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Diffstat (limited to 'debian/missing-sources/leaflet.js/map/Map.js')
| -rw-r--r-- | debian/missing-sources/leaflet.js/map/Map.js | 1667 |
1 files changed, 1667 insertions, 0 deletions
diff --git a/debian/missing-sources/leaflet.js/map/Map.js b/debian/missing-sources/leaflet.js/map/Map.js new file mode 100644 index 0000000..b276d86 --- /dev/null +++ b/debian/missing-sources/leaflet.js/map/Map.js @@ -0,0 +1,1667 @@ +import * as Util from '../core/Util';
+import {Evented} from '../core/Events';
+import {EPSG3857} from '../geo/crs/CRS.EPSG3857';
+import {Point, toPoint} from '../geometry/Point';
+import {Bounds, toBounds} from '../geometry/Bounds';
+import {LatLng, toLatLng} from '../geo/LatLng';
+import {LatLngBounds, toLatLngBounds} from '../geo/LatLngBounds';
+import * as Browser from '../core/Browser';
+import * as DomEvent from '../dom/DomEvent';
+import * as DomUtil from '../dom/DomUtil';
+import {PosAnimation} from '../dom/PosAnimation';
+
+/*
+ * @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
+ * });
+ * ```
+ *
+ */
+
+export var Map = Evented.extend({
+
+ 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,
+
+ // @option center: LatLng = undefined
+ // Initial geographic center of the map
+ center: undefined,
+
+ // @option zoom: Number = undefined
+ // Initial map zoom level
+ zoom: undefined,
+
+ // @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,
+
+ // @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,
+
+ // @option layers: Layer[] = []
+ // Array of layers that will be added to the map initially
+ layers: [],
+
+ // @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,
+
+
+ // @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,
+
+ // @option zoomAnimationThreshold: Number = 4
+ // Won't animate zoom if the zoom difference exceeds this value.
+ zoomAnimationThreshold: 4,
+
+ // @option fadeAnimation: Boolean = true
+ // Whether the tile fade animation is enabled. By default it's enabled
+ // in all browsers that support CSS3 Transitions except Android.
+ fadeAnimation: true,
+
+ // @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,
+
+ // @option transform3DLimit: Number = 2^23
+ // Defines the maximum size of a CSS translation transform. The default
+ // value should not be changed unless a web browser positions layers in
+ // the wrong place after doing a large `panBy`.
+ transform3DLimit: 8388608, // Precision limit of a 32-bit float
+
+ // @section Interaction Options
+ // @option zoomSnap: Number = 1
+ // Forces the map's zoom level to always be a multiple of this, particularly
+ // right after a [`fitBounds()`](#map-fitbounds) or a pinch-zoom.
+ // By default, the zoom level snaps to the nearest integer; lower values
+ // (e.g. `0.5` or `0.1`) allow for greater granularity. A value of `0`
+ // means the zoom level will not be snapped after `fitBounds` or a pinch-zoom.
+ zoomSnap: 1,
+
+ // @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
+ },
+
+ initialize: function (id, options) { // (HTMLElement or String, Object)
+ options = Util.setOptions(this, options);
+
+ this._initContainer(id);
+ this._initLayout();
+
+ // hack for https://github.com/Leaflet/Leaflet/issues/1980
+ this._onResize = Util.bind(this._onResize, this);
+
+ this._initEvents();
+
+ if (options.maxBounds) {
+ this.setMaxBounds(options.maxBounds);
+ }
+
+ if (options.zoom !== undefined) {
+ this._zoom = this._limitZoom(options.zoom);
+ }
+
+ if (options.center && options.zoom !== undefined) {
+ this.setView(toLatLng(options.center), options.zoom, {reset: true});
+ }
+
+ this._handlers = [];
+ this._layers = {};
+ this._zoomBoundLayers = {};
