adobe/spectrum-web-components | Build 13496326781 | tools/reactive-controllers/src/ColorController.ts | Coveralls

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/*

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Copyright 2022 Adobe. All rights reserved.

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This file is licensed to you under the Apache License, Version 2.0 (the "License");

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you may not use this file except in compliance with the License. You may obtain a copy

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of the License at http://www.apache.org/licenses/LICENSE-2.0

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Unless required by applicable law or agreed to in writing, software distributed under

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the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS

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OF ANY KIND, either express or implied. See the License for the specific language

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governing permissions and limitations under the License.

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*/

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import type { ReactiveElement } from 'lit';

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import Color from 'colorjs.io';

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import type {

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    ColorObject,

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    ColorTypes as DefaultColorTypes,

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} from 'colorjs.io/types/src/color';

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import type ColorSpace from 'colorjs.io/types/src/space';

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/**

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 * Represents various color types that can be used in the application.

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 * This type can be one of the following:

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 * - `DefaultColorTypes`: A predefined set of color types.

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 * - An object representing an RGBA color with properties:

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 *   - `r`: Red component, can be a number or string.

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 *   - `g`: Green component, can be a number or string.

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 *   - `b`: Blue component, can be a number or string.

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 *   - `a` (optional): Alpha component, can be a number or string.

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 * - An object representing an HSLA color with properties:

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 *   - `h`: Hue component, can be a number or string.

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 *   - `s`: Saturation component, can be a number or string.

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 *   - `l`: Lightness component, can be a number or string.

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 *   - `a` (optional): Alpha component, can be a number or string.

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 * - An object representing an HSVA color with properties:

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 *   - `h`: Hue component, can be a number or string.

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 *   - `s`: Saturation component, can be a number or string.

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 *   - `v`: Value component, can be a number or string.

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 *   - `a` (optional): Alpha component, can be a number or string.

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*/

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type ColorTypes =

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    | DefaultColorTypes

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| {

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          r: number | string;

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          g: number | string;

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          b: number | string;

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          a?: number | string;

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| {

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          h: number | string;

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          s: number | string;

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          l: number | string;

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          a?: number | string;

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| {

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          h: number | string;

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          s: number | string;

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          v: number | string;

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          a?: number | string;

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};

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export type { Color, ColorTypes };

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type ColorValidationResult = {

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    spaceId: string | null;

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    coords: number[];

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    isValid: boolean;

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    alpha: number;

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};

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/**

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 * The `ColorController` class is responsible for managing and validating color values

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 * in various color spaces (RGB, HSL, HSV, Hex). It provides methods to set, get, and

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 * validate colors, as well as convert between different color formats.

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 * @class

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 * @property {Color} color - Gets or sets the current color value.

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 * @property {ColorTypes} colorValue - Gets the color value in various formats based on the original color input.

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 * @property {number} hue - Gets or sets the hue value of the current color.

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 * @method validateColorString(color: string): ColorValidationResult - Validates a color string and returns the validation result.

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 * @method getColor(format: string | ColorSpace): ColorObject - Converts the current color to the specified format.

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 * @method getHslString(): string - Returns the current color in HSL string format.

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 * @method savePreviousColor(): void - Saves the current color as the previous color.

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 * @method restorePreviousColor(): void - Restores the previous color.

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 * @constructor

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 * @param {ReactiveElement} host - The host element that uses this controller.

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 * @param {Object} [options] - Optional configuration options.

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 * @param {string} [options.manageAs] - Specifies the color space to manage the color as.

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*/

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export class ColorController {

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    get color(): Color {

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        return this._color;

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/**

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     * Validates a color string and returns a result indicating the color space,

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     * coordinates, alpha value, and whether the color is valid.

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     * @param color - The color string to validate. Supported formats include:

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     *  - RGB: `rgb(r, g, b)`, `rgba(r, g, b, a)`, `rgb r g b`, `rgba r g b a`

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     *  - HSL: `hsl(h, s, l)`, `hsla(h, s, l, a)`, `hsl h s l`, `hsla h s l a`

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     *  - HSV: `hsv(h, s, v)`, `hsva(h, s, v, a)`, `hsv h s v`, `hsva h s v a`

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     *  - HEX: `#rgb`, `#rgba`, `#rrggbb`, `#rrggbbaa`

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     * @returns An object containing the following properties:

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     *  - `spaceId`: The color space identifier (`'srgb'`, `'hsl'`, or `'hsv'`).

