diff options
| author | Volker Hilsheimer <volker.hilsheimer@qt.io> | 2023-09-11 13:42:25 +0200 |
|---|---|---|
| committer | Qt Cherry-pick Bot <cherrypick_bot@qt-project.org> | 2023-09-22 15:13:22 +0000 |
| commit | 61365249a47d6ffa9f848eb0a1a583e13cac8803 (patch) | |
| tree | b7204548041f9e11b32fdeb53bb173344fef4e51 | |
| parent | 14319e54f3fdf981695cae5b2319195cfd1060ef (diff) | |
Block signals while the meta object gets created
If a COM object emits events and calls QAxEventSink::Invoke while the
metaobject is getting constructed, then we might end up with accessing
incomplete initialized meta object data when mapping the Invoke call to
the corresponding Qt signal.
Use a QSignalBlocker while we are generating the meta object, so that
the QAxEventSink::Invoke and OnChanged implementations exit early.
Pick-to: 5.15
Fixes: QTBUG-100657
Fixes: QTBUG-96871
Change-Id: If9368ee878bbe56e2fb61ce251383841191b3a6d
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Jøger Hansegård <joger.hansegard@qt.io>
Reviewed-by: Pavel Dubsky <pavel.dubsky@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Wladimir Leuschner <wladimir.leuschner@qt.io>
(cherry picked from commit 690770d8e6c61b8e3834a19e95e3fd816f842182)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit c758be532150d33fe840a99325fe10df2e9efaf8)
| -rw-r--r-- | src/activeqt/container/qaxbase.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/activeqt/container/qaxbase.cpp b/src/activeqt/container/qaxbase.cpp index 5ba59c3..3463f3c 100644 --- a/src/activeqt/container/qaxbase.cpp +++ b/src/activeqt/container/qaxbase.cpp @@ -2945,6 +2945,7 @@ void MetaObjectGenerator::buildMethods(const QMap<QByteArray, Method> &map, QMetaObject *MetaObjectGenerator::metaObject(const QMetaObject *parentObject, const QByteArray &className) { + QSignalBlocker blockSignals(that ? that->qObject() : nullptr); if (that) { readClassInfo(); if (typelib) { |