+ this._sizeChanged = true;
+
+ this.callInitHooks();
+
+ // don't animate on browsers without hardware-accelerated transitions or old Android/Opera
+ this._zoomAnimated = DomUtil.TRANSITION && Browser.any3d && !Browser.mobileOpera &&
+ this.options.zoomAnimation;
+
+ // 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();
+ DomEvent.on(this._proxy, DomUtil.TRANSITION_END, this._catchTransitionEnd, this);
+ }
+
+ this._addLayers(this.options.layers);
+ },
+
+
+ // @section Methods for modifying map state
+
+ // @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) {
+
+ zoom = zoom === undefined ? this._zoom : this._limitZoom(zoom);
+ center = this._limitCenter(toLatLng(center), zoom, this.options.maxBounds);
+ options = options || {};
+
+ this._stop();
+
+ if (this._loaded && !options.reset && options !== true) {
+
+ if (options.animate !== undefined) {
+ options.zoom = Util.extend({animate: options.animate}, options.zoom);
+ options.pan = Util.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 (moved) {
+ // prevent resize handler call, the view will refresh after animation anyway
+ clearTimeout(this._sizeTimer);
+ return this;
+ }
+ }
+
+ // animation didn't start, just reset the map view
+ this._resetView(center, zoom);
+
+ 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});
+ },
+
+ // @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 || (Browser.any3d ? this.options.zoomDelta : 1);
+ return this.setZoom(this._zoom + delta, options);
+ },
+
+ // @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 || (Browser.any3d ? this.options.zoomDelta : 1);
+ return this.setZoom(this._zoom - delta, options);
+ },
+
+ // @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),
+
+ centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale),
+ newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset));
+
+ return this.setView(newCenter, zoom, {zoom: options});
+ },
+
+ _getBoundsCenterZoom: function (bounds, options) {
+
+ options = options || {};
+ bounds = bounds.getBounds ? bounds.getBounds() : toLatLngBounds(bounds);
+
+ var paddingTL = toPoint(options.paddingTopLeft || options.padding || [0, 0]),
+ paddingBR = toPoint(options.paddingBottomRight || options.padding || [0, 0]),
+
+ zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR));
+
+ zoom = (typeof options.maxZoom === 'number') ? Math.min(options.maxZoom, zoom) : zoom;
+
+ if (zoom === Infinity) {
+ return {
+ center: bounds.getCenter(),
+ zoom: zoom
+ };
+ }
+
+ var paddingOffset = paddingBR.subtract(paddingTL).divideBy(2),
+
+ swPoint = this.project(bounds.getSouthWest(), zoom),
+ nePoint = this.project(bounds.getNorthEast(), zoom),
+ center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom);
+
+ return {
+ center: center,
+ zoom: zoom
+ };
+ },
+
+ // @method fitBounds(bounds: LatLngBounds, options?: fitBounds options): this
+ // Sets a map view that contains the given geographical bounds with the
+ // maximum zoom level possible.
+ fitBounds: function (bounds, options) {
+
+ bounds = toLatLngBounds(bounds);
+
+ if (!bounds.isValid()) {
+ throw new Error('Bounds are not valid.');
+ }
+
+ var target = this._getBoundsCenterZoom(bounds, options);
+ return this.setView(target.center, target.zoom, options);
+ },
+
+ // @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);
+ },
+
+ // @method panTo(latlng: LatLng, options?: Pan options): this
+ // Pans the map to a given center.
+ panTo: function (center, options) { // (LatLng)
+ return this.setView(center, this._zoom, {pan: options});
+ },
+
+ // @method panBy(offset: Point, options?: Pan options): this
+ // Pans the map by a given number of pixels (animated).
