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/*
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* Copyright (c) 2002-2005 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 "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: Provides methods for CNSmlDMDbNotifier class.
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*
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*/
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#include "nsmldmdbnotifier.h"
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#include "nSmldmsyncdebug.h"
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#include "nsmldmdef.h"
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// -----------------------------------------------------------------------------
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// CNSmlDMDbNotifier::CNSmlDMDbNotifier
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// -----------------------------------------------------------------------------
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//
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CNSmlDMDbNotifier::CNSmlDMDbNotifier( RSyncMLSession* aSyncSession,
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MNSmlDMDbEventHandler* aHandler)
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: iSyncSession(aSyncSession),
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iHandler( aHandler )
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{
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}
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// -----------------------------------------------------------------------------
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// CNSmlDMDbNotifier::NewL
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// -----------------------------------------------------------------------------
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//
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CNSmlDMDbNotifier* CNSmlDMDbNotifier::NewL( RSyncMLSession* aSyncSession,
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MNSmlDMDbEventHandler* aHandler)
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{
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CNSmlDMDbNotifier* self = new (ELeave) CNSmlDMDbNotifier( aSyncSession,
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aHandler );
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CleanupStack::PushL(self);
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self->ConstructL();
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CleanupStack::Pop(self);
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return self;
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}
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// -----------------------------------------------------------------------------
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// CNSmlDMDbNotifier::ConstructL
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// -----------------------------------------------------------------------------
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//
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void CNSmlDMDbNotifier::ConstructL()
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{
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iActiveCaller = CNSmlDMActiveCaller::NewL(this);
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}
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// -----------------------------------------------------------------------------
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// Destructor
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// -----------------------------------------------------------------------------
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//
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CNSmlDMDbNotifier::~CNSmlDMDbNotifier()
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{
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delete iActiveCaller;
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iList.Close();
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}
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// -----------------------------------------------------------------------------
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// CNSmlDMDbNotifier::RequestL
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// -----------------------------------------------------------------------------
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//
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void CNSmlDMDbNotifier::RequestL()
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{
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Session().RequestEventL( *this ); // request MSyncMLEventObserver events
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}
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// -----------------------------------------------------------------------------
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// CNSmlDMDbNotifier::OnSyncMLSessionEvent
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// -----------------------------------------------------------------------------
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//
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void CNSmlDMDbNotifier::OnSyncMLSessionEvent( TEvent aEvent,
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TInt aIdentifier,
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TInt aError,
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TInt /*aAdditionalData*/ )
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{
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TNSmlDMDbEvent event;
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event.iType = aEvent;
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event.iError = aError;
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if (aEvent == MSyncMLEventObserver::EProfileCreated ||
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aEvent == MSyncMLEventObserver::EProfileChanged ||
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aEvent == MSyncMLEventObserver::EProfileDeleted )
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{
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event.iProfileId = aIdentifier;
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}
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else
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{
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event.iProfileId = KErrNotFound;
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}
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TRAP_IGNORE( iList.AppendL (event) );
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CallObserverWithDelay();
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TRAP_IGNORE( RequestL() );
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}
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// -----------------------------------------------------------------------------
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// CNSmlDMDbNotifier::SetDisabled
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// -----------------------------------------------------------------------------
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//
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void CNSmlDMDbNotifier::SetDisabled( TBool aDisable )
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{
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iDisabled = aDisable;
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}
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// -----------------------------------------------------------------------------
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// CNSmlDMDbNotifier::Reset
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// -----------------------------------------------------------------------------
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//
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void CNSmlDMDbNotifier::Reset()
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{
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iDisabled = EFalse;
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iList.Reset();
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}
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// -----------------------------------------------------------------------------
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// CNSmlDMDbNotifier::EventCount
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// -----------------------------------------------------------------------------
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//
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TInt CNSmlDMDbNotifier::EventCount()
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{
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return iList.Count();
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}
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// -----------------------------------------------------------------------------
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// CNSmlDMDbNotifier::Event
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// -----------------------------------------------------------------------------
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//
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TNSmlDMDbEvent CNSmlDMDbNotifier::Event( TInt aIndex )
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{
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__ASSERT_DEBUG( aIndex >= 0 && aIndex < iList.Count(),
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TUtil::Panic(KErrGeneral) );
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return iList[aIndex];
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}
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// -----------------------------------------------------------------------------
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// CNSmlDMDbNotifier::Session
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// -----------------------------------------------------------------------------
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//
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RSyncMLSession& CNSmlDMDbNotifier::Session()
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{
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__ASSERT_DEBUG( iSyncSession, TUtil::Panic(KErrGeneral) );
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return *iSyncSession;
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}
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// -----------------------------------------------------------------------------
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// CNSmlDMDbNotifier::CallObserverWithDelay
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//
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// This is needed to avoid unnecessary observer calls (eg. in case 10 events are
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// reported in short time only last is reported to observer).
