WebCore/platform/qt/GeolocationServiceQt.cpp

/*
 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
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#include "config.h"
#include "GeolocationServiceQt.h"

#include "Geolocation.h"
#include "Geoposition.h"
#include "PositionError.h"
#include "PositionOptions.h"

using namespace QtMobility;

namespace WebCore {

GeolocationService::FactoryFunction* GeolocationService::s_factoryFunction = &GeolocationServiceQt::create;

GeolocationService* GeolocationServiceQt::create(GeolocationServiceClient* client)
{
    return new GeolocationServiceQt(client);
}

GeolocationServiceQt::GeolocationServiceQt(GeolocationServiceClient* client)
    : GeolocationService(client)
    , m_lastPosition(0)
    , m_lastError(0)
{
    m_location = QGeoPositionInfoSource::createDefaultSource(this);

    if (m_location)
        connect(m_location, SIGNAL(positionUpdated(QGeoPositionInfo)), this, SLOT(positionUpdated(QGeoPositionInfo)));
}

GeolocationServiceQt::~GeolocationServiceQt()
{
}

void GeolocationServiceQt::positionUpdated(const QGeoPositionInfo &geoPosition)
{
    if (!geoPosition.isValid())
        errorOccurred();

    QGeoCoordinate coord = geoPosition.coordinate();
    double latitude = coord.latitude();
    double longitude = coord.longitude();
    bool providesAltitude = true;
    double altitude = coord.altitude();

    double accuracy = geoPosition.hasAttribute(QGeoPositionInfo::HorizontalAccuracy) ?
                        geoPosition.attribute(QGeoPositionInfo::HorizontalAccuracy) : 0.0;

    bool providesAltitudeAccuracy = geoPosition.hasAttribute(QGeoPositionInfo::VerticalAccuracy);
    double altitudeAccuracy = providesAltitudeAccuracy ? geoPosition.attribute(QGeoPositionInfo::VerticalAccuracy) : 0.0;

    bool providesHeading =  geoPosition.hasAttribute(QGeoPositionInfo::Direction);
    double heading = providesHeading ? geoPosition.attribute(QGeoPositionInfo::Direction) : 0.0;

    bool providesSpeed = geoPosition.hasAttribute(QGeoPositionInfo::GroundSpeed);
    double speed = providesSpeed ? geoPosition.attribute(QGeoPositionInfo::GroundSpeed) : 0.0;

    RefPtr<Coordinates> coordinates = Coordinates::create(latitude, longitude, providesAltitude, altitude,
                                                          accuracy, providesAltitudeAccuracy, altitudeAccuracy,
                                                          providesHeading, heading, providesSpeed, speed);
    m_lastPosition = Geoposition::create(coordinates.release(), geoPosition.timestamp().toTime_t());
    positionChanged();
}

bool GeolocationServiceQt::startUpdating(PositionOptions*)
{
    m_lastPosition = 0;

    if (!m_location)
        return false;

    // TODO: handle enableHighAccuracy()

    m_location->startUpdates();
    return true;
}

void GeolocationServiceQt::stopUpdating()
{
    if (m_location)
        m_location->stopUpdates();
}

} // namespace WebCore