对象化JS之 --仿outlook或者QQ的菜单
<html>
<head>
<meta http-equiv=Content-Type content=text/html; charset=gb2312>
<style type=text/css>
.folder1 {text-align:center; background: #00A4E1; border: 2px outset; background-image:url(Images/skin/folder_bg.gif); border-color: #00BBFF #0077FF #FFFFFF #00BBFF; cursor: hand; font-size: 9pt}
.folder2 {text-align:center; background: #20C1FF; border: 2px outset; background-image:url(Images/skin/folder_bg.gif); border-color: #00BBFF #0077FF #0077FF #60D3FF; cursor: hand; font-size: 9pt}
.foldercont{background: #D9ECF4; border: 1px outset; border-color: #B0D8FF #0077FF #0077FF #B0D8FF; font-size: 9pt; cursor: default;}
</style>
<SCRIPT LANGUAGE=javascript>
onload=function(){
var lstr =
for (var i=0; i<30; i++) lstr+= haha..<br>;
var lofolder = new outlookfolder(null,335,100,15);
lofolder.addfolder(菜单1,1..<br>2..);
lofolder.addfolder(菜单2,lstr);
lofolder.addfolder(菜单3);
lofolder.addfolder(菜单4);
lofolder.addfolder(菜单5);
lofolder.showfolderX(0);
}
//[容器,高,宽,展开速度]
function outlookfolder(aoP,aih,aiw,ait){
if (aih==null) aih=200;
if (aiw==null) aiw=100%;
if (ait==null) ait=10;
var loMain = document.createElement(<span style=overflow:hidden;height:+aih+;width:+aiw+></span>);
var lsUniqueID = loMain.uniqueID;
var loSlide = document.createElement(span);
loSlide.innerHTML = <button onmouseout=+lsUniqueID+.SlideClickStop() onmousedown=+lsUniqueID+.SlideClickStart();+lsUniqueID+.SlideCilckup() style=position:absolute;display:none;width:10;height:10></button><button onmouseout=+lsUniqueID+.SlideClickStop() onmousedown=+lsUniqueID+.SlideClickStart();+lsUniqueID+.SlideCilckdown() style=position:absolute;display:none;width:10;height:10></button>;
var liContH = aih;
if (aoP==null){
document.body.appendChild(loMain);
document.body.appendChild(loSlide);
}else{
aoP.appendChild(loMain);
aoP.appendChild(loSlide);
}
//增加一个目录[名字,内容]
loMain.addfolder = function(str,cont){
var loPar = document.createElement(SPAN);
loPar.innerHTML = <span onclick=+lsUniqueID+.showme(this) style=overflow:hidden;width:100%; class=folder1></span><span style=position:relative;overflow:hidden;width:100%;height:1 class=foldercont></span>;
this.appendChild(loPar);
loPar.children[0].innerHTML = (str==null? :str);
loPar.children[1].innerHTML = (cont==null? :cont);
liContH -= parseInt(loPar.children[0].offsetHeight);
}
//打开／关闭第x个目录夹
loMain.showfolderX = function(aix){
loMain.showme(loMain.children[aix].children[0])
}
//打开/关闭当前obj所在的目录
loMain.showme = function(obj){
if (loMain.moving) return;
loMain.moving = true;
if (obj.bOpen){
obj.bOpen = false;
loMain.closefolder(obj.parentElement.children[1]);
obj.className = folder1;
}else{
obj.bOpen = true;
loMain.openfolder(obj.parentElement.children[1]);
obj.className = folder2;
var lxfolders = loMain.children;
for (var i=0; i<lxfolders.length; i++){
var loChild = lxfolders[i].children[0];
if(loChild.uniqueID!=obj.uniqueID){
lxfolders[i].children[1].style.height=1;
loChild.bOpen = false;
loChild.className = folder1;
}
}
}
loMain.SlideItemsAction(obj.parentElement.children[1]);
}
//为目录内容设置Slide
var loSlideItem = null;
var lbSlideing = false;
loMain.SlideCilckdown = function(){ //向下滚动
loSlideItem.scrollTop += 2;
if (!lbSlideing&&loSlideItem.scrollTop<loSlideItem.scrollHeight) setTimeout(lsUniqueID+.SlideCilckdown(),1)
}
loMain.SlideCilckup = function(){ //向上滚动
loSlideItem.scrollTop -= 2;
if (!lbSlideing&&loSlideItem.scrollTop>0) setTimeout(lsUniqueID+.SlideCilckup(),1)
}
loMain.SlideClickStart = function(){ //允许开始滚动
lbSlideing=false;
}
loMain.SlideClickStop = function(){ //强制停止滚动
lbSlideing=true;
}
loMain.SlideItemsAction = function(obj){
var loUp = loSlide.children[0];
var loDown = loSlide.children[1];
if (obj.scrollHeight<=liContH||obj.parentElement.children[0].bOpen!=true){
loUp.style.display=none;
loDown.style.display=none;
}else{
loSlideItem = obj;
var lxOffset = getTrueOffset(obj);
var lileft = lxOffset[0]+obj.offsetWidth-20;
var litop = lxOffset[1]+obj.offsetHeight+5;
with(loUp.style){
display=;
left=lileft;
top=litop;
}
with(loDown.style){
display=;
left=lileft;
top=litop+liContH-40;
}
}
}
//逐渐关闭obj所在的内容显示
loMain.closefolder = function(obj,ai){
if (ai==null) ai=liContH;
if (ai<ait){ obj.style.height=1; ai=1}
if (ai>1){
obj.style.height = ai;
ai -= ait;
setTimeout(lsUniqueID+.closefolder(+obj.uniqueID+,+ai+),1)
return;
}
loMain.moving = false;
}
//逐渐打开obj所在的内容显示
loMain.openfolder = function(obj,ai){
if (ai==null) ai=1;
if (liContH>ai){
obj.style.height = ai;
ai += ait;
setTimeout(lsUniqueID+.openfolder(+obj.uniqueID+,+ai+),1)
return;
}
loMain.moving = false;
}
function getTrueOffset(e){
var x=0; var y=0;
if(!e)return [x,y];
while(e){
x+=parseInt(e.offsetLeft);
y+=parseInt(e.offsetTop);
e=e.offsetParent;
}
return [x,y];
}
return loMain;
}
</SCRIPT>
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