59 lines
2.4 KiB
JavaScript
59 lines
2.4 KiB
JavaScript
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/**
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* Copyright 2013-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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*/
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'use strict';
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var _prodInvariant = require('./reactProdInvariant');
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var ReactCurrentOwner = require('react/lib/ReactCurrentOwner');
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var ReactDOMComponentTree = require('./ReactDOMComponentTree');
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var ReactInstanceMap = require('./ReactInstanceMap');
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var getHostComponentFromComposite = require('./getHostComponentFromComposite');
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var invariant = require('fbjs/lib/invariant');
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var warning = require('fbjs/lib/warning');
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/**
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* Returns the DOM node rendered by this element.
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*
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* See https://facebook.github.io/react/docs/top-level-api.html#reactdom.finddomnode
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*
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* @param {ReactComponent|DOMElement} componentOrElement
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* @return {?DOMElement} The root node of this element.
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*/
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function findDOMNode(componentOrElement) {
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if (process.env.NODE_ENV !== 'production') {
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var owner = ReactCurrentOwner.current;
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if (owner !== null) {
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process.env.NODE_ENV !== 'production' ? warning(owner._warnedAboutRefsInRender, '%s is accessing findDOMNode inside its render(). ' + 'render() should be a pure function of props and state. It should ' + 'never access something that requires stale data from the previous ' + 'render, such as refs. Move this logic to componentDidMount and ' + 'componentDidUpdate instead.', owner.getName() || 'A component') : void 0;
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owner._warnedAboutRefsInRender = true;
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}
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}
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if (componentOrElement == null) {
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return null;
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}
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if (componentOrElement.nodeType === 1) {
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return componentOrElement;
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}
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var inst = ReactInstanceMap.get(componentOrElement);
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if (inst) {
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inst = getHostComponentFromComposite(inst);
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return inst ? ReactDOMComponentTree.getNodeFromInstance(inst) : null;
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}
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if (typeof componentOrElement.render === 'function') {
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!false ? process.env.NODE_ENV !== 'production' ? invariant(false, 'findDOMNode was called on an unmounted component.') : _prodInvariant('44') : void 0;
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} else {
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!false ? process.env.NODE_ENV !== 'production' ? invariant(false, 'Element appears to be neither ReactComponent nor DOMNode (keys: %s)', Object.keys(componentOrElement)) : _prodInvariant('45', Object.keys(componentOrElement)) : void 0;
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}
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}
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module.exports = findDOMNode;
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