web/hooks/useError.ts (14 lines of code) (raw):

/** * Copyright 2021 Google LLC * * 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 { Dispatch, SetStateAction, useState } from "react"; export type ErrorMessage = string | null; export type SetErrorMessage = Dispatch<SetStateAction<ErrorMessage>>; export type OnCloseError = () => void; const useError = (): { errorMessage: ErrorMessage; setErrorMessage: SetErrorMessage; onCloseError: OnCloseError; } => { const [errorMessage, setErrorMessage] = useState<ErrorMessage>(null); const onCloseError = () => setErrorMessage(null); return { errorMessage, setErrorMessage, onCloseError }; }; export { useError };