使用 onDrag 选项进行拖放
说明
拖动过程中会调用此回调函数。
语法
new Draggable('element', {onDrag: 'effectFunction'});
此处的 effectFunction 是定义要应用的效果的函数。
示例
<html>
<head>
<title>Draggables Elements</title>
<script type = "text/javascript" src = "/javascript/prototype.js"></script>
<script type = "text/javascript" src = "/javascript/scriptaculous.js"></script>
<script type = "text/javascript">
window.onload = function(){
new Draggable(
'myimage', {
onDrag : function(){
new Effect.Opacity('myimage', {from:0, to:1.0, duration:1});
}
}
);
}
</script>
</head>
<body>
<p>While you drag this image it become disappear.</p>
<img id = "myimage" src = "/images/scriptaculous.gif"/>
</body>
</html>
这将产生以下结果 −
scriptaculous_drag_drop.html
