@react-aria/i18n
Version:
Spectrum UI components in React
43 lines (37 loc) • 1.71 kB
JavaScript
/*
* Copyright 2020 Adobe. All rights reserved.
* This file is licensed to you under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. You may obtain a copy
* of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under
* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
* OF ANY KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
import { MessageDictionary, MessageFormatter } from '@internationalized/message';
import { useCallback, useMemo } from 'react';
import { useLocale } from '@react-aria/i18n';
const cache = new WeakMap();
function getCachedDictionary(strings) {
let dictionary = cache.get(strings);
if (!dictionary) {
dictionary = new MessageDictionary(strings);
cache.set(strings, dictionary);
}
return dictionary;
}
/**
* Handles formatting ICU Message strings to create localized strings for the current locale.
* Automatically updates when the locale changes, and handles caching of messages for performance.
* @param strings - A mapping of languages to strings by key.
* @deprecated - use useLocalizedStringFormatter instead.
*/
export function useMessageFormatter(strings) {
let {
locale
} = useLocale();
let dictionary = useMemo(() => getCachedDictionary(strings), [strings]);
let formatter = useMemo(() => new MessageFormatter(locale, dictionary), [locale, dictionary]);
return useCallback((key, variables) => formatter.format(key, variables), [formatter]);
}