jscolorXS

self-contained color picker based on the idea of jscolor

Ce script ne devrait pas être installé directement. C'est une librairie créée pour d'autres scripts. Elle doit être inclus avec la commande // @require https://update.greasyfork.org/scripts/25223/160404/jscolorXS.js

// ==UserScript==
// @name           jscolorXS
// @namespace      edzep.scripts
// @description    self-contained color picker based on the idea of jscolor
// @author         Peter Dematte, http://dematte.at
// @version        0.9x
// @license        GNU Lesser General Public License, http://www.gnu.org/copyleft/lesser.html
// ==/UserScript==

// used with permission of the author, via email exchange in 2011
// minor tweaks to the code have been made, also with permission

/*
 * @version 0.9x
 * @license GNU Lesser General Public License, http://www.gnu.org/copyleft/lesser.html
 * @author  Peter Dematte, http://dematte.at
 * @created 2010-08-03
 * @updated 2010-08-13
 * @status  not finished (~265 lines)
 * @link    http://dematte.at/jscolorXS/
 * based on the idea of jscolor.com
 * inspired by jondyer.name, quirksmode.com
 */

var jscolor = {
	pickerMode : 'HSV',
	pickerBorderColor : '#efefef #a0a0a0 #a0a0a0 #efefef',
	pickerInsetColor : '#a0a0a0 #fff #fff #a0a0a0',
	pickerFaceColor : '#DDDDDD',
	pickerBorder : 2,
	pickerInset : 2,
	pickerFace : 10,
	hash : '#',
	caps : true,
	// ..... etc.

	init : function() {
		var objs = document.getElementsByTagName('input'), cName;
		for (var n=0; n<objs.length; n++) if (objs[n].className.indexOf('color') != -1) {
			// cName = objs[n].className.replace(/(color)( )?/,''); objs[n].color = cName; // do something with it...
			jscolor.addEvent(objs[n], 'click', jscolor.togglePicker);
			objs[n].style.backgroundColor = objs[n].value != '' ? (objs[n].value.indexOf('#') != -1 ? '' : '#') + objs[n].value : '#FFFFFF';
			if (objs[n].value == '') objs[n].value = '#FFFFFF';
			objs[n].style.color = jscolor.getBrightness(jscolor.HEX2RGB(objs[n].value)) > 128 ? '#000' : '#FFF';
		}
		if (!objs[0]) return;
		objs[0].parentNode.appendChild(jscolor.build());
		jscolor.addEvents();
	},