+ panBy: function (offset, options) {
+ offset = toPoint(offset).round();
+ options = options || {};
+
+ 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;
+ }
+
+ if (!this._panAnim) {
+ this._panAnim = new PosAnimation();
+
+ this._panAnim.on({
+ 'step': this._onPanTransitionStep,
+ 'end': this._onPanTransitionEnd
+ }, this);
+ }
+
+ // don't fire movestart if animating inertia
+ if (!options.noMoveStart) {
+ this.fire('movestart');
+ }
+
+ // animate pan unless animate: false specified
+ if (options.animate !== false) {
+ DomUtil.addClass(this._mapPane, 'leaflet-pan-anim');
+
+ 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;
+ },
+
+ // @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) {
+
+ options = options || {};
+ if (options.animate === false || !Browser.any3d) {
+ return this.setView(targetCenter, targetZoom, options);
+ }
+
+ this._stop();
+
+ var from = this.project(this.getCenter()),
+ to = this.project(targetCenter),
+ size = this.getSize(),
+ startZoom = this._zoom;
+
+ targetCenter = toLatLng(targetCenter);
+ targetZoom = targetZoom === undefined ? startZoom : targetZoom;
+
+ var w0 = Math.max(size.x, size.y),
+ w1 = w0 * this.getZoomScale(startZoom, targetZoom),
+ u1 = (to.distanceTo(from)) || 1,
+ rho = 1.42,
+ rho2 = rho * rho;
+
+ function 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;
+
+ // 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);
+
+ return log;
+ }
+
+ 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); }
+
+ 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; }
+
+ function easeOut(t) { return 1 - Math.pow(1 - t, 1.5); }
+
+ var start = Date.now(),
+ S = (r(1) - r0) / rho,
+ duration = options.duration ? 1000 * options.duration : 1000 * S * 0.8;
+
+ function frame() {
+ var t = (Date.now() - start) / duration,
+ s = easeOut(t) * S;
+
+ if (t <= 1) {
+ this._flyToFrame = 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});
+
+ } else {
+ this
+ ._move(targetCenter, targetZoom)
+ ._moveEnd(true);
+ }
+ }
+
+ this._moveStart(true, options.noMoveStart);
+
+ frame.call(this);
+ return this;
+ },
+
+ // @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);
+ },
+
+ // @method setMaxBounds(bounds: Bounds): this
+ // Restricts the map view to the given bounds (see the [maxBounds](#map-maxbounds) option).
+ setMaxBounds: function (bounds) {
+ bounds = toLatLngBounds(bounds);
+
+ if (!bounds.isValid()) {
+ this.options.maxBounds = null;
+ return this.off('moveend', this._panInsideMaxBounds);
+ } else if (this.options.maxBounds) {
+ this.off('moveend', this._panInsideMaxBounds);
+ }
+
+ this.options.maxBounds = bounds;
+
+ if (this._loaded) {
+ this._panInsideMaxBounds();
+ }
+
+ return this.on('moveend', this._panInsideMaxBounds);
+ },
+
+ // @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;
+
+ if (this._loaded && oldZoom !== zoom) {
+ this.fire('zoomlevelschange');
+
+ if (this.getZoom() < this.options.minZoom) {
+ return this.setZoom(zoom);
+ }
+ }
+
+ return this;
+ },
+
+ // @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;
+
+ if (this._loaded && oldZoom !== zoom) {
+ this.fire('zoomlevelschange');
+
+ if (this.getZoom() > this.options.maxZoom) {
+ return this.setZoom(zoom);
+ }
+ }
+
+ return this;
+ },
+
+ // @method panInsideBounds(bounds: LatLngBounds, options?: Pan options): this
+ // Pans the map to the closest view that would lie inside the given bounds (if it's not already), controlling the animation using the options specific, if any.
+ panInsideBounds: function (bounds, options) {
+ this._enforcingBounds = true;
+ var center = this.getCenter(),
+ newCenter = this._limitCenter(center, this._zoom, toLatLngBounds(bounds));
+
+ if (!center.equals(newCenter)) {
+ this.panTo(newCenter, options);
+ }
+
+ this._enforcingBounds = false;
+ return 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.
+
+ // @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; }
+
+ options = Util.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; }
+
+ if (options.animate && options.pan) {
+ this.panBy(offset);
+
+ } else {
+ if (options.pan) {
+ this._rawPanBy(offset);
+ }
+
+ this.fire('move');
+
+ if (options.debounceMoveend) {
+ clearTimeout(this._sizeTimer);
+ this._sizeTimer = setTimeout(Util.bind(this.fire, this, 'moveend'), 200);
+ } else {
+ this.fire('moveend');
+ }
+ }
+
+ // @section Map state change events
+ // @event resize: ResizeEvent
+ // Fired when the map is resized.
+ return this.fire('resize', {
+ oldSize: oldSize,
+ newSize: newSize
+ });
+ },
+
+ // @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();
+ },
+
+ // @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) {
+
+ options = this._locateOptions = Util.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;
+ }
+
+ var onResponse = Util.bind(this._handleGeolocationResponse, this),
+ onError = Util.bind(this._handleGeolocationError, this);
+
+ if (options.watch) {
+ this._locationWatchId =
+ navigator.geolocation.watchPosition(onResponse, onError, options);
+ } else {
+ navigator.geolocation.getCurrentPosition(onResponse, onError, options);
+ }
+ return this;
+ },
+
+ // @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;
+ },
+
+ _handleGeolocationError: function (error) {
+ var c = error.code,
+ message = error.message ||
+ (c === 1 ? 'permission denied' :
+ (c === 2 ? 'position unavailable' : 'timeout'));
+
+ if (this._locateOptions.setView && !this._loaded) {
+ this.fitWorld();
+ }
+
+ // @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 + '.'
