chrome/browser/ui/views/sad_tab_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/sad_tab_view.h"
   6
   7 #include <string>
   8
   9 #include "base/metrics/field_trial.h"
  10 #include "base/metrics/histogram.h"
  11 #include "base/strings/utf_string_conversions.h"
  12 #include "chrome/browser/feedback/feedback_util.h"
  13 #include "chrome/browser/ui/browser.h"
  14 #include "chrome/browser/ui/browser_finder.h"
  15 #include "chrome/browser/ui/chrome_pages.h"
  16 #include "chrome/common/url_constants.h"
  17 #include "content/public/browser/navigation_controller.h"
  18 #include "content/public/browser/web_contents.h"
  19 #include "content/public/browser/web_contents_view.h"
  20 #include "grit/generated_resources.h"
  21 #include "grit/theme_resources.h"
  22 #include "ui/base/l10n/l10n_util.h"
  23 #include "ui/base/resource/resource_bundle.h"
  24 #include "ui/views/background.h"
  25 #include "ui/views/controls/button/label_button.h"
  26 #include "ui/views/controls/image_view.h"
  27 #include "ui/views/controls/label.h"
  28 #include "ui/views/controls/link.h"
  29 #include "ui/views/layout/grid_layout.h"
  30 #include "ui/views/widget/widget.h"
  31
  32 using content::OpenURLParams;
  33 using content::WebContents;
  34
  35 namespace {
  36
  37 const int kPadding = 20;
  38 const float kMessageSize = 0.65f;
  39 const SkColor kTextColor = SK_ColorWHITE;
  40 const SkColor kCrashColor = SkColorSetRGB(35, 48, 64);
  41 const SkColor kKillColor = SkColorSetRGB(57, 48, 88);
  42
  43 const char kCategoryTagCrash[] = "Crash";
  44
  45 }  // namespace
  46
  47 SadTabView::SadTabView(WebContents* web_contents, chrome::SadTabKind kind)
  48     : web_contents_(web_contents),
  49       kind_(kind),
  50       painted_(false),
  51       message_(NULL),
  52       help_link_(NULL),
  53       feedback_link_(NULL),
  54       reload_button_(NULL) {
  55   DCHECK(web_contents);
  56
  57   // Sometimes the user will never see this tab, so keep track of the total
  58   // number of creation events to compare to display events.
  59   // TODO(jamescook): Remove this after R20 stable.  Keep it for now so we can
  60   // compare R20 to earlier versions.
  61   UMA_HISTOGRAM_COUNTS("SadTab.Created", kind_);
  62
  63   // These stats should use the same counting approach and bucket size used for
  64   // tab discard events in chromeos::OomPriorityManager so they can be
  65   // directly compared.
  66   // TODO(jamescook): Maybe track time between sad tabs?
  67   switch (kind_) {
  68     case chrome::SAD_TAB_KIND_CRASHED: {
  69       static int crashed = 0;
  70       crashed++;
  71       UMA_HISTOGRAM_CUSTOM_COUNTS(
  72           "Tabs.SadTab.CrashCreated", crashed, 1, 1000, 50);
  73       break;
  74     }
  75     case chrome::SAD_TAB_KIND_KILLED: {
  76       static int killed = 0;
  77       killed++;
  78       UMA_HISTOGRAM_CUSTOM_COUNTS(
  79           "Tabs.SadTab.KillCreated", killed, 1, 1000, 50);
  80       break;
  81     }
  82     default:
  83       NOTREACHED();
  84   }
  85
  86   // Set the background color.
  87   set_background(views::Background::CreateSolidBackground(
  88       (kind_ == chrome::SAD_TAB_KIND_CRASHED) ? kCrashColor : kKillColor));
  89
  90   views::GridLayout* layout = new views::GridLayout(this);
  91   SetLayoutManager(layout);
  92
  93   const int column_set_id = 0;
  94   views::ColumnSet* columns = layout->AddColumnSet(column_set_id);
  95   columns->AddPaddingColumn(1, kPadding);
  96   columns->AddColumn(views::GridLayout::CENTER, views::GridLayout::CENTER,
  97                      0, views::GridLayout::USE_PREF, 0, 0);
  98   columns->AddPaddingColumn(1, kPadding);
  99
 100   views::ImageView* image = new views::ImageView();
 101   image->SetImage(ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
 102       (kind_ == chrome::SAD_TAB_KIND_CRASHED) ? IDR_SAD_TAB : IDR_KILLED_TAB));
 103   layout->StartRowWithPadding(0, column_set_id, 1, kPadding);
 104   layout->AddView(image);
 105
 106   views::Label* title = CreateLabel(l10n_util::GetStringUTF16(
 107       (kind_ == chrome::SAD_TAB_KIND_CRASHED) ?
