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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 #include "ash/common/system/chromeos/session/tray_session_length_limit.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 #include <memory> | |
| 9 #include <utility> | |
| 10 | |
| 11 #include "ash/common/system/system_notifier.h" | |
| 12 #include "ash/common/system/tray/label_tray_view.h" | |
| 13 #include "ash/common/system/tray/system_tray.h" | |
| 14 #include "ash/common/system/tray/system_tray_delegate.h" | |
| 15 #include "ash/common/system/tray/system_tray_notifier.h" | |
| 16 #include "ash/common/wm_shell.h" | |
| 17 #include "ash/resources/grit/ash_resources.h" | |
| 18 #include "ash/strings/grit/ash_strings.h" | |
| 19 #include "base/logging.h" | |
| 20 #include "base/strings/utf_string_conversions.h" | |
| 21 #include "ui/base/l10n/l10n_util.h" | |
| 22 #include "ui/base/l10n/time_format.h" | |
| 23 #include "ui/base/resource/resource_bundle.h" | |
| 24 #include "ui/message_center/message_center.h" | |
| 25 #include "ui/message_center/notification.h" | |
| 26 #include "ui/views/view.h" | |
| 27 | |
| 28 namespace ash { | |
| 29 namespace { | |
| 30 | |
| 31 // If the remaining session time falls below this threshold, the user should be | |
| 32 // informed that the session is about to expire. | |
| 33 const int kExpiringSoonThresholdInMinutes = 5; | |
| 34 | |
| 35 // Use 500ms interval for updates to notification and tray bubble to reduce the | |
| 36 // likelihood of a user-visible skip in high load situations (as might happen | |
| 37 // with 1000ms). | |
| 38 const int kTimerIntervalInMilliseconds = 500; | |
| 39 | |
| 40 } // namespace | |
| 41 | |
| 42 // static | |
| 43 const char TraySessionLengthLimit::kNotificationId[] = | |
| 44 "chrome://session/timeout"; | |
| 45 | |
| 46 TraySessionLengthLimit::TraySessionLengthLimit(SystemTray* system_tray) | |
| 47 : SystemTrayItem(system_tray, UMA_SESSION_LENGTH_LIMIT), | |
| 48 limit_state_(LIMIT_NONE), | |
| 49 last_limit_state_(LIMIT_NONE), | |
| 50 tray_bubble_view_(NULL) { | |
| 51 WmShell::Get()->system_tray_notifier()->AddSessionLengthLimitObserver(this); | |
| 52 Update(); | |
| 53 } | |
| 54 | |
| 55 TraySessionLengthLimit::~TraySessionLengthLimit() { | |
| 56 WmShell::Get()->system_tray_notifier()->RemoveSessionLengthLimitObserver( | |
| 57 this); | |
| 58 } | |
| 59 | |
| 60 // Add view to tray bubble. | |
| 61 views::View* TraySessionLengthLimit::CreateDefaultView(LoginStatus status) { | |
| 62 CHECK(!tray_bubble_view_); | |
| 63 UpdateState(); | |
| 64 if (limit_state_ == LIMIT_NONE) | |
| 65 return NULL; | |
| 66 tray_bubble_view_ = | |
| 67 new LabelTrayView(NULL /* click_listener */, | |
| 68 IDR_AURA_UBER_TRAY_BUBBLE_SESSION_LENGTH_LIMIT); | |
| 69 tray_bubble_view_->SetMessage(ComposeTrayBubbleMessage()); | |
| 70 return tray_bubble_view_; | |
| 71 } | |
| 72 | |
| 73 // View has been removed from tray bubble. | |
| 74 void TraySessionLengthLimit::DestroyDefaultView() { | |
| 75 tray_bubble_view_ = NULL; | |
| 76 } | |
| 77 | |
| 78 void TraySessionLengthLimit::OnSessionStartTimeChanged() { | |
| 79 Update(); | |
| 80 } | |
| 81 | |
| 82 void TraySessionLengthLimit::OnSessionLengthLimitChanged() { | |
| 83 Update(); | |
| 84 } | |
| 85 | |
| 86 void TraySessionLengthLimit::Update() { | |
| 87 UpdateState(); | |
| 88 UpdateNotification(); | |
| 89 UpdateTrayBubbleView(); | |
| 90 } | |
| 91 | |
| 92 void TraySessionLengthLimit::UpdateState() { | |
| 93 SystemTrayDelegate* delegate = WmShell::Get()->system_tray_delegate(); | |
| 94 if (delegate->GetSessionStartTime(&session_start_time_) && | |
| 95 delegate->GetSessionLengthLimit(&time_limit_)) { | |
| 96 const base::TimeDelta expiring_soon_threshold( | |
| 97 base::TimeDelta::FromMinutes(kExpiringSoonThresholdInMinutes)); | |
| 98 remaining_session_time_ = | |
| 99 std::max(time_limit_ - (base::TimeTicks::Now() - session_start_time_), | |
| 100 base::TimeDelta()); | |
| 101 limit_state_ = remaining_session_time_ <= expiring_soon_threshold | |
| 102 ? LIMIT_EXPIRING_SOON | |
