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#ifndef NEARFIELDTAGIMPLCOMMON_SYMBIAN_H
#define NEARFIELDTAGIMPLCOMMON_SYMBIAN_H

#include <qnearfieldtarget.h>
#include <qnearfieldtarget_p.h>
#include "nearfieldtag_symbian.h"
#include "nearfieldndeftarget_symbian.h"
#include "nearfieldutility_symbian.h"
#include "nearfieldtagasyncrequest_symbian.h"

#include "nearfieldtagoperationcallback_symbian.h"
#include "nearfieldtagndefoperationcallback_symbian.h"

#include "nearfieldtagndefrequest_symbian.h"
#include "nearfieldtagcommandrequest_symbian.h"
#include "nearfieldtagcommandsrequest_symbian.h"

class QNearFieldTagImplCommon
{
public:
    bool DoReadNdefMessages(MNearFieldNdefOperationCallback * const aCallback);
    bool DoSetNdefMessages(const QList<QNdefMessage> &messages, MNearFieldNdefOperationCallback * const aCallback);
    bool DoHasNdefMessages();
    bool DoSendCommand(const QByteArray& command, MNearFieldTagOperationCallback * const aCallback, bool deferred = true);
    bool IssueNextRequest(QNearFieldTarget::RequestId aId);
    void RemoveRequestFromQueue(QNearFieldTarget::RequestId aId);
    QNearFieldTarget::RequestId AllocateRequestId();
    void DoCancelSendCommand();
    void DoCancelNdefAccess();
    QNearFieldTarget::Error SymbianError2QtError(int error);

    virtual void EmitNdefMessageRead(const QNdefMessage &message) = 0;
    virtual void EmitNdefMessagesWritten() = 0;
    virtual void EmitRequestCompleted(const QNearFieldTarget::RequestId &id) = 0;
    virtual void EmitError(int error, const QNearFieldTarget::RequestId &id) = 0;
    virtual void HandleResponse(const QNearFieldTarget::RequestId &id, const QByteArray &command, const QByteArray &response, bool emitRequestCompleted) = 0;
    virtual void HandleResponse(const QNearFieldTarget::RequestId &id, const QVariantList& response, int error) = 0;
    virtual QVariant decodeResponse(const QByteArray& command, const QByteArray& response) = 0;

public:
    QNearFieldTagImplCommon(CNearFieldNdefTarget *tag);
    virtual ~QNearFieldTagImplCommon();

protected:
    bool _hasNdefMessage();
    QNearFieldTarget::RequestId _ndefMessages();
    QNearFieldTarget::RequestId _setNdefMessages(const QList<QNdefMessage> &messages);

    void _setAccessMethods(const QNearFieldTarget::AccessMethods& accessMethods)
    {
        mAccessMethods = accessMethods;
    }

    QNearFieldTarget::AccessMethods _accessMethods() const
    {
        return mAccessMethods;
    }

    QNearFieldTarget::RequestId _sendCommand(const QByteArray &command);
    QNearFieldTarget::RequestId _sendCommands(const QList<QByteArray> &command);
    bool _waitForRequestCompleted(const QNearFieldTarget::RequestId &id, int msecs = 5000);
    bool _waitForRequestCompletedNoSignal(const QNearFieldTarget::RequestId &id, int msecs = 5000);

    QByteArray _uid() const;

    bool _isProcessingRequest() const;

protected:
    CNearFieldNdefTarget * mTag;
    QNearFieldTarget::AccessMethods mAccessMethods;
    mutable QByteArray mUid;
    RPointerArray<CNdefMessage> mMessageList;
    RBuf8 mResponse;

    QList<MNearFieldTagAsyncRequest *> mPendingRequestList;
    MNearFieldTagAsyncRequest * mCurrentRequest;

    TTimeIntervalMicroSeconds32 mTimeout;
    RPointerArray<CNdefMessage> mInputMessageList;
};

#endif
