/*

* 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:  Manager number entry for state

*

*/

#ifndef CPONENUMBERENTRYMANAGER_H

#define CPONENUMBERENTRYMANAGER_H

//INCLUDES

#include <e32base.h>

#include "cphonestate.h"

#include "tphonecmdparamboolean.h"

#include "tphonecmdparamkeyevent.h"

class CPhoneCbaManager;

class MPhoneViewCommandHandle;

class MPhoneStateMachine;

class MPhoneCustomization;

class CPhoneState;

class CEikonEnv;

/**

 * Class contains helper functions for NE content

 *

 * @lib phoneuicontrol

 * @since S60 v9.1

 */

NONSHARABLE_CLASS( CPhoneNumberEntryManager ) :  public CBase

    {

    public:

        /**

        * Creates new instance of CPhoneNumberEntryManager

        * @param aState: Handle to cphonestate.

        * @param aStateMachine: a state machine

        * @param aViewCommandHandle: Handle to the PhoneUIView.

        * @param aCustomization: Handle to customization.

        * @param aCbaManager: Handle to cphonecbamanager.

        * @return CPhoneNumberEntryManager* object  

        */

                    CPhoneState* aState,

                    MPhoneViewCommandHandle& aViewCommandHandle,

                    MPhoneStateMachine& aStateMachine,

                    MPhoneCustomization* aCustomization,

                    CPhoneCbaManager& aCbaManager );

        /**

        * Destructor.

        */

        virtual ~CPhoneNumberEntryManager();    

    public:

        /**

        * Stores the number entry content to the cache

        */

        void StoreNumberEntryContentL();

        /**

        * Restores the number entry content from the cache 

        */        

        void RestoreNumberEntryContentL();

        /**

        * Check if number entry content is stored

        * @param None

        * @return boolean value indicating that number entry content is stored

        */

        TBool IsNumberEntryContentStored();

        /**

        * Clears the number entry content cache

        */        

        void ClearNumberEntryContentCache();

        /**

        * Creates number entry

        */ 

        void CreateNumberEntryL();

        /**

        * Set Number Entry visibility.

        * @param aVisible ETrue if numberentry is wanted to be shown

        *                 (Note ETrue will set NE CBA's)

        *                 EFalse if numberentry isnt wanted to be shown

        *                 (Note EFalse doesnt affect to CBA's)

        */

        void SetNumberEntryVisibilityL( TPhoneCmdParamBoolean aVisible );

        /**

        * Passes create number entry command forward if NE can be created.

        */

        void HandleCreateNumberEntryL();

        /**

        * Check if number entry is used

        * @return boolean value indicating that number entry is used

        */

        TBool IsNumberEntryUsedL() const;

        /**

        * Check if number entry is visible

        * @return boolean value indicating that number entry is visible

        */

        TBool IsNumberEntryVisibleL() const;

        /**

         * Returns phone number from the phone number entry.

         * @return  Phone number

         */

        HBufC* PhoneNumberFromEntryLC() const;

        /**

        * Informs phoneengine that phone number has been edited i.e. phonenumber parser is run

        */

        void HandleNumberEntryEdited();

        /**

        * Handles key events in situations when there exists a number entry.

        * In this case number entry may be visible or hidden.

        * @param aKeyEvent - key event

        * @param aEventCode - event code

        */

        void KeyEventForExistingNumberEntryL(

                const TKeyEvent& aKeyEvent,

                TEventCode aEventCode );

        /**

        * Returns ETrue if alphanumeric characters are supported.

        * @param aKeyEvent Key event.

        * @return ETrue if alphanumeric chars are supported.

        */

        TBool IsAlphanumericSupportedAndCharInput(

                const TKeyEvent& aKeyEvent ) const;

        /**

        * Handle state-specific behaviour when number entry is cleared

        */

        void HandleNumberEntryClearedL();

        /**

         * Internal number entry handling methods.

         */

        void NumberEntryClearL() const;

        /**

         * Returns ETrue if NumberEntry is in numeric mode.

         */

        TBool NumberEntryInNumericModeL();

        /**

         * Toggles alpha numeric mode.

         */

        TBool NumberEntryToggleAlphaNumericModeL();

    private:

        /**

        * Checks is given key contains numeric charaters or if customization is used

        * alphanumeir letters

        */

        TBool IsValidAlphaNumericKey( const TKeyEvent& aKeyEvent,

                TEventCode aEventCode );

    private:

        /**

        * C++ default constructor.

        */

        CPhoneNumberEntryManager(

                CPhoneState* aState,

                MPhoneViewCommandHandle& aViewCommandHandle,

                MPhoneStateMachine& aStateMachine,

                MPhoneCustomization* aCustomization,

                CPhoneCbaManager& aCbaManager );

        /**

        * Symbian constructor

        */

        void ConstructL();

    private:

        CPhoneState* iState;

        MPhoneViewCommandHandle& iViewCommandHandle;

        MPhoneStateMachine& iStateMachine;

        MPhoneCustomization* iCustomization;

        CPhoneCbaManager& iCbaManager;

        /**

        * Cache for the number entry content

        */

        HBufC* iNumberEntryContent;

        /**

        * Internal variable for EikonEnv to avoid

        * use of static system calls

        */

        CEikonEnv& iEnv;

    };

#endif // CPONENUMBERENTRYMANAGER_H