[76] | 1 | /* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for |
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| 2 | * full list of contributors). Published under the Clear BSD license. |
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| 3 | * See http://svn.openlayers.org/trunk/openlayers/license.txt for the |
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| 4 | * full text of the license. */ |
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| 5 | |
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| 6 | |
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| 7 | /** |
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| 8 | * @requires OpenLayers/Layer/SphericalMercator.js |
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| 9 | * @requires OpenLayers/Layer/EventPane.js |
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| 10 | * @requires OpenLayers/Layer/FixedZoomLevels.js |
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| 11 | */ |
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| 12 | |
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| 13 | /** |
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| 14 | * Class: OpenLayers.Layer.Google |
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| 15 | * |
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| 16 | * Inherits from: |
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| 17 | * - <OpenLayers.Layer.SphericalMercator> |
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| 18 | * - <OpenLayers.Layer.EventPane> |
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| 19 | * - <OpenLayers.Layer.FixedZoomLevels> |
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| 20 | */ |
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| 21 | OpenLayers.Layer.Google = OpenLayers.Class( |
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| 22 | OpenLayers.Layer.EventPane, |
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| 23 | OpenLayers.Layer.FixedZoomLevels, { |
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| 24 | |
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| 25 | /** |
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| 26 | * Constant: MIN_ZOOM_LEVEL |
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| 27 | * {Integer} 0 |
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| 28 | */ |
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| 29 | MIN_ZOOM_LEVEL: 0, |
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| 30 | |
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| 31 | /** |
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| 32 | * Constant: MAX_ZOOM_LEVEL |
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| 33 | * {Integer} 21 |
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| 34 | */ |
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| 35 | MAX_ZOOM_LEVEL: 21, |
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| 36 | |
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| 37 | /** |
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| 38 | * Constant: RESOLUTIONS |
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| 39 | * {Array(Float)} Hardcode these resolutions so that they are more closely |
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| 40 | * tied with the standard wms projection |
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| 41 | */ |
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| 42 | RESOLUTIONS: [ |
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| 43 | 1.40625, |
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| 44 | 0.703125, |
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| 45 | 0.3515625, |
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| 46 | 0.17578125, |
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| 47 | 0.087890625, |
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| 48 | 0.0439453125, |
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| 49 | 0.02197265625, |
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| 50 | 0.010986328125, |
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| 51 | 0.0054931640625, |
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| 52 | 0.00274658203125, |
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| 53 | 0.001373291015625, |
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| 54 | 0.0006866455078125, |
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| 55 | 0.00034332275390625, |
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| 56 | 0.000171661376953125, |
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| 57 | 0.0000858306884765625, |
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| 58 | 0.00004291534423828125, |
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| 59 | 0.00002145767211914062, |
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| 60 | 0.00001072883605957031, |
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| 61 | 0.00000536441802978515, |
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| 62 | 0.00000268220901489257, |
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| 63 | 0.0000013411045074462891, |
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| 64 | 0.00000067055225372314453 |
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| 65 | ], |
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| 66 | |
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| 67 | /** |
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| 68 | * APIProperty: type |
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| 69 | * {GMapType} |
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| 70 | */ |
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| 71 | type: null, |
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| 72 | |
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| 73 | /** |
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| 74 | * APIProperty: wrapDateLine |
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| 75 | * {Boolean} Allow user to pan forever east/west. Default is true. |
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| 76 | * Setting this to false only restricts panning if |
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| 77 | * <sphericalMercator> is true. |
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| 78 | */ |
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| 79 | wrapDateLine: true, |
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| 80 | |
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| 81 | /** |
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| 82 | * APIProperty: sphericalMercator |
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| 83 | * {Boolean} Should the map act as a mercator-projected map? This will |
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| 84 | * cause all interactions with the map to be in the actual map |
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| 85 | * projection, which allows support for vector drawing, overlaying |
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| 86 | * other maps, etc. |
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| 87 | */ |