 108           IDS_SAD_TAB_TITLE : IDS_KILLED_TAB_TITLE));
 109   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
 110   title->SetFontList(rb.GetFontList(ui::ResourceBundle::MediumFont));
 111   layout->StartRowWithPadding(0, column_set_id, 0, kPadding);
 112   layout->AddView(title);
 113
 114   message_ = CreateLabel(l10n_util::GetStringUTF16(
 115       (kind_ == chrome::SAD_TAB_KIND_CRASHED) ?
 116           IDS_SAD_TAB_MESSAGE : IDS_KILLED_TAB_MESSAGE));
 117   message_->SetMultiLine(true);
 118   layout->StartRowWithPadding(0, column_set_id, 0, kPadding);
 119   layout->AddView(message_);
 120
 121   if (web_contents_) {
 122     layout->StartRowWithPadding(0, column_set_id, 0, kPadding);
 123     reload_button_ = new views::LabelButton(
 124         this,
 125         l10n_util::GetStringUTF16(IDS_SAD_TAB_RELOAD_LABEL));
 126     reload_button_->SetStyle(views::Button::STYLE_BUTTON);
 127     layout->AddView(reload_button_);
 128
 129     help_link_ = CreateLink(l10n_util::GetStringUTF16(
 130         (kind_ == chrome::SAD_TAB_KIND_CRASHED) ?
 131             IDS_SAD_TAB_HELP_LINK : IDS_LEARN_MORE));
 132
 133     if (kind_ == chrome::SAD_TAB_KIND_CRASHED) {
 134       size_t offset = 0;
 135       base::string16 help_text(
 136           l10n_util::GetStringFUTF16(IDS_SAD_TAB_HELP_MESSAGE,
 137                                      base::string16(), &offset));
 138       views::Label* help_prefix = CreateLabel(help_text.substr(0, offset));
 139       views::Label* help_suffix = CreateLabel(help_text.substr(offset));
 140
 141       const int help_column_set_id = 1;
 142       views::ColumnSet* help_columns = layout->AddColumnSet(help_column_set_id);
 143       help_columns->AddPaddingColumn(1, kPadding);
 144       // Center three middle columns for the help's [prefix][link][suffix].
 145       for (size_t column = 0; column < 3; column++)
 146         help_columns->AddColumn(views::GridLayout::CENTER,
 147             views::GridLayout::CENTER, 0, views::GridLayout::USE_PREF, 0, 0);
 148       help_columns->AddPaddingColumn(1, kPadding);
 149
 150       layout->StartRowWithPadding(0, help_column_set_id, 0, kPadding);
 151       layout->AddView(help_prefix);
 152       layout->AddView(help_link_);
 153       layout->AddView(help_suffix);
 154     } else {
 155       layout->StartRowWithPadding(0, column_set_id, 0, kPadding);
 156       layout->AddView(help_link_);
 157
 158       feedback_link_ = CreateLink(
 159           l10n_util::GetStringUTF16(IDS_KILLED_TAB_FEEDBACK_LINK));
 160       layout->StartRowWithPadding(0, column_set_id, 0, kPadding);
 161       layout->AddView(feedback_link_);
 162     }
 163   }
 164   layout->AddPaddingRow(1, kPadding);
