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28 lines
1,015 B
JavaScript
28 lines
1,015 B
JavaScript
/*
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Copyright 2019 The Matrix.org Foundation C.I.C.
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Licensed 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.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* Automatically focuses the captured reference when receiving a non-null
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* object. Useful in scenarios where componentDidMount does not have a
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* useful reference to an element, but one needs to focus the element on
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* first render. Example usage: ref={focusCapturedRef}
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* @param {function} ref The React reference to focus on, if not null
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*/
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export function focusCapturedRef(ref) {
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if (ref) {
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ref.focus();
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}
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}
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