JavaScript颜色板调用
1定义颜色板
<HTML>
<HEAD>
<TITLE>颜色板</TITLE>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script language="javascript">
var drag=false, cx=0, cy=0, o = parent.document.getElementById("_colorpalette");
function document.onmousemove(){
if(drag){
if(o.style.left=='')o.style.left=0;
if(o.style.top=='')o.style.top=0;
o.style.left = parseInt(o.style.left) + window.event.clientX-cx;
o.style.top = parseInt(o.style.top) + window.event.clientY-cy;
}
}
function document.onmousedown(){ dragStart(); }
function document.onmouseup() {drag=false;}
function document.onmouseout() { drag=false; }
function dragStart(){cx=window.event.clientX; cy=window.event.clientY; drag=true;}
function InitColorPalette() {
var x = document.getElementsByTagName('td');
for (var i=0; i<x.length; i++) {
x.onmouseover = over;
x.onmouseout = out;
x.onclick = click;
}
setColor( parent.getColorByPalette() ) ;
}
function setColor(color){
document.getElementById("colPreview").style.backgroundColor = color;
document.getElementById("hexColValue").value = color;
}
//Mouse over palette effects on
function over() {
var e = window.event.srcElement;
e.style.color = reverseColor(e.id) ;
e.innerHTML = 'O';
setColor(e.id);
}
//Mouse 移开
function out() {
this.innerHTML='';
}
//Mouse 点击
function click() {
selectColor(this.id);
}
function reverseColor(color){
var c = (color.indexOf("#")==-1 ) ? color : color.substring(1);
var len = c.length ;
var i,h;
var re = '#';
for(i=0;i<len ;i++){
h = parseInt("0x"+c.substring(i,i+1)) ;
re += (15-h).toString(16).toUpperCase() ;
}
return re;
}
//颜色选取
function selectColor(color){
if( color!='' && color.toString().match(/^#[0-9|A-F|a-f]{6}$/)==null ){
alert("颜色代码错误！");
return false;
}
parent.selectColorPalette(color);
}
</script>
<style type="text/css">
body{ margin:2px; background-color:#DCDCDC;}
td { overflow:hidden; cursor:default; color:#FFFFFF; font-size:8px; font-family:"Verdana";}
input {border: 1px; margin-top:1px; margin-left:1px; background-color: #ffffff; width:58px; font-family: Verdana; font-size: 11px; color: #000000;}
</style>
</head>
<body>
<div style="width:178px; height:20px; margin:3px 0px 3px 0px;cursor:move;">
<div id="colPreview" style=" border:1px solid #000000; width:25px; height:20px; float:left;"></div>
<div style="float:left;height:15px; width:80px;"><input type="text" id="hexColValue" value="" size="10"/></div>
<div style="float:left; width:46px;"><img style="cursor:pointer" src="nocolor.gif" width="18" align="absmiddle"></div>
<div style="float:left; font-size:12px; cursor:pointer; padding-top:3px;">关闭</div>
</div>
<table border="0" cellpadding="0" cellspacing="1" bordercolor="#000000" bgcolor="#000000" >
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<td id="#CCCCCC" bgcolor="#CCCCCC" height="10" width="10"></td>
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<td id="#FF99CC" bgcolor="#FF99CC" height="10" width="10"></td>
<td id="#FFCCCC" bgcolor="#FFCCCC" height="10" width="10"></td>
<td id="#FFFFCC" bgcolor="#FFFFCC" height="10" width="10"></td>
</tr>
<tr>
<td id="#FF00FF" bgcolor="#FF00FF" height="10" width="10"></td>
<td id="#9933FF" bgcolor="#9933FF" height="10" width="10"></td>
<td id="#9966FF" bgcolor="#9966FF" height="10" width="10"></td>
<td id="#9999FF" bgcolor="#9999FF" height="10" width="10"></td>
<td id="#99CCFF" bgcolor="#99CCFF" height="10" width="10"></td>
<td id="#99FFFF" bgcolor="#99FFFF" height="10" width="10"></td>
<td id="#CC00FF" bgcolor="#CC00FF" height="10" width="10"></td>
<td id="#CC66FF" bgcolor="#CC66FF" height="10" width="10"></td>
<td id="#CC99FF" bgcolor="#CC99FF" height="10" width="10"></td>
<td id="#CCCCFF" bgcolor="#CCCCFF" height="10" width="10"></td>
<td id="#CCFFFF" bgcolor="#CCFFFF" height="10" width="10"></td>
<td id="#FF00FF" bgcolor="#FF00FF" height="10" width="10"></td>
<td id="#FF66FF" bgcolor="#FF66FF" height="10" width="10"></td>
<td id="#FF99FF" bgcolor="#FF99FF" height="10" width="10"></td>
<td id="#FFCCFF" bgcolor="#FFCCFF" height="10" width="10"></td>
<td id="#FFFFFF" bgcolor="#FFFFFF" height="10" width="10"></td>
</tr>
</table>
</body>
</html>
2JS调用
document.write("<div id='_colorpalette' onmouseout='hidescolorpalettelowly()' onmouseover='colorpaletteMenuMouseOver()' style='position: absolute; z-index: 9998; width: 184; height: 164; display: none;border-left:2px solid #F3F3F3;border-top:2px solid #F3F3F3; border-bottom:2px solid #999999;border-right:2px solid #999999;'>");
var _palettecolor = '#000000';
var script_t = document.getElementsByTagName('script');
var js_url='';
for (var i=0; i<script_t.length; i++) {
if( -1 != script_t.src.indexOf("colorpalette.js") ){ js_url = script_t.src.replace(/colorpalette.js/,'colorpalette.html') ; break;}
}
document.write("<iframe name='_colorpaletteIframe' src='"+js_url+"' scrolling=no frameborder=0 width=100% height=100%></iframe></div>");
var e_colorpalette = document.getElementById("_colorpalette");
function setcolorpaletteXY(){
var e = window.event.srcElement;
var l=e.offsetLeft;
var t=e.offsetTop;
while(e=e.offsetParent){
l+=e.offsetLeft;
t+=e.offsetTop;
}
e_colorpalette.style.left = l-3;
e_colorpalette.style.top = t+16;
}
function hiddencolorpalette(){e_colorpalette.style.display = "none";};
function showcolorpalette(){e_colorpalette.style.display = "block";setcolorpaletteXY();};
var colorpaletteiTime;
function hidescolorpalettelowly(){
//colorpaletteiTime = window.setTimeout("hiddencolorpalette()",700);
}
function colorpaletteMenuMouseOver(){
//clearTimeout(colorpaletteiTime);
}
function setColorPalette(color){
_palettecolor = color;
}
function getColorByPalette(){
return _palettecolor;
}
3使用实例
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>无标题页</title>
<script language="JavaScript" type="text/JavaScript">
var dEL,sEL;
function SelectColor(what){
dEL = document.getElementById("d_"+what);
sEL = document.getElementById("s_"+what);
setColorPalette(dEL.value);
showcolorpalette();
}
function selectColorPalette(color){
if (color) {
dEL.value=color;
sEL.style.backgroundColor=color;
setColorPalette(color);
}else{
dEL.value='';
sEL.style.backgroundColor='';
}
hiddencolorpalette();
}
</script>
<script type="text/javascript" src="js/colorpalette.js"></script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input id="d_tcolor" name="titlecolor" size="9" type="text" />
<img id="s_tcolor" border="0" src="rect.gif" style="cursor: hand" width="18"/></div>
</form>
</body>
</html>
