/*

* Copyright (c) 2007 - 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:  CDialingExtensionObserver provides an observer class for 

*               dialingextension plug-in.

*

*/

#ifndef CDIALINGEXTENSIONOBSERVER_H

#define CDIALINGEXTENSIONOBSERVER_H

#include <dialingextensioninterface.h>

class CDialingExtensionInterface;

class CDialerNumberEntry;

class CDialer;

NONSHARABLE_CLASS( CDialingExtensionObserver ) : public CBase, public MDialingExtensionObserver

    {

public:

    /**

    * Two phase constructor

    * @param aDialingExtension  Dialer extension. Does not take ownership.

    * @param aNumberEditor      Number editor. Does not take ownership.

    * @param aDialer            Dialer. Does not take ownership.

    * @return New instance

    */

    static CDialingExtensionObserver* NewL( 

            CDialingExtensionInterface* aDialingExtension, 

            CDialerNumberEntry* aNumberEntry,

            CDialer* aDialer );

    /**

     * Destructor

     */

    ~CDialingExtensionObserver();

    /**

    * MDialingExtensionObserver function.

    */

    void HandleDialingExtensionEvent( MDialingExtensionObserver::TEvent aEvent );

private:

    /**

    * Cconstructor

    * @param aDialingExtension  Dialer extension. Does not take ownership.

    * @param aNumberEditor      Number editor. Does not take ownership.

    * @param aDialer            Dialer. Does not take ownership.

    */

    CDialingExtensionObserver( 

            CDialingExtensionInterface* aDialingExtension, 

            CDialerNumberEntry* aNumberEntry,

            CDialer* aDialer );

    void UpdateCba();

    void SearchL();

private:

    // Not owned.

    CDialingExtensionInterface* iDialingExtension;

    // Not owned.

    CDialerNumberEntry* iNumberEntry;

    // Not owned.

    CDialer* iDialer;

    // Not owned.

    CEikonEnv* iEikonEnvironment;    

    };

#endif // CDIALINGEXTENSIONOBSERVER_H