一个js封装的不错的选项卡效果代码


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>脚本之家 选项卡效果 </title>
<script type="text/javascript">
/*
    选项卡封装
    by 井底的蛙
    2008-2-4
*/
opCard = function()
{
    this.bind = new Array();
    this.index = 0;        //默认显示哪个选项卡,从0开始

    this.style = new Array();        //["","",""]
    this.overStyle = false;        //选项是否有over, out变换样式事件,样式为this.style[2]
    this.overChange = false;        //内容是否用over, out直接激活
    this.menu = false;                //菜单类型
    this.nesting = [false,false,"",""];        //是否嵌套,后面2个参数是指定menu,info的子集深度所用id

    this.auto = [false, 1000];        //自动滚动[true,2000]
    this.timerID = null;            //自动播放的
    this.menutimerID = null;        //菜单延时的

    this.creat = function(func)
    {
        var _arrMenu = document.getElementById(this.bind[0]).getElementsByTagName(this.bind[1]);
        var _arrInfo = document.getElementById(this.bind[2]).getElementsByTagName(this.bind[3]);
        var my = this, i;
        var argLen = arguments.length;
        var arrM = new Array();

        if(this.nesting[0] || this.nesting[1])    // 有选项卡嵌套
        {    // 过滤出需要的数据
            var arrMenu = this.nesting[0]?getChilds(_arrMenu,this.bind[0],2):_arrMenu;
            var arrInfo = this.nesting[1]?getChilds(_arrInfo,this.bind[2],3):_arrInfo;
        }
        else
        {
            var arrMenu = _arrMenu;
            var arrInfo = _arrInfo;
        }

        var l = arrMenu.length;
        if(l!=arrInfo.length){alert("菜单和内容必须拥有相同的数量\n如果需要,你可以放一个空的在那占位。")}

        // 修正
        if(this.menu){this.auto=false;this.overChange=true;} //如果是菜单,则没有自动运行,有over, out直接激活

        // 循环添加各个事件等
        for(i=0;i<l;i++)
        {
            arrMenu[i].cName = arrMenu[i].className;
            arrMenu[i].className = (i!=this.index || this.menu)?getClass(arrMenu[i],this.style[0]):getClass(arrMenu[i],this.style[1]);        //加载样式,菜单的话统一样式

            if(arrMenu[i].getAttribute("skip")) // 需要跳过的容器
            {
                if(this.overStyle || this.overChange)    // 有over, out 改变样式 或者 激活
                {
                    arrMenu[i].onmouseover = function(){changeTitle(this, 2);autoStop(this, 0);}
                    arrMenu[i].onmouseout = function(){changeTitle(this, 0);autoStop(this, 1);}
                }
                arrMenu[i].onclick = function(){if(argLen==1){func()}}
                arrInfo[i].style.display = "none";
                continue;
            }

            if(i!=this.index || this.menu){arrInfo[i].style.display="none"};    //隐藏初始化,菜单的话全部隐藏
            arrMenu[i].index = i;    //记录自己激活值[序号]
            arrInfo[i].index = i;

            
            if(this.overChange)    //有鼠标over, out事件
            {
                arrMenu[i].onmouseover = function(){changeOption(this);my.menu?changeMenu(1):autoStop(this, 0);}
                arrMenu[i].onmouseout = function(){changeOption(this);my.menu?changeMenu(0):autoStop(this, 1);}
            }
            else    //onclick触发
            {
                arrMenu[i].onclick = function(){changeOption(this);autoStop(this, 0);if(argLen==1){func()}}
                if(this.overStyle)    // 有over, out 改变样式
                {
                    arrMenu[i].onmouseover = function(){changeTitle(this, 2);autoStop(this, 0);}
                    arrMenu[i].onmouseout = function(){changeTitle(this, 0);autoStop(this, 1);}
                }
                else    // 没有over, out 改变样式
                {
                    if(this.auto[0])    // 有自动运行
                    {
                        arrMenu[i].onmouseover = function(){autoStop(this, 0);}
                        arrMenu[i].onmouseout = function(){autoStop(this, 1);}
                    }
                }
            }

            if(this.auto[0] || this.menu)    //arrinfo 控制自动播放
            {
                arrInfo[i].onmouseover = function(){my.menu?changeMenu(1):autoStop(this, 0);}
                arrInfo[i].onmouseout = function(){my.menu?changeMenu(0):autoStop(this, 1);}
            }
        }    //for结束

        if(this.auto[0])
        {
            this.timerID = setTimeout(autoMove,this.auto[1])
        }

