Componentize sad_tab

chrome/browser/ui/views/sad_tab_view.cc

Index: chrome/browser/ui/views/sad_tab_view.cc
diff --git a/chrome/browser/ui/views/sad_tab_view.cc b/chrome/browser/ui/views/sad_tab_view.cc
deleted file mode 100644
index 173455ecb87ba8aed454c7f4ceb5db9b65843fd6..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/views/sad_tab_view.cc
+++ /dev/null
@@ -1,283 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/browser/ui/views/sad_tab_view.h"
-
-#include <string>
-
-#include "base/metrics/field_trial.h"
-#include "base/metrics/histogram.h"
-#include "base/strings/utf_string_conversions.h"
-#include "chrome/browser/ui/browser.h"
-#include "chrome/browser/ui/browser_finder.h"
-#include "chrome/browser/ui/chrome_pages.h"
-#include "chrome/common/url_constants.h"
-#include "chrome/grit/generated_resources.h"
-#include "components/feedback/feedback_util.h"
-#include "content/public/browser/navigation_controller.h"
-#include "content/public/browser/web_contents.h"
-#include "grit/components_strings.h"
-#include "grit/theme_resources.h"
-#include "ui/base/l10n/l10n_util.h"
-#include "ui/base/resource/resource_bundle.h"
-#include "ui/views/background.h"
-#include "ui/views/controls/button/label_button.h"
-#include "ui/views/controls/button/label_button_border.h"
-#include "ui/views/controls/image_view.h"
-#include "ui/views/controls/label.h"
-#include "ui/views/controls/link.h"
-#include "ui/views/layout/grid_layout.h"
-#include "ui/views/widget/widget.h"
-
-using content::OpenURLParams;
-using content::WebContents;
-
-namespace {
-
-const int kPadding = 20;
-const float kMessageSize = 0.65f;
-const SkColor kTextColor = SK_ColorWHITE;
-const SkColor kCrashColor = SkColorSetRGB(35, 48, 64);
-const SkColor kKillColor = SkColorSetRGB(57, 48, 88);
-
-const char kCategoryTagCrash[] = "Crash";
-
-}  // namespace
-
-SadTabView::SadTabView(WebContents* web_contents, chrome::SadTabKind kind)
-    : web_contents_(web_contents),
-      kind_(kind),
-      painted_(false),
-      message_(NULL),
-      help_link_(NULL),
-      feedback_link_(NULL),
-      reload_button_(NULL) {
-  DCHECK(web_contents);
-
-  // Sometimes the user will never see this tab, so keep track of the total
-  // number of creation events to compare to display events.
-  // TODO(jamescook): Remove this after R20 stable.  Keep it for now so we can
-  // compare R20 to earlier versions.
-  UMA_HISTOGRAM_COUNTS("SadTab.Created", kind_);
-
-  // These stats should use the same counting approach and bucket size used for
-  // tab discard events in chromeos::OomPriorityManager so they can be
-  // directly compared.
-  // TODO(jamescook): Maybe track time between sad tabs?
-  switch (kind_) {
-    case chrome::SAD_TAB_KIND_CRASHED: {
-      static int crashed = 0;
-      crashed++;
-      UMA_HISTOGRAM_CUSTOM_COUNTS(
-          "Tabs.SadTab.CrashCreated", crashed, 1, 1000, 50);
-      break;
-    }
-    case chrome::SAD_TAB_KIND_KILLED: {
-      static int killed = 0;
-      killed++;
-      UMA_HISTOGRAM_CUSTOM_COUNTS(
-          "Tabs.SadTab.KillCreated", killed, 1, 1000, 50);
-      break;
-    }
-    default:
-      NOTREACHED();
-  }
-
-  // Set the background color.