	build : function() {
		var newCSS = document.createElement('style'), div = document.createElement('div'), divColl,
		ver = navigator.userAgent.toLowerCase(), IE = document.all,
		IE = IE ? ver.indexOf("msie 5") !=-1 || ver.indexOf("msie 6") !=-1 : false,
		cpMS = (jscolor.pickerMode == 'HVS'),
		// twf = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\'tw.png\', sizingMethod=\'scale\')',
		// tbf = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\'tb.png\', sizingMethod=\'scale\')',
		db1 = 'iVBORw0KGgoAAAANSUhEUgAAA',
		db2 = 'AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAA',
		db3 = db1+'AEAAABlCAYAAACMcInF'+db2+'N',
		db4 = 'R0lGODlhDwAPAPEAAAAAAP///',
		hsv = db1+'LUAAAABCAIAAAAXanid'+db2+'EtJREFUKFNj/M/AwMDDwMAGRhAGMomfi1UjTMtfToZfDCD0BYNEEyRDDQ5HU+BciLexOppy54KDgGLH4YwiZobvSGFMRnBCogiLPwFPaF0BRtROKwAAAABJRU5ErkJggg==',
		tb  = db3+'dJREFUKFMVxE1EA2AAANCvHyVJMpPJyEhEIpGImB0SHbJDOmSH2SEiOkyHDumQDukQERExosN0SIdEOiQmEpFIJBlFibKUUu/wXgghVP0L1apRrepUrwY1qknNalFEUbUqpjbF1a6EOtSpLnWrR73qU78GNKghJZXSsEY0qjGlNa4JTSqjrHKa0rRmNKu85jSvBS1qScta0arWtK4NbWpL2ypoR7sqak/7OtChjnSsE53qTCWd60KXutK1bnSrO93rQY8q60nPetGr3vSuD1X0qS9960e/f/WiMhwclNgJAAAAAElFTkSuQmCC',
		tw  = db3+'hJREFUKFMVxEFEQwEAANC10iRJMpnEjEQkEokRs8OMHabDdEiH6RARHdKhQzqkQzpERESM2CEd0iGRDolEIhKJJFGUKGVpv947vFAQBDWh/8KqVZ3qFVGDGtWkZrWoVVG1KaZ2dSiuhDrVpW71qFd96teABpXUkFJKK6OscsprWAWNaFRjKmpcE5rUlKY1o1nNaV4LWtSSlrWiVa1pXRva1JZK2lZZO9rVnvZ1oEMd6VgnOtWZznWhS13pWje61Z3u9aBHPelZL3rVm971oU996VsV/ehX1T9OtF/8xZgdKAAAAABJRU5ErkJggg==',
		cross = db4+'////////yH5BAEAAAIALAAAAAAPAA8AAAIklB8Qx53b4otSUWcvyiz4/4AeQJbmKY4p1HHapBlwPL/uVRsFADs=',
		arrow = db4+'6g8eKg8eCH5BAEAAAIALAAAAAAHAAsAAAITTIQYcLnsgGxvijrxqdQq6DRJAQA7',
		jsW = 211+jscolor.pickerInset*4+jscolor.pickerFace*2,
		jsH = 101+jscolor.pickerInset*2+jscolor.pickerFace*2,
		addQ = jscolor.pickerInset*2,
		jsF = jscolor.pickerFace, jsI = jscolor.pickerInset, jsB = jscolor.pickerBorder, jsIC = jscolor.pickerInsetColor,
		CSS =
		'.jscolor{position:relative;width:'+jsW+'px !important;width:'+(jsW+jsB*2)+'px;height:'+jsH+'px !important;height:'+(jsH+jsB*2)+'px;border:'+jsB+'px solid #fff;border-color:'+jscolor.pickerBorderColor+';background-color:'+jscolor.pickerFaceColor+'}'+
		'.jscolor .left{position:absolute;left:'+jsF+'px;top:'+jsF+'px;width:181px !important;width:'+(181+addQ)+'px;height:100px !important;height:'+(100+addQ)+'px;border:'+jsI+'px solid #fff;border-color:'+jsIC+';background-image:url('+(IE?'hsv.png':'data:image/png;base64,'+hsv+'')+')}'+
		'.jscolor .left .layer, .jscolor .left .mousepad{position:absolute;width:181px;height:100px}'+
		'.jscolor .left .mousepad{cursor:crosshair}'+
		'.jscolor .left .cursor{position:absolute;top:-7px;left:-7px;width:15px;height:15px}'+
		'.jscolor .right{position:absolute;right:'+jsF+'px;top:'+jsF+'px;width:16px !important;width:'+(16+addQ)+'px;height:100px !important;height:'+(100+addQ)+'px;border:'+jsI+'px solid #fff;border-color:'+jsIC+';background-color:#f00}'+
		'.jscolor .right .mousepad{position:absolute;right:0px;width:26px;height:100px;cursor:hand;cursor:pointer}'+
		'.jscolor .right .cursor{position:absolute;right:'+(jsI+17)+'px;top:-5px;width:7px;height:11px}'+
		'.cross{background-image:url('+(IE?'cross.gif':'data:image/gif;base64,'+cross+'')+')}'+
		'.arrow{background-image:url('+(IE?'arrow.gif':'data:image/gif;base64,'+arrow+'')+')}'+
		'.tw{background-image:url('+(IE?'tw.png':'data:image/png;base64,'+tw+'')+')}'+
		'.tb{background-image:url('+(IE?'tb.png':'data:image/png;base64,'+tb+'')+')}';
		
