--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/genericpositioningplugins/locationnpppsy/src/npppsysettinghandler.cpp	Tue Feb 02 01:06:48 2010 +0200
@@ -0,0 +1,337 @@
+/*
+* Copyright (c) 2006 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:  This is NPP PSY Positioning Plug-in ( PSY ).
+*
+*/
+
+
+
+// INCLUDE FILES
+#include <e32std.h>            
+#include <centralrepository.h>
+
+#include "npppsysettinghandler.h"
+#include "npppsystatushandler.h"
+#include "npppsyinternalcrkeys.h"
+#include "npppsylogging.h"
+#include "npppsypanic.h"
+#include "npppsy.hrh"
+
+// Constants
+// Sepperator used in setting
+_LIT( KNppPsySettingSeperator, " " );
+
+// The width of each PSY uid in PSY list
+const TInt KNppPsyPsyUidWidth = 8;
+
+// The length of buffer which is used for logging into file
+const TInt KBufferSize = 64;
+
+// PSY list length when the list is frozen and no fallback
+const TInt KNppPsyListLengthWhenFrozenNoFallback = 1;
+
+const TText KNppPsySpaceCharacter = ' ';
+
+// ========================== == MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CNppPsySettingHandler::CNppPsySettingHandler
+// C++default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CNppPsySettingHandler::CNppPsySettingHandler( CNppPsyStatusHandler& aStatusHandler )
+    : CActive( CActive::EPriorityStandard ),
+      iStatusHandler( aStatusHandler )
+    {
+    CActiveScheduler::Add( this );
+    }
+
+
+// -----------------------------------------------------------------------------
+// CNppPsySettingHandler::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CNppPsySettingHandler::ConstructL()
+    {
+    TRACESTRING( "CNppPsySettingHandler::ConstructL start" )
+    //Central repository
+    iRepository = CRepository::NewL( KCRUidNppPsy );
+
+    //Start notification
+    iRepository->NotifyRequest( KNppPsyPsyList, iStatus );
+    SetActive();
+    
+    //Parse settings
+    ParseSettingL( iListFrozen, iPsyList );
+
+    //Check if key value is changed in ROM key
+    ValidateRomKeyValueL();
+
+    //Check if the list is empty
+    iStatusHandler.SetPsyListStatus( iPsyList.Count() != 0 );
+    
+    TRACESTRING( "CNppPsySettingHandler::ConstructL end" )
+    }
+
+
+// -----------------------------------------------------------------------------
+// CNppPsySettingHandler::NewL
+// Two - phased constructor.
+// -----------------------------------------------------------------------------
+//
+CNppPsySettingHandler* CNppPsySettingHandler::NewL( 
+        CNppPsyStatusHandler& aStatusHandler )
+    {
+    CNppPsySettingHandler* self = new( ELeave ) 
+        CNppPsySettingHandler( aStatusHandler );
+    
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+
+    return self;
+    }
+
+    
+// -----------------------------------------------------------------------------
+// CNppPsySettingHandler::~CNppPsySettingHandler
+// -----------------------------------------------------------------------------
+//
+CNppPsySettingHandler::~CNppPsySettingHandler()
+    {
+    Cancel();
+    
+    delete iRepository;
+    
+    iPsyList.Close();
+    
+    TRACESTRING( "CNppPsySettingHandler:: destructed" )
+    }
+
+
+// -----------------------------------------------------------------------------
+// CNppPsySettingHandler::GetPsyListL
+// -----------------------------------------------------------------------------
+//
+void CNppPsySettingHandler::GetPsyListL( RArray < TUid> &aList )
+    {
+    aList.Reset();
+    TInt count = iPsyList.Count();
+    
+    if(iListFrozen == ENppPsyPsyListFrozenNoFallback)
+        {
+        //If list is frozen and no fallback, we return only the first PSY
+        count = ( count == 0 ? 0 : KNppPsyListLengthWhenFrozenNoFallback );
+        }
+        
+   TBuf<KBufferSize> buffer;
+   buffer.Copy(_L("Get PSY List..."));
+   TRACETEXT(buffer)
+    for ( TInt i = 0; i < count; i++ )
+        {
+        User::LeaveIfError( aList.Append( iPsyList[i] ) );
+	   
+	    buffer.Copy(iPsyList[i].Name());
+	    TRACETEXT(buffer)
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CNppPsySettingHandler::MovePsyLast
+// -----------------------------------------------------------------------------
+//
+void CNppPsySettingHandler::MovePsyLast( TUid aPsy )
+    {
+    if ( !iListFrozen )
+        {
+        TInt index = iPsyList.Find( aPsy );
+        if ( index != KErrNotFound )
+            {
+            iPsyList.Remove( index );
+            if ( iPsyList.Append( aPsy ) == KErrNone )
+                {
+                WriteSetting();
+                }
+            }
+        }
+
+    }
+
+// -----------------------------------------------------------------------------
+// CNppPsySettingHandler::RemovePsy
+// -----------------------------------------------------------------------------
+//
+void CNppPsySettingHandler::RemovePsy( TUid aPsy )
