ssap_app/node_modules/react-native-screens/ios/RNSScreenStackHeaderConfig.mm

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#ifdef RCT_NEW_ARCH_ENABLED
#import <React/RCTConversions.h>
#import <React/RCTFabricComponentsPlugins.h>
#import <React/RCTImageComponentView.h>
#import <React/RCTMountingTransactionObserving.h>
#import <React/UIView+React.h>
#import <react/renderer/components/image/ImageProps.h>
#import <react/renderer/components/rnscreens/ComponentDescriptors.h>
#import <react/renderer/components/rnscreens/EventEmitters.h>
#import <react/renderer/components/rnscreens/Props.h>
#import <react/renderer/components/rnscreens/RCTComponentViewHelpers.h>
#import <rnscreens/RNSScreenStackHeaderConfigComponentDescriptor.h>
#import "RCTImageComponentView+RNSScreenStackHeaderConfig.h"
#import "UINavigationBar+RNSUtility.h"
#ifndef NDEBUG
#import <react/utils/ManagedObjectWrapper.h>
#endif // !NDEBUG
#else
#import <React/RCTImageView.h>
#import <React/RCTShadowView.h>
#import <React/RCTUIManager.h>
#import <React/RCTUIManagerUtils.h>
#import <utility>
#endif
#import <React/RCTBridge.h>
#import <React/RCTFont.h>
#import <React/RCTImageLoader.h>
#import <React/RCTImageSource.h>
#import "RNSBackBarButtonItem.h"
#import "RNSConvert.h"
#import "RNSDefines.h"
#import "RNSScreen.h"
#import "RNSScreenStackHeaderConfig.h"
#import "RNSSearchBar.h"
#ifdef RCT_NEW_ARCH_ENABLED
namespace react = facebook::react;
#endif // RCT_NEW_ARCH_ENABLED
static constexpr auto DEFAULT_TITLE_FONT_SIZE = @17;
static constexpr auto DEFAULT_TITLE_LARGE_FONT_SIZE = @34;
#if !defined(RCT_NEW_ARCH_ENABLED)
// Some RN private method hacking below. Couldn't figure out better way to access image data
// of a given RCTImageView. See more comments in the code section processing SubviewTypeBackButton
@interface RCTImageView (Private)
- (UIImage *)image;
@end
#endif // !RCT_NEW_ARCH_ENABLED
@interface RCTImageLoader (Private)
- (id<RCTImageCache>)imageCache;
@end
@implementation NSString (RNSStringUtil)
+ (BOOL)rnscreens_isBlankOrNull:(NSString *)string
{
if (string == nil) {
return YES;
}
return [[string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] length] == 0;
}
@end
#ifdef RCT_NEW_ARCH_ENABLED
@interface RNSScreenStackHeaderConfig () <RCTMountingTransactionObserving>
@end
#endif // RCT_NEW_ARCH_ENABLED
@implementation RNSScreenStackHeaderConfig {
NSMutableArray<RNSScreenStackHeaderSubview *> *_reactSubviews;
// Workaround for UIKit edgesForExtendedLayout bug on iOS 26.
// On iOS 26, there is additional offset for UINavigationBar that is not
// accounted for when using edgesForExtendedLayout. That's why we additionaly
// use safeAreaLayoutGuide when header is visible. When bug gets fixed, we can
// get rid of all code related to this workaround.
// More information: https://github.com/software-mansion/react-native-screens/pull/3111
NSArray<NSLayoutConstraint *> *_safeAreaConstraints;
#ifdef RCT_NEW_ARCH_ENABLED
BOOL _initialPropsSet;
react::RNSScreenStackHeaderConfigState _lastSendState;
react::RNSScreenStackHeaderConfigShadowNode::ConcreteState::Shared _state;
/// Whether a react subview has been added / removed in current transaction. This flag is reset after each react
/// transaction via RCTMountingTransactionObserving protocol.
bool _addedReactSubviewsInCurrentTransaction;
#ifndef NDEBUG
RCTImageLoader *imageLoader;
#endif // !NDEBUG
#else
NSDirectionalEdgeInsets _lastHeaderInsets;
__weak RCTBridge *_bridge;
#endif
}
#ifdef RCT_NEW_ARCH_ENABLED
// Needed because of this: https://github.com/facebook/react-native/pull/37274
+ (void)load
{
[super load];
}
- (instancetype)initWithFrame:(CGRect)frame
{
if (self = [super initWithFrame:frame]) {
static const auto defaultProps = std::make_shared<const react::RNSScreenStackHeaderConfigProps>();
_props = defaultProps;
_show = YES;
_translucent = NO;
_addedReactSubviewsInCurrentTransaction = false;
_lastSendState = react::RNSScreenStackHeaderConfigState(react::Size{}, react::EdgeInsets{});
_safeAreaConstraints = nil;
[self initProps];
}
return self;
}
#else
- (instancetype)init
{
if (self = [super init]) {
_translucent = YES;
[self initProps];
}
return self;
}
- (instancetype)initWithBridge:(RCTBridge *)bridge
{
if (self = [super init]) {
_bridge = bridge;
_translucent = YES;
[self initProps];
}
return self;
}
#endif
- (void)initProps
{
self.hidden = YES;
_reactSubviews = [NSMutableArray new];
_backTitleVisible = YES;
_blurEffect = RNSBlurEffectStyleNone;
}
RNS_IGNORE_SUPER_CALL_BEGIN
- (UIView *)reactSuperview
{
return _screenView;
}
- (NSArray<UIView *> *)reactSubviews
{
return _reactSubviews;
}
RNS_IGNORE_SUPER_CALL_END
- (void)removeFromSuperview
{
[super removeFromSuperview];
_screenView = nil;
}
// this method is never invoked by the system since this view
// is not added to native view hierarchy so we can apply our logic
- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
{
for (RNSScreenStackHeaderSubview *subview in _reactSubviews) {
if (subview.type == RNSScreenStackHeaderSubviewTypeLeft || subview.type == RNSScreenStackHeaderSubviewTypeRight) {
// E.g. presence of focused search bar might cause the subviews to be temporarily unmounted & we don't want
// them to be touch targets then, otherwise we might e.g. block cancel button.
