/*

* Copyright (c) 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 CDLDLLWATCHER_H

#define CDLDLLWATCHER_H

#include <e32base.h>

#include <f32file.h>

#include "CdlServEng.h"

/**

* Mixin interface for objects that want to observe changes in the set of available CDL DLLs.

*/

class MCdlDllsObserver

	{

public:

	virtual void McdoPrepareForChangesL() = 0;

	virtual void McdoFileAddedL(const TDesC& aFile) = 0;

	virtual void McdoFileRemovedL(const TDesC& aFile) = 0;

	virtual void McdoChangesCompleteL() = 0;

	};

class CCdlDllsWatcherBase : public CActive

	{

public:

	static void NewL(CCdlDllsWatcherBase*& iWatcher, RFs& aFs, MCdlDllsObserver* aObserver);

	CCdlDllsWatcherBase(RFs& aFs);

	CCdlRefCollection* FileContentsLC(const TDesC& aFileName);

	virtual TInt IsPluginInRom(const TDesC& aFileName, TBool& aIsInRom) const = 0;

	virtual TInt PluginDrive(const TDesC& aFileName, TDriveUnit& aDrive) const = 0;

protected:

	RFs& iFs;

	};

#endif