landmarks/locationlandmarks/internalservices/src/EPos_PosLmFileFinder.cpp
changeset 0 667063e416a2
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/landmarks/locationlandmarks/internalservices/src/EPos_PosLmFileFinder.cpp	Tue Feb 02 01:06:48 2010 +0200
@@ -0,0 +1,126 @@
+/*
+* Copyright (c) 2005 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: Provides functions for finding resource files.
+*
+*
+*/
+
+
+// INCLUDE FILES
+#include <bautils.h>
+#include "EPos_PosLmFileFinder.h"
+
+// ================= MEMBER FUNCTIONS =======================
+
+// -----------------------------------------------------------------------------
+// PosLmFileFinder::ResourceFileL
+//
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+EXPORT_C TInt PosLmFileFinder::ResourceFileL(
+    TFileName* aFilename,
+    RFs& aFileSession,
+    const TDesC& aResourceFileName)
+    {
+    TInt ret = KErrNone;
+    TBool fileFound = EFalse;
+    
+    
+    // Check system drive first
+    TInt sysDrive = KErrNotFound;
+    if ( BaflUtils::GetSystemDrive( (TDriveNumber&) sysDrive  ) == KErrNone )
+        {
+        fileFound = IsResourceOnDriveL( sysDrive, aFilename, aFileSession, aResourceFileName );
+        }
+
+    if (!fileFound)
+        {
+        TDriveList driveList;
+        User::LeaveIfError(aFileSession.DriveList(driveList));
+
+        for ( TInt driveNumber = EDriveA; driveNumber <= EDriveZ && !fileFound; driveNumber++ )
+            {
+            // Skip system drive because it has already been checked.
+            if ( driveNumber == sysDrive )
+                {
+                driveNumber++;
+                }
+
+            if ( driveList[driveNumber] && !( driveList[driveNumber] & KDriveAttRemote ) ) // avoid remote drives
+                {
+                TDriveInfo drvInfo;
+                TInt err = aFileSession.Drive( drvInfo, driveNumber );
+
+                if ( !err && drvInfo.iType != EMediaNotPresent )
+                    {
+                    fileFound = IsResourceOnDriveL(driveNumber, aFilename, aFileSession, aResourceFileName);
+                    }
+                }
+            }
+        }
+
+	// If no *.R0* file is found, look for the .rsc file
+    if (!fileFound)
+        {
+        TParse parse;
+        parse.Set( aResourceFileName, NULL, NULL );
+    
+        TFindFile finder( aFileSession );
+        if ( finder.FindByDir( parse.NameAndExt(), parse.Path() ) == KErrNone )
+            {
+        	fileFound = ETrue;
+        	aFilename->Zero();
+        	aFilename->Append( finder.File() );
+            }
+        }
+
+    if (!fileFound)
+        {
+        // Cannot find file on any drive
+        ret = KErrNotFound;
+        }
+
+    return ret;
+    }
+
+// -----------------------------------------------------------------------------
+// PosLmFileFinder::IsResourceOnDriveL
+//
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+TBool PosLmFileFinder::IsResourceOnDriveL(
+    TInt aDrive,
+    TFileName* aFilename,
+    RFs& aFileSession,
+    const TDesC& aResourceFileName)
+    {
+    TFileName* oldFilename = new (ELeave) TFileName();
+    CleanupStack::PushL(oldFilename);
+
+    TDriveUnit unit(aDrive);
+    aFilename->Copy(unit.Name());
+    aFilename->Append(aResourceFileName);
+    oldFilename->Copy(*aFilename);
+    BaflUtils::NearestLanguageFile(aFileSession, *aFilename);
+
+    TBool fileFound = (aFilename->Compare(*oldFilename) != 0);
+
+    CleanupStack::PopAndDestroy(oldFilename);
+
+    return fileFound;
+    }
+
+//  End of File