/**

* Copyright (c) 2003-2009 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:

* Header for classes for manipulting of received data.

* This should all be 8-bit so we don't need to deal with any conversions at this level.

* 

*

*/

/**

 @file Schat.h

*/

#if !defined(__SCHAT_H__)

#define __SCHAT_H__

#include <e32base.h>

// Forward declarations 

class CCommChatString;

class MCommChatNotify

/**

Interface between CScriptIO and CCommChatter object.

@internalComponent

*/

	{

public:

	virtual void ChatStringMatch(TInt aIndex)=0;

	virtual void ChatTimeout()=0;

	};

class CCommChatter : public CTimer

/**

Deals with data received from the comm port.  One of these for each CScriptIO object.

@internalComponent

*/

	{

public:

	static CCommChatter* NewL(MCommChatNotify* aNotify,TInt aPriority,TInt aBufferSize);

	CCommChatter(MCommChatNotify* aNotify,TInt aPriority);

	virtual ~CCommChatter();	

	void ConstructL(TInt aBufSize);

	void ClearHistory();

	void AddChar(TText8 aChar);

	TBool Match(const CCommChatString* aString) const;

	TBool MatchF(const CCommChatString* aString) const;

	void AddString(CCommChatString* aString);

	void RemoveString(CCommChatString* aString);

	void DeleteAllAndStop();

	void StartTimer(const TTimeIntervalMicroSeconds32& aTimeout);

	void StopTimer();

protected:

	virtual void RunL();

protected:

	MCommChatNotify* iNotify;

	TDblQue<CCommChatString> iList;

	TText8* iBuffer;

	TText8* iBufferEnd;

	TText8* iLastChar;	///< Last character added

	TInt iCount;		///< No of chars added to buffer

	};

class CCommChatString : public CBase

/**

@internalComponent

*/

	{

public:

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

	CCommChatString();

	void ConstructL(const TDesC8& aDes,TBool aIsFolded);

	virtual ~CCommChatString();

	inline TText8 LastChar() const { return *iLastChar; }

	inline TInt Length() const { return (iLastChar-iString)+1; }

	inline const TText8* Ptr() const { return iString; }

	inline const TText8* EndPtr() const { return iLastChar; }

	inline TBool IsFolded() const { return iIsFolded; }

	inline TPtrC8 Des() { return TPtrC8(Ptr(), Length()); }

private:

	friend class CCommChatter;

	TDblQueLink iLink;

protected:

	TBool iIsFolded;

	TText8* iString;

	TText8* iLastChar;

	};

#endif