| javascript实现左右框架(栏)拖动效果 |
| 作者：佚名 来源：不详 整理日期：2007-11-12 |
<!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=gb2312" />
<title>Untitled Document</title>
<style type="text/css">
*{margin:0px;padding:0px}
html{overflow:hidden}
#sideBar{width:200px;height:100%;overflow:auto}
#toggleBar,.div{
width:7px;height:100%;
overflow:hidden;background:#eee;
cursor:e-resize;border-left:1px solid #ccc;border-right:1px solid #ccc;
}
td{display:block;overflow:auto;word-break:break-all;}
</style>
<script type="text/javascript" src="../Common/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
//及时调整页面内容的高度
setInterval(function(){
var winH=(document.documentElement||document.body).clientHeight;
$("#tbl,#sideBar,#toggleBar,#main").css("height",winH);
$("td").each(function(){$(this).html()||$(this).html(" ")});
},100)
}
);
var begin_x;
var drag_flag = false;
document.onmousemove = mouseDrag
document.onmouseup = mouseDragEnd
//半透明的拖动条（模拟）
var alphaDiv="<div class=div id=alphaDiv style=position:absolute;height:2000px;top:0;z-index:10001;filter:alpha(opacity=50);opacity:0.5;left:200px> </div>";
function setDrag(){
drag_flag=true;
begin_x=event.x;
//添加蒙板
createMask();
//添加半透明拖动条
$(alphaDiv).css("left",$("#toggleBar")[0].offsetLeft).appendTo("body");
}
//关键部分
function createMask(){
//创建背景
var rootEl=document.documentElement||document.body;
var docHeight=((rootEl.clientHeight>rootEl.scrollHeight)?rootEl.clientHeight:rootEl.scrollHeight)+"px";
var docWidth=((rootEl.clientWidth>rootEl.scrollWidth)?rootEl.clientWidth:rootEl.scrollWidth)+"px";
var shieldStyle="position:absolute;top:0px;left:0px;width:"+docWidth+";height:
"+docHeight+";background:#000;z-index:10000;filter:alpha(opacity=0);opacity:0";
$("<div id=shield style=\""+shieldStyle+"\"></div>").appendTo("body");
}
//拖动时执行的函数
function mouseDrag(){
if(drag_flag==true){
if (window.event.button==1){
var now_x=event.x;
var value=parseInt($("#alphaDiv")[0].style.left)+now_x-begin_x;
$("#alphaDiv")[0].style.left=value+"px";
begin_x=now_x;
}
$("body").css("cursor","e-resize"); //设定光标类型
}else{
try{
$("#shield").remove();
$("#sideBar")[0].style.pixelWidth=$("#alphaDiv")[0].style.left;
$("#alphaDiv").remove();
}catch(e){}
}
}
function mouseDragEnd(){
//设置拖动条的位置
if(drag_flag==true){
//设定拖动条的位置（设定左侧的宽度）
$("#sideBar")[0].style.pixelWidth=parseInt($("#alphaDiv")[0].style.left);
$("#shield").remove(); //删除蒙板
$("#alphaDiv").remove(); //删除半透明拖动条
$("body").css("cursor","normal"); //恢复光标类型
}
drag_flag=false;
}
</script>
</head>
<body>
<table id="tbl" border="0" bordercollaspe="collapse" cellpadding="2" cellspacing="0" width="100%" height="100%">
<tr>
<td width="1"><div id="sideBar" style="width:200px;"><div style="height:1200px">asdfasdf</div></div>
</td>
<td width="1" onmousedown="setDrag()" id="toggleBar"></td>
<td id="main">
<iframe src="test.htm" id="frmMain" width="100%" height="100%"></iframe>
</td>
</tr>
</table>
</body>
</html>
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