/*

* Copyright (c) 2009 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:

*

*/

#include "cxutils.h"

#include "cxuidisplaypropertyhandler.h"

namespace {

    // Refresh period for the timer keeping backlight on.

    const int CXUI_BACKLIGHT_REFRESH_TIMEOUT = 3000;

}

CxuiDisplayPropertyHandler::CxuiDisplayPropertyHandler() :

    mBacklightTimer(this),

    mUtility(this)

{

    // Setup backlight timer

    mBacklightTimer.setSingleShot(false);

    mBacklightTimer.setInterval(CXUI_BACKLIGHT_REFRESH_TIMEOUT);

    QObject::connect(&mBacklightTimer,

                     SIGNAL(timeout()),

                     this,

                     SLOT(simulateActivity()));

}

CxuiDisplayPropertyHandler::~CxuiDisplayPropertyHandler()

{

    mBacklightTimer.stop();

}

/**

* Utility to keep backlight on and screensaver out.

* @param enabled True means backlight is kept on and screensaver is disabled.

*                False means backlight may time out and screensaver may come

*                on depending of user activity.

*/

void CxuiDisplayPropertyHandler::setDisplayAlwaysVisible(bool enabled)

{

    CX_DEBUG_ENTER_FUNCTION();

    if (enabled) {

        CX_DEBUG( ("CxuiDisplayPropertyHandler - setting display constantly on") );

        simulateActivity();

        mBacklightTimer.start();

    } else {

        CX_DEBUG( ("CxuiDisplayPropertyHandler - setting display to normal mode") );

        mBacklightTimer.stop();

    }

    CX_DEBUG_EXIT_FUNCTION();

}

void CxuiDisplayPropertyHandler::simulateActivity()

{

    mUtility.resetInactivityTime();

}