Mega Code Archive
This example shows the use of the drag shim when dragging nodes over other troublesome nodes
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>Using the Drag Shim</title>
<style type="text/css">
/*margin and padding on body element
can introduce errors in determining
element position and are not recommended;
we turn them off as a foundation for YUI
CSS treatments. */
body {
margin:0;
padding:0;
}
</style>
<link rel="stylesheet" type="text/css" href="yui_2.7.0b-lib/fonts/fonts-min.css" />
<script type="text/javascript" src="yui_2.7.0b-lib/yahoo-dom-event/yahoo-dom-event.js"></script>
<script type="text/javascript" src="yui_2.7.0b-lib/dragdrop/dragdrop-min.js"></script>
<!--there is no custom header content for this example-->
</head>
<body class=" yui-skin-sam">
<h1>Using the Drag Shim</h1>
<div class="exampleIntro">
<p>This example shows the use of the drag shim when dragging nodes over other troublesome nodes.</p>
</div>
<!--BEGIN SOURCE CODE FOR EXAMPLE -->
<style>
#demo {
height: 100px;
width: 100px;
border: 1px solid black;
cursor: move;
float: right;
}
#ifrm {
width: 400px;
height: 300px;
}
</style>
<p>Try dragging the proxy element over the iframe below, in most browsers this will not happen. Now click the <code>Shim off</code> button and drag again. Now you can drag over the iframe.</p>
<p>You can see the shim by clicking the <code>Debug Off</code> button.</p>
<p><button id="shim" value="off">Shim Off</button> <button id="debugShim" value="off" disabled>Debug Off</button></p>
<div id="demo">Drag Me</div>
<iframe id="ifrm" src="yui_2.7.0b-assets/dragdrop-assets/blank.htm"></iframe>
<script type="text/javascript">
(function() {
var Dom = YAHOO.util.Dom,
Event = YAHOO.util.Event;
Event.onDOMReady(function() {
//Create the DDProxy Instance
var dd = new YAHOO.util.DDProxy('demo', {
//Don't resize the frame
resizeFrame: false
});
//On startDrag let's change the proxy's size and color
dd.on('startDragEvent', function() {
Dom.setStyle(this.getDragEl(), 'height', '20px');
Dom.setStyle(this.getDragEl(), 'width', '100px');
Dom.setStyle(this.getDragEl(), 'backgroundColor', 'blue');
Dom.setStyle(this.getDragEl(), 'color', 'white');
this.getDragEl().innerHTML = 'Custom Proxy';
});
Event.on('shim', 'click', function(e) {
var tar = Event.getTarget(e);
var value = tar.value;
if (value == 'off' || value == 'Shim Off') {
//Turn on the shim
dd.useShim = true;
tar.value = 'on';
tar.innerHTML = 'Shim On';
Dom.get('debugShim').disabled = false;
} else {
//Turn off the shim
dd.useShim = false;
tar.value = 'off';
tar.innerHTML = 'Shim Off';
Dom.get('debugShim').disabled = true;
}
});
Event.on('debugShim', 'click', function(e) {
var tar = Event.getTarget(e);
var value = tar.value;
if (value == 'off' || value == 'Debug Off') {
//Turn on debugging the shim
YAHOO.util.DDM._debugShim = true;
tar.value = 'on';
tar.innerHTML = 'Debug On';
} else {
//Turn off debugging the shim
YAHOO.util.DDM._debugShim = false;
tar.value = 'off';
tar.innerHTML = 'Debug Off';
}
});
});
})();
</script>
<!--END SOURCE CODE FOR EXAMPLE -->
</body>
</html>
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yui_2.7.0b.zip( 4,431 k)
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