319 lines
8.2 KiB
TypeScript
319 lines
8.2 KiB
TypeScript
import Head from "next/head";
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import { useBrandColors } from "@calcom/embed-core/embed-iframe";
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const BRAND_COLOR = "#292929";
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const BRAND_TEXT_COLOR = "#ffffff";
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const DARK_BRAND_COLOR = "#fafafa";
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const HTML_COLORS = {
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aliceblue: "#f0f8ff",
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antiquewhite: "#faebd7",
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aqua: "#00ffff",
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aquamarine: "#7fffd4",
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azure: "#f0ffff",
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beige: "#f5f5dc",
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bisque: "#ffe4c4",
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black: "#000000",
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blanchedalmond: "#ffebcd",
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blue: "#0000ff",
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blueviolet: "#8a2be2",
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brown: "#a52a2a",
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burlywood: "#deb887",
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cadetblue: "#5f9ea0",
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chartreuse: "#7fff00",
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chocolate: "#d2691e",
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coral: "#ff7f50",
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cornflowerblue: "#6495ed",
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cornsilk: "#fff8dc",
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crimson: "#dc143c",
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cyan: "#00ffff",
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darkblue: "#00008b",
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darkcyan: "#008b8b",
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darkgoldenrod: "#b8860b",
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darkgray: "#a9a9a9",
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darkgreen: "#006400",
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darkkhaki: "#bdb76b",
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darkmagenta: "#8b008b",
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darkolivegreen: "#556b2f",
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darkorange: "#ff8c00",
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darkorchid: "#9932cc",
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darkred: "#8b0000",
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darksalmon: "#e9967a",
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darkseagreen: "#8fbc8f",
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darkslateblue: "#483d8b",
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darkslategray: "#2f4f4f",
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darkturquoise: "#00ced1",
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darkviolet: "#9400d3",
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deeppink: "#ff1493",
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deepskyblue: "#00bfff",
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dimgray: "#696969",
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dodgerblue: "#1e90ff",
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firebrick: "#b22222",
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floralwhite: "#fffaf0",
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forestgreen: "#228b22",
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fuchsia: "#ff00ff",
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gainsboro: "#dcdcdc",
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ghostwhite: "#f8f8ff",
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gold: "#ffd700",
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goldenrod: "#daa520",
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gray: "#808080",
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green: "#008000",
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greenyellow: "#adff2f",
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honeydew: "#f0fff0",
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hotpink: "#ff69b4",
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"indianred ": "#cd5c5c",
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indigo: "#4b0082",
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ivory: "#fffff0",
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khaki: "#f0e68c",
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lavender: "#e6e6fa",
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lavenderblush: "#fff0f5",
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lawngreen: "#7cfc00",
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lemonchiffon: "#fffacd",
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lightblue: "#add8e6",
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lightcoral: "#f08080",
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lightcyan: "#e0ffff",
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lightgoldenrodyellow: "#fafad2",
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lightgrey: "#d3d3d3",
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lightgreen: "#90ee90",
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lightpink: "#ffb6c1",
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lightsalmon: "#ffa07a",
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lightseagreen: "#20b2aa",
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lightskyblue: "#87cefa",
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lightslategray: "#778899",
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lightsteelblue: "#b0c4de",
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lightyellow: "#ffffe0",
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lime: "#00ff00",
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limegreen: "#32cd32",
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linen: "#faf0e6",
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magenta: "#ff00ff",
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maroon: "#800000",
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mediumaquamarine: "#66cdaa",
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mediumblue: "#0000cd",
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mediumorchid: "#ba55d3",
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mediumpurple: "#9370d8",
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mediumseagreen: "#3cb371",
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mediumslateblue: "#7b68ee",
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mediumspringgreen: "#00fa9a",
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mediumturquoise: "#48d1cc",
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mediumvioletred: "#c71585",
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midnightblue: "#191970",
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mintcream: "#f5fffa",
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mistyrose: "#ffe4e1",
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moccasin: "#ffe4b5",
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navajowhite: "#ffdead",
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navy: "#000080",
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oldlace: "#fdf5e6",
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olive: "#808000",
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olivedrab: "#6b8e23",
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orange: "#ffa500",
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orangered: "#ff4500",
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orchid: "#da70d6",
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palegoldenrod: "#eee8aa",
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palegreen: "#98fb98",
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paleturquoise: "#afeeee",
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palevioletred: "#d87093",
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papayawhip: "#ffefd5",
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peachpuff: "#ffdab9",
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peru: "#cd853f",
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pink: "#ffc0cb",
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plum: "#dda0dd",
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powderblue: "#b0e0e6",
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purple: "#800080",
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rebeccapurple: "#663399",
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red: "#ff0000",
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rosybrown: "#bc8f8f",
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royalblue: "#4169e1",
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saddlebrown: "#8b4513",
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salmon: "#fa8072",
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sandybrown: "#f4a460",
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seagreen: "#2e8b57",
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seashell: "#fff5ee",
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sienna: "#a0522d",
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silver: "#c0c0c0",
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skyblue: "#87ceeb",
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slateblue: "#6a5acd",
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slategray: "#708090",
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snow: "#fffafa",
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springgreen: "#00ff7f",
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steelblue: "#4682b4",
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tan: "#d2b48c",
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teal: "#008080",
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thistle: "#d8bfd8",
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tomato: "#ff6347",
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turquoise: "#40e0d0",
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violet: "#ee82ee",
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wheat: "#f5deb3",
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white: "#ffffff",
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whitesmoke: "#f5f5f5",
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yellow: "#ffff00",
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yellowgreen: "#9acd32",
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};
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// Shadow the HTML_COLORS constant so we can create a type guard for it.
