#import "RNNRootViewController.h" #import #import "RNNAnimator.h" #import "RNNCustomTitleView.h" #import "RNNPushAnimation.h" #import "RNNReactView.h" #import "RNNParentProtocol.h" @interface RNNRootViewController() { RNNReactView* _customTitleView; UIView* _customTopBar; UIView* _customTopBarBackground; BOOL _isBeingPresented; } @property (nonatomic, copy) RNNReactViewReadyCompletionBlock reactViewReadyBlock; @end @implementation RNNRootViewController @synthesize previewCallback; - (instancetype)initWithLayoutInfo:(RNNLayoutInfo *)layoutInfo rootViewCreator:(id)creator eventEmitter:(RNNEventEmitter *)eventEmitter presenter:(RNNViewControllerPresenter *)presenter options:(RNNNavigationOptions *)options { self = [super init]; self.eventEmitter = eventEmitter; self.creator = creator; self.layoutInfo = layoutInfo; self.presenter = presenter; self.options = options; self.animator = [[RNNAnimator alloc] initWithTransitionOptions:self.options.customTransition]; if (self.creator) { self.view = [creator createRootView:self.layoutInfo.name rootViewId:self.layoutInfo.componentId]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(reactViewReady) name: @"RCTContentDidAppearNotification" object:nil]; } [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onJsReload) name:RCTJavaScriptWillStartLoadingNotification object:nil]; self.navigationController.delegate = self; return self; } - (instancetype)initExternalComponentWithLayoutInfo:(RNNLayoutInfo *)layoutInfo eventEmitter:(RNNEventEmitter *)eventEmitter presenter:(RNNViewControllerPresenter *)presenter options:(RNNNavigationOptions *)options { self = [self initWithLayoutInfo:layoutInfo rootViewCreator:nil eventEmitter:eventEmitter presenter:presenter options:options]; return self; } - (void)bindViewController:(UIViewController *)viewController { [self addChildViewController:viewController]; [self.view addSubview:viewController.view]; [viewController didMoveToParentViewController:self]; } -(void)viewWillAppear:(BOOL)animated{ [super viewWillAppear:animated]; _isBeingPresented = YES; [_presenter present:self.options onViewControllerWillAppear:self]; [self initReactCustomViews]; } -(void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; [self.eventEmitter sendComponentDidAppear:self.layoutInfo.componentId componentName:self.layoutInfo.name]; } - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; _isBeingPresented = NO; } -(void)viewDidDisappear:(BOOL)animated { [super viewDidDisappear:animated]; [self.eventEmitter sendComponentDidDisappear:self.layoutInfo.componentId componentName:self.layoutInfo.name]; } - (void)willMoveToParentViewController:(UIViewController *)parent { [_presenter present:self.options onViewControllerDidLoad:self]; } - (void)mergeOptions:(RNNNavigationOptions *)options { [self.options mergeOptions:options overrideOptions:YES]; [self.presenter present:self.options onViewControllerWillAppear:self]; [self initReactCustomViews]; } - (void)reactViewReady { if (_reactViewReadyBlock) { _reactViewReadyBlock(); _reactViewReadyBlock = nil; } [[NSNotificationCenter defaultCenter] removeObserver:self name:@"RCTContentDidAppearNotification" object:nil]; } - (void)waitForReactViewRender:(BOOL)wait perform:(RNNReactViewReadyCompletionBlock)readyBlock { if (wait && !self.isExternalViewController) { [self onReactViewReady:readyBlock]; } else { readyBlock(); } } - (UIViewController *)getLeafViewController { return self; } - (void)onReactViewReady:(RNNReactViewReadyCompletionBlock)readyBlock { if (self.isExternalViewController) { readyBlock(); } else { self.reactViewReadyBlock = readyBlock; } } -(void)updateSearchResultsForSearchController:(UISearchController *)searchController { [self.eventEmitter sendOnSearchBarUpdated:self.layoutInfo.componentId text:searchController.searchBar.text isFocused:searchController.searchBar.isFirstResponder]; } - (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar { [self.eventEmitter sendOnSearchBarCancelPressed:self.layoutInfo.componentId]; } - (void)initReactCustomViews { [self setCustomNavigationTitleView]; [self setCustomNavigationBarView]; [self setCustomNavigationComponentBackground]; } - (void)setCustomNavigationTitleView { if (!