超实用的JavaScript代码段 Item5 --图片滑动效果实现

先上图

这里写图片描述

鼠标滑过那张图,显示完整的哪张图,移除则复位:

这里写图片描述

简单的CSS加JS操作DOM实现:

<!doctype html>
<html>
    <head>
        <meta charset="UTF-8">
        <title>sliding doors</title>
        <link rel="stylesheet" href="styles/reset.css" />
        <link rel="stylesheet" href="styles/slidingdoors.css" />
        <script src="scripts/slidingdoors.js"></script>
    </head>
    <body>
        <div id='container'>
            <img src="images/door1.png" alt="1080P神器" title="1080P神器" />
            <img src="images/door2.png" alt="5.5寸四核" title="5.5寸四核" />
            <img src="images/door3.png" alt="四核5寸" title="四核5寸" />
            <img src="images/door4.png" alt="5.7寸机皇" title="5.7寸机皇" />
        </div>
    </body>
</html>

css:

#container {
    height: 477px;
    margin: 0 auto;
    border-right: 1px solid #ccc;
    border-bottom: 1px solid #ccc;
    overflow: hidden;
    position: relative;
}

#container img {
    position: absolute;
    display: block;
    left: 0;
    border-left: 1px solid #ccc;
}

js操作:

window.onload = function() {
    //容器对象
    var box = document.getElementById('container');

    //获得图片NodeList对象集合
    var imgs = box.getElementsByTagName('img');

    //单张图片的宽度
    var imgWidth = imgs[0].offsetWidth;

    //设置掩藏门体露出的宽度
    var exposeWidth = 180;

    //设置容器总宽度
    var boxWidth = imgWidth + (imgs.length - 1) * exposeWidth;
    box.style.width = boxWidth + 'px';

    //设置每道门的初始位置
    function setImgsPos() {
        for (var i = 1, len = imgs.length; i < len; i++) {
            imgs[i].style.left = imgWidth + exposeWidth * (i - 1) + 'px';
        }
    }
    setImgsPos();

    //计算每道门打开时应移动的距离
    var translate = imgWidth - exposeWidth;

    //为每道门绑定事件
    for (var i = 0, len = imgs.length; i < len; i++) {
        //使用立即调用的函数表答式,为了获得不同的i值
        (function(i) {
            imgs[i].onmouseover = function() {
                //先将每道门复位
                setImgsPos();
                //打开门
                for (var j = 1; j <= i; j++) {
                    imgs[j].style.left = parseInt(imgs[j].style.left, 10) - translate + 'px';
                    //imgs[j].style.left = j*exposeWidth +"px";
                }
            };
            imgs[i].onmouseout = function(){
                setImgPos();
            };
        })(i);
    }
};  

版权声明:本文为小平果原创文章,转载请注明:http://blog.csdn.net/i10630226

posted @ 2015-11-08 16:37  dingxiaoyue  阅读(314)  评论(1编辑  收藏  举报