = L.Layer.extend({
+ return new Point(x, y, round);
+}
- // @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(),
+function _getBitCode(p, bounds) {
+ var code = 0;
- // Option inherited from "Interactive layer" abstract class
- interactive: true,
+ if (p.x < bounds.min.x) { // left
+ code |= 1;
+ } else if (p.x > bounds.max.x) { // right
+ code |= 2;
+ }
- // @option draggable: Boolean = false
- // Whether the marker is draggable with mouse/touch or not.
- draggable: false,
+ if (p.y < bounds.min.y) { // bottom
+ code |= 4;
+ } else if (p.y > bounds.max.y) { // top
+ code |= 8;
+ }
- // @option keyboard: Boolean = true
- // Whether the marker can be tabbed to with a keyboard and clicked by pressing enter.
- keyboard: true,
+ return code;
+}
- // @option title: String = ''
- // Text for the browser tooltip that appear on marker hover (no tooltip by default).
- title: '',
+// 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;
+}
- // @option alt: String = ''
- // Text for the `alt` attribute of the icon image (useful for accessibility).
- alt: '',
+// 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;
+ }
+ }
- // @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,
+ dx = p.x - x;
+ dy = p.y - y;
- // @option opacity: Number = 1.0
- // The opacity of the marker.
- opacity: 1,
+ return sqDist ? dx * dx + dy * dy : new Point(x, y);
+}
- // @option riseOnHover: Boolean = false
- // If `true`, the marker will get on top of others when you hover the mouse over it.
- riseOnHover: false,
- // @option riseOffset: Number = 250
- // The z-index offset used for the `riseOnHover` feature.
- riseOffset: 250,
+// @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');
+}
- // @option pane: String = 'markerPane'
- // `Map pane` where the markers icon will be added.
- pane: 'markerPane',
+function _flat(latlngs) {
+ console.warn('Deprecated use of _flat, please use L.LineUtil.isFlat instead.');
+ return isFlat(latlngs);
+}
- // FIXME: shadowPane is no longer a valid option
- nonBubblingEvents: ['click', 'dblclick', 'mouseover', 'mouseout', 'contextmenu']
- },
- /* @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:
- */
+var LineUtil = (Object.freeze || Object)({
+ simplify: simplify,
+ pointToSegmentDistance: pointToSegmentDistance,
+ closestPointOnSegment: closestPointOnSegment,
+ clipSegment: clipSegment,
+ _getEdgeIntersection: _getEdgeIntersection,
+ _getBitCode: _getBitCode,
+ _sqClosestPointOnSegment: _sqClosestPointOnSegment,
+ isFlat: isFlat,
+ _flat: _flat
+});
- initialize: function (latlng, options) {
- L.setOptions(this, options);
- this._latlng = L.latLng(latlng);
- },
+/*
+ * @namespace PolyUtil
+ * Various utility functions for polygon geometries.
+ */
- onAdd: function (map) {
- this._zoomAnimated = this._zoomAnimated && map.options.markerZoomAnimation;
+/* @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;
- if (this._zoomAnimated) {
- map.on('zoomanim', this._animateZoom, this);
- }
+ for (i = 0, len = points.length; i < len; i++) {
+ points[i]._code = _getBitCode(points[i], bounds);
+ }
- this._initIcon();
- this.update();
- },
+ // for each edge (left, bottom, right, top)
+ for (k = 0; k < 4; k++) {
+ edge = edges[k];
+ clippedPoints = [];
- onRemove: function (map) {
- if (this.dragging && this.dragging.enabled()) {
- this.options.draggable = true;
- this.dragging.removeHooks();
- }
+ for (i = 0, len = points.length, j = len - 1; i < len; j = i++) {
+ a = points[i];
+ b = points[j];
- if (this._zoomAnimated) {
- map.off('zoomanim', this._animateZoom, this);
+ // 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);
+
+ // 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;
+ }
- this._removeIcon();
- this._removeShadow();
- },
+ return points;
+}
- getEvents: function () {
- return {
- zoom: this.update,
- viewreset: this.update
- };
- },
- // @method getLatLng: LatLng
- // Returns the current geographical position of the marker.
- getLatLng: function () {
- return this._latlng;
- },
+var PolyUtil = (Object.freeze || Object)({
+ clipPolygon: clipPolygon
+});
- // @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();
+/*
+ * @namespace Projection
+ * @section
+ * Leaflet comes with a set of already defined Projections out of the box:
+ *
+ * @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.
+ */
- // @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});
+var LonLat = {
+ project: function (latlng) {
+ return new Point(latlng.lng, latlng.lat);
},
- // @method setZIndexOffset(offset: Number): this
- // Changes the [zIndex offset](#marker-zindexoffset) of the marker.
- setZIndexOffset: function (offset) {
- this.options.zIndexOffset = offset;
- return this.update();
+ unproject: function (point) {
+ return new LatLng(point.y, point.x);
},
- // @method setIcon(icon: Icon): this
- // Changes the marker icon.
- setIcon: function (icon) {
+ bounds: new Bounds([-180, -90], [180, 90])
+};
- this.options.icon = icon;
+/*
+ * @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.
+ */
- if (this._map) {
- this._initIcon();
- this.update();
- }
+var Mercator = {
+ R: 6378137,
+ R_MINOR: 6356752.314245179,
- if (this._popup) {
- this.bindPopup(this._popup, this._popup.options);
- }
+ bounds: new Bounds([-20037508.34279, -15496570.73972], [20037508.34279, 18764656.23138]),
- return this;
- },
+ 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);
- getElement: function () {
- return this._icon;
+ 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);
},
- update: function () {
+ 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 (this._icon) {
- var pos = this._map.latLngToLayerPoint(this._latlng).round();
- this._setPos(pos);
+ for (var i = 0, dphi = 0.1, con; i < 15 && Math.abs(dphi) > 1e-7; i++) {
+ con = e * Math.sin(phi);
+ con = Math.pow((1 - con) / (1 + con), e / 2);
+ dphi = Math.PI / 2 - 2 * Math.atan(ts * con) - phi;
+ phi += dphi;
}
- return this;
- },
-
- _initIcon: function () {
- var options = this.options,
- classToAdd = 'leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');
+ return new LatLng(phi * d, point.x * d / r);
+ }
+};
- var icon = options.icon.createIcon(this._icon),
- addIcon = false;
+/*
+ * @class Projection
- // 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;
+ * 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 (options.title) {
- icon.title = options.title;
- }
- if (options.alt) {
- icon.alt = options.alt;
- }
- }
+ * @property bounds: Bounds
+ * The bounds (specified in CRS units) where the projection is valid
- L.DomUtil.addClass(icon, classToAdd);
+ * @method project(latlng: LatLng): Point
+ * Projects geographical coordinates into a 2D point.
+ * Only accepts actual `L.LatLng` instances, not arrays.
- if (options.keyboard) {
- icon.tabIndex = '0';
- }
+ * @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.
- this._icon = icon;
+ * 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.
- if (options.riseOnHover) {
- this.on({
- mouseover: this._bringToFront,
- mouseout: this._resetZIndex
- });
- }
+ */
- var newShadow = options.icon.createShadow(this._shadow),
- addShadow = false;
- if (newShadow !== this._shadow) {
- this._removeShadow();
- addShadow = true;
- }
- if (newShadow) {
- L.DomUtil.addClass(newShadow, classToAdd);
- }
- this._shadow = newShadow;
+var index = (Object.freeze || Object)({
+ LonLat: LonLat,
+ Mercator: Mercator,
+ SphericalMercator: SphericalMercator
+});
- if (options.opacity < 1) {
- this._updateOpacity();
- }
+/*
+ * @namespace CRS
+ * @crs L.CRS.EPSG3395
+ *
+ * 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);
+ }())
+});
- if (addIcon) {
- this.getPane().appendChild(this._icon);
- }
- this._initInteraction();
- if (newShadow && addShadow) {
- this.getPane('shadowPane').appendChild(this._shadow);
- }
- },
+/*
+ * @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.
+ */
- _removeIcon: function () {
- if (this.options.riseOnHover) {
- this.off({
- mouseover: this._bringToFront,
- mouseout: this._resetZIndex
- });
- }
+var EPSG4326 = extend({}, Earth, {
+ code: 'EPSG:4326',
+ projection: LonLat,
+ transformation: toTransformation(1 / 180, 1, -1 / 180, 0.5)
+});
- L.DomUtil.remove(this._icon);
- this.removeInteractiveTarget(this._icon);
+/*
+ * @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.
+ */
- this._icon = null;
- },
+var Simple = extend({}, CRS, {
+ projection: LonLat,
+ transformation: toTransformation(1, 0, -1, 0),
- _removeShadow: function () {
- if (this._shadow) {
- L.DomUtil.remove(this._shadow);
- }
- this._shadow = null;
+ scale: function (zoom) {
+ return Math.pow(2, zoom);
},
- _setPos: function (pos) {
- L.DomUtil.setPosition(this._icon, pos);
-
- if (this._shadow) {
- L.DomUtil.setPosition(this._shadow, pos);
- }
+ zoom: function (scale) {
+ return Math.log(scale) / Math.LN2;
+ },
- this._zIndex = pos.y + this.options.zIndexOffset;
+ distance: function (latlng1, latlng2) {
+ var dx = latlng2.lng - latlng1.lng,
+ dy = latlng2.lat - latlng1.lat;
- this._resetZIndex();
+ return Math.sqrt(dx * dx + dy * dy);
},
- _updateZIndex: function (offset) {
- this._icon.style.zIndex = this._zIndex + offset;
- },
+ infinite: true
+});
- _animateZoom: function (opt) {
- var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round();
+CRS.Earth = Earth;
+CRS.EPSG3395 = EPSG3395;
+CRS.EPSG3857 = EPSG3857;
+CRS.EPSG900913 = EPSG900913;
+CRS.EPSG4326 = EPSG4326;
+CRS.Simple = Simple;
- this._setPos(pos);
- },
+/*
+ * @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
+ */
- _initInteraction: function () {
- if (!this.options.interactive) { return; }
+var Layer = Evented.extend({
- L.DomUtil.addClass(this._icon, 'leaflet-interactive');
+ // 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',
- this.addInteractiveTarget(this._icon);
+ // @option attribution: String = null
+ // String to be shown in the attribution control, describes the layer data, e.g. "© Mapbox".
+ attribution: null,
- if (L.Handler.MarkerDrag) {
- var draggable = this.options.draggable;
- if (this.dragging) {
- draggable = this.dragging.enabled();
- this.dragging.disable();
- }
+ bubblingMouseEvents: true
+ },
- this.dragging = new L.Handler.MarkerDrag(this);
+ /* @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;
+ },
- if (draggable) {
- this.dragging.enable();
- }
- }
+ // @method remove: this
+ // Removes the layer from the map it is currently active on.
+ remove: function () {
+ return this.removeFrom(this._map || this._mapToAdd);
},
- // @method setOpacity(opacity: Number): this
- // Changes the opacity of the marker.
- setOpacity: function (opacity) {
- this.options.opacity = opacity;
- if (this._map) {
- this._updateOpacity();
+ // @method removeFrom(map: Map): this
+ // Removes the layer from the given map
+ removeFrom: function (obj) {
+ if (obj) {
+ obj.removeLayer(this);
}
-
return this;
},
- _updateOpacity: function () {
- var opacity = this.options.opacity;
-
- L.DomUtil.setOpacity(this._icon, opacity);
-
- if (this._shadow) {
- L.DomUtil.setOpacity(this._shadow, opacity);
- }
+ // @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);
},
- _bringToFront: function () {
- this._updateZIndex(this.options.riseOffset);
+ addInteractiveTarget: function (targetEl) {
+ this._map._targets[stamp(targetEl)] = this;
+ return this;
},
- _resetZIndex: function () {
- this._updateZIndex(0);
+ removeInteractiveTarget: function (targetEl) {
+ delete this._map._targets[stamp(targetEl)];
+ return this;
},
- _getPopupAnchor: function () {
- return this.options.icon.options.popupAnchor || [0, 0];
+ // @method getAttribution: String
+ // Used by the `attribution control`, returns the [attribution option](#gridlayer-attribution).
+ getAttribution: function () {
+ return this.options.attribution;
},
- _getTooltipAnchor: function () {
- return this.options.icon.options.tooltipAnchor || [0, 0];
- }
-});
+ _layerAdd: function (e) {
+ var map = e.target;
+ // check in case layer gets added and then removed before the map is ready
+ if (!map.hasLayer(this)) { return; }
-// factory L.marker(latlng: LatLng, options? : Marker options)
+ this._map = map;
+ this._zoomAnimated = map._zoomAnimated;
-// @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);
-};
+ if (this.getEvents) {
+ var events = this.getEvents();
+ map.on(events, this);
+ this.once('remove', function () {
+ map.off(events, this);
+ }, this);
+ }
+ this.onAdd(map);
+ if (this.getAttribution && map.attributionControl) {
+ map.attributionControl.addAttribution(this.getAttribution());
+ }
-/*
- * @class DivIcon
- * @aka L.DivIcon
- * @inherits Icon
+ this.fire('add');
+ map.fire('layeradd', {layer: this});
+ }
+});
+
+/* @section Extension methods
+ * @uninheritable
*
- * 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.
+ * Every layer should extend from `L.Layer` and (re-)implement the following methods.
*
- * @example
- * ```js
- * var myIcon = L.divIcon({className: 'my-div-icon'});
- * // you can set .my-div-icon styles in CSS
+ * @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).
*
- * L.marker([50.505, 30.57], {icon: myIcon}).addTo(map);
- * ```
+ * @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).
*
- * By default, it has a 'leaflet-div-icon' CSS class and is styled as a little white square with a shadow.
+ * @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.
*/
-L.DivIcon = L.Icon.extend({
- options: {
- // @section
- // @aka DivIcon options
- iconSize: [12, 12], // also can be set through CSS
- // iconAnchor: (Point),
- // popupAnchor: (Point),
+/* @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.');
+ }
- // @option html: String = ''
- // Custom HTML code to put inside the div element, empty by default.
- html: false,
+ var id = stamp(layer);
+ if (this._layers[id]) { return this; }
+ this._layers[id] = layer;
- // @option bgPos: Point = [0, 0]
- // Optional relative position of the background, in pixels
- bgPos: null,
+ layer._mapToAdd = this;
- className: 'leaflet-div-icon'
+ if (layer.beforeAdd) {
+ layer.beforeAdd(this);
+ }
+
+ this.whenReady(layer._layerAdd, layer);
+
+ return this;
},
- createIcon: function (oldIcon) {
- var div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'),
- options = this.options;
+ // @method removeLayer(layer: Layer): this
+ // Removes the given layer from the map.
+ removeLayer: function (layer) {
+ var id = stamp(layer);
- div.innerHTML = options.html !== false ? options.html : '';
+ if (!this._layers[id]) { return this; }
- if (options.bgPos) {
- var bgPos = L.point(options.bgPos);
- div.style.backgroundPosition = (-bgPos.x) + 'px ' + (-bgPos.y) + 'px';
+ if (this._loaded) {
+ layer.onRemove(this);
}
- this._setIconStyles(div, 'icon');
- return div;
- },
+ if (layer.getAttribution && this.attributionControl) {
+ this.attributionControl.removeAttribution(layer.getAttribution());
+ }
- createShadow: function () {
- return null;
- }
-});
+ delete this._layers[id];
-// @factory L.divIcon(options: DivIcon options)
-// Creates a `DivIcon` instance with the given options.
-L.divIcon = function (options) {
- return new L.DivIcon(options);
-};
+ if (this._loaded) {
+ this.fire('layerremove', {layer: layer});
+ layer.fire('remove');
+ }
+ layer._map = layer._mapToAdd = null;
+ return this;
+ },
-/*
- * @class DivOverlay
- * @inherits Layer
- * @aka L.DivOverlay
- * Base model for L.Popup and L.Tooltip. Inherit from it for custom popup like plugins.
- */
+ // @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);
+ },
-// @namespace DivOverlay
-L.DivOverlay = L.Layer.extend({
+ /* @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;
+ },
- // @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],
+ _addLayers: function (layers) {
+ layers = layers ? (isArray(layers) ? layers : [layers]) : [];
- // @option className: String = ''
- // A custom CSS class name to assign to the popup.
- className: '',
+ for (var i = 0, len = layers.length; i < len; i++) {
+ this.addLayer(layers[i]);
+ }
+ },
- // @option pane: String = 'popupPane'
- // `Map pane` where the popup will be added.
- pane: 'popupPane'
+ _addZoomLimit: function (layer) {
+ if (isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom)) {
+ this._zoomBoundLayers[stamp(layer)] = layer;
+ this._updateZoomLevels();
+ }
},
- initialize: function (options, source) {
- L.setOptions(this, options);
+ _removeZoomLimit: function (layer) {
+ var id = stamp(layer);
- this._source = source;
+ if (this._zoomBoundLayers[id]) {
+ delete this._zoomBoundLayers[id];
+ this._updateZoomLevels();
+ }
},
- onAdd: function (map) {
- this._zoomAnimated = map._zoomAnimated;
+ _updateZoomLevels: function () {
+ var minZoom = Infinity,
+ maxZoom = -Infinity,
+ oldZoomSpan = this._getZoomSpan();
- if (!this._container) {
- this._initLayout();
- }
+ for (var i in this._zoomBoundLayers) {
+ var options = this._zoomBoundLayers[i].options;
- if (map._fadeAnimated) {
- L.DomUtil.setOpacity(this._container, 0);
+ minZoom = options.minZoom === undefined ? minZoom : Math.min(minZoom, options.minZoom);
+ maxZoom = options.maxZoom === undefined ? maxZoom : Math.max(maxZoom, options.maxZoom);
}
- clearTimeout(this._removeTimeout);
- this.getPane().appendChild(this._container);
- this.update();
+ this._layersMaxZoom = maxZoom === -Infinity ? undefined : maxZoom;
+ this._layersMinZoom = minZoom === Infinity ? undefined : minZoom;
- if (map._fadeAnimated) {
- L.DomUtil.setOpacity(this._container, 1);
+ // @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');
}
- this.bringToFront();
- },
+ 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);
+ }
+ }
+});
- 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);
+/*
+ * @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({
+
+ initialize: function (layers, options) {
+ setOptions(this, options);
+
+ this._layers = {};
+
+ var i, len;
+
+ if (layers) {
+ for (i = 0, len = layers.length; i < len; i++) {
+ this.addLayer(layers[i]);
+ }
}
},
- // @namespace Popup
- // @method getLatLng: LatLng
- // Returns the geographical point of popup.
- getLatLng: function () {
- return this._latlng;
- },
+ // @method addLayer(layer: Layer): this
+ // Adds the given layer to the group.
+ addLayer: function (layer) {
+ var id = this.getLayerId(layer);
+
+ this._layers[id] = layer;
- // @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();
+ this._map.addLayer(layer);
}
+
return this;
},
- // @method getContent: String|HTMLElement
- // Returns the content of the popup.
- getContent: function () {
- return this._content;
- },
+ // @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]);
+ }
+
+ delete this._layers[id];
- // @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;
},
- // @method getElement: String|HTMLElement
- // Alias for [getContent()](#popup-getcontent)
- getElement: function () {
- return this._container;
+ // @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);
},
- // @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; }
+ // @method clearLayers(): this
+ // Removes all the layers from the group.
+ clearLayers: function () {
+ return this.eachLayer(this.removeLayer, this);
+ },
- this._container.style.visibility = 'hidden';
+ // @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;
- this._updateContent();
- this._updateLayout();
- this._updatePosition();
+ for (i in this._layers) {
+ layer = this._layers[i];
- this._container.style.visibility = '';
+ if (layer[methodName]) {
+ layer[methodName].apply(layer, args);
+ }
+ }
- this._adjustPan();
+ return this;
},
- getEvents: function () {
- var events = {
- zoom: this._updatePosition,
- viewreset: this._updatePosition
- };
-
- if (this._zoomAnimated) {
- events.zoomanim = this._animateZoom;
- }
- return events;
+ onAdd: function (map) {
+ this.eachLayer(map.addLayer, map);
},
- // @method isOpen: Boolean
- // Returns `true` when the popup is visible on the map.
- isOpen: function () {
- return !!this._map && this._map.hasLayer(this);
+ onRemove: function (map) {
+ this.eachLayer(map.removeLayer, map);
},
- // @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);
+ // @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;
},
- // @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;
+ // @method getLayer(id: Number): Layer
+ // Returns the layer with the given internal ID.
+ getLayer: function (id) {
+ return this._layers[id];
},
- _updateContent: function () {
- if (!this._content) { return; }
-
- var node = this._contentNode;
- var content = (typeof this._content === 'function') ? this._content(this._source || this) : this._content;
-
- if (typeof content === 'string') {
- node.innerHTML = content;
- } else {
- while (node.hasChildNodes()) {
- node.removeChild(node.firstChild);
- }
- node.appendChild(content);
- }
- this.fire('contentupdate');
+ // @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;
},
- _updatePosition: function () {
- if (!this._map) { return; }
-
- var pos = this._map.latLngToLayerPoint(this._latlng),
- offset = L.point(this.options.offset),
- anchor = this._getAnchor();
-
- if (this._zoomAnimated) {
- L.DomUtil.setPosition(this._container, pos.add(anchor));
- } else {
- offset = offset.add(pos).add(anchor);
- }
-
- 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';
+ // @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);
},
- _getAnchor: function () {
- return [0, 0];
+ // @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 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
+ * @class FeatureGroup
+ * @aka L.FeatureGroup
+ * @inherits LayerGroup
*
- * If you want to just bind a popup to marker click and then open it, it's really easy:
+ * 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
*
- * ```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:
+ * @example
*
* ```js
- * var popup = L.popup()
- * .setLatLng(latlng)
- * .setContent('<p>Hello world!<br />This is a nice popup.</p>')
- * .openOn(map);
+ * L.featureGroup([marker1, marker2, polyline])
+ * .bindPopup('Hello world!')
