1426 lines
43 KiB
JavaScript
1426 lines
43 KiB
JavaScript
/**
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* Google V3 API horde map driver.
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*
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* Copyright 2011-2017 Horde LLC (http://www.horde.org/)
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*
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* See the enclosed file COPYING for license information (GPL). If you
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* did not receive this file, see http://www.fsf.org/copyleft/gpl.html.
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*
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* @author Michael J. Rubinsky <mrubinsk@horde.org>
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*/
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HordeMap.Google = Class.create(
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{
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initialize: function(opts) {},
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getLayers: function(layer)
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{
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return {
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'streets': new OpenLayers.Layer.Google('Google Streets', {}),
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'sat': new OpenLayers.Layer.Google(
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'Google Satellite',
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{
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'type': google.maps.MapTypeId.SATELLITE,
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'minZoomLevel': 0
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}
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),
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'hybrid': new OpenLayers.Layer.Google(
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'Google Hybrid',
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{
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'type': google.maps.MapTypeId.HYBRID,
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'minZoomLevel': 0
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}
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),
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'terrain': new OpenLayers.Layer.Google(
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'Google Physical',
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{
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'type': google.maps.MapTypeId.TERRAIN,
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'numZoomLevels': 16,
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'minZoomLevel': 0
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}
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)
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}
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}
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});
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/**
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* HordeMap geocoder
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*/
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HordeMap.Geocoder.Google = Class.create(
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{
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initialize: function(map)
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{
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this.gc = new google.maps.Geocoder();
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},
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/**
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* Perform geocode request.
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*/
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geocode: function(address, completeCallback, errorCallback)
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{
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/* Need to wrap the callback to make sure we return the same
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* data structures for each provider
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*/
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this._userCallback = completeCallback;
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this._errorCallback = errorCallback || function() {};
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this.gc.geocode({ 'address': address }, this._callback.bind(this));
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},
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_callback: function(r, s)
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{
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if (s != google.maps.GeocoderStatus.OK) {
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this._errorCallback(s);
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return;
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}
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var results = [];
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r.each(function(entry) {
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// TODO: convert location_type to some normalized value for Horde
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var ll = {
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lon: entry.geometry.location.lng(),
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lat: entry.geometry.location.lat(),
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precision: entry.geometry.location_type
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};
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results.push(ll);
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});
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this._userCallback(results);
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},
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/**
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* precision:
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* 0 - none
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* 1 - location
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* 2 - street address
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*/
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_reverseCallback: function(r, s)
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{
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if (s != google.maps.GeocoderStatus.OK) {
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this._errorCallback(s);
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return;
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}
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var results = [];
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r.each(function(entry) {
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var ll = {
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lon: entry.geometry.location.lng(),
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lat: entry.geometry.location.lat(),
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address: entry.formatted_address,
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precision: (entry.types[0] == 'street_address') ? 2 : 1
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};
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results.push(ll);
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});
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this._userCallback(results);
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},
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/**
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* Reverse geocode request
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*
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* @TODO: Need to wrap wrap the completeCallback with our own handler
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* and intercept any errors then forward to the errorCallback.
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*/
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reverseGeocode: function(latlon, completeCallback, errorCallback)
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{
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this._userCallback = completeCallback;
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this._errorCallback = errorCallback || function () {};
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this.gc.geocode(
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{ 'latLng': new google.maps.LatLng(latlon.lat, latlon.lon) },
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this._reverseCallback.bind(this)
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);
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}
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});
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/* Copyright (c) 2006-2011 by OpenLayers Contributors (see authors.txt for
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* full list of contributors). Published under the Clear BSD license.
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* See http://svn.openlayers.org/trunk/openlayers/license.txt for the
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* full text of the license. */
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/**
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* @requires OpenLayers/Layer/SphericalMercator.js
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* @requires OpenLayers/Layer/EventPane.js
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* @requires OpenLayers/Layer/FixedZoomLevels.js
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* @requires OpenLayers/Lang.js
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*/
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/**
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* Class: OpenLayers.Layer.Google
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*
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* Inherits from:
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* - <OpenLayers.Layer.SphericalMercator>
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* - <OpenLayers.Layer.EventPane>
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* - <OpenLayers.Layer.FixedZoomLevels>
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*/
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OpenLayers.Layer.Google = OpenLayers.Class(
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OpenLayers.Layer.EventPane,
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OpenLayers.Layer.FixedZoomLevels, {
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/**
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* Constant: MIN_ZOOM_LEVEL
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* {Integer} 0
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*/
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MIN_ZOOM_LEVEL: 0,
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/**
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* Constant: MAX_ZOOM_LEVEL
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* {Integer} 21
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*/
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MAX_ZOOM_LEVEL: 21,
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/**
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* Constant: RESOLUTIONS
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* {Array(Float)} Hardcode these resolutions so that they are more closely
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* tied with the standard wms projection
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*/
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RESOLUTIONS: [
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1.40625,
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0.703125,
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0.3515625,
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0.17578125,
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0.087890625,
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0.0439453125,
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0.02197265625,
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0.010986328125,
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0.0054931640625,
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0.00274658203125,
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0.001373291015625,
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0.0006866455078125,
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0.00034332275390625,
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0.000171661376953125,
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0.0000858306884765625,
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0.00004291534423828125,
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0.00002145767211914062,
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0.00001072883605957031,
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0.00000536441802978515,
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0.00000268220901489257,
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0.0000013411045074462891,
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0.00000067055225372314453
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],
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/**
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* APIProperty: type
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* {GMapType}
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*/
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type: null,
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/**
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* APIProperty: wrapDateLine
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* {Boolean} Allow user to pan forever east/west. Default is true.
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* Setting this to false only restricts panning if
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* <sphericalMercator> is true.
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*/
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wrapDateLine: true,
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/**
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* APIProperty: sphericalMercator
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* {Boolean} Should the map act as a mercator-projected map? This will
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* cause all interactions with the map to be in the actual map
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* projection, which allows support for vector drawing, overlaying
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* other maps, etc.