// See: https://github.com/software-mansion/react-native-screens/issues/2899
if (subview.window == nil) {
continue;
}
// we wrap the headerLeft/Right component in a UIBarButtonItem
// so we need to hit test subviews from left to right, because of the view flattening
UIView *headerComponent = nil;
for (UIView *headerComponentSubview in subview.subviews) {
CGPoint convertedPoint = [self convertPoint:point toView:headerComponentSubview];
UIView *hitTestResult = [headerComponentSubview hitTest:convertedPoint withEvent:event];
if (hitTestResult != nil) {
headerComponent = hitTestResult;
}
}
return headerComponent;
}
}
return nil;
}
- (void)updateViewControllerIfNeeded
{
UIViewController *vc = _screenView.controller;
UINavigationController *nav = (UINavigationController *)vc.parentViewController;
UIViewController *nextVC = nav.visibleViewController;
if (nav.transitionCoordinator != nil) {
// if navigator is performing transition instead of allowing to update of `visibleConttroller`
// we look at `topController`. This is because during transitiong the `visibleController` won't
// point to the controller that is going to be revealed after transition. This check fixes the
// problem when config gets updated while the transition is ongoing.
nextVC = nav.topViewController;
}
// we want updates sent to the VC directly below modal too since it is also visible
BOOL isPresentingVC = nextVC != nil && vc.presentedViewController == nextVC && vc == nav.topViewController;
BOOL isInFullScreenModal = nav == nil && _screenView.stackPresentation == RNSScreenStackPresentationFullScreenModal;
// if nav is nil, it means we can be in a fullScreen modal, so there is no nextVC, but we still want to update
if (vc != nil && (nextVC == vc || isInFullScreenModal || isPresentingVC)) {
[RNSScreenStackHeaderConfig updateViewController:self.screenView.controller withConfig:self animated:YES];
// As the header might have change in `updateViewController` we need to ensure that header height
// returned by the `onHeaderHeightChange` event is correct.
[self.screenView.controller calculateAndNotifyHeaderHeightChangeIsModal:NO];
}
}
- (void)layoutNavigationControllerView
{
// We need to layout navigation controller view after translucent prop changes, because otherwise
// frame of RNSScreen will not be changed and screen content will remain the same size.
// For more details look at https://github.com/software-mansion/react-native-screens/issues/1158
UIViewController *vc = _screenView.controller;
UINavigationController *navctr = vc.navigationController;
[navctr.view setNeedsLayout];
}
#ifdef RCT_NEW_ARCH_ENABLED
- (void)updateShadowStateWithSize:(CGSize)size edgeInsets:(NSDirectionalEdgeInsets)edgeInsets
{
// I believe Yoga handles RTL internally & .left will be treated as .right in RTL etc.
react::EdgeInsets convertedEdgeInsets{
.left = edgeInsets.leading, .top = edgeInsets.top, .right = edgeInsets.trailing, .bottom = edgeInsets.bottom};
react::Size convertedSize = RCTSizeFromCGSize(size);
auto newState = react::RNSScreenStackHeaderConfigState(convertedSize, convertedEdgeInsets);
if (newState != _lastSendState) {
_lastSendState = newState;
_state->updateState(std::move(newState));
}
}
- (void)updateHeaderStateInShadowTreeInContextOfNavigationBar:(nullable UINavigationBar *)navigationBar
{
if (!navigationBar) {
return;
}
[self updateShadowStateWithSize:navigationBar.frame.size
edgeInsets:[self computeEdgeInsetsOfNavigationBar:navigationBar]];
for (RNSScreenStackHeaderSubview *subview in self.reactSubviews) {
[subview updateShadowStateInContextOfAncestorView:navigationBar];
}
}
- (NSDirectionalEdgeInsets)computeEdgeInsetsOfNavigationBar:(nonnull UINavigationBar *)navigationBar
{
NSDirectionalEdgeInsets navBarMargins = [navigationBar directionalLayoutMargins];
NSDirectionalEdgeInsets navBarContentMargins = [navigationBar.rnscreens_findContentView directionalLayoutMargins];
BOOL isDisplayingBackButton = [self shouldBackButtonBeVisibleInNavigationBar:navigationBar];
// 44.0 is just "closed eyes default". It is so on device I've tested with, nothing more.
UIView *barButtonView = isDisplayingBackButton ? navigationBar.rnscreens_findBackButtonWrapperView : nil;
CGFloat platformBackButtonWidth = barButtonView != nil ? barButtonView.frame.size.width : 44.0f;
const auto edgeInsets = NSDirectionalEdgeInsets{
.leading =
navBarMargins.leading + navBarContentMargins.leading + (isDisplayingBackButton ? platformBackButtonWidth : 0),
.trailing = navBarMargins.trailing + navBarContentMargins.trailing,
};
return edgeInsets;
}
#else
- (void)updateHeaderConfigState:(NSDirectionalEdgeInsets)insets
{
if (_lastHeaderInsets.leading != insets.leading || _lastHeaderInsets.trailing != insets.trailing) {
[_bridge.uiManager setLocalData:[[RNSHeaderConfigInsetsPayload alloc] initWithInsets:insets] forView:self];
_lastHeaderInsets = std::move(insets);
}
}
#endif // RCT_NEW_ARCH_ENABLED
- (BOOL)hasSubviewOfType:(RNSScreenStackHeaderSubviewType)type
{
for (RNSScreenStackHeaderSubview *subview in _reactSubviews) {
if (subview.type == type) {
return YES;
}
}
return NO;
}
- (BOOL)hasSubviewLeft
{
return [self hasSubviewOfType:RNSScreenStackHeaderSubviewTypeLeft];
}
- (BOOL)shouldHeaderBeVisible
{
#ifdef RCT_NEW_ARCH_ENABLED
return self.show;
#else
return !self.hide;
#endif // RCT_NEW_ARCH_ENABLED
}
- (BOOL)shouldBackButtonBeVisibleInNavigationBar:(nullable UINavigationBar *)navBar
{
return navBar.backItem != nil && !self.hideBackButton &&
!(self.backButtonInCustomView == false && self.hasSubviewLeft);
}
+ (void)setAnimatedConfig:(UIViewController *)vc withConfig:(RNSScreenStackHeaderConfig *)config
{
UINavigationBar *navbar = ((UINavigationController *)vc.parentViewController).navigationBar;
[navbar setTintColor:config.color];
// font customized on the navigation item level, so nothing to do here
}
+ (void)setTitleAttibutes:(NSDictionary *)attrs forButton:(UIBarButtonItem *)button
{
[button setTitleTextAttributes:attrs forState:UIControlStateNormal];
[button setTitleTextAttributes:attrs forState:UIControlStateHighlighted];
[button setTitleTextAttributes:attrs forState:UIControlStateDisabled];
[button setTitleTextAttributes:attrs forState:UIControlStateSelected];
[button setTitleTextAttributes:attrs forState:UIControlStateFocused];
}
- (UIImage *)loadBackButtonImageInViewController:(UIViewController *)vc
{
BOOL hasBackButtonImage = NO;
for (RNSScreenStackHeaderSubview *subview in self.reactSubviews) {
if (subview.type == RNSScreenStackHeaderSubviewTypeBackButton && subview.subviews.count > 0) {
hasBackButtonImage = YES;
#ifdef RCT_NEW_ARCH_ENABLED
RCTImageComponentView *imageView = subview.subviews[0];
#else
RCTImageView *imageView = subview.subviews[0];
#endif // RCT_NEW_ARCH_ENABLED
if (imageView.image == nil) {
// This is yet another workaround for loading custom back icon. It turns out that under
// certain circumstances image attribute can be null despite the app running in production
// mode (when images are loaded from the filesystem). This can happen because image attribute
// is reset when image view is detached from window, and also in some cases initialization
// does not populate the frame of the image view before the loading start. The latter result
// in the image attribute not being updated. We manually set frame to the size of an image
// in order to trigger proper reload that'd update the image attribute.
