The Tor Browser: dom/system/qt/QTMLocationProvider.cpp@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: c++; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-

     2  * This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #include "QTMLocationProvider.h"

     7 #include "nsGeoPosition.h"

     9 using namespace mozilla;

    11 NS_IMPL_ISUPPORTS(QTMLocationProvider, nsIGeolocationProvider)

    13 QTMLocationProvider::QTMLocationProvider()

    14 {

    15     if (QMetaType::type("QGeoPositionInfo") == QMetaType::UnknownType) {

    16         qRegisterMetaType<QGeoPositionInfo>("QGeoPositionInfo");

    17     }

    18     mLocation = QGeoPositionInfoSource::createDefaultSource(this);

    19     if (mLocation)

    20         connect(mLocation, SIGNAL(positionUpdated(QGeoPositionInfo)), this, SLOT(positionUpdated(QGeoPositionInfo)));

    21 }

    23 QTMLocationProvider::~QTMLocationProvider()

    24 {

    25     delete mLocation;

    26 }

    28 void

    29 QTMLocationProvider::positionUpdated(const QGeoPositionInfo &geoPosition)

    30 {

    31     if (!geoPosition.isValid()) {

    32         NS_WARNING("Invalida geoposition received");

    33         return;

    34     }

    36     QGeoCoordinate coord = geoPosition.coordinate();

    37     double latitude = coord.latitude();

    38     double longitude = coord.longitude();

    39     double altitude = coord.altitude();

    40     double accuracy = geoPosition.attribute(QGeoPositionInfo::HorizontalAccuracy);

    41     double altitudeAccuracy = geoPosition.attribute(QGeoPositionInfo::VerticalAccuracy);

    42     double heading = geoPosition.attribute(QGeoPositionInfo::Direction);

    44     bool providesSpeed = geoPosition.hasAttribute(QGeoPositionInfo::GroundSpeed);

    45     double speed = geoPosition.attribute(QGeoPositionInfo::GroundSpeed);

    47     nsRefPtr<nsGeoPosition> p =

    48         new nsGeoPosition(latitude, longitude,

    49                           altitude, accuracy,

    50                           altitudeAccuracy, heading,

    51                           speed, geoPosition.timestamp().toTime_t());

    52     if (mCallback) {

    53         mCallback->Update(p);

    54     }

    55 }

    57 NS_IMETHODIMP

    58 QTMLocationProvider::Startup()

    59 {

    60     if (!mLocation)

    61         return NS_ERROR_NOT_IMPLEMENTED;

    63     // Not all versions of qt5positioning set default prefered method

    64     // thus this workaround initializing QGeoPositionSource explicitly

    65     SetHighAccuracy(false);

    66     mLocation->startUpdates();

    68     return NS_OK;

    69 }

    71 NS_IMETHODIMP

    72 QTMLocationProvider::Watch(nsIGeolocationUpdate* aCallback)

    73 {

    74     mCallback = aCallback;

    76     return NS_OK;

    77 }

    79 NS_IMETHODIMP

    80 QTMLocationProvider::Shutdown()

    81 {

    82     if (!mLocation)

    83         return NS_ERROR_NOT_IMPLEMENTED;

    85     mLocation->stopUpdates();

    86     mCallback = nullptr;

    88     return NS_OK;

    89 }

    91 NS_IMETHODIMP

    92 QTMLocationProvider::SetHighAccuracy(bool aHigh)

    93 {

    94     if (!mLocation)

    95         return NS_ERROR_NOT_IMPLEMENTED;

    97     mLocation->setPreferredPositioningMethods(aHigh ?

    98                                               QGeoPositionInfoSource::SatellitePositioningMethods :

    99                                               QGeoPositionInfoSource::AllPositioningMethods);

   100     return NS_OK;

   101 }

The Tor Browser / file revision