discourse/public/javascripts/spectrum.js

(function(factory){"use strict";if(typeof define==="function"&&define.amd){define(["jquery"],factory)}else if(typeof exports=="object"&&typeof module=="object"){module.exports=factory(require("jquery"))}else{factory(jQuery)}})(function($,undefined){"use strict";var defaultOpts={beforeShow:noop,move:noop,change:noop,show:noop,hide:noop,color:false,flat:false,showInput:false,allowEmpty:false,showButtons:true,clickoutFiresChange:true,showInitial:false,showPalette:false,showPaletteOnly:false,hideAfterPaletteSelect:false,togglePaletteOnly:false,showSelectionPalette:true,localStorageKey:false,appendTo:"body",maxSelectionSize:7,cancelText:"cancel",chooseText:"choose",togglePaletteMoreText:"more",togglePaletteLessText:"less",clearText:"Clear Color Selection",noColorSelectedText:"No Color Selected",preferredFormat:false,className:"",containerClassName:"",replacerClassName:"",showAlpha:false,theme:"sp-light",palette:[["#ffffff","#000000","#ff0000","#ff8000","#ffff00","#008000","#0000ff","#4b0082","#9400d3"]],selectionPalette:[],disabled:false,offset:null},spectrums=[],IE=!!/msie/i.exec(window.navigator.userAgent),rgbaSupport=function(){function contains(str,substr){return!!~(""+str).indexOf(substr)}var elem=document.createElement("div");var style=elem.style;style.cssText="background-color:rgba(0,0,0,.5)";return contains(style.backgroundColor,"rgba")||contains(style.backgroundColor,"hsla")}(),replaceInput=["<div class='sp-replacer'>","<div class='sp-preview'><div class='sp-preview-inner'></div></div>","<div class='sp-dd'>&#9660;</div>","</div>"].join(""),markup=function(){var gradientFix="";if(IE){for(var i=1;i<=6;i++){gradientFix+="<div class='sp-"+i+"'></div>"}}return["<div class='sp-container sp-hidden'>","<div class='sp-palette-container'>","<div class='sp-palette sp-thumb sp-cf'></div>","<div class='sp-palette-button-container sp-cf'>","<button type='button' class='sp-palette-toggle'></button>","</div>","</div>","<div class='sp-picker-container'>","<div class='sp-top sp-cf'>","<div class='sp-fill'></div>","<div class='sp-top-inner'>","<div class='sp-color'>","<div class='sp-sat'>","<div class='sp-val'>","<div class='sp-dragger'></div>","</div>","</div>","</div>","<div class='sp-clear sp-clear-display'>","</div>","<div class='sp-hue'>","<div class='sp-slider'></div>",gradientFix,"</div>","</div>","<div class='sp-alpha'><div class='sp-alpha-inner'><div class='sp-alpha-handle'></div></div></div>","</div>","<div class='sp-input-container sp-cf'>","<input class='sp-input' type='text' spellcheck='false'  />","</div>","<div class='sp-initial sp-thumb sp-cf'></div>","<div class='sp-button-container sp-cf'>","<a class='sp-cancel' href='#'></a>","<button type='button' class='sp-choose'></button>","</div>","</div>","</div>"].join("")}();function paletteTemplate(p,color,className,opts){var html=[];for(var i=0;i<p.length;i++){var current=p[i];if(current){var tiny=tinycolor(current);var c=tiny.toHsl().l<.5?"sp-thumb-el sp-thumb-dark":"sp-thumb-el sp-thumb-light";c+=tinycolor.equals(color,current)?" sp-thumb-active":"";var formattedString=tiny.toString(opts.preferredFormat||"rgb");var swatchStyle=rgbaSupport?"background-color:"+tiny.toRgbString():"filter:"+tiny.toFilter();html.push('<span title="'+formattedString+'" data-color="'+tiny.toRgbString()+'" class="'+c+'"><span class="sp-thumb-inner" style="'+swatchStyle+';" /></span>')}else{var cls="sp-clear-display";html.push($("<div />").append($('<span data-color="" style="background-color:transparent;" class="'+cls+'"></span>').attr("title",opts.noColorSelectedText)).html())}}return"<div class='sp-cf "+className+"'>"+html.join("")+"</div>"}function hideAll(){for(var i=0;i<spectrums.length;i++){if(spectrums[i]){spectrums[i].hide()}}}function instanceOptions(o,callbackContext){var opts=$.extend({},defaultOpts,o);opts.callbacks={move:bind(opts.move,callbackContext),change:bind(opts.change,callbackContext),show:bind(opts.show,callbackContext),hide:bind(opts.hide,callbackContext),beforeShow:bind(opts.beforeShow,callbackContext)};return opts}function spectrum(element,o){var opts=instanceOptions(o,e
