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<!doctype html>
< html lang = "en" >
< head >
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< title > jQuery UI Draggable - Visual feedback< / title >
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< link type = "text/css" href = "../../themes/base/ui.all.css" rel = "stylesheet" / >
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< script type = "text/javascript" src = "../../jquery-1.3.2.js" > < / script >
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< script type = "text/javascript" src = "../../ui/ui.core.js" > < / script >
< script type = "text/javascript" src = "../../ui/ui.draggable.js" > < / script >
< link type = "text/css" href = "../demos.css" rel = "stylesheet" / >
< style type = "text/css" >
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#draggable, #draggable2, #draggable3, #set div { width: 90px; height: 90px; padding: 0.5em; float: left; margin: 0 10px 10px 0; }
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#draggable, #draggable2, #draggable3 { margin-bottom:20px; }
#set { clear:both; float:left; width: 368px; height: 120px; }
p { clear:both; margin:0; padding:1em 0; }
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< / style >
< script type = "text/javascript" >
$(function() {
$("#draggable").draggable({ helper: 'original' });
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$("#draggable2").draggable({ opacity: 0.7, helper: 'clone' });
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$("#draggable3").draggable({
cursor: 'move',
cursorAt: { top: -12, left: -20 },
helper: function(event) {
return $('< div class = "ui-widget-header" > I\'m a custom helper< / div > ');
}
});
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$("#set div").draggable({ stack: { group: '#set div', min: 1 } });
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});
< / script >
< / head >
< body >
< div class = "demo" >
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< h3 class = "docs" > With helpers:< / h3 >
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< div id = "draggable" class = "ui-widget-content" >
< p > Original< / p >
< / div >
< div id = "draggable2" class = "ui-widget-content" >
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< p > Semi-transparent clone< / p >
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< / div >
< div id = "draggable3" class = "ui-widget-content" >
< p > Custom helper (in combination with cursorAt)< / p >
< / div >
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< h3 class = "docs" > Stacked:< / h3 >
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< div id = "set" >
< div class = "ui-widget-content" >
< p > We are draggables..< / p >
< / div >
< div class = "ui-widget-content" >
< p > ..whose z-indexes are controlled automatically..< / p >
< / div >
< div class = "ui-widget-content" >
< p > ..with the stack option.< / p >
< / div >
< / div >
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< / div > <!-- End demo -->
< div class = "demo-description" >
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< p > Provide feedback to users as they drag an object in the form of a helper. The < code > helper< / code > option accepts the values 'original' (the draggable object moves with the cursor), 'clone' (a duplicate of the draggable moves with the cursor), or a function that returns a DOM element (that element is shown near the cursor during drag). Control the helper's transparency with the < code > opacity< / code > option.< / p >
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< p > To clarify which draggable is in play, bring the draggable in motion to front. Use the < code > zIndex< / code > option to set a higher z-index for the helper, if in play, or use the < code > stack< / code > option to ensure that the last item dragged will appear on top of others in the same group on drag stop.< / p >
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< / div > <!-- End demo - description -->
< / body >
< / html >
