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Diffstat (limited to 'node_modules/react-dom/lib/ReactDOMTextarea.js')
| -rw-r--r-- | node_modules/react-dom/lib/ReactDOMTextarea.js | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/node_modules/react-dom/lib/ReactDOMTextarea.js b/node_modules/react-dom/lib/ReactDOMTextarea.js new file mode 100644 index 000000000..d8442723a --- /dev/null +++ b/node_modules/react-dom/lib/ReactDOMTextarea.js @@ -0,0 +1,159 @@ +/** + * 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'), + _assign = require('object-assign'); + +var LinkedValueUtils = require('./LinkedValueUtils'); +var ReactDOMComponentTree = require('./ReactDOMComponentTree'); +var ReactUpdates = require('./ReactUpdates'); + +var invariant = require('fbjs/lib/invariant'); +var warning = require('fbjs/lib/warning'); + +var didWarnValueLink = false; +var didWarnValDefaultVal = false; + +function forceUpdateIfMounted() { + if (this._rootNodeID) { + // DOM component is still mounted; update + ReactDOMTextarea.updateWrapper(this); + } +} + +/** + * Implements a <textarea> host component that allows setting `value`, and + * `defaultValue`. This differs from the traditional DOM API because value is + * usually set as PCDATA children. + * + * If `value` is not supplied (or null/undefined), user actions that affect the + * value will trigger updates to the element. + * + * If `value` is supplied (and not null/undefined), the rendered element will + * not trigger updates to the element. Instead, the `value` prop must change in + * order for the rendered element to be updated. + * + * The rendered element will be initialized with an empty value, the prop + * `defaultValue` if specified, or the children content (deprecated). + */ +var ReactDOMTextarea = { + getHostProps: function (inst, props) { + !(props.dangerouslySetInnerHTML == null) ? process.env.NODE_ENV !== 'production' ? invariant(false, '`dangerouslySetInnerHTML` does not make sense on <textarea>.') : _prodInvariant('91') : void 0; + + // Always set children to the same thing. In IE9, the selection range will + // get reset if `textContent` is mutated. We could add a check in setTextContent + // to only set the value if/when the value differs from the node value (which would + // completely solve this IE9 bug), but Sebastian+Ben seemed to like this solution. + // The value can be a boolean or object so that's why it's forced to be a string. + var hostProps = _assign({}, props, { + value: undefined, + defaultValue: undefined, + children: '' + inst._wrapperState.initialValue, + onChange: inst._wrapperState.onChange + }); + + return hostProps; + }, + + mountWrapper: function (inst, props) { + if (process.env.NODE_ENV !== 'production') { + LinkedValueUtils.checkPropTypes('textarea', props, inst._currentElement._owner); + if (props.valueLink !== undefined && !didWarnValueLink) { + process.env.NODE_ENV !== 'production' ? warning(false, '`valueLink` prop on `textarea` is deprecated; set `value` and `onChange` instead.') : void 0; + didWarnValueLink = true; + } + if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValDefaultVal) { + process.env.NODE_ENV !== 'production' ? warning(false, 'Textarea elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled textarea ' + 'and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components') : void 0; + didWarnValDefaultVal = true; + } + } + + var value = LinkedValueUtils.getValue(props); + var initialValue = value; + + // Only bother fetching default value if we're going to use it + if (value == null) { + var defaultValue = props.defaultValue; + // TODO (yungsters): Remove support for children content in <textarea>. + var children = props.children; + if (children != null) { + if (process.env.NODE_ENV !== 'production') { + process.env.NODE_ENV !== 'production' ? warning(false, 'Use the `defaultValue` or `value` props instead of setting ' + 'children on <textarea>.') : void 0; + } + !(defaultValue == null) ? process.env.NODE_ENV !== 'production' ? invariant(false, 'If you supply `defaultValue` on a <textarea>, do not pass children.') : _prodInvariant('92') : void 0; + if (Array.isArray(children)) { + !(children.length <= 1) ? process.env.NODE_ENV !== 'production' ? invariant(false, '<textarea> can only have at most one child.') : _prodInvariant('93') : void 0; + children = children[0]; + } + + defaultValue = '' + children; + } + if (defaultValue == null) { + defaultValue = ''; + } + initialValue = defaultValue; + } + + inst._wrapperState = { + initialValue: '' + initialValue, + listeners: null, + onChange: _handleChange.bind(inst) + }; + }, + + updateWrapper: function (inst) { + var props = inst._currentElement.props; + + var node = ReactDOMComponentTree.getNodeFromInstance(inst); + var value = LinkedValueUtils.getValue(props); + if (value != null) { + // Cast `value` to a string to ensure the value is set correctly. While + // browsers typically do this as necessary, jsdom doesn't. + var newValue = '' + value; + + // To avoid side effects (such as losing text selection), only set value if changed + if (newValue !== node.value) { + node.value = newValue; + } + if (props.defaultValue == null) { + node.defaultValue = newValue; + } + } + if (props.defaultValue != null) { + node.defaultValue = props.defaultValue; + } + }, + + postMountWrapper: function (inst) { + // This is in postMount because we need access to the DOM node, which is not + // available until after the component has mounted. + var node = ReactDOMComponentTree.getNodeFromInstance(inst); + var textContent = node.textContent; + + // Only set node.value if textContent is equal to the expected + // initial value. In IE10/IE11 there is a bug where the placeholder attribute + // will populate textContent as well. + // https://developer.microsoft.com/microsoft-edge/platform/issues/101525/ + if (textContent === inst._wrapperState.initialValue) { + node.value = textContent; + } + } +}; + +function _handleChange(event) { + var props = this._currentElement.props; + var returnValue = LinkedValueUtils.executeOnChange(props, event); + ReactUpdates.asap(forceUpdateIfMounted, this); + return returnValue; +} + +module.exports = ReactDOMTextarea;
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