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/* -*- Mode: C++; indent-tabs-mode: nil; tab-width: 4 -*-
* -*- coding: utf-8 -*-
*
* Copyright (C) 2023 KylinSoft Co., Ltd.
*
* 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 3 of the License, or
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "mpris_player_manager.h"
#include <QDBusConnectionInterface>
#include <QDBusServiceWatcher>
#include <QDBusPendingCall>
#include <QDBusPendingCallWatcher>
#include <QMutex>
#include <QMutexLocker>
#include <QDebug>
class MprisPlayerManagerPrivate : public QObject
{
Q_OBJECT
public:
explicit MprisPlayerManagerPrivate(QObject* parent = nullptr);
~MprisPlayerManagerPrivate(){qDebug() << "MprisPlayerManagerPrivate" << "析构";}
private Q_SLOTS:
void serviceOwnerChanged(const QString &name, const QString &oldOwner, const QString &newOwner);
private:
void addPlayer(const QString& service);
void removePlayer(const QString& service);
public:
QHash<QString, MprisPlayerPtr> m_players;
//service to pid
QHash<QString, uint> m_services;
};
MprisPlayerManager::MprisPlayerManager(QObject *parent)
: QObject(parent)
, d(new MprisPlayerManagerPrivate(this))
{
}
MprisPlayerManager::~MprisPlayerManager()
{
qDebug() << "MprisPlayerManager" << "析构";
}
MprisPlayerWeakPtr MprisPlayerManager::player(const QString &service) const
{
return d->m_players.value(service);
}
MprisPlayerWeakPtr MprisPlayerManager::player(const uint &pid) const
{
return d->m_players.value(d->m_services.key(pid));
}
MprisPlayerWeakPtr MprisPlayerManager::activePlayer()
{
if (d->m_players.count() == 0) {
//如果没有player，构建空对象
return std::make_shared<MprisPlayer>("nullplayer");
}
return d->m_players.begin().value();
}
//private
MprisPlayerManagerPrivate::MprisPlayerManagerPrivate(QObject *parent)
: QObject(parent)
{
#if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0))
auto watcher = new QDBusServiceWatcher(QStringLiteral("org.mpris.MediaPlayer2*"), QDBusConnection::sessionBus(), QDBusServiceWatcher::WatchForOwnerChange, this);
connect(watcher, &QDBusServiceWatcher::serviceOwnerChanged, this, &MprisPlayerManagerPrivate::serviceOwnerChanged);
#else
connect(QDBusConnection::sessionBus().interface(), &QDBusConnectionInterface::serviceOwnerChanged, this, &MprisPlayerManagerPrivate::serviceOwnerChanged);
#endif
//获取列表
QDBusPendingCall async = QDBusConnection::sessionBus().interface()->asyncCall(QStringLiteral("ListNames"));
QDBusPendingCallWatcher *asyncWatcher = new QDBusPendingCallWatcher(async, this);
connect(asyncWatcher, &QDBusPendingCallWatcher::finished, [=](QDBusPendingCallWatcher* watcher){
QDBusPendingReply<QStringList> reply = *watcher;
watcher->deleteLater();
if (reply.isError()) {
//error
qWarning() << "Error message was" << reply.error().name() << reply.error().message();
} else {
for (const QString& serviceName : reply.value()) {
if (serviceName.startsWith(QLatin1String("org.mpris.MediaPlayer2."))) {
addPlayer(serviceName);
qDebug() << serviceName;
}
}
}
});
}
void MprisPlayerManagerPrivate::serviceOwnerChanged(const QString &name, const QString &oldOwner, const QString &newOwner)
{
if (!name.startsWith("org.mpris.MediaPlayer2.")) {
//过滤不符合mpris的seivice
return;
}
if (!oldOwner.isEmpty()) {
//dbus 注销 remove player
removePlayer(name);
}
if (!newOwner.isEmpty()) {
//dbus 注册 add player
addPlayer(name);
qDebug() << "add service" << name;
}
}
void MprisPlayerManagerPrivate::addPlayer(const QString &service)
{
MprisPlayerPtr player = std::make_shared<MprisPlayer>(service);
if (player.get()) {
connect(player.get(), &MprisPlayer::initialFetchFinished, this, [=] () {
disconnect(player.get(), &MprisPlayer::initialFetchFinished, this, nullptr);
//add service pid
m_services.insert(player->objectName(), player->pid());
//add service player
m_players.insert(player->objectName(), player);
});
}
}
void MprisPlayerManagerPrivate::removePlayer(const QString &service)
{
m_players.take(service);
m_services.take(service);
qDebug() << "remove service" << service;
}
#include "mpris_player_manager.moc"
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