File indexing completed on 2024-05-12 04:19:46

 /*
 Gwenview: an image viewer
 Copyright 2018 Friedrich W. H. Kossebau <kossebau@kde.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.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
 
 #include "mpris2service.h"
 
 // lib
 #include "lockscreenwatcher.h"
 #include "mprismediaplayer2.h"
 #include "mprismediaplayer2player.h"
 #include <slideshow.h>
 // Qt
 #include <QDBusConnection>
 // std
 #include <unistd.h>
 
 namespace Gwenview
 {
 inline QString mediaPlayer2ObjectPath()
 {
     return QStringLiteral("/org/mpris/MediaPlayer2");
 }
 
 Mpris2Service::Mpris2Service(SlideShow *slideShow,
                              ContextManager *contextManager,
                              QAction *toggleSlideShowAction,
                              QAction *fullScreenAction,
                              QAction *previousAction,
                              QAction *nextAction,
                              QObject *parent)
     : QObject(parent)
     , m_fullscreenAction(fullScreenAction)
 {
     new MprisMediaPlayer2(mediaPlayer2ObjectPath(), fullScreenAction, this);
     new MprisMediaPlayer2Player(mediaPlayer2ObjectPath(), slideShow, contextManager, toggleSlideShowAction, fullScreenAction, previousAction, nextAction, this);
 
     // To avoid appearing in the media controller on the lock screen,
     // which might be not expected or wanted for Gwenview,
     // the MPRIS service is unregistered while the lockscreen is active.
     auto lockScreenWatcher = new LockScreenWatcher(this);
     connect(lockScreenWatcher, &LockScreenWatcher::isLockedChanged, this, &Mpris2Service::onLockScreenLockedChanged);
     connect(fullScreenAction, &QAction::toggled, this, &Mpris2Service::onFullScreenActionToggled);
 
     if (!lockScreenWatcher->isLocked() && fullScreenAction->isChecked()) {
         registerOnDBus();
     }
 }
 
 Mpris2Service::~Mpris2Service()
 {
     unregisterOnDBus();
 }
 
 void Mpris2Service::registerOnDBus()
 {
     QDBusConnection sessionBus = QDBusConnection::sessionBus();
 
     // try to register MPRIS presentation object
     // to be done before registering the service name, so it is already present
     // when controllers react to the service name having appeared
     const bool objectRegistered = sessionBus.registerObject(mediaPlayer2ObjectPath(), this, QDBusConnection::ExportAdaptors);
 
     // try to register MPRIS presentation service
     if (objectRegistered) {
         mMpris2ServiceName = QStringLiteral("org.mpris.MediaPlayer2.Gwenview");
 
         bool serviceRegistered = QDBusConnection::sessionBus().registerService(mMpris2ServiceName);
 
         // Perhaps not the first instance? Try again with another name, as specified by MPRIS2 spec:
         if (!serviceRegistered) {
             mMpris2ServiceName = mMpris2ServiceName + QLatin1String(".instance") + QString::number(getpid());
             serviceRegistered = QDBusConnection::sessionBus().registerService(mMpris2ServiceName);
         }
         if (!serviceRegistered) {
             mMpris2ServiceName.clear();
             sessionBus.unregisterObject(mediaPlayer2ObjectPath());
         }
     }
 }
 
 void Mpris2Service::unregisterOnDBus()
 {
     if (mMpris2ServiceName.isEmpty()) {
         return;
     }
 
     QDBusConnection sessionBus = QDBusConnection::sessionBus();
     sessionBus.unregisterService(mMpris2ServiceName);
     sessionBus.unregisterObject(mediaPlayer2ObjectPath());
 }
 
 void Mpris2Service::onLockScreenLockedChanged(bool isLocked)
 {
     if (isLocked) {
         unregisterOnDBus();
     } else {
         registerOnDBus();
     }
 }
 
 void Mpris2Service::onFullScreenActionToggled()
 {
     if (m_fullscreenAction->isChecked()) {
         registerOnDBus();
     } else {
         unregisterOnDBus();
     }
 }
 }
 
 #include "moc_mpris2service.cpp"