7f34868fe2
git-svn-id: http://svn.openlayers.org/trunk/openlayers@11158 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
154 lines
5.4 KiB
HTML
154 lines
5.4 KiB
HTML
<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;" />
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<meta name="apple-mobile-web-app-capable" content="yes" />
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<title>OpenLayers Event Handling</title>
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<link rel="stylesheet" href="style.css" type="text/css" />
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<style type="text/css">
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#panel {
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margin: 5px;
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height: 30px;
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width: 200px;
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}
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#panel div {
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float: left;
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margin-left: 5px;
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width: 25px;
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height: 25px;
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border: 1px solid gray;
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}
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#output {
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position: absolute;
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left: 550px;
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top: 4em;
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width: 350px;
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height: 400px;
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}
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div.blueItemInactive {
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background-color: #aac;
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}
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div.blueItemActive {
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background-color: #33c;
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}
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div.orangeItemInactive {
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background-color: #ca6;
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}
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div.orangeItemActive {
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background-color: #ea0;
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}
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div.greenItemInactive {
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background-color: #aca;
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}
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div.greenItemActive {
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background-color: #3c3;
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}
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</style>
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<script src="../lib/OpenLayers.js"></script>
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<script type="text/javascript">
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var map, panel;
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function init(){
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// define custom map event listeners
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function mapEvent(event) {
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log(event.type);
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}
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function mapBaseLayerChanged(event) {
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log(event.type + " " + event.layer.name);
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}
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function mapLayerChanged(event) {
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log(event.type + " " + event.layer.name + " " + event.property);
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}
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map = new OpenLayers.Map('map', {
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eventListeners: {
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"moveend": mapEvent,
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"zoomend": mapEvent,
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"changelayer": mapLayerChanged,
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"changebaselayer": mapBaseLayerChanged
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}
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});
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panel = new OpenLayers.Control.Panel(
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{div: document.getElementById("panel")}
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);
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// define custom event listeners
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function toolActivate(event) {
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log("activate " + event.object.displayClass);
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}
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function toolDeactivate(event) {
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log("deactivate " + event.object.displayClass);
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}
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// Multiple objects can share listeners with the same scope
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var toolListeners = {
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"activate": toolActivate,
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"deactivate": toolDeactivate
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};
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var blue = new OpenLayers.Control({
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type: OpenLayers.Control.TYPE_TOGGLE,
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eventListeners: toolListeners,
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displayClass: "blue"
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});
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var orange = new OpenLayers.Control({
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type: OpenLayers.Control.TYPE_TOGGLE,
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eventListeners: toolListeners,
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displayClass: "orange"
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});
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var green = new OpenLayers.Control({
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type: OpenLayers.Control.TYPE_TOGGLE,
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eventListeners: toolListeners,
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displayClass: "green"
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});
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// add buttons to a panel
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panel.addControls([blue, orange, green]);
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map.addControl(panel);
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var vmap = new OpenLayers.Layer.WMS(
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"OpenLayers WMS",
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"http://vmap0.tiles.osgeo.org/wms/vmap0",
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{layers: 'basic'}
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);
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var landsat = new OpenLayers.Layer.WMS(
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"NASA Global Mosaic",
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"http://t1.hypercube.telascience.org/cgi-bin/landsat7",
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{layers: "landsat7"}
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);
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var nexrad = new OpenLayers.Layer.WMS(
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"Nexrad",
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"http://mesonet.agron.iastate.edu/cgi-bin/wms/nexrad/n0r.cgi",
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{layers:"nexrad-n0r-wmst", transparent: "TRUE", format: 'image/png'},
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{isBaseLayer: false}
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);
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map.addLayers([vmap, landsat, nexrad]);
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map.addControl(new OpenLayers.Control.LayerSwitcher());
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map.zoomToMaxExtent();
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}
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function log(msg) {
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document.getElementById("output").innerHTML += msg + "\n";
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}
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</script>
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</head>
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<body onload="init()">
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<h1 id="title">Event Handling</h1>
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<div id="tags">
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event, events, handler, listener, cleanup
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</div>
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<p id="shortdesc">
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Demonstrating various styles of event handling in OpenLayers.
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</p>
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<div id="map" class="smallmap"></div>
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<div id="panel"></div>
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<textarea id="output"></textarea>
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<div id="docs"></div>
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</body>
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</html>
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