| 103 : LIMIT_SET; | |
| 104 if (!timer_) | |
| 105 timer_.reset(new base::RepeatingTimer); | |
| 106 if (!timer_->IsRunning()) { | |
| 107 timer_->Start(FROM_HERE, base::TimeDelta::FromMilliseconds( | |
| 108 kTimerIntervalInMilliseconds), | |
| 109 this, &TraySessionLengthLimit::Update); | |
| 110 } | |
| 111 } else { | |
| 112 remaining_session_time_ = base::TimeDelta(); | |
| 113 limit_state_ = LIMIT_NONE; | |
| 114 timer_.reset(); | |
| 115 } | |
| 116 } | |
| 117 | |
| 118 void TraySessionLengthLimit::UpdateNotification() { | |
| 119 message_center::MessageCenter* message_center = | |
| 120 message_center::MessageCenter::Get(); | |
| 121 | |
| 122 // If state hasn't changed and the notification has already been acknowledged, | |
| 123 // we won't re-create it. | |
| 124 if (limit_state_ == last_limit_state_ && | |
| 125 !message_center->FindVisibleNotificationById(kNotificationId)) { | |
| 126 return; | |
| 127 } | |
| 128 | |
| 129 // After state change, any possibly existing notification is removed to make | |
| 130 // sure it is re-shown even if it had been acknowledged by the user before | |
| 131 // (and in the rare case of state change towards LIMIT_NONE to make the | |
| 132 // notification disappear). | |
| 133 if (limit_state_ != last_limit_state_ && | |
| 134 message_center->FindVisibleNotificationById(kNotificationId)) { | |
| 135 message_center::MessageCenter::Get()->RemoveNotification( | |
| 136 kNotificationId, false /* by_user */); | |
| 137 } | |
| 138 | |
| 139 // For LIMIT_NONE, there's nothing more to do. | |
| 140 if (limit_state_ == LIMIT_NONE) { | |
| 141 last_limit_state_ = limit_state_; | |
| 142 return; | |
| 143 } | |
| 144 | |
| 145 ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance(); | |
| 146 message_center::RichNotificationData data; | |
| 147 data.should_make_spoken_feedback_for_popup_updates = | |
| 148 (limit_state_ != last_limit_state_); | |
| 149 std::unique_ptr<message_center::Notification> notification( | |
| 150 new message_center::Notification( | |
| 151 message_center::NOTIFICATION_TYPE_SIMPLE, kNotificationId, | |
| 152 base::string16() /* title */, | |
| 153 ComposeNotificationMessage() /* message */, | |
| 154 bundle.GetImageNamed( | |
| 155 IDR_AURA_UBER_TRAY_NOTIFICATION_SESSION_LENGTH_LIMIT), | |
| 156 base::string16() /* display_source */, GURL(), | |
| 157 message_center::NotifierId( | |
| 158 message_center::NotifierId::SYSTEM_COMPONENT, | |
| 159 system_notifier::kNotifierSessionLengthTimeout), | |
| 160 data, NULL /* delegate */)); | |
| 161 notification->SetSystemPriority(); | |
| 162 if (message_center->FindVisibleNotificationById(kNotificationId)) | |
| 163 message_center->UpdateNotification(kNotificationId, | |
| 164 std::move(notification)); | |
| 165 else | |
| 166 message_center->AddNotification(std::move(notification)); | |
| 167 last_limit_state_ = limit_state_; | |
| 168 } | |
| 169 | |
| 170 void TraySessionLengthLimit::UpdateTrayBubbleView() const { | |
| 171 if (!tray_bubble_view_) | |
| 172 return; | |
| 173 if (limit_state_ == LIMIT_NONE) | |
| 174 tray_bubble_view_->SetMessage(base::string16()); | |
| 175 else | |
| 176 tray_bubble_view_->SetMessage(ComposeTrayBubbleMessage()); | |
| 177 tray_bubble_view_->Layout(); | |
| 178 } | |
| 179 | |
| 180 base::string16 TraySessionLengthLimit::ComposeNotificationMessage() const { | |
| 181 return l10n_util::GetStringFUTF16( | |
| 182 IDS_ASH_STATUS_TRAY_NOTIFICATION_SESSION_LENGTH_LIMIT, | |
| 183 ui::TimeFormat::Detailed(ui::TimeFormat::FORMAT_DURATION, | |
| 184 ui::TimeFormat::LENGTH_LONG, 10, | |
| 185 remaining_session_time_)); | |
| 186 } | |
| 187 | |
| 188 base::string16 TraySessionLengthLimit::ComposeTrayBubbleMessage() const { | |
| 189 return l10n_util::GetStringFUTF16( | |
| 190 IDS_ASH_STATUS_TRAY_BUBBLE_SESSION_LENGTH_LIMIT, | |
| 191 ui::TimeFormat::Detailed(ui::TimeFormat::FORMAT_DURATION, | |
| 192 ui::TimeFormat::LENGTH_LONG, 10, | |
| 193 remaining_session_time_)); | |
| 194 } | |
| 195 | |
| 196 } // namespace ash | |
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