skins/AknSkins/srvsrc/aknssrvwallpapertimer.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 09:14:12 +0200
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/*
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* Copyright (c) 2007-2008 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:  Slide set wallpaper timer.
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*
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*/
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#include "aknssrvwallpapertimer.h"
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// ======== MEMBER FUNCTIONS ========
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// ---------------------------------------------------------------------------
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// Constructor.
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// ---------------------------------------------------------------------------
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//
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CAknsSrvWallpaperTimer* CAknsSrvWallpaperTimer::NewL(
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    MAknsSrvWallpaperListener* aListener )
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    {
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    CAknsSrvWallpaperTimer* self =
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        new (ELeave)CAknsSrvWallpaperTimer( aListener );
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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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// Handles an active object's request completion event.
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// ---------------------------------------------------------------------------
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//
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void CAknsSrvWallpaperTimer::RunL()
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    {
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    if ( iStatus.Int() == KErrAbort && !iCanceled )
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        {
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        TTime now;
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        now.HomeTime();
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        TTimeIntervalSeconds seconds;
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        now.SecondsFrom( iPreviousTime, seconds );
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        if ( seconds.Int() < iInterval )
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            {
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            IssueRequest( iInterval-seconds.Int() );
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            return;
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            }
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        }
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    iListener->WallpaperTimerTimeoutL();
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    if ( !iCanceled )
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        {
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        IssueRequest();
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        }
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    }
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// ---------------------------------------------------------------------------
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// Cancels request.
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// ---------------------------------------------------------------------------
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//
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void CAknsSrvWallpaperTimer::DoCancel()
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    {
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    iCanceled = ETrue;
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    iTimer.Cancel();
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    }
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// ---------------------------------------------------------------------------
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// Issues a new request.
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// ---------------------------------------------------------------------------
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//
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void CAknsSrvWallpaperTimer::IssueRequest( TInt aTempInterval )
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    {
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    iCanceled = EFalse;
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    if ( !IsActive() )
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        {
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        TTime now;
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        now.HomeTime();
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        if ( aTempInterval )
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            {
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            now += TTimeIntervalSeconds( aTempInterval );
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            }
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        else
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            {
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            iPreviousTime = now;
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            now += TTimeIntervalSeconds( iInterval );
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            }
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        iTimer.At( iStatus, now );
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        SetActive();
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        }
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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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CAknsSrvWallpaperTimer::~CAknsSrvWallpaperTimer()
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    {
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    iTimer.Close();
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    }
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// ---------------------------------------------------------------------------
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// Second phase constructor.
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// ---------------------------------------------------------------------------
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//
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void CAknsSrvWallpaperTimer::ConstructL()
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    {
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    User::LeaveIfError( iTimer.CreateLocal() );
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    }
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// ---------------------------------------------------------------------------
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// C++ constructor.
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// ---------------------------------------------------------------------------
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//
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CAknsSrvWallpaperTimer::CAknsSrvWallpaperTimer(
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    MAknsSrvWallpaperListener* aListener ) :
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        CActive( CActive::EPriorityStandard ),
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        iListener( aListener )
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    {
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    CActiveScheduler::Add( this );
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    }
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// ---------------------------------------------------------------------------
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// Returns the interval period of the timer.
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// ---------------------------------------------------------------------------
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//
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TInt CAknsSrvWallpaperTimer::Interval()
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    {
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    return iInterval;
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    }
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// ---------------------------------------------------------------------------
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// Start the timer.
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// ---------------------------------------------------------------------------
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//
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void CAknsSrvWallpaperTimer::Start( TInt aInterval )
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    {
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    Cancel();
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    iInterval = aInterval;
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    IssueRequest();
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    }
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// ---------------------------------------------------------------------------
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// Stop the timer.
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// ---------------------------------------------------------------------------
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//
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void CAknsSrvWallpaperTimer::Stop()
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    {
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    Cancel();
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    }
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// End of file