Files
openlayers/examples/custom-control-point.html

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HTML

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<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 Custom Control Point Examle</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">
var lon = 5;
var lat = 40;
var zoom = 5;
var map, layer;
function init(){
map = new OpenLayers.Map( $('map') );
layer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
"http://vmap0.tiles.osgeo.org/wms/vmap0", {layers: 'basic'} );
var control = new OpenLayers.Control();
OpenLayers.Util.extend(control, {
draw: function () {
// this Handler.Point will intercept the shift-mousedown
// before Control.MouseDefault gets to see it
this.point = new OpenLayers.Handler.Point( control,
{"done": this.notice},
{keyMask: OpenLayers.Handler.MOD_SHIFT});
this.point.activate();
},
notice: function (bounds) {
document.getElementById('bounds').innerHTML = bounds;
}
});
map.addLayer(layer);
map.addControl(control);
map.setCenter(new OpenLayers.LonLat(lon, lat), zoom);
}
</script>
</head>
<body onload="init()">
<h1 id="title">Custom Control Point Example</h1>
<div id="tags">
control, point, cleanup
</div>
<p id="shortdesc">
Demonstrate the addition of a point reporting control to the OpenLayers window.
</p>
<div id="map" class="smallmap"></div>
<div id="bounds"></div>
<div id="docs"></div>
</body>
</html>