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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>jQuery UI Droppable - Prevent propagation</title>
<link type="text/css" href="../../themes/base/jquery.ui.all.css" rel="stylesheet" />
<script type="text/javascript" src="../../jquery-1.4.2.js"></script>
<script type="text/javascript" src="../../ui/jquery.ui.core.js"></script>
<script type="text/javascript" src="../../ui/jquery.ui.widget.js"></script>
<script type="text/javascript" src="../../ui/jquery.ui.mouse.js"></script>
<script type="text/javascript" src="../../ui/jquery.ui.draggable.js"></script>
<script type="text/javascript" src="../../ui/jquery.ui.droppable.js"></script>
<link type="text/css" href="../demos.css" rel="stylesheet" />
<style type="text/css">
#draggable { width: 100px; height: 40px; padding: 0.5em; float: left; margin: 10px 10px 10px 0; }
#droppable, #droppable2 { width: 230px; height: 120px; padding: 0.5em; float: left; margin: 10px; }
#droppable-inner, #droppable2-inner { width: 170px; height: 60px; padding: 0.5em; float: left; margin: 10px; }
</style>
<script type="text/javascript">
$(function() {
$("#draggable").draggable();
$("#droppable, #droppable-inner").droppable({
activeClass: 'ui-state-hover',
hoverClass: 'ui-state-active',
drop: function(event, ui) {
$(this).addClass('ui-state-highlight').find('> p').html('Dropped!');
return false;
}
});
$("#droppable2, #droppable2-inner").droppable({
greedy: true,
activeClass: 'ui-state-hover',
hoverClass: 'ui-state-active',
drop: function(event, ui) {
$(this).addClass('ui-state-highlight').find('> p').html('Dropped!');
}
});
});
</script>
</head>
<body>
<div class="demo">
<div id="draggable" class="ui-widget-content">
<p>Drag me to my target</p>
</div>
<div id="droppable" class="ui-widget-header">
<p>Outer droppable</p>
<div id="droppable-inner" class="ui-widget-header">
<p>Inner droppable (not greedy)</p>
</div>
</div>
<div id="droppable2" class="ui-widget-header">
<p>Outer droppable</p>
<div id="droppable2-inner" class="ui-widget-header">
<p>Inner droppable (greedy)</p>
</div>
</div>
</div><!-- End demo -->
<div class="demo-description">
<p>When working with nested droppables — for example, you may have an editable directory structure displayed as a tree, with folder and document nodes — the <code>greedy</code> option set to true prevents event propagation when a draggable is dropped on a child node (droppable).</p>
</div><!-- End demo-description -->
</body>
</html>
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