/*

* Copyright (c) 2009 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:  Implementation for arabic peninput finger hwr

*

*/

#ifndef C_PENINPUTFINGERHWRARSTATEMANAGER_H

#define C_PENINPUTFINGERHWRARSTATEMANAGER_H

//SYSTEM INCLUDES

#include <e32base.h>

#include <e32cmn.h>

//FORWARD CLASS

class CPeninputFingerHwrArLayout;

class CPeninputFingerHwrArDataStore;

class CPeninputFingerHwrArStateManagerBase;

class CPeninputFingerHwrArStateManager;

/**

* Class MPeninputFingerHwrArStateHandler

*

* The state handler interfaces 

*

* @lib peninputfingerhwrar.lib

* @since S60 v5.0

*/

class MPeninputFingerHwrArStateHandler

    {

public:    

    /**

    * Handle state event

    *

    * @since Symbian TB9.2

    */

    virtual void HandleEventL( const TInt aEventType, const TDesC& aEventData ) = 0;

    /**

    * Handle the state entering action

    *

    * @since Symbian TB9.2

    */

    virtual void OnEntry() = 0;

    /**

    * Handle the state exiting action

    *

    * @since Symbian TB9.2

    */

    virtual void OnExit() = 0;

    };

/**

* The state handler base class.

*

* @since Symbian TB9.2.

*/    

class CPeninputFingerHwrArStateHandlerBase :public CBase 

     ,public MPeninputFingerHwrArStateHandler

    {

public:    

    /**

    * The handler base destructor

    *

    * @since Symbian TB9.2

    */

    virtual ~CPeninputFingerHwrArStateHandlerBase();

protected:

    /**

    * The constructor.

    *

    * @since Symbian TB9.2

    * @param aStateManager The reference to state manager. @see CPeninputFingerHwrStateManager.

    */

    CPeninputFingerHwrArStateHandlerBase( CPeninputFingerHwrArStateManagerBase& aStateManager );

protected:

    /**

    * The reference to state manager.

    *

    * @since Symbian TB9.2

    */

    CPeninputFingerHwrArStateManagerBase& iStateManager;

    /**

    * The data store reference

    *

    * @since Symbian TB9.2

    */

    CPeninputFingerHwrArDataStore& iDataStore;      

    };

/**

* The finger hwr state manager base class.

*

* @since Symbian TB9.2

*/

class CPeninputFingerHwrArStateManagerBase : public CBase

    {

public:

    enum TStateManagerState

        {

        EStateStandBy = 0

        };

public:

    /**

    * The destructor

    *

    *@since Symbian TB9.2

    */

    virtual ~CPeninputFingerHwrArStateManagerBase();  

public:

    /**

    * Handle the hwr box and canidate events

    *

    * @since Symbian TB9.2

    * @param aEventType The event type

    * @param aEventData The event data

    */

    virtual void HandleEventL( const TInt aEventType, const TDesC& aEventData );

    /**

    * Return the layout reference

    *

    * @since Symbian TB9.2

    * CPeninputFingerHwrArLayout& The hwr layout reference

    */

    CPeninputFingerHwrArLayout& HwrLayout();

    /**

    * Is stanby state

    *

    * @since Symbian TB9.2

    * TBool The standby state flag

    */    

    TBool IsStandbyState();

    /**

    * Set current state.

    * 

    * @since Symbian TB9.2

    * @param aState The state to be set. @See TPeninputFingerHwrState.

    */    

    virtual void SetState( TInt aState );     

protected:

    /**

    * 2nd phase constructor.

    * 

    * @since Symbian TB9.2

    */

    void BaseConstructL();

    /**

    * The constructor.

    *

    * @since Symbian TB9.2

    * @param aLayout The full screen HWR layout pointer.

    */

    CPeninputFingerHwrArStateManagerBase( CPeninputFingerHwrArLayout* aLayout );

    /**

    * Pointer to the full screen hwr layout.

    * 

    * Not own.

    */

    CPeninputFingerHwrArLayout* iLayout;

    /**

    * The pointer to current state.

    * Own

    */    

    CPeninputFingerHwrArStateHandlerBase* iCurrentStateHandler;

    /**

    * The current state.

    * Own

    */

    TInt iCurrentState;

    };

/**

* The finger hwr state manager for arabic.

*

* @since Symbian TB9.2

*/

class CPeninputFingerHwrArStateManager : public CPeninputFingerHwrArStateManagerBase

    {

public:

    /**

    * The factory function

    *

    * @since Symbian TB9.2

    * @param aLayout The layout reference

    * @return CPeninputFingerHwrArStateManager* The newly created CPeninputFingerHwrArStateManager object

    */

    static CPeninputFingerHwrArStateManager* NewL( CPeninputFingerHwrArLayout* aLayout );

    /**

    * The destructor

    *

    *@since Symbian TB9.2

    */

    ~CPeninputFingerHwrArStateManager();

public:    

    /**

    * The hwr states.

    *

    *@since Symbian TB9.2

    */    

    enum TPeninputFingerHwrArState

    {

    EPeninputFingerHwrArStateStandby = EStateStandBy,

    EPeninputFingerHwrArStateWriting,

    EPeninputFingerHwrArStateCandidateSelecting,

    EPeninputFingerHwrArStateCount

    };    

public:

    /**

    * Handle the hwr box and canidate events

    *

    * @since Symbian TB9.2

    * @param aEventType The event type

    * @param aEventData The event data

    */

    virtual void HandleEventL( const TInt aEventType, const TDesC& aEventData );

    /**

    * Set current state.

    * 

    * @since Symbian TB9.2

    * @param aState The state to be set. @See TPeninputFingerHwrState.

    */    

    virtual void SetState( TInt aState );

private:

    /**

    * The constructor.

