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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_SESSION_MANAGER_CORE_SESSION_MANAGER_OBSERVER_H_
#define COMPONENTS_SESSION_MANAGER_CORE_SESSION_MANAGER_OBSERVER_H_
#include "base/observer_list_types.h"
#include "components/session_manager/session_manager_types.h"
namespace session_manager {
// An observer interface for SessionManager.
// TODO(xiyuan): Use this to replace UserManager::UserSessionStateObserver,
// http://crbug.com/657149.
class SessionManagerObserver : public base::CheckedObserver {
public:
// Invoked when session state is changed.
virtual void OnSessionStateChanged() {}
// Invoked when session creation is triggered.
virtual void OnSessionCreationStarted(const AccountId& account_id) {}
// Invoked when session is created. Note: though, on this invocation,
// the session may not be fully ready to be started. Followed by this
// callback, more initialization is required to set up a user session,
// such as profile creation, service initialization tied to user, etc.
virtual void OnSessionCreated(const AccountId& account_id) {}
// Invoked when a user profile is loaded.
virtual void OnUserProfileLoaded(const AccountId& account_id) {}
// Invoked when a user session is started. If this is a new user on the
// machine this will not be called until after post-login steps are finished
// (for example a profile picture has been selected). In contrast,
// UserSessionStateObserver::OnActiveUserChanged() is invoked immediately
// after the user has logged in.
virtual void OnUserSessionStarted(bool is_primary_user) {}
// Invoked when the specific part of login/lock WebUI is considered to be
// visible.
//
// Possible series of notifications:
// 1. Boot into fresh OOBE. `OnLoginOrLockScreenVisible()`.
// 2. Boot into user pods list (normal boot). Same for lock screen.
// `OnLoginOrLockScreenVisible()`.
// 3. Boot into GAIA sign in UI (user pods display disabled or no users):
// `OnLoginOrLockScreenVisible()`.
// 4. Boot into retail mode. `OnLoginOrLockScreenVisible()`.
virtual void OnLoginOrLockScreenVisible() {}
// Invoked when the user attempts to unlock the lock screen, it reports the
// type of authentication method used and whether it was a successful or
// failed unlock attempt.
virtual void OnUnlockScreenAttempt(const bool success,
const UnlockType unlock_type) {}
// Invoked when the tasks to make a user session work are completed.
// Currently following ones are considered as critical tasks:
// - Login state update.
// - Shelf Icon loading.
// - Browser window restoration.
virtual void OnUserSessionStartUpTaskCompleted() {}
};
} // namespace session_manager
#endif // COMPONENTS_SESSION_MANAGER_CORE_SESSION_MANAGER_OBSERVER_H_
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