21 lines
494 B
JavaScript
21 lines
494 B
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @flow
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*/
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export default function getActiveElement(doc: ?Document): ?Element {
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doc = doc || (typeof document !== 'undefined' ? document : undefined);
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if (typeof doc === 'undefined') {
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return null;
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}
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try {
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return doc.activeElement || doc.body;
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} catch (e) {
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return doc.body;
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}
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}
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