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     *  - `coords`: An array of numeric values representing the color coordinates.

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     *  - `alpha`: The alpha value of the color (0 to 1).

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     *  - `isValid`: A boolean indicating whether the color string is valid.

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*/

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    public validateColorString(color: string): ColorValidationResult {

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        const result: ColorValidationResult = {

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            spaceId: null,

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            coords: [0, 0, 0],

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            isValid: false,

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            alpha: 1,

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};

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        const rgbRegExpArray = [

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            /rgba\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d*\.?\d+)\s*\)/i,

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            /rgb\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*\)/i,

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            /^rgba\s+(\d{1,3})\s+(\d{1,3})\s+(\d{1,3})\s+(0|0?\.\d+|1)\s*$/i,

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            /^rgb\s+(\d{1,3})\s+(\d{1,3})\s+(\d{1,3})\s*$/i,

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            /^rgba\(\s*(\d{1,3})\s+(\d{1,3})\s+(\d{1,3})\s+(\d*\.?\d+)\s*\)$/i,

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            /^rgb\(\s*(\d{1,3})\s+(\d{1,3})\s+(\d{1,3})\s*\)$/i,

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            /rgb\(\s*(100|[0-9]{1,2}%)\s*,\s*(100|[0-9]{1,2}%)\s*,\s*(100|[0-9]{1,2}%)\s*\)/i,

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            /rgba\(\s*(100|[0-9]{1,2})%\s*,\s*(100|[0-9]{1,2})%\s*,\s*(100|[0-9]{1,2})%\s*,\s*(\d*\.?\d+)\s*\)/i,

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];

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        const hslRegExpArray = [

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            /hsla\(\s*(\d{1,3})\s*,\s*(\d{1,3}%?)\s*,\s*(\d{1,3}%?)\s*,\s*(\d*\.?\d+)\s*\)/i,

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            /hsl\(\s*(\d{1,3})\s*,\s*(\d{1,3}%?)\s*,\s*(\d{1,3}%?)\s*\)/i,

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            /^hsla\s+(\d{1,3})\s+(\d{1,3}%?)\s+(\d{1,3}%?)\s+(\d*\.?\d+)\s*$/i,

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            /^hsl\s+(\d{1,3})\s+(\d{1,3}%?)\s+(\d{1,3}%?)\s*$/i,

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            /^hsla\(\s*(\d{1,3})\s+(\d{1,3}%?)\s+(\d{1,3}%?)\s+(\d*\.?\d+)\s*\)$/i,

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            /^hsl\(\s*(\d{1,3})\s+(\d{1,3}%?)\s+(\d{1,3}%?)\s*\)$/i,

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];

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        const hsvRegExpArray = [

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            /hsva\(\s*(\d{1,3})\s*,\s*(\d{1,3}%?)\s*,\s*(\d{1,3}%?)\s*,\s*(\d*\.?\d+)\s*\)/i,

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            /hsv\(\s*(\d{1,3})\s*,\s*(\d{1,3}%?)\s*,\s*(\d{1,3}%?)\s*\)/i,

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            /^hsva\s+(\d{1,3})\s+(\d{1,3}%?)\s+(\d{1,3}%?)\s+(\d*\.?\d+)\s*$/i,

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            /^hsv\s+(\d{1,3})\s+(\d{1,3}%?)\s+(\d{1,3}%?)\s*$/i,

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            /^hsva\(\s*(\d{1,3})\s+(\d{1,3}%?)\s+(\d{1,3}%?)\s+(\d*\.?\d+)\s*\)$/i,

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            /^hsv\(\s*(\d{1,3})\s+(\d{1,3}%?)\s+(\d{1,3}%?)\s*\)$/i,

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];

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        const hexRegExpArray = [

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            /^#([A-Fa-f0-9]{6})(?:\s*([01](?:\.\d+)?))?$/,

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            /^#([A-Fa-f0-9]{3})(?:\s*([01](?:\.\d+)?))?$/,

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];

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        const rgbaMatch = rgbRegExpArray

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            .find((regex) => regex.test(color))

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            ?.exec(color);

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        const hslaMatch = hslRegExpArray

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            .find((regex) => regex.test(color))

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            ?.exec(color);