        // 自动播放
        function autoMove()
        {
            var n;
            n = my.index + 1;
            if(n==l){n=0};
            while(arrMenu[n].getAttribute("skip"))        // 需要跳过的容器
            {
                n += 1;
                if(n==l){n=0};
            }
            changeOption(arrMenu[n]);
            my.timerID = setTimeout(autoMove,my.auto[1]);
        }

        // onmouseover时,自动播放停止。num:0为over,1为out。 obj暂时无用。 -_-!!
        function autoStop(obj, num)
        {
            if(!my.auto[0]){return;}
            //if(obj.index==my.index)
            num == 0 ? clearTimeout(my.timerID) : my.timerID = setTimeout(autoMove,my.auto[1]);
        }

        // 改变选项卡
        function changeOption(obj)
        {
            arrMenu[my.index].className = getClass(arrMenu[my.index],my.style[0]);    //修改旧内容
            arrInfo[my.index].style.display = "none";    //隐藏旧内容

            obj.className = getClass(obj,my.style[1]);        //修改为新样式
            arrInfo[obj.index].style.display = "";    //显示新内容

            my.index = obj.index;    //更新当前选择的index
        }

        /*        
            只有onclick时,overStyle的onmouseover,onmouseout事件。用来预激活
            obj:目标对象。    num:1为over,0为out
        */
        function changeTitle(obj, num)
        {
            if(!my.overStyle){return;};
            if(obj.index!=my.index){obj.className = getClass(obj,my.style[num])}
        }

        /*        
            菜单类型时用
            obj:目标对象。    num:1为over,0为out
        */
        function changeMenu(num)
        {
            if(!my.menu){return;}
            num==0?my.menutimerID = setTimeout(menuClose,1000):clearTimeout(my.menutimerID)
        }

        //关闭菜单
        function menuClose()
        {
            arrInfo[my.index].style.display = "none";
            arrMenu[my.index].className = my.style[0];
        }

        // 得到className(防止将原有样式覆盖)
        function getClass(o, s)
        {
            if(o.cName==""){return s}
            else{return o.cName + " " + s}
        }

        //嵌套情况下得到真正的子集
        function getChilds(arrObj, id, num)
        {
            var depth = 0;
            var firstObj = my.nesting[num]==""?arrObj[0]:document.getElementById(my.nesting[num]);        //得到第一个子集
            do    //计算深度
            {
                if(firstObj.parentNode.getAttribute("id")==id){break}else{depth+=1}
                firstObj = firstObj.parentNode;
            }
            while(firstObj.tagName.toLowerCase()!="body")    // body强制退出。

            var t;
            var arr = new Array();
            for(i=0;i<arrObj.length;i++)    //过滤出需要的数据
            {
                t = arrObj[i], d = 0;
                do
                {
                    if(t.parentNode.getAttribute("id")==id && d == depth)
                    {    
                        arr.push(arrObj[i]);break;        //得到数据
                    }
                    else
                    {
                        if(d==depth){break};d+=1;
                    }
                    t = t.parentNode;
                }
                while(t.tagName.toLowerCase()!="body")    // body强制退出
            }
            return arr;
        }
    }
}
window.onload = function()
{
    var aa = new opCard();
    aa.bind = ["a1","div","b1","div"];
    aa.style = ["a1_0","a1_1","a1_0"];
    aa.index = 0;
    aa.nesting = [false,true,"",""]
    aa.creat();
    aa =null;

    // 默认的onclick中,第一个例子
    var bba = new opCard();
    bba.bind = ["a2","li","b2","div"];
    bba.style = ["style1","style2","style3"];
    bba.overStyle = true;
    bba.creat();
    bba = null;

    // 默认的onclick中,第二个例子
    var bbb = new opCard();
    bbb.bind = ["a3","li","b3","div"];
    bbb.style = ["style1","style2","style3"];
    bbb.overStyle = true;
    bbb.creat();
    bbb = null;

    // onmousover触发中的例子
    var cc = new opCard();
    cc.bind = ["a4","li","b4","div"];
    cc.style = ["style1","style2","style3"];
    cc.overStyle = true;
    cc.overChange = true;
    cc.creat();
    cc = null;

