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<!doctype html>
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< html lang = "en" >
< head >
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< meta charset = "utf-8" >
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< title > jQuery UI Draggable - Visual feedback< / title >
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< link rel = "stylesheet" href = "../../themes/base/jquery.ui.all.css" >
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< script src = "../../jquery-1.8.2.js" > < / script >
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< script src = "../../ui/jquery.ui.core.js" > < / script >
< script src = "../../ui/jquery.ui.widget.js" > < / script >
< script src = "../../ui/jquery.ui.mouse.js" > < / script >
< script src = "../../ui/jquery.ui.draggable.js" > < / script >
< link rel = "stylesheet" href = "../demos.css" >
< style >
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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 >
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< script >
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$(function() {
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$( "#draggable" ).draggable({ helper: "original" });
$( "#draggable2" ).draggable({ opacity: 0.7, helper: "clone" });
$( "#draggable3" ).draggable({
cursor: "move",
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cursorAt: { top: -12, left: -20 },
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helper: function( event ) {
return $( "< div class = 'ui-widget-header' > I'm a custom helper< / div > " );
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}
});
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$( "#set div" ).draggable({ stack: "#set div" });
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});
< / script >
< / head >
< body >
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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 class = "demo-description" >
< 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 >
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< / body >
< / html >
