workspace/plasma/dataengines/nowplaying/playerinterface/dbuswatcher.h

   1 /*
   2  * Copyright 2008  Alex Merry <alex.merry@kdemail.net>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #ifndef DBUSWATCHER_H
  19 #define DBUSWATCHER_H
  20
  21 #include <QObject>
  22 #include <QHash>
  23 #include <QString>
  24
  25 #include "player.h"
  26
  27 class QDBusConnectionInterface;
  28 class DBusPlayerFactory;
  29
  30 class DBusWatcher : public QObject
  31 {
  32     Q_OBJECT
  33
  34 public:
  35     DBusWatcher(QObject* parent = 0);
  36
  37     QList<Player::Ptr> players();
  38
  39     /**
  40      * Adds a service to watch for.
  41      *
  42      * @param factory the factory for the player
  43      */
  44     void addFactory(DBusPlayerFactory* factory);
  45
  46 Q_SIGNALS:
  47     /**
  48      * A new service appeared on D-Bus
  49      */
  50     void newPlayer(Player::Ptr player);
  51     /**
  52      * A player disappeared from D-Bus
  53      *
  54      * @param player the now-invalid player
  55      */
  56     void playerDisappeared(Player::Ptr player);
  57
  58 private Q_SLOTS:
  59     void serviceChange(const QString& name,
  60                        const QString& oldOwner,
  61                        const QString& newOwner);
  62
  63 private:
  64     QList<DBusPlayerFactory*> m_factories;
  65     QHash<QString,Player::Ptr> m_players;
  66     QDBusConnectionInterface* m_bus;
  67 };
  68
  69 #endif // DBUSWATCHER_H