/*

* Copyright (c) 2002-2004 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:           

*       Provides the CAknFepKeyCatcher definition.

*

*/

#ifndef __AKN_INPUT_FEP_KEYCATCHER_H__

#define __AKN_INPUT_FEP_KEYCATCHER_H__

#include <coecntrl.h>       //CCoeControl

#include <coemain.h>

#include "AknFepGlobalEnums.h"

class CAknFepManager;

/**

 * Interface class to allow ability to switch into a test mode, where a different

 * key catcher is used, i.e. to print values of keys received on the screen.

 */

class CAknFepKeyCatcherInterface : public CCoeControl

    {

public:

    virtual void SetState(const TAknFepManagerState aState) = 0;

    virtual ~CAknFepKeyCatcherInterface();

    virtual void HandleChangeInFocus();

    };

/**

 * The Key Catcher sits sits on top of the control stack and does some basic, primary processing 

 * of all key presses. `

 */

class CAknFepKeyCatcher : 

						 public CAknFepKeyCatcherInterface

#ifdef RD_SCALABLE_UI_V2

						 ,public MCoeMessageMonitorObserver

#endif //RD_SCALABLE_UI_V2

    {

private:

    /** 

     * values for the flags required to maintain the internal

     * state of the Key Catcher during operation

     */

    enum

        {

        EFlagLongKeyPressHandled            =0x00000001,

        EFlagBlockAllLongKeyPressEvents     =0x00000002 

        };

public:

    /**

     * First phase construction

     *

     * @param aFepMan the Fep Manager object which owns this key catcher object. 

     */

    static CAknFepKeyCatcher* NewL(CAknFepManager& aFepMan);

    /**

     * Destructor

     */

    virtual ~CAknFepKeyCatcher();

    /**

     * from CCoeControl  

     * Key Catcher. Ignores keys when Fep is in null mode (no editor focused)

     * and does first stage filtering

     */

    virtual TKeyResponse OfferKeyEventL(const TKeyEvent& aKeyEvent, TEventCode aEventCode);

    /**

     * interface for FepMan to set the Key Catcher's internal state object

     */

    virtual void SetState(const TAknFepManagerState aState);

private:    

    /**

     * C++ Constructor

     */

    CAknFepKeyCatcher(CAknFepManager& aFepMan);

    /**

     * Second phase construction

     */

    void ConstructL();

    TKeyResponse HandleHashKeyJapaneseL(const TKeyEvent& aKeyEvent, TEventCode aEventCode);

    /**

     * from CCoeControl  

     * Handles a change to the control's resources.

     * @param aType A message UID value

     */

    void HandleResourceChange(TInt aType);

#ifdef RD_SCALABLE_UI_V2

	void MonitorWsMessage(const TWsEvent& aEvent);

#endif

    inline void SetFlag(TInt aFlag);

    inline void ClearFlag(TInt aFlag);

    inline TBool IsFlagSet(TInt aFlag) const;

    TKeyResponse CheckForSpecilacaseHandlingTosetKeyboardtype(const TKeyEvent& aKeyEvent, TEventCode aEventCode);

	TBool IsNaviKey(TUint aCode);

private:    

    // Data not owned

    CAknFepManager& iFepMan;

    TAknFepManagerState iKeyCatcherState;

    TUint iFlags;

    TKeyPressLength     iKeyPressLength;

    TInt iLongPressedScanCode;

    TBool iPreviousKeyeventNormal;

    TBool iPreviousKeyeventSpecial;

    TBool iRetainKeyBoardtypeFornextkeyevent;

    };

/**

 *  Sets aFlag bitfield in iFlags

 */

inline void CAknFepKeyCatcher::SetFlag(TInt aFlag)

    {

    iFlags|=aFlag;

    }

/**

 * Clears aFlag bitfield in iFlags

 */

inline void CAknFepKeyCatcher::ClearFlag(TInt aFlag)

    {

    iFlags&=~aFlag;

    }

/**

 * Returns ETrue if the aFlag bitfield in iFlags is set, EFalse if it

 * is clear

 */

inline TBool CAknFepKeyCatcher::IsFlagSet(TInt aFlag) const

    {

    return iFlags&aFlag;

    }

#endif

// End of file