kdeconnect-kde/plugins/mpriscontrol/mpriscontrolplugin.cpp
Aleix Pol 5c79e8a7a6 Implement an MPRIS client plugin
Makes it possible to control remote MPRIS instances.

REVIEW: 124100
2015-06-18 04:01:01 +02:00

236 lines
9.3 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/>.
*/
#include "mpriscontrolplugin.h"
#include <QDBusArgument>
#include <QDBusConnection>
#include <QDBusInterface>
#include <qdbusconnectioninterface.h>
#include <QDBusReply>
#include <QDBusMessage>
#include <QDBusServiceWatcher>
#include <KPluginFactory>
#include <core/device.h>
#include "mprisdbusinterface.h"
#include "propertiesdbusinterface.h"
K_PLUGIN_FACTORY_WITH_JSON( KdeConnectPluginFactory, "kdeconnect_mpriscontrol.json", registerPlugin< MprisControlPlugin >(); )
Q_LOGGING_CATEGORY(KDECONNECT_PLUGIN_MPRIS, "kdeconnect.plugin.mpris")
MprisControlPlugin::MprisControlPlugin(QObject* parent, const QVariantList& args)
: KdeConnectPlugin(parent, args)
, prevVolume(-1)
{
m_watcher = new QDBusServiceWatcher("org.mpris.MediaPlayer2", QDBusConnection::sessionBus(), QDBusServiceWatcher::WatchForOwnerChange, this);
connect(m_watcher, &QDBusServiceWatcher::serviceRegistered, this, &MprisControlPlugin::addPlayer);
connect(m_watcher, &QDBusServiceWatcher::serviceUnregistered, this, &MprisControlPlugin::removePlayer);
//Add existing interfaces
QStringList interfaces = QDBusConnection::sessionBus().interface()->registeredServiceNames().value();
Q_FOREACH (const QString& iface, interfaces) {
if (iface.startsWith("org.mpris.MediaPlayer2")) {
addPlayer(iface);
}
}
}
void MprisControlPlugin::addPlayer(const QString& service)
{
QDBusInterface mprisInterface(service, "/org/mpris/MediaPlayer2", "org.mpris.MediaPlayer2");
//FIXME: This call hangs and returns an empty string if KDED is still starting!
const QString identity = mprisInterface.property("Identity").toString();
playerList[identity] = service;
qCDebug(KDECONNECT_PLUGIN_MPRIS) << "Mpris addPlayer" << service << "->" << identity;
sendPlayerList();
OrgFreedesktopDBusPropertiesInterface* freedesktopInterface = new OrgFreedesktopDBusPropertiesInterface(service, "/org/mpris/MediaPlayer2", QDBusConnection::sessionBus(), this);
connect(freedesktopInterface, SIGNAL(PropertiesChanged(QString, QVariantMap, QStringList)), this, SLOT(propertiesChanged(QString, QVariantMap)));
OrgMprisMediaPlayer2PlayerInterface* mprisInterface0 = new OrgMprisMediaPlayer2PlayerInterface(service, "/org/mpris/MediaPlayer2", QDBusConnection::sessionBus());
connect(mprisInterface0, SIGNAL(Seeked(qlonglong)), this, SLOT(seeked(qlonglong)));
}
void MprisControlPlugin::seeked(qlonglong position){
//qCDebug(KDECONNECT_PLUGIN_MPRIS) << "Seeked in player";
NetworkPackage np(PACKAGE_TYPE_MPRIS);
np.set("pos", position/1000); //Send milis instead of nanos
OrgFreedesktopDBusPropertiesInterface* interface = (OrgFreedesktopDBusPropertiesInterface*)sender();
const QString& service = interface->service();
const QString& player = playerList.key(service);
np.set("player", player);
sendPackage(np);
}
void MprisControlPlugin::propertiesChanged(const QString& propertyInterface, const QVariantMap& properties)
{
Q_UNUSED(propertyInterface);
NetworkPackage np(PACKAGE_TYPE_MPRIS);
bool somethingToSend = false;
if (properties.contains("Volume")) {
int volume = (int) (properties["Volume"].toDouble()*100);
if (volume != prevVolume) {
np.set("volume",volume);
prevVolume = volume;
somethingToSend = true;
}
}
if (properties.contains("Metadata")) {
QDBusArgument bullshit = qvariant_cast<QDBusArgument>(properties["Metadata"]);
QVariantMap nowPlayingMap;
bullshit >> nowPlayingMap;
if (nowPlayingMap.contains("xesam:title")) {
QString nowPlaying = nowPlayingMap["xesam:title"].toString();
if (nowPlayingMap.contains("xesam:artist")) {
nowPlaying = nowPlayingMap["xesam:artist"].toString() + " - " + nowPlaying;
}
np.set("nowPlaying",nowPlaying);
somethingToSend = true;
}
if (nowPlayingMap.contains("mpris:length")) {
