// Copyright (c) 2008-2009 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:

 //

 #include <e32base.h>

 #include <bautils.h> 

 #include "srtreader.h"

 /** Default constructor */

 CSrtReader::CSrtReader()

     {

     }

 /** Allocates and constructs a srt subtitle source 

 @param aFilePath the SRT subtitle file path

 @return A pointer to the new object. 

 @leave If an error occurs, the method will leave with a system-wide error code. 

 */    

 CSrtReader* CSrtReader::NewL(const TDesC& aFilePath)

     {

     CSrtReader* self = new(ELeave) CSrtReader();

     CleanupStack::PushL(self);

     self->ConstructL(aFilePath);

     CleanupStack::Pop(self);

     return self;

     }

 /** Initialises the srt reader

 @leave If an error occurs, the method will leave with a system-wide error code.

 */

 void CSrtReader::ConstructL(const TDesC& aFilePath)

     {

     if (aFilePath.Length() < 1)

         {

         User::Leave(KErrArgument);

         }

     User::LeaveIfError(iFsSession.Connect());

     if (BaflUtils::FileExists(iFsSession, aFilePath))

         {

         User::LeaveIfError(iSource.Open(iFsSession, aFilePath, EFileRead));

         }

     else

         {

         User::Leave(KErrNotFound);

         }

     } 

 /** Destructor */

 CSrtReader::~CSrtReader()

     {

     iSource.Close();

     iFsSession.Close();

     }

 void CSrtReader::GetSupportedSubtitleLanguagesL(RArray<TLanguage>& /*aLanguages*/)

     {

     User::Leave(KErrNotSupported);    

     }

 TLanguage CSrtReader::SubtitleLanguageL()

     {

     User::Leave(KErrNotSupported);

     return ELangEnglish;      

     }

 void CSrtReader::SetSubtitleLanguageL(TLanguage /*aLanguage*/)

     {

     User::Leave(KErrNotSupported);  

     }

 TInt CSrtReader::SetPosition(TInt aPosition)

     {

     return iSource.Seek(ESeekStart, aPosition);

     }

 TInt CSrtReader::GetBuffer(TDes8& aBuffer)

     {

     TInt err = KErrNone;

     TInt bufLen = aBuffer.MaxLength();

     if (bufLen <= 0)

         {

         return KErrArgument;

         }

     err = iSource.Read(aBuffer);

     if (KErrNone == err)

         {

         if (0 == aBuffer.Length())

             {

             err = KErrEof;

             }        

         }

     return err;

     }