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| 88 | sphericalMercator: false, |
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| 89 | |
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| 90 | /** |
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| 91 | * Property: version |
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| 92 | * {Number} The version of the Google Maps API |
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| 93 | */ |
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| 94 | version: null, |
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| 95 | |
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| 96 | /** |
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| 97 | * Constructor: OpenLayers.Layer.Google |
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| 98 | * |
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| 99 | * Parameters: |
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| 100 | * name - {String} A name for the layer. |
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| 101 | * options - {Object} An optional object whose properties will be set |
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| 102 | * on the layer. |
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| 103 | */ |
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| 104 | initialize: function(name, options) { |
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| 105 | options = options || {}; |
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| 106 | if(!options.version) { |
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| 107 | options.version = typeof GMap2 === "function" ? "2" : "3"; |
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| 108 | } |
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| 109 | var mixin = OpenLayers.Layer.Google["v" + |
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| 110 | options.version.replace(/\./g, "_")]; |
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| 111 | if (mixin) { |
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| 112 | OpenLayers.Util.applyDefaults(options, mixin); |
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| 113 | } else { |
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| 114 | throw "Unsupported Google Maps API version: " + options.version; |
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| 115 | } |
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| 116 | |
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| 117 | OpenLayers.Util.applyDefaults(options, mixin.DEFAULTS); |
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| 118 | if (options.maxExtent) { |
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| 119 | options.maxExtent = options.maxExtent.clone(); |
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| 120 | } |
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| 121 | |
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| 122 | OpenLayers.Layer.EventPane.prototype.initialize.apply(this, |
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| 123 | [name, options]); |
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| 124 | OpenLayers.Layer.FixedZoomLevels.prototype.initialize.apply(this, |
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| 125 | [name, options]); |
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| 126 | |
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| 127 | if (this.sphericalMercator) { |
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| 128 | OpenLayers.Util.extend(this, OpenLayers.Layer.SphericalMercator); |
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| 129 | this.initMercatorParameters(); |
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| 130 | } |
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| 131 | }, |
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| 132 | |
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| 133 | /** |
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| 134 | * Method: clone |
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| 135 | * Create a clone of this layer |
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| 136 | * |
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| 137 | * Returns: |
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| 138 | * {<OpenLayers.Layer.Google>} An exact clone of this layer |
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| 139 | */ |
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| 140 | clone: function() { |
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| 141 | /** |
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| 142 | * This method isn't intended to be called by a subclass and it |
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| 143 | * doesn't call the same method on the superclass. We don't call |
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| 144 | * the super's clone because we don't want properties that are set |
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| 145 | * on this layer after initialize (i.e. this.mapObject etc.). |
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| 146 | */ |
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| 147 | return new OpenLayers.Layer.Google( |
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| 148 | this.name, this.getOptions() |
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| 149 | ); |
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| 150 | }, |
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| 151 | |
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| 152 | /** |
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| 153 | * APIMethod: setVisibility |
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| 154 | * Set the visibility flag for the layer and hide/show & redraw |
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| 155 | * accordingly. Fire event unless otherwise specified |
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| 156 | * |
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| 157 | * Note that visibility is no longer simply whether or not the layer's |
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| 158 | * style.display is set to "block". Now we store a 'visibility' state |
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| 159 | * property on the layer class, this allows us to remember whether or |
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| 160 | * not we *desire* for a layer to be visible. In the case where the |
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| 161 | * map's resolution is out of the layer's range, this desire may be |
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| 162 | * subverted. |
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| 163 | * |
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| 164 | * Parameters: |
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| 165 | * visible - {Boolean} Display the layer (if in range) |
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| 166 | */ |
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| 167 | setVisibility: function(visible) { |
