iOS: Fix autoCorrect doesn't revert to initial state

Summary:
There's an inconsistency in autoCorrect's default state:
  - If you don't specify a value for autoCorrect, it defaults to on.
  - If you specify true/false for autoCorrect and later specify null, autoCorrect turns off. It should have reverted to its initial state of on.

The reason for this discrepancy is that autoCorrect is exposed to JS as a boolean but it is actually an enum with three states in native:
  - UITextAutocorrectionTypeDefault (the default value)
  - UITextAutocorrectionTypeYes
  - UITextAutocorrectionTypeNo

This is fixed by explicitly mapping JS null to UITextAutocorrectionTypeDefault.

**Test plan (required)**

Verified that switching `autoCorrect` between `true`, `false`, and `null` all work correctly in single line and multiline `TextInputs`.

Adam Comella
Microsoft Corp.
Closes #11055

Differential Revision: D4226419

Pulled By: javache

fbshipit-source-id: e3e5769a3aa537f00fb56ca4ae622ff4213481c5

Author: Adam Comella

Libraries/Text/RCTConvert+Text.h

@@ -0,0 +1,16 @@
+/**
+ * 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 "RCTConvert.h"
+
+@interface RCTConvert (Text)
+
++ (UITextAutocorrectionType)UITextAutocorrectionType:(id)json;
+
+@end

Libraries/Text/RCTConvert+Text.m

@@ -0,0 +1,22 @@
+/**
+ * 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 "RCTConvert+Text.h"
+
+@implementation RCTConvert (Text)
+
++ (UITextAutocorrectionType)UITextAutocorrectionType:(id)json
+{
+  return
+    json == nil ? UITextAutocorrectionTypeDefault :
+    [RCTConvert BOOL:json] ? UITextAutocorrectionTypeYes :
+    UITextAutocorrectionTypeNo;
+}
+
+@end

Libraries/Text/RCTText.xcodeproj/project.pbxproj

@@ -27,6 +27,8 @@
 		58B511D01A9E6C5C00147676 /* RCTShadowText.m in Sources */ = {isa = PBXBuildFile; fileRef = 58B511CB1A9E6C5C00147676 /* RCTShadowText.m */; };
 		58B511D11A9E6C5C00147676 /* RCTTextManager.m in Sources */ = {isa = PBXBuildFile; fileRef = 58B511CD1A9E6C5C00147676 /* RCTTextManager.m */; };
 		58B512161A9E6EFF00147676 /* RCTText.m in Sources */ = {isa = PBXBuildFile; fileRef = 58B512141A9E6EFF00147676 /* RCTText.m */; };
+		AF3225F91DE5574F00D3E7E7 /* RCTConvert+Text.m in Sources */ = {isa = PBXBuildFile; fileRef = AF3225F81DE5574F00D3E7E7 /* RCTConvert+Text.m */; };
+		AF3225FA1DE5574F00D3E7E7 /* RCTConvert+Text.m in Sources */ = {isa = PBXBuildFile; fileRef = AF3225F81DE5574F00D3E7E7 /* RCTConvert+Text.m */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXCopyFilesBuildPhase section */
@@ -73,6 +75,8 @@
 		58B511CD1A9E6C5C00147676 /* RCTTextManager.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTTextManager.m; sourceTree = "<group>"; };
 		58B512141A9E6EFF00147676 /* RCTText.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTText.m; sourceTree = "<group>"; };
 		58B512151A9E6EFF00147676 /* RCTText.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RCTText.h; sourceTree = "<group>"; };
+		AF3225F71DE5574F00D3E7E7 /* RCTConvert+Text.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "RCTConvert+Text.h"; sourceTree = "<group>"; };
+		AF3225F81DE5574F00D3E7E7 /* RCTConvert+Text.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = "RCTConvert+Text.m"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -96,6 +100,8 @@
 		58B511921A9E6C1200147676 = {
 			isa = PBXGroup;
 			children = (
+				AF3225F71DE5574F00D3E7E7 /* RCTConvert+Text.h */,
+				AF3225F81DE5574F00D3E7E7 /* RCTConvert+Text.m */,
 				19FC5C861D41A4220090108F /* RCTTextSelection.h */,
 				19FC5C841D41A4120090108F /* RCTTextSelection.m */,
 				58B511C61A9E6C5C00147676 /* RCTRawTextManager.h */,
@@ -216,6 +222,7 @@
 				2D3B5F3B1D9B106F00451313 /* RCTTextView.m in Sources */,
 				2D3B5F3A1D9B106F00451313 /* RCTTextFieldManager.m in Sources */,
 				2D3B5F341D9B103100451313 /* RCTRawTextManager.m in Sources */,
+				AF3225FA1DE5574F00D3E7E7 /* RCTConvert+Text.m in Sources */,
 				2D3B5F3C1D9B106F00451313 /* RCTTextViewManager.m in Sources */,
 				2D3B5F331D9B102D00451313 /* RCTTextSelection.m in Sources */,
 				2D3B5F351D9B103300451313 /* RCTShadowRawText.m in Sources */,
@@ -233,6 +240,7 @@
 				1362F1001B4D51F400E06D8C /* RCTTextField.m in Sources */,
 				58B512161A9E6EFF00147676 /* RCTText.m in Sources */,
 				1362F1011B4D51F400E06D8C /* RCTTextFieldManager.m in Sources */,
+				AF3225F91DE5574F00D3E7E7 /* RCTConvert+Text.m in Sources */,
 				131B6AC11AF0CD0600FFC3E0 /* RCTTextViewManager.m in Sources */,
 				58B511CF1A9E6C5C00147676 /* RCTShadowRawText.m in Sources */,
 				58B511D01A9E6C5C00147676 /* RCTShadowText.m in Sources */,

