A QDialogButtonBox with the first accept button becoming default, didn't
explicitly set focus on such a button in a QDialog.
d44413d526 implemented this missing
functionality. It set focus to the automatic default button, unless the
QDialog had a focusWidget() set.
That has caused a regression, in cases where
- the QDialog has a QWidget child with a Qt::StrongFocus policy, and
- the QDialog is not yet visible, so focusWidget() returns nullptr.
Amend d44413d526ec12ed83acd7343c2005782178c7ad:
Implement a helper in QWidgetPrivate, that returns true, if a child
with a given focus policy is found.
Do not set focus to a QDialogButtonBox's automatic default button, when
- not located inside a QDialog, or
- a focusWidget() exists, or
- the dialog has QWidget child with Qt::StrongFocus, that is not a
child of the QDialogButtonBox.
Add an autotest function.
Pick-to: 6.7 6.6 6.5
Fixes: QTBUG-121514
Fixes: QTBUG-120049
Change-Id: I3c65ae36b56657f9af4a3a4b42f9b66e8bc5c534
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
78a3301372