RCTImageSource *imageSource = [RNSScreenStackHeaderConfig imageSourceFromImageView:imageView];
[imageView reactSetFrame:CGRectMake(
imageView.frame.origin.x,
imageView.frame.origin.y,
imageSource.size.width,
imageSource.size.height)];
}
UIImage *image = imageView.image;
#ifndef NDEBUG
// IMPORTANT!!!
// image can be nil in DEV MODE ONLY
//
// It is so, because in dev mode images are loaded over HTTP from the packager. In that case
// we first check if image is already loaded in cache and if it is, we take it from cache and
// display immediately. Otherwise we wait for the transition to finish and retry updating
// header config.
// Unfortunately due to some problems in UIKit we cannot update the image while the screen
// transition is ongoing. This results in the settings being reset after the transition is done
// to the state from before the transition.
if (image == nil) {
// in DEV MODE we try to load from cache (we use private API for that as it is not exposed
// publically in headers).
RCTImageSource *imageSource = [RNSScreenStackHeaderConfig imageSourceFromImageView:imageView];
#ifndef RCT_NEW_ARCH_ENABLED
RCTImageLoader *imageLoader = [_bridge moduleForClass:[RCTImageLoader class]];
#endif // !RCT_NEW_ARCH_ENABLED
image = [imageLoader.imageCache
imageForUrl:imageSource.request.URL.absoluteString
size:imageSource.size
scale:imageSource.scale
#ifdef RCT_NEW_ARCH_ENABLED
resizeMode:resizeModeFromCppEquiv(
std::static_pointer_cast<const react::ImageProps>(imageView.props)->resizeMode)];
#else
resizeMode:imageView.resizeMode];
#endif // RCT_NEW_ARCH_ENABLED
}
#endif // !NDEBUG
if (image == nil) {
// This will be triggered if the image is not in the cache yet. What we do is we wait until
// the end of transition and run header config updates again. We could potentially wait for
// image on load to trigger, but that would require even more private method hacking.
if (vc.transitionCoordinator) {
[vc.transitionCoordinator
animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> _Nonnull context) {
// nothing, we just want completion
}
completion:^(id<UIViewControllerTransitionCoordinatorContext> _Nonnull context) {
// in order for new back button image to be loaded we need to trigger another change
// in back button props that'd make UIKit redraw the button. Otherwise the changes are
// not reflected. Here we change back button visibility which is then immediately restored
#if !TARGET_OS_TV
vc.navigationItem.hidesBackButton = YES;
#endif
[self updateViewControllerIfNeeded];
}];
}
return [UIImage new];
} else {
return image;
}
}
}
return nil;
}
+ (void)willShowViewController:(UIViewController *)vc
animated:(BOOL)animated
withConfig:(RNSScreenStackHeaderConfig *)config
{
[self updateViewController:vc withConfig:config animated:animated];
// As the header might have change in `updateViewController` we need to ensure that header height
// returned by the `onHeaderHeightChange` event is correct.
if ([vc isKindOfClass:[RNSScreen class]]) {
[(RNSScreen *)vc calculateAndNotifyHeaderHeightChangeIsModal:NO];
}
}
+ (UINavigationBarAppearance *)buildAppearance:(UIViewController *)vc
withConfig:(RNSScreenStackHeaderConfig *)config API_AVAILABLE(ios(13.0))
{
UINavigationBarAppearance *appearance = [UINavigationBarAppearance new];
if (config.backgroundColor && CGColorGetAlpha(config.backgroundColor.CGColor) == 0.) {
// Preserve the shadow properties in case the user wants to show the shadow on scroll.
UIColor *shadowColor = appearance.shadowColor;
UIImage *shadowImage = appearance.shadowImage;
// transparent background color
[appearance configureWithTransparentBackground];
if (!config.hideShadow) {
appearance.shadowColor = shadowColor;
appearance.shadowImage = shadowImage;
}
} else {
[appearance configureWithOpaqueBackground];
}
// set background color if specified
if (config.backgroundColor) {
appearance.backgroundColor = config.backgroundColor;
}
switch (config.blurEffect) {
case RNSBlurEffectStyleNone:
appearance.backgroundEffect = nil;
break;
case RNSBlurEffectStyleSystemDefault:
RCTLogError(@"[RNScreens] ScreenStack does not support RNSBlurEffectStyleSystemDefault.");
break;
default:
appearance.backgroundEffect =
[UIBlurEffect effectWithStyle:[RNSConvert tryConvertRNSBlurEffectStyleToUIBlurEffectStyle:config.blurEffect]];
}
if (config.hideShadow) {
appearance.shadowColor = nil;
}
if (config.titleFontFamily || config.titleFontSize || config.titleFontWeight || config.titleColor) {
NSMutableDictionary *attrs = [NSMutableDictionary new];
// Ignore changing header title color on visionOS
#if !TARGET_OS_VISION
if (config.titleColor) {
attrs[NSForegroundColorAttributeName] = config.titleColor;
}
#endif
NSString *family = config.titleFontFamily ?: nil;
NSNumber *size = config.titleFontSize ?: DEFAULT_TITLE_FONT_SIZE;
NSString *weight = config.titleFontWeight ?: nil;
if (family || weight) {
attrs[NSFontAttributeName] = [RCTFont updateFont:nil
withFamily:config.titleFontFamily
size:size
weight:weight
style:nil
variant:nil
scaleMultiplier:1.0];
} else {
attrs[NSFontAttributeName] = [UIFont boldSystemFontOfSize:[size floatValue]];
}
appearance.titleTextAttributes = attrs;
}
if (config.largeTitleFontFamily || config.largeTitleFontSize || config.largeTitleFontWeight ||
config.largeTitleColor || config.titleColor) {
NSMutableDictionary *largeAttrs = [NSMutableDictionary new];
// Ignore changing header title color on visionOS
#if !TARGET_OS_VISION
if (config.largeTitleColor || config.titleColor) {
largeAttrs[NSForegroundColorAttributeName] = config.largeTitleColor ? config.largeTitleColor : config.titleColor;
}
#endif
NSString *largeFamily = config.largeTitleFontFamily ?: nil;
NSNumber *largeSize = config.largeTitleFontSize ?: DEFAULT_TITLE_LARGE_FONT_SIZE;
NSString *largeWeight = config.largeTitleFontWeight ?: nil;
if (largeFamily || largeWeight) {
largeAttrs[NSFontAttributeName] = [RCTFont updateFont:nil
withFamily:largeFamily
size:largeSize
weight:largeWeight
style:nil
variant:nil
scaleMultiplier:1.0];
} else {
largeAttrs[NSFontAttributeName] = [UIFont systemFontOfSize:[largeSize floatValue] weight:UIFontWeightBold];
}
appearance.largeTitleTextAttributes = largeAttrs;
}
UIImage *backButtonImage = [config loadBackButtonImageInViewController:vc];
if (backButtonImage) {
[appearance setBackIndicatorImage:backButtonImage transitionMaskImage:backButtonImage];
} else if (appearance.backIndicatorImage) {
[appearance setBackIndicatorImage:nil transitionMaskImage:nil];
}
return appearance;
}
+ (void)updateViewController:(UIViewController *)vc
withConfig:(RNSScreenStackHeaderConfig *)config
animated:(BOOL)animated
{
UINavigationItem *navitem = vc.navigationItem;
UINavigationController *navctr = (UINavigationController *)vc.parentViewController;
// When modal is shown the underlying RNSScreen isn't attached to any navigation controller.
