69ee8fd96a
* Add commercial licence and update config files
* Update license in headers
* Revert "Update license in headers"
This reverts commit 7ed7949485.
* Update only spdx id
* Remove LicenseRef- from package.json
LicenseRef- no longer allowed in npm v3 package.json
This fixes the warning in the logs and failing build check.
32 lines
986 B
TypeScript
32 lines
986 B
TypeScript
/*
|
|
Copyright 2024 New Vector Ltd.
|
|
Copyright 2022 The Matrix.org Foundation C.I.C.
|
|
|
|
SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
|
|
Please see LICENSE files in the repository root for full details.
|
|
*/
|
|
|
|
import { useCallback, useRef } from "react";
|
|
|
|
/**
|
|
* Hook to prevent a slower response to an earlier query overwriting the result to a faster response of a later query
|
|
* @param onResultChanged
|
|
*/
|
|
export const useLatestResult = <T, R>(
|
|
onResultChanged: (result: R) => void,
|
|
): [(query: T | null) => void, (query: T | null, result: R) => void] => {
|
|
const ref = useRef<T | null>(null);
|
|
const setQuery = useCallback((query: T | null) => {
|
|
ref.current = query;
|
|
}, []);
|
|
const setResult = useCallback(
|
|
(query: T | null, result: R) => {
|
|
if (ref.current === query) {
|
|
onResultChanged(result);
|
|
}
|
|
},
|
|
[onResultChanged],
|
|
);
|
|
return [setQuery, setResult];
|
|
};
|