Libraries/Text/RCTTextField.h

@@ -16,7 +16,6 @@
 @interface RCTTextField : UITextField
 
 @property (nonatomic, assign) BOOL caretHidden;
-@property (nonatomic, assign) BOOL autoCorrect;
 @property (nonatomic, assign) BOOL selectTextOnFocus;
 @property (nonatomic, assign) BOOL blurOnSubmit;
 @property (nonatomic, assign) UIEdgeInsets contentInset;

Libraries/Text/RCTTextField.m

@@ -149,16 +149,6 @@ - (CGRect)editingRectForBounds:(CGRect)bounds
   return [self textRectForBounds:bounds];
 }
 
-- (void)setAutoCorrect:(BOOL)autoCorrect
-{
-  self.autocorrectionType = (autoCorrect ? UITextAutocorrectionTypeYes : UITextAutocorrectionTypeNo);
-}
-
-- (BOOL)autoCorrect
-{
-  return self.autocorrectionType == UITextAutocorrectionTypeYes;
-}
-
 - (void)textFieldDidChange
 {
   _nativeEventCount++;

Libraries/Text/RCTTextFieldManager.m

@@ -13,6 +13,7 @@
 #import "RCTShadowView.h"
 #import "RCTTextField.h"
 #import "RCTFont.h"
+#import "RCTConvert+Text.h"
 
 @interface RCTTextFieldManager() <UITextFieldDelegate>
 
@@ -75,7 +76,7 @@ - (BOOL)textFieldShouldEndEditing:(RCTTextField *)textField
 }
 
 RCT_EXPORT_VIEW_PROPERTY(caretHidden, BOOL)
-RCT_EXPORT_VIEW_PROPERTY(autoCorrect, BOOL)
+RCT_REMAP_VIEW_PROPERTY(autoCorrect, autocorrectionType, UITextAutocorrectionType)
 RCT_REMAP_VIEW_PROPERTY(editable, enabled, BOOL)
 RCT_EXPORT_VIEW_PROPERTY(placeholder, NSString)
 RCT_EXPORT_VIEW_PROPERTY(placeholderTextColor, UIColor)

Libraries/Text/RCTTextView.h

@@ -16,7 +16,7 @@
 
 @interface RCTTextView : RCTView <UITextViewDelegate>
 
-@property (nonatomic, assign) BOOL autoCorrect;
+@property (nonatomic, assign) UITextAutocorrectionType autocorrectionType;
 @property (nonatomic, assign) BOOL blurOnSubmit;
 @property (nonatomic, assign) BOOL clearTextOnFocus;
 @property (nonatomic, assign) BOOL selectTextOnFocus;

Libraries/Text/RCTTextView.m

@@ -519,14 +519,14 @@ - (void)updatePlaceholderVisibility
   }
 }
 
-- (void)setAutoCorrect:(BOOL)autoCorrect
+- (void)setAutocorrectionType:(UITextAutocorrectionType)autocorrectionType
 {
-  _textView.autocorrectionType = (autoCorrect ? UITextAutocorrectionTypeYes : UITextAutocorrectionTypeNo);
+  _textView.autocorrectionType = autocorrectionType;
 }
 
-- (BOOL)autoCorrect
+- (UITextAutocorrectionType)autocorrectionType
 {
-  return _textView.autocorrectionType == UITextAutocorrectionTypeYes;
+  return _textView.autocorrectionType;
 }
 
 - (BOOL)textViewShouldBeginEditing:(UITextView *)textView

Libraries/Text/RCTTextViewManager.m

@@ -14,6 +14,7 @@
 #import "RCTShadowView.h"
 #import "RCTTextView.h"
 #import "RCTFont.h"
+#import "RCTConvert+Text.h"
 
 @implementation RCTTextViewManager
 
@@ -25,7 +26,7 @@ - (UIView *)view
 }
 
 RCT_REMAP_VIEW_PROPERTY(autoCapitalize, textView.autocapitalizationType, UITextAutocapitalizationType)
-RCT_EXPORT_VIEW_PROPERTY(autoCorrect, BOOL)
+RCT_REMAP_VIEW_PROPERTY(autoCorrect, autocorrectionType, UITextAutocorrectionType)
 RCT_EXPORT_VIEW_PROPERTY(blurOnSubmit, BOOL)
 RCT_EXPORT_VIEW_PROPERTY(clearTextOnFocus, BOOL)
 RCT_REMAP_VIEW_PROPERTY(color, textView.textColor, UIColor)