		newCSS.setAttribute('type','text/css');
		if (newCSS.styleSheet) newCSS.styleSheet.cssText = '<!--\n'+CSS+'\n-->';
		else newCSS.appendChild(document.createTextNode('<!--\n'+CSS+'\n-->'));
		document.getElementsByTagName('head')[0].appendChild(newCSS);
		
		div.className = 'jscolor';
		div.innerHTML = '<div class="left"><div class="layer t'+(cpMS?'b':'w')+'"></div><div class="cursor cross"></div><div class="mousepad"></div></div>'+
		'<div class="right t'+(cpMS?'w':'b')+'"><div class="cursor arrow"></div><div class="mousepad"></div></div>';
		divColl = div.getElementsByTagName('div');
		for (var n=0; n<divColl.length; n++) jscolor[['jcL','layL','curL','padL','jcR','curR','padR'][n]]=divColl[n];
		div.style.position = 'absolute'; div.style.display = 'none';
		jscolor.jscolor = div;
		
		return div;
	},
		
	addEvents : function() {
		jscolor.padL.onmousedown = jscolor.padR.onmousedown = function(e){
			var  e = e ? e : window.event, obj = e.target || e.srcElement;
			obj.xyNow = jscolor.getOrigin(obj);
			jscolor.doDrag(e);
			jscolor.addEvent(document.body, 'mousemove', jscolor.doDrag);
			return false;
		}
		jscolor.addEvent(document.body, 'mouseup', function(){
			jscolor.removeEvent(document.body, 'mousemove');
			jscolor.padL.xyNow = jscolor.padR.xyNow = false;
			return false;
		});
	},
	
	doDrag : function(e,mouseNow,init) {
		if (jscolor.curObj) jscolor.obj = jscolor.curObj;
		var  e = e ? e : window.event,
		mouseNow = mouseNow ? mouseNow : jscolor.getMousePos(e,jscolor.padL.xyNow || jscolor.padR.xyNow),
		curL = jscolor.curL.style, curR = jscolor.curR.style,
		cpMS = (jscolor.pickerMode == 'HVS'),
		val = '';
		mouseNow[1] = mouseNow[1] < 0 ? 0 : mouseNow[1] > 100 ? 100 : mouseNow[1];
		mouseNow[0] = mouseNow[0] < 0 ? 0 : mouseNow[0] > 180 ? 180 : mouseNow[0];
		var Hc = mouseNow[0]/180*255, Sc = Vc = 255-(mouseNow[1]/100*255), // c = coordinate whise
				Sr = jscolor.color.S/100*255, Vr = jscolor.color.V/100*255;    // r = real
		
		if (jscolor.padL.xyNow || init == jscolor.padL) { // left picker
			curL.left = mouseNow[0]-7+'px';
			curL.top = mouseNow[1]-7+'px';
			jscolor.color.putHSV([mouseNow[0]*2, cpMS?100-mouseNow[1]:jscolor.color.S, cpMS?jscolor.color.V:100-mouseNow[1]]);
			jscolor.jcR.style.backgroundColor = 'rgb('+jscolor.HSV2RGB(Hc, cpMS?Sc:255, cpMS?255:Vc)+')';
		} else { // right picker
			curR.top = mouseNow[1]-5+'px';
			jscolor.color.putHSV([jscolor.color.H, cpMS?jscolor.color.S:100-mouseNow[1], cpMS?100-mouseNow[1]:jscolor.color.V]);
		}
		
