/*

* 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:  Icon file provider.

 *

*/

// INCLUDE FILES

#include    "ccaiconfileprovider.h"

#include	<aknappui.h>

#include    <akniconutils.h>

_LIT( KMif, ".mif" );

_LIT( KMbm, ".mbm" );

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

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

// CCAIconFileProvider::CCAIconFileProvider

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

// might leave.

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

//

CCAIconFileProvider::CCAIconFileProvider( RFs& aFs )

        :   iFs( aFs )

    {

    }

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

// CCAIconFileProvider::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CCAIconFileProvider::ConstructL( const TDesC& aIconFilename )

    {

    iFilename = aIconFilename.AllocL();

    }

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

// CCAIconFileProvider::NewL

// Two-phased constructor.

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

//

CCAIconFileProvider* CCAIconFileProvider::NewL(

    RFs& aFs, const TDesC& aIconFilename )

    {

    CCAIconFileProvider* self = new( ELeave ) CCAIconFileProvider( aFs );

    CleanupStack::PushL( self );

    self->ConstructL( aIconFilename );

    CleanupStack::Pop( self );

    return self;

    }

// Destructor

CCAIconFileProvider::~CCAIconFileProvider()

    {

    delete iFilename;

    }

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

// CCAIconFileProvider::RetrieveIconFileHandleL

// (other items were commented in a header).

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

//

void CCAIconFileProvider::RetrieveIconFileHandleL(

    RFile& aFile, const TIconFileType aType )

    {

    if ( ! iFilename->Length() )

        {

        User::Leave( KErrNotFound );

        }

    // get the wanted extension

    TPtrC ext( aType == MAknIconFileProvider::EMbmFile ? KMbm : KMif );

    TInt extLen( ext.Length() );

    // and replace it to given filename

    HBufC* name = iFilename->AllocLC();

    TPtr namePtr( name->Des() );

    TInt nameLen( namePtr.Length() );

    if ( nameLen <= extLen )

        {

        // name was invalid

        User::Leave( KErrArgument );

        }

    namePtr.Replace( nameLen - extLen, extLen, ext );

    // load file

    TInt retCode = aFile.Open( iFs, namePtr, EFileRead | EFileShareReadersOnly );

    User::LeaveIfError( retCode );

    CleanupStack::PopAndDestroy( name );

    }

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

// CCAIconFileProvider::Finished

// (other items were commented in a header).

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

//

void CCAIconFileProvider::Finished()

    {

    // commit suicide because Avkon Icon Server said so

    delete this;

    }

//  End of File