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        const hsvaMatch = hsvRegExpArray

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            .find((regex) => regex.test(color))

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            ?.exec(color);

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        const hexMatch = hexRegExpArray

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            .find((regex) => regex.test(color))

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            ?.exec(color);

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        if (rgbaMatch) {

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            const [, r, g, b, a] = rgbaMatch.filter(

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                (element) => typeof element === 'string'

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);

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            const alpha = a === undefined ? 1 : Number(a);

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            const processValue = (value: string): number => {

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                if (value.includes('%')) {

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                    return Number(value.replace('%', '')) / 100;

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                } else {

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                    return Number(value) / 255;

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};

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            const numericR = processValue(r);

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            const numericG = processValue(g);

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            const numericB = processValue(b);

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            result.spaceId = 'srgb';

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            result.coords = [numericR, numericG, numericB];

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            result.alpha = alpha;

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            result.isValid =

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                numericR >= 0 &&

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                numericR <= 1 &&

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                numericG >= 0 &&

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                numericG <= 1 &&

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                numericB >= 0 &&

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                numericB <= 1 &&

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                alpha >= 0 &&

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                alpha <= 1;

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        } else if (hslaMatch) {

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            const [, h, s, l, a] = hslaMatch;

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            const values = [h, s, l, a === undefined ? '1' : a].map((value) =>

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                Number(value.replace(/[^\d.]/g, ''))

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);

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            const [numericH, numericS, numericL, numericA] = values;

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            result.spaceId = 'hsl';

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            result.coords = [numericH, numericS, numericL];

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            result.alpha = numericA;

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            result.isValid =

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                numericH >= 0 &&

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                numericH <= 360 &&

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                numericS >= 0 &&

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                numericS <= 100 &&

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                numericL >= 0 &&

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                numericL <= 100 &&

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                numericA >= 0 &&

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                numericA <= 1;

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        } else if (hsvaMatch) {

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            const [, h, s, v, a] = hsvaMatch;

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            const values = [h, s, v, a === undefined ? '1' : a].map((value) =>

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                Number(value.replace(/[^\d.]/g, ''))

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);

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            const [numericH, numericS, numericV, numericA] = values;

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            result.spaceId = 'hsv';

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            result.coords = [numericH, numericS, numericV];

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            result.alpha = numericA;

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            result.isValid =

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                numericH >= 0 &&

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                numericH <= 360 &&

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                numericS >= 0 &&

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                numericS <= 100 &&

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                numericV >= 0 &&

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                numericV <= 100 &&

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                numericA >= 0 &&

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                numericA <= 1;

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        } else if (hexMatch) {

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            const [, hex, alpha] = hexMatch;

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            // Function to process 2-digit or repeated 1-digit hex

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            const processHex = (hex: string): number => {

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                // For 3-digit hex values, repeat each digit

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                if (hex.length === 1) {

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                    hex = hex + hex;

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                return parseInt(hex, 16) / 255;

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};

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            // Handle both 3-digit and 6-digit hex

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            let numericR, numericG, numericB;

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            if (hex.length === 3) {

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                // 3-digit hex (e.g., #3a7 -> #33aa77)

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                numericR = processHex(hex.substring(0, 1));

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                numericG = processHex(hex.substring(1, 2));

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                numericB = processHex(hex.substring(2, 3));

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            } else {

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                // 6-digit hex (e.g., #33aa77)

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                numericR = processHex(hex.substring(0, 2));

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                numericG = processHex(hex.substring(2, 4));

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                numericB = processHex(hex.substring(4, 6));

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            // Numeric alpha: if not provided, default to 1

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            // Validate the color values

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            result.spaceId = 'srgb';

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            result.coords = [numericR, numericG, numericB];

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            result.alpha = numericA;

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            result.isValid =

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                numericR >= 0 &&

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                numericR <= 1 &&

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                numericG >= 0 &&

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                numericG <= 1 &&

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                numericB >= 0 &&

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                numericB <= 1 &&

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                numericA >= 0 &&

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                numericA <= 1;

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        return result;

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/**

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     * Represents the color state of the component.

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     * Initialized with an HSV color model with hue 0, saturation 100, and value 100, and an alpha value of 1.

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     * @private

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     * @type {Color}

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*/

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    private _color: Color = new Color('hsv', [0, 100, 100], 1);

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/**

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     * Represents the original color value provided by the user.

