uiservicetab/vimpststorage/src/vimpststorageutils.cpp
branchRCL_3
changeset 29 9a48e301e94b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uiservicetab/vimpststorage/src/vimpststorageutils.cpp	Wed Sep 01 12:33:36 2010 +0100
@@ -0,0 +1,146 @@
+/*
+* Copyright (c) 2008 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:  Utils for storage modules.
+*
+*/
+
+
+#include "vimpststorageutils.h"
+#include "cvimpststoragemanagerfactory.h"
+#include "mvimpststorageserviceview.h"
+
+#include "uiservicetabtracer.h"
+#include "vimpstbuilddefinitions.h"
+
+#include <escapeutils.h>
+#include <collate.h>
+
+// needed to skip prefixes in domain-neutral comparison (TUint version)
+const TUint KColonUInt( ':' );
+
+// needed to skip domains in domain-neutral comparison (TUint version)
+const TUint KAtUInt( '@' );
+
+// "test character identity and accents, ignore case"
+const TInt KCollationLevel = 1;
+
+
+
+// defines how far we are going to search for the protocol part in user id
+const TInt KMaxLengthSearchProtPart = 4;
+
+// -----------------------------------------------------------------------------
+// VIMPSTStorageUtils::NeutralCompare
+// -----------------------------------------------------------------------------
+//
+TInt VIMPSTStorageUtils::NeutralCompare( const TDesC& aId1,
+        const TDesC& aId2, TBool aDomainNeutral )
+    {
+	TRACER_AUTO;
+    // points to user part of id
+    TPtrC ptrId1( aId1 );
+    TPtrC ptrId2( aId2 );
+
+	// Reduce looking for protocol part only to beginning of the WVID and
+    // skip protocol part ("anything:") in the beginning of the WVID
+    TInt colonPos1 = aId1.Left( KMaxLengthSearchProtPart ).Locate( KColonUInt );
+
+    // first id
+    if ( ( KErrNotFound != colonPos1 ) && ( aId1.Length() -1 != colonPos1 ) )
+        {
+        // contains ":", and it is not the last char
+        ptrId1.Set( aId1.Mid( colonPos1 + 1 ) );
+        }
+
+    TInt colonPos2 = aId2.Left( KMaxLengthSearchProtPart ).Locate( KColonUInt );
+
+    // second id
+    if ( ( KErrNotFound != colonPos2 ) && ( aId2.Length() -1 != colonPos2 ) )
+        {
+        // contains ":", and it is not the last char
+        ptrId2.Set( aId2.Mid( colonPos2 + 1 ) );
+        }
+
+    // find out if we have domains in the ids
+    TInt domainPos1( ptrId1.Locate( KAtUInt ) );
+    TInt domainPos2( ptrId2.Locate( KAtUInt ) );
+
+    TBool domainIn1( KErrNotFound != domainPos1 );
+    TBool domainIn2( KErrNotFound != domainPos2 );
+
+    // points to domains in the neutral id
+    TPtrC ptrDom1( KNullDesC );
+    TPtrC ptrDom2( KNullDesC );
+
+    // points to user parts in the neutral id
+    TPtrC ptrUid1( ptrId1 );
+    TPtrC ptrUid2( ptrId2 );
+
+    // separate user id parts and domain parts
+    if ( domainIn1 )
+        {
+        ptrDom1.Set( ptrId1.Mid( domainPos1 + 1) );
+        ptrUid1.Set( ptrId1.Mid( 0, domainPos1 ) );
+        }
+
+    if ( domainIn2 )
+        {
+        ptrDom2.Set( ptrId2.Mid( domainPos2 + 1) );
+        ptrUid2.Set( ptrId2.Mid( 0, domainPos2 ) );
+        }
+
+    // Create custom collation method to ignore punctuations
+    // index 0 gets the default method
+    TCollationMethod collation =
+        *Mem::CollationMethodByIndex( 0 );
+    collation.iFlags |= TCollationMethod::EIgnoreNone;
+
+    // domains are compared only when it is really needed
+    // check if userid part is the same in both ids   
+   
+    TInt idResult = ptrUid1.Compare( ptrUid2);
+    
+	if( idResult != 0 )
+		{
+		return idResult;
+		}
+
+	// id part is same, we have to compare domain
+
+    // If domain comparison is neutral and one id is without domain
+    // -> Domains are same. Other situation domainResult stays valid.
+    if( aDomainNeutral && ( domainIn1 ^ domainIn2 ) )
+        {
+        return 0;
+        }
+    else
+    	{
+    	return ptrDom1.CompareC( ptrDom2, KCollationLevel, &collation );
+    	}
+    }
+
+// -----------------------------------------------------------------------------
+// VIMPSTStorageUtils::DisplayId
+// -----------------------------------------------------------------------------
+//
+TPtrC VIMPSTStorageUtils::DisplayId( const TDesC& aId, TBool /*aListHiding*/ )
+    {
+	TRACER_AUTO;
+    TPtrC ret( aId );
+
+    return ret;
+    }
+
+
+// End of file