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.
40 lines
1.1 KiB
TypeScript
40 lines
1.1 KiB
TypeScript
/*
|
|
Copyright 2024 New Vector Ltd.
|
|
Copyright 2020 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 { Dispatch, useCallback, useEffect, useState } from "react";
|
|
|
|
const getValue = <T>(key: string, initialValue: T): T => {
|
|
try {
|
|
const item = window.localStorage.getItem(key);
|
|
return item ? JSON.parse(item) : initialValue;
|
|
} catch {
|
|
return initialValue;
|
|
}
|
|
};
|
|
|
|
// Hook behaving like useState but persisting the value to localStorage. Returns same as useState
|
|
export const useLocalStorageState = <T>(key: string, initialValue: T): [T, Dispatch<T>] => {
|
|
const lsKey = "mx_" + key;
|
|
|
|
const [value, setValue] = useState<T>(getValue(lsKey, initialValue));
|
|
|
|
useEffect(() => {
|
|
setValue(getValue(lsKey, initialValue));
|
|
}, [lsKey, initialValue]);
|
|
|
|
const _setValue: Dispatch<T> = useCallback(
|
|
(v: T) => {
|
|
window.localStorage.setItem(lsKey, JSON.stringify(v));
|
|
setValue(v);
|
|
},
|
|
[lsKey],
|
|
);
|
|
|
|
return [value, _setValue];
|
|
};
|