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     * @private

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     * @type {ColorTypes}

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*/

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    private _colorOrigin!: ColorTypes;

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/**

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     * Gets the original color value provided by the user.

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     * @returns {ColorTypes} The original color value.

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*/

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    get colorOrigin(): ColorTypes {

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/**

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     * Sets the original color value provided by the user.

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     * @param {ColorTypes} colorOrigin - The original color value to set.

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*/

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    set colorOrigin(colorOrigin: ColorTypes) {

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        this._colorOrigin = colorOrigin;

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/**

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     * An optional string property that specifies how the color should be managed(its value is the name of color space in which color object will be managed).

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     * This property can be used to define a specific management strategy or identifier.

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*/

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    private manageAs?: string;

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/**

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     * Stores the previous color value.

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     * This is used to keep track of the color before any changes are made.

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     * @private

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*/

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    private _previousColor!: Color;

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/**

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     * Sets the color value for the controller. The color can be provided in various formats:

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     * - A string representing a color name, hex code, or other color format.

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     * - An instance of the `Color` class.

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     * - An object containing color properties such as `h`, `s`, `l`, `v`, `r`, `g`, `b`, and optionally `a`.

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     * The method validates and parses the input color, converting it to a `Color` instance.

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     * If the color is invalid, it attempts to parse it as a hex code or returns without setting a new color.

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     * @param {ColorTypes} color - The color value to set. It can be a string, an instance of `Color`, or an object with color properties.

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*/

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    set color(color: ColorTypes) {

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        this._colorOrigin = color;

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        let newColor!: Color;

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        if (typeof color === 'string') {

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            const colorValidationResult = this.validateColorString(

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                color as string

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);

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            if (colorValidationResult.isValid) {

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                const [coord1, coord2, coord3] = colorValidationResult.coords;

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                newColor = new Color(

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                    `${colorValidationResult.spaceId}`,

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                    [coord1, coord2, coord3],

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                    colorValidationResult.alpha

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);

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            } else {

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                try {

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                    Color.parse(color);

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                } catch (error) {

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                    try {

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                        newColor = new Color(`#${color}`);

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                    } catch (error) {

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                        return;

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        } else if (color instanceof Color) {

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            newColor = color;

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        } else if (!Array.isArray(color)) {

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            const { h, s, l, v, r, g, b, a } = color as {

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                h: string;

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                s: string;

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                l: string;

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                v: string;

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                r: string;

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                g: string;

21✔

375

                b: string;

21✔

376

                a?: string;

21✔

377

};

21✔

378

            if (typeof h !== 'undefined' && typeof s !== 'undefined') {

21✔

379

                const lv = l ?? v;

14✔

380

                newColor = new Color(

14✔

381

                    typeof l !== 'undefined' ? 'hsl' : 'hsv',

14✔

382

14✔

383

                        parseFloat(h),

14✔

384

                        typeof s !== 'string' ? s * 100 : parseFloat(s),

14✔

385

                        typeof lv !== 'string' ? lv * 100 : parseFloat(lv),

14✔

386

],

14✔

387

                    parseFloat(a || '1')

14✔

388

);

14✔

389

            } else if (

14✔

390

                typeof r !== 'undefined' &&

7✔

391

                typeof g !== 'undefined' &&

7✔

392

                typeof b !== 'undefined'

7✔

393

) {

7✔

394

                newColor = new Color(

7✔

395

                    'srgb',

7✔

396

7✔

397

                        parseFloat(r) / 255,

7✔

398

                        parseFloat(g) / 255,

7✔

399

                        parseFloat(b) / 255,

7✔

400

],

7✔

402

);

7✔

403

7✔

404

21✔

405

116✔

406

        if (!newColor) {

117✔

407

            newColor = new Color(color as DefaultColorTypes);

14✔

408

14✔

409

116✔

410

        if (this.manageAs) {

117✔

411

            this._color = newColor.to(this.manageAs) as Color;

79✔

412

        } else {

117✔

413

            this._color = newColor;

37✔

414

37✔

415

        this.host.requestUpdate();

116✔

416

117✔

417

6✔

418

/**

6✔

419

     * Gets the color value in various formats based on the original color input.

