예제 #1
0
// We have the a11y registry on the session bus.
// Subscribe to updates about a11y enabled state.
// Find out the bus address
void DBusConnection::serviceRegistered()
{
    // listen to enabled changes
    QDBusConnection c = QDBusConnection::sessionBus();
    OrgA11yStatusInterface *a11yStatus = new OrgA11yStatusInterface(A11Y_SERVICE, A11Y_PATH, c, this);

    //The variable was introduced because on some embedded platforms there are custom accessibility
    //clients which don't set Status.ScreenReaderEnabled to true. The variable is also useful for
    //debugging.
    static const bool a11yAlwaysOn = qEnvironmentVariableIsSet("QT_LINUX_ACCESSIBILITY_ALWAYS_ON");

    // a11yStatus->isEnabled() returns always true (since Gnome 3.6)
    bool enabled = a11yAlwaysOn || a11yStatus->screenReaderEnabled();

    if (enabled != m_enabled) {
        m_enabled = enabled;
        if (m_a11yConnection.isConnected()) {
            emit enabledChanged(m_enabled);
        } else {
            QDBusConnection c = QDBusConnection::sessionBus();
            QDBusMessage m = QDBusMessage::createMethodCall(QLatin1String("org.a11y.Bus"),
                             QLatin1String("/org/a11y/bus"),
                             QLatin1String("org.a11y.Bus"), QLatin1String("GetAddress"));
            c.callWithCallback(m, this, SLOT(connectA11yBus(QString)), SLOT(dbusError(QDBusError)));
        }
    }

    //    connect(a11yStatus, ); QtDbus doesn't support notifications for property changes yet
}
예제 #2
0
// We have the a11y registry on the session bus.
// Subscribe to updates about a11y enabled state.
// Find out the bus address
void DBusConnection::serviceRegistered()
{
    // listen to enabled changes
    QDBusConnection c = QDBusConnection::sessionBus();
    OrgA11yStatusInterface *a11yStatus = new OrgA11yStatusInterface(A11Y_SERVICE, A11Y_PATH, c, this);

    // a11yStatus->isEnabled() returns always true (since Gnome 3.6)
    bool enabled = a11yStatus->screenReaderEnabled();
    if (enabled != m_enabled) {
        m_enabled = enabled;
        if (m_a11yConnection.isConnected()) {
            emit enabledChanged(m_enabled);
        } else {
            QDBusConnection c = QDBusConnection::sessionBus();
            QDBusMessage m = QDBusMessage::createMethodCall(QLatin1String("org.a11y.Bus"),
                                                            QLatin1String("/org/a11y/bus"),
                                                            QLatin1String("org.a11y.Bus"), QLatin1String("GetAddress"));
            c.callWithCallback(m, this, SLOT(connectA11yBus(QString)), SLOT(dbusError(QDBusError)));
        }
    }

    //    connect(a11yStatus, ); QtDbus doesn't support notifications for property changes yet
}