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#include "ui/chromeos/user_activity_power_manager_notifier.h"
6
7#include "chromeos/dbus/dbus_thread_manager.h"
8#include "chromeos/dbus/power_manager_client.h"
9#include "ui/events/event.h"
10#include "ui/events/event_constants.h"
11#include "ui/events/keycodes/keyboard_codes_posix.h"
12#include "ui/wm/core/user_activity_detector.h"
13
14namespace ui {
15namespace {
16
17// Minimum number of seconds between notifications.
18const int kNotifyIntervalSec = 5;
19
20// Returns a UserActivityType describing |event|.
21power_manager::UserActivityType GetUserActivityTypeForEvent(
22    const Event* event) {
23  if (!event || event->type() != ET_KEY_PRESSED)
24    return power_manager::USER_ACTIVITY_OTHER;
25
26  switch (static_cast<const KeyEvent*>(event)->key_code()) {
27    case VKEY_BRIGHTNESS_DOWN:
28      return power_manager::USER_ACTIVITY_BRIGHTNESS_DOWN_KEY_PRESS;
29    case VKEY_BRIGHTNESS_UP:
30      return power_manager::USER_ACTIVITY_BRIGHTNESS_UP_KEY_PRESS;
31    case VKEY_VOLUME_DOWN:
32      return power_manager::USER_ACTIVITY_VOLUME_DOWN_KEY_PRESS;
33    case VKEY_VOLUME_MUTE:
34      return power_manager::USER_ACTIVITY_VOLUME_MUTE_KEY_PRESS;
35    case VKEY_VOLUME_UP:
36      return power_manager::USER_ACTIVITY_VOLUME_UP_KEY_PRESS;
37    default:
38      return power_manager::USER_ACTIVITY_OTHER;
39  }
40}
41
42}  // namespace
43
44UserActivityPowerManagerNotifier::UserActivityPowerManagerNotifier(
45    ::wm::UserActivityDetector* detector)
46    : detector_(detector) {
47  detector_->AddObserver(this);
48}
49
50UserActivityPowerManagerNotifier::~UserActivityPowerManagerNotifier() {
51  detector_->RemoveObserver(this);
52}
53
54void UserActivityPowerManagerNotifier::OnUserActivity(const Event* event) {
55  base::TimeTicks now = base::TimeTicks::Now();
56  // InSeconds() truncates rather than rounding, so it's fine for this
57  // comparison.
58  if (last_notify_time_.is_null() ||
59      (now - last_notify_time_).InSeconds() >= kNotifyIntervalSec) {
60    chromeos::DBusThreadManager::Get()->GetPowerManagerClient()->
61        NotifyUserActivity(GetUserActivityTypeForEvent(event));
62    last_notify_time_ = now;
63  }
64}
65
66}  // namespace ui
67