6✔

420

6✔

421

     * The method determines the color space of the original color input and converts

6✔

422

     * the color to the appropriate format. The supported color spaces are:

6✔

423

     * - HSV (Hue, Saturation, Value)

6✔

424

     * - HSL (Hue, Saturation, Lightness)

6✔

425

     * - Hexadecimal (with or without alpha)

6✔

426

     * - RGB (Red, Green, Blue) with optional alpha

6✔

427

6✔

428

     * @returns {ColorTypes} The color value in the appropriate format.

6✔

429

6✔

430

     * The method handles the following cases:

6✔

431

     * - If the original color input is a string, it checks the prefix to determine the color space.

6✔

432

     * - If the original color input is an object, it checks the properties to determine the color space.

6✔

433

     * - If the original color input is not provided, it defaults to the current color space of the color object.

6✔

434

6✔

435

     * The returned color value can be in one of the following formats:

6✔

436

     * - `hsv(h, s%, v%)` or `hsva(h, s%, v%, a)`

6✔

437

     * - `hsl(h, s%, l%)` or `hsla(h, s%, l%, a)`

6✔

438

     * - `#rrggbb` or `#rrggbbaa`

6✔

439

     * - `rgb(r, g, b)` or `rgba(r, g, b, a)`

6✔

440

     * - `{ h, s, v, a }` for HSV object

6✔

441

     * - `{ h, s, l, a }` for HSL object

6✔

442

     * - `{ r, g, b, a }` for RGB object

6✔

443

*/

6✔

444

    get colorValue(): ColorTypes {

6✔

445

        if (typeof this._colorOrigin === 'string') {

511✔

446

            let spaceId = '';

174✔

447

            if (this._colorOrigin.startsWith('#')) {

174✔

448

                spaceId = 'hex string';

38✔

449

            } else if (this._colorOrigin.startsWith('rgb')) {

174✔

450

                spaceId = 'rgb';

20✔

451

            } else if (this._colorOrigin.startsWith('hsl')) {

136✔

452

                spaceId = 'hsl';

66✔

453

            } else if (this._colorOrigin.startsWith('hsv')) {

116✔

454

                spaceId = 'hsv';

26✔

455

            } else {

50✔

456

                spaceId = 'hex';

24✔

457

24✔

458

            switch (spaceId) {

174✔

459

                case 'hsv': {

174✔

460

                    const hadAlpha = this._colorOrigin[3] === 'a';

26✔

461

                    const { h, s, v } = (this._color.to('hsv') as Color).hsv;

26✔

462

                    const a = this._color.alpha;

26✔

463

                    return `hsv${hadAlpha ? `a` : ''}(${Math.round(

26✔

464

26✔

465

                    )}, ${Math.round(s)}%, ${Math.round(v)}%${

26✔

466

                        hadAlpha ? `, ${a}` : ''

26✔

467

                    })`;

26✔

468

26✔

469

                case 'hsl': {

174✔

470

                    const hadAlpha = this._colorOrigin[3] === 'a';

66✔

471

                    const { h, s, l } = (this._color.to('hsl') as Color).hsl;

66✔

472

                    const a = this._color.alpha;

66✔

473

                    return `hsl${hadAlpha ? `a` : ''}(${Math.round(

66✔

474

66✔

475

                    )}, ${Math.round(s)}%, ${Math.round(l)}%${

66✔

476

                        hadAlpha ? `, ${a}` : ''

66✔

477

                    })`;

66✔

478

66✔

479

                case 'hex string': {

174✔

480

                    const { r, g, b } = (this._color.to('srgb') as Color).srgb;

38✔

481

                    const hadAlpha =

38✔

482

                        this._colorOrigin.length === 5 ||

38✔

483

                        this._colorOrigin.length === 9;

31✔

484

                    const a = this._color.alpha;

38✔

485

                    const rHex = Math.round(r * 255).toString(16);

38✔

486

                    const gHex = Math.round(g * 255).toString(16);

38✔

487

                    const bHex = Math.round(b * 255).toString(16);

38✔

488

                    const aHex = Math.round(a * 255).toString(16);

38✔

489

                    return `#${rHex.padStart(2, '0')}${gHex.padStart(

38✔

490

2,

38✔

491

'0'

38✔

492

                    )}${bHex.padStart(2, '0')}${

38✔

493

                        hadAlpha ? aHex.padStart(2, '0') : ''

38✔

494

}`;

