videocollection/hgmyvideos/src/CIptvResourceLoader.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 12 Mar 2010 15:43:00 +0200
branchRCL_3
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permissions -rw-r--r--
Revision: 201007 Kit: 201008
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/*
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:    Resource file loader for components that cannot use the*
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*/
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#include <e32base.h>
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#include <bautils.h>
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#include <coemain.h>
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#include "IptvDebug.h"
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#include "CIptvResourceLoader.h"
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_LIT( KIptvEDrive, "E:" );
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_LIT( KIptvFDrive, "F:" );
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_LIT( KIptvZDrive, "Z:" );
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_LIT( KIptvRsc, ".RSC" );
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_LIT( KIptvRxx, ".R" );
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const TInt KIptvLangCodeWidth2( 2 );
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const TInt KIptvLangExtLength( 10 );
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// ---------------------------------------------------------
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// CIptvResourceLoader::NewL
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// Two-phased constructor.
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// ---------------------------------------------------------
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//
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CIptvResourceLoader* CIptvResourceLoader::NewL( CCoeEnv& aCoeEnv )
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    {
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    IPTVLOGSTRING_LOW_LEVEL( "CIptvResourceLoader::NewL" );
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    CIptvResourceLoader* self = new( ELeave ) CIptvResourceLoader( aCoeEnv );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop( self );
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    return self;
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    }
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// ---------------------------------------------------------
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// CIptvResourceLoader::CIptvResourceLoader
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// C++ default constructor
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// ---------------------------------------------------------
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//
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CIptvResourceLoader::CIptvResourceLoader( CCoeEnv& aCoeEnv )
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  : iCoeEnv( aCoeEnv )
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    {
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    // None
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    }
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// ---------------------------------------------------------
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// CIptvResourceLoader::ConstructL
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// Symbian 2nd phase constructor can leave.
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// ---------------------------------------------------------
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//
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void CIptvResourceLoader::ConstructL()
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    {    
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    // None
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    }
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// ---------------------------------------------------------
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// CIptvResourceLoader::~CIptvResourceLoader
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// Destructor
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// -----------------------------------------------------------------------------
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//
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CIptvResourceLoader::~CIptvResourceLoader()
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    {        
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    IPTVLOGSTRING_LOW_LEVEL( "CIptvResourceLoader::~CIptvResourceLoader" );
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    if ( iAdded )
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        {
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        iCoeEnv.DeleteResourceFile( iOffset );    
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        }
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    }
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// ---------------------------------------------------------
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// CIptvResourceLoader::AddResourceL
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// 
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// ---------------------------------------------------------
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//
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void CIptvResourceLoader::AddResourceL(
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    const TDesC& aResourceFile )
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    {
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    IPTVLOGSTRING_LOW_LEVEL( "CIptvResourceLoader::AddResourceL()" );
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    // Language
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    TLanguage language = User::Language();
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    IPTVLOGSTRING2_LOW_LEVEL( "CIptvResourceLoader::AddResourceL(), language: %d", language );
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    TBuf<KIptvLangExtLength> langExt( KNullDesC );
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    if ( language <= ELangOther ) // Langs 0 - 99
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        {
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        langExt.NumFixedWidth( language, EDecimal, KIptvLangCodeWidth2 );
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        }
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    else // Languages 100 - ELangMaximum
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        {
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        langExt.Num( language, EDecimal );
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        }
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    // File parser 
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    TParse* fp = new( ELeave ) TParse();
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    CleanupStack::PushL( fp );
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    User::LeaveIfError( fp->Set( aResourceFile, NULL, NULL ) );
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    // Search with language code
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    TFileName file( fp->Path() );
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    file.Append( fp->Name() );
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    file.Append( KIptvRxx );
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    file.Append( langExt );
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    TInt error( SearchResourceFile( file ) );
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parents:
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   120
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    // If no language file found, change ext to .RSC
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    if ( error )
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        {
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        file.Copy( fp->Path() );
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        file.Append( fp->Name() );
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        file.Append( KIptvRsc );
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        file.ZeroTerminate();
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        error = SearchResourceFile( file );
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        }
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   130
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    // See result
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    if ( error )
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        {
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        IPTVLOGSTRING_LOW_LEVEL( "CIptvResourceLoader::AddResourceL(), NO RESOURCE FILE ADDED!" );
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        iAdded = EFalse;
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        }                   
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    else
