// mainfshell.cpp

// 

// Copyright (c) 2009 - 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

//

#include <fshell/ioutils.h>

#include "fed.h"

#include <e32cons.h>

#include <BADESCA.H>

#include <fshell/descriptorutils.h>

using namespace IoUtils;

class CCmdFed : public CCommandBase

	{

public:

	static CCommandBase* NewLC();

	~CCmdFed();

	CConsoleBase* Console() { return iConsole; }

	TInt TabWidth() const { return iTabWidth; }

	void ShowHelpL();

private:

	CCmdFed();

private: // From CCommandBase.

	virtual const TDesC& Name() const;

	virtual void DoRunL();

	virtual void ArgumentsL(RCommandArgumentList& aArguments);

	virtual void OptionsL(RCommandOptionList& aOptions);

	virtual void StdinChange(TUint aChange);

private:

	RArray<TFileName2> iFiles;

	CColorConsoleBase* iConsole;

	CFed* iFed;

	TInt iTabWidth;

	};

CCmdFed* gCmd = NULL; // Only used for the assertion handler and tab fns

CCommandBase* CCmdFed::NewLC()

	{

	CCmdFed* self = new(ELeave) CCmdFed();

	CleanupStack::PushL(self);

	self->BaseConstructL();

	return self;

	}

CCmdFed::~CCmdFed()

	{

	iFiles.Close();

	delete iFed;

	delete iConsole;

	}

CCmdFed::CCmdFed()

	: CCommandBase(EManualComplete | ENotifyStdinChanges), iTabWidth(4)

	{

	}

const TDesC& CCmdFed::Name() const

	{

	_LIT(KName, "fed");	

	return KName;

	}

void CCmdFed::ArgumentsL(RCommandArgumentList& aArguments)

	{

	aArguments.AppendFileNameL(iFiles, _L("file"));

	}

void CCmdFed::OptionsL(RCommandOptionList& aOptions)

	{

	aOptions.AppendIntL(iTabWidth, _L("tab-width"));

	}

EXE_BOILER_PLATE(CCmdFed)

void CCmdFed::DoRunL()

	{

	iConsole = GetColorConsoleBaseL();

	gCmd = this;

	// Set the console title - nice for when using win32cons

	// Not so nice - fshell doesn't reset it when fed exits... -TomS

	/*

	_LIT(KFed, "fed ");

	RBuf cmdLine;

	cmdLine.CreateL(User::CommandLineLength() + KFed().Length());

	User::CommandLine(cmdLine);

	cmdLine.Insert(0, KFed);

	iConsole->SetTitle(cmdLine);

	cmdLine.Close();

	*/

	// Capture CTRL-C so we can (a) use it and (b) prevent users from accidentally nuking their work

	User::LeaveIfError(Stdin().CaptureKey(CTRL('c'), 0, 0));

	iFed = CFed::NewL(*iConsole, FsL());

	CDesC16ArrayFlat* argsBuf = new(ELeave) CDesC16ArrayFlat(Max(1, iFiles.Count()));

	CleanupStack::PushL(argsBuf);

	for (TInt i = 0; i < iFiles.Count(); i++)

		{

		argsBuf->AppendL(iFiles[i]);

		}

	CleanupStack::Pop(argsBuf);

	iFed->StartL(argsBuf);

	}

void CCmdFed::StdinChange(TUint aChange)

	{

	if (aChange & RIoReadHandle::EGainedForeground)

		{

		iFed->RedrawEverythingL();

		}

	}

void AssertionFail(const char* aAssertion, const char* aFile, TInt aLine)

	{

	__DEBUGGER();

	TBuf8<256> buf;

	TOverflowTruncate8 o;

	buf.AppendFormat(_L8("Assertion failed: \"%s\" in %s:%i\n"), &o, aAssertion, aFile, aLine);

	if (buf.Length()*2>buf.MaxLength()) buf.SetLength(buf.MaxLength()/2);

	gCmd->Console()->Write(buf.Expand());

	User::Panic(_L("Fed"), aLine);

	}

TInt KConsoleWidthCorrection = 0;

TInt KConsoleHeightCorrection = 0;

TInt TabWidth()

	{

	return gCmd->TabWidth();

	}

void ShowHelpL()

	{

	gCmd->ShowHelpL();

	}

void CCmdFed::ShowHelpL()

	{

	LtkUtils::RLtkBuf helpText;

	CleanupClosePushL(helpText);

	helpText.AppendL(_L("\

Fed Help\r\n\

========\

"));

	_LIT(KStart, "Console text editor.");

	CTextBuffer* helpBuf = const_cast<CTextBuffer*>(GetHelpTextL()); // nasty cast... GetHelpTextL shouldn't return a const obj...

	CleanupStack::PushL(helpBuf);

	TInt found = helpBuf->Descriptor().Find(KStart);

	helpText.AppendL(helpBuf->Descriptor().Mid(found + KStart().Length()));

	iFed->ShowHelpL(helpText.ToHBuf());

	CleanupStack::PopAndDestroy(2, &helpText); // helpBuf, helpText

	}