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- /*
- *
- * $Id: sourceheader,v 1.3 2005/01/19 13:03:46 trueg Exp $
- * Copyright (C) 2005-2007 Sebastian Trueg <trueg@k3b.org>
- *
- * This file is part of the K3b project.
- * Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- * See the file "COPYING" for the exact licensing terms.
- */
-
- #ifndef _K3B_HAL_CONNECTION_H_
- #define _K3B_HAL_CONNECTION_H_
-
- #ifdef HAVE_CONFIG_H
- #include <config.h>
- #endif
-
- #include "k3bdevice_export.h"
-
- #include <qobject.h>
- #include <qmap.h>
- #include <qstringlist.h>
-
- class DBusConnection;
-
-
- namespace K3bDevice {
-
- class Device;
-
- /**
- * This is a simple HAL/DBUS wrapper which creates QT signals whenever a new optical
- * drive is plugged into the system or one is unplugged.
- *
- * The HalConnection class also handles media changes. Whenever a new medium is inserted
- * into a drive or a medium is removed (i.e. ejected) a signal is emitted. This way it
- * is easy to keep track of the inserted media.
- *
- * This class does not deal with K3b devices but with system device names
- * such as /dev/cdrom. These device names can be used in DeviceManager::findDevice().
- */
- class LIBK3BDEVICE_EXPORT HalConnection : public QObject
- {
- Q_OBJECT
-
- public:
- ~HalConnection();
-
- /**
- * Creates a new singleton HalConnection object or returns the already existing one.
- * A newly created HalConnection will emit newDevice signals for all devices in the HAL
- * manager. However, since one cannot be sure if this is the first time the HalConnection
- * is created it is recommended to connect to the signals and query the list of current
- * devices.
- *
- * \return An instance of the singleton HalConnection object.
- */
- static HalConnection* instance();
-
- /**
- * \return true if a connection to the HAL deamon could be established and
- * communication has been set up.
- */
- bool isConnected() const;
-
- /**
- * \return a list of optical devices as reported by HAL.
- */
- QStringList devices() const;
-
- /**
- * \internal
- */
- void addDevice( const char* udi );
-
- /**
- * \internal
- */
- void removeDevice( const char* udi );
-
- /**
- * Error codes named as the HAL deamon raises them
- */
- enum ErrorCodes {
- org_freedesktop_Hal_Success = 0, //*< The operation was successful. This code does not match any in HAL
- org_freedesktop_Hal_CommunicationError, //*< DBus communication error. This code does not match any in HAL
- org_freedesktop_Hal_NoSuchDevice,
- org_freedesktop_Hal_DeviceAlreadyLocked,
- org_freedesktop_Hal_PermissionDenied,
- org_freedesktop_Hal_Device_Volume_NoSuchDevice,
- org_freedesktop_Hal_Device_Volume_PermissionDenied,
- org_freedesktop_Hal_Device_Volume_AlreadyMounted,
- org_freedesktop_Hal_Device_Volume_InvalidMountOption,
- org_freedesktop_Hal_Device_Volume_UnknownFilesystemType,
- org_freedesktop_Hal_Device_Volume_InvalidMountpoint,
- org_freedesktop_Hal_Device_Volume_MountPointNotAvailable,
- org_freedesktop_Hal_Device_Volume_PermissionDeniedByPolicy,
- org_freedesktop_Hal_Device_Volume_InvalidUnmountOption,
- org_freedesktop_Hal_Device_Volume_InvalidEjectOption
- };
-
- public slots:
- /**
- * Lock the device in HAL
- *
- * Be aware that once the method returns the HAL deamon has not necessarily
- * finished the procedure yet.
- *
- * \param dev The device to lock
- * \return An error code
- *
- * \see ErrorCode
- */
- int lock( Device* );
-
- /**
- * Unlock a previously locked device in HAL
- *
- * Be aware that once the method returns the HAL deamon has not necessarily
- * finished the procedure yet.
- *
- * \param dev The device to lock
- * \return An error code
- *
- * \see ErrorCode
- */
- int unlock( Device* );
-
- /**
- * Mounts a device via HAL
- *
- * Be aware that once the method returns the HAL deamon has not necessarily
- * finished the procedure yet.
- *
- * \param dev The device to lock
- * \return An error code
- *
- * \see ErrorCode
- */
- int mount( Device*,
- const QString& mountPoint = QString::null,
- const QString& fstype = QString::null,
- const QStringList& options = QStringList() );
-
- /**
- * Unmounts a device via HAL
- *
- * Be aware that once the method returns the HAL deamon has not necessarily
- * finished the procedure yet.
- *
- * \param dev The device to lock
- * \return An error code
- *
- * \see ErrorCode
- */
- int unmount( Device*,
- const QStringList& options = QStringList() );
-
- /**
- * Unmounts a device via HAL
- *
- * Be aware that once the method returns the HAL deamon has not necessarily
- * finished the procedure yet.
- *
- * \param dev The device to lock
- * \return An error code
- *
- * \see ErrorCode
- */
- int eject( Device*,
- const QStringList& options = QStringList() );
-
- signals:
- /**
- * This signal gets emitted whenever HAL finds a new optical drive.
- *
- * \param dev The block device name of the new drive.
- */
- void deviceAdded( const QString& dev );
-
- /**
- * This signal gets emitted whenever HAL detects that an optical drive
- * has been unplugged.
- *
- * \param dev The block device name of the drive.
- */
- void deviceRemoved( const QString& dev );
-
- /**
- * This signal gets emitted whenever a new medium is inserted into a
- * device or an inserted is removed (i.e. ejected)
- *
- * \param dev The block device name of the drive the medium is or was inserted into.
- */
- void mediumChanged( const QString& dev );
-
- private:
- /**
- * HalConnection is a signelton class. Use the instance() method to create it.
- */
- HalConnection( QObject* parent = 0, const char* name = 0 );
-
- /**
- * Tries to open a connection to HAL.
- */
- bool open();
- void close();
-
- static HalConnection* s_instance;
-
- class Private;
- Private* d;
-
- void setupDBusQtConnection( DBusConnection* dbusConnection );
- };
- }
-
- #endif
-