@blueprintjs/datetime
Version:
Components for interacting with dates and times
55 lines • 2.21 kB
JavaScript
/*
* Copyright 2023 Palantir Technologies, Inc. All rights reserved.
*
* Licensed 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 CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import * as React from "react";
import { Utils } from "@blueprintjs/core";
/**
* Lazy-loads a date-fns locale for use in a datetime class component.
*/
export async function loadDateFnsLocale(localeCode) {
try {
const localeModule = await import(
/* webpackChunkName: "date-fns-locale-[request]" */
`date-fns/locale/${localeCode}/index.js`);
return localeModule.default;
}
catch {
if (!Utils.isNodeEnv("production")) {
console.error(`[Blueprint] Could not load "${localeCode}" date-fns locale, please check that this locale code is supported: https://github.com/date-fns/date-fns/tree/main/src/locale`);
}
return undefined;
}
}
/**
* Lazy-loads a date-fns locale for use in a datetime function component.
*/
export function useDateFnsLocale(localeOrCode, dateFnsLocaleLoader = loadDateFnsLocale) {
// make sure to set the locale correctly on first render if it is available
const [locale, setLocale] = React.useState(typeof localeOrCode === "object" ? localeOrCode : undefined);
React.useEffect(() => {
setLocale(prevLocale => {
if (typeof localeOrCode === "string") {
dateFnsLocaleLoader(localeOrCode).then(setLocale);
// keep the current locale for now, it will be updated async
return prevLocale;
}
else {
return localeOrCode;
}
});
}, [dateFnsLocaleLoader, localeOrCode]);
return locale;
}
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