Introducting RCTTextInput, base class for both text inputs

Summary: Some basic same to both classes functionality was moved to base class, and it is just a beginning.

Reviewed By: mmmulani

Differential Revision: D5144429

fbshipit-source-id: 56c6400d46f4cf3c0058fe936cba524dd5d490df

Libraries/Text/RCTTextInput.m

@@ -0,0 +1,66 @@
+/**
+ * Copyright (c) 2015-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.
+ */
+
+#import "RCTTextInput.h"
+
+#import <React/RCTBridge.h>
+#import <React/RCTConvert.h>
+#import <React/RCTEventDispatcher.h>
+#import <React/RCTUtils.h>
+#import <React/UIView+React.h>
+
+@implementation RCTTextInput
+
+- (instancetype)initWithBridge:(RCTBridge *)bridge
+{
+  RCTAssertParam(bridge);
+
+  if (self = [super initWithFrame:CGRectZero]) {
+    _bridge = bridge;
+    _eventDispatcher = bridge.eventDispatcher;
+  }
+
+  return self;
+}
+
+RCT_NOT_IMPLEMENTED(- (instancetype)init)
+RCT_NOT_IMPLEMENTED(- (instancetype)initWithCoder:(NSCoder *)decoder)
+RCT_NOT_IMPLEMENTED(- (instancetype)initWithFrame:(CGRect)frame)
+
+- (id<RCTBackedTextInputViewProtocol>)backedTextInputView
+{
+  RCTAssert(NO, @"-[RCTTextInput backedTextInputView] must be implemented in subclass.");
+  return nil;
+}
+
+#pragma mark - Accessibility
+
+- (UIView *)reactAccessibleView
+{
+  return self.backedTextInputView;
+}
+
+#pragma mark - Focus Control
+
+- (void)reactFocus
+{
+  [self.backedTextInputView reactFocus];
+}
+
+- (void)reactBlur
+{
+  [self.backedTextInputView reactBlur];
+}
+
+- (void)didMoveToWindow
+{
+  [self.backedTextInputView reactFocusIfNeeded];
+}
+
+@end