@haiku/player/lib/vendor/color-string/index.js

Haiku Player is a JavaScript library for building user interfaces

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var color_names_1 = require("./../color-names");
var reverseNames = {};
for (var name_1 in color_names_1.default) {
    if (color_names_1.default.hasOwnProperty(name_1)) {
        reverseNames[color_names_1.default[name_1]] = name_1;
    }
}
var cs = {};
cs['get'] = function (string) {
    var prefix = string.substring(0, 3).toLowerCase();
    var val;
    var model;
    switch (prefix) {
        case 'hsl':
            val = cs['get']['hsl'](string);
            model = 'hsl';
            break;
        case 'hwb':
            val = cs['get']['hwb'](string);
            model = 'hwb';
            break;
        default:
            val = cs['get']['rgb'](string);
            model = 'rgb';
            break;
    }
    if (!val) {
        return null;
    }
    return {
        model: model,
        value: val,
    };
};
cs['get']['rgb'] = function (string) {
    if (!string) {
        return null;
    }
    var abbr = /^#([a-f0-9]{3,4})$/i;
    var hex = /^#([a-f0-9]{6})([a-f0-9]{2})?$/i;
    var rgba = /^rgba?\(\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*(?:,\s*([+-]?[\d.]+)\s*)?\)$/;
    var per = /^rgba?\(\s*([+-]?[\d.]+)%\s*,\s*([+-]?[\d.]+)%\s*,\s*([+-]?[\d.]+)%\s*(?:,\s*([+-]?[\d.]+)\s*)?\)$/;
    var keyword = /(\D+)/;
    var rgb = [0, 0, 0, 1];
    var match;
    var i;
    var hexAlpha;
    var hexMatch = string.match(hex);
    var abbrMatch = string.match(abbr);
    var rgbaMatch = string.match(rgba);
    var perMatch = string.match(per);
    var keywordMatch = string.match(keyword);
    if (hexMatch) {
        match = hexMatch;
        hexAlpha = match[2];
        match = match[1];
        for (i = 0; i < 3; i++) {
            var i2 = i * 2;
            rgb[i] = parseInt(match.slice(i2, i2 + 2), 16);
        }
        if (hexAlpha) {
            rgb[3] = Math.round(parseInt(hexAlpha, 16) / 255 * 100) / 100;
        }
    }
    else if (abbrMatch) {
        match = abbrMatch;
        match = match[1];
        hexAlpha = match[3];
        for (i = 0; i < 3; i++) {
            rgb[i] = parseInt(match[i] + match[i], 16);
        }
        if (hexAlpha) {
            rgb[3] = Math.round(parseInt(hexAlpha + hexAlpha, 16) / 255 * 100) / 100;
        }
    }
    else if (rgbaMatch) {
        match = rgbaMatch;
        for (i = 0; i < 3; i++) {
            rgb[i] = parseInt(match[i + 1], 0);
        }
        if (match[4]) {
            rgb[3] = parseFloat(match[4]);
        }
    }
    else if (perMatch) {
        match = perMatch;
        for (i = 0; i < 3; i++) {
            rgb[i] = Math.round(parseFloat(match[i + 1]) * 2.55);
        }
        if (match[4]) {
            rgb[3] = parseFloat(match[4]);
        }
    }
    else if (keywordMatch) {
        match = keywordMatch;
        if (match[1] === 'transparent') {
            return [0, 0, 0, 0];
        }
        rgb = color_names_1.default[match[1]];
        if (!rgb) {
            return null;
        }
        rgb[3] = 1;
        return rgb;
    }
    else {
        return null;
    }
    for (i = 0; i < 3; i++) {
