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/browser_resources.h" 18#include "grit/generated_resources.h" 19#include "ui/aura/root_window.h" 20#include "ui/base/l10n/l10n_util.h" 21#include "ui/base/resource/resource_bundle.h" 22#include "ui/views/controls/label.h" 23#include "ui/views/layout/grid_layout.h" 24#include "ui/views/layout/layout_constants.h" 25#include "ui/views/widget/widget.h" 26 27namespace { 28 29// Global singleton instance of our dialog class. 30chromeos::IdleLogoutDialogView* g_instance = NULL; 31 32const int kIdleLogoutDialogMaxWidth = 300; 33const int kCountdownUpdateIntervalMs = 1000; 34 35} // namespace 36 37namespace chromeos { 38 39IdleLogoutSettingsProvider* IdleLogoutDialogView::provider_ = NULL; 40 41//////////////////////////////////////////////////////////////////////////////// 42// IdleLogoutSettingsProvider public methods 43IdleLogoutSettingsProvider::IdleLogoutSettingsProvider() { 44} 45 46IdleLogoutSettingsProvider::~IdleLogoutSettingsProvider() { 47} 48 49base::TimeDelta IdleLogoutSettingsProvider::GetCountdownUpdateInterval() { 50 return base::TimeDelta::FromMilliseconds(kCountdownUpdateIntervalMs); 51} 52 53KioskModeSettings* IdleLogoutSettingsProvider::GetKioskModeSettings() { 54 return KioskModeSettings::Get(); 55} 56 57void IdleLogoutSettingsProvider::LogoutCurrentUser(IdleLogoutDialogView*) { 58 DBusThreadManager::Get()->GetSessionManagerClient()->StopSession(); 59} 60 61//////////////////////////////////////////////////////////////////////////////// 62// IdleLogoutDialogView public static methods 63// static 64void IdleLogoutDialogView::ShowDialog() { 65 // We only show the dialog if it is not already showing. We don't want two 66 // countdowns on the screen for any reason. If the dialog is closed by using 67 // CloseDialog, we reset g_instance so the next Show will work correctly; in 68 // case the dialog is closed by the system, DeleteDelegate is guaranteed to be 69 // called, in which case we reset g_instance there if not already reset. 70 if (!g_instance) { 71 g_instance = new IdleLogoutDialogView(); 72 g_instance->InitAndShow(); 73 } 74} 75 76// static 77void IdleLogoutDialogView::CloseDialog() { 78 if (g_instance) 79 g_instance->GetWidget()->Close(); 80} 81 82//////////////////////////////////////////////////////////////////////////////// 83// Overridden from views::DialogDelegateView 84int IdleLogoutDialogView::GetDialogButtons() const { 85 return ui::DIALOG_BUTTON_NONE; 86} 87 88ui::ModalType IdleLogoutDialogView::GetModalType() const { 89 return ui::MODAL_TYPE_WINDOW; 90} 91 92base::string16 IdleLogoutDialogView::GetWindowTitle() const { 93 return l10n_util::GetStringUTF16(IDS_IDLE_LOGOUT_TITLE); 94} 95 96bool IdleLogoutDialogView::Close() { 97 if (timer_.IsRunning()) 98 timer_.Stop(); 99 100 // We just closed our dialog. The global 101 // instance is invalid now, set it to null. 102 g_instance = NULL; 103 104 return true; 105} 106 107//////////////////////////////////////////////////////////////////////////////// 108// IdleLogoutDialog private methods 109IdleLogoutDialogView::IdleLogoutDialogView() 110 : restart_label_(NULL), 111 weak_ptr_factory_(this) { 112 if (!IdleLogoutDialogView::provider_) 113 IdleLogoutDialogView::provider_ = new IdleLogoutSettingsProvider(); 114} 115 116IdleLogoutDialogView::~IdleLogoutDialogView() { 117 if (this == g_instance) 118 g_instance = NULL; 119} 120 121void IdleLogoutDialogView::InitAndShow() { 122 KioskModeSettings* settings = 123 IdleLogoutDialogView::provider_->GetKioskModeSettings(); 124 if (!settings->is_initialized()) { 125 settings->Initialize(base::Bind(&IdleLogoutDialogView::InitAndShow, 126 weak_ptr_factory_.GetWeakPtr())); 127 return; 128 } 129 130 ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance(); 131 132 restart_label_ = new views::Label(); 133 restart_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT); 134 restart_label_->SetMultiLine(true); 135 restart_label_->SetFont(rb.GetFont(ui::ResourceBundle::BaseFont)); 136 137 views::GridLayout* layout = views::GridLayout::CreatePanel(this); 138 SetLayoutManager(layout); 139 140 views::ColumnSet* column_set = layout->AddColumnSet(0); 141 column_set->AddColumn(views::GridLayout::FILL, views::GridLayout::CENTER, 1, 142 views::GridLayout::FIXED, kIdleLogoutDialogMaxWidth, 0); 143 layout->StartRow(0, 0); 144 layout->AddPaddingRow(0, views::kRelatedControlHorizontalSpacing); 145 layout->StartRow(0, 0); 146 layout->AddView(restart_label_); 147 layout->AddPaddingRow(0, views::kRelatedControlHorizontalSpacing); 148 149 // We're initialized, show the dialog. 150 Show(); 151} 152 153void IdleLogoutDialogView::Show() { 154 KioskModeSettings* settings = 155 IdleLogoutDialogView::provider_->GetKioskModeSettings(); 156 157 // Setup the countdown label before showing. 158 countdown_end_time_ = base::Time::Now() + 159 settings->GetIdleLogoutWarningDuration(); 160 161 UpdateCountdown(); 162 163 views::DialogDelegate::CreateDialogWidget( 164 this, ash::Shell::GetPrimaryRootWindow(), NULL); 165 GetWidget()->SetAlwaysOnTop(true); 166 GetWidget()->Show(); 167 168 // Update countdown every 1 second. 169 timer_.Start(FROM_HERE, 170 IdleLogoutDialogView::provider_->GetCountdownUpdateInterval(), 171 this, 172 &IdleLogoutDialogView::UpdateCountdown); 173} 174 175void IdleLogoutDialogView::UpdateCountdown() { 176 base::TimeDelta logout_warning_time = countdown_end_time_ - 177 base::Time::Now(); 178 int64 seconds_left = (logout_warning_time.InMillisecondsF() / 179 base::Time::kMillisecondsPerSecond) + 0.5; 180 181 if (seconds_left > 1) { 182 restart_label_->SetText(l10n_util::GetStringFUTF16( 183 IDS_IDLE_LOGOUT_WARNING_RESTART, 184 base::Int64ToString16(seconds_left))); 185 } else if (seconds_left > 0) { 186 restart_label_->SetText(l10n_util::GetStringUTF16( 187 IDS_IDLE_LOGOUT_WARNING_RESTART_1S)); 188 } else { 189 // Set the label - the logout probably won't be instant. 190 restart_label_->SetText(l10n_util::GetStringUTF16( 191 IDS_IDLE_LOGOUT_WARNING_RESTART_NOW)); 192 193 // We're done; stop the timer and logout. 194 timer_.Stop(); 195 IdleLogoutDialogView::provider_->LogoutCurrentUser(this); 196 } 197} 198 199// static 200IdleLogoutDialogView* IdleLogoutDialogView::current_instance() { 201 return g_instance; 202} 203 204// static 205void IdleLogoutDialogView::set_settings_provider( 206 IdleLogoutSettingsProvider* provider) { 207 provider_ = provider; 208} 209 210} // namespace chromeos 211