--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/harvester/common/inc/harvestereventmanager.h	Mon Jan 18 20:34:07 2010 +0200
@@ -0,0 +1,163 @@
+/*
+* Copyright (c) 2006-2009 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:  
+*/
+
+#ifndef HARVESTEREVENTMANAGER_H
+#define HARVESTEREVENTMANAGER_H
+
+#include <e32base.h>	// For CActive, link against: euser.lib
+#include <e32msgqueue.h>
+
+#include "harvestercommon.h"
+
+NONSHARABLE_CLASS( CHarvesterEventManager ) : public CBase
+	{
+public:
+	virtual ~CHarvesterEventManager();
+	
+	IMPORT_C static CHarvesterEventManager* GetInstanceL();	
+	IMPORT_C void ReleaseInstance();
+
+	/*
+	 * Increase event's item count
+	 * @param aHEObserverType Event type
+	 * @param aCount Increase to event's items
+	 */
+	IMPORT_C void IncreaseItemCount( HarvesterEventObserverType aHEObserverType, TUint aCount = 1 );
+
+	/*
+	 * Decrease event's item count
+	 * @param aHEObserverType Event type
+	 * @param aCount Decrease to event's items
+	 */
+	IMPORT_C TBool DecreaseItemCountL( HarvesterEventObserverType aHEObserverType, TUint aCount = 1 );
+	
+	/*
+	 * Get event's item count
+	 * @param aHEObserverType Event type
+	 * @return Event's item count
+	 */
+	IMPORT_C TUint ItemCount( HarvesterEventObserverType aHEObserverType );
+
+	/**
+	 * Send event to all matching observers.
+	 * @param aHEObserverType Event type
+	 * @param aHEState Event state
+	 * @param aItemsLeft Items left
+	 * @return Event sending error code
+	 */
+	IMPORT_C TInt SendEventL( HarvesterEventObserverType aHEObserverType, 
+			HarvesterEventState aHEState, TUint aItemsLeft = 0 );
+
+	/*
+	 * Register event observer. Leaves if registering fails.
+	 * @param aMessage Event observer's client side information
+	 */
+	IMPORT_C void RegisterEventObserverL( const RMessage2& aMessage );
+
+	/*
+	 * Unregister event observer. Returns error code if unregistering fails.
+	 * @param aMessage Event observer's client side information
+	 */
+	IMPORT_C TInt UnregisterEventObserver( const RMessage2& aMessage );
+	
+	/**
+	 * Get current state of event by event type
+	 * @param Event type
+	 * @return Currect state of event
+	 */
+	IMPORT_C HarvesterEventState CurrentState( HarvesterEventObserverType aHEObserverType );
+
+	/**
+	 * @deprecated Client generates own "Harvester Event Observer IDs"
+	 */
+	IMPORT_C TUint GetLastClientId();
+
+private:
+	/**
+	 * Server side event status.
+	 */
+	struct TEventStatus
+		{
+		HarvesterEventObserverType iObserverType;
+		HarvesterEventState iCurrentState;
+		TUint iItemsLeft;
+		};
+	
+	// C++ constructor
+	CHarvesterEventManager();
+
+	// Second-phase constructor
+	void ConstructL();
+
+	/**
+	 * Check if observer type contain wanted event type.
+	 * @param aObserverType Observer type
+	 * @param aEventType Event type
+	 * @return Does observer type contain wanted event type
+	 */
+	TBool CheckObserverType( TInt aObserverType, TInt aEventType );
+	
+	/**
+	 * Get wanted event by event type
+	 * @param aHEObserverType Wanted event type
+	 * @return Requested event or NULL
+	 */
+	TEventStatus* GetEventStatus( HarvesterEventObserverType aHEObserverType );
+	
+	/**
+	 * Send event to single observer.
+	 * @param aEventObserverInfo Observer to receive event
+	 * @param aHEObserverType Event type
+	 * @param aHEState Event state
+	 * @param aItemsLeft Items left
+	 * @return Event sending error code
+	 */
+	TInt SendSingleEvent( THarvesterEventObserverInfo& aEventObserverInfo, 
+			HarvesterEventObserverType aObserverType, 
+			HarvesterEventState aEventState, TUint aItemsLeft );
+
+private:
+
+	RArray<TEventStatus> iEventStatuses;
+	RPointerArray<THarvesterEventQueue> iEventQueues;
+	RPointerArray<THarvesterEventObserverInfo> iRegisteredObservers;
+	};
+
+/**
+* A helper class to store this singleton's static data.
+*/
+class CHarvesterEventManagerStaticData : public CBase
+    {
+    friend class CHarvesterEventManager;
+        
+    public:
+
+    	CHarvesterEventManagerStaticData( CHarvesterEventManager* aHEM ) : iHEM(aHEM), iRefCount(1)
+            {
+            }
+
+        virtual ~CHarvesterEventManagerStaticData()
+            {
+            delete iHEM;
+            }
+
+    protected:
+
+    	CHarvesterEventManager* iHEM;
+        TInt iRefCount;
+    };
+
+#endif // HARVESTEREVENTMANAGER_H