+ * .on('click', function() { alert('Clicked on a member of the group!'); })
+ * .addTo(map);
* ```
*/
+var FeatureGroup = LayerGroup.extend({
-// @namespace Popup
-L.Popup = L.DivOverlay.extend({
-
- // @section
- // @aka Popup options
- options: {
- // @option maxWidth: Number = 300
- // Max width of the popup, in pixels.
- maxWidth: 300,
-
- // @option minWidth: Number = 50
- // Min width of the popup, in pixels.
- minWidth: 50,
-
- // @option maxHeight: Number = null
- // If set, creates a scrollable container of the given height
- // inside a popup if its content exceeds it.
- maxHeight: null,
+ addLayer: function (layer) {
+ if (this.hasLayer(layer)) {
+ return this;
+ }
- // @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,
+ layer.addEventParent(this);
- // @option autoPanPaddingTopLeft: Point = null
- // The margin between the popup and the top left corner of the map
- // view after autopanning was performed.
- autoPanPaddingTopLeft: null,
+ LayerGroup.prototype.addLayer.call(this, layer);
- // @option autoPanPaddingBottomRight: Point = null
- // The margin between the popup and the bottom right corner of the map
- // view after autopanning was performed.
- autoPanPaddingBottomRight: null,
+ // @event layeradd: LayerEvent
+ // Fired when a layer is added to this `FeatureGroup`
+ return this.fire('layeradd', {layer: layer});
+ },
- // @option autoPanPadding: Point = Point(5, 5)
- // Equivalent of setting both top left and bottom right autopan padding to the same value.
- autoPanPadding: [5, 5],
+ removeLayer: function (layer) {
+ if (!this.hasLayer(layer)) {
+ return this;
+ }
+ if (layer in this._layers) {
+ layer = this._layers[layer];
+ }
- // @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,
+ layer.removeEventParent(this);
- // @option closeButton: Boolean = true
- // Controls the presence of a close button in the popup.
- closeButton: true,
+ LayerGroup.prototype.removeLayer.call(this, layer);
- // @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,
+ // @event layerremove: LayerEvent
+ // Fired when a layer is removed from this `FeatureGroup`
+ return this.fire('layerremove', {layer: layer});
+ },
- // @option className: String = ''
- // A custom CSS class name to assign to the popup.
- className: ''
+ // @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);
},
- // @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;
+ // @method bringToFront(): this
+ // Brings the layer group to the top of all other layers
+ bringToFront: function () {
+ return this.invoke('bringToFront');
},
- onAdd: function (map) {
- L.DivOverlay.prototype.onAdd.call(this, map);
+ // @method bringToBack(): this
+ // Brings the layer group to the back of all other layers
+ bringToBack: function () {
+ return this.invoke('bringToBack');
+ },
- // @namespace Map
- // @section Popup events
- // @event popupopen: PopupEvent
- // Fired when a popup is opened in the map
- map.fire('popupopen', {popup: this});
+ // @method getBounds(): LatLngBounds
+ // Returns the LatLngBounds of the Feature Group (created from bounds and coordinates of its children).
+ getBounds: function () {
+ var bounds = new LatLngBounds();
- 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);
- }
+ for (var id in this._layers) {
+ var layer = this._layers[id];
+ bounds.extend(layer.getBounds ? layer.getBounds() : layer.getLatLng());
}
- },
+ return bounds;
+ }
+});
- 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});
+// @factory L.featureGroup(layers: Layer[])
+// Create a feature group, optionally given an initial set of layers.
+var featureGroup = function (layers) {
+ return new FeatureGroup(layers);
+};
- 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);
- }
- }
- },
+/*
+ * @class Icon
+ * @aka L.Icon
+ *
+ * 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);
+ * ```
+ *
+ * `L.Icon.Default` extends `L.Icon` and is the blue icon Leaflet uses for markers by default.
+ *
+ */
- getEvents: function () {
- var events = L.DivOverlay.prototype.getEvents.call(this);
+var Icon = Class.extend({
- if ('closeOnClick' in this.options ? this.options.closeOnClick : this._map.options.closePopupOnClick) {
- events.preclick = this._close;
- }
+ /* @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.
+ */
- if (this.options.keepInView) {
- events.moveend = this._adjustPan;
- }
+ options: {
+ popupAnchor: [0, 0],
+ tooltipAnchor: [0, 0]
+ },
- return events;
+ initialize: function (options) {
+ setOptions(this, options);
},
- _close: function () {
- if (this._map) {
- this._map.closePopup(this);
- }
+ // @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);
},
- _initLayout: function () {
- var prefix = 'leaflet-popup',
- container = this._container = L.DomUtil.create('div',
- prefix + ' ' + (this.options.className || '') +
- ' leaflet-zoom-animated');
+ // @method createShadow(oldIcon?: HTMLElement): HTMLElement
+ // As `createIcon`, but for the shadow beneath it.
+ createShadow: function (oldIcon) {
+ return this._createIcon('shadow', oldIcon);
+ },
- if (this.options.closeButton) {
- var closeButton = this._closeButton = L.DomUtil.create('a', prefix + '-close-button', container);
- closeButton.href = '#close';
- closeButton.innerHTML = '×';
+ _createIcon: function (name, oldIcon) {
+ var src = this._getIconUrl(name);
- L.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this);
+ if (!src) {
+ if (name === 'icon') {
+ throw new Error('iconUrl not set in Icon options (see the docs).');
+ }
+ return null;
}
- var wrapper = this._wrapper = L.DomUtil.create('div', prefix + '-content-wrapper', container);
- this._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper);
-
- L.DomEvent
- .disableClickPropagation(wrapper)
- .disableScrollPropagation(this._contentNode)
- .on(wrapper, 'contextmenu', L.DomEvent.stopPropagation);
+ var img = this._createImg(src, oldIcon && oldIcon.tagName === 'IMG' ? oldIcon : null);
+ this._setIconStyles(img, name);
- this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container);
- this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer);
+ return img;
},
- _updateLayout: function () {
- var container = this._contentNode,
- style = container.style;
-
- style.width = '';
- style.whiteSpace = 'nowrap';
-
- var width = container.offsetWidth;
- width = Math.min(width, this.options.maxWidth);
- width = Math.max(width, this.options.minWidth);
+ _setIconStyles: function (img, name) {
+ var options = this.options;
+ var sizeOption = options[name + 'Size'];
- style.width = (width + 1) + 'px';
- style.whiteSpace = '';
+ if (typeof sizeOption === 'number') {
+ sizeOption = [sizeOption, sizeOption];
+ }
- style.height = '';
+ var size = toPoint(sizeOption),
+ anchor = toPoint(name === 'shadow' && options.shadowAnchor || options.iconAnchor ||
+ size && size.divideBy(2, true));
- var height = container.offsetHeight,
- maxHeight = this.options.maxHeight,
- scrolledClass = 'leaflet-popup-scrolled';
+ img.className = 'leaflet-marker-' + name + ' ' + (options.className || '');
- if (maxHeight && height > maxHeight) {
- style.height = maxHeight + 'px';
- L.DomUtil.addClass(container, scrolledClass);
- } else {
- L.DomUtil.removeClass(container, scrolledClass);
+ if (anchor) {
+ img.style.marginLeft = (-anchor.x) + 'px';
+ img.style.marginTop = (-anchor.y) + 'px';
}
- this._containerWidth = this._container.offsetWidth;
+ if (size) {
+ img.style.width = size.x + 'px';
+ img.style.height = size.y + 'px';
+ }
},
- _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));
+ _createImg: function (src, el) {
+ el = el || document.createElement('img');
+ el.src = src;
+ return el;
},
- _adjustPan: function () {
- if (!this.options.autoPan || (this._map._panAnim && this._map._panAnim._inProgress)) { return; }
+ _getIconUrl: function (name) {
+ return retina && this.options[name + 'RetinaUrl'] || this.options[name + 'Url'];
+ }
+});
- 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);
- layerPos._add(L.DomUtil.getPosition(this._container));
+// @factory L.icon(options: Icon options)
+// Creates an icon instance with the given options.
+function icon(options) {
+ return new Icon(options);
+}
- 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;
+/*
+ * @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.
+ */
- 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;
- }
+var IconDefault = Icon.extend({
- // @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]);
- }
+ 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]
},
- _onCloseButtonClick: function (e) {
- this._close();
- L.DomEvent.stop(e);
+ _getIconUrl: function (name) {
+ if (!IconDefault.imagePath) { // Deprecated, backwards-compatibility only
+ IconDefault.imagePath = this._detectIconPath();
+ }
+
+ // @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);
},
- _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]);
- }
+ _detectIconPath: function () {
+ var el = create$1('div', 'leaflet-default-icon-path', document.body);
+ var path = getStyle(el, 'background-image') ||
+ getStyle(el, 'backgroundImage'); // IE8
-});
+ document.body.removeChild(el);
-// @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);
-};
+ if (path === null || path.indexOf('url') !== 0) {
+ path = '';
+ } else {
+ path = path.replace(/^url\(["']?/, '').replace(/marker-icon\.png["']?\)$/, '');
+ }
+ return path;
+ }
+});
-/* @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.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable.
*/
-L.Map.mergeOptions({
- closePopupOnClick: true
-});
-// @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 (latlng) {
- popup.setLatLng(latlng);
- }
-
- if (this.hasLayer(popup)) {
- return this;
- }
-
- if (this._popup && this._popup.options.autoClose) {
- this.closePopup();
- }
-
- this._popup = popup;
- return this.addLayer(popup);
- },
-
- // @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;
- }
-});
-
-/*
- * @namespace Layer
- * @section Popup methods example
+/* @namespace Marker
+ * @section Interaction handlers
*
- * All layers share a set of methods convenient for binding popups to it.
+ * 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
- * var layer = L.Polygon(latlngs).bindPopup('Hi There!').addTo(map);
- * layer.openPopup();
- * layer.closePopup();
+ * marker.dragging.disable();
* ```
*
- * 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.
+ * @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)).
*/
-// @section Popup methods
-L.Layer.include({
+var MarkerDrag = Handler.extend({
+ initialize: function (marker) {
+ this._marker = marker;
+ },
- // @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) {
+ addHooks: function () {
+ var icon = this._marker._icon;
- 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);
+ if (!this._draggable) {
+ this._draggable = new Draggable(icon, icon, true);
}
- if (!this._popupHandlersAdded) {
- this.on({
- click: this._openPopup,
- remove: this.closePopup,
- move: this._movePopup
- });
- this._popupHandlersAdded = true;
- }
+ this._draggable.on({
+ dragstart: this._onDragStart,
+ predrag: this._onPreDrag,
+ drag: this._onDrag,
+ dragend: this._onDragEnd
+ }, this).enable();
- return this;
+ addClass(icon, 'leaflet-marker-draggable');
},
- // @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;
+ 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');
}
- return this;
},
- // @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;
- }
+ moved: function () {
+ return this._draggable && this._draggable._moved;
+ },
- if (layer instanceof L.FeatureGroup) {
- for (var id in this._layers) {
- layer = this._layers[id];
- break;
- }
- }
+ _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();
- if (!latlng) {
- latlng = layer.getCenter ? layer.getCenter() : layer.getLatLng();
- }
+ var panBounds = toBounds(
+ bounds.min._subtract(origin).add(padding),
+ bounds.max._subtract(origin).subtract(padding)
+ );
- if (this._popup && this._map) {
- // set popup source to this layer
- this._popup._source = layer;
+ 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),
- // update the popup (content, layout, ect...)
- this._popup.update();
+ (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);
- // open the popup on the map
- this._map.openPopup(this._popup, latlng);
- }
+ map.panBy(movement, {animate: false});
- return this;
- },
+ this._draggable._newPos._add(movement);
+ this._draggable._startPos._add(movement);
- // @method closePopup(): this
- // Closes the popup bound to this layer if it is open.
- closePopup: function () {
- if (this._popup) {
- this._popup._close();
- }
- return this;
- },
+ setPosition(marker._icon, this._draggable._newPos);
+ this._onDrag(e);
- // @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);
- }
+ this._panRequest = requestAnimFrame(this._adjustPan.bind(this, e));
}
- return this;
},
- // @method isPopupOpen(): boolean
- // Returns `true` if the popup bound to this layer is currently open.
- isPopupOpen: function () {
- return this._popup.isOpen();
- },
+ _onDragStart: function () {
+ // @section Dragging events
+ // @event dragstart: Event
+ // Fired when the user starts dragging the marker.
- // @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;
+ // @event movestart: Event
+ // Fired when the marker starts moving (because of dragging).
+
+ this._oldLatLng = this._marker.getLatLng();
+ this._marker
+ .closePopup()
+ .fire('movestart')
+ .fire('dragstart');
},
- // @method getPopup(): Popup
- // Returns the popup bound to this layer.
- getPopup: function () {
- return this._popup;
+ _onPreDrag: function (e) {
+ if (this._marker.options.autoPan) {
+ cancelAnimFrame(this._panRequest);
+ this._panRequest = requestAnimFrame(this._adjustPan.bind(this, e));
+ }
},
- _openPopup: function (e) {
- var layer = e.layer || e.target;
+ _onDrag: function (e) {
+ var marker = this._marker,
+ shadow = marker._shadow,
+ iconPos = getPosition(marker._icon),
+ latlng = marker._map.layerPointToLatLng(iconPos);
- if (!this._popup) {
- return;
+ // update shadow position
+ if (shadow) {
+ setPosition(shadow, iconPos);
}
- if (!this._map) {
- return;
- }
+ marker._latlng = latlng;
+ e.latlng = latlng;
+ e.oldLatLng = this._oldLatLng;
- // prevent map click
- L.DomEvent.stop(e);
+ // @event drag: Event
+ // Fired repeatedly while the user drags the marker.
+ marker
+ .fire('move', e)
+ .fire('drag', 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;
- }
+ _onDragEnd: function (e) {
+ // @event dragend: DragEndEvent
+ // Fired when the user stops dragging the marker.
- // 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);
- }
- },
+ cancelAnimFrame(this._panRequest);
- _movePopup: function (e) {
- this._popup.setLatLng(e.latlng);
+ // @event moveend: Event
+ // Fired when the marker stops moving (because of dragging).
+ delete this._oldLatLng;
+ this._marker
+ .fire('moveend')
+ .fire('dragend', e);
}
});
-
-
/*
- * @class Tooltip
- * @inherits DivOverlay
- * @aka L.Tooltip
- * Used to display small texts on top of map layers.
+ * @class Marker
+ * @inherits Interactive layer
+ * @aka L.Marker
+ * L.Marker is used to display clickable/draggable icons on the map. Extends `Layer`.
*
* @example
*
* ```js
- * marker.bindTooltip("my tooltip text").openTooltip();
+ * L.marker([50.5, 30.5]).addTo(map);
* ```
- * 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.
*/
-
-// @namespace Tooltip
-L.Tooltip = L.DivOverlay.extend({
+var Marker = Layer.extend({
// @section
- // @aka Tooltip options
+ // @aka Marker options
options: {
- // @option pane: String = 'tooltipPane'
- // `Map pane` where the tooltip will be added.
- pane: 'tooltipPane',
+ // @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 offset: Point = Point(0, 0)
- // Optional offset of the tooltip position.
- offset: [0, 0],
+ // Option inherited from "Interactive layer" abstract class
+ interactive: true,
- // @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',
-
- // @option permanent: Boolean = false
- // Whether to open the tooltip permanently or only on mouseover.
- permanent: false,
-
- // @option sticky: Boolean = false
- // If true, the tooltip will follow the mouse instead of being fixed at the feature center.
- sticky: false,
+ // @option keyboard: Boolean = true
+ // Whether the marker can be tabbed to with a keyboard and clicked by pressing enter.
+ keyboard: true,
- // @option interactive: Boolean = false
- // If true, the tooltip will listen to the feature events.
- interactive: false,
+ // @option title: String = ''
+ // Text for the browser tooltip that appear on marker hover (no tooltip by default).
+ title: '',
- // @option opacity: Number = 0.9
- // Tooltip container opacity.
- opacity: 0.9
- },
+ // @option alt: String = ''
+ // Text for the `alt` attribute of the icon image (useful for accessibility).
+ alt: '',
- onAdd: function (map) {
- L.DivOverlay.prototype.onAdd.call(this, map);
- this.setOpacity(this.options.opacity);
+ // @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,
- // @namespace Map
- // @section Tooltip events
- // @event tooltipopen: TooltipEvent
- // Fired when a tooltip is opened in the map.
- map.fire('tooltipopen', {tooltip: this});
+ // @option opacity: Number = 1.0
+ // The opacity of the marker.
+ opacity: 1,
- 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);
- }
- },
+ // @option riseOnHover: Boolean = false
+ // If `true`, the marker will get on top of others when you hover the mouse over it.
+ riseOnHover: false,
- onRemove: function (map) {
- L.DivOverlay.prototype.onRemove.call(this, map);
+ // @option riseOffset: Number = 250
+ // The z-index offset used for the `riseOnHover` feature.
+ riseOffset: 250,
- // @namespace Map
- // @section Tooltip events
- // @event tooltipclose: TooltipEvent
- // Fired when a tooltip in the map is closed.
- map.fire('tooltipclose', {tooltip: this});
+ // @option pane: String = 'markerPane'
+ // `Map pane` where the markers icon will be added.
+ pane: 'markerPane',
- 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);
- }
- },
+ // @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,
- getEvents: function () {
- var events = L.DivOverlay.prototype.getEvents.call(this);
+ // @section Draggable marker options
+ // @option draggable: Boolean = false
+ // Whether the marker is draggable with mouse/touch or not.
+ draggable: false,
- if (L.Browser.touch && !this.options.permanent) {
- events.preclick = this._close;
- }
+ // @option autoPan: Boolean = false
+ // Whether to pan the map when dragging this marker near its edge or not.
+ autoPan: false,
- return events;
- },
+ // @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],
- _close: function () {
- if (this._map) {
- this._map.closeTooltip(this);
- }
+ // @option autoPanSpeed: Number = 10
+ // Number of pixels the map should pan by.
+ autoPanSpeed: 10
},
- _initLayout: function () {
- var prefix = 'leaflet-tooltip',
- className = prefix + ' ' + (this.options.className || '') + ' leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');
+ /* @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:
+ */
- this._contentNode = this._container = L.DomUtil.create('div', className);
+ initialize: function (latlng, options) {
+ setOptions(this, options);
+ this._latlng = toLatLng(latlng);
},
- _updateLayout: function () {},
+ onAdd: function (map) {
+ this._zoomAnimated = this._zoomAnimated && map.options.markerZoomAnimation;
- _adjustPan: function () {},
+ if (this._zoomAnimated) {
+ map.on('zoomanim', this._animateZoom, this);
+ }
- _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();
+ this._initIcon();
+ this.update();
+ },
- 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));
+ onRemove: function (map) {
+ if (this.dragging && this.dragging.enabled()) {
+ this.options.draggable = true;
+ this.dragging.removeHooks();
}
+ delete this.dragging;
- 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);
- },
+ if (this._zoomAnimated) {
+ map.off('zoomanim', this._animateZoom, this);
+ }
- _updatePosition: function () {
- var pos = this._map.latLngToLayerPoint(this._latlng);
- this._setPosition(pos);
+ this._removeIcon();
+ this._removeShadow();
},
- setOpacity: function (opacity) {
- this.options.opacity = opacity;
-
- if (this._container) {
- L.DomUtil.setOpacity(this._container, opacity);
- }
+ getEvents: function () {
+ return {
+ zoom: this.update,
+ viewreset: this.update
+ };
},
- _animateZoom: function (e) {
- var pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center);
- this._setPosition(pos);
+ // @method getLatLng: LatLng
+ // Returns the current geographical position of the marker.
+ getLatLng: function () {
+ return this._latlng;
},
- _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 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});
+ },
-// @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);
-};
+ // @method setZIndexOffset(offset: Number): this
+ // Changes the [zIndex offset](#marker-zindexoffset) of the marker.
+ setZIndexOffset: function (offset) {
+ this.options.zIndexOffset = offset;
+ return this.update();
+ },
-// @namespace Map
-// @section Methods for Layers and Controls
-L.Map.include({
+ // @method setIcon(icon: Icon): this
+ // Changes the marker icon.
+ setIcon: function (icon) {
- // @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);
- }
+ this.options.icon = icon;
- if (latlng) {
- tooltip.setLatLng(latlng);
+ if (this._map) {
+ this._initIcon();
+ this.update();
}
- if (this.hasLayer(tooltip)) {
- return this;
+ if (this._popup) {
+ this.bindPopup(this._popup, this._popup.options);
}
- return this.addLayer(tooltip);
+ return this;
},
- // @method closeTooltip(tooltip?: Tooltip): this
- // Closes the tooltip given as parameter.
