Dismiss presented modals and clear the component store on reloading (#5682)

* Dismiss presented modals and clear the component store on reload

* Detach all overlays on react reload

* Move synchronous dismissing modals to modalManager

* Fix iOS unit tests

lib/ios/RNNBridgeManager.m

@@ -15,6 +15,8 @@
 @property (nonatomic, strong, readwrite) RCTBridge *bridge;
 @property (nonatomic, strong, readwrite) RNNExternalComponentStore *store;
 @property (nonatomic, strong, readwrite) RNNReactComponentRegistry *componentRegistry;
+@property (nonatomic, strong, readonly) RNNOverlayManager *overlayManager;
+@property (nonatomic, strong, readonly) RNNModalManager *modalManager;
 
 @end
 
@@ -37,6 +39,9 @@
 		_launchOptions = launchOptions;
 		_delegate = delegate;
 		
+		_overlayManager = [RNNOverlayManager new];
+		_modalManager = [RNNModalManager new];
+		
 		_store = [RNNExternalComponentStore new];
 		_bridge = [[RCTBridge alloc] initWithDelegate:self launchOptions:_launchOptions];
 		
@@ -85,8 +90,8 @@
 	id<RNNComponentViewCreator> rootViewCreator = [[RNNReactRootViewCreator alloc] initWithBridge:bridge];
 	_componentRegistry = [[RNNReactComponentRegistry alloc] initWithCreator:rootViewCreator];
 	RNNControllerFactory *controllerFactory = [[RNNControllerFactory alloc] initWithRootViewCreator:rootViewCreator eventEmitter:eventEmitter store:_store componentRegistry:_componentRegistry andBridge:bridge];
-	
-	_commandsHandler = [[RNNCommandsHandler alloc] initWithControllerFactory:controllerFactory eventEmitter:eventEmitter stackManager:[RNNNavigationStackManager new] modalManager:[RNNModalManager new] overlayManager:[RNNOverlayManager new] mainWindow:_mainWindow];
+
+	_commandsHandler = [[RNNCommandsHandler alloc] initWithControllerFactory:controllerFactory eventEmitter:eventEmitter stackManager:[RNNNavigationStackManager new] modalManager:_modalManager overlayManager:_overlayManager mainWindow:_mainWindow];
 	RNNBridgeModule *bridgeModule = [[RNNBridgeModule alloc] initWithCommandsHandler:_commandsHandler];
 
 	return [@[bridgeModule,eventEmitter] arrayByAddingObjectsFromArray:[self extraModulesFromDelegate]];
@@ -104,7 +109,10 @@
 }
 
 - (void)onBridgeWillReload {
-	UIApplication.sharedApplication.delegate.window.rootViewController =  nil;
+	[_overlayManager dismissAllOverlays];
+	[_modalManager dismissAllModalsSynchronosly];
+	[_componentRegistry clear];
+	UIApplication.sharedApplication.delegate.window.rootViewController = nil;
 }
 
 @end

lib/ios/RNNCommandsHandler.m

@@ -69,7 +69,7 @@ static NSString* const setDefaultOptions	= @"setDefaultOptions";
 		}
 	}
 	
-	[_modalManager dismissAllModalsAnimated:NO];
+	[_modalManager dismissAllModalsAnimated:NO completion:nil];
 	
 	UIViewController *vc = [_controllerFactory createLayout:layout[@"root"]];
 	
@@ -291,7 +291,7 @@ static NSString* const setDefaultOptions	= @"setDefaultOptions";
 		completion();
 	}];
 	RNNNavigationOptions* options = [[RNNNavigationOptions alloc] initWithDict:mergeOptions];
-	[_modalManager dismissAllModalsAnimated:[options.animations.dismissModal.enable getWithDefaultValue:YES]];
+	[_modalManager dismissAllModalsAnimated:[options.animations.dismissModal.enable getWithDefaultValue:YES] completion:nil];
 	
