/*

* 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 "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:  AO that completes on a change in the volume property.  Used for 

*                the new Central Repository Server.  Used in EKA2 builds only

*

*/

//#include <SharedDataClient.h>

#include "RepositoryVolumeListener.h"

//#include <SharedDataKeys.h> //include this file when KSDUidMediaVolumeControl and KMediaVolume will be needed

//#include "epocdebug.h"

#include "MRepositoryVolumeObserver.h"

CRepositoryVolumeListener* CRepositoryVolumeListener::NewL(MRepositoryVolumeObserver* aObserver)

    {

    CRepositoryVolumeListener* self = new(ELeave) CRepositoryVolumeListener;

    CleanupStack::PushL(self);

    self->ConstructL(aObserver);

    CleanupStack::Pop(self);

    return self;

    }

CRepositoryVolumeListener::CRepositoryVolumeListener() : CActive(CActive::EPriorityStandard)

    {

    iState = EUnableToConnect;

    CActiveScheduler::Add(this) ; // add to active scheduler

    }

void CRepositoryVolumeListener::ConstructL(MRepositoryVolumeObserver* aObserver)

    {

    //

    // Open a connection to the Central Repository...

    iCenRepos = CRepository::NewL(KCRUidBrowser);

    if ( iCenRepos->NotifyRequest(KBrowserMediaVolumeControl, iStatus) == KErrNone )

        {

        iState = EConnected;	

        SetActive();

        }

    else

        {

        iState = EUnableToConnect;

        }

    iObserver = aObserver;

    }

CRepositoryVolumeListener::~CRepositoryVolumeListener()

    {

	Cancel();

	delete iCenRepos;  // close the client session

    }

//

// Get the current volume

TInt CRepositoryVolumeListener::GetCurrentVolume()

    {

    TInt currentVolume = 0;

    if ( iState == EUnableToConnect )

        {

    	//

    	// Connection to CenRepos not available so return the default volume

    	currentVolume = GetDefaultVolume();

        }

    else

        {

    	//

    	// Get the current volume

    	if ( iCenRepos->Get(KBrowserMediaVolumeControl, currentVolume) != KErrNone )

            {

            // Error retrieving value... return default value

            //PLAYEROUTPUT("*ERROR* CRepositoryVolumeListener::GetCurrentVolume() - Unable to retreive volume value");

            currentVolume = GetDefaultVolume();

            }

        }

    return currentVolume;

    }

//

// Return the default volume in this case 2/3 of the max support by the system

TInt CRepositoryVolumeListener::GetDefaultVolume()

    {

    TInt defaultVol = 0;

    #if defined(__WINS__)

        defaultVol = WINS_DEFAULT_VOLUME;

    #else

        defaultVol = HW_DEFAULT_VOLUME;

    #endif

    return defaultVol;

    }

void CRepositoryVolumeListener::DoCancel()

    {

    iCenRepos->NotifyCancel(KBrowserMediaVolumeControl);

    }

//

// Activated when the watched value updates.

void CRepositoryVolumeListener::RunL()

    {

    TInt currentVolume = 0;

    if (EUnableToConnect == iState)

        {

        return;

        }

    //

    // Get the current volume

    if ( iCenRepos->Get(KBrowserMediaVolumeControl, currentVolume) == KErrNone )

        {

        //

        // Inform the observer

        iObserver->VolumeChanged(currentVolume);

        if ( iCenRepos->NotifyRequest(KBrowserMediaVolumeControl, iStatus) == KErrNone )

            {

            SetActive();

            }

        else

            {

            iState = EUnableToConnect;

            }

        }

    else

        {

        //

        // error

        iState = EUnableToConnect;		

        }

    }