127 lines
4.2 KiB
C++
127 lines
4.2 KiB
C++
/*
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Gwenview: an image viewer
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Copyright 2018 Friedrich W. H. Kossebau <kossebau@kde.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "mpris2service.h"
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// lib
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#include "lockscreenwatcher.h"
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#include "mprismediaplayer2.h"
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#include "mprismediaplayer2player.h"
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#include <slideshow.h>
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// Qt
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#include <QDBusConnection>
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// std
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#include <unistd.h>
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namespace Gwenview
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{
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inline QString mediaPlayer2ObjectPath()
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{
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return QStringLiteral("/org/mpris/MediaPlayer2");
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}
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Mpris2Service::Mpris2Service(SlideShow *slideShow,
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ContextManager *contextManager,
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QAction *toggleSlideShowAction,
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QAction *fullScreenAction,
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QAction *previousAction,
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QAction *nextAction,
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QObject *parent)
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: QObject(parent)
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, m_fullscreenAction(fullScreenAction)
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{
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new MprisMediaPlayer2(mediaPlayer2ObjectPath(), fullScreenAction, this);
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new MprisMediaPlayer2Player(mediaPlayer2ObjectPath(), slideShow, contextManager, toggleSlideShowAction, fullScreenAction, previousAction, nextAction, this);
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// To avoid appearing in the media controller on the lock screen,
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// which might be not expected or wanted for Gwenview,
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// the MPRIS service is unregistered while the lockscreen is active.
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auto lockScreenWatcher = new LockScreenWatcher(this);
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connect(lockScreenWatcher, &LockScreenWatcher::isLockedChanged, this, &Mpris2Service::onLockScreenLockedChanged);
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connect(fullScreenAction, &QAction::toggled, this, &Mpris2Service::onFullScreenActionToggled);
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if (!lockScreenWatcher->isLocked() && fullScreenAction->isChecked()) {
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registerOnDBus();
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}
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}
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Mpris2Service::~Mpris2Service()
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{
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unregisterOnDBus();
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}
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void Mpris2Service::registerOnDBus()
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{
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QDBusConnection sessionBus = QDBusConnection::sessionBus();
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// try to register MPRIS presentation object
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// to be done before registering the service name, so it is already present
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// when controllers react to the service name having appeared
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const bool objectRegistered = sessionBus.registerObject(mediaPlayer2ObjectPath(), this, QDBusConnection::ExportAdaptors);
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// try to register MPRIS presentation service
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if (objectRegistered) {
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mMpris2ServiceName = QStringLiteral("org.mpris.MediaPlayer2.Gwenview");
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bool serviceRegistered = QDBusConnection::sessionBus().registerService(mMpris2ServiceName);
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// Perhaps not the first instance? Try again with another name, as specified by MPRIS2 spec:
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if (!serviceRegistered) {
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mMpris2ServiceName = mMpris2ServiceName + QLatin1String(".instance") + QString::number(getpid());
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serviceRegistered = QDBusConnection::sessionBus().registerService(mMpris2ServiceName);
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}
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if (!serviceRegistered) {
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mMpris2ServiceName.clear();
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sessionBus.unregisterObject(mediaPlayer2ObjectPath());
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}
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}
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}
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void Mpris2Service::unregisterOnDBus()
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{
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if (mMpris2ServiceName.isEmpty()) {
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return;
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}
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QDBusConnection sessionBus = QDBusConnection::sessionBus();
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sessionBus.unregisterService(mMpris2ServiceName);
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sessionBus.unregisterObject(mediaPlayer2ObjectPath());
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}
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void Mpris2Service::onLockScreenLockedChanged(bool isLocked)
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{
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if (isLocked) {
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unregisterOnDBus();
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} else {
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registerOnDBus();
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}
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}
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void Mpris2Service::onFullScreenActionToggled()
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{
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if (m_fullscreenAction->isChecked()) {
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registerOnDBus();
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} else {
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unregisterOnDBus();
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}
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}
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}
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#include "moc_mpris2service.cpp"
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