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// Copyright (c) 2012 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/power/video_activity_notifier.h"
#include "ash/shell.h"
#include "chromeos/dbus/dbus_thread_manager.h"
#include "chromeos/dbus/power_manager_client.h"
namespace {
// Minimum number of seconds between notifications.
const int kNotifyIntervalSec = 5;
} // namespace
namespace chromeos {
VideoActivityNotifier::VideoActivityNotifier() {
ash::Shell::GetInstance()->video_detector()->AddObserver(this);
}
VideoActivityNotifier::~VideoActivityNotifier() {
ash::Shell::GetInstance()->video_detector()->RemoveObserver(this);
}
void VideoActivityNotifier::OnVideoDetected() {
base::TimeTicks now = base::TimeTicks::Now();
// InSeconds() truncates rather than rounding, so it's fine for this
// comparison.
if (last_notify_time_.is_null() ||
(now - last_notify_time_).InSeconds() >= kNotifyIntervalSec) {
DBusThreadManager::Get()->GetPowerManagerClient()->NotifyVideoActivity(now);
last_notify_time_ = now;
}
}
} // namespace chromeos
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