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Isabel B
d3980dceab
Summary: Originally, normalizeColor.js was in Library/Color/ however, I noticed that its tests were in a completely different directly (Library/StyleSheet/__tests__) which was confusing. The other files such as processColor.js, setNormalizedAlphaColor.js had their tests in Library/StyleSheet/__tests__ as well. ## Changelog [Internal] [Changed] - Moved normalizeColor.js to a more appropriate directory where its tests live. Pull Request resolved: https://github.com/facebook/react-native/pull/27372 Test Plan: I simply moved a file and changed dependencies. The code should still function as is. Reviewed By: rickhanlonii, mdvacca Differential Revision: D18760210 Pulled By: yungsters fbshipit-source-id: 4c2400acabab35ccbb2533faa5c1d6487c9bf48e
42 lines
1.1 KiB
JavaScript
42 lines
1.1 KiB
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its 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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/* eslint no-bitwise: 0 */
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function processColor(color?: ?(string | number)): ?number {
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if (color === undefined || color === null) {
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return color;
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}
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let int32Color = normalizeColor(color);
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if (int32Color === null || int32Color === undefined) {
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return undefined;
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}
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// Converts 0xrrggbbaa into 0xaarrggbb
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int32Color = ((int32Color << 24) | (int32Color >>> 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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int32Color = int32Color | 0x0;
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}
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return int32Color;
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}
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module.exports = processColor;
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