/*

* 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_USBHOSTEVENTNOTIFICATIONOBSERVER_H

#define C_USBHOSTEVENTNOTIFICATIONOBSERVER_H

#include <e32base.h>

#include <usbhostdefs.h>

#include <StifTestModule.h>

#include <StifLogger.h>

#include "tassertbase.h"

class RUsb;

class MUsbHostEventNotificationObserver

    {

public:

    virtual void DeviceAttachedL(TDeviceEventInformation) = 0;

    virtual void DeviceDetachedL(TDeviceEventInformation) = 0;

    virtual void DriverLoadSuccessL(TDeviceEventInformation) = 0;

    virtual void DriverLoadPartialSuccessL(TDeviceEventInformation) = 0;

    virtual void DriverLoadFailureL(TDeviceEventInformation) = 0;

    };

/**

 *  Class observes USB Notifications

 *

 *  @lib ?library

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

 */

class CUsbHostEventNotificationObserver : public TAssertBase

    {

    friend class CtUsbOtgWatcher;

    friend class CUsbOtgWatcherTest;

public:

    /**

     * Two-phased constructor.

     * @param ?arg1 ?description

     * @param ?arg2 ?description

     */

    //    ?IMPORT_C 

    static CUsbHostEventNotificationObserver* NewL(RUsb* aUsb);

    /**

     * Destructor.

     */

    virtual ~CUsbHostEventNotificationObserver();

    void SubscribeL(MUsbHostEventNotificationObserver&);

    void UnsubscribeL(MUsbHostEventNotificationObserver&);

    void TriggerDeviceAttachedL(TDeviceEventInformation eventInfo);

    void TriggerDeviceDetachedL(TDeviceEventInformation eventInfo);

    void TriggerDriverLoadSuccessL(TDeviceEventInformation eventInfo);

    void TriggerDriverLoadPartialSuccessL(TDeviceEventInformation eventInfo);

    void TriggerDriverLoadFailureL(TDeviceEventInformation eventInfo);

private:

    CUsbHostEventNotificationObserver(RUsb* aUsb);

    void ConstructL();

private:

    // data

    // The observer reports changes to own observers

    // Owns

    MUsbHostEventNotificationObserver* iObserver;

    // Notifications come from USB

    // Not own

    RUsb* iUsb;

    };

#endif //  C_USBHOSTEVENTNOTIFICATIONOBSERVER_H