dom/system/mac/CoreLocationLocationProvider.mm

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/dom/system/mac/CoreLocationLocationProvider.mm	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,196 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* vim:set ts=2 sw=2 sts=2 et cindent: */
     1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.9 +
    1.10 +#include "nsCOMPtr.h"
    1.11 +#include "nsGeoPosition.h"
    1.12 +#include "nsIConsoleService.h"
    1.13 +#include "nsServiceManagerUtils.h"
    1.14 +#include "nsIDOMGeoPositionError.h"
    1.15 +#include "CoreLocationLocationProvider.h"
    1.16 +#include "nsCocoaFeatures.h"
    1.17 +#include "prtime.h"
    1.18 +
    1.19 +#include <CoreLocation/CLError.h>
    1.20 +#include <CoreLocation/CLLocation.h>
    1.21 +#include <CoreLocation/CLLocationManager.h>
    1.22 +#include <CoreLocation/CLLocationManagerDelegate.h>
    1.23 +
    1.24 +#include <objc/objc.h>
    1.25 +#include <objc/objc-runtime.h>
    1.26 +
    1.27 +#include "nsObjCExceptions.h"
    1.28 +
    1.29 +using namespace mozilla;
    1.30 +
    1.31 +static const CLLocationAccuracy kHIGH_ACCURACY = kCLLocationAccuracyBest;
    1.32 +static const CLLocationAccuracy kDEFAULT_ACCURACY = kCLLocationAccuracyNearestTenMeters;
    1.33 +
    1.34 +@interface LocationDelegate : NSObject <CLLocationManagerDelegate>
    1.35 +{
    1.36 +  CoreLocationLocationProvider* mProvider;
    1.37 +}
    1.38 +
    1.39 +- (id)init:(CoreLocationLocationProvider*)aProvider;
    1.40 +- (void)locationManager:(CLLocationManager*)aManager
    1.41 +  didFailWithError:(NSError *)aError;
    1.42 +
    1.43 +/* XXX (ggp) didUpdateToLocation is supposedly deprecated in favor of
    1.44 + * locationManager:didUpdateLocations, which is undocumented and didn't seem to
    1.45 + * work for me. This should be changed in the future, though.
    1.46 + */
    1.47 +- (void)locationManager:(CLLocationManager*)aManager
    1.48 +  didUpdateToLocation:(CLLocation *)aNewLocation
    1.49 +  fromLocation:(CLLocation *)aOldLocation;
    1.50 +@end
    1.51 +
    1.52 +@implementation LocationDelegate
    1.53 +- (id) init:(CoreLocationLocationProvider*) aProvider
    1.54 +{
    1.55 +  if (self = [super init]) {
    1.56 +    mProvider = aProvider;
    1.57 +  }
    1.58 +
    1.59 +  return self;
    1.60 +}
    1.61 +
    1.62 +- (void)locationManager:(CLLocationManager*)aManager
    1.63 +  didFailWithError:(NSError *)aError
    1.64 +{
    1.65 +  nsCOMPtr<nsIConsoleService> console =
    1.66 +    do_GetService(NS_CONSOLESERVICE_CONTRACTID);
    1.67 +
    1.68 +  NS_ENSURE_TRUE_VOID(console);
    1.69 +
    1.70 +  NSString* message =
    1.71 +    [@"Failed to acquire position: " stringByAppendingString: [aError localizedDescription]];
    1.72 +
    1.73 +  console->LogStringMessage(NS_ConvertUTF8toUTF16([message UTF8String]).get());
    1.74 +
    1.75 +  uint16_t err = nsIDOMGeoPositionError::POSITION_UNAVAILABLE;
    1.76 +  if ([aError code] == kCLErrorDenied) {
    1.77 +    err = nsIDOMGeoPositionError::PERMISSION_DENIED;
    1.78 +  }
    1.79 +
    1.80 +  mProvider->NotifyError(err);
    1.81 +}
    1.82 +
    1.83 +- (void)locationManager:(CLLocationManager*)aManager
    1.84 +  didUpdateToLocation:(CLLocation *)aNewLocation
    1.85 +  fromLocation:(CLLocation *)aOldLocation
    1.86 +{
    1.87 +  nsCOMPtr<nsIDOMGeoPosition> geoPosition =
    1.88 +    new nsGeoPosition(aNewLocation.coordinate.latitude,
    1.89 +                      aNewLocation.coordinate.longitude,
