kdeconnect-kde/plugins/mpriscontrol/mpriscontrolplugin.h
Friedrich W. H. Kossebau 72fc67ee05 MPRIS control: do not accumulate interface objects
Summary:
If MPRIS players were appearing and disappearing multiple times, the
OrgFreedesktopDBusPropertiesInterface & OrgMprisMediaPlayer2PlayerInterface
instances created for listening to the signals had been accumulating and
thus resulting in X signals per X restarted player, because the instances
were not deleted when a player disappeared.
Additionally were instances of them created on the fly on the stack in
some of the methods, instead of reusing the existing ones.

This patch changes that by introducing a class MprisPlayer which holds all
data & instances per player. This allows to look up the respective
interfaces instances to reuse them as well as properly controlling their
lifetime.

Test Plan:
Starting and restarting multiple MPRIS players (incl. multiple instances of
the same player app) works as expected as befire. They are listed on the
Android Media control as well as have proper states there when selected.
Additionally no longer multiple change signals are emitted if restarting a
player.

Reviewers: #kde_connect, mtijink

Reviewed By: #kde_connect, mtijink

Subscribers: mtijink

Differential Revision: https://phabricator.kde.org/D11389
2018-03-16 23:53:40 +01:00

86 lines
2.8 KiB
C++

/**
* Copyright 2013 Albert Vaca <albertvaka@gmail.com>
*
* 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) version 3 or any later version
* accepted by the membership of KDE e.V. (or its successor approved
* by the membership of KDE e.V.), which shall act as a proxy
* defined in Section 14 of version 3 of the license.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef MPRISCONTROLPLUGIN_H
#define MPRISCONTROLPLUGIN_H
#include <QString>
#include <QHash>
#include <QLoggingCategory>
#include <QDBusServiceWatcher>
#include <QSharedPointer>
#include <core/kdeconnectplugin.h>
class OrgFreedesktopDBusPropertiesInterface;
class OrgMprisMediaPlayer2PlayerInterface;
class MprisPlayer
{
public:
MprisPlayer(const QString& serviceName, const QString& dbusObjectPath, const QDBusConnection& busConnection);
MprisPlayer() = delete;
public:
const QString& serviceName() const { return m_serviceName; }
OrgFreedesktopDBusPropertiesInterface* propertiesInterface() const { return m_propertiesInterface.data(); }
OrgMprisMediaPlayer2PlayerInterface* mediaPlayer2PlayerInterface() const { return m_mediaPlayer2PlayerInterface.data(); }
private:
QString m_serviceName;
QSharedPointer<OrgFreedesktopDBusPropertiesInterface> m_propertiesInterface;
QSharedPointer<OrgMprisMediaPlayer2PlayerInterface> m_mediaPlayer2PlayerInterface;
};
#define PACKET_TYPE_MPRIS QStringLiteral("kdeconnect.mpris")
Q_DECLARE_LOGGING_CATEGORY(KDECONNECT_PLUGIN_MPRIS)
class MprisControlPlugin
: public KdeConnectPlugin
{
Q_OBJECT
public:
explicit MprisControlPlugin(QObject* parent, const QVariantList& args);
bool receivePacket(const NetworkPacket& np) override;
void connected() override { }
private Q_SLOTS:
void propertiesChanged(const QString& propertyInterface, const QVariantMap& properties);
void seeked(qlonglong);
private:
void serviceOwnerChanged(const QString& serviceName, const QString& oldOwner, const QString& newOwner);
void addPlayer(const QString& serviceName);
void removePlayer(const QString& serviceName);
void sendPlayerList();
void mprisPlayerMetadataToNetworkPacket(NetworkPacket& np, const QVariantMap& nowPlayingMap) const;
QHash<QString, MprisPlayer> playerList;
int prevVolume;
QDBusServiceWatcher* m_watcher;
};
#endif