Method registerObserver

app/plasma/kdevelopsessionswatch/sessionfilestracker.cpp:79–94

void SessionFilesTracker::registerObserver(QObject* observer)
{
    if (!qobject_cast<KDevelopSessionsObserver*>(observer)) {
        return;
    }

    QMutexLocker lock(&m_mutex);
    const bool isFirstObserver = m_observers.isEmpty();

    m_observers.append(observer);
    setSessionDataList(observer, m_sessionDataList);

    if (isFirstObserver) {
        m_dirWatch->startScan(true);
    }
}

void SessionFilesTracker::unregisterObserver(QObject* observer)
{