[react-native][iOS] Trigger onRequestClose when swiping down a pageSheet

react-native+0.64.1.patch

diff --git a/node_modules/react-native/React/Views/RCTModalHostView.h b/node_modules/react-native/React/Views/RCTModalHostView.h
index c54c1c6..a5c49d1 100644
--- a/node_modules/react-native/React/Views/RCTModalHostView.h
+++ b/node_modules/react-native/React/Views/RCTModalHostView.h
@@ -16,7 +16,7 @@
 
 @protocol RCTModalHostViewInteractor;
 
-@interface RCTModalHostView : UIView <RCTInvalidating>
+@interface RCTModalHostView : UIView <RCTInvalidating, UIAdaptivePresentationControllerDelegate>
 
 @property (nonatomic, copy) NSString *animationType;
 @property (nonatomic, assign) UIModalPresentationStyle presentationStyle;
@@ -30,6 +30,7 @@
 
 @property (nonatomic, copy) NSArray<NSString *> *supportedOrientations;
 @property (nonatomic, copy) RCTDirectEventBlock onOrientationChange;
+@property (nonatomic, copy) RCTDirectEventBlock onRequestClose;
 
 - (instancetype)initWithBridge:(RCTBridge *)bridge NS_DESIGNATED_INITIALIZER;
 
diff --git a/node_modules/react-native/React/Views/RCTModalHostView.m b/node_modules/react-native/React/Views/RCTModalHostView.m
index 0cfa69a..16a5f1c 100644
--- a/node_modules/react-native/React/Views/RCTModalHostView.m
+++ b/node_modules/react-native/React/Views/RCTModalHostView.m
@@ -35,6 +35,10 @@ - (instancetype)initWithBridge:(RCTBridge *)bridge
     _bridge = bridge;
     _modalViewController = [RCTModalHostViewController new];
     UIView *containerView = [UIView new];
+    // Transparency breaks for overFullScreen in iOS < 13
+    if (@available(iOS 13.0, *)) {
+      _modalViewController.presentationController.delegate = self;
+    }
     containerView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
     _modalViewController.view = containerView;
     _touchHandler = [[RCTTouchHandler alloc] initWithBridge:bridge];
@@ -49,6 +53,11 @@ - (instancetype)initWithBridge:(RCTBridge *)bridge
   return self;
 }
 
+- (void)setOnRequestClose:(RCTDirectEventBlock)onRequestClose
+{
+  _onRequestClose = onRequestClose;
+}
+
 - (void)notifyForBoundsChange:(CGRect)newBounds
 {
   if (_reactSubview && _isPresented) {
@@ -200,4 +209,30 @@ - (UIInterfaceOrientationMask)supportedOrientationsMask
   return supportedOrientations;
 }
 
+// MARK: - UIAdaptivePresentationControllerDelegate -
+// Method must be implemented, otherwise iOS defaults to 'automatic' (pageSheet on >= iOS 13.0)
+- (UIModalPresentationStyle)adaptivePresentationStyleForPresentationController:(UIPresentationController *)controller traitCollection:(UITraitCollection *)traitCollection
+{
+  if (self.presentationStyle == UIModalPresentationFullScreen && self.isTransparent) {
+    return UIModalPresentationOverFullScreen;
+  }
+  return self.presentationStyle;
+}
+
+// Method must be implemented, otherwise iOS defaults to 'automatic' (pageSheet on >= iOS 13.0)
+- (UIModalPresentationStyle)adaptivePresentationStyleForPresentationController:(UIPresentationController *)controller
+{
+  if (self.presentationStyle == UIModalPresentationFullScreen && self.isTransparent) {
+    return UIModalPresentationOverFullScreen;
+  }
+  return self.presentationStyle;
+}
+
+- (void)presentationControllerDidDismiss:(UIPresentationController *)presentationController
+{
+  if (_onRequestClose) {
+    _onRequestClose(nil);
+  }
+}
+
 @end
diff --git a/node_modules/react-native/React/Views/RCTModalHostViewController.m b/node_modules/react-native/React/Views/RCTModalHostViewController.m
index 00c149d..16dbfcc 100644
--- a/node_modules/react-native/React/Views/RCTModalHostViewController.m
+++ b/node_modules/react-native/React/Views/RCTModalHostViewController.m
@@ -22,12 +22,12 @@ - (instancetype)init
     return nil;
   }
 
-#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && defined(__IPHONE_13_0) && \
-    __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_13_0
-  if (@available(iOS 13.0, *)) {
-    self.modalInPresentation = YES;
-  }
-#endif
+//#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && defined(__IPHONE_13_0) && \
+//    __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_13_0
+//  if (@available(iOS 13.0, *)) {
+//    self.modalInPresentation = YES;
+//  }
+//#endif
 
   _preferredStatusBarStyle = [RCTSharedApplication() statusBarStyle];
   _preferredStatusBarHidden = [RCTSharedApplication() isStatusBarHidden];
diff --git a/node_modules/react-native/React/Views/RCTModalHostViewManager.m b/node_modules/react-native/React/Views/RCTModalHostViewManager.m
index 91d83aa..d5ac1d7 100644
--- a/node_modules/react-native/React/Views/RCTModalHostViewManager.m
+++ b/node_modules/react-native/React/Views/RCTModalHostViewManager.m
@@ -120,5 +120,6 @@ - (void)invalidate
 RCT_EXPORT_VIEW_PROPERTY(identifier, NSNumber)
 RCT_EXPORT_VIEW_PROPERTY(supportedOrientations, NSArray)
 RCT_EXPORT_VIEW_PROPERTY(onOrientationChange, RCTDirectEventBlock)
+RCT_EXPORT_VIEW_PROPERTY(onRequestClose, RCTDirectEventBlock)
 
 @end