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*/
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sphericalMercator: false,
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/**
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* Property: version
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* {Number} The version of the Google Maps API
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*/
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version: null,
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/**
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* Constructor: OpenLayers.Layer.Google
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*
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* Parameters:
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* name - {String} A name for the layer.
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* options - {Object} An optional object whose properties will be set
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* on the layer.
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*/
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initialize: function(name, options) {
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options = options || {};
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if(!options.version) {
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options.version = typeof GMap2 === "function" ? "2" : "3";
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}
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var mixin = OpenLayers.Layer.Google["v" +
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options.version.replace(/\./g, "_")];
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if (mixin) {
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OpenLayers.Util.applyDefaults(options, mixin);
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} else {
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throw "Unsupported Google Maps API version: " + options.version;
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}
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OpenLayers.Util.applyDefaults(options, mixin.DEFAULTS);
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if (options.maxExtent) {
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options.maxExtent = options.maxExtent.clone();
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}
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OpenLayers.Layer.EventPane.prototype.initialize.apply(this,
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[name, options]);
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OpenLayers.Layer.FixedZoomLevels.prototype.initialize.apply(this,
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[name, options]);
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if (this.sphericalMercator) {
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OpenLayers.Util.extend(this, OpenLayers.Layer.SphericalMercator);
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this.initMercatorParameters();
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}
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},
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/**
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* Method: clone
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* Create a clone of this layer
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*
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* Returns:
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* {<OpenLayers.Layer.Google>} An exact clone of this layer
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*/
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clone: function() {
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/**
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* This method isn't intended to be called by a subclass and it
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* doesn't call the same method on the superclass. We don't call
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* the super's clone because we don't want properties that are set
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* on this layer after initialize (i.e. this.mapObject etc.).
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*/
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return new OpenLayers.Layer.Google(
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this.name, this.getOptions()
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);
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},
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/**
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* APIMethod: setVisibility
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* Set the visibility flag for the layer and hide/show & redraw
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* accordingly. Fire event unless otherwise specified
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*
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* Note that visibility is no longer simply whether or not the layer's
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* style.display is set to "block". Now we store a 'visibility' state
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* property on the layer class, this allows us to remember whether or
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* not we *desire* for a layer to be visible. In the case where the
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* map's resolution is out of the layer's range, this desire may be
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* subverted.
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*
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* Parameters:
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* visible - {Boolean} Display the layer (if in range)
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*/
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setVisibility: function(visible) {
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// sharing a map container, opacity has to be set per layer
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var opacity = this.opacity == null ? 1 : this.opacity;
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OpenLayers.Layer.EventPane.prototype.setVisibility.apply(this, arguments);
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this.setOpacity(opacity);
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},
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/**
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* APIMethod: display
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* Hide or show the Layer
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*
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* Parameters:
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* display - {Boolean}
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*/
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display: function(visible) {
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if (!this._dragging) {
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this.setGMapVisibility(visible);
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}
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OpenLayers.Layer.EventPane.prototype.display.apply(this, arguments);
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},
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/**
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* Method: moveTo
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*
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* Parameters:
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* bound - {<OpenLayers.Bounds>}
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* zoomChanged - {Boolean} Tells when zoom has changed, as layers have to
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* do some init work in that case.
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* dragging - {Boolean}
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*/
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moveTo: function(bounds, zoomChanged, dragging) {
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this._dragging = dragging;
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OpenLayers.Layer.EventPane.prototype.moveTo.apply(this, arguments);
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delete this._dragging;
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},
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/**
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* APIMethod: setOpacity
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* Sets the opacity for the entire layer (all images)
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*
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* Parameter:
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* opacity - {Float}
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*/
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setOpacity: function(opacity) {
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if (opacity !== this.opacity) {
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if (this.map != null) {
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this.map.events.triggerEvent("changelayer", {
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layer: this,
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property: "opacity"
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});
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}
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this.opacity = opacity;
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}
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// Though this layer's opacity may not change, we're sharing a container
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// and need to update the opacity for the entire container.
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if (this.getVisibility()) {
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var container = this.getMapContainer();
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OpenLayers.Util.modifyDOMElement(
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container, null, null, null, null, null, null, opacity
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);
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}
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},
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/**
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* APIMethod: destroy
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* Clean up this layer.
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*/
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destroy: function() {
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/**
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* We have to override this method because the event pane destroy
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* deletes the mapObject reference before removing this layer from
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* the map.
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*/
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if (this.map) {
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this.setGMapVisibility(false);
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var cache = OpenLayers.Layer.Google.cache[this.map.id];
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if (cache && cache.count <= 1) {
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this.removeGMapElements();
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}
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}
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OpenLayers.Layer.EventPane.prototype.destroy.apply(this, arguments);
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},
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/**
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* Method: removeGMapElements
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* Remove all elements added to the dom. This should only be called if
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* this is the last of the Google layers for the given map.
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*/
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removeGMapElements: function() {
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var cache = OpenLayers.Layer.Google.cache[this.map.id];
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if (cache) {
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// remove shared elements from dom
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var container = this.mapObject && this.getMapContainer();
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if (container && container.parentNode) {
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container.parentNode.removeChild(container);
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}
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var termsOfUse = cache.termsOfUse;
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if (termsOfUse && termsOfUse.parentNode) {
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termsOfUse.parentNode.removeChild(termsOfUse);
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}
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var poweredBy = cache.poweredBy;
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if (poweredBy && poweredBy.parentNode) {
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poweredBy.parentNode.removeChild(poweredBy);
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}
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}
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},
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/**
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* APIMethod: removeMap
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* On being removed from the map, also remove termsOfUse and poweredBy divs
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*
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* Parameters:
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* map - {<OpenLayers.Map>}
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*/
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removeMap: function(map) {
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// hide layer before removing
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if (this.visibility && this.mapObject) {
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this.setGMapVisibility(false);
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}
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// check to see if last Google layer in this map
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var cache = OpenLayers.Layer.Google.cache[map.id];
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if (cache) {
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if (cache.count <= 1) {
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this.removeGMapElements();
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delete OpenLayers.Layer.Google.cache[map.id];
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} else {
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// decrement the layer count
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--cache.count;
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}
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}
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// remove references to gmap elements
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delete this.termsOfUse;
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delete this.poweredBy;
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delete this.mapObject;
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delete this.dragObject;
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OpenLayers.Layer.EventPane.prototype.removeMap.apply(this, arguments);
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},
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//
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// TRANSLATION: MapObject Bounds <-> OpenLayers.Bounds
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//
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/**
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* APIMethod: getOLBoundsFromMapObjectBounds
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*
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* Parameters:
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* moBounds - {Object}
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*
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* Returns:
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* {<OpenLayers.Bounds>} An <OpenLayers.Bounds>, translated from the
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* passed-in MapObject Bounds.
