diff -r 000000000000 -r f979ecb2b13e calendarui/controller/inc/calenstate.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/calendarui/controller/inc/calenstate.h	Tue Feb 02 10:12:19 2010 +0200
@@ -0,0 +1,124 @@
+/*
+* 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:  Calendar state machine
+*
+*/
+
+
+#ifndef CALENSTATE_H
+#define CALENSTATE_H
+
+// INCLUDES
+#include <e32base.h>
+#include <e32hashtab.h>
+#include <calennotificationhandler.h>       // TCalenNotification
+#include "calenstatemachine.h"              // TCalenStateIndex
+
+class CCalenController;
+class CCalenAsyncCallBack;
+class CCalenCallbackPackage;
+
+// CLASS DEFINITIONS
+
+/**
+* Calendar state
+*/
+class CCalenState : public CBase
+    {
+    public:
+        virtual TBool HandleCommandL( const TCalenCommand& aCommand,
+                                      CCalenStateMachine& aStateMachine ) = 0;
+        virtual void HandleNotificationL(const TCalenNotification& aNotification,
+                                          CCalenStateMachine& aStateMachine );
+             
+        virtual void HandleStateActivationL(CCalenStateMachine& aStateMachine);
+        
+        void CancelExecutingCmd();
+        
+        CCalenStateMachine::TCalenStateIndex PreviousState();
+        
+        void SetPreviousState(const CCalenStateMachine::TCalenStateIndex& aPreviousState );
+        
+        ~CCalenState();
+         
+	protected:
+	
+		/**
+         * Interface to set the current state
+         */
+		void SetCurrentState( CCalenStateMachine& aStateMachine,
+		                     const CCalenStateMachine::TCalenStateIndex& aState );
+		/**
+         * Interface to get the current state
+         */        
+        CCalenStateMachine::TCalenStateIndex CCalenState::GetCurrentState(
+        									CCalenStateMachine& aStateMachine);
+        
+        /**
+         * Interface to set the previous state through state machine
+         */
+		void SetCurrentPreviousState(CCalenStateMachine& aStateMachine, 
+							const CCalenStateMachine::TCalenStateIndex& aState);
+		
+		/**
+         * Interface to activate the current state
+         */
+		void ActivateCurrentStateL(CCalenStateMachine& aStateMachine);
+        
+        /**
+         * Interface to cancel the previous command
+         */
+		void CancelPreviousCmd(CCalenStateMachine& aStateMachine);						
+    
+    protected:
+        virtual void CommandExecuting();
+        void RequestCallbackL( MCalenCommandHandler* aCommandHandler, const TCalenCommand& aCommand );
+
+    protected:
+        void BaseConstructL();
+        CCalenState( CCalenController& aController, RHashSet<TCalenNotification>&  aOutstandingNotifications );
+
+    private:
+        class CCalenCallbackPackage : public CBase // going on heap
+            {
+            public: 
+                CCalenCallbackPackage( CCalenState* aSelf,
+                                       TCalenCommand aCommand,
+                                       MCalenCommandHandler* aCommandHandler);
+                
+                TBool HandleCallBack();
+                void SetCommandHandler( CCalenState* aSelf,
+                                        TCalenCommand aCommand,
+                                        MCalenCommandHandler* aCommandHandler);
+            private:
+                CCalenState* iSelf; // not own
+                TCalenCommand iCommand;
+                MCalenCommandHandler* iCommandHandler; // not own
+            };
+        static TInt CommandCallback( TAny* aCommandStruct );
+        CCalenCallbackPackage* iCallBackPackage;
+
+    protected:
+        CCalenController& iController;
+        RHashSet<TCalenNotification>& iOutstandingNotifications;
+        CCalenStateMachine::TCalenStateIndex iPreviousState;
+
+    private:
+        CCalenAsyncCallBack*     iCmdCallback;
+     };
+
+
+#endif // CALENSTATE_H
+
+// End of file