1097 lines
41 KiB
Plaintext
1097 lines
41 KiB
Plaintext
#ifdef RCT_NEW_ARCH_ENABLED
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#import <React/RCTFabricComponentsPlugins.h>
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#import <React/RCTMountingTransactionObserving.h>
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#import <React/RCTSurfaceTouchHandler.h>
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#import <React/UIView+React.h>
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#import <react/renderer/components/rnscreens/ComponentDescriptors.h>
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#import <react/renderer/components/rnscreens/EventEmitters.h>
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#import <react/renderer/components/rnscreens/Props.h>
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#import <react/renderer/components/rnscreens/RCTComponentViewHelpers.h>
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#else
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#import <React/RCTBridge.h>
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#import <React/RCTRootContentView.h>
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#import <React/RCTShadowView.h>
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#import <React/RCTTouchHandler.h>
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#import <React/RCTUIManager.h>
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#import <React/RCTUIManagerUtils.h>
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#endif // RCT_NEW_ARCH_ENABLED
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#import "RNSScreen.h"
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#import "RNSScreenStack.h"
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#import "RNSScreenStackAnimator.h"
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#import "RNSScreenStackHeaderConfig.h"
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#import "RNSScreenWindowTraits.h"
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#ifdef RCT_NEW_ARCH_ENABLED
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namespace react = facebook::react;
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#endif // RCT_NEW_ARCH_ENABLED
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@interface RNSScreenStackView () <
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UINavigationControllerDelegate,
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UIAdaptivePresentationControllerDelegate,
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UIGestureRecognizerDelegate,
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UIViewControllerTransitioningDelegate
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#ifdef RCT_NEW_ARCH_ENABLED
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,
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RCTMountingTransactionObserving
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#endif
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>
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@property (nonatomic) NSMutableArray<UIViewController *> *presentedModals;
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@property (nonatomic) BOOL updatingModals;
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@property (nonatomic) BOOL scheduleModalsUpdate;
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@end
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@implementation RNSNavigationController
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#if !TARGET_OS_TV
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- (UIViewController *)childViewControllerForStatusBarStyle
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{
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return [self topViewController];
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}
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- (UIStatusBarAnimation)preferredStatusBarUpdateAnimation
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{
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return [self topViewController].preferredStatusBarUpdateAnimation;
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}
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- (UIViewController *)childViewControllerForStatusBarHidden
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{
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return [self topViewController];
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}
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- (UIInterfaceOrientationMask)supportedInterfaceOrientations
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{
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return [self topViewController].supportedInterfaceOrientations;
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}
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- (UIViewController *)childViewControllerForHomeIndicatorAutoHidden
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{
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return [self topViewController];
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}
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#endif
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@end
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#if !TARGET_OS_TV
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@interface RNSScreenEdgeGestureRecognizer : UIScreenEdgePanGestureRecognizer
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@end
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@implementation RNSScreenEdgeGestureRecognizer
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@end
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@interface RNSPanGestureRecognizer : UIPanGestureRecognizer
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@end
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@implementation RNSPanGestureRecognizer
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@end
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#endif
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@implementation RNSScreenStackView {
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UINavigationController *_controller;
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NSMutableArray<RNSScreenView *> *_reactSubviews;
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BOOL _invalidated;
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BOOL _isFullWidthSwiping;
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UIPercentDrivenInteractiveTransition *_interactionController;
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BOOL _hasLayout;
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__weak RNSScreenStackManager *_manager;
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BOOL _updateScheduled;
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#ifdef RCT_NEW_ARCH_ENABLED
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UIView *_snapshot;
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#endif
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}
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#ifdef RCT_NEW_ARCH_ENABLED
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- (instancetype)initWithFrame:(CGRect)frame
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{
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if (self = [super initWithFrame:frame]) {
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static const auto defaultProps = std::make_shared<const react::RNSScreenStackProps>();
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_props = defaultProps;
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[self initCommonProps];
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}
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return self;
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}
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#endif // RCT_NEW_ARCH_ENABLED
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- (instancetype)initWithManager:(RNSScreenStackManager *)manager
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{
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if (self = [super init]) {
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_hasLayout = NO;
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_invalidated = NO;
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_manager = manager;
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[self initCommonProps];
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}
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return self;
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}
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- (void)initCommonProps
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{
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_reactSubviews = [NSMutableArray new];
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_presentedModals = [NSMutableArray new];
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_controller = [RNSNavigationController new];
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_controller.delegate = self;
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#if !TARGET_OS_TV
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[self setupGestureHandlers];
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#endif
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// we have to initialize viewControllers with a non empty array for
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// largeTitle header to render in the opened state. If it is empty
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// the header will render in collapsed state which is perhaps a bug
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// in UIKit but ¯\_(ツ)_/¯
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[_controller setViewControllers:@[ [UIViewController new] ]];
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}
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#pragma mark - helper methods
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- (BOOL)shouldCancelDismissFromView:(RNSScreenView *)fromView toView:(RNSScreenView *)toView
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{
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int fromIndex = (int)[_reactSubviews indexOfObject:fromView];
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int toIndex = (int)[_reactSubviews indexOfObject:toView];
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for (int i = fromIndex; i > toIndex; i--) {
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if (_reactSubviews[i].preventNativeDismiss) {
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return YES;
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break;
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}
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}
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return NO;
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}
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#pragma mark - Common
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- (void)emitOnFinishTransitioningEvent
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{
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#ifdef RCT_NEW_ARCH_ENABLED
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if (_eventEmitter != nullptr) {
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std::dynamic_pointer_cast<const react::RNSScreenStackEventEmitter>(_eventEmitter)
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->onFinishTransitioning(react::RNSScreenStackEventEmitter::OnFinishTransitioning{});
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}
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#else
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if (self.onFinishTransitioning) {
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self.onFinishTransitioning(nil);
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}
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#endif
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}
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- (void)navigationController:(UINavigationController *)navigationController
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willShowViewController:(UIViewController *)viewController
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animated:(BOOL)animated
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{
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UIView *view = viewController.view;
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#ifdef RCT_NEW_ARCH_ENABLED
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if (![view isKindOfClass:[RNSScreenView class]]) {
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// if the current view is a snapshot, config was already removed so we don't trigger the method
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return;
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}
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#endif
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RNSScreenStackHeaderConfig *config = nil;
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for (UIView *subview in view.reactSubviews) {
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if ([subview isKindOfClass:[RNSScreenStackHeaderConfig class]]) {
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config = (RNSScreenStackHeaderConfig *)subview;
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break;
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}
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}
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[RNSScreenStackHeaderConfig willShowViewController:viewController animated:animated withConfig:config];
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}
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- (void)presentationControllerDidDismiss:(UIPresentationController *)presentationController
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{
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// We don't directly set presentation delegate but instead rely on the ScreenView's delegate to
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// forward certain calls to the container (Stack).
