/*

* Copyright (c) 2006, 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:  This class implements functions of set ptp personality, the 

*                notification of the PTP printer connection and the

*				 notification of the PTP printer disconnection. 

*

*/

#ifndef DPSUSBNOTIFIER_H

#define DPSUSBNOTIFIER_H

#include <e32base.h>

#include <usbstates.h>

#include "pictbridge.h"

#include <usbman.h>

#include <usbwatcher.h>

class CDpsPtpNotifier;

class CDpsConnectNotifier;

class CDpsPersonalityWatcher;

/**

*   Class for monitoring the usb personality change and cable 

*   connection/disconnectin

*/

NONSHARABLE_CLASS(CDpsUsbNotifier) : public CActive

    {

    friend class CDpsPtpNotifier;

    friend class CDpsConnectNotifier;

    friend class CDpsPersonalityWatcher;

    public:

        /**

        *   Two phase constructor

        *   @param aEngine the pointer to the dps engine object

        *   @param the CDpsUsbNotifier instance 

        */

        static CDpsUsbNotifier* NewL(CDpsEngine* aEngine);

        /**

        *   Destructor

        */

        ~CDpsUsbNotifier();

        /**

        *   Issues the request for printer connection notification

        */

        void WaitForPrinterNotify();

        /**

        *   Cancels the request for printer connection notification

        */

        void CancelPrinterNotify();

        /**

        *   Issues the request for printer connect/disconnect notification

        */

        void ConnectNotify();

		/**

		*   @return TBool Checks if the PTP printer is connected

		*/		

	    TBool IsConfigured() const;

	    /**

	    *

	    */

	    TBool IsSetPrintModeIssued();

    private:

        /**

        *   Second phase constructor

        */

        void ConstructL();

        /**

        *   Default constructor

        *   @param aEngine the pointer to the dps engine

        */

        CDpsUsbNotifier(CDpsEngine *aEngine);

        /**

        *   Called by PtpNotifier to indicate a ptp printer/pc is connected

        */

        void PtpNotify(TInt aErr);

		/**

		*

		*/

		void PersonalityChanged();

        /**

        *   Called by ConnectNotifier to indeicate the cable disconnect

        */

        void DisconnectNotify(TUsbDeviceState aState);

        /**

        *   Updates the current device state

        *   @return ETrue if OK, EFalse if failed

        */

        TInt ConnectState();

        /**

        *   Changes back to the previous personality       

        */

        void Rollback();

    private: // from CActive		

        /**

        *   @See CActive::RunL

        */

        void RunL();

        /**

        *   @See CActive::RunError

        */

        TInt RunError(TInt aErr);

        /**

        *   @See CActive::DoCancel

        */

        void DoCancel();

    private:

        // not owned by this class

        CDpsEngine* iEngine;

        // owned by this class

        CDpsPtpNotifier* iPtpP;

        // owned by this class

        CDpsConnectNotifier* iConnectP;

        // owned by this class

        CDpsPersonalityWatcher* iPersonalityWatcher;

        TInt	iPersonality;

        TUsbDeviceState iConnectState;

        // indication of whether the PTP printer has connected

        TBool iConfigured;	

        CDpsEngine::TConnectionStatus iConnection;	

        // owned by this class

        RUsbWatcher iUsbW;

        // owned by this class

        RUsb    iUsbM;

        // if rollback to previous personality is needed when application quits

        TBool iRollback;

    };

#endif