bsky-social-app/patches/react-native-pager-view@6.8.0.patch

diff --git a/ios/Fabric/RNCPagerViewComponentView.mm b/ios/Fabric/RNCPagerViewComponentView.mm
index 652a5c123100e7010011f07649517aa9e0cbc554..efbc3af622c4fee8267a78144b906c7b5de7859c 100644
--- a/ios/Fabric/RNCPagerViewComponentView.mm
+++ b/ios/Fabric/RNCPagerViewComponentView.mm
@@ -90,6 +90,62 @@ - (void)willMoveToSuperview:(UIView *)newSuperview {
     }
 }
 
+/*
+ * UIKit resolves several behaviors (status-bar-tap scroll-to-top, safe area
+ * propagation, appearance callbacks) by walking parentViewController from a
+ * view's nearest view controller up to the window's root view controller.
+ * The Paper implementation embeds the UIPageViewController into that chain
+ * via reactAddControllerToClosestParent:, but this Fabric implementation
+ * leaves it orphaned (parentViewController == nil), which among other things
+ * makes UIKit ignore every scroll view rendered inside the pager when
+ * handling the status bar scroll-to-top tap. Attach the page view controller
+ * to the nearest ancestor view controller to restore parity with Paper.
+ */
+- (void)attachNativePageViewControllerToNearestParent {
+    if (_nativePageViewController == nil ||
+        _nativePageViewController.parentViewController != nil) {
+        return;
+    }
+    UIResponder *responder = self.nextResponder;
+    while (responder != nil && ![responder isKindOfClass:[UIViewController class]]) {
+        responder = responder.nextResponder;
+    }
+    UIViewController *parent = (UIViewController *)responder;
+    if (parent == nil) {
+        return;
+    }
+    [parent addChildViewController:_nativePageViewController];
+    [_nativePageViewController didMoveToParentViewController:parent];
+}
+
+- (void)detachNativePageViewControllerFromParent {
+    if (_nativePageViewController.parentViewController == nil) {
+        return;
+    }
+    [_nativePageViewController willMoveToParentViewController:nil];
+    [_nativePageViewController removeFromParentViewController];
+}
+
+- (void)didMoveToWindow {
+    [super didMoveToWindow];
+    if (self.window != nil) {
+        [self attachNativePageViewControllerToNearestParent];
+    }
+}
+
+- (void)layoutSubviews {
+    [super layoutSubviews];
+    /*
+     * On the first didMoveToWindow the ancestor view controller may not be
+     * wired up yet (see callstack/react-native-pager-view#1089 for the same
+     * timing issue in v8), so retry here; the attach is a cheap no-op once
+     * the controller has a parent.
+     */
+    if (self.window != nil) {
+        [self attachNativePageViewControllerToNearestParent];
+    }
+}
+
 
 #pragma mark - React API
 
@@ -126,6 +182,13 @@ -(void)updateLayoutMetrics:(const facebook::react::LayoutMetrics &)layoutMetrics
 
 -(void)prepareForRecycle {
     [super prepareForRecycle];
+    /*
+     * Undo the child view controller relationship added in
+     * attachNativePageViewControllerToNearestParent, otherwise the parent
+     * view controller keeps the page view controller (and its subtree) alive
+     * after unmount.
+     */
+    [self detachNativePageViewControllerFromParent];
     _nativePageViewController = nil;
     _currentIndex = -1;
 }
@@ -421,8 +484,44 @@ + (ComponentDescriptorProvider)componentDescriptorProvider
 }
 
 
+/*
+ * Finds the navigation controller managing this pager via the responder
+ * chain, so the pager can cooperate with the controller's back gesture.
+ */
+- (UINavigationController *)nearestNavigationController {
+    UIResponder *responder = self.nextResponder;
+    while (responder != nil) {
+        if ([responder isKindOfClass:[UINavigationController class]]) {
+            return (UINavigationController *)responder;
+        }
+        responder = responder.nextResponder;
+    }
+    return nil;
+}
+
 - (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {
 
+    // iOS 26+ full-screen back gesture (interactiveContentPopGestureRecognizer)
+    if (@available(iOS 26.0, *)) {
+        if (gestureRecognizer == self.panGestureRecognizer &&
+            otherGestureRecognizer != nil &&
+            otherGestureRecognizer == [self nearestNavigationController].interactiveContentPopGestureRecognizer) {
+            UIPanGestureRecognizer* panGestureRecognizer = (UIPanGestureRecognizer*) gestureRecognizer;
+            CGPoint velocity = [panGestureRecognizer velocityInView:self];
+            BOOL isLTR = [self isLtrLayout];
+            BOOL isBackGesture = (isLTR && velocity.x > 0) || (!isLTR && velocity.x < 0);
+
+            if (self.currentIndex == 0 && isBackGesture) {
+                scrollView.panGestureRecognizer.enabled = false;
+            } else {
+                const auto &viewProps = *std::static_pointer_cast<const RNCViewPagerProps>(_props);
+                scrollView.panGestureRecognizer.enabled = viewProps.scrollEnabled;
+            }
+
+            return YES;
+        }
+    }
+
     // Recognize simultaneously only if the other gesture is RN Screen's pan gesture (one that is used to perform fullScreenGestureEnabled)
     if (gestureRecognizer == self.panGestureRecognizer && [NSStringFromClass([otherGestureRecognizer class]) isEqual: @"RNSPanGestureRecognizer"]) {
         UIPanGestureRecognizer* panGestureRecognizer = (UIPanGestureRecognizer*) gestureRecognizer;
diff --git a/ios/RNCPagerView.m b/ios/RNCPagerView.m
index adfc7c6f2224b898a02319d352bb4fe11a18fd7e..939bb801c5b0ca6f93b77cb0507c19d137e08e77 100644
--- a/ios/RNCPagerView.m
+++ b/ios/RNCPagerView.m
@@ -498,6 +498,25 @@ - (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecogni
         return YES;
     }
     
+    // iOS 26+ full-screen back gesture (interactiveContentPopGestureRecognizer)
+    if (@available(iOS 26, *)) {
+        if (gestureRecognizer == self.panGestureRecognizer &&
+            otherGestureRecognizer == self.reactViewController.navigationController.interactiveContentPopGestureRecognizer) {
+            UIPanGestureRecognizer* panGestureRecognizer = (UIPanGestureRecognizer*) gestureRecognizer;
+            CGPoint velocity = [panGestureRecognizer velocityInView:self];
+            BOOL isLTR = [self isLtrLayout];
+            BOOL isBackGesture = (isLTR && velocity.x > 0) || (!isLTR && velocity.x < 0);
+
+            if (self.currentIndex == 0 && isBackGesture) {
+                self.scrollView.panGestureRecognizer.enabled = false;
+            } else {
+                self.scrollView.panGestureRecognizer.enabled = self.scrollEnabled;
+            }
+
+            return YES;
+        }
+    }
+
     self.scrollView.panGestureRecognizer.enabled = self.scrollEnabled;
     return NO;
 }