/*

* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:  Handles the volume, gets the initial volume from central

* 				 repository and monitors changes in volume.

*

*/

#include <centralrepository.h>	

#include <ProfileEngineSDKCRKeys.h>

#include <browseruisdkcrkeys.h>

#include "BavpLogger.h"

#include "BavpVolumeHandler.h"

#include "BavpVolumeObserver.h"

// -----------------------------------------------------------------------------

// CBavpVolumeHandler::NewL

// Two-phased constructor.

// ----------------------------------------------------------------------------

CBavpVolumeHandler* CBavpVolumeHandler::NewL( MBavpVolumeObserver* aObserver )

    {

	Log( EFalse, _L("CBavpVolumeHandler::NewL") );

    CBavpVolumeHandler* self = new (ELeave) CBavpVolumeHandler( aObserver );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

// ----------------------------------------------------------------------------

// CBavpVolumeHandler::CBavpVolumeHandler

// C++ default constructor can NOT contain any code, that

// might leave.

// ----------------------------------------------------------------------------

CBavpVolumeHandler::CBavpVolumeHandler( MBavpVolumeObserver* aObserver )

	: iObserver( aObserver )

    {

    }

// -----------------------------------------------------------------------------

// CBavpVolumeHandler::ConstructL

// Symbian 2nd phase constructor can leave.

// -----------------------------------------------------------------------------

void CBavpVolumeHandler::ConstructL()

    {		

	Log( EFalse, _L("CBavpVolumeHandler::ConstructL") );

	iCurrentVolume = KCRVolume5;

	iCurrentProfile = KGeneralProfile;

	// Get volume settings from central repository

	iVolumeRepository = CRepository::NewL( KCRUidBrowser );

    iVolumeRepository->Get( KBrowserMediaVolumeControl, iCurrentVolume );

    // If media volume key exists, watch it for changes

    iVolumeCRHandler = CCenRepNotifyHandler::NewL( *this, *iVolumeRepository, 

	    					    			       CCenRepNotifyHandler::EIntKey, 

											      (TUint32)KBrowserMediaVolumeControl);  

    iVolumeCRHandler->StartListeningL();

    iPreviousVolume = iCurrentVolume;

    // Get the current profile

	iProfileRepository = CRepository::NewL( KCRUidProfileEngine );

    iProfileRepository->Get( KProEngActiveProfile, iCurrentProfile );

    // Watch the Profile changes using a CR Notify Handler

    iProfileCRHandler = CCenRepNotifyHandler::NewL( *this, *iProfileRepository,

                                                    CCenRepNotifyHandler::EIntKey,

                                                    (TUint32)KProEngActiveProfile );

    iProfileCRHandler->StartListeningL();

    // Now that we have initial volume and profile, lets use them.

    // Check if we're in Silent profile or Meeting profile.

    if ( iCurrentProfile == KSilentProfile ||

         iCurrentProfile == KMeetingProfile )

        {

        // Mute the volume, we already saved the CR volume

        // as iPreviousVolume

        iCurrentVolume = KCRVolumeMute;

        }

    // Tell observer (BavpController) the initial volume

    if ( iObserver )

        {

        iObserver->UpdateVolume( iCurrentVolume ); 

        }

	}

// ----------------------------------------------------------------------------

// CBavpVolumeHandler::~CBavpVolumeHandler

//  Destructor

// ----------------------------------------------------------------------------

CBavpVolumeHandler::~CBavpVolumeHandler()

    {

	Log( EFalse, _L("CBavpVolumeHandler::~CBavpVolumeHandler") );

    // Clean up the media volume CR and CR Handler

	if ( iVolumeCRHandler )

        {

        iVolumeCRHandler->StopListening();

        delete iVolumeCRHandler;

        }

	delete iVolumeRepository;

    // Clean up the Profile CR and CR Handler

    if ( iProfileCRHandler )

        {

        iProfileCRHandler->StopListening();

        delete iProfileCRHandler;

        }

    delete iProfileRepository;

    }

// ----------------------------------------------------------------------------

// CBavpVolumeHandler::HandleNotifyInt()

// Handles volume and profile changes in CR

// ----------------------------------------------------------------------------

void CBavpVolumeHandler::HandleNotifyInt( const TUint32 aKeyId, TInt aNewValue )

    {

    if ( aKeyId == KBrowserMediaVolumeControl && aNewValue != iCurrentVolume )

        {

        // Media Volume property updated, and it changed

        if ( iCurrentProfile == KSilentProfile ||

             iCurrentProfile == KMeetingProfile )

            {

            // We got a new volume, and Profile is "quiet", save and use later

            iPreviousVolume = aNewValue;

            }

        else

            {

            // We got a new volume and Profile allows us to use it

            iCurrentVolume = aNewValue;

            }

        }

    else if ( aKeyId == KProEngActiveProfile && aNewValue != iCurrentProfile )

        {

        // Profile property updated, and it changed

        iCurrentProfile = aNewValue;

        // If we got a change in profile, mute or unmute        

        if ( iCurrentProfile == KSilentProfile ||

             iCurrentProfile == KMeetingProfile )

                {

                // Mute the volume

                iPreviousVolume = iCurrentVolume;

                iCurrentVolume = KCRVolumeMute;

                }

            else // Unmute the volume

                {

                iCurrentVolume = iPreviousVolume;

                }

            }

    // Tell observer the new volume

    if ( iObserver )

        {

        iObserver->UpdateVolume( iCurrentVolume ); 

        }

    }

// End of file