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if ([presentationController.presentedViewController isKindOfClass:[RNSScreen class]]) {
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// we trigger the update of status bar's appearance here because there is no other lifecycle method
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// that can handle it when dismissing a modal, the same for orientation
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[RNSScreenWindowTraits updateWindowTraits];
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[_presentedModals removeObject:presentationController.presentedViewController];
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_updatingModals = NO;
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#ifdef RCT_NEW_ARCH_ENABLED
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[self emitOnFinishTransitioningEvent];
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#else
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// we double check if there are no new controllers pending to be presented since someone could
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// have tried to push another one during the transition.
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// We don't do it on Fabric since update of container will be triggered from "unmount" method afterwards
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[self updateContainer];
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if (self.onFinishTransitioning) {
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// instead of directly triggering onFinishTransitioning this time we enqueue the event on the
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// main queue. We do that because onDismiss event is also enqueued and we want for the transition
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// finish event to arrive later than onDismiss (see RNSScreen#notifyDismiss)
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dispatch_async(dispatch_get_main_queue(), ^{
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[self emitOnFinishTransitioningEvent];
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});
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}
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#endif
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}
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}
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- (NSArray<UIView *> *)reactSubviews
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{
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return _reactSubviews;
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}
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- (void)didMoveToWindow
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{
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[super didMoveToWindow];
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#ifdef RCT_NEW_ARCH_ENABLED
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// for handling nested stacks
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[self maybeAddToParentAndUpdateContainer];
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#else
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if (!_invalidated) {
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// We check whether the view has been invalidated before running side-effects in didMoveToWindow
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// This is needed because when LayoutAnimations are used it is possible for view to be re-attached
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// to a window despite the fact it has been removed from the React Native view hierarchy.
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[self maybeAddToParentAndUpdateContainer];
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}
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#endif
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}
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- (void)maybeAddToParentAndUpdateContainer
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{
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BOOL wasScreenMounted = _controller.parentViewController != nil;
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#ifdef RCT_NEW_ARCH_ENABLED
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BOOL isScreenReadyForShowing = self.window;
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#else
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BOOL isScreenReadyForShowing = self.window && _hasLayout;
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#endif
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if (!isScreenReadyForShowing && !wasScreenMounted) {
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// We wait with adding to parent controller until the stack is mounted and has its initial
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// layout done.
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// If we add it before layout, some of the items (specifically items from the navigation bar),
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// won't be able to position properly. Also the position and size of such items, even if it
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// happens to change, won't be properly updated (this is perhaps some internal issue of UIKit).
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// If we add it when window is not attached, some of the view transitions will be bloced (i.e.
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// modal transitions) and the internal view controler's state will get out of sync with what's
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// on screen without us knowing.
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return;
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}
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[self updateContainer];
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if (!wasScreenMounted) {
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// when stack hasn't been added to parent VC yet we do two things:
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// 1) we run updateContainer (the one above) – we do this because we want push view controllers to
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// be installed before the VC is mounted. If we do that after it is added to parent the push
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// updates operations are going to be blocked by UIKit.
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// 2) we add navigation VS to parent – this is needed for the VC lifecycle events to be dispatched
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// properly
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// 3) we again call updateContainer – this time we do this to open modal controllers. Modals
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// won't open in (1) because they require navigator to be added to parent. We handle that case
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// gracefully in setModalViewControllers and can retry opening at any point.
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[self reactAddControllerToClosestParent:_controller];
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[self updateContainer];
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}
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}
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- (void)reactAddControllerToClosestParent:(UIViewController *)controller
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{
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if (!controller.parentViewController) {
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UIView *parentView = (UIView *)self.reactSuperview;
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while (parentView) {
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if (parentView.reactViewController) {
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[parentView.reactViewController addChildViewController:controller];
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[self addSubview:controller.view];
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#if !TARGET_OS_TV
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_controller.interactivePopGestureRecognizer.delegate = self;
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#endif
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[controller didMoveToParentViewController:parentView.reactViewController];
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// On iOS pre 12 we observed that `willShowViewController` delegate method does not always
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// get triggered when the navigation controller is instantiated. As the only thing we do in
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// that delegate method is ask nav header to update to the current state it does not hurt to
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// trigger that logic from here too such that we can be sure the header is properly updated.
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[self navigationController:_controller willShowViewController:_controller.topViewController animated:NO];
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break;
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}
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parentView = (UIView *)parentView.reactSuperview;
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}
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return;
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}
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}
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- (void)setModalViewControllers:(NSArray<UIViewController *> *)controllers
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{
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// prevent re-entry
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if (_updatingModals) {
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_scheduleModalsUpdate = YES;
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return;
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}
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// when there is no change we return immediately. This check is important because sometime we may
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// accidently trigger modal dismiss if we don't verify to run the below code only when an actual
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// change in the list of presented modal was made.
