[cros login] Split login related classes into subfolders.

chrome/browser/chromeos/login/user_image_sync_observer.h

-// Copyright 2013 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_USER_IMAGE_SYNC_OBSERVER_H_
-#define CHROME_BROWSER_CHROMEOS_LOGIN_USER_IMAGE_SYNC_OBSERVER_H_
-
-#include <string>
-
-#include "base/memory/scoped_ptr.h"
-#include "base/observer_list.h"
-#include "chrome/browser/chromeos/login/user_manager.h"
-#include "chrome/browser/prefs/pref_service_syncable_observer.h"
-#include "content/public/browser/notification_observer.h"
-
-class PrefChangeRegistrar;
-class PrefServiceSyncable;
-class Profile;
-namespace chromeos {
-class User;
-}
-namespace content {
-class NotificationRegistrar;
-}
-namespace user_prefs {
-class PrefRegistrySyncable;
-}
-
-namespace chromeos {
-
-// This class is responsible for keeping local user image synced with
-// image saved in syncable preference.
-class UserImageSyncObserver: public PrefServiceSyncableObserver,
-                             public content::NotificationObserver {
- public:
-  class Observer {
-   public:
-    // Called right after image info synced (i.e. |is_synced| became |true|).
-    // |local_image_updated| indicates if we desided to update local image in
-    // result of sync.
-    virtual void OnInitialSync(bool local_image_updated) = 0;
-    virtual ~Observer();
-  };
-
- public:
-  explicit UserImageSyncObserver(const User* user);
-  virtual ~UserImageSyncObserver();
-
-  // Register syncable preference for profile.
-  static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
-
-  // Returns |true| if sync was initialized and prefs have actual state.
-  bool is_synced() const { return is_synced_; }
-
-  // Adds |observer| into observers list.
-  void AddObserver(Observer* observer);
-  // Removes |observer| from observers list.
-  void RemoveObserver(Observer* observer);
-
- private:
-  // PrefServiceSyncableObserver implementation.
-  virtual void OnIsSyncingChanged() OVERRIDE;
-
-  // content::NotificationObserver implementation.
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
-
-  // Called after user profile was loaded.
-  void OnProfileGained(Profile* profile);
-
-  // Called when sync servise started it's work and we are able to sync needed
-  // preferences.
-  void OnInitialSync();
-
-  // Called when preference |pref_name| was changed.j
-  void OnPreferenceChanged(const std::string& pref_name);
-
-  // Saves local image preferences to sync.
-  void UpdateSyncedImageFromLocal();
-
-  // Saves sync preferences to local state and updates user image.
-  void UpdateLocalImageFromSynced();
-
-  // Gets synced image index. Returns false if user has no needed preferences.
-  bool GetSyncedImageIndex(int* result);
-
-  // If it is allowed to change user image now.
-  bool CanUpdateLocalImageNow();
-
-  const User* user_;
-  scoped_ptr<PrefChangeRegistrar> pref_change_registrar_;
-  scoped_ptr<content::NotificationRegistrar> notification_registrar_;
-  PrefServiceSyncable* prefs_;
-  bool is_synced_;
-  // Indicates if local user image changed during initialization.
-  bool local_image_changed_;
-  ObserverList<Observer> observer_list_;
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_IMAGE_SYNC_OBSERVER_H_
-