- closeTooltip: function (tooltip) {
- if (tooltip) {
- this.removeLayer(tooltip);
+ 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;
- }
-});
+ return this;
+ },
-/*
- * @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();
- * ```
- */
+ _initIcon: function () {
+ var options = this.options,
+ classToAdd = 'leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');
-// @section Tooltip methods
-L.Layer.include({
+ var icon = options.icon.createIcon(this._icon),
+ addIcon = false;
- // @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) {
+ // 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 (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);
+ if (options.title) {
+ icon.title = options.title;
}
- this._tooltip.setContent(content);
+ if (icon.tagName === 'IMG') {
+ icon.alt = options.alt || '';
+ }
}
- this._initTooltipInteractions();
+ addClass(icon, classToAdd);
- if (this._tooltip.options.permanent && this._map && this._map.hasLayer(this)) {
- this.openTooltip();
+ if (options.keyboard) {
+ icon.tabIndex = '0';
}
- return this;
- },
+ this._icon = icon;
- // @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;
- },
-
- _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;
- }
- } else {
- events.add = this._openTooltip;
+ if (options.riseOnHover) {
+ this.on({
+ mouseover: this._bringToFront,
+ mouseout: this._resetZIndex
+ });
}
- 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;
- }
+ var newShadow = options.icon.createShadow(this._shadow),
+ addShadow = false;
- if (layer instanceof L.FeatureGroup) {
- for (var id in this._layers) {
- layer = this._layers[id];
- break;
- }
+ if (newShadow !== this._shadow) {
+ this._removeShadow();
+ addShadow = true;
}
- if (!latlng) {
- latlng = layer.getCenter ? layer.getCenter() : layer.getLatLng();
+ if (newShadow) {
+ addClass(newShadow, classToAdd);
+ newShadow.alt = '';
}
+ this._shadow = newShadow;
- if (this._tooltip && this._map) {
-
- // set tooltip source to this layer
- this._tooltip._source = layer;
- // update the tooltip (content, layout, ect...)
- this._tooltip.update();
+ if (options.opacity < 1) {
+ this._updateOpacity();
+ }
- // open the tooltip on the map
- this._map.openTooltip(this._tooltip, latlng);
- // 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 (addIcon) {
+ this.getPane().appendChild(this._icon);
+ }
+ this._initInteraction();
+ if (newShadow && addShadow) {
+ this.getPane('shadowPane').appendChild(this._shadow);
}
-
- return this;
},
- // @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);
- }
+ _removeIcon: function () {
+ if (this.options.riseOnHover) {
+ this.off({
+ mouseover: this._bringToFront,
+ mouseout: this._resetZIndex
+ });
}
- return this;
+
+ remove(this._icon);
+ this.removeInteractiveTarget(this._icon);
+
+ this._icon = null;
},
- // @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);
- }
+ _removeShadow: function () {
+ if (this._shadow) {
+ remove(this._shadow);
}
- return this;
+ this._shadow = null;
},
- // @method isTooltipOpen(): boolean
- // Returns `true` if the tooltip bound to this layer is currently open.
- isTooltipOpen: function () {
- return this._tooltip.isOpen();
- },
+ _setPos: function (pos) {
+ setPosition(this._icon, pos);
- // @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);
+ if (this._shadow) {
+ setPosition(this._shadow, pos);
}
- return this;
+
+ this._zIndex = pos.y + this.options.zIndexOffset;
+
+ this._resetZIndex();
},
- // @method getTooltip(): Tooltip
- // Returns the tooltip bound to this layer.
- getTooltip: function () {
- return this._tooltip;
+ _updateZIndex: function (offset) {
+ this._icon.style.zIndex = this._zIndex + offset;
},
- _openTooltip: function (e) {
- var layer = e.layer || e.target;
+ _animateZoom: function (opt) {
+ var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round();
- if (!this._tooltip || !this._map) {
- return;
- }
- this.openTooltip(layer, this._tooltip.options.sticky ? e.latlng : undefined);
+ this._setPos(pos);
},
- _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);
- }
-});
-
+ _initInteraction: function () {
+ if (!this.options.interactive) { return; }
-/*
- * @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);
- * ```
- */
+ addClass(this._icon, 'leaflet-interactive');
-L.LayerGroup = L.Layer.extend({
+ this.addInteractiveTarget(this._icon);
- initialize: function (layers) {
- this._layers = {};
+ if (MarkerDrag) {
+ var draggable = this.options.draggable;
+ if (this.dragging) {
+ draggable = this.dragging.enabled();
+ this.dragging.disable();
+ }
- var i, len;
+ this.dragging = new MarkerDrag(this);
- if (layers) {
- for (i = 0, len = layers.length; i < len; i++) {
- this.addLayer(layers[i]);
+ if (draggable) {
+ this.dragging.enable();
}
}
},
- // @method addLayer(layer: Layer): this
- // Adds the given layer to the group.
- addLayer: function (layer) {
- var id = this.getLayerId(layer);
-
- this._layers[id] = layer;
-
+ // @method setOpacity(opacity: Number): this
+ // Changes the opacity of the marker.
+ setOpacity: function (opacity) {
+ this.options.opacity = opacity;
if (this._map) {
- this._map.addLayer(layer);
+ this._updateOpacity();
}
return this;
},
- // @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]);
- }
+ _updateOpacity: function () {
+ var opacity = this.options.opacity;
- delete this._layers[id];
+ setOpacity(this._icon, opacity);
- return this;
+ if (this._shadow) {
+ setOpacity(this._shadow, opacity);
+ }
},
- // @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);
+ _bringToFront: function () {
+ this._updateZIndex(this.options.riseOffset);
},
- // @method clearLayers(): this
- // Removes all the layers from the group.
- clearLayers: function () {
- for (var i in this._layers) {
- this.removeLayer(this._layers[i]);
- }
- return this;
+ _resetZIndex: function () {
+ this._updateZIndex(0);
},
- // @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;
+ _getPopupAnchor: function () {
+ return this.options.icon.options.popupAnchor;
+ },
- for (i in this._layers) {
- layer = this._layers[i];
+ _getTooltipAnchor: function () {
+ return this.options.icon.options.tooltipAnchor;
+ }
+});
- if (layer[methodName]) {
- layer[methodName].apply(layer, args);
- }
- }
- return this;
- },
+// factory L.marker(latlng: LatLng, options? : Marker options)
- onAdd: function (map) {
- for (var i in this._layers) {
- map.addLayer(this._layers[i]);
- }
- },
+// @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);
+}
- onRemove: function (map) {
- for (var i in this._layers) {
- map.removeLayer(this._layers[i]);
- }
- },
+/*
+ * @class Path
+ * @aka L.Path
+ * @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`.
+ */
- // @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;
- },
+var Path = Layer.extend({
- // @method getLayer(id: Number): Layer
- // Returns the layer with the given internal ID.
- getLayer: function (id) {
- return this._layers[id];
- },
+ // @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,
- // @method getLayers(): Layer[]
- // Returns an array of all the layers added to the group.
- getLayers: function () {
- var layers = [];
+ // @option color: String = '#3388ff'
+ // Stroke color
+ color: '#3388ff',
- for (var i in this._layers) {
- layers.push(this._layers[i]);
- }
- return layers;
- },
+ // @option weight: Number = 3
+ // Stroke width in pixels
+ weight: 3,
- // @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);
- },
+ // @option opacity: Number = 1.0
+ // Stroke opacity
+ opacity: 1,
- // @method getLayerId(layer: Layer): Number
- // Returns the internal ID for a layer
- getLayerId: function (layer) {
- return L.stamp(layer);
- }
-});
+ // @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 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',
-// @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);
-};
+ // @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 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 fill: Boolean = depends
+ // Whether to fill the path with color. Set it to `false` to disable filling on polygons or circles.
+ fill: false,
-/*
- * @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);
- * ```
- */
+ // @option fillColor: String = *
+ // Fill color. Defaults to the value of the [`color`](#path-color) option
+ fillColor: null,
-L.FeatureGroup = L.LayerGroup.extend({
+ // @option fillOpacity: Number = 0.2
+ // Fill opacity.
+ fillOpacity: 0.2,
- addLayer: function (layer) {
- if (this.hasLayer(layer)) {
- return this;
- }
+ // @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',
- layer.addEventParent(this);
+ // className: '',
- L.LayerGroup.prototype.addLayer.call(this, layer);
+ // Option inherited from "Interactive layer" abstract class
+ interactive: true,
- // @event layeradd: LayerEvent
- // Fired when a layer is added to this `FeatureGroup`
- return this.fire('layeradd', {layer: layer});
+ // @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
},
- removeLayer: function (layer) {
- if (!this.hasLayer(layer)) {
- return this;
- }
- if (layer in this._layers) {
- layer = this._layers[layer];
- }
+ beforeAdd: function (map) {
+ // Renderer is set here because we need to call renderer.getEvents
+ // before this.getEvents.
+ this._renderer = map.getRenderer(this);
+ },
- layer.removeEventParent(this);
+ onAdd: function () {
+ this._renderer._initPath(this);
+ this._reset();
+ this._renderer._addPath(this);
+ },
- L.LayerGroup.prototype.removeLayer.call(this, layer);
+ onRemove: function () {
+ this._renderer._removePath(this);
+ },
- // @event layerremove: LayerEvent
- // Fired when a layer is removed from this `FeatureGroup`
- return this.fire('layerremove', {layer: layer});
+ // @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 setStyle(style: Path options): this
- // Sets the given path options to each layer of the group that has a `setStyle` method.
+ // Changes the appearance of a Path based on the options in the `Path options` object.
setStyle: function (style) {
- return this.invoke('setStyle', style);
+ setOptions(this, style);
+ if (this._renderer) {
+ this._renderer._updateStyle(this);
+ }
+ return this;
},
// @method bringToFront(): this
- // Brings the layer group to the top of all other layers
+ // Brings the layer to the top of all path layers.
bringToFront: function () {
- return this.invoke('bringToFront');
+ if (this._renderer) {
+ this._renderer._bringToFront(this);
+ }
+ return this;
},
// @method bringToBack(): this
- // Brings the layer group to the top of all other layers
+ // Brings the layer to the bottom of all path layers.
bringToBack: function () {
- return this.invoke('bringToBack');
+ if (this._renderer) {
+ this._renderer._bringToBack(this);
+ }
+ return 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();
+ getElement: function () {
+ return this._path;
+ },
- for (var id in this._layers) {
- var layer = this._layers[id];
- bounds.extend(layer.getBounds ? layer.getBounds() : layer.getLatLng());
- }
- return bounds;
+ _reset: function () {
+ // defined in child classes
+ this._project();
+ this._update();
+ },
+
+ _clickTolerance: function () {
+ // used when doing hit detection for Canvas layers
+ return (this.options.stroke ? this.options.weight / 2 : 0) + this._renderer.options.tolerance;
}
});
-// @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);
-};
-
-
-
/*
- * @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.
+ * @class CircleMarker
+ * @aka L.CircleMarker
+ * @inherits Path
*
- * @event update: Event
- * Fired when the renderer updates its bounds, center and zoom, for example when
- * its map has moved
+ * A circle of a fixed size with radius specified in pixels. Extends `Path`.
*/
-L.Renderer = L.Layer.extend({
+var CircleMarker = Path.extend({
// @section
- // @aka Renderer options
+ // @aka CircleMarker 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
- },
+ fill: true,
- initialize: function (options) {
- L.setOptions(this, options);
- L.stamp(this);
- this._layers = this._layers || {};
+ // @option radius: Number = 10
+ // Radius of the circle marker, in pixels
+ radius: 10
},
- onAdd: function () {
- if (!this._container) {
- this._initContainer(); // defined by renderer implementations
+ initialize: function (latlng, options) {
+ setOptions(this, options);
+ this._latlng = toLatLng(latlng);
+ this._radius = this.options.radius;
+ },
- if (this._zoomAnimated) {
- L.DomUtil.addClass(this._container, 'leaflet-zoom-animated');
- }
- }
+ // @method setLatLng(latLng: LatLng): this
+ // Sets the position of a circle marker to a new location.
+ setLatLng: function (latlng) {
+ this._latlng = toLatLng(latlng);
+ this.redraw();
+ return this.fire('move', {latlng: this._latlng});
+ },
- this.getPane().appendChild(this._container);
- this._update();
- this.on('update', this._updatePaths, this);
+ // @method getLatLng(): LatLng
+ // Returns the current geographical position of the circle marker
+ getLatLng: function () {
+ return this._latlng;
},
- onRemove: function () {
- L.DomUtil.remove(this._container);
- this.off('update', this._updatePaths, this);
+ // @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();
},
- 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;
+ // @method getRadius(): Number
+ // Returns the current radius of the circle
+ getRadius: function () {
+ return this._radius;
},
- _onAnimZoom: function (ev) {
- this._updateTransform(ev.center, ev.zoom);
+ setStyle : function (options) {
+ var radius = options && options.radius || this._radius;
+ Path.prototype.setStyle.call(this, options);
+ this.setRadius(radius);
+ return this;
},
- _onZoom: function () {
- this._updateTransform(this._map.getCenter(), this._map.getZoom());
+ _project: function () {
+ this._point = this._map.latLngToLayerPoint(this._latlng);
+ this._updateBounds();
},
- _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),
-
- topLeftOffset = viewHalf.multiplyBy(-scale).add(position).add(viewHalf).subtract(centerOffset);
-
- if (L.Browser.any3d) {
- L.DomUtil.setTransform(this._container, topLeftOffset, scale);
- } else {
- L.DomUtil.setPosition(this._container, topLeftOffset);
- }
+ _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));
},
- _reset: function () {
- this._update();
- this._updateTransform(this._center, this._zoom);
-
- for (var id in this._layers) {
- this._layers[id]._reset();
+ _update: function () {
+ if (this._map) {
+ this._updatePath();
}
},
- _onZoomEnd: function () {
- for (var id in this._layers) {
- this._layers[id]._project();
- }
+ _updatePath: function () {
+ this._renderer._updateCircle(this);
},
- _updatePaths: function () {
- for (var id in this._layers) {
- this._layers[id]._update();
- }
+ _empty: function () {
+ return this._radius && !this._renderer._bounds.intersects(this._pxBounds);
},
- _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 L.Bounds(min, min.add(size.multiplyBy(1 + p * 2)).round());
-
- this._center = this._map.getCenter();
- this._zoom = this._map.getZoom();
+ // Needed by the `Canvas` renderer for interactivity
+ _containsPoint: function (p) {
+ return p.distanceTo(this._point) <= this._radius + this._clickTolerance();
}
});
-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;
+// @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);
+}
- 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();
- }
+/*
+ * @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);
+ * ```
+ */
- if (!this.hasLayer(renderer)) {
- this.addLayer(renderer);
- }
- return renderer;
- },
+var Circle = CircleMarker.extend({
- _getPaneRenderer: function (name) {
- if (name === 'overlayPane' || name === undefined) {
- return false;
+ 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);
- 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;
- }
- return renderer;
- }
-});
+ 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();
+ },
-/*
- * @class Path
- * @aka L.Path
- * @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`.
- */
+ // @method getRadius(): Number
+ // Returns the current radius of a circle. Units are in meters.
+ getRadius: function () {
+ return this._mRadius;
+ },
-L.Path = L.Layer.extend({
+ // @method getBounds(): LatLngBounds
+ // Returns the `LatLngBounds` of the path.
+ getBounds: function () {
+ var half = [this._radius, this._radiusY || this._radius];
- // @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,
+ return new LatLngBounds(
+ this._map.layerPointToLatLng(this._point.subtract(half)),
+ this._map.layerPointToLatLng(this._point.add(half)));
+ },
- // @option color: String = '#3388ff'
- // Stroke color
- color: '#3388ff',
+ setStyle: Path.prototype.setStyle,
- // @option weight: Number = 3
- // Stroke width in pixels
- weight: 3,
+ _project: function () {
- // @option opacity: Number = 1.0
- // Stroke opacity
- opacity: 1,
+ var lng = this._latlng.lng,
+ lat = this._latlng.lat,
+ map = this._map,
+ crs = map.options.crs;
- // @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',
+ 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;
- // @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 (isNaN(lngR) || lngR === 0) {
+ lngR = latR / Math.cos(Math.PI / 180 * lat); // Fallback for edge case, #2425
+ }
- // @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,
+ 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;
- // @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,
+ } else {
+ var latlng2 = crs.unproject(crs.project(this._latlng).subtract([this._mRadius, 0]));
- // @option fill: Boolean = depends
- // Whether to fill the path with color. Set it to `false` to disable filling on polygons or circles.
- fill: false,
+ this._point = map.latLngToLayerPoint(this._latlng);
+ this._radius = this._point.x - map.latLngToLayerPoint(latlng2).x;
+ }
- // @option fillColor: String = *
- // Fill color. Defaults to the value of the [`color`](#path-color) option
- fillColor: null,
+ this._updateBounds();
+ }
+});
- // @option fillOpacity: Number = 0.2
- // Fill opacity.
- fillOpacity: 0.2,
+// @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);
+}
- // @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',
+/*
+ * @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]]
+ * ];
+ * ```
+ */
- // className: '',
- // Option inherited from "Interactive layer" abstract class
- interactive: true
- },
-
- beforeAdd: function (map) {
- // Renderer is set here because we need to call renderer.getEvents
- // before this.getEvents.
- this._renderer = map.getRenderer(this);
- },
-
- onAdd: function () {
- this._renderer._initPath(this);
- this._reset();
- this._renderer._addPath(this);
- },
-
- onRemove: function () {
- this._renderer._removePath(this);
- },
-
- // @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 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);
- }
- return this;
- },
-
- // @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 bringToBack(): this
- // Brings the layer to the bottom of all path layers.
- bringToBack: function () {
- if (this._renderer) {
- this._renderer._bringToBack(this);
- }
- return this;
- },
-
- getElement: function () {
- return this._path;
- },
-
- _reset: function () {
- // defined in children classes
- this._project();
- this._update();
- },
-
- _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.
-
- // @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();
- }
-
- var sqTolerance = tolerance * tolerance;
-
- // stage 1: vertex reduction
- points = this._reducePoints(points, sqTolerance);
-
- // stage 2: Douglas-Peucker simplification
- points = this._simplifyDP(points, sqTolerance);
-
- return points;
- },
-
- // @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));
- },
-
- // @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);
- },
-
- // Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm
- _simplifyDP: function (points, sqTolerance) {
-
- var len = points.length,
- ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array,
- markers = new ArrayConstructor(len);
-
- markers[0] = markers[len - 1] = 1;
-
- this._simplifyDPStep(points, markers, sqTolerance, 0, len - 1);
-
- var i,
- newPoints = [];
-
- for (i = 0; i < len; i++) {
- if (markers[i]) {
- newPoints.push(points[i]);
- }
- }
-
- return newPoints;
- },
-
- _simplifyDPStep: function (points, markers, sqTolerance, first, last) {
-
- var maxSqDist = 0,
- index, i, sqDist;
-
- for (i = first + 1; i <= last - 1; i++) {
- sqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true);
-
- if (sqDist > maxSqDist) {
- index = i;
- maxSqDist = sqDist;
- }
- }
-
- if (maxSqDist > sqTolerance) {
- markers[index] = 1;
-
- this._simplifyDPStep(points, markers, sqTolerance, first, index);
- this._simplifyDPStep(points, markers, sqTolerance, index, last);
- }
- },
-
- // reduce points that are too close to each other to a single point
- _reducePoints: function (points, sqTolerance) {
- var reducedPoints = [points[0]];
-
- for (var i = 1, prev = 0, len = points.length; i < len; i++) {
- if (this._sqDist(points[i], points[prev]) > sqTolerance) {
- reducedPoints.push(points[i]);
- prev = i;
- }
- }
- if (prev < len - 1) {
- reducedPoints.push(points[len - 1]);
- }
- return reducedPoints;
- },
-
-
- // @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;
-
- // save 2nd code to avoid calculating it on the next segment
- this._lastCode = codeB;
-
- while (true) {
- // if a,b is inside the clip window (trivial accept)
- if (!(codeA | codeB)) {
- return [a, b];
- }
-
- // if a,b is outside the clip window (trivial reject)
- if (codeA & codeB) {
- return false;
- }
-
- // other cases
- codeOut = codeA || codeB;
- p = this._getEdgeIntersection(a, b, codeOut, bounds, round);
- newCode = this._getBitCode(p, bounds);
-
- if (codeOut === codeA) {
- a = p;
- codeA = newCode;
- } else {
- b = p;
- codeB = newCode;
- }
- }
- },
-
- _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;
-
- } else if (code & 2) { // right
- x = max.x;
- y = a.y + dy * (max.x - a.x) / dx;
-
- } else if (code & 1) { // left
- x = min.x;
- y = a.y + dy * (min.x - a.x) / dx;
- }
-
- return new L.Point(x, y, round);
- },
-
- _getBitCode: function (p, bounds) {
- var code = 0;
-
- if (p.x < bounds.min.x) { // left
- code |= 1;
- } else if (p.x > bounds.max.x) { // right
- code |= 2;
- }
-
- if (p.y < bounds.min.y) { // bottom
- code |= 4;
- } else if (p.y > bounds.max.y) { // top
- code |= 8;
- }
-
- return code;
- },
-
- // square distance (to avoid unnecessary Math.sqrt calls)
- _sqDist: function (p1, p2) {
- var dx = p2.x - p1.x,
- dy = p2.y - p1.y;
- return dx * dx + dy * dy;
- },
-
- // return closest point on segment or distance to that point
- _sqClosestPointOnSegment: function (p, p1, p2, sqDist) {
- var x = p1.x,
- y = p1.y,
- dx = p2.x - x,
- dy = p2.y - y,
- dot = dx * dx + dy * dy,
- t;
-
- if (dot > 0) {
- t = ((p.x - x) * dx + (p.y - y) * dy) / dot;
-
- if (t > 1) {
- x = p2.x;
- y = p2.y;
- } else if (t > 0) {
- x += dx * t;
- y += dy * t;
- }
- }
-
- dx = p.x - x;
- dy = p.y - y;
-
- return sqDist ? dx * dx + dy * dy : new L.Point(x, y);
- }
-};
-
-
-
-/*
- * @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 = [
- * [-122.68, 45.51],
- * [-122.43, 37.77],
- * [-118.2, 34.04]
- * ];
- *
- * 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 = [
- * [[-122.68, 45.51],
- * [-122.43, 37.77],
- * [-118.2, 34.04]],
- * [[-73.91, 40.78],
- * [-87.62, 41.83],
- * [-96.72, 32.76]]
- * ];
- * ```
- */
-
-L.Polyline = L.Path.extend({
+var Polyline = Path.extend({
// @section
// @aka Polyline options
},
initialize: function (latlngs, options) {
- L.setOptions(this, options);
+ setOptions(this, options);
this._setLatLngs(latlngs);
},
return !this._latlngs.length;
},
+ // @method closestLayerPoint(p: Point): Point
+ // Returns the point closest to `p` on the Polyline.
