element-call-Github/src/useMediaQuery.ts
Robin a7624806b2 Upgrade eslint-plugin-matrix-org to 1.2.1
This upgrade came with a number of new lints that needed to be fixed across the code base. Primarily: explicit return types on functions, and explicit visibility modifiers on class members.
2023-09-22 18:07:06 -04:00

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1.2 KiB
TypeScript

/*
Copyright 2023 New Vector Ltd
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, useMemo, useState } from "react";
import { useEventTarget } from "./useEvents";
/**
* React hook that tracks whether the given media query matches.
*/
export function useMediaQuery(query: string): boolean {
const mediaQuery = useMemo(() => matchMedia(query), [query]);
const [numChanges, setNumChanges] = useState(0);
useEventTarget(
mediaQuery,
"change",
useCallback(() => setNumChanges((n) => n + 1), [setNumChanges])
);
// We want any change to the update counter to trigger an update here
// eslint-disable-next-line react-hooks/exhaustive-deps
return useMemo(() => mediaQuery.matches, [mediaQuery, numChanges]);
}