1// Copyright 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CHROME_BROWSER_CHROMEOS_EXTENSIONS_EXTENSION_SYSTEM_EVENT_OBSERVER_H_
6#define CHROME_BROWSER_CHROMEOS_EXTENSIONS_EXTENSION_SYSTEM_EVENT_OBSERVER_H_
7
8#include "base/basictypes.h"
9#include "base/compiler_specific.h"
10#include "chromeos/dbus/power_manager_client.h"
11#include "chromeos/dbus/session_manager_client.h"
12
13namespace chromeos {
14
15// Dispatches extension events in response to system events.
16class ExtensionSystemEventObserver : public PowerManagerClient::Observer,
17                                     public SessionManagerClient::Observer {
18 public:
19  // This class registers/unregisters itself as an observer in ctor/dtor.
20  ExtensionSystemEventObserver();
21  virtual ~ExtensionSystemEventObserver();
22
23  // PowerManagerClient::Observer overrides:
24  virtual void BrightnessChanged(int level, bool user_initiated) OVERRIDE;
25  virtual void SuspendDone(const base::TimeDelta& sleep_duration) OVERRIDE;
26
27  // SessionManagerClient::Observer override.
28  virtual void ScreenIsUnlocked() OVERRIDE;
29
30 private:
31  DISALLOW_COPY_AND_ASSIGN(ExtensionSystemEventObserver);
32};
33
34}  // namespace chromeos
35
36#endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_EXTENSION_SYSTEM_EVENT_OBSERVER_H_
37