// During the modal dismissal transition this update method is called on this RNSScreen resulting in nil navctr.
// After the transition is completed it will be called again and will configure the navigation controller correctly.
// Also see: https://github.com/software-mansion/react-native-screens/pull/2336
if (navctr == nil) {
return;
}
NSUInteger currentIndex = [navctr.viewControllers indexOfObject:vc];
UIViewController *prevVC = currentIndex > 0 ? [navctr.viewControllers objectAtIndex:currentIndex - 1] : nil;
UINavigationItem *prevItem = currentIndex > 0 ? prevVC.navigationItem : nil;
BOOL wasHidden = navctr.navigationBarHidden;
BOOL shouldHide = config == nil || !config.shouldHeaderBeVisible;
// See comment above _safeAreaConstraints declaration for reason why this is necessary.
RNSScreenContentWrapper *contentWrapper = nil;
if (@available(iOS 26, *)) {
if (vc.view.subviews.count > 0 && [vc.view.subviews[0] isKindOfClass:[RNSScreenContentWrapper class]]) {
contentWrapper = static_cast<RNSScreenContentWrapper *>(vc.view.subviews[0]);
}
}
if (!shouldHide && !config.translucent) {
// when nav bar is not translucent we change edgesForExtendedLayout to avoid system laying out
// the screen underneath navigation controllers
vc.edgesForExtendedLayout = UIRectEdgeAll - UIRectEdgeTop;
// See comment above _safeAreaConstraints declaration for reason why this is necessary.
if (contentWrapper != nil) {
// Use auto-layout
contentWrapper.translatesAutoresizingMaskIntoConstraints = NO;
if (config->_safeAreaConstraints == nil) {
config->_safeAreaConstraints = @[
[contentWrapper.topAnchor constraintEqualToAnchor:vc.view.safeAreaLayoutGuide.topAnchor],
[contentWrapper.bottomAnchor constraintEqualToAnchor:vc.view.bottomAnchor],
[contentWrapper.leadingAnchor constraintEqualToAnchor:vc.view.leadingAnchor],
[contentWrapper.trailingAnchor constraintEqualToAnchor:vc.view.trailingAnchor]
];
}
[NSLayoutConstraint activateConstraints:config->_safeAreaConstraints];
}
} else {
// system default is UIRectEdgeAll
vc.edgesForExtendedLayout = UIRectEdgeAll;
// See comment above _safeAreaConstraints declaration for reason why this is necessary.
if (contentWrapper != nil) {
[NSLayoutConstraint deactivateConstraints:config->_safeAreaConstraints];
config->_safeAreaConstraints = nil;
contentWrapper.translatesAutoresizingMaskIntoConstraints = YES;
}
}
[navctr setNavigationBarHidden:shouldHide animated:animated];
[config applySemanticContentAttributeIfNeededToNavCtrl:navctr];
if (shouldHide) {
navitem.title = config.title;
return;
}
#if !TARGET_OS_TV
[config configureBackItem:prevItem withPrevVC:prevVC];
if (config.largeTitle) {
navctr.navigationBar.prefersLargeTitles = YES;
}
navitem.largeTitleDisplayMode =
config.largeTitle ? UINavigationItemLargeTitleDisplayModeAlways : UINavigationItemLargeTitleDisplayModeNever;
#endif
UINavigationBarAppearance *appearance = [self buildAppearance:vc withConfig:config];
navitem.standardAppearance = appearance;
navitem.compactAppearance = appearance;
// appearance does not apply to the tvOS so we need to use lagacy customization
#if TARGET_OS_TV
navctr.navigationBar.titleTextAttributes = appearance.titleTextAttributes;
navctr.navigationBar.backgroundColor = appearance.backgroundColor;
#endif
UINavigationBarAppearance *scrollEdgeAppearance =
[[UINavigationBarAppearance alloc] initWithBarAppearance:appearance];
if (config.largeTitleBackgroundColor != nil) {
// Add support for using a fully transparent bar when the backgroundColor is set to transparent.
if (CGColorGetAlpha(config.largeTitleBackgroundColor.CGColor) == 0.) {
// This will also remove the background blur effect in the large title which is otherwise inherited from the
// standard appearance.
[scrollEdgeAppearance configureWithTransparentBackground];
// This must be set to nil otherwise a default view will be added to the navigation bar background with an
// opaque background.
scrollEdgeAppearance.backgroundColor = nil;
} else {
scrollEdgeAppearance.backgroundColor = config.largeTitleBackgroundColor;
}
}
if (config.largeTitleHideShadow) {
scrollEdgeAppearance.shadowColor = nil;
}
navitem.scrollEdgeAppearance = scrollEdgeAppearance;
#if !TARGET_OS_TV
navitem.hidesBackButton = config.hideBackButton;
#endif
navitem.leftBarButtonItem = nil;
navitem.rightBarButtonItem = nil;
navitem.titleView = nil;
#if !TARGET_OS_TV
// We want to set navitem.searchController to nil only if we are sure
// that we are removing the search bar from the header.
bool searchBarPresent = false;
#endif /* !TARGET_OS_TV */
for (RNSScreenStackHeaderSubview *subview in config.reactSubviews) {
// This code should be kept in sync on Fabric with analogous switch statement in
// `- [RNSScreenStackHeaderConfig replaceNavigationBarViewsWithSnapshotOfSubview:]` method.
