Don't create platform window for QWindows when calling setVisible(false)

We can defer the creation until the window is shown.

Change-Id: I3d5b45ae59ee0925996cf12cd46dd574c8c6ef95
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

1 files changed, 11 insertions, 0 deletions

diff --git a/tests/auto/gui/kernel/qwindow/tst_qwindow.cpp b/tests/auto/gui/kernel/qwindow/tst_qwindow.cpp
index 4fc18be3d2..36ec28de8d 100644
--- a/tests/auto/gui/kernel/qwindow/tst_qwindow.cpp
+++ b/tests/auto/gui/kernel/qwindow/tst_qwindow.cpp
@@ -56,6 +56,7 @@ private slots:
     void create();
     void setParent();
     void setVisible();
+    void setVisibleFalseDoesNotCreateWindow();
     void eventOrderOnShow();
     void resizeEventAfterResize();
     void exposeEventOnShrink_QTBUG54040();
@@ -234,6 +235,16 @@ void tst_QWindow::setVisible()
     QVERIFY(QTest::qWaitForWindowExposed(&i));
 }
 
+void tst_QWindow::setVisibleFalseDoesNotCreateWindow()
+{
+    QWindow w;
+    QVERIFY(!w.handle());
+    w.setVisible(false);
+    QVERIFY2(!w.handle(), "Hiding a non-created window doesn't create it");
+    w.setVisible(true);
+    QVERIFY2(w.handle(), "Showing a non-created window creates it");
+}
+
 void tst_QWindow::mapGlobal()
 {
     QWindow a;