root/chromeos/login/login_state.cc

DEFINITIONS

1. AlwaysLoggedInByDefault
2. Initialize
3. Shutdown
4. Get
5. IsInitialized
6. AddObserver
7. RemoveObserver
8. SetLoggedInState
9. GetLoggedInUserType
10. IsUserLoggedIn
11. IsInSafeMode
12. IsGuestUser
13. IsUserAuthenticated
14. IsUserGaiaAuthenticated
15. always_logged_in_
16. NotifyObservers

// 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 "chromeos/login/login_state.h"

#include "base/command_line.h"
#include "base/logging.h"
#include "base/sys_info.h"
#include "chromeos/chromeos_switches.h"

namespace chromeos {

namespace {

// When running a Chrome OS build outside of a device (i.e. on a developer's
// workstation) and not running as login-manager, pretend like we're always
// logged in.
bool AlwaysLoggedInByDefault() {
  return !base::SysInfo::IsRunningOnChromeOS() &&
      !CommandLine::ForCurrentProcess()->HasSwitch(switches::kLoginManager);
}

}  // namespace

static LoginState* g_login_state = NULL;

// static
void LoginState::Initialize() {
  CHECK(!g_login_state);
  g_login_state = new LoginState();
}

// static
void LoginState::Shutdown() {
  CHECK(g_login_state);
  delete g_login_state;
  g_login_state = NULL;
}

// static
LoginState* LoginState::Get() {
  CHECK(g_login_state) << "LoginState::Get() called before Initialize()";
  return g_login_state;
}

// static
bool LoginState::IsInitialized() {
  return g_login_state;
}

void LoginState::AddObserver(Observer* observer) {
  observer_list_.AddObserver(observer);
}

void LoginState::RemoveObserver(Observer* observer) {
  observer_list_.RemoveObserver(observer);
}

void LoginState::SetLoggedInState(LoggedInState state,
                                  LoggedInUserType type) {
  if (state == logged_in_state_ && type == logged_in_user_type_)
    return;
  VLOG(1) << "LoggedInState: " << state << " UserType: " << type;
  logged_in_state_ = state;
  logged_in_user_type_ = type;
  NotifyObservers();
}

LoginState::LoggedInUserType LoginState::GetLoggedInUserType() const {
  return logged_in_user_type_;
}

bool LoginState::IsUserLoggedIn() const {
  if (always_logged_in_)
    return true;
  return logged_in_state_ == LOGGED_IN_ACTIVE;
}

bool LoginState::IsInSafeMode() const {
  DCHECK(!always_logged_in_ || logged_in_state_ != LOGGED_IN_SAFE_MODE);
  return logged_in_state_ == LOGGED_IN_SAFE_MODE;
}

bool LoginState::IsGuestUser() const {
  if (!IsUserLoggedIn())
    return false;
  switch (logged_in_user_type_) {
    case LOGGED_IN_USER_NONE:
    case LOGGED_IN_USER_REGULAR:
    case LOGGED_IN_USER_OWNER:
    case LOGGED_IN_USER_LOCALLY_MANAGED:
    case LOGGED_IN_USER_KIOSK_APP:
      return false;
    case LOGGED_IN_USER_GUEST:
    case LOGGED_IN_USER_RETAIL_MODE:
    case LOGGED_IN_USER_PUBLIC_ACCOUNT:
      return true;
  }
  NOTREACHED();
  return false;
}

bool LoginState::IsUserAuthenticated() const {
  LoggedInUserType type = logged_in_user_type_;
  return type == chromeos::LoginState::LOGGED_IN_USER_REGULAR ||
      type == chromeos::LoginState::LOGGED_IN_USER_OWNER ||
      type == chromeos::LoginState::LOGGED_IN_USER_LOCALLY_MANAGED;
}

bool LoginState::IsUserGaiaAuthenticated() const {
  LoggedInUserType type = logged_in_user_type_;
  return type == chromeos::LoginState::LOGGED_IN_USER_REGULAR ||
      type == chromeos::LoginState::LOGGED_IN_USER_OWNER;
}

// Private methods

LoginState::LoginState() : logged_in_state_(LOGGED_IN_OOBE),
                           logged_in_user_type_(LOGGED_IN_USER_NONE),
                           always_logged_in_(AlwaysLoggedInByDefault()) {
}

LoginState::~LoginState() {
}

void LoginState::NotifyObservers() {
  FOR_EACH_OBSERVER(LoginState::Observer, observer_list_,
                    LoggedInStateChanged());
}

}  // namespace chromeos