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jquery颜色选择器

2024-07-01 23:50:40   225人阅读

 

 

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第二种：纯JAVASCRIPT:

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2311">
<title>DW调色板</title>
<script>
var ColorHex=new Array(‘00‘,‘33‘,‘66‘,‘99‘,‘CC‘,‘FF‘)
var SpColorHex=new Array(‘FF0000‘,‘00FF00‘,‘0000FF‘,‘FFFF00‘,‘00FFFF‘,‘FF00FF‘)
var current=null

function getEvent()
{
if(document.all)
{
   return window.event;//如果是ie
}
func=getEvent.caller;
while(func!=null)
{
   var arg0=func.arguments[0];
   if(arg0)
   {
    if((arg0.constructor==Event || arg0.constructor ==MouseEvent)||(typeof(arg0)=="object" && arg0.preventDefault && arg0.stopPropagation))
    {
     return arg0;
    }
   }
   func=func.caller;
}
return null;
}


function intocolor()
{
var colorTable=‘‘
for (i=0;i<2;i++)
{
for (j=0;j<6;j++)
   {
    colorTable=colorTable+‘<tr height=12>‘
    colorTable=colorTable+‘<td width=11 style="background-color:#000000">‘

    if (i==0){
    colorTable=colorTable+‘<td width=11 style="background-color:#‘+ColorHex[j]+ColorHex[j]+ColorHex[j]+‘">‘}
    else{
    colorTable=colorTable+‘<td width=11 style="background-color:#‘+SpColorHex[j]+‘">‘}


    colorTable=colorTable+‘<td width=11 style="background-color:#000000">‘
    for (k=0;k<3;k++)
     {
       for (l=0;l<6;l++)
       {
        colorTable=colorTable+‘<td width=11 style="background-color:#‘+ColorHex[k+i*3]+ColorHex[l]+ColorHex[j]+‘">‘
       }
     }
}
}
colorTable=‘<table width=253 border="0" cellspacing="0" cellpadding="0" style="border:1px #000000 solid;border-bottom:none;border-collapse: collapse" bordercolor="000000">‘
           +‘<tr height=30><td colspan=21 bgcolor=#cccccc>‘
           +‘<table cellpadding="0" cellspacing="1" border="0" style="border-collapse: collapse">‘
           +‘<tr><td width="3"><td><input type="text" name="DisColor" id="DisColor" size="6" disabled style="border:solid 1px #000000;background-color:#ffff00"></td>‘
           +‘<td width="3"><td><input type="text" name="HexColor" id="HexColor" size="7" style="border:inset 1px;font-family:Arial;" value="http://www.mamicode.com/#000000"></td></tr></table></td></table>‘
           +‘<table border="1" cellspacing="0" cellpadding="0" style="border-collapse: collapse" bordercolor="000000" onm ouseover="doOver()" onm ouseout="doOut()" onclick="doclick()" style="cursor:hand;">‘
           +colorTable+‘</table>‘;
colorpanel.innerHTML=colorTable
}

function doOver() {
var evt=getEvent();
var element=evt.srcElement || evt.target;
var DisColor=document.getElementById("DisColor");
var HexColor=document.getElementById("HexColor");
if ((element.tagName=="TD") && (current!=element)) {
        if (current!=null){current.style.backgroundColor = current._background}
        element._background = element.style.backgroundColor
        DisColor.style.backgroundColor = rgbToHex(element.style.backgroundColor)
        HexColor.value = rgbToHex(element.style.backgroundColor)
        element.style.backgroundColor = "white"
        current = element
    }
}

/**
* firefox 的颜色是以(RGB())出现，进行转换
*/
function rgbToHex(aa)
{
if(aa.indexOf("rgb") != -1)
{
    aa=aa.replace("rgb(","")
    aa=aa.replace(")","")
    aa=aa.split(",")
    r=parseInt(aa[0]);
    g=parseInt(aa[1]);
    b=parseInt(aa[2]);
    r = r.toString(16);
    if (r.length == 1) { r = ‘0‘ + r; }
    g = g.toString(16);
    if (g.length == 1) { g = ‘0‘ + g; }
    b = b.toString(16);
    if (b.length == 1) { b = ‘0‘ + b; }
    return ("#" + r + g + b).toUpperCase();
}
else
{
    return aa;
}
}

function doOut() {

    if (current!=null) current.style.backgroundColor = current._background;
}

function doclick(){
var evt=getEvent();
var element=evt.srcElement || evt.target;
if (element.tagName=="TD"){
   var bg=rgbToHex(element._background);
   alert("选取颜色: "+bg);
   return bg;
}
}
</script>
</head>

<body onl oad="intocolor()">
<div id="colorpanel" style="position: absolute;">
　</div>
</body>
</html>

 


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