38✔

495

38✔

496

                case 'hex': {

174✔

497

                    const { r, g, b } = (this._color.to('srgb') as Color).srgb;

24✔

498

                    const hadAlpha =

24✔

499

                        this._colorOrigin.length === 4 ||

24✔

500

                        this._colorOrigin.length === 8;

21✔

501

                    const a = this._color.alpha;

24✔

502

                    const rHex = Math.round(r * 255).toString(16);

24✔

503

                    const gHex = Math.round(g * 255).toString(16);

24✔

504

                    const bHex = Math.round(b * 255).toString(16);

24✔

505

                    const aHex = Math.round(a * 255).toString(16);

24✔

506

                    return `${rHex.padStart(2, '0')}${gHex.padStart(

24✔

507

2,

24✔

508

'0'

24✔

509

                    )}${bHex.padStart(2, '0')}${

24✔

510

                        hadAlpha ? aHex.padStart(2, '0') : ''

24✔

511

}`;

24✔

512

24✔

513

                //rgb

174✔

514

                default: {

174✔

515

                    const { r, g, b } = (this._color.to('srgb') as Color).srgb;

20✔

516

                    const hadAlpha = this._colorOrigin[3] === 'a';

20✔

517

                    const a = this._color.alpha;

20✔

518

                    if (this._colorOrigin.search('%') > -1) {

20✔

519

                        return `rgb${hadAlpha ? `a` : ''}(${Math.round(r * 100)}%, ${Math.round(

8✔

520

                            g * 100

8✔

521

                        )}%, ${Math.round(b * 100)}%${hadAlpha ? `,${Math.round(a * 100)}%` : ''})`;

8✔

522

8✔

523

                    return `rgb${hadAlpha ? `a` : ''}(${Math.round(r * 255)}, ${Math.round(

20✔

524

                        g * 255

20✔

525

                    )}, ${Math.round(b * 255)}${hadAlpha ? `, ${a}` : ''})`;

20✔

526

20✔

527

174✔

528

174✔

529

        let spaceId;

337✔

530

        if (this._colorOrigin) {

499✔

531

            try {

70✔

532

                ({ spaceId } = new Color(

70✔

533

                    this._colorOrigin as DefaultColorTypes

70✔

534

));

70✔

535

            } catch (error) {

70✔

536

                const { h, s, l, v, r, g, b } = this._colorOrigin as {

67✔

537

                    h: string;

67✔

538

                    s: string;

67✔

539

                    l: string;

67✔

540

                    v: string;

67✔

541

                    r: string;

67✔

542

                    g: string;

67✔

543

                    b: string;

67✔

544

};

67✔

545

                if (

67✔

546

                    typeof h !== 'undefined' &&

67✔

547

                    typeof s !== 'undefined' &&

52✔

548

                    typeof l !== 'undefined'

52✔

549

) {

67✔

550

                    spaceId = 'hsl';

38✔

551

                } else if (

38✔

552

                    typeof h !== 'undefined' &&

29✔

553

                    typeof s !== 'undefined' &&

14✔

554

                    typeof v !== 'undefined'

14✔

555

) {

29✔

556

                    spaceId = 'hsv';

14✔

557

                } else if (

14✔

558

                    typeof r !== 'undefined' &&

15✔

559

                    typeof g !== 'undefined' &&

15✔

560

                    typeof b !== 'undefined'

15✔

561

) {

15✔

562

                    spaceId = 'srgb';

15✔

563

15✔

564

67✔

565

        } else {

511✔

566

            ({ spaceId } = this.color);

267✔

567

267✔

568

        switch (spaceId) {

337✔

569

            case 'hsv': {

511✔

570

                const { h, s, v } = (this._color.to('hsv') as Color).hsv;

282✔

571

                return {

282✔

572

h,

282✔

573

                    s: s / 100,

282✔

574

                    v: v / 100,

282✔

575

                    a: this._color.alpha,

282✔

576

};

282✔

577

282✔

578

            case 'hsl': {

511✔

579

                const { h, s, l } = (this._color.to('hsl') as Color).hsl;

39✔

580

                return {

39✔

581

h,

39✔

582

                    s: s / 100,

39✔

583

                    l: l / 100,

39✔

584

                    a: this._color.alpha,

39✔

585

};

