[react_native] JS files from D2172754: support setting the cursor position in TextInput

Libraries/Components/TextInput/TextInput.js

@@ -44,6 +44,8 @@ var AndroidTextInputAttributes = {
   autoCapitalize: true,
   autoCorrect: true,
   autoFocus: true,
+  textAlign: true,
+  textAlignVertical: true,
   keyboardType: true,
   multiline: true,
   password: true,
@@ -124,6 +126,19 @@ var TextInput = React.createClass({
      * If true, focuses the input on componentDidMount. Default value is false.
      */
     autoFocus: PropTypes.bool,
+    /**
+     * Set the position of the cursor from where editing will begin.
+     */
+    textAlign: PropTypes.oneOf([
+      'start',
+      'center',
+      'end',
+    ]),
+    textAlignVertical: PropTypes.oneOf([
+      'top',
+      'center',
+      'bottom',
+    ]),
     /**
      * If false, text is not editable. Default value is true.
      */
@@ -466,6 +481,10 @@ var TextInput = React.createClass({
 
   _renderAndroid: function() {
     var autoCapitalize = RCTUIManager.UIText.AutocapitalizationType[this.props.autoCapitalize];
+    var textAlign =
+      RCTUIManager.AndroidTextInput.Constants.TextAlign[this.props.textAlign];
+    var textAlignVertical =
+      RCTUIManager.AndroidTextInput.Constants.TextAlignVertical[this.props.textAlignVertical];
     var children = this.props.children;
     var childCount = 0;
     ReactChildren.forEach(children, () => ++childCount);
@@ -482,6 +501,8 @@ var TextInput = React.createClass({
         style={[this.props.style]}
         autoCapitalize={autoCapitalize}
         autoCorrect={this.props.autoCorrect}
+        textAlign={textAlign}
+        textAlignVertical={textAlignVertical}
         keyboardType={this.props.keyboardType}
         multiline={this.props.multiline}
         onFocus={this._onFocus}