{"ast":null,"code":"import { TinyColor } from './index'; // Readability Functions\n// ---------------------\n// <http://www.w3.org/TR/2008/REC-WCAG20-20081211/#contrast-ratiodef (WCAG Version 2)\n\n/**\n * AKA `contrast`\n *\n * Analyze the 2 colors and returns the color contrast defined by (WCAG Version 2)\n */\n\nexport function readability(color1, color2) {\n  var c1 = new TinyColor(color1);\n  var c2 = new TinyColor(color2);\n  return (Math.max(c1.getLuminance(), c2.getLuminance()) + 0.05) / (Math.min(c1.getLuminance(), c2.getLuminance()) + 0.05);\n}\n/**\n * Ensure that foreground and background color combinations meet WCAG2 guidelines.\n * The third argument is an object.\n *      the 'level' property states 'AA' or 'AAA' - if missing or invalid, it defaults to 'AA';\n *      the 'size' property states 'large' or 'small' - if missing or invalid, it defaults to 'small'.\n * If the entire object is absent, isReadable defaults to {level:\"AA\",size:\"small\"}.\n *\n * Example\n * ```ts\n * new TinyColor().isReadable('#000', '#111') => false\n * new TinyColor().isReadable('#000', '#111', { level: 'AA', size: 'large' }) => false\n * ```\n */\n\nexport function isReadable(color1, color2, wcag2) {\n  var _a, _b;\n\n  if (wcag2 === void 0) {\n    wcag2 = {\n      level: 'AA',\n      size: 'small'\n    };\n  }\n\n  var readabilityLevel = readability(color1, color2);\n\n  switch (((_a = wcag2.level) !== null && _a !== void 0 ? _a : 'AA') + ((_b = wcag2.size) !== null && _b !== void 0 ? _b : 'small')) {\n    case 'AAsmall':\n    case 'AAAlarge':\n      return readabilityLevel >= 4.5;\n\n    case 'AAlarge':\n      return readabilityLevel >= 3;\n\n    case 'AAAsmall':\n      return readabilityLevel >= 7;\n\n    default:\n      return false;\n  }\n}\n/**\n * Given a base color and a list of possible foreground or background\n * colors for that base, returns the most readable color.\n * Optionally returns Black or White if the most readable color is unreadable.\n *\n * @param baseColor - the base color.\n * @param colorList - array of colors to pick the most readable one from.\n * @param args - and object with extra arguments\n *\n * Example\n * ```ts\n * new TinyColor().mostReadable('#123', ['#124\", \"#125'], { includeFallbackColors: false }).toHexString(); // \"#112255\"\n * new TinyColor().mostReadable('#123', ['#124\", \"#125'],{ includeFallbackColors: true }).toHexString();  // \"#ffffff\"\n * new TinyColor().mostReadable('#a8015a', [\"#faf3f3\"], { includeFallbackColors:true, level: 'AAA', size: 'large' }).toHexString(); // \"#faf3f3\"\n * new TinyColor().mostReadable('#a8015a', [\"#faf3f3\"], { includeFallbackColors:true, level: 'AAA', size: 'small' }).toHexString(); // \"#ffffff\"\n * ```\n */\n\nexport function mostReadable(baseColor, colorList, args) {\n  if (args === void 0) {\n    args = {\n      includeFallbackColors: false,\n      level: 'AA',\n      size: 'small'\n    };\n  }\n\n  var bestColor = null;\n  var bestScore = 0;\n  var includeFallbackColors = args.includeFallbackColors,\n      level = args.level,\n      size = args.size;\n\n  for (var _i = 0, colorList_1 = colorList; _i < colorList_1.length; _i++) {\n    var color = colorList_1[_i];\n    var score = readability(baseColor, color);\n\n    if (score > bestScore) {\n      bestScore = score;\n      bestColor = new TinyColor(color);\n    }\n  }\n\n  if (isReadable(baseColor, bestColor, {\n    level: level,\n    size: size\n  }) || !includeFallbackColors) {\n    return bestColor;\n  }\n\n  args.includeFallbackColors = false;\n  return mostReadable(baseColor, ['#fff', '#000'], 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{ TinyColor } from './index';\n// Readability Functions\n// ---------------------\n// <http://www.w3.org/TR/2008/REC-WCAG20-20081211/#contrast-ratiodef (WCAG Version 2)\n/**\n * AKA `contrast`\n *\n * Analyze the 2 colors and returns the color contrast defined by (WCAG Version 2)\n */\nexport function readability(color1, color2) {\n    var c1 = new TinyColor(color1);\n    var c2 = new TinyColor(color2);\n    return ((Math.max(c1.getLuminance(), c2.getLuminance()) + 0.05) /\n        (Math.min(c1.getLuminance(), c2.getLuminance()) + 0.05));\n}\n/**\n * Ensure that foreground and background color combinations meet WCAG2 guidelines.\n * The third argument is an object.\n *      the 'level' property states 'AA' or 'AAA' - if missing or invalid, it defaults to 'AA';\n *      the 'size' property states 'large' or 'small' - if missing or invalid, it defaults to 'small'.\n * If the entire object is absent, isReadable defaults to {level:\"AA\",size:\"small\"}.\n *\n * Example\n * ```ts\n * new TinyColor().isReadable('#000', '#111') => false\n * new TinyColor().isReadable('#000', '#111', { level: 'AA', size: 'large' }) => false\n * ```\n */\nexport function isReadable(color1, color2, wcag2) {\n    var _a, _b;\n    if (wcag2 === void 0) { wcag2 = { level: 'AA', size: 'small' }; }\n    var readabilityLevel = readability(color1, color2);\n    switch (((_a = wcag2.level) !== null && _a !== void 0 ? _a : 'AA') + ((_b = wcag2.size) !== null && _b !== void 0 ? _b : 'small')) {\n        case 'AAsmall':\n        case 'AAAlarge':\n            return readabilityLevel >= 4.5;\n        case 'AAlarge':\n            return readabilityLevel >= 3;\n        case 'AAAsmall':\n            return readabilityLevel >= 7;\n        default:\n            return false;\n    }\n}\n/**\n * Given a base color and a list of possible foreground or background\n * colors for that base, returns the most readable color.\n * Optionally returns Black or White if the most readable color is unreadable.\n *\n * @param baseColor - the base color.\n * @param colorList - array of colors to pick the most readable one from.\n * @param args - and object with extra arguments\n *\n * Example\n * ```ts\n * new TinyColor().mostReadable('#123', ['#124\", \"#125'], { includeFallbackColors: false }).toHexString(); // \"#112255\"\n * new TinyColor().mostReadable('#123', ['#124\", \"#125'],{ includeFallbackColors: true }).toHexString();  // \"#ffffff\"\n * new TinyColor().mostReadable('#a8015a', [\"#faf3f3\"], { includeFallbackColors:true, level: 'AAA', size: 'large' }).toHexString(); // \"#faf3f3\"\n * new TinyColor().mostReadable('#a8015a', [\"#faf3f3\"], { includeFallbackColors:true, level: 'AAA', size: 'small' }).toHexString(); // \"#ffffff\"\n * ```\n */\nexport function mostReadable(baseColor, colorList, args) {\n    if (args === void 0) { args = { includeFallbackColors: false, level: 'AA', size: 'small' }; }\n    var bestColor = null;\n    var bestScore = 0;\n    var includeFallbackColors = args.includeFallbackColors, level = args.level, size = args.size;\n    for (var _i = 0, colorList_1 = colorList; _i < colorList_1.length; _i++) {\n        var color = colorList_1[_i];\n        var score = readability(baseColor, color);\n        if (score > bestScore) {\n            bestScore = score;\n            bestColor = new TinyColor(color);\n        }\n    }\n    if (isReadable(baseColor, bestColor, { level: level, size: size }) || !includeFallbackColors) {\n        return bestColor;\n    }\n    args.includeFallbackColors = false;\n    return mostReadable(baseColor, ['#fff', '#000'], args);\n}\n"]},"metadata":{},"sourceType":"module"}