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* Returns null if null value is passed in.
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*/
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getOLBoundsFromMapObjectBounds: function(moBounds) {
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var olBounds = null;
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if (moBounds != null) {
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var sw = moBounds.getSouthWest();
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var ne = moBounds.getNorthEast();
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if (this.sphericalMercator) {
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sw = this.forwardMercator(sw.lng(), sw.lat());
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ne = this.forwardMercator(ne.lng(), ne.lat());
|
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} else {
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sw = new OpenLayers.LonLat(sw.lng(), sw.lat());
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ne = new OpenLayers.LonLat(ne.lng(), ne.lat());
|
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}
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olBounds = new OpenLayers.Bounds(sw.lon,
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sw.lat,
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ne.lon,
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ne.lat );
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}
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return olBounds;
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},
|
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|
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/**
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|
* APIMethod: getWarningHTML
|
|
*
|
|
* Returns:
|
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* {String} String with information on why layer is broken, how to get
|
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* it working.
|
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*/
|
|
getWarningHTML:function() {
|
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return OpenLayers.i18n("googleWarning");
|
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},
|
|
|
|
|
|
/************************************
|
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* *
|
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* MapObject Interface Controls *
|
|
* *
|
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************************************/
|
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|
|
|
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// Get&Set Center, Zoom
|
|
|
|
/**
|
|
* APIMethod: getMapObjectCenter
|
|
*
|
|
* Returns:
|
|
* {Object} The mapObject's current center in Map Object format
|
|
*/
|
|
getMapObjectCenter: function() {
|
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return this.mapObject.getCenter();
|
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},
|
|
|
|
/**
|
|
* APIMethod: getMapObjectZoom
|
|
*
|
|
* Returns:
|
|
* {Integer} The mapObject's current zoom, in Map Object format
|
|
*/
|
|
getMapObjectZoom: function() {
|
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return this.mapObject.getZoom();
|
|
},
|
|
|
|
|
|
/************************************
|
|
* *
|
|
* MapObject Primitives *
|
|
* *
|
|
************************************/
|
|
|
|
|
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// LonLat
|
|
|
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/**
|
|
* APIMethod: getLongitudeFromMapObjectLonLat
|
|
*
|
|
* Parameters:
|
|
* moLonLat - {Object} MapObject LonLat format
|
|
*
|
|
* Returns:
|
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* {Float} Longitude of the given MapObject LonLat
|
|
*/
|
|
getLongitudeFromMapObjectLonLat: function(moLonLat) {
|
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return this.sphericalMercator ?
|
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this.forwardMercator(moLonLat.lng(), moLonLat.lat()).lon :
|
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moLonLat.lng();
|
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},
|
|
|
|
/**
|
|
* APIMethod: getLatitudeFromMapObjectLonLat
|
|
*
|
|
* Parameters:
|
|
* moLonLat - {Object} MapObject LonLat format
|
|
*
|
|
* Returns:
|
|
* {Float} Latitude of the given MapObject LonLat
|
|
*/
|
|
getLatitudeFromMapObjectLonLat: function(moLonLat) {
|
|
var lat = this.sphericalMercator ?
|
|
this.forwardMercator(moLonLat.lng(), moLonLat.lat()).lat :
|
|
moLonLat.lat();
|
|
return lat;
|
|
},
|
|
|
|
// Pixel
|
|
|
|
/**
|
|
* APIMethod: getXFromMapObjectPixel
|
|
*
|
|
* Parameters:
|
|
* moPixel - {Object} MapObject Pixel format
|
|
*
|
|
* Returns:
|
|
* {Integer} X value of the MapObject Pixel
|
|
*/
|
|
getXFromMapObjectPixel: function(moPixel) {
|
|
return moPixel.x;
|
|
},
|
|
|
|
/**
|
|
* APIMethod: getYFromMapObjectPixel
|
|
*
|
|
* Parameters:
|
|
* moPixel - {Object} MapObject Pixel format
|
|
*
|
|
* Returns:
|
|
* {Integer} Y value of the MapObject Pixel
|
|
*/
|
|
getYFromMapObjectPixel: function(moPixel) {
|
|
return moPixel.y;
|
|
},
|
|
|
|
CLASS_NAME: "OpenLayers.Layer.Google"
|
|
});
|
|
|
|
/**
|
|
* Property: OpenLayers.Layer.Google.cache
|
|
* {Object} Cache for elements that should only be created once per map.
|
|
*/
|
|
OpenLayers.Layer.Google.cache = {};
|
|
|
|
|
|
/**
|
|
* Constant: OpenLayers.Layer.Google.v2
|
|
*
|
|
* Mixin providing functionality specific to the Google Maps API v2.
|
|
*/
|
|
OpenLayers.Layer.Google.v2 = {
|
|
|
|
/**
|
|
* Property: termsOfUse
|
|
* {DOMElement} Div for Google's copyright and terms of use link
|
|
*/
|
|
termsOfUse: null,
|
|
|
|
/**
|
|
* Property: poweredBy
|
|
* {DOMElement} Div for Google's powered by logo and link
|
|
*/
|
|
poweredBy: null,
|
|
|
|
/**
|
|
* Property: dragObject
|
|
* {GDraggableObject} Since 2.93, Google has exposed the ability to get
|
|
* the maps GDraggableObject. We can now use this for smooth panning
|
|
*/
|
|
dragObject: null,
|
|
|
|
/**
|
|
* Method: loadMapObject
|
|
* Load the GMap and register appropriate event listeners. If we can't
|
|
* load GMap2, then display a warning message.