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if ([_presentedModals isEqualToArray:controllers]) {
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return;
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}
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// if view controller is not yet attached to window we skip updates now and run them when view
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// is attached
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if (self.window == nil && _presentedModals.lastObject.view.window == nil) {
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return;
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}
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_updatingModals = YES;
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NSMutableArray<UIViewController *> *newControllers = [NSMutableArray arrayWithArray:controllers];
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[newControllers removeObjectsInArray:_presentedModals];
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// find bottom-most controller that should stay on the stack for the duration of transition
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NSUInteger changeRootIndex = 0;
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UIViewController *changeRootController = _controller;
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for (NSUInteger i = 0; i < MIN(_presentedModals.count, controllers.count); i++) {
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if (_presentedModals[i] == controllers[i]) {
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changeRootController = controllers[i];
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changeRootIndex = i + 1;
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} else {
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break;
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}
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}
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// we verify that controllers added on top of changeRootIndex are all new. Unfortunately modal
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// VCs cannot be reshuffled (there are some visual glitches when we try to dismiss then show as
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// even non-animated dismissal has delay and updates the screen several times)
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for (NSUInteger i = changeRootIndex; i < controllers.count; i++) {
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if ([_presentedModals containsObject:controllers[i]]) {
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RCTAssert(false, @"Modally presented controllers are being reshuffled, this is not allowed");
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}
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}
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__weak RNSScreenStackView *weakSelf = self;
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void (^afterTransitions)(void) = ^{
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[weakSelf emitOnFinishTransitioningEvent];
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weakSelf.updatingModals = NO;
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if (weakSelf.scheduleModalsUpdate) {
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// if modals update was requested during setModalViewControllers we set scheduleModalsUpdate
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// flag in order to perform updates at a later point. Here we are done with all modals
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// transitions and check this flag again. If it was set, we reset the flag and execute updates.
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weakSelf.scheduleModalsUpdate = NO;
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[weakSelf updateContainer];
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}
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// we trigger the update of orientation here because, when dismissing the modal from JS,
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// neither `viewWillAppear` nor `presentationControllerDidDismiss` are called, same for status bar.
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[RNSScreenWindowTraits updateWindowTraits];
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};
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void (^finish)(void) = ^{
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NSUInteger oldCount = weakSelf.presentedModals.count;
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if (changeRootIndex < oldCount) {
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[weakSelf.presentedModals removeObjectsInRange:NSMakeRange(changeRootIndex, oldCount - changeRootIndex)];
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}
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BOOL isAttached =
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changeRootController.parentViewController != nil || changeRootController.presentingViewController != nil;
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if (!isAttached || changeRootIndex >= controllers.count) {
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// if change controller view is not attached, presenting modals will silently fail on iOS.
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// In such a case we trigger controllers update from didMoveToWindow.
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// We also don't run any present transitions if changeRootIndex is greater or equal to the size
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// of new controllers array. This means that no new controllers should be presented.
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afterTransitions();
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return;
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} else {
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UIViewController *previous = changeRootController;
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for (NSUInteger i = changeRootIndex; i < controllers.count; i++) {
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UIViewController *next = controllers[i];
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BOOL lastModal = (i == controllers.count - 1);
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#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && defined(__IPHONE_13_0) && \
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__IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_13_0
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if (@available(iOS 13.0, tvOS 13.0, *)) {
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// Inherit UI style from its parent - solves an issue with incorrect style being applied to some UIKit views
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// like date picker or segmented control.
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next.overrideUserInterfaceStyle = self->_controller.overrideUserInterfaceStyle;
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}
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#endif
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BOOL shouldAnimate = lastModal && [next isKindOfClass:[RNSScreen class]] &&
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((RNSScreen *)next).screenView.stackAnimation != RNSScreenStackAnimationNone;
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// if you want to present another modal quick enough after dismissing the previous one,
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// it will result in wrong changeRootController, see repro in
|
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// https://github.com/software-mansion/react-native-screens/issues/1299 We call `updateContainer` again in
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// `presentationControllerDidDismiss` to cover this case and present new controller
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if (previous.beingDismissed) {
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return;
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}
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[previous presentViewController:next
|
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animated:shouldAnimate
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completion:^{
|
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[weakSelf.presentedModals addObject:next];
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if (lastModal) {
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afterTransitions();
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};
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}];
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previous = next;
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}
|
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}
|
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};
|
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if (changeRootController.presentedViewController != nil &&
|
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[_presentedModals containsObject:changeRootController.presentedViewController]) {
|
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BOOL shouldAnimate = changeRootIndex == controllers.count &&
|
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[changeRootController.presentedViewController isKindOfClass:[RNSScreen class]] &&
|
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((RNSScreen *)changeRootController.presentedViewController).screenView.stackAnimation !=
|
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RNSScreenStackAnimationNone;
|
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[changeRootController dismissViewControllerAnimated:shouldAnimate completion:finish];
|
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} else {
|
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finish();
|
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}
|
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}
|
||
|
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- (void)setPushViewControllers:(NSArray<UIViewController *> *)controllers
|
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{
|
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// when there is no change we return immediately
|
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if ([_controller.viewControllers isEqualToArray:controllers]) {
|
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return;
|
||
}
|
||
|
||
// if view controller is not yet attached to window we skip updates now and run them when view
|
||
// is attached
|
||
if (self.window == nil) {
|
||
return;
|
||
}
|
||
// when transition is ongoing, any updates made to the controller will not be reflected until the
|
||
// transition is complete. In particular, when we push/pop view controllers we expect viewControllers
|
||
// property to be updated immediately. Based on that property we then calculate future updates.
|
||
// When the transition is ongoing the property won't be updated immediatly. We therefore avoid
|
||
// making any updated when transition is ongoing and schedule updates for when the transition
|
||
// is complete.
