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author | Chris Schlaeger <chris@linux.com> | 2014-08-12 21:56:44 +0200 |
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committer | Chris Schlaeger <chris@linux.com> | 2014-08-12 21:56:44 +0200 |
commit | ea346a785dc1b3f7c156f6fc33da634e1f1a627b (patch) | |
tree | af67530553d20b6e82ad60fd79593e9c4abf5565 /misc/openlayers/lib/OpenLayers/Control/Attribution.js | |
parent | 59741cd535c47f25971bf8c32b25da25ceadc6d5 (diff) | |
download | postrunner-ea346a785dc1b3f7c156f6fc33da634e1f1a627b.zip |
Adding jquery, flot and openlayers to be included with the GEM.v0.0.4
Diffstat (limited to 'misc/openlayers/lib/OpenLayers/Control/Attribution.js')
-rw-r--r-- | misc/openlayers/lib/OpenLayers/Control/Attribution.js | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/misc/openlayers/lib/OpenLayers/Control/Attribution.js b/misc/openlayers/lib/OpenLayers/Control/Attribution.js new file mode 100644 index 0000000..e5ea1ce --- /dev/null +++ b/misc/openlayers/lib/OpenLayers/Control/Attribution.js @@ -0,0 +1,104 @@ +/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for + * full list of contributors). Published under the 2-clause BSD license. + * See license.txt in the OpenLayers distribution or repository for the + * full text of the license. */ + +/** + * @requires OpenLayers/Control.js + */ + +/** + * Class: OpenLayers.Control.Attribution + * The attribution control adds attribution from layers to the map display. + * It uses 'attribution' property of each layer. + * + * Inherits from: + * - <OpenLayers.Control> + */ +OpenLayers.Control.Attribution = + OpenLayers.Class(OpenLayers.Control, { + + /** + * APIProperty: separator + * {String} String used to separate layers. + */ + separator: ", ", + + /** + * APIProperty: template + * {String} Template for the attribution. This has to include the substring + * "${layers}", which will be replaced by the layer specific + * attributions, separated by <separator>. The default is "${layers}". + */ + template: "${layers}", + + /** + * Constructor: OpenLayers.Control.Attribution + * + * Parameters: + * options - {Object} Options for control. + */ + + /** + * Method: destroy + * Destroy control. + */ + destroy: function() { + this.map.events.un({ + "removelayer": this.updateAttribution, + "addlayer": this.updateAttribution, + "changelayer": this.updateAttribution, + "changebaselayer": this.updateAttribution, + scope: this + }); + + OpenLayers.Control.prototype.destroy.apply(this, arguments); + }, + + /** + * Method: draw + * Initialize control. + * + * Returns: + * {DOMElement} A reference to the DIV DOMElement containing the control + */ + draw: function() { + OpenLayers.Control.prototype.draw.apply(this, arguments); + + this.map.events.on({ + 'changebaselayer': this.updateAttribution, + 'changelayer': this.updateAttribution, + 'addlayer': this.updateAttribution, + 'removelayer': this.updateAttribution, + scope: this + }); + this.updateAttribution(); + + return this.div; + }, + + /** + * Method: updateAttribution + * Update attribution string. + */ + updateAttribution: function() { + var attributions = []; + if (this.map && this.map.layers) { + for(var i=0, len=this.map.layers.length; i<len; i++) { + var layer = this.map.layers[i]; + if (layer.attribution && layer.getVisibility()) { + // add attribution only if attribution text is unique + if (OpenLayers.Util.indexOf( + attributions, layer.attribution) === -1) { + attributions.push( layer.attribution ); + } + } + } + this.div.innerHTML = OpenLayers.String.format(this.template, { + layers: attributions.join(this.separator) + }); + } + }, + + CLASS_NAME: "OpenLayers.Control.Attribution" +}); |