|
|
*/
|
|
loadMapObject:function() {
|
|
if (!this.type) {
|
|
this.type = G_NORMAL_MAP;
|
|
}
|
|
var mapObject, termsOfUse, poweredBy;
|
|
var cache = OpenLayers.Layer.Google.cache[this.map.id];
|
|
if (cache) {
|
|
// there are already Google layers added to this map
|
|
mapObject = cache.mapObject;
|
|
termsOfUse = cache.termsOfUse;
|
|
poweredBy = cache.poweredBy;
|
|
// increment the layer count
|
|
++cache.count;
|
|
} else {
|
|
// this is the first Google layer for this map
|
|
|
|
var container = this.map.viewPortDiv;
|
|
var div = document.createElement("div");
|
|
div.id = this.map.id + "_GMap2Container";
|
|
div.style.position = "absolute";
|
|
div.style.width = "100%";
|
|
div.style.height = "100%";
|
|
container.appendChild(div);
|
|
|
|
// create GMap and shuffle elements
|
|
try {
|
|
mapObject = new GMap2(div);
|
|
|
|
// move the ToS and branding stuff up to the container div
|
|
termsOfUse = div.lastChild;
|
|
container.appendChild(termsOfUse);
|
|
termsOfUse.style.zIndex = "1100";
|
|
termsOfUse.style.right = "";
|
|
termsOfUse.style.bottom = "";
|
|
termsOfUse.className = "olLayerGoogleCopyright";
|
|
|
|
poweredBy = div.lastChild;
|
|
container.appendChild(poweredBy);
|
|
poweredBy.style.zIndex = "1100";
|
|
poweredBy.style.right = "";
|
|
poweredBy.style.bottom = "";
|
|
poweredBy.className = "olLayerGooglePoweredBy gmnoprint";
|
|
|
|
} catch (e) {
|
|
throw(e);
|
|
}
|
|
// cache elements for use by any other google layers added to
|
|
// this same map
|
|
OpenLayers.Layer.Google.cache[this.map.id] = {
|
|
mapObject: mapObject,
|
|
termsOfUse: termsOfUse,
|
|
poweredBy: poweredBy,
|
|
count: 1
|
|
};
|
|
}
|
|
|
|
this.mapObject = mapObject;
|
|
this.termsOfUse = termsOfUse;
|
|
this.poweredBy = poweredBy;
|
|
|
|
// ensure this layer type is one of the mapObject types
|
|
if (OpenLayers.Util.indexOf(this.mapObject.getMapTypes(),
|
|
this.type) === -1) {
|
|
this.mapObject.addMapType(this.type);
|
|
}
|
|
|
|
//since v 2.93 getDragObject is now available.
|
|
if(typeof mapObject.getDragObject == "function") {
|
|
this.dragObject = mapObject.getDragObject();
|
|
} else {
|
|
this.dragPanMapObject = null;
|
|
}
|
|
|
|
if(this.isBaseLayer === false) {
|
|
this.setGMapVisibility(this.div.style.display !== "none");
|
|
}
|
|
|
|
},
|
|
|
|
/**
|
|
* APIMethod: onMapResize
|
|
*/
|
|
onMapResize: function() {
|
|
// workaround for resizing of invisible or not yet fully loaded layers
|
|
// where GMap2.checkResize() does not work. We need to load the GMap
|
|
// for the old div size, then checkResize(), and then call
|
|
// layer.moveTo() to trigger GMap.setCenter() (which will finish
|
|
// the GMap initialization).
|
|
if(this.visibility && this.mapObject.isLoaded()) {
|
|
this.mapObject.checkResize();
|
|
} else {
|
|
if(!this._resized) {
|
|
var layer = this;
|
|
var handle = GEvent.addListener(this.mapObject, "load", function() {
|
|
GEvent.removeListener(handle);
|
|
delete layer._resized;
|
|
layer.mapObject.checkResize();
|
|
layer.moveTo(layer.map.getCenter(), layer.map.getZoom());
|
|
});
|
|
}
|
|
this._resized = true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Method: setGMapVisibility
|
|
* Display the GMap container and associated elements.
|
|
*
|
|
* Parameters:
|
|
* visible - {Boolean} Display the GMap elements.
|
|
*/
|
|
setGMapVisibility: function(visible) {
|
|
var cache = OpenLayers.Layer.Google.cache[this.map.id];
|
|
if (cache) {
|
|
var container = this.mapObject.getContainer();
|
|
if (visible === true) {
|
|
this.mapObject.setMapType(this.type);
|
|
container.style.display = "";
|
|
this.termsOfUse.style.left = "";
|
|
this.termsOfUse.style.display = "";
|
|
this.poweredBy.style.display = "";
|
|
cache.displayed = this.id;
|
|
} else {
|
|
if (cache.displayed === this.id) {
|
|
delete cache.displayed;
|
|
}
|
|
if (!cache.displayed) {
|
|
container.style.display = "none";
|
|
this.termsOfUse.style.display = "none";
|
|
// move ToU far to the left in addition to setting display
|
|
// to "none", because at the end of the GMap2 load
|
|
// sequence, display: none will be unset and ToU would be
|
|
// visible after loading a map with a google layer that is
|
|
// initially hidden.
|
|
this.termsOfUse.style.left = "-9999px";
|
|
this.poweredBy.style.display = "none";
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Method: getMapContainer
|
|
*
|
|
* Returns:
|
|
* {DOMElement} the GMap container's div
|
|
*/
|
|
getMapContainer: function() {
|
|
return this.mapObject.getContainer();
|
|
},
|
|
|
|
//
|
|
// TRANSLATION: MapObject Bounds <-> OpenLayers.Bounds
|
|
//
|
|
|
|
/**
|
|
* APIMethod: getMapObjectBoundsFromOLBounds
|
|
*
|
|
* Parameters:
|
|
* olBounds - {<OpenLayers.Bounds>}
|
|
*
|
|
* Returns:
|
|
* {Object} A MapObject Bounds, translated from olBounds
|
|
* Returns null if null value is passed in
|
|
*/
|
|
getMapObjectBoundsFromOLBounds: function(olBounds) {
|
|
var moBounds = null;
|
|
if (olBounds != null) {
|
|
var sw = this.sphericalMercator ?
