+++ /dev/null
-/*
- * Google layer using Google Maps API
- */
-
-/* global google: true */
-
-L.Google = L.Class.extend({
- includes: L.Mixin.Events,
-
- options: {
- minZoom: 0,
- maxZoom: 18,
- tileSize: 256,
- subdomains: 'abc',
- errorTileUrl: '',
- attribution: '',
- opacity: 1,
- continuousWorld: false,
- noWrap: false,
- mapOptions: {
- backgroundColor: '#dddddd'
- }
- },
-
- // Possible types: SATELLITE, ROADMAP, HYBRID, TERRAIN
- initialize: function (type, options) {
- var _this = this;
-
- this._ready = L.Google.isGoogleMapsReady();
-
- L.Util.setOptions(this, options);
-
- this._googleApiPromise = this._ready ? Promise.resolve(window.google) : L.Google.createGoogleApiPromise();
-
- this._googleApiPromise
- .then(function () {
- _this._ready = true;
- _this._initMapObject();
- _this._update();
- });
-
- this._type = type || 'SATELLITE';
- },
-
- onAdd: function (map, insertAtTheBottom) {
- var _this = this;
- this._googleApiPromise
- .then(function () {
- _this._map = map;
- _this._insertAtTheBottom = insertAtTheBottom;
-
- // create a container div for tiles
- _this._initContainer();
- _this._initMapObject();
-
- // set up events
- map.on('viewreset', _this._reset, _this);
-
- _this._limitedUpdate = L.Util.limitExecByInterval(_this._update, 150, _this);
- map.on('move', _this._update, _this);
-
- map.on('zoomanim', _this._handleZoomAnim, _this);
-
- //20px instead of 1em to avoid a slight overlap with google's attribution
- map._controlCorners.bottomright.style.marginBottom = '20px';
-
- _this._reset();
- _this._update();
- });
- },
-
- onRemove: function (map) {
- map._container.removeChild(this._container);
-
- map.off('viewreset', this._reset, this);
-
- map.off('move', this._update, this);
-
- map.off('zoomanim', this._handleZoomAnim, this);
-
- map._controlCorners.bottomright.style.marginBottom = '0em';
- },
-
- getAttribution: function () {
- return this.options.attribution;
- },
-
- setOpacity: function (opacity) {
- this.options.opacity = opacity;
- if (opacity < 1) {
- L.DomUtil.setOpacity(this._container, opacity);
- }
- },
-
- setElementSize: function (e, size) {
- e.style.width = size.x + 'px';
- e.style.height = size.y + 'px';
- },
-
- _initContainer: function () {
- var tilePane = this._map._container,
- first = tilePane.firstChild;
-
- if (!this._container) {
- this._container = L.DomUtil.create('div', 'leaflet-google-layer leaflet-top leaflet-left');
- this._container.id = '_GMapContainer_' + L.Util.stamp(this);
- this._container.style.zIndex = 'auto';
- }
-
- tilePane.insertBefore(this._container, first);
-
- this.setOpacity(this.options.opacity);
- this.setElementSize(this._container, this._map.getSize());
- },
-
- _initMapObject: function () {
- if (!this._ready || !this._container) return;
- this._google_center = new google.maps.LatLng(0, 0);
- var map = new google.maps.Map(this._container, {
- center: this._google_center,
- zoom: 0,
- tilt: 0,
- mapTypeId: google.maps.MapTypeId[this._type],
- disableDefaultUI: true,
- keyboardShortcuts: false,
- draggable: false,
- disableDoubleClickZoom: true,
- scrollwheel: false,
- streetViewControl: false,
- styles: this.options.mapOptions.styles,
- backgroundColor: this.options.mapOptions.backgroundColor
- });
-
- var _this = this;
- this._reposition = google.maps.event.addListenerOnce(map, 'center_changed',
- function () { _this.onReposition(); });
- this._google = map;
-
- google.maps.event.addListenerOnce(map, 'idle',
- function () { _this._checkZoomLevels(); });
- google.maps.event.addListenerOnce(map, 'tilesloaded',
- function () { _this.fire('load'); });
- //Reporting that map-object was initialized.
- this.fire('MapObjectInitialized', {mapObject: map});
- },
-
- _checkZoomLevels: function () {
- //setting the zoom level on the Google map may result in a different zoom level than the one requested
- //(it won't go beyond the level for which they have data).
- // verify and make sure the zoom levels on both Leaflet and Google maps are consistent
- if ((this._map.getZoom() !== undefined) && (this._google.getZoom() !== this._map.getZoom())) {
- //zoom levels are out of sync. Set the leaflet zoom level to match the google one
- this._map.setZoom(this._google.getZoom());
- }
- },
-
- _reset: function () {
- this._initContainer();
- },
-
- _update: function () {
- if (!this._google) return;
- this._resize();
-
- var center = this._map.getCenter();
- var _center = new google.maps.LatLng(center.lat, center.lng);
-
- this._google.setCenter(_center);
- if (this._map.getZoom() !== undefined)
- this._google.setZoom(Math.round(this._map.getZoom()));
-
- this._checkZoomLevels();
- },
-
- _resize: function () {
- var size = this._map.getSize();
- if (this._container.style.width === size.x &&
- this._container.style.height === size.y)
- return;
- this.setElementSize(this._container, size);
- this.onReposition();
- },
-
-
- _handleZoomAnim: function (e) {
- var center = e.center;
- var _center = new google.maps.LatLng(center.lat, center.lng);
-
- this._google.setCenter(_center);
- this._google.setZoom(Math.round(e.zoom));
- },
-
-
- onReposition: function () {
- if (!this._google) return;
- google.maps.event.trigger(this._google, 'resize');
- }
-});
-
-L.Google.isGoogleMapsReady = function () {
- return !!window.google && !!window.google.maps && !!window.google.maps.Map;
-};
-
-// backwards compat
-L.Google.asyncInitialize = L.Google.isGoogleMapsReady;
-
-L.Google.maxApiChecks = 10;
-
-L.Google.apiCheckIntervalMilliSecs = 500;
-
-L.Google.createGoogleApiPromise = function () {
- var checkCounter = 0;
- var intervalId = null;
-
- return new Promise(function (resolve, reject) {
- intervalId = setInterval(function () {
- if (checkCounter >= L.Google.maxApiChecks && !L.Google.isGoogleMapsReady()) {
- clearInterval(intervalId);
- return reject(new Error('window.google not found after max attempts'));
- }
- if (L.Google.isGoogleMapsReady()) {
- clearInterval(intervalId);
- return resolve(window.google);
- }
- checkCounter++;
- }, L.Google.apiCheckIntervalMilliSecs);
- });
-};
dépôts / lhc / web / www.git / blobdiff