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type HTML_COLORS = typeof HTML_COLORS;
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function isHtmlColor(color: string): color is keyof HTML_COLORS {
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return color in HTML_COLORS;
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}
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export function colorNameToHex(color: string) {
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const normalizedColor = color.toLowerCase();
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if (isHtmlColor(normalizedColor)) {
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return HTML_COLORS[normalizedColor];
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}
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return false;
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}
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function computeContrastRatio(a: number[], b: number[]) {
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const lum1 = computeLuminance(a[0], a[1], a[2]);
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const lum2 = computeLuminance(b[0], b[1], b[2]);
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const brightest = Math.max(lum1, lum2);
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const darkest = Math.min(lum1, lum2);
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return (brightest + 0.05) / (darkest + 0.05);
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}
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function computeLuminance(r: number, g: number, b: number) {
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const a = [r, g, b].map((v) => {
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v /= 255;
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return v <= 0.03928 ? v / 12.92 : Math.pow((v + 0.055) / 1.055, 2.4);
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});
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return a[0] * 0.2126 + a[1] * 0.7152 + a[2] * 0.0722;
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}
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function hexToRGB(hex: string) {
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const color = hex.replace("#", "");
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return [parseInt(color.slice(0, 2), 16), parseInt(color.slice(2, 4), 16), parseInt(color.slice(4, 6), 16)];
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}
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function normalizeHexCode(hex: string | null, dark: boolean) {
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if (!hex) {
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return !dark ? BRAND_COLOR : DARK_BRAND_COLOR;
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}
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hex = hex.replace("#", "");
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// If the length of the hex code is 3, double up each character
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// e.g. fff => ffffff or a0e => aa00ee
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if (hex.length === 3) {
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hex = hex
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.split("")
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.map(function (hex) {
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return hex + hex;
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})
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.join("");
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}
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return hex;
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}
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function getContrastingTextColor(bgColor: string | null, dark: boolean): string {
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bgColor = bgColor == "" || bgColor == null ? (dark ? DARK_BRAND_COLOR : BRAND_COLOR) : bgColor;
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const rgb = hexToRGB(bgColor);
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const whiteContrastRatio = computeContrastRatio(rgb, [255, 255, 255]);
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const blackContrastRatio = computeContrastRatio(rgb, [41, 41, 41]); //#292929
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return whiteContrastRatio > blackContrastRatio ? BRAND_TEXT_COLOR : BRAND_COLOR;
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}
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/**
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* Given a string, determine if it's a valid 6 character hex code.
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*/
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export function isValidHexCode(val: string | null) {
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if (val) {
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// Normalize the value into include a leading "#" if it's missing
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val = val.indexOf("#") === 0 ? val : "#" + val;
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const regex = /^#([A-F0-9]{6}|[A-F0-9]{3})$/i;
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return regex.test(val);
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}
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return false;
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}
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/**
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* Given a html color name, check if it exists in our color palette
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* and if it does, return the hex code for that color. Otherwise,
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* return the default brand color.
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*/
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export function fallBackHex(val: string | null, dark: boolean): string {
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if (val && colorNameToHex(val)) {
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return colorNameToHex(val) as string;
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}
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// Otherwise, return the default color
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return dark ? DARK_BRAND_COLOR : BRAND_COLOR;
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}
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/**
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* Given a light and dark brand color value, update the css variables
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* within the document to reflect the new brand colors.
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*/
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const BrandColor = ({
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lightVal = BRAND_COLOR,
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darkVal = DARK_BRAND_COLOR,
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}: {
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lightVal: string | undefined | null;
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darkVal: string | undefined | null;
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}) => {
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const embedBrandingColors = useBrandColors();
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lightVal = embedBrandingColors.brandColor || lightVal;
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// convert to 6 digit equivalent if 3 digit code is entered
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lightVal = normalizeHexCode(lightVal, false);
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darkVal = normalizeHexCode(darkVal, true);
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// ensure acceptable hex-code
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lightVal = isValidHexCode(lightVal)
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? lightVal?.indexOf("#") === 0
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? lightVal
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: "#" + lightVal
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: fallBackHex(lightVal, false);
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darkVal = isValidHexCode(darkVal)
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? darkVal?.indexOf("#") === 0
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? darkVal
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: "#" + darkVal
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: fallBackHex(darkVal, true);
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return (
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<Head>
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<style>
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{`body {
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/* green--500*/
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--booking-highlight-color: ${embedBrandingColors.highlightColor || "#10B981"};
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/* gray--200 */
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--booking-lightest-color: ${embedBrandingColors.lightestColor || "#E1E1E1"};
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/* gray--400 */
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--booking-lighter-color: ${embedBrandingColors.lighterColor || "#ACACAC"};
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/* gray--500 */
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--booking-light-color: ${embedBrandingColors.lightColor || "#888888"};
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/* gray--600 */
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--booking-median-color: ${embedBrandingColors.medianColor || "#494949"};
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/* gray--800 */
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--booking-dark-color: ${embedBrandingColors.darkColor || "#313131"};
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/* gray--900 */
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--booking-darker-color: ${embedBrandingColors.darkerColor || "#292929"};
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--brand-color: ${lightVal};
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--brand-text-color: ${getContrastingTextColor(lightVal, true)};
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--brand-color-dark-mode: ${darkVal};
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--brand-text-color-dark-mode: ${getContrastingTextColor(darkVal, true)};
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`}
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</style>
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</Head>
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);
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};
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export default BrandColor;
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