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31 lines
1.2 KiB
Plaintext
31 lines
1.2 KiB
Plaintext
/*
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* Copyright 2023 Adobe. All rights reserved.
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* This file is licensed to you under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License. You may obtain a copy
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* of the License at http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under
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* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
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* OF ANY KIND, either express or implied. See the License for the specific language
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* governing permissions and limitations under the License.
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*/
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import React, {useCallback, useRef} from 'react';
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import {useLayoutEffect} from './useLayoutEffect';
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// Use the earliest effect type possible. useInsertionEffect runs during the mutation phase,
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// before all layout effects, but is available only in React 18 and later.
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const useEarlyEffect = React['useInsertionEffect'] ?? useLayoutEffect;
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export function useEffectEvent<T extends Function>(fn?: T): T {
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const ref = useRef<T | null | undefined>(null);
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useEarlyEffect(() => {
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ref.current = fn;
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}, [fn]);
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// @ts-ignore
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return useCallback<T>((...args) => {
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const f = ref.current!;
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return f?.(...args);
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}, []);
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}
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