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// Copyright (c) 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.
#include "base/macros.h"
#include "base/observer_list.h"
#include "chromeos/chromeos_export.h"
namespace chromeos {
// Tracks the login state of chrome, accessible to Ash and other chromeos code.
class CHROMEOS_EXPORT LoginState {
enum LoggedInState {
LOGGED_IN_NONE, // Not logged in
LOGGED_IN_SAFE_MODE, // Not logged in and login not allowed for non-owners
LOGGED_IN_ACTIVE // A user has logged in
enum LoggedInUserType {
LOGGED_IN_USER_NONE, // User is not logged in
LOGGED_IN_USER_REGULAR, // A regular user is logged in
LOGGED_IN_USER_OWNER, // The owner of the device is logged in
LOGGED_IN_USER_GUEST, // A guest is logged in (i.e. incognito)
LOGGED_IN_USER_PUBLIC_ACCOUNT, // A user is logged in to a public session.
LOGGED_IN_USER_SUPERVISED, // A supervised user is logged in
LOGGED_IN_USER_KIOSK_APP // Is in kiosk app mode
class Observer {
// Called when either the login state or the logged in user type changes.
virtual void LoggedInStateChanged() = 0;
virtual ~Observer() {}
// Manage singleton instance.
static void Initialize();
static void Shutdown();
static LoginState* Get();
static bool IsInitialized();
// Add/remove observers.
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
// Sets the logged in state, user type, and primary user hash when the
// primary user initialy logs in. Also notifies observers.
void SetLoggedInStateAndPrimaryUser(
LoggedInState state,
LoggedInUserType type,
const std::string& primary_user_hash);
// Sets the logged in state and user type. Also notifies observers. Used
// in tests or situations where there is no primary user (e.g. from the
// login screen).
void SetLoggedInState(LoggedInState state, LoggedInUserType type);
// Gets the logged in user type.
LoggedInUserType GetLoggedInUserType() const;
// Returns true if a user is considered to be logged in.
bool IsUserLoggedIn() const;
// Returns true if |logged_in_state_| is safe mode (i.e. the user is not yet
// logged in, and only the owner will be allowed to log in).
bool IsInSafeMode() const;
// Returns true if logged in to a guest session.
bool IsGuestSessionUser() const;
// Returns true if logged in to a public session.
bool IsPublicSessionUser() const;
// Returns true if logged in as a kiosk app.
bool IsKioskApp() const;
// Whether a network profile is created for the user.
bool UserHasNetworkProfile() const;
// Returns true if the user is an authenticated user (i.e. the user is not
// using an anonymous session like public or guest session)
bool IsUserAuthenticated() const;
// Returns true if the user is authenticated by logging into Google account
// (i.e. not using an anonymous nor supervised session).
bool IsUserGaiaAuthenticated() const;
void set_always_logged_in(bool always_logged_in) {
always_logged_in_ = always_logged_in;
const std::string& primary_user_hash() const { return primary_user_hash_; }
virtual ~LoginState();
void NotifyObservers();
LoggedInState logged_in_state_;
LoggedInUserType logged_in_user_type_;
std::string primary_user_hash_;
base::ObserverList<Observer> observer_list_;
// If true, it always thinks the current status as logged in. Set to true by
// default running on a Linux desktop without flags and test cases. To test
// behaviors with a specific login state, call set_always_logged_in(false).
bool always_logged_in_;
} // namespace chromeos