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/**
* Yet another jquery color picker plugin,simple is the best.
* @author levinhuang
* @site http://www.vivasky.com
* @note It's the jquery version of "Prototype color picker" by Myles Eftos,BUT a refined version.
* Visit the raw prototype version here:myles.eftos.id.au/blog/2006/04/13/javascript-colour-picker-based-on-prototype/
*/
;(function($) {
// Private functions.
var p = {};
p.getId=function(){
var id=$(document).data("icolorID");
if(!id){id=1;}else{id=id+1;};
$(document).data("icolorID",id);
return id;
};
p.colorMap=["00","33","66","99","AA","CC","EE","FF"];
p.M = function($t,opts){
this.$t=$t;
this.$layout=null;/* set after _init */
this.$colors=null;
this.$tb=null; /* color element table */
this.flat=opts.flat;
this.colors=opts.colors;
this.trigger=opts.trigger;
this.className=opts.cl;
this.showInput=opts.showInput;
this.defaultColor=!(this.colors&&this.colors.length>0);
this.curColor="";
this._opts=opts;
this._init();
};
p.M.prototype={
_init:function(){
this._initColors();
this._initCbk();
this._initLayout();
},
_initColors:function(){
if(!this.defaultColor) return;
for(var i=0;i<p.colorMap.length;i++)
this.colors.push(p.colorMap[i]+p.colorMap[i]+p.colorMap[i]);
//blue
for(var i=1;i<p.colorMap.length;i++){
if(i!=4&&i!=6)
this.colors.push(p.colorMap[0]+p.colorMap[0]+p.colorMap[i]);
};
for(var i=1;i<p.colorMap.length;i++){
if(i!=2&&i!=4&&i!=6&&i!=7)
this.colors.push(p.colorMap[i]+p.colorMap[i]+p.colorMap[7]);
};
//green
for(var i=1;i<p.colorMap.length;i++){
if(i!=4&&i!=6)
this.colors.push(p.colorMap[0]+p.colorMap[i]+p.colorMap[0]);
};
for(var i=1;i<p.colorMap.length;i++){
if(i!=2&&i!=4&&i!=6&&i!=7)
this.colors.push(p.colorMap[i]+p.colorMap[7]+p.colorMap[i]);
};
//red
for(var i=1;i<p.colorMap.length;i++){
if(i!=4&&i!=6)
this.colors.push(p.colorMap[i]+p.colorMap[0]+p.colorMap[0]);
};
for(var i=1;i<p.colorMap.length;i++){
if(i!=2&&i!=4&&i!=6&&i!=7)
this.colors.push(p.colorMap[7]+p.colorMap[i]+p.colorMap[i]);
};
//yellow
for(var i=1;i<p.colorMap.length;i++){
if(i!=4&&i!=6)
this.colors.push(p.colorMap[i]+p.colorMap[i]+p.colorMap[0]);
};
for(var i=1;i<p.colorMap.length;i++){
if(i!=2&&i!=4&&i!=6&&i!=7)
this.colors.push(p.colorMap[7]+p.colorMap[7]+p.colorMap[i]);
};
//cyan
for(var i=1;i<p.colorMap.length;i++){
if(i!=4&&i!=6)
this.colors.push(p.colorMap[0]+p.colorMap[i]+p.colorMap[i]);
};
for(var i=1;i<p.colorMap.length;i++){
if(i!=2&&i!=4&&i!=6&&i!=7)
this.colors.push(p.colorMap[i]+p.colorMap[7]+p.colorMap[7]);
};
//megenta
for(var i=1;i<p.colorMap.length;i++){
if(i!=4&&i!=6)
this.colors.push(p.colorMap[i]+p.colorMap[0]+p.colorMap[i]);
};
for(var i=1;i<p.colorMap.length;i++){
if(i!=2&&i!=4&&i!=6&&i!=7)
this.colors.push(p.colorMap[7]+p.colorMap[i]+p.colorMap[7]);
};
},
_initLayout:function(){
var _this=this;
//beforeInit callback
var go=true;
if(this._opts.beforeInit){go=this._opts.beforeInit();};
if(!go) return;
//build the layout
this._opts.col=this._opts.col||this.colors.length;
var colNum=this.defaultColor?8:(this._opts.col<1?1:this._opts.col);
var html='<div class="'+this.className+'" id="icolor_'+p.getId()+'">',title="";
html+='<table class="icolor_ct">';
for(var i=0;i<this.colors.length;i++){
if(i%colNum==0){
html+="<tr>";
};
title=this._opts.title?(' title="#'+this.colors[i]+'"'):"";
html+='<td style="background-color:#'+this.colors[i]+';"'+title+' abbr="'+this.colors[i]+'"></td>';
if(i%colNum==(colNum-1)){
html+="</tr>";
};
};
html+='</table>';
if(this.showInput){
html+='<div class="icolor_ft"><input type="text" name="icolor" class="icolor_tbx"/>'+this._opts.okTpl+'</div>';
};
html+='</div>';
//insert into the dom tree
this.$layout=$(html);
this.$tb=this.$layout.find("table");
this.$colors=this.$tb.find("td");
if(this.flat){
this.$t.append(this.$layout.addClass("icolor_flat"));
