IME refactoring: ChromeOS introduce input methods State.

chrome/browser/chromeos/login/session/user_session_manager.h

 // Copyright 2014 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_SESSION_USER_SESSION_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SESSION_USER_SESSION_MANAGER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/singleton.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "chrome/browser/chromeos/base/locale_util.h"
 #include "chrome/browser/chromeos/login/signin/oauth2_login_manager.h"
 #include "chromeos/dbus/session_manager_client.h"
+#include "chromeos/ime/input_method_manager.h"
 #include "chromeos/login/auth/authenticator.h"
 #include "chromeos/login/auth/user_context.h"
 #include "components/user_manager/user.h"
+#include "components/user_manager/user_manager.h"
 #include "net/base/network_change_notifier.h"
 
 class PrefRegistrySimple;
 class PrefService;
 class Profile;
 
+namespace user_manager {
+
+class User;
+
+}  // namespace user_manager
+
 namespace chromeos {
 
 class UserSessionManagerDelegate {
  public:
   // Called after profile is loaded and prepared for the session.
   virtual void OnProfilePrepared(Profile* profile) = 0;
 
 #if defined(ENABLE_RLZ)
   // Called after post-profile RLZ initialization.
   virtual void OnRlzInitialized();
@@ skipping 15 matching lines @@
 // load and initialize Profile (including custom Profile preferences),
 // mark user as logged in and notify observers,
 // initialize OAuth2 authentication session,
 // initialize and launch user session based on the user type.
 // Also supports restoring active user sessions after browser crash:
 // load profile, restore OAuth authentication session etc.
 class UserSessionManager
     : public OAuth2LoginManager::Observer,
       public net::NetworkChangeNotifier::ConnectionTypeObserver,
       public base::SupportsWeakPtr<UserSessionManager>,
-      public UserSessionManagerDelegate {
+      public UserSessionManagerDelegate,
+      public user_manager::UserManager::UserSessionStateObserver {
  public:
   // Returns UserSessionManager instance.
   static UserSessionManager* GetInstance();
 
   // Called when user is logged in to override base::DIR_HOME path.
   static void OverrideHomedir();
 
   // Registers session related preferences.
   static void RegisterPrefs(PrefRegistrySimple* registry);
 
@@ skipping 33 matching lines @@
   // TODO(nkostylev): Drop these methods once LoginUtilsImpl::AttemptRestart()
   // is migrated.
   OAuth2LoginManager::SessionRestoreStrategy GetSigninSessionRestoreStrategy();
   bool exit_after_session_restore() { return exit_after_session_restore_; }
   void set_exit_after_session_restore(bool value) {
     exit_after_session_restore_ = value;
   }
 
   // Invoked when the user is logging in for the first time, or is logging in to
   // an ephemeral session type, such as guest or a public session.
-  static void SetFirstLoginPrefs(
-      PrefService* prefs,
-      const std::string& public_session_locale,
-      const std::string& public_session_input_method);
+  void SetFirstLoginPrefs(Profile* profile,
+                          const std::string& public_session_locale,
+                          const std::string& public_session_input_method);
 
   // Gets/sets Chrome OAuth client id and secret for kiosk app mode. The default
   // values can be overridden with kiosk auth file.
   bool GetAppModeChromeClientOAuthInfo(
       std::string* chrome_client_id,
       std::string* chrome_client_secret);
   void SetAppModeChromeClientOAuthInfo(
       const std::string& chrome_client_id,
       const std::string& chrome_client_secret);
 
   // Changes browser locale (selects best suitable locale from different
   // user settings). Returns true if callback will be called.
   // Returns true if callback will be called.
   bool RespectLocalePreference(
       Profile* profile,
       const user_manager::User* user,
       scoped_ptr<locale_util::SwitchLanguageCallback> callback) const;
 
-  void AddSessionStateObserver(UserSessionStateObserver* observer);
-  void RemoveSessionStateObserver(UserSessionStateObserver* observer);
+  void AddSessionStateObserver(chromeos::UserSessionStateObserver* observer);
+  void RemoveSessionStateObserver(chromeos::UserSessionStateObserver* observer);
+
+  virtual void ActiveUserChanged(
+      const user_manager::User* active_user) OVERRIDE;
+
+  // Returns default IME state for user session.
+  scoped_refptr<input_method::InputMethodManager::State> GetDefaultIMEState(
+      Profile* profile);
 
  private:
   friend struct DefaultSingletonTraits<UserSessionManager>;
 
   typedef std::set<std::string> SigninSessionRestoreStateSet;
 
   UserSessionManager();
   virtual ~UserSessionManager();
 
   // OAuth2LoginManager::Observer overrides:
@@ skipping 84 matching lines @@
   // Active user session restoration related members.
 
   // True is user sessions has been restored after crash.
   // On a normal boot then login into user sessions this will be false.
   bool user_sessions_restored_;
 
   // User sessions that have to be restored after browser crash.
   // [user_id] > [user_id_hash]
   SessionManagerClient::ActiveSessionsMap pending_user_sessions_;
 
-  ObserverList<UserSessionStateObserver> session_state_observer_list_;
+  ObserverList<chromeos::UserSessionStateObserver> session_state_observer_list_;
 
   // OAuth2 session related members.
 
   // True if we should restart chrome right after session restore.
   bool exit_after_session_restore_;
 
   // Sesion restore strategy.
   OAuth2LoginManager::SessionRestoreStrategy session_restore_strategy_;
 
   // OAuth2 refresh token for session restore.
   std::string oauth2_refresh_token_;
 
   // Set of user_id for those users that we should restore authentication
   // session when notified about online state change.
   SigninSessionRestoreStateSet pending_signin_restore_sessions_;
 
   // Kiosk mode related members.
   // Chrome oauth client id and secret - override values for kiosk mode.
   std::string chrome_client_id_;
   std::string chrome_client_secret_;
 
+  // Per-user-session Input Methods states.
+  std::map<Profile*, scoped_refptr<input_method::InputMethodManager::State> >
+      default_ime_states_;
+
   DISALLOW_COPY_AND_ASSIGN(UserSessionManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SESSION_USER_SESSION_MANAGER_H_