    *

    * @since Symbian TB9.2

    * @param aLayout The full screen HWR layout pointer.

    */

    CPeninputFingerHwrArStateManager( CPeninputFingerHwrArLayout* aLayout );

    /**

    * 2nd phase constructor.

    * 

    * @since Symbian TB9.2

    */

    void ConstructL();

    /**

    * Find the current state object.

    *

    * @since Symbian TB9.2

    * @param aState According to this state type, 

    *        we could find the corresponding state obect.

    */

    CPeninputFingerHwrArStateHandlerBase* Find( TPeninputFingerHwrArState );

private:    

    /**

    * Store all states pointers.

    * Own.

    */

    CPeninputFingerHwrArStateHandlerBase* iStateHandlers[EPeninputFingerHwrArStateCount];

    /**

    * Store all states' types.

    * Own

    */

    TPeninputFingerHwrArState iStates[EPeninputFingerHwrArStateCount];    

    };

/**

* The Standby state class.

*

* @since Symbian TB9.2

*/    

class CPeninputFingerHwrArStateStandby : public CPeninputFingerHwrArStateHandlerBase

    {

public:

    /**

    * Factory function

    *

    * @since Symbian TB9.2

    * @param aStateManager The reference to state manager. @see CPeninputFingerHwrStateManager.

    * @return CPeninputFingerHwrStateHandlerStandby* Return the 

          CPeninputFingerHwrStateHandlerStandby object pointer. 

    */

    static CPeninputFingerHwrArStateStandby* NewL( 

        CPeninputFingerHwrArStateManager& aStateManager );

public:

    /**

    * Handle state event

    *

    * @since Symbian TB9.2

    */

    void HandleEventL( const TInt aEventType, const TDesC& aEventData );

    /**

    * Handle the state entering action

    * 

    * @since Symbian TB9.2

    */

    void OnEntry();

    /**

    * Handle the state exiting action

    *

    * @since Symbian TB9.2

    */

    void OnExit();

private:

    /**

    * The constructor

    *

    * @since Symbian TB9.2

    * @param aStateManager The reference to state manager. @see CPeninputFingerHwrStateManager.

    */

    CPeninputFingerHwrArStateStandby( 

         CPeninputFingerHwrArStateManager& aStateManager );

    };

/**

* The Writing state class.

*

* @since Symbian TB9.2

*/

class CPeninputFingerHwrArStateWriting : public CPeninputFingerHwrArStateHandlerBase

    {

public:

    /**

    * Factory function

    *

    * @since Symbian TB9.2

    * @param aStateManager The reference to state manager. @see CPeninputFingerHwrStateManager.

    * @return CPeninputFingerHwrStateHandlerWriting* Return the 

          CPeninputFingerHwrStateHandlerWriting object pointer. 

    */

    static CPeninputFingerHwrArStateWriting* NewL( 

        CPeninputFingerHwrArStateManager& aStateManager );    

public:

    /**

    * Handle state event

    *

    * @since Symbian TB9.2

    */

    void HandleEventL( const TInt aEventType, const TDesC& aEventData );

    /**

    * Handle the state entering action

    * 

    * @since Symbian TB9.2

    */

    void OnEntry();

    /**

    * Handle the state exiting action

    *

    * @since Symbian TB9.2

    */

    void OnExit();

private:

    /**

    * The constructor

    *

    * @since Symbian TB9.2

    * @param aStateManager The reference to state manager. @see CPeninputFingerHwrStateManager.

    */

    CPeninputFingerHwrArStateWriting( CPeninputFingerHwrArStateManager& aStateManager );

private:

    /**

    * Handle the end stroke event

    *

    * @since Symbian TB9.2

    * @param aEventData The trace data

    */

    void OnEndStrokeL( const TDesC& aEventData );

    /**

    * Handle the end writing event

    *

    * @since Symbian TB9.2

    * @param aEventData The trace data

    */

    void OnEndWritingL( const TDesC& aEventData );

    };

/**

* The CandidateSelecting state class for Chinese.

*

* @since Symbian TB9.2

*/

class CPeninputFingerHwrArStateCandidateSelecting : public CPeninputFingerHwrArStateHandlerBase

    {

public:

    /**

    * Factory function

    *

    * @since Symbian TB9.2

    * @param aStateManager The reference to state manager. @see CPeninputFingerHwrStateManager.

    * @return CPeninputFingerHwrStateHandlerCandidateSelecting Return the 

          CPeninputFingerHwrStateHandlerCandidateSelecting object pointer. 

    */

    static CPeninputFingerHwrArStateCandidateSelecting* NewL( 

        CPeninputFingerHwrArStateManager& aStateManager );    

public:

    /**

    * Handle state event

    *

    * @since Symbian TB9.2

    */

    void HandleEventL( const TInt aEventType, const TDesC& aEventData );

    /**

    * Handle the state entering action

    * 

    * @since Symbian TB9.2

    */

    void OnEntry();

    /**

    * Handle the state exiting action

    *

    * @since Symbian TB9.2

    */

    void OnExit();

private:

    /**

    * The constructor

    *

    * @since Symbian TB9.2

    * @param aStateManager The reference to state manager. @see CPeninputFingerHwrStateManager.

    */

    CPeninputFingerHwrArStateCandidateSelecting( 

              CPeninputFingerHwrArStateManager& aStateManager );

private:

    /**

    * Handle one candiate selected event

    * 

    * @since Symbian TB9.2

    * @param aEventData The selected candidate

    */

    void OnSelectedCandidatesL( const TDesC& aEventData );

    /**

    * Handle backspace events

    *

    * @since Symbian TB9.2

    */

    void OnClickBackSpaceL();

    };

#endif    //C_PENINPUTFINGERHWRARSTATEMANAGER_H