/*

* Copyright (c) 2007 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:  CCCHPlugin declaration

*

*/

#ifndef C_CCHPLUGIN_H

#define C_CCHPLUGIN_H

// INCLUDES

#include <e32std.h>

#include <e32base.h>

#include "cchserviceobserver.h"

// CONSTANTS

// None

// MACROS

// None

// DATA TYPES

// None

// FUNCTION PROTOTYPES

// None

// FORWARD DECLARATIONS

class CCchService;

class MCCHServiceNotifier;

// CLASS DECLARATION

/**

 *  CCCHPlugin declaration

 *  Class contains plug-in's information

 *  @lib cchserver.exe

 *  @since S60 3.2

 */

NONSHARABLE_CLASS( CCCHPlugin ) : public CBase,

                                  public MCchServiceObserver

    {

public: // Constructors and destructor

    /**

    * Two-phased constructor.

    */

    static CCCHPlugin* NewL( TUid aUid );

    /**

     * Destructor.

     */

    virtual ~CCCHPlugin();

public: // New functions

    /**

     * Check Plug-ins Uid

     * @since S60 3.2

     * @param aUid Plug-in's Uid

     * @return TBool ETrue if Uid is same that this Plug-in's Uid

     */

    TBool CheckUid( const TUid aUid ) const;

    /**

     * Return pointer to CCHService plug-in

     * @since S60 3.2

     * @return Pointer to CCHService plug-in

     */

    CCchService* Plugin() const;

    /**

     * Adds a observer for plugin events.

     * @since S60 3.2

     * @param aObserver Pointer to observer.

     */

    void SetServiceNotifier( MCCHServiceNotifier* aObserver );

    /**

     * Removes a observer for plugin events.

     * @since S60 3.2

     * @param aObserver Pointer to observer.

     */

    void RemoveServiceNotifier( MCCHServiceNotifier* aObserver );

private:

    /**

     * CCchService implementation have to use this callback

     * method when service state changed. 

     * @since S60 3.2

     * @param aServiceId Service which state has changed

     * @param aType Subservice's type. 

     * @param aState A new state of the service.

     */

    void ServiceStateChanged( const TServiceSelection aServiceSelection,

        TCCHSubserviceState aState, TInt aError );    

private:

    /**

     * C++ default constructor.

     */

    CCCHPlugin( TUid aUid );

    /**

     * By default Symbian 2nd phase constructor is private.

     */

    void ConstructL( TUid aUid );

private: // data

    /**

     * Loaded plug-in

     */

    CCchService*                        iPlugin;

    /**

     * Plug-ins Uid

     */

    TUid                                iUid;

    /**

     * Plug-ins observers

     */

    RPointerArray<MCCHServiceNotifier>  iObservers;

    };

#endif // C_CCHPLUGIN_H

// End of file