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** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
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****************************************************************************/

#ifndef S60MEDIAPLAYERSESSION_H
#define S60MEDIAPLAYERSESSION_H

#include <QtCore/qobject.h>
#include <QtCore/qurl.h>
#include <QtCore/qpair.h>
#include <qmediaplayer.h>
#include <e32cmn.h> // for TDesC
#include <QRect>
#include "s60mediaplayerservice.h"


_LIT( KSeekable, "Seekable" );
_LIT( KFalse, "0");

QT_BEGIN_NAMESPACE
class QMediaTimeRange;
QT_END_NAMESPACE

class QTimer;

class S60MediaPlayerSession : public QObject
{
    Q_OBJECT

public:
    S60MediaPlayerSession(QObject *parent);
    virtual ~S60MediaPlayerSession();

    // for player control interface to use
    QMediaPlayer::State state() const;
    QMediaPlayer::MediaStatus mediaStatus() const;
    qint64 duration() const;
    qint64 position() const;
    void setPosition(qint64 pos);
    int volume() const;
    void setVolume(int volume);
    bool isMuted() const;
    void setMuted(bool muted);
    virtual bool isVideoAvailable() = 0;
    virtual bool isAudioAvailable() = 0;
    bool isSeekable() const;
    void play();
    void pause();
    void stop();
    void reset();
    bool isMetadataAvailable() const; 
    QVariant metaData(const QString &key) const;
    QVariant metaData(QtMultimediaKit::MetaData key) const;
    QList<QtMultimediaKit::MetaData> availableMetaData() const;
    QStringList availableExtendedMetaData() const;
    QString metaDataKeyAsString(QtMultimediaKit::MetaData key) const;
    void load(const QMediaContent source);
    int bufferStatus();
    virtual void setVideoRenderer(QObject *renderer);
    void setMediaStatus(QMediaPlayer::MediaStatus);
    void setState(QMediaPlayer::State state);
    void setAudioEndpoint(const QString& audioEndpoint);
    virtual void setPlaybackRate(qreal rate) = 0;
    virtual bool getIsSeekable() const { return ETrue; }
    TBool isStreaming();

protected:
    virtual void doLoadL(const TDesC &path) = 0;
    virtual void doLoadUrlL(const TDesC &path) = 0;
    virtual void doPlay() = 0;
    virtual void doStop() = 0;
    virtual void doClose() = 0;
    virtual void doPauseL() = 0;
    virtual void doSetVolumeL(int volume) = 0;
    virtual void doSetPositionL(qint64 microSeconds) = 0;
    virtual qint64 doGetPositionL() const = 0;
    virtual void updateMetaDataEntriesL() = 0;
    virtual int doGetBufferStatusL() const = 0;
    virtual qint64 doGetDurationL() const = 0;
    virtual void doSetAudioEndpoint(const QString& audioEndpoint) = 0;

public:
    // From S60MediaPlayerAudioEndpointSelector
    virtual QString activeEndpoint() const = 0;
    virtual QString defaultEndpoint() const = 0;
public Q_SLOTS:
    virtual void setActiveEndpoint(const QString& name) = 0;

protected:
    int error() const;
    void setError(int error,  const QString &errorString = QString(), bool forceReset = false);
    void setAndEmitError(int error);
    void loaded();
    void buffering();
    void buffered();
    void endOfMedia();
    QMap<QString, QVariant>& metaDataEntries();
    QMediaPlayer::Error fromSymbianErrorToMultimediaError(int error);
    void startProgressTimer();
    void stopProgressTimer();
    void startStalledTimer();
    void stopStalledTimer();
    QString TDesC2QString(const TDesC& aDescriptor);
	TPtrC QString2TPtrC( const QString& string );
	QRect TRect2QRect(const TRect& tr);
	TRect QRect2TRect(const QRect& qr);

protected slots:
    void tick();
    void stalled();
    
signals:
    void durationChanged(qint64 duration);
    void positionChanged(qint64 position);
    void stateChanged(QMediaPlayer::State state);
    void mediaStatusChanged(QMediaPlayer::MediaStatus mediaStatus);
    void videoAvailableChanged(bool videoAvailable);    
    void audioAvailableChanged(bool audioAvailable);
    void bufferStatusChanged(int percentFilled);
    void seekableChanged(bool);     
    void availablePlaybackRangesChanged(const QMediaTimeRange&);
    void metaDataChanged();
    void error(int error, const QString &errorString);
    void activeEndpointChanged(const QString &name);
    void mediaChanged();
    void playbackRateChanged(qreal rate);
    void volumeChanged(int volume);
    void mutedChanged(bool muted);

protected:
    QUrl m_UrlPath;
    bool m_stream;
    QMediaContent m_source;

private:
    qreal m_playbackRate;
    QMap<QString, QVariant> m_metaDataMap;
    bool m_muted;
    int m_volume;
    QMediaPlayer::State m_state;
    QMediaPlayer::MediaStatus m_mediaStatus;
    QTimer *m_progressTimer;
    QTimer *m_stalledTimer;
    int m_error;    
    bool m_play_requested;
    bool m_seekable;
    qint64 m_duration;
};

#endif