src/chrome/browser/ui/views/critical_notification_bubble_view.cc

   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/ui/views/critical_notification_bubble_view.h"
   6
   7 #include "base/prefs/pref_service.h"
   8 #include "base/strings/string_number_conversions.h"
   9 #include "base/strings/utf_string_conversions.h"
  10 #include "chrome/browser/browser_process.h"
  11 #include "chrome/browser/lifetime/application_lifetime.h"
  12 #include "chrome/browser/upgrade_detector.h"
  13 #include "chrome/common/pref_names.h"
  14 #include "content/public/browser/user_metrics.h"
  15 #include "grit/chromium_strings.h"
  16 #include "grit/generated_resources.h"
  17 #include "grit/locale_settings.h"
  18 #include "grit/theme_resources.h"
  19 #include "ui/accessibility/ax_view_state.h"
  20 #include "ui/base/accelerators/accelerator.h"
  21 #include "ui/base/l10n/l10n_util.h"
  22 #include "ui/base/resource/resource_bundle.h"
  23 #include "ui/views/controls/button/label_button.h"
  24 #include "ui/views/controls/image_view.h"
  25 #include "ui/views/controls/label.h"
  26 #include "ui/views/layout/grid_layout.h"
  27 #include "ui/views/layout/layout_constants.h"
  28 #include "ui/views/widget/widget.h"
  29
  30 using base::UserMetricsAction;
  31
  32 namespace {
  33
  34 // Layout constants.
  35 const int kInset = 2;
  36 const int kImageHeadlinePadding = 4;
  37 const int kHeadlineMessagePadding = 4;
  38 const int kMessageBubblePadding = 11;
  39
  40 // How long to give the user until auto-restart if no action is taken. The code
  41 // assumes this to be less than a minute.
  42 const int kCountdownDuration = 30;  // Seconds.
  43
  44 // How often to refresh the bubble UI to update the counter. As long as the
  45 // countdown is in seconds, this should be 1000 or lower.
  46 const int kRefreshBubbleEvery = 1000;  // Millisecond.
  47
  48 }  // namespace
  49
  50 ////////////////////////////////////////////////////////////////////////////////
  51 // CriticalNotificationBubbleView
  52
  53 CriticalNotificationBubbleView::CriticalNotificationBubbleView(
  54     views::View* anchor_view)
  55     : BubbleDelegateView(anchor_view, views::BubbleBorder::TOP_RIGHT),
  56       headline_(NULL),
  57       restart_button_(NULL),
  58       dismiss_button_(NULL) {
  59   set_close_on_deactivate(false);
  60 }
  61
  62 CriticalNotificationBubbleView::~CriticalNotificationBubbleView() {
  63 }
  64
  65 int CriticalNotificationBubbleView::GetRemainingTime() {
  66   base::TimeDelta time_lapsed = base::Time::Now() - bubble_created_;
  67   return kCountdownDuration - time_lapsed.InSeconds();
  68 }
  69
  70 void CriticalNotificationBubbleView::UpdateBubbleHeadline(int seconds) {
  71   if (seconds > 0) {
  72     headline_->SetText(
  73         l10n_util::GetStringFUTF16(IDS_CRITICAL_NOTIFICATION_HEADLINE,
  74             l10n_util::GetStringUTF16(IDS_PRODUCT_NAME),
  75             base::IntToString16(seconds)));
  76   } else {
  77     headline_->SetText(
  78         l10n_util::GetStringFUTF16(IDS_CRITICAL_NOTIFICATION_HEADLINE_ALTERNATE,
  79             l10n_util::GetStringUTF16(IDS_PRODUCT_NAME)));
  80   }
  81 }
  82
  83 void CriticalNotificationBubbleView::OnCountdown() {
  84   UpgradeDetector* upgrade_detector = UpgradeDetector::GetInstance();
  85   if (upgrade_detector->critical_update_acknowledged()) {
  86     // The user has already interacted with the bubble and chosen a path.
  87     GetWidget()->Close();
  88     return;
  89   }
  90
  91   int seconds = GetRemainingTime();
  92   if (seconds <= 0) {
  93     // Time's up!
  94     upgrade_detector->acknowledge_critical_update();
  95
  96     content::RecordAction(
  97         UserMetricsAction("CriticalNotification_AutoRestart"));
  98     refresh_timer_.Stop();
  99     chrome::AttemptRestart();
 100   }
 101
 102   // Update the counter. It may seem counter-intuitive to update the message
 103   // after we attempt restart, but remember that shutdown may be aborted by
 104   // an onbeforeunload handler, leaving the bubble up when the browser should
 105   // have restarted (giving the user another chance).
 106   UpdateBubbleHeadline(seconds);
 107   SchedulePaint();
 108 }
 109
 110 void CriticalNotificationBubbleView::ButtonPressed(
 111     views::Button* sender, const ui::Event& event) {
 112   // Let other bubbles know we have an answer from the user.
 113   UpgradeDetector::GetInstance()->acknowledge_critical_update();
 114
 115   if (sender == restart_button_) {
 116     content::RecordAction(UserMetricsAction("CriticalNotification_Restart"));
 117     chrome::AttemptRestart();
 118   } else if (sender == dismiss_button_) {
 119     content::RecordAction(UserMetricsAction("CriticalNotification_Ignore"));
 120     // If the counter reaches 0, we set a restart flag that must be cleared if
 121     // the user selects, for example, "Stay on this page" during an
 122     // onbeforeunload handler.
