videocollection/hgmyvideos/src/CIptvResourceLoader.cpp
branchRCL_3
changeset 10 ce5ada96ab30
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/videocollection/hgmyvideos/src/CIptvResourceLoader.cpp	Fri Mar 12 15:43:00 2010 +0200
@@ -0,0 +1,214 @@
+/*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:    Resource file loader for components that cannot use the*
+*/
+
+
+
+
+#include <e32base.h>
+#include <bautils.h>
+#include <coemain.h>
+#include "IptvDebug.h"
+#include "CIptvResourceLoader.h"
+
+_LIT( KIptvEDrive, "E:" );
+_LIT( KIptvFDrive, "F:" );
+_LIT( KIptvZDrive, "Z:" );
+_LIT( KIptvRsc, ".RSC" );
+_LIT( KIptvRxx, ".R" );
+const TInt KIptvLangCodeWidth2( 2 );
+const TInt KIptvLangExtLength( 10 );
+
+// ---------------------------------------------------------
+// CIptvResourceLoader::NewL
+// Two-phased constructor.
+// ---------------------------------------------------------
+//
+CIptvResourceLoader* CIptvResourceLoader::NewL( CCoeEnv& aCoeEnv )
+    {
+    IPTVLOGSTRING_LOW_LEVEL( "CIptvResourceLoader::NewL" );
+
+    CIptvResourceLoader* self = new( ELeave ) CIptvResourceLoader( aCoeEnv );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ---------------------------------------------------------
+// CIptvResourceLoader::CIptvResourceLoader
+// C++ default constructor
+// ---------------------------------------------------------
+//
+CIptvResourceLoader::CIptvResourceLoader( CCoeEnv& aCoeEnv )
+  : iCoeEnv( aCoeEnv )
+    {
+    // None
+    }
+
+// ---------------------------------------------------------
+// CIptvResourceLoader::ConstructL
+// Symbian 2nd phase constructor can leave.
+// ---------------------------------------------------------
+//
+void CIptvResourceLoader::ConstructL()
+    {    
+    // None
+    }
+
+// ---------------------------------------------------------
+// CIptvResourceLoader::~CIptvResourceLoader
+// Destructor
+// -----------------------------------------------------------------------------
+//
+CIptvResourceLoader::~CIptvResourceLoader()
+    {        
+    IPTVLOGSTRING_LOW_LEVEL( "CIptvResourceLoader::~CIptvResourceLoader" );
+    
+    if ( iAdded )
+        {
+        iCoeEnv.DeleteResourceFile( iOffset );    
+        }
+    }
+
+// ---------------------------------------------------------
+// CIptvResourceLoader::AddResourceL
+// 
+// ---------------------------------------------------------
+//
+void CIptvResourceLoader::AddResourceL(
+    const TDesC& aResourceFile )
+    {
+    IPTVLOGSTRING_LOW_LEVEL( "CIptvResourceLoader::AddResourceL()" );
+
+    // Language
+    TLanguage language = User::Language();
+    IPTVLOGSTRING2_LOW_LEVEL( "CIptvResourceLoader::AddResourceL(), language: %d", language );
+    TBuf<KIptvLangExtLength> langExt( KNullDesC );
+    if ( language <= ELangOther ) // Langs 0 - 99
+        {
+        langExt.NumFixedWidth( language, EDecimal, KIptvLangCodeWidth2 );
+        }
+    else // Languages 100 - ELangMaximum
+        {
+        langExt.Num( language, EDecimal );
+        }
+
+    // File parser 
+    TParse* fp = new( ELeave ) TParse();
+    CleanupStack::PushL( fp );
+    User::LeaveIfError( fp->Set( aResourceFile, NULL, NULL ) );
+
+    // Search with language code
+    TFileName file( fp->Path() );
+    file.Append( fp->Name() );
+    file.Append( KIptvRxx );
+    file.Append( langExt );
+    TInt error( SearchResourceFile( file ) );
+
+    // If no language file found, change ext to .RSC
+    if ( error )
+        {
+        file.Copy( fp->Path() );
+        file.Append( fp->Name() );
+        file.Append( KIptvRsc );
+        file.ZeroTerminate();
+        error = SearchResourceFile( file );
+        }
+
+    // See result
+    if ( error )
+        {
+        IPTVLOGSTRING_LOW_LEVEL( "CIptvResourceLoader::AddResourceL(), NO RESOURCE FILE ADDED!" );
+        iAdded = EFalse;
+        }                   
+    else
+        {
+        iAdded = ETrue;
+        }
+    
+    CleanupStack::PopAndDestroy( fp );
+    User::LeaveIfError( error );
+    }
+
+// ---------------------------------------------------------
+// CIptvResourceLoader::SearchResourceFile
+// 
+// ---------------------------------------------------------
+//
+TInt CIptvResourceLoader::SearchResourceFile( const TDesC& aFile )
+    {
+    // Try to load resource file without drive letter
+    TInt error( AddResourceFile( aFile ) );
+
+    if ( error )
+        {
+        // Try to load resource file from E-drive
+        TFileName eDrive( KIptvEDrive );
+        eDrive.Append( aFile );
+        error = AddResourceFile( eDrive );
+        }
+
+    if ( error )
+        {
+        // Try to load resource file from F-drive
+        TFileName fDrive( KIptvFDrive);
+        fDrive.Append( aFile );
+        error = AddResourceFile( fDrive );
+        }
+
+    if ( error )
+        {
+        // Try to load resource file from Z-drive
+        TFileName zDrive( KIptvZDrive);
+        zDrive.Append( aFile );
+        error = AddResourceFile( zDrive );
+        }
+
+    // If language variant was not found, next try to find nearest one
+    if ( error )
+        {
+        TFileName tempFile( aFile );
+        BaflUtils::NearestLanguageFile( iCoeEnv.FsSession(), tempFile );
+        // Did BaflUtil change the file
+        if ( tempFile.Compare( aFile ) != 0 )
+            {
+            error = AddResourceFile( tempFile );
+            }
+        }
+    
+    return error;
+    }
+
+// ---------------------------------------------------------
+// CIptvResourceLoader::AddResourceFile
+// 
+// ---------------------------------------------------------
+//
+TInt CIptvResourceLoader::AddResourceFile( const TDesC& aFile )
+    {
+    TInt error( KErrNotFound );
+    if ( BaflUtils::FileExists( iCoeEnv.FsSession(), aFile ) )
+        {
+        TRAP( error, iOffset = iCoeEnv.AddResourceFileL( aFile ) );
+        if ( error == KErrNone )
+            {
+            IPTVLOGSTRING2_LOW_LEVEL( "CIptvResourceLoader::AddResourceFile(), Added: %S", &aFile );    
+            }
+        }    
+
+    return error;
+    }
+