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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 Droppable - Prevent propagation</title>
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<link rel="stylesheet" href="../../themes/base/jquery.ui.all.css">
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<script src="../../jquery-1.4.2.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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<script src="../../ui/jquery.ui.droppable.js"></script>
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<link rel="stylesheet" href="../demos.css">
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<style>
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#draggable { width: 100px; height: 40px; padding: 0.5em; float: left; margin: 10px 10px 10px 0; }
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#droppable, #droppable2 { width: 230px; height: 120px; padding: 0.5em; float: left; margin: 10px; }
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#droppable-inner, #droppable2-inner { width: 170px; height: 60px; padding: 0.5em; float: left; margin: 10px; }
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</style>
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<script>
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$(function() {
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$( "#draggable" ).draggable();
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$( "#droppable, #droppable-inner" ).droppable({
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activeClass: "ui-state-hover",
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hoverClass: "ui-state-active",
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drop: function( event, ui ) {
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$( this )
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.addClass( "ui-state-highlight" )
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.find( "> p" )
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.html( "Dropped!" );
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return false;
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}
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});
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$( "#droppable2, #droppable2-inner" ).droppable({
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greedy: true,
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activeClass: "ui-state-hover",
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hoverClass: "ui-state-active",
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drop: function( event, ui ) {
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$( this )
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.addClass( "ui-state-highlight" )
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.find( "> p" )
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.html( "Dropped!" );
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}
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});
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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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<div id="draggable" class="ui-widget-content">
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<p>Drag me to my target</p>
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</div>
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<div id="droppable" class="ui-widget-header">
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<p>Outer droppable</p>
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<div id="droppable-inner" class="ui-widget-header">
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<p>Inner droppable (not greedy)</p>
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</div>
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</div>
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<div id="droppable2" class="ui-widget-header">
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<p>Outer droppable</p>
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<div id="droppable2-inner" class="ui-widget-header">
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<p>Inner droppable (greedy)</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>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>
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</div><!-- End demo-description -->
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</body>
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</html>
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