Marc Wieland
33181acf83
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28 lines
1.1 KiB
TypeScript
28 lines
1.1 KiB
TypeScript
/*
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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 {isScrollable} from './isScrollable';
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export function getScrollParent(node: Element, checkForOverflow?: boolean): Element {
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let scrollableNode: Element | null = node;
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if (isScrollable(scrollableNode, checkForOverflow)) {
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scrollableNode = scrollableNode.parentElement;
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}
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while (scrollableNode && !isScrollable(scrollableNode, checkForOverflow)) {
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scrollableNode = scrollableNode.parentElement;
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}
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return scrollableNode || document.scrollingElement || document.documentElement;
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}
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