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-<!DOCTYPE html>
-<html>
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
- <meta name="apple-mobile-web-app-capable" content="yes">
- <title>OpenLayers Click Event Example</title>
-
- <link rel="stylesheet" href="../theme/default/style.css" type="text/css">
- <link rel="stylesheet" href="style.css" type="text/css">
- <script src="../lib/OpenLayers.js"></script>
- <script type="text/javascript">
- OpenLayers.Control.Click = OpenLayers.Class(OpenLayers.Control, {
- defaultHandlerOptions: {
- 'single': true,
- 'double': false,
- 'pixelTolerance': 0,
- 'stopSingle': false,
- 'stopDouble': false
- },
-
- initialize: function(options) {
- this.handlerOptions = OpenLayers.Util.extend(
- {}, this.defaultHandlerOptions
- );
- OpenLayers.Control.prototype.initialize.apply(
- this, arguments
- );
- this.handler = new OpenLayers.Handler.Click(
- this, {
- 'click': this.trigger
- }, this.handlerOptions
- );
- },
-
- trigger: function(e) {
- var lonlat = map.getLonLatFromPixel(e.xy);
- alert("You clicked near " + lonlat.lat + " N, " +
- + lonlat.lon + " E");
- }
-
- });
- var map;
- function init(){
- map = new OpenLayers.Map('map');
-
- var ol_wms = new OpenLayers.Layer.WMS( "OpenLayers WMS",
- "http://vmap0.tiles.osgeo.org/wms/vmap0?", {layers: 'basic'} );
-
- var jpl_wms = new OpenLayers.Layer.WMS( "NASA Global Mosaic",
- "http://t1.hypercube.telascience.org/cgi-bin/landsat7",
- {layers: "landsat7"});
-
- jpl_wms.setVisibility(false);
-
- map.addLayers([ol_wms, jpl_wms]);
- map.addControl(new OpenLayers.Control.LayerSwitcher());
- // map.setCenter(new OpenLayers.LonLat(0, 0), 0);
- map.zoomToMaxExtent();
-
- var click = new OpenLayers.Control.Click();
- map.addControl(click);
- click.activate();
-
- }
- </script>
- </head>
- <body onload="init()">
- <h1 id="title">Click Event Example</h1>
-
- <div id="tags">
- click control, double, doubleclick, double-click, event, events,
- propagation, light
- </div>
-
- <p id="shortdesc">
- This example shows the use of the click handler and
- getLonLatFromPixel functions to trigger events on mouse click.
- </p>
-
- <div id="map" class="smallmap"></div>
-
- <div id="docs">
- <p>Using the Click handler allows you to (for example) catch clicks
- without catching double clicks, something that standard browser
- events don't do for you. (Try double clicking: you'll zoom in,
- whereas using the browser click event, you would just get two
- alerts.) This example click control shows you how to use it.</p>
- </div>
- </body>
-</html>