62 строки
1.7 KiB
JavaScript
62 строки
1.7 KiB
JavaScript
/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @format
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* @flow strict-local
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*/
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'use strict';
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const Platform = require('../Utilities/Platform');
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const normalizeColor = require('./normalizeColor');
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import type {ColorValue} from './StyleSheet';
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import type {NativeColorValue} from './PlatformColorValueTypes';
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export type ProcessedColorValue = number | NativeColorValue;
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/* eslint no-bitwise: 0 */
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function processColor(color?: ?(number | ColorValue)): ?ProcessedColorValue {
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if (color === undefined || color === null) {
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return color;
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}
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let normalizedColor = normalizeColor(color);
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if (normalizedColor === null || normalizedColor === undefined) {
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return undefined;
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}
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if (typeof normalizedColor === 'object') {
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const processColorObject =
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require('./PlatformColorValueTypes').processColorObject;
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const processedColorObj = processColorObject(normalizedColor);
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if (processedColorObj != null) {
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return processedColorObj;
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}
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}
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if (typeof normalizedColor !== 'number') {
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return null;
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}
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// Converts 0xrrggbbaa into 0xaarrggbb
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normalizedColor = ((normalizedColor << 24) | (normalizedColor >>> 8)) >>> 0;
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if (Platform.OS === 'android') {
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// Android use 32 bit *signed* integer to represent the color
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// We utilize the fact that bitwise operations in JS also operates on
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// signed 32 bit integers, so that we can use those to convert from
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// *unsigned* to *signed* 32bit int that way.
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normalizedColor = normalizedColor | 0x0;
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}
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return normalizedColor;
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}
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module.exports = processColor;
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