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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www./TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www./1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>jQuery 版“元素拖拽改变大小”原型 </title>
<script type="text/javascript" src="jquery-1.4.2.min.js"></script>
<script type="text/javascript">
/*
* jQuery.Resize by wuxinxi007
* Date: 2011-5-14
* blog : http://wuxinxi007.cnblogs.com/
*/
$(function(){
//绑定需要拖拽改变大小的元素对象
bindResize(document.getElementById('test'));
});
function bindResize(el){
//初始化参数 var els = el.style, //鼠标的 X 和 Y 轴坐标
x = y = 0;
//邪恶的食指 $(el).mousedown(function(e){ //按下元素后，计算当前鼠标与对象计算后的坐标
x = e.clientX - el.offsetWidth,
y = e.clientY - el.offsetHeight;
//在支持 setCapture 做些东东 el.setCapture ? ( //捕捉焦点
el.setCapture(),
//设置事件
el.onmousemove = function(ev){
mouseMove(ev || event)
},
el.onmouseup = mouseUp
) : (
//绑定事件
$(document).bind("mousemove",mouseMove).bind("mouseup",mouseUp)
)
//防止默认事件发生 e.preventDefault() }); //移动事件
function mouseMove(e){
//宇宙超级无敌运算中...
els.width = e.clientX - x + 'px',
els.height = e.clientY - y + 'px' } //停止事件 function mouseUp(){
//在支持 releaseCapture 做些东东
el.releaseCapture ? (
//释放焦点
el.releaseCapture(),
//移除事件
el.onmousemove = el.onmouseup = null
) : (
//卸载事件
$(document).unbind("mousemove", mouseMove).unbind("mouseup", mouseUp)
)
} } </script> <style type="text/css"> #test{ position:absolute; top:0;left:0; width:200px; height:100px; background:#f1f1f1; text-align:center; line-height:100px; border:1px solid #CCC; cursor:move; } </style> </head> <body> <div id="test">用力拉</div> </body> </html> |
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