LightBox
2009-09-19 13:47 BlueDream 阅读(521) 评论(0) 编辑 收藏 举报<!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>
<title> LightBox </title>
<style type="text/css">
#box {
text-align:right;
background-color: #fff;
border: 20px solid #000000;
}
</style>
</head>
<body>
<script type="text/javascript">
var $ = function(id){
return 'string' == typeof id ? document.getElementById(id) : id;
}
var $d = (document.compatMode == 'CSS1Compat') ? document.documentElement : document.body;
var isIE = navigator.userAgent.indexOf('MSIE') != -1;
var isIE6 = navigator.userAgent.indexOf('MSIE 6.0') != -1;
isIE6 && document.execCommand('BackgroundImageCache', false, true);
var Extend = function(destination, source){
for(var pro in source){
destination[pro] = source[pro];
}
return destination;
}
function addEvent(oTarget, sType, fnHandler){
if(window.attachEvent){
oTarget.attachEvent("on"+sType, fnHandler);
}else if(window.addEventListener){
oTarget.addEventListener(sType, fnHandler, false);
}else{
oTarget["on"+sType] = fnHandler;
}
}
function removeEvent(oTarget, sType, fnHandler){
if(window.detachEvent){
oTarget.detachEvent("on"+sType, fnHandler);
}else if(window.removeEventListener){
oTarget.removeEventListener(sType, fnHandler, false);
}else{
oTarget["on"+sType] = null;
}
}
function setOpacity(obj, o){
if(!obj.currentStyle || !obj.currentStyle.hasLayout) obj.style.zoom = 1;
if(!!isIE)obj.style.filter = 'alpha(opacity=' + Math.round(o) + ')';
else obj.style.opacity = o / 100;
}
var Bind = function(object, fun){
return function(){
fun.apply(object, arguments);
}
}
var Class = {
create: function(){
return function(){
this.initialize.apply(this, arguments);
}
}
}
var OverLay = Class.create();
OverLay.prototype = {
initialize: function(options){
this.SetOptions(options);
Extend(this, this.options);
this.Lay = document.body.insertBefore(document.createElement('div'), document.body.childNodes[0]);
with(this.Lay.style){
position = 'fixed';left = top = '0px';width = height = '100%';zIndex = parseInt(this.zIndex);
backgroundColor = this.bgColor;display = 'none';
}
if(isIE6){
this.Lay.style.position = 'absolute';
this._resize = Bind(this, function(){
this.Lay.style.width = Math.max($d.clientWidth, $d.scrollWidth) + "px";
this.Lay.style.height = Math.max($d.clientHeight, $d.scrollHeight) + "px";
});
this.Lay.innerHTML += "<iframe style='position:absolute;left:0px;top:0px;widht:100%;height:100%;filter:alpha(opacity=0);z-index:-1'></iframe>";
}
},
Show: function(){
if(isIE6){this._resize();addEvent(window,'resize',Bind(this, this._resize))};
setOpacity(this.Lay, this.opacity);
this.Lay.style.display = "block";
},
SetOptions: function(options){
this.options = {
bgColor: "#000000",
opacity: 80,
zIndex: 1000
};
Extend(this.options, options || {});
},
Close: function(){
this.Lay.style.display = "none";
isIE6 && removeEvent(window,'resize',Bind(this,this._resize));
}
}
var LightBox = Class.create();
LightBox.prototype = {
initialize: function(boxId, options){
this.Box = $(boxId);
this.Lay = new OverLay();
this.SetOptions(options);
Extend(this, this.options);
this.Box.style.display = "none";
this.Box.style.zIndex = parseInt(this.Lay.zIndex) + 1;
if(isIE6){
this._top = this._left = 0;
this._fixed = Bind(this, function(){ this.isCenter ? this.SetCenter() : this.FixScroll(); });
}
},
SetCenter: function(){
this.Box.style.marginLeft = $d.scrollLeft - this.Box.offsetWidth / 2 + "px";
this.Box.style.marginTop = $d.scrollTop - this.Box.offsetHeight / 2 + "px";
},
FixScroll: function(){
this.Box.style.top = $d.scrollTop - this._top + this.Box.offsetTop + "px";
this.Box.style.left = $d.scrollLeft - this._left + this.Box.offsetLeft + "px";
this._top = $d.scrollTop; this._left = $d.scrollLeft;
},
Show: function(){
this.hasLayer && this.Lay.Show();
this.Box.style.position = this.isScroll && !isIE6 ? 'fixed' : 'absolute';
this.Box.style.display = "block";
if(this.isCenter){
this.Box.style.left = "50%"; this.Box.style.top = "50%";
if(this.isScroll){
this.Box.style.marginLeft = -this.Box.offsetWidth / 2 + "px";
this.Box.style.marginTop = - this.Box.offsetHeight / 2 + "px";
}else {
this.SetCenter();
}
}else{
this.Box.style.left = "20%"; this.Box.style.top = "10%";
}
if(isIE6){
this.isCenter ? this.SetCenter() : this.isScroll && this.FixScroll();
this.isScroll && addEvent(window,'scroll',this._fixed);
}
},
SetOptions: function(options){
this.options = {
hasLayer: true,
isCenter: true,
isScroll: true
};
Extend(this.options, options || {});
},
Close: function(){
this.Box.style.display = "none";
this.Lay.Close();
}
}
</script>
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<div id="openbtn"><img src="http://images.cnblogs.com/cnblogs_com/s_liangchao1s/201609/o_28t.jpg"/></div>
<div id="box">
<img src="http://images.cnblogs.com/cnblogs_com/s_liangchao1s/201609/o_28.jpg"/></br>
<span id="clobtn">
<img src='http://images.cnblogs.com/cnblogs_com/s_liangchao1s/201609/o_closelabel.gif'/>
</span>
</div>
<select style="width:100px;">
<option value="" selected="selected">Test IE6</option>
</select>
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<script type="text/javascript">
var box = new LightBox('box');
$('openbtn').onclick = function(){
box.Show();
}
$('clobtn').onclick = function(){
box.Close();
}
</script>
</body>
</html>
【源码下载】