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| 168 | // sharing a map container, opacity has to be set per layer |
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| 169 | var opacity = this.opacity == null ? 1 : this.opacity; |
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| 170 | OpenLayers.Layer.EventPane.prototype.setVisibility.apply(this, arguments); |
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| 171 | this.setOpacity(opacity); |
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| 172 | }, |
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| 173 | |
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| 174 | /** |
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| 175 | * APIMethod: display |
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| 176 | * Hide or show the Layer |
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| 177 | * |
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| 178 | * Parameters: |
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| 179 | * display - {Boolean} |
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| 180 | */ |
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| 181 | display: function(visible) { |
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| 182 | if (!this._dragging) { |
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| 183 | this.setGMapVisibility(visible); |
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| 184 | } |
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| 185 | OpenLayers.Layer.EventPane.prototype.display.apply(this, arguments); |
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| 186 | }, |
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| 187 | |
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| 188 | /** |
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| 189 | * Method: moveTo |
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| 190 | * |
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| 191 | * Parameters: |
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| 192 | * bound - {<OpenLayers.Bounds>} |
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| 193 | * zoomChanged - {Boolean} Tells when zoom has changed, as layers have to |
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| 194 | * do some init work in that case. |
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| 195 | * dragging - {Boolean} |
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| 196 | */ |
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| 197 | moveTo: function(bounds, zoomChanged, dragging) { |
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| 198 | this._dragging = dragging; |
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| 199 | OpenLayers.Layer.EventPane.prototype.moveTo.apply(this, arguments); |
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| 200 | delete this._dragging; |
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| 201 | }, |
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| 202 | |
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| 203 | /** |
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| 204 | * APIMethod: setOpacity |
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| 205 | * Sets the opacity for the entire layer (all images) |
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| 206 | * |
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| 207 | * Parameter: |
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| 208 | * opacity - {Float} |
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| 209 | */ |
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| 210 | setOpacity: function(opacity) { |
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| 211 | if (opacity !== this.opacity) { |
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| 212 | if (this.map != null) { |
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| 213 | this.map.events.triggerEvent("changelayer", { |
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| 214 | layer: this, |
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| 215 | property: "opacity" |
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| 216 | }); |
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| 217 | } |
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| 218 | this.opacity = opacity; |
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| 219 | } |
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| 220 | // Though this layer's opacity may not change, we're sharing a container |
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| 221 | // and need to update the opacity for the entire container. |
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| 222 | if (this.getVisibility()) { |
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| 223 | var container = this.getMapContainer(); |
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| 224 | OpenLayers.Util.modifyDOMElement( |
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| 225 | container, null, null, null, null, null, null, opacity |
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| 226 | ); |
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| 227 | } |
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| 228 | }, |
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| 229 | |
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| 230 | /** |
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| 231 | * APIMethod: destroy |
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| 232 | * Clean up this layer. |
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| 233 | */ |
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| 234 | destroy: function() { |
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| 235 | /** |
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| 236 | * We have to override this method because the event pane destroy |
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| 237 | * deletes the mapObject reference before removing this layer from |
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| 238 | * the map. |
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| 239 | */ |
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| 240 | if (this.map) { |
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| 241 | this.setGMapVisibility(false); |
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| 242 | var cache = OpenLayers.Layer.Google.cache[this.map.id]; |
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| 243 | if (cache && cache.count <= 1) { |
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| 244 | this.removeGMapElements(); |
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| 245 | } |
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| 246 | } |
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| 247 | OpenLayers.Layer.EventPane.prototype.destroy.apply(this, arguments); |
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| 248 | }, |
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| 249 | |
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| 250 | /** |
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| 251 | * Method: removeGMapElements |
