/*

* Copyright (c) 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: 

*     GSM-specific emergency state implementation.

*

*/

#ifndef CPHONEEMERGENCY

#define CPHONEEMERGENCY

// INCLUDES

#include "cphonegsmincall.h"

// FORWARD DECLARATIONS

// CLASS DECLARATION

/**

*  GSM-specific emergency single call state

*/

class CPhoneEmergency : public CPhoneGsmInCall

    {

    public:  

        /**

        * Destructor.

        */

        virtual ~CPhoneEmergency();

        /**

        * Creates the Emergency state class

        * @param aStateMachine: a state machine

        * @param aViewCommandHandle: handle to the PhoneUIView

        * @return an instance of class CPhoneEmergency

        */

        static CPhoneEmergency* NewL( 

            MPhoneStateMachine* aStateMachine, 

            MPhoneViewCommandHandle* aViewCommandHandle,

            MPhoneCustomization* aPhoneCustomization );

        /**

        * A message handling function for Phone Engine messages

        * @param aMessage Message from Phone Engine

        * @param aCallId Call id the message concerns

        */

        void HandlePhoneEngineMessageL(

            const TInt aMessage, 

            TInt aCallId );    

        /** 

        * Set startup status for state transition

        * @param aStartupInterrupted status

        */ 

        void SetStartupInterrupted( const TBool aStartupInterrupted );

    protected:

        /**

        * See CPhoneState

        */

        void HandleIdleL( TInt aCallId );

        /**

        * See CPhoneState

        */

        void HandleConnectedL( TInt aCallId );

        /**

        * See CPhoneState

        */

        void HandleConnectingL( TInt aCallId );

        /**

        * See CPhoneState

        */

        void HandleDialingL( TInt aCallId );

        /** 

        * Handle state-specific behaviour when number entry is cleared

        */ 

        virtual void HandleNumberEntryClearedL();

        /** 

        * Handle state-specific behaviour handleErrorL

        */ 

        void HandleErrorL( const TPEErrorInfo& aErrorInfo );

        virtual void UpdateInCallCbaL();

        TBool HandleCommandL( TInt aCommand );

        void DisconnectEmergencyCallL();

        void HandleKeyMessageL( 

            TPhoneKeyEventMessages aMessage,

            TKeyCode aCode );

        /**

        * By default EPOC constructor is private.

        */

        CPhoneEmergency( 

            MPhoneStateMachine* aStateMachine, 

            MPhoneViewCommandHandle* aViewCommandHandle,

            MPhoneCustomization* aPhoneCustomization );

        void HandleKeyEventL( 

            const TKeyEvent& aKeyEvent, 

            TEventCode aEventCode );

        /**

        * Sends key events to the phone engine

        * @param aKeyEvent a key event

        * @param aEventCode key event code

        */

        void SendKeyEventL(

            const TKeyEvent& aKeyEvent,

            TEventCode aEventCode );

        /**

        * ConstructL()

        */

        virtual void ConstructL();

        /**

        * Handle EPEMessageAudioOutputChanged

        */

        void HandleAudioOutputChangedL();

        /**

        * Handle initializing cba's

        */

        void UpdateSetupCbaL();

        /**

        * Handles commands from the Remote Control framework.

        * @param aOperationId The operation ID of the command.

        * @param aButtonAct The button action associated with the command.

        * @return ETrue if the event was handled, EFalse otherwise.

        */

        IMPORT_C virtual TBool HandleRemConCommandL( 

                    TRemConCoreApiOperationId aOperationId, 

                    TRemConCoreApiButtonAction aButtonAct );

    private:

        /**

        * Check whether UseEmergencyNoIhfCBA set should be used or not. 

        * @param aAudioOutput current audio output type.

        * @return ETrue if UseEmergencyNoIhfCBA should be used,

        * EFalse otherwise.

        */

        TBool UseEmergencyNoIhfCBA( const TPEAudioOutput& aAudioOutput ) const;

        /**

        * Check whether UseHandsetEmergencyCBA set should be used or not.

        * @param aAudioOutput current audio output type.

        * @return ETrue if UseHandsetEmergencyCBA should be used,

        * EFalse otherwise.

        */

        TBool UseHandsetEmergencyCBA( const TPEAudioOutput& aAudioOutput ) const;

        /**

        * Check whether the touch call handling is supported or not.

        * @return ETrue if KFeatureIdTouchCallHandling is supported,

        * EFalse otherwise.

        */

        TBool TouchCallHandlingSupported () const;

    private:

        /**

        * Is device lock on/off

        */

        TBool iDeviceLockOn;

        /**

        * If true update emergency call wait note

        */

        TBool iCallSetup;

        /**

        * Status of startup

        */

        TBool iStartupInterrupted;

        /**

        * If true show call summary ( termination ) note 

        */

        TBool iConnected;

    };

#endif // CPHONEEMERGENCY

// End of File