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      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_
     43