closestLayerPoint: function (p) {
var minDistance = Infinity,
minPoint = null,
- closest = L.LineUtil._sqClosestPointOnSegment,
+ closest = _sqClosestPointOnSegment,
p1, p2;
for (var j = 0, jLen = this._parts.length; j < jLen; j++) {
// 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);
+ latlng = toLatLng(latlng);
latlngs.push(latlng);
this._bounds.extend(latlng);
return this.redraw();
},
_setLatLngs: function (latlngs) {
- this._bounds = new L.LatLngBounds();
+ this._bounds = new LatLngBounds();
this._latlngs = this._convertLatLngs(latlngs);
},
_defaultShape: function () {
- return L.Polyline._flat(this._latlngs) ? this._latlngs : this._latlngs[0];
+ return isFlat(this._latlngs) ? this._latlngs : this._latlngs[0];
},
// recursively convert latlngs input into actual LatLng instances; calculate bounds along the way
_convertLatLngs: function (latlngs) {
var result = [],
- flat = L.Polyline._flat(latlngs);
+ flat = isFlat(latlngs);
for (var i = 0, len = latlngs.length; i < len; i++) {
if (flat) {
- result[i] = L.latLng(latlngs[i]);
+ result[i] = toLatLng(latlngs[i]);
this._bounds.extend(result[i]);
} else {
result[i] = this._convertLatLngs(latlngs[i]);
},
_project: function () {
- var pxBounds = new L.Bounds();
+ var pxBounds = new Bounds();
this._rings = [];
this._projectLatlngs(this._latlngs, this._rings, pxBounds);
var w = this._clickTolerance(),
- p = new L.Point(w, w);
+ p = new Point(w, w);
if (this._bounds.isValid() && pxBounds.isValid()) {
pxBounds.min._subtract(p);
// recursively turns latlngs into a set of rings with projected coordinates
_projectLatlngs: function (latlngs, result, projectedBounds) {
- var flat = latlngs[0] instanceof L.LatLng,
+ var flat = latlngs[0] instanceof LatLng,
len = latlngs.length,
i, ring;
points = this._rings[i];
for (j = 0, len2 = points.length; j < len2 - 1; j++) {
- segment = L.LineUtil.clipSegment(points[j], points[j + 1], bounds, j, true);
+ segment = clipSegment(points[j], points[j + 1], bounds, j, true);
if (!segment) { continue; }
tolerance = this.options.smoothFactor;
for (var i = 0, len = parts.length; i < len; i++) {
- parts[i] = L.LineUtil.simplify(parts[i], tolerance);
+ parts[i] = simplify(parts[i], tolerance);
}
},
_updatePath: function () {
this._renderer._updatePoly(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);
-};
-
-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');
-};
-
-
-
-/*
- * @namespace PolyUtil
- * Various utility functions for polygon geometries.
- */
-
-L.PolyUtil = {};
+ },
-/* @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;
+ // Needed by the `Canvas` renderer for interactivity
+ _containsPoint: function (p, closed) {
+ var i, j, k, len, len2, part,
+ w = this._clickTolerance();
- for (i = 0, len = points.length; i < len; i++) {
- points[i]._code = lu._getBitCode(points[i], bounds);
- }
+ if (!this._pxBounds || !this._pxBounds.contains(p)) { return false; }
- // for each edge (left, bottom, right, top)
- for (k = 0; k < 4; k++) {
- edge = edges[k];
- clippedPoints = [];
+ // hit detection for polylines
+ for (i = 0, len = this._parts.length; i < len; i++) {
+ part = this._parts[i];
- for (i = 0, len = points.length, j = len - 1; i < len; j = i++) {
- a = points[i];
- b = points[j];
+ for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
+ if (!closed && (j === 0)) { continue; }
- // 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);
+ if (pointToSegmentDistance(p, part[k], part[j]) <= w) {
+ return true;
}
- clippedPoints.push(a);
-
- // else if b is inside the clip window (a->b enters the screen)
- } else if (!(b._code & edge)) {
- p = lu._getEdgeIntersection(b, a, edge, bounds, round);
- p._code = lu._getBitCode(p, bounds);
- clippedPoints.push(p);
}
}
- points = clippedPoints;
+ return false;
}
+});
- return points;
-};
-
+// @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 Polygon
*
* ```js
* // create a red polygon from an array of LatLng points
- * var latlngs = [[-111.03, 41],[-111.04, 45],[-104.05, 45],[-104.05, 41]];
+ * var latlngs = [[37, -109.05],[41, -109.03],[41, -102.05],[37, -102.04]];
*
* var polygon = L.polygon(latlngs, {color: 'red'}).addTo(map);
*
*
* ```js
* var latlngs = [
- * [[-111.03, 41],[-111.04, 45],[-104.05, 45],[-104.05, 41]], // outer ring
- * [[-108.58,37.29],[-108.58,40.71],[-102.50,40.71],[-102.50,37.29]] // hole
+ * [[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
* ];
* ```
*
* ```js
* var latlngs = [
* [ // first polygon
- * [[-111.03, 41],[-111.04, 45],[-104.05, 45],[-104.05, 41]], // outer ring
- * [[-108.58,37.29],[-108.58,40.71],[-102.50,40.71],[-102.50,37.29]] // hole
+ * [[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
- * [[-109.05, 37],[-109.03, 41],[-102.05, 41],[-102.04, 37],[-109.05, 38]]
+ * [[41, -111.03],[45, -111.04],[45, -104.05],[41, -104.05]]
* ]
* ];
* ```
*/
-L.Polygon = L.Polyline.extend({
+var Polygon = Polyline.extend({
options: {
fill: true
},
_convertLatLngs: function (latlngs) {
- var result = L.Polyline.prototype._convertLatLngs.call(this, 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 L.LatLng && result[0].equals(result[len - 1])) {
+ if (len >= 2 && result[0] instanceof LatLng && result[0].equals(result[len - 1])) {
result.pop();
}
return result;
},
_setLatLngs: function (latlngs) {
- L.Polyline.prototype._setLatLngs.call(this, latlngs);
- if (L.Polyline._flat(this._latlngs)) {
+ Polyline.prototype._setLatLngs.call(this, latlngs);
+ if (isFlat(this._latlngs)) {
this._latlngs = [this._latlngs];
}
},
_defaultShape: function () {
- return L.Polyline._flat(this._latlngs[0]) ? this._latlngs[0] : this._latlngs[0][0];
+ return isFlat(this._latlngs[0]) ? this._latlngs[0] : this._latlngs[0][0];
},
_clipPoints: function () {
var bounds = this._renderer._bounds,
w = this.options.weight,
- p = new L.Point(w, w);
+ p = new Point(w, w);
// increase clip padding by stroke width to avoid stroke on clip edges
- bounds = new L.Bounds(bounds.min.subtract(p), bounds.max.add(p));
+ bounds = new Bounds(bounds.min.subtract(p), bounds.max.add(p));
this._parts = [];
if (!this._pxBounds || !this._pxBounds.intersects(bounds)) {
}
for (var i = 0, len = this._rings.length, clipped; i < len; i++) {
- clipped = L.PolyUtil.clipPolygon(this._rings[i], bounds, true);
+ clipped = clipPolygon(this._rings[i], bounds, true);
if (clipped.length) {
this._parts.push(clipped);
}
_updatePath: function () {
this._renderer._updatePoly(this, true);
- }
-});
+ },
+ // Needed by the `Canvas` renderer for interactivity
+ _containsPoint: function (p) {
+ var inside = false,
+ part, p1, p2, i, j, k, len, len2;
-// @factory L.polygon(latlngs: LatLng[], options?: Polyline options)
-L.polygon = function (latlngs, options) {
- return new L.Polygon(latlngs, options);
-};
+ if (!this._pxBounds || !this._pxBounds.contains(p)) { return false; }
+ // ray casting algorithm for detecting if point is in polygon
+ for (i = 0, len = this._parts.length; i < len; i++) {
+ part = this._parts[i];
+ for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
+ p1 = part[j];
+ p2 = part[k];
-/*
- * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object.
- */
+ 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;
+ }
+ }
+ }
-/*
- * @class Rectangle
- * @aka L.Retangle
- * @inherits Polygon
+ // 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 GeoJSON
+ * @aka L.GeoJSON
+ * @inherits FeatureGroup
*
- * A class for drawing rectangle overlays on a map. Extends `Polygon`.
+ * 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
- * // 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);
+ * L.geoJSON(data, {
+ * style: function (feature) {
+ * return {color: feature.properties.color};
+ * }
+ * }).bindPopup(function (layer) {
+ * return layer.feature.properties.description;
+ * }).addTo(map);
* ```
- *
*/
+var GeoJSON = FeatureGroup.extend({
-L.Rectangle = L.Polygon.extend({
- initialize: function (latLngBounds, options) {
- L.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options);
- },
+ /* @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.
+ */
- // @method setBounds(latLngBounds: LatLngBounds): this
- // Redraws the rectangle with the passed bounds.
- setBounds: function (latLngBounds) {
- return this.setLatLngs(this._boundsToLatLngs(latLngBounds));
- },
+ initialize: function (geojson, options) {
+ setOptions(this, options);
- _boundsToLatLngs: function (latLngBounds) {
- latLngBounds = L.latLngBounds(latLngBounds);
- return [
- latLngBounds.getSouthWest(),
- latLngBounds.getNorthWest(),
- latLngBounds.getNorthEast(),
- latLngBounds.getSouthEast()
- ];
- }
-});
+ this._layers = {};
+ if (geojson) {
+ this.addData(geojson);
+ }
+ },
-// @factory L.rectangle(latLngBounds: LatLngBounds, options?: Polyline options)
-L.rectangle = function (latLngBounds, options) {
- return new L.Rectangle(latLngBounds, options);
-};
+ // @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;
+ }
+ var options = this.options;
-/*
- * @class CircleMarker
- * @aka L.CircleMarker
- * @inherits Path
- *
- * A circle of a fixed size with radius specified in pixels. Extends `Path`.
- */
+ if (options.filter && !options.filter(geojson)) { return this; }
-L.CircleMarker = L.Path.extend({
+ var layer = geometryToLayer(geojson, options);
+ if (!layer) {
+ return this;
+ }
+ layer.feature = asFeature(geojson);
- // @section
- // @aka CircleMarker options
- options: {
- fill: true,
+ layer.defaultOptions = layer.options;
+ this.resetStyle(layer);
- // @option radius: Number = 10
- // Radius of the circle marker, in pixels
- radius: 10
- },
+ if (options.onEachFeature) {
+ options.onEachFeature(geojson, layer);
+ }
- initialize: function (latlng, options) {
- L.setOptions(this, options);
- this._latlng = L.latLng(latlng);
- this._radius = this.options.radius;
+ return this.addLayer(layer);
},
- // @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});
+ // @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 = extend({}, layer.defaultOptions);
+ this._setLayerStyle(layer, this.options.style);
+ return this;
},
- // @method getLatLng(): LatLng
- // Returns the current geographical position of the circle marker
- getLatLng: function () {
- return this._latlng;
+ // @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 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();
- },
+ _setLayerStyle: function (layer, style) {
+ if (typeof style === 'function') {
+ style = style(layer.feature);
+ }
+ if (layer.setStyle) {
+ layer.setStyle(style);
+ }
+ }
+});
- // @method getRadius(): Number
- // Returns the current radius of the circle
- getRadius: function () {
- return this._radius;
- },
+// @section
+// There are several static functions which can be called without instantiating L.GeoJSON:
- setStyle : function (options) {
- var radius = options && options.radius || this._radius;
- L.Path.prototype.setStyle.call(this, options);
- this.setRadius(radius);
- return this;
- },
+// @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) {
- _project: function () {
- this._point = this._map.latLngToLayerPoint(this._latlng);
- this._updateBounds();
- },
+ 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;
- _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));
- },
+ if (!coords && !geometry) {
+ return null;
+ }
- _update: function () {
- if (this._map) {
- this._updatePath();
+ switch (geometry.type) {
+ case 'Point':
+ latlng = _coordsToLatLng(coords);
+ return pointToLayer ? pointToLayer(geojson, latlng) : new Marker(latlng);
+
+ case 'MultiPoint':
+ for (i = 0, len = coords.length; i < len; i++) {
+ latlng = _coordsToLatLng(coords[i]);
+ layers.push(pointToLayer ? pointToLayer(geojson, latlng) : new Marker(latlng));
}
- },
+ return new FeatureGroup(layers);
- _updatePath: function () {
- this._renderer._updateCircle(this);
- },
+ case 'LineString':
+ case 'MultiLineString':
+ latlngs = coordsToLatLngs(coords, geometry.type === 'LineString' ? 0 : 1, _coordsToLatLng);
+ return new Polyline(latlngs, options);
- _empty: function () {
- return this._radius && !this._renderer._bounds.intersects(this._pxBounds);
+ case 'Polygon':
+ case 'MultiPolygon':
+ latlngs = coordsToLatLngs(coords, geometry.type === 'Polygon' ? 1 : 2, _coordsToLatLng);
+ return new Polygon(latlngs, options);
+
+ 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);
+
+ default:
+ throw new Error('Invalid GeoJSON object.');
}
-});
+}
+// @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]);
+}
-// @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);
-};
+// @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 = [];
+ for (var i = 0, len = coords.length, latlng; i < len; i++) {
+ latlng = levelsDeep ?
+ coordsToLatLngs(coords[i], levelsDeep - 1, _coordsToLatLng) :
+ (_coordsToLatLng || coordsToLatLng)(coords[i]);
+ latlngs.push(latlng);
+ }
-/*
- * @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);
- * ```
- */
+ return latlngs;
+}
-L.Circle = L.CircleMarker.extend({
+// @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)];
+}
- 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});
- }
- L.setOptions(this, options);
- this._latlng = L.latLng(latlng);
+// @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 = [];
- if (isNaN(this.options.radius)) { throw new Error('Circle radius cannot be NaN'); }
+ for (var i = 0, len = latlngs.length; i < len; i++) {
+ coords.push(levelsDeep ?
+ latLngsToCoords(latlngs[i], levelsDeep - 1, closed, precision) :
+ latLngToCoords(latlngs[i], precision));
+ }
- // @section
- // @aka Circle options
- // @option radius: Number; Radius of the circle, in meters.
- this._mRadius = this.options.radius;
- },
+ if (!levelsDeep && closed) {
+ coords.push(coords[0]);
+ }
- // @method setRadius(radius: Number): this
- // Sets the radius of a circle. Units are in meters.
- setRadius: function (radius) {
- this._mRadius = radius;
- return this.redraw();
- },
+ return coords;
+}
- // @method getRadius(): Number
- // Returns the current radius of a circle. Units are in meters.
- getRadius: function () {
- return this._mRadius;
- },
+function getFeature(layer, newGeometry) {
+ return layer.feature ?
+ extend({}, layer.feature, {geometry: newGeometry}) :
+ asFeature(newGeometry);
+}
- // @method getBounds(): LatLngBounds
- // Returns the `LatLngBounds` of the path.
- getBounds: function () {
- var half = [this._radius, this._radiusY || this._radius];
+// @function asFeature(geojson: Object): Object
+// Normalize GeoJSON geometries/features into GeoJSON features.
+function asFeature(geojson) {
+ if (geojson.type === 'Feature' || geojson.type === 'FeatureCollection') {
+ return geojson;
+ }
- return new L.LatLngBounds(
- this._map.layerPointToLatLng(this._point.subtract(half)),
- this._map.layerPointToLatLng(this._point.add(half)));
- },
+ return {
+ type: 'Feature',
+ properties: {},
+ geometry: geojson
+ };
+}
- setStyle: L.Path.prototype.setStyle,
+var PointToGeoJSON = {
+ toGeoJSON: function (precision) {
+ return getFeature(this, {
+ type: 'Point',
+ coordinates: latLngToCoords(this.getLatLng(), precision)
+ });
+ }
+};
- _project: function () {
+// @namespace Marker
+// @method toGeoJSON(): Object
+// Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the marker (as a GeoJSON `Point` Feature).
+Marker.include(PointToGeoJSON);
- var lng = this._latlng.lng,
- lat = this._latlng.lat,
- map = this._map,
- crs = map.options.crs;
+// @namespace CircleMarker
+// @method toGeoJSON(): Object
+// 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);
- 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
- }
+// @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).
+Polyline.include({
+ toGeoJSON: function (precision) {
+ var multi = !isFlat(this._latlngs);
- 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);
+ var coords = latLngsToCoords(this._latlngs, multi ? 1 : 0, false, precision);
- } else {
- var latlng2 = crs.unproject(crs.project(this._latlng).subtract([this._mRadius, 0]));
+ return getFeature(this, {
+ type: (multi ? 'Multi' : '') + 'LineString',
+ coordinates: coords
+ });
+ }
+});
- this._point = map.latLngToLayerPoint(this._latlng);
- this._radius = this._point.x - map.latLngToLayerPoint(latlng2).x;
+// @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).
+Polygon.include({
+ toGeoJSON: function (precision) {
+ var holes = !isFlat(this._latlngs),
+ multi = holes && !isFlat(this._latlngs[0]);
+
+ var coords = latLngsToCoords(this._latlngs, multi ? 2 : holes ? 1 : 0, true, precision);
+
+ if (!holes) {
+ coords = [coords];
}
- this._updateBounds();
+ return getFeature(this, {
+ type: (multi ? 'Multi' : '') + 'Polygon',
+ coordinates: coords
+ });
}
});
-// @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);
-};
+// @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
+ });
+ },
+
+ // @method toGeoJSON(): Object
+ // 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 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 {
+ 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 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.
+ * @class ImageOverlay
+ * @aka L.ImageOverlay
+ * @inherits Interactive layer
*
- * 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.
+ * Used to load and display a single image over specific bounds of the map. Extends `Layer`.
*
* @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 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.SVG = L.Renderer.extend({
-
- getEvents: function () {
- var events = L.Renderer.prototype.getEvents.call(this);
- events.zoomstart = this._onZoomStart;
- return events;
- },
+var ImageOverlay = Layer.extend({
- _initContainer: function () {
- this._container = L.SVG.create('svg');
-
- // makes it possible to click through svg root; we'll reset it back in individual paths
- this._container.setAttribute('pointer-events', 'none');
+ // @section
+ // @aka ImageOverlay options
+ options: {
+ // @option opacity: Number = 1.0
+ // The opacity of the image overlay.
+ opacity: 1,
- this._rootGroup = L.SVG.create('g');
- this._container.appendChild(this._rootGroup);
- },
+ // @option alt: String = ''
+ // Text for the `alt` attribute of the image (useful for accessibility).
+ alt: '',
- _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();
- },
+ // @option interactive: Boolean = false
+ // If `true`, the image overlay will emit [mouse events](#interactive-layer) when clicked or hovered.
+ interactive: false,
- _update: function () {
- if (this._map._animatingZoom && this._bounds) { return; }
+ // @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,
- L.Renderer.prototype._update.call(this);
+ // @option errorOverlayUrl: String = ''
+ // URL to the overlay image to show in place of the overlay that failed to load.
+ errorOverlayUrl: '',
- var b = this._bounds,
- size = b.getSize(),
- container = this._container;
+ // @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,
- // 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);
- }
+ // @option className: String = ''
+ // A custom class name to assign to the image. Empty by default.
