144 lines
4.5 KiB
Plaintext
144 lines
4.5 KiB
Plaintext
#import "RNSScreenStackHostComponentView.h"
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#import <React/RCTConversions.h>
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#import <React/RCTMountingTransactionObserving.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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#import "RNSDefines.h"
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#import "Swift-Bridging.h"
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namespace react = facebook::react;
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@interface RNSScreenStackHostComponentView () <RCTMountingTransactionObserving>
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@end
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@implementation RNSScreenStackHostComponentView {
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RNSStackController *_Nonnull _controller;
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NSMutableArray<RNSStackScreenComponentView *> *_Nonnull _reactSubviews;
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bool _hasModifiedReactSubviewsInCurrentTransaction;
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}
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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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[self initState];
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}
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return self;
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}
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- (void)initState
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{
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_controller = [[RNSStackController alloc] initWithStackHostComponentView:self];
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_hasModifiedReactSubviewsInCurrentTransaction = false;
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_reactSubviews = [NSMutableArray new];
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}
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- (void)didMoveToWindow
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{
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RCTAssert(_controller != nil, @"[RNScreens] Controller must not be nil while attaching to window");
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[self reactAddControllerToClosestParent:_controller];
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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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[controller didMoveToParentViewController:parentView.reactViewController];
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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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RNS_IGNORE_SUPER_CALL_BEGIN
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- (nonnull NSMutableArray<RNSStackScreenComponentView *> *)reactSubviews
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{
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return _reactSubviews;
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}
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RNS_IGNORE_SUPER_CALL_END
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- (nonnull RNSStackController *)stackController
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{
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RCTAssert(_controller != nil, @"[RNScreens] Controller must not be nil");
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return _controller;
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}
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#pragma mark - RCTViewComponentViewProtocol
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- (void)mountChildComponentView:(UIView<RCTComponentViewProtocol> *)childComponentView index:(NSInteger)index
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{
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RCTAssert(
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[childComponentView isKindOfClass:RNSStackScreenComponentView.class],
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@"[RNScreens] Attempt to mount child of unsupported type: %@, expected %@",
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childComponentView.class,
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RNSStackScreenComponentView.class);
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auto *childScreen = static_cast<RNSStackScreenComponentView *>(childComponentView);
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childScreen.stackHost = self;
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[_reactSubviews insertObject:childScreen atIndex:index];
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_hasModifiedReactSubviewsInCurrentTransaction = true;
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}
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- (void)unmountChildComponentView:(UIView<RCTComponentViewProtocol> *)childComponentView index:(NSInteger)index
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{
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RCTAssert(
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[childComponentView isKindOfClass:RNSStackScreenComponentView.class],
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@"[RNScreens] Attempt to unmount child of unsupported type: %@, expected %@",
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childComponentView.class,
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RNSStackScreenComponentView.class);
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auto *childScreen = static_cast<RNSStackScreenComponentView *>(childComponentView);
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[_reactSubviews removeObject:childScreen];
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childScreen.stackHost = nil;
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_hasModifiedReactSubviewsInCurrentTransaction = true;
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}
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+ (react::ComponentDescriptorProvider)componentDescriptorProvider
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{
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return react::concreteComponentDescriptorProvider<react::RNSScreenStackHostComponentDescriptor>();
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}
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+ (BOOL)shouldBeRecycled
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{
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// There won't be tens of instances of this component usually & it's easier for now.
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// We could consider enabling it someday though.
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return NO;
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}
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#pragma mark - RCTMountingTransactionObserving
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- (void)mountingTransactionWillMount:(const facebook::react::MountingTransaction &)transaction
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withSurfaceTelemetry:(const facebook::react::SurfaceTelemetry &)surfaceTelemetry
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{
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_hasModifiedReactSubviewsInCurrentTransaction = false;
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[_controller reactMountingTransactionWillMount];
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}
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- (void)mountingTransactionDidMount:(const facebook::react::MountingTransaction &)transaction
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withSurfaceTelemetry:(const facebook::react::SurfaceTelemetry &)surfaceTelemetry
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{
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if (_hasModifiedReactSubviewsInCurrentTransaction) {
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[_controller setNeedsUpdateOfChildViewControllers];
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}
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[_controller reactMountingTransactionDidMount];
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}
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@end
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Class<RCTComponentViewProtocol> RNSScreenStackHostCls(void)
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{
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return RNSScreenStackHostComponentView.class;
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}
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