Handle screen changes for non-top-level windows

The platform may emit screen changes for child windows before top-level
windows, so we need to update the top level screen as soon as possible.

Change-Id: I090c620725c9c3171f5b038708d78ddfeec8512d
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/gui/kernel/qwindow.cpp b/src/gui/kernel/qwindow.cpp
index 75f63c046f..3d7d22959d 100644
--- a/src/gui/kernel/qwindow.cpp
+++ b/src/gui/kernel/qwindow.cpp
@@ -2605,14 +2605,14 @@ void QWindowPrivate::maybeQuitOnLastWindowClosed()
     }
 }
 
-QWindow *QWindowPrivate::topLevelWindow() const
+QWindow *QWindowPrivate::topLevelWindow(QWindow::AncestorMode mode) const
 {
     Q_Q(const QWindow);
 
     QWindow *window = const_cast<QWindow *>(q);
 
     while (window) {
-        QWindow *parent = window->parent(QWindow::IncludeTransients);
+        QWindow *parent = window->parent(mode);
         if (!parent)
             break;