// Copyright (c) 2004-2009 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 __FILE_ACCESS_H__

#define __FILE_ACCESS_H__

#include <caf/content.h>

#include <caf/data.h>

#include <mmf/common/mmcaf.h>

// Abstract class providing generic file access

class MGenericFile

	{

public:

	virtual ~MGenericFile();

	virtual TInt Seek(TSeek aSeekMode, TInt aPosition)=0;

	virtual TInt Read(TDes8& aDes,TInt aLength)=0;

	virtual void Read(TDes8& aDes, TInt aLength, TRequestStatus& aStatus)=0;

	virtual TInt Write(const TDesC8& aDes,TInt aLength)=0;

	virtual void Write(const TDesC8& aDes, TInt aLength, TRequestStatus& aStatus)=0;

	virtual TInt Size(TInt& aSize)=0;

	virtual TInt SetSize(TInt aSize)=0;

	virtual TInt EvaluateIntent(const ContentAccess::TIntent aIntent) const = 0;

	virtual TInt ExecuteIntent(const ContentAccess::TIntent aIntent) = 0;

	virtual TBool IsProtected()const = 0;

	// legacy file support - better to use Data()

	virtual RFile& FileL()=0;

	virtual TInt SetAgentProperty(ContentAccess::TAgentProperty aProperty, TInt aValue) = 0;

	virtual TInt Read(TInt aPosition, TDes8& aDes, TInt aLength, TRequestStatus& aStatus) = 0;

	// access to CData

    virtual TInt Data(ContentAccess::CData*& aData) = 0;

	};

// Provide RFile based file access - only now used for recording

class CF32File : public CBase, public MGenericFile

	{

public:

	static CF32File* NewL(RFs& aSession, TDesC& aPath, TUint aMode);	

	static CF32File* NewL(RFile& aFile);	

	void ConstructL(RFile& aFile);

	void ConstructL(RFs& aSession, TDesC& aPath, TUint aMode);

	virtual ~CF32File();

	// from MGenericFile

	virtual TInt Seek(TSeek aSeekMode, TInt aPosition);

	virtual TInt Read(TDes8& aDes,TInt aLength);

	virtual void Read(TDes8& aDes, TInt aLength, TRequestStatus& aStatus);

	virtual TInt Write(const TDesC8& aDes,TInt aLength);

	virtual void Write(const TDesC8& aDes, TInt aLength, TRequestStatus& aStatus);

	virtual TInt Size(TInt& aSize);

	virtual TInt SetSize(TInt aSize);

	virtual TInt EvaluateIntent(const ContentAccess::TIntent aIntent) const;

	virtual TInt ExecuteIntent(const ContentAccess::TIntent aIntent);

	virtual TBool IsProtected() const;

	virtual RFile& FileL();

	virtual TInt SetAgentProperty(ContentAccess::TAgentProperty, TInt aValue);

	virtual TInt Read(TInt aPosition, TDes8& aDes, TInt aLength, TRequestStatus& aStatus);

	virtual TInt Data(ContentAccess::CData*& aData);

private:

	CF32File();

private:

	RFs* iSession;	// not owned

	HBufC* iFilePath;

	RFile iFile;

	TBool iFileHandle;

	TInt iFileSize;

	};

// Provides content access framework based file access

class CContentFile : public CBase, public MGenericFile

	{

public:

	static CContentFile* NewL(RFs& aSession, const TDesC& aPath, const TDesC& aUniqueId, TUint aMode, TBool aEnableUI);

	void ConstructL(RFs& aSession, const TDesC& aPath, const TDesC& aUniqueId, TUint aMode, TBool aEnableUI);

	static CContentFile* NewL(RFile& aFile, const TDesC& aUniqueId, TBool aEnableUI);

	void ConstructL(RFile& aFile, const TDesC& aUniqueId, TBool aEnableUI);

	virtual ~CContentFile();

	// from MGenericFile

	virtual TInt Seek(TSeek aSeekMode, TInt aPosition);

	virtual TInt Read(TDes8& aDes,TInt aLength);

	virtual void Read(TDes8& aDes, TInt aLength, TRequestStatus& aStatus);

	virtual TInt Write(const TDesC8& aDes,TInt aLength);

	virtual void Write(const TDesC8& aDes, TInt aLength, TRequestStatus& aStatus);

	virtual TInt Size(TInt& aSize);

	virtual TInt SetSize(TInt aSize);

	virtual TInt EvaluateIntent(const ContentAccess::TIntent aIntent) const;

	virtual TInt ExecuteIntent(const ContentAccess::TIntent aIntent);

	virtual TBool IsProtected() const;

	virtual RFile& FileL();

	virtual TInt SetAgentProperty(ContentAccess::TAgentProperty, TInt aValue);

	virtual TInt Read(TInt aPosition, TDes8& aDes, TInt aLength, TRequestStatus& aStatus);

	virtual TInt Data(ContentAccess::CData*& aData);

private:

	CContentFile();

private:

	RFs* iSession; // not owned

	HBufC* iFilePath;

	ContentAccess::CData* iData;

	RFile   iLegacyFile;

	RFile64 iFile64; //For defect EASA-84ZC6J 

	TBool   iLegacyFileOpen;

	};

inline CF32File::CF32File() 

	{

	}

inline CContentFile::CContentFile() 

	{

	}

inline MGenericFile::~MGenericFile()

	{

	}

#endif //__FILE_ACCESS_H__