+ className: ''
+ },
- // 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(' '));
+ initialize: function (url, bounds, options) { // (String, LatLngBounds, Object)
+ this._url = url;
+ this._bounds = toLatLngBounds(bounds);
- this.fire('update');
+ setOptions(this, options);
},
- // methods below are called by vector layers implementations
-
- _initPath: function (layer) {
- var path = layer._path = L.SVG.create('path');
+ onAdd: function () {
+ if (!this._image) {
+ this._initImage();
- // @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);
+ if (this.options.opacity < 1) {
+ this._updateOpacity();
+ }
}
- if (layer.options.interactive) {
- L.DomUtil.addClass(path, 'leaflet-interactive');
+ if (this.options.interactive) {
+ addClass(this._image, 'leaflet-interactive');
+ this.addInteractiveTarget(this._image);
}
- this._updateStyle(layer);
- this._layers[L.stamp(layer)] = layer;
+ this.getPane().appendChild(this._image);
+ this._reset();
},
- _addPath: function (layer) {
- this._rootGroup.appendChild(layer._path);
- layer.addInteractiveTarget(layer._path);
+ onRemove: function () {
+ remove(this._image);
+ if (this.options.interactive) {
+ this.removeInteractiveTarget(this._image);
+ }
},
- _removePath: function (layer) {
- L.DomUtil.remove(layer._path);
- layer.removeInteractiveTarget(layer._path);
- delete this._layers[L.stamp(layer)];
+ // @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;
},
- _updatePath: function (layer) {
- layer._project();
- layer._update();
+ setStyle: function (styleOpts) {
+ if (styleOpts.opacity) {
+ this.setOpacity(styleOpts.opacity);
+ }
+ return this;
},
- _updateStyle: function (layer) {
- var path = layer._path,
- options = layer.options;
-
- if (!path) { return; }
-
- if (options.stroke) {
- path.setAttribute('stroke', options.color);
- path.setAttribute('stroke-opacity', options.opacity);
- path.setAttribute('stroke-width', options.weight);
- path.setAttribute('stroke-linecap', options.lineCap);
- path.setAttribute('stroke-linejoin', options.lineJoin);
-
- if (options.dashArray) {
- path.setAttribute('stroke-dasharray', options.dashArray);
- } else {
- path.removeAttribute('stroke-dasharray');
- }
+ // @method bringToFront(): this
+ // Brings the layer to the top of all overlays.
+ bringToFront: function () {
+ if (this._map) {
+ toFront(this._image);
+ }
+ return this;
+ },
- if (options.dashOffset) {
- path.setAttribute('stroke-dashoffset', options.dashOffset);
- } else {
- path.removeAttribute('stroke-dashoffset');
- }
- } else {
- path.setAttribute('stroke', 'none');
+ // @method bringToBack(): this
+ // Brings the layer to the bottom of all overlays.
+ bringToBack: function () {
+ if (this._map) {
+ toBack(this._image);
}
+ return 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');
+ // @method setUrl(url: String): this
+ // Changes the URL of the image.
+ setUrl: function (url) {
+ this._url = url;
+
+ if (this._image) {
+ this._image.src = url;
}
+ return this;
},
- _updatePoly: function (layer, closed) {
- this._setPath(layer, L.SVG.pointsToPath(layer._parts, closed));
+ // @method setBounds(bounds: LatLngBounds): this
+ // Update the bounds that this ImageOverlay covers
+ setBounds: function (bounds) {
+ this._bounds = toLatLngBounds(bounds);
+
+ if (this._map) {
+ this._reset();
+ }
+ return this;
},
- _updateCircle: function (layer) {
- var p = layer._point,
- r = layer._radius,
- r2 = layer._radiusY || r,
- arc = 'a' + r + ',' + r2 + ' 0 1,0 ';
+ getEvents: function () {
+ var events = {
+ zoom: this._reset,
+ viewreset: this._reset
+ };
- // 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 ';
+ if (this._zoomAnimated) {
+ events.zoomanim = this._animateZoom;
+ }
- this._setPath(layer, d);
+ return events;
},
- _setPath: function (layer, path) {
- layer._path.setAttribute('d', path);
+ // @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;
},
- // 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);
+ // @method getBounds(): LatLngBounds
+ // Get the bounds that this ImageOverlay covers
+ getBounds: function () {
+ return this._bounds;
},
- _bringToBack: function (layer) {
- L.DomUtil.toBack(layer._path);
- }
-});
-
-
-// @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;
- }
-
- // closes the ring for polygons; "x" is VML syntax
- str += closed ? (L.Browser.svg ? 'z' : 'x') : '';
- }
+ // @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;
+ },
- // SVG complains about empty path strings
- return str || 'M0 0';
- }
-});
+ _initImage: function () {
+ var wasElementSupplied = this._url.tagName === 'IMG';
+ var img = this._image = wasElementSupplied ? this._url : create$1('img');
-// @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);
+ addClass(img, 'leaflet-image-layer');
+ if (this._zoomAnimated) { addClass(img, 'leaflet-zoom-animated'); }
+ if (this.options.className) { addClass(img, this.options.className); }
+ img.onselectstart = falseFn;
+ img.onmousemove = falseFn;
-// @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;
-};
+ // @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');
+ if (this.options.crossOrigin || this.options.crossOrigin === '') {
+ img.crossOrigin = this.options.crossOrigin === true ? '' : this.options.crossOrigin;
+ }
+ if (this.options.zIndex) {
+ this._updateZIndex();
+ }
-/*
- * Thanks to Dmitry Baranovsky and his Raphael library for inspiration!
- */
+ if (wasElementSupplied) {
+ this._url = img.src;
+ return;
+ }
-/*
- * @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.
- */
+ img.src = this._url;
+ img.alt = this.options.alt;
+ },
-// @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"/>';
+ _animateZoom: function (e) {
+ var scale = this._map.getZoomScale(e.zoom),
+ offset = this._map._latLngBoundsToNewLayerBounds(this._bounds, e.zoom, e.center).min;
- var shape = div.firstChild;
- shape.style.behavior = 'url(#default#VML)';
+ setTransform(this._image, offset, scale);
+ },
- return shape && (typeof shape.adj === 'object');
+ _reset: function () {
+ var image = this._image,
+ bounds = new Bounds(
+ this._map.latLngToLayerPoint(this._bounds.getNorthWest()),
+ this._map.latLngToLayerPoint(this._bounds.getSouthEast())),
+ size = bounds.getSize();
- } catch (e) {
- return false;
- }
-}());
+ setPosition(image, bounds.min);
-// redefine some SVG methods to handle VML syntax which is similar but with some differences
-L.SVG.include(!L.Browser.vml ? {} : {
+ image.style.width = size.x + 'px';
+ image.style.height = size.y + 'px';
+ },
- _initContainer: function () {
- this._container = L.DomUtil.create('div', 'leaflet-vml-container');
+ _updateOpacity: function () {
+ setOpacity(this._image, this.options.opacity);
},
- _update: function () {
- if (this._map._animatingZoom) { return; }
- L.Renderer.prototype._update.call(this);
- this.fire('update');
+ _updateZIndex: function () {
+ if (this._image && this.options.zIndex !== undefined && this.options.zIndex !== null) {
+ this._image.style.zIndex = this.options.zIndex;
+ }
},
- _initPath: function (layer) {
- var container = layer._container = L.SVG.create('shape');
+ _overlayOnError: function () {
+ // @event error: Event
+ // Fired when the ImageOverlay layer fails to load its image
+ this.fire('error');
- L.DomUtil.addClass(container, 'leaflet-vml-shape ' + (this.options.className || ''));
+ var errorUrl = this.options.errorOverlayUrl;
+ if (errorUrl && this._url !== errorUrl) {
+ this._url = errorUrl;
+ this._image.src = errorUrl;
+ }
+ }
+});
- container.coordsize = '1 1';
+// @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);
+};
- layer._path = L.SVG.create('path');
- container.appendChild(layer._path);
+/*
+ * @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);
+ * ```
+ */
- this._updateStyle(layer);
- },
+var VideoOverlay = ImageOverlay.extend({
- _addPath: function (layer) {
- var container = layer._container;
- this._container.appendChild(container);
+ // @section
+ // @aka VideoOverlay options
+ options: {
+ // @option autoplay: Boolean = true
+ // Whether the video starts playing automatically when loaded.
+ autoplay: true,
- if (layer.options.interactive) {
- layer.addInteractiveTarget(container);
- }
+ // @option loop: Boolean = true
+ // Whether the video will loop back to the beginning when played.
+ loop: true
},
- _removePath: function (layer) {
- var container = layer._container;
- L.DomUtil.remove(container);
- layer.removeInteractiveTarget(container);
- },
+ _initImage: function () {
+ var wasElementSupplied = this._url.tagName === 'VIDEO';
+ var vid = this._image = wasElementSupplied ? this._url : create$1('video');
- _updateStyle: function (layer) {
- var stroke = layer._stroke,
- fill = layer._fill,
- options = layer.options,
- container = layer._container;
+ addClass(vid, 'leaflet-image-layer');
+ if (this._zoomAnimated) { addClass(vid, 'leaflet-zoom-animated'); }
- container.stroked = !!options.stroke;
- container.filled = !!options.fill;
+ vid.onselectstart = falseFn;
+ vid.onmousemove = falseFn;
- 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;
+ // @event load: Event
+ // Fired when the video has finished loading the first frame
+ vid.onloadeddata = bind(this.fire, this, 'load');
- if (options.dashArray) {
- stroke.dashStyle = L.Util.isArray(options.dashArray) ?
- options.dashArray.join(' ') :
- options.dashArray.replace(/( *, *)/g, ' ');
- } else {
- stroke.dashStyle = '';
+ if (wasElementSupplied) {
+ var sourceElements = vid.getElementsByTagName('source');
+ var sources = [];
+ for (var j = 0; j < sourceElements.length; j++) {
+ sources.push(sourceElements[j].src);
}
- stroke.endcap = options.lineCap.replace('butt', 'flat');
- stroke.joinstyle = options.lineJoin;
- } else if (stroke) {
- container.removeChild(stroke);
- layer._stroke = null;
+ this._url = (sourceElements.length > 0) ? sources : [vid.src];
+ return;
}
- 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;
+ if (!isArray(this._url)) { this._url = [this._url]; }
- } else if (fill) {
- container.removeChild(fill);
- layer._fill = null;
+ 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);
}
- },
-
- _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;
- },
+ // @method getElement(): HTMLVideoElement
+ // Returns the instance of [`HTMLVideoElement`](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement)
+ // used by this overlay.
+});
- _bringToFront: function (layer) {
- L.DomUtil.toFront(layer._container);
- },
- _bringToBack: function (layer) {
- L.DomUtil.toBack(layer._container);
- }
-});
+// @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.
-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">');
- };
- }
- })();
+function videoOverlay(video, bounds, options) {
+ return new VideoOverlay(video, bounds, 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
+var DivOverlay = Layer.extend({
-/*
- * @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.Canvas = L.Renderer.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],
- onAdd: function () {
- L.Renderer.prototype.onAdd.call(this);
+ // @option className: String = ''
+ // A custom CSS class name to assign to the popup.
+ className: '',
- // Redraw vectors since canvas is cleared upon removal,
- // in case of removing the renderer itself from the map.
- this._draw();
+ // @option pane: String = 'popupPane'
+ // `Map pane` where the popup will be added.
+ pane: 'popupPane'
},
- _initContainer: function () {
- var container = this._container = document.createElement('canvas');
-
- 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);
-
- this._ctx = container.getContext('2d');
- },
+ initialize: function (options, source) {
+ setOptions(this, options);
- _updatePaths: function () {
- var layer;
- this._redrawBounds = null;
- for (var id in this._layers) {
- layer = this._layers[id];
- layer._update();
- }
- this._redraw();
+ this._source = source;
},
- _update: function () {
- if (this._map._animatingZoom && this._bounds) { return; }
-
- this._drawnLayers = {};
-
- L.Renderer.prototype._update.call(this);
+ onAdd: function (map) {
+ this._zoomAnimated = map._zoomAnimated;
- var b = this._bounds,
- container = this._container,
- size = b.getSize(),
- m = L.Browser.retina ? 2 : 1;
+ if (!this._container) {
+ this._initLayout();
+ }
- L.DomUtil.setPosition(container, b.min);
+ if (map._fadeAnimated) {
+ setOpacity(this._container, 0);
+ }
- // 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';
+ clearTimeout(this._removeTimeout);
+ this.getPane().appendChild(this._container);
+ this.update();
- if (L.Browser.retina) {
- this._ctx.scale(2, 2);
+ if (map._fadeAnimated) {
+ setOpacity(this._container, 1);
}
- // 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');
+ this.bringToFront();
},
- _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;
+ onRemove: function (map) {
+ if (map._fadeAnimated) {
+ setOpacity(this._container, 0);
+ this._removeTimeout = setTimeout(bind(remove, undefined, this._container), 200);
+ } else {
+ remove(this._container);
+ }
},
- _addPath: function (layer) {
- this._requestRedraw(layer);
+ // @namespace Popup
+ // @method getLatLng: LatLng
+ // Returns the geographical point of popup.
+ getLatLng: function () {
+ return this._latlng;
},
- _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;
+ // @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();
}
-
- delete layer._order;
-
- delete this._layers[L.stamp(layer)];
-
- this._requestRedraw(layer);
+ return this;
},
- _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);
+ // @method getContent: String|HTMLElement
+ // Returns the content of the popup.
+ getContent: function () {
+ return this._content;
},
- _updateStyle: function (layer) {
- this._updateDashArray(layer);
- this._requestRedraw(layer);
+ // @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;
},
- _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;
- }
+ // @method getElement: String|HTMLElement
+ // Alias for [getContent()](#popup-getcontent)
+ getElement: function () {
+ return this._container;
},
- _requestRedraw: function (layer) {
+ // @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; }
- this._extendRedrawBounds(layer);
- this._redrawRequest = this._redrawRequest || L.Util.requestAnimFrame(this._redraw, this);
- },
+ this._container.style.visibility = 'hidden';
- _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]));
+ this._updateContent();
+ this._updateLayout();
+ this._updatePosition();
+
+ this._container.style.visibility = '';
+
+ this._adjustPan();
},
- _redraw: function () {
- this._redrawRequest = null;
+ getEvents: function () {
+ var events = {
+ zoom: this._updatePosition,
+ viewreset: this._updatePosition
+ };
- this._clear(); // clear layers in redraw bounds
- this._draw(); // draw layers
+ if (this._zoomAnimated) {
+ events.zoomanim = this._animateZoom;
+ }
+ return events;
+ },
- this._redrawBounds = null;
+ // @method isOpen: Boolean
+ // Returns `true` when the popup is visible on the map.
+ isOpen: function () {
+ return !!this._map && this._map.hasLayer(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);
+ // @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;
},
- _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();
+ // @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;
+ },
- this._drawing = true;
+ _updateContent: function () {
+ if (!this._content) { return; }
- for (var order = this._drawFirst; order; order = order.next) {
- layer = order.layer;
- if (!bounds || (layer._pxBounds && layer._pxBounds.intersects(bounds))) {
- layer._updatePath();
+ var node = this._contentNode;
+ var content = (typeof this._content === 'function') ? this._content(this._source || this) : this._content;
+
+ if (typeof content === 'string') {
+ node.innerHTML = content;
+ } else {
+ while (node.hasChildNodes()) {
+ node.removeChild(node.firstChild);
}
+ node.appendChild(content);
}
-
- this._drawing = false;
-
- this._ctx.restore(); // Restore state before clipping.
+ this.fire('contentupdate');
},
- _updatePoly: function (layer, closed) {
- if (!this._drawing) { return; }
+ _updatePosition: function () {
+ if (!this._map) { return; }
+
+ var pos = this._map.latLngToLayerPoint(this._latlng),
+ offset = toPoint(this.options.offset),
+ anchor = this._getAnchor();
+
+ if (this._zoomAnimated) {
+ setPosition(this._container, pos.add(anchor));
+ } else {
+ offset = offset.add(pos).add(anchor);
+ }
+
+ 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 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
+ *
+ * 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);
+ * ```
+ */
+
+
+// @namespace Popup
+var Popup = DivOverlay.extend({
+
+ // @section
+ // @aka Popup options
+ options: {
+ // @option maxWidth: Number = 300
+ // Max width of the popup, in pixels.
+ maxWidth: 300,
+
+ // @option minWidth: Number = 50
+ // Min width of the popup, in pixels.
+ minWidth: 50,
+
+ // @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 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 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,
+
+ // @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,
+
+ // @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,
+
+ // @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.
+
+ // @option className: String = ''
+ // A custom CSS class name to assign to the popup.
+ className: ''
+ },
+
+ // @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;
+ },
+
+ onAdd: function (map) {
+ 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});
+
+ 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);
+ }
+ }
+ },
+
+ onRemove: function (map) {
+ 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._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);
+ }
+ }
+ },
+
+ getEvents: function () {
+ var events = DivOverlay.prototype.getEvents.call(this);
+
+ if (this.options.closeOnClick !== undefined ? this.options.closeOnClick : this._map.options.closePopupOnClick) {
+ events.preclick = this._close;
+ }
+
+ if (this.options.keepInView) {
+ events.moveend = this._adjustPan;
+ }
+
+ return events;
+ },
+
+ _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');
+
+ var wrapper = this._wrapper = create$1('div', prefix + '-content-wrapper', container);
+ this._contentNode = create$1('div', prefix + '-content', wrapper);
+
+ 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);
+
+ if (this.options.closeButton) {
+ var closeButton = this._closeButton = create$1('a', prefix + '-close-button', container);
+ closeButton.href = '#close';
+ closeButton.innerHTML = '×';
+
+ on(closeButton, 'click', this._onCloseButtonClick, this);
+ }
+ },
+
+ _updateLayout: function () {
+ var container = this._contentNode,
+ style = container.style;
+
+ style.width = '';
+ style.whiteSpace = 'nowrap';
+
+ var width = container.offsetWidth;
+ width = Math.min(width, this.options.maxWidth);
+ width = Math.max(width, this.options.minWidth);
+
+ style.width = (width + 1) + 'px';
+ style.whiteSpace = '';
+
+ style.height = '';
+
+ var height = container.offsetHeight,
+ maxHeight = this.options.maxHeight,
+ scrolledClass = 'leaflet-popup-scrolled';
+
+ if (maxHeight && height > maxHeight) {
+ style.height = maxHeight + 'px';
+ addClass(container, scrolledClass);
+ } else {
+ removeClass(container, scrolledClass);
+ }
+
+ this._containerWidth = this._container.offsetWidth;
+ },
+
+ _animateZoom: function (e) {
+ var pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center),
+ anchor = this._getAnchor();
+ setPosition(this._container, pos.add(anchor));
+ },
+
+ _adjustPan: function () {
+ if (!this.options.autoPan || (this._map._panAnim && this._map._panAnim._inProgress)) { return; }
+
+ 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);
+
+ layerPos._add(getPosition(this._container));
+
+ 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;
+
+ 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]);
+ }
+ },
+
+ _onCloseButtonClick: function (e) {
+ this._close();
+ stop(e);
+ },
+
+ _getAnchor: function () {
+ // Where should we anchor the popup on the source layer?
+ return toPoint(this._source && this._source._getPopupAnchor ? this._source._getPopupAnchor() : [0, 0]);
+ }
+
+});
+
+// @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);
+};
+
+
+/* @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
+});
+
+
+// @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);
+ }
+
+ if (latlng) {
+ popup.setLatLng(latlng);
+ }
+
+ if (this.hasLayer(popup)) {
+ return this;
+ }
+
+ if (this._popup && this._popup.options.autoClose) {
+ this.closePopup();
+ }
+
+ this._popup = popup;
+ return this.addLayer(popup);
+ },
+
+ // @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;
+ }
+});
+
+/*
+ * @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();
+ * ```
+ *
+ * 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.
+ */
+
+// @section Popup methods
+Layer.include({
+
+ // @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) {
+
+ 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);
+ }
+
+ if (!this._popupHandlersAdded) {
+ this.on({
+ click: this._openPopup,
+ keypress: this._onKeyPress,
+ remove: this.closePopup,
+ move: this._movePopup
+ });
+ this._popupHandlersAdded = true;
+ }
+
+ return this;
+ },
+
+ // @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;
+ }
+ return this;
+ },
+
+ // @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 (!(layer instanceof Layer)) {
+ latlng = layer;
+ layer = this;
+ }
+
+ if (layer instanceof FeatureGroup) {
+ for (var id in this._layers) {
+ layer = this._layers[id];
+ break;
+ }
+ }
+
+ if (!latlng) {
+ latlng = layer.getCenter ? layer.getCenter() : layer.getLatLng();
+ }
+
+ if (this._popup && this._map) {
+ // set popup source to this layer
+ this._popup._source = layer;
+
+ // update the popup (content, layout, ect...)
+ this._popup.update();
+
+ // open the popup on the map
+ this._map.openPopup(this._popup, latlng);
+ }
+
+ 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;
+ },
+
+ // @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;
+ },
+
+ // @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 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;
+ },
+
+ // @method getPopup(): Popup
+ // Returns the popup bound to this layer.
+ getPopup: function () {
+ return this._popup;
+ },
+
+ _openPopup: function (e) {
+ var layer = e.layer || e.target;
+
+ if (!this._popup) {
+ return;
+ }
+
+ if (!this._map) {
+ return;
+ }
+
+ // prevent map click
+ stop(e);
+
+ // 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;
+ }
+
+ // 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);
+ }
+ },
+
+ _movePopup: function (e) {
+ this._popup.setLatLng(e.latlng);
+ },
+
+ _onKeyPress: function (e) {
+ if (e.originalEvent.keyCode === 13) {
+ this._openPopup(e);
+ }
+ }
+});
+
+/*
+ * @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.
+ */
+
+
+// @namespace Tooltip
+var Tooltip = DivOverlay.extend({
+
+ // @section
+ // @aka Tooltip options
+ options: {
+ // @option pane: String = 'tooltipPane'
+ // `Map pane` where the tooltip will be added.
+ pane: 'tooltipPane',
+
+ // @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',
+
+ // @option permanent: Boolean = false
+ // Whether to open the tooltip permanently or only on mouseover.
+ permanent: false,
+
+ // @option sticky: Boolean = false
+ // If true, the tooltip will follow the mouse instead of being fixed at the feature center.