|
|
this.inverseMercator(olBounds.bottom, olBounds.left) :
|
|
new OpenLayers.LonLat(olBounds.bottom, olBounds.left);
|
|
var ne = this.sphericalMercator ?
|
|
this.inverseMercator(olBounds.top, olBounds.right) :
|
|
new OpenLayers.LonLat(olBounds.top, olBounds.right);
|
|
moBounds = new GLatLngBounds(new GLatLng(sw.lat, sw.lon),
|
|
new GLatLng(ne.lat, ne.lon));
|
|
}
|
|
return moBounds;
|
|
},
|
|
|
|
|
|
/************************************
|
|
* *
|
|
* MapObject Interface Controls *
|
|
* *
|
|
************************************/
|
|
|
|
|
|
// Get&Set Center, Zoom
|
|
|
|
/**
|
|
* APIMethod: setMapObjectCenter
|
|
* Set the mapObject to the specified center and zoom
|
|
*
|
|
* Parameters:
|
|
* center - {Object} MapObject LonLat format
|
|
* zoom - {int} MapObject zoom format
|
|
*/
|
|
setMapObjectCenter: function(center, zoom) {
|
|
this.mapObject.setCenter(center, zoom);
|
|
},
|
|
|
|
/**
|
|
* APIMethod: dragPanMapObject
|
|
*
|
|
* Parameters:
|
|
* dX - {Integer}
|
|
* dY - {Integer}
|
|
*/
|
|
dragPanMapObject: function(dX, dY) {
|
|
this.dragObject.moveBy(new GSize(-dX, dY));
|
|
},
|
|
|
|
|
|
// LonLat - Pixel Translation
|
|
|
|
/**
|
|
* APIMethod: getMapObjectLonLatFromMapObjectPixel
|
|
*
|
|
* Parameters:
|
|
* moPixel - {Object} MapObject Pixel format
|
|
*
|
|
* Returns:
|
|
* {Object} MapObject LonLat translated from MapObject Pixel
|
|
*/
|
|
getMapObjectLonLatFromMapObjectPixel: function(moPixel) {
|
|
return this.mapObject.fromContainerPixelToLatLng(moPixel);
|
|
},
|
|
|
|
/**
|
|
* APIMethod: getMapObjectPixelFromMapObjectLonLat
|
|
*
|
|
* Parameters:
|
|
* moLonLat - {Object} MapObject LonLat format
|
|
*
|
|
* Returns:
|
|
* {Object} MapObject Pixel transtlated from MapObject LonLat
|
|
*/
|
|
getMapObjectPixelFromMapObjectLonLat: function(moLonLat) {
|
|
return this.mapObject.fromLatLngToContainerPixel(moLonLat);
|
|
},
|
|
|
|
|
|
// Bounds
|
|
|
|
/**
|
|
* APIMethod: getMapObjectZoomFromMapObjectBounds
|
|
*
|
|
* Parameters:
|
|
* moBounds - {Object} MapObject Bounds format
|
|
*
|
|
* Returns:
|
|
* {Object} MapObject Zoom for specified MapObject Bounds
|
|
*/
|
|
getMapObjectZoomFromMapObjectBounds: function(moBounds) {
|
|
return this.mapObject.getBoundsZoomLevel(moBounds);
|
|
},
|
|
|
|
/************************************
|
|
* *
|
|
* MapObject Primitives *
|
|
* *
|
|
************************************/
|
|
|
|
|
|
// LonLat
|
|
|
|
/**
|
|
* APIMethod: getMapObjectLonLatFromLonLat
|
|
*
|
|
* Parameters:
|
|
* lon - {Float}
|
|
* lat - {Float}
|
|
*
|
|
* Returns:
|
|
* {Object} MapObject LonLat built from lon and lat params
|
|
*/
|
|
getMapObjectLonLatFromLonLat: function(lon, lat) {
|
|
var gLatLng;
|
|
if(this.sphericalMercator) {
|
|
var lonlat = this.inverseMercator(lon, lat);
|
|
gLatLng = new GLatLng(lonlat.lat, lonlat.lon);
|
|
} else {
|
|
gLatLng = new GLatLng(lat, lon);
|
|
}
|
|
return gLatLng;
|
|
},
|
|
|
|
// Pixel
|
|
|
|
/**
|
|
* APIMethod: getMapObjectPixelFromXY
|
|
*
|
|
* Parameters:
|
|
* x - {Integer}
|
|
* y - {Integer}
|
|
*
|
|
* Returns:
|
|
* {Object} MapObject Pixel from x and y parameters
|
|
*/
|
|
getMapObjectPixelFromXY: function(x, y) {
|
|
return new GPoint(x, y);
|
|
}
|
|
|
|
};
|
|
/* Copyright (c) 2006-2011 by OpenLayers Contributors (see authors.txt for
|
|
* full list of contributors). Published under the Clear BSD license.
|
|
* See http://svn.openlayers.org/trunk/openlayers/license.txt for the
|
|
* full text of the license. */
|
|
|
|
|
|
/**
|
|
* @requires OpenLayers/Layer/Google.js
|
|
*/
|
|
|
|
/**
|
|
* Constant: OpenLayers.Layer.Google.v3
|
|
*
|
|
* Mixin providing functionality specific to the Google Maps API v3. Note that
|
|
* this layer configures the google.maps.map object with the "disableDefaultUI"
|
|
* option set to true. Using UI controls that the Google Maps API provides is
|
|
* not supported by the OpenLayers API.
