127 lines
4.2 KiB
C++

/*
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"