diff options
Diffstat (limited to 'src/quick/items/qquickevents.cpp')
| -rw-r--r-- | src/quick/items/qquickevents.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/quick/items/qquickevents.cpp b/src/quick/items/qquickevents.cpp index 86d1ddac6c..2fad9f5a8d 100644 --- a/src/quick/items/qquickevents.cpp +++ b/src/quick/items/qquickevents.cpp @@ -46,6 +46,7 @@ QT_BEGIN_NAMESPACE Q_LOGGING_CATEGORY(lcPointerEvents, "qt.quick.pointer.events") +Q_LOGGING_CATEGORY(lcPointerGrab, "qt.quick.pointer.grab") /*! \qmltype KeyEvent @@ -523,6 +524,14 @@ QQuickItem *QQuickEventPoint::grabber() const void QQuickEventPoint::setGrabber(QQuickItem *grabber) { + if (Q_UNLIKELY(lcPointerGrab().isDebugEnabled()) && m_grabber.data() != grabber) { + auto device = static_cast<const QQuickPointerEvent *>(parent())->device(); + static const QMetaEnum stateMetaEnum = metaObject()->enumerator(metaObject()->indexOfEnumerator("State")); + QString deviceName = (device ? device->name() : QLatin1String("null device")); + deviceName.resize(16, ' '); // shorten, and align in case of sequential output + qCDebug(lcPointerGrab) << deviceName << "point" << hex << m_pointId << stateMetaEnum.valueToKey(state()) + << ": grab" << m_grabber << "->" << grabber; + } m_grabber = QPointer<QQuickItem>(grabber); } |