mirror of
https://github.com/Novaloop-AG/healthchat-web.git
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David Langley
491f0cd08a
* Copyright headers 1 * Licence headers 2 * Copyright Headers 3 * Copyright Headers 4 * Copyright Headers 5 * Copyright Headers 6 * Copyright headers 7 * Add copyright headers for html and config file * Replace license files and update package.json * Update with CLA * lint
32 lines
953 B
TypeScript
32 lines
953 B
TypeScript
/*
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Copyright 2024 New Vector Ltd.
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Copyright 2022 The Matrix.org Foundation C.I.C.
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SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
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Please see LICENSE files in the repository root for full details.
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*/
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import { useCallback, useRef } from "react";
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/**
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* Hook to prevent a slower response to an earlier query overwriting the result to a faster response of a later query
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* @param onResultChanged
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*/
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export const useLatestResult = <T, R>(
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onResultChanged: (result: R) => void,
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): [(query: T | null) => void, (query: T | null, result: R) => void] => {
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const ref = useRef<T | null>(null);
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const setQuery = useCallback((query: T | null) => {
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ref.current = query;
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}, []);
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const setResult = useCallback(
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(query: T | null, result: R) => {
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if (ref.current === query) {
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onResultChanged(result);
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}
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},
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[onResultChanged],
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);
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return [setQuery, setResult];
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};
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