ui/chromeos/user_activity_power_manager_notifier.h

   1 // Copyright 2014 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 UI_CHROMEOS_USER_ACTIVITY_POWER_MANAGER_NOTIFIER_H_
   6 #define UI_CHROMEOS_USER_ACTIVITY_POWER_MANAGER_NOTIFIER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/compiler_specific.h"
  10 #include "base/time/time.h"
  11 #include "ui/base/user_activity/user_activity_observer.h"
  12 #include "ui/chromeos/ui_chromeos_export.h"
  13
  14 namespace ui {
  15
  16 class UserActivityDetector;
  17
  18 // Notifies the power manager when the user is active.
  19 class UI_CHROMEOS_EXPORT UserActivityPowerManagerNotifier
  20     : public UserActivityObserver {
  21  public:
  22   explicit UserActivityPowerManagerNotifier(UserActivityDetector* detector);
  23   ~UserActivityPowerManagerNotifier() override;
  24
  25   // UserActivityObserver implementation.
  26   void OnUserActivity(const Event* event) override;
  27
  28  private:
  29   UserActivityDetector* detector_;  // not owned
  30
  31   // Last time that the power manager was notified.
  32   base::TimeTicks last_notify_time_;
  33
  34   DISALLOW_COPY_AND_ASSIGN(UserActivityPowerManagerNotifier);
  35 };
  36
  37 }  // namespace ui
  38
  39 #endif  // UI_CHROMEOS_USER_ACTIVITY_POWER_MANAGER_NOTIFIER_H_