• 图片切换例子


    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="zzzmytest_Default3" %>

    <!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 runat="server">
        <title></title>
        <style type="text/css">
            .container, .container *
            {
                margin: 0;
                padding: 0;
            }
            
            .container
            {
                500px;
                height: 500px;
                overflow: hidden;
                position: relative;
            }
            
            .slider
            {
                position: absolute;
            }
            .slider li
            {
                list-style: none;
                display: inline;
            }
            .slider img
            {
                500px;
                height: 500px;
                display: block;
            }
            
            .slider2
            {
                2000px;
            }
            .slider2 li
            {
                float: left;
            }
            
            .num
            {
                position: absolute;
                right: 5px;
                bottom: 5px;
            }
            .num li
            {
                float: left;
                color: #FF7300;
                text-align: center;
                line-height: 16px;
                16px;
                height: 16px;
                font-family: Arial;
                font-size: 12px;
                cursor: pointer;
                overflow: hidden;
                margin: 3px 1px;
                border: 1px solid #FF7300;
                background-color: #fff;
            }
            .num li.on
            {
                color: #fff;
                line-height: 21px;
                21px;
                height: 21px;
                font-size: 16px;
                margin: 0 1px;
                border: 0;
                background-color: #FF7300;
                font-weight: bold;
            }
        </style>
    </head>
    <body>
        <form id="form1" runat="server">
        <div class="container" id="idTransformView2">
            <ul class="slider slider2" id="idSlider2">
                <li>
                    <img src="images/1.jpg" alt=""/></li>
                <li>
                    <img src="images/2.jpg" alt=""/></li>
                <li>
                    <img src="images/3.jpg" alt=""/></li>
            </ul>
            <ul class="num" id="idNum2">
                <li>1</li>
                <li>2</li>
                <li>3</li>
            </ul>
        </div>
        <br />
        </form>

         <script type="text/javascript">
             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;
             }

             var TransformView = Class.create();
             TransformView.prototype = {
                 //容器对象,滑动对象,切换参数,切换数量
                 initialize: function (container, slider, parameter, count, options) {
                     if (parameter <= 0 || count <= 0) return;
                     var oContainer = $(container), oSlider = $(slider), oThis = this;

                     this.Index = 0; //当前索引

                     this._timer = null; //定时器
                     this._slider = oSlider; //滑动对象
                     this._parameter = parameter; //切换参数
                     this._count = count || 0; //切换数量
                     this._target = 0; //目标参数

                     this.SetOptions(options);

                     this.Up = !!this.options.Up;
                     this.Step = Math.abs(this.options.Step);
                     this.Time = Math.abs(this.options.Time);
                     this.Auto = !!this.options.Auto;
                     this.Pause = Math.abs(this.options.Pause);
                     this.onStart = this.options.onStart;
                     this.onFinish = this.options.onFinish;

                     oContainer.style.overflow = "hidden";
                     oContainer.style.position = "relative";

                     oSlider.style.position = "absolute";
                     oSlider.style.top = oSlider.style.left = 0;
                 },
                 //设置默认属性
                 SetOptions: function (options) {
                     this.options = {//默认值
                         Up: true, //是否向上(否则向左)
                         Step: 5, //滑动变化率
                         Time: 10, //滑动延时
                         Auto: true, //是否自动转换
                         Pause: 2000, //停顿时间(Auto为true时有效)
                         onStart: function () { }, //开始转换时执行
                         onFinish: function () { } //完成转换时执行
                     };
                     Object.extend(this.options, options || {});
                 },
                 //开始切换设置
                 Start: function () {
                     if (this.Index < 0) {
                         this.Index = this._count - 1;
                     } else if (this.Index >= this._count) { this.Index = 0; }

                     this._target = -1 * this._parameter * this.Index;
                     this.onStart();
                     this.Move();
                 },
                 //移动
                 Move: function () {
                     clearTimeout(this._timer);
                     var oThis = this, style = this.Up ? "top" : "left", iNow = parseInt(this._slider.style[style]) || 0, iStep = this.GetStep(this._target, iNow);

                     if (iStep != 0) {
                         this._slider.style[style] = (iNow + iStep) + "px";
                         this._timer = setTimeout(function () { oThis.Move(); }, this.Time);
                     } else {
                         this._slider.style[style] = this._target + "px";
                         this.onFinish();
                         if (this.Auto) { this._timer = setTimeout(function () { oThis.Index++; oThis.Start(); }, this.Pause); }
                     }
                 },
                 //获取步长
                 GetStep: function (iTarget, iNow) {
                     var iStep = (iTarget - iNow) / this.Step;
                     if (iStep == 0) return 0;
                     if (Math.abs(iStep) < 1) return (iStep > 0 ? 1 : -1);
                     return iStep;
                 },
                 //停止
                 Stop: function (iTarget, iNow) {
                     clearTimeout(this._timer);
                     this._slider.style[this.Up ? "top" : "left"] = this._target + "px";
                 }
             };

             window.onload = function () {
                 alert("asdf");
                 function Each(list, fun) {
                     for (var i = 0, len = list.length; i < len; i++) { fun(list[i], i); }
                 };

                 ////////////////////////test2

                 var objs2 = $("idNum2").getElementsByTagName("li");

                 var tv2 = new TransformView("idTransformView2", "idSlider2", 500, 3, {
                     onStart: function () { Each(objs2, function (o, i) { o.className = tv2.Index == i ? "on" : ""; }) }, //按钮样式
                     Up: false
                 });

                 tv2.Start();

                 Each(objs2, function (o, i) {
                     o.onmouseover = function () {
                         o.className = "on";
                         tv2.Auto = false;
                         tv2.Index = i;
                         tv2.Start();
                     }
                     o.onmouseout = function () {
                         o.className = "";
                         tv2.Auto = true;
                         tv2.Start();
                     }
                 })
             }
    </script>
    </body>
    </html>

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  • 原文地址:https://www.cnblogs.com/doosmile/p/2306074.html
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