    //自动播放auto第一个例子
    var dd = new opCard();
    dd.bind = ["a5","li","b5","div"];
    dd.style = ["style1","style2","style3"];
    dd.auto = [true, 3000];
    dd.creat();
    dd = null;

    //自动播放auto第二个例子
    var ee = new opCard();
    ee.bind = ["a6","li","b6","div"];
    ee.style = ["style1","style2","style3"];
    ee.auto = [true, 2000];
    ee.overChange = true;
    ee.creat();
    ee = null;

    //自动播放auto第三个例子
    var ff = new opCard();
    ff.bind = ["a7","li","b7","div"];
    ff.style = ["style1","style2","style3"];
    ff.auto = [true, 1000];
    ff.overChange = true;
    ff.overStyle = true;
    ff.creat();
    ff = null;

    //菜单导航例子
    var gg = new opCard();
    gg.bind = ["a8","li","b8","div"];
    gg.style = ["style1","style2","style3"];
    gg.overStyle = true;
    gg.menu = true;
    gg.creat();
    gg = null;

    //其他应用
    var hh = new opCard();
    hh.bind = ["a9","li","a9","li"];
    hh.style = ["style4","style4","style4"];
    //hh.overStyle = true;
    hh.auto = [true, 1000];
    hh.creat();
    hh = null;
}
</script>
<style type="text/css">
body{font-size:12px; font-family:Verdana,"宋体";}
p,ul{margin:0px; padding:0px;}
td,div{font-size:12px}
.a1_0 {border:1px dotted #3399FF; width:120px; background-color:#f5f5f5; margin:3px; padding:2px 0px; cursor:pointer;}
.a1_1 {border:1px solid #FF9900; width:120px; margin:3px; padding:2px 0px; cursor:pointer;}
.test{text-decoration:underline;}
#b1 div.s{border:1px solid #999999; width:90%; height:500px; margin:3px; padding:10px; overflow-y:auto; line-height:18px;}
#b1 div.s strong{color:#0066FF;}
/* */
.style1{float:left; width:80px; background-color:#f5f5f5; border:1px solid #3399FF; text-align:center; margin-right:2px; list-style-type:none; cursor:pointer;}
.style2{float:left; width:80px; background-color:#f5f5f5; border:1px solid #FF9900; text-align:center; margin-right:2px; list-style-type:none; cursor:pointer;}
.style3{float:left; width:80px; background-color:#f5f5f5; border:1px solid #666666; text-align:center; margin-right:2px; list-style-type:none; cursor:pointer;}
#a2,#a3,#a4,#a5,#a6,#a7,#a8 {height:22px;}
#b2 div,#b3 div,#b4 div,#b5 div,#b6 div,#b7 div{border:1px solid #FF9900; height:100px; width:400px; padding:5px; overflow-y:auto;}
#b8 div{border:1px solid #FF9900; height:20px; width:350px; padding:2px 5px;}
#b8 div a{margin-right:20px;}
.style4{float:left; background-color:#999999; text-align:left; list-style-type:none; padding:2px 5px; color:#FFFFFF;}
</style>
</head>
<body>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td id="a1" width="140" valign="top" align="center">
        <div class="test">简单介绍</div>
        <div class="test">默认的onclick</div>
        <div class="test">onmousover触发</div>
        <div class="test">自动播放auto</div>
        <div class="test">菜单导航</div>
        <div class="test">关于嵌套</div>
        <div class="test">其他应用</div>
        <div class="test">一些说明</div>
        <div class="test">&nbsp;</div>
        <div class="test">&nbsp;</div>
        <div class="test">&nbsp;</div>
        <div class="test">&nbsp;</div>
    </td>
    <td id="b1" valign="top">
        <div class="s">
            封装了一个选项卡,不过已经不像选项卡了-_-!!!<br><br>
            现稍微说明下吧,如果不明白的话,旁边有几个例子可能说明起来更清楚些<br><br>
            <p>
            <strong>obj.bind = ["a1","td","b1","div"];</strong><br>
            绑定id="a1"下的td标签为菜单,绑定id="b1"下的div标签为内容,简单么?<br>
            td标签的数量和div标签的数量必须相同<br>
            (若不需要显示内容,只显示菜单话,可以这个在td标签上加&lt;td skip="true"&gt;)<br>
            如果id="a1"下的td标签有嵌套表格,这样的话,就不是所有的td都是菜单,这时候需要用下nesting<br><br>

