[cros login] Split login related classes into subfolders.

chrome/browser/chromeos/login/screen_locker.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_SCREEN_LOCKER_H_
-#define CHROME_BROWSER_CHROMEOS_LOGIN_SCREEN_LOCKER_H_
-
-#include <string>
-
-#include "base/callback_forward.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "base/sequenced_task_runner_helpers.h"
-#include "base/time/time.h"
-#include "chrome/browser/chromeos/login/help_app_launcher.h"
-#include "chrome/browser/chromeos/login/login_display.h"
-#include "chrome/browser/chromeos/login/login_status_consumer.h"
-#include "chrome/browser/chromeos/login/screen_locker_delegate.h"
-#include "chrome/browser/chromeos/login/user.h"
-#include "chrome/browser/signin/screenlock_bridge.h"
-#include "ui/base/accelerators/accelerator.h"
-
-namespace content {
-class WebUI;
-}
-
-namespace gfx {
-class Image;
-}
-
-namespace chromeos {
-
-class Authenticator;
-class ExtendedAuthenticator;
-class LoginFailure;
-class ScreenlockIconProvider;
-
-namespace test {
-class ScreenLockerTester;
-class ScreenLockerViewsTester;
-class WebUIScreenLockerTester;
-}  // namespace test
-
-// ScreenLocker creates a ScreenLockerDelegate which will display the lock UI.
-// As well, it takes care of authenticating the user and managing a global
-// instance of itself which will be deleted when the system is unlocked.
-class ScreenLocker : public LoginStatusConsumer,
-                     public ScreenlockBridge::LockHandler {
- public:
-  explicit ScreenLocker(const UserList& users);
-
-  // Returns the default instance if it has been created.
-  static ScreenLocker* default_screen_locker() {
-    return screen_locker_;
-  }
-
-  bool locked() const { return locked_; }
-
-  // Initialize and show the screen locker.
-  void Init();
-
-  // LoginStatusConsumer:
-  virtual void OnLoginFailure(const chromeos::LoginFailure& error) OVERRIDE;
-  virtual void OnLoginSuccess(const UserContext& user_context) OVERRIDE;
-
-  // Does actual unlocking once authentication is successful and all blocking
-  // animations are done.
-  void UnlockOnLoginSuccess();
-
-  // Authenticates the user with given |user_context|.
-  void Authenticate(const UserContext& user_context);
-
-  // Close message bubble to clear error messages.
-  void ClearErrors();
-
-  // Exit the chrome, which will sign out the current session.
-  void Signout();
-
-  // ScreenlockBridge::LockHandler:
-  virtual void ShowBannerMessage(const std::string& message) OVERRIDE;
-  virtual void ShowUserPodButton(const std::string& username,
-                                 const gfx::Image& icon,
-                                 const base::Closure& click_callback) OVERRIDE;
-  virtual void HideUserPodButton(const std::string& username) OVERRIDE;
-  virtual void EnableInput() OVERRIDE;
-  virtual void SetAuthType(const std::string& username,
-                           ScreenlockBridge::LockHandler::AuthType auth_type,
-                           const std::string& initial_value) OVERRIDE;
-  virtual ScreenlockBridge::LockHandler::AuthType GetAuthType(
-      const std::string& username) const OVERRIDE;
-  virtual void Unlock(const std::string& user_email) OVERRIDE;
-
-  // Disables all UI needed and shows error bubble with |message|.
-  // If |sign_out_only| is true then all other input except "Sign Out"
-  // button is blocked.
-  void ShowErrorMessage(int error_msg_id,
-                        HelpAppLauncher::HelpTopic help_topic_id,
-                        bool sign_out_only);
-
-  // Returns the screen locker's delegate.
-  ScreenLockerDelegate* delegate() const { return delegate_.get(); }
-
-  // Returns the users to authenticate.
-  const UserList& users() const { return users_; }
-
-  // Allow a LoginStatusConsumer to listen for
-  // the same login events that ScreenLocker does.
-  void SetLoginStatusConsumer(chromeos::LoginStatusConsumer* consumer);
-
-  // Returns WebUI associated with screen locker implementation or NULL if
-  // there isn't one.
-  content::WebUI* GetAssociatedWebUI();
-
-  // Initialize or uninitialize the ScreenLocker class. It listens to
-  // NOTIFICATION_SESSION_STARTED so that the screen locker accepts lock
-  // requests only after a user has logged in.
-  static void InitClass();
-  static void ShutDownClass();
-
-  // Handles a request from the session manager to lock the screen.
-  static void HandleLockScreenRequest();
-
-  // Show the screen locker.
-  static void Show();
-
-  // Hide the screen locker.
-  static void Hide();
-
-  // Returns the tester
-  static test::ScreenLockerTester* GetTester();
-
- private:
-  friend class base::DeleteHelper<ScreenLocker>;
-  friend class test::ScreenLockerTester;
-  friend class test::ScreenLockerViewsTester;
-  friend class test::WebUIScreenLockerTester;
-  friend class ScreenLockerDelegate;
-
-  struct AuthenticationParametersCapture {
-    UserContext user_context;
-  };
-
-  virtual ~ScreenLocker();
-
-  // Sets the authenticator.
-  void SetAuthenticator(Authenticator* authenticator);
-
-  // Called when the screen lock is ready.
-  void ScreenLockReady();
-
-  // Called when screen locker is safe to delete.
-  static void ScheduleDeletion();
-
-  // Returns true if |username| is found among logged in users.
-  bool IsUserLoggedIn(const std::string& username);
-
-  // Looks up user in unlock user list.
-  const User* FindUnlockUser(const std::string& user_id);
-
-  // ScreenLockerDelegate instance in use.
-  scoped_ptr<ScreenLockerDelegate> delegate_;
-
-  // Users that can unlock the device.
-  UserList users_;
-
-  // Used to authenticate the user to unlock.
-  scoped_refptr<Authenticator> authenticator_;
-
-  // Used to authenticate the user to unlock supervised users.
-  scoped_refptr<ExtendedAuthenticator> extended_authenticator_;
-
-  // True if the screen is locked, or false otherwise.  This changes
-  // from false to true, but will never change from true to
-  // false. Instead, ScreenLocker object gets deleted when unlocked.
-  bool locked_;
-
-  // Reference to the single instance of the screen locker object.
-  // This is used to make sure there is only one screen locker instance.
-  static ScreenLocker* screen_locker_;
-
-  // The time when the screen locker object is created.
-  base::Time start_time_;
-  // The time when the authentication is started.
-  base::Time authentication_start_time_;
-
-  // Delegate to forward all login status events to.
-  // Tests can use this to receive login status events.
-  LoginStatusConsumer* login_status_consumer_;
-
-  // Number of bad login attempts in a row.
-  int incorrect_passwords_count_;
-
-  // Copy of parameters passed to last call of OnLoginSuccess for usage in
-  // UnlockOnLoginSuccess().
-  scoped_ptr<AuthenticationParametersCapture> authentication_capture_;
-
-  // Provider for button icon set by the screenlockPrivate API.
-  scoped_ptr<ScreenlockIconProvider> screenlock_icon_provider_;
-
-  base::WeakPtrFactory<ScreenLocker> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(ScreenLocker);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREEN_LOCKER_H_