chromeos/dbus/root_power_manager_observer.h

   1 // Copyright (c) 2012 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 CHROMEOS_DBUS_ROOT_POWER_MANAGER_OBSERVER_H_
   6 #define CHROMEOS_DBUS_ROOT_POWER_MANAGER_OBSERVER_H_
   7
   8 #include "base/time.h"
   9 #include "chromeos/chromeos_export.h"
  10
  11 namespace chromeos {
  12
  13 class CHROMEOS_EXPORT RootPowerManagerObserver {
  14  public:
  15   // Called when the power button is pressed or released.
  16   virtual void OnPowerButtonEvent(bool down,
  17                                   const base::TimeTicks& timestamp) {}
  18
  19   // Called when the device's lid is opened or closed.
  20   virtual void OnLidEvent(bool open, const base::TimeTicks& timestamp) {}
  21
  22   // Called when the system resumes from sleep.
  23   virtual void OnResume(const base::TimeDelta& sleep_duration) {}
  24
  25  protected:
  26   virtual ~RootPowerManagerObserver() {}
  27 };
  28
  29 }  // namespace chromeos
  30
  31 #endif  // CHROMEOS_DBUS_ROOT_POWER_MANAGER_OBSERVER_H_