flipper-plugin/lib/utils/useLocalStorageState.js

Flipper Desktop plugin SDK and components

"use strict";
/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @format
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.useLocalStorageState = void 0;
const react_1 = require("react");
const Tracked_1 = require("../ui/Tracked");
const useAssertStableRef_1 = require("./useAssertStableRef");
function useLocalStorageState(key, initialValue) {
    (0, useAssertStableRef_1.useAssertStableRef)(key, 'key');
    const scope = (0, Tracked_1.useCurrentScopeName)();
    const storageKey = `[useLocalStorage][${scope}]${key}`;
    // Based on https://usehooks.com/useLocalStorage/ (with minor adaptions)
    // State to store our value
    // Pass initial state function to useState so logic is only executed once
    const [storedValue, setStoredValue] = (0, react_1.useState)(() => {
        try {
            // Get from local storage by key
            const item = window.localStorage.getItem(storageKey);
            // Parse stored json or if none return initialValue
            return item
                ? JSON.parse(item)
                : typeof initialValue === 'function'
                    ? initialValue()
                    : initialValue;
        }
        catch (error) {
            // If error also return initialValue
            console.log(error);
            return initialValue;
        }
    });
    // Return a wrapped version of useState's setter function that ...
    // ... persists the new value to localStorage.
    const setValue = (0, react_1.useCallback)((value) => {
        setStoredValue((storedValue) => {
            const nextValue = typeof value === 'function' ? value(storedValue) : value;
            // Save to local storage
            window.localStorage.setItem(storageKey, JSON.stringify(nextValue));
            return nextValue;
        });
    }, [storageKey]);
    return [storedValue, setValue];
}
exports.useLocalStorageState = useLocalStorageState;
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