jquery横向滚动条

时间：2022-03-06 10:33:34

此代码献给wendy

由于工作太忙，下次再整理成插件调用，先记录下来，欢迎同学们提意见。

<!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>jQuery 模拟横向滚动条</title>

<script type="text/javascript" src="http://mat1.gtimg.com/www/js/tcomment/jquery-1.6.2.min.js"></script>

<style>

/* 主体 */

#lk_scrollBox {width:600px; height:320px; border:1px solid black; position:relative; overflow:hidden;  }

/* 滚动条 */

#lk_scrollbar {width:560px; height:20px; background:#CCC;  position: absolute; left:20px; bottom:0;}

#lk_handle {width:20px; height:20px; background:red; position:absolute; cursor:pointer;left:0px}

/* 内容区 */

#lk_scrollInner { width:600px; height:320px; overflow:hidden; padding-bottom:20px;overflow-y:hidden;overflow-x:scroll}

#lk_scrollInner #lk_content{ width:1800px;}

#lk_scrollInner #lk_content div{ }

/* 开始、结束按钮 */

#lk_begin{ position:absolute; height:20px; width:20px; background:#666; left:-20px;}

#lk_end{ position:absolute; height:20px; width:20px; background:#666; right:-20px;}

table{ width:100%; border:2px solid #CCC }

table td{ border:1px solid #ccc; padding:10px}

</style>

</head>

<body>

<div id='lk_scrollBox'>

    <div id="lk_scrollInner">

        <div id="lk_content">

        <table border="0" cellpadding="0" cellspacing="0">

            <tr>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

            </tr>

            <tr>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

                <td>aaa</td>

            </tr>

        </table>

      </div>

    </div>

    <div id="lk_scrollbar">

        <div id="lk_begin"></div>

        <div id="lk_handle"></div>

        <div id="lk_end"></div>

    </div>

</div>

 <script type="text/javascript">

 //20131114 link by

 jQuery(function(){

    oParent=$('#lk_scrollbar');

    oDiv1 = $('#lk_handle');

    oDiv2 = $('#lk_scrollBox');

    oDiv3 = $('#lk_scrollInner');

    $begin = $('#lk_begin');

    $end = $('#lk_end');

    oDiv1.width(30);

    setTimeout(function(){

        reScrollBox()

    },1000)

    //

    reScrollBox=function (){

        maxW = oDiv3[0].scrollWidth;

        minW =oDiv2.width();

        scale = minW/maxW;

        oDiv1.width(oParent.width()*scale+30);

    }

    //拖动事件方法

    function moveDownSlide(l){

        if(l<0){

            l=0;

        }else if(l > oParent.width()-oDiv1.width()){

            l=oParent.width()-oDiv1.width();

        }

        oDiv1.css('left',l);

        var scale=l/(oParent.width()-oDiv1.width());

        oDiv3.scrollLeft((oDiv3[0].scrollWidth-oDiv2.width())*scale);

    }

    //鼠标滚轮事件

    oDiv3.bind('scroll',function(){

        var scale=(oDiv3[0].scrollWidth-oDiv2.width())/(oParent.width()-oDiv1.width());

        var t = $(this).scrollLeft()/scale;

        oDiv1.css('left',t)

    });

    //鼠标拖动事件

    oDiv1[0].onmousedown=function (ev){

        ev=ev||window.event;

        var disX=ev.clientX - oDiv1.position().left;

        document.onmousemove=function (ev){

            ev=ev||window.event;

            var l=ev.clientX-disX;

            moveDownSlide(l);

        };

        document.onmouseup=function (){

            document.onmousemove=null;

            document.onmouseup=null;

        };

        $(document).bind('selectstart',function(ev){  // 防止页面内容被选中 IE

            return false;

        });

    };

    //键盘上下事件

    $(window).keydown(function(ev){

        var sLeft = oDiv3.scrollLeft();

        var maxW = oDiv3[0].scrollWidth - oDiv3.width();

        switch(ev.keyCode) {

            case 37:

                    funLeft(sLeft - 50 > 0 ? sLeft - 50 : 0);

                    break;

            case 39:

                    funLeft(sLeft + 50 < maxW ? sLeft + 50 : maxW);

                    break;

        }

        function funLeft(sLeft){

            oDiv3.scrollLeft(sLeft)

            var t = oDiv3.scrollLeft()*scale;

            var maxT = oParent.width() - oDiv1.width();

            oDiv1.css('left',(t < maxT ? t : maxT) );

        }

    })

    $begin.click(function(){

        moveDownSlide(0);

    })

    $end.click(function(){

        moveDownSlide(1000);//1000为大于宽度的值

    })

 });

</script>

</body>

</html>

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