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| 252 | * Remove all elements added to the dom. This should only be called if |
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| 253 | * this is the last of the Google layers for the given map. |
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| 254 | */ |
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| 255 | removeGMapElements: function() { |
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| 256 | var cache = OpenLayers.Layer.Google.cache[this.map.id]; |
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| 257 | if (cache) { |
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| 258 | // remove shared elements from dom |
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| 259 | var container = this.mapObject && this.getMapContainer(); |
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| 260 | if (container && container.parentNode) { |
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| 261 | container.parentNode.removeChild(container); |
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| 262 | } |
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| 263 | var termsOfUse = cache.termsOfUse; |
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| 264 | if (termsOfUse && termsOfUse.parentNode) { |
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| 265 | termsOfUse.parentNode.removeChild(termsOfUse); |
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| 266 | } |
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| 267 | var poweredBy = cache.poweredBy; |
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| 268 | if (poweredBy && poweredBy.parentNode) { |
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| 269 | poweredBy.parentNode.removeChild(poweredBy); |
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| 270 | } |
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| 271 | } |
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| 272 | }, |
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| 273 | |
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| 274 | /** |
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| 275 | * APIMethod: removeMap |
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| 276 | * On being removed from the map, also remove termsOfUse and poweredBy divs |
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| 277 | * |
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| 278 | * Parameters: |
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| 279 | * map - {<OpenLayers.Map>} |
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| 280 | */ |
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| 281 | removeMap: function(map) { |
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| 282 | // hide layer before removing |
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| 283 | if (this.visibility && this.mapObject) { |
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| 284 | this.setGMapVisibility(false); |
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| 285 | } |
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| 286 | // check to see if last Google layer in this map |
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| 287 | var cache = OpenLayers.Layer.Google.cache[map.id]; |
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| 288 | if (cache) { |
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| 289 | if (cache.count <= 1) { |
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| 290 | this.removeGMapElements(); |
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| 291 | delete OpenLayers.Layer.Google.cache[map.id]; |
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| 292 | } else { |
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| 293 | // decrement the layer count |
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| 294 | --cache.count; |
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| 295 | } |
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| 296 | } |
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| 297 | // remove references to gmap elements |
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| 298 | delete this.termsOfUse; |
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| 299 | delete this.poweredBy; |
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| 300 | delete this.mapObject; |
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| 301 | delete this.dragObject; |
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| 302 | OpenLayers.Layer.EventPane.prototype.removeMap.apply(this, arguments); |
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| 303 | }, |
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| 304 | |
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| 305 | // |
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| 306 | // TRANSLATION: MapObject Bounds <-> OpenLayers.Bounds |
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| 307 | // |
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| 308 | |
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| 309 | /** |
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| 310 | * APIMethod: getOLBoundsFromMapObjectBounds |
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| 311 | * |
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| 312 | * Parameters: |
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| 313 | * moBounds - {Object} |
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| 314 | * |
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| 315 | * Returns: |
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| 316 | * {<OpenLayers.Bounds>} An <OpenLayers.Bounds>, translated from the |
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| 317 | * passed-in MapObject Bounds. |
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| 318 | * Returns null if null value is passed in. |
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| 319 | */ |
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| 320 | getOLBoundsFromMapObjectBounds: function(moBounds) { |
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| 321 | var olBounds = null; |
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| 322 | if (moBounds != null) { |
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| 323 | var sw = moBounds.getSouthWest(); |
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| 324 | var ne = moBounds.getNorthEast(); |
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| 325 | if (this.sphericalMercator) { |
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| 326 | sw = this.forwardMercator(sw.lng(), sw.lat()); |
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| 327 | ne = this.forwardMercator(ne.lng(), ne.lat()); |
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| 328 | } else { |
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| 329 | sw = new OpenLayers.LonLat(sw.lng(), sw.lat()); |
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| 330 | ne = new OpenLayers.LonLat(ne.lng(), ne.lat()); |
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| 331 | } |
