gecko/dom/system/mac/CoreLocationLocationProvider.mm

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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 "nsCOMPtr.h"
#include "nsGeoPosition.h"
#include "nsIConsoleService.h"
#include "nsServiceManagerUtils.h"
#include "nsIDOMGeoPositionError.h"
#include "CoreLocationLocationProvider.h"
#include "nsCocoaFeatures.h"
#include "prtime.h"
#include <CoreLocation/CLError.h>
#include <CoreLocation/CLLocation.h>
#include <CoreLocation/CLLocationManager.h>
#include <CoreLocation/CLLocationManagerDelegate.h>
#include <objc/objc.h>
#include <objc/objc-runtime.h>
#include "nsObjCExceptions.h"
using namespace mozilla;
static const CLLocationAccuracy kHIGH_ACCURACY = kCLLocationAccuracyBest;
static const CLLocationAccuracy kDEFAULT_ACCURACY = kCLLocationAccuracyNearestTenMeters;
@interface LocationDelegate : NSObject <CLLocationManagerDelegate>
{
CoreLocationLocationProvider* mProvider;
}
- (id)init:(CoreLocationLocationProvider*)aProvider;
- (void)locationManager:(CLLocationManager*)aManager
didFailWithError:(NSError *)aError;
/* XXX (ggp) didUpdateToLocation is supposedly deprecated in favor of
* locationManager:didUpdateLocations, which is undocumented and didn't seem to
* work for me. This should be changed in the future, though.
*/
- (void)locationManager:(CLLocationManager*)aManager
didUpdateToLocation:(CLLocation *)aNewLocation
fromLocation:(CLLocation *)aOldLocation;
@end
@implementation LocationDelegate
- (id) init:(CoreLocationLocationProvider*) aProvider
{
if (self = [super init]) {
mProvider = aProvider;
}
return self;
}
- (void)locationManager:(CLLocationManager*)aManager
didFailWithError:(NSError *)aError
{
nsCOMPtr<nsIConsoleService> console =
do_GetService(NS_CONSOLESERVICE_CONTRACTID);
NS_ENSURE_TRUE_VOID(console);
NSString* message =
[@"Failed to acquire position: " stringByAppendingString: [aError localizedDescription]];
console->LogStringMessage(NS_ConvertUTF8toUTF16([message UTF8String]).get());
uint16_t err = nsIDOMGeoPositionError::POSITION_UNAVAILABLE;
if ([aError code] == kCLErrorDenied) {
err = nsIDOMGeoPositionError::PERMISSION_DENIED;
}
mProvider->NotifyError(err);
}
- (void)locationManager:(CLLocationManager*)aManager
didUpdateToLocation:(CLLocation *)aNewLocation
fromLocation:(CLLocation *)aOldLocation
{
nsCOMPtr<nsIDOMGeoPosition> geoPosition =
new nsGeoPosition(aNewLocation.coordinate.latitude,
aNewLocation.coordinate.longitude,
aNewLocation.altitude,
aNewLocation.horizontalAccuracy,
aNewLocation.verticalAccuracy,
aNewLocation.course,
aNewLocation.speed,
PR_Now());
mProvider->Update(geoPosition);
}
@end
class CoreLocationObjects {
public:
NS_METHOD Init(CoreLocationLocationProvider* aProvider) {
mLocationManager = [[CLLocationManager alloc] init];
NS_ENSURE_TRUE(mLocationManager, NS_ERROR_NOT_AVAILABLE);
mLocationDelegate = [[LocationDelegate alloc] init:aProvider];
NS_ENSURE_TRUE(mLocationDelegate, NS_ERROR_NOT_AVAILABLE);
mLocationManager.desiredAccuracy = kDEFAULT_ACCURACY;
mLocationManager.delegate = mLocationDelegate;
return NS_OK;
}
~CoreLocationObjects() {
if (mLocationManager) {
[mLocationManager release];
}
if (mLocationDelegate) {
[mLocationDelegate release];
}
}
LocationDelegate* mLocationDelegate;
CLLocationManager* mLocationManager;
};
NS_IMPL_ISUPPORTS(CoreLocationLocationProvider, nsIGeolocationProvider)
CoreLocationLocationProvider::CoreLocationLocationProvider()
: mCLObjects(nullptr)
{
}
NS_IMETHODIMP
CoreLocationLocationProvider::Startup()
{
if (!mCLObjects) {
nsAutoPtr<CoreLocationObjects> clObjs(new CoreLocationObjects());
nsresult rv = clObjs->Init(this);
NS_ENSURE_SUCCESS(rv, rv);
mCLObjects = clObjs.forget();
}
[mCLObjects->mLocationManager startUpdatingLocation];
return NS_OK;
}
NS_IMETHODIMP
CoreLocationLocationProvider::Watch(nsIGeolocationUpdate* aCallback)
{
if (mCallback) {
return NS_OK;
}
mCallback = aCallback;
return NS_OK;
}
NS_IMETHODIMP
CoreLocationLocationProvider::Shutdown()
{
NS_ENSURE_STATE(mCLObjects);
[mCLObjects->mLocationManager stopUpdatingLocation];
delete mCLObjects;
mCLObjects = nullptr;
return NS_OK;
}
NS_IMETHODIMP
CoreLocationLocationProvider::SetHighAccuracy(bool aEnable)
{
NS_ENSURE_STATE(mCLObjects);
mCLObjects->mLocationManager.desiredAccuracy =
(aEnable ? kHIGH_ACCURACY : kDEFAULT_ACCURACY);
return NS_OK;
}
void
CoreLocationLocationProvider::Update(nsIDOMGeoPosition* aSomewhere)
{
if (aSomewhere && mCallback) {
mCallback->Update(aSomewhere);
}
}
void
CoreLocationLocationProvider::NotifyError(uint16_t aErrorCode)
{
mCallback->NotifyError(aErrorCode);
}