// 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 PBAPCHEXPORTER_H

#define PBAPCHEXPORTER_H

#include <e32base.h>

#include "pbapoperation.h"

#include "pbaprequest.h"

#include "pbapexporter.h"

#include "pbapchview.h"

// forward declarations

class CLogEvent;

class CLogFilter;

class CLogFilterList;

class CPbapLogViewEvent;

class CPbapExporterBase;

class CPbapChExporter : public CPbapExporterBase

	{

public:

	~CPbapChExporter();

protected:

	CPbapChExporter(MVirtualFolderClient& aClient, 

					MPbapExporterCallback& aCallback,

					CPbapChView& aViewToExport,

					CPbapChView* aReadViewToExport = NULL, 

					TUint aStartIndex = 0,

					TInt aCount = 0);

	void ConstructL();

	/** Notify that call history events are about to be fetched from the log

	@param aNumberOfEvents number of log events which will be fetched

	@return EFalse to abort reading*/

	virtual TBool PrepareForFetchingL(TUint aNumberOfEvents);

	/** successfully fetched another call history event from the log

	@return EFalse if no more events should be fetched */

	virtual TBool EventFetchedL(const CLogEvent& aEvent, TInt aEventIndex) =0;

	/** Notify that fetching of call history events has completed*/

	virtual void FetchingCompleteL() =0;

private: // from CActive

	void RunL();

	void DoCancel();

	TInt RunError(TInt aError);

private:

	void StartExportL();

	void FetchLogEventsL();

	void FinaliseFetchLogEventsL();

private:

	enum TState

		{

		EIdle,

		EStartExport,

		EFetchingLogEvents

		};

private:	

	CPbapLogViewEvent* iLogView;

	CPbapLogViewEvent* iReadEventView;

	TInt iCurrentEventIndex;

	TState iState;

protected:

	TUint iStartIndex;

	TInt iCount;

	};

class CPbapChListingExporter : public CPbapChExporter

	{

public:

	static CPbapChListingExporter* NewL(MVirtualFolderClient& aClient, 

										MPbapExporterCallback& aCallback, 

										CPbapChView& aViewToExport,

										CPbapChView* aReadViewToExport,

										TUint aStartIndex, 

										TInt aCount);

protected:

	// from CPbapChExporter

	virtual TBool PrepareForFetchingL(TUint aNumberOfEvents);

	virtual TBool EventFetchedL(const CLogEvent& aEvent, TInt aEventIndex);

	virtual void FetchingCompleteL();

private:

	CPbapChListingExporter(MVirtualFolderClient& aClient, 

						MPbapExporterCallback& aCallback, 

						CPbapChView& aViewToExport,

						CPbapChView* aReadViewToExport,

						TUint aStartIndex, 

						TInt aCount);

	};

class CPbapChItemExporter : public CPbapChExporter

	{

public:

	static CPbapChItemExporter* NewL(MVirtualFolderClient& aClient, 

									MPbapExporterCallback& aCallback, 

									CPbapChView& aViewToExport,

									CPbapChView* aReadViewToExport,

									TUint aStartIndex, 

									TInt aCount, 

									TVCardVersion aFormat, 

									TUint64 aFilter);

protected:

	// from CPbapChExporter

	virtual TBool EventFetchedL(const CLogEvent& aEvent, TInt aEventIndex);

	virtual void FetchingCompleteL();

private:

	CPbapChItemExporter(MVirtualFolderClient& aClient, 

						MPbapExporterCallback& aCallback, 

						CPbapChView& aViewToExport,

						CPbapChView* aReadViewToExport,

						TUint aStartIndex, 

						TInt aCount, 

						TVCardVersion aFormat, 

						TUint64 aFilter);

private:

	TVCardVersion iFormat;

	TUint64 iFilter;

	};

class CPbapChSingleItemExporter : public CPbapChExporter

	{

public:

	static CPbapChSingleItemExporter* NewL(MVirtualFolderClient& aClient,

										   MPbapExporterCallback& aCallback,

										   CPbapChView& aViewToExport,

										   TInt aIndex,

										   TVCardVersion aFormat,

										   TUint64 aFilter);

protected:

	// from CPbapChExporter

	virtual TBool PrepareForFetchingL(TUint aNumberOfEvents);

	virtual TBool EventFetchedL(const CLogEvent& aEvent, TInt aEventIndex);

	virtual void FetchingCompleteL();

private:

	CPbapChSingleItemExporter(MVirtualFolderClient& aClient,

							  MPbapExporterCallback& aCallback,

							  CPbapChView& aViewToExport,

							  TInt aIndex,

							  TVCardVersion aFormat,

							  TUint64 aFilter);

private:

	TInt iIndex;

	TVCardVersion iFormat;

	TUint64 iFilter;

	};

class CPbapChCountExporter : public CPbapChExporter

	{

public:

	static CPbapChCountExporter* NewL(MVirtualFolderClient& aClient, 

									MPbapExporterCallback& aCallback,

									CPbapChView& aViewToExport,

									CPbapChView* aReadViewToExport);

protected:

	// from CPbapChExporter

	virtual TBool PrepareForFetchingL(TUint aNumberOfEvents);

	virtual TBool EventFetchedL(const CLogEvent& aEvent, TInt aEventIndex);

	virtual void FetchingCompleteL();

private:

	CPbapChCountExporter(MVirtualFolderClient& aClient, 

						MPbapExporterCallback& aCallback,

						CPbapChView& aViewToExport,

						CPbapChView* aReadViewToExport);

	};

#endif // PBAPCHEXPORTER_H