Function modifyColorWithCache

src/inject/dynamic-theme/modify-colors.ts:59–86

(rgb: RGBA, theme: Theme, modifyHSL: HSLModifyFunction, poleColor?: string, anotherPoleColor?: string)

}

function modifyColorWithCache(rgb: RGBA, theme: Theme, modifyHSL: HSLModifyFunction, poleColor?: string, anotherPoleColor?: string): string {
    let fnCache: Map<string, string>;
    if (colorModificationCache.has(modifyHSL)) {
        fnCache = colorModificationCache.get(modifyHSL)!;
    } else {
        fnCache = new Map();
        colorModificationCache.set(modifyHSL, fnCache);
    }
    const id = getCacheId(rgb, theme, poleColor, anotherPoleColor);
    if (fnCache.has(id)) {
        return fnCache.get(id)!;
    }

    const hsl = rgbToHSL(rgb);
    const pole = poleColor == null ? null : parseToHSLWithCache(poleColor);
    const anotherPole = anotherPoleColor == null ? null : parseToHSLWithCache(anotherPoleColor);
    const modified = modifyHSL(hsl, pole!, anotherPole!);
    const {r, g, b, a} = hslToRGB(modified);
    const matrix = createFilterMatrix({...theme, mode: 0});
    const [rf, gf, bf] = applyColorMatrix([r, g, b], matrix);

    const color = (a === 1 ?
        rgbToHexString({r: rf, g: gf, b: bf}) :
        rgbToString({r: rf, g: gf, b: bf, a}));

    fnCache.set(id, color);
    return color;
}

function noopHSL(hsl: HSLA): HSLA {
    return hsl;