#include <iaupdateobserver.h>

#include <QObject>

class MIAUpdateObserver;

class XQServiceRequest;

class IAUpdateClient : public QObject

//NONSHARABLE_CLASS( IAUpdateClient ) : public QObject

    {

    Q_OBJECT

public:

    enum RequestType

        {

        /**

        * No operation is going on.

        */ 

        NoOperation,       

        /**

        * Update check has been requested.

        */

        CheckUpdates,

        /**

        * Show Update operation has been requested.

        */

        ShowUpdates,     

        /**

        * Update query has been requested.

        */

        UpdateQuery,

        /**

        * Bring to foreground has been requested.

        */

        BroughtToForeground

        };

    IAUpdateClient(MIAUpdateObserver& aObserver);

    ~IAUpdateClient();

    int initRequest(const CIAUpdateParameters* updateParameters, const QString& message, bool toBackground);

    void checkUpdates(const CIAUpdateParameters& updateParameters);

    void showUpdates(const CIAUpdateParameters& updateParameters);

    void updateQuery();

    void update();

    void broughtToForeground();

protected slots:

    void requestCompleted(const QVariant& value);

    void requestError(int err);     

    QString qStringFromTDesC16( const TDesC16& aDes16 ); 

    QString qStringFromTDesC8( const TDesC8& aDes8 );

    QString qStringFromTDesC( const TDesC& aDes );

    XQServiceRequest* mServiceRequest;

    // Informs what kind of operation is going on.

    RequestType mCurrentRequestType;

    // Observer who will be informed about the completion of the operations. 

    MIAUpdateObserver& mObserver;