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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 Draggable - Events</title>
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<link rel="stylesheet" href="../../themes/base/jquery.ui.all.css">
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<script src="../../jquery-1.4.3.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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<link rel="stylesheet" href="../demos.css">
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<style>
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#draggable { width: 16em; padding: 0 1em; }
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#draggable ul li { margin: 1em 0; padding: 0.5em 0; } * html #draggable ul li { height: 1%; }
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#draggable ul li span.ui-icon { float: left; }
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#draggable ul li span.count { font-weight: bold; }
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</style>
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<script>
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$(function() {
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var $start_counter = $( "#event-start" ),
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$drag_counter = $( "#event-drag" ),
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$stop_counter = $( "#event-stop" ),
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counts = [ 0, 0, 0 ];
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$( "#draggable" ).draggable({
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start: function() {
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counts[ 0 ]++;
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updateCounterStatus( $start_counter, counts[ 0 ] );
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},
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drag: function() {
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counts[ 1 ]++;
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updateCounterStatus( $drag_counter, counts[ 1 ] );
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},
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stop: function() {
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counts[ 2 ]++;
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updateCounterStatus( $stop_counter, counts[ 2 ] );
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}
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});
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function updateCounterStatus( $event_counter, new_count ) {
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// first update the status visually...
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if ( !$event_counter.hasClass( "ui-state-hover" ) ) {
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$event_counter.addClass( "ui-state-hover" )
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.siblings().removeClass( "ui-state-hover" );
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}
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// ...then update the numbers
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$( "span.count", $event_counter ).text( new_count );
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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 ui-widget-content">
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<p>Drag me to trigger the chain of events.</p>
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<ul class="ui-helper-reset">
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<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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<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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<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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</ul>
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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>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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</div><!-- End demo-description -->
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</body>
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</html>
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