当前位置: 首页 > 图文教程 > 网络编程 > Javascript > 一个很酷的拖动层的js类,兼容IE及Firefox

Javascript
用jQuery解决IE不支持的option disable属性
jQuery 源代码显示控件 (Ajax加载方式).
JS backgroundImage控制
jQuery 性能优化指南 (1)
jQuery 性能优化指南(2)
jQuery 性能优化指南(3)
input+select(multiple) 实现下拉框输入值
javascript getBoundingClientRect() 来获取页面元素的位置的代码[修正版]
jQuery 图像裁剪插件Jcrop的简单使用
让GoogleCode的SVN下的HTML文件在FireFox下正常显示.
jquery(1.3.2) 斑马线效果代码
JQuery Jcrop 实现图片裁剪的插件
jquery img src 获取实现代码
javascript 历史记录 经常用于产品最近历史浏览
jquery tabs的实现代码
jQuery 剧场版 你必须知道的javascript
JavaScript 闭包深入理解(closure)
js 图片缩放(按比例)控制代码
广告切换效果(缓动切换)
javascript 用局部变量来代替全局变量

Javascript 中的 一个很酷的拖动层的js类,兼容IE及Firefox


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-09-12   浏览: 441 ::
收藏到网摘: n/a

自己优化修改了网上的一个JS拖动类,增加了拖动时显示半透明的特效。

自己优化修改了网上的一个JS拖动类,增加了拖动时显示半透明的特效。 http://www.ruanchen.com/"http://www.ruanchen.com/" style="color: #000">http://www.ruanchen.com/"codetitle">复制代码 代码如下:


//*********************************移动层 函数 开始*******************************************
//生成拖动层很简单,只需要(参数之一如果是数组表示局部拖动,arr[0]表示拖动层,arr[1]表示整体)
//new divDrag(['test'], [getObject('test31'),getObject('test3')], getObject('test1') ,getObject('test2') ,[getObject('test41'),getObject('test4')]);
//记得有拖动属性的层position:absolute;
Array.prototype.extend = function(C){for(var B=0,A=C.length;B<A;B++){this.push(C[B]);}return this;}
function divDrag()
{
var A,B,gCn;
var zIndex = 1;
this.dragStart = function(e)
{
e = e||window.event;
if((e.which && (e.which!=1))||(e.button && (e.button!=1))){return;}
var pos = this.gPos;
gCn = this.parent||this;
if(document.defaultView)
{
_top = document.defaultView.getComputedStyle(gCn,null).getPropertyValue("top");
_left = document.defaultView.getComputedStyle(gCn,null).getPropertyValue("left");
}
else
{
if(gCn.currentStyle)
{
_top = gCn.currentStyle["top"];
_left = gCn.currentStyle["left"];
}
}
pos.ox = (e.pageX||(e.clientX+document.documentElement.scrollLeft))-parseInt(_left);
pos.oy = (e.pageY||(e.clientY+document.documentElement.scrollTop))-parseInt(_top);
if(!!A)
{
if(document.removeEventListener)
{
document.removeEventListener("mousemove",A,false);
document.removeEventListener("mouseup",B,false);
}
else
{
document.detachEvent("onmousemove",A);
document.detachEvent("onmouseup",B);
}
}
A = this.dragMove.create(this);
B = this.dragEnd.create(this);
if(document.addEventListener)
{
document.addEventListener("mousemove",A,false);
document.addEventListener("mouseup",B,false);
}
else
{
document.attachEvent("onmousemove",A);
document.attachEvent("onmouseup",B);
}
gCn.style.zIndex = (++zIndex);
}
this.dragMove = function(e)
{
e = e||window.event;
var pos = this.gPos;
gCn = this.parent||this;
gCn.style.top = (e.pageY||(e.clientY+document.documentElement.scrollTop))-parseInt(pos.oy)+'px';
gCn.style.left = (e.pageX||(e.clientX+document.documentElement.scrollLeft))-parseInt(pos.ox)+'px';
try{if(CMInfo.Bs_Name=='IE'){gCn.style.filter = "alpha(opacity=70)";}else{gCn.style.opacity = "0.7";}}catch(e){}
this.stop(e);
}
this.dragEnd = function(e)
{
var pos = this.gPos;
e = e||window.event;
if((e.which && (e.which!=1))||(e.button && (e.button!=1))){return};
gCn = this.parent||this;
if(!!(this.parent)){this.style.backgroundColor = pos.color;}
try{if(CMInfo.Bs_Name=='IE'){gCn.style.filter = "alpha(opacity=100)";}else{gCn.style.opacity = 1;}}catch(e){}
if(document.removeEventListener)
{
document.removeEventListener("mousemove",A,false);
document.removeEventListener("mouseup",B,false);
}
else
{
document.detachEvent("onmousemove",A);
document.detachEvent("onmouseup",B);
}
A = null;
B = null;
gCn.style.zIndex = (++zIndex);
this.stop(e);
}
this.shiftColor = function()
{
this.style.backgroundColor="#EEEEEE";
}
this.position = function (e)
{
var t=e.offsetTop;
var l=e.offsetLeft;
while(e=e.offsetParent)
{
t += e.offsetTop;
l += e.offsetLeft;
}
return {x:l,y:t,ox:0,oy:0,color:null}
}
this.stop = function(e)
{
if(e.stopPropagation){e.stopPropagation();}else{e.cancelBubble=true;}
if(e.preventDefault){e.preventDefault();}else{e.returnValue=false;}
}
this.create = function(bind)
{
var B = this;
var A = bind;
return function(e){return B.apply(A,[e]);}
}
this.dragStart.create = this.create;
this.dragMove.create = this.create;
this.dragEnd.create = this.create;
this.shiftColor.create = this.create;
this.initialize = function()
{
for(var A=0,B=arguments.length;A<B;A++)
{
C=arguments[A];
if(!(C.push)){C = [C];}
gC = (typeof(C[0])=='object')?C[0]:(typeof(C[0])=='string'?getObject(C[0]):null);
if(!gC){continue};
gC.gPos = this.position(gC);
gC.dragMove = this.dragMove;
gC.dragEnd = this.dragEnd;
gC.stop = this.stop;
if(!!C[1])
{
gC.parent = C[1];
gC.gPos.color = gC.style.backgroundColor;
}
if(gC.addEventListener)
{
gC.addEventListener("mousedown",this.dragStart.create(gC),false);
if(!!C[1]){gC.addEventListener("mousedown",this.shiftColor.create(gC),false); }
}
else
{
gC.attachEvent("onmousedown",this.dragStart.create(gC));
if(!!C[1]){gC.attachEvent("onmousedown",this.shiftColor.create(gC));}
}
}
}
this.initialize.apply(this,arguments);
}
//*********************************移动层 函数 结束*******************************************