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/*
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* Copyright (c) 2006-2006 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: Stores element data and writes it to stream
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*
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*/
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#include <connect/sbdefs.h>
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#include "cbsbackupobserver.h"
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// ======== MEMBER FUNCTIONS ========
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// ---------------------------------------------------------------------------
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// CBSBackupObserver::NewL
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// ---------------------------------------------------------------------------
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//
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CBSBackupObserver* CBSBackupObserver::NewL()
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{
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CBSBackupObserver* self = NewLC();
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CleanupStack::Pop();
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return self;
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}
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// ---------------------------------------------------------------------------
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// CBSBackupObserver::NewLC
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// ---------------------------------------------------------------------------
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//
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CBSBackupObserver* CBSBackupObserver::NewLC()
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{
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CBSBackupObserver* self = new (ELeave) CBSBackupObserver();
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CleanupStack::PushL( self );
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self->ConstructL();
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return self;
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}
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// ---------------------------------------------------------------------------
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// CBSBackupObserver::ConstructL
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// ---------------------------------------------------------------------------
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//
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void CBSBackupObserver::ConstructL()
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{
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CActiveScheduler::Add( this );
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iProperty.Attach( KUidSystemCategory, conn::KUidBackupRestoreKey );
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iLatestState = BackupStateL();
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Subscribe();
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}
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// ---------------------------------------------------------------------------
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// CBSBackupObserver::CBSBackupObserver
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// ---------------------------------------------------------------------------
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//
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CBSBackupObserver::CBSBackupObserver() :
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CActive( EPriorityStandard )
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{
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}
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// ---------------------------------------------------------------------------
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// CBSBackupObserver::~CBSBackupObserver
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// ---------------------------------------------------------------------------
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//
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CBSBackupObserver::~CBSBackupObserver()
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{
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Cancel();
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iObservers.Close();
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}
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// ---------------------------------------------------------------------------
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// CBSBackupObserver::RunL
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// ---------------------------------------------------------------------------
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//
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void CBSBackupObserver::RunL()
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{
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MBSBackupObserver::TBackupState newState = BackupStateL();
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if( newState != iLatestState )
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{
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// state changed
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iLatestState = newState;
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NotifyObserversL( iLatestState );
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}
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Subscribe();
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}
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// ---------------------------------------------------------------------------
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// CBSBackupObserver::DoCancel
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// ---------------------------------------------------------------------------
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//
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void CBSBackupObserver::DoCancel()
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{
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iProperty.Cancel();
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}
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// ---------------------------------------------------------------------------
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// CBSBackupObserver::RunError
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// ---------------------------------------------------------------------------
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//
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TInt CBSBackupObserver::RunError( TInt /*aError*/ )
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{
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return KErrNone;
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}
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// ---------------------------------------------------------------------------
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// CBSBackupObserver::RegisterObserver
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// ---------------------------------------------------------------------------
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//
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TInt CBSBackupObserver::RegisterObserver( MBSBackupObserver* aObserver )
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{
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TInt err = iObservers.InsertInAddressOrder( aObserver );
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if( err == KErrAlreadyExists )
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{
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// ignore duplicate registration
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err = KErrNone;
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}
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// if backup is already active -> notify
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if( iLatestState == MBSBackupObserver::EBackupActive )
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{
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TRAP_IGNORE( aObserver->HandleBackupStateL( iLatestState ) );
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}
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return err;
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}
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// ---------------------------------------------------------------------------
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// CBSBackupObserver::UnregisterObserver
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// ---------------------------------------------------------------------------
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//
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void CBSBackupObserver::UnregisterObserver( MBSBackupObserver* aObserver )
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{
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TInt index = iObservers.FindInAddressOrder( aObserver );
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if( index != KErrNotFound )
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{
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iObservers.Remove( index );
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}
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}
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// ---------------------------------------------------------------------------
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// CBSBackupObserver::Subscribe
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// ---------------------------------------------------------------------------
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//
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void CBSBackupObserver::Subscribe()
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{
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if( IsActive() )
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{
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// already active
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return;
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}
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iStatus = KRequestPending;
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iProperty.Subscribe( iStatus );
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SetActive();
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}
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// ---------------------------------------------------------------------------
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// CBSBackupObserver::NotifyObservers
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// ---------------------------------------------------------------------------
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//
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void CBSBackupObserver::NotifyObserversL( MBSBackupObserver::TBackupState aState )
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{
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TInt count = iObservers.Count();
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for( TInt i = 0; i < count; i++ )
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{
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TRAP_IGNORE( iObservers[i]->HandleBackupStateL( aState ) );
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}
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}
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// ---------------------------------------------------------------------------
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// CBSBackupObserver::BackupState
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// ---------------------------------------------------------------------------
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//
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MBSBackupObserver::TBackupState CBSBackupObserver::BackupStateL()
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{
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TInt value = 0;
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User::LeaveIfError( iProperty.Get( value ) );
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if( value == 0 ||
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value == ( conn::EBURNormal | conn::ENoBackup ) )
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{
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// backup or restore is not active at the moment
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return MBSBackupObserver::EBackupNotActive;
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}
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return MBSBackupObserver::EBackupActive;
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}
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// End of file
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