_customTitleView && _isBeingPresented) { if (self.options.topBar.title.component.name) { _customTitleView = (RNNReactView*)[_creator createRootViewFromComponentOptions:self.options.topBar.title.component]; _customTitleView.backgroundColor = UIColor.clearColor; [_customTitleView setAlignment:self.options.topBar.title.component.alignment]; BOOL isCenter = [self.options.topBar.title.component.alignment isEqualToString:@"center"]; __weak RNNReactView *weakTitleView = _customTitleView; CGRect frame = self.navigationController.navigationBar.bounds; [_customTitleView setFrame:frame]; [_customTitleView setRootViewDidChangeIntrinsicSize:^(CGSize intrinsicContentSize) { if (isCenter) { [weakTitleView setFrame:CGRectMake(0, 0, intrinsicContentSize.width, intrinsicContentSize.height)]; } else { [weakTitleView setFrame:frame]; } }]; self.navigationItem.titleView = _customTitleView; } } else if (_customTitleView && _customTitleView.superview == nil) { if ([self.navigationItem.title isKindOfClass:[RNNCustomTitleView class]] && !_customTitleView) { self.navigationItem.title = nil; } self.navigationItem.titleView = _customTitleView; } } - (void)setCustomNavigationBarView { if (!_customTopBar) { if (self.options.topBar.component.name) { RCTRootView *reactView = (RCTRootView*)[_creator createRootViewFromComponentOptions:self.options.topBar.component]; _customTopBar = [[RNNCustomTitleView alloc] initWithFrame:self.navigationController.navigationBar.bounds subView:reactView alignment:@"fill"]; reactView.backgroundColor = UIColor.clearColor; _customTopBar.backgroundColor = UIColor.clearColor; [self.navigationController.navigationBar addSubview:_customTopBar]; } else if ([[self.navigationController.navigationBar.subviews lastObject] isKindOfClass:[RNNCustomTitleView class]] && !_customTopBar) { [[self.navigationController.navigationBar.subviews lastObject] removeFromSuperview]; } } else if (_customTopBar && _customTopBar.superview == nil) { if ([[self.navigationController.navigationBar.subviews lastObject] isKindOfClass:[RNNCustomTitleView class]] && !_customTopBar) { [[self.navigationController.navigationBar.subviews lastObject] removeFromSuperview]; } [self.navigationController.navigationBar addSubview:_customTopBar]; } } - (void)setCustomNavigationComponentBackground { if (!_customTopBarBackground) { if (self.options.topBar.background.component.name) { RCTRootView *reactView = (RCTRootView*)[_creator createRootViewFromComponentOptions:self.options.topBar.background.component]; _customTopBarBackground = [[RNNCustomTitleView alloc] initWithFrame:self.navigationController.navigationBar.bounds subView:reactView alignment:@"fill"]; [self.navigationController.navigationBar insertSubview:_customTopBarBackground atIndex:1]; } else if (self.navigationController.navigationBar.subviews.count && [[self.navigationController.navigationBar.subviews objectAtIndex:1] isKindOfClass:[RNNCustomTitleView class]]) { [[self.navigationController.navigationBar.subviews objectAtIndex:1] removeFromSuperview]; } } if (_customTopBarBackground && _customTopBarBackground.superview == nil) { if (self.navigationController.navigationBar.subviews.count && [[self.navigationController.navigationBar.subviews objectAtIndex:1] isKindOfClass:[RNNCustomTitleView class]]) { [[self.navigationController.navigationBar.subviews objectAtIndex:1] removeFromSuperview]; } [self.navigationController.navigationBar insertSubview:_customTopBarBackground atIndex:1]; self.navigationController.navigationBar.clipsToBounds = YES; } } -(BOOL)isCustomTransitioned { return self.options.customTransition.animations != nil; } - (BOOL)isExternalViewController { return !self.creator; } - (BOOL)prefersStatusBarHidden { if (self.options.statusBar.visible) { return ![self.options.statusBar.visible boolValue]; } else if ([self.options.statusBar.hideWithTopBar boolValue]) { return self.navigationController.isNavigationBarHidden; } return NO; } - (UIStatusBarStyle)preferredStatusBarStyle { if (self.options.statusBar.style && [self.options.statusBar.style isEqualToString:@"light"]) { return UIStatusBarStyleLightContent; } else { return UIStatusBarStyleDefault; } } - (UIInterfaceOrientationMask)supportedInterfaceOrientations { return