        rgb[i] = clamp(rgb[i], 0, 255);
    }
    rgb[3] = clamp(rgb[3], 0, 1);
    return rgb;
};
cs['get']['hsl'] = function (string) {
    if (!string) {
        return null;
    }
    var hsl = /^hsla?\(\s*([+-]?\d*[.]?\d+)(?:deg)?\s*,\s*([+-]?[\d.]+)%\s*,\s*([+-]?[\d.]+)%\s*(?:,\s*([+-]?[\d.]+)\s*)?\)$/;
    var match = string.match(hsl);
    if (match) {
        var alpha = parseFloat(match[4]);
        var h = (parseFloat(match[1]) % 360 + 360) % 360;
        var s = clamp(parseFloat(match[2]), 0, 100);
        var l = clamp(parseFloat(match[3]), 0, 100);
        var a = clamp(isNaN(alpha) ? 1 : alpha, 0, 1);
        return [h, s, l, a];
    }
    return null;
};
cs['get']['hwb'] = function (string) {
    if (!string) {
        return null;
    }
    var hwb = /^hwb\(\s*([+-]?\d*[.]?\d+)(?:deg)?\s*,\s*([+-]?[\d.]+)%\s*,\s*([+-]?[\d.]+)%\s*(?:,\s*([+-]?[\d.]+)\s*)?\)$/;
    var match = string.match(hwb);
    if (match) {
        var alpha = parseFloat(match[4]);
        var h = (parseFloat(match[1]) % 360 + 360) % 360;
        var w = clamp(parseFloat(match[2]), 0, 100);
        var b = clamp(parseFloat(match[3]), 0, 100);
        var a = clamp(isNaN(alpha) ? 1 : alpha, 0, 1);
        return [h, w, b, a];
    }
    return null;
};
cs['to'] = {};
cs['to']['hex'] = function (rgba) {
    return ('#' +
        hexDouble(rgba[0]) +
        hexDouble(rgba[1]) +
        hexDouble(rgba[2]) +
        (rgba[3] < 1 ? hexDouble(Math.round(rgba[3] * 255)) : ''));
};
cs['to']['rgb'] = function (rgba) {
    return rgba.length < 4 || rgba[3] === 1
        ? 'rgb(' +
            Math.round(rgba[0]) +
            ', ' +
            Math.round(rgba[1]) +
            ', ' +
            Math.round(rgba[2]) +
            ')'
        : 'rgba(' +
            Math.round(rgba[0]) +
            ', ' +
            Math.round(rgba[1]) +
            ', ' +
            Math.round(rgba[2]) +
            ', ' +
            rgba[3] +
            ')';
};
cs['to']['rgb']['percent'] = function (rgba) {
    var r = Math.round(rgba[0] / 255 * 100);
    var g = Math.round(rgba[1] / 255 * 100);
    var b = Math.round(rgba[2] / 255 * 100);
    return rgba.length < 4 || rgba[3] === 1
        ? 'rgb(' + r + '%, ' + g + '%, ' + b + '%)'
        : 'rgba(' + r + '%, ' + g + '%, ' + b + '%, ' + rgba[3] + ')';
};
cs['to']['hsl'] = function (hsla) {
    return hsla.length < 4 || hsla[3] === 1
        ? 'hsl(' + hsla[0] + ', ' + hsla[1] + '%, ' + hsla[2] + '%)'
        : 'hsla(' +
            hsla[0] +
            ', ' +
            hsla[1] +
            '%, ' +
            hsla[2] +
            '%, ' +
            hsla[3] +
            ')';
};
cs['to']['hwb'] = function (hwba) {
    var a = '';
    if (hwba.length >= 4 && hwba[3] !== 1) {
        a = ', ' + hwba[3];
    }
    return 'hwb(' + hwba[0] + ', ' + hwba[1] + '%, ' + hwba[2] + '%' + a + ')';
};
cs['to']['keyword'] = function (rgb) {
    return reverseNames[rgb.slice(0, 3)];
};
function clamp(num, min, max) {
    return Math.min(Math.max(min, num), max);
}
function hexDouble(num) {
    var str = num.toString(16).toUpperCase();
    return str.length < 2 ? '0' + str : str;
}
exports.default = cs;
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