cros: Fold NetworkModel into NetworkScreen

chrome/browser/chromeos/login/screens/network_screen.h

 // 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 CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_NETWORK_SCREEN_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_NETWORK_SCREEN_H_
 
 #include <memory>
 
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/strings/string16.h"
 #include "base/timer/timer.h"
-#include "chrome/browser/chromeos/login/screens/network_model.h"
+#include "chrome/browser/chromeos/login/screens/base_screen.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chromeos/network/network_state_handler_observer.h"
 #include "ui/base/ime/chromeos/input_method_manager.h"
 
 namespace chromeos {
 
 class InputEventsBlocker;
 class NetworkView;
 class ScreenManager;
 
 namespace locale_util {
 struct LanguageSwitchResult;
 }
 
 namespace login {
 class NetworkStateHelper;
 }
 
-class NetworkScreen : public NetworkModel,
+class NetworkScreen : public BaseScreen,
                       public NetworkStateHandlerObserver,
                       public input_method::InputMethodManager::Observer {
  public:
   class Delegate {
    public:
     virtual ~Delegate() {}
 
     // Called when enable debugging screen is requested.
     virtual void OnEnableDebuggingScreenRequested() = 0;
   };
 
   class Observer {
    public:
     virtual ~Observer() {}
 
     // Called when language list is reloaded.
     virtual void OnLanguageListReloaded() = 0;
   };
 
   NetworkScreen(BaseScreenDelegate* base_screen_delegate,
                 Delegate* delegate,
                 NetworkView* view);
   ~NetworkScreen() override;
 
   static NetworkScreen* Get(ScreenManager* manager);
 
-  // NetworkModel implementation:
-  void Show() override;
-  void Hide() override;
-  void OnViewDestroyed(NetworkView* view) override;
-  void OnUserAction(const std::string& action_id) override;
-  void OnContextKeyUpdated(const ::login::ScreenContext::KeyType& key) override;
-  std::string GetLanguageListLocale() const override;
-  const base::ListValue* GetLanguageList() const override;
-  void UpdateLanguageList() override;
+  // Called when |view| has been destroyed. If this instance is destroyed before
+  // the |view| it should call view->Unbind().
+  void OnViewDestroyed(NetworkView* view);
 
-  // NetworkStateHandlerObserver implementation:
-  void NetworkConnectionStateChanged(const NetworkState* network) override;
-  void DefaultNetworkChanged(const NetworkState* network) override;
+  const std::string& language_list_locale() const {
+    return language_list_locale_;
+  }
+  const base::ListValue* language_list() const { return language_list_.get(); }
 
-  // InputMethodManager::Observer implementation:
-  void InputMethodChanged(input_method::InputMethodManager* manager,
-                          Profile* profile,
-                          bool show_message) override;
+  void UpdateLanguageList();
 
   // Set locale and input method. If |locale| is empty or doesn't change, set
   // the |input_method| directly. If |input_method| is empty or ineligible, we
   // don't change the current |input_method|.
   void SetApplicationLocaleAndInputMethod(const std::string& locale,
                                           const std::string& input_method);
   std::string GetApplicationLocale();
   std::string GetInputMethod() const;
 
   void SetTimezone(const std::string& timezone_id);
   std::string GetTimezone() const;
 
   // Currently We can only get unsecured Wifi network configuration from shark
   // that can be applied to remora. Returns the network ONC configuration.
   void GetConnectedWifiNetwork(std::string* out_onc_spec);
   void CreateAndConnectNetworkFromOnc(const std::string& onc_spec,
                                       const base::Closure& success_callback,
                                       const base::Closure& failed_callback);
 
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
  private:
   friend class NetworkScreenTest;
   FRIEND_TEST_ALL_PREFIXES(NetworkScreenTest, Timeout);
   FRIEND_TEST_ALL_PREFIXES(NetworkScreenTest, CanConnect);
   FRIEND_TEST_ALL_PREFIXES(HandsOffNetworkScreenTest, RequiresNoInput);
 
+  // BaseScreen implementation:
+  void Show() override;
+  void Hide() override;
+  void OnUserAction(const std::string& action_id) override;
+  void OnContextKeyUpdated(const ::login::ScreenContext::KeyType& key) override;
+
+  // NetworkStateHandlerObserver implementation:
+  void NetworkConnectionStateChanged(const NetworkState* network) override;
+  void DefaultNetworkChanged(const NetworkState* network) override;
+
+  // InputMethodManager::Observer implementation:
+  void InputMethodChanged(input_method::InputMethodManager* manager,
+                          Profile* profile,
+                          bool show_message) override;
+
   void SetApplicationLocale(const std::string& locale);
   void SetInputMethod(const std::string& input_method);
 
   // Subscribe to timezone changes.
   void InitializeTimezoneObserver();
 
   // Subscribes NetworkScreen to the network change notification,
   // forces refresh of current network state.
   void Refresh();
 
@@ skipping 39 matching lines @@
   // Callback for chromeos::ResolveUILanguageList() (from l10n_util).
   void OnLanguageListResolved(
       std::unique_ptr<base::ListValue> new_language_list,
       const std::string& new_language_list_locale,
       const std::string& new_selected_language);
 
   // Callback when the system timezone settings is changed.
   void OnSystemTimezoneChanged();
 
   // True if subscribed to network change notification.
-  bool is_network_subscribed_;
+  bool is_network_subscribed_ = false;
 
   // ID of the the network that we are waiting for.
   base::string16 network_id_;
 
   // True if user pressed continue button so we should proceed with OOBE
   // as soon as we are connected.
-  bool continue_pressed_;
+  bool continue_pressed_ = false;
 
   // Timer for connection timeout.
   base::OneShotTimer connection_timer_;
 
   std::unique_ptr<CrosSettings::ObserverSubscription> timezone_subscription_;
 
-  NetworkView* view_;
-  Delegate* delegate_;
+  NetworkView* view_ = nullptr;
+  Delegate* delegate_ = nullptr;
   std::unique_ptr<login::NetworkStateHelper> network_state_helper_;
 
   std::string input_method_;
   std::string timezone_;
 
   // Creation of language list happens on Blocking Pool, so we cache
   // resolved data.
   std::string language_list_locale_;
   std::unique_ptr<base::ListValue> language_list_;
 
   // The exact language code selected by user in the menu.
   std::string selected_language_code_;
 
   base::ObserverList<Observer> observers_;
 
   base::WeakPtrFactory<NetworkScreen> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkScreen);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_NETWORK_SCREEN_H_