/****************************************************************************
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** This file is part of the QtSensors module of the Qt Toolkit.
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** Public License version 3.0 as published by the Free Software Foundation
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****************************************************************************/

#include <QtSensors/QSensor>

#include "qturnoversensorgesturerecognizer.h"
QT_BEGIN_NAMESPACE

// turnover and put down i.e. facedown

QTurnoverSensorGestureRecognizer::QTurnoverSensorGestureRecognizer(QObject *parent) :
    QSensorGestureRecognizer(parent),
    isClose(0)
  , isFaceDown(0)
{
}

QTurnoverSensorGestureRecognizer::~QTurnoverSensorGestureRecognizer()
{
}

void QTurnoverSensorGestureRecognizer::create()
{
    orientation = new QOrientationSensor(this);
    orientation->connectToBackend();
    proximity = new QProximitySensor(this);
    proximity->connectToBackend();


}

bool QTurnoverSensorGestureRecognizer::start()
{
    connect(orientation,SIGNAL(readingChanged()),this,SLOT(orientationChanged()));
    connect(proximity,SIGNAL(readingChanged()),this,SLOT(proximityChanged()));
    active = (orientation->start() && proximity->start());
    return active;
}

bool QTurnoverSensorGestureRecognizer::stop()
{
    orientation->stop();
    proximity->stop();
    active = (orientation->isActive() && proximity->isActive());
    disconnect(orientation,SIGNAL(readingChanged()),this,SLOT(orientationChanged()));
    disconnect(proximity,SIGNAL(readingChanged()),this,SLOT(proximityChanged()));
    return !active;
}

bool QTurnoverSensorGestureRecognizer::isActive()
{
    return active;
}

QString QTurnoverSensorGestureRecognizer::id() const
{
    return QString("QtSensors.turnover");
}

void QTurnoverSensorGestureRecognizer::proximityChanged()
{
    isClose = proximity->reading()->close();
    isRecognized();
}

void QTurnoverSensorGestureRecognizer::orientationChanged()
{
    switch (orientation->reading()->orientation()) {
       case  QOrientationReading::FaceDown:
    {
        isFaceDown = true;
        isRecognized();
    }
        break;
    default:
        isFaceDown = false;
        break;
    };
}

void QTurnoverSensorGestureRecognizer::isRecognized()
{
    if (isClose && isFaceDown) {
        Q_EMIT turnover();
        Q_EMIT detected("turnover");
    }
}
QT_END_NAMESPACE