diff options
Diffstat (limited to 'src/widgets/widgets/qdialogbuttonbox.cpp')
-rw-r--r-- | src/widgets/widgets/qdialogbuttonbox.cpp | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/widgets/widgets/qdialogbuttonbox.cpp b/src/widgets/widgets/qdialogbuttonbox.cpp index 237eb775b9..3e8c08f923 100644 --- a/src/widgets/widgets/qdialogbuttonbox.cpp +++ b/src/widgets/widgets/qdialogbuttonbox.cpp @@ -852,9 +852,19 @@ void QDialogButtonBoxPrivate::_q_handleButtonClicked() { Q_Q(QDialogButtonBox); if (QAbstractButton *button = qobject_cast<QAbstractButton *>(q->sender())) { + // Can't fetch this *after* emitting clicked, as clicked may destroy the button + // or change its role. Now changing the role is not possible yet, but arguably + // both clicked and accepted/rejected/etc. should be emitted "atomically" + // depending on whatever role the button had at the time of the click. + const QDialogButtonBox::ButtonRole buttonRole = q->buttonRole(button); + QPointer<QDialogButtonBox> guard(q); + emit q->clicked(button); - switch (q->buttonRole(button)) { + if (!guard) + return; + + switch (buttonRole) { case QPlatformDialogHelper::AcceptRole: case QPlatformDialogHelper::YesRole: emit q->accepted(); |