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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 "chrome/browser/chromeos/login/users/user_manager.h"
#include "chromeos/login/login_state.h"
namespace ash {
class SessionStateObserver;
} // namespace ash
class SessionStateDelegateChromeos
: public ash::SessionStateDelegate,
public chromeos::LoginState::Observer,
public chromeos::UserManager::UserSessionStateObserver,
public chromeos::UserAddingScreen::Observer {
public:
SessionStateDelegateChromeos();
virtual ~SessionStateDelegateChromeos();
// ash::SessionStateDelegate:
virtual content::BrowserContext* GetBrowserContextByIndex(
ash::MultiProfileIndex index) OVERRIDE;
virtual content::BrowserContext* GetBrowserContextForWindow(
aura::Window* window) OVERRIDE;
virtual int GetMaximumNumberOfLoggedInUsers() const OVERRIDE;
virtual int NumberOfLoggedInUsers() const OVERRIDE;
virtual bool IsActiveUserSessionStarted() const OVERRIDE;
virtual bool CanLockScreen() const OVERRIDE;
virtual bool IsScreenLocked() const OVERRIDE;
virtual bool ShouldLockScreenBeforeSuspending() const OVERRIDE;
virtual void LockScreen() OVERRIDE;
virtual void UnlockScreen() OVERRIDE;
virtual bool IsUserSessionBlocked() const OVERRIDE;
virtual SessionState GetSessionState() const OVERRIDE;
virtual const user_manager::UserInfo* GetUserInfo(
ash::MultiProfileIndex index) const OVERRIDE;
virtual const user_manager::UserInfo* GetUserInfo(
content::BrowserContext* context) const OVERRIDE;
virtual bool ShouldShowAvatar(aura::Window* window) const OVERRIDE;
virtual void SwitchActiveUser(const std::string& user_id) OVERRIDE;
virtual void CycleActiveUser(CycleUser cycle_user) OVERRIDE;
virtual void AddSessionStateObserver(
ash::SessionStateObserver* observer) OVERRIDE;
virtual void RemoveSessionStateObserver(
ash::SessionStateObserver* observer) OVERRIDE;
// chromeos::LoginState::Observer overrides.
virtual void LoggedInStateChanged() OVERRIDE;
// chromeos::UserManager::UserSessionStateObserver:
virtual void ActiveUserChanged(const chromeos::User* active_user) OVERRIDE;
virtual void UserAddedToSession(const chromeos::User* added_user) OVERRIDE;
// chromeos::UserAddingScreen::Observer:
virtual void OnUserAddingStarted() OVERRIDE;
virtual 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();
// 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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