/*

* 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_USBOTGSTATEOBSERVER_H

#define C_USBOTGSTATEOBSERVER_H

#include <e32base.h>

#include <usbotgdefs.h>

#include <StifTestModule.h>

#include <StifLogger.h>

#include "tassertbase.h"

class MUsbOtgStateObserver

    {

public:

    virtual void AIdleL() = 0;

    virtual void AHostL() = 0;

    virtual void APeripheralL() = 0;

    virtual void AVBusErrorL() = 0;

    virtual void BIdleL() = 0;

    virtual void BPeripheralL() = 0;

    virtual void BHostL() = 0;

    };

/**

 *  Class observes OTG State property, see usbotgdefs.h

 *

 *  @lib ?library

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

 */

class CUsbOtgStateObserver : public TAssertBase

    {

    friend class CtUsbOtgWatcher;

    friend class CUsbOtgWatcherTest;

public:

    /**

     * Two-phased constructor.

     * @param ?arg1 ?description

     * @param ?arg2 ?description

     */

    //    ?IMPORT_C 

    static CUsbOtgStateObserver* NewL();

    /**

     * Destructor.

     */

    virtual ~CUsbOtgStateObserver();

    /**

     * ?description

     *

     * @since S60 ?S60_version

     * @param ?arg1 ?description

     * @param ?arg2 ?description

     * @return ?description

     */

    //    ?IMPORT_C 

    TUsbOtgState OtgState();

    /**

     * ?description

     *

     * @since S60 ?S60_version

     * @param ?arg1 ?description

     * @param ?arg2 ?description

     * @return ?description

     */

    void SubscribeL(MUsbOtgStateObserver&);

    void UnsubscribeL(MUsbOtgStateObserver&);

    void TriggerAIdleL();

    void TriggerAHostL();

    void TriggerAPeripheralL();

    void TriggerAVBusErrorL();

    void TriggerBIdleL();

    void TriggerBPeripheralL();

    void TriggerBHostL();

private:

    CUsbOtgStateObserver();

    void ConstructL();

private:

    // data

    // The observer reports state changes to own observers

    // Owns

    MUsbOtgStateObserver* iObserver;

    TInt iOtgState;

    };

#endif //  C_USBOTGSTATEOBSERVER_H