|
||
if (_controller.transitionCoordinator != nil) {
|
||
if (!_updateScheduled) {
|
||
_updateScheduled = YES;
|
||
__weak RNSScreenStackView *weakSelf = self;
|
||
[_controller.transitionCoordinator
|
||
animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> _Nonnull context) {
|
||
// do nothing here, we only want to be notified when transition is complete
|
||
}
|
||
completion:^(id<UIViewControllerTransitionCoordinatorContext> _Nonnull context) {
|
||
self->_updateScheduled = NO;
|
||
[weakSelf updateContainer];
|
||
}];
|
||
}
|
||
return;
|
||
}
|
||
|
||
UIViewController *top = controllers.lastObject;
|
||
#ifdef RCT_NEW_ARCH_ENABLED
|
||
UIViewController *previousTop = _controller.topViewController;
|
||
#else
|
||
UIViewController *previousTop = _controller.viewControllers.lastObject;
|
||
#endif
|
||
|
||
// At the start we set viewControllers to contain a single UIViewController
|
||
// instance. This is a workaround for header height adjustment bug (see comment
|
||
// in the init function). Here, we need to detect if the initial empty
|
||
// controller is still there
|
||
BOOL firstTimePush = ![previousTop isKindOfClass:[RNSScreen class]];
|
||
|
||
if (firstTimePush) {
|
||
// nothing pushed yet
|
||
[_controller setViewControllers:controllers animated:NO];
|
||
} else if (top != previousTop) {
|
||
if (![controllers containsObject:previousTop]) {
|
||
// if the previous top screen does not exist anymore and the new top was not on the stack before, probably replace
|
||
// was called, so we check the animation
|
||
if (![_controller.viewControllers containsObject:top] &&
|
||
((RNSScreenView *)top.view).replaceAnimation == RNSScreenReplaceAnimationPush) {
|
||
// setting new controllers with animation does `push` animation by default
|
||
#ifdef RCT_NEW_ARCH_ENABLED
|
||
auto screenController = (RNSScreen *)top;
|
||
[screenController resetViewToScreen];
|
||
#endif
|
||
[_controller setViewControllers:controllers animated:YES];
|
||
} else {
|
||
// last top controller is no longer on stack
|
||
// in this case we set the controllers stack to the new list with
|
||
// added the last top element to it and perform (animated) pop
|
||
NSMutableArray *newControllers = [NSMutableArray arrayWithArray:controllers];
|
||
[newControllers addObject:previousTop];
|
||
[_controller setViewControllers:newControllers animated:NO];
|
||
[_controller popViewControllerAnimated:YES];
|
||
}
|
||
} else if (![_controller.viewControllers containsObject:top]) {
|
||
// new top controller is not on the stack
|
||
// in such case we update the stack except from the last element with
|
||
// no animation and do animated push of the last item
|
||
NSMutableArray *newControllers = [NSMutableArray arrayWithArray:controllers];
|
||
[newControllers removeLastObject];
|
||
[_controller setViewControllers:newControllers animated:NO];
|
||
#ifdef RCT_NEW_ARCH_ENABLED
|
||
auto screenController = (RNSScreen *)top;
|
||
[screenController resetViewToScreen];
|
||
#endif
|
||
[_controller pushViewController:top animated:YES];
|
||
} else {
|
||
// don't really know what this case could be, but may need to handle it
|
||
// somehow
|
||
[_controller setViewControllers:controllers animated:NO];
|
||
}
|
||
} else {
|
||
// change wasn't on the top of the stack. We don't need animation.
|
||
[_controller setViewControllers:controllers animated:NO];
|
||
}
|
||
}
|
||
|
||
- (void)updateContainer
|
||
{
|
||
NSMutableArray<UIViewController *> *pushControllers = [NSMutableArray new];
|
||
NSMutableArray<UIViewController *> *modalControllers = [NSMutableArray new];
|
||
for (RNSScreenView *screen in _reactSubviews) {
|
||
if (!screen.dismissed && screen.controller != nil) {
|
||
if (pushControllers.count == 0) {
|
||
// first screen on the list needs to be places as "push controller"
|
||
[pushControllers addObject:screen.controller];
|
||
} else {
|
||
if (screen.stackPresentation == RNSScreenStackPresentationPush) {
|
||
[pushControllers addObject:screen.controller];
|
||
} else {
|
||
[modalControllers addObject:screen.controller];
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
[self setPushViewControllers:pushControllers];
|
||
[self setModalViewControllers:modalControllers];
|
||
}
|
||
|
||
- (void)layoutSubviews
|
||
{
|
||
[super layoutSubviews];
|
||
_controller.view.frame = self.bounds;
|
||
}
|
||
|
||
- (void)dismissOnReload
|
||
{
|
||
#ifdef RCT_NEW_ARCH_ENABLED
|
||
if ([_controller.visibleViewController isKindOfClass:[RNSScreen class]]) {
|
||
[(RNSScreen *)_controller.visibleViewController resetViewToScreen];
|
||
}
|
||
#else
|
||
dispatch_async(dispatch_get_main_queue(), ^{
|
||
[self invalidate];
|
||
});
|
||
#endif
|
||
}
|
||
|
||
#pragma mark methods connected to transitioning
|
||
|
||
- (id<UIViewControllerAnimatedTransitioning>)navigationController:(UINavigationController *)navigationController
|
||
animationControllerForOperation:(UINavigationControllerOperation)operation
|
||
fromViewController:(UIViewController *)fromVC
|
||
toViewController:(UIViewController *)toVC
|
||
{
|
||
RNSScreenView *screen;
|
||
if (operation == UINavigationControllerOperationPush) {
|
||
screen = ((RNSScreen *)toVC).screenView;
|
||
} else if (operation == UINavigationControllerOperationPop) {
|
||
screen = ((RNSScreen *)fromVC).screenView;
|
||
}
|
||
BOOL shouldCancelDismiss = [self shouldCancelDismissFromView:(RNSScreenView *)fromVC.view
|
||
toView:(RNSScreenView *)toVC.view];
|
||
if (screen != nil &&
|
||
// when preventing the native dismiss with back button, we have to return the animator.
|
||
// Also, we need to return the animator when full width swiping even if the animation is not custom,
|
||
// otherwise the screen will be just popped immediately due to no animation
|
||
((operation == UINavigationControllerOperationPop && shouldCancelDismiss) || _isFullWidthSwiping ||
|
||
[RNSScreenStackAnimator isCustomAnimation:screen.stackAnimation])) {
|
||
return [[RNSScreenStackAnimator alloc] initWithOperation:operation];
|
||
}
|
||
return nil;
|
||
}
|
||
|
||
- (void)cancelTouchesInParent
|
||
{
|
||
// cancel touches in parent, this is needed to cancel RN touch events. For example when Touchable
|
||
// item is close to an edge and we start pulling from edge we want the Touchable to be cancelled.
