打造个性化的Select(可编辑)- Javascript

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Javascript 中的打造个性化的Select(可编辑)

出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-09-12 浏览: 220 ::

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一个很Cool的JS菜单效果真正的连续滚动图片

由于系统自带的Select实在是不好用,这里我用javascript写了一个全新的Select.
功能:
1.可编辑的Select
2.长度可以随意修改
3.可以遮盖系统Select
4.支持forms
5.支持CSS修改外观
6.修正在IE 5.0上运行出错的问题
7.支持使用js脚本
使用方法
[b]var 实体化变量=new editselect(名字,长度,默认字符串,宽度,高度,只读)[/b]
[b]实体化变量.add(option数值,JS脚本)[/b]
这只是一个测试版,很多功能没有完善,比如没有区分value和caption等等,希望大家提出宝贵意见.

点击运行可以看到效果:

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>EditSelect</title>
<script>
function isIE(){
a=navigator.appVersion.split(";")
b=a[1].split(" ")
return parseFloat(b[2])
}
if (isIE()<5.5)
{ scHTML='<div id="selectcontent" class="selectdiv" style="visibility:hidden;"><div id="selecthtml" class="selectcontent">selectÁÐ表</div></div>'
}
else
{ scHTML='<div id="selectcontent" class="selectdiv" style="visibility:hidden;"><iframe id=selframe frameborder=0 height=100%></iframe><div id="selecthtml" class="selectcontent">selectÁÐ表</div></div>'
}
document.write(scHTML)
vDiv=selectcontent
vDivHtml=selecthtml
function editselect(name,size,defaulttext,width,height,readonly){ var combo=this; this.options=new Array(); this.oj=new Array(); this.name=name; this.divname=name+'_div'; this.buttonname=name+'_button'; this.tablename=name+'_table'; this.htmltable=name+'_html' if (!height) this.height=0; else this.height=height if (width) this.width=width if (!size) size=8 if (!defaulttext) defaulttext="" if (!readonly || readonly==0) {readonly="" }else {if (readonly==1) readonly="readonly style=cursor:default";this.readonly=1} esHTML='<div id='+this.divname+'>' +'<table id='+this.tablename+' cellpadding=0 cellspacing=0 class=select><tr><td bgcolor=#FFFFFF>' +'<input type=text class=selecttext size="'+size+'" name='+name+' value="'+defaulttext+'" '+readonly+'><td><button class=selectbutton id='+this.buttonname+'>6</td></tr></table>' +'</div>' document.write(esHTML) this.sbutton=eval("document.all."+this.buttonname) if (this.readonly==1) eval("document.all."+this.name).onclick=function(){combo.show()} this.sbutton.onclick=function(){combo.show()} this.show=function(){ pDiv=eval(combo.divname) pTable=eval(combo.tablename) var vHTML='<table id=htmltable cellspacing="0" cellpadding="2" bgcolor="#ffffff" class="selecttable" width=100%>' for (i=0;i<combo.options.length;i++) { vHTML+='<tr onmouseover="mo(this)" onmouseout="mu(this)" onclick="document.all.'+combo.name+'.value=this.innerText;selectcontent.style.visibility=\'hidden\';'+combo.oj[i]+'"><td nowrap>'+combo.options[i] } vHTML+="</table>" vDivHtml.innerHTML=vHTML vtop=pDiv.offsetTop+pDiv.offsetHeight vleft=pDiv.offsetLeft+2 vParent = pDiv.offsetParent; while (vParent.tagName.toUpperCase() != "BODY") { vleft += vParent.offsetLeft; vtop += vParent.offsetTop; vParent = vParent.offsetParent; } var redge=document.body.clientWidth-vleft var bedge=document.body.clientHeight-vtop if (!combo.width) {vDiv.style.width=pTable.offsetWidth} else {vDiv.style.width=combo.width} if (combo.height==0) { vDiv.style.pixelHeight=parseInt(htmltable.offsetHeight)+2 