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Diffstat (limited to 'node_modules/react-dom/lib/FallbackCompositionState.js')
-rw-r--r-- | node_modules/react-dom/lib/FallbackCompositionState.js | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/node_modules/react-dom/lib/FallbackCompositionState.js b/node_modules/react-dom/lib/FallbackCompositionState.js deleted file mode 100644 index 43c0a1c92..000000000 --- a/node_modules/react-dom/lib/FallbackCompositionState.js +++ /dev/null @@ -1,94 +0,0 @@ -/** - * 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 _assign = require('object-assign'); - -var PooledClass = require('./PooledClass'); - -var getTextContentAccessor = require('./getTextContentAccessor'); - -/** - * This helper class stores information about text content of a target node, - * allowing comparison of content before and after a given event. - * - * Identify the node where selection currently begins, then observe - * both its text content and its current position in the DOM. Since the - * browser may natively replace the target node during composition, we can - * use its position to find its replacement. - * - * @param {DOMEventTarget} root - */ -function FallbackCompositionState(root) { - this._root = root; - this._startText = this.getText(); - this._fallbackText = null; -} - -_assign(FallbackCompositionState.prototype, { - destructor: function () { - this._root = null; - this._startText = null; - this._fallbackText = null; - }, - - /** - * Get current text of input. - * - * @return {string} - */ - getText: function () { - if ('value' in this._root) { - return this._root.value; - } - return this._root[getTextContentAccessor()]; - }, - - /** - * Determine the differing substring between the initially stored - * text content and the current content. - * - * @return {string} - */ - getData: function () { - if (this._fallbackText) { - return this._fallbackText; - } - - var start; - var startValue = this._startText; - var startLength = startValue.length; - var end; - var endValue = this.getText(); - var endLength = endValue.length; - - for (start = 0; start < startLength; start++) { - if (startValue[start] !== endValue[start]) { - break; - } - } - - var minEnd = startLength - start; - for (end = 1; end <= minEnd; end++) { - if (startValue[startLength - end] !== endValue[endLength - end]) { - break; - } - } - - var sliceTail = end > 1 ? 1 - end : undefined; - this._fallbackText = endValue.slice(start, sliceTail); - return this._fallbackText; - } -}); - -PooledClass.addPoolingTo(FallbackCompositionState); - -module.exports = FallbackCompositionState;
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