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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
// Mapping from common CSS color names (lowercase) to hex codes (lowercase)
// Excludes names directly supported by Ink
export const CSS_NAME_TO_HEX_MAP: Readonly<Record<string, string>> = {
aliceblue: '#f0f8ff',
antiquewhite: '#faebd7',
aqua: '#00ffff',
aquamarine: '#7fffd4',
azure: '#f0ffff',
beige: '#f5f5dc',
bisque: '#ffe4c4',
blanchedalmond: '#ffebcd',
blueviolet: '#8a2be2',
brown: '#a52a2a',
burlywood: '#deb887',
cadetblue: '#5f9ea0',
chartreuse: '#7fff00',
chocolate: '#d2691e',
coral: '#ff7f50',
cornflowerblue: '#6495ed',
cornsilk: '#fff8dc',
crimson: '#dc143c',
darkblue: '#00008b',
darkcyan: '#008b8b',
darkgoldenrod: '#b8860b',
darkgray: '#a9a9a9',
darkgrey: '#a9a9a9',
darkgreen: '#006400',
darkkhaki: '#bdb76b',
darkmagenta: '#8b008b',
darkolivegreen: '#556b2f',
darkorange: '#ff8c00',
darkorchid: '#9932cc',
darkred: '#8b0000',
darksalmon: '#e9967a',
darkseagreen: '#8fbc8f',
darkslateblue: '#483d8b',
darkslategray: '#2f4f4f',
darkslategrey: '#2f4f4f',
darkturquoise: '#00ced1',
darkviolet: '#9400d3',
deeppink: '#ff1493',
deepskyblue: '#00bfff',
dimgray: '#696969',
dimgrey: '#696969',
dodgerblue: '#1e90ff',
firebrick: '#b22222',
floralwhite: '#fffaf0',
forestgreen: '#228b22',
fuchsia: '#ff00ff',
gainsboro: '#dcdcdc',
ghostwhite: '#f8f8ff',
gold: '#ffd700',
goldenrod: '#daa520',
greenyellow: '#adff2f',
honeydew: '#f0fff0',
hotpink: '#ff69b4',
indianred: '#cd5c5c',
indigo: '#4b0082',
ivory: '#fffff0',
khaki: '#f0e68c',
lavender: '#e6e6fa',
lavenderblush: '#fff0f5',
lawngreen: '#7cfc00',
lemonchiffon: '#fffacd',
lightblue: '#add8e6',
lightcoral: '#f08080',
lightcyan: '#e0ffff',
lightgoldenrodyellow: '#fafad2',
lightgray: '#d3d3d3',
lightgrey: '#d3d3d3',
lightgreen: '#90ee90',
lightpink: '#ffb6c1',
lightsalmon: '#ffa07a',
lightseagreen: '#20b2aa',
lightskyblue: '#87cefa',
lightslategray: '#778899',
lightslategrey: '#778899',
lightsteelblue: '#b0c4de',
lightyellow: '#ffffe0',
lime: '#00ff00',
limegreen: '#32cd32',
linen: '#faf0e6',
maroon: '#800000',
mediumaquamarine: '#66cdaa',
mediumblue: '#0000cd',
mediumorchid: '#ba55d3',
mediumpurple: '#9370db',
mediumseagreen: '#3cb371',
mediumslateblue: '#7b68ee',
mediumspringgreen: '#00fa9a',
mediumturquoise: '#48d1cc',
mediumvioletred: '#c71585',
midnightblue: '#191970',
mintcream: '#f5fffa',
mistyrose: '#ffe4e1',
moccasin: '#ffe4b5',
navajowhite: '#ffdead',
navy: '#000080',
oldlace: '#fdf5e6',
olive: '#808000',
olivedrab: '#6b8e23',
orange: '#ffa500',
orangered: '#ff4500',
orchid: '#da70d6',
palegoldenrod: '#eee8aa',
palegreen: '#98fb98',
paleturquoise: '#afeeee',
palevioletred: '#db7093',
papayawhip: '#ffefd5',
peachpuff: '#ffdab9',
peru: '#cd853f',
pink: '#ffc0cb',
plum: '#dda0dd',
powderblue: '#b0e0e6',
purple: '#800080',
rebeccapurple: '#663399',
rosybrown: '#bc8f8f',
royalblue: '#4169e1',
saddlebrown: '#8b4513',
salmon: '#fa8072',
sandybrown: '#f4a460',
seagreen: '#2e8b57',
seashell: '#fff5ee',
sienna: '#a0522d',
silver: '#c0c0c0',
skyblue: '#87ceeb',
slateblue: '#6a5acd',
slategray: '#708090',
slategrey: '#708090',
snow: '#fffafa',
springgreen: '#00ff7f',
steelblue: '#4682b4',
tan: '#d2b48c',
teal: '#008080',
thistle: '#d8bfd8',
tomato: '#ff6347',
turquoise: '#40e0d0',
violet: '#ee82ee',
wheat: '#f5deb3',
whitesmoke: '#f5f5f5',
yellowgreen: '#9acd32',
};
// Define the set of Ink's named colors for quick lookup
export const INK_SUPPORTED_NAMES = new Set([
'black',
'red',
'green',
'yellow',
'blue',
'cyan',
'magenta',
'white',
'gray',
'grey',
'blackbright',
'redbright',
'greenbright',
'yellowbright',
'bluebright',
'cyanbright',
'magentabright',
'whitebright',
]);
/**
* Checks if a color string is valid (hex, Ink-supported color name, or CSS color name).
* This function uses the same validation logic as the Theme class's _resolveColor method
* to ensure consistency between validation and resolution.
* @param color The color string to validate.
* @returns True if the color is valid.
*/
export function isValidColor(color: string): boolean {
const lowerColor = color.toLowerCase();
// 1. Check if it's a hex code
if (lowerColor.startsWith('#')) {
return /^#[0-9A-Fa-f]{3}([0-9A-Fa-f]{3})?$/.test(color);
}
// 2. Check if it's an Ink supported name
if (INK_SUPPORTED_NAMES.has(lowerColor)) {
return true;
}
// 3. Check if it's a known CSS name we can map to hex
if (CSS_NAME_TO_HEX_MAP[lowerColor]) {
return true;
}
// 4. Not a valid color
return false;
}
/**
* Resolves a CSS color value (name or hex) into an Ink-compatible color string.
* @param colorValue The raw color string (e.g., 'blue', '#ff0000', 'darkkhaki').
* @returns An Ink-compatible color string (hex or name), or undefined if not resolvable.
*/
export function resolveColor(colorValue: string): string | undefined {
const lowerColor = colorValue.toLowerCase();
// 1. Check if it's already a hex code and valid
if (lowerColor.startsWith('#')) {
if (/^#[0-9A-Fa-f]{3}([0-9A-Fa-f]{3})?$/.test(colorValue)) {
return lowerColor;
} else {
return undefined;
}
}
// 2. Check if it's an Ink supported name (lowercase)
else if (INK_SUPPORTED_NAMES.has(lowerColor)) {
return lowerColor; // Use Ink name directly
}
// 3. Check if it's a known CSS name we can map to hex
else if (CSS_NAME_TO_HEX_MAP[lowerColor]) {
return CSS_NAME_TO_HEX_MAP[lowerColor]; // Use mapped hex
}
// 4. Could not resolve
console.warn(
`[ColorUtils] Could not resolve color "${colorValue}" to an Ink-compatible format.`,
);
return undefined;
}
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