macOS: Add support for universal links / https uri scheme handling

With this support applications can claim to be handler for
specific https URLs. This requires that an appropriate AASA
(apple-app-site-association) JSON file is hosted and accessible.

One notable usage example is the use of OAuth redirect_uris,
which are often required to use "https" URI scheme.

[ChangeLog][macOS] Added support for https/universal links handling

Task-number: QTBUG-124340
Change-Id: I91c725fcf209b295dc1b2687a52cd0a547aff1c8
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>

1 files changed, 22 insertions, 0 deletions

diff --git a/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm b/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm
index d7f8a1665e..10be0fe658 100644
--- a/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm
+++ b/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm
@@ -334,6 +334,28 @@ QT_USE_NAMESPACE
         [self doesNotRecognizeSelector:invocationSelector];
 }
 
+- (BOOL)application:(NSApplication *)application continueUserActivity:(NSUserActivity *)userActivity
+          restorationHandler:(void(^)(NSArray<id<NSUserActivityRestoring>> *restorableObjects))restorationHandler
+{
+    // Check if eg. user has installed an app delegate capable of handling this
+    if ([reflectionDelegate respondsToSelector:_cmd]
+        && [reflectionDelegate application:application continueUserActivity:userActivity
+                         restorationHandler:restorationHandler] == YES) {
+        return YES;
+    }
+
+    if (!QGuiApplication::instance())
+        return NO;
+
+    if ([userActivity.activityType isEqualToString:NSUserActivityTypeBrowsingWeb]) {
+        QCocoaIntegration *cocoaIntegration = QCocoaIntegration::instance();
+        Q_ASSERT(cocoaIntegration);
+        return cocoaIntegration->services()->handleUrl(QUrl::fromNSURL(userActivity.webpageURL));
+    }
+
+    return NO;
+}
+
 - (void)getUrl:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)replyEvent
 {
     Q_UNUSED(replyEvent);