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1 <!DOCTYPE html>
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2 <html lang="en">
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3 <head>
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4 <meta charset="utf-8">
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5 <title>jQuery UI Droppable - Prevent propagation</title>
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6 <link rel="stylesheet" href="../../themes/base/jquery.ui.all.css">
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7 <script src="../../jquery-1.5.1.js"></script>
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8 <script src="../../ui/jquery.ui.core.js"></script>
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9 <script src="../../ui/jquery.ui.widget.js"></script>
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10 <script src="../../ui/jquery.ui.mouse.js"></script>
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11 <script src="../../ui/jquery.ui.draggable.js"></script>
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12 <script src="../../ui/jquery.ui.droppable.js"></script>
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13 <link rel="stylesheet" href="../demos.css">
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14 <style>
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15 #draggable { width: 100px; height: 40px; padding: 0.5em; float: left; margin: 10px 10px 10px 0; }
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16 #droppable, #droppable2 { width: 230px; height: 120px; padding: 0.5em; float: left; margin: 10px; }
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17 #droppable-inner, #droppable2-inner { width: 170px; height: 60px; padding: 0.5em; float: left; margin: 10px; }
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18 </style>
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19 <script>
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20 $(function() {
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21 $( "#draggable" ).draggable();
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22
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23 $( "#droppable, #droppable-inner" ).droppable({
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24 activeClass: "ui-state-hover",
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25 hoverClass: "ui-state-active",
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26 drop: function( event, ui ) {
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27 $( this )
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28 .addClass( "ui-state-highlight" )
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29 .find( "> p" )
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30 .html( "Dropped!" );
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31 return false;
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32 }
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33 });
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34
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35 $( "#droppable2, #droppable2-inner" ).droppable({
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36 greedy: true,
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37 activeClass: "ui-state-hover",
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38 hoverClass: "ui-state-active",
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39 drop: function( event, ui ) {
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40 $( this )
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41 .addClass( "ui-state-highlight" )
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42 .find( "> p" )
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43 .html( "Dropped!" );
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44 }
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45 });
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46 });
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47 </script>
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48 </head>
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49 <body>
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50
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51 <div class="demo">
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52
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53 <div id="draggable" class="ui-widget-content">
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54 <p>Drag me to my target</p>
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55 </div>
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56
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57 <div id="droppable" class="ui-widget-header">
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58 <p>Outer droppable</p>
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59 <div id="droppable-inner" class="ui-widget-header">
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60 <p>Inner droppable (not greedy)</p>
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61 </div>
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62 </div>
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63
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64 <div id="droppable2" class="ui-widget-header">
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65 <p>Outer droppable</p>
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66 <div id="droppable2-inner" class="ui-widget-header">
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67 <p>Inner droppable (greedy)</p>
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68 </div>
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69 </div>
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70
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71 </div><!-- End demo -->
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72
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73
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74
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75 <div class="demo-description">
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76 <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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77 </div><!-- End demo-description -->
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78
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79 </body>
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80 </html>
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