-  set_background(views::Background::CreateSolidBackground(
-      (kind_ == chrome::SAD_TAB_KIND_CRASHED) ? kCrashColor : kKillColor));
-
-  views::GridLayout* layout = new views::GridLayout(this);
-  SetLayoutManager(layout);
-
-  const int column_set_id = 0;
-  views::ColumnSet* columns = layout->AddColumnSet(column_set_id);
-  columns->AddPaddingColumn(1, kPadding);
-  columns->AddColumn(views::GridLayout::CENTER, views::GridLayout::CENTER,
-                     0, views::GridLayout::USE_PREF, 0, 0);
-  columns->AddPaddingColumn(1, kPadding);
-
-  views::ImageView* image = new views::ImageView();
-  image->SetImage(ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
-      (kind_ == chrome::SAD_TAB_KIND_CRASHED) ? IDR_SAD_TAB : IDR_KILLED_TAB));
-  layout->StartRowWithPadding(0, column_set_id, 1, kPadding);
-  layout->AddView(image);
-
-  views::Label* title = CreateLabel(l10n_util::GetStringUTF16(
-      (kind_ == chrome::SAD_TAB_KIND_CRASHED) ?
-          IDS_SAD_TAB_TITLE : IDS_KILLED_TAB_TITLE));
-  ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
-  title->SetFontList(rb.GetFontList(ui::ResourceBundle::MediumFont));
-  layout->StartRowWithPadding(0, column_set_id, 0, kPadding);
-  layout->AddView(title);
-
-  message_ = CreateLabel(l10n_util::GetStringUTF16(
-      (kind_ == chrome::SAD_TAB_KIND_CRASHED) ?
-          IDS_SAD_TAB_MESSAGE : IDS_KILLED_TAB_MESSAGE));
-  message_->SetMultiLine(true);
-  layout->StartRowWithPadding(0, column_set_id, 0, kPadding);
-  layout->AddView(message_);
-
-  if (web_contents_) {
-    layout->StartRowWithPadding(0, column_set_id, 0, kPadding);
-    reload_button_ = new views::LabelButton(
-        this,
-        l10n_util::GetStringUTF16(IDS_SAD_TAB_RELOAD_LABEL));
-    reload_button_->SetStyle(views::Button::STYLE_BUTTON);
-    // Always render the reload button with chrome style borders; never rely on
-    // native styles.
-    reload_button_->SetBorder(scoped_ptr<views::Border>(
-        new views::LabelButtonBorder(reload_button_->style())));
-    layout->AddView(reload_button_);
-
-    help_link_ = CreateLink(l10n_util::GetStringUTF16(
-        (kind_ == chrome::SAD_TAB_KIND_CRASHED) ?
-            IDS_SAD_TAB_HELP_LINK : IDS_LEARN_MORE));
-
-    if (kind_ == chrome::SAD_TAB_KIND_CRASHED) {
-      size_t offset = 0;
-      base::string16 help_text(
-          l10n_util::GetStringFUTF16(IDS_SAD_TAB_HELP_MESSAGE,
-                                     base::string16(), &offset));
-      views::Label* help_prefix = CreateLabel(help_text.substr(0, offset));
-      views::Label* help_suffix = CreateLabel(help_text.substr(offset));
-
-      const int help_column_set_id = 1;
-      views::ColumnSet* help_columns = layout->AddColumnSet(help_column_set_id);
-      help_columns->AddPaddingColumn(1, kPadding);
-      // Center three middle columns for the help's [prefix][link][suffix].
-      for (size_t column = 0; column < 3; column++)
-        help_columns->AddColumn(views::GridLayout::CENTER,
-            views::GridLayout::CENTER, 0, views::GridLayout::USE_PREF, 0, 0);
-      help_columns->AddPaddingColumn(1, kPadding);
-
-      layout->StartRowWithPadding(0, help_column_set_id, 0, kPadding);
-      layout->AddView(help_prefix);
-      layout->AddView(help_link_);
-      layout->AddView(help_suffix);
-    } else {
-      layout->StartRowWithPadding(0, column_set_id, 0, kPadding);
-      layout->AddView(help_link_);
-
-      feedback_link_ = CreateLink(
-          l10n_util::GetStringUTF16(IDS_KILLED_TAB_FEEDBACK_LINK));
-      layout->StartRowWithPadding(0, column_set_id, 0, kPadding);
-      layout->AddView(feedback_link_);
-    }
-  }
-  layout->AddPaddingRow(1, kPadding);
-}
-
-SadTabView::~SadTabView() {}
-
-void SadTabView::LinkClicked(views::Link* source, int event_flags) {
-  DCHECK(web_contents_);
-  if (source == help_link_) {
-    GURL help_url((kind_ == chrome::SAD_TAB_KIND_CRASHED) ?
