jQuery UI Draggable - Visual feedback
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<!doctype html>
<html lang="en">
<head>
<title>jQuery UI Draggable - Visual feedback</title>
<link type="text/css" href="js/themes/base/ui.all.css" rel="stylesheet" />
<script type="text/javascript" src="js/jquery-1.3.2.js"></script>
<script type="text/javascript" src="js/ui/ui.core.js"></script>
<script type="text/javascript" src="js/ui/ui.draggable.js"></script>
<link type="text/css" href="js/demos.css" rel="stylesheet" />
<style type="text/css">
#draggable, #draggable2, #draggable3, #set div { width: 90px; height: 90px; padding: 0.5em; float: left; margin: 0 10px 10px 0; }
#draggable, #draggable2, #draggable3 { margin-bottom:20px; }
#set { clear:both; float:left; width: 368px; height: 120px; }
p { clear:both; margin:0; padding:1em 0; }
</style>
<script type="text/javascript">
$(function() {
$("#draggable").draggable({ helper: 'original' });
$("#draggable2").draggable({ opacity: 0.7, helper: 'clone' });
$("#draggable3").draggable({
cursor: 'move',
cursorAt: { top: -12, left: -20 },
helper: function(event) {
return $('<div class="ui-widget-header">I\'m a custom helper</div>');
}
});
$("#set div").draggable({ stack: { group: '#set div', min: 1 } });
});
</script>
</head>
<body>
<div class="demo">
<h3 class="docs">With helpers:</h3>
<div id="draggable" class="ui-widget-content">
<p>Original</p>
</div>
<div id="draggable2" class="ui-widget-content">
<p>Semi-transparent clone</p>
</div>
<div id="draggable3" class="ui-widget-content">
<p>Custom helper (in combination with cursorAt)</p>
</div>
<h3 class="docs">Stacked:</h3>
<div id="set">
<div class="ui-widget-content">
<p>We are draggables..</p>
</div>
<div class="ui-widget-content">
<p>..whose z-indexes are controlled automatically..</p>
</div>
<div class="ui-widget-content">
<p>..with the stack option.</p>
</div>
</div>
</div><!-- End demo -->
<div class="demo-description">
<p>Provide feedback to users as they drag an object in the form of a helper. The <code>helper</code> option accepts the values 'original' (the draggable object moves with the cursor), 'clone' (a duplicate of the draggable moves with the cursor), or a function that returns a DOM element (that element is shown near the cursor during drag). Control the helper's transparency with the <code>opacity</code> option.</p>
<p>To clarify which draggable is in play, bring the draggable in motion to front. Use the <code>zIndex</code> option to set a higher z-index for the helper, if in play, or use the <code>stack</code> option to ensure that the last item dragged will appear on top of others in the same group on drag stop.</p>
</div><!-- End demo-description -->
</body>
</html>
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