if (nowPlayingMap.contains("mpris:length")) {
long long length = nowPlayingMap["mpris:length"].toLongLong();
np.set("length",length/1000); //milis to nanos
}
somethingToSend = true;
}
}
if (properties.contains("PlaybackStatus")) {
bool playing = (properties["PlaybackStatus"].toString() == "Playing");
np.set("isPlaying", playing);
somethingToSend = true;
}
if (somethingToSend) {
OrgFreedesktopDBusPropertiesInterface* interface = (OrgFreedesktopDBusPropertiesInterface*)sender();
const QString& service = interface->service();
const QString& player = playerList.key(service);
np.set("player", player);
// Always also update the position
OrgMprisMediaPlayer2PlayerInterface mprisInterface(service, "/org/mpris/MediaPlayer2", QDBusConnection::sessionBus());
if (mprisInterface.canSeek()) {
long long pos = mprisInterface.position();
np.set("pos", pos/1000); //Send milis instead of nanos
}
sendPackage(np);
}
}
void MprisControlPlugin::removePlayer(const QString& ifaceName)
{
const QString identity = playerList.key(ifaceName);
qCDebug(KDECONNECT_PLUGIN_MPRIS) << "Mpris removePlayer" << ifaceName << "->" << identity;
playerList.remove(identity);
sendPlayerList();
}
bool MprisControlPlugin::receivePackage (const NetworkPackage& np)
{
if (np.has("playerList")) {
return false; //Whoever sent this is an mpris client and not an mpris control!
}
//Send the player list
const QString player = np.get<QString>("player");
bool valid_player = playerList.contains(player);
if (!valid_player || np.get<bool>("requestPlayerList")) {
sendPlayerList();
if (!valid_player) {
return true;
}
}
//Do something to the mpris interface
OrgMprisMediaPlayer2PlayerInterface mprisInterface(playerList[player], "/org/mpris/MediaPlayer2", QDBusConnection::sessionBus());
if (np.has("action")) {
const QString& action = np.get<QString>("action");
//qCDebug(KDECONNECT_PLUGIN_MPRIS) << "Calling action" << action << "in" << playerList[player];
//TODO: Check for valid actions, currently we trust anything the other end sends us
mprisInterface.call(action);
}
if (np.has("setVolume")) {
double volume = np.get<int>("setVolume")/100.f;
qCDebug(KDECONNECT_PLUGIN_MPRIS) << "Setting volume" << volume << "to" << playerList[player];
mprisInterface.setVolume(volume);
}
if (np.has("Seek")) {
int offset = np.get<int>("Seek");
//qCDebug(KDECONNECT_PLUGIN_MPRIS) << "Seeking" << offset << "to" << playerList[player];
mprisInterface.Seek(offset);
}
if (np.has("SetPosition")){
qlonglong position = np.get<qlonglong>("SetPosition",0)*1000;
qlonglong seek = position - mprisInterface.position();
//qCDebug(KDECONNECT_PLUGIN_MPRIS) << "Setting position by seeking" << seek << "to" << playerList[player];
mprisInterface.Seek(seek);
}
//Send something read from the mpris interface
NetworkPackage answer(PACKAGE_TYPE_MPRIS);
bool somethingToSend = false;
if (np.get<bool>("requestNowPlaying")) {
QVariantMap nowPlayingMap = mprisInterface.metadata();
QString nowPlaying = nowPlayingMap["xesam:title"].toString();
if (nowPlayingMap.contains("xesam:artist")) {
nowPlaying = nowPlayingMap["xesam:artist"].toString() + " - " + nowPlaying;
}if (nowPlayingMap.contains("mpris:length")) {
qlonglong length = nowPlayingMap["mpris:length"].toLongLong();
answer.set("length",length/1000);
}
qlonglong pos = mprisInterface.position();
answer.set("pos", pos/1000);
answer.set("nowPlaying",nowPlaying);
bool playing = (mprisInterface.playbackStatus() == QLatin1String("Playing"));
answer.set("isPlaying", playing);
somethingToSend = true;
}
if (np.get<bool>("requestVolume")) {
int volume = (int)(mprisInterface.volume() * 100);
answer.set("volume",volume);
somethingToSend = true;
}
if (somethingToSend) {
answer.set("player", player);
sendPackage(answer);
}
return true;
}
void MprisControlPlugin::sendPlayerList()
{
NetworkPackage np(PACKAGE_TYPE_MPRIS);
np.set("playerList",playerList.keys());
sendPackage(np);
}
#include "mpriscontrolplugin.moc"