diff -r 000000000000 -r 094583676ce7 wvuing/wvuiave/AppSrc/MCAViewSwitcher.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wvuing/wvuiave/AppSrc/MCAViewSwitcher.h	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,119 @@
+/*
+* Copyright (c) 2003-2005 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:  General interface for switching chat-client views
+*
+*/
+
+
+#ifndef MCAVIEWSWITCHER_H
+#define MCAVIEWSWITCHER_H
+
+#include <e32cmn.h>
+#include "CAExternalInterface.h"
+//FORWARD DECLARATIONS
+class MCAStoredContact;
+class CCAStatusPaneHandler;
+class CEikButtonGroupContainer;
+
+
+// CLASS DECLARATION
+
+/**
+*  General interface for switching chat-client views
+*
+*  @lib chat.app
+*  @since 1.2
+*/
+class MCAViewSwitcher
+    {
+
+    public: // New functions
+
+        /**
+        * Activates the given view.
+        * @param TUid Id of the view to be activated
+        */
+        virtual void SwitchViewL( TUid aViewId ) = 0;
+
+        /**
+        * Activates the last view or given view if there is none.
+        * @param TUid Id of the view to be activated
+        */
+        virtual void SwitchViewBackL( TUid aViewId, TUid aCustomMessageId = KUidMainView,
+                                      const TDesC8& aCustomMessage = KNullDesC8 ) = 0;
+
+        /**
+         * Switches view to given viewid
+         * @param aViewId View id
+         * @param aCustomMessageId Custom message id
+         * @param aCustomMessage Custom message
+         */
+        virtual void SwitchViewL( TUid aViewId,
+                                  TUid aCustomMessageId,
+                                  const TDesC8& aCustomMessage ) = 0;
+
+        /**
+         * Register info to switch back to given view
+         * @param aViewId View id to register for back-function
+         * @param aCustomMessageId Custom message id
+         * @param aCustomMessage pointer to Custom message,
+         *                       ownership is transfered
+         * @param aNextView The view which is activated next
+         */
+        virtual void RegisterSwitchBack( TUid aViewId,
+                                         TUid aCustomMessageId,
+                                         HBufC8* aCustomMessage,
+                                         TUid aNextView ) = 0;
+
+        /**
+         * Deregisters switch back info.
+         * @since S60 v3.1
+         * @param aViewId Id of view to be deregistered
+         * @param aTarget Identification of view, wv id
+         *                if view is conversation view,
+         *                group id if view is chat view.
+         */
+        virtual void DeRegisterSwitchBack( TUid aViewId,
+                                           const TDesC& aTarget ) = 0;
+
+        /**
+         * Returns handle to statuspane
+         * @return Statuspane instance
+         */
+        virtual CCAStatusPaneHandler* CAStatusPane() const = 0;
+
+        /**
+         * Checks if view exists.
+         * @param aViewId View id
+         * @return ETrue, if exists, EFalse if not.
+         */
+        virtual TBool ViewExists( TUid aViewId ) = 0;
+
+        /**
+         * @return Active view's id
+         */
+        virtual TUid ActiveViewId() = 0;
+
+    protected:
+
+        /**
+         * Destructor
+         */
+        virtual ~MCAViewSwitcher() {};
+
+    };
+
+#endif      // MCAVIEWSWITCHER_H
+
+// End of File