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Add Image.resolveAssetSource #2728

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Add Image.resolveAssetSource #2728

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30 changes: 30 additions & 0 deletions packages/react-native-web/src/exports/Image/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -167,6 +167,12 @@ interface ImageStatics {
failure: () => void
) => void;
prefetch: (uri: string) => Promise<void>;
resolveAssetSource: (source: $PropertyType<ImageProps, 'source'>) => {
height: ?number,
width: ?number,
scale: number,
uri: string
};
queryCache: (
uris: Array<string>
) => Promise<{| [uri: string]: 'disk/memory' |}>;
Expand Down Expand Up @@ -375,6 +381,30 @@ ImageWithStatics.queryCache = function (uris) {
return ImageLoader.queryCache(uris);
};

ImageWithStatics.resolveAssetSource = function (source) {
if (typeof source !== 'number') {
throw new Error(
'May only call Image.resolveAssetSource with images included in the asset registry'
);
}

const asset = getAssetByID(source);
const uri = resolveAssetUri(source);

if (!asset || !uri) {
throw new Error(
'Unable to find requested resource in asset registry - ' + source
);
}

return {
height: asset.height,
width: asset.width,
uri,
scale: asset.scales[0]
};
};

const styles = StyleSheet.create({
root: {
flexBasis: 'auto',
Expand Down