element-web/src/hooks/useLatestResult.ts
Janne Mareike Koschinski 5096e7b992
Integrate searching public rooms and people into the new search experience (#8707)
* Implement searching for public rooms and users in new search experience
* Implement loading indicator for spotlight results
* Moved spotlight dialog into own subfolder
* Extract search result avatar into separate component
* Build generic new dropdown menu component
* Build new network menu based on new network dropdown component
* Switch roomdirectory to use new network dropdown
* Replace old networkdropdown with new networkdropdown
* Added component for public room result details
* Extract hooks and subcomponents from SpotlightDialog
* Create new hook to get profile info based for an mxid
* Add hook to automatically re-request search results
* Add hook to prevent out-of-order search results
* Extract member sort algorithm from InviteDialog
* Keep sorting for non-room results stable
* Sort people suggestions using sort algorithm from InviteDialog
* Add copy/copied tooltip for invite link option in spotlight
* Clamp length of topic for public room results
* Add unit test for useDebouncedSearch
* Add unit test for useProfileInfo
* Create cypress test cases for spotlight dialog
* Add test for useLatestResult to prevent out-of-order results
2022-06-15 16:14:05 +02:00

35 lines
1.3 KiB
TypeScript

/*
Copyright 2022 The Matrix.org Foundation C.I.C.
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 { 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];
};