7f6ffe8164
git-svn-id: http://svn.openlayers.org/trunk/openlayers@848 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
57 lines
1.9 KiB
JavaScript
57 lines
1.9 KiB
JavaScript
/* Copyright (c) 2006 MetaCarta, Inc., published under the BSD license.
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* See http://svn.openlayers.org/trunk/openlayers/license.txt for the full
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* text of the license. */
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// @require: OpenLayers/Control.js
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OpenLayers.Control.Permalink = Class.create();
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OpenLayers.Control.Permalink.prototype =
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Object.extend( new OpenLayers.Control(), {
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element: null,
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base: '',
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initialize: function(element, base) {
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OpenLayers.Control.prototype.initialize.apply(this, arguments);
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this.element = element;
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if (base) this.base = base;
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},
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draw: function() {
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OpenLayers.Control.prototype.draw.apply(this, arguments);
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var args = OpenLayers.Util.getArgs();
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if (args.lat && args.lon) {
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this.map.setCenter(
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new OpenLayers.LonLat(parseFloat(args.lon), parseFloat(args.lat))
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);
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}
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if (args.zoom) {
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this.map.zoomTo(parseInt(args.zoom));
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}
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if (!this.element) {
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this.element = document.createElement("a");
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this.div.style.right = "3px";
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this.div.style.bottom = "3px";
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this.div.style.left = "";
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this.div.style.top = "";
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this.div.style.display = "block";
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this.div.style.position = "absolute";
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this.element.style.fontSize="smaller";
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this.element.innerHTML = "Permalink";
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this.element.href="";
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this.div.appendChild(this.element);
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}
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this.map.events.register( 'moveend', this, this.updateLink);
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return this.div;
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},
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updateLink: function() {
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center = this.map.getCenter();
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zoom = this.map.getZoom();
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lat = Math.round(center.lat*100000)/100000;
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lon = Math.round(center.lon*100000)/100000;
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this.element.href = this.base+"?lat="+lat+"&lon="+lon+"&zoom="+zoom;
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},
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});
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