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| 332 | olBounds = new OpenLayers.Bounds(sw.lon, |
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| 333 | sw.lat, |
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| 334 | ne.lon, |
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| 335 | ne.lat ); |
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| 336 | } |
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| 337 | return olBounds; |
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| 338 | }, |
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| 339 | |
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| 340 | /** |
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| 341 | * APIMethod: getWarningHTML |
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| 342 | * |
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| 343 | * Returns: |
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| 344 | * {String} String with information on why layer is broken, how to get |
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| 345 | * it working. |
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| 346 | */ |
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| 347 | getWarningHTML:function() { |
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| 348 | return OpenLayers.i18n("googleWarning"); |
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| 349 | }, |
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| 350 | |
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| 351 | |
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| 352 | /************************************ |
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| 353 | * * |
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| 354 | * MapObject Interface Controls * |
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| 355 | * * |
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| 356 | ************************************/ |
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| 357 | |
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| 358 | |
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| 359 | // Get&Set Center, Zoom |
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| 360 | |
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| 361 | /** |
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| 362 | * APIMethod: getMapObjectCenter |
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| 363 | * |
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| 364 | * Returns: |
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| 365 | * {Object} The mapObject's current center in Map Object format |
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| 366 | */ |
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| 367 | getMapObjectCenter: function() { |
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| 368 | return this.mapObject.getCenter(); |
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| 369 | }, |
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| 370 | |
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| 371 | /** |
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| 372 | * APIMethod: getMapObjectZoom |
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| 373 | * |
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| 374 | * Returns: |
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| 375 | * {Integer} The mapObject's current zoom, in Map Object format |
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| 376 | */ |
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| 377 | getMapObjectZoom: function() { |
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| 378 | return this.mapObject.getZoom(); |
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| 379 | }, |
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| 380 | |
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| 381 | |
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| 382 | /************************************ |
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| 383 | * * |
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| 384 | * MapObject Primitives * |
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| 385 | * * |
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| 386 | ************************************/ |
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| 387 | |
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| 388 | |
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| 389 | // LonLat |
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| 390 | |
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| 391 | /** |
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| 392 | * APIMethod: getLongitudeFromMapObjectLonLat |
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| 393 | * |
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| 394 | * Parameters: |
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| 395 | * moLonLat - {Object} MapObject LonLat format |
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| 396 | * |
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| 397 | * Returns: |
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| 398 | * {Float} Longitude of the given MapObject LonLat |
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| 399 | */ |
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| 400 | getLongitudeFromMapObjectLonLat: function(moLonLat) { |
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| 401 | return this.sphericalMercator ? |
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| 402 | this.forwardMercator(moLonLat.lng(), moLonLat.lat()).lon : |
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| 403 | moLonLat.lng(); |
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| 404 | }, |
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| 405 | |
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| 406 | /** |
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| 407 | * APIMethod: getLatitudeFromMapObjectLonLat |
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| 408 | * |
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| 409 | * Parameters: |
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| 410 | * moLonLat - {Object} MapObject LonLat format |
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| 411 | * |
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| 412 | * Returns: |
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| 413 | * {Float} Latitude of the given MapObject LonLat |
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| 414 | */ |
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| 415 | getLatitudeFromMapObjectLonLat: function(moLonLat) { |
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| 416 | var lat = this.sphericalMercator ? |
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| 417 | this.forwardMercator(moLonLat.lng(), moLonLat.lat()).lat : |
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| 418 | moLonLat.lat(); |
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| 419 | return lat; |
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| 420 | }, |
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| 421 | |
