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25 lines
1.1 KiB
TypeScript
25 lines
1.1 KiB
TypeScript
/*
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* Copyright (C) Contributors to the Suwayomi project
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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import React, { useState, Dispatch, SetStateAction } from 'react';
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import storage from './localStorage';
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// eslint-disable-next-line max-len
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export default function useLocalStorage<T>(key: string, defaultValue: T | (() => T)) : [T, Dispatch<SetStateAction<T>>] {
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const initialState = defaultValue instanceof Function ? defaultValue() : defaultValue;
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const [storedValue, setStoredValue] = useState<T>(storage.getItem(key, initialState));
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const setValue = ((value: T | ((prevState: T) => T)) => {
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// Allow value to be a function so we have same API as useState
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const valueToStore = value instanceof Function ? value(storedValue) : value;
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setStoredValue(valueToStore);
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storage.setItem(key, valueToStore);
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}) as React.Dispatch<React.SetStateAction<T>>;
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return [storedValue, setValue];
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}
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