blob: 4e381f3cb38bbe1f0d25ab32b3b67515cedf8902 [file] [log] [blame]
// Copyright 2020 The Chromium OS 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 <string>
#include <base/memory/ref_counted.h>
#include <base/memory/weak_ptr.h>
#include <base/observer_list.h>
#include <dbus/bus.h>
#include <session_manager/dbus-proxies.h>
#include "typecd/session_manager_observer_interface.h"
namespace typecd {
// A proxy class that listens to DBus signals from the session manager and
// notifies a list of registered observers for events.
class SessionManagerProxy {
explicit SessionManagerProxy(scoped_refptr<dbus::Bus> bus);
~SessionManagerProxy() = default;
void AddObserver(SessionManagerObserverInterface* observer);
// Calls the SessionManager IsScreenLocked() D-Bus function and returns the
// value returned by it. If there is a D-Bus error, returns false.
bool IsScreenLocked();
// Uses the SessionManager RetrieveSessionState() D-Bus function and returns
// true if a session is in the "started" state. If there is a D-Bus error,
// returns false.
bool IsSessionStarted();
// Handles the ScreenIsLocked DBus signal.
void OnScreenIsLocked();
// Handles the ScreenIsUnlocked DBus signal.
void OnScreenIsUnlocked();
// Handles the SessionStateChanged DBus signal.
void OnSessionStateChanged(const std::string& state);
org::chromium::SessionManagerInterfaceProxy proxy_;
base::ObserverList<SessionManagerObserverInterface> observer_list_;
base::WeakPtrFactory<SessionManagerProxy> weak_ptr_factory_;
} // namespace typecd