+ sticky: false,
+
+ // @option interactive: Boolean = false
+ // If true, the tooltip will listen to the feature events.
+ interactive: false,
+
+ // @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 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);
+
+ // @namespace Map
+ // @section Tooltip events
+ // @event tooltipclose: TooltipEvent
+ // Fired when a tooltip in the map is closed.
+ map.fire('tooltipclose', {tooltip: this});
+
+ 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);
+ }
+ },
+
+ getEvents: function () {
+ var events = DivOverlay.prototype.getEvents.call(this);
+
+ if (touch && !this.options.permanent) {
+ events.preclick = this._close;
+ }
+
+ return events;
+ },
+
+ _close: function () {
+ if (this._map) {
+ this._map.closeTooltip(this);
+ }
+ },
+
+ _initLayout: function () {
+ var prefix = 'leaflet-tooltip',
+ className = prefix + ' ' + (this.options.className || '') + ' leaflet-zoom-' + (this._zoomAnimated ? 'animated' : 'hide');
+
+ this._contentNode = this._container = create$1('div', className);
+ },
+
+ _updateLayout: function () {},
+
+ _adjustPan: 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 = toPoint(this.options.offset),
+ anchor = this._getAnchor();
+
+ 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));
+ }
+
+ 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);
+ },
+
+ _updatePosition: function () {
+ var pos = this._map.latLngToLayerPoint(this._latlng);
+ this._setPosition(pos);
+ },
+
+ setOpacity: function (opacity) {
+ this.options.opacity = opacity;
+
+ if (this._container) {
+ setOpacity(this._container, opacity);
+ }
+ },
+
+ _animateZoom: function (e) {
+ var pos = this._map._latLngToNewLayerPoint(this._latlng, e.zoom, e.center);
+ this._setPosition(pos);
+ },
+
+ _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]);
+ }
+
+});
+
+// @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);
+};
+
+// @namespace Map
+// @section Methods for Layers and Controls
+Map.include({
+
+ // @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 (latlng) {
+ tooltip.setLatLng(latlng);
+ }
+
+ if (this.hasLayer(tooltip)) {
+ return this;
+ }
+
+ return this.addLayer(tooltip);
+ },
+
+ // @method closeTooltip(tooltip?: Tooltip): this
+ // Closes the tooltip given as parameter.
+ closeTooltip: function (tooltip) {
+ if (tooltip) {
+ this.removeLayer(tooltip);
+ }
+ return this;
+ }
+
+});
+
+/*
+ * @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();
+ * ```
+ */
+
+// @section Tooltip methods
+Layer.include({
+
+ // @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) {
+
+ 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);
+
+ }
+
+ this._initTooltipInteractions();
+
+ if (this._tooltip.options.permanent && this._map && this._map.hasLayer(this)) {
+ this.openTooltip();
+ }
+
+ return this;
+ },
+
+ // @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;
+ },
+
+ _initTooltipInteractions: function (remove$$1) {
+ if (!remove$$1 && this._tooltipHandlersAdded) { return; }
+ var onOff = remove$$1 ? 'off' : 'on',
+ events = {
+ remove: this.closeTooltip,
+ move: this._moveTooltip
+ };
+ if (!this._tooltip.options.permanent) {
+ events.mouseover = this._openTooltip;
+ events.mouseout = this.closeTooltip;
+ if (this._tooltip.options.sticky) {
+ events.mousemove = this._moveTooltip;
+ }
+ if (touch) {
+ events.click = this._openTooltip;
+ }
+ } else {
+ events.add = this._openTooltip;
+ }
+ this[onOff](events);
+ this._tooltipHandlersAdded = !remove$$1;
+ },
- var i, j, len2, p,
- parts = layer._parts,
- len = parts.length,
- ctx = this._ctx;
+ // @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 (!(layer instanceof Layer)) {
+ latlng = layer;
+ layer = this;
+ }
- if (!len) { return; }
+ if (layer instanceof FeatureGroup) {
+ for (var id in this._layers) {
+ layer = this._layers[id];
+ break;
+ }
+ }
- this._drawnLayers[layer._leaflet_id] = layer;
+ if (!latlng) {
+ latlng = layer.getCenter ? layer.getCenter() : layer.getLatLng();
+ }
- ctx.beginPath();
+ if (this._tooltip && this._map) {
+
+ // set tooltip source to this layer
+ this._tooltip._source = layer;
+
+ // update the tooltip (content, layout, ect...)
+ this._tooltip.update();
+
+ // open the tooltip on the map
+ this._map.openTooltip(this._tooltip, latlng);
- if (ctx.setLineDash) {
- ctx.setLineDash(layer.options && layer.options._dashArray || []);
+ // 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);
+ }
}
- 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);
+ return this;
+ },
+
+ // @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);
}
- if (closed) {
- ctx.closePath();
+ }
+ 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);
}
}
+ return this;
+ },
- this._fillStroke(ctx, layer);
+ // @method isTooltipOpen(): boolean
+ // Returns `true` if the tooltip bound to this layer is currently open.
+ isTooltipOpen: function () {
+ return this._tooltip.isOpen();
+ },
- // TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature
+ // @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;
+ },
+
+ // @method getTooltip(): Tooltip
+ // Returns the tooltip bound to this layer.
+ getTooltip: function () {
+ return this._tooltip;
+ },
+
+ _openTooltip: function (e) {
+ var layer = e.layer || e.target;
+
+ if (!this._tooltip || !this._map) {
+ return;
+ }
+ this.openTooltip(layer, this._tooltip.options.sticky ? e.latlng : undefined);
+ },
+
+ _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);
+ }
+});
+
+/*
+ * @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.
+ */
+
+var DivIcon = Icon.extend({
+ options: {
+ // @section
+ // @aka DivIcon options
+ iconSize: [12, 12], // also can be set through CSS
+
+ // iconAnchor: (Point),
+ // popupAnchor: (Point),
+
+ // @option html: String = ''
+ // Custom HTML code to put inside the div element, empty by default.
+ html: false,
+
+ // @option bgPos: Point = [0, 0]
+ // Optional relative position of the background, in pixels
+ bgPos: null,
+
+ className: 'leaflet-div-icon'
+ },
+
+ createIcon: function (oldIcon) {
+ var div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'),
+ options = this.options;
+
+ div.innerHTML = options.html !== false ? options.html : '';
+
+ if (options.bgPos) {
+ var bgPos = toPoint(options.bgPos);
+ div.style.backgroundPosition = (-bgPos.x) + 'px ' + (-bgPos.y) + 'px';
+ }
+ this._setIconStyles(div, 'icon');
+
+ return div;
},
- _updateCircle: function (layer) {
+ createShadow: function () {
+ return null;
+ }
+});
+
+// @factory L.divIcon(options: DivIcon options)
+// Creates a `DivIcon` instance with the given options.
+function divIcon(options) {
+ return new DivIcon(options);
+}
+
+Icon.Default = IconDefault;
+
+/*
+ * @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 GridLayer = Layer.extend({
+
+ // @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,
+
+ // @option opacity: Number = 1.0
+ // Opacity of the tiles. Can be used in the `createTile()` function.
+ opacity: 1,
+
+ // @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,
+
+ // @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,
+
+ // @option updateInterval: Number = 200
+ // Tiles will not update more than once every `updateInterval` milliseconds when panning.
+ updateInterval: 200,
+
+ // @option zIndex: Number = 1
+ // The explicit zIndex of the tile layer.
+ zIndex: 1,
- if (!this._drawing || layer._empty()) { return; }
+ // @option bounds: LatLngBounds = undefined
+ // If set, tiles will only be loaded inside the set `LatLngBounds`.
+ bounds: null,
- var p = layer._point,
- ctx = this._ctx,
- r = layer._radius,
- s = (layer._radiusY || r) / r;
+ // @option minZoom: Number = 0
+ // The minimum zoom level down to which this layer will be displayed (inclusive).
+ minZoom: 0,
- this._drawnLayers[layer._leaflet_id] = layer;
+ // @option maxZoom: Number = undefined
+ // The maximum zoom level up to which this layer will be displayed (inclusive).
+ maxZoom: undefined,
- if (s !== 1) {
- ctx.save();
- ctx.scale(1, s);
- }
+ // @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,
- ctx.beginPath();
- ctx.arc(p.x, p.y / s, r, 0, Math.PI * 2, false);
+ // @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,
- if (s !== 1) {
- ctx.restore();
- }
+ // @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,
- this._fillStroke(ctx, layer);
- },
+ // @option pane: String = 'tilePane'
+ // `Map pane` where the grid layer will be added.
+ pane: 'tilePane',
- _fillStroke: function (ctx, layer) {
- var options = layer.options;
+ // @option className: String = ''
+ // A custom class name to assign to the tile layer. Empty by default.
+ className: '',
- if (options.fill) {
- ctx.globalAlpha = options.fillOpacity;
- ctx.fillStyle = options.fillColor || options.color;
- ctx.fill(options.fillRule || 'evenodd');
- }
+ // @option keepBuffer: Number = 2
+ // When panning the map, keep this many rows and columns of tiles before unloading them.
+ keepBuffer: 2
+ },
- 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();
- }
+ initialize: function (options) {
+ setOptions(this, options);
},
- // 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
+ onAdd: function () {
+ this._initContainer();
- _onClick: function (e) {
- var point = this._map.mouseEventToLayerPoint(e), layer, clickedLayer;
+ this._levels = {};
+ this._tiles = {};
- 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) {
- L.DomEvent._fakeStop(e);
- this._fireEvent([clickedLayer], e);
- }
+ this._resetView();
+ this._update();
},
- _onMouseMove: function (e) {
- if (!this._map || this._map.dragging.moving() || this._map._animatingZoom) { return; }
-
- var point = this._map.mouseEventToLayerPoint(e);
- this._handleMouseHover(e, point);
+ beforeAdd: function (map) {
+ map._addZoomLimit(this);
},
-
- _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;
- }
+ onRemove: function (map) {
+ this._removeAllTiles();
+ remove(this._container);
+ map._removeZoomLimit(this);
+ this._container = null;
+ this._tileZoom = undefined;
},
- _handleMouseHover: function (e, point) {
- var layer, candidateHoveredLayer;
-
- for (var order = this._drawFirst; order; order = order.next) {
- layer = order.layer;
- if (layer.options.interactive && layer._containsPoint(point)) {
- candidateHoveredLayer = layer;
- }
- }
-
- if (candidateHoveredLayer !== this._hoveredLayer) {
- this._handleMouseOut(e);
-
- if (candidateHoveredLayer) {
- L.DomUtil.addClass(this._container, 'leaflet-interactive'); // change cursor
- this._fireEvent([candidateHoveredLayer], e, 'mouseover');
- this._hoveredLayer = candidateHoveredLayer;
- }
+ // @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 (this._hoveredLayer) {
- this._fireEvent([this._hoveredLayer], e);
+ // @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;
},
- _fireEvent: function (layers, e, type) {
- this._map._fireDOMEvent(e, type || e.type, layers);
+ // @method getContainer: HTMLElement
+ // Returns the HTML element that contains the tiles for this layer.
+ getContainer: function () {
+ return this._container;
},
- _bringToFront: function (layer) {
- var order = layer._order;
- var next = order.next;
- var prev = order.prev;
-
- 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;
- }
-
- order.prev = this._drawLast;
- this._drawLast.next = order;
+ // @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;
+ },
- order.next = null;
- this._drawLast = order;
+ // @method setZIndex(zIndex: Number): this
+ // Changes the [zIndex](#gridlayer-zindex) of the grid layer.
+ setZIndex: function (zIndex) {
+ this.options.zIndex = zIndex;
+ this._updateZIndex();
- this._requestRedraw(layer);
+ return this;
},
- _bringToBack: function (layer) {
- var order = layer._order;
- var next = order.next;
- var prev = order.prev;
+ // @method isLoading: Boolean
+ // Returns `true` if any tile in the grid layer has not finished loading.
+ isLoading: function () {
+ return this._loading;
+ },
- 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;
+ // @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;
+ },
- order.prev = null;
-
- order.next = this._drawFirst;
- this._drawFirst.prev = order;
- this._drawFirst = order;
-
- this._requestRedraw(layer);
- }
-});
+ getEvents: function () {
+ var events = {
+ viewprereset: this._invalidateAll,
+ viewreset: this._resetView,
+ zoom: this._resetView,
+ moveend: this._onMoveEnd
+ };
-// @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;
-}());
+ 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);
+ }
-// @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;
-};
+ events.move = this._onMove;
+ }
-L.Polyline.prototype._containsPoint = function (p, closed) {
- var i, j, k, len, len2, part,
- w = this._clickTolerance();
+ if (this._zoomAnimated) {
+ events.zoomanim = this._animateZoom;
+ }
- if (!this._pxBounds.contains(p)) { return false; }
+ return events;
+ },
- // hit detection for polylines
- for (i = 0, len = this._parts.length; i < len; i++) {
- part = this._parts[i];
+ // @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');
+ },
- for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
- if (!closed && (j === 0)) { continue; }
+ // @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);
+ },
- if (L.LineUtil.pointToSegmentDistance(p, part[k], part[j]) <= w) {
- return true;
- }
- }
- }
- return false;
-};
+ _updateZIndex: function () {
+ if (this._container && this.options.zIndex !== undefined && this.options.zIndex !== null) {
+ this._container.style.zIndex = this.options.zIndex;
+ }
+ },
-L.Polygon.prototype._containsPoint = function (p) {
- var inside = false,
- part, p1, p2, i, j, k, len, len2;
+ _setAutoZIndex: function (compare) {
+ // go through all other layers of the same pane, set zIndex to max + 1 (front) or min - 1 (back)
- if (!this._pxBounds.contains(p)) { return false; }
+ var layers = this.getPane().children,
+ edgeZIndex = -compare(-Infinity, Infinity); // -Infinity for max, Infinity for min
- // ray casting algorithm for detecting if point is in polygon
- for (i = 0, len = this._parts.length; i < len; i++) {
- part = this._parts[i];
+ for (var i = 0, len = layers.length, zIndex; i < len; i++) {
- for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
- p1 = part[j];
- p2 = part[k];
+ zIndex = layers[i].style.zIndex;
- 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;
+ if (layers[i] !== this._container && zIndex) {
+ edgeZIndex = compare(edgeZIndex, +zIndex);
}
}
- }
- // also check if it's on polygon stroke
- return inside || L.Polyline.prototype._containsPoint.call(this, p, true);
-};
+ if (isFinite(edgeZIndex)) {
+ this.options.zIndex = edgeZIndex + compare(-1, 1);
+ this._updateZIndex();
+ }
+ },
-L.CircleMarker.prototype._containsPoint = function (p) {
- return p.distanceTo(this._point) <= this._radius + this._clickTolerance();
-};
+ _updateOpacity: function () {
+ if (!this._map) { return; }
+ // IE doesn't inherit filter opacity properly, so we're forced to set it on tiles
+ if (ielt9) { return; }
+ setOpacity(this._container, this.options.opacity);
-/*
- * @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);
- * ```
- */
+ var now = +new Date(),
+ nextFrame = false,
+ willPrune = false;
-L.GeoJSON = L.FeatureGroup.extend({
+ for (var key in this._tiles) {
+ var tile = this._tiles[key];
+ if (!tile.current || !tile.loaded) { continue; }
- /* @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.
- */
+ var fade = Math.min(1, (now - tile.loaded) / 200);
- initialize: function (geojson, options) {
- L.setOptions(this, options);
+ setOpacity(tile.el, fade);
+ if (fade < 1) {
+ nextFrame = true;
+ } else {
+ if (tile.active) {
+ willPrune = true;
+ } else {
+ this._onOpaqueTile(tile);
+ }
+ tile.active = true;
+ }
+ }
- this._layers = {};
+ if (willPrune && !this._noPrune) { this._pruneTiles(); }
- if (geojson) {
- this.addData(geojson);
+ if (nextFrame) {
+ cancelAnimFrame(this._fadeFrame);
+ this._fadeFrame = requestAnimFrame(this._updateOpacity, this);
}
},
- // @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;
+ _onOpaqueTile: falseFn,
- 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;
+ _initContainer: function () {
+ if (this._container) { return; }
+
+ this._container = create$1('div', 'leaflet-layer ' + (this.options.className || ''));
+ this._updateZIndex();
+
+ if (this.options.opacity < 1) {
+ this._updateOpacity();
}
- var options = this.options;
+ this.getPane().appendChild(this._container);
+ },
- if (options.filter && !options.filter(geojson)) { return this; }
+ _updateLevels: function () {
- var layer = L.GeoJSON.geometryToLayer(geojson, options);
- if (!layer) {
- return this;
- }
- layer.feature = L.GeoJSON.asFeature(geojson);
+ var zoom = this._tileZoom,
+ maxZoom = this.options.maxZoom;
- layer.defaultOptions = layer.options;
- this.resetStyle(layer);
+ if (zoom === undefined) { return undefined; }
- if (options.onEachFeature) {
- options.onEachFeature(geojson, layer);
+ 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 this.addLayer(layer);
- },
-
- // @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;
- },
+ var level = this._levels[zoom],
+ map = this._map;
- // @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);
- },
+ if (!level) {
+ level = this._levels[zoom] = {};
- _setLayerStyle: function (layer, style) {
- if (typeof style === 'function') {
- style = style(layer.feature);
- }
- if (layer.setStyle) {
- layer.setStyle(style);
- }
- }
-});
+ level.el = create$1('div', 'leaflet-tile-container leaflet-zoom-animated', this._container);
+ level.el.style.zIndex = maxZoom;
-// @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;
- }
+ level.origin = map.project(map.unproject(map.getPixelOrigin()), zoom).round();
+ level.zoom = zoom;
- switch (geometry.type) {
- case 'Point':
- latlng = coordsToLatLng(coords);
- return pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng);
+ this._setZoomTransform(level, map.getCenter(), map.getZoom());
- 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);
+ // force the browser to consider the newly added element for transition
+ falseFn(level.el.offsetWidth);
- default:
- throw new Error('Invalid GeoJSON object.');
+ this._onCreateLevel(level);
}
- },
- // @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]);
+ this._level = level;
+
+ return level;
},
- // @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 = [];
+ _onUpdateLevel: falseFn,
- 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]);
+ _onRemoveLevel: falseFn,
- latlngs.push(latlng);
- }
+ _onCreateLevel: falseFn,
- return latlngs;
- },
+ _pruneTiles: function () {
+ if (!this._map) {
+ return;
+ }
- // @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];
- },
+ var key, tile;
- // @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 = [];
+ var zoom = this._map.getZoom();
+ if (zoom > this.options.maxZoom ||
+ zoom < this.options.minZoom) {
+ this._removeAllTiles();
+ return;
+ }
- 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]));
+ for (key in this._tiles) {
+ tile = this._tiles[key];
+ tile.retain = tile.current;
}
- if (!levelsDeep && closed) {
- coords.push(coords[0]);
+ 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 coords;
+ for (key in this._tiles) {
+ if (!this._tiles[key].retain) {
+ this._removeTile(key);
+ }
+ }
},
- getFeature: function (layer, newGeometry) {
- return layer.feature ?
- L.extend({}, layer.feature, {geometry: newGeometry}) :
- L.GeoJSON.asFeature(newGeometry);
+ _removeTilesAtZoom: function (zoom) {
+ for (var key in this._tiles) {
+ if (this._tiles[key].coords.z !== zoom) {
+ continue;
+ }
+ this._removeTile(key);
+ }
},
- // @function asFeature(geojson: Object): Object
- // Normalize GeoJSON geometries/features into GeoJSON features.
- asFeature: function (geojson) {
- if (geojson.type === 'Feature' || geojson.type === 'FeatureCollection') {
- return geojson;
+ _removeAllTiles: function () {
+ for (var key in this._tiles) {
+ this._removeTile(key);
}
+ },
- return {
- type: 'Feature',
- properties: {},
- geometry: geojson
- };
- }
-});
-
-var PointToGeoJSON = {
- toGeoJSON: function () {
- return L.GeoJSON.getFeature(this, {
- type: 'Point',
- coordinates: L.GeoJSON.latLngToCoords(this.getLatLng())
- });
- }
-};
+ _invalidateAll: function () {
+ for (var z in this._levels) {
+ remove(this._levels[z].el);
+ this._onRemoveLevel(z);
+ delete this._levels[z];
+ }
+ this._removeAllTiles();
-// @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);
+ this._tileZoom = undefined;
+ },
-// @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);
+ _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;
+ var key = this._tileCoordsToKey(coords2),
+ tile = this._tiles[key];
-// @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);
+ if (tile && tile.active) {
+ tile.retain = true;
+ return true;
- var coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 1 : 0);
+ } else if (tile && tile.loaded) {
+ tile.retain = true;
+ }
- return L.GeoJSON.getFeature(this, {
- type: (multi ? 'Multi' : '') + 'LineString',
- coordinates: coords
- });
-};
+ if (z2 > minZoom) {
+ return this._retainParent(x2, y2, z2, minZoom);
+ }
-// @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]);
+ return false;
+ },
- var coords = L.GeoJSON.latLngsToCoords(this._latlngs, multi ? 2 : holes ? 1 : 0, true);
+ _retainChildren: function (x, y, z, maxZoom) {
- if (!holes) {
- coords = [coords];
- }
+ for (var i = 2 * x; i < 2 * x + 2; i++) {
+ for (var j = 2 * y; j < 2 * y + 2; j++) {
- return L.GeoJSON.getFeature(this, {
- type: (multi ? 'Multi' : '') + 'Polygon',
- coordinates: coords
- });
-};
+ var coords = new Point(i, j);
+ coords.z = z + 1;
+ var key = this._tileCoordsToKey(coords),
+ tile = this._tiles[key];
-// @namespace LayerGroup
-L.LayerGroup.include({
- toMultiPoint: function () {
- var coords = [];
+ if (tile && tile.active) {
+ tile.retain = true;
+ continue;
- this.eachLayer(function (layer) {
- coords.push(layer.toGeoJSON().geometry.coordinates);
- });
+ } else if (tile && tile.loaded) {
+ tile.retain = true;
+ }
- return L.GeoJSON.getFeature(this, {
- type: 'MultiPoint',
- coordinates: coords
- });
+ if (z + 1 < maxZoom) {
+ this._retainChildren(i, j, z + 1, maxZoom);
+ }
+ }
+ }
},
- // @method toGeoJSON(): Object
- // Returns a [`GeoJSON`](http://en.wikipedia.org/wiki/GeoJSON) representation of the layer group (as a GeoJSON `GeometryCollection`).
