supl/locationsuplfw/settingsapi/src/epos_csuplsettingsnotifier.cpp
author Pat Downey <patd@symbian.org>
Wed, 01 Sep 2010 12:24:21 +0100
branchRCL_3
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parent 44 2b4ea9893b66
child 49 10852b179f64
permissions -rw-r--r--
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/*
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* Copyright (c) 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:  Notifier class implementation for SuplSettings
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*
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*/
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// INCLUDE FILES
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#include    <centralrepository.h>
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#include "epos_csuplsettings.h"
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#include "epos_csuplsettingsnotifier.h"
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#include "epos_msuplsettingsobserver.h"
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#include "epos_csuplsettingsinternalcrkeys.h"
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const TInt KMaxStrlen = 255;
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// ================= MEMBER FUNCTIONS =======================
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// C++ default constructor can NOT contain any code, that
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// might leave.
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//
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CSuplSettingsNotifier::CSuplSettingsNotifier(
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    MSuplSettingsObserver& aObserver,TBool aDBListener)
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    :CActive(CActive::EPriorityStandard),
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    iObserver(aObserver),
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    iStopObserve(EFalse),iDBListener(aDBListener),iImsi(NULL)
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    {
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    }
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// EPOC default constructor can leave.
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void CSuplSettingsNotifier::ConstructL()
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    {
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    CActiveScheduler::Add(this);
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    iRepository = CRepository::NewL(KCRUidSuplSettings);
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    iImsi = HBufC::NewL(KMaxStrlen);
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    // Start listening
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    StartListening();
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    }
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// Two-phased constructor.
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CSuplSettingsNotifier* CSuplSettingsNotifier::NewL(
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    MSuplSettingsObserver& aObserver,TBool aDBListener)
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    {
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    CSuplSettingsNotifier* self = 
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        new (ELeave) CSuplSettingsNotifier(aObserver,aDBListener);
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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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// Destructor
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CSuplSettingsNotifier::~CSuplSettingsNotifier()
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    {
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    Cancel();
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    delete iRepository;
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    iRepository = NULL;
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    delete iImsi;
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    }
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// ---------------------------------------------------------
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// CSuplSettingsNotifier::RunL
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// (other items were commented in a header).
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// ---------------------------------------------------------
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//
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void CSuplSettingsNotifier::RunL()
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    {
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    if(iDBListener) //if this flag is set this instance is listening for changes on the database
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        {
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        TInt event;
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        iRepository->Get(KSuplSettingsDBEvent, event);
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        TReal slpID;
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        iRepository->Get(KSuplSettingsDBChangedSLPId, slpID);
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        MSuplSettingsObserver::TSuplSettingsEventType eventType = (MSuplSettingsObserver::TSuplSettingsEventType)event;
0
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        iObserver.HandleSuplSettingsChangeL(eventType,slpID);
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        }
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    else
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        {
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        TInt usage;
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        iRepository->Get(KSuplSettingsUsage, usage);
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        if (iUsage != usage) //check if there was a change in the Supl usage value in the cen rep
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            iObserver.HandleSuplSettingsChangeL(MSuplSettingsObserver::ESuplSettingsEventSuplUsageChange);
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        else //else check if any of the other config parameters changed
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            {
0
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            TInt fallBackValue;
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            TInt fallBackTimerValue;
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            TBuf<KMaxStrlen> imsi;
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            iRepository->Get(KSuplSettingsFallBack,fallBackValue);
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            iRepository->Get(KSuplSettingsFallBackTimer,fallBackTimerValue);
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            iRepository->Get(KSuplSettingsIMSI,imsi);
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            if(fallBackValue != iFallBackValue || fallBackTimerValue != iFallBackTimerValue || imsi.Compare(*iImsi))
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                iObserver.HandleSuplSettingsChangeL(MSuplSettingsObserver::ESuplSettingsEventCommParameterChange);
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            }
0
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        }
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    StartListening();
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    }
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// ---------------------------------------------------------
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// CSuplSettingsNotifier::DoCancel
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// (other items were commented in a header).
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// ---------------------------------------------------------
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//
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void CSuplSettingsNotifier::DoCancel()
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    {
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    iStopObserve = ETrue;
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    if(iDBListener)
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        {
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        iRepository->NotifyCancel(KSuplSettingsDBEvent);
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        }
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    else
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        iRepository->NotifyCancel(0x00000000, 0x00000000);
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    }
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// ---------------------------------------------------------
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// CSuplSettingsNotifier::RunError
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// (other items were commented in a header).
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// ---------------------------------------------------------
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//
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TInt CSuplSettingsNotifier::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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// CSuplSettingsNotifier::StartListening
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// (other items were commented in a header).
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// ---------------------------------------------------------
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//
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void CSuplSettingsNotifier::StartListening()
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    {
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    iStatus = KRequestPending;
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    if(iDBListener)
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        {
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        // Request for notification for DB field change
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        iRepository->NotifyRequest(KSuplSettingsDBEvent, iStatus);
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        }
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    else
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        {
45
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        TInt usage;
0
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        TBuf<KMaxStrlen> imsi;
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        iRepository->Get(KSuplSettingsUsage, usage);
0
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        iRepository->Get(KSuplSettingsFallBack,iFallBackValue);
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        iRepository->Get(KSuplSettingsFallBackTimer,iFallBackTimerValue);
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        iRepository->Get(KSuplSettingsIMSI,imsi);
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        if(iImsi)
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            iImsi->Des() = imsi;
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        iUsage = (CSuplSettings::TSuplSettingsUsage) usage;
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0
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        // Request for notification for any field change
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        iRepository->NotifyRequest(0x00000000, 0x00000000, iStatus);
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        }
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    SetActive();
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    }
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//  End of File