diff -r 6ca72c0fe49a -r a941bc465d9f wvuing/wvuiave/AppSrc/MCAMessageExtension.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wvuing/wvuiave/AppSrc/MCAMessageExtension.h	Wed Sep 01 12:31:13 2010 +0100
@@ -0,0 +1,172 @@
+/*
+* Copyright (c) 2004-2005 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:  Message extension interface
+*
+*/
+
+
+#ifndef MCAMESSAGEEXTENSION_H
+#define MCAMESSAGEEXTENSION_H
+
+//  INCLUDES
+#include <e32std.h>
+
+// FORWARD DECLARATIONS
+class CEikRichTextEditor;
+class TCursorSelection;
+class CRichText;
+
+// Type definitions for different smiley types
+enum TMessageExtensionTypes
+    {
+    EMessageExtensionSmiley = 0
+    };
+
+// CLASS DECLARATION
+
+/**
+*  Interface class for message extension classes
+*
+*  @lib chat.app
+*  @since 2.1
+*/
+class MCAMessageExtension
+    {
+    public:
+        /**
+         * Return type of Extension. Inherited message extension does not need
+         * information of type. It is only needed by handler of extensions and
+         * user of extension. That is why implementation is created in here.
+         * @since 2.1
+         * @return Type of extension
+         */
+        virtual TMessageExtensionTypes Type() const
+            {
+            return iType;
+            }
+
+        /**
+         * Destructor
+         * @since 2.1
+         */
+        virtual ~MCAMessageExtension() {};
+
+    protected:
+
+        /**
+         *	Constructor Inherited message extension does not need
+         *  information of type. It is only needed by handler of extensions and
+         *  user of extension. That is why implementation is created in here.
+         *  @since 2.1
+         *  @param aType Type of extension
+         */
+        MCAMessageExtension( TMessageExtensionTypes aType ) : iType( aType ) {}
+
+    public: //Interface methods
+        /**
+        * Adds extension to current position in Editor
+        * @param aEditor used editor
+        * @param aCancelled
+        * @since 2.1
+        */
+        virtual void InsertExtensionL( CEikRichTextEditor& aEditor,
+                                       TBool& aCancelled ) = 0;
+
+        /**
+        * Removes extension from given position in Editor
+        * @param aEditor used editor
+        * @param aPos    extension position in Editor
+        * @since 2.1
+        */
+        virtual void DeleteExtensionL( CEikRichTextEditor& aEditor,
+                                       TInt aPos ) = 0;
+
+        /**
+        * Converts smiley icons to string smileys
+        * @since 2.1
+        * @param aEditor    used editor
+        * @param aDes       Text from editor
+        */
+        virtual void ExtensionToStringL( CEikRichTextEditor& aEditor,
+                                         TDes& aDes ) = 0;
+
+        /**
+         *  Converts extension in selection area from strings to extensions.
+         *  Used for example for cut, copy, paste features.
+         *  @since 2.6
+         *  @param aEditor, Used editor
+         */
+        virtual void ConvertSelectionToExtensionL(
+            CEikRichTextEditor& aEditor ) = 0;
+
+        /**
+         *  Converts all the extensions in selection area from
+         *  strings to extensions.
+         *  @since 3.0
+         *  @param aRichText Rich text to be converted
+         *  @param aSelection Selection area
+         */
+        virtual void ConvertSelectionToExtensionL( CRichText& aRichText,
+                                                   TCursorSelection& aSelection ) = 0;
+
+        /**
+         *  Converts extension in selection area from extensions to strings.
+         *  Used for example for cut, copy, paste features.
+         *  @since 2.6
+         *  @param aEditor, Used editor
+         *  @param aPreserve, Preserve original status of extension
+         */
+        virtual void ConvertSelectionToStringL( CEikRichTextEditor& aEditor,
+                                                TBool aPreserve ) = 0;
+
+        /**
+         *  Reset extension counters.
+         *  @sinze 2.6
+         */
+        virtual void Reset() = 0;
+
+        /**
+         * Informs the extensions about changed size
+         * @param aSize
+         * @since 3.0
+         */
+        virtual void SizeChanged( TSize& aSize ) = 0;
+
+        /**
+         * Converts all the extensions in selection area from
+         * extensions to strings.
+         * @since S60 v3.1
+         * @param aEditor Used editor.
+         * @param aResultString Descriptor for converted string,
+         *                      caller is responsible to provide
+         *                      large enough descriptor.
+         * @param aSelectionAfterConversion Cursor selection after
+         *                      extensions are converted to strings.
+         * @param aPreserve Should we preserve original extension status.
+         */
+        virtual void ConvertSelectionToStringL(
+            CEikRichTextEditor& aEditor,
+            TDes& aResultString,
+            TCursorSelection& aSelectionAfterConversion,
+            TBool aPreserve ) = 0;
+
+    private:
+
+        // Type of extension
+        TMessageExtensionTypes iType;
+    };
+
+#endif      // MCAMESSAGEEXTENSION_H
+
+// End of File