vDivHtml.style.pixelHeight=parseInt(htmltable.offsetHeight)+2 } else { if (htmltable.offsetHeight>combo.height) { vDiv.style.pixelHeight=combo.height vDivHtml.style.pixelHeight=combo.height } else { vDiv.style.pixelHeight=parseInt(htmltable.offsetHeight)+2 vDivHtml.style.pixelHeight=parseInt(htmltable.offsetHeight)+2 } } vDivHtml.scrollTop=0 if (redge<vDiv.offsetWidth) vDiv.style.left=vleft-1-(vDiv.offsetWidth-redge) else vDiv.style.left=vleft-1 if (bedge<vDiv.offsetHeight) //vDiv.style.top=vtop-vDiv.offsetHeight-pDiv.offsetHeight vDiv.style.top=vtop-vDiv.offsetHeight+bedge else vDiv.style.top=vtop vDivHtml.style.width=parseInt(vDiv.style.width) vDiv.style.visibility="visible" } this.add=function(text,js){ combo.options[combo.options.length]=text combo.oj[combo.oj.length]=js } this.clearall=function(){ combo.options=new Array() } this.about=function(){ }
}
function mo(obj){
obj.style.backgroundColor="#000099"
obj.style.color="#ffffff"
}
function mu(obj){
obj.style.backgroundColor=""
obj.style.color="#000000"
}
document.onmousedown=function(){
if (vDiv.style.visibility=="visible"){
mx=event.x + document.body.scrollLeft
my=event.y + document.body.scrollTop;
x1=vDiv.offsetLeft
y1=vDiv.offsetTop
x2=vDiv.offsetLeft+vDiv.offsetWidth
y2=vDiv.offsetTop+vDiv.offsetHeight
if (mx<x1 || my<y1 || x2<mx || y2<my) { vDiv.style.visibility='hidden' }
}
}</script>
<style>
.selecttext{
border:0px
height: 16;
font-family:arial;
font-size:12px;
}
.selectbutton{
font-family:webdings;
font-size:10px;
height: 19;
width: 16;
border:1px solid #83A5EB;
line-height:0px;
padding-bottom:3px;
background-color:#D1E0FD
}
.selecttable{
font-family:arial;
font-size:12px;
cursor:default;
}
.selectcontent
{
position: absolute;
top:0;
left:0;
overflow:auto;
border:1px solid #000000
}
.selectdiv
{
position: absolute;
width:100;
overflow:hidden;
}
.select{
border-collapse: collapse;
border:1px solid #7F9DB9
}
</style>
</head>
<body bgcolor="#83A5EB">
<table border="0" width="100%"> <tr> <td width="151" align="center"><font size="2">可编辑的Select</font></td> <td><script>
var sel1=new editselect("select1","25","可编辑的Select","");
sel1.add("这是一个可以编辑的Select")
sel1.add("支持CSS")
sel1.add("可以通过CSS，修改外形")
sel1.add("突破原来的Select诸多限制")
</script></td> </tr> <tr> <td width="151" align="center"><font size="2">长度可以随意修改
可以设置为只读</font></td> <td> <script>
var sel2=new editselect("select2","20","长度可以随意修改",250,82,1);
sel2.add("这是一个可以编辑的Select")
sel2.add("支持CSS")
sel2.add("可以通过CSS，修改外形")
sel2.add("作者:舜子制作")
sel2.add("MSN:puterjam@msn.com")
</script> </td> </tr> <tr> <td width="151" align="center"><font size="2">可以遮盖系统Select</font></td> <td> <script>
var sel3=new editselect("select3","25","可以遮盖系统Select","",41);
sel3.add("这是一个可以编辑的Select")
sel3.add("支持CSS")
sel3.add("可以通过CSS，修改外形")
sel3.add("突破原来的Select诸多限制")
</script> </td> </tr> <tr> <td width="151" align="right">　</td> <td><select><option>系统的Select</option></select>　</td> </tr>
</table>
</body>
</html>

[Ctrl+A 全选提示:你可先修改部分代码,再按运行]

一个很Cool的JS菜单效果真正的连续滚动图片

Javascript 中的 打造个性化的Select(可编辑)

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Javascript 中的打造个性化的Select(可编辑)