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parents:
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        {
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        iAdded = ETrue;
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   140
        }
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parents:
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   141
    
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    CleanupStack::PopAndDestroy( fp );
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    User::LeaveIfError( error );
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   144
    }
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parents:
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   145
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parents:
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// ---------------------------------------------------------
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// CIptvResourceLoader::SearchResourceFile
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// 
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// ---------------------------------------------------------
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//
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TInt CIptvResourceLoader::SearchResourceFile( const TDesC& aFile )
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    {
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    // Try to load resource file without drive letter
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    TInt error( AddResourceFile( aFile ) );
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parents:
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   155
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    if ( error )
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parents:
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        {
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        // Try to load resource file from E-drive
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        TFileName eDrive( KIptvEDrive );
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        eDrive.Append( aFile );
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parents:
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        error = AddResourceFile( eDrive );
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parents:
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   162
        }
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parents:
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   163
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   164
    if ( error )
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parents:
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   165
        {
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        // Try to load resource file from F-drive
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parents:
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        TFileName fDrive( KIptvFDrive);
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parents:
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        fDrive.Append( aFile );
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parents:
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        error = AddResourceFile( fDrive );
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parents:
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   170
        }
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parents:
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   171
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    if ( error )
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parents:
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        {
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        // Try to load resource file from Z-drive
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parents:
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        TFileName zDrive( KIptvZDrive);
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parents:
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        zDrive.Append( aFile );
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        error = AddResourceFile( zDrive );
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parents:
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   178
        }
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parents:
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   179
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   180
    // If language variant was not found, next try to find nearest one
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parents:
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   181
    if ( error )
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parents:
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   182
        {
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   183
        TFileName tempFile( aFile );
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parents:
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   184
        BaflUtils::NearestLanguageFile( iCoeEnv.FsSession(), tempFile );
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parents:
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   185
        // Did BaflUtil change the file
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parents:
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   186
        if ( tempFile.Compare( aFile ) != 0 )
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parents:
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   187
            {
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parents:
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   188
            error = AddResourceFile( tempFile );
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parents:
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   189
            }
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parents:
diff changeset
   190
        }
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parents:
diff changeset
   191
    
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parents:
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   192
    return error;
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parents:
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   193
    }
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parents:
diff changeset
   194
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parents:
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   195
// ---------------------------------------------------------
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parents:
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   196
// CIptvResourceLoader::AddResourceFile
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parents:
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   197
// 
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parents:
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   198
// ---------------------------------------------------------
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parents:
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   199
//
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   200
TInt CIptvResourceLoader::AddResourceFile( const TDesC& aFile )
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parents:
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   201
    {
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   202
    TInt error( KErrNotFound );
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parents:
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   203
    if ( BaflUtils::FileExists( iCoeEnv.FsSession(), aFile ) )
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parents:
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   204
        {
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parents:
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   205
        TRAP( error, iOffset = iCoeEnv.AddResourceFileL( aFile ) );
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parents:
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   206
        if ( error == KErrNone )
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parents:
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   207
            {
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parents:
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   208
            IPTVLOGSTRING2_LOW_LEVEL( "CIptvResourceLoader::AddResourceFile(), Added: %S", &aFile );    
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parents:
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   209
            }
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parents:
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   210
        }    
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parents:
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   211
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parents:
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   212
    return error;
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parents:
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   213
    }
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parents:
diff changeset
   214