From de98e0b232509d5f40c135d540a70e415272ff85 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian.dold@gmail.com>
Date: Wed, 3 May 2017 15:35:00 +0200
Subject: node_modules

---
 .../react-dom/lib/ReactReconcileTransaction.js     | 177 +++++++++++++++++++++
 1 file changed, 177 insertions(+)
 create mode 100644 node_modules/react-dom/lib/ReactReconcileTransaction.js

(limited to 'node_modules/react-dom/lib/ReactReconcileTransaction.js')

diff --git a/node_modules/react-dom/lib/ReactReconcileTransaction.js b/node_modules/react-dom/lib/ReactReconcileTransaction.js
new file mode 100644
index 000000000..fb1abaf9c
--- /dev/null
+++ b/node_modules/react-dom/lib/ReactReconcileTransaction.js
@@ -0,0 +1,177 @@
+/**
+ * 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 CallbackQueue = require('./CallbackQueue');
+var PooledClass = require('./PooledClass');
+var ReactBrowserEventEmitter = require('./ReactBrowserEventEmitter');
+var ReactInputSelection = require('./ReactInputSelection');
+var ReactInstrumentation = require('./ReactInstrumentation');
+var Transaction = require('./Transaction');
+var ReactUpdateQueue = require('./ReactUpdateQueue');
+
+/**
+ * Ensures that, when possible, the selection range (currently selected text
+ * input) is not disturbed by performing the transaction.
+ */
+var SELECTION_RESTORATION = {
+  /**
+   * @return {Selection} Selection information.
+   */
+  initialize: ReactInputSelection.getSelectionInformation,
+  /**
+   * @param {Selection} sel Selection information returned from `initialize`.
+   */
+  close: ReactInputSelection.restoreSelection
+};
+
+/**
+ * Suppresses events (blur/focus) that could be inadvertently dispatched due to
+ * high level DOM manipulations (like temporarily removing a text input from the
+ * DOM).
+ */
+var EVENT_SUPPRESSION = {
+  /**
+   * @return {boolean} The enabled status of `ReactBrowserEventEmitter` before
+   * the reconciliation.
+   */
+  initialize: function () {
+    var currentlyEnabled = ReactBrowserEventEmitter.isEnabled();
+    ReactBrowserEventEmitter.setEnabled(false);
+    return currentlyEnabled;
+  },
+
+  /**
+   * @param {boolean} previouslyEnabled Enabled status of
+   *   `ReactBrowserEventEmitter` before the reconciliation occurred. `close`
+   *   restores the previous value.
+   */
+  close: function (previouslyEnabled) {
+    ReactBrowserEventEmitter.setEnabled(previouslyEnabled);
+  }
+};
+
+/**
+ * Provides a queue for collecting `componentDidMount` and
+ * `componentDidUpdate` callbacks during the transaction.
+ */
+var ON_DOM_READY_QUEUEING = {
+  /**
+   * Initializes the internal `onDOMReady` queue.
+   */
+  initialize: function () {
+    this.reactMountReady.reset();
+  },
+
+  /**
+   * After DOM is flushed, invoke all registered `onDOMReady` callbacks.
+   */
+  close: function () {
+    this.reactMountReady.notifyAll();
+  }
+};
+
+/**
+ * Executed within the scope of the `Transaction` instance. Consider these as
+ * being member methods, but with an implied ordering while being isolated from
+ * each other.
+ */
+var TRANSACTION_WRAPPERS = [SELECTION_RESTORATION, EVENT_SUPPRESSION, ON_DOM_READY_QUEUEING];
+
+if (process.env.NODE_ENV !== 'production') {
+  TRANSACTION_WRAPPERS.push({
+    initialize: ReactInstrumentation.debugTool.onBeginFlush,
+    close: ReactInstrumentation.debugTool.onEndFlush
+  });
+}
+
+/**
+ * Currently:
+ * - The order that these are listed in the transaction is critical:
+ * - Suppresses events.
+ * - Restores selection range.
+ *
+ * Future:
+ * - Restore document/overflow scroll positions that were unintentionally
+ *   modified via DOM insertions above the top viewport boundary.
+ * - Implement/integrate with customized constraint based layout system and keep
+ *   track of which dimensions must be remeasured.
+ *
+ * @class ReactReconcileTransaction
+ */
+function ReactReconcileTransaction(useCreateElement) {
+  this.reinitializeTransaction();
+  // Only server-side rendering really needs this option (see
+  // `ReactServerRendering`), but server-side uses
+  // `ReactServerRenderingTransaction` instead. This option is here so that it's
+  // accessible and defaults to false when `ReactDOMComponent` and
+  // `ReactDOMTextComponent` checks it in `mountComponent`.`
+  this.renderToStaticMarkup = false;
+  this.reactMountReady = CallbackQueue.getPooled(null);
+  this.useCreateElement = useCreateElement;
+}
+
+var Mixin = {
+  /**
+   * @see Transaction
+   * @abstract
+   * @final
+   * @return {array<object>} List of operation wrap procedures.
+   *   TODO: convert to array<TransactionWrapper>
+   */
+  getTransactionWrappers: function () {
+    return TRANSACTION_WRAPPERS;
+  },
+
+  /**
+   * @return {object} The queue to collect `onDOMReady` callbacks with.
+   */
+  getReactMountReady: function () {
+    return this.reactMountReady;
+  },
+
+  /**
+   * @return {object} The queue to collect React async events.
+   */
+  getUpdateQueue: function () {
+    return ReactUpdateQueue;
+  },
+
+  /**
+   * Save current transaction state -- if the return value from this method is
+   * passed to `rollback`, the transaction will be reset to that state.
+   */
+  checkpoint: function () {
+    // reactMountReady is the our only stateful wrapper
+    return this.reactMountReady.checkpoint();
+  },
+
+  rollback: function (checkpoint) {
+    this.reactMountReady.rollback(checkpoint);
+  },
+
+  /**
+   * `PooledClass` looks for this, and will invoke this before allowing this
+   * instance to be reused.
+   */
+  destructor: function () {
+    CallbackQueue.release(this.reactMountReady);
+    this.reactMountReady = null;
+  }
+};
+
+_assign(ReactReconcileTransaction.prototype, Transaction, Mixin);
+
+PooledClass.addPoolingTo(ReactReconcileTransaction);
+
+module.exports = ReactReconcileTransaction;
\ No newline at end of file
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