            <strong>obj.nesting = [false,true,"",""];</strong><br>
            当标签tag有嵌套时,需要用到这个<br>
            比如选项卡内容是放在div容器里,而本身这个内容里也有div标签,这时就需要用到<br>
            菜单嵌套为false,内容嵌套为true,且会自动判断出内容标签,多数时候这样就可以了<br>
            判断方法为,认定getElementsByTagName后第一个标签为内容第一项,其他的就用这个第一项的深度来判断<br>
            但有些情况下,这样还是不行<br>
            我用后面2个参数做id来指定菜单或者内容的第一项nesting = [false,true,"","q2"];<br>
            这样就肯定不会错了(不明白的话看下例子就简单多了)<br><br>

            <strong>obj.index = 0;</strong><br>
            默认显示第几个选项卡,序号从0开始<br><br>

            <strong>obj.style = ["c1","c2","c3"]</strong><br>
            菜单加载的样式的className:<br>
            菜单未选中的className是c1<br>
            菜单选中的className是c2<br>
            菜单onmouseover的className是c3<br><br>

            <strong>obj.overStyle = false;</strong><br>
            选项卡是否有onmouseover, onmouseout变换样式事件[非激活选项卡内容],对应的样式为style[2]<br><br>

            <strong>obj.overChange = false;</strong><br>
            选项卡内容是否用onmouseover, onmouseout直接激活<br><br>

            <strong>obj.menu = false;</strong><br>
            选项卡是菜单类型<br><br>
            <strong>obj.auto = [false, 1000];</strong><br>
            选项卡是否自动播放,播放速度(毫秒)<br><br>

