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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/chromeos/idle_detector.h"
#include "base/bind.h"
#include "base/logging.h"
#include "ui/base/user_activity/user_activity_detector.h"
namespace chromeos {
IdleDetector::IdleDetector(const base::Closure& on_idle_callback)
: idle_callback_(on_idle_callback) {}
IdleDetector::~IdleDetector() {
ui::UserActivityDetector* user_activity_detector =
ui::UserActivityDetector::Get();
if (user_activity_detector && user_activity_detector->HasObserver(this))
user_activity_detector->RemoveObserver(this);
}
void IdleDetector::OnUserActivity(const ui::Event* event) {
ResetTimer();
}
void IdleDetector::Start(const base::TimeDelta& timeout) {
timeout_ = timeout;
if (!ui::UserActivityDetector::Get()->HasObserver(this))
ui::UserActivityDetector::Get()->AddObserver(this);
ResetTimer();
}
void IdleDetector::ResetTimer() {
if (timer_.IsRunning())
timer_.Reset();
else
timer_.Start(FROM_HERE, timeout_, idle_callback_);
}
} // namespace chromeos
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