|
|
*/
|
|
OpenLayers.Layer.Google.v3 = {
|
|
|
|
/**
|
|
* Constant: DEFAULTS
|
|
* {Object} It is not recommended to change the properties set here. Note
|
|
* that Google.v3 layers only work when sphericalMercator is set to true.
|
|
*
|
|
* (code)
|
|
* {
|
|
* maxExtent: new OpenLayers.Bounds(
|
|
* -128 * 156543.03390625,
|
|
* -128 * 156543.03390625,
|
|
* 128 * 156543.03390625,
|
|
* 128 * 156543.03390625
|
|
* ),
|
|
* sphericalMercator: true,
|
|
* maxResolution: 156543.03390625,
|
|
* units: "m",
|
|
* projection: "EPSG:900913"
|
|
* }
|
|
* (end)
|
|
*/
|
|
DEFAULTS: {
|
|
maxExtent: new OpenLayers.Bounds(
|
|
-128 * 156543.03390625,
|
|
-128 * 156543.03390625,
|
|
128 * 156543.03390625,
|
|
128 * 156543.03390625
|
|
),
|
|
sphericalMercator: true,
|
|
maxResolution: 156543.03390625,
|
|
units: "m",
|
|
projection: "EPSG:900913"
|
|
},
|
|
|
|
/**
|
|
* APIProperty: animationEnabled
|
|
* {Boolean} If set to true, the transition between zoom levels will be
|
|
* animated (if supported by the GMaps API for the device used). Set to
|
|
* false to match the zooming experience of other layer types. Default
|
|
* is true. Note that the GMaps API does not give us control over zoom
|
|
* animation, so if set to false, when zooming, this will make the
|
|
* layer temporarily invisible, wait until GMaps reports the map being
|
|
* idle, and make it visible again. The result will be a blank layer
|
|
* for a few moments while zooming.
|
|
*/
|
|
animationEnabled: true,
|
|
|
|
/**
|
|
* Method: loadMapObject
|
|
* Load the GMap and register appropriate event listeners. If we can't
|
|
* load GMap2, then display a warning message.
|
|
*/
|
|
loadMapObject:function() {
|
|
if (!this.type) {
|
|
this.type = google.maps.MapTypeId.ROADMAP;
|
|
}
|
|
var mapObject;
|
|
var cache = OpenLayers.Layer.Google.cache[this.map.id];
|
|
if (cache) {
|
|
// there are already Google layers added to this map
|
|
mapObject = cache.mapObject;
|
|
// increment the layer count
|
|
++cache.count;
|
|
} else {
|
|
// this is the first Google layer for this map
|
|
|
|
var container = this.map.viewPortDiv;
|
|
var div = document.createElement("div");
|
|
div.id = this.map.id + "_GMapContainer";
|
|
div.style.position = "absolute";
|
|
div.style.width = "100%";
|
|
div.style.height = "100%";
|
|
container.appendChild(div);
|
|
|
|
// create GMap and shuffle elements
|
|
var center = this.map.getCenter();
|
|
mapObject = new google.maps.Map(div, {
|
|
center: center ?
|
|
new google.maps.LatLng(center.lat, center.lon) :
|
|
new google.maps.LatLng(0, 0),
|
|
zoom: this.map.getZoom() || 0,
|
|
mapTypeId: this.type,
|
|
disableDefaultUI: true,
|
|
keyboardShortcuts: false,
|
|
draggable: false,
|
|
disableDoubleClickZoom: true,
|
|
scrollwheel: false,
|
|
streetViewControl: false
|
|
});
|
|
|
|
// cache elements for use by any other google layers added to
|
|
// this same map
|
|
cache = {
|
|
mapObject: mapObject,
|
|
count: 1
|
|
};
|
|
OpenLayers.Layer.Google.cache[this.map.id] = cache;
|
|
this.repositionListener = google.maps.event.addListenerOnce(
|
|
mapObject,
|
|
"center_changed",
|
|
OpenLayers.Function.bind(this.repositionMapElements, this)
|
|
);
|
|
}
|
|
this.mapObject = mapObject;
|
|
this.setGMapVisibility(this.visibility);
|
|
},
|
|
|
|
/**
|
|
* Method: repositionMapElements
|
|
*
|
|
* Waits until powered by and terms of use elements are available and then
|
|
* moves them so they are clickable.
|
|
*/
|
|
repositionMapElements: function() {
|
|
|
|
// This is the first time any Google layer in this mapObject has been
|
|
// made visible. The mapObject needs to know the container size.
|
|
google.maps.event.trigger(this.mapObject, "resize");
|
|
|
|
var div = this.mapObject.getDiv().firstChild;
|
|
if (!div || div.childNodes.length < 3) {
|
|
this.repositionTimer = window.setTimeout(
|
|
OpenLayers.Function.bind(this.repositionMapElements, this),
|
|
250
|
|
);
|
|
return false;
|
|
}
|
|
|
|
var cache = OpenLayers.Layer.Google.cache[this.map.id];
|
|
var container = this.map.viewPortDiv;
|
|
|
|
// move the Map Data popup to the container, if any
|
|
while (div.lastChild.style.display == "none") {
|
|
container.appendChild(div.lastChild);
|
|
}
|
|
|
|
// move the ToS and branding stuff up to the container div
|
|
var termsOfUse = div.lastChild;
|
|
container.appendChild(termsOfUse);
|
|
termsOfUse.style.zIndex = "1100";
|
|
termsOfUse.style.bottom = "";
|
|
termsOfUse.className = "olLayerGoogleCopyright olLayerGoogleV3";
|
|
termsOfUse.style.display = "";
|
|
cache.termsOfUse = termsOfUse;
|
|
|
|
var poweredBy = div.lastChild;
|
|
container.appendChild(poweredBy);
|
|
poweredBy.style.zIndex = "1100";
|
|
poweredBy.style.bottom = "";
|
|
poweredBy.className = "olLayerGooglePoweredBy olLayerGoogleV3 gmnoprint";
|
|
poweredBy.style.display = "";
|
|
cache.poweredBy = poweredBy;
|
|
|
|
this.setGMapVisibility(this.visibility);
|
|
|
|
},
|
|
|
|
/**
|
|
* APIMethod: onMapResize
|
|
*/
|
|
onMapResize: function() {
|
|
if (this.visibility) {
|
|
google.maps.event.trigger(this.mapObject, "resize");
|
|
} else {
|
|
var cache = OpenLayers.Layer.Google.cache[this.map.id];
|
|
if (!cache.resized) {
|
|
var layer = this;
|
|
google.maps.event.addListenerOnce(this.mapObject, "tilesloaded", function() {
|
|
google.maps.event.trigger(layer.mapObject, "resize");
|
|
layer.moveTo(layer.map.getCenter(), layer.map.getZoom());
|
|
delete cache.resized;
|
|
});
|
|
}
|
|
cache.resized = true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Method: setGMapVisibility
|
|
* Display the GMap container and associated elements.
