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@brcharron
Forked from crofty/leaflet-google.js
Last active December 23, 2015 21:19
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/*
* L.TileLayer is used for standard xyz-numbered tile layers.
*/
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,
},
initialize: function(options) {
L.Util.setOptions(this, options);
// Possible types: SATELLITE, ROADMAP, HYBRID
this._type = google.maps.MapTypeId[options.type || 'SATELLITE'];
},
onAdd: function(map, insertAtTheBottom) {
this._map = map;
this._insertAtTheBottom = insertAtTheBottom;
// create a container div for tiles
this._initContainer();
this._initMapObject();
// set up events
map.on('viewreset', this._resetCallback, this);
this._limitedUpdate = L.Util.limitExecByInterval(this._update, 150, this);
map.on('move', this._update, this);
//map.on('moveend', this._update, this);
this._reset();
this._update();
},
onRemove: function(map) {
this._map._container.removeChild(this._container);
//this._container = null;
this._map.off('viewreset', this._resetCallback, this);
this._map.off('move', this._update, this);
//this._map.off('moveend', this._update, this);
},
getAttribution: function() {
return this.options.attribution;
},
setOpacity: function(opacity) {
this.options.opacity = opacity;
if (opacity < 1) {
L.DomUtil.setOpacity(this._container, opacity);
}
},
_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";
}
this._updateZIndex();
if (true) {
tilePane.insertBefore(this._container, first);
this.setOpacity(this.options.opacity);
var size = this._map.getSize();
this._container.style.width = size.x + 'px';
this._container.style.height = size.y + 'px';
}
},
_initMapObject: function() {
this._google_center = new google.maps.LatLng(0, 0);
var map = new google.maps.Map(this._container, {
center: this._google_center,
zoom: 0,
mapTypeId: this._type,
disableDefaultUI: true,
keyboardShortcuts: false,
draggable: false,
disableDoubleClickZoom: true,
scrollwheel: false,
streetViewControl: false
});
var _this = this;
this._reposition = google.maps.event.addListenerOnce(map, "center_changed",
function() { _this.onReposition(); });
map.backgroundColor = '#ff0000';
this._google = map;
},
_resetCallback: function(e) {
this._reset(e.hard);
},
_reset: function(clearOldContainer) {
this._initContainer();
},
_updateZIndex: function () {
if (this._container && this.options.zIndex !== undefined) {
this._container.style.zIndex = this.options.zIndex;
}
},
_update: function() {
var map = this._map,
zoom = map.getZoom();
if (zoom > this.options.maxZoom || zoom < this.options.minZoom) {
this._container.style.visibility = 'hidden';
return;
}
this._container.style.visibility = 'visible';
this._resize();
var bounds = this._map.getBounds();
var ne = bounds.getNorthEast();
var sw = bounds.getSouthWest();
var google_bounds = new google.maps.LatLngBounds(
new google.maps.LatLng(sw.lat, sw.lng),
new google.maps.LatLng(ne.lat, ne.lng)
);
var center = this._map.getCenter();
var _center = new google.maps.LatLng(center.lat, center.lng);
this._google.setCenter(_center);
this._google.setZoom(this._map.getZoom());
//this._google.fitBounds(google_bounds);
},
_resize: function() {
var size = this._map.getSize();
if (this._container.style.width == size.x &&
this._container.style.height == size.y)
return;
this._container.style.width = size.x + 'px';
this._container.style.height = size.y + 'px';
google.maps.event.trigger(this._google, "resize");
},
onReposition: function() {
//google.maps.event.trigger(this._google, "resize");
}
});
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