JavaScript实现图片切换效果（适用于IE浏览器）

cobra - 2008-5-23 17:57:00

文/cloudgamer 出处/博客园

仿照常见的那个图片切换flash做的效果，纯js。不过滤镜切换只对应ie，ff只能看到一般的切换

效果：

附件: 您所在的用户组无法下载或查看附件

动态效果请见：http://www.cnblogs.com/cloudgamer/archive/2008/05/23/1205642.html

代码

Code

CODE:

<!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>图片切换效果</title>
<style type="text/css">
#idPicShow img {}{
width:265px;
height:200px;
border:1px solid #eee;
}
#idPicText {}{
background:#eee;
line-height:25px;
text-align:center;
font-weight:bold;
width:267px;
white-space:nowrap;
overflow:hidden;
font-size:12px;
}
#idPicText a {}{
text-decoration:none;
color:#333;
}
#idPicList img {}{
cursor:pointer;
width:65px;
height:50px;
filter:alpha(opacity=50);
-moz-opacity: .5;
opacity: .5;
border:0;
margin:10px;
}
#idPicList img.on {}{
filter:alpha(opacity=100);
-moz-opacity: 1;
opacity: 1;
}
</style>
<script type="text/javascript">
var isIE = (document.all) ? true : false;

var $ = function (id) {
return "string" == typeof id ? document.getElementById(id) : id;
};

var Class = {
create: function() {
return function() {
this.initialize.apply(this, arguments);
}
}
}

Object.extend = function(destination, source) {
for (var property in source) {
destination[property] = source[property];
}
return destination;
}

//ie only
var TransView = Class.create();
TransView.prototype = {
initialize: function(arrList, idShow, idList, idText, options) {
if(!arrList || arrList.length == 0) return;

var oThis = this, oShow = $(idShow), oList = $(idList), oText = $(idText), img = document.createElement("img"), a = document.createElement("a");

//初始化显示区域
img.src = "javascript:;"; a.target = "_blank"; if(isIE){ img.style.filter = "revealTrans(duration=1)"; };
a.appendChild(img); oShow.appendChild(a);

this._oList = oList;
this._oText = oText;
this._list = arrList;
this._img = img;
this._a = a;
this._timer = null;
this._index = -1;

this.SetOptions(options);

this.Time = Math.abs(this.options.Time);
this.Auto = !!this.options.Auto;
this.ClassOn = this.options.ClassOn;
this.ClassOff = this.options.ClassOff;

this.Set();
},
//设置默认属性
SetOptions: function(options) {
this.options = {//默认值
ClassOn: "",//显示时样式
ClassOff: "",//不显示时样式
Auto: true,//是否自动切换
Time: 3000//切换时间
};
Object.extend(this.options, options || {});
},
//设置
Set: function() {
this.Each(function(list, i){
var oThis = this, img = document.createElement("img");

img.src = list["img"];
img.alt = list["text"];
img.onmouseover = function(){ oThis.Show(i); };
img.onmouseout = function(){ if(oThis.Auto){ oThis._timer = setTimeout(function(){ oThis.Run(); }, oThis.Time); } };

this._list["obj"] = img;

//这里封装的不好
this._oList.appendChild(img);
});

this.Run();
},
//显示
Show: function(i) {
this.Stop();

if(i < 0 || i >= this._list.length) i = 0;

if(isIE){
this._img.filters.revealTrans.Transition = Math.floor(Math.random() * 23);
this._img.filters.revealTrans.apply();
this._img.filters.revealTrans.play();
}

this._img.src = this._list["img"];
this._img.alt = this._list["text"];

if(!this._list["url"]){
this._oText.innerHTML = this._list["text"];
this._a.removeAttribute("href");
} else {
this._oText.innerHTML= "<a href='" + this._list["url"] + "' target='_blank'>" + this._list["text"] + "</a>";
this._a.href = this._list["url"];
}

if(this._index >= 0) this._list[this._index]["obj"].className = this.ClassOff;
this._list["obj"].className = this.ClassOn;
this._index = i;
},
//开始
Run: function() {
this.Show(this._index + 1);
if(this.Auto){ var oThis = this; this._timer = setTimeout(function(){ oThis.Run(); }, oThis.Time); }
},
//停止
Stop: function() {
clearTimeout(this._timer);
},
//
Each:function(fun) {
for (var i = 0, len = this._list.length; i < len; i++)
fun.call(this, this._list, i);
},
//添加
Add:function(img, text, url) {
this.Stop();
var len = this._list.length;
this._list[len] = {'img': img, 'text': text, 'url': url }
this._oList.innerHTML = "";

this.Set();
},
//
Delete:function(index) {
index--;
if(index < 0 || index > this._list.length) return;

this.Stop();
var _arr = [];
var m =0;

this.Each(function(list, i){ if(i != index) _arr[m++] = list; });
this._list = _arr;
this._oList.innerHTML = "";

this.Set();
}
};
</script>
</head>
<body>
<div id="idPicShow"></div>
<div id="idPicText"></div>
<div id="idPicList"> </div>
<div style="clear:both;"> 图片url：<br />
<input id="textImg" type="text" value="http://car.fs12345.com/UploadFile/2008520163714.jpg" />
<br />
说明：<br />
<input id="textText" type="text" value="韩国车模是玉女还是欲女" />
<br />
链接地址：<br />
<input id="textUrl" type="text" value="http://car.fs12345.com/Htmls/auto/mm/20080520161608122.htm" />
<br /><br />
<input name="" type="button" value=" 添加 " onclick="Add();" />
<br /><br />
<input name="" type="button" value=" 删除 " onclick="Delete();" /> 第 <input id="textIndex" type="text" size="3" value="1" /> 个
</div>
<script>
var tv = new TransView([
{'img':'http://car.fs12345.com/UploadFile/2008520163803.jpg', 'text':'雷诺梅甘娜推特别版', 'url':'http://car.fs12345.com/Htmls/auto/newcar/20080520161004009.htm'},
{'img':'http://car.fs12345.com/UploadFile/200851084140.jpg', 'text':'全新MG名爵TF', 'url':'http://car.fs12345.com/Htmls/auto/newcar/20080510083439924.htm'},
{'img':'http://car.fs12345.com/UploadFile/200841690403.jpg', 'text':'保时捷RS Spyder', 'url':'http://car.fs12345.com/Htmls/auto/mzsj/20080416085953966.htm'}
], "idPicShow", "idPicList", "idPicText", { ClassOn: "on" }
);

function Add(){
tv.Add($("textImg").value, $("textText").value, $("textUrl").value);
}

function Delete(i){
var i = $("textIndex").value;
if(!isNaN(i)) tv.Delete(parseInt(i));
}
</script>
</body>
</html>

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