    1.90 +                      aNewLocation.altitude,
    1.91 +                      aNewLocation.horizontalAccuracy,
    1.92 +                      aNewLocation.verticalAccuracy,
    1.93 +                      aNewLocation.course,
    1.94 +                      aNewLocation.speed,
    1.95 +                      PR_Now());
    1.96 +
    1.97 +  mProvider->Update(geoPosition);
    1.98 +}
    1.99 +@end
   1.100 +
   1.101 +class CoreLocationObjects {
   1.102 +public:
   1.103 +  NS_METHOD Init(CoreLocationLocationProvider* aProvider) {
   1.104 +    mLocationManager = [[CLLocationManager alloc] init];
   1.105 +    NS_ENSURE_TRUE(mLocationManager, NS_ERROR_NOT_AVAILABLE);
   1.106 +
   1.107 +    mLocationDelegate = [[LocationDelegate alloc] init:aProvider];
   1.108 +    NS_ENSURE_TRUE(mLocationDelegate, NS_ERROR_NOT_AVAILABLE);
   1.109 +
   1.110 +    mLocationManager.desiredAccuracy = kDEFAULT_ACCURACY;
   1.111 +    mLocationManager.delegate = mLocationDelegate;
   1.112 +
   1.113 +    return NS_OK;
   1.114 +  }
   1.115 +
   1.116 +  ~CoreLocationObjects() {
   1.117 +    if (mLocationManager) {
   1.118 +      [mLocationManager release];
   1.119 +    }
   1.120 +
   1.121 +    if (mLocationDelegate) {
   1.122 +      [mLocationDelegate release];
   1.123 +    }
   1.124 +  }
   1.125 +
   1.126 +  LocationDelegate* mLocationDelegate;
   1.127 +  CLLocationManager* mLocationManager;
   1.128 +};
   1.129 +
   1.130 +NS_IMPL_ISUPPORTS(CoreLocationLocationProvider, nsIGeolocationProvider)
   1.131 +
   1.132 +CoreLocationLocationProvider::CoreLocationLocationProvider()
   1.133 +  : mCLObjects(nullptr)
   1.134 +{
   1.135 +}
   1.136 +
   1.137 +NS_IMETHODIMP
   1.138 +CoreLocationLocationProvider::Startup()
   1.139 +{
   1.140 +  if (!mCLObjects) {
   1.141 +    nsAutoPtr<CoreLocationObjects> clObjs(new CoreLocationObjects());
   1.142 +
   1.143 +    nsresult rv = clObjs->Init(this);
   1.144 +    NS_ENSURE_SUCCESS(rv, rv);
   1.145 +
   1.146 +    mCLObjects = clObjs.forget();
   1.147 +  }
   1.148 +
   1.149 +  [mCLObjects->mLocationManager startUpdatingLocation];
   1.150 +  return NS_OK;
   1.151 +}
   1.152 +
   1.153 +NS_IMETHODIMP
   1.154 +CoreLocationLocationProvider::Watch(nsIGeolocationUpdate* aCallback)
   1.155 +{
   1.156 +  if (mCallback) {
   1.157 +    return NS_OK;
   1.158 +  }
   1.159 +
   1.160 +  mCallback = aCallback;
   1.161 +  return NS_OK;
   1.162 +}
   1.163 +
   1.164 +NS_IMETHODIMP
   1.165 +CoreLocationLocationProvider::Shutdown()
   1.166 +{
   1.167 +  NS_ENSURE_STATE(mCLObjects);
   1.168 +
   1.169 +  [mCLObjects->mLocationManager stopUpdatingLocation];
   1.170 +
   1.171 +  delete mCLObjects;
   1.172 +  mCLObjects = nullptr;
   1.173 +  return NS_OK;
   1.174 +}
   1.175 +
   1.176 +NS_IMETHODIMP
   1.177 +CoreLocationLocationProvider::SetHighAccuracy(bool aEnable)
   1.178 +{
   1.179 +  NS_ENSURE_STATE(mCLObjects);
   1.180 +
   1.181 +  mCLObjects->mLocationManager.desiredAccuracy =
   1.182 +    (aEnable ? kHIGH_ACCURACY : kDEFAULT_ACCURACY);
   1.183 +
   1.184 +  return NS_OK;
   1.185 +}
   1.186 +
   1.187 +void
   1.188 +CoreLocationLocationProvider::Update(nsIDOMGeoPosition* aSomewhere)
   1.189 +{
   1.190 +  if (aSomewhere && mCallback) {
   1.191 +    mCallback->Update(aSomewhere);
   1.192 +  }
   1.193 +}
   1.194 +
   1.195 +void
   1.196 +CoreLocationLocationProvider::NotifyError(uint16_t aErrorCode)
   1.197 +{
   1.198 +  mCallback->NotifyError(aErrorCode);
   1.199 +}

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