- toGeoJSON: function () {
+ _resetView: function (e) {
+ var animating = e && (e.pinch || e.flyTo);
+ this._setView(this._map.getCenter(), this._map.getZoom(), animating, animating);
+ },
- var type = this.feature && this.feature.geometry && this.feature.geometry.type;
+ _animateZoom: function (e) {
+ this._setView(e.center, e.zoom, true, e.noUpdate);
+ },
- if (type === 'MultiPoint') {
- return this.toMultiPoint();
+ _clampZoom: function (zoom) {
+ var options = this.options;
+
+ if (undefined !== options.minNativeZoom && zoom < options.minNativeZoom) {
+ return options.minNativeZoom;
}
- var isGeometryCollection = type === 'GeometryCollection',
- jsons = [];
+ if (undefined !== options.maxNativeZoom && options.maxNativeZoom < zoom) {
+ return options.maxNativeZoom;
+ }
- this.eachLayer(function (layer) {
- if (layer.toGeoJSON) {
- var json = layer.toGeoJSON();
- jsons.push(isGeometryCollection ? json.geometry : L.GeoJSON.asFeature(json));
- }
- });
+ return zoom;
+ },
- if (isGeometryCollection) {
- return L.GeoJSON.getFeature(this, {
- geometries: jsons,
- type: 'GeometryCollection'
- });
+ _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: 'FeatureCollection',
- features: jsons
- };
- }
-});
+ var tileZoomChanged = this.options.updateWhenZooming && (tileZoom !== this._tileZoom);
-// @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;
+ if (!noUpdate || tileZoomChanged) {
+ this._tileZoom = tileZoom;
+ if (this._abortLoading) {
+ this._abortLoading();
+ }
-/*
- * @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._updateLevels();
+ this._resetGrid();
-L.Draggable = L.Evented.extend({
+ if (tileZoom !== undefined) {
+ this._update(center);
+ }
- 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 (!noPrune) {
+ this._pruneTiles();
+ }
- 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'
+ // Flag to prevent _updateOpacity from pruning tiles during
+ // a zoom anim or a pinch gesture
+ this._noPrune = !!noPrune;
}
- },
- // @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;
+ this._setZoomTransforms(center, zoom);
},
- // @method enable()
- // Enables the dragging ability
- enable: function () {
- if (this._enabled) { return; }
-
- L.DomEvent.on(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this);
-
- this._enabled = true;
+ _setZoomTransforms: function (center, zoom) {
+ for (var i in this._levels) {
+ this._setZoomTransform(this._levels[i], center, zoom);
+ }
},
- // @method disable()
- // Disables the dragging ability
- disable: function () {
- if (!this._enabled) { return; }
+ _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 we're currently dragging this draggable,
- // disabling it counts as first ending the drag.
- if (L.Draggable._dragging === this) {
- this.finishDrag();
+ if (any3d) {
+ setTransform(level.el, translate, scale);
+ } else {
+ setPosition(level.el, translate);
}
-
- L.DomEvent.off(this._dragStartTarget, L.Draggable.START.join(' '), this._onDown, this);
-
- 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;
-
- if (L.DomUtil.hasClass(this._element, 'leaflet-zoom-anim')) { return; }
-
- 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.
+ _resetGrid: function () {
+ var map = this._map,
+ crs = map.options.crs,
+ tileSize = this._tileSize = this.getTileSize(),
+ tileZoom = this._tileZoom;
- if (this._preventOutline) {
- L.DomUtil.preventOutline(this._element);
+ var bounds = this._map.getPixelWorldBounds(this._tileZoom);
+ if (bounds) {
+ this._globalTileRange = this._pxBoundsToTileRange(bounds);
}
- L.DomUtil.disableImageDrag();
- L.DomUtil.disableTextSelection();
-
- if (this._moving) { return; }
-
- // @event down: Event
- // Fired when a drag is about to start.
- this.fire('down');
-
- var first = e.touches ? e.touches[0] : e;
-
- this._startPoint = new L.Point(first.clientX, first.clientY);
-
- L.DomEvent
- .on(document, L.Draggable.MOVE[e.type], this._onMove, this)
- .on(document, L.Draggable.END[e.type], this._onUp, this);
+ 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)
+ ];
},
- _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; }
+ _onMoveEnd: function () {
+ if (!this._map || this._map._animatingZoom) { return; }
- if (e.touches && e.touches.length > 1) {
- this._moved = true;
- return;
- }
+ this._update();
+ },
- 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);
+ _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);
- if (!offset.x && !offset.y) { return; }
- if (Math.abs(offset.x) + Math.abs(offset.y) < this.options.clickTolerance) { return; }
+ return new Bounds(pixelCenter.subtract(halfSize), pixelCenter.add(halfSize));
+ },
- L.DomEvent.preventDefault(e);
+ // 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());
- if (!this._moved) {
- // @event dragstart: Event
- // Fired when a drag starts
- this.fire('dragstart');
+ if (center === undefined) { center = map.getCenter(); }
+ if (this._tileZoom === undefined) { return; } // if out of minzoom/maxzoom
- this._moved = true;
- this._startPos = L.DomUtil.getPosition(this._element).subtract(offset);
+ 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]));
- L.DomUtil.addClass(document.body, 'leaflet-dragging');
+ // 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'); }
- 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;
+ 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.DomUtil.addClass(this._lastTarget, 'leaflet-drag-target');
}
- this._newPos = this._startPos.add(offset);
- this._moving = true;
+ // _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; }
- L.Util.cancelAnimFrame(this._animRequest);
- this._lastEvent = e;
- this._animRequest = L.Util.requestAnimFrame(this._updatePosition, this, 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 Point(i, j);
+ coords.z = this._tileZoom;
- _updatePosition: function () {
- var e = {originalEvent: this._lastEvent};
+ if (!this._isValidTile(coords)) { continue; }
- // @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);
+ var tile = this._tiles[this._tileCoordsToKey(coords)];
+ if (tile) {
+ tile.current = true;
+ } else {
+ queue.push(coords);
+ }
+ }
+ }
- // @event drag: Event
- // Fired continuously during dragging.
- this.fire('drag', e);
- },
+ // 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);
+ });
- _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();
- },
+ 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');
+ }
- finishDrag: function () {
- L.DomUtil.removeClass(document.body, 'leaflet-dragging');
+ // create DOM fragment to append tiles in one batch
+ var fragment = document.createDocumentFragment();
- if (this._lastTarget) {
- L.DomUtil.removeClass(this._lastTarget, 'leaflet-drag-target');
- this._lastTarget = null;
- }
+ for (i = 0; i < queue.length; i++) {
+ this._addTile(queue[i], fragment);
+ }
- 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);
+ this._level.el.appendChild(fragment);
}
+ },
- L.DomUtil.enableImageDrag();
- L.DomUtil.enableTextSelection();
-
- if (this._moved && this._moving) {
- // ensure drag is not fired after dragend
- L.Util.cancelAnimFrame(this._animRequest);
+ _isValidTile: function (coords) {
+ var crs = this._map.options.crs;
- // @event dragend: DragEndEvent
- // Fired when the drag ends.
- this.fire('dragend', {
- distance: this._newPos.distanceTo(this._startPos)
- });
+ 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; }
}
- this._moving = false;
- L.Draggable._dragging = false;
- }
+ if (!this.options.bounds) { return true; }
-});
+ // don't load tile if it doesn't intersect the bounds in options
+ var tileBounds = this._tileCoordsToBounds(coords);
+ return toLatLngBounds(this.options.bounds).overlaps(tileBounds);
+ },
+ _keyToBounds: function (key) {
+ return this._tileCoordsToBounds(this._keyToTileCoords(key));
+ },
+ _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];
+ },
-/*
- 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.
-*/
+ // converts tile coordinates to its geographical bounds
+ _tileCoordsToBounds: function (coords) {
+ var bp = this._tileCoordsToNwSe(coords),
+ bounds = new LatLngBounds(bp[0], bp[1]);
-// @class Handler
-// @aka L.Handler
-// Abstract class for map interaction handlers
+ 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;
+ },
-L.Handler = L.Class.extend({
- initialize: function (map) {
- this._map = map;
+ // 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;
},
- // @method enable(): this
- // Enables the handler
- enable: function () {
- if (this._enabled) { return this; }
+ _removeTile: function (key) {
+ var tile = this._tiles[key];
+ if (!tile) { return; }
- this._enabled = true;
- this.addHooks();
- return this;
- },
+ remove(tile.el);
- // @method disable(): this
- // Disables the handler
- disable: function () {
- if (!this._enabled) { return this; }
+ delete this._tiles[key];
- this._enabled = false;
- this.removeHooks();
- return 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)
+ });
},
- // @method enabled(): Boolean
- // Returns `true` if the handler is enabled
- enabled: function () {
- return !!this._enabled;
- }
+ _initTile: function (tile) {
+ addClass(tile, 'leaflet-tile');
- // @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.
-});
+ var tileSize = this.getTileSize();
+ tile.style.width = tileSize.x + 'px';
+ tile.style.height = tileSize.y + 'px';
+ tile.onselectstart = falseFn;
+ tile.onmousemove = falseFn;
+ // update opacity on tiles in IE7-8 because of filter inheritance problems
+ if (ielt9 && this.options.opacity < 1) {
+ setOpacity(tile, this.options.opacity);
+ }
-/*
- * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default.
- */
+ // 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';
+ }
+ },
-// @namespace Map
-// @section Interaction Options
-L.Map.mergeOptions({
- // @option dragging: Boolean = true
- // Whether the map be draggable with mouse/touch or not.
- dragging: true,
+ _addTile: function (coords, container) {
+ var tilePos = this._getTilePos(coords),
+ key = this._tileCoordsToKey(coords);
- // @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,
+ var tile = this.createTile(this._wrapCoords(coords), bind(this._tileReady, this, coords));
- // @option inertiaDeceleration: Number = 3000
- // The rate with which the inertial movement slows down, in pixels/second².
- inertiaDeceleration: 3400, // px/s^2
+ this._initTile(tile);
- // @option inertiaMaxSpeed: Number = Infinity
- // Max speed of the inertial movement, in pixels/second.
- inertiaMaxSpeed: Infinity, // px/s
+ // 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));
+ }
- // @option easeLinearity: Number = 0.2
- easeLinearity: 0.2,
+ setPosition(tile, tilePos);
- // 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,
+ // save tile in cache
+ this._tiles[key] = {
+ el: tile,
+ coords: coords,
+ current: true
+ };
- // @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
-});
+ container.appendChild(tile);
+ // @event tileloadstart: TileEvent
+ // Fired when a tile is requested and starts loading.
+ this.fire('tileloadstart', {
+ tile: tile,
+ coords: coords
+ });
+ },
-L.Map.Drag = L.Handler.extend({
- addHooks: function () {
- if (!this._draggable) {
- var map = this._map;
+ _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._draggable = new L.Draggable(map._mapPane, map._container);
+ var key = this._tileCoordsToKey(coords);
- this._draggable.on({
- down: this._onDown,
- dragstart: this._onDragStart,
- drag: this._onDrag,
- dragend: this._onDragEnd
- }, this);
+ 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');
- this._draggable.on('predrag', this._onPreDragLimit, this);
- if (map.options.worldCopyJump) {
- this._draggable.on('predrag', this._onPreDragWrap, this);
- map.on('zoomend', this._onZoomEnd, this);
+ // @event tileload: TileEvent
+ // Fired when a tile loads.
+ this.fire('tileload', {
+ tile: tile.el,
+ coords: coords
+ });
+ }
- map.whenReady(this._onZoomEnd, this);
+ if (this._noTilesToLoad()) {
+ this._loading = false;
+ // @event load: Event
+ // Fired when the grid layer loaded all visible tiles.
+ this.fire('load');
+
+ 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);
}
}
- L.DomUtil.addClass(this._map._container, 'leaflet-grab leaflet-touch-drag');
- this._draggable.enable();
- this._positions = [];
- this._times = [];
},
- removeHooks: function () {
- L.DomUtil.removeClass(this._map._container, 'leaflet-grab');
- L.DomUtil.removeClass(this._map._container, 'leaflet-touch-drag');
- this._draggable.disable();
+ _getTilePos: function (coords) {
+ return coords.scaleBy(this.getTileSize()).subtract(this._level.origin);
},
- moved: function () {
- return this._draggable && this._draggable._moved;
+ _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;
},
- moving: function () {
- return this._draggable && this._draggable._moving;
+ _pxBoundsToTileRange: function (bounds) {
+ var tileSize = this.getTileSize();
+ return new Bounds(
+ bounds.min.unscaleBy(tileSize).floor(),
+ bounds.max.unscaleBy(tileSize).ceil().subtract([1, 1]));
},
- _onDown: function () {
- this._map._stop();
- },
+ _noTilesToLoad: function () {
+ for (var key in this._tiles) {
+ if (!this._tiles[key].loaded) { return false; }
+ }
+ return true;
+ }
+});
- _onDragStart: function () {
- var map = this._map;
+// @factory L.gridLayer(options?: GridLayer options)
+// Creates a new instance of GridLayer with the supplied options.
+function gridLayer(options) {
+ return new GridLayer(options);
+}
- if (this._map.options.maxBounds && this._map.options.maxBoundsViscosity) {
- var bounds = L.latLngBounds(this._map.options.maxBounds);
+/*
+ * @class TileLayer
+ * @inherits GridLayer
+ * @aka L.TileLayer
+ * Used to load and display tile layers on the map. Extends `GridLayer`.
+ *
+ * @example
+ *
+ * ```js
+ * L.tileLayer('https://{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:
+ *
+ * ```
+ * L.tileLayer('http://{s}.somedomain.com/{foo}/{z}/{x}/{y}.png', {foo: 'bar'});
+ * ```
+ */
- this._offsetLimit = L.bounds(
- this._map.latLngToContainerPoint(bounds.getNorthWest()).multiplyBy(-1),
- this._map.latLngToContainerPoint(bounds.getSouthEast()).multiplyBy(-1)
- .add(this._map.getSize()));
- this._viscosity = Math.min(1.0, Math.max(0.0, this._map.options.maxBoundsViscosity));
- } else {
- this._offsetLimit = null;
- }
+var TileLayer = GridLayer.extend({
- map
- .fire('movestart')
- .fire('dragstart');
+ // @section
+ // @aka TileLayer options
+ options: {
+ // @option minZoom: Number = 0
+ // The minimum zoom level down to which this layer will be displayed (inclusive).
+ minZoom: 0,
- if (map.options.inertia) {
- this._positions = [];
- this._times = [];
- }
- },
+ // @option maxZoom: Number = 18
+ // The maximum zoom level up to which this layer will be displayed (inclusive).
+ maxZoom: 18,
- _onDrag: function (e) {
- if (this._map.options.inertia) {
- var time = this._lastTime = +new Date(),
- pos = this._lastPos = this._draggable._absPos || this._draggable._newPos;
+ // @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',
- this._positions.push(pos);
- this._times.push(time);
+ // @option errorTileUrl: String = ''
+ // URL to the tile image to show in place of the tile that failed to load.
+ errorTileUrl: '',
- if (time - this._times[0] > 50) {
- this._positions.shift();
- this._times.shift();
- }
- }
+ // @option zoomOffset: Number = 0
+ // The zoom number used in tile URLs will be offset with this value.
+ zoomOffset: 0,
- this._map
- .fire('move', e)
- .fire('drag', e);
- },
+ // @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,
- _onZoomEnd: function () {
- var pxCenter = this._map.getSize().divideBy(2),
- pxWorldCenter = this._map.latLngToLayerPoint([0, 0]);
+ // @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,
- this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x;
- this._worldWidth = this._map.getPixelWorldBounds().getSize().x;
- },
+ // @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,
- _viscousLimit: function (value, threshold) {
- return value - (value - threshold) * this._viscosity;
+ // @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
},
- _onPreDragLimit: function () {
- if (!this._viscosity || !this._offsetLimit) { return; }
+ initialize: function (url, options) {
- var offset = this._draggable._newPos.subtract(this._draggable._startPos);
+ this._url = url;
- 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); }
+ options = setOptions(this, options);
- this._draggable._newPos = this._draggable._startPos.add(offset);
- },
+ // detecting retina displays, adjusting tileSize and zoom levels
+ if (options.detectRetina && retina && options.maxZoom > 0) {
- _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;
+ options.tileSize = Math.floor(options.tileSize / 2);
- this._draggable._absPos = this._draggable._newPos.clone();
- this._draggable._newPos.x = newX;
- },
+ if (!options.zoomReverse) {
+ options.zoomOffset++;
+ options.maxZoom--;
+ } else {
+ options.zoomOffset--;
+ options.minZoom++;
+ }
- _onDragEnd: function (e) {
- var map = this._map,
- options = map.options,
+ options.minZoom = Math.max(0, options.minZoom);
+ }
- noInertia = !options.inertia || this._times.length < 2;
+ if (typeof options.subdomains === 'string') {
+ options.subdomains = options.subdomains.split('');
+ }
- map.fire('dragend', e);
+ // for https://github.com/Leaflet/Leaflet/issues/137
+ if (!android) {
+ this.on('tileunload', this._onTileRemove);
+ }
+ },
- if (noInertia) {
- map.fire('moveend');
+ // @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;
- } else {
+ if (!noRedraw) {
+ this.redraw();
+ }
+ return this;
+ },
- var direction = this._lastPos.subtract(this._positions[0]),
- duration = (this._lastTime - this._times[0]) / 1000,
- ease = options.easeLinearity,
+ // @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');
- speedVector = direction.multiplyBy(ease / duration),
- speed = speedVector.distanceTo([0, 0]),
+ on(tile, 'load', bind(this._tileOnLoad, this, done, tile));
+ on(tile, 'error', bind(this._tileOnError, this, done, tile));
- limitedSpeed = Math.min(options.inertiaMaxSpeed, speed),
- limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed),
+ if (this.options.crossOrigin || this.options.crossOrigin === '') {
+ tile.crossOrigin = this.options.crossOrigin === true ? '' : this.options.crossOrigin;
+ }
- decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease),
- offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round();
+ /*
+ 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 = '';
- if (!offset.x && !offset.y) {
- map.fire('moveend');
+ /*
+ Set role="presentation" to force screen readers to ignore this
+ https://www.w3.org/TR/wai-aria/roles#textalternativecomputation
+ */
+ tile.setAttribute('role', 'presentation');
- } else {
- offset = map._limitOffset(offset, map.options.maxBounds);
+ tile.src = this.getTileUrl(coords);
- L.Util.requestAnimFrame(function () {
- map.panBy(offset, {
- duration: decelerationDuration,
- easeLinearity: ease,
- noMoveStart: true,
- animate: true
- });
- });
+ return tile;
+ },
+
+ // @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;
}
- }
-});
-// @section Handlers
-// @property dragging: Handler
-// Map dragging handler (by both mouse and touch).
-L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag);
+ return template(this._url, extend(data, this.options));
+ },
+ _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);
+ }
+ },
+ _tileOnError: function (done, tile, e) {
+ var errorUrl = this.options.errorTileUrl;
+ if (errorUrl && tile.getAttribute('src') !== errorUrl) {
+ tile.src = errorUrl;
+ }
+ done(e, tile);
+ },
-/*
- * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default.