|
||
// Without the below code the Touchable will remain active (highlighted) for the duration of back
|
||
// gesture and onPress may fire when we release the finger.
|
||
UIView *parent = _controller.view;
|
||
while (parent != nil && ![parent respondsToSelector:@selector(touchHandler)])
|
||
parent = parent.superview;
|
||
if (parent != nil) {
|
||
#ifdef RCT_NEW_ARCH_ENABLED
|
||
RCTSurfaceTouchHandler *touchHandler = [parent performSelector:@selector(touchHandler)];
|
||
#else
|
||
RCTTouchHandler *touchHandler = [parent performSelector:@selector(touchHandler)];
|
||
#endif
|
||
[touchHandler setEnabled:NO];
|
||
[touchHandler setEnabled:YES];
|
||
[touchHandler reset];
|
||
}
|
||
}
|
||
|
||
- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer
|
||
{
|
||
RNSScreenView *topScreen = _reactSubviews.lastObject;
|
||
|
||
#if TARGET_OS_TV
|
||
[self cancelTouchesInParent];
|
||
return YES;
|
||
#else
|
||
// RNSPanGestureRecognizer will receive events iff topScreen.fullScreenSwipeEnabled == YES;
|
||
// Events are filtered in gestureRecognizer:shouldReceivePressOrTouchEvent: method
|
||
if ([gestureRecognizer isKindOfClass:[RNSPanGestureRecognizer class]]) {
|
||
if ([self isInGestureResponseDistance:gestureRecognizer topScreen:topScreen]) {
|
||
_isFullWidthSwiping = YES;
|
||
[self cancelTouchesInParent];
|
||
return YES;
|
||
}
|
||
return NO;
|
||
}
|
||
|
||
// Now we're dealing with RNSScreenEdgeGestureRecognizer (or _UIParallaxTransitionPanGestureRecognizer)
|
||
if (topScreen.customAnimationOnSwipe && [RNSScreenStackAnimator isCustomAnimation:topScreen.stackAnimation]) {
|
||
if ([gestureRecognizer isKindOfClass:[RNSScreenEdgeGestureRecognizer class]]) {
|
||
// if we do not set any explicit `semanticContentAttribute`, it is `UISemanticContentAttributeUnspecified` instead
|
||
// of `UISemanticContentAttributeForceLeftToRight`, so we just check if it is RTL or not
|
||
BOOL isCorrectEdge = (_controller.view.semanticContentAttribute == UISemanticContentAttributeForceRightToLeft &&
|
||
((RNSScreenEdgeGestureRecognizer *)gestureRecognizer).edges == UIRectEdgeRight) ||
|
||
(_controller.view.semanticContentAttribute != UISemanticContentAttributeForceRightToLeft &&
|
||
((RNSScreenEdgeGestureRecognizer *)gestureRecognizer).edges == UIRectEdgeLeft);
|
||
if (isCorrectEdge) {
|
||
[self cancelTouchesInParent];
|
||
return YES;
|
||
}
|
||
}
|
||
return NO;
|
||
} else {
|
||
if ([gestureRecognizer isKindOfClass:[RNSScreenEdgeGestureRecognizer class]]) {
|
||
// it should only recognize with `customAnimationOnSwipe` set
|
||
return NO;
|
||
}
|
||
// _UIParallaxTransitionPanGestureRecognizer (other...)
|
||
[self cancelTouchesInParent];
|
||
return YES;
|
||
}
|
||
|
||
#endif // TARGET_OS_TV
|
||
}
|
||
|
||
#if !TARGET_OS_TV
|
||
- (void)setupGestureHandlers
|
||
{
|
||
// gesture recognizers for custom stack animations
|
||
RNSScreenEdgeGestureRecognizer *leftEdgeSwipeGestureRecognizer =
|
||
[[RNSScreenEdgeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:)];
|
||
leftEdgeSwipeGestureRecognizer.edges = UIRectEdgeLeft;
|
||
leftEdgeSwipeGestureRecognizer.delegate = self;
|
||
[self addGestureRecognizer:leftEdgeSwipeGestureRecognizer];
|
||
|
||
RNSScreenEdgeGestureRecognizer *rightEdgeSwipeGestureRecognizer =
|
||
[[RNSScreenEdgeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:)];
|
||
rightEdgeSwipeGestureRecognizer.edges = UIRectEdgeRight;
|
||
rightEdgeSwipeGestureRecognizer.delegate = self;
|
||
[self addGestureRecognizer:rightEdgeSwipeGestureRecognizer];
|
||
|
||
// gesture recognizer for full width swipe gesture
|
||
RNSPanGestureRecognizer *panRecognizer = [[RNSPanGestureRecognizer alloc] initWithTarget:self
|
||
action:@selector(handleSwipe:)];
|
||
panRecognizer.delegate = self;
|
||
[self addGestureRecognizer:panRecognizer];
|
||
}
|
||
|
||
- (void)handleSwipe:(UIPanGestureRecognizer *)gestureRecognizer
|
||
{
|
||
RNSScreenView *topScreen = _reactSubviews.lastObject;
|
||
float translation;
|
||
float velocity;
|
||
float distance;
|
||
if (topScreen.swipeDirection == RNSScreenSwipeDirectionVertical) {
|
||
translation = [gestureRecognizer translationInView:gestureRecognizer.view].y;
|
||
velocity = [gestureRecognizer velocityInView:gestureRecognizer.view].y;
|
||
distance = gestureRecognizer.view.bounds.size.height;
|
||
} else {
|
||
translation = [gestureRecognizer translationInView:gestureRecognizer.view].x;
|
||
velocity = [gestureRecognizer velocityInView:gestureRecognizer.view].x;
|
||
distance = gestureRecognizer.view.bounds.size.width;
|
||
BOOL isRTL = _controller.view.semanticContentAttribute == UISemanticContentAttributeForceRightToLeft;
|
||
if (isRTL) {
|
||
translation = -translation;
|
||
velocity = -velocity;
|
||
}
|
||
}
|
||
|
||
float transitionProgress = (translation / distance);
|
||
|
||
switch (gestureRecognizer.state) {
|
||
case UIGestureRecognizerStateBegan: {
|
||
_interactionController = [UIPercentDrivenInteractiveTransition new];
|
||
[_controller popViewControllerAnimated:YES];
|
||
break;
|
||
}
|
||
|
||
case UIGestureRecognizerStateChanged: {
|
||
[_interactionController updateInteractiveTransition:transitionProgress];
|
||
break;
|
||
}
|
||
|
||
case UIGestureRecognizerStateCancelled: {
|
||
[_interactionController cancelInteractiveTransition];
|
||
break;
|
||
}
|
||
|
||
case UIGestureRecognizerStateEnded: {
|
||
// values taken from
|
||
// https://github.com/react-navigation/react-navigation/blob/54739828598d7072c1bf7b369659e3682db3edc5/packages/stack/src/views/Stack/Card.tsx#L316
|
||
