// Copyright (c) 2002-2009 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 __LOGVIEWWINDOWCHANGEOBSERVER_H__

#define __LOGVIEWWINDOWCHANGEOBSERVER_H__

// System includes

#include <e32base.h>

// User includes

#include "LogViewChangeObserverInternal.h"

// Classes referenced

class RLogSession;

/////////////////////////////////////////////////////////////////////////////////////////

// -----> CLogViewWindowChangeObserver (header)

/////////////////////////////////////////////////////////////////////////////////////////

NONSHARABLE_CLASS(CLogViewWindowChangeObserver) : public CBase, public MLogViewChangeObserverInternal

/**

@internalComponent

*/

	{

public:

	enum TType

		{

		ELogEventTypeAdd = 0,

		ELogEventTypeChange,

		ELogEventTypeDelete

		};

public:

	CLogViewWindowChangeObserver(MLogViewChangeObserverInternal& aObserver);

	~CLogViewWindowChangeObserver();

public:

	/**

	 * Request that the next change notification corresponding to the specified

	 * log id and change type is ignored.

	 */

	void IgnoreNextEventL(TLogId aId, TType aType);

private: // FROM MLogViewChangeObserver

	void HandleLogViewChangeEventAddedL(TLogId aId, TInt aViewIndex, TInt aChangeIndex, TInt aTotalChangeCount);

	void HandleLogViewChangeEventChangedL(TLogId aId, TInt aViewIndex, TInt aChangeIndex, TInt aTotalChangeCount);

	void HandleLogViewChangeEventDeletedL(TLogId aId, TInt aViewIndex, TInt aChangeIndex, TInt aTotalChangeCount);

private: // FROM MLogViewChangeObserverInternal

	void HandleLogViewChangeEventLogClearedL();

private:

	TInt Find(TLogId aId, TType aType) const;

private:

	class TIgnoreEvent

		{

	public:

		inline TIgnoreEvent(TLogId aId, TType aType) : iId(aId), iType(aType) { }

	public:

		TLogId iId;

		TType iType;

		};

private:

	MLogViewChangeObserverInternal& iObserver;

	RArray<TIgnoreEvent> iIgnoreStack;

	};

#endif