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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 Slider - Slider scrollbar</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.slider.js"></script>
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	<link rel="stylesheet" href="../demos.css">
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	<style>
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	#demo-frame > div.demo { padding: 10px !important; }
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	.scroll-pane { overflow: auto; width: 99%; float:left; }
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	.scroll-content { width: 2440px; float: left; }
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	.scroll-content-item { width: 100px; height: 100px; float: left; margin: 10px; font-size: 3em; line-height: 96px; text-align: center; }
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	* html .scroll-content-item { display: inline; } /* IE6 float double margin bug */
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	.scroll-bar-wrap { clear: left; padding: 0 4px 0 2px; margin: 0 -1px -1px -1px; }
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	.scroll-bar-wrap .ui-slider { background: none; border:0; height: 2em; margin: 0 auto;  }
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	.scroll-bar-wrap .ui-handle-helper-parent { position: relative; width: 100%; height: 100%; margin: 0 auto; }
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	.scroll-bar-wrap .ui-slider-handle { top:.2em; height: 1.5em; }
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	.scroll-bar-wrap .ui-slider-handle .ui-icon { margin: -8px auto 0; position: relative; top: 50%; }
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	</style>
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	<script>
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	$(function() {
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		//scrollpane parts
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		var scrollPane = $( ".scroll-pane" ),
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			scrollContent = $( ".scroll-content" );
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		//build slider
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		var scrollbar = $( ".scroll-bar" ).slider({
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			slide: function( event, ui ) {
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				if ( scrollContent.width() > scrollPane.width() ) {
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					scrollContent.css( "margin-left", Math.round(
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						ui.value / 100 * ( scrollPane.width() - scrollContent.width() )
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					) + "px" );
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				} else {
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					scrollContent.css( "margin-left", 0 );
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				}
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			}
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		});
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		//append icon to handle
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		var handleHelper = scrollbar.find( ".ui-slider-handle" )
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		.mousedown(function() {
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			scrollbar.width( handleHelper.width() );
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		})
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		.mouseup(function() {
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			scrollbar.width( "100%" );
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		})
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		.append( "<span class='ui-icon ui-icon-grip-dotted-vertical'></span>" )
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		.wrap( "<div class='ui-handle-helper-parent'></div>" ).parent();
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		//change overflow to hidden now that slider handles the scrolling
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		scrollPane.css( "overflow", "hidden" );
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		//size scrollbar and handle proportionally to scroll distance
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		function sizeScrollbar() {
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			var remainder = scrollContent.width() - scrollPane.width();
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			var proportion = remainder / scrollContent.width();
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			var handleSize = scrollPane.width() - ( proportion * scrollPane.width() );
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			scrollbar.find( ".ui-slider-handle" ).css({
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				width: handleSize,
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				"margin-left": -handleSize / 2
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			});
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			handleHelper.width( "" ).width( scrollbar.width() - handleSize );
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		}
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		//reset slider value based on scroll content position
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		function resetValue() {
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			var remainder = scrollPane.width() - scrollContent.width();
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			var leftVal = scrollContent.css( "margin-left" ) === "auto" ? 0 :
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				parseInt( scrollContent.css( "margin-left" ) );
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			var percentage = Math.round( leftVal / remainder * 100 );
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			scrollbar.slider( "value", percentage );
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		}
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		//if the slider is 100% and window gets larger, reveal content
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		function reflowContent() {
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				var showing = scrollContent.width() + parseInt( scrollContent.css( "margin-left" ), 10 );
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				var gap = scrollPane.width() - showing;
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				if ( gap > 0 ) {
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					scrollContent.css( "margin-left", parseInt( scrollContent.css( "margin-left" ), 10 ) + gap );
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				}
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		}
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		//change handle position on window resize
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		$( window ).resize(function() {
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			resetValue();
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			sizeScrollbar();
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			reflowContent();
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		});
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		//init scrollbar size
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		setTimeout( sizeScrollbar, 10 );//safari wants a timeout
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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 class="scroll-pane ui-widget ui-widget-header ui-corner-all">
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	<div class="scroll-content">
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		<div class="scroll-content-item ui-widget-header">1</div>
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		<div class="scroll-content-item ui-widget-header">2</div>
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		<div class="scroll-content-item ui-widget-header">3</div>
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		<div class="scroll-content-item ui-widget-header">4</div>
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		<div class="scroll-content-item ui-widget-header">5</div>
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		<div class="scroll-content-item ui-widget-header">6</div>
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		<div class="scroll-content-item ui-widget-header">7</div>
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		<div class="scroll-content-item ui-widget-header">8</div>
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		<div class="scroll-content-item ui-widget-header">9</div>
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		<div class="scroll-content-item ui-widget-header">10</div>
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		<div class="scroll-content-item ui-widget-header">11</div>
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		<div class="scroll-content-item ui-widget-header">12</div>
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		<div class="scroll-content-item ui-widget-header">13</div>
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		<div class="scroll-content-item ui-widget-header">14</div>
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		<div class="scroll-content-item ui-widget-header">15</div>
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		<div class="scroll-content-item ui-widget-header">16</div>
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		<div class="scroll-content-item ui-widget-header">17</div>
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		<div class="scroll-content-item ui-widget-header">18</div>
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		<div class="scroll-content-item ui-widget-header">19</div>
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		<div class="scroll-content-item ui-widget-header">20</div>
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	</div>
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	<div class="scroll-bar-wrap ui-widget-content ui-corner-bottom">
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		<div class="scroll-bar"></div>
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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>Use a slider to manipulate the positioning of content on the page. In this case, it acts as a scrollbar with the potential to capture values if needed.</p>
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</div><!-- End demo-description -->
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</body>
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</html>
(10-10/13)