BOOL shouldFinishTransition = (translation + velocity * 0.3) > (distance / 2);
|
||
if (shouldFinishTransition) {
|
||
[_interactionController finishInteractiveTransition];
|
||
} else {
|
||
[_interactionController cancelInteractiveTransition];
|
||
}
|
||
_interactionController = nil;
|
||
}
|
||
default: {
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
- (id<UIViewControllerInteractiveTransitioning>)navigationController:(UINavigationController *)navigationController
|
||
interactionControllerForAnimationController:
|
||
(id<UIViewControllerAnimatedTransitioning>)animationController
|
||
{
|
||
RNSScreenView *fromView = [_controller.transitionCoordinator viewForKey:UITransitionContextFromViewKey];
|
||
RNSScreenView *toView = [_controller.transitionCoordinator viewForKey:UITransitionContextToViewKey];
|
||
// we can intercept clicking back button here, we check reactSuperview since this method also fires when
|
||
// navigating back from JS
|
||
if (_interactionController == nil && fromView.reactSuperview) {
|
||
BOOL shouldCancelDismiss = [self shouldCancelDismissFromView:fromView toView:toView];
|
||
if (shouldCancelDismiss) {
|
||
_interactionController = [UIPercentDrivenInteractiveTransition new];
|
||
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.01 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
|
||
[self->_interactionController cancelInteractiveTransition];
|
||
self->_interactionController = nil;
|
||
int fromIndex = (int)[self->_reactSubviews indexOfObject:fromView];
|
||
int toIndex = (int)[self->_reactSubviews indexOfObject:toView];
|
||
int indexDiff = fromIndex - toIndex;
|
||
int dismissCount = indexDiff > 0 ? indexDiff : 1;
|
||
[self updateContainer];
|
||
[fromView notifyDismissCancelledWithDismissCount:dismissCount];
|
||
});
|
||
}
|
||
}
|
||
return _interactionController;
|
||
}
|
||
|
||
- (id<UIViewControllerInteractiveTransitioning>)interactionControllerForDismissal:
|
||
(id<UIViewControllerAnimatedTransitioning>)animator
|
||
{
|
||
return _interactionController;
|
||
}
|
||
|
||
- (void)navigationController:(UINavigationController *)navigationController
|
||
didShowViewController:(UIViewController *)viewController
|
||
animated:(BOOL)animated
|
||
{
|
||
[self emitOnFinishTransitioningEvent];
|
||
[RNSScreenWindowTraits updateWindowTraits];
|
||
}
|
||
#endif
|
||
|
||
- (void)markChildUpdated
|
||
{
|
||
// do nothing
|
||
}
|
||
|
||
- (void)didUpdateChildren
|
||
{
|
||
// do nothing
|
||
}
|
||
|
||
- (UIViewController *)reactViewController
|
||
{
|
||
return _controller;
|
||
}
|
||
|
||
- (BOOL)isInGestureResponseDistance:(UIGestureRecognizer *)gestureRecognizer topScreen:(RNSScreenView *)topScreen
|
||
{
|
||
NSDictionary *gestureResponseDistanceValues = topScreen.gestureResponseDistance;
|
||
float x = [gestureRecognizer locationInView:gestureRecognizer.view].x;
|
||
float y = [gestureRecognizer locationInView:gestureRecognizer.view].y;
|
||
BOOL isRTL = _controller.view.semanticContentAttribute == UISemanticContentAttributeForceRightToLeft;
|
||
if (isRTL) {
|
||
x = _controller.view.frame.size.width - x;
|
||
}
|
||
|
||
// see:
|
||
// https://github.com/software-mansion/react-native-screens/pull/1442/commits/74d4bae321875d8305ad021b3d448ebf713e7d56
|
||
// this prop is always default initialized so we do not expect any nils
|
||
float start = [gestureResponseDistanceValues[@"start"] floatValue];
|
||
float end = [gestureResponseDistanceValues[@"end"] floatValue];
|
||
float top = [gestureResponseDistanceValues[@"top"] floatValue];
|
||
float bottom = [gestureResponseDistanceValues[@"bottom"] floatValue];
|
||
|
||
// we check if any of the constraints are violated and return NO if so
|
||
return !(
|
||
(start != -1 && x < start) || (end != -1 && x > end) || (top != -1 && y < top) || (bottom != -1 && y > bottom));
|
||
}
|
||
|
||
// By default, the header buttons that are not inside the native hit area
|
||
// cannot be clicked, so we check it by ourselves
|
||
- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
|
||
{
|
||
if (CGRectContainsPoint(_controller.navigationBar.frame, point)) {
|
||
// headerConfig should be the first subview of the topmost screen
|
||
UIView *headerConfig = [[_reactSubviews.lastObject reactSubviews] firstObject];
|
||
if ([headerConfig isKindOfClass:[RNSScreenStackHeaderConfig class]]) {
|
||
UIView *headerHitTestResult = [headerConfig hitTest:point withEvent:event];
|
||
if (headerHitTestResult != nil) {
|
||
return headerHitTestResult;
|
||
}
|
||
}
|
||
}
|
||
return [super hitTest:point withEvent:event];
|
||
}
|
||
|
||
#if !TARGET_OS_TV
|
||
|
||
- (BOOL)isScrollViewPanGestureRecognizer:(UIGestureRecognizer *)gestureRecognizer
|
||
{
|
||
// NOTE: This hack is required to restore native behavior of edge swipe (interactive pop gesture)
|
||
// without this, on a screen with a scroll view, it's only possible to pop view by panning horizontally
|
||
// if even slightly diagonal (or if in motion), scroll view will scroll, and edge swipe will be cancelled
|
||
if (![[gestureRecognizer view] isKindOfClass:[UIScrollView class]]) {
|
||
return NO;
|
||
}
|
||
UIScrollView *scrollView = (UIScrollView *)gestureRecognizer.view;
|
||
return scrollView.panGestureRecognizer == gestureRecognizer;
|
||
}
|
||
|
||
// Custom method for compatibility with iOS < 13.4
|
||
// RNSScreenStackView is a UIGestureRecognizerDelegate for three types of gesture recognizers:
|
||
// RNSPanGestureRecognizer, RNSScreenEdgeGestureRecognizer, _UIParallaxTransitionPanGestureRecognizer
|
||
// Be careful when adding another type of gesture recognizer.
