// Copyright (c) 1997-2009 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:

// Send/Expect Algorithms

// 

//

/**

 @file

 @internalAll 

*/

#ifndef __SCHAT_H__

#define __SCHAT_H__

#include <e32base.h>

/**

@internalComponent

*/

const TInt KChatBufferSize = 400; //increased from 200 to stop WrapCnt overrunning due to concatenated messages!!

class CCommChatString;

class MCommChatNotify

/**

@internalComponent

*/

	{

public:

	virtual void ChatStringMatchL(CCommChatString* aCs)=0;

	virtual void ChatTimeout()=0;

	};

class CCommChatter : public CTimer

/**

@internalComponent

*/

	{

public:

	CCommChatter(MCommChatNotify* aNotify, TInt aPriority);

	virtual ~CCommChatter();

	void CreateL(TInt aBufferSize);

	void AddCharL(TText8 aChar);

	CCommChatString* AddStringL(const TDesC8& aString, TBool aPartLine);

	void RemoveString(CCommChatString* aString);

	TPtrC8 Buffer() const;

	TPtrC8 CurrentLine() const;

	void ClearBuffer();

	void ClearCurrentLine();

	void StartTimer(const TTimeIntervalMicroSeconds32 aTimeout);

	void StopTimer();

	void DeleteAllAndStop();

protected:

	virtual void RunL();

protected:

	MCommChatNotify* iNotify;

	TDblQue<CCommChatString> iList;

	TText8* iBuffer;

	TText8* iBufferEnd;

	TText8* iLastChar;			// Last character added

	TText8* iLineStart;			// Start of \r\n delimited line

	TBool iInDelimiter;

	TInt iPartLineMatchers;		// count of CCommChatStrings which need partial line matches

	};

class CCommChatString : public CBase

/**

@internalComponent

*/

	{

public:

	static CCommChatString* NewL(const TDesC8& aDes, TBool aIsPartialLine);

	CCommChatString();

	virtual ~CCommChatString();

	void CreateL(const TDesC8& aDes, TBool aIsPartialLine);

	inline const TPtrC8& Des() const {return iMatch;};

protected:

	TBool iIsPartialLine;

	TPtrC8 iMatch;

private:

	friend class CCommChatter;

	TDblQueLink iLink;

	};

#endif