/*

* 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: Definition of CPhoneDtmfNumberListQuery class.

*

*/

#ifndef CPHONEDTMFNUMBERLISTQUERY_H

#define CPHONEDTMFNUMBERLISTQUERY_H

#include    <AknQueryDialog.h>

// CLASS DECLARATION

class MPhoneQueryObserver; 

/**

*   DTMF number list query.

*

*   Shows DTMF list query. 

*   By default list is formatted with 'Find' and 'Enter manually' items.

*   In addition predefined DTMF of the contact can be seen in 

*   list if available.

*

*   Otherwise base class can handle it.

*

*   @since 5.0

*/

class CPhoneDtmfNumberListQuery : public CAknListQueryDialog

    {

    public:  // Constructors and destructor      

         /**

        * Creates new instance of CPhoneDtmfNumberListQuery

        * @param aCommandObserver callback observer

        * @param aQueryObserver  query observer

        * @param aSelectedDtmfNumber selected predefined dtmf number 

        * @return CPhoneDtmfNumberListQuery* object  

        */

        static CPhoneDtmfNumberListQuery* 

            CPhoneDtmfNumberListQuery::NewL( MEikCommandObserver& aCommandObserver,

                                             MPhoneQueryObserver& aQueryObserver,

                                             HBufC*& aSelectedDtmfNumber );

        /**

        * Destructor.

        */

        virtual ~CPhoneDtmfNumberListQuery();

    public:

        /**

        * Appends given string to DTMF array 

        * @param aString -string to be added 

        */    

        void AppendStringToArrayL( TDesC& aString );

    protected: // Functions from base classes

        /**

        * From base class, 

        * check if it is ok to exit.

        */

        TBool OkToExitL( TInt aButtonId );

        /**

        * From CEikDialog, initialization after layout.

        */

        void PostLayoutDynInitL();

        TKeyResponse OfferKeyEventL( const TKeyEvent& aKeyEvent,

                                          TEventCode aType );

    private:

        /**

        * C++ constructor.

        * @param aCommandObserver callback observer

        * @param aQueryObserver  query observer

        * @param aSelectedDtmfNumber selected predefined dtmf number 

        */

        CPhoneDtmfNumberListQuery( MEikCommandObserver& aCommandObserver,

                                   MPhoneQueryObserver& aQueryObserver,

                                   HBufC*& aSelectedDtmfNumber  );

        /**

        * Symbian constructor

        */

        void ConstructL();

    private:    // Data

        MEikCommandObserver& iCommandObserver;

        MPhoneQueryObserver& iQueryObserver;

        HBufC*& iSelectedDtmfNumber;

        // Index of selected item.

        TInt iIndex;

        // Contains predefined DTMF(s), 'Find' and 'Enter manually' items

        // Owned.

        CDesCArrayFlat iArray;

    };

#endif      // CPHONEDTMFNUMBERLISTQUERY_H

// End of File