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| 422 | // Pixel |
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| 423 | |
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| 424 | /** |
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| 425 | * APIMethod: getXFromMapObjectPixel |
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| 426 | * |
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| 427 | * Parameters: |
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| 428 | * moPixel - {Object} MapObject Pixel format |
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| 429 | * |
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| 430 | * Returns: |
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| 431 | * {Integer} X value of the MapObject Pixel |
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| 432 | */ |
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| 433 | getXFromMapObjectPixel: function(moPixel) { |
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| 434 | return moPixel.x; |
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| 435 | }, |
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| 436 | |
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| 437 | /** |
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| 438 | * APIMethod: getYFromMapObjectPixel |
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| 439 | * |
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| 440 | * Parameters: |
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| 441 | * moPixel - {Object} MapObject Pixel format |
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| 442 | * |
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| 443 | * Returns: |
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| 444 | * {Integer} Y value of the MapObject Pixel |
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| 445 | */ |
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| 446 | getYFromMapObjectPixel: function(moPixel) { |
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| 447 | return moPixel.y; |
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| 448 | }, |
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| 449 | |
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| 450 | CLASS_NAME: "OpenLayers.Layer.Google" |
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| 451 | }); |
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| 452 | |
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| 453 | /** |
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| 454 | * Property: OpenLayers.Layer.Google.cache |
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| 455 | * {Object} Cache for elements that should only be created once per map. |
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| 456 | */ |
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| 457 | OpenLayers.Layer.Google.cache = {}; |
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| 458 | |
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| 459 | |
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| 460 | /** |
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| 461 | * Constant: OpenLayers.Layer.Google.v2 |
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| 462 | * |
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| 463 | * Mixin providing functionality specific to the Google Maps API v2. |
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| 464 | */ |
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| 465 | OpenLayers.Layer.Google.v2 = { |
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| 466 | |
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| 467 | /** |
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| 468 | * Property: termsOfUse |
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| 469 | * {DOMElement} Div for Google's copyright and terms of use link |
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| 470 | */ |
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| 471 | termsOfUse: null, |
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| 472 | |
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| 473 | /** |
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| 474 | * Property: poweredBy |
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| 475 | * {DOMElement} Div for Google's powered by logo and link |
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| 476 | */ |
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| 477 | poweredBy: null, |
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| 478 | |
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| 479 | /** |
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| 480 | * Property: dragObject |
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| 481 | * {GDraggableObject} Since 2.93, Google has exposed the ability to get |
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| 482 | * the maps GDraggableObject. We can now use this for smooth panning |
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| 483 | */ |
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| 484 | dragObject: null, |
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| 485 | |
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| 486 | /** |
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| 487 | * Method: loadMapObject |
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| 488 | * Load the GMap and register appropriate event listeners. If we can't |
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| 489 | * load GMap2, then display a warning message. |
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| 490 | */ |
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| 491 | loadMapObject:function() { |
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| 492 | if (!this.type) { |
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| 493 | this.type = G_NORMAL_MAP; |
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| 494 | } |
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| 495 | var mapObject, termsOfUse, poweredBy; |
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| 496 | var cache = OpenLayers.Layer.Google.cache[this.map.id]; |
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| 497 | if (cache) { |
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| 498 | // there are already Google layers added to this map |
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| 499 | mapObject = cache.mapObject; |
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| 500 | termsOfUse = cache.termsOfUse; |
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| 501 | poweredBy = cache.poweredBy; |
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| 502 | // increment the layer count |
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| 503 | ++cache.count; |
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| 504 | } else { |
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| 505 | // this is the first Google layer for this map |
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| 506 | |
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| 507 | var container = this.map.viewPortDiv; |
