bool MiddleClickActionEventFilter::eventFilter(QObject *watched, QEvent *event)
{
    if (event->type() == QEvent::MouseButtonPress
            || event->type() == QEvent::MouseButtonRelease) {
        QMouseEvent *me = static_cast<QMouseEvent *>(event);

        if (me->button() == Qt::MiddleButton) {
            QToolBar *toolBar = qobject_cast<QToolBar *>(watched);

            QAction *action = toolBar->actionAt(me->pos());
            if (action) {
                if (event->type() == QEvent::MouseButtonPress) {
                    m_lastMiddlePressedAction = action;
                } else if (event->type() == QEvent::MouseButtonRelease) {
                    if (m_lastMiddlePressedAction == action) {
                        emit actionMiddleClicked(action);
                    }
                    m_lastMiddlePressedAction = nullptr;
                }
            }
        }
    }

    return QObject::eventFilter(watched, event);
}
void tst_QToolBar::actionGeometry()
{
    QToolBar tb;

    QAction action1(0);
    QAction action2(0);
    QAction action3(0);
    QAction action4(0);

    tb.addAction(&action1);
    tb.addAction(&action2);
    tb.addAction(&action3);
    tb.addAction(&action4);

    tb.show();
#ifdef Q_WS_X11
    qt_x11_wait_for_window_manager(&tb);
#endif

    QList<QToolBarExtension *> extensions = tb.findChildren<QToolBarExtension *>();

    QRect rect01;
    QRect rect02;
    QRect rect03;
    QRect rect04;
    QMenu *popupMenu;

    if (extensions.size() != 0)
    {
        QToolBarExtension *extension = extensions.at(0);
        if (extension->isVisible()) {
            QRect rect0 = extension->geometry();
            QTest::mouseClick( extension, Qt::LeftButton, 0, rect0.center(), -1 );
            QApplication::processEvents();
            popupMenu = qobject_cast<QMenu *>(extension->menu());
            rect01 = popupMenu->actionGeometry(&action1);
            rect02 = popupMenu->actionGeometry(&action2);
            rect03 = popupMenu->actionGeometry(&action3);
            rect04 = popupMenu->actionGeometry(&action4);
        }
    }

    QRect rect1 = tb.actionGeometry(&action1);
    QRect rect2 = tb.actionGeometry(&action2);
    QRect rect3 = tb.actionGeometry(&action3);
    QRect rect4 = tb.actionGeometry(&action4);

    QVERIFY(rect1.isValid());
    QVERIFY(!rect1.isNull());
    QVERIFY(!rect1.isEmpty());

    QVERIFY(rect2.isValid());
    QVERIFY(!rect2.isNull());
    QVERIFY(!rect2.isEmpty());

    QVERIFY(rect3.isValid());
    QVERIFY(!rect3.isNull());
    QVERIFY(!rect3.isEmpty());

    QVERIFY(rect4.isValid());
    QVERIFY(!rect4.isNull());
    QVERIFY(!rect4.isEmpty());

    if (rect01.isValid())
        QCOMPARE(popupMenu->actionAt(rect01.center()), &action1);
    else
        QCOMPARE(tb.actionAt(rect1.center()), &action1);

    if (rect02.isValid())
        QCOMPARE(popupMenu->actionAt(rect02.center()), &action2);
    else
        QCOMPARE(tb.actionAt(rect2.center()), &action2);

    if (rect03.isValid())
        QCOMPARE(popupMenu->actionAt(rect03.center()), &action3);
    else
        QCOMPARE(tb.actionAt(rect3.center()), &action3);

    if (rect04.isValid())
        QCOMPARE(popupMenu->actionAt(rect04.center()), &action4);
    else
        QCOMPARE(tb.actionAt(rect4.center()), &action4);
}