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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 Draggable - Events</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 <link rel="stylesheet" href="../demos.css">
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13 <style>
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14 #draggable { width: 16em; padding: 0 1em; }
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15 #draggable ul li { margin: 1em 0; padding: 0.5em 0; } * html #draggable ul li { height: 1%; }
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16 #draggable ul li span.ui-icon { float: left; }
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17 #draggable ul li span.count { font-weight: bold; }
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18 </style>
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19 <script>
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20 $(function() {
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21 var $start_counter = $( "#event-start" ),
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22 $drag_counter = $( "#event-drag" ),
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23 $stop_counter = $( "#event-stop" ),
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24 counts = [ 0, 0, 0 ];
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25
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26 $( "#draggable" ).draggable({
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27 start: function() {
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28 counts[ 0 ]++;
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29 updateCounterStatus( $start_counter, counts[ 0 ] );
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30 },
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31 drag: function() {
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32 counts[ 1 ]++;
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33 updateCounterStatus( $drag_counter, counts[ 1 ] );
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34 },
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35 stop: function() {
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36 counts[ 2 ]++;
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37 updateCounterStatus( $stop_counter, counts[ 2 ] );
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38 }
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39 });
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40
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41 function updateCounterStatus( $event_counter, new_count ) {
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42 // first update the status visually...
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43 if ( !$event_counter.hasClass( "ui-state-hover" ) ) {
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44 $event_counter.addClass( "ui-state-hover" )
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45 .siblings().removeClass( "ui-state-hover" );
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46 }
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47 // ...then update the numbers
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48 $( "span.count", $event_counter ).text( new_count );
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49 }
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50 });
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51 </script>
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52 </head>
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53 <body>
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54
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55 <div class="demo">
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56
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57 <div id="draggable" class="ui-widget ui-widget-content">
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58
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59 <p>Drag me to trigger the chain of events.</p>
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60
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61 <ul class="ui-helper-reset">
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62 <li id="event-start" class="ui-state-default ui-corner-all"><span class="ui-icon ui-icon-play"></span>"start" invoked <span class="count">0</span>x</li>
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63 <li id="event-drag" class="ui-state-default ui-corner-all"><span class="ui-icon ui-icon-arrow-4"></span>"drag" invoked <span class="count">0</span>x</li>
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64 <li id="event-stop" class="ui-state-default ui-corner-all"><span class="ui-icon ui-icon-stop"></span>"stop" invoked <span class="count">0</span>x</li>
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65 </ul>
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66 </div>
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67
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68 </div><!-- End demo -->
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69
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70
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71
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72 <div class="demo-description">
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73 <p>Layer functionality onto the draggable using the <code>start</code>, <code>drag</code>, and <code>stop</code> events. Start is fired at the start of the drag; drag during the drag; and stop when dragging stops.</p>
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74 </div><!-- End demo-description -->
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75
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76 </body>
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77 </html>
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