+ });
+ },
+
+ _handleGeolocationResponse: function (pos) {
+ var lat = pos.coords.latitude,
+ lng = pos.coords.longitude,
+ latlng = new LatLng(lat, lng),
+ bounds = latlng.toBounds(pos.coords.accuracy),
+ options = this._locateOptions;
+
+ if (options.setView) {
+ var zoom = this.getBoundsZoom(bounds);
+ this.setView(latlng, options.maxZoom ? Math.min(zoom, options.maxZoom) : zoom);
+ }
+
+ 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];
+ }
+ }
+
+ // @event locationfound: LocationEvent
+ // Fired when geolocation (using the [`locate`](#map-locate) method)
+ // went successfully.
+ this.fire('locationfound', data);
+ },
+
+ // 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; }
+
+ var handler = this[name] = new HandlerClass(this);
+
+ this._handlers.push(handler);
+
+ if (this.options[name]) {
+ handler.enable();
+ }
+
+ return this;
+ },
+
+ // @method remove(): this
+ // Destroys the map and clears all related event listeners.
+ remove: function () {
+
+ this._initEvents(true);
+
+ if (this._containerId !== this._container._leaflet_id) {
+ throw new Error('Map container is being reused by another instance');
+ }
+
+ try {
+ // throws error in IE6-8
+ delete this._container._leaflet_id;
+ delete this._containerId;
+ } catch (e) {
+ /*eslint-disable */
+ this._container._leaflet_id = undefined;
+ /* eslint-enable */
+ this._containerId = undefined;
+ }
+
+ if (this._locationWatchId !== undefined) {
+ this.stopLocate();
+ }
+
+ this._stop();
+
+ DomUtil.remove(this._mapPane);
+
+ if (this._clearControlPos) {
+ this._clearControlPos();
+ }
+
+ this._clearHandlers();
+
+ 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');
+ }
+
+ var i;
+ for (i in this._layers) {
+ this._layers[i].remove();
+ }
+ for (i in this._panes) {
+ DomUtil.remove(this._panes[i]);
+ }
+
+ this._layers = [];
+ this._panes = [];
+ delete this._mapPane;
+ delete this._renderer;
+
+ return this;
+ },
+
+ // @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 = DomUtil.create('div', className, container || this._mapPane);
+
+ if (name) {
+ this._panes[name] = pane;
+ }
+ return pane;
+ },
+
+ // @section Methods for Getting Map State
+
+ // @method getCenter(): LatLng
+ // Returns the geographical center of the map view
+ getCenter: function () {
+ this._checkIfLoaded();
+
+ if (this._lastCenter && !this._moved()) {
+ return this._lastCenter;
+ }
+ return this.layerPointToLatLng(this._getCenterLayerPoint());
+ },
+
+ // @method getZoom(): Number
+ // Returns the current zoom level of the map view
+ getZoom: function () {
+ return this._zoom;
+ },
+
+ // @method getBounds(): LatLngBounds
+ // Returns the geographical bounds visible in the current map view
+ getBounds: function () {
+ var bounds = this.getPixelBounds(),
+ sw = this.unproject(bounds.getBottomLeft()),
+ ne = this.unproject(bounds.getTopRight());
+
+ return new LatLngBounds(sw, ne);
+ },
+
+ // @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): 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 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 = Browser.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);
+
+ zoom = this.getScaleZoom(scale, zoom);
+
+ 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;
+ }
+
+ return Math.max(min, Math.min(max, zoom));
+ },
+
+ // @method getSize(): Point
+ // Returns the current size of the map container (in pixels).
+ getSize: function () {
+ if (!this._size || this._sizeChanged) {
+ this._size = new Point(
+ this._container.clientWidth || 0,
+ this._container.clientHeight || 0);
+
+ this._sizeChanged = false;
+ }
+ return this._size.clone();
+ },
+
+ // @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()));
+ },
+
+ // 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;
+ },
+
+ // @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);
+ },
+
+ // @section Other Methods
+
+ // @method getPane(pane: String|HTMLElement): HTMLElement
+ // Returns a [map pane](#map-pane), given its name or its HTML element (its identity).
