workspace/libs/kworkspace/kdisplaymanager.h

   1 /*
   2    Copyright (C) 2004,2005 Oswald Buddenhagen <ossi@kde.org>
   3    Copyright (C) 2005 Stephan Kulow <coolo@kde.org>
   4
   5    This program is free software; you can redistribute it and/or
   6    modify it under the terms of the Lesser GNU General Public
   7    License as published by the Free Software Foundation; either
   8    version 2 of the License, or (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13     General Public License for more details.
  14
  15    You should have received a copy of the Lesser GNU General Public License
  16    along with this program; see the file COPYING.  If not, write to
  17    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18    Boston, MA 02110-1301, USA.
  19 */
  20
  21 #ifndef KDISPLAYMANAGER_H
  22 #define KDISPLAYMANAGER_H
  23
  24 #include "kworkspace.h"
  25 #include <kdemacros.h>
  26 #include <QtCore/QString>
  27 #include <QtCore/QList>
  28 #include <QtCore/QByteArray>
  29
  30 struct KDE_EXPORT SessEnt {
  31         QString display, from, user, session;
  32         int vt;
  33         bool self:1, tty:1;
  34 };
  35
  36 typedef QList<SessEnt> SessList;
  37
  38 class KDE_EXPORT KDisplayManager {
  39
  40 #ifdef Q_WS_X11
  41
  42 public:
  43         KDisplayManager();
  44         ~KDisplayManager();
  45
  46         bool canShutdown();
  47         void shutdown( KWorkSpace::ShutdownType shutdownType,
  48                        KWorkSpace::ShutdownMode shutdownMode,
  49                        const QString &bootOption = QString() );
  50
  51         void setLock( bool on );
  52
  53         bool isSwitchable();
  54         int numReserve();
  55         void startReserve();
  56         bool localSessions( SessList &list );
  57         bool switchVT( int vt );
  58         void lockSwitchVT( int vt );
  59
  60         bool bootOptions( QStringList &opts, int &dflt, int &curr );
  61
  62         static QString sess2Str( const SessEnt &se );
  63         static void sess2Str2( const SessEnt &se, QString &user, QString &loc );
  64
  65 private:
  66         bool exec( const char *cmd, QByteArray &ret );
  67         bool exec( const char *cmd );
  68
  69         void GDMAuthenticate();
  70
  71 #else // Q_WS_X11
  72
  73 public:
  74         KDisplayManager() {}
  75
  76         bool canShutdown() { return false; }
  77         void shutdown( KWorkSpace::ShutdownType shutdownType,
  78                        KWorkSpace::ShutdownMode shutdownMode,
  79                        const QString &bootOption = QString() ) {}
  80
  81         void setLock( bool ) {}
  82
  83         bool isSwitchable() { return false; }
  84         int numReserve() { return -1; }
  85         void startReserve() {}
  86         bool localSessions( SessList &list ) { return false; }
  87         void switchVT( int vt ) {}
  88
  89         bool bootOptions( QStringList &opts, int &dflt, int &curr );
  90
  91 #endif // Q_WS_X11
  92
  93 private:
  94 #ifdef Q_WS_X11
  95     class Private;
  96     Private * const d;
  97 #endif // Q_WS_X11
  98
  99 }; // class KDisplayManager
 100
 101 #endif // KDISPLAYMANAGER_H
 102