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| 508 | var div = document.createElement("div"); |
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| 509 | div.id = this.map.id + "_GMap2Container"; |
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| 510 | div.style.position = "absolute"; |
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| 511 | div.style.width = "100%"; |
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| 512 | div.style.height = "100%"; |
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| 513 | container.appendChild(div); |
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| 514 | |
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| 515 | // create GMap and shuffle elements |
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| 516 | try { |
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| 517 | mapObject = new GMap2(div); |
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| 518 | |
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| 519 | // move the ToS and branding stuff up to the container div |
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| 520 | termsOfUse = div.lastChild; |
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| 521 | container.appendChild(termsOfUse); |
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| 522 | termsOfUse.style.zIndex = "1100"; |
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| 523 | termsOfUse.style.right = ""; |
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| 524 | termsOfUse.style.bottom = ""; |
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| 525 | termsOfUse.className = "olLayerGoogleCopyright"; |
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| 526 | |
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| 527 | poweredBy = div.lastChild; |
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| 528 | container.appendChild(poweredBy); |
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| 529 | poweredBy.style.zIndex = "1100"; |
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| 530 | poweredBy.style.right = ""; |
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| 531 | poweredBy.style.bottom = ""; |
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| 532 | poweredBy.className = "olLayerGooglePoweredBy gmnoprint"; |
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| 533 | |
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| 534 | } catch (e) { |
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| 535 | throw(e); |
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| 536 | } |
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| 537 | // cache elements for use by any other google layers added to |
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| 538 | // this same map |
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| 539 | OpenLayers.Layer.Google.cache[this.map.id] = { |
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| 540 | mapObject: mapObject, |
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| 541 | termsOfUse: termsOfUse, |
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| 542 | poweredBy: poweredBy, |
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| 543 | count: 1 |
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| 544 | }; |
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| 545 | } |
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| 546 | |
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| 547 | this.mapObject = mapObject; |
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| 548 | this.termsOfUse = termsOfUse; |
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| 549 | this.poweredBy = poweredBy; |
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| 550 | |
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| 551 | // ensure this layer type is one of the mapObject types |
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| 552 | if (OpenLayers.Util.indexOf(this.mapObject.getMapTypes(), |
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| 553 | this.type) === -1) { |
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| 554 | this.mapObject.addMapType(this.type); |
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| 555 | } |
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| 556 | |
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| 557 | //since v 2.93 getDragObject is now available. |
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| 558 | if(typeof mapObject.getDragObject == "function") { |
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| 559 | this.dragObject = mapObject.getDragObject(); |
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| 560 | } else { |
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| 561 | this.dragPanMapObject = null; |
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| 562 | } |
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| 563 | |
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| 564 | if(this.isBaseLayer === false) { |
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| 565 | this.setGMapVisibility(this.div.style.display !== "none"); |
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| 566 | } |
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| 567 | |
---|
| 568 | }, |
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| 569 | |
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| 570 | /** |
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| 571 | * APIMethod: onMapResize |
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| 572 | */ |
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| 573 | onMapResize: function() { |
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| 574 | // workaround for resizing of invisible or not yet fully loaded layers |
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| 575 | // where GMap2.checkResize() does not work. We need to load the GMap |
---|
| 576 | // for the old div size, then checkResize(), and then call |
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| 577 | // layer.moveTo() to trigger GMap.setCenter() (which will finish |
---|
| 578 | // the GMap initialization). |
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| 579 | if(this.visibility && this.mapObject.isLoaded()) { |
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| 580 | this.mapObject.checkResize(); |
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| 581 | } else { |
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| 582 | if(!this._resized) { |
---|
| 583 | var layer = this; |
---|
| 584 | var handle = GEvent.addListener(this.mapObject, "load", function() { |
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| 585 | GEvent.removeListener(handle); |
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| 586 | delete layer._resized; |
---|
| 587 | layer.mapObject.checkResize(); |
---|
| 588 | layer.moveTo(layer.map.getCenter(), layer.map.getZoom()); |
---|
| 589 | }); |
---|
| 590 | } |
---|
| 591 | this._resized = true; |
---|
| 592 | } |
---|
| 593 | }, |
---|
| 594 | |
---|
| 595 | /** |
---|
| 596 | * Method: setGMapVisibility |
---|