		if (init) return false;
		jscolor.obj.style.backgroundColor = 'rgb('+[jscolor.color.R,jscolor.color.G,jscolor.color.B]+')';
		jscolor.obj.style.color = jscolor.getBrightness([jscolor.color.R,jscolor.color.G,jscolor.color.B]) > 128 ? '#000' : '#FFF';
		val = jscolor.RGB2HEX([jscolor.color.R,jscolor.color.G,jscolor.color.B]);
		jscolor.obj.value = (jscolor.hash ? '#':'') + (jscolor.caps ? val : val.toLowerCase());
		return false;
	},
	
	color : {
		H:0,S:100,V:100,R:0,G:0,B:0,
		putRGB : function (rgb) {this.R=rgb[0]; this.G=rgb[1]; this.B=rgb[2]},
		putHSV : function (hsv) {
			this.H=hsv[0]; this.S=hsv[1]; this.V=hsv[2];
			var rgb = jscolor.HSV2RGB(this.H/360*255,this.S/100*255,this.V/100*255);
			this.R=rgb[0]; this.G=rgb[1]; this.B=rgb[2]
		}
	},
	
	togglePicker : function(e) {
		var  e = e ? e : window.event, obj = e.target || e.srcElement,
		jcs = jscolor.jscolor.style,
		HSVxy = jscolor.RGB2HSV(jscolor.HEX2RGB(obj.value)),
		cpMS = (jscolor.pickerMode == 'HVS');
		
		if (jcs.display != 'none' && jscolor.curObj == obj) jcs.display = 'none';
		else {
			jcs.display = 'block';
			jcs.left = obj.offsetLeft+obj.scrollLeft+'px';
			jcs.top =  obj.offsetTop+obj.offsetHeight+obj.scrollTop+'px';
			jscolor.doDrag(null,[null,100-HSVxy[(cpMS?1:2)]],jscolor.padR);
			jscolor.doDrag(null,[HSVxy[0]/2,100-HSVxy[(cpMS?2:1)]],jscolor.padL);
		}
		jscolor.curObj = obj;
	},
	
	getBrightness : function(rgb) {return Math.sqrt(rgb[0]*rgb[0]*.241+rgb[1]*rgb[1]*.691+rgb[2]*rgb[2]*.068)},

	RGB2HEX : function (rgb) {
		return((rgb[0]<16?'0':'')+rgb[0].toString(16)+
					 (rgb[1]<16?'0':'')+rgb[1].toString(16)+
					 (rgb[2]<16?'0':'')+rgb[2].toString(16)).toUpperCase();
	},
	
	HEX2RGB : function (hex) {
		hex = hex.replace('#','');
		return [parseInt(hex.substr(0,2),16), parseInt(hex.substr(2,2),16), parseInt(hex.substr(4,2),16)];
	},
	
	HSV2RGB : function(x,y,z) {
		var r=g=b=c=0,d=(100-z/255*100)/100,i=y/255,j=y*(255-z)/255;cPHue=z;
		
		if (x<42.5){r=y;g=x*6*i;g+=(y-g)*d;b=j;}
		else if (x>=42.5&&x< 85){c=42.5;r=(255-(x-c)*6)*i;r+=(y-r)*d;g=y;b=j;}
		else if (x>=85&&x<127.5){c=85;r=j;g=y;b=(x-c)*6*i;b+=(y-b)*d;}
		else if (x>=127.5&&x<170){c=127.5;r=j;g=(255-(x-c)*6)*i;g+=(y-g)*d;b=y;}
		else if (x>=170&&x<212.5){c=170;r=(x-c)*6*i;r+=(y-r)*d;g=j;b=y;}
		else if (x>=212.5){c=212.5;r=y;g=j;b=(255-(x-c)*6)*i;b+=(y-b)*d;}
		return [Math.round(r),Math.round(g),Math.round(b)];
	},
	
