// Copyright (c) 2009 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:

//

/**

 @file

 @internalComponent

 */

#ifndef PTPSESSION_H

#define PTPSESSION_H

#include <e32svr.h>   

#include "ptpdef.h"

#include "rptp.h"

class CPtpServer;

class CPtpTimer;

/**

* MServiceHandlerObserver M Class for callbacks

*  @since S60 3.2

*/

class MServiceHandlerObserver

    {

    public: 

        /**

        * Called to notify send Object complete with status

        * @since S60 3.2

        * @param aState, Object send status

        */

       virtual void SendObjectCompleted(TInt aStatus) = 0;

        /**

        * Called to notify object received with name and path

        * @since S60 3.2

        * @param aNameAndPath

        */

       virtual void ReceivedObjectCompleted(TDes& aNameAndPath) = 0;

        /**

        * Called to notify DPS Discovery status

        * @param aState, Printer state

        */

       virtual void IsDpsPrinterCompleted(TDpsPrinterState aState) = 0;

        /**

        * Cancel Outstanding request

        * @since S60 3.2

        */

       virtual void CancelOutstandingRequest() = 0;

    };

/**

*  A session class which creates an instance of PTP Stack when starting, 

*  and releases used memory when closing.

*

*  @since S60 3.2

*/

NONSHARABLE_CLASS(CPtpSession) : public CSession2, MServiceHandlerObserver

	{

public:

    /**

    * 2-phased constructor.

    * @since S60 3.2

    */

	static CPtpSession* NewL(CPtpServer* aServer);

	/**

	* C++ destructor.

	* @since S60 3.2

	*/

	~CPtpSession(); 

	/**

    * From CSession2, passes the request forward to DispatchMessageL.

   	* @since S60 3.2

    */

	void ServiceL( const RMessage2& aMessage );

	/**

    * Handles the request from client.

  	* @since S60 3.2

    */

	void DispatchMessageL( const RMessage2& aMessage );

    CPtpServer* ServerP() const;

public: 	// from MServiceHandlerObserver

    /**

    *  @since S60 3.2

    */   

       void SendObjectCompleted(TInt aStatus);

    /**

    *  @since S60 3.2

    */

       void ReceivedObjectCompleted(TDes& aNameAndPath);

    /**

    @since S60 3.2

    */

       void IsDpsPrinterCompleted(TDpsPrinterState aState); 

       void MTPSessionOpened();

private:

	/**

	* C++ constructor.

	* @since S60 3.2

	*/

	CPtpSession(CPtpServer* aServer);

    void ConstructL();

    /**

    * To create PTP stack and load Transport Plugin

    * @since S60 3.2

    */

    void CreateStackL(const RMessage2& aMessage);

    /**

    * Destroys PTP stack and Unloads Transport Plugin

    * @since S60 3.2

    */

    void DestroyStackL();

    /**

    * Asynch. request if DPS (PictBridge) Printer connected

    * @since S60 3.2

    */

	TInt IsDpsPrinter(const RMessage2& aMessage, TBool& aComplete);

    /**

	* To get object handle By Name

	* @since S60 3.2

	*/

    void GetObjectHandleByNameL(const RMessage2& aMessage);

    /**

	* To Get Object name by handle

	* @since S60 3.2

	*/

    void GetNameByObjectHandleL(const RMessage2& aMessage);

    /**

	* Request to send Object

	* @since S60 3.2

	*/

    TInt SendObject(const RMessage2& aMessage, TBool& aComplete);

    /**

	* Register for Object received notifications

	* @since S60 3.2

	*/

    TInt ObjectReceivedNotify(const RMessage2& aMessage, TBool& aComplete);

    /**

	* Cancel previously issued Asynch. request IsDpsPrinter()

	* @since S60 3.2

	*/

    void CancelIsDpsPrinter();

    /**

	* Cancel previously issued asynch. request send Object

	* @since S60 3.2

	*/

    void CancelSendObject();

    /**

	* DeRegister for Object received notification

	* @since S60 3.2

	*/

    void CancelObjectReceivedNotify();

    /**

	* Get PTP Folder name and path

	* @since S60 3.2

	*/

    TInt PtpFolder(const RMessage2& aMessage);

    /**

	* Request Cancel current PTP Transaction

	* @since S60 3.2

	*/

    void CancelOutstandingRequest();

    void CleanupL();

private: 	// Data

	CPtpServer*  iServerP;  // not owned

	RMessage2    iSendObjectMsg;

	RMessage2    iObjectReceivedNotifyMsg;

	RMessage2    iDpsPrinterMsg;

	RMessage2    iCancelMsg;

    TFileName    iReceivedFile;

    CPtpTimer*   iTimerP;  // owned

    /**

    FLOGGER debug trace member variable.

    */

    __FLOG_DECLARATION_MEMBER_MUTABLE;

	};

#endif // PTPSESSION_H