|
||
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceivePressOrTouchEvent:(NSObject *)event
|
||
{
|
||
RNSScreenView *topScreen = _reactSubviews.lastObject;
|
||
|
||
if (![topScreen isKindOfClass:[RNSScreenView class]] || !topScreen.gestureEnabled ||
|
||
_controller.viewControllers.count < 2 || [topScreen isModal]) {
|
||
return NO;
|
||
}
|
||
|
||
// We want to pass events to RNSPanGestureRecognizer iff full screen swipe is enabled.
|
||
if ([gestureRecognizer isKindOfClass:[RNSPanGestureRecognizer class]]) {
|
||
return topScreen.fullScreenSwipeEnabled;
|
||
}
|
||
|
||
// RNSScreenEdgeGestureRecognizer || _UIParallaxTransitionPanGestureRecognizer
|
||
return YES;
|
||
}
|
||
|
||
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceivePress:(UIPress *)press;
|
||
{
|
||
return [self gestureRecognizer:gestureRecognizer shouldReceivePressOrTouchEvent:press];
|
||
}
|
||
|
||
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch;
|
||
{
|
||
return [self gestureRecognizer:gestureRecognizer shouldReceivePressOrTouchEvent:touch];
|
||
}
|
||
|
||
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer
|
||
shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
|
||
{
|
||
if ([gestureRecognizer isKindOfClass:[RNSPanGestureRecognizer class]] &&
|
||
[self isScrollViewPanGestureRecognizer:otherGestureRecognizer]) {
|
||
RNSPanGestureRecognizer *panGestureRecognizer = (RNSPanGestureRecognizer *)gestureRecognizer;
|
||
BOOL isBackGesture = [panGestureRecognizer translationInView:panGestureRecognizer.view].x > 0 &&
|
||
_controller.viewControllers.count > 1;
|
||
|
||
if (gestureRecognizer.state == UIGestureRecognizerStateBegan || isBackGesture) {
|
||
return NO;
|
||
}
|
||
|
||
return YES;
|
||
}
|
||
return NO;
|
||
}
|
||
|
||
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer
|
||
shouldBeRequiredToFailByGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
|
||
{
|
||
return (
|
||
[gestureRecognizer isKindOfClass:[UIScreenEdgePanGestureRecognizer class]] &&
|
||
[self isScrollViewPanGestureRecognizer:otherGestureRecognizer]);
|
||
}
|
||
|
||
#endif // !TARGET_OS_TV
|
||
|
||
- (void)insertReactSubview:(RNSScreenView *)subview atIndex:(NSInteger)atIndex
|
||
{
|
||
if (![subview isKindOfClass:[RNSScreenView class]]) {
|
||
RCTLogError(@"ScreenStack only accepts children of type Screen");
|
||
return;
|
||
}
|
||
subview.reactSuperview = self;
|
||
[_reactSubviews insertObject:subview atIndex:atIndex];
|
||
}
|
||
|
||
- (void)removeReactSubview:(RNSScreenView *)subview
|
||
{
|
||
subview.reactSuperview = nil;
|
||
[_reactSubviews removeObject:subview];
|
||
}
|
||
|
||
- (void)didUpdateReactSubviews
|
||
{
|
||
// we need to wait until children have their layout set. At this point they don't have the layout
|
||
// set yet, however the layout call is already enqueued on ui thread. Enqueuing update call on the
|
||
// ui queue will guarantee that the update will run after layout.
|
||
dispatch_async(dispatch_get_main_queue(), ^{
|
||
self->_hasLayout = YES;
|
||
[self maybeAddToParentAndUpdateContainer];
|
||
});
|
||
}
|
||
|
||
#ifdef RCT_NEW_ARCH_ENABLED
|
||
#pragma mark - Fabric specific
|
||
|
||
- (void)mountChildComponentView:(UIView<RCTComponentViewProtocol> *)childComponentView index:(NSInteger)index
|
||
{
|
||
if (![childComponentView isKindOfClass:[RNSScreenView class]]) {
|
||
RCTLogError(@"ScreenStack only accepts children of type Screen");
|
||
return;
|
||
}
|
||
|
||
RCTAssert(
|
||
childComponentView.reactSuperview == nil,
|
||
@"Attempt to mount already mounted component view. (parent: %@, child: %@, index: %@, existing parent: %@)",
|
||
self,
|
||
childComponentView,
|
||
@(index),
|
||
@([childComponentView.superview tag]));
|
||
|
||
[_reactSubviews insertObject:(RNSScreenView *)childComponentView atIndex:index];
|
||
((RNSScreenView *)childComponentView).reactSuperview = self;
|
||
dispatch_async(dispatch_get_main_queue(), ^{
|
||
[self maybeAddToParentAndUpdateContainer];
|
||
});
|
||
}
|
||
|
||
- (void)unmountChildComponentView:(UIView<RCTComponentViewProtocol> *)childComponentView index:(NSInteger)index
|
||
{
|
||
RNSScreenView *screenChildComponent = (RNSScreenView *)childComponentView;
|
||
// We should only do a snapshot of a screen that is on the top.