|
|
*
|
|
* Parameters:
|
|
* visible - {Boolean} Display the GMap elements.
|
|
*/
|
|
setGMapVisibility: function(visible) {
|
|
var cache = OpenLayers.Layer.Google.cache[this.map.id];
|
|
if (cache) {
|
|
var type = this.type;
|
|
var layers = this.map.layers;
|
|
var layer;
|
|
for (var i=layers.length-1; i>=0; --i) {
|
|
layer = layers[i];
|
|
if (layer instanceof OpenLayers.Layer.Google &&
|
|
layer.visibility === true && layer.inRange === true) {
|
|
type = layer.type;
|
|
visible = true;
|
|
break;
|
|
}
|
|
}
|
|
var container = this.mapObject.getDiv();
|
|
if (visible === true) {
|
|
this.mapObject.setMapTypeId(type);
|
|
container.style.left = "";
|
|
if (cache.termsOfUse && cache.termsOfUse.style) {
|
|
cache.termsOfUse.style.left = "";
|
|
cache.termsOfUse.style.display = "";
|
|
cache.poweredBy.style.display = "";
|
|
}
|
|
cache.displayed = this.id;
|
|
} else {
|
|
delete cache.displayed;
|
|
container.style.left = "-9999px";
|
|
if (cache.termsOfUse && cache.termsOfUse.style) {
|
|
cache.termsOfUse.style.display = "none";
|
|
// move ToU far to the left in addition to setting
|
|
// display to "none", because at the end of the GMap
|
|
// load sequence, display: none will be unset and ToU
|
|
// would be visible after loading a map with a google
|
|
// layer that is initially hidden.
|
|
cache.termsOfUse.style.left = "-9999px";
|
|
cache.poweredBy.style.display = "none";
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Method: getMapContainer
|
|
*
|
|
* Returns:
|
|
* {DOMElement} the GMap container's div
|
|
*/
|
|
getMapContainer: function() {
|
|
return this.mapObject.getDiv();
|
|
},
|
|
|
|
//
|
|
// TRANSLATION: MapObject Bounds <-> OpenLayers.Bounds
|
|
//
|
|
|
|
/**
|
|
* APIMethod: getMapObjectBoundsFromOLBounds
|
|
*
|
|
* Parameters:
|
|
* olBounds - {<OpenLayers.Bounds>}
|
|
*
|
|
* Returns:
|
|
* {Object} A MapObject Bounds, translated from olBounds
|
|
* Returns null if null value is passed in
|
|
*/
|
|
getMapObjectBoundsFromOLBounds: function(olBounds) {
|
|
var moBounds = null;
|
|
if (olBounds != null) {
|
|
var sw = this.sphericalMercator ?
|
|
this.inverseMercator(olBounds.bottom, olBounds.left) :
|
|
new OpenLayers.LonLat(olBounds.bottom, olBounds.left);
|
|
var ne = this.sphericalMercator ?
|
|
this.inverseMercator(olBounds.top, olBounds.right) :
|
|
new OpenLayers.LonLat(olBounds.top, olBounds.right);
|
|
moBounds = new google.maps.LatLngBounds(
|
|
new google.maps.LatLng(sw.lat, sw.lon),
|
|
new google.maps.LatLng(ne.lat, ne.lon)
|
|
);
|
|
}
|
|
return moBounds;
|
|
},
|
|
|
|
|
|
/************************************
|
|
* *
|
|
* MapObject Interface Controls *
|
|
* *
|
|
************************************/
|
|
|
|
|
|
// LonLat - Pixel Translation
|
|
|
|
/**
|
|
* APIMethod: getMapObjectLonLatFromMapObjectPixel
|
|
*
|
|
* Parameters:
|
|
* moPixel - {Object} MapObject Pixel format
|
|
*
|
|
* Returns:
|
|
* {Object} MapObject LonLat translated from MapObject Pixel
|
|
*/
|
|
getMapObjectLonLatFromMapObjectPixel: function(moPixel) {
|
|
var size = this.map.getSize();
|
|
var lon = this.getLongitudeFromMapObjectLonLat(this.mapObject.center);
|
|
var lat = this.getLatitudeFromMapObjectLonLat(this.mapObject.center);
|
|
var res = this.map.getResolution();
|
|
|
|
var delta_x = moPixel.x - (size.w / 2);
|
|
var delta_y = moPixel.y - (size.h / 2);
|
|
|
|
var lonlat = new OpenLayers.LonLat(
|
|
lon + delta_x * res,
|
|
lat - delta_y * res
|
|
);
|
|
|
|
if (this.wrapDateLine) {
|
|
lonlat = lonlat.wrapDateLine(this.maxExtent);
|
|
}
|
|
return this.getMapObjectLonLatFromLonLat(lonlat.lon, lonlat.lat);
|
|
},
|
|
|
|
/**
|
|
* APIMethod: getMapObjectPixelFromMapObjectLonLat
|
|
*
|
|
* Parameters:
|
|
* moLonLat - {Object} MapObject LonLat format
|
|
*
|
|
* Returns:
|
|
* {Object} MapObject Pixel transtlated from MapObject LonLat
|
|
*/
|
|
getMapObjectPixelFromMapObjectLonLat: function(moLonLat) {
|
|
var lon = this.getLongitudeFromMapObjectLonLat(moLonLat);
|
|
var lat = this.getLatitudeFromMapObjectLonLat(moLonLat);
|
|
var res = this.map.getResolution();
|
|
var extent = this.map.getExtent();
|
|
var px = new OpenLayers.Pixel(
|
|
(1/res * (lon - extent.left)),
