workspace/solid/hal/halsuspendjob.cpp

   1 /*  This file is part of the KDE project
   2     Copyright (C) 2006 Kevin Ottens <ervin@kde.org>
   3
   4     This library is free software; you can redistribute it and/or
   5     modify it under the terms of the GNU Library General Public
   6     License version 2 as published by the Free Software Foundation.
   7
   8     This library is distributed in the hope that it will be useful,
   9     but WITHOUT ANY WARRANTY; without even the implied warranty of
  10     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11     Library General Public License for more details.
  12
  13     You should have received a copy of the GNU Library General Public License
  14     along with this library; see the file COPYING.LIB.  If not, write to
  15     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  16     Boston, MA 02110-1301, USA.
  17
  18 */
  19
  20 #include "halsuspendjob.h"
  21
  22 #include <QtDBus/QDBusMessage>
  23 #include <QTimer>
  24
  25 HalSuspendJob::HalSuspendJob(QDBusInterface &powermanagement,
  26                               Solid::Control::PowerManager::SuspendMethod method,
  27                               Solid::Control::PowerManager::SuspendMethods supported)
  28     : KJob(), m_halPowerManagement(powermanagement)
  29 {
  30     if (supported  & method)
  31     {
  32         switch(method)
  33         {
  34         case Solid::Control::PowerManager::ToRam:
  35             m_dbusMethod = "Suspend";
  36             m_dbusParam = 0;
  37             break;
  38         case Solid::Control::PowerManager::ToDisk:
  39             m_dbusMethod = "Hibernate";
  40             m_dbusParam = -1;
  41             break;
  42         default:
  43             break;
  44         }
  45     }
  46 }
  47
  48 HalSuspendJob::~HalSuspendJob()
  49 {
  50
  51 }
  52
  53 void HalSuspendJob::start()
  54 {
  55     QTimer::singleShot(0, this, SLOT(doStart()));
  56 }
  57
  58 void HalSuspendJob::kill(bool /*quietly */)
  59 {
  60
  61 }
  62
  63 void HalSuspendJob::doStart()
  64 {
  65     if (m_dbusMethod.isEmpty())
  66     {
  67         setError(1);
  68         setErrorText("Unsupported suspend method");
  69         emitResult();
  70         return;
  71     }
  72
  73     QList<QVariant> args;
  74
  75     if (m_dbusParam>=0)
  76     {
  77         args << m_dbusParam;
  78     }
  79
  80     if (!m_halPowerManagement.callWithCallback(m_dbusMethod, args,
  81                                                 this, SLOT(resumeDone(const QDBusMessage &))))
  82     {
  83         setError(1);
  84         setErrorText(m_halPowerManagement.lastError().name()+": "
  85                      +m_halPowerManagement.lastError().message());
  86         emitResult();
  87     }
  88 }
  89
  90
  91 void HalSuspendJob::resumeDone(const QDBusMessage &reply)
  92 {
  93     if (reply.type() == QDBusMessage::ErrorMessage)
  94     {
  95         // We ignore the NoReply error, since we can timeout anyway
  96         // if the computer is suspended for too long.
  97         if (reply.errorName() != "org.freedesktop.DBus.Error.NoReply")
  98         {
  99             setError(1);
 100             setErrorText(reply.errorName()+": "+reply.arguments().at(0).toString());
 101         }
 102     }
 103
 104     emitResult();
 105 }
 106
 107 #include "halsuspendjob.moc"