/*

* Copyright (c) 2002-2006 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: 

*     CVRUSBStateHanlder declaration

*     

*

*/

#ifndef VRUSBSTATEHANLDER_H

#define VRUSBSTATEHANLDER_H

#include <e32base.h>	// For CActive, link against: euser.lib

#include <e32std.h>		// For RTimer, link against: euser.lib

#include <e32property.h> 

//#include "DummyUSBState.h" // for dummy testing

class MVRUSBStateObserver

    {

public:

    // Constructors and destructor

    virtual TInt HandleUsbPlugInL() = 0;

    virtual TInt HandleUsbPlugOutL() = 0;

    };

class CVRUSBStateHanlder : public CActive

    {

public:

    // Cancel and destroy

    ~CVRUSBStateHanlder();

    IMPORT_C static CVRUSBStateHanlder* NewL(MVRUSBStateObserver* aObserver);

public:

    IMPORT_C static TBool IsUsbActive();

private:

    // C++ constructor

    CVRUSBStateHanlder(MVRUSBStateObserver* aObserver);

    // Second-phase constructor

    void ConstructL();

private:

    // From CActive

    // Handle completion

    void RunL();

    // How to cancel me

    void DoCancel();

    // Override to handle leaves from RunL(). Default implementation causes

    // the active scheduler to panic.

    TInt RunError(TInt aError);

    void StartL();

private:

#ifdef DUMMY_USB_TESTING

    RTimer iTimer; // Provides async timing service, for dummy testing

    TInt isUSBActive;

#else

    RProperty iProperty;

#endif

    MVRUSBStateObserver* iObserver;    

    enum TUSBConnectionStatus 

        { 

        EStateUninitialized, 

        EStateConnected, 

        EStateDisConnected

        }; 

    TUSBConnectionStatus iConnectionStatus;

    };

#endif // VRUSBSTATEHANLDER_H