• 简单抽屉效果的实现


    CSS:
    <style type="text/css">
            #bodycontainer
            {
                height: 66px;
            }
            #leftcontainer
            {
                background-color: #C5C5C5;
                float: left;
                border: 1px solid #C5C5C5;
            }
    </style>
    
    <script src="js/slider.js" type="text/javascript"></script>

    aspx:

    <div id="bodycontainer">
        <div id="leftcontainer+<%#Container.ItemIndex+1 %>" style="display:none;">
        <%#hiSoft.AMS.BLL.BAssetAlteration.getActionLinksString(Eval("ID"), g_Sites, g_Permission)%>
        </div>
        <div>
            <img title="show" alt="open" src="Images/x16.gif" id="showleft+<%#Container.ItemIndex+1 %>" onclick="var leftslider = new slider(this,1,50,85,20,1,20);leftslider.show();this.style.display='none';Show(this);"/>
            <script type="text/javascript">
                function Show(a) {
                    //a.style.display = 'none';
                    document.getElementById(a.parentElement.children[2].id).style.display = '';
                }
            </script>
            <img title="hidden" alt="close" src="Images/x16.gif" id="hideleft+<%#Container.ItemIndex+1 %>"  onclick="var leftslider = new slider(this,1,50,85,20,1,20);leftslider.hide();this.style.display='none';document.getElementById(this.parentElement.children[0].id).style.display='';" style="display:none " />
        </div>
        </div>
     

    slider.js:

