diff -r 000000000000 -r 8466d47a6819 ipsservices/ipssosplugin/inc/ipsplgmsgkey.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipsservices/ipssosplugin/inc/ipsplgmsgkey.h	Thu Dec 17 08:39:21 2009 +0200
@@ -0,0 +1,101 @@
+/*
+* Copyright (c) 2007 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:  Key class for message sorting
+*
+*/
+
+
+#ifndef IPSPLGMSGKEY_H
+#define IPSPLGMSGKEY_H
+
+#include <e32base.h>          // TKey
+//<cmail>
+#include "CFSMailCommon.h"    // tfsmailsortcriteria
+//</cmail>
+
+class CMsvEntry;
+
+const TInt KMaxSubjectPrefixSeparatorLength = 8;
+
+/**
+ *  Comparison class for message objects
+ *
+ *  @code
+ *  @endcode
+ *
+ *  @lib ipssosplugin.lib
+ *  @since 
+ */
+class TIpsPlgMsgKey : public TKey
+    {
+
+public:
+
+    /**
+     * Constructor.
+     *
+     * @since 
+     * @param aFolderEntry  Folder to be sorted
+     * @param aSortCriteria Sorting criteria
+     */
+    TIpsPlgMsgKey( 
+        CMsvEntry& aFolderEntry,
+        const RArray<TFSMailSortCriteria>& aSortCriteria );
+        
+    /**
+     * Finds the offset from which the actual subject starts after 
+     * the prefixes
+     *
+     * @param aSubject Message subject string
+     * @return Offset from the beginning of the string. If the string
+     *         is not found, returns 0.
+     */
+    TInt FindSubjectStart( const TDesC& aSubject ) const;
+
+public:
+
+    /**
+     * From TKey
+     */
+    virtual TInt Compare(TInt aLeft, TInt aRight) const;
+
+    /**
+     * From TKey
+     */
+    virtual TAny* At(TInt anIndex) const;
+
+private:
+    // Prevent usage of the default constructor
+    TIpsPlgMsgKey();
+    
+private:
+    /**
+     * Compares the subject strings omitting the reply & forward prefixes
+     */
+    TInt CompareSubjectsL( const TDesC& aLeft, const TDesC& aRight ) const; // <cmail> change to leaving function
+
+private:
+    // Folder objects the messages of which are sorted. Not owned.    
+    CMsvEntry& iFolderEntry;
+    
+    // Sorting criteria
+    const RArray<TFSMailSortCriteria>& iSortingCriteria;
+    
+    // String which separates the subject prefixes (Re, Fwd etc) 
+    // from the actual subject
+    TBuf<KMaxSubjectPrefixSeparatorLength> iSubjectPrefixSeparator;
+    
+    };
+
+#endif // IPSPLGMSGKEY_H