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delphine |
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/*
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* Google layer using Google Maps API
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*/
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//(function (google, L) {
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L.Google = L.Class.extend({
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includes: L.Mixin.Events,
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options: {
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minZoom: 0,
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maxZoom: 18,
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tileSize: 256,
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subdomains: 'abc',
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errorTileUrl: '',
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attribution: '',
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opacity: 1,
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continuousWorld: false,
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noWrap: false
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},
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// Possible types: SATELLITE, ROADMAP, HYBRID, TERRAIN
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initialize: function(type, options) {
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L.Util.setOptions(this, options);
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this._ready = google.maps.Map != undefined;
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if (!this._ready) L.Google.asyncWait.push(this);
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this._type = type || 'SATELLITE';
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},
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onAdd: function(map, insertAtTheBottom) {
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this._map = map;
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this._insertAtTheBottom = insertAtTheBottom;
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// create a container div for tiles
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this._initContainer();
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this._initMapObject();
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// set up events
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map.on('viewreset', this._resetCallback, this);
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this._limitedUpdate = L.Util.limitExecByInterval(this._update, 150, this);
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map.on('move', this._update, this);
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//map.on('moveend', this._update, this);
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map._controlCorners['bottomright'].style.marginBottom = "1em";
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this._reset();
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this._update();
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},
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onRemove: function(map) {
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this._map._container.removeChild(this._container);
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//this._container = null;
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this._map.off('viewreset', this._resetCallback, this);
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this._map.off('move', this._update, this);
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map._controlCorners['bottomright'].style.marginBottom = "0em";
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//this._map.off('moveend', this._update, this);
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},
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getAttribution: function() {
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return this.options.attribution;
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},
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setOpacity: function(opacity) {
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this.options.opacity = opacity;
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if (opacity < 1) {
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L.DomUtil.setOpacity(this._container, opacity);
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}
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},
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setElementSize: function(e, size) {
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e.style.width = size.x + "px";
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e.style.height = size.y + "px";
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},
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_initContainer: function() {
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var tilePane = this._map._container,
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first = tilePane.firstChild;
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if (!this._container) {
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this._container = L.DomUtil.create('div', 'leaflet-google-layer leaflet-top leaflet-left');
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this._container.id = "_GMapContainer_" + L.Util.stamp(this);
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this._container.style.zIndex = "auto";
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}
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if (true) {
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tilePane.insertBefore(this._container, first);
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this.setOpacity(this.options.opacity);
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this.setElementSize(this._container, this._map.getSize());
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}
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},
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_initMapObject: function() {
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if (!this._ready) return;
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this._google_center = new google.maps.LatLng(0, 0);
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var map = new google.maps.Map(this._container, {
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center: this._google_center,
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zoom: 0,
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tilt: 0,
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mapTypeId: google.maps.MapTypeId[this._type],
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disableDefaultUI: true,
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keyboardShortcuts: false,
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draggable: false,
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disableDoubleClickZoom: true,
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scrollwheel: false,
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streetViewControl: false
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});
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var _this = this;
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this._reposition = google.maps.event.addListenerOnce(map, "center_changed",
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function() { _this.onReposition(); });
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map.backgroundColor = '#ff0000';
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this._google = map;
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},
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_resetCallback: function(e) {
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this._reset(e.hard);
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},
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_reset: function(clearOldContainer) {
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this._initContainer();
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},
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_update: function() {
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if (!this._google) return;
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this._resize();
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var bounds = this._map.getBounds();
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var ne = bounds.getNorthEast();
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var sw = bounds.getSouthWest();
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var google_bounds = new google.maps.LatLngBounds(
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new google.maps.LatLng(sw.lat, sw.lng),
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new google.maps.LatLng(ne.lat, ne.lng)
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);
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var center = this._map.getCenter();
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var _center = new google.maps.LatLng(center.lat, center.lng);
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this._google.setCenter(_center);
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this._google.setZoom(this._map.getZoom());
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//this._google.fitBounds(google_bounds);
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},
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_resize: function() {
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var size = this._map.getSize();
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if (this._container.style.width == size.x &&
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this._container.style.height == size.y)
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return;
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this.setElementSize(this._container, size);
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this.onReposition();
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},
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onReposition: function() {
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if (!this._google) return;
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google.maps.event.trigger(this._google, "resize");
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}
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});
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L.Google.asyncWait = [];
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L.Google.asyncInitialize = function() {
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var i;
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for (i = 0; i < L.Google.asyncWait.length; i++) {
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var o = L.Google.asyncWait[i];
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o._ready = true;
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if (o._container) {
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o._initMapObject();
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o._update();
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}
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}
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L.Google.asyncWait = [];
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}
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//})(window.google, L)
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