+ getPane: function (pane) {
+ return typeof pane === 'string' ? this._panes[pane] : pane;
+ },
+
+ // @method 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;
+ },
+
+ // @method getContainer: HTMLElement
+ // Returns the HTML element that contains the map.
+ getContainer: function () {
+ return this._container;
+ },
+
+
+ // @section Conversion Methods
+
+ // @method getZoomScale(toZoom: Number, fromZoom: Number): Number
+ // Returns the scale factor to be applied to a map transition from zoom level
+ // `fromZoom` to `toZoom`. Used internally to help with zoom animations.
+ getZoomScale: function (toZoom, fromZoom) {
+ // TODO replace with universal implementation after refactoring projections
+ var crs = this.options.crs;
+ fromZoom = fromZoom === undefined ? this._zoom : fromZoom;
+ return crs.scale(toZoom) / crs.scale(fromZoom);
+ },
+
+ // @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;
+ },
+
+ // @method project(latlng: LatLng, zoom: Number): Point
+ // Projects a geographical coordinate `LatLng` according to the projection
+ // of the map's CRS, then scales it according to `zoom` and the CRS's
+ // `Transformation`. The result is pixel coordinate relative to
+ // the CRS origin.
+ project: function (latlng, zoom) {
+ zoom = zoom === undefined ? this._zoom : zoom;
+ return this.options.crs.latLngToPoint(toLatLng(latlng), zoom);
+ },
+
+ // @method unproject(point: Point, zoom: Number): LatLng
+ // Inverse of [`project`](#map-project).
+ unproject: function (point, zoom) {
+ zoom = zoom === undefined ? this._zoom : zoom;
+ return this.options.crs.pointToLatLng(toPoint(point), zoom);
+ },
+
+ // @method 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);
+ },
+
+ // @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());
+ },
+
+ // @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));
+ },
+
+ // @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));
+ },
+
+ // @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));
+ },
+
+ // @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());
+ },
+
+ // @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());
+ },
+
+ // @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);
+ },
+
+ // @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)));
+ },
+
+ // @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 DomEvent.getMousePosition(e, this._container);
+ },
+
+ // @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));
+ },
+
+ // @method mouseEventToLatLng(ev: MouseEvent): LatLng
+ // Given a MouseEvent object, returns geographical coordinate where the
+ // event took place.
+ mouseEventToLatLng: function (e) { // (MouseEvent)
+ return this.layerPointToLatLng(this.mouseEventToLayerPoint(e));
+ },
+
+
+ // map initialization methods
+
+ _initContainer: function (id) {
+ var container = this._container = DomUtil.get(id);
+
+ if (!container) {
+ throw new Error('Map container not found.');
+ } else if (container._leaflet_id) {
+ throw new Error('Map container is already initialized.');
+ }
+
+ DomEvent.on(container, 'scroll', this._onScroll, this);
+ this._containerId = Util.stamp(container);
+ },
+
+ _initLayout: function () {
+ var container = this._container;
+
+ this._fadeAnimated = this.options.fadeAnimation && Browser.any3d;
+
+ DomUtil.addClass(container, 'leaflet-container' +
+ (Browser.touch ? ' leaflet-touch' : '') +
+ (Browser.retina ? ' leaflet-retina' : '') +
+ (Browser.ielt9 ? ' leaflet-oldie' : '') +
+ (Browser.safari ? ' leaflet-safari' : '') +
+ (this._fadeAnimated ? ' leaflet-fade-anim' : ''));
+
+ var position = DomUtil.getStyle(container, 'position');
+
+ if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') {
+ container.style.position = 'relative';
+ }
+
+ this._initPanes();
+
+ if (this._initControlPos) {
+ this._initControlPos();
+ }
+ },
+
+ _initPanes: function () {
+ var panes = this._panes = {};
+ this._paneRenderers = {};
+
+ // @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
+
+ this._mapPane = this.createPane('mapPane', this._container);
+ DomUtil.setPosition(this._mapPane, new Point(0, 0));
+
+ // @pane tilePane: HTMLElement = 200
+ // Pane for `GridLayer`s and `TileLayer`s
+ this.createPane('tilePane');
+ // @pane overlayPane: HTMLElement = 400
+ // Pane for vectors (`Path`s, like `Polyline`s and `Polygon`s), `ImageOverlay`s and `VideoOverlay`s
+ this.createPane('shadowPane');
+ // @pane shadowPane: HTMLElement = 500
+ // Pane for overlay shadows (e.g. `Marker` shadows)
+ this.createPane('overlayPane');
+ // @pane markerPane: HTMLElement = 600
+ // Pane for `Icon`s of `Marker`s
+ this.createPane('markerPane');
+ // @pane tooltipPane: HTMLElement = 650
+ // Pane for `Tooltip`s.
