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Viewing changes to plugins/nowlistening/nlmpris2.cpp

  • Committer: Package Import Robot
  • Author(s): Jonathan Riddell
  • Date: 2013-06-21 02:22:39 UTC
  • Revision ID: package-import@ubuntu.com-20130621022239-63l3zc8p0nf26pt6
Tags: upstream-4.10.80
Import upstream version 4.10.80

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plugins/nowlistening/nlmpris2.cpp
 
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/*
 
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        nlmpris2.cpp
 
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    Kopete Now Listening To plugin
 
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    Copyright (c) 2012 by Volker Härtel <cyberbeat@gmx.de>
 
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    Kopete (c) 2002,2003 by the Kopete developers  <kopete-devel@kde.org>
 
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        Purpose:
 
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        This class abstracts the interface to mpris by
 
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        implementing NLMediaPlayer
 
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    *************************************************************************
 
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    *                                                                       *
 
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    * This program is free software; you can redistribute it and/or modify  *
 
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    * it under the terms of the GNU General Public License as published by  *
 
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    * the Free Software Foundation; either version 2 of the License, or     *
 
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    * (at your option) any later version.                                   *
 
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    *                                                                       *
 
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    *************************************************************************
 
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*/
 
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#include <kdebug.h>
 
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#include <QtDBus/QtDBus>
 
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#include "nlmpris2.h"
 
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NLmpris2::NLmpris2() : NLMediaPlayer()
 
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{
 
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        m_type = Audio;
 
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        m_name = "MPRIS2 compatible player";
 
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        m_client = 0;
 
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}
 
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NLmpris2::~NLmpris2()
 
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{
 
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        delete m_client;
 
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}
 
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void NLmpris2::update()
 
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{
 
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        m_playing = false;
 
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        if( m_client == 0 || !m_client->isValid() ) {
 
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                QStringList services;
 
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                const QDBusConnection& sessionConn( QDBusConnection::sessionBus() );
 
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                // Check if the connection is successful
 
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                if( sessionConn.isConnected() )
 
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                {
 
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                        const QDBusConnectionInterface* bus = sessionConn.interface();
 
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                        const QDBusReply<QStringList>& reply( bus->registeredServiceNames() );
 
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                        if( reply.isValid() )
 
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                        {
 
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                                // Search for "org.mpris.MediaPlayer2" string
 
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                                services = reply.value().filter( "org.mpris.MediaPlayer2" );
 
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                        }
 
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                }
 
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                // If no service was found then return false and unlock the mutex
 
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                if( services.isEmpty() )
 
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                {
 
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                        return;
 
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                }
 
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                // Start the d-bus interface, needed to check the application status and make calls to it
 
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                if ( m_client != 0 ){
 
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                        delete m_client;
 
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                        m_client = 0;
 
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                }
 
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                m_client = new QDBusInterface( services.at(0), "/org/mpris/MediaPlayer2", "org.freedesktop.DBus.Properties" );
 
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                QDBusInterface dbusMprisRoot ( services.at(0), "/org/mpris/MediaPlayer2", "org.mpris.MediaPlayer2");
 
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                // See if the application is registered.
 
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                if( !m_client->isValid() )
 
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                {
 
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                        return;
 
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                }
 
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                if ( !dbusMprisRoot.isValid() )
 
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                {
 
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                        m_name = QString( "MPRIS2 compatible player" );
 
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                }
 
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                else
 
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                {
 
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                        m_name = dbusMprisRoot.property( "Identity" ).toString();
 
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                }
 
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        }
 
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        // see if it's playing
 
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        QDBusReply <QVariant> mprisStatus = m_client->call ( "Get", "org.mpris.MediaPlayer2.Player", "PlaybackStatus" );
 
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        if (!mprisStatus.isValid())
 
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        {
 
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                return;
 
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        }
 
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        m_playing = ( mprisStatus.value().toString() == "Playing" );
 
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        QDBusReply<QVariant> metaDataReply = m_client->call( "Get", "org.mpris.MediaPlayer2.Player", "Metadata" );
 
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        if ( !metaDataReply.isValid() )
 
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        {
 
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                return;
 
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        }
 
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        if ( !metaDataReply.value().canConvert<QDBusArgument>() )
 
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                return;
 
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        QVariantMap metaData;
 
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        QDBusArgument arg = metaDataReply.value().value<QDBusArgument>();
 
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        arg >> metaData;
 
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        // Fetch title
 
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        const QString newTrack = metaData["xesam:title"].toString();
 
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        if ( newTrack != m_track )
 
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        {
 
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                m_newTrack = true;
 
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                m_track = newTrack;
 
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        }
 
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        // Fetch album
 
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        m_album = metaData["xesam:album"].toString();
 
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        // Fetch artist
 
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        m_artist = metaData["xesam:artist"].toString();
 
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}