|
|
(1/res * (extent.top - lat))
|
|
);
|
|
return this.getMapObjectPixelFromXY(px.x, px.y);
|
|
},
|
|
|
|
|
|
/**
|
|
* APIMethod: setMapObjectCenter
|
|
* Set the mapObject to the specified center and zoom
|
|
*
|
|
* Parameters:
|
|
* center - {Object} MapObject LonLat format
|
|
* zoom - {int} MapObject zoom format
|
|
*/
|
|
setMapObjectCenter: function(center, zoom) {
|
|
if (this.animationEnabled === false && zoom != this.mapObject.zoom) {
|
|
var mapContainer = this.getMapContainer();
|
|
google.maps.event.addListenerOnce(
|
|
this.mapObject,
|
|
"idle",
|
|
function() {
|
|
mapContainer.style.visibility = "";
|
|
}
|
|
);
|
|
mapContainer.style.visibility = "hidden";
|
|
}
|
|
this.mapObject.setOptions({
|
|
center: center,
|
|
zoom: zoom
|
|
});
|
|
},
|
|
|
|
|
|
// Bounds
|
|
|
|
/**
|
|
* APIMethod: getMapObjectZoomFromMapObjectBounds
|
|
*
|
|
* Parameters:
|
|
* moBounds - {Object} MapObject Bounds format
|
|
*
|
|
* Returns:
|
|
* {Object} MapObject Zoom for specified MapObject Bounds
|
|
*/
|
|
getMapObjectZoomFromMapObjectBounds: function(moBounds) {
|
|
return this.mapObject.getBoundsZoomLevel(moBounds);
|
|
},
|
|
|
|
/************************************
|
|
* *
|
|
* MapObject Primitives *
|
|
* *
|
|
************************************/
|
|
|
|
|
|
// LonLat
|
|
|
|
/**
|
|
* APIMethod: getMapObjectLonLatFromLonLat
|
|
*
|
|
* Parameters:
|
|
* lon - {Float}
|
|
* lat - {Float}
|
|
*
|
|
* Returns:
|
|
* {Object} MapObject LonLat built from lon and lat params
|
|
*/
|
|
getMapObjectLonLatFromLonLat: function(lon, lat) {
|
|
var gLatLng;
|
|
if(this.sphericalMercator) {
|
|
var lonlat = this.inverseMercator(lon, lat);
|
|
gLatLng = new google.maps.LatLng(lonlat.lat, lonlat.lon);
|
|
} else {
|
|
gLatLng = new google.maps.LatLng(lat, lon);
|
|
}
|
|
return gLatLng;
|
|
},
|
|
|
|
// Pixel
|
|
|
|
/**
|
|
* APIMethod: getMapObjectPixelFromXY
|
|
*
|
|
* Parameters:
|
|
* x - {Integer}
|
|
* y - {Integer}
|
|
*
|
|
* Returns:
|
|
* {Object} MapObject Pixel from x and y parameters
|
|
*/
|
|
getMapObjectPixelFromXY: function(x, y) {
|
|
return new google.maps.Point(x, y);
|
|
},
|
|
|
|
/**
|
|
* APIMethod: destroy
|
|
* Clean up this layer.
|
|
*/
|
|
destroy: function() {
|
|
if (this.repositionListener) {
|
|
google.maps.event.removeListener(this.repositionListener);
|
|
}
|
|
if (this.repositionTimer) {
|
|
window.clearTimeout(this.repositionTimer);
|
|
}
|
|
OpenLayers.Layer.Google.prototype.destroy.apply(this, arguments);
|
|
}
|
|
|
|
};
|
|
|
|
OpenLayers.Layer.Google.v3.repositionMapElements = function() {
|
|
// This is the first time any Google layer in this mapObject has been
|
|
// made visible. The mapObject needs to know the container size.
|
|
google.maps.event.trigger(this.mapObject, "resize");
|
|
|
|
var div = this.mapObject.getDiv().firstChild;
|
|
if (!div || div.childNodes.length < 3) {
|
|
this.repositionTimer = window.setTimeout(
|
|
OpenLayers.Function.bind(this.repositionMapElements, this),
|
|
250
|
|
);
|
|
return false;
|
|
}
|
|
|
|
var cache = OpenLayers.Layer.Google.cache[this.map.id];
|
|
var container = this.map.viewPortDiv;
|
|
|
|
// move the ToS and branding stuff up to the container div
|
|
// depends on value of zIndex, which is not robust
|
|
for (var i=div.children.length-1; i>=0; --i) {
|
|
if (div.children[i].style.zIndex == 1000001) {
|
|
var termsOfUse = div.children[i];
|
|
container.appendChild(termsOfUse);
|
|
termsOfUse.style.zIndex = "1100";
|
|
termsOfUse.style.bottom = "";
|
|
termsOfUse.className = "olLayerGoogleCopyright olLayerGoogleV3";
|
|
termsOfUse.style.display = "";
|
|
cache.termsOfUse = termsOfUse;
|
|
}
|
|
if (div.children[i].style.zIndex == 1000000) {
|
|
var poweredBy = div.children[i];
|
|
container.appendChild(poweredBy);
|
|
poweredBy.style.zIndex = "1100";
|
|
poweredBy.style.bottom = "";
|
|
poweredBy.className = "olLayerGooglePoweredBy olLayerGoogleV3 gmnoprint";
|
|
poweredBy.style.display = "";
|
|
cache.poweredBy = poweredBy;
|
|
}
|
|
if (div.children[i].style.zIndex == 10000002) {
|
|
container.appendChild(div.children[i]);
|
|
}
|
|
}
|
|
|
|
this.setGMapVisibility(this.visibility);
|
|
};
|
|
|
|
|