File size: 2,225 Bytes
1e92f2d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | import { defaultI18n } from '@wordpress/i18n';
import { I18nProvider as WPI18nProvider } from '@wordpress/react-i18n';
import { useEffect, useState, type PropsWithChildren } from 'react';
import { useAuth } from './auth';
async function fetchLocaleData( language: string, signal: AbortSignal ) {
if ( language === 'en' ) {
return [ language, undefined ];
}
try {
const response = await fetch(
`https://widgets.wp.com/languages/calypso/${ language }-v1.1.json`,
{ signal }
);
return [ language, await response.json() ];
} catch ( error ) {
// Only fall back to `en` when the error is not an abort
if ( error instanceof Error && error.name === 'AbortError' ) {
throw error;
}
// Fall back to `en` when fetching the language data fails. Without this
// the i18n provider would be stuck forever in a non-loaded state.
return [ 'en', undefined ];
}
}
// Determine the locale to use. The current implementation reads the logged-in user's
// locale, but it can be made more flexible and support multiple sources. E.g., a locale
// slug in the route path.
function useLocaleSlug() {
const { user } = useAuth();
return user.locale_variant || user.language || 'en';
}
export function I18nProvider( { children }: PropsWithChildren ) {
const language = useLocaleSlug();
const [ loadedLocale, setLoadedLocale ] = useState< string | null >( null );
const i18n = defaultI18n;
useEffect( () => {
const abortController = new AbortController();
fetchLocaleData( language, abortController.signal )
.then( ( [ realLanguage, data ] ) => {
i18n.resetLocaleData( data );
// `realLanguage` can be different from `language` when loading language data fails
// and it falls back to `en`.
setLoadedLocale( realLanguage );
} )
.catch( () => {
// Ignore abort errors as they are expected during cleanup
} );
return () => {
abortController.abort();
};
}, [ i18n, language ] );
// Render the sub-tree only after the initial locale data are loaded. We don't want a
// flash of `en` content on the initial render that's updated a moment later.
if ( loadedLocale === null ) {
return null;
}
return <WPI18nProvider i18n={ i18n } children={ children } />;
}
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