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frontend/lib/src/hooks/useUpdateUiValue.ts
44 строки
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Ken McGrady
Update copyright header to 2026 (#13491)
02 янв 2026, 16:21
Не верифицирован
02 янв 2026, 16:21
374540a
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/** * Copyright (c) Streamlit Inc. (2018-2022) Snowflake Inc. (2022-2026) * * 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, useEffect } from "react" /** * Sets the ui value to the new value if they are not equal and the ui value is not dirty. * If the ui value is dirty, it means the user has made changes to the ui value that have not been synced to the backend. * * @param newValue the new value to set the ui value to * @param uiValue the current ui value * @param setUiValue the function to set the ui value * @param dirty whether the ui value is dirty (has unsynced changes) */ export default function useUpdateUiValue<T>( newValue: T, uiValue: T, setUiValue: Dispatch<SetStateAction<T>>, dirty: boolean ): void { useEffect(() => { // the UI did not sync its value if (dirty) { return } // If the incoming value changes, update the UI value (e.g. set via state) if (newValue !== uiValue) { setUiValue(newValue) } }, [newValue, uiValue, dirty, setUiValue]) }