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<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<title>Constrain Draggable - jQuery EasyUI Demo</title>
	<link rel="stylesheet" type="text/css" href="../../themes/default/easyui.css">
	<link rel="stylesheet" type="text/css" href="../../themes/icon.css">
	<link rel="stylesheet" type="text/css" href="../demo.css">
	<script type="text/javascript" src="../../jquery.min.js"></script>
	<script type="text/javascript" src="../../jquery.easyui.min.js"></script>
</head>
<body>
	<h2>Constrain Draggable</h2>
	<p>The draggable object can only be moved within its parent container.</p>
	<div style="margin:20px 0;"></div>
	<div class="easyui-panel" style="position:relative;overflow:hidden;width:500px;height:300px">
		<div class="easyui-draggable" data-options="onDrag:onDrag" style="width:100px;height:100px;background:#fafafa;border:1px solid #ccc;">
		</div>
	</div>
	<script>
		function onDrag(e){
			var d = e.data;
			if (d.left < 0){d.left = 0}
			if (d.top < 0){d.top = 0}
			if (d.left + $(d.target).outerWidth() > $(d.parent).width()){
				d.left = $(d.parent).width() - $(d.target).outerWidth();
			}
			if (d.top + $(d.target).outerHeight() > $(d.parent).height()){
				d.top = $(d.parent).height() - $(d.target).outerHeight();
			}
		}
	</script>

</body>
</html>