/*

* Copyright (c) 2004 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:  

*

*/

#ifndef AKNREADINGCONVERTER_H

#define AKNREADINGCONVERTER_H

// INCLUDES

#include <e32base.h>

#include <fepbase.h>

// FORWARD DECLARATIONS

class CEikEdwin;

// CLASS DECLARATION

/**

*

* This utility class is used for updating reading fields in the Japanese Series 60 platform. 

* Class binds two editors together: user enters kanji characters to the "main" editor. 

* When a kanji character entry is completed this object updates the "reading" editor.

*

* This class is not intended for further derivation.

*

* @since 2.6

*

* @internal

*/

NONSHARABLE_CLASS(CReadingConverter) : public CBase, MCoeFepObserver

    {

    public: // Constructors and destructor

        /**

        * Two-phased constructor.

        *

        * @since 2.6

        * @param aMainEditor      Reference to main editor. Ownership is not transferred.  

        * @param aReadingEditor   Reference to reading editor. Ownership is not transferred.  

        *

        * @return Newly constructed object.

        */

        IMPORT_C static CReadingConverter* NewL(CEikEdwin& aMainEditor, CEikEdwin& aReadingEditor);

        /**

        * Two-phased constructor.

        *

        * @since 2.6

        * @return Newly constructed object.

        */

        IMPORT_C static CReadingConverter* NewL();

        /**

        * Destructor.

        */

        virtual ~CReadingConverter();

    public: // From MCoeFepObserver

        /**

        * This method is the main method of this class. It is called by the FEP and

        * it checks that main editor has focus, requests reading text from CAknJapaneseReading

        * class and sets the received text into reading editor.

        *

        * @since 2.6

        */

        IMPORT_C virtual void HandleCompletionOfTransactionL(); 

    public: // New functions

        /**

        * Set method for setting main editor.

        *

        * @since 2.6

        * @param aReadingEditor   Reference to main editor. Ownership is not transferred.

        *

        */

        IMPORT_C void SetMainEditor(CEikEdwin& aMainEditor);

        /**

        * Get method for main editor.

        *

        * @since 2.6

        * @return Reference to main editor

        *

        */

        IMPORT_C CEikEdwin& MainEditor() const;

        /**

        * Set method for setting reading editor.

        *

        * @since 2.6

        * @param aReadingEditor   Reference to reading editor. Ownership is not transferred.

        *

        */

        IMPORT_C void SetReadingEditor(CEikEdwin& aReadingEditor);

        /**

        * Get method for reading editor.

        *

        * @since 2.6

        * @return Reference to reading editor

        *

        */

        IMPORT_C CEikEdwin& ReadingEditor() const;

    private:

        /**

        * C++ default constructor.

        */

        CReadingConverter(CEikEdwin* aMainEditor, CEikEdwin* aReadingEditor);

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

    private: // Data

        CEikEdwin*      iMainEditor;      // Not owned

        CEikEdwin*      iReadingEditor;   // Not owned  

        HBufC*          iPreviousMainText; // own

    };

#endif // AKNREADINGCONVERTER_H