5400025796
As a result of c956eb8eddb1b3608d7e3d332fbe55df5ec41578 we are now reparenting QWindows managed by QWidgets when the widget itself or any of its parent widgets are reparented. When reparenting a child widget from being a child to a top level, or top level to child, we need to know the new top level state to determine if the QWindow should have a QWindow parent or not. As the window flags of the widget are in flux during the reparenting, we were using the new window flags of the reparented widget to determine this. However, for QWidget children of the widget that's being reparented we can't use the window flags of the reparented widget. We must use the flags of the child itself. These flags are not in flux, so we can use QWidget::windowFlags() directly. Failing to propagate the child widget window flags was causing us to lose the transient parent relationship to its parent QWindow for popup windows. Fixes: QTBUG-127641 Fixes: QTBUG-125149 Task-number: QTBUG-122747 Pick-to: 6.7 6.5 Change-Id: I6dbc5ff5ad019b0f9188516ff3d645e860a9627b Reviewed-by: Axel Spoerl <axel.spoerl@qt.io> Reviewed-by: Volodymyr Zibarov <gogan419@gmail.com> (cherry picked from commit 6c036012b5f2304a05af29f29daa7582603f79ae) Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>