[macOS] Rename FlutterViewController.id to viewId (flutter/engine#40323)

[macOS] Rename FlutterViewController.id to viewId

engine/src/flutter/shell/platform/darwin/macos/framework/Headers/FlutterViewController.h

@@ -61,7 +61,7 @@ FLUTTER_DARWIN_EXPORT
  * If the view controller is unattached (see FlutterViewController#attached),
  * reading this property throws an assertion.
  */
-@property(nonatomic, readonly) uint64_t id;
+@property(nonatomic, readonly) uint64_t viewId;
 
 /**
  * The style of mouse tracking to use for the view. Defaults to

engine/src/flutter/shell/platform/darwin/macos/framework/Source/FlutterEngine.mm

@@ -556,7 +556,7 @@ static void OnPlatformMessage(const FlutterPlatformMessage* message, FlutterEngi
            @"The incoming view controller is already attached to an engine.");
   NSAssert([_viewControllers objectForKey:@(viewId)] == nil, @"The requested view ID is occupied.");
   [controller attachToEngine:self withId:viewId];
-  NSAssert(controller.id == viewId, @"Failed to assign view ID.");
+  NSAssert(controller.viewId == viewId, @"Failed to assign view ID.");
   [_viewControllers setObject:controller forKey:@(viewId)];
 }
 
@@ -576,7 +576,7 @@ static void OnPlatformMessage(const FlutterPlatformMessage* message, FlutterEngi
 
 - (FlutterViewController*)viewControllerForId:(uint64_t)viewId {
   FlutterViewController* controller = [_viewControllers objectForKey:@(viewId)];
-  NSAssert(controller == nil || controller.id == viewId,
+  NSAssert(controller == nil || controller.viewId == viewId,
            @"The stored controller has unexpected view ID.");
   return controller;
 }
@@ -598,8 +598,8 @@ static void OnPlatformMessage(const FlutterPlatformMessage* message, FlutterEngi
              controller.engine);
     [self registerViewController:controller forId:kFlutterDefaultViewId];
   } else if (currentController != nil && controller == nil) {
-    NSAssert(currentController.id == kFlutterDefaultViewId,
-             @"The default controller has an unexpected ID %llu", currentController.id);
+    NSAssert(currentController.viewId == kFlutterDefaultViewId,
+             @"The default controller has an unexpected ID %llu", currentController.viewId);
     // From non-nil to nil.
     [self deregisterViewControllerForId:kFlutterDefaultViewId];
     [self shutDownIfNeeded];
@@ -669,7 +669,7 @@ static void OnPlatformMessage(const FlutterPlatformMessage* message, FlutterEngi
 - (void)removeViewController:(nonnull FlutterViewController*)viewController {
   NSAssert([viewController attached] && viewController.engine == self,
            @"The given view controller is not associated with this engine.");
-  [self deregisterViewControllerForId:viewController.id];
+  [self deregisterViewControllerForId:viewController.viewId];
   [self shutDownIfNeeded];
 }
 
@@ -733,7 +733,7 @@ static void OnPlatformMessage(const FlutterPlatformMessage* message, FlutterEngi
 }
 
 - (void)updateWindowMetricsForViewController:(FlutterViewController*)viewController {
-  if (viewController.id != kFlutterDefaultViewId) {
+  if (viewController.viewId != kFlutterDefaultViewId) {
     // TODO(dkwingsmt): The embedder API only supports single-view for now. As
     // embedder APIs are converted to multi-view, this method should support any
     // views.
@@ -742,7 +742,7 @@ static void OnPlatformMessage(const FlutterPlatformMessage* message, FlutterEngi
   if (!_engine || !viewController || !viewController.viewLoaded) {
     return;
   }
-  NSAssert([self viewControllerForId:viewController.id] == viewController,
+  NSAssert([self viewControllerForId:viewController.viewId] == viewController,
            @"The provided view controller is not attached to this engine.");
   NSView* view = viewController.flutterView;
   CGRect scaledBounds = [view convertRectToBacking:view.bounds];

engine/src/flutter/shell/platform/darwin/macos/framework/Source/FlutterEngineTest.mm

