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jQuery UI Droppable - Prevent propagation

  
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  Dual licensed under the MIT (MIT-LICENSE.txt)
  and GPL (GPL-LICENSE.txt) licenses.
 
 
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<!doctype html>
<html lang="en">
<head>
  <title>jQuery UI Droppable - Prevent propagation</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>
  <script type="text/javascript" src="js/ui/ui.droppable.js"></script>
  <link type="text/css" href="js/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 &#8212; for example, you may have an editable directory structure displayed as a tree, with folder and document nodes &#8212; 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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