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/*
* Copyright 2007-2012 Alex Merry <alex.merry@kdemail.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License version 2 as
* published by the Free Software Foundation
*
* 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 Library 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 "mpris2engine.h"
#include <QDBusConnection>
#include <QDBusConnectionInterface>
#include <QDBusPendingCallWatcher>
#include <QDBusPendingReply>
#include <QStringList>
#include "debug.h"
#include "playercontrol.h"
#include "playercontainer.h"
#include "multiplexer.h"
#include "multiplexedservice.h"
Mpris2Engine::Mpris2Engine(QObject* parent,
const QVariantList& args)
: Plasma::DataEngine(parent)
{
Q_UNUSED(args)
connect(QDBusConnection::sessionBus().interface(), &QDBusConnectionInterface::serviceOwnerChanged,
this, &Mpris2Engine::serviceOwnerChanged);
QDBusPendingCall async = QDBusConnection::sessionBus().interface()->asyncCall(QStringLiteral("ListNames"));
QDBusPendingCallWatcher *callWatcher = new QDBusPendingCallWatcher(async, this);
connect(callWatcher, &QDBusPendingCallWatcher::finished,
this, &Mpris2Engine::serviceNameFetchFinished);
}
Plasma::Service* Mpris2Engine::serviceForSource(const QString& source)
{
if (source == Multiplexer::sourceName) {
if (!m_multiplexer) {
createMultiplexer();
}
return new MultiplexedService(m_multiplexer.data(), this);
} else {
PlayerContainer* container = qobject_cast<PlayerContainer*>(containerForSource(source));
if (container) {
return new PlayerControl(container, this);
} else {
return DataEngine::serviceForSource(source);
}
}
}
QStringList Mpris2Engine::sources() const
{
if (m_multiplexer)
return DataEngine::sources();
else
return DataEngine::sources() << Multiplexer::sourceName;
}
void Mpris2Engine::serviceOwnerChanged(
const QString& serviceName,
const QString& oldOwner,
const QString& newOwner)
{
if (!serviceName.startsWith(QLatin1String("org.mpris.MediaPlayer2.")))
return;
QString sourceName = serviceName.mid(23);
if (!oldOwner.isEmpty()) {
qCDebug(MPRIS2) << "MPRIS service" << serviceName << "just went offline";
if (m_multiplexer) {
m_multiplexer.data()->removePlayer(sourceName);
}
removeSource(sourceName);
}
if (!newOwner.isEmpty()) {
qCDebug(MPRIS2) << "MPRIS service" << serviceName << "just came online";
addMediaPlayer(serviceName, sourceName);
}
}
bool Mpris2Engine::updateSourceEvent(const QString& source)
{
if (source == Multiplexer::sourceName) {
return false;
} else {
PlayerContainer *container = qobject_cast<PlayerContainer*>(containerForSource(source));
if (container) {
container->refresh();
return true;
} else {
return false;
}
}
}
bool Mpris2Engine::sourceRequestEvent(const QString& source)
{
if (source == Multiplexer::sourceName) {
createMultiplexer();
return true;
}
return false;
}
void Mpris2Engine::initialFetchFinished(PlayerContainer* container)
{
qCDebug(MPRIS2) << "Props fetch for" << container->objectName() << "finished; adding";
addSource(container);
if (m_multiplexer) {
m_multiplexer.data()->addPlayer(container);
}
// don't let future refreshes trigger this
disconnect(container, &PlayerContainer::initialFetchFinished,
this, &Mpris2Engine::initialFetchFinished);
disconnect(container, &PlayerContainer::initialFetchFailed,
this, &Mpris2Engine::initialFetchFailed);
}
void Mpris2Engine::initialFetchFailed(PlayerContainer* container)
{
qCWarning(MPRIS2) << "Failed to find working MPRIS2 interface for" << container->dbusAddress();
container->deleteLater();
}
void Mpris2Engine::serviceNameFetchFinished(QDBusPendingCallWatcher* watcher)
{
QDBusPendingReply<QStringList> propsReply = *watcher;
watcher->deleteLater();
if (propsReply.isError()) {
qCWarning(MPRIS2) << "Could not get list of available D-Bus services";
} else {
foreach (const QString& serviceName, propsReply.value()) {
if (serviceName.startsWith(QLatin1String("org.mpris.MediaPlayer2."))) {
qCDebug(MPRIS2) << "Found MPRIS2 service" << serviceName;
// watch out for race conditions; the media player could
// have appeared between starting the service watcher and
// this call being dealt with
// NB: _disappearing_ between sending this call and doing
// this processing is fine
QString sourceName = serviceName.mid(23);
PlayerContainer *container = qobject_cast<PlayerContainer*>(containerForSource(sourceName));
if (!container) {
qCDebug(MPRIS2) << "Haven't already seen" << serviceName;
addMediaPlayer(serviceName, sourceName);
}
}
}
}
}
void Mpris2Engine::addMediaPlayer(const QString& serviceName, const QString& sourceName)
{
PlayerContainer *container = new PlayerContainer(serviceName, this);
container->setObjectName(sourceName);
connect(container, &PlayerContainer::initialFetchFinished,
this, &Mpris2Engine::initialFetchFinished);
connect(container, &PlayerContainer::initialFetchFailed,
this, &Mpris2Engine::initialFetchFailed);
}
void Mpris2Engine::createMultiplexer()
{
Q_ASSERT (!m_multiplexer);
m_multiplexer = new Multiplexer(this);
SourceDict dict = containerDict();
SourceDict::const_iterator i = dict.constBegin();
while (i != dict.constEnd()) {
PlayerContainer *container = qobject_cast<PlayerContainer*>(i.value());
m_multiplexer.data()->addPlayer(container);
++i;
}
addSource(m_multiplexer.data());
}
K_EXPORT_PLASMA_DATAENGINE_WITH_JSON(mpris2, Mpris2Engine, "plasma-dataengine-mpris2.json")
#include "mpris2engine.moc"
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