/*

* Copyright (c) 2007-2008 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:  Active object for handling toolbar commands

*

*/

// INCLUDE FILES

#include "CamCommandHandlerAo.h"

#include "camlogging.h"

#include <aknview.h>

// ============================ MEMBER FUNCTIONS ===============================

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

// CCamCommandHandlerAo::CCamCommandHandlerAo

// C++ constructor

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

//

CCamCommandHandlerAo::CCamCommandHandlerAo( CAknView* aView ) 

	:CActive( CActive::EPriorityStandard ), iView( aView )

    {

    }

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

// CCamCommandHandlerAo::~CCamCommandHandlerAo

// Destructor

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

//

CCamCommandHandlerAo::~CCamCommandHandlerAo()

	{

	Cancel();

    iCommandQueue.Close();

	}

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

// CCamCommandHandlerAo::NewL

// Two-phased constructor.

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

//

CCamCommandHandlerAo* CCamCommandHandlerAo::NewL( CAknView* aView )

	{

	CCamCommandHandlerAo* self = new( ELeave ) CCamCommandHandlerAo( aView );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;	

	}

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

// CCamCommandHandlerAo::ConstructL

// 2nd phase construction

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

//

void CCamCommandHandlerAo::ConstructL()

   {

   CActiveScheduler::Add( this );

   }

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

// CCamCommandHandlerAo::DoCancel

// Cancels the active object

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

//

void CCamCommandHandlerAo::DoCancel()

    {

    iCommandQueue.Close();    

    PRINT( _L("Camera => CCamCommandHandlerAo::DoCancel()") );

    }

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

// CCamCommandHandlerAo::RunL

// Checks the command from command queue and sends it to view

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

//

void CCamCommandHandlerAo::RunL()

	{

	if ( iCommandQueue.Count() )

    	{

        TInt command = iCommandQueue[ 0 ];

        iCommandQueue.Remove( 0 );

        iView->HandleCommandL( command );

        }

	}

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

// CCamCommandHandlerAo::RunError

// Called when an error has occurred.

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

//

TInt CCamCommandHandlerAo::RunError( TInt aError )

	{

	PRINT1( _L("Camera => CCamCommandHandlerAo::RunError( %d )"), aError );

	(void)aError; // remove compiler warning

	iCommandQueue.Close();

	PRINT( _L("Camera <= CCamCommandHandlerAo::RunError()"));	

	return KErrNone;

	}

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

// CCamCommandHandlerAo::HandleCommandL

// Adds the command to queue and sets active

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

//	

void CCamCommandHandlerAo::HandleCommandL( TInt aCommandId )

	{

    PRINT( _L("Camera => CCamCommandHandlerAo::HandleCommandL()"));

    TInt count = iCommandQueue.Count();

    if( count < 1 || iCommandQueue[ count - 1 ] != aCommandId )

        {

        iCommandQueue.AppendL( aCommandId );

        }     

    if ( !IsActive() )

   	    {

        TRequestStatus* statusPtr = &iStatus;

        User::RequestComplete( statusPtr, KErrNone ); 

    	SetActive();

  	    }

    PRINT( _L("Camera <= CCamCommandHandlerAo::HandleCommandL()"));

    }