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