};function desaturate(color,amount){amount=amount===0?0:amount||10;var hsl=tinycolor(color).toHsl();hsl.s-=amount/100;hsl.s=clamp01(hsl.s);return tinycolor(hsl)}function saturate(color,amount){amount=amount===0?0:amount||10;var hsl=tinycolor(color).toHsl();hsl.s+=amount/100;hsl.s=clamp01(hsl.s);return tinycolor(hsl)}function greyscale(color){return tinycolor(color).desaturate(100)}function lighten(color,amount){amount=amount===0?0:amount||10;var hsl=tinycolor(color).toHsl();hsl.l+=amount/100;hsl.l=clamp01(hsl.l);return tinycolor(hsl)}function brighten(color,amount){amount=amount===0?0:amount||10;var rgb=tinycolor(color).toRgb();rgb.r=mathMax(0,mathMin(255,rgb.r-mathRound(255*-(amount/100))));rgb.g=mathMax(0,mathMin(255,rgb.g-mathRound(255*-(amount/100))));rgb.b=mathMax(0,mathMin(255,rgb.b-mathRound(255*-(amount/100))));return tinycolor(rgb)}function darken(color,amount){amount=amount===0?0:amount||10;var hsl=tinycolor(color).toHsl();hsl.l-=amount/100;hsl.l=clamp01(hsl.l);return tinycolor(hsl)}function spin(color,amount){var hsl=tinycolor(color).toHsl();var hue=(mathRound(hsl.h)+amount)%360;hsl.h=hue<0?360+hue:hue;return tinycolor(hsl)}function complement(color){var hsl=tinycolor(color).toHsl();hsl.h=(hsl.h+180)%360;return tinycolor(hsl)}function triad(color){var hsl=tinycolor(color).toHsl();var h=hsl.h;return[tinycolor(color),tinycolor({h:(h+120)%360,s:hsl.s,l:hsl.l}),tinycolor({h:(h+240)%360,s:hsl.s,l:hsl.l})]}function tetrad(color){var hsl=tinycolor(color).toHsl();var h=hsl.h;return[tinycolor(color),tinycolor({h:(h+90)%360,s:hsl.s,l:hsl.l}),tinycolor({h:(h+180)%360,s:hsl.s,l:hsl.l}),tinycolor({h:(h+270)%360,s:hsl.s,l:hsl.l})]}function splitcomplement(color){var hsl=tinycolor(color).toHsl();var h=hsl.h;return[tinycolor(color),tinycolor({h:(h+72)%360,s:hsl.s,l:hsl.l}),tinycolor({h:(h+216)%360,s:hsl.s,l:hsl.l})]}function analogous(color,results,slices){results=results||6;slices=slices||30;var hsl=tinycolor(color).toHsl();var part=360/slices;var ret=[tinycolor(color)];for(hsl.h=(hsl.h-(part*results>>1)+720)%360;--results;){hsl.h=(hsl.h+part)%360;ret.push(tinycolor(hsl))}return ret}function monochromatic(color,results){results=results||6;var hsv=tinycolor(color).toHsv();var h=hsv.h,s=hsv.s,v=hsv.v;var ret=[];var modification=1/results;while(results--){ret.push(tinycolor({h:h,s:s,v:v}));v=(v+modification)%1}return ret}tinycolor.mix=function(color1,color2,amount){amount=amount===0?0:amount||50;var rgb1=tinycolor(color1).toRgb();var rgb2=tinycolor(color2).toRgb();var p=amount/100;var w=p*2-1;var a=rgb2.a-rgb1.a;var w1;if(w*a==-1){w1=w}else{w1=(w+a)/(1+w*a)}w1=(w1+1)/2;var w2=1-w1;var rgba={r:rgb2.r*w1+rgb1.r*w2,g:rgb2.g*w1+rgb1.g*w2,b:rgb2.b*w1+rgb1.b*w2,a:rgb2.a*p+rgb1.a*(1-p)};return tinycolor(rgba)};tinycolor.readability=function(color1,color2){var c1=tinycolor(color1);var c2=tinycolor(color2);var rgb1=c1.toRgb();var rgb2=c2.toRgb();var brightnessA=c1.getBrightness();var brightnessB=c2.getBrightness();var colorDiff=Math.max(rgb1.r,rgb2.r)-Math.min(rgb1.r,rgb2.r)+Math.max(rgb1.g,rgb2.g)-Math.min(rgb1.g,rgb2.g)+Math.max(rgb1.b,rgb2.b)-Math.min(rgb1.b,rgb2.b);return{brightness:Math.abs(brightnessA-brightnessB),color:colorDiff}};tinycolor.isReadable=function(color1,color2){var readability=tinycolor.readability(color1,color2);return readability.brightness>125&&readability.color>500};tinycolor.mostReadable=function(baseColor,colorList){var bestColor=null;var bestScore=0;var bestIsReadable=false;for(var i=0;i<colorList.length;i++){var readability=tinycolor.readability(baseColor,colorList[i]);var readable=readability.brightness>125&&readability.color>500;var score=3*(readability.brightness/125)+readability.color/500;if(readable&&!bestIsReadable||readable&&bestIsReadable&&score>bestScore||!readable&&!bestIsReadable&&score>bestScore){bestIsReadable=readable;bestScore=score;bestColor=tinycolor(colorList[i])}}return bestColor};var names=tinycolor.names={aliceblue:"f0f8ff",antiquewhite:"faebd7",aqua:"0ff",aquamarine:"7fffd4",azure:"f0ffff",beige:"f5f5dc",bisque:"ffe4c4",black:"000",blanchedalmond:"ffebcd",blue:"00f",blueviolet:"8a2be2"