Method eventFilter

kdevplatform/documentation/standarddocumentationview.cpp:323–365

}

bool StandardDocumentationView::eventFilter(QObject* object, QEvent* event)
{
    Q_D(StandardDocumentationView);

    if (object == d->m_view) {
        /* HACK / Workaround for QTBUG-43602
         * Need to set an eventFilter on the child of WebengineView because it swallows
         * mouse events.
         */
        if (event->type() == QEvent::ChildAdded) {
            QObject* child = static_cast<QChildEvent*>(event)->child();
            if(qobject_cast<QWidget*>(child)) {
                child->installEventFilter(this);
            }
        } else if (event->type() == QEvent::ChildRemoved) {
            QObject* child = static_cast<QChildEvent*>(event)->child();
            if(qobject_cast<QWidget*>(child)) {
                child->removeEventFilter(this);
            }
        }
    }

    if (event->type() == QEvent::Wheel) {
        auto* const wheelEvent = static_cast<QWheelEvent*>(event);
        if (d->m_zoomController && d->m_zoomController->handleWheelEvent(wheelEvent))
            return true;
    } else if (event->type() == QEvent::MouseButtonPress) {
        const auto button = static_cast<QMouseEvent*>(event)->button();
        switch (button) {
        case Qt::MouseButton::ForwardButton:
            emit browseForward();
            event->accept();
            return true;
        case Qt::MouseButton::BackButton:
            emit browseBack();
            event->accept();
            return true;
        default:
            break;
        }
    }
    return QWidget::eventFilter(object, event);
}

void StandardDocumentationView::contextMenuEvent(QContextMenuEvent* event)
{