chrome/browser/chromeos/idle_detector.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 CHROME_BROWSER_CHROMEOS_IDLE_DETECTOR_H_
   6 #define CHROME_BROWSER_CHROMEOS_IDLE_DETECTOR_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/callback.h"
  10 #include "base/compiler_specific.h"
  11 #include "base/time/time.h"
  12 #include "base/timer/timer.h"
  13 #include "ui/wm/core/user_activity_observer.h"
  14
  15 namespace chromeos {
  16
  17 class IdleDetector : public wm::UserActivityObserver {
  18  public:
  19   IdleDetector(const base::Closure& on_active_callback,
  20                const base::Closure& on_idle_callback);
  21   virtual ~IdleDetector();
  22
  23   void Start(const base::TimeDelta& timeout);
  24
  25  private:
  26   // wm::UserActivityObserver overrides:
  27   virtual void OnUserActivity(const ui::Event* event) OVERRIDE;
  28
  29   // Resets |timer_| to fire when we reach our idle timeout.
  30   void ResetTimer();
  31
  32   base::OneShotTimer<IdleDetector> timer_;
  33
  34   base::Closure active_callback_;
  35   base::Closure idle_callback_;
  36
  37   base::TimeDelta timeout_;
  38
  39   DISALLOW_COPY_AND_ASSIGN(IdleDetector);
  40 };
  41
  42 }  // namespace chromeos
  43
  44 #endif  // CHROME_BROWSER_CHROMEOS_IDLE_DETECTOR_H_