/** * React Fabric * @version 1.0.0 * @license MIT * @copyright 2024 Adarsh Pastakia * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ import { useDeferredValue, useEffectEvent, useState } from "react"; import { useEffectDebugger } from "./useEffectDebugger"; /** Hook managing a controlled value with a default fallback, using useDeferredValue for smooth updates. Returns [currentValue, updateValue]. */ export function useControlledValue(value: T | undefined, defaultValue: T | undefined) { const [currentValue, setCurrentValue] = useState(() => defaultValue); const deferred = useDeferredValue(value, defaultValue); const effectUpdate = useEffectEvent((value: T | undefined) => { setCurrentValue(value); }); useEffectDebugger( () => { effectUpdate(deferred); }, [deferred], "useControlledValue change", ); return { currentValue, updateValue: setCurrentValue }; }