/*

* Copyright (c) 2010 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:

*

*/

#ifndef C_USBMESSAGENOTIFICATIONOBSERVER_H

#define C_USBMESSAGENOTIFICATIONOBSERVER_H

#include <e32base.h>

#include "tassertbase.h"

class RUsb;

class MUsbMessageNotificationObserver

    {

public:

    virtual void MessageNotificationReceivedL(TInt) = 0;

    virtual void BadHubPositionL() = 0;

    virtual void VBusErrorL() = 0;

    virtual void SrpReceivedL() = 0;

    virtual void SessionRequestedL() = 0;

    };

/**

 *  Class observes USB Notifications

 *

 *  @lib ?library

 *  @since S60 ?S60_version *** for example, S60 v3.0

 */

class CUsbMessageNotificationObserver : public TAssertBase

    {

    friend class CtUsbOtgWatcher;

    friend class CUsbOtgWatcherTest;

public:

    /**

     * Two-phased constructor.

     * @param ?arg1 ?description

     * @param ?arg2 ?description

     */

    //    ?IMPORT_C 

    static CUsbMessageNotificationObserver* NewL(RUsb* aUsb);

    /**

     * Destructor.

     */

    virtual ~CUsbMessageNotificationObserver();

    void SubscribeL(MUsbMessageNotificationObserver&);

    void UnsubscribeL(MUsbMessageNotificationObserver&);

    void TriggerMessageNotificationReceivedL(TInt);

    void TriggerBadHubPositionL();

    void TriggerVBusErrorL();

    void TriggerSrpReceivedL();

    void TriggerSessionRequestedL();

private:

    CUsbMessageNotificationObserver(RUsb* aUsb);

    void ConstructL();

private:

    // data

    // The observer reports to own observers

    // Owns

    MUsbMessageNotificationObserver* iObserver;

    // Notifications come from USB

    // Not own

    RUsb* iUsb;

    // Info from notification comes to this member

    TInt iMessage;

    };

#endif //  C_USBMESSAGENOTIFICATIONOBSERVER_H