switch (subview.type) {
case RNSScreenStackHeaderSubviewTypeLeft: {
#if !TARGET_OS_TV
navitem.leftItemsSupplementBackButton = config.backButtonInCustomView;
#endif
UIBarButtonItem *buttonItem = [[UIBarButtonItem alloc] initWithCustomView:subview];
navitem.leftBarButtonItem = buttonItem;
break;
}
case RNSScreenStackHeaderSubviewTypeRight: {
UIBarButtonItem *buttonItem = [[UIBarButtonItem alloc] initWithCustomView:subview];
navitem.rightBarButtonItem = buttonItem;
break;
}
case RNSScreenStackHeaderSubviewTypeCenter:
case RNSScreenStackHeaderSubviewTypeTitle: {
navitem.titleView = subview;
break;
}
case RNSScreenStackHeaderSubviewTypeSearchBar: {
if (subview.subviews == nil || [subview.subviews count] == 0) {
RCTLogWarn(
@"Failed to attach search bar to the header. We recommend using `useLayoutEffect` when managing "
"searchBar properties dynamically. \n\nSee: github.com/software-mansion/react-native-screens/issues/1188");
break;
}
if ([subview.subviews[0] isKindOfClass:[RNSSearchBar class]]) {
#if !TARGET_OS_TV
RNSSearchBar *searchBar = subview.subviews[0];
searchBarPresent = true;
navitem.searchController = searchBar.controller;
navitem.hidesSearchBarWhenScrolling = searchBar.hideWhenScrolling;
#if RNS_IPHONE_OS_VERSION_AVAILABLE(16_0)
if (@available(iOS 16.0, *)) {
navitem.preferredSearchBarPlacement = [searchBar placementAsUINavigationItemSearchBarPlacement];
}
#endif /* Check for iOS 16.0 */
#if RNS_IPHONE_OS_VERSION_AVAILABLE(26_0)
if (@available(iOS 26.0, *)) {
// On iOS 26 beta 6, we observe that search bar is buggy if we change the configuration
// of search bar multiple times. Sometimes, when `stacked` search bar is enabled for root screen,
// it does not show up. It's because we're calling *this* method 2 additional times before
// UIKit does, in order to handle some other bugs. Only for the third time, UIKit "wants" to
// integrate the search bar - we suspect that this final "reconfiguration" causes the bug.
// Setting searchBarPlacementAllowsToolbarIntegration to NO fixes the issue without changing
// older stack logic and shouldn't impact users negatively - if user wants `stacked` placement,
// the search bar should not be integrated anyway. We should monitor if workaround is still
// necessary in next iOS versions and remove it when the bug gets fixed.
// More details: https://github.com/software-mansion/react-native-screens/pull/3168
if (navitem.preferredSearchBarPlacement != UINavigationItemSearchBarPlacementStacked) {
navitem.searchBarPlacementAllowsToolbarIntegration = searchBar.allowToolbarIntegration;
} else {
navitem.searchBarPlacementAllowsToolbarIntegration = NO;
}
}
#endif /* Check for iOS 26.0 */
#endif /* !TARGET_OS_TV */
}
break;
}
case RNSScreenStackHeaderSubviewTypeBackButton: {
break;
}
}
}
#if !TARGET_OS_TV
if (!searchBarPresent) {
navitem.searchController = nil;
}
#endif /* !TARGET_OS_TV */
// This assignment should be done after `navitem.titleView = ...` assignment (iOS 16.0 bug).
// See: https://github.com/software-mansion/react-native-screens/issues/1570 (comments)
navitem.title = config.title;
if (animated && vc.transitionCoordinator != nil &&
vc.transitionCoordinator.presentationStyle == UIModalPresentationNone && !wasHidden) {
// when there is an ongoing transition we may need to update navbar setting in animation block
// using animateAlongsideTransition. However, we only do that given the transition is not a modal
// transition (presentationStyle == UIModalPresentationNone) and that the bar was not previously
// hidden. This is because both for modal transitions and transitions from screen with hidden bar
// the transition animation block does not get triggered. This is ok, because with both of those
// types of transitions there is no "shared" navigation bar that needs to be updated in an animated
// way.
[vc.transitionCoordinator
animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> _Nonnull context) {
[self setAnimatedConfig:vc withConfig:config];
}
completion:^(id<UIViewControllerTransitionCoordinatorContext> _Nonnull context) {
if ([context isCancelled]) {
UIViewController *fromVC = [context viewControllerForKey:UITransitionContextFromViewControllerKey];
RNSScreenStackHeaderConfig *config = nil;
for (UIView *subview in fromVC.view.reactSubviews) {
if ([subview isKindOfClass:[RNSScreenStackHeaderConfig class]]) {
config = (RNSScreenStackHeaderConfig *)subview;
break;
}
}
[self setAnimatedConfig:fromVC withConfig:config];
}
}];
} else {
[self setAnimatedConfig:vc withConfig:config];
}
}
- (void)configureBackItem:(nullable UINavigationItem *)prevItem
withPrevVC:(nullable UIViewController *)prevVC API_UNAVAILABLE(tvos)
{
#if !TARGET_OS_TV
if (prevItem == nil) {
return;
}
const auto *config = self;
const auto isBackTitleBlank = [NSString rnscreens_isBlankOrNull:config.backTitle] == YES;
NSString *resolvedBackTitle = isBackTitleBlank ? prevItem.title : config.backTitle;
// If previous screen controller was recreated (e.g. when you go back to tab with stack that has multiple screens),
// its navigationItem may not have any information from screen's headerConfig, including the title.
// If this is the case, we attempt to extract the title from previous screen's config directly.
if (resolvedBackTitle == nil && [prevVC isKindOfClass:[RNSScreen class]]) {
RNSScreen *prevScreen = static_cast<RNSScreen *>(prevVC);
resolvedBackTitle = prevScreen.screenView.findHeaderConfig.title;
}
prevItem.backButtonTitle = resolvedBackTitle;
// This has any effect only in case the `backBarButtonItem` is not set.
// We apply it before we configure the back item, because it might get overriden.
prevItem.backButtonDisplayMode = config.backButtonDisplayMode;
if (config.isBackTitleVisible) {
RNSBackBarButtonItem *backBarButtonItem = [[RNSBackBarButtonItem alloc] initWithTitle:resolvedBackTitle
style:UIBarButtonItemStylePlain
target:nil
action:nil];
auto shouldUseCustomBackBarButtonItem = config.disableBackButtonMenu;
[backBarButtonItem setMenuHidden:config.disableBackButtonMenu];
if ((config.backTitleFontFamily &&
// While being used by react-navigation, the `backTitleFontFamily` will
// be set to "System" by default - which is the system default font.
// To avoid always considering the font as customized, we need to have an additional check.