39✔

586

39✔

587

            case 'srgb': {

511✔

588

                const { r, g, b } = (this._color.to('srgb') as Color).srgb;

16✔

589

                if (

16✔

590

                    this._colorOrigin &&

16✔

591

                    typeof (this._colorOrigin as { r: string }).r ===

16✔

592

                        'string' &&

16✔

593

                    (this._colorOrigin as { r: string }).r.search('%')

8✔

594

) {

16✔

595

                    return {

8✔

596

                        r: `${Math.round(r * 255)}%`,

8✔

597

                        g: `${Math.round(g * 255)}%`,

8✔

598

                        b: `${Math.round(b * 255)}%`,

8✔

599

                        a: this._color.alpha,

8✔

600

};

8✔

601

8✔

602

                return {

8✔

603

                    r: Math.round(r * 255),

8✔

604

                    g: Math.round(g * 255),

8✔

605

                    b: Math.round(b * 255),

8✔

606

                    a: this._color.alpha,

8✔

607

};

8✔

608

8✔

611

511✔

612

6✔

613

    protected host: ReactiveElement;

6✔

614

6✔

615

/**

6✔

616

     * Gets the hue value of the current color in HSL format.

6✔

617

6✔

618

     * @returns {number} The hue value as a number.

6✔

619

*/

6✔

620

    get hue(): number {

6✔

621

        return Number((this._color.to('hsl') as Color).hsl.h);

2,099✔

622

2,099✔

623

6✔

624

/**

6✔

625

     * Sets the hue value of the color and requests an update from the host.

6✔

626

6✔

627

     * @param hue - The hue value to set, represented as a number.

6✔

628

*/

6✔

629

    set hue(hue: number) {

6✔

630

        this._color.set('h', hue);

79✔

631

        this.host.requestUpdate();

79✔

632

79✔

633

6✔

634

/**

6✔

635

     * Creates an instance of ColorController.

6✔

636

6✔

637

     * @param host - The ReactiveElement that this controller is associated with.

6✔

638

     * @param options - An object containing optional parameters.

6✔

639

     * @param options.manageAs - A string to manage the controller as a specific type.

6✔

640

*/

6✔

641

    constructor(

6✔

642

        host: ReactiveElement,

134✔

643

134✔

644

            manageAs,

134✔

645

        }: {

134✔

646

            manageAs?: string;

134✔

647

        } = {}

134✔

648

) {

134✔

649

        this.host = host;

134✔

650

        this.manageAs = manageAs;

134✔

651

134✔

652

6✔

653

/**

6✔

654

     * Converts the current color to the specified format.

6✔

655

6✔

656

     * @param format - The desired color format. It can be a string representing one of the valid formats

6✔

657

     * ('srgb', 'hsva', 'hsv', 'hsl', 'hsla') or a ColorSpace object.

6✔

658

     * @returns The color object in the specified format.

6✔

659

     * @throws Will throw an error if the provided format is not a valid string format.

6✔

660

*/

6✔

661

    getColor(format: string | ColorSpace): ColorObject {

6✔

662

        const validFormats = ['srgb', 'hsva', 'hsv', 'hsl', 'hsla'];

5✔

666

5✔

667

        return this._color.to(format);

5✔

668

5✔

669

6✔

670

/**

6✔

671

     * Converts the current color to an HSL string representation.

6✔

672

6✔

673

     * @returns {string} The HSL string representation of the current color.

6✔

674

*/

6✔

675

    getHslString(): string {

6✔

676

        return this._color.to('hsl').toString();

182✔

677

182✔

678

6✔

679

/**

6✔

680

     * Saves the current color state by cloning the current color and storing it

6✔

681

     * as the previous color. This allows for the ability to revert to the previous

6✔

682

     * color state if needed.

6✔

683

6✔

684

     * @returns {void}

6✔

685

*/

6✔

686

    savePreviousColor(): void {

6✔

687

        this._previousColor = this._color.clone();

81✔

688

81✔

689

6✔

690

/**

6✔

691

     * Restores the color to the previously saved color value.

6✔

692

6✔

693

     * This method sets the current color (`_color`) to the previously stored color (`_previousColor`).

6✔

694

*/

6✔

695

    restorePreviousColor(): void {

6✔

696

        this._color = this._previousColor;

3✔

697

3✔

698

6✔

adobe / spectrum-web-components / 13496326781

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