gecko/dom/system/unix/QTMLocationProvider.cpp

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/* -*- Mode: c++; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Qt code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Oleg Romashin <romaxa@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "QTMLocationProvider.h"
#include "nsGeoPosition.h"
using namespace QtMobility;
using namespace mozilla;
NS_IMPL_ISUPPORTS1(QTMLocationProvider, nsIGeolocationProvider)
QTMLocationProvider::QTMLocationProvider()
{
mLocation = QGeoPositionInfoSource::createDefaultSource(this);
if (mLocation)
connect(mLocation, SIGNAL(positionUpdated(QGeoPositionInfo)), this, SLOT(positionUpdated(QGeoPositionInfo)));
}
QTMLocationProvider::~QTMLocationProvider()
{
delete mLocation;
}
void
QTMLocationProvider::positionUpdated(const QGeoPositionInfo &geoPosition)
{
if (!geoPosition.isValid()) {
NS_WARNING("Invalida geoposition received");
return;
}
QGeoCoordinate coord = geoPosition.coordinate();
double latitude = coord.latitude();
double longitude = coord.longitude();
double altitude = coord.altitude();
double accuracy = geoPosition.attribute(QGeoPositionInfo::HorizontalAccuracy);
double altitudeAccuracy = geoPosition.attribute(QGeoPositionInfo::VerticalAccuracy);
double heading = geoPosition.attribute(QGeoPositionInfo::Direction);
bool providesSpeed = geoPosition.hasAttribute(QGeoPositionInfo::GroundSpeed);
double speed = geoPosition.attribute(QGeoPositionInfo::GroundSpeed);
nsRefPtr<nsGeoPosition> p =
new nsGeoPosition(latitude, longitude,
altitude, accuracy,
altitudeAccuracy, heading,
speed, geoPosition.timestamp().toTime_t());
if (mCallback) {
mCallback->Update(p);
}
}
NS_IMETHODIMP
QTMLocationProvider::Startup()
{
if (!mLocation)
return NS_ERROR_NOT_IMPLEMENTED;
mLocation->startUpdates();
return NS_OK;
}
NS_IMETHODIMP
QTMLocationProvider::Watch(nsIGeolocationUpdate* aCallback)
{
mCallback = aCallback;
return NS_OK;
}
NS_IMETHODIMP
QTMLocationProvider::Shutdown()
{
if (!mLocation)
return NS_ERROR_NOT_IMPLEMENTED;
mLocation->stopUpdates();
mCallback = nsnull;
return NS_OK;
}