 165 }
 166
 167 SadTabView::~SadTabView() {}
 168
 169 void SadTabView::LinkClicked(views::Link* source, int event_flags) {
 170   DCHECK(web_contents_);
 171   if (source == help_link_) {
 172     GURL help_url((kind_ == chrome::SAD_TAB_KIND_CRASHED) ?
 173         chrome::kCrashReasonURL : chrome::kKillReasonURL);
 174     OpenURLParams params(
 175         help_url, content::Referrer(), CURRENT_TAB,
 176         content::PAGE_TRANSITION_LINK, false);
 177     web_contents_->OpenURL(params);
 178   } else if (source == feedback_link_) {
 179     chrome::ShowFeedbackPage(
 180         chrome::FindBrowserWithWebContents(web_contents_),
 181         l10n_util::GetStringUTF8(IDS_KILLED_TAB_FEEDBACK_MESSAGE),
 182         std::string(kCategoryTagCrash));
 183   }
 184 }
 185
 186 void SadTabView::ButtonPressed(views::Button* sender,
 187                                const ui::Event& event) {
 188   DCHECK(web_contents_);
 189   DCHECK_EQ(reload_button_, sender);
 190   web_contents_->GetController().Reload(true);
 191 }
 192
 193 void SadTabView::Layout() {
 194   // Specify the maximum message width explicitly.
 195   message_->SizeToFit(static_cast<int>(width() * kMessageSize));
 196   View::Layout();
 197 }
 198
 199 void SadTabView::OnPaint(gfx::Canvas* canvas) {
 200   if (!painted_) {
 201     // User actually saw the error, keep track for user experience stats.
 202     // TODO(jamescook): Remove this after R20 stable.  Keep it for now so we can
 203     // compare R20 to earlier versions.
 204     UMA_HISTOGRAM_COUNTS("SadTab.Displayed", kind_);
 205
 206     // These stats should use the same counting approach and bucket size used
 207     // for tab discard events in chromeos::OomPriorityManager so they
 208     // can be directly compared.
 209     switch (kind_) {
 210       case chrome::SAD_TAB_KIND_CRASHED: {
 211         static int crashed = 0;
 212         UMA_HISTOGRAM_CUSTOM_COUNTS(
 213             "Tabs.SadTab.CrashDisplayed", ++crashed, 1, 1000, 50);
 214         break;
 215       }
 216       case chrome::SAD_TAB_KIND_KILLED: {
 217         static int killed = 0;
 218         UMA_HISTOGRAM_CUSTOM_COUNTS(
 219             "Tabs.SadTab.KillDisplayed", ++killed, 1, 1000, 50);
 220         break;
 221       }
 222       default:
 223         NOTREACHED();
 224     }
 225     painted_ = true;
 226   }
 227   View::OnPaint(canvas);
 228 }
 229
 230 void SadTabView::Show() {
 231   views::Widget::InitParams sad_tab_params(
 232       views::Widget::InitParams::TYPE_CONTROL);
 233
 234   // It is not possible to create a native_widget_win that has no parent in
 235   // and later re-parent it.
 236   // TODO(avi): This is a cheat. Can this be made cleaner?
 237   sad_tab_params.parent = web_contents_->GetView()->GetNativeView();
 238
 239   set_owned_by_client();
 240
 241   views::Widget* sad_tab = new views::Widget;
 242   sad_tab->Init(sad_tab_params);
 243   sad_tab->SetContentsView(this);
 244
 245   views::Widget::ReparentNativeView(sad_tab->GetNativeView(),
 246                                     web_contents_->GetView()->GetNativeView());
 247   gfx::Rect bounds;
 248   web_contents_->GetView()->GetContainerBounds(&bounds);
 249   sad_tab->SetBounds(gfx::Rect(bounds.size()));
 250 }
 251
 252 void SadTabView::Close() {
 253   if (GetWidget())
 254     GetWidget()->Close();
 255 }
 256
 257 views::Label* SadTabView::CreateLabel(const base::string16& text) {
 258   views::Label* label = new views::Label(text);
 259   label->SetBackgroundColor(background()->get_color());
 260   label->SetEnabledColor(kTextColor);
 261   return label;
 262 }
 263
 264 views::Link* SadTabView::CreateLink(const base::string16& text) {
 265   views::Link* link = new views::Link(text);
 266   link->SetBackgroundColor(background()->get_color());
 267   link->SetEnabledColor(kTextColor);
 268   link->set_listener(this);
 269   return link;
 270 }
 271
 272 namespace chrome {
 273
 274 SadTab* SadTab::Create(content::WebContents* web_contents,
 275                        SadTabKind kind) {
 276   return new SadTabView(web_contents, kind);
 277 }
 278
 279 }  // namespace chrome