// Copyright (c) 2007-2009 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:

// Definitions for this file system extension

// 

//

/**

 @file

*/

#ifndef WIN_DRIVE_EXTENSION_H

#define WIN_DRIVE_EXTENSION_H

#include "win_media.h"

//-----------------------------------------------------------------------------

/**

    This class represents the File System extension (.fxt module) that intercepts media driver operations and

    deals with them on windows filesystem level.

*/

class CWinDrvProxyDrive : public CBaseExtProxyDrive

{

public:

    static CWinDrvProxyDrive* NewL(CProxyDrive* aProxyDrive, CMountCB* aMount);

protected:

    CWinDrvProxyDrive(CProxyDrive* aProxyDrive, CMountCB* aMount);

    virtual ~CWinDrvProxyDrive();

	//-- overrides from the base class

    virtual TInt Initialise();

	virtual TInt Dismounted();

	virtual TInt Read(TInt64 aPos,TInt aLength,const TAny* aTrg,TInt aThreadHandle,TInt aOffset,TInt aFlags);

	virtual TInt Read(TInt64 aPos,TInt aLength,const TAny* aTrg,TInt aThreadHandle,TInt aOffset);

	virtual TInt Read(TInt64 aPos,TInt aLength,TDes8& aTrg);

	virtual TInt Write(TInt64 aPos,TInt aLength,const TAny* aSrc,TInt aThreadHandle,TInt aOffset,TInt aFlags);

	virtual TInt Write(TInt64 aPos,TInt aLength,const TAny* aSrc,TInt aThreadHandle,TInt aOffset);

	virtual TInt Write(TInt64 aPos,const TDesC8& aSrc);

    virtual TInt Caps(TDes8& anInfo);

    virtual TInt Format(TFormatInfo& anInfo);

    virtual TInt Format(TInt64 aPos,TInt aLength);

    /* -------- virtual base class API --------------

    virtual TInt Enlarge(TInt aLength);

	virtual TInt ReduceSize(TInt aPos, TInt aLength);

    # virtual TInt Read(TInt64 aPos,TInt aLength,const TAny* aTrg,TInt aThreadHandle,TInt aOffset,TInt aFlags);

	# virtual TInt Read(TInt64 aPos,TInt aLength,const TAny* aTrg,TInt aThreadHandle,TInt anOffset);

	# virtual TInt Read(TInt64 aPos,TInt aLength,TDes8& aTrg);

	# virtual TInt Write(TInt64 aPos,TInt aLength,const TAny* aSrc,TInt aThreadHandle,TInt aOffset,TInt aFlags);

	# virtual TInt Write(TInt64 aPos,TInt aLength,const TAny* aSrc,TInt aThreadHandle,TInt anOffset);

	# virtual TInt Write(TInt64 aPos,const TDesC8& aSrc);

    # virtual TInt Caps(TDes8& anInfo);

	#virtual TInt Format(TFormatInfo& anInfo);

	#virtual TInt Format(TInt64 aPos,TInt aLength);

	virtual TInt SetMountInfo(const TDesC8* aMountInfo,TInt aMountInfoThreadHandle=KCurrentThreadHandle);

	virtual TInt ForceRemount(TUint aFlags=0);

	virtual TInt Unlock(TMediaPassword &aPassword, TBool aStorePassword);

	virtual TInt Lock(TMediaPassword &aOldPassword, TMediaPassword &aNewPassword, TBool aStorePassword);

	virtual TInt Clear(TMediaPassword &aPassword);

	virtual TInt ControlIO(const RMessagePtr2& aMessage,TInt aCommand,TAny* aParam1,TAny* aParam2);

	virtual TInt ErasePassword();

	virtual TInt GetLastErrorInfo(TDes8& aErrorInfo);

    virtual TInt DeleteNotify(TInt64 aPos, TInt aLength);

    */

protected:

	virtual TInt GetInterface(TInt aInterfaceId,TAny*& aInterface,TAny* aInput);	

protected:

    CMountCB*    iMount;        ///< pointer to the owning mount

    CProxyDrive* iProxyDrive;   ///< pointer to the chain of the proxies to the native media driver

    CMediaBase*  ipMedia;       ///< pointer to the base "media" object that implements this extension't IO operations

    RBuf8        iScratchBuf;   ///< scratch buffer for non-local read/write operations

};

//-----------------------------------------------------------------------------

/**

    This Proxy drive factory class

*/

class CWinDrvProxyDriveFactory : public CProxyDriveFactory

{

 public:

    CWinDrvProxyDriveFactory();

    virtual TInt Install();         

    virtual CProxyDrive* NewProxyDriveL(CProxyDrive* aProxy,CMountCB* aMount);

};

#endif //WIN_DRIVE_EXTENSION_H