sl@0: // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #ifndef __LOGSERVVIEWCHANGEMANAGER_H__
sl@0: #define __LOGSERVVIEWCHANGEMANAGER_H__
sl@0: 
sl@0: #include <logcli.h>
sl@0: #include "LogChangeDefinition.h"
sl@0: #include "LogCliServShared.h"
sl@0: #include "LogServBackupObserver.h"
sl@0: #include "LogServDatabaseChangeObserver.h"
sl@0: 
sl@0: // Classes referenced
sl@0: class MLogServDatabaseChangeInterface;
sl@0: 
sl@0: 
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: // -----> CLogServViewBase (header)
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: class CLogServViewChangeManager : public CBase
sl@0: 	{
sl@0: public:
sl@0: 	static CLogServViewChangeManager* NewL(MLogServDatabaseChangeInterface& aChangeInterface);
sl@0: 	~CLogServViewChangeManager();
sl@0: 
sl@0: private:
sl@0: 	CLogServViewChangeManager(MLogServDatabaseChangeInterface& aChangeInterface);
sl@0: 	void ConstructL();
sl@0: 
sl@0: public: // CHANGE TRANSACTION
sl@0: 
sl@0: 	/**
sl@0: 	 *
sl@0: 	 */
sl@0: 	void ChangeTransactionPrepare();
sl@0: 
sl@0: 	/**
sl@0: 	 *
sl@0: 	 */
sl@0: 	void ChangeTransactionSubmitL(TLogId aId, TLogDatabaseChangeType aType, TInt aViewIndex);
sl@0: 
sl@0: 	/**
sl@0: 	 *
sl@0: 	 */
sl@0: 	void ChangeTransactionCommitL();
sl@0: 
sl@0: 
sl@0: public: // CHANGE DELIVERY
sl@0: 
sl@0: 	/**
sl@0: 	 * Deliver the next available batch of changes. Panics if there
sl@0: 	 * aren't any.
sl@0: 	 */
sl@0: 	void DeliverChangesL(const RMessage2& aMessage);
sl@0: 
sl@0: public: // CHANGE REQUEST MANAGEMENT
sl@0: 
sl@0: 	/**
sl@0: 	 * The client has requested change notifications
sl@0: 	 */
sl@0: 	void RequestChangeNotifications(const RMessage2& aMessage);
sl@0: 
sl@0: 	/**
sl@0: 	 * The client has cancelled a previous change notification request
sl@0: 	 */
sl@0: 	void RequestChangeNotificationsCancel();
sl@0: 
sl@0: private:
sl@0: 	void NotifyClient();
sl@0: 	void CompleteClientChangeMessage(TInt aCompletionCode);
sl@0: 
sl@0: private:
sl@0: 	MLogServDatabaseChangeInterface& iChangeInterface;
sl@0: 
sl@0: 	/**
sl@0: 	 * Completed when the view contents change
sl@0: 	 */
sl@0: 	RMessagePtr2 iClientSideChangeMessage;
sl@0: 
sl@0: 	/**
sl@0: 	 * A buffer which contain the list of changed items
sl@0: 	 * for the current change transaction
sl@0: 	 */
sl@0: 	CLogChangeDefinition* iTransientChangeDefinition;
sl@0: 
sl@0: 	/**
sl@0: 	 * All the change 'packages' which are outstanding for this client
sl@0: 	 */
sl@0: 	RPointerArray<CBufBase> iPendingChanges;
sl@0: 
sl@0: 	};
sl@0: 
sl@0: #endif