|
||
// We also check `_presentedModals` since if you push 2 modals, second one is not a "child" of _controller.
|
||
// Also, when dissmised with a gesture, the screen already is not under the window, so we don't need to apply
|
||
// snapshot.
|
||
if (screenChildComponent.window != nil &&
|
||
((screenChildComponent == _controller.visibleViewController.view && _presentedModals.count < 2) ||
|
||
screenChildComponent == [_presentedModals.lastObject view])) {
|
||
[screenChildComponent.controller setViewToSnapshot:_snapshot];
|
||
}
|
||
|
||
RCTAssert(
|
||
screenChildComponent.reactSuperview == self,
|
||
@"Attempt to unmount a view which is mounted inside different view. (parent: %@, child: %@, index: %@)",
|
||
self,
|
||
screenChildComponent,
|
||
@(index));
|
||
RCTAssert(
|
||
(_reactSubviews.count > index) && [_reactSubviews objectAtIndex:index] == childComponentView,
|
||
@"Attempt to unmount a view which has a different index. (parent: %@, child: %@, index: %@, actual index: %@, tag at index: %@)",
|
||
self,
|
||
screenChildComponent,
|
||
@(index),
|
||
@([_reactSubviews indexOfObject:screenChildComponent]),
|
||
@([[_reactSubviews objectAtIndex:index] tag]));
|
||
screenChildComponent.reactSuperview = nil;
|
||
[_reactSubviews removeObject:screenChildComponent];
|
||
[screenChildComponent removeFromSuperview];
|
||
dispatch_async(dispatch_get_main_queue(), ^{
|
||
[self maybeAddToParentAndUpdateContainer];
|
||
});
|
||
}
|
||
|
||
- (void)takeSnapshot
|
||
{
|
||
_snapshot = [_controller.visibleViewController.view snapshotViewAfterScreenUpdates:NO];
|
||
}
|
||
|
||
- (void)mountingTransactionWillMount:(react::MountingTransaction const &)transaction
|
||
withSurfaceTelemetry:(react::SurfaceTelemetry const &)surfaceTelemetry
|
||
{
|
||
for (auto &mutation : transaction.getMutations()) {
|
||
if (mutation.type == react::ShadowViewMutation::Type::Remove && mutation.parentShadowView.componentName != nil &&
|
||
strcmp(mutation.parentShadowView.componentName, "RNSScreenStack") == 0) {
|
||
[self takeSnapshot];
|
||
return;
|
||
}
|
||
}
|
||
}
|
||
|
||
- (void)prepareForRecycle
|
||
{
|
||
[super prepareForRecycle];
|
||
_reactSubviews = [NSMutableArray new];
|
||
|
||
for (UIViewController *controller in _presentedModals) {
|
||
[controller dismissViewControllerAnimated:NO completion:nil];
|
||
}
|
||
|
||
[_presentedModals removeAllObjects];
|
||
[self dismissOnReload];
|
||
[_controller willMoveToParentViewController:nil];
|
||
[_controller removeFromParentViewController];
|
||
[_controller setViewControllers:@[ [UIViewController new] ]];
|
||
}
|
||
|
||
+ (react::ComponentDescriptorProvider)componentDescriptorProvider
|
||
{
|
||
return react::concreteComponentDescriptorProvider<react::RNSScreenStackComponentDescriptor>();
|
||
}
|
||
#else
|
||
#pragma mark - Paper specific
|
||
|
||
- (void)invalidate
|
||
{
|
||
_invalidated = YES;
|
||
for (UIViewController *controller in _presentedModals) {
|
||
[controller dismissViewControllerAnimated:NO completion:nil];
|
||
}
|
||
[_presentedModals removeAllObjects];
|
||
[_controller willMoveToParentViewController:nil];
|
||
[_controller removeFromParentViewController];
|
||
}
|
||
|
||
#endif // RCT_NEW_ARCH_ENABLED
|
||
|
||
@end
|
||
|
||
#ifdef RCT_NEW_ARCH_ENABLED
|
||
Class<RCTComponentViewProtocol> RNSScreenStackCls(void)
|
||
{
|
||
return RNSScreenStackView.class;
|
||
}
|
||
#endif
|
||
|
||
@implementation RNSScreenStackManager {
|
||
NSPointerArray *_stacks;
|
||
}
|
||
|
||
RCT_EXPORT_MODULE()
|
||
|
||
RCT_EXPORT_VIEW_PROPERTY(onFinishTransitioning, RCTDirectEventBlock);
|
||
|
||
#ifdef RCT_NEW_ARCH_ENABLED
|
||
#else
|
||
- (UIView *)view
|
||
{
|
||
RNSScreenStackView *view = [[RNSScreenStackView alloc] initWithManager:self];
|
||
if (!_stacks) {
|
||
_stacks = [NSPointerArray weakObjectsPointerArray];
|
||
}
|
||
[_stacks addPointer:(__bridge void *)view];
|
||
return view;
|
||
}
|
||
#endif // RCT_NEW_ARCH_ENABLED
|
||
|
||
- (void)invalidate
|
||
{
|
||
for (RNSScreenStackView *stack in _stacks) {
|
||
[stack dismissOnReload];
|
||
}
|
||
_stacks = nil;
|
||
}
|
||
|
||
@end
|