// See: https://github.com/software-mansion/react-native-screens/pull/2105#discussion_r1565222738
![config.backTitleFontFamily isEqual:@"System"]) ||
config.backTitleFontSize) {
shouldUseCustomBackBarButtonItem = YES;
NSMutableDictionary *attrs = [NSMutableDictionary new];
NSNumber *size = config.backTitleFontSize ?: @17;
if (config.backTitleFontFamily) {
attrs[NSFontAttributeName] = [RCTFont updateFont:nil
withFamily:config.backTitleFontFamily
size:size
weight:nil
style:nil
variant:nil
scaleMultiplier:1.0];
} else {
attrs[NSFontAttributeName] = [UIFont boldSystemFontOfSize:[size floatValue]];
}
[RNSScreenStackHeaderConfig setTitleAttibutes:attrs forButton:backBarButtonItem];
}
// Prevent unnecessary assignment of backBarButtonItem if it is not customized,
// as assigning one will override the native behavior of automatically shortening
// the title to "Back" or hide the back title if there's not enough space.
// See: https://github.com/software-mansion/react-native-screens/issues/1589
if (shouldUseCustomBackBarButtonItem) {
prevItem.backBarButtonItem = backBarButtonItem;
}
} else {
// back button title should be not visible next to back button,
// but it should still appear in back menu
prevItem.backButtonDisplayMode = UINavigationItemBackButtonDisplayModeMinimal;
}
#endif
}
- (void)applySemanticContentAttributeIfNeededToNavCtrl:(UINavigationController *)navCtrl
{
if ((self.direction == UISemanticContentAttributeForceLeftToRight ||
self.direction == UISemanticContentAttributeForceRightToLeft) &&
// iOS 12 cancels swipe gesture when direction is changed. See #1091
navCtrl.view.semanticContentAttribute != self.direction) {
// This is needed for swipe back gesture direction
navCtrl.view.semanticContentAttribute = self.direction;
// This is responsible for the direction of the navigationBar and its contents
navCtrl.navigationBar.semanticContentAttribute = self.direction;
[[UIButton appearanceWhenContainedInInstancesOfClasses:@[ navCtrl.navigationBar.class ]]
setSemanticContentAttribute:self.direction];
[[UIView appearanceWhenContainedInInstancesOfClasses:@[ navCtrl.navigationBar.class ]]
setSemanticContentAttribute:self.direction];
[[UISearchBar appearanceWhenContainedInInstancesOfClasses:@[ navCtrl.navigationBar.class ]]
setSemanticContentAttribute:self.direction];
}
}
RNS_IGNORE_SUPER_CALL_BEGIN
- (void)insertReactSubview:(RNSScreenStackHeaderSubview *)subview atIndex:(NSInteger)atIndex
{
[_reactSubviews insertObject:subview atIndex:atIndex];
subview.reactSuperview = self;
}
- (void)removeReactSubview:(RNSScreenStackHeaderSubview *)subview
{
[_reactSubviews removeObject:subview];
}
RNS_IGNORE_SUPER_CALL_END
#ifdef RCT_NEW_ARCH_ENABLED
#pragma mark - Fabric specific
- (void)mountChildComponentView:(UIView<RCTComponentViewProtocol> *)childComponentView index:(NSInteger)index
{
if (![childComponentView isKindOfClass:[RNSScreenStackHeaderSubview class]]) {
RCTLogError(@"ScreenStackHeader only accepts children of type ScreenStackHeaderSubview");
return;
}
RCTAssert(
childComponentView.superview == nil,
@"Attempt to mount already mounted component view. (parent: %@, child: %@, index: %@, existing parent: %@)",
self,
childComponentView,
@(index),
@([childComponentView.superview tag]));
// [_reactSubviews insertObject:(RNSScreenStackHeaderSubview *)childComponentView atIndex:index];
[self insertReactSubview:(RNSScreenStackHeaderSubview *)childComponentView atIndex:index];
_addedReactSubviewsInCurrentTransaction = true;
}
- (void)unmountChildComponentView:(UIView<RCTComponentViewProtocol> *)childComponentView index:(NSInteger)index
{
BOOL isGoingToBeRemoved = _screenView.isMarkedForUnmountInCurrentTransaction;
if (isGoingToBeRemoved) {
// For explanation of why we can make a snapshot here despite the fact that our children are already
// unmounted see https://github.com/software-mansion/react-native-screens/pull/2261
[self replaceNavigationBarViewsWithSnapshotOfSubview:(RNSScreenStackHeaderSubview *)childComponentView];
}
[_reactSubviews removeObject:(RNSScreenStackHeaderSubview *)childComponentView];
[childComponentView removeFromSuperview];
if (!isGoingToBeRemoved) {
[self updateViewControllerIfNeeded];
}
}
- (void)mountingTransactionDidMount:(const facebook::react::MountingTransaction &)transaction
withSurfaceTelemetry:(const facebook::react::SurfaceTelemetry &)surfaceTelemetry
{
if (_addedReactSubviewsInCurrentTransaction) {
[self updateViewControllerIfNeeded];
// This call is made for the sake of https://github.com/software-mansion/react-native-screens/pull/2466.
// In case header subview is added **after initial screen render** the system positions it correctly,
// however `viewDidLayoutSubviews` is not called on `RNSNavigationController` and updated frame sizes of the
// subviews are not sent to ShadowTree leading to issues with pressables.
// Sending state update to ShadowTree from here is not enough, because native layout has not yet
// happened after the child had been added. Requesting layout on navigation bar does not trigger layout callbacks
// either, however doing so on main view of navigation controller does the trick.
if (self.shouldHeaderBeVisible) {
[self layoutNavigationControllerView];
}
}
_addedReactSubviewsInCurrentTransaction = false;
}
- (void)replaceNavigationBarViewsWithSnapshotOfSubview:(RNSScreenStackHeaderSubview *)childComponentView
{
if (childComponentView.window != nil) {
UINavigationItem *navitem = _screenView.controller.navigationItem;
UIView *snapshot = [childComponentView snapshotViewAfterScreenUpdates:NO];
// This code should be kept in sync with analogous switch statement in
// `+ [RNSScreenStackHeaderConfig updateViewController: withConfig: animated:]` method.
switch (childComponentView.type) {
case RNSScreenStackHeaderSubviewTypeLeft:
navitem.leftBarButtonItem.customView = snapshot;
break;
case RNSScreenStackHeaderSubviewTypeCenter:
case RNSScreenStackHeaderSubviewTypeTitle:
navitem.titleView = snapshot;
break;
case RNSScreenStackHeaderSubviewTypeRight:
navitem.rightBarButtonItem.customView = snapshot;
break;
case RNSScreenStackHeaderSubviewTypeSearchBar:
case RNSScreenStackHeaderSubviewTypeBackButton:
break;
default:
RCTLogError(@"[RNScreens] Unhandled subview type: %ld", childComponentView.type);
}
}
}
static RCTResizeMode resizeModeFromCppEquiv(react::ImageResizeMode resizeMode)
{
switch (resizeMode) {
case react::ImageResizeMode::Cover:
return RCTResizeModeCover;
case react::ImageResizeMode::Contain:
return RCTResizeModeContain;
case react::ImageResizeMode::Stretch:
return RCTResizeModeStretch;
case react::ImageResizeMode::Center:
return RCTResizeModeCenter;
case react::ImageResizeMode::Repeat:
return RCTResizeModeRepeat;
default:
// Both RCTConvert and ImageProps use this as a default as of RN 0.76
return RCTResizeModeStretch;
}
}
/**
* Fabric implementation of helper method for +loadBackButtonImageInViewController:withConfig:
* There is corresponding Paper implementation (with different parameter type) in Paper specific section.
