diff options
Diffstat (limited to 'node_modules/react-dom/lib/findDOMNode.js')
-rw-r--r-- | node_modules/react-dom/lib/findDOMNode.js | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/node_modules/react-dom/lib/findDOMNode.js b/node_modules/react-dom/lib/findDOMNode.js new file mode 100644 index 000000000..2b0df9ebb --- /dev/null +++ b/node_modules/react-dom/lib/findDOMNode.js @@ -0,0 +1,59 @@ +/** + * Copyright 2013-present, Facebook, Inc. + * All rights reserved. + * + * This source code is licensed under the BSD-style license found in the + * LICENSE file in the root directory of this source tree. An additional grant + * of patent rights can be found in the PATENTS file in the same directory. + * + */ + +'use strict'; + +var _prodInvariant = require('./reactProdInvariant'); + +var ReactCurrentOwner = require('react/lib/ReactCurrentOwner'); +var ReactDOMComponentTree = require('./ReactDOMComponentTree'); +var ReactInstanceMap = require('./ReactInstanceMap'); + +var getHostComponentFromComposite = require('./getHostComponentFromComposite'); +var invariant = require('fbjs/lib/invariant'); +var warning = require('fbjs/lib/warning'); + +/** + * Returns the DOM node rendered by this element. + * + * See https://facebook.github.io/react/docs/top-level-api.html#reactdom.finddomnode + * + * @param {ReactComponent|DOMElement} componentOrElement + * @return {?DOMElement} The root node of this element. + */ +function findDOMNode(componentOrElement) { + if (process.env.NODE_ENV !== 'production') { + var owner = ReactCurrentOwner.current; + if (owner !== null) { + 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; + owner._warnedAboutRefsInRender = true; + } + } + if (componentOrElement == null) { + return null; + } + if (componentOrElement.nodeType === 1) { + return componentOrElement; + } + + var inst = ReactInstanceMap.get(componentOrElement); + if (inst) { + inst = getHostComponentFromComposite(inst); + return inst ? ReactDOMComponentTree.getNodeFromInstance(inst) : null; + } + + if (typeof componentOrElement.render === 'function') { + !false ? process.env.NODE_ENV !== 'production' ? invariant(false, 'findDOMNode was called on an unmounted component.') : _prodInvariant('44') : void 0; + } else { + !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; + } +} + +module.exports = findDOMNode;
\ No newline at end of file |