-        chrome::kCrashReasonURL : chrome::kKillReasonURL);
-    OpenURLParams params(
-        help_url, content::Referrer(), CURRENT_TAB,
-        ui::PAGE_TRANSITION_LINK, false);
-    web_contents_->OpenURL(params);
-  } else if (source == feedback_link_) {
-    chrome::ShowFeedbackPage(
-        chrome::FindBrowserWithWebContents(web_contents_),
-        l10n_util::GetStringUTF8(IDS_KILLED_TAB_FEEDBACK_MESSAGE),
-        std::string(kCategoryTagCrash));
-  }
-}
-
-void SadTabView::ButtonPressed(views::Button* sender,
-                               const ui::Event& event) {
-  DCHECK(web_contents_);
-  DCHECK_EQ(reload_button_, sender);
-  web_contents_->GetController().Reload(true);
-}
-
-void SadTabView::Layout() {
-  // Specify the maximum message width explicitly.
-  message_->SizeToFit(static_cast<int>(width() * kMessageSize));
-  View::Layout();
-}
-
-void SadTabView::OnPaint(gfx::Canvas* canvas) {
-  if (!painted_) {
-    // User actually saw the error, keep track for user experience stats.
-    // TODO(jamescook): Remove this after R20 stable.  Keep it for now so we can
-    // compare R20 to earlier versions.
-    UMA_HISTOGRAM_COUNTS("SadTab.Displayed", kind_);
-
-    // These stats should use the same counting approach and bucket size used
-    // for tab discard events in chromeos::OomPriorityManager so they
-    // can be directly compared.
-    switch (kind_) {
-      case chrome::SAD_TAB_KIND_CRASHED: {
-        static int crashed = 0;
-        UMA_HISTOGRAM_CUSTOM_COUNTS(
-            "Tabs.SadTab.CrashDisplayed", ++crashed, 1, 1000, 50);
-        break;
-      }
-      case chrome::SAD_TAB_KIND_KILLED: {
-        static int killed = 0;
-        UMA_HISTOGRAM_CUSTOM_COUNTS(
-            "Tabs.SadTab.KillDisplayed", ++killed, 1, 1000, 50);
-        break;
-      }
-      default:
-        NOTREACHED();
-    }
-    painted_ = true;
-  }
-  View::OnPaint(canvas);
-}
-
-void SadTabView::Show() {
-  views::Widget::InitParams sad_tab_params(
-      views::Widget::InitParams::TYPE_CONTROL);
-
-  // It is not possible to create a native_widget_win that has no parent in
-  // and later re-parent it.
-  // TODO(avi): This is a cheat. Can this be made cleaner?
-  sad_tab_params.parent = web_contents_->GetNativeView();
-
-  set_owned_by_client();
-
-  views::Widget* sad_tab = new views::Widget;
-  sad_tab->Init(sad_tab_params);
-  sad_tab->SetContentsView(this);
-
-  views::Widget::ReparentNativeView(sad_tab->GetNativeView(),
-                                    web_contents_->GetNativeView());
-  gfx::Rect bounds = web_contents_->GetContainerBounds();
-  sad_tab->SetBounds(gfx::Rect(bounds.size()));
-}
-
-void SadTabView::Close() {
-  if (GetWidget())
-    GetWidget()->Close();
-}
-
-views::Label* SadTabView::CreateLabel(const base::string16& text) {
-  views::Label* label = new views::Label(text);
-  label->SetBackgroundColor(background()->get_color());
-  label->SetEnabledColor(kTextColor);
-  return label;
-}
-
-views::Link* SadTabView::CreateLink(const base::string16& text) {
-  views::Link* link = new views::Link(text);
-  link->SetBackgroundColor(background()->get_color());
-  link->SetEnabledColor(kTextColor);
-  link->set_listener(this);
-  return link;
-}
-
-namespace chrome {
-
-SadTab* SadTab::Create(content::WebContents* web_contents,
-                       SadTabKind kind) {
-  return new SadTabView(web_contents, kind);
-}
-
-}  // namespace chrome