iGoogle的模組拖動層拖動

life66881發表於2015-03-26
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style type="text/css">
*{margin:0px; padding:0px;}
 body{position:relative; width:780px; height:800px; border:1px solid red}
.drag{width:200px; height:100px; border:1px solid #000;margin:20px; background:#fff}
.drag h1{margin:0px; padding:0px; font-size:12px; height:18px; line-height:18px; background:#E0E7F3; text-indent:20px;cursor:move;}
.center{ margin:200px; border:3px solid red}
</style>
<script type="text/javascript"></script>
<title>iGoogle Div Drag 模組拖動</title>
</head>
<body>
<div class="drag" >
<h1><strong>popper.w'dragClass</strong></h1>
</div>
<div class="drag" >
<h1>www.999jiujiu.com</h1>
</div>
<div class="drag" >
<h1><strong>www.999jiujiu.com</strong></h1>
</div>
<div class="drag"><h1>測試二</h1></div>
<div class="drag"><h1>測試三</h1></div>
<div class="drag"><h1>測試四</h1></div>
<div class="drag"><h1>測試五</h1></div>
<div><A href="http://www.999jiujiu.com/">http://www.999jiujiu.com/</A></div>
</body>
</html>
<script type="text/javascript">
/*
Author  : popper.w
Version : v2.0
*/
var DragZindexNumber=0;
function drag(obj){
var ox,oy,ex,xy,tag=0,mask=0;
if(tag==0){
obj.onmousedown=function(e)
{   
if(mask==1){return; }
obj.style.zIndex=DragZindexNumber++;
   transp(obj,"start")
tag=1;
var e = e||window.event;
ex=getEventOffset(e).offsetX;
ey=getEventOffset(e).offsetY;
ox=parseInt(obj.offsetLeft);
oy=parseInt(obj.offsetTop);
tempDiv=document.createElement("div");
with(tempDiv.style)
{
width=obj.offsetWidth+"px";
height=obj.offsetHeight+"px";
border="1px dotted red";
position="absolute";
left=obj.offsetLeft+"px";
top=obj.offsetTop+"px";
zIndex=999;
}
document.body.appendChild(tempDiv);
this.ele=tempDiv;
fDragStart(tempDiv);
document.body.onmousemove=function(e){
if(tag==1)
{ 
var e=e||window.event;
tempDiv.style.left=parseInt(e.clientX)-ex+"px";
tempDiv.style.top=parseInt(e.clientY)-ey+"px";
}
else{if(!tempDiv==null)tempDiv.parentNode.removeChild(tempDiv)}
}
  tempDiv.onmouseup=function(e)
{
var e=e||window.event;
fDragEnd(tempDiv);
obj.style.position="absolute";
movie(obj,parseInt(e.clientX)-ex-19,parseInt(e.clientY)-ey-20);
tempDiv.parentNode.removeChild(tempDiv);
tag=0;
}
}
 }
}
function movie(o,l,t){
  var a=1;
  mask=1;
  var ol=parseInt(o.offsetLeft);
  var ot=parseInt(o.offsetTop);
  var iTimer=setInterval(function(){
   if(a==10)
    {
transp(o,"end");
mask=0;
clearInterval(iTimer);
}
   o.style.left=ol+a*(l-ol)/10+"px";
   o.style.top=ot+a*(t-ot)/10+"px";
   a++;
},20);
}
function fCancleBubble(e)
{
 var e = window.event || e;
 if (e.preventDefault) e.preventDefault();
 else e.returnValue = false;
}
function transp(o,mode){
           if(mode=="start"){
          
if(document.all){
o.style.filter = "Alpha(Opacity=50)";
}else{
o.style.opacity = 0.5;
}
}
 else {
   if(document.all){
o.style.filter = "Alpha(Opacity=100)";
}else{
o.style.opacity = 1;
}
 
 
 }
}
function getOffset(evt)
{
  var target = evt.target;
  if (target.offsetLeft == undefined)
  {
    target = target.parentNode;
  }
  var pageCoord = getPageCoord(target);
  var eventCoord =
  {
    x: window.pageXOffset + evt.clientX,
    y: window.pageYOffset + evt.clientY
  };
  var offset =
  {
    offsetX: eventCoord.x - pageCoord.x,
    offsetY: eventCoord.y - pageCoord.y
  };
  return offset;
}
function getPageCoord(element)
{
  var coord = {x: 0, y: 0};
  while (element)
  {
    coord.x += element.offsetLeft;
    coord.y += element.offsetTop;
    element = element.offsetParent;
  }
  return coord;
}
function getEventOffset(evt)
{
  var msg = "";
  if (evt.offsetX == undefined)
  {
    var evtOffsets = getOffset(evt);
msg={offsetX:evtOffsets.offsetX,offsetY:evtOffsets.offsetY};
  }
  else
  {
msg={offsetX:evt.offsetX,offsetY:evt.offsetY};
  }
  return msg;
}
function fDragStart(XEle)
{
switch(fCkBrs())
{
case 3:
window.getSelection().removeAllRanges();
break;

default:
XEle.setCapture();
break;
}
}
function fDragEnd(XEle)
{
switch(fCkBrs())
{
case 3:
window.getSelection().removeAllRanges();
break;

default:
XEle.releaseCapture();
break;
}
}
function fCkBrs()
{
 switch (navigator.appName)
 {
  case 'Opera': return 2;
  case 'Netscape': return 3;
  default: return 1;
 }
} 
var element=document.getElementsByTagName("div");
for(var i=0;i<element.length;i++){
  if(element[i].className=="drag"){
  drag(element[i])}
  
}
</script>

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