    代码
    1 slider.names = new Array();
    2  function slider()
    3 {
    4 this.id = slider.names.length;
    5 slider.names[this.id] = this;
    6 this.target = document.getElementById(arguments[0].parentElement.parentElement.children[0].id); //第一个参数:被操作div的id
    7   this.direction = arguments[1];//第二个参数:div弹出的方向
    8   this.height = arguments[2];//第三个参数:div的高度
    9   this.width = arguments[3];//第四个参数:div的宽度
    10   this.step = arguments[4];//第五个参数:希望动作分解为几步完成
    11   this.timer = 10 * arguments[5];//第六个参数:每个动作的间隔时间,10ms为一个单位
    12 this.startopa = arguments[6];//第七个参数:div开始的透明度
    13 this.sparent = this.target.parentNode;//获取操作div的父容器
    14 this.intervalid = null;//循环定时的id
    15 this.i = 0;//循环的计数器
    16 this.status = 0;//slider层的状态:0-可以展开;1-不可以展开
    17 this.target.style.display = "none";//先将div隐去
    18 return this;
    19 }
    20 slider.prototype.initialize = function()
    21 {
    22 this.sparent.style.overflow = "hidden";//设置父容器overflow
    23 this.target.style.width = Number(this.width) + 'px';//设置目标div的宽度
    24 this.target.style.height = Number(this.height) + 'px';//设置目标div的高度
    25 this.target.style.position = "";//设置目标div的定位方式
    26 this.target.style.display = "";//设置目标div的显示方式
    27 this.target.style.filter = 'Alpha(opacity=' + Number(this.startopa) + ')';//设置目标div的透明度为初始透明度
    28 this.target.style.overflow = "hidden";//设置overflow
    29 switch(this.direction)//根据弹出方向设定div的margin
    30 {
    31 case 1://left to right
    32 this.target.style.marginLeft = "-" + this.width + "px";
    33 break;
    34 case 2://top to bottom
    35 this.target.style.marginTop = "-" + this.height + "px";
    36 break;
    37 case 3://right to left
    38 this.target.style.marginRight = "-" + this.width + "px";
    39 break;
    40 }
    41 }
    42 slider.prototype.show = function()
    43 {
    44 if (this.status==0)//检查状态是否已经展开
    45 {
    46 this.initialize();//操作div及其父容器的初始化
    47 this.intervalid = window.setInterval("slider.names["+this.id+"].cycle()",this.timer);//设置动作循环
    48 }
    49 }
    50 slider.prototype.hide = function()
    51 {
    52 if (this.status==1)//检查状态是否已经展开
    53 {
    54 this.intervalid = window.setInterval("slider.names["+this.id+"].decycle()",this.timer);//设置动作循环
    55 }
    56 }
    57 slider.prototype.cycle = function() //单步循环动作
    58 {
    59 var opa = this.target.style.filter.split("=")[1].split(")")[0]//获取目标div的透明度数值
    60 var opastep = Math.round(((100 - Number(opa)) / this.step)+2.5);//计算每步增加的透明度
    61 var nopa = Number(opa) + Number(opastep);//当前透明度
    62 if (nopa>100){this.target.style.filter = 'Alpha(opacity=100)';}else{this.target.style.filter = 'Alpha(opacity=' + String(nopa) + ')';}//给div透明度赋值
    63 switch(this.direction)//根据弹出方向计算和设定div的动作
    64 {
    65 case 1: //left to right
    66 var opx = this.target.style.marginLeft.split("px")[0];
    67 var pxstep = Math.round((this.width / this.step)+0.5);
    68 var npx = Number(opx) + Number(pxstep);
    69 if (npx>0){this.target.style.marginLeft = '0px';}else{this.target.style.marginLeft = String(npx) + 'px';}
    70 break;
    71 case 2: //top to bottom
    72 var opx = this.target.style.marginTop.split("px")[0];
    73 var pxstep = Math.round((this.height / this.step)+0.5);
    74 var npx = Number(opx) + Number(pxstep);
    75 if (npx>0){this.target.style.marginTop = '0px';}else{this.target.style.marginTop = String(npx) + 'px';}
    76 break;
    77 case 3: //right to left
    78 var opx = this.target.style.marginRight.split("px")[0];
    79 var pxstep = Math.round((this.width / this.step)+0.5);
    80 var npx = Number(opx) + Number(pxstep);
    81 if (npx>0){this.target.style.marginRight = '0px';}else{this.target.style.marginRight = String(npx) + 'px';}
    82 break;
    83 }
    84 this.i++ //计数器+1
    85 if (this.i>(this.step-1)){window.clearInterval(this.intervalid);this.i=0;this.status=1;} //循环完毕,清除循环定时
    86 }
    87 slider.prototype.decycle = function() //单步循环动作
    88 {
    89 var opa = this.target.style.filter.split("=")[1].split(")")[0]//获取目标div的透明度数值
    90 var opastep = Math.round(((100 - Number(opa)) / this.step)+2.5)*2;//计算每步增加的透明度
    91 var nopa = Number(opa) - Number(opastep);//当前透明度
    92 if (nopa<this.startopa){this.target.style.filter = 'Alpha(opacity=' + this.startopa + ')';}else{this.target.style.filter = 'Alpha(opacity=' + String(nopa) + ')';}//给div透明度赋值
    93 switch(this.direction)//根据弹出方向计算和设定div的动作
    94 {
    95 case 1: //left to right
    96 var opx = this.target.style.marginLeft.split("px")[0];
    97 var pxstep = Math.round((this.width / Math.round(this.step*0.5))+0.5);
    98 var npx = Number(opx) - Number(pxstep);
    99 if (Math.abs(npx)>this.width+2){this.target.style.marginLeft = '-' + this.width + 'px';}else{this.target.style.marginLeft = String(npx) + 'px';}
    100 break;
    101 case 2: //top to bottom
    102 var opx = this.target.style.marginTop.split("px")[0];
    103 var pxstep = Math.round((this.height / Math.round(this.step*0.5))+0.5);
    104 var npx = Number(opx) - Number(pxstep);
    105 if (Math.abs(npx)>this.height+2){this.target.style.marginTop = '-' + this.height + 'px';}else{this.target.style.marginTop = String(npx) + 'px';}
    106 break;
    107 case 3: //right to left
    108 var opx = this.target.style.marginRight.split("px")[0];
    109 var pxstep = Math.round((this.width / Math.round(this.step*0.5))+0.5);
    110 var npx = Number(opx) - Number(pxstep);
    111 if (Math.abs(npx)>this.width+2){this.target.style.marginRight = '-' + this.width + 'px';}else{this.target.style.marginRight = String(npx) + 'px';}
    112 break;
    113 }
    114 this.i++ //计数器+1
    115 if (this.i>(Math.round(this.step*0.5)-1)){window.clearInterval(this.intervalid);this.i=0;this.status=0;this.target.style.display = "none";} //循环完毕,清除循环定时
    116 }
    117
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  • 原文地址:https://www.cnblogs.com/pfs1314/p/1681662.html
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