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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.
#ifndef CHROME_BROWSER_UI_ASH_SESSION_STATE_DELEGATE_CHROMEOS_H_
#define CHROME_BROWSER_UI_ASH_SESSION_STATE_DELEGATE_CHROMEOS_H_
#include "ash/session/session_state_delegate.h"
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/observer_list.h"
#include "chrome/browser/chromeos/login/ui/user_adding_screen.h"
#include "chromeos/login/login_state.h"
#include "components/user_manager/user_manager.h"
namespace ash {
class SessionStateObserver;
} // namespace ash
class SessionStateDelegateChromeos
: public ash::SessionStateDelegate,
public chromeos::LoginState::Observer,
public user_manager::UserManager::UserSessionStateObserver,
public chromeos::UserAddingScreen::Observer {
public:
SessionStateDelegateChromeos();
~SessionStateDelegateChromeos() override;
// ash::SessionStateDelegate:
content::BrowserContext* GetBrowserContextByIndex(
ash::MultiProfileIndex index) override;
content::BrowserContext* GetBrowserContextForWindow(
aura::Window* window) override;
content::BrowserContext* GetUserPresentingBrowserContextForWindow(
aura::Window* window) override;
int GetMaximumNumberOfLoggedInUsers() const override;
int NumberOfLoggedInUsers() const override;
bool CanAddUserToMultiProfile(AddUserError* error) const override;
bool IsActiveUserSessionStarted() const override;
bool CanLockScreen() const override;
bool IsScreenLocked() const override;
bool ShouldLockScreenBeforeSuspending() const override;
void LockScreen() override;
void UnlockScreen() override;
bool IsUserSessionBlocked() const override;
SessionState GetSessionState() const override;
const user_manager::UserInfo* GetUserInfo(
ash::MultiProfileIndex index) const override;
const user_manager::UserInfo* GetUserInfo(
content::BrowserContext* context) const override;
bool ShouldShowAvatar(aura::Window* window) const override;
void SwitchActiveUser(const std::string& user_id) override;
void CycleActiveUser(CycleUser cycle_user) override;
bool IsMultiProfileAllowedByPrimaryUserPolicy() const override;
void AddSessionStateObserver(ash::SessionStateObserver* observer) override;
void RemoveSessionStateObserver(ash::SessionStateObserver* observer) override;
// chromeos::LoginState::Observer overrides.
void LoggedInStateChanged() override;
// user_manager::UserManager::UserSessionStateObserver:
void ActiveUserChanged(const user_manager::User* active_user) override;
void UserAddedToSession(const user_manager::User* added_user) override;
// chromeos::UserAddingScreen::Observer:
void OnUserAddingStarted() override;
void OnUserAddingFinished() override;
private:
// Sets session state to |new_state|.
// If |force| is true then |new_state| is set even if existing session
// state is the same (used for explicit initialization).
void SetSessionState(SessionState new_state, bool force);
// Notify observers about session state change.
void NotifySessionStateChanged();
// Switches to a new user. This call might show a dialog asking the user if he
// wants to stop desktop casting before switching.
void TryToSwitchUser(const std::string& user_id);
// List of observers is only used on Chrome OS for now.
ObserverList<ash::SessionStateObserver> session_state_observer_list_;
// Session state (e.g. login screen vs. user session).
SessionState session_state_;
DISALLOW_COPY_AND_ASSIGN(SessionStateDelegateChromeos);
};
#endif // CHROME_BROWSER_UI_ASH_SESSION_STATE_DELEGATE_CHROMEOS_H_
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