unipresent/okular/UpOkProcess.cpp

   1 /***************************************************************************
   2  *   This file is part of KWorship.                                        *
   3  *   Copyright 2008-2009 James Hogan <james@albanarts.com>                 *
   4  *                                                                         *
   5  *   KWorship is free software: you can redistribute it and/or modify      *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation, either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   KWorship 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         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with KWorship.  If not, write to the Free Software Foundation,  *
  17  *   Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.   *
  18  ***************************************************************************/
  19
  20 /**
  21  * @file UpOkProcess.cpp
  22  * @brief Okular process.
  23  * @author James Hogan <james@albanarts.com>
  24  */
  25
  26 #include "UpOkProcess.h"
  27 #include "UpOkPresentation.h"
  28 #include "UpOkBackend.h"
  29
  30 #include "compiler.h"
  31
  32 #include <QDBusConnection>
  33 #include <QDBusInterface>
  34 #include <QDBusReply>
  35 #include <QStringList>
  36
  37 /*
  38  * Constructors + destructor
  39  */
  40
  41 /// Primary constructor.
  42 UpOkProcess::UpOkProcess(QString serviceName, UpOkBackend* parent)
  43 : QObject(parent)
  44 , m_backend(parent)
  45 , m_serviceName(serviceName)
  46 {
  47   // Get the current document
  48   QDBusInterface application(m_serviceName, "/okular", "org.kde.okular");
  49   if (application.isValid())
  50   {
  51     QString doc = application.call("currentDocument").arguments().first().toString();
  52     dbusPresentationOpened(doc);
  53   }
  54 }
  55
  56 /// Destructor.
  57 UpOkProcess::~UpOkProcess()
  58 {
  59   foreach (UpOkPresentation* pres, m_presentations)
  60   {
  61     unloadedPresentation(pres);
  62     delete pres;
  63   }
  64 }
  65
  66 /*
  67  * Basic accessors
  68  */
  69
  70 /// Get the service name.
  71 QString UpOkProcess::serviceName() const
  72 {
  73   return m_serviceName;
  74 }
  75
  76 /// Get a list of presentations.
  77 QList<UpOkPresentation*> UpOkProcess::presentations()
  78 {
  79   return m_presentations.values();
  80 }
  81
  82 /*
  83  * Private slots
  84  */
  85
  86 /// Indicates that a new presentation has been made available.
  87 void UpOkProcess::dbusPresentationOpened(QString docName)
  88 {
  89   Q_ASSERT(!docName.isEmpty());
  90   StringHashPresentation::iterator it = m_presentations.find(docName);
  91   if (likely(m_presentations.end() == it))
  92   {
  93     UpOkPresentation* pres = new UpOkPresentation(m_serviceName, m_backend, this);
  94     m_presentations[docName] = pres;
  95     loadedPresentation(pres);
  96   }
  97 }
  98
  99 /// Indicates that an old presentation is no longer available.
 100 void UpOkProcess::dbusPresentationClosed(QString docName)
 101 {
 102   Q_ASSERT(!docName.isEmpty());
 103   StringHashPresentation::iterator it = m_presentations.find(docName);
 104   if (likely(m_presentations.end() != it))
 105   {
 106     UpOkPresentation* presentation = *it;
 107     m_presentations.erase(it);
 108     unloadedPresentation(presentation);
 109     delete presentation;
 110   }
 111 }
 112