            <strong>obj.creat();</strong><br>
            开始生成选项卡,需要onclick触发事件的话,可以obj.creat(函数名)<br>
            所有的都会触发
            </p>
        </div>
        <div class="s">
        <!--默认的onclick中,第一个例子-->
          <div id="a2">
            <ul>
              <li>1</li>
              <li>2</li>
              <li>3</li>
              <li>4</li>
            </ul>
          </div>
          <div id="b2">
            <div>这个例子是用onclick触发的<br>并设置overStyle = true;<br>(over,out改变样式,但不激活)</div>
            <div>
                var bba = new opCard();<br>
                bba.bind = ["a2","li","b2","div"];<br>
                bba.style = ["style1","style2","style1"];<br>
                bba.overStyle = true;<br>
                bba.creat();<br>
                bba = null;
            </div>
            <div>33333</div>
            <div>4444444</div>
          </div><br>
        <!--默认的onclick中,第二个例子-->
          <div id="a3">
            <ul>
              <li>1</li>
              <li>2</li>
              <li>3</li>
              <li skip="true">4</li>
            </ul>
          </div>
          <div id="b3">
            <div>
                这个例子是比上面增加skip="true"<br>即&lt;li skip="true"&gt;4&lt;/li&gt;<br>所以选项卡4是没有内容的<br>
                你可以为选项卡的文字直接加上链接,我这里就不加了
            </div>
            <div>222222</div>
            <div>33333</div>
            <div>4444444</div>
          </div>
        </div>
        <div class="s">
        <!--onmousover触发中的例子-->
          <div id="a4">
            <ul>
              <li>1</li>
              <li>2</li>
              <li skip="true">3</li>
              <li>4</li>
            </ul>
          </div>
          <div id="b4">
            <div>这个例子是用onmouseover触发的<br>(over,out直接激活)<br>并且&lt;li skip="true"&gt;3&lt;/li&gt;[选项卡3不会被激活]<br>overStyle = true;</div>
            <div>
                var cc = new opCard();<br>
                cc.bind = ["a4","li","b4","div"];<br>
                cc.style = ["style1","style2","style1"];<br>
                cc.overStyle = true;<br>
                cc.overChange = true;<br>
                cc.creat();<br>
                cc = null;
            </div>
            <div>33333</div>
            <div>4444444</div>
          </div>
        </div>
        <div class="s">
        <!--自动播放auto第一个例子-->
          <div id="a5">
            <ul>
              <li>1</li>
              <li>2</li>
              <li>3</li>
              <li>4</li>
            </ul>
          </div>
          <div id="b5">
            <div>1111111<br>我每3秒切换一个选项卡</div>
            <div>
                var ee = new opCard();<br>
                ee.bind = ["a6","li","b6","div"];<br>
                ee.style = ["style1","style2","style1"];<br>
                ee.auto = [true, 2000];<br>
                ee.overChange = true;<br>
                ee.creat();<br>
                ee = null;
            </div>
            <div>33333<br>我每3秒切换一个选项卡</div>
            <div>4444444<br>我每3秒切换一个选项卡</div>
          </div>
          <div>注:<strong>鼠标在选项卡任意位置都会使停止播放</strong><br><br>下面这个结合overChange一起</div>
          <!--自动播放auto第二个例子-->
          <div id="a6">
            <ul>
              <li>1</li>
              <li>2</li>
              <li>3</li>
              <li>4</li>
            </ul>
          </div>
          <div id="b6">
            <div>1111111<br>我每2秒切换一个选项卡</div>
            <div>
                var dd = new opCard();<br>
                dd.bind = ["a5","li","b5","div"];<br>
                dd.style = ["style1","style2","style1"];<br>
                dd.auto = [true, 3000];<br>
                dd.creat();<br>
                dd = null;<br>
            </div>
            <div>33333<br>我每2秒切换一个选项卡</div>
            <div>4444444<br>我每2秒切换一个选项卡</div>
          </div>
          <div><br>下面这个再来个&lt;li skip="true"&gt;3&lt;/li&gt;,且overStyle=true;</div>
          <!--自动播放auto第三个例子-->
          <div id="a7">
            <ul>
              <li>1</li>
              <li>2</li>
              <li skip="true">3</li>
              <li>4</li>
            </ul>
          </div>
          <div id="b7">
            <div>1111111<br>我每1秒切换一个选项卡</div>
            <div>
                var ff = new opCard();<br>
                ff.bind = ["a7","li","b7","div"];<br>
                ff.style = ["style1","style2","style1"];<br>
                ff.auto = [true, 1000];<br>
                ff.overChange = true;<br>
                ff.overStyle = true;<br>
                ff.creat();<br>
                ff = null;
            </div>
            <div>33333<br>我每1秒切换一个选项卡</div>
            <div>4444444<br>我每1秒切换一个选项卡</div>
          </div>
        </div>
        <!--菜单导航的例子-->
        <div class="s">
          <div id="a8">
            <ul>
              <li skip="true">首页</li>
              <li>新闻</li>
              <li>论坛</li>
              <li skip="true">联系我们</li>
            </ul>
          </div>
          <div id="b8">
            <div></div>
            <div><a href="#">国内新闻</a><a href="#">国际新闻</a><a href="#">娱乐新闻</a><a href="#">体育新闻</a></div>
            <div><a href="#">蓝色理想</a><a href="#">blue idea</a></div>
            <div></div>
          </div>
          <div><strong>注:菜单延时一秒关闭</strong><br>这里只是演示,实际可以设置下position什么的。-o-<br>多级菜单不知道能不能支持,没试过</div>
        </div>
        <div class="s">
            我见过的许多选项卡都不能用来嵌套<br>但还是有些时候会用到的<br>
            所以如您所见,这个演示本身就是一个嵌套,效果还不错
        </div>
        <!--其他应用-->
        <div class="s">
            比如图片切换什么,不过我太懒了,不写了。。。<br>
            这个能干什么,我也不知道。。
            <div id="a9">
              <li>新年好啊</li>
              <li>快过年了</li>
              <li>天好冷啊</li>
              <li>大家去抢红包吧</li>
              <li>红包~!红包~!你在哪里啊?</li>
            </div>            

        </div>
        <div class="s">
            选项卡标题(或者菜单)必须和选项卡内容的数量相同,否则会出错<br>即使选项卡菜单skip="true",内容也要放一个空的标签占位<br>
            其他好像暂时没发现什么<br><br>
            本来打算加入ajax的,但有些还没想好。<br>
            效率的话,应该还行,我这个演示放了几个选项卡,似乎还不错<br><br>
            写这个的目的就是以后弄选项卡只要处理样式就可以了,很多选项卡或者切换之类都是大同小异<br>
            本来是打算弄些特效在里面,考虑会增加不少代码,所以不加了,简洁点。<br><br>

            哦,还有选项卡是附加样式,不会取消原本设置的样式<br>
            如左边的下划线是原有的样式
        </div>
        <div class="s">啥都没有1</div>
        <div class="s">啥都没有2</div>
        <div class="s">啥都没有3</div>
        <div class="s">啥都没有4</div>
    </td>
  </tr>
</table>
</body>
</html>

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