/***************************************************************************
 * copyright            : (C) 2008 Daniel Jones <danielcjones@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 DYNAMICTRACKNAVIGATOR_H
#define DYNAMICTRACKNAVIGATOR_H

#include "dynamic/DynamicPlaylist.h"
#include "StandardTrackNavigator.h"

#include <QMutex>


namespace Playlist
{

    /**
     * A navigator that implements 'dynamic mode', which is a never-ending queue of tracks.
     */
    class DynamicTrackNavigator : public StandardTrackNavigator
    {
        Q_OBJECT

        public:
            DynamicTrackNavigator( Dynamic::DynamicPlaylistPtr p ) ;
            ~DynamicTrackNavigator();

        public slots:
            void repopulate();

        private slots:
            void activePlaylistChanged();
            void receiveTracks( Meta::TrackList );
            void trackChanged();

        private:
            void appendUpcoming();
            void removePlayed();

            bool m_waitingForNext;
            bool m_waitingForUserNext;

            bool m_abortRequested;

            Dynamic::DynamicPlaylistPtr m_playlist;

            QMutex m_mutex;
    };
}

#endif
