landmarks/locationlandmarks/internalservices/src/EPos_PosLmFileFinder.cpp
changeset 0 667063e416a2
equal deleted inserted replaced
-1:000000000000 0:667063e416a2
       
     1 /*
       
     2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). 
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description: Provides functions for finding resource files.
       
    15 *
       
    16 *
       
    17 */
       
    18 
       
    19 
       
    20 // INCLUDE FILES
       
    21 #include <bautils.h>
       
    22 #include "EPos_PosLmFileFinder.h"
       
    23 
       
    24 // ================= MEMBER FUNCTIONS =======================
       
    25 
       
    26 // -----------------------------------------------------------------------------
       
    27 // PosLmFileFinder::ResourceFileL
       
    28 //
       
    29 // (other items were commented in a header).
       
    30 // -----------------------------------------------------------------------------
       
    31 //
       
    32 EXPORT_C TInt PosLmFileFinder::ResourceFileL(
       
    33     TFileName* aFilename,
       
    34     RFs& aFileSession,
       
    35     const TDesC& aResourceFileName)
       
    36     {
       
    37     TInt ret = KErrNone;
       
    38     TBool fileFound = EFalse;
       
    39     
       
    40     
       
    41     // Check system drive first
       
    42     TInt sysDrive = KErrNotFound;
       
    43     if ( BaflUtils::GetSystemDrive( (TDriveNumber&) sysDrive  ) == KErrNone )
       
    44         {
       
    45         fileFound = IsResourceOnDriveL( sysDrive, aFilename, aFileSession, aResourceFileName );
       
    46         }
       
    47 
       
    48     if (!fileFound)
       
    49         {
       
    50         TDriveList driveList;
       
    51         User::LeaveIfError(aFileSession.DriveList(driveList));
       
    52 
       
    53         for ( TInt driveNumber = EDriveA; driveNumber <= EDriveZ && !fileFound; driveNumber++ )
       
    54             {
       
    55             // Skip system drive because it has already been checked.
       
    56             if ( driveNumber == sysDrive )
       
    57                 {
       
    58                 driveNumber++;
       
    59                 }
       
    60 
       
    61             if ( driveList[driveNumber] && !( driveList[driveNumber] & KDriveAttRemote ) ) // avoid remote drives
       
    62                 {
       
    63                 TDriveInfo drvInfo;
       
    64                 TInt err = aFileSession.Drive( drvInfo, driveNumber );
       
    65 
       
    66                 if ( !err && drvInfo.iType != EMediaNotPresent )
       
    67                     {
       
    68                     fileFound = IsResourceOnDriveL(driveNumber, aFilename, aFileSession, aResourceFileName);
       
    69                     }
       
    70                 }
       
    71             }
       
    72         }
       
    73 
       
    74 	// If no *.R0* file is found, look for the .rsc file
       
    75     if (!fileFound)
       
    76         {
       
    77         TParse parse;
       
    78         parse.Set( aResourceFileName, NULL, NULL );
       
    79     
       
    80         TFindFile finder( aFileSession );
       
    81         if ( finder.FindByDir( parse.NameAndExt(), parse.Path() ) == KErrNone )
       
    82             {
       
    83         	fileFound = ETrue;
       
    84         	aFilename->Zero();
       
    85         	aFilename->Append( finder.File() );
       
    86             }
       
    87         }
       
    88 
       
    89     if (!fileFound)
       
    90         {
       
    91         // Cannot find file on any drive
       
    92         ret = KErrNotFound;
       
    93         }
       
    94 
       
    95     return ret;
       
    96     }
       
    97 
       
    98 // -----------------------------------------------------------------------------
       
    99 // PosLmFileFinder::IsResourceOnDriveL
       
   100 //
       
   101 // (other items were commented in a header).
       
   102 // -----------------------------------------------------------------------------
       
   103 //
       
   104 TBool PosLmFileFinder::IsResourceOnDriveL(
       
   105     TInt aDrive,
       
   106     TFileName* aFilename,
       
   107     RFs& aFileSession,
       
   108     const TDesC& aResourceFileName)
       
   109     {
       
   110     TFileName* oldFilename = new (ELeave) TFileName();
       
   111     CleanupStack::PushL(oldFilename);
       
   112 
       
   113     TDriveUnit unit(aDrive);
       
   114     aFilename->Copy(unit.Name());
       
   115     aFilename->Append(aResourceFileName);
       
   116     oldFilename->Copy(*aFilename);
       
   117     BaflUtils::NearestLanguageFile(aFileSession, *aFilename);
       
   118 
       
   119     TBool fileFound = (aFilename->Compare(*oldFilename) != 0);
       
   120 
       
   121     CleanupStack::PopAndDestroy(oldFilename);
       
   122 
       
   123     return fileFound;
       
   124     }
       
   125 
       
   126 //  End of File