/*

* Copyright (c) 2007-2008 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:  Slide set wallpaper timer.

*

*/

#include "aknssrvwallpapertimer.h"

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

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

// Constructor.

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

//

CAknsSrvWallpaperTimer* CAknsSrvWallpaperTimer::NewL(

    MAknsSrvWallpaperListener* aListener )

    {

    CAknsSrvWallpaperTimer* self =

        new (ELeave)CAknsSrvWallpaperTimer( aListener );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// Handles an active object's request completion event.

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

//

void CAknsSrvWallpaperTimer::RunL()

    {

    if ( iStatus.Int() == KErrAbort && !iCanceled )

        {

        TTime now;

        now.HomeTime();

        TTimeIntervalSeconds seconds;

        now.SecondsFrom( iPreviousTime, seconds );

        if ( seconds.Int() < iInterval )

            {

            IssueRequest( iInterval-seconds.Int() );

            return;

            }

        }

    iListener->WallpaperTimerTimeoutL();

    if ( !iCanceled )

        {

        IssueRequest();

        }

    }

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

// Cancels request.

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

//

void CAknsSrvWallpaperTimer::DoCancel()

    {

    iCanceled = ETrue;

    iTimer.Cancel();

    }

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

// Issues a new request.

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

//

void CAknsSrvWallpaperTimer::IssueRequest( TInt aTempInterval )

    {

    iCanceled = EFalse;

    if ( !IsActive() )

        {

        TTime now;

        now.HomeTime();

        if ( aTempInterval )

            {

            now += TTimeIntervalSeconds( aTempInterval );

            }

        else

            {

            iPreviousTime = now;

            now += TTimeIntervalSeconds( iInterval );

            }

        iTimer.At( iStatus, now );

        SetActive();

        }

    }

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

// Destructor.

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

//

CAknsSrvWallpaperTimer::~CAknsSrvWallpaperTimer()

    {

    iTimer.Close();

    }

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

// Second phase constructor.

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

//

void CAknsSrvWallpaperTimer::ConstructL()

    {

    User::LeaveIfError( iTimer.CreateLocal() );

    }

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

// C++ constructor.

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

//

CAknsSrvWallpaperTimer::CAknsSrvWallpaperTimer(

    MAknsSrvWallpaperListener* aListener ) :

        CActive( CActive::EPriorityStandard ),

        iListener( aListener )

    {

    CActiveScheduler::Add( this );

    }

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

// Returns the interval period of the timer.

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

//

TInt CAknsSrvWallpaperTimer::Interval()

    {

    return iInterval;

    }

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

// Start the timer.

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

//

void CAknsSrvWallpaperTimer::Start( TInt aInterval )

    {

    Cancel();

    iInterval = aInterval;

    IssueRequest();

    }

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

// Stop the timer.

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

//

void CAknsSrvWallpaperTimer::Stop()

    {

    Cancel();

    }

// End of file