| 597 | * Display the GMap container and associated elements. |
---|
| 598 | * |
---|
| 599 | * Parameters: |
---|
| 600 | * visible - {Boolean} Display the GMap elements. |
---|
| 601 | */ |
---|
| 602 | setGMapVisibility: function(visible) { |
---|
| 603 | var cache = OpenLayers.Layer.Google.cache[this.map.id]; |
---|
| 604 | if (cache) { |
---|
| 605 | var container = this.mapObject.getContainer(); |
---|
| 606 | if (visible === true) { |
---|
| 607 | this.mapObject.setMapType(this.type); |
---|
| 608 | container.style.display = ""; |
---|
| 609 | this.termsOfUse.style.left = ""; |
---|
| 610 | this.termsOfUse.style.display = ""; |
---|
| 611 | this.poweredBy.style.display = ""; |
---|
| 612 | cache.displayed = this.id; |
---|
| 613 | } else { |
---|
| 614 | if (cache.displayed === this.id) { |
---|
| 615 | delete cache.displayed; |
---|
| 616 | } |
---|
| 617 | if (!cache.displayed) { |
---|
| 618 | container.style.display = "none"; |
---|
| 619 | this.termsOfUse.style.display = "none"; |
---|
| 620 | // move ToU far to the left in addition to setting display |
---|
| 621 | // to "none", because at the end of the GMap2 load |
---|
| 622 | // sequence, display: none will be unset and ToU would be |
---|
| 623 | // visible after loading a map with a google layer that is |
---|
| 624 | // initially hidden. |
---|
| 625 | this.termsOfUse.style.left = "-9999px"; |
---|
| 626 | this.poweredBy.style.display = "none"; |
---|
| 627 | } |
---|
| 628 | } |
---|
| 629 | } |
---|
| 630 | }, |
---|
| 631 | |
---|
| 632 | /** |
---|
| 633 | * Method: getMapContainer |
---|
| 634 | * |
---|
| 635 | * Returns: |
---|
| 636 | * {DOMElement} the GMap container's div |
---|
| 637 | */ |
---|
| 638 | getMapContainer: function() { |
---|
| 639 | return this.mapObject.getContainer(); |
---|
| 640 | }, |
---|
| 641 | |
---|
| 642 | // |
---|
| 643 | // TRANSLATION: MapObject Bounds <-> OpenLayers.Bounds |
---|
| 644 | // |
---|
| 645 | |
---|
| 646 | /** |
---|
| 647 | * APIMethod: getMapObjectBoundsFromOLBounds |
---|
| 648 | * |
---|
| 649 | * Parameters: |
---|
| 650 | * olBounds - {<OpenLayers.Bounds>} |
---|
| 651 | * |
---|
| 652 | * Returns: |
---|
| 653 | * {Object} A MapObject Bounds, translated from olBounds |
---|
| 654 | * Returns null if null value is passed in |
---|
| 655 | */ |
---|
| 656 | getMapObjectBoundsFromOLBounds: function(olBounds) { |
---|
| 657 | var moBounds = null; |
---|
| 658 | if (olBounds != null) { |
---|
| 659 | var sw = this.sphericalMercator ? |
---|
| 660 | this.inverseMercator(olBounds.bottom, olBounds.left) : |
---|
| 661 | new OpenLayers.LonLat(olBounds.bottom, olBounds.left); |
---|
| 662 | var ne = this.sphericalMercator ? |
---|
| 663 | this.inverseMercator(olBounds.top, olBounds.right) : |
---|
| 664 | new OpenLayers.LonLat(olBounds.top, olBounds.right); |
---|
| 665 | moBounds = new GLatLngBounds(new GLatLng(sw.lat, sw.lon), |
---|
| 666 | new GLatLng(ne.lat, ne.lon)); |
---|
| 667 | } |
---|
| 668 | return moBounds; |
---|
| 669 | }, |
---|
| 670 | |
---|
| 671 | |
---|
| 672 | /************************************ |
---|
| 673 | * * |
---|
| 674 | * MapObject Interface Controls * |
---|
| 675 | * * |
---|
| 676 | ************************************/ |
---|
| 677 | |
---|
| 678 | |
---|
| 679 | // Get&Set Center, Zoom |
---|
| 680 | |
---|
| 681 | /** |
---|
| 682 | * APIMethod: setMapObjectCenter |
---|
| 683 | * Set the mapObject to the specified center and zoom |
---|
| 684 | * |
---|
| 685 | * Parameters: |
---|
| 686 | * center - {Object} MapObject LonLat format |
---|
| 687 | * zoom - {int} MapObject zoom format |
---|
| 688 | */ |
---|
| 689 | setMapObjectCenter: function(center, zoom) { |
---|
| 690 | this.mapObject.setCenter(center, zoom); |
---|
| 691 | }, |
---|
| 692 | |
---|
| 693 | /** |
---|
| 694 | * APIMethod: dragPanMapObject |
---|
| 695 | * |
---|
| 696 | * Parameters: |
---|
| 697 | * dX - {Integer} |
---|
| 698 | * dY - {Integer} |
---|
| 699 | */ |
---|
| 700 | dragPanMapObject: function(dX, dY) { |
---|
| 701 | this.dragObject.moveBy(new GSize(-dX, dY)); |
---|
| 702 | }, |
---|
| 703 | |
---|
| 704 | |
---|
| 705 | // LonLat - Pixel Translation |
---|
| 706 | |
---|
| 707 | /** |
---|
| 708 | * APIMethod: getMapObjectLonLatFromMapObjectPixel |
---|
| 709 | * |
---|
| 710 | * Parameters: |
---|
| 711 | * moPixel - {Object} MapObject Pixel format |
---|
| 712 | * |
---|
| 713 | * Returns: |
---|
| 714 | * {Object} MapObject LonLat translated from MapObject Pixel |
---|
| 715 | */ |
---|
| 716 | getMapObjectLonLatFromMapObjectPixel: function(moPixel) { |
---|
| 717 | return this.mapObject.fromContainerPixelToLatLng(moPixel); |
---|
| 718 | }, |
---|
| 719 | |
---|
| 720 | /** |
---|
| 721 | * APIMethod: getMapObjectPixelFromMapObjectLonLat |
---|
| 722 | * |
---|
| 723 | * Parameters: |
---|
| 724 | * moLonLat - {Object} MapObject LonLat format |
---|
| 725 | * |
---|
| 726 | * Returns: |
---|
| 727 | * {Object} MapObject Pixel transtlated from MapObject LonLat |
---|
| 728 | */ |
---|
| 729 | getMapObjectPixelFromMapObjectLonLat: function(moLonLat) { |
---|
| 730 | return this.mapObject.fromLatLngToContainerPixel(moLonLat); |
---|
| 731 | }, |
---|
| 732 | |
---|
| 733 | |
---|
| 734 | // Bounds |
---|
| 735 | |
---|
| 736 | /** |
---|
| 737 | * APIMethod: getMapObjectZoomFromMapObjectBounds |
---|
| 738 | * |
---|
| 739 | * Parameters: |
---|
| 740 | * moBounds - {Object} MapObject Bounds format |
---|
| 741 | * |
---|
| 742 | * Returns: |
---|
| 743 | * {Object} MapObject Zoom for specified MapObject Bounds |
---|
| 744 | */ |
---|
| 745 | getMapObjectZoomFromMapObjectBounds: function(moBounds) { |
---|
| 746 | return this.mapObject.getBoundsZoomLevel(moBounds); |
---|
| 747 | }, |
---|
| 748 | |
---|
| 749 | /************************************ |
---|
| 750 | * * |
---|
| 751 | * MapObject Primitives * |
---|
| 752 | * * |
---|
| 753 | ************************************/ |
---|
| 754 | |
---|
| 755 | |
---|
| 756 | // LonLat |
---|
| 757 | |
---|
| 758 | /** |
---|
| 759 | * APIMethod: getMapObjectLonLatFromLonLat |
---|
| 760 | * |
---|
| 761 | * Parameters: |
---|
| 762 | * lon - {Float} |
---|
| 763 | * lat - {Float} |
---|
| 764 | * |
---|
| 765 | * Returns: |
---|
| 766 | * {Object} MapObject LonLat built from lon and lat params |
---|
| 767 | */ |
---|
| 768 | getMapObjectLonLatFromLonLat: function(lon, lat) { |
---|
| 769 | var gLatLng; |
---|
| 770 | if(this.sphericalMercator) { |
---|
| 771 | var lonlat = this.inverseMercator(lon, lat); |
---|
| 772 | gLatLng = new GLatLng(lonlat.lat, lonlat.lon); |
---|
| 773 | } else { |
---|
| 774 | gLatLng = new GLatLng(lat, lon); |
---|
| 775 | } |
---|
| 776 | return gLatLng; |
---|
| 777 | }, |
---|
| 778 | |
---|
| 779 | // Pixel |
---|
| 780 | |
---|
| 781 | /** |
---|
| 782 | * APIMethod: getMapObjectPixelFromXY |
---|
| 783 | * |
---|
| 784 | * Parameters: |
---|
| 785 | * x - {Integer} |
---|
| 786 | * y - {Integer} |
---|
| 787 | * |
---|
| 788 | * Returns: |
---|
| 789 | * {Object} MapObject Pixel from x and y parameters |
---|
| 790 | */ |
---|
| 791 | getMapObjectPixelFromXY: function(x, y) { |
---|
| 792 | return new GPoint(x, y); |
---|
| 793 | } |
---|
| 794 | |
---|
| 795 | }; |
---|