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ownerDocument.js
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/* * The MIT License (MIT) * * Copyright (c) 2015 - present Instructure, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ import { findDOMNode } from './findDOMNode'; import canUseDOM from './canUseDOM'; /** * --- * category: utilities/DOM * --- * * Retrieve the owner document of a specified element * @module ownerDocument * @param { Node | Window | React.ReactElement | function | null } el * @returns { Document | null} the owner document */ function ownerDocument(el) { const node = el && findDOMNode(el); let ownerDocument; if (node && 'ownerDocument' in node) { ownerDocument = node.ownerDocument; } const doc = canUseDOM ? window.document : void 0; return ownerDocument || doc; } export default ownerDocument; export { ownerDocument };