[cros login] Split login related classes into subfolders.

chrome/browser/chromeos/login/user_image_manager.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_USER_IMAGE_MANAGER_H_
-#define CHROME_BROWSER_CHROMEOS_LOGIN_USER_IMAGE_MANAGER_H_
-
-#include <string>
-
-#include "chrome/browser/chromeos/login/user.h"
-
-class PrefRegistrySimple;
-
-namespace base {
-class FilePath;
-}
-
-namespace gfx {
-class ImageSkia;
-}
-
-namespace chromeos {
-
-class UserImage;
-class UserImageSyncObserver;
-
-// Base class that provides a mechanism for updating user images.
-// There is an instance of this class for each user in the system.
-class UserImageManager {
- public:
-  // Registers user image manager preferences.
-  static void RegisterPrefs(PrefRegistrySimple* registry);
-
-  explicit UserImageManager(const std::string& user_id);
-  virtual ~UserImageManager();
-
-  // Loads user image data from Local State.
-  virtual void LoadUserImage() = 0;
-
-  // Indicates that a user has just logged in.
-  virtual void UserLoggedIn(bool user_is_new, bool user_is_local) = 0;
-
-  // Sets user image to the default image with index |image_index|, sends
-  // LOGIN_USER_IMAGE_CHANGED notification and updates Local State.
-  virtual void SaveUserDefaultImageIndex(int image_index) = 0;
-
-  // Saves image to file, sends LOGIN_USER_IMAGE_CHANGED notification and
-  // updates Local State.
-  virtual void SaveUserImage(const UserImage& user_image) = 0;
-
-  // Tries to load user image from disk; if successful, sets it for the user,
-  // sends LOGIN_USER_IMAGE_CHANGED notification and updates Local State.
-  virtual void SaveUserImageFromFile(const base::FilePath& path) = 0;
-
-  // Sets profile image as user image for the user, sends
-  // LOGIN_USER_IMAGE_CHANGED notification and updates Local State. If
-  // the user is not logged-in or the last |DownloadProfileImage| call
-  // has failed, a default grey avatar will be used until the user logs
-  // in and profile image is downloaded successfully.
-  virtual void SaveUserImageFromProfileImage() = 0;
-
-  // Deletes user image and the corresponding image file.
-  virtual void DeleteUserImage() = 0;
-
-  // Starts downloading the profile image for the user.  If user's image
-  // index is |kProfileImageIndex|, newly downloaded image is immediately
-  // set as user's current picture.  |reason| is an arbitrary string
-  // (used to report UMA histograms with download times).
-  virtual void DownloadProfileImage(const std::string& reason) = 0;
-
-  // Returns the result of the last successful profile image download, if any.
-  // Otherwise, returns an empty bitmap.
-  virtual const gfx::ImageSkia& DownloadedProfileImage() const = 0;
-
-  // Returns sync observer attached to the user. Returns NULL if current
-  // user can't sync images or user is not logged in.
-  virtual UserImageSyncObserver* GetSyncObserver() const = 0;
-
-  // Unregisters preference observers before browser process shutdown.
-  // Also cancels any profile image download in progress.
-  virtual void Shutdown() = 0;
-
-  // Invoked when an external data reference is set for the user.
-  virtual void OnExternalDataSet(const std::string& policy) = 0;
-
-  // Invoked when the external data reference is cleared for the user.
-  virtual void OnExternalDataCleared(const std::string& policy) = 0;
-
-  // Invoked when the external data referenced for the user has been
-  // fetched.  Failed fetches are retried and the method is called only
-  // when a fetch eventually succeeds. If a fetch fails permanently
-  // (e.g. because the external data reference specifies an invalid URL),
-  // the method is not called at all.
-  virtual void OnExternalDataFetched(const std::string& policy,
-                                     scoped_ptr<std::string> data) = 0;
-
- protected:
-  const std::string& user_id() const { return user_id_; }
-
-  // ID of user which images are managed by current instance of
-  // UserImageManager.
-  const std::string user_id_;
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_IMAGE_MANAGER_H_