+ this.createPane('tooltipPane');
+ // @pane popupPane: HTMLElement = 700
+ // Pane for `Popup`s.
+ this.createPane('popupPane');
+
+ if (!this.options.markerZoomAnimation) {
+ DomUtil.addClass(panes.markerPane, 'leaflet-zoom-hide');
+ DomUtil.addClass(panes.shadowPane, 'leaflet-zoom-hide');
+ }
+ },
+
+
+ // private methods that modify map state
+
+ // @section Map state change events
+ _resetView: function (center, zoom) {
+ DomUtil.setPosition(this._mapPane, new Point(0, 0));
+
+ var loading = !this._loaded;
+ this._loaded = true;
+ zoom = this._limitZoom(zoom);
+
+ 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');
+
+ // @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');
+ }
+ },
+
+ _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;
+ },
+
+ _move: function (center, zoom, data) {
+ if (zoom === undefined) {
+ zoom = this._zoom;
+ }
+ var zoomChanged = this._zoom !== zoom;
+
+ this._zoom = zoom;
+ this._lastCenter = center;
+ this._pixelOrigin = this._getNewPixelOrigin(center);
+
+ // @event zoom: Event
+ // Fired repeatedly during any change in zoom level, including zoom
+ // and fly animations.
+ if (zoomChanged || (data && data.pinch)) { // Always fire 'zoom' if pinching because #3530
+ this.fire('zoom', data);
+ }
+
+ // @event move: Event
+ // Fired repeatedly during any movement of the map, including pan and
+ // fly animations.
+ return this.fire('move', data);
+ },
+
+ _moveEnd: function (zoomChanged) {
+ // @event zoomend: Event
+ // Fired when the map has changed, after any animations.
+ if (zoomChanged) {
+ this.fire('zoomend');
+ }
+
+ // @event moveend: Event
+ // Fired when the center of the map stops changing (e.g. user stopped
+ // dragging the map).
+ return this.fire('moveend');
+ },
+
+ _stop: function () {
+ Util.cancelAnimFrame(this._flyToFrame);
+ if (this._panAnim) {
+ this._panAnim.stop();
+ }
+ return this;
+ },
+
+ _rawPanBy: function (offset) {
+ DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset));
+ },
+
+ _getZoomSpan: function () {
+ return this.getMaxZoom() - this.getMinZoom();
+ },
+
+ _panInsideMaxBounds: function () {
+ if (!this._enforcingBounds) {
+ this.panInsideBounds(this.options.maxBounds);
+ }
+ },
+
+ _checkIfLoaded: function () {
+ if (!this._loaded) {
+ throw new Error('Set map center and zoom first.');
+ }
+ },
+
+ // DOM event handling
+
+ // @section Interaction events
+ _initEvents: function (remove) {
+ this._targets = {};
+ this._targets[Util.stamp(this._container)] = this;
+
+ var onOff = remove ? DomEvent.off : DomEvent.on;
+
+ // @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);
+
+ if (this.options.trackResize) {
+ onOff(window, 'resize', this._onResize, this);
+ }
+
+ if (Browser.any3d && this.options.transform3DLimit) {
+ (remove ? this.off : this.on).call(this, 'moveend', this._onMoveEnd);
+ }
+ },
+
+ _onResize: function () {
+ Util.cancelAnimFrame(this._resizeRequest);
+ this._resizeRequest = Util.requestAnimFrame(
+ function () { this.invalidateSize({debounceMoveend: true}); }, this);
+ },
+
+ _onScroll: function () {
+ this._container.scrollTop = 0;
+ this._container.scrollLeft = 0;
+ },
+
+ _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());
+ }
+ },
+
+ _findEventTargets: function (e, type) {
+ var targets = [],
+ target,
+ isHover = type === 'mouseout' || type === 'mouseover',
+ src = e.target || e.srcElement,
+ dragging = false;
+
+ while (src) {
+ target = this._targets[Util.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 && !DomEvent.isExternalTarget(src, e)) { break; }
+ targets.push(target);
+ if (isHover) { break; }
+ }
+ if (src === this._container) { break; }
+ src = src.parentNode;
+ }
+ if (!targets.length && !dragging && !isHover && DomEvent.isExternalTarget(src, e)) {
+ targets = [this];
