/*+
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* Copyright (c) 2009 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:+
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*+
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*/+
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+
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#include "cxutils.h"+
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#include "cxuidisplaypropertyhandler.h"+
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+
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namespace {+
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    // Refresh period for the timer keeping backlight on.+
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    const int CXUI_BACKLIGHT_REFRESH_TIMEOUT = 3000;+
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}+
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+
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CxuiDisplayPropertyHandler::CxuiDisplayPropertyHandler() :+
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    mBacklightTimer(this),+
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    mUtility(this)+
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{+
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    // Setup backlight timer+
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    mBacklightTimer.setSingleShot(false);+
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    mBacklightTimer.setInterval(CXUI_BACKLIGHT_REFRESH_TIMEOUT);+
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    QObject::connect(&mBacklightTimer,+
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                     SIGNAL(timeout()),+
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                     this,+
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                     SLOT(simulateActivity()));+
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}+
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+
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CxuiDisplayPropertyHandler::~CxuiDisplayPropertyHandler()+
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{+
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    mBacklightTimer.stop();+
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}+
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+
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/**+
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* Utility to keep backlight on and screensaver out.+
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* @param enabled True means backlight is kept on and screensaver is disabled.+
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*                False means backlight may time out and screensaver may come+
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*                on depending of user activity.+
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*/+
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void CxuiDisplayPropertyHandler::setDisplayAlwaysVisible(bool enabled)+
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{+
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    CX_DEBUG_ENTER_FUNCTION();+
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+
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    if (enabled) {+
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        CX_DEBUG( ("CxuiDisplayPropertyHandler - setting display constantly on") );+
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        simulateActivity();+
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        mBacklightTimer.start();+
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    } else {+
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        CX_DEBUG( ("CxuiDisplayPropertyHandler - setting display to normal mode") );+
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        mBacklightTimer.stop();+
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    }+
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+
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    CX_DEBUG_EXIT_FUNCTION();+
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}+
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+
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void CxuiDisplayPropertyHandler::simulateActivity()+
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{+
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    mUtility.resetInactivityTime();+
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}+
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