- */
+ _onTileRemove: function (e) {
+ e.tile.onload = null;
+ },
-// @namespace Map
-// @section Interaction Options
+ _getZoomForUrl: function () {
+ var zoom = this._tileZoom,
+ maxZoom = this.options.maxZoom,
+ zoomReverse = this.options.zoomReverse,
+ zoomOffset = this.options.zoomOffset;
-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
-});
+ if (zoomReverse) {
+ zoom = maxZoom - zoom;
+ }
-L.Map.DoubleClickZoom = L.Handler.extend({
- addHooks: function () {
- this._map.on('dblclick', this._onDoubleClick, this);
+ return zoom + zoomOffset;
},
- removeHooks: function () {
- this._map.off('dblclick', this._onDoubleClick, this);
+ _getSubdomain: function (tilePoint) {
+ var index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length;
+ return this.options.subdomains[index];
},
- _onDoubleClick: function (e) {
- var map = this._map,
- oldZoom = map.getZoom(),
- delta = map.options.zoomDelta,
- zoom = e.originalEvent.shiftKey ? oldZoom - delta : oldZoom + delta;
+ // 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;
- if (map.options.doubleClickZoom === 'center') {
- map.setZoom(zoom);
- } else {
- map.setZoomAround(e.containerPoint, zoom);
+ tile.onload = falseFn;
+ tile.onerror = falseFn;
+
+ if (!tile.complete) {
+ tile.src = emptyImageUrl;
+ remove(tile);
+ delete this._tiles[i];
+ }
+ }
+ }
+ },
+
+ _removeTile: function (key) {
+ var tile = this._tiles[key];
+ if (!tile) { return; }
+
+ // 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);
+ }
+
+ return GridLayer.prototype._removeTile.call(this, key);
+ },
+
+ _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({
- _touchstart: L.Browser.msPointer ? 'MSPointerDown' : L.Browser.pointer ? 'pointerdown' : 'touchstart',
- _touchend: L.Browser.msPointer ? 'MSPointerUp' : L.Browser.pointer ? 'pointerup' : 'touchend',
+ // @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,
+
+ // @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) {
- 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() {
- if (doubleTap && !touch.cancelBubble) {
- if (L.Browser.pointer) {
- // work around .type being readonly with MSPointer* events
- var newTouch = {},
- prop, i;
-
- for (i in touch) {
- prop = touch[i];
- newTouch[i] = prop && prop.bind ? prop.bind(touch) : prop;
- }
- touch = newTouch;
- }
- touch.type = 'dblclick';
- handler(touch);
- last = null;
- }
- }
+ _onAnimZoom: function (ev) {
+ this._updateTransform(ev.center, ev.zoom);
+ },
- var pre = '_leaflet_',
- touchstart = this._touchstart,
- touchend = this._touchend;
+ _onZoom: function () {
+ this._updateTransform(this._map.getCenter(), this._map.getZoom());
+ },
- obj[pre + touchstart + id] = onTouchStart;
- obj[pre + touchend + id] = onTouchEnd;
- obj[pre + 'dblclick' + id] = handler;
+ _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.addEventListener(touchstart, onTouchStart, false);
- obj.addEventListener(touchend, onTouchEnd, false);
+ topLeftOffset = viewHalf.multiplyBy(-scale).add(position).add(viewHalf).subtract(centerOffset);
- // On some platforms (notably, chrome on win10 + touchscreen + mouse),
- // the browser doesn't fire touchend/pointerup events but does fire
- // native dblclicks. See #4127.
- if (!L.Browser.edge) {
- obj.addEventListener('dblclick', handler, false);
+ if (any3d) {
+ setTransform(this._container, topLeftOffset, scale);
+ } else {
+ setPosition(this._container, topLeftOffset);
}
+ },
- return this;
+ _reset: function () {
+ this._update();
+ this._updateTransform(this._center, this._zoom);
+
+ 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', throttle(this._onMouseMove, 32, this), 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.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);
+ this._drawnLayers = {};
- obj['_leaflet_touchstart' + id] = onDown;
- obj.addEventListener(this.POINTER_DOWN, onDown, false);
+ Renderer.prototype._update.call(this);
+
+ 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);
- _globalPointerMove: function (e) {
- if (this._pointers[e.pointerId]) {
- this._pointers[e.pointerId] = e;
- }
+ // Tell paths to redraw themselves
+ this.fire('update');
},
- _globalPointerUp: function (e) {
- delete this._pointers[e.pointerId];
- this._pointersCount--;
- },
+ _reset: function () {
+ Renderer.prototype._reset.call(this);
- _handlePointer: function (e, handler) {
- e.touches = [];
- for (var i in this._pointers) {
- e.touches.push(this._pointers[i]);
+ if (this._postponeUpdatePaths) {
+ this._postponeUpdatePaths = false;
+ this._updatePaths();
}
- e.changedTouches = [e];
-
- handler(e);
},
- _addPointerMove: function (obj, handler, id) {
- var onMove = L.bind(function (e) {
- // don't fire touch moves when mouse isn't down
- if ((e.pointerType === e.MSPOINTER_TYPE_MOUSE || e.pointerType === 'mouse') && e.buttons === 0) { return; }
-
- this._handlePointer(e, handler);
- }, this);
+ _initPath: function (layer) {
+ this._updateDashArray(layer);
+ this._layers[stamp(layer)] = layer;
- obj['_leaflet_touchmove' + id] = onMove;
- obj.addEventListener(this.POINTER_MOVE, onMove, false);
+ 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;
},
- _addPointerEnd: function (obj, handler, id) {
- var onUp = L.bind(function (e) {
- this._handlePointer(e, handler);
- }, this);
-
- obj['_leaflet_touchend' + id] = onUp;
- obj.addEventListener(this.POINTER_UP, onUp, false);
- obj.addEventListener(this.POINTER_CANCEL, onUp, false);
- }
-});
+ _addPath: function (layer) {
+ this._requestRedraw(layer);
+ },
+ _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;
+ }
-/*
- * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers.
- */
+ delete this._drawnLayers[layer._leaflet_id];
-// @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,
+ delete layer._order;
- // @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
-});
+ delete this._layers[stamp(layer)];
-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._requestRedraw(layer);
},
- removeHooks: function () {
- L.DomUtil.removeClass(this._map._container, 'leaflet-touch-zoom');
- L.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this);
+ _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);
},
- _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]);
+ _updateStyle: function (layer) {
+ this._updateDashArray(layer);
+ this._requestRedraw(layer);
+ },
- 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));
+ _updateDashArray: function (layer) {
+ if (typeof layer.options.dashArray === 'string') {
+ var parts = layer.options.dashArray.split(/[, ]+/),
+ dashArray = [],
+ i;
+ for (i = 0; i < parts.length; i++) {
+ dashArray.push(Number(parts[i]));
+ }
+ layer.options._dashArray = dashArray;
+ } else {
+ layer.options._dashArray = layer.options.dashArray;
}
+ },
- this._startDist = p1.distanceTo(p2);
- this._startZoom = map.getZoom();
-
- this._moved = false;
- this._zooming = true;
-
- map._stop();
-
- L.DomEvent
- .on(document, 'touchmove', this._onTouchMove, this)
- .on(document, 'touchend', this._onTouchEnd, this);
+ _requestRedraw: function (layer) {
+ if (!this._map) { return; }
- L.DomEvent.preventDefault(e);
+ this._extendRedrawBounds(layer);
+ this._redrawRequest = this._redrawRequest || requestAnimFrame(this._redraw, this);
},
- _onTouchMove: function (e) {
- if (!e.touches || e.touches.length !== 2 || !this._zooming) { return; }
+ _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]));
+ }
+ },
- var map = this._map,
- p1 = map.mouseEventToContainerPoint(e.touches[0]),
- p2 = map.mouseEventToContainerPoint(e.touches[1]),
- scale = p1.distanceTo(p2) / this._startDist;
+ _redraw: function () {
+ this._redrawRequest = null;
+ if (this._redrawBounds) {
+ this._redrawBounds.min._floor();
+ this._redrawBounds.max._ceil();
+ }
- this._zoom = map.getScaleZoom(scale, this._startZoom);
+ this._clear(); // clear layers in redraw bounds
+ this._draw(); // draw layers
- if (!map.options.bounceAtZoomLimits && (
- (this._zoom < map.getMinZoom() && scale < 1) ||
- (this._zoom > map.getMaxZoom() && scale > 1))) {
- this._zoom = map._limitZoom(this._zoom);
- }
+ this._redrawBounds = null;
+ },
- if (map.options.touchZoom === 'center') {
- this._center = this._startLatLng;
- if (scale === 1) { return; }
+ _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 {
- // 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._ctx.clearRect(0, 0, this._container.width, this._container.height);
}
+ },
- if (!this._moved) {
- map._moveStart(true);
- this._moved = true;
+ _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();
}
- L.Util.cancelAnimFrame(this._animRequest);
-
- var moveFn = L.bind(map._move, map, this._center, this._zoom, {pinch: true, round: false});
- this._animRequest = L.Util.requestAnimFrame(moveFn, this, true);
-
- L.DomEvent.preventDefault(e);
- },
+ this._drawing = true;
- _onTouchEnd: function () {
- if (!this._moved || !this._zooming) {
- this._zooming = false;
- return;
+ for (var order = this._drawFirst; order; order = order.next) {
+ layer = order.layer;
+ if (!bounds || (layer._pxBounds && layer._pxBounds.intersects(bounds))) {
+ layer._updatePath();
+ }
}
- this._zooming = false;
- L.Util.cancelAnimFrame(this._animRequest);
+ this._drawing = false;
- L.DomEvent
- .off(document, 'touchmove', this._onTouchMove)
- .off(document, 'touchend', this._onTouchEnd);
+ this._ctx.restore(); // Restore state before clipping.
+ },
- // 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));
- }
- }
-});
+ _updatePoly: function (layer, closed) {
+ if (!this._drawing) { return; }
-// @section Handlers
-// @property touchZoom: Handler
-// Touch zoom handler.
-L.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom);
+ var i, j, len2, p,
+ parts = layer._parts,
+ len = parts.length,
+ ctx = this._ctx;
+ if (!len) { return; }
+ this._drawnLayers[layer._leaflet_id] = layer;
-/*
- * L.Map.Tap is used to enable mobile hacks like quick taps and long hold.
- */
+ ctx.beginPath();
-// @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,
+ 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 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
-});
+ this._fillStroke(ctx, layer);
-L.Map.Tap = L.Handler.extend({
- addHooks: function () {
- L.DomEvent.on(this._map._container, 'touchstart', this._onDown, this);
+ // TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature
},
- removeHooks: function () {
- L.DomEvent.off(this._map._container, 'touchstart', this._onDown, this);
- },
+ _updateCircle: function (layer) {
- _onDown: function (e) {
- if (!e.touches) { return; }
+ 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;
- this._fireClick = true;
+ this._drawnLayers[layer._leaflet_id] = layer;
- // don't simulate click or track longpress if more than 1 touch
- if (e.touches.length > 1) {
- this._fireClick = false;
- clearTimeout(this._holdTimeout);
- return;
+ if (s !== 1) {
+ ctx.save();
+ ctx.scale(1, s);
}
- var first = e.touches[0],
- el = first.target;
+ ctx.beginPath();
+ ctx.arc(p.x, p.y / s, r, 0, Math.PI * 2, false);
+
+ if (s !== 1) {
+ ctx.restore();
+ }
- this._startPos = this._newPos = new L.Point(first.clientX, first.clientY);
+ this._fillStroke(ctx, layer);
+ },
- // if touching a link, highlight it
- if (el.tagName && el.tagName.toLowerCase() === 'a') {
- L.DomUtil.addClass(el, 'leaflet-active');
+ _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');
}
- // 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 (options.stroke && options.weight !== 0) {
+ if (ctx.setLineDash) {
+ ctx.setLineDash(layer.options && layer.options._dashArray || []);
}
- }, this), 1000);
+ ctx.globalAlpha = options.opacity;
+ ctx.lineWidth = options.weight;
+ ctx.strokeStyle = options.color;
+ ctx.lineCap = options.lineCap;
+ ctx.lineJoin = options.lineJoin;
+ ctx.stroke();
+ }
+ },
- this._simulateEvent('mousedown', first);
+ // 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
- L.DomEvent.on(document, {
- touchmove: this._onMove,
- touchend: this._onUp
- }, this);
+ _onClick: function (e) {
+ var point = this._map.mouseEventToLayerPoint(e), layer, clickedLayer;
+
+ 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);
+ }
},
- _onUp: function (e) {
- clearTimeout(this._holdTimeout);
+ _onMouseMove: function (e) {
+ if (!this._map || this._map.dragging.moving() || this._map._animatingZoom) { return; }
- L.DomEvent.off(document, {
- touchmove: this._onMove,
- touchend: this._onUp
- }, this);
+ var point = this._map.mouseEventToLayerPoint(e);
+ this._handleMouseHover(e, point);
+ },
- if (this._fireClick && e && e.changedTouches) {
- var first = e.changedTouches[0],
- el = first.target;
+ _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;
+ }
+ },
- if (el && el.tagName && el.tagName.toLowerCase() === 'a') {
- L.DomUtil.removeClass(el, 'leaflet-active');
+ _handleMouseHover: function (e, point) {
+ var layer, candidateHoveredLayer;
+
+ for (var order = this._drawFirst; order; order = order.next) {
+ layer = order.layer;
+ if (layer.options.interactive && layer._containsPoint(point)) {
+ candidateHoveredLayer = layer;
}
+ }
- this._simulateEvent('mouseup', first);
+ if (candidateHoveredLayer !== this._hoveredLayer) {
+ this._handleMouseOut(e);
- // simulate click if the touch didn't move too much
- if (this._isTapValid()) {
- this._simulateEvent('click', first);
+ if (candidateHoveredLayer) {
+ addClass(this._container, 'leaflet-interactive'); // change cursor
+ this._fireEvent([candidateHoveredLayer], e, 'mouseover');
+ this._hoveredLayer = candidateHoveredLayer;
}
}
+
+ if (this._hoveredLayer) {
+ this._fireEvent([this._hoveredLayer], e);
+ }
},
- _isTapValid: function () {
- return this._newPos.distanceTo(this._startPos) <= this._map.options.tapTolerance;
+ _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;
+
+ 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;
+ }
+
+ order.prev = this._drawLast;
+ this._drawLast.next = order;
+
+ order.next = null;
+ this._drawLast = order;
+
+ this._requestRedraw(layer);
},
- _onMove: function (e) {
- var first = e.touches[0];
- this._newPos = new L.Point(first.clientX, first.clientY);
- this._simulateEvent('mousemove', first);
- },
+ _bringToBack: function (layer) {
+ var order = layer._order;
+ var next = order.next;
+ var prev = order.prev;
- _simulateEvent: function (type, e) {
- var simulatedEvent = document.createEvent('MouseEvents');
+ 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._simulated = true;
- e.target._simulatedClick = true;
+ order.prev = null;
- simulatedEvent.initMouseEvent(
- type, true, true, window, 1,
- e.screenX, e.screenY,
- e.clientX, e.clientY,
- false, false, false, false, 0, null);
+ order.next = this._drawFirst;
+ this._drawFirst.prev = order;
+ this._drawFirst = order;
- e.target.dispatchEvent(simulatedEvent);
+ 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
+ *
+ * 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.
*/
-// @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);
- function createCorner(vSide, hSide) {
- var className = l + vSide + ' ' + l + hSide;
+// @namespace Map
+// @section Interaction Options
- corners[vSide + hSide] = L.DomUtil.create('div', className, container);
- }
+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
+});
- createCorner('top', 'left');
- createCorner('top', 'right');
- createCorner('bottom', 'left');
- createCorner('bottom', 'right');
+var DoubleClickZoom = Handler.extend({
+ addHooks: function () {
+ this._map.on('dblclick', this._onDoubleClick, this);
},
- _clearControlPos: function () {
- L.DomUtil.remove(this._controlContainer);
+ removeHooks: function () {
+ this._map.off('dblclick', this._onDoubleClick, this);
+ },
+
+ _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;
+ }
+});
+
+// @section Handlers
+// @property scrollWheelZoom: Handler
+// Scroll wheel zoom handler.
+Map.addInitHook('addHandler', 'scrollWheelZoom', ScrollWheelZoom);
+
+/*
+ * L.Map.Tap is used to enable mobile hacks like quick taps and long hold.
+ */
+
+// @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,
+
+ // @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
+});
+
+var Tap = Handler.extend({
+ addHooks: function () {
+ on(this._map._container, 'touchstart', this._onDown, this);
},
- // @method collapse(): this
- // Collapse the control container if expanded.
- collapse: function () {
- L.DomUtil.removeClass(this._container, 'leaflet-control-layers-expanded');
- return this;
+ removeHooks: function () {
+ off(this._map._container, 'touchstart', this._onDown, this);
},
- _initLayout: function () {
- var className = 'leaflet-control-layers',
- container = this._container = L.DomUtil.create('div', className);
+ _onDown: function (e) {
+ if (!e.touches) { return; }
- // 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);
+ preventDefault(e);
- L.DomEvent.disableClickPropagation(container);
- if (!L.Browser.touch) {
- L.DomEvent.disableScrollPropagation(container);
+ this._fireClick = true;
+
+ // don't simulate click or track longpress if more than 1 touch
+ if (e.touches.length > 1) {
+ this._fireClick = false;
+ clearTimeout(this._holdTimeout);
+ return;
}
- var form = this._form = L.DomUtil.create('form', className + '-list');
+ var first = e.touches[0],
+ el = first.target;
+
+ this._startPos = this._newPos = new Point(first.clientX, first.clientY);
- if (!L.Browser.android) {
- L.DomEvent.on(container, {
- mouseenter: this.expand,
- mouseleave: this.collapse
- }, this);
+ // if touching a link, highlight it
+ if (el.tagName && el.tagName.toLowerCase() === 'a') {
+ addClass(el, 'leaflet-active');
}
- var link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container);
- link.href = '#';
- link.title = 'Layers';
+ // 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);
- 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);
- }
+ this._simulateEvent('mousedown', first);
- // 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);
+ on(document, {
+ touchmove: this._onMove,
+ touchend: this._onUp
}, this);
+ },
- this._map.on('click', this.collapse, this);
- // TODO keyboard accessibility
-
- if (!this.options.collapsed) {
- this.expand();
- }
+ _onUp: function (e) {
+ clearTimeout(this._holdTimeout);
- 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);
+ off(document, {
+ touchmove: this._onMove,
+ touchend: this._onUp
+ }, this);
- container.appendChild(form);
- },
+ if (this._fireClick && e && e.changedTouches) {
- _getLayer: function (id) {
- for (var i = 0; i < this._layers.length; i++) {
+ var first = e.changedTouches[0],
+ el = first.target;
- if (this._layers[i] && L.stamp(this._layers[i].layer) === id) {
- return this._layers[i];
+ if (el && el.tagName && el.tagName.toLowerCase() === 'a') {
+ removeClass(el, 'leaflet-active');
}
- }
- },
-
- _addLayer: function (layer, name, overlay) {
- layer.on('add remove', this._onLayerChange, this);
-
- this._layers.push({
- layer: layer,
- name: name,
- overlay: overlay
- });
- 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));
- }
+ this._simulateEvent('mouseup', first);
- if (this.options.autoZIndex && layer.setZIndex) {
- this._lastZIndex++;
- layer.setZIndex(this._lastZIndex);
+ // simulate click if the touch didn't move too much
+ if (this._isTapValid()) {
+ this._simulateEvent('click', first);
+ }
}
},
- _update: function () {
- if (!this._container) { return this; }
+ _isTapValid: function () {
+ return this._newPos.distanceTo(this._startPos) <= this._map.options.tapTolerance;
+ },
- L.DomUtil.empty(this._baseLayersList);
- L.DomUtil.empty(this._overlaysList);
+ _onMove: function (e) {
+ var first = e.touches[0];
+ this._newPos = new Point(first.clientX, first.clientY);
+ this._simulateEvent('mousemove', first);
+ },
- var baseLayersPresent, overlaysPresent, i, obj, baseLayersCount = 0;
+ _simulateEvent: function (type, e) {
+ var simulatedEvent = document.createEvent('MouseEvents');
- 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;
- }
+ simulatedEvent._simulated = true;
+ e.target._simulatedClick = true;
- // Hide base layers section if there's only one layer.
- if (this.options.hideSingleBase) {
- baseLayersPresent = baseLayersPresent && baseLayersCount > 1;
- this._baseLayersList.style.display = baseLayersPresent ? '' : 'none';
- }
+ simulatedEvent.initMouseEvent(
+ type, true, true, window, 1,
+ e.screenX, e.screenY,
+ e.clientX, e.clientY,
+ false, false, false, false, 0, null);
- this._separator.style.display = overlaysPresent && baseLayersPresent ? '' : 'none';
+ e.target.dispatchEvent(simulatedEvent);
+ }
+});
- return this;
- },
+// @section Handlers
+// @property tap: Handler
+// Mobile touch hacks (quick tap and touch hold) handler.
+if (touch && !pointer) {
+ Map.addInitHook('addHandler', 'tap', Tap);
+}
- _onLayerChange: function (e) {
- if (!this._handlingClick) {
- this._update();
- }
+/*
+ * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers.
+ */
- var obj = this._getLayer(L.stamp(e.target));
+// @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,
- // @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);
+ // @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
+});
- if (type) {
- this._map.fire(type, obj);
- }
+var TouchZoom = Handler.extend({
+ addHooks: function () {
+ addClass(this._map._container, 'leaflet-touch-zoom');
+ on(this._map._container, 'touchstart', this._onTouchStart, this);
},
- // IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe)
- _createRadioElement: function (name, checked) {
-
- var radioHtml = '<input type="radio" class="leaflet-control-layers-selector" name="' +
- name + '"' + (checked ? ' checked="checked"' : '') + '/>';
-
- var radioFragment = document.createElement('div');
- radioFragment.innerHTML = radioHtml;
-
- return radioFragment.firstChild;
+ removeHooks: function () {
+ removeClass(this._map._container, 'leaflet-touch-zoom');
+ off(this._map._container, 'touchstart', this._onTouchStart, this);
},
- _addItem: function (obj) {
- var label = document.createElement('label'),
- checked = this._map.hasLayer(obj.layer),
- input;
-
- if (obj.overlay) {
- input = document.createElement('input');
- input.type = 'checkbox';
- input.className = 'leaflet-control-layers-selector';
- input.defaultChecked = checked;
- } else {
- input = this._createRadioElement('leaflet-base-layers', checked);
- }
+ _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.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