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JavaScript中使用zDragDrop实现拖放功能

2010-06-22 17:45 435 查看
zDragDrop库下载地址:http://www.nczonline.net/downloads/

使用zDragDrop库实现拖放功能能够大大减少代码量,直接研究。

<html>
<head>
<title>Simulated Drag And Drop Example</title>
<script type="text/javascript" src="zdragdroplib.js"></script>
<script type="text/javascript">

function doLoad() {
var oDraggable = new zDraggable(document.getElementById("div1"), zDraggable.DRAG_X | zDraggable.DRAG_Y);
var oDropTarget = new zDropTarget(document.getElementById("divDropTarget"));
oDraggable.addDropTarget(oDropTarget);
oDropTarget.addEventListener("drop", function (oEvent) {
oEvent.relatedTarget.moveTo(oDropTarget.getLeft(), oDropTarget.getTop());
});
}

</script>
<style type="text/css">
#div1 {
background-color: red;
height: 100px;
width: 100px;
position: absolute;
z-index: 10;
}

#divDropTarget {
background-color: blue;
height: 200px;
width: 200px;
position: absolute;
left: 300px;
}
</style>
</head>
<body onload="doLoad()">
<p>Try dragging the red square onto the blue square.</p>
<div id="div1"></div>
<div id="divDropTarget"></div>
</body>
</html>
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