javascript 简单抽屉效果的实现代码
javascript 简单抽屉效果的实现代码
发布时间:2016-12-30 来源:查字典编辑
摘要:css复制代码代码如下:#bodycontainer{height:66px;}#leftcontainer{background-colo...

css

复制代码 代码如下:

<style type="text/css">

#bodycontainer

{

height: 66px;

}

#leftcontainer

{

background-color: #C5C5C5;

float: left;

border: 1px solid #C5C5C5;

}

</style>

aspx:

复制代码 代码如下:

<div id="bodycontainer">

<div id="leftcontainer+<%#Container.ItemIndex+1 %>">

<%#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 %>"/>

<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 %>" />

</div>

</div>

slider.js:

复制代码 代码如下:

slider.names = new Array();

function slider()

{

this.id = slider.names.length;

slider.names[this.id] = this;

this.target = document.getElementById(arguments[0].parentElement.parentElement.children[0].id); //第一个参数:被操作div的id

this.direction = arguments[1];//第二个参数:div弹出的方向

this.height = arguments[2];//第三个参数:div的高度

this.width = arguments[3];//第四个参数:div的宽度

this.step = arguments[4];//第五个参数:希望动作分解为几步完成

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

this.startopa = arguments[6];//第七个参数:div开始的透明度

this.sparent = this.target.parentNode;//获取操作div的父容器

this.intervalid = null;//循环定时的id

this.i = 0;//循环的计数器

this.status = 0;//slider层的状态:0-可以展开;1-不可以展开

this.target.style.display = "none";//先将div隐去

return this;

}

slider.prototype.initialize = function()

{

this.sparent.style.overflow = "hidden";//设置父容器overflow

this.target.style.width = Number(this.width) + 'px';//设置目标div的宽度

this.target.style.height = Number(this.height) + 'px';//设置目标div的高度

this.target.style.position = "";//设置目标div的定位方式

this.target.style.display = "";//设置目标div的显示方式

this.target.style.filter = 'Alpha(opacity=' + Number(this.startopa) + ')';//设置目标div的透明度为初始透明度

this.target.style.overflow = "hidden";//设置overflow

switch(this.direction)//根据弹出方向设定div的margin

{

case 1://left to right

this.target.style.marginLeft = "-" + this.width + "px";

break;

case 2://top to bottom

this.target.style.marginTop = "-" + this.height + "px";

break;

case 3://right to left

this.target.style.marginRight = "-" + this.width + "px";

break;

}

}

slider.prototype.show = function()

{

if (this.status==0)//检查状态是否已经展开

{

this.initialize();//操作div及其父容器的初始化

this.intervalid = window.setInterval("slider.names["+this.id+"].cycle()",this.timer);//设置动作循环

}

}

slider.prototype.hide = function()

{

if (this.status==1)//检查状态是否已经展开

{

this.intervalid = window.setInterval("slider.names["+this.id+"].decycle()",this.timer);//设置动作循环

}

}

slider.prototype.cycle = function() //单步循环动作

{

var opa = this.target.style.filter.split("=")[1].split(")")[0]//获取目标div的透明度数值

var opastep = Math.round(((100 - Number(opa)) / this.step)+2.5);//计算每步增加的透明度

var nopa = Number(opa) + Number(opastep);//当前透明度

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

switch(this.direction)//根据弹出方向计算和设定div的动作

{

case 1: //left to right

var opx = this.target.style.marginLeft.split("px")[0];

var pxstep = Math.round((this.width / this.step)+0.5);

var npx = Number(opx) + Number(pxstep);

if (npx>0){this.target.style.marginLeft = '0px';}else{this.target.style.marginLeft = String(npx) + 'px';}

break;

case 2: //top to bottom

var opx = this.target.style.marginTop.split("px")[0];

var pxstep = Math.round((this.height / this.step)+0.5);

var npx = Number(opx) + Number(pxstep);

if (npx>0){this.target.style.marginTop = '0px';}else{this.target.style.marginTop = String(npx) + 'px';}

break;

case 3: //right to left

var opx = this.target.style.marginRight.split("px")[0];

var pxstep = Math.round((this.width / this.step)+0.5);

var npx = Number(opx) + Number(pxstep);

if (npx>0){this.target.style.marginRight = '0px';}else{this.target.style.marginRight = String(npx) + 'px';}

break;

}

this.i++ //计数器+1

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

}

slider.prototype.decycle = function() //单步循环动作

{

var opa = this.target.style.filter.split("=")[1].split(")")[0]//获取目标div的透明度数值

var opastep = Math.round(((100 - Number(opa)) / this.step)+2.5)*2;//计算每步增加的透明度

var nopa = Number(opa) - Number(opastep);//当前透明度

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

switch(this.direction)//根据弹出方向计算和设定div的动作

{

case 1: //left to right

var opx = this.target.style.marginLeft.split("px")[0];

var pxstep = Math.round((this.width / Math.round(this.step*0.5))+0.5);

var npx = Number(opx) - Number(pxstep);

if (Math.abs(npx)>this.width+2){this.target.style.marginLeft = '-' + this.width + 'px';}else{this.target.style.marginLeft = String(npx) + 'px';}

break;

case 2: //top to bottom

var opx = this.target.style.marginTop.split("px")[0];

var pxstep = Math.round((this.height / Math.round(this.step*0.5))+0.5);

var npx = Number(opx) - Number(pxstep);

if (Math.abs(npx)>this.height+2){this.target.style.marginTop = '-' + this.height + 'px';}else{this.target.style.marginTop = String(npx) + 'px';}

break;

case 3: //right to left

var opx = this.target.style.marginRight.split("px")[0];

var pxstep = Math.round((this.width / Math.round(this.step*0.5))+0.5);

var npx = Number(opx) - Number(pxstep);

if (Math.abs(npx)>this.width+2){this.target.style.marginRight = '-' + this.width + 'px';}else{this.target.style.marginRight = String(npx) + 'px';}

break;

}

this.i++ //计数器+1

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

}

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