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// -----------------------------------------------------------------------------
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//
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void CNSmlDMDbNotifier::CallObserverWithDelay()
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{
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iActiveCaller->Cancel();
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iActiveCaller->Start( KErrNone, KListBoxUpdateDelay );
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}
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// -----------------------------------------------------------------------------
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// CNSmlDMDbNotifier::CallObserver
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//
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// this function investigates received events from last observer call
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// and calls observer to inform UI what to do.
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// -----------------------------------------------------------------------------
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//
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void CNSmlDMDbNotifier::CallObserver()
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{
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TNSmlDMDbEvent event;
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event.iProfileId = 0;
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event.iType = 0;
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event.iError = 0;
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//
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// check for critical error
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//
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if ( FindCloseEvent() != KErrNotFound )
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{
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event.iType = EClose;
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TRAP_IGNORE( iHandler->HandleDbEventL( event ) );
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return; // some database problem - UI should close
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}
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//
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// check if only one profile has changed
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//
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TInt index = FindSingleProfileEvent();
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if ( index != KErrNotFound )
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{
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TNSmlDMDbEvent e = iList[index];
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if (e.iType == MSyncMLEventObserver::EProfileDeleted)
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{
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event.iType = EDelete;
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event.iProfileId = e.iProfileId;
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}
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else
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{
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event.iType = EUpdate;
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event.iProfileId = e.iProfileId;
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}
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TRAP_IGNORE( iHandler->HandleDbEventL( event ) );
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return;
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}
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//
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// check if 2 or more profiles have changed
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//
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if (FindProfileEvent() != KErrNotFound)
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{
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event.iType = EUpdateAll;
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TRAP_IGNORE( iHandler->HandleDbEventL( event ) );
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return;
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}
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}
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// -----------------------------------------------------------------------------
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// CNSmlDMDbNotifier::FindCloseEvent
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// -----------------------------------------------------------------------------
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//
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TInt CNSmlDMDbNotifier::FindCloseEvent()
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{
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TInt count = iList.Count();
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for ( TInt index = 0; index < count; index++ )
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{
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TNSmlDMDbEvent event = iList[index];
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if ( event.iType == MSyncMLEventObserver::EServerTerminated )
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{
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return index;
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}
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}
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return KErrNotFound;
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}
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// -----------------------------------------------------------------------------
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// CNSmlDMDbNotifier::FindProfileEvent
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// -----------------------------------------------------------------------------
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//
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TInt CNSmlDMDbNotifier::FindProfileEvent()
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{
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TInt count = iList.Count();
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for ( TInt index = 0; index < count; index++ )
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{
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TNSmlDMDbEvent event = iList[index];
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if ( event.iProfileId != KErrNotFound )
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{
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return index;
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}
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}
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return KErrNotFound;
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}
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// -----------------------------------------------------------------------------
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// CNSmlDMDbNotifier::FindSingleProfileEvent
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// -----------------------------------------------------------------------------
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//
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TInt CNSmlDMDbNotifier::FindSingleProfileEvent()
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{
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TInt count = iList.Count();
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// find out whether list contains update events for one profile only
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for ( TInt index = 0; index < count; index++ )
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{
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TNSmlDMDbEvent event = iList[index];
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if ( event.iProfileId != KErrNotFound &&
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IsUniqueProfileId(event.iProfileId) )
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{
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return index;
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}
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}
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return KErrNotFound;
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}
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// -----------------------------------------------------------------------------
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// CNSmlDMDbNotifier::IsUniqueProfileId
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// -----------------------------------------------------------------------------
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//
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TBool CNSmlDMDbNotifier::IsUniqueProfileId( TInt aId )
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{
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TInt count = iList.Count();
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for ( TInt index = 0; index < count; index++ )
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{
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TNSmlDMDbEvent event = iList[index];
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if ( event.iProfileId != KErrNotFound && event.iProfileId != aId )
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{
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return EFalse;
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}
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}
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return ETrue;
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}
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// -----------------------------------------------------------------------------
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// CNSmlDMDbNotifier::HandleActiveCallL
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// -----------------------------------------------------------------------------
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//
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void CNSmlDMDbNotifier::HandleActiveCallL()
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{
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if ( iDisabled )
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{
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return; // UI has disabled notifications
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}
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if ( iSyncRunning )
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{
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return; // no UI updates while syncing
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}
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CallObserver();
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Reset();
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}
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// End of File
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