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authorChris Schlaeger <chris@linux.com>2014-08-12 21:56:44 +0200
committerChris Schlaeger <chris@linux.com>2014-08-12 21:56:44 +0200
commitea346a785dc1b3f7c156f6fc33da634e1f1a627b (patch)
treeaf67530553d20b6e82ad60fd79593e9c4abf5565 /misc/openlayers/lib/OpenLayers/Control/Attribution.js
parent59741cd535c47f25971bf8c32b25da25ceadc6d5 (diff)
downloadpostrunner-ea346a785dc1b3f7c156f6fc33da634e1f1a627b.zip
Adding jquery, flot and openlayers to be included with the GEM.v0.0.4
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+/* 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"
+});