34 lines
1.2 KiB
Plaintext
34 lines
1.2 KiB
Plaintext
/*
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* Copyright 2020 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 {MutableRefObject} from 'react';
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import {RefObject} from '@react-types/shared';
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import {useLayoutEffect} from './';
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interface ContextValue<T> {
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ref?: MutableRefObject<T | null>
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}
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// Syncs ref from context with ref passed to hook
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export function useSyncRef<T>(context?: ContextValue<T> | null, ref?: RefObject<T | null>): void {
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useLayoutEffect(() => {
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if (context && context.ref && ref) {
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context.ref.current = ref.current;
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return () => {
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if (context.ref) {
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context.ref.current = null;
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}
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};
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}
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});
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}
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