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- // Copyright (c) 2012 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #ifndef SERVICES_DEVICE_GEOLOCATION_NETWORK_LOCATION_PROVIDER_H_
- #define SERVICES_DEVICE_GEOLOCATION_NETWORK_LOCATION_PROVIDER_H_
- #include <stddef.h>
- #include <map>
- #include <memory>
- #include <string>
- #include "base/memory/raw_ptr.h"
- #include "base/memory/ref_counted.h"
- #include "base/memory/weak_ptr.h"
- #include "base/scoped_observation.h"
- #include "base/threading/thread.h"
- #include "base/threading/thread_checker.h"
- #include "base/time/time.h"
- #include "build/build_config.h"
- #include "services/device/geolocation/network_location_request.h"
- #include "services/device/geolocation/wifi_data_provider_handle.h"
- #include "services/device/public/cpp/geolocation/geolocation_manager.h"
- #include "services/device/public/cpp/geolocation/location_provider.h"
- #include "services/device/public/mojom/geoposition.mojom.h"
- namespace device {
- class PositionCache;
- class NetworkLocationProvider : public LocationProvider,
- public GeolocationManager::PermissionObserver {
- public:
- NetworkLocationProvider(
- scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory,
- GeolocationManager* geolocation_manager,
- const scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
- const std::string& api_key,
- PositionCache* position_cache);
- NetworkLocationProvider(const NetworkLocationProvider&) = delete;
- NetworkLocationProvider& operator=(const NetworkLocationProvider&) = delete;
- ~NetworkLocationProvider() override;
- // LocationProvider implementation
- void SetUpdateCallback(const LocationProviderUpdateCallback& cb) override;
- void StartProvider(bool high_accuracy) override;
- void StopProvider() override;
- const mojom::Geoposition& GetPosition() override;
- void OnPermissionGranted() override;
- // GeolocationPermissionObserver implementation.
- void OnSystemPermissionUpdated(
- LocationSystemPermissionStatus new_status) override;
- private:
- // Tries to update |position_| request from cache or network.
- void RequestPosition();
- // Gets called when new wifi data is available, either via explicit request to
- // or callback from |wifi_data_provider_handle_|.
- void OnWifiDataUpdate();
- bool IsStarted() const;
- void OnLocationResponse(const mojom::Geoposition& position,
- bool server_error,
- const WifiData& wifi_data);
- // The wifi data provider, acquired via global factories. Valid between
- // StartProvider() and StopProvider(), and checked via IsStarted().
- std::unique_ptr<WifiDataProviderHandle> wifi_data_provider_handle_;
- WifiDataProviderHandle::WifiDataUpdateCallback wifi_data_update_callback_;
- #if BUILDFLAG(IS_MAC)
- // Used to keep track of macOS System Permission changes. Also, ensures
- // lifetime of PermissionObserverList as the BrowserProcess may destroy its
- // reference on the UI Thread before we destroy this provider.
- scoped_refptr<GeolocationManager::PermissionObserverList>
- permission_observers_;
- raw_ptr<GeolocationManager> geolocation_manager_;
- #endif
- // The wifi data and a flag to indicate if the data set is complete.
- WifiData wifi_data_;
- bool is_wifi_data_complete_;
- // The timestamp for the latest wifi data update.
- base::Time wifi_timestamp_;
- const raw_ptr<PositionCache> position_cache_;
- LocationProvider::LocationProviderUpdateCallback
- location_provider_update_callback_;
- // Whether permission has been granted for the provider to operate.
- bool is_permission_granted_;
- bool is_new_data_available_;
- // The network location request object.
- const std::unique_ptr<NetworkLocationRequest> request_;
- base::ThreadChecker thread_checker_;
- bool is_system_permission_granted_ = false;
- bool is_awaiting_initial_permission_status_ = true;
- base::WeakPtrFactory<NetworkLocationProvider> weak_factory_{this};
- };
- } // namespace device
- #endif // SERVICES_DEVICE_GEOLOCATION_NETWORK_LOCATION_PROVIDER_H_
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