/*

* Copyright (c) 2002-2005 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:  Interface of vkb composition no chars ui state

*

*/

#ifndef C_AKNFEPVKBUISTATECOMPOSITIONNOCHARS_H

#define C_AKNFEPVKBUISTATECOMPOSITIONNOCHARS_H

// user includes

#include "peninputvkbuistate.h"

// class declarations

/**

 *  Composition no chars ui state

 *  It provides key event handling and internal event handling in composition no chars state

 *

 *  @lib peninputvkbcn.lib

 *  @since S60 v3.2

 */

class CAknFepVkbUiStateCompositionNoChars : public CAknFepVkbUiState

    {

public:

    /**

     * Two-phased constructor.

     *

     * @since S60 v3.2

     * @param aUiStateMgr The vkb ui state manager

     * @param aContext The vkb layout context

     * @return The pointer point to CAknFepVkbUiStateCompositionNoChars type object

     */

    static CAknFepVkbUiStateCompositionNoChars* NewL(MAknFepVkbUiStateMgr* aUiStateMgr, 

                                                     MAknFepVkbLayoutContext* aContext);

    /**

     * Destructor.

     *

     * @since S60 v3.2

     */

    virtual ~CAknFepVkbUiStateCompositionNoChars();

    /**

     * Process key event

     *

     * @since S60 v3.2

     * @param aData Carry information of key pressed

     * @return ETrue means event was responsed, otherwise EFalse

     */

    virtual TBool HandleKeyEventL(const TRawEvent &aData);     

protected:

    /**

     * C++ default constructor.

     *

     * @since S60 v3.2

     * @param aUiStateMgr The vkb ui state manager

     * @param aContext The vkb layout context

     */

    CAknFepVkbUiStateCompositionNoChars(MAknFepVkbUiStateMgr* aUiStateMgr, 

                                        MAknFepVkbLayoutContext* aContext);

    /**

     * Symbian second-phase constructor

     *

     * @since S60 v3.2

     * @return None

     */

    //void ConstructL();

    /**

     * Process virtual key event

     *

     * @since S60 v3.2

     * @param aEventType The event type

     * @param aEventData The event data

     * @return ETrue means event was responsed, otherwise EFalse

     */

    virtual TBool HandleVkbEvent(TInt aEventType, const TDesC& aEventData);

    /**

     * Process backspace key event

     *

     * @since S60 v3.2

     * @param aEventType The event type

     * @param aEventData The event data

     * @return ETrue means event was responsed, otherwise EFalse

     */

    virtual TBool HandleBackEvent(TInt aEventType, const TDesC& aEventData);

    /**

     * Process enter, space key event

     *

     * @since S60 v3.2

     * @param aEventType The event type

     * @param aEventData The event data

     * @return ETrue means event was responsed, otherwise EFalse

     */

    virtual TBool HandleEnterSpaceEvent(TInt aEventType, const TDesC& aEventData);   

    /**

     * Process tab key event

     *

     * @since S60 v3.2

     * @param aEventType The event type

     * @param aEventData The event data

     * @return ETrue means event was responsed, otherwise EFalse

     */

    virtual TBool HandleTabEvent(TInt aEventType, const TDesC& aEventData);    

	virtual TBool HandleArrowKeyEvent(TInt aEventType, const TDesC& aEventData);        

    };

#endif  // C_AKNFEPVKBUISTATECOMPOSITIONNOCHARS_H

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