 	[CATransaction commit];
 }

lib/ios/RNNModalManager.h

@@ -19,6 +19,7 @@ typedef void (^RNNTransitionRejectionBlock)(NSString *code, NSString *message, N
 - (void)showModal:(UIViewController *)viewController animated:(BOOL)animated completion:(RNNTransitionWithComponentIdCompletionBlock)completion;
 - (void)showModal:(UIViewController *)viewController animated:(BOOL)animated hasCustomAnimation:(BOOL)hasCustomAnimation completion:(RNNTransitionWithComponentIdCompletionBlock)completion;
 - (void)dismissModal:(UIViewController *)viewController completion:(RNNTransitionCompletionBlock)completion;
-- (void)dismissAllModalsAnimated:(BOOL)animated;
+- (void)dismissAllModalsAnimated:(BOOL)animated completion:(void (^ __nullable)(void))completion;
+- (void)dismissAllModalsSynchronosly;
 
 @end

lib/ios/RNNModalManager.m

@@ -54,14 +54,27 @@
 	}
 }
 
--(void)dismissAllModalsAnimated:(BOOL)animated {
+- (void)dismissAllModalsAnimated:(BOOL)animated completion:(void (^ __nullable)(void))completion {
 	UIViewController *root = UIApplication.sharedApplication.delegate.window.rootViewController;
-	[root dismissViewControllerAnimated:animated completion:nil];
+	[root dismissViewControllerAnimated:animated completion:completion];
 	[_delegate dismissedMultipleModals:_presentedModals];
 	[_pendingModalIdsToDismiss removeAllObjects];
 	[_presentedModals removeAllObjects];
 }
 
+- (void)dismissAllModalsSynchronosly {
+	if (_presentedModals.count) {
+		dispatch_semaphore_t sem = dispatch_semaphore_create(0);
+		[self dismissAllModalsAnimated:NO completion:^{
+			dispatch_semaphore_signal(sem);
+		}];
+		
+		while (dispatch_semaphore_wait(sem, DISPATCH_TIME_NOW)) {
+			[[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0]];
+		}
+	}
+}
+
 #pragma mark - private
 
 

lib/ios/RNNOverlayManager.h

@@ -7,6 +7,7 @@
 - (void)showOverlayWindow:(UIWindow*)viewController;
 - (void)showOverlayWindowAsKeyWindow:(UIWindow *)overlayWindow;
 - (void)dismissOverlay:(UIViewController*)viewController;
+- (void)dismissAllOverlays;
 
 @property (nonatomic, retain) NSMutableArray* overlayWindows;
 

lib/ios/RNNOverlayManager.m

@@ -26,13 +26,19 @@
 
 - (void)dismissOverlay:(UIViewController*)viewController {
 	RNNOverlayWindow* overlayWindow = [self findWindowByRootViewController:viewController];
-	[overlayWindow.previousWindow makeKeyWindow];
 	[self detachOverlayWindow:overlayWindow];
 }
 
+- (void)dismissAllOverlays {
+    for (RNNOverlayWindow* overlayWindow  in _overlayWindows) {
+        [self detachOverlayWindow:overlayWindow];
+    }
+}
+
 #pragma mark - private
 
-- (void)detachOverlayWindow:(UIWindow *)overlayWindow {
+- (void)detachOverlayWindow:(RNNOverlayWindow *)overlayWindow {
+    [overlayWindow.previousWindow makeKeyWindow];
 	[overlayWindow setHidden:YES];
 	[overlayWindow setRootViewController:nil];
 	[_overlayWindows removeObject:overlayWindow];

lib/ios/ReactNativeNavigationTests/RNNModalManagerTest.m

@@ -51,7 +51,7 @@
 	[_modalManager showModal:_vc3 animated:NO completion:nil];
 	
 	_modalManager.delegate = self;
-	[_modalManager dismissAllModalsAnimated:NO];
+	[_modalManager dismissAllModalsAnimated:NO completion:nil];
 	
 	XCTAssertTrue(_modalDismissedCount == 3);
 }
@@ -87,7 +87,7 @@
 	[_modalManager dismissModal:_vc2 completion:nil];
 	
 	XCTAssertTrue(_modalDismissedCount == 1);
-	[_modalManager dismissAllModalsAnimated:NO];
+	[_modalManager dismissAllModalsAnimated:NO completion:nil];
 	XCTAssertTrue(_modalDismissedCount == 2);
 }