gecko/dom/system/unix/QTMLocationProvider.cpp
2012-07-30 17:20:58 +03:00

92 lines
2.4 KiB
C++

/* -*- Mode: c++; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#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 = nullptr;
return NS_OK;
}
NS_IMETHODIMP
QTMLocationProvider::SetHighAccuracy(bool)
{
return NS_OK;
}