Differential D10972 Diff 29487 lib/mpris2/mpris2service.cpp

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lib/mpris2/mpris2service.cpp

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		1		/*
		2		Gwenview: an image viewer
		3		Copyright 2018 Friedrich W. H. Kossebau <kossebau@kde.org>
		4
		5		This program is free software; you can redistribute it and/or
		6		modify it under the terms of the GNU General Public License
		7		as published by the Free Software Foundation; either version 2
		8		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
		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 this program; if not, write to the Free Software
		17		Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
		18		*/
		19
		20		#include "mpris2service.h"
		21
		22		// lib
		23		#include "mprismediaplayer2.h"
		24		#include "mprismediaplayer2player.h"
		25		#include <slideshow.h>
		26		// Qt
		27		#include <QDBusConnection>
		28		// std
		29		#include <unistd.h>
		30
		31		namespace Gwenview
		32		{
		33
		34		inline QString mediaPlayer2ObjectPath() { return QStringLiteral("/org/mpris/MediaPlayer2"); }
		35
		36
		37		Mpris2Service::Mpris2Service(SlideShow* slideShow, ContextManager* contextManager,
		38		QAction* toggleSlideShowAction, QAction* fullScreenAction,
		39		QAction* previousAction, QAction* nextAction,
		40		QObject* parent)
		41		: QObject(parent)
		42		{
		43		QDBusConnection sessionBus = QDBusConnection::sessionBus();
		44
		45		// try to register MPRIS presentation object
		46		// to be done before registering the service name, so it is already present
		47		// when controllers react to the service name having appeared
		48		new MprisMediaPlayer2(mediaPlayer2ObjectPath(), fullScreenAction, this);
		49		new MprisMediaPlayer2Player(mediaPlayer2ObjectPath(), slideShow, contextManager,
		50		toggleSlideShowAction, fullScreenAction, previousAction, nextAction, this);
		51
		52		const bool objectRegistered = sessionBus.registerObject(mediaPlayer2ObjectPath(), this, QDBusConnection::ExportAdaptors);
		53
		54		// try to register MPRIS presentation service
		55		if (objectRegistered) {
		56		mMpris2ServiceName = QStringLiteral("org.mpris.MediaPlayer2.Gwenview");
		57
		58		bool serviceRegistered = QDBusConnection::sessionBus().registerService(mMpris2ServiceName);
		59
		60		// Perhaps not the first instance? Try again with another name, as specified by MPRIS2 spec:
		61		if (!serviceRegistered) {
		62		mMpris2ServiceName = mMpris2ServiceName + QLatin1String(".instance") + QString::number(getpid());
		63		serviceRegistered = QDBusConnection::sessionBus().registerService(mMpris2ServiceName);
		64		}
		65		if (!serviceRegistered) {
		66		mMpris2ServiceName.clear();
		67		sessionBus.unregisterObject(mediaPlayer2ObjectPath());
		68		}
		69		}
		70		}
		71
		72
		73		Mpris2Service::~Mpris2Service()
		74		{
		75		if (!mMpris2ServiceName.isEmpty()) {
		76		QDBusConnection sessionBus = QDBusConnection::sessionBus();
		77		sessionBus.unregisterService(mMpris2ServiceName);
		78		sessionBus.unregisterObject(mediaPlayer2ObjectPath());
		79		}
		80		}
		81
		82		}