@@ -646,7 +646,7 @@ TEST_F(FlutterEngineTest, ManageControllersIfInitiatedByController) {
   @autoreleasepool {
     // Create FVC1.
     viewController1 = [[FlutterViewController alloc] initWithProject:project];
-    EXPECT_EQ(viewController1.id, 0ull);
+    EXPECT_EQ(viewController1.viewId, 0ull);
 
     engine = viewController1.engine;
     engine.viewController = nil;
@@ -663,7 +663,7 @@ TEST_F(FlutterEngineTest, ManageControllersIfInitiatedByController) {
 
   engine.viewController = viewController1;
   EXPECT_EQ(engine.viewController, viewController1);
-  EXPECT_EQ(viewController1.id, 0ull);
+  EXPECT_EQ(viewController1.viewId, 0ull);
 }
 
 TEST_F(FlutterEngineTest, ManageControllersIfInitiatedByEngine) {
@@ -677,7 +677,7 @@ TEST_F(FlutterEngineTest, ManageControllersIfInitiatedByEngine) {
 
   @autoreleasepool {
     viewController1 = [[FlutterViewController alloc] initWithEngine:engine nibName:nil bundle:nil];
-    EXPECT_EQ(viewController1.id, 0ull);
+    EXPECT_EQ(viewController1.viewId, 0ull);
     EXPECT_EQ(engine.viewController, viewController1);
 
     engine.viewController = nil;
@@ -685,7 +685,7 @@ TEST_F(FlutterEngineTest, ManageControllersIfInitiatedByEngine) {
     FlutterViewController* viewController2 = [[FlutterViewController alloc] initWithEngine:engine
                                                                                    nibName:nil
                                                                                     bundle:nil];
-    EXPECT_EQ(viewController2.id, 0ull);
+    EXPECT_EQ(viewController2.viewId, 0ull);
     EXPECT_EQ(engine.viewController, viewController2);
   }
   // FVC2 is deallocated but FVC1 is retained.
@@ -694,7 +694,7 @@ TEST_F(FlutterEngineTest, ManageControllersIfInitiatedByEngine) {
 
   engine.viewController = viewController1;
   EXPECT_EQ(engine.viewController, viewController1);
-  EXPECT_EQ(viewController1.id, 0ull);
+  EXPECT_EQ(viewController1.viewId, 0ull);
 }
 
 TEST_F(FlutterEngineTest, HandlesTerminationRequest) {

engine/src/flutter/shell/platform/darwin/macos/framework/Source/FlutterViewController.mm

@@ -315,11 +315,9 @@ void OnKeyboardLayoutChanged(CFNotificationCenterRef center,
   FlutterDartProject* _project;
 
   std::shared_ptr<flutter::AccessibilityBridgeMac> _bridge;
-
-  uint64_t _id;
 }
 
-@dynamic id;
+@synthesize viewId = _viewId;
 @dynamic view;
 @dynamic accessibilityBridge;
 
@@ -341,7 +339,7 @@ static void CommonInit(FlutterViewController* controller, FlutterEngine* engine)
             @"The FlutterViewController unexpectedly stays unattached after initialization. "
             @"In unit tests, this is likely because either the FlutterViewController or "
             @"the FlutterEngine is mocked. Please subclass these classes instead.",
-            controller.engine, controller.id);
+            controller.engine, controller.viewId);
   controller->_mouseTrackingMode = FlutterMouseTrackingModeInKeyWindow;
   controller->_textInputPlugin = [[FlutterTextInputPlugin alloc] initWithViewController:controller];
   [controller initializeKeyboard];
@@ -457,9 +455,9 @@ static void CommonInit(FlutterViewController* controller, FlutterEngine* engine)
   [_flutterView setBackgroundColor:_backgroundColor];
 }
 
-- (uint64_t)id {
+- (uint64_t)viewId {
   NSAssert([self attached], @"This view controller is not attched.");
-  return _id;
+  return _viewId;
 }
 
 - (void)onPreEngineRestart {
@@ -489,7 +487,7 @@ static void CommonInit(FlutterViewController* controller, FlutterEngine* engine)
 - (void)attachToEngine:(nonnull FlutterEngine*)engine withId:(uint64_t)viewId {
   NSAssert(_engine == nil, @"Already attached to an engine %@.", _engine);
   _engine = engine;
-  _id = viewId;
+  _viewId = viewId;
 }
 
 - (void)detachFromEngine {