self.options.layout.supportedOrientations; } - (BOOL)hidesBottomBarWhenPushed { if (self.options.bottomTabs && self.options.bottomTabs.visible) { return ![self.options.bottomTabs.visible boolValue]; } return NO; } - (void)navigationController:(UINavigationController *)navigationController didShowViewController:(UIViewController *)viewController animated:(BOOL)animated{ RNNRootViewController* vc = (RNNRootViewController*)viewController; if (![vc.options.topBar.backButton.transition isEqualToString:@"custom"]){ navigationController.delegate = nil; } } - (id)navigationController:(UINavigationController *)navigationController animationControllerForOperation:(UINavigationControllerOperation)operation fromViewController:(UIViewController*)fromVC toViewController:(UIViewController*)toVC { if (self.animator) { return self.animator; } else if (operation == UINavigationControllerOperationPush && self.options.animations.push.hasCustomAnimation) { return [[RNNPushAnimation alloc] initWithScreenTransition:self.options.animations.push]; } else if (operation == UINavigationControllerOperationPop && self.options.animations.pop.hasCustomAnimation) { return [[RNNPushAnimation alloc] initWithScreenTransition:self.options.animations.pop]; } else { return nil; } return nil; } - (nullable id )animationControllerForPresentedController:(UIViewController *)presented presentingController:(UIViewController *)presenting sourceController:(UIViewController *)source { return [[RNNModalAnimation alloc] initWithScreenTransition:self.options.animations.showModal isDismiss:NO]; } - (id)animationControllerForDismissedController:(UIViewController *)dismissed { return [[RNNModalAnimation alloc] initWithScreenTransition:self.options.animations.dismissModal isDismiss:YES]; } - (UIViewController *)previewingContext:(id)previewingContext viewControllerForLocation:(CGPoint)location{ return self.previewController; } - (void)previewingContext:(id)previewingContext commitViewController:(UIViewController *)viewControllerToCommit { if (self.previewCallback) { self.previewCallback(self); } } - (void)onActionPress:(NSString *)id { [_eventEmitter sendOnNavigationButtonPressed:self.layoutInfo.componentId buttonId:id]; } - (UIPreviewAction *) convertAction:(NSDictionary *)action { NSString *actionId = action[@"id"]; NSString *actionTitle = action[@"title"]; UIPreviewActionStyle actionStyle = UIPreviewActionStyleDefault; if ([action[@"style"] isEqualToString:@"selected"]) { actionStyle = UIPreviewActionStyleSelected; } else if ([action[@"style"] isEqualToString:@"destructive"]) { actionStyle = UIPreviewActionStyleDestructive; } return [UIPreviewAction actionWithTitle:actionTitle style:actionStyle handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) { [self onActionPress:actionId]; }]; } - (NSArray> *)previewActionItems { NSMutableArray *actions = [[NSMutableArray alloc] init]; for (NSDictionary *previewAction in self.options.preview.actions) { UIPreviewAction *action = [self convertAction:previewAction]; NSDictionary *actionActions = previewAction[@"actions"]; if (actionActions.count > 0) { NSMutableArray *group = [[NSMutableArray alloc] init]; for (NSDictionary *previewGroupAction in actionActions) { [group addObject:[self convertAction:previewGroupAction]]; } UIPreviewActionGroup *actionGroup = [UIPreviewActionGroup actionGroupWithTitle:action.title style:UIPreviewActionStyleDefault actions:group]; [actions addObject:actionGroup]; } else { [actions addObject:action]; } } return actions; } -(void)onButtonPress:(RNNUIBarButtonItem *)barButtonItem { [self.eventEmitter sendOnNavigationButtonPressed:self.layoutInfo.componentId buttonId:barButtonItem.buttonId]; } /** * fix for #877, #878 */ -(void)onJsReload { [self cleanReactLeftovers]; } /** * fix for #880 */ -(void)dealloc { [self cleanReactLeftovers]; } -(void)cleanReactLeftovers { [[NSNotificationCenter defaultCenter] removeObserver:self]; [[NSNotificationCenter defaultCenter] removeObserver:self.view]; self.view = nil; self.navigationItem.titleView = nil; self.navigationItem.rightBarButtonItems = nil; self.navigationItem.leftBarButtonItems = nil; _customTopBar = nil; _customTitleView = nil; _customTopBarBackground = nil; } @end