/*

* Copyright (c) 2005-2009 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: 

*       This class implements RemCon bearer pulgin interface.

*

*/

#include "bmbcmdlistener.h"

#include <btengprivatepskeys.h>

#include "debug.h"

#include "bmbpanic.h"

CBmbCmdListener* CBmbCmdListener::NewL(CBmbPlugin& aParent)

    {

    CBmbCmdListener* self = new(ELeave) CBmbCmdListener(aParent);

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	return self;

    }

CBmbCmdListener::~CBmbCmdListener()

    {

   	Cancel();

	iProperty.Close();

    }

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

// Send the response via PS, and starts listening the next command

// to be handled by this bearer.

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

//

void CBmbCmdListener::HandlingDataCompleted( const TDesC8& aResp )

    {

    // No better error handling than ignoring it.

    (void) iProperty.Set( aResp );

    // Handling previous received command has completed, this object 

    // is ready for picking up the next one, regardless of

    // response sent successfully or not.

    Subscribe();

    TRACE_FUNC

    }

CBmbCmdListener::CBmbCmdListener(CBmbPlugin& aParent) 

    : CActive(CActive::EPriorityStandard), iParent(aParent)

    {

    CActiveScheduler::Add(this);

    }

void CBmbCmdListener::ConstructL()

    {

	TRACE_FUNC

    LEAVE_IF_ERROR(iProperty.Attach(KPSUidBluetoothEnginePrivateCategory, KBTATCodec));

	Subscribe();

    }

void CBmbCmdListener::RunL()

    {

    TRACE_FUNC

	TInt err = iStatus.Int();

    // Error could be received from Subscribe when the PS

    // key is deleted due to powering BT off. In

    // this case, we just re-subscribe.

	if(err == KErrNone)

		{

	    iAtCmdBuf.Zero();

    	err = iProperty.Get(iAtCmdBuf);

    	if ( !err && iAtCmdBuf.Length() > 0 )

    	    {

    	    // An AT command to be processed by iParent.

    	    // At command handling completion, iParent will call this object

    	    // to send out response via HandlingDataCompleted()

    	    // which will subscribe to PS key update after the response has been 

    	    // sent.

    	    iParent.DataFromRemote(iAtCmdBuf);

    	    }

    	else

    	    {

    	    // No valid command in the PS key, re-subscribe.

    	    err = KErrArgument;

    	    }

	    }

	TRACE_ERROR((_L8("listener Status %d"), err))

	// If err is 0, this object shall not immediately listen to new commands via

    // Subscribe() function while a command is under processing by iParent. 

    // Btmonocmdhandler ensures not to deliver

    // the next command to this bearer while a command is being processed.	

	if(err != KErrNone)

        {

        Subscribe();

        }

    }

void CBmbCmdListener::DoCancel()

    {

    iProperty.Cancel();

    }

void CBmbCmdListener::Subscribe()

    {

    __ASSERT_ALWAYS( !IsActive(), Panic(EBmbPanicCmdListenerBadState) );

    iProperty.Subscribe(iStatus);

    SetActive();

    TRACE_FUNC

    }