// 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:

 // Simple implementation of stdin/stdout/stderr class which uses a console, created on demand.

 // 

 //

 #include "FDESC.H"

 #include <e32cons.h>	// for CConsoleBase

 #include <sys/ioctl.h>

 void CTtyDesc::CheckConsoleCreated()

 	{

 	if (iConsole==NULL)

 		{

 		TRAPD(r,iConsole=Console::NewL(_L("STDOUT"),TSize(KConsFullScreen,KConsFullScreen)))

 		__ASSERT_ALWAYS(r==KErrNone,User::Panic(_L("ESTLIB Console"),0));

 		}

 	}

 CTtyDesc::~CTtyDesc()

 	{

 	CConsoleBase *it = iConsole;

 	iConsole = 0;

 	delete it;

 	}

 TInt CTtyDesc::FinalClose()

 	{

 	CConsoleBase *it = iConsole;

 	iConsole = 0;

 	if (it)

 		{

 		// it->SetTitle(_L("Console closed - press any key"));

 		it->Printf(_L("Console closed - press any key"));

 		it->Getch();

 		delete it;

 		}

 	return KErrNone;

 	}

 void CTtyDesc::Read(TDes8& /*aDesc*/, TRequestStatus& aStatus)

 	{

 	CheckConsoleCreated();

 	// See implemention of Getch() in E32\UBAS\UB_CONS.CPP

 	iConsole->Read(aStatus);

 	}

 void CTtyDesc::ReadCancel()

 	{

 	if (iConsole)

 		iConsole->ReadCancel();

 	}

 TInt CTtyDesc::ReadCompletion(TDes8& aDesc, TInt aStatus)

 	{

 	MapCodeAndEcho(aDesc, iConsole->KeyCode());

 	return aStatus;

 	}

 void CTtyDesc::Write(TDes8 &aDesc, TRequestStatus& aStatus)

 	{

 	Write(aDesc);

 	Complete(aStatus, KErrNone);

 	}

 #if !defined(_UNICODE)

 void CTtyDesc::Write(TDes8 &aDesc)

 	{

 	CheckConsoleCreated();

 	iConsole->Write(aDesc);

 	}

 #else

 void CTtyDesc::Write(TDes8 &aDesc)

 	{

 	CheckConsoleCreated();

 	TInt remaining = aDesc.Length();

 	const TText8* cp = aDesc.Ptr();

 	while (remaining)

 	    {

 	    TBuf16<256> buffer;

 	    TInt len = Min(remaining, 256);

 	    buffer.Copy(TPtrC8(cp, len));

 	    iConsole->Write(buffer);

 	    cp += len;

 	    remaining -= len;

 	    }

 	}

 #endif

 void CTtyDesc::MapCodeAndEcho(TDes8& aDesc, TKeyCode aCode)

 	{

 	TText8 ch;

 	aDesc.Zero();

 	switch (aCode)

 	{

 	case EKeyPrintScreen:

 		return;		// unknowable keycodes are ignored

 	case EKeyEnter:

 		ch='\n'; break;

 	case EKeyBackspace:

 		ch=0x08; break;

 	default:

 		ch=(TText8)(aCode&0xff);	// who knows - it's not documented

 		break;

 	}

 	aDesc.Append(ch);

 	// Could suppress echoing at this point

 	Write(aDesc);

 	return;

 	}

 void CTtyDesc::Ioctl(int /*aCmd*/, void* /*aParam*/, TRequestStatus& aStatus)

 	{

 	// bodge for now - this will become more complicated if we develop a better

 	// terminal device implementation

 	Complete(aStatus,KErrNone);

 	}

 TInt CTtyDesc::IoctlCompletion(int aCmd, void* aParam, TInt aStatus)

 	{

 	TInt ret=aStatus;

 	if (ret!=KErrNone)

 		return ret;

 	int *param=REINTERPRET_CAST(int*,aParam);

 	switch (aCmd)

 		{

 	case E32IONREAD:

 		*param=1;	// claim that there is always data available

 		break;

 	case E32IOSELECT:

 		*param=(*param)&(E32SELECT_READ|E32SELECT_WRITE);

 		break;

 	default:

 		ret=KErrNotSupported;

 		break;

 		}

 	return ret;

 	}