Add QWindowPrivate::topLevelWindow() helper function

Might be useful to expose to QWindow in 5.3, but for now it's private
so it can be used by platform plugins.

Change-Id: Iad96d7e249a7b85695668f8d7e8918164ec67442
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>

1 files changed, 0 insertions, 17 deletions

diff --git a/src/plugins/platforms/ios/qioswindow.mm b/src/plugins/platforms/ios/qioswindow.mm
index 7a0ff055ec..15a52e89ec 100644
--- a/src/plugins/platforms/ios/qioswindow.mm
+++ b/src/plugins/platforms/ios/qioswindow.mm
@@ -636,23 +636,6 @@ void QIOSWindow::setParent(const QPlatformWindow *parentWindow)
     }
 }
 
-QWindow *QIOSWindow::topLevelWindow() const
-{
-    QWindow *window = this->window();
-    while (window) {
-        QWindow *parent = window->parent();
-        if (!parent)
-            parent = window->transientParent();
-
-        if (!parent)
-            break;
-
-        window = parent;
-    }
-
-    return window;
-}
-
 void QIOSWindow::requestActivateWindow()
 {
     // Note that several windows can be active at the same time if they exist in the same