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feat: added
crossOrigin, referrerPolicy, srcSet, width, `heig…
…ht` and `src` props to the Image Component. (facebook#34481) Summary: This PR is for adding the support for `crossOrigin`, `referrerPolicy`, `width`, `height` and `srcSet` props to Image Component and mapping the `src` prop to `source.uri` of Image Component for the issue facebook#34424. An example is also added in the RNTester ImageExample. ## Changelog [General] [Changed] - Map the `src` prop to `source.uri` prop in Image Component. [General] [Added] - added `crossOrigin`, `referrerPolicy`, `width`, `height` and `srcSet` props to Image Component. Pull Request resolved: facebook#34481 Test Plan: 1. Navigate to Image Component Example in the RNTester app. 2. Contains an example of the Image component using the `src` and `srcSet` prop. 3. For headers, inspect the Image request using Flipper. <img src="https://user-images.githubusercontent.com/32268377/186153246-d7b72ce3-e082-46d9-87d1-aefacd3af34f.png" height="500" /> Reviewed By: christophpurrer Differential Revision: D38982041 Pulled By: cipolleschi fbshipit-source-id: dd6594e39b8f3b36cfcdafa35695254034f1fb7f
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| Original file line number | Diff line number | Diff line change |
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| /** | ||
| * Copyright (c) Meta Platforms, Inc. and affiliates. | ||
| * | ||
| * This source code is licensed under the MIT license found in the | ||
| * LICENSE file in the root directory of this source tree. | ||
| * | ||
| * @flow strict-local | ||
| * @format | ||
| */ | ||
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| 'use strict'; | ||
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| import type {ResolvedAssetSource} from './AssetSourceResolver'; | ||
| import type {ImageProps} from './ImageProps'; | ||
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| import resolveAssetSource from './resolveAssetSource'; | ||
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| /** | ||
| * A function which returns the appropriate value for image source | ||
| * by resolving the `source`, `src` and `srcSet` props. | ||
| */ | ||
| export function getImageSourcesFromImageProps( | ||
| imageProps: ImageProps, | ||
| ): ?ResolvedAssetSource | $ReadOnlyArray<{uri: string, ...}> { | ||
| let source = resolveAssetSource(imageProps.source); | ||
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| let sources; | ||
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| const {crossOrigin, referrerPolicy, src, srcSet, width, height} = imageProps; | ||
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| const headers: {[string]: string} = {}; | ||
| if (crossOrigin === 'use-credentials') { | ||
| headers['Access-Control-Allow-Credentials'] = 'true'; | ||
| } | ||
| if (referrerPolicy != null) { | ||
| headers['Referrer-Policy'] = referrerPolicy; | ||
| } | ||
| if (srcSet != null) { | ||
| const sourceList = []; | ||
| const srcSetList = srcSet.split(', '); | ||
| // `src` prop should be used with default scale if `srcSet` does not have 1x scale. | ||
| let shouldUseSrcForDefaultScale = true; | ||
| srcSetList.forEach(imageSrc => { | ||
| const [uri, xScale = '1x'] = imageSrc.split(' '); | ||
| if (!xScale.endsWith('x')) { | ||
| console.warn( | ||
| 'The provided format for scale is not supported yet. Please use scales like 1x, 2x, etc.', | ||
| ); | ||
| } else { | ||
| const scale = parseInt(xScale.split('x')[0], 10); | ||
| if (!isNaN(scale)) { | ||
| // 1x scale is provided in `srcSet` prop so ignore the `src` prop if provided. | ||
| shouldUseSrcForDefaultScale = | ||
| scale === 1 ? false : shouldUseSrcForDefaultScale; | ||
| sourceList.push({headers: headers, scale, uri, width, height}); | ||
| } | ||
| } | ||
| }); | ||
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| if (shouldUseSrcForDefaultScale && src != null) { | ||
| sourceList.push({ | ||
| headers: headers, | ||
| scale: 1, | ||
| uri: src, | ||
| width, | ||
| height, | ||
| }); | ||
| } | ||
| if (sourceList.length === 0) { | ||
| console.warn('The provided value for srcSet is not valid.'); | ||
| } | ||
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| sources = sourceList; | ||
| } else if (src != null) { | ||
| sources = [{uri: src, headers: headers, width, height}]; | ||
| } else { | ||
| sources = source; | ||
| } | ||
| return sources; | ||
| } |
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