// focus.cpp

// 

// 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

//

#include <w32std.h>

#include <apgwgnam.h>

#include <fshell/ioutils.h>

const TInt KPriorityNeverAtFront = -999;

using namespace IoUtils;

class CCmdFocus : public CCommandBase

	{

public:

	static CCommandBase* NewLC();

	~CCmdFocus();

private:

	CCmdFocus();

	void PrintDetailsL();

	void FocusWindowGroupL(TInt aWindowGroupId);

private: // From CCommandBase.

	virtual const TDesC& Name() const;

	virtual void DoRunL();

	virtual void OptionsL(RCommandOptionList& aOptions);

private:

	RWsSession iWsSession;

	RWindowGroup iWindowGroup;

	TInt iWindowGroupId;

	HBufC* iWindowGroupPattern;

	TBool iFollow;

	TBool iVerbose;

	};

CCommandBase* CCmdFocus::NewLC()

	{

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

	CleanupStack::PushL(self);

	self->BaseConstructL();

	return self;

	}

CCmdFocus::~CCmdFocus()

	{

	iWindowGroup.Close();

	iWsSession.Close();

	delete iWindowGroupPattern;

	}

CCmdFocus::CCmdFocus()

	{

	}

const TDesC& CCmdFocus::Name() const

	{

	_LIT(KName, "focus");	

	return KName;

	}

void CCmdFocus::DoRunL()

	{

	LeaveIfErr(iWsSession.Connect(), _L("Couldn't connect to windowserver"));

	if (iOptions.IsPresent(&iWindowGroupId))

		{

		FocusWindowGroupL(iWindowGroupId);

		}

	else if (iWindowGroupPattern)

		{

		TInt id = 0;

		id = iWsSession.FindWindowGroupIdentifier(id, *iWindowGroupPattern);

		if (id >= 0)

			{

			FocusWindowGroupL(id);

			}

		}

	else

		{

		PrintDetailsL();

		if (iFollow)

			{

			iWindowGroup = RWindowGroup(iWsSession);

			User::LeaveIfError(iWindowGroup.Construct((TUint32)this,EFalse));

			iWindowGroup.SetOrdinalPosition(0, KPriorityNeverAtFront);

			iWindowGroup.EnableFocusChangeEvents();

			TRequestStatus status;

			FOREVER

				{

				iWsSession.EventReady(&status);

				User::WaitForRequest(status);

				User::LeaveIfError(status.Int());

				TWsEvent event;

				iWsSession.GetEvent(event);

				if (event.Type() == EEventFocusGroupChanged) 

					{

					PrintDetailsL();

					}

				}

			}

		}

	}

void CCmdFocus::PrintDetailsL()

	{

	TInt focusedWgId = iWsSession.GetFocusWindowGroup();

	CApaWindowGroupName* wgn = CApaWindowGroupName::NewLC(iWsSession, focusedWgId);

	_LIT(KUnknown, "Un-named");

	TPtrC caption(wgn->Caption());

	if (caption.Length() == 0)

		{

		caption.Set(KUnknown);

		}

	Printf(_L("Focused window group: %S\r\n"), &caption);

	CleanupStack::PopAndDestroy(wgn);

	if (iVerbose)

		{

		TThreadId focusedThreadId;

		User::LeaveIfError(iWsSession.GetWindowGroupClientThreadId(focusedWgId, focusedThreadId));

		RThread thread;

		User::LeaveIfError(thread.Open(focusedThreadId));

		TFullName name(thread.FullName());

		thread.Close();

		Printf(_L("  Window group id:    %u\r\n"), focusedWgId);

		Printf(_L("  Owning thread:      %S\r\n"), &name);

		Printf(_L("  Owning thread id:   %u\r\n"), (TUint32)focusedThreadId);

		Printf(_L("  Tick count:         %u\r\n"), User::NTickCount());

		}

	}

void CCmdFocus::FocusWindowGroupL(TInt aWindowGroupId)

	{

	LeaveIfErr(iWsSession.SetWindowGroupOrdinalPosition(aWindowGroupId, 0), _L("Unable to set window group %d to ordinal position zero"), aWindowGroupId);

	}

void CCmdFocus::OptionsL(RCommandOptionList& aOptions)

	{

	_LIT(KOptWindowGroupId, "id");

	aOptions.AppendIntL(iWindowGroupId, KOptWindowGroupId);

	_LIT(KOptWindowGroupPattern, "match");

	aOptions.AppendStringL(iWindowGroupPattern, KOptWindowGroupPattern);

	_LIT(KOptFollow, "follow");

	aOptions.AppendBoolL(iFollow, KOptFollow);

	_LIT(KOptVerbose, "verbose");

	aOptions.AppendBoolL(iVerbose, KOptVerbose);

	}

EXE_BOILER_PLATE(CCmdFocus)