 123     PrefService* prefs = g_browser_process->local_state();
 124     if (prefs->HasPrefPath(prefs::kRestartLastSessionOnShutdown))
 125       prefs->ClearPref(prefs::kRestartLastSessionOnShutdown);
 126   } else {
 127     NOTREACHED();
 128   }
 129
 130   GetWidget()->Close();
 131 }
 132
 133 void CriticalNotificationBubbleView::WindowClosing() {
 134   refresh_timer_.Stop();
 135 }
 136
 137 void CriticalNotificationBubbleView::GetAccessibleState(
 138     ui::AXViewState* state) {
 139   state->role = ui::AX_ROLE_ALERT;
 140 }
 141
 142 void CriticalNotificationBubbleView::ViewHierarchyChanged(
 143     const ViewHierarchyChangedDetails& details) {
 144   if (details.is_add && details.child == this)
 145     NotifyAccessibilityEvent(ui::AX_EVENT_ALERT, true);
 146 }
 147
 148 bool CriticalNotificationBubbleView::AcceleratorPressed(
 149     const ui::Accelerator& accelerator) {
 150   if (accelerator.key_code() == ui::VKEY_ESCAPE)
 151     UpgradeDetector::GetInstance()->acknowledge_critical_update();
 152   return BubbleDelegateView::AcceleratorPressed(accelerator);
 153 }
 154
 155 void CriticalNotificationBubbleView::Init() {
 156   bubble_created_ = base::Time::Now();
 157
 158   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
 159
 160   views::GridLayout* layout = views::GridLayout::CreatePanel(this);
 161   layout->SetInsets(0, kInset, kInset, kInset);
 162   SetLayoutManager(layout);
 163
 164   const int top_column_set_id = 0;
 165   views::ColumnSet* top_columns = layout->AddColumnSet(top_column_set_id);
 166   top_columns->AddColumn(views::GridLayout::LEADING, views::GridLayout::CENTER,
 167                          0, views::GridLayout::USE_PREF, 0, 0);
 168   top_columns->AddPaddingColumn(0, kImageHeadlinePadding);
 169   top_columns->AddColumn(views::GridLayout::LEADING, views::GridLayout::CENTER,
 170                          0, views::GridLayout::USE_PREF, 0, 0);
 171   top_columns->AddPaddingColumn(1, 0);
 172   layout->StartRow(0, top_column_set_id);
 173
 174   views::ImageView* image = new views::ImageView();
 175   image->SetImage(rb.GetImageSkiaNamed(IDR_UPDATE_MENU_SEVERITY_HIGH));
 176   layout->AddView(image);
 177
 178   headline_ = new views::Label();
 179   headline_->SetFontList(rb.GetFontList(ui::ResourceBundle::MediumFont));
 180   UpdateBubbleHeadline(GetRemainingTime());
 181   layout->AddView(headline_);
 182
 183   const int middle_column_set_id = 1;
 184   views::ColumnSet* middle_column = layout->AddColumnSet(middle_column_set_id);
 185   middle_column->AddColumn(views::GridLayout::CENTER, views::GridLayout::CENTER,
 186                            0, views::GridLayout::USE_PREF, 0, 0);
 187   layout->StartRowWithPadding(0, middle_column_set_id,
 188                               0, kHeadlineMessagePadding);
 189
 190   views::Label* message = new views::Label();
 191   message->SetMultiLine(true);
 192   message->SetHorizontalAlignment(gfx::ALIGN_LEFT);
 193   message->SetText(l10n_util::GetStringFUTF16(IDS_CRITICAL_NOTIFICATION_TEXT,
 194       l10n_util::GetStringUTF16(IDS_PRODUCT_NAME)));
 195   message->SizeToFit(views::Widget::GetLocalizedContentsWidth(
 196       IDS_CRUCIAL_NOTIFICATION_BUBBLE_WIDTH_CHARS));
 197   layout->AddView(message);
 198
 199   const int bottom_column_set_id = 2;
 200   views::ColumnSet* bottom_columns = layout->AddColumnSet(bottom_column_set_id);
 201   bottom_columns->AddPaddingColumn(1, 0);
 202   bottom_columns->AddColumn(views::GridLayout::CENTER,
 203       views::GridLayout::CENTER, 0, views::GridLayout::USE_PREF, 0, 0);
 204   bottom_columns->AddPaddingColumn(0, views::kRelatedButtonHSpacing);
 205   bottom_columns->AddColumn(views::GridLayout::CENTER,
 206       views::GridLayout::CENTER, 0, views::GridLayout::USE_PREF, 0, 0);
 207   layout->StartRowWithPadding(0, bottom_column_set_id,
 208                               0, kMessageBubblePadding);
 209
 210   restart_button_ = new views::LabelButton(this,
 211       l10n_util::GetStringUTF16(IDS_CRITICAL_NOTIFICATION_RESTART));
 212   restart_button_->SetStyle(views::Button::STYLE_BUTTON);
 213   restart_button_->SetIsDefault(true);
 214   layout->AddView(restart_button_);
 215   dismiss_button_ = new views::LabelButton(this,
 216       l10n_util::GetStringUTF16(IDS_CRITICAL_NOTIFICATION_DISMISS));
 217   dismiss_button_->SetStyle(views::Button::STYLE_BUTTON);
 218   layout->AddView(dismiss_button_);
 219
 220   refresh_timer_.Start(FROM_HERE,
 221       base::TimeDelta::FromMilliseconds(kRefreshBubbleEvery),
 222       this, &CriticalNotificationBubbleView::OnCountdown);
 223
 224   content::RecordAction(UserMetricsAction("CriticalNotificationShown"));
 225 }