// vtc_controller.h

// 

// Copyright (c) 2008 - 2010 Accenture. All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the "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:

// Accenture - Initial contribution

//

#ifndef __VTC_CONTROLLER_H__

#define __VTC_CONTROLLER_H__

#include <e32keys.h>

#include <fshell/settings.h>

#include <fshell/consoleextensions.h>

#include <fshell/abstract_console_writer.h>

#include <fshell/common.mmh>

#include <fshell/descriptorutils.h>

class TCursorTracker;

class TEscapeMapping;

class MConsoleOutput

	{

public:

	virtual TInt Output(const TDesC8& aDes) = 0;

	};

NONSHARABLE_CLASS(CVtConsoleOutputController) : public CBase, public MAbstractConsoleWriter

	{

public:

	IMPORT_C static CVtConsoleOutputController* NewL(MConsoleOutput& aOutput, LtkUtils::CIniFile& aIniFile, const TSize& aScreenSize);

	IMPORT_C static CVtConsoleOutputController* New(MConsoleOutput& aOutput, LtkUtils::CIniFile& aIniFile, const TSize& aScreenSize);

	IMPORT_C ~CVtConsoleOutputController();

	IMPORT_C TInt ResetAttributes();

	IMPORT_C TInt SetAttributes(TUint aAttributes, ConsoleAttributes::TColor aForegroundColor = ConsoleAttributes::EUnchanged, ConsoleAttributes::TColor aBackgroundColor = ConsoleAttributes::EUnchanged);

	void SetMode(ConsoleMode::TMode aMode);

public: // From MAbstractConsoleWriter.

	virtual TInt GetCursorPos(TPoint& aPos) const;

	virtual TInt SetCursorPosAbs(const TPoint& aPos);

	virtual TInt SetCursorPosRel(const TPoint& aPos);

	virtual TInt SetCursorHeight(TInt aPercentage);

	virtual TInt SetTitle(const TDesC& aTitle);

	virtual TInt ClearScreen();

	virtual TInt ClearToEndOfLine();

	virtual TInt GetScreenSize(TSize& aSize) const;

	virtual TInt Write(const TDesC& aDes);

	virtual TInt Write(const TDesC8& aDes);

private:

	CVtConsoleOutputController(MConsoleOutput& aOutput, LtkUtils::CIniFile& aIniFile);

	TInt Construct(const TSize& aScreenSize);

private:

	MConsoleOutput& iOutput;

	LtkUtils::CIniFile& iIniFile;

	TCursorTracker* iCursorTracker;

	LtkUtils::RLtkBuf8 iOutputBuf;

	ConsoleMode::TMode iMode;

	};

class TKeyPress

	{

public:

	IMPORT_C TKeyPress();

	IMPORT_C TKeyPress(TKeyCode aCode, TUint aModifiers);

public:

	TKeyCode iCode;

	TUint iModifiers;

	};

class MConsoleInput

	{

public:

	virtual void Input(TDes8& aDes, TRequestStatus& aStatus) = 0;

	virtual void CancelInput(TRequestStatus& aStatus) = 0;

	};

NONSHARABLE_CLASS(CVtConsoleInputController) : public CActive

	{

public:

	IMPORT_C static CVtConsoleInputController* New(MConsoleInput& aConsoleInput, LtkUtils::CIniFile& aIniFile);

	IMPORT_C static CVtConsoleInputController* NewL(MConsoleInput& aConsoleInput, LtkUtils::CIniFile& aIniFile);

	IMPORT_C static CVtConsoleInputController* NewLC(MConsoleInput& aConsoleInput, LtkUtils::CIniFile& aIniFile);

	IMPORT_C void GetKeyPress(TKeyPress& aKeyPress, TRequestStatus& aStatus);

	IMPORT_C void CancelGetKeyPress();

	IMPORT_C void SetMode(ConsoleMode::TMode aMode);

public:

	virtual ~CVtConsoleInputController();

private:

	void ConstructL();

	CVtConsoleInputController(MConsoleInput& aConsoleInput, LtkUtils::CIniFile& aIniFile);

	void DoEscapeKeyL(TUint8 aChar, const TEscapeMapping* iMappings, TInt aMappingCount);

	void DoExtendedEscapeKey();

	static TInt EscapeTimeoutS(TAny* aSelf);

	TInt EscapeTimeout();

	void ReadKeyPress();

	void CompleteKeyPressRequest(TInt aError);

	void CompleteKeyPressRequest(TKeyCode aKeyCode);

	void CompleteKeyPressRequest(TKeyCode aKeyCode1, TKeyCode aKeyCode2);

	void Reset();

	void ReadInput();

private: // From CActive.

	virtual void RunL();

	virtual void DoCancel();

private:

	enum TState

		{

		ENormal,

		EWaitingForEscapeChar2,

		EWaitingForEscapeChar3,

		EWaitingForEscapeChar3Func,

		EWaitingForExtendedFunc, // Chars 4 and later

		};

private:

	MConsoleInput& iConsoleInput;

	LtkUtils::CIniFile& iIniFile;

	TState iState;

	CPeriodic* iEscapeTimer;

	ConsoleMode::TMode iMode;

	TBuf8<1024> iBuf;

	TInt iBufPos;

	TKeyPress* iClientKeyPress;

	TRequestStatus* iClientRequestStatus;

	TBool iKeyCodePending;

	TKeyCode iPendingKeyCode;

	TInt iInputError;

	TBuf8<4> iExtendedEscapeBuf;

	};

#endif //__VTC_CONTROLLER_H__