/*

* Copyright (c) 2010 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: Implementation of CSsmUiLanguageObserver class.

*

*/

#include "ssmuilanguageobserversup.h"

#include "ssmlocalepskeys.h"

#include "ssmmapperutilityinternalpskeys.h"

#include "ssmcommonlocale.h"

#include "trace.h"

#include <centralrepository.h>

#include <CommonEngineDomainCRKeys.h>

// ---------------------------------------------------------------------------

// CSsmUiLanguageObserver::NewL

// ---------------------------------------------------------------------------

//

EXPORT_C MSsmUtility* CSsmUiLanguageObserver::NewL()

    {

    FUNC_LOG;

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

    return self;

    }

// ---------------------------------------------------------------------------

// CSsmUiLanguageObserver::InitializeL

// ---------------------------------------------------------------------------

//

void CSsmUiLanguageObserver::InitializeL()

	{

	}

// ---------------------------------------------------------------------------

// CSsmUiLanguageObserver::StartL

// ---------------------------------------------------------------------------

//

void CSsmUiLanguageObserver::StartL()

	{

	FUNC_LOG;

	TInt errorCode = iUILanguageProperty.Attach( KPSStarterUid, KSSMUILanguagePSKey );

	ERROR_2( errorCode, "Failed to attach to property 0x%08x::0x%08x", KPSStarterUid.iUid, KSSMUILanguagePSKey );

	Activate();

	}

// ---------------------------------------------------------------------------

// CSsmUiLanguageObserver::Release

// ---------------------------------------------------------------------------

//

void CSsmUiLanguageObserver::Release()

	{

	FUNC_LOG;

	delete this;

	}

// ---------------------------------------------------------------------------

// CSsmUiLanguageObserver::~CSsmUiLanguageObserver

// ---------------------------------------------------------------------------

//

CSsmUiLanguageObserver::~CSsmUiLanguageObserver()

    {

    FUNC_LOG;

    Cancel();

    iUILanguageProperty.Close();

    }

// ---------------------------------------------------------------------------

// CSsmUiLanguageObserver::DoCancel

// ---------------------------------------------------------------------------

//

void CSsmUiLanguageObserver::DoCancel()

    {

    FUNC_LOG;

    iUILanguageProperty.Cancel();

    }

// ---------------------------------------------------------------------------

// CSsmUiLanguageObserver::RunL

// ---------------------------------------------------------------------------

//

void CSsmUiLanguageObserver::RunL()

    {

    FUNC_LOG;

    const TInt errorCode = iStatus.Int();

    if (KErrNone == errorCode )

        {

        Activate();

        LoadUILanguage();

        }

    else

    	{

    	INFO_1("CSsmUiLanguageObserver::RunL()completed with: %d - not reactivating", iStatus.Int());

    	}

    }

// ---------------------------------------------------------------------------

// CSsmUiLanguageObserver::LoadUILanguage

// ---------------------------------------------------------------------------

//

void CSsmUiLanguageObserver::LoadUILanguage()

    {

    FUNC_LOG;

    TInt uiLanguage(0);

    TInt errorCode = iUILanguageProperty.Get( uiLanguage );

    if( KErrNone != errorCode )

         {

         INFO_1( "Failed to get KSSMUILanguagePSKey value with error  %d", errorCode );

         return;

         }

    // Dot plus five digit locale

    TBuf<KMaxDllExtensionLength> extension; 

    extension.Format( KDllExtensionFormat, uiLanguage );

    // Padd ".1" to ".001" for compatibility.   

    for( ; extension.Length() < KMinDllExtensionLength ;) 

        {

        extension.Insert( KDllExtensionPaddingPosition,

                          KDllExtensionPadding );

        }

    TBuf<KMaxDllNameLength> uiLanguageDllName( KLanguageDllNameBase );

    uiLanguageDllName.Append( extension );

    INFO_1( "Loading UI Language DLL named '%S'", &uiLanguageDllName );

    TExtendedLocale extLocale;

    extLocale.LoadSystemSettings();

    errorCode = extLocale.LoadLocaleAspect( uiLanguageDllName );

    ERROR( errorCode, "Failed to load locale" );

    if ( errorCode == KErrNone )

        {

        errorCode = extLocale.SaveSystemSettings();

        ERROR( errorCode, "Failed to set locale" );

        TLocale().Set();

        StoreUILanguageToCentRep( uiLanguage );

        }

    }

// ---------------------------------------------------------------------------

// CSsmUiLanguageObserver::StoreUILanguageToCentRep

// ---------------------------------------------------------------------------

//

void CSsmUiLanguageObserver::StoreUILanguageToCentRep( const TInt aUILanguage )

    {

    FUNC_LOG;

    CRepository* cenrep = NULL;

    TRAPD( errorCode, cenrep = CRepository::NewL( KCRUidCommonEngineKeys ) );

    ERROR_1( errorCode, "Failed to initialize cen rep %d", errorCode );

    if ( KErrNone == errorCode )

        {

        errorCode = cenrep->Set( KGSDisplayTxtLang, aUILanguage);

        ERROR_1( errorCode, "Failed to store UI Language code to CentRep, %d", 

                                                                  errorCode );

        delete cenrep;

        }

    }

// ---------------------------------------------------------------------------

// CSsmUiLanguageObserver::CSsmUiLanguageObserver

// ---------------------------------------------------------------------------

//

CSsmUiLanguageObserver::CSsmUiLanguageObserver() : CActive( EPriorityStandard )

    {

    FUNC_LOG;

    CActiveScheduler::Add( this );

    }

// ---------------------------------------------------------------------------

// CSsmUiLanguageObserver::Activate

// ---------------------------------------------------------------------------

//

void CSsmUiLanguageObserver::Activate()

    {

	FUNC_LOG;

    ASSERT( !IsActive() );

    iUILanguageProperty.Subscribe( iStatus );

    SetActive();

    }