// 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:

//

#ifndef __SSMCOMMANDBASE_H__

#define __SSMCOMMANDBASE_H__

#include <e32base.h>

#include <ssm/ssmcommand.h>

#define __COMPARE_VERSION(version, expectedVersion) ((version <= expectedVersion) && (version > 0))

class CSsmCommandUtilProvider;

/** Abstract base class for all commands.

@internalComponent

@released

*/

NONSHARABLE_CLASS(CSsmCommandBase) : public CActive, public MSsmCommand

	{

public:

	~CSsmCommandBase();

	void SetUtilProvider(CSsmCommandUtilProvider& aUtilProvider);

#ifdef SYMBIAN_SSM_FLEXIBLE_MERGE

	TUint16 Priority() const;

	void SetCommandResourceFileNameL(const TDesC& aFileName);

	const TDesC& GetCommandResourceFileName() const;

	TInt GetCommandResourceFileNameLength() const;

#endif

	// from MSsmCommand

	TBool IsDeferred() const;

	TCmdErrorSeverity Severity() const;

	TInt CompletionStatus() const;

	void RegisterCompletionObserver(TRequestStatus& aStatus);

	void RegisterCompletionObserverCancel();

	TSsmExecutionBehaviour ExecutionBehaviour() const;

	TBool EvaluateCondition(MSsmConditionalCallback* aCallback, CResourceFile* aResourceFile);

	void SetConditionalInformation(TInt aConditionalInformation);

	TInt ConditionalInformation() const;

protected:

	CSsmCommandBase();

	CSsmCommandBase(TCmdErrorSeverity aSeverity);

#ifdef SYMBIAN_SSM_FLEXIBLE_MERGE

	CSsmCommandBase(TCmdErrorSeverity aSeverity, const TUint16 aPriority);

#endif

	void CompleteRequest(TRequestStatus& aStatus, TInt aReason);

	virtual	void CompleteExecuteRequest(TInt aReason);

protected:

	TRequestStatus* iExecuteRequest;

	TCmdErrorSeverity iSeverity;

	CSsmCommandUtilProvider* iUtilProvider;	// Not owning

	TInt iConditionalResourceId;

#ifdef SYMBIAN_SSM_FLEXIBLE_MERGE

	// the priority of the command, indicating the order of execution in the list

	TUint16 iPriority;

	RBuf iCmdResourceFileName;

#endif

	};

#endif // __SSMCOMMANDBASE_H__