}else{
$("body").append(this.$layout.hide());
};
//register event handlers
this.$colors.click(function(e){
if(this.className=="hot") return;
_this.$colors.removeClass();
$(this).addClass("hot");
_this.curColor="#"+this.abbr;
if(_this._$ipt) _this._$ipt.val(_this.curColor);
_this.submit();
});
if(this._opts.hover){
this.$colors.mouseenter(function(e){
var c="#"+this.abbr;
_this._opts.onOver?_this._opts.onOver(c):(function(){
_this._$ipt.css("background-color",c);
})();
});
this.$tb.mouseleave(function(e){
_this._opts.onOut?_this._opts.onOut():(function(){
_this._$ipt.css("background-color","");
})();
});
};
if(this.showInput){
this._$ipt=this.$layout.find(".icolor_tbx").keyup(function(e){
if(e.keyCode!=13) return;
var v="";
if((v=_this._$ipt.val())==""||v.indexOf("#")!=0) return;
_this.curColor=v;
_this.submit();
});
this.$layout.find(".icolor_ok").click(function(e){
var v="";
if((v=_this._$ipt.val())==""||v.indexOf("#")!=0) return false;
_this.curColor=v;
_this.submit();
return false;
});
};
if(!this.flat){
this.$t.bind(this.trigger,function(e){
if(_this.$layout.is(":hidden"))
_this.show();
else
_this.$layout.hide();
return false;
});
};
//afterInit callback
if(this._opts.afterInit)
this._opts.afterInit();
},
show:function(){
var _this=this;
var pos=this.$t.offset(),cbk=this._opts.onShow?function(){_this._opts.onShow(pos);}:null;
this.$layout.css({left:pos.left,top:pos.top+this.$t.height()});
if(this._opts.slide){
this.$layout.slideDown("fast",cbk);
}else{
this.$layout.show(0,cbk);
};
},
submit:function(){
if(this._opts.onSelect){this._opts.onSelect(this.curColor);};
if((!this.flat)&&this._opts.autoClose){
this.$layout.hide();
};
},
/**
* Generate a proxy function for the specified function 'f',
* which will set the 'this' keyword inside the f to the current p.M instance.
* @param {Function} f
*/
_proxy:function(f){
if(!f) return null;
var i=this;
return function(){
return f.apply(i,arguments);
};
},
_initCbk:function(){
//onShow
this._opts.onShow=this._proxy(this._opts.onShow);
//onSelect
this._opts.onSelect=this._proxy(this._opts.onSelect);
//beforeInit
this._opts.beforeInit=this._proxy(this._opts.beforeInit);
//afterInit
this._opts.afterInit=this._proxy(this._opts.afterInit);
//onOver
this._opts.onOver=this._proxy(this._opts.onOver);
//onOut
this._opts.onOut=this._proxy(this._opts.onOut);
}
};
//main plugin body
$.fn.icolor = function(opts) {
// Set the options.
opts = $.extend({}, $.fn.icolor.defaults, opts);
// Go through the matched elements and return the jQuery object.
return this.each(function() {
var $i=$(this);
if(!$i.data("icolor"))
$i.data("icolor",new p.M($i,opts));
});
};
// Public defaults.
$.fn.icolor.defaults = {
trigger: 'click', /* event name for triggering to show icolor */
flat:false, /* inline mode */
col:8, /* column number of icolor */
colors:[], /* user predefined colors */
showInput:false, /* show a input box after the color elements */
cl:"icolor", /* css class for icolor */
title:true, /* whether include title attribute for the color element */
autoClose:true, /* auto-close after selecting a color */
slide:true, /* use the 'slideDown' effect when showing icolor */
okTpl:'', /* ok button template such as <button class="icolor_ok">ȷ��<button> */
onShow:null, /* onShow callback */
onSelect:null, /* onSelect callback */
beforeInit:null, /* beforeInit callback */
afterInit:null, /* afterInit callback */
onOver:null, /* callback for mouseover a color element */
onOut:null, /* callback for mouseout the whole icolor */
hover:true /* whether register hover event handlers to icolor */
};
//public methods
$.fn.icolor.isDark=function(c){
var colr = parseInt(c.substr(1), 16);
return (colr >>> 16) // R
+ ((colr >>> 8) & 0x00ff) // G
+ (colr & 0x0000ff) // B
< 500;
};
})(jQuery);