+ }
+ return targets;
+ },
+
+ _handleDOMEvent: function (e) {
+ if (!this._loaded || DomEvent.skipped(e)) { return; }
+
+ var type = e.type;
+
+ if (type === 'mousedown' || type === 'keypress') {
+ // prevents outline when clicking on keyboard-focusable element
+ DomUtil.preventOutline(e.target || e.srcElement);
+ }
+
+ this._fireDOMEvent(e, type);
+ },
+
+ _mouseEvents: ['click', 'dblclick', 'mouseover', 'mouseout', 'contextmenu'],
+
+ _fireDOMEvent: function (e, type, targets) {
+
+ 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 = Util.extend({}, e);
+ synth.type = 'preclick';
+ this._fireDOMEvent(synth, synth.type, targets);
+ }
+
+ if (e._stopped) { return; }
+
+ // Find the layer the event is propagating from and its parents.
+ targets = (targets || []).concat(this._findEventTargets(e, type));
+
+ if (!targets.length) { return; }
+
+ var target = targets[0];
+ if (type === 'contextmenu' && target.listens(type, true)) {
+ DomEvent.preventDefault(e);
+ }
+
+ var data = {
+ originalEvent: e
+ };
+
+ 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);
+ }
+
+ for (var i = 0; i < targets.length; i++) {
+ targets[i].fire(type, data, true);
+ if (data.originalEvent._stopped ||
+ (targets[i].options.bubblingMouseEvents === false && Util.indexOf(this._mouseEvents, type) !== -1)) { return; }
+ }
+ },
+
+ _draggableMoved: function (obj) {
+ obj = obj.dragging && obj.dragging.enabled() ? obj : this;
+ return (obj.dragging && obj.dragging.moved()) || (this.boxZoom && this.boxZoom.moved());
+ },
+
+ _clearHandlers: function () {
+ for (var i = 0, len = this._handlers.length; i < len; i++) {
+ this._handlers[i].disable();
+ }
+ },
+
+ // @section Other Methods
+
+ // @method whenReady(fn: Function, context?: Object): this
+ // Runs the given function `fn` when the map gets initialized with
+ // a view (center and zoom) and at least one layer, or immediately
+ // if it's already initialized, optionally passing a function context.
+ whenReady: function (callback, context) {
+ if (this._loaded) {
+ callback.call(context || this, {target: this});
+ } else {
+ this.on('load', callback, context);
+ }
+ return this;
+ },
+
+
+ // private methods for getting map state
+
+ _getMapPanePos: function () {
+ return DomUtil.getPosition(this._mapPane) || new 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());
+ },
+
+ _getNewPixelOrigin: function (center, zoom) {
+ var viewHalf = this.getSize()._divideBy(2);
+ return this.project(center, zoom)._subtract(viewHalf)._add(this._getMapPanePos())._round();
+ },
+
+ _latLngToNewLayerPoint: function (latlng, zoom, center) {
+ var topLeft = this._getNewPixelOrigin(center, zoom);
+ return this.project(latlng, zoom)._subtract(topLeft);
+ },
+
+ _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)
+ ]);
+ },
+
+ // layer point of the current center
+ _getCenterLayerPoint: function () {
+ return this.containerPointToLayerPoint(this.getSize()._divideBy(2));
+ },
+
+ // offset of the specified place to the current center in pixels
+ _getCenterOffset: function (latlng) {
+ return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint());
+ },
+
+ // adjust center for view to get inside bounds
+ _limitCenter: function (center, zoom, bounds) {
+
+ 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.unproject(centerPoint.add(offset), zoom);
+ },
+
+ // adjust offset for view to get inside bounds
+ _limitOffset: function (offset, bounds) {
+ if (!bounds) { return offset; }
+
+ var viewBounds = this.getPixelBounds(),
+ newBounds = new Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset));
+
+ return offset.add(this._getBoundsOffset(newBounds, bounds));
+ },
+
+ // 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),
+
+ dx = this._rebound(minOffset.x, -maxOffset.x),
