/*

* Copyright (c) 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:

*

*/

#include <QTimer>

#include "hsclockwidgettimer.h"

/*!

    \class HsClockWidgetTimer

    \ingroup group_hsclockwidgetplugin

    \brief Common timer for all clock widgets that run in the HS process.

*/

/*!

    Constructs new timer with the given \a parent.

*/

HsClockWidgetTimer::HsClockWidgetTimer(QObject *parent)

  : QObject(parent),

    mTimer(0)

{

    mTimer = new QTimer(this);

    mTimer->setInterval(1000);    

    connect(mTimer, SIGNAL(timeout()), SLOT(onTick()));

}

/*!

    Destructor.

*/

HsClockWidgetTimer::~HsClockWidgetTimer()

{

    mTimer->stop();

}

/*!

    Return the static timer instance.

*/

HsClockWidgetTimer *HsClockWidgetTimer::instance()

{

    if (!mInstance) {

        mInstance = new HsClockWidgetTimer;

    }

    return mInstance;

}

/*!

    \internal

*/

void HsClockWidgetTimer::connectNotify(const char *signal)

{

    mTimer->start();

    QObject::connectNotify(signal);

}

/*!

    \internal

*/

void HsClockWidgetTimer::disconnectNotify(const char *signal)

{

    if (receivers(SIGNAL(tick())) == 0) {

        mTimer->stop();

    }

    QObject::disconnectNotify(signal);

}

/*!

    \internal

*/

void HsClockWidgetTimer::onTick()

{

    if (0 < receivers(SIGNAL(tick()))) {        

        emit tick();

    } else {        

        mTimer->stop();

    }    

}

/*!

    Static timer.

*/

HsClockWidgetTimer *HsClockWidgetTimer::mInstance = 0;