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Diffstat (limited to 'packages/taler-wallet-webextension/src/hooks/useLocalStorage.ts')
-rw-r--r-- | packages/taler-wallet-webextension/src/hooks/useLocalStorage.ts | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/packages/taler-wallet-webextension/src/hooks/useLocalStorage.ts b/packages/taler-wallet-webextension/src/hooks/useLocalStorage.ts deleted file mode 100644 index 387798c96..000000000 --- a/packages/taler-wallet-webextension/src/hooks/useLocalStorage.ts +++ /dev/null @@ -1,83 +0,0 @@ -/* - This file is part of GNU Taler - (C) 2022 Taler Systems S.A. - - GNU Taler is free software; you can redistribute it and/or modify it under the - terms of the GNU General Public License as published by the Free Software - Foundation; either version 3, or (at your option) any later version. - - GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY - WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR - A PARTICULAR PURPOSE. See the GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along with - GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/> - */ - -/** - * - * @author Sebastian Javier Marchano (sebasjm) - */ - -import { StateUpdater, useState } from "preact/hooks"; - -export function useLocalStorage( - key: string, - initialValue?: string, -): [string | undefined, StateUpdater<string | undefined>] { - const [storedValue, setStoredValue] = useState<string | undefined>( - (): string | undefined => { - return typeof window !== "undefined" - ? window.localStorage.getItem(key) || initialValue - : initialValue; - }, - ); - - const setValue = ( - value?: string | ((val?: string) => string | undefined), - ): void => { - setStoredValue((p) => { - const toStore = value instanceof Function ? value(p) : value; - if (typeof window !== "undefined") { - if (!toStore) { - window.localStorage.removeItem(key); - } else { - window.localStorage.setItem(key, toStore); - } - } - return toStore; - }); - }; - - return [storedValue, setValue]; -} - -//TODO: merge with the above function -export function useNotNullLocalStorage( - key: string, - initialValue: string, -): [string, StateUpdater<string>, boolean] { - const [storedValue, setStoredValue] = useState<string>((): string => { - return typeof window !== "undefined" - ? window.localStorage.getItem(key) || initialValue - : initialValue; - }); - - const setValue = (value: string | ((val: string) => string)): void => { - const valueToStore = value instanceof Function ? value(storedValue) : value; - setStoredValue(valueToStore); - if (typeof window !== "undefined") { - if (!valueToStore) { - window.localStorage.removeItem(key); - } else { - window.localStorage.setItem(key, valueToStore); - } - } - }; - - const isSaved = - typeof window === "undefined" - ? false - : window.localStorage.getItem(key) !== null; - return [storedValue, setValue, isSaved]; -} |