+ dy = this._rebound(minOffset.y, -maxOffset.y);
+
+ return new Point(dx, dy);
+ },
+
+ _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));
+ },
+
+ _limitZoom: function (zoom) {
+ var min = this.getMinZoom(),
+ max = this.getMaxZoom(),
+ snap = Browser.any3d ? this.options.zoomSnap : 1;
+ if (snap) {
+ zoom = Math.round(zoom / snap) * snap;
+ }
+ return Math.max(min, Math.min(max, zoom));
+ },
+
+ _onPanTransitionStep: function () {
+ this.fire('move');
+ },
+
+ _onPanTransitionEnd: function () {
+ DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim');
+ this.fire('moveend');
+ },
+
+ _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;
+ },
+
+ _createAnimProxy: function () {
+
+ var proxy = this._proxy = DomUtil.create('div', 'leaflet-proxy leaflet-zoom-animated');
+ this._panes.mapPane.appendChild(proxy);
+
+ this.on('zoomanim', function (e) {
+ var prop = DomUtil.TRANSFORM,
+ transform = this._proxy.style[prop];
+
+ DomUtil.setTransform(this._proxy, this.project(e.center, e.zoom), this.getZoomScale(e.zoom, 1));
+
+ // workaround for case when transform is the same and so transitionend event is not fired
+ if (transform === this._proxy.style[prop] && this._animatingZoom) {
+ this._onZoomTransitionEnd();
+ }
+ }, this);
+
+ this.on('load moveend', function () {
+ var c = this.getCenter(),
+ z = this.getZoom();
+ DomUtil.setTransform(this._proxy, this.project(c, z), this.getZoomScale(z, 1));
+ }, this);
+
+ this._on('unload', this._destroyAnimProxy, this);
+ },
+
+ _destroyAnimProxy: function () {
+ DomUtil.remove(this._proxy);
+ delete this._proxy;
+ },
+
+ _catchTransitionEnd: function (e) {
+ if (this._animatingZoom && e.propertyName.indexOf('transform') >= 0) {
+ this._onZoomTransitionEnd();
+ }
+ },
+
+ _nothingToAnimate: function () {
+ return !this._container.getElementsByClassName('leaflet-zoom-animated').length;
+ },
+
+ _tryAnimatedZoom: function (center, zoom, options) {
+
+ if (this._animatingZoom) { return true; }
+
+ options = options || {};
+
+ // 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; }
+
+ // 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);
+
+ // 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; }
+
+ Util.requestAnimFrame(function () {
+ this
+ ._moveStart(true, false)
+ ._animateZoom(center, zoom, true);
+ }, this);
+
+ return true;
+ },
+
+ _animateZoom: function (center, zoom, startAnim, noUpdate) {
+ if (!this._mapPane) { return; }
+
+ if (startAnim) {
+ this._animatingZoom = true;
+
+ // remember what center/zoom to set after animation
+ this._animateToCenter = center;
+ this._animateToZoom = zoom;
+
+ DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim');
+ }
+
+ // @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(Util.bind(this._onZoomTransitionEnd, this), 250);
+ },
+
+ _onZoomTransitionEnd: function () {
+ if (!this._animatingZoom) { return; }
+
+ if (this._mapPane) {
+ DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim');
+ }
+
+ this._animatingZoom = false;
+
+ this._move(this._animateToCenter, this._animateToZoom);
+
+ // This anim frame should prevent an obscure iOS webkit tile loading race condition.
+ Util.requestAnimFrame(function () {
+ this._moveEnd(true);
+ }, this);
+ }
+});
+
+// @section
+
+// @factory L.map(id: String, options?: Map options)
+// Instantiates a map object given the DOM ID of a `<div>` element
+// and optionally an object literal with `Map options`.
+//
+// @alternative
+// @factory L.map(el: HTMLElement, options?: Map options)
+// Instantiates a map object given an instance of a `<div>` HTML element
+// and optionally an object literal with `Map options`.
+export function createMap(id, options) {
+ return new Map(id, options);
+}
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