1 // Copyright (c) 2012 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 "chrome/browser/chromeos/ui/idle_logout_dialog_view.h" 6 7 #include "ash/shell.h" 8 #include "base/bind.h" 9 #include "base/bind_helpers.h" 10 #include "base/strings/string_number_conversions.h" 11 #include "base/strings/utf_string_conversions.h" 12 #include "base/time/time.h" 13 #include "chrome/browser/chromeos/kiosk_mode/kiosk_mode_settings.h" 14 #include "chrome/browser/ui/browser_list.h" 15 #include "chromeos/dbus/dbus_thread_manager.h" 16 #include "chromeos/dbus/session_manager_client.h" 17 #include "grit/generated_resources.h" 18 #include "ui/aura/window_event_dispatcher.h" 19 #include "ui/base/l10n/l10n_util.h" 20 #include "ui/views/controls/label.h" 21 #include "ui/views/layout/grid_layout.h" 22 #include "ui/views/layout/layout_constants.h" 23 #include "ui/views/widget/widget.h" 24 25 namespace { 26 27 // Global singleton instance of our dialog class. 28 chromeos::IdleLogoutDialogView* g_instance = NULL; 29 30 const int kIdleLogoutDialogMaxWidth = 300; 31 const int kCountdownUpdateIntervalMs = 1000; 32 33 } // namespace 34 35 namespace chromeos { 36 37 IdleLogoutSettingsProvider* IdleLogoutDialogView::provider_ = NULL; 38 39 //////////////////////////////////////////////////////////////////////////////// 40 // IdleLogoutSettingsProvider public methods 41 IdleLogoutSettingsProvider::IdleLogoutSettingsProvider() { 42 } 43 44 IdleLogoutSettingsProvider::~IdleLogoutSettingsProvider() { 45 } 46 47 base::TimeDelta IdleLogoutSettingsProvider::GetCountdownUpdateInterval() { 48 return base::TimeDelta::FromMilliseconds(kCountdownUpdateIntervalMs); 49 } 50 51 KioskModeSettings* IdleLogoutSettingsProvider::GetKioskModeSettings() { 52 return KioskModeSettings::Get(); 53 } 54 55 void IdleLogoutSettingsProvider::LogoutCurrentUser(IdleLogoutDialogView*) { 56 DBusThreadManager::Get()->GetSessionManagerClient()->StopSession(); 57 } 58 59 //////////////////////////////////////////////////////////////////////////////// 60 // IdleLogoutDialogView public static methods 61 // static 62 void IdleLogoutDialogView::ShowDialog() { 63 // We only show the dialog if it is not already showing. We don't want two 64 // countdowns on the screen for any reason. If the dialog is closed by using 65 // CloseDialog, we reset g_instance so the next Show will work correctly; in 66 // case the dialog is closed by the system, DeleteDelegate is guaranteed to be 67 // called, in which case we reset g_instance there if not already reset. 68 if (!g_instance) { 69 g_instance = new IdleLogoutDialogView(); 70 g_instance->InitAndShow(); 71 } 72 } 73 74 // static 75 void IdleLogoutDialogView::CloseDialog() { 76 if (g_instance) 77 g_instance->GetWidget()->Close(); 78 } 79 80 //////////////////////////////////////////////////////////////////////////////// 81 // Overridden from views::DialogDelegateView 82 int IdleLogoutDialogView::GetDialogButtons() const { 83 return ui::DIALOG_BUTTON_NONE; 84 } 85 86 ui::ModalType IdleLogoutDialogView::GetModalType() const { 87 return ui::MODAL_TYPE_WINDOW; 88 } 89 90 base::string16 IdleLogoutDialogView::GetWindowTitle() const { 91 return l10n_util::GetStringUTF16(IDS_IDLE_LOGOUT_TITLE); 92 } 93 94 bool IdleLogoutDialogView::Close() { 95 if (timer_.IsRunning()) 96 timer_.Stop(); 97 98 // We just closed our dialog. The global 99 // instance is invalid now, set it to null. 100 g_instance = NULL; 