jquery-ui/demos/sortable/tolerance.html

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<!doctype html>
<html lang="en">
<head>
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<title>jQuery UI Sortable - Drop tolerance (stickiness)</title>
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<link type="text/css" href="../../themes/base/ui.all.css" rel="stylesheet" />
<script type="text/javascript" src="../../jquery-1.3.js"></script>
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<script type="text/javascript" src="../../ui/ui.core.js"></script>
<script type="text/javascript" src="../../ui/ui.sortable.js"></script>
<link type="text/css" href="../demos.css" rel="stylesheet" />
<style type="text/css">
#sortable-tolerance-default, #sortable-tolerance-pointer { list-style-type: none; margin: 0; padding: 0; float: left; }
#sortable-tolerance-default li, #sortable-tolerance-pointer li { margin: 3px; padding: 1px; float: left; width: 100px; height: 90px; font-size: 1.3em; text-align: center; }
</style>
<script type="text/javascript">
$(function() {
$("#sortable-tolerance-default").sortable({
tolerance: 'default'
});
$("#sortable-tolerance-pointer").sortable({
tolerance: 'pointer'
});
});
</script>
</head>
<body>
<div class="demo">
<ul id="sortable-tolerance-default">
<li class="ui-state-default"><div class="ui-icon ui-icon-arrow-4"></div>Default tolerance</li>
<li class="ui-state-default"><div class="ui-icon ui-icon-arrow-4"></div>2</li>
<li class="ui-state-default"><div class="ui-icon ui-icon-arrow-4"></div>3</li>
</ul>
<br style="clear:both;" />
<br style="clear:both;" />
<ul id="sortable-tolerance-pointer">
<li class="ui-state-default"><div class="ui-icon ui-icon-arrowthick-1-ne"></div>Pointer tolerance</li>
<li class="ui-state-default"><div class="ui-icon ui-icon-arrowthick-1-ne"></div>2</li>
<li class="ui-state-default"><div class="ui-icon ui-icon-arrowthick-1-ne"></div>3</li>
</ul>
</div><!-- End demo -->
<div class="demo-description">
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<p>Set the stickiness of drop areas using the <strong>tolerance</strong> option. Specify whether the drop should occur when either the pointer or intersection (mid-point of the sortable item) crosses the drop area's boundary. By default, the script guesses which option is best to use for each drag.</p>
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</div><!-- End demo-description -->
</body>
</html>