| // Copyright 2017 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 CHROMEOS_COMPONENTS_TETHER_TETHER_HOST_FETCHER_IMPL_H_ |
| #define CHROMEOS_COMPONENTS_TETHER_TETHER_HOST_FETCHER_IMPL_H_ |
| |
| #include <memory> |
| |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "chromeos/components/multidevice/remote_device_ref.h" |
| #include "chromeos/components/tether/tether_host_fetcher.h" |
| #include "chromeos/services/device_sync/public/cpp/device_sync_client.h" |
| #include "chromeos/services/multidevice_setup/public/cpp/multidevice_setup_client.h" |
| #include "chromeos/services/multidevice_setup/public/mojom/multidevice_setup.mojom.h" |
| |
| namespace chromeos { |
| |
| namespace tether { |
| |
| // Concrete TetherHostFetcher implementation. Despite the asynchronous function |
| // prototypes, callbacks are invoked synchronously. |
| // |
| // Note: TetherHostFetcherImpl, and the Tether feature as a whole, is currently |
| // in the middle of a migration from using DeviceSyncClient and eventually to |
| // MultiDeviceSetupClient. Its constructor accepts both objects, but either may |
| // be null. Once Tether has been fully migrated, DeviceSyncClient will be ripped |
| // out of this class. See https://crbug.com/848956. |
| class TetherHostFetcherImpl |
| : public TetherHostFetcher, |
| public device_sync::DeviceSyncClient::Observer, |
| public multidevice_setup::MultiDeviceSetupClient::Observer { |
| public: |
| class Factory { |
| public: |
| static std::unique_ptr<TetherHostFetcher> Create( |
| device_sync::DeviceSyncClient* device_sync_client, |
| chromeos::multidevice_setup::MultiDeviceSetupClient* |
| multidevice_setup_client); |
| |
| static void SetFactoryForTesting(Factory* factory); |
| |
| protected: |
| virtual std::unique_ptr<TetherHostFetcher> CreateInstance( |
| device_sync::DeviceSyncClient* device_sync_client, |
| chromeos::multidevice_setup::MultiDeviceSetupClient* |
| multidevice_setup_client) = 0; |
| |
| private: |
| static Factory* factory_instance_; |
| }; |
| |
| ~TetherHostFetcherImpl() override; |
| |
| // TetherHostFetcher: |
| bool HasSyncedTetherHosts() override; |
| void FetchAllTetherHosts(const TetherHostListCallback& callback) override; |
| void FetchTetherHost(const std::string& device_id, |
| const TetherHostCallback& callback) override; |
| |
| // device_sync::DeviceSyncClient::Observer: |
| void OnNewDevicesSynced() override; |
| void OnReady() override; |
| |
| // multidevice_setup::MultiDeviceSetupClient::Observer: |
| void OnHostStatusChanged( |
| const multidevice_setup::MultiDeviceSetupClient::HostStatusWithDevice& |
| host_status_with_device) override; |
| void OnFeatureStatesChanged( |
| const multidevice_setup::MultiDeviceSetupClient::FeatureStatesMap& |
| feature_states_map) override; |
| |
| protected: |
| TetherHostFetcherImpl(device_sync::DeviceSyncClient* device_sync_client, |
| chromeos::multidevice_setup::MultiDeviceSetupClient* |
| multidevice_setup_client_); |
| |
| private: |
| void CacheCurrentTetherHosts(); |
| multidevice::RemoteDeviceRefList GenerateHostDeviceList(); |
| |
| device_sync::DeviceSyncClient* device_sync_client_; |
| chromeos::multidevice_setup::MultiDeviceSetupClient* |
| multidevice_setup_client_; |
| |
| multidevice::RemoteDeviceRefList current_remote_device_list_; |
| base::WeakPtrFactory<TetherHostFetcherImpl> weak_ptr_factory_{this}; |
| |
| DISALLOW_COPY_AND_ASSIGN(TetherHostFetcherImpl); |
| }; |
| |
| } // namespace tether |
| |
| } // namespace chromeos |
| |
| #endif // CHROMEOS_COMPONENTS_TETHER_TETHER_HOST_FETCHER_IMPL_H_ |