101 102 return true; 103 } 104 105 //////////////////////////////////////////////////////////////////////////////// 106 // IdleLogoutDialog private methods 107 IdleLogoutDialogView::IdleLogoutDialogView() 108 : restart_label_(NULL), 109 weak_ptr_factory_(this) { 110 if (!IdleLogoutDialogView::provider_) 111 IdleLogoutDialogView::provider_ = new IdleLogoutSettingsProvider(); 112 } 113 114 IdleLogoutDialogView::~IdleLogoutDialogView() { 115 if (this == g_instance) 116 g_instance = NULL; 117 } 118 119 void IdleLogoutDialogView::InitAndShow() { 120 KioskModeSettings* settings = 121 IdleLogoutDialogView::provider_->GetKioskModeSettings(); 122 if (!settings->is_initialized()) { 123 settings->Initialize(base::Bind(&IdleLogoutDialogView::InitAndShow, 124 weak_ptr_factory_.GetWeakPtr())); 125 return; 126 } 127 128 restart_label_ = new views::Label(); 129 restart_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT); 130 restart_label_->SetMultiLine(true); 131 132 views::GridLayout* layout = views::GridLayout::CreatePanel(this); 133 SetLayoutManager(layout); 134 135 views::ColumnSet* column_set = layout->AddColumnSet(0); 136 column_set->AddColumn(views::GridLayout::FILL, views::GridLayout::CENTER, 1, 137 views::GridLayout::FIXED, kIdleLogoutDialogMaxWidth, 0); 138 layout->StartRow(0, 0); 139 layout->AddPaddingRow(0, views::kRelatedControlHorizontalSpacing); 140 layout->StartRow(0, 0); 141 layout->AddView(restart_label_); 142 layout->AddPaddingRow(0, views::kRelatedControlHorizontalSpacing); 143 144 // We're initialized, show the dialog. 145 Show(); 146 } 147 148 void IdleLogoutDialogView::Show() { 149 KioskModeSettings* settings = 150 IdleLogoutDialogView::provider_->GetKioskModeSettings(); 151 152 // Setup the countdown label before showing. 153 countdown_end_time_ = base::Time::Now() + 154 settings->GetIdleLogoutWarningDuration(); 155 156 UpdateCountdown(); 157 158 views::DialogDelegate::CreateDialogWidget( 159 this, ash::Shell::GetPrimaryRootWindow(), NULL); 160 GetWidget()->SetAlwaysOnTop(true); 161 GetWidget()->Show(); 162 163 // Update countdown every 1 second. 164 timer_.Start(FROM_HERE, 165 IdleLogoutDialogView::provider_->GetCountdownUpdateInterval(), 166 this, 167 &IdleLogoutDialogView::UpdateCountdown); 168 } 169 170 void IdleLogoutDialogView::UpdateCountdown() { 171 base::TimeDelta logout_warning_time = countdown_end_time_ - 172 base::Time::Now(); 173 int64 seconds_left = (logout_warning_time.InMillisecondsF() / 174 base::Time::kMillisecondsPerSecond) + 0.5; 175 176 if (seconds_left > 1) { 177 restart_label_->SetText(l10n_util::GetStringFUTF16( 178 IDS_IDLE_LOGOUT_WARNING_RESTART, 179 base::Int64ToString16(seconds_left))); 180 } else if (seconds_left > 0) { 181 restart_label_->SetText(l10n_util::GetStringUTF16( 182 IDS_IDLE_LOGOUT_WARNING_RESTART_1S)); 183 } else { 184 // Set the label - the logout probably won't be instant. 185 restart_label_->SetText(l10n_util::GetStringUTF16( 186 IDS_IDLE_LOGOUT_WARNING_RESTART_NOW)); 187 188 // We're done; stop the timer and logout. 189 timer_.Stop(); 190 IdleLogoutDialogView::provider_->LogoutCurrentUser(this); 191 } 192 } 193 194 // static 195 IdleLogoutDialogView* IdleLogoutDialogView::current_instance() { 196 return g_instance; 197 } 198 199 // static 200 void IdleLogoutDialogView::set_settings_provider( 201 IdleLogoutSettingsProvider* provider) { 202 provider_ = provider; 203 } 204 205 } // namespace chromeos 206
