/*

 * Copyright (c) 2008 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:  Base classes for Usb notifier wrapper  

 *

 */

#ifndef C_CUSBNOTIFIER_H

#define C_CUSBNOTIFIER_H

#include <e32base.h>

class CUsbNotifManager;

/**

 * Base class for usb notifiers.

 * Define primitive methods needed for all kinds of notifiers such as Avkon 

 * informative note, feedback-needed note, usb indicator etc.

 * Some notifier needs feedback input from end-user such as waiting note, some 

 * of them don't such as informative note and usb indicator. 

 */

NONSHARABLE_CLASS( CUsbNotifier) : public CBase

    {

public:

    /**

     * Destructor.

     */

    virtual ~CUsbNotifier();

    /**

     * Start to show notifier

     */

    virtual void ShowL() = 0;

    /**

     * Stop showing notifier

     */

    virtual void Close() = 0;

    /**

     * Getter for returning if the notifier needs input from end-user

     * @return ETrue-user feedback needed, EFalse-user feedback not needed. 

     */

    TBool IsFeedbackNeeded() const;

protected:

    /**

     * Default constructor

     * @param aNotifManager manager

     * @param acat Category

     * @param aNotidId id 

     */

    CUsbNotifier(CUsbNotifManager& aNotifManager, TUid aCat, TUint aNotifId);

    /**

     * Set by child-class if the concrete notifier needs feedback from end-user

     */

    void SetFeedbackNeeded();

protected:

    //data

    /**

     * The manager of all usb notifieres.

     * All notifiers are created, destroied and manupulated by the manager.  

     * Not own 

     */

    CUsbNotifManager& iNotifManager;

    /**

     * Category of the notifier. Needed for cancelling 

     */

    TUid iCat;

    /**

     * The identifier of the notifier

     */

    TUint iNotifId;

    /**

     * If the notifier needs feedback from end-user. 

     */

    TBool iIsFeedbackNeeded;

    };

#endif // C_CUSBNOTIFIER_H