From bdbb1df44c57c9427149b40294f082abe1f466ce Mon Sep 17 00:00:00 2001
From: jcesarmobile <jcesarmobile@gmail.com>
Date: Mon, 22 Jun 2020 11:44:39 +0200
Subject: [PATCH] fix(ios): exit event not fired on swipe down (#737)

---
 src/ios/CDVWKInAppBrowser.h | 2 +-
 src/ios/CDVWKInAppBrowser.m | 7 ++++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/ios/CDVWKInAppBrowser.h b/src/ios/CDVWKInAppBrowser.h
index e339be1..2f650b8 100644
--- a/src/ios/CDVWKInAppBrowser.h
+++ b/src/ios/CDVWKInAppBrowser.h
@@ -49,7 +49,7 @@
 
 @end
 
-@interface CDVWKInAppBrowserViewController : UIViewController <CDVScreenOrientationDelegate,WKNavigationDelegate,WKUIDelegate,WKScriptMessageHandler>{
+@interface CDVWKInAppBrowserViewController : UIViewController <CDVScreenOrientationDelegate,WKNavigationDelegate,WKUIDelegate,WKScriptMessageHandler,UIAdaptivePresentationControllerDelegate>{
     @private
     CDVInAppBrowserOptions *_browserOptions;
     NSDictionary *_settings;
diff --git a/src/ios/CDVWKInAppBrowser.m b/src/ios/CDVWKInAppBrowser.m
index 1ec2065..64fae78 100644
--- a/src/ios/CDVWKInAppBrowser.m
+++ b/src/ios/CDVWKInAppBrowser.m
@@ -290,6 +290,7 @@ static CDVWKInAppBrowser* instance = nil;
     nav.orientationDelegate = self.inAppBrowserViewController;
     nav.navigationBarHidden = YES;
     nav.modalPresentationStyle = self.inAppBrowserViewController.modalPresentationStyle;
+    nav.presentationController.delegate = self.inAppBrowserViewController;
     
     __weak CDVWKInAppBrowser* weakSelf = self;
     
@@ -306,7 +307,6 @@ static CDVWKInAppBrowser* instance = nil;
                 strongSelf->tmpWindow = [[UIWindow alloc] initWithFrame:frame];
             }
             UIViewController *tmpController = [[UIViewController alloc] init];
-
             [strongSelf->tmpWindow setRootViewController:tmpController];
             [strongSelf->tmpWindow setWindowLevel:UIWindowLevelNormal];
 
@@ -1257,5 +1257,10 @@ BOOL isExiting = FALSE;
     [super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];
 }
 
+#pragma mark UIAdaptivePresentationControllerDelegate
+
+- (void)presentationControllerWillDismiss:(UIPresentationController *)presentationController {
+    isExiting = TRUE;
+}
 
 @end //CDVWKInAppBrowserViewController