// Copyright (c) 2002-2009 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:

 //

 #include <s32file.h>

 #include <bautils.h>

 #include "DowngradePath.h"

 #include "FileUtils.h"

 Languages RDowngradePath::iCurrentLanguage;

 //overwrite the old array with values in the new array

 void CopyLanguageArrayL(Languages& old_array,const Languages& new_array)

 	{

 	old_array.Reset();

 	CleanupClosePushL(old_array);

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

 		{

 		old_array.AppendL(new_array[i]);

 		}

 	CleanupStack::Pop();	

 	}

 void RDowngradePath::Reset()

 	{

 	iCurrentLanguage.Reset();

 	}

 /**

 Get whether the current downgrade path has changed

 @return ETrue if so, EFalse if not.

 */

 TBool RDowngradePath::HasChangedL(RFs& aFs)

 	{

 	TBool hasChanged = EFalse;

 	TInt currentLanguageCount=iCurrentLanguage.Count();

 	//check current language settings

 	if (currentLanguageCount==0)

 		{

 		CleanupClosePushL(iCurrentLanguage);

 		//this is during the server boot time,store this settings

 		BaflUtils::GetDowngradePathL(aFs,User::Language(),iCurrentLanguage);

 		CleanupStack::Pop();

 		return ETrue; 

 		}

 	else

 		{

 		//we need to check the new settings against current stored settings

 		//this is likely the case during language change notification

 		Languages newLanguage;

 		CleanupClosePushL(newLanguage);

 		// get current system downgrade path			

 		BaflUtils::GetDowngradePathL(aFs, User::Language(), newLanguage);

 		// path lengths match

 		if (currentLanguageCount == newLanguage.Count())

 			{

 			TInt langs = newLanguage.Count();

 			// compare each entry in path

 			for (TInt i = 0; i < langs; ++i)

 				{

 				if (iCurrentLanguage[i] != newLanguage[i])

 					{

 					hasChanged = ETrue;

 					CopyLanguageArrayL(iCurrentLanguage,newLanguage);

 					break;

 					}

 				}

 			}

 		// path lengths don't match

 		else

 			{

 			CopyLanguageArrayL(iCurrentLanguage,newLanguage);			

 			hasChanged = ETrue;

 			}

 		CleanupStack::PopAndDestroy(&newLanguage);	// cleanup: newLanguage		

 		}

 	return hasChanged;

 	}