mtpfws/mtpfw/src/ruidmapper.cpp
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     1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 //
       
    15 
       
    16 #include <barsc.h> 
       
    17 #include <barsread.h>
       
    18 #include "ruidmapper.h"
       
    19 #include <framework.rsg>
       
    20 _LIT(KFrameworkFilename, "\\resource\\mtp\\framework.rsc");
       
    21 
       
    22 void RUidMapping::ReadFromResourceFileL()
       
    23 	{
       
    24 	RFs 	Fs;
       
    25 	User::LeaveIfError(Fs.Connect());
       
    26 	CleanupClosePushL(Fs); 
       
    27 	const TDriveName driveName(TDriveUnit(EDriveZ).Name());
       
    28 	HBufC* filename = HBufC::NewLC(KMaxDriveName + 
       
    29 									KFrameworkFilename().Length() );
       
    30 	
       
    31 	TPtr pFileName = filename->Des();	
       
    32 	pFileName.Append(driveName);
       
    33 	pFileName.Append(KFrameworkFilename);	
       
    34 	
       
    35 	// Reading from resource file  
       
    36 	RResourceFile resourceFile;
       
    37 	resourceFile.OpenL(Fs, *filename);
       
    38 	
       
    39 	CleanupClosePushL(resourceFile);  
       
    40 	TResourceReader resourceReader;
       
    41 	MappingStruct st;
       
    42 	HBufC8* buffer = resourceFile.AllocReadLC(R_ELEMENTS_INFO); 
       
    43 	resourceReader.SetBuffer(buffer);
       
    44 	const TInt numberOfEntries=resourceReader.ReadInt16();
       
    45 	for(TInt count =0;count<numberOfEntries ; count++)
       
    46 		{
       
    47 		st.dpUid=resourceReader.ReadInt32();
       
    48 			
       
    49 		TInt entries = resourceReader.ReadInt16();
       
    50 		for (TInt n = 0 ; n < entries; ++n)
       
    51 			{
       
    52 			TUint transportId(resourceReader.ReadInt32());
       
    53 			st.iTransportUidList.Append(transportId);
       
    54 			}
       
    55 		InsertToMappingStruct(st);	
       
    56 		}
       
    57 	
       
    58 	CleanupStack::PopAndDestroy(4, &Fs);
       
    59 	}
       
    60 	
       
    61 
       
    62 RUidMapping::RUidMapping() 
       
    63 	{
       
    64 	
       
    65 	}
       
    66 
       
    67 void RUidMapping::Close()
       
    68 	{
       
    69 	iMappingStruct.Close();
       
    70 	}
       
    71 
       
    72 void RUidMapping::Open()
       
    73 	{
       
    74 	iMappingStruct.Reset();
       
    75 	}
       
    76 
       
    77 void RUidMapping::InsertToMappingStruct(MappingStruct& aRef)
       
    78 	{
       
    79 	iMappingStruct.Append(aRef);
       
    80 	}
       
    81 	
       
    82 TBool RUidMapping::GetSupportedTransport(const TUint& aDPUid,const TUint& aTransportUid)
       
    83 	{
       
    84 	TBool found = ETrue;
       
    85 	TInt count = iMappingStruct.Count();
       
    86 	for(TInt i=0 ; i<count ; i++)
       
    87 		{
       
    88 		if(iMappingStruct[i].dpUid == aDPUid)
       
    89 			{
       
    90 			if(iMappingStruct[i].iTransportUidList.Find(aTransportUid)<0)
       
    91 				{
       
    92 				found = EFalse;
       
    93 				return found;
       
    94 				}
       
    95 			
       
    96 			}
       
    97 		}
       
    98 	return found;
       
    99 	}
       
   100