	RGB2HSV : function(r, g, b) {
		if (typeof r == 'object') {var b=r[2],g=r[1];r=r[0]}
		var n = Math.min(Math.min(r,g),b), v = Math.max(Math.max(r,g),b), m = v - n;
		if(m === 0) return [0, 0, v/255*100];
		var h = r===n ? 3+(b-g)/m : (g===n ? 5+(r-b)/m : 1+(g-r)/m);
		return [h===6?0:h*60, m/v*100, v/255*100];
	},

	getStyle : function (prop,obj) {
		if (obj.currentStyle)	return obj.currentStyle[prop];
		else if (window.getComputedStyle) return document.defaultView.getComputedStyle(obj,null).getPropertyValue(prop);
	},

	getOrigin : function(obj) {
		var parent=box=null, pos=[];
		

		if (obj.parentNode === null || jscolor.getStyle('display', obj) == 'none') return false;
		
		if (obj.getBoundingClientRect) { // IE
			 box = obj.getBoundingClientRect();
			 var scrollTop = document.documentElement.scrollTop || document.body.scrollTop;
			 var scrollLeft = document.documentElement.scrollLeft || document.body.scrollLeft;
			 return [Math.round(box.left) + scrollLeft, Math.round(box.top) + scrollTop];
		}	else if (document.getBoxObjectFor) { // gecko
			 box = document.getBoxObjectFor(obj);
			 pos = [box.x, box.y];
		}	else { // safari/opera
			 pos = [obj.offsetLeft, obj.offsetTop];
			 parent = obj.offsetParent;
			 if (parent != obj) {
					while (parent) {
						 pos[0] += parent.offsetLeft;
						 pos[1] += parent.offsetTop;
						 parent = parent.offsetParent;
					}
			 }
			 var ua = navigator.userAgent.toLowerCase();
			 if (ua.indexOf('opera') != -1  || (ua.indexOf('safari') != -1 && jscolor.getStyle('position', obj) == 'absolute')) {
					pos[1] -= document.body.offsetTop;
			 }
		}
		if (obj.parentNode) parent = obj.parentNode;
		else parent = null;
		while (parent && parent.tagName != 'BODY' && parent.tagName != 'HTML') {
			 pos[0] -= parent.scrollLeft;
			 pos[1] -= parent.scrollTop;
			 if (parent.parentNode) parent = parent.parentNode;
			 else parent = null;
		}
		return pos;
	},

	getMousePos : function(e,relC) {
		var  e = e ? e : window.event;
		if(typeof e.pageX === 'number') return [e.pageX - relC[0], e.pageY - relC[1]];
		else return [e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft - relC[0],
								 e.clientY + document.body.scrollTop  + document.documentElement.scrollTop - relC[1]];
	},
	
	addEvent : function(obj, type, func) {
		if (!obj || !type || !func) return false;
		if (obj == window && type == 'load') {jscolor.addWinEvent(obj, type, func); return false;}
		if (!obj.funcCache) obj.funcCache = [];
		obj.funcCache[type] = func;
		if (obj.addEventListener) obj.addEventListener(type, func, false);
		else obj.attachEvent("on" + type, func);
	},
	
	addWinEvent : function(obj, type, func) {
		if(typeof window.addEventListener != 'undefined') window.addEventListener(type, func, false);
		else if(typeof document.addEventListener != 'undefined') document.addEventListener(type, func, false); //.. opera 
		else if(typeof window.attachEvent != 'undefined') window.attachEvent('on' + type, func);
		else {
			if(typeof window.onload == 'function') {
					var existing = onload;
					window.onload = function() {
							existing();
							func();
					};
			} else window.onload = func;
		}
	},
	
	removeEvent : function(obj, type, func) {
		if (!obj || !type) return false;
		if (!func && !obj.funcCache[type]) return false;
		if (obj.removeEventListener) obj.removeEventListener(type, func||obj.funcCache[type], false);
		else obj.detachEvent("on" + type, func||obj.funcCache[type]);
	}
}

jscolor.addEvent(window, 'load', jscolor.init);