[CrOS Tether] Disconnect cleanly from active Tether networks when the user logs out or the Tether c…

chromeos/components/tether/tether_disconnector.h

 // 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_DISCONNECTOR_H_
 #define CHROMEOS_COMPONENTS_TETHER_TETHER_DISCONNECTOR_H_
 
-#include <memory>
 #include <string>
-#include <unordered_map>
 
 #include "base/callback_forward.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "chromeos/components/tether/disconnect_tethering_operation.h"
 #include "chromeos/network/network_handler_callbacks.h"
 
-namespace base {
-class DictionaryValue;
-}
-
 namespace chromeos {
 
-class NetworkConnectionHandler;
-class NetworkStateHandler;
-
 namespace tether {
 
-class ActiveHost;
-class BleConnectionManager;
-class DeviceIdTetherNetworkGuidMap;
-class NetworkConfigurationRemover;
-class TetherConnector;
-class TetherHostFetcher;
+// Disconnects from an active Tether connection.
+class TetherDisconnector {
+ public:
+  TetherDisconnector() {}
+  virtual ~TetherDisconnector() {}
 
-class TetherDisconnector : public DisconnectTetheringOperation::Observer {
- public:
-  TetherDisconnector(
-      NetworkConnectionHandler* network_connection_handler,
-      NetworkStateHandler* network_state_handler,
-      ActiveHost* active_host,
-      BleConnectionManager* ble_connection_manager,
-      NetworkConfigurationRemover* network_configuration_remover,
-      TetherConnector* tether_connector,
-      DeviceIdTetherNetworkGuidMap* device_id_tether_network_guid_map,
-      TetherHostFetcher* tether_host_fetcher);
-  virtual ~TetherDisconnector();
-
+  // Disconnects from the network with GUID |tether_network_guid|. This GUID
+  // must correspond to an active (i.e., connecting/connected) Tether network.
+  // If disconnection fails, |error_callback| is invoked with a
+  // NetworkConnectionHandler error value.
   virtual void DisconnectFromNetwork(
       const std::string& tether_network_guid,
       const base::Closure& success_callback,
-      const network_handler::StringResultCallback& error_callback);
-
-  // DisconnectTetheringOperation::Observer:
-  void OnOperationFinished(const std::string& device_id, bool success) override;
+      const network_handler::StringResultCallback& error_callback) = 0;
 
  private:
-  friend class TetherDisconnectorTest;
-
-  void DisconnectActiveWifiConnection(
-      const std::string& tether_network_guid,
-      const std::string& wifi_network_guid,
-      const base::Closure& success_callback,
-      const network_handler::StringResultCallback& error_callback);
-  void OnSuccessfulWifiDisconnect(
-      const std::string& wifi_network_guid,
-      const base::Closure& success_callback,
-      const network_handler::StringResultCallback& error_callback);
-  void OnFailedWifiDisconnect(
-      const std::string& wifi_network_guid,
-      const base::Closure& success_callback,
-      const network_handler::StringResultCallback& error_callback,
-      const std::string& error_name,
-      std::unique_ptr<base::DictionaryValue> error_data);
-  void CleanUpAfterWifiDisconnection(
-      bool success,
-      const std::string& wifi_network_guid,
-      const base::Closure& success_callback,
-      const network_handler::StringResultCallback& error_callback);
-  void OnTetherHostFetched(
-      const std::string& device_id,
-      std::unique_ptr<cryptauth::RemoteDevice> tether_host);
-
-  NetworkConnectionHandler* network_connection_handler_;
-  NetworkStateHandler* network_state_handler_;
-  ActiveHost* active_host_;
-  BleConnectionManager* ble_connection_manager_;
-  NetworkConfigurationRemover* network_configuration_remover_;
-  TetherConnector* tether_connector_;
-  DeviceIdTetherNetworkGuidMap* device_id_tether_network_guid_map_;
-  TetherHostFetcher* tether_host_fetcher_;
-
-  std::unique_ptr<DisconnectTetheringOperation> disconnect_tethering_operation_;
-  base::WeakPtrFactory<TetherDisconnector> weak_ptr_factory_;
-
   DISALLOW_COPY_AND_ASSIGN(TetherDisconnector);
 };
 
 }  // namespace tether
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_COMPONENTS_TETHER_TETHER_DISCONNECTOR_H_