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/*
* Copyright (C) 2008 Nokia Corporation.
*
* Contact: Marius Vollmer <marius.vollmer@nokia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* version 2.1 as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#ifndef DBUSNAMELISTENER_H
#define DBUSNAMELISTENER_H
#include <QObject>
#include <QString>
#include <QDBusConnection>
#include <QDBusServiceWatcher>
class QDBusPendingCallWatcher;
namespace ContextSubscriber {
class DBusNameListener : public QDBusServiceWatcher
{
Q_OBJECT
public:
enum ServicePresence {NotPresent = 0, Present, Unknown};
explicit DBusNameListener(QDBusConnection::BusType busType, const QString &busName, QObject *parent = 0);
explicit DBusNameListener(const QDBusConnection bus, const QString &busName, QObject *parent = 0);
virtual ~DBusNameListener();
void startListening(bool nameHasOwnerCheck);
ServicePresence isServicePresent() const;
private Q_SLOTS:
void onNameHasOwnerFinished(QDBusPendingCallWatcher* watcher);
void setServicePresent();
void setServiceGone();
private:
void init();
ServicePresence servicePresent; ///< Our current understanding about the service name's state
QDBusConnection::BusType busType; ///< The service bus type we are interested in
QString busName; ///< The service name we are interested in
bool listeningStarted;
QDBusConnection* connection;
Q_SIGNALS:
void nameAppeared();
void nameDisappeared();
};
} // end namespace
#endif
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