React Native upgrade diff for AppDelegate between 0.67.4 and 0.69.5

AppDelegate.diff

--- AppDelegate.m	2022-09-24 11:31:14.000000000 +0200
+++ AppDelegate.mm	2022-09-24 11:29:53.000000000 +0200
@@ -4,42 +4,52 @@
 #import <React/RCTBundleURLProvider.h>
 #import <React/RCTRootView.h>
 
-#ifdef FB_SONARKIT_ENABLED
-#import <FlipperKit/FlipperClient.h>
-#import <FlipperKitLayoutPlugin/FlipperKitLayoutPlugin.h>
-#import <FlipperKitUserDefaultsPlugin/FKUserDefaultsPlugin.h>
-#import <FlipperKitNetworkPlugin/FlipperKitNetworkPlugin.h>
-#import <SKIOSNetworkPlugin/SKIOSNetworkAdapter.h>
-#import <FlipperKitReactPlugin/FlipperKitReactPlugin.h>
-
-static void InitializeFlipper(UIApplication *application) {
-  FlipperClient *client = [FlipperClient sharedClient];
-  SKDescriptorMapper *layoutDescriptorMapper = [[SKDescriptorMapper alloc] initWithDefaults];
-  [client addPlugin:[[FlipperKitLayoutPlugin alloc] initWithRootNode:application withDescriptorMapper:layoutDescriptorMapper]];
-  [client addPlugin:[[FKUserDefaultsPlugin alloc] initWithSuiteName:nil]];
-  [client addPlugin:[FlipperKitReactPlugin new]];
-  [client addPlugin:[[FlipperKitNetworkPlugin alloc] initWithNetworkAdapter:[SKIOSNetworkAdapter new]]];
-  [client start];
+#import <React/RCTAppSetupUtils.h>
+
+#if RCT_NEW_ARCH_ENABLED
+#import <React/CoreModulesPlugins.h>
+#import <React/RCTCxxBridgeDelegate.h>
+#import <React/RCTFabricSurfaceHostingProxyRootView.h>
+#import <React/RCTSurfacePresenter.h>
+#import <React/RCTSurfacePresenterBridgeAdapter.h>
+#import <ReactCommon/RCTTurboModuleManager.h>
+
+#import <react/config/ReactNativeConfig.h>
+
+static NSString *const kRNConcurrentRoot = @"concurrentRoot";
+
+@interface AppDelegate () <RCTCxxBridgeDelegate, RCTTurboModuleManagerDelegate> {
+  RCTTurboModuleManager *_turboModuleManager;
+  RCTSurfacePresenterBridgeAdapter *_bridgeAdapter;
+  std::shared_ptr<const facebook::react::ReactNativeConfig> _reactNativeConfig;
+  facebook::react::ContextContainer::Shared _contextContainer;
 }
+@end
 #endif
 
 @implementation AppDelegate
 
 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
 {
-#ifdef FB_SONARKIT_ENABLED
-  InitializeFlipper(application);
-#endif
+  RCTAppSetupPrepareApp(application);
 
   RCTBridge *bridge = [[RCTBridge alloc] initWithDelegate:self launchOptions:launchOptions];
-  RCTRootView *rootView = [[RCTRootView alloc] initWithBridge:bridge
-                                                   moduleName:@"RnDiffApp"
-                                            initialProperties:nil];
+
+#if RCT_NEW_ARCH_ENABLED
+  _contextContainer = std::make_shared<facebook::react::ContextContainer const>();
+  _reactNativeConfig = std::make_shared<facebook::react::EmptyReactNativeConfig const>();
+  _contextContainer->insert("ReactNativeConfig", _reactNativeConfig);
+  _bridgeAdapter = [[RCTSurfacePresenterBridgeAdapter alloc] initWithBridge:bridge contextContainer:_contextContainer];
+  bridge.surfacePresenter = _bridgeAdapter.surfacePresenter;
+#endif
+
+  NSDictionary *initProps = [self prepareInitialProps];
+  UIView *rootView = RCTAppSetupDefaultRootView(bridge, @"RnDiffApp", initProps);
 
   if (@available(iOS 13.0, *)) {
-      rootView.backgroundColor = [UIColor systemBackgroundColor];
+    rootView.backgroundColor = [UIColor systemBackgroundColor];
   } else {
-      rootView.backgroundColor = [UIColor whiteColor];
+    rootView.backgroundColor = [UIColor whiteColor];
   }
 
   self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
@@ -50,13 +60,74 @@
   return YES;
 }
 
+/// This method controls whether the `concurrentRoot`feature of React18 is turned on or off.
+///
+/// @see: https://reactjs.org/blog/2022/03/29/react-v18.html
+/// @note: This requires to be rendering on Fabric (i.e. on the New Architecture).
+/// @return: `true` if the `concurrentRoot` feture is enabled. Otherwise, it returns `false`.
+- (BOOL)concurrentRootEnabled
+{
+  // Switch this bool to turn on and off the concurrent root
+  return true;
+}
+
+- (NSDictionary *)prepareInitialProps
+{
+  NSMutableDictionary *initProps = [NSMutableDictionary new];
+
+#ifdef RCT_NEW_ARCH_ENABLED
+  initProps[kRNConcurrentRoot] = @([self concurrentRootEnabled]);
+#endif
+
+  return initProps;
+}
+
 - (NSURL *)sourceURLForBridge:(RCTBridge *)bridge
 {
 #if DEBUG
-  return [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index" fallbackResource:nil];
+  return [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index"];
 #else
   return [[NSBundle mainBundle] URLForResource:@"main" withExtension:@"jsbundle"];
-#endf
+#endif
+}
+
+#if RCT_NEW_ARCH_ENABLED
+
+#pragma mark - RCTCxxBridgeDelegate
+
+- (std::unique_ptr<facebook::react::JSExecutorFactory>)jsExecutorFactoryForBridge:(RCTBridge *)bridge
+{
+  _turboModuleManager = [[RCTTurboModuleManager alloc] initWithBridge:bridge
+                                                             delegate:self
+                                                            jsInvoker:bridge.jsCallInvoker];
+  return RCTAppSetupDefaultJsExecutorFactory(bridge, _turboModuleManager);
+}
+
+#pragma mark RCTTurboModuleManagerDelegate
+
+- (Class)getModuleClassFromName:(const char *)name
+{
+  return RCTCoreModulesClassProvider(name);
+}
+
+- (std::shared_ptr<facebook::react::TurboModule>)getTurboModule:(const std::string &)name
+                                                      jsInvoker:(std::shared_ptr<facebook::react::CallInvoker>)jsInvoker
+{
+  return nullptr;
 }
 
+- (std::shared_ptr<facebook::react::TurboModule>)getTurboModule:(const std::string &)name
+                                                     initParams:
+                                                         (const facebook::react::ObjCTurboModule::InitParams &)params
+{
+  return nullptr;
+}
+
+- (id<RCTTurboModule>)getModuleInstanceFromClass:(Class)moduleClass
+{
+  return RCTAppSetupDefaultModuleFromClass(moduleClass);
+}
+
+#endif
+
 @end