1213.gif
捕獲到用戶的動作蛙讥。還原用戶的所有操作
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta charset="utf-8">
<title>拖拽回放</title>
</head>
<style>
*{margin:0px;padding:0px;}
#div1{width:100px;height:100px;background:red;position:absolute;left:0px;top:30px;}
</style>
<body>
<button id="btn1">回放</button>
<div id="div1">
</div>
</body>
<script>
var button1 = document.getElementById("btn1");
var div1 = document.getElementById("div1");
var arrL = [] ; //橫坐標(biāo)合集
var arrT = []; //縱坐標(biāo)合集
div1.onmousedown = function(e) {
e = e || event;
/*解決卡頓問題捕獲到鼠標(biāo)動作 */
if(div1.setCapture){
div1.setCapture();
}
/*解決卡頓問題結(jié)束*/
var L1 = e.clientX - div1.offsetLeft;
var T1 = e.clientY - div1.offsetTop;
div1.onmousemove = function (e) {
e = e || event;
var L2 = e.clientX - L1;
var T2 = e.clientY - T1;
if (T2 < 0) {
T2 = 0;
} else if (T2 > document.documentElement.clientHeight - div1.offsetHeight) {
T2 = document.documentElement.clientHeight - div1.offsetHeight;
}
if (L2 < 0) {
L2 = 0;
} else if (L2 > document.documentElement.clientWidth - div1.offsetWidth) {
L2 = document.documentElement.clientWidth - div1.offsetWidth;
}
arrL.push(L2);
arrT.push(T2);
div1.style["left"] = L2+"px";
div1.style["top"] = T2+"px";
}
div1.onmouseup = function(){
if(div1.releaseCapture){
div1.releaseCapture();
}
div1.onmousemove = null;
}
}
button1.onclick = function(){
arrL.push(0); //增加初始X位置
arrT.push(30); //增加初始Y位置
var index = arrL.length;
var timer = setInterval(function(){
if(index==0)
{
clearInterval(timer);
arrL = [];
arrT = [];
}
--index;
div1.style["left"] = arrL[index] +"px";
div1.style["top"] = arrT[index] +"px";
},20)
}
</script>
</html>
