/*

* Copyright (c) 2007 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:  Defines the interface to CallAudioControlImpl

*

*/

#ifndef CALLAUDIOCONTROLIMPL_H

#define CALLAUDIOCONTROLIMPL_H

//  INCLUDES

#include <e32base.h>

#include <TelephonyAudioRouting.h>

#include <RoutingObserver.h>

#include <UplinkGainObserver.h>

#include <DownlinkVolumeObserver.h>

#include <MTelephonyAudioRoutingObserver.h>

#include <centralrepository.h>

#ifdef __SERIES60_31__

#include <TSEngInterface.h>

#include <RPhCltServer.h> 

#include <PhCltExt.h>       // link against PhoneClientExt.lib

#include <MediatorCommandInitiator.h>

#else

#include <CPhCltCommandHandler.h> // wasn't introduced until 3.2

#endif

#include "CallAudioControlUtility.h"

#include "CallAudioControl.h"

// FORWARD DECLARATIONS

class CRoutingObserver;

class CCallAudioControlProperty;

class CCallAudioControlRepository;

// CLASS DECLARATION

class CCallAudioControlImpl : public CBase

            , public MTelephonyAudioRoutingObserver

#ifdef __SERIES60_31__

            , public MMediatorCommandResponseObserver

#endif

    {

    public:  

        static CCallAudioControlImpl* NewL();

 		~CCallAudioControlImpl();

     	TInt AppendRoutingObserver( CRoutingObserver& aObserver ); 

     	TInt RemoveRoutingObserver( CRoutingObserver& aObserver );

		TInt AppendDownlinkVolumeObserver( CDownlinkVolumeObserver& aObserver );

		TInt RemoveDownlinkVolumeObserver( CDownlinkVolumeObserver& aObserver );

		TInt AppendUplinkGainObserver( CUplinkGainObserver& aObserver );

		TInt RemoveUplinkGainObserver( CUplinkGainObserver& aObserver );

		TInt GetAvailableOutputs( RArray<CCallAudioControl::TAudioOutput>& aAvailableOutputs );

		TInt GetOutput( CCallAudioControl::TAudioOutput& aOutput );

		TInt SetOutput( CCallAudioControl::TAudioOutput aOutput );

		TInt PreviousOutput( CCallAudioControl::TAudioOutput& aPrevOutput );

		TInt GetMinDownlinkVolume( TUint& aVolume );

		TInt GetDownlinkVolume( TUint& aVolume );

		TInt GetMaxDownlinkVolume( TUint& aVolume );

		TInt SetDownlinkVolume( TUint aVolume );

		TInt GetUplinkMute( TBool& aMute );

    	TInt SetUplinkMute( TBool aMute );

		void NotifyL(TAction aAction, TInt aError, TInt aValue);		    	

    private:

    	// For MTelephonyAudioRoutingObserver:

		void AvailableOutputsChanged( CTelephonyAudioRouting& aTelephonyAudioRouting/*, const TArray<CTelephonyAudioRouting::TAudioOutput>& aOutputs*/);

		void SetOutputComplete( CTelephonyAudioRouting& aTelephonyAudioRouting, TInt aErr);

  		void OutputChanged( CTelephonyAudioRouting& aTelephonyAudioRouting);   		  	

    	void ConstructL();

    	CCallAudioControlImpl();

		TInt GetVolume(); 

		TInt CheckIfOkToSetVolume();

		TInt VerifyAndSetVolume(TInt aVolume);

		TInt HandleCallStateChange();

		TInt HandleEPVolumeChange(TInt aVolume);

		TInt HandleIHFVolumeChange(TInt aVolume);

		TInt HandleMuteChange(TBool aMute);

		void NotifyVolumeObservers();

		void NotifyGainObservers();	

		void NotifyRoutingObservers(TUint aEvent, TInt aError);

		void NotifyRoutingObservers(TUint aEvent);		

		TInt SetMute(TBool aMute);

		TBool IsCallActive();		

#ifdef __SERIES60_31__

		// For MMediatorCommandResponseObserver

		void CommandResponseL( TUid /*aKMediatorSecondaryDisplayDomain*/, TUid /*aKTSECategory*/, 

                        TInt aCommandId,TInt aStatus, const TDesC8& /*aData*/ );				

#endif

    	// Data:

   		CTelephonyAudioRouting* iTelephonyAudioRouting;		

   		RPointerArray<CRoutingObserver> iRoutingObservers;

    	RPointerArray<CDownlinkVolumeObserver> iDownlinkVolumeObservers;

   		RPointerArray<CUplinkGainObserver> iUplinkGainObservers;    	  		

   		CCallAudioControl::TAudioOutput iCurrentAudioOutput;

   		CCallAudioControl::TAudioOutput iPreviousAudioOutput;

		CCallAudioControlProperty* iCsNotifier;

		CCallAudioControlRepository* iEpVolumeNotifier;

		CCallAudioControlRepository* iIhfVolumeNotifier;

		CCallAudioControlProperty* iMuteNotifier; 

#ifdef __SERIES60_31__

 		CMediatorCommandInitiator* 	iCommandInitiator;

	    RPhCltServer iPhoneClientServer;

	    RLibrary iLibrary;

#else

        CPhCltCommandHandler*   iPhoneClient;

#endif 			  		  		

   		TInt iCallState;

		TInt iVolume;

		/* Needed to prevent notification going to the client modifying mute state */

        TBool iPendingMuteSetOp; /* Holds true if there is a pending setmute opreation */

        TBool iRequestedMuteState; /* Holds the current mute state */

        TBool iPendingEpVolLevelOp;

        TBool iRequestedEpVolLevel;

        TBool iPendingIhfVolLevelOp;

        TBool iRequestedIhfVolLevel;

        TBool iWinsTesting;

    };

#endif      // CALLAUDIOCONTROLIMPL_H

// End of File