/*

* Copyright (c) 2008 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:  An observer for change in System of Measurement

*

*/

// System Include

#include <centralrepository.h>

// User Include

#include "evtmgmtuisysofmeasurement.h"

// ========================= MEMBER FUNCTIONS ================================

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

// CEvtMgmtUiSysOfMeasurement::CEvtMgmtUiSysOfMeasurement

// Overloaded Constructor

//

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

//  

CEvtMgmtUiSysOfMeasurement::CEvtMgmtUiSysOfMeasurement(  

                                MEvtMgmtUiSOMObserver& aAdapterObsrv )

    :CActive(EPriorityStandard),

    iObserver(aAdapterObsrv)

    {

    }

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

// CEvtMgmtUiSysOfMeasurement::~CEvtMgmtUiSysOfMeasurement

// Destructor

//

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

//

CEvtMgmtUiSysOfMeasurement::~CEvtMgmtUiSysOfMeasurement()

    {

    Cancel();

    delete iRepository; 

    }

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

// CEvtMgmtUiSysOfMeasurement* CEvtMgmtUiSysOfMeasurement::NewL

// Creates new Systen of Measurement adapter

//

// @param  aAdapterObsrv                        Observer to the Settings adapter

// @return CEvtMgmtUiSysOfMeasurement&  Reference to the application view

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

//    

CEvtMgmtUiSysOfMeasurement* CEvtMgmtUiSysOfMeasurement::NewL( 

                            MEvtMgmtUiSOMObserver& aAdapterObsrv )

    {   

    CEvtMgmtUiSysOfMeasurement* self = 

                        CEvtMgmtUiSysOfMeasurement::NewLC( aAdapterObsrv );

    CleanupStack::Pop(self);

    return self;

    }

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

// CEvtMgmtUiSysOfMeasurement* CEvtMgmtUiSysOfMeasurement::NewLC

// Creates new Systen of Measurement adapter. Leaves the object on the clean-up

// stack

//

// @param  aAdapterObsrv                        Observer to the Settings adapter

// @return CEvtMgmtUiSysOfMeasurement&  Reference to the application view

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

// 

CEvtMgmtUiSysOfMeasurement* CEvtMgmtUiSysOfMeasurement::NewLC( 

                            MEvtMgmtUiSOMObserver& aAdapterObsrv )

    {   

    CEvtMgmtUiSysOfMeasurement* self = 

                        new(ELeave) CEvtMgmtUiSysOfMeasurement( aAdapterObsrv );

    CleanupStack::PushL(self);

    self->ConstructL();

    return self;

    }

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

// void CEvtMgmtUiSysOfMeasurement::ConstructL

// Second Phase Constructor

//

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

//

void CEvtMgmtUiSysOfMeasurement::ConstructL()

    {

    CActiveScheduler::Add( this );

    // Create the Central repository object for manipulating Avkon Central

    // repository for System of measurements settings

    iRepository = CRepository::NewL(TUid::Uid( KCRUidLocNotationPref ));

    StartNotification();    

    }

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

// TLocSystemofMeasurementValues CEvtMgmtUiSysOfMeasurement::GetCurrentSysofMeasL

// Returns the current value of the System of measurements settings

//

// @return TLocSystemofMeasurementValues  Current value of the System of 

//                                        measurements settings

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

//

TLocSystemofMeasurementValues CEvtMgmtUiSysOfMeasurement::GetCurrentSysofMeasL()

    {

    TInt settingsValue = 0;

    User::LeaveIfError( iRepository->Get( KLocSystemofMeasurements,

                                          settingsValue ));  

    return ( static_cast<TLocSystemofMeasurementValues>( settingsValue ));

    }

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

// void CEvtMgmtUiSysOfMeasurement::RunL

// Inherited from CActive

//

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

//

void CEvtMgmtUiSysOfMeasurement::RunL()

    {

    // Issue Notification

    iObserver.NotifySOMChangeL();

    // Schedule for listening to change events again

    StartNotification();

    }

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

// void CEvtMgmtUiSysOfMeasurement::DoCancel

// Inherited from CActive

//

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

//

void CEvtMgmtUiSysOfMeasurement::DoCancel()

    {

    // Cancel the outstanding CR notification request

    if( iRepository )

        {

        iRepository->NotifyCancel( KLocSystemofMeasurements );        

        }

    }

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

// void CEvtMgmtUiSysOfMeasurement::StartNotification

// Start notification from the Central repository server for any changes in the

// System of measurements key value

//

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

//

void CEvtMgmtUiSysOfMeasurement::StartNotification()

    {

    if( !IsActive())

        {

        iStatus = KRequestPending;

        // Request for notification

        iRepository->NotifyRequest( KLocSystemofMeasurements, iStatus);

        SetActive();          

        }  

    }