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Diffstat (limited to 'misc/openlayers/examples/click.html')
-rw-r--r-- | misc/openlayers/examples/click.html | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/misc/openlayers/examples/click.html b/misc/openlayers/examples/click.html new file mode 100644 index 0000000..5b6a025 --- /dev/null +++ b/misc/openlayers/examples/click.html @@ -0,0 +1,91 @@ +<!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> |