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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>jQuery UI Draggable - Visual feedback</title>
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<link rel="stylesheet" href="../../themes/base/jquery.ui.all.css">
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<script src="../../jquery-1.4.3.js"></script>
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<script src="../../ui/jquery.ui.core.js"></script>
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<script src="../../ui/jquery.ui.widget.js"></script>
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<script src="../../ui/jquery.ui.mouse.js"></script>
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<script src="../../ui/jquery.ui.draggable.js"></script>
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<link rel="stylesheet" href="../demos.css">
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<style>
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#draggable, #draggable2, #draggable3, #set div { width: 90px; height: 90px; padding: 0.5em; float: left; margin: 0 10px 10px 0; }
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#draggable, #draggable2, #draggable3 { margin-bottom:20px; }
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#set { clear:both; float:left; width: 368px; height: 120px; }
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p { clear:both; margin:0; padding:1em 0; }
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</style>
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<script>
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$(function() {
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$( "#draggable" ).draggable({ helper: "original" });
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$( "#draggable2" ).draggable({ opacity: 0.7, helper: "clone" });
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$( "#draggable3" ).draggable({
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cursor: "move",
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cursorAt: { top: -12, left: -20 },
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helper: function( event ) {
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return $( "<div class='ui-widget-header'>I'm a custom helper</div>" );
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}
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});
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$( "#set div" ).draggable({ stack: "#set div" });
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});
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</script>
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</head>
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<body>
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<div class="demo">
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<h3 class="docs">With helpers:</h3>
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<div id="draggable" class="ui-widget-content">
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<p>Original</p>
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</div>
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<div id="draggable2" class="ui-widget-content">
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<p>Semi-transparent clone</p>
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</div>
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<div id="draggable3" class="ui-widget-content">
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<p>Custom helper (in combination with cursorAt)</p>
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</div>
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<h3 class="docs">Stacked:</h3>
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<div id="set">
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<div class="ui-widget-content">
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<p>We are draggables..</p>
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</div>
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<div class="ui-widget-content">
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<p>..whose z-indexes are controlled automatically..</p>
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</div>
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<div class="ui-widget-content">
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<p>..with the stack option.</p>
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</div>
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</div>
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</div><!-- End demo -->
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<div class="demo-description">
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<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>
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<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>
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</div><!-- End demo-description -->
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</body>
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</html>
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