/*

* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  AT extension API

*

*/

#ifndef BTATEXTAGENT_H

#define BTATEXTAGENT_H

//  INCLUDES

#include <e32base.h>

#include <atext.h>

#include "btmcactive.h"

#include "HFPAtEcomListen.h"

#include "HFPAtUrcHandler.h"

class CBtmcActive;

class MATExtObserver

    {

public:

    virtual void ATExtHandleReplyReceivedL(TInt aErr, const TDesC8& aReply) = 0;

    virtual void UnsolicitedResultFromATExtL(TInt aErr, const TDesC8& aAT) = 0;

    };

NONSHARABLE_CLASS( CHFPAtCmdHandler ) : public CBase, 

                                        public MBtmcActiveObserver,

                                        public MHFPAtEcomListen

	{

public:

    static CHFPAtCmdHandler* NewL(MATExtObserver& aObserver);

public:

	~CHFPAtCmdHandler();

	void HandleCommand(const TDesC8& aAT, const TDesC8& aReply = KNullDesC8);

private:

    void RequestCompletedL(CBtmcActive& aActive, TInt aErr);

    void CancelRequest(TInt aServiceId);

    TInt HandleRunError(TInt aErr);

private:

	CHFPAtCmdHandler(MATExtObserver& aObserver);

    /**

     * Creates plugin handlers for this class

     *

     * @since S60 5.0

     * @return None

     */

    void CreatePluginHandlersL();

    /**

     * Instantiates one URC message handling class instance and adds it to

     * the URC message handler array

     *

     * @since S60 3.2

     * @return None

     */

    CHFPAtUrcHandler* AddOneUrcHandlerL();

    /**

     * Deletes all instantiated URC message handlers

     *

     * @since S60 5.0

     * @return None

     */

    void DeletePluginHandlers();

    // from base class MHFPAtEcomListen

    /**

      * From MHFPAtEcomListen.

      * Notifies about new plugin installation

      *

      * @since S60 5.0

      * @return None

      */

    TInt NotifyPluginInstallation( TUid& aPluginUid );

    /**

      * From MHFPAtEcomListen.

      * Notifies about existing plugin uninstallation

      *

      * @since S60 5.0

      * @return None

      */

    TInt NotifyPluginUninstallation( TUid& aPluginUid );

    /**

     * Starts URC message handling

     *

     * @since S60 5.0

     * @return Symbian error code on error, KErrNone otherwise

     */

    TInt StartUrc();

    /**

     * Stops URC message handling

     *

     * @since S60 3.2

     * @return Symbian error code on error, KErrNone otherwise

     */

    TInt StopUrc();

	void ConstructL();

private:

    MATExtObserver& iObserver;

    RATExt iATExtClient;

    TInt iRemainingReplyLength;

    TPckg<TInt> iRemainingReplyLengthPckg;

    TATExtensionReplyType iReplyType;

    TPckg<TATExtensionReplyType> iReplyTypePckg;

    CBtmcActive* iCommander; // for command handling

        /**

     * URC message handlers

     * Own.

     */

    RPointerArray<CHFPAtUrcHandler> iUrcHandlers;

    /**

     * ECOM plugin interface status change listener

     * Own.

     */

    CHFPAtEcomListen* iEcomListen;

	};

#endif      // BTATEXTAGENT_H

// End of File