/****************************************************************************
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: Nokia Corporation (qt-info@nokia.com)
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** This file is part of the QtMediaServices module of the Qt Toolkit.
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** this package.
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** Foundation and appearing in the file LICENSE.LGPL included in the
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****************************************************************************/

#ifndef QABSTRACTMEDIAOBJECT_H
#define QABSTRACTMEDIAOBJECT_H

#include <QtCore/qobject.h>
#include <QtCore/qstringlist.h>

#include <QtMediaServices/qtmedianamespace.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Multimedia)

class QMediaService;

class QMediaObjectPrivate;
class Q_MULTIMEDIA_EXPORT QMediaObject : public QObject
{
    Q_OBJECT
    Q_PROPERTY(int notifyInterval READ notifyInterval WRITE setNotifyInterval NOTIFY notifyIntervalChanged)
    Q_PROPERTY(bool metaDataAvailable READ isMetaDataAvailable NOTIFY metaDataAvailableChanged)
    Q_PROPERTY(bool metaDataWritable READ isMetaDataWritable NOTIFY metaDataWritableChanged)

public:
    ~QMediaObject();

    virtual bool isAvailable() const;
    virtual QtMediaServices::AvailabilityError availabilityError() const;

    virtual QMediaService* service() const;

    int notifyInterval() const;
    void setNotifyInterval(int milliSeconds);

    virtual void bind(QObject*);
    virtual void unbind(QObject*);

    bool isMetaDataAvailable() const;
    bool isMetaDataWritable() const;

    QVariant metaData(QtMediaServices::MetaData key) const;
    void setMetaData(QtMediaServices::MetaData key, const QVariant &value);
    QList<QtMediaServices::MetaData> availableMetaData() const;

    QVariant extendedMetaData(const QString &key) const;
    void setExtendedMetaData(const QString &key, const QVariant &value);
    QStringList availableExtendedMetaData() const;

Q_SIGNALS:
    void notifyIntervalChanged(int milliSeconds);

    void metaDataAvailableChanged(bool available);
    void metaDataWritableChanged(bool writable);
    void metaDataChanged();

    void availabilityChanged(bool available);

protected:
    QMediaObject(QObject *parent, QMediaService *service);
    QMediaObject(QMediaObjectPrivate &dd, QObject *parent, QMediaService *service);

    void addPropertyWatch(QByteArray const &name);
    void removePropertyWatch(QByteArray const &name);

    QMediaObjectPrivate *d_ptr;

private:
    void setupMetaData();

    Q_DECLARE_PRIVATE(QMediaObject)
    Q_PRIVATE_SLOT(d_func(), void _q_notify())
};

QT_END_NAMESPACE

QT_END_HEADER


#endif  // QABSTRACTMEDIAOBJECT_H