*/
+ (RCTImageSource *)imageSourceFromImageView:(RCTImageComponentView *)view
{
const auto &imageProps = *std::static_pointer_cast<const react::ImageProps>(view.props);
react::ImageSource cppImageSource = imageProps.sources.at(0);
auto imageSize = CGSize{cppImageSource.size.width, cppImageSource.size.height};
NSURLRequest *request =
[NSURLRequest requestWithURL:[NSURL URLWithString:RCTNSStringFromStringNilIfEmpty(cppImageSource.uri)]];
RCTImageSource *imageSource = [[RCTImageSource alloc] initWithURLRequest:request
size:imageSize
scale:cppImageSource.scale];
return imageSource;
}
#pragma mark - RCTComponentViewProtocol
- (void)prepareForRecycle
{
[super prepareForRecycle];
_initialPropsSet = NO;
// See comment above _safeAreaConstraints declaration for reason why this is necessary.
if (_safeAreaConstraints.count > 0 &&
[_safeAreaConstraints[0].firstItem isKindOfClass:[RNSScreenContentWrapper class]]) {
RNSScreenContentWrapper *contentWrapper = static_cast<RNSScreenContentWrapper *>(_safeAreaConstraints[0].firstItem);
// Disable auto-layout
contentWrapper.translatesAutoresizingMaskIntoConstraints = YES;
}
[NSLayoutConstraint deactivateConstraints:_safeAreaConstraints];
_safeAreaConstraints = nil;
#ifdef RCT_NEW_ARCH_ENABLED
_lastSendState = react::RNSScreenStackHeaderConfigState(react::Size{}, react::EdgeInsets{});
#else
_lastHeaderInsets = NSDirectionalEdgeInsets{};
#endif
}
- (NSNumber *)getFontSizePropValue:(int)value
{
if (value > 0)
return [NSNumber numberWithInt:value];
return nil;
}
+ (react::ComponentDescriptorProvider)componentDescriptorProvider
{
return react::concreteComponentDescriptorProvider<react::RNSScreenStackHeaderConfigComponentDescriptor>();
}
- (void)updateProps:(react::Props::Shared const &)props oldProps:(react::Props::Shared const &)oldProps
{
const auto &oldScreenProps = *std::static_pointer_cast<const react::RNSScreenStackHeaderConfigProps>(_props);
const auto &newScreenProps = *std::static_pointer_cast<const react::RNSScreenStackHeaderConfigProps>(props);
BOOL needsNavigationControllerLayout = !_initialPropsSet;
if (newScreenProps.hidden != !_show) {
_show = !newScreenProps.hidden;
needsNavigationControllerLayout = YES;
}
if (newScreenProps.translucent != _translucent) {
_translucent = newScreenProps.translucent;
needsNavigationControllerLayout = YES;
}
if (newScreenProps.backButtonInCustomView != _backButtonInCustomView) {
[self setBackButtonInCustomView:newScreenProps.backButtonInCustomView];
}
_title = RCTNSStringFromStringNilIfEmpty(newScreenProps.title);
if (newScreenProps.titleFontFamily != oldScreenProps.titleFontFamily) {
_titleFontFamily = RCTNSStringFromStringNilIfEmpty(newScreenProps.titleFontFamily);
}
_titleFontWeight = RCTNSStringFromStringNilIfEmpty(newScreenProps.titleFontWeight);
_titleFontSize = [self getFontSizePropValue:newScreenProps.titleFontSize];
_hideShadow = newScreenProps.hideShadow;
_largeTitle = newScreenProps.largeTitle;
if (newScreenProps.largeTitleFontFamily != oldScreenProps.largeTitleFontFamily) {
_largeTitleFontFamily = RCTNSStringFromStringNilIfEmpty(newScreenProps.largeTitleFontFamily);
}
_largeTitleFontWeight = RCTNSStringFromStringNilIfEmpty(newScreenProps.largeTitleFontWeight);
_largeTitleFontSize = [self getFontSizePropValue:newScreenProps.largeTitleFontSize];
_largeTitleHideShadow = newScreenProps.largeTitleHideShadow;
_largeTitleBackgroundColor = RCTUIColorFromSharedColor(newScreenProps.largeTitleBackgroundColor);
_backTitle = RCTNSStringFromStringNilIfEmpty(newScreenProps.backTitle);
if (newScreenProps.backTitleFontFamily != oldScreenProps.backTitleFontFamily) {
_backTitleFontFamily = RCTNSStringFromStringNilIfEmpty(newScreenProps.backTitleFontFamily);
}
_backTitleFontSize = [self getFontSizePropValue:newScreenProps.backTitleFontSize];
_hideBackButton = newScreenProps.hideBackButton;
_disableBackButtonMenu = newScreenProps.disableBackButtonMenu;
_backButtonDisplayMode =
[RNSConvert UINavigationItemBackButtonDisplayModeFromCppEquivalent:newScreenProps.backButtonDisplayMode];
if (newScreenProps.direction != oldScreenProps.direction) {
_direction = [RNSConvert UISemanticContentAttributeFromCppEquivalent:newScreenProps.direction];
}
_backTitleVisible = newScreenProps.backTitleVisible;
// We cannot compare SharedColor because it is shared value.