+    {
+    TInt index = iPsyList.Find( aPsy );
+    if ( index != KErrNotFound )
+        {
+        iPsyList.Remove( index );
+        WriteSetting();
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CNppPsySettingHandler::RunL
+// -----------------------------------------------------------------------------
+//
+void CNppPsySettingHandler::RunL()
+    {
+    ParseSettingL( iListFrozen, iPsyList );
+
+    //Check if the list is empty
+    iStatusHandler.SetPsyListStatus( iPsyList.Count() != 0 );
+
+    //issue another request
+    iRepository->NotifyRequest( KNppPsyPsyList, iStatus );
+    SetActive();
+    }
+        
+// -----------------------------------------------------------------------------
+// CNppPsySettingHandler::DoCancel
+// -----------------------------------------------------------------------------
+//
+void CNppPsySettingHandler::DoCancel()
+    {
+    if ( iRepository )
+        {
+        iRepository->NotifyCancelAll(); //error ignored
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CNppPsySettingHandler::RunError
+// -----------------------------------------------------------------------------
+//
+TInt CNppPsySettingHandler::RunError( TInt aError )
+    {
+    //This function may be called when PSY list is corrupted
+    if ( aError != KErrNoMemory && aError != KErrCancel )
+        {
+        iStatusHandler.SetPsyListStatus( EFalse );
+        }
+        
+    //issue another request
+    iRepository->NotifyRequest( KNppPsyPsyList, iStatus );
+    SetActive();
+
+    return KErrNone;
+    }
+
+// -----------------------------------------------------------------------------
+// CNppPsySettingHandler::ParseSettingL
+// -----------------------------------------------------------------------------
+//
+void CNppPsySettingHandler::ParseSettingL(
+            TInt& aListFrozen, 
+            RArray < TUid >& aPsyList )
+    {
+    TBuf < KNppPsyPsyListMaxLength > setting;
+    User::LeaveIfError( iRepository->Get( KNppPsyPsyList, setting ) );
+
+    TRACESTRING("PSY List from CenRep...")
+    TRACETEXT(setting)
+    //Reset list
+    aPsyList.Reset();
+
+    TLex lex( setting );
+    lex.SkipSpace();
+    TInt frozen;
+    User::LeaveIfError( lex.Val( frozen ) ); //frozen status
+    aListFrozen = frozen;
+
+    lex.SkipSpace();
+    TUint32 psyUid;
+    while ( !lex.Eos() )
+        {
+        User::LeaveIfError( lex.Val( psyUid, EHex ) );
+        User::LeaveIfError( aPsyList.Append( TUid::Uid( psyUid ) ) );
+        lex.SkipSpace();
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CNppPsySettingHandler::ValidateRomKeyValueL
+// -----------------------------------------------------------------------------
+//
+void CNppPsySettingHandler::ValidateRomKeyValueL()
+    {
+	TInt romListFrozen;
+    RArray < TUid > romPsyList;
+    CleanupClosePushL(romPsyList);
+
+	TBuf < KNppPsyPsyListMaxLength > setting;
+	User::LeaveIfError( iRepository->Get( KNppPsyPsyList, setting ) );
+	setting.TrimRight();
+	setting.Append(KNppPsySpaceCharacter);
+	User::LeaveIfError(iRepository->Set( KNppPsyPsyList,setting ));
+	
+    iRepository->Reset( KNppPsyPsyList );
+    ParseSettingL( romListFrozen, romPsyList );
+    
+    RemoveDuplicatePsyUid(iPsyList,romPsyList);
+	iListFrozen = romListFrozen;
+	
+    CleanupStack::PopAndDestroy(&romPsyList);
+    }
+
+// -----------------------------------------------------------------------------
+// CNppPsySettingHandler::WriteSetting
+// -----------------------------------------------------------------------------
+//
+void CNppPsySettingHandler::WriteSetting()
+    {
+    TBuf < KNppPsyPsyListMaxLength > setting;
+
+    //Frozen status
+    setting.AppendNum( iListFrozen );
+    setting.Append( KNppPsySettingSeperator );
+
+    TInt count = iPsyList.Count();
+    for ( TInt i = 0; i < count; i++ )
+        {
+        setting.AppendNumFixedWidth( iPsyList[i].iUid, EHex, KNppPsyPsyUidWidth );
+        setting.Append( KNppPsySettingSeperator );
+        }
+        
+	TRACESTRING("Writing PSY List...")
+	TRACETEXT(setting)
+ 
+    iRepository->Set( KNppPsyPsyList, setting ); //error ignored
+    }
+
+// -----------------------------------------------------------------------------
+// CNppPsySettingHandler::RemoveDuplicatePsyUid
+// -----------------------------------------------------------------------------
+//
+void CNppPsySettingHandler::RemoveDuplicatePsyUid(
+            RArray < TUid >& aToPsyList ,
+            RArray < TUid >& aFromPsyList )
+    {
+    
+	    TInt count = aFromPsyList.Count();
+	    for ( TInt i = 0; i < count; i++ )
+	        {
+                TInt index = aToPsyList.Find( aFromPsyList[i] );
+	            if (  index == KErrNotFound )
+        	  	{
+        	  		aToPsyList.Append( aFromPsyList[i] );		
+        	  	}
+	        }
+	    WriteSetting();    
+    }
+    
+//  End of File