Disable navigation on back/forward mouse buttons in Qt 5

Submodule src/3rdparty 809e16e4..840c8e5f:
  > Make navigation on back/forward mouse buttons optional

Change-Id: I191f7781cf9b824b743b80a05a3e819a414ee546
Reviewed-by: Michael Brüning <michael.bruning@qt.io>

3 files changed, 10 insertions, 0 deletions

diff --git a/src/3rdparty b/src/3rdparty
-Subproject 809e16e4ac75c0d7eb39cef6a2d29544971b8d3
+Subproject 840c8e5faabf27e8874cd1152454c113597bb3e
diff --git a/src/core/web_contents_delegate_qt.cpp b/src/core/web_contents_delegate_qt.cpp
index 54ae4937a..f13621b99 100644
--- a/src/core/web_contents_delegate_qt.cpp
+++ b/src/core/web_contents_delegate_qt.cpp
@@ -807,6 +807,15 @@ void WebContentsDelegateQt::ContentsZoomChange(bool zoom_in)
         adapter->setZoomFactor(adapter->currentZoomFactor() - 0.1f);
 }
 
+bool WebContentsDelegateQt::ShouldNavigateOnBackForwardMouseButtons()
+{
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
+    return false;
+#else
+    return true;
+#endif
+}
+
 FaviconManager *WebContentsDelegateQt::faviconManager()
 {
     return m_faviconManager.data();
diff --git a/src/core/web_contents_delegate_qt.h b/src/core/web_contents_delegate_qt.h
index bfef9a1df..8a9d8be1b 100644
--- a/src/core/web_contents_delegate_qt.h
+++ b/src/core/web_contents_delegate_qt.h
@@ -168,6 +168,7 @@ public:
     void OnVisibilityChanged(content::Visibility visibility) override;
     void DidFirstVisuallyNonEmptyPaint() override;
     void ActivateContents(content::WebContents* contents) override;
+    bool ShouldNavigateOnBackForwardMouseButtons() override;
 
     void didFailLoad(const QUrl &url, int errorCode, const QString &errorDescription);
     void overrideWebPreferences(content::WebContents *, content::WebPreferences*);