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/chromeos/ui_chromeos_export.h"
  12 #include "ui/wm/core/user_activity_observer.h"
  13
  14 namespace wm {
  15 class UserActivityDetector;
  16 }  // namespace wm
  17
  18 namespace ui {
  19
  20 // Notifies the power manager when the user is active.
  21 class UI_CHROMEOS_EXPORT UserActivityPowerManagerNotifier
  22     : public ::wm::UserActivityObserver {
  23  public:
  24   explicit UserActivityPowerManagerNotifier(
  25       ::wm::UserActivityDetector* detector);
  26   virtual ~UserActivityPowerManagerNotifier();
  27
  28   // UserActivityObserver implementation.
  29   virtual void OnUserActivity(const Event* event) OVERRIDE;
  30
  31  private:
  32   ::wm::UserActivityDetector* detector_;  // not owned
  33
  34   // Last time that the power manager was notified.
  35   base::TimeTicks last_notify_time_;
  36
  37   DISALLOW_COPY_AND_ASSIGN(UserActivityPowerManagerNotifier);
  38 };
  39
  40 }  // namespace ui
  41
  42 #endif  // UI_CHROMEOS_USER_ACTIVITY_POWER_MANAGER_NOTIFIER_H_