// We could compare color value, but it is more performant to just assign new value
_titleColor = RCTUIColorFromSharedColor(newScreenProps.titleColor);
_largeTitleColor = RCTUIColorFromSharedColor(newScreenProps.largeTitleColor);
_color = RCTUIColorFromSharedColor(newScreenProps.color);
_backgroundColor = RCTUIColorFromSharedColor(newScreenProps.backgroundColor);
if (newScreenProps.blurEffect != oldScreenProps.blurEffect) {
_blurEffect = [RNSConvert RNSBlurEffectStyleFromCppEquivalent:newScreenProps.blurEffect];
}
[self updateViewControllerIfNeeded];
if (needsNavigationControllerLayout) {
[self layoutNavigationControllerView];
}
_initialPropsSet = YES;
_props = std::static_pointer_cast<react::RNSScreenStackHeaderConfigProps const>(props);
[super updateProps:props oldProps:oldProps];
}
- (void)updateState:(const facebook::react::State::Shared &)state
oldState:(const facebook::react::State::Shared &)oldState
{
_state = std::static_pointer_cast<const react::RNSScreenStackHeaderConfigShadowNode::ConcreteState>(state);
#ifndef NDEBUG
if (auto imgLoaderPtr = _state.get()->getData().getImageLoader().lock()) {
imageLoader = react::unwrapManagedObject(imgLoaderPtr);
}
#endif // !NDEBUG
}
#else
#pragma mark - Paper specific
- (void)didUpdateReactSubviews
{
[self updateViewControllerIfNeeded];
}
- (void)didSetProps:(NSArray<NSString *> *)changedProps
{
[super didSetProps:changedProps];
[self updateViewControllerIfNeeded];
// We need to layout navigation controller view after translucent prop changes, because otherwise
// frame of RNSScreen will not be changed and screen content will remain the same size.
// For more details look at https://github.com/software-mansion/react-native-screens/issues/1158
if ([changedProps containsObject:@"translucent"]) {
[self layoutNavigationControllerView];
}
}
/**
* Paper implementation of helper method for +loadBackButtonImageInViewController:withConfig:
* There is corresponding Fabric implementation (with different parameter type) in Fabric specific section.
*/
+ (RCTImageSource *)imageSourceFromImageView:(RCTImageView *)view
{
return view.imageSources[0];
}
#endif
@end
#ifdef RCT_NEW_ARCH_ENABLED
Class<RCTComponentViewProtocol> RNSScreenStackHeaderConfigCls(void)
{
return RNSScreenStackHeaderConfig.class;
}
#endif
@implementation RNSScreenStackHeaderConfigManager
RCT_EXPORT_MODULE()
#ifdef RCT_NEW_ARCH_ENABLED
#else
- (UIView *)view
{
return [[RNSScreenStackHeaderConfig alloc] initWithBridge:self.bridge];
}
- (RCTShadowView *)shadowView
{
return [RNSScreenStackHeaderConfigShadowView new];
}
#endif // RCT_NEW_ARCH_ENABLED
RCT_EXPORT_VIEW_PROPERTY(title, NSString)
RCT_EXPORT_VIEW_PROPERTY(titleFontFamily, NSString)
RCT_EXPORT_VIEW_PROPERTY(titleFontSize, NSNumber)
RCT_EXPORT_VIEW_PROPERTY(titleFontWeight, NSString)
RCT_EXPORT_VIEW_PROPERTY(titleColor, UIColor)
RCT_EXPORT_VIEW_PROPERTY(backTitle, NSString)
RCT_EXPORT_VIEW_PROPERTY(backTitleFontFamily, NSString)
RCT_EXPORT_VIEW_PROPERTY(backTitleFontSize, NSNumber)
RCT_EXPORT_VIEW_PROPERTY(backgroundColor, UIColor)
RCT_EXPORT_VIEW_PROPERTY(backTitleVisible, BOOL)
RCT_EXPORT_VIEW_PROPERTY(blurEffect, RNSBlurEffectStyle)
RCT_EXPORT_VIEW_PROPERTY(color, UIColor)
RCT_EXPORT_VIEW_PROPERTY(direction, UISemanticContentAttribute)
RCT_EXPORT_VIEW_PROPERTY(largeTitle, BOOL)
RCT_EXPORT_VIEW_PROPERTY(largeTitleFontFamily, NSString)
RCT_EXPORT_VIEW_PROPERTY(largeTitleFontSize, NSNumber)
RCT_EXPORT_VIEW_PROPERTY(largeTitleFontWeight, NSString)
RCT_EXPORT_VIEW_PROPERTY(largeTitleColor, UIColor)
RCT_EXPORT_VIEW_PROPERTY(largeTitleBackgroundColor, UIColor)
RCT_EXPORT_VIEW_PROPERTY(largeTitleHideShadow, BOOL)
RCT_EXPORT_VIEW_PROPERTY(hideBackButton, BOOL)
RCT_EXPORT_VIEW_PROPERTY(hideShadow, BOOL)
RCT_EXPORT_VIEW_PROPERTY(backButtonInCustomView, BOOL)
RCT_EXPORT_VIEW_PROPERTY(disableBackButtonMenu, BOOL)
RCT_EXPORT_VIEW_PROPERTY(backButtonDisplayMode, UINavigationItemBackButtonDisplayMode)
RCT_REMAP_VIEW_PROPERTY(hidden, hide, BOOL) // `hidden` is an UIView property, we need to use different name internally
RCT_EXPORT_VIEW_PROPERTY(translucent, BOOL)
@end
#ifdef RCT_NEW_ARCH_ENABLED
#else
@implementation RNSHeaderConfigInsetsPayload
- (instancetype)init
{
return [self initWithInsets:NSDirectionalEdgeInsets{}];
}
- (instancetype)initWithInsets:(NSDirectionalEdgeInsets)insets
{
if (self = [super init]) {
self.insets = insets;
}
return self;
}
@end
@implementation RNSScreenStackHeaderConfigShadowView {
}
- (void)setLocalData:(NSObject *)localData
{
if ([localData isKindOfClass:RNSHeaderConfigInsetsPayload.class]) {
RNSHeaderConfigInsetsPayload *payload = (RNSHeaderConfigInsetsPayload *)localData;
[self setPaddingStart:YGValue{.value = (float)payload.insets.leading, .unit = YGUnitPoint}];
[self setPaddingEnd:YGValue{.value = (float)payload.insets.trailing, .unit = YGUnitPoint}];
// Trigger layout prop recomputation
[self didSetProps:@[]];
} else {
[super setLocalData:localData];
}
}
@end
#endif
@implementation RCTConvert (RNSScreenStackHeader)
RCT_ENUM_CONVERTER(
UISemanticContentAttribute,
(@{
@"ltr" : @(UISemanticContentAttributeForceLeftToRight),
@"rtl" : @(UISemanticContentAttributeForceRightToLeft),
}),
UISemanticContentAttributeUnspecified,
integerValue)
RCT_ENUM_CONVERTER(
UINavigationItemBackButtonDisplayMode,
(@{
@"default" : @(UINavigationItemBackButtonDisplayModeDefault),
@"generic" : @(UINavigationItemBackButtonDisplayModeGeneric),
@"minimal" : @(UINavigationItemBackButtonDisplayModeMinimal),
}),
UINavigationItemBackButtonDisplayModeDefault,
integerValue)
@end