From dca394096fff0f7b48768e047f2b180abf000d12 Mon Sep 17 00:00:00 2001
From: Lars Schmertmann <Lars.Schmertmann@governikus.de>
Date: Fri, 27 Aug 2021 14:07:39 +0200
Subject: [PATCH] Adapt the implementation of QDesktopService on iOS to Android

Change-Id: I8c2048155c5c065b5cdf7ad4cef9d8a446a0561d
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
---
 src/plugins/platforms/ios/qiosservices.mm | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/src/plugins/platforms/ios/qiosservices.mm b/src/plugins/platforms/ios/qiosservices.mm
index 7222bf67937..41c75dcac8f 100644
--- a/src/plugins/platforms/ios/qiosservices.mm
+++ b/src/plugins/platforms/ios/qiosservices.mm
@@ -42,6 +42,7 @@
 #include <QtCore/qurl.h>
 #include <QtCore/qdebug.h>
 #include <QtCore/private/qcore_mac_p.h>
+#include <QtCore/qscopedvaluerollback.h>
 
 #include <QtGui/qdesktopservices.h>
 
@@ -56,6 +57,7 @@ bool QIOSServices::openUrl(const QUrl &url)
         return false;
     }
 
+    // avoid recursing back into self
     if (url == m_handlingUrl)
         return false;
 
@@ -94,16 +96,12 @@ bool QIOSServices::openDocument(const QUrl &url)
 /* Callback from iOS that the application should handle a URL */
 bool QIOSServices::handleUrl(const QUrl &url)
 {
-    QUrl previouslyHandling = m_handlingUrl;
-    m_handlingUrl = url;
+    QScopedValueRollback<QUrl> rollback(m_handlingUrl, url);
 
     // FIXME: Add platform services callback from QDesktopServices::setUrlHandler
     // so that we can warn the user if calling setUrlHandler without also setting
     // up the matching keys in the Info.plist file (CFBundleURLTypes and friends).
-    bool couldHandle = QDesktopServices::openUrl(url);
-
-    m_handlingUrl = previouslyHandling;
-    return couldHandle;
+    return QDesktopServices::openUrl(url);
 }
 
 QT_END_NAMESPACE