chrome/browser/ui/webui/conflicts_ui.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/webui/conflicts_ui.h"
   6
   7 #if defined(OS_WIN)
   8
   9 #include <string>
  10
  11 #include "base/bind.h"
  12 #include "base/bind_helpers.h"
  13 #include "base/memory/ref_counted_memory.h"
  14 #include "base/strings/string_number_conversions.h"
  15 #include "base/strings/utf_string_conversions.h"
  16 #include "base/values.h"
  17 #include "chrome/browser/chrome_notification_types.h"
  18 #include "chrome/browser/enumerate_modules_model_win.h"
  19 #include "chrome/browser/profiles/profile.h"
  20 #include "chrome/common/url_constants.h"
  21 #include "chrome/grit/chromium_strings.h"
  22 #include "chrome/grit/generated_resources.h"
  23 #include "content/public/browser/notification_observer.h"
  24 #include "content/public/browser/notification_registrar.h"
  25 #include "content/public/browser/notification_service.h"
  26 #include "content/public/browser/user_metrics.h"
  27 #include "content/public/browser/web_contents.h"
  28 #include "content/public/browser/web_ui.h"
  29 #include "content/public/browser/web_ui_data_source.h"
  30 #include "content/public/browser/web_ui_message_handler.h"
  31 #include "grit/browser_resources.h"
  32 #include "grit/components_strings.h"
  33 #include "grit/theme_resources.h"
  34 #include "ui/base/l10n/l10n_util.h"
  35 #include "ui/base/layout.h"
  36 #include "ui/base/resource/resource_bundle.h"
  37
  38 using base::UserMetricsAction;
  39 using content::WebContents;
  40 using content::WebUIMessageHandler;
  41
  42 namespace {
  43
  44 content::WebUIDataSource* CreateConflictsUIHTMLSource() {
  45   content::WebUIDataSource* source =
  46       content::WebUIDataSource::Create(chrome::kChromeUIConflictsHost);
  47
  48   source->AddLocalizedString("loadingMessage", IDS_CONFLICTS_LOADING_MESSAGE);
  49   source->AddLocalizedString("modulesLongTitle",
  50                              IDS_CONFLICTS_CHECK_PAGE_TITLE_LONG);
  51   source->AddLocalizedString("modulesBlurb", IDS_CONFLICTS_EXPLANATION_TEXT);
  52   source->AddLocalizedString("moduleSuspectedBad",
  53                              IDS_CONFLICTS_CHECK_WARNING_SUSPECTED);
  54   source->AddLocalizedString("moduleConfirmedBad",
  55                      IDS_CONFLICTS_CHECK_WARNING_CONFIRMED);
  56   source->AddLocalizedString("helpCenterLink", IDS_LEARN_MORE);
  57   source->AddLocalizedString("investigatingText",
  58                              IDS_CONFLICTS_CHECK_INVESTIGATING);
  59   source->AddLocalizedString("modulesNoneLoaded",
  60                              IDS_CONFLICTS_NO_MODULES_LOADED);
  61   source->AddLocalizedString("headerSoftware", IDS_CONFLICTS_HEADER_SOFTWARE);
  62   source->AddLocalizedString("headerSignedBy", IDS_CONFLICTS_HEADER_SIGNED_BY);
  63   source->AddLocalizedString("headerLocation", IDS_CONFLICTS_HEADER_LOCATION);
  64   source->AddLocalizedString("headerVersion", IDS_CONFLICTS_HEADER_VERSION);
  65   source->AddLocalizedString("headerHelpTip", IDS_CONFLICTS_HEADER_HELP_TIP);
  66   source->SetJsonPath("strings.js");
  67   source->AddResourcePath("conflicts.js", IDR_ABOUT_CONFLICTS_JS);
  68   source->SetDefaultResource(IDR_ABOUT_CONFLICTS_HTML);
  69   return source;
  70 }
  71
  72 ////////////////////////////////////////////////////////////////////////////////
  73 //
  74 // ConflictsDOMHandler
  75 //
  76 ////////////////////////////////////////////////////////////////////////////////
  77
  78 // The handler for JavaScript messages for the about:flags page.
  79 class ConflictsDOMHandler : public WebUIMessageHandler,
  80                             public content::NotificationObserver {
  81  public:
  82   ConflictsDOMHandler() {}
  83   ~ConflictsDOMHandler() override {}
  84
  85   // WebUIMessageHandler implementation.
  86   void RegisterMessages() override;
  87
  88   // Callback for the "requestModuleList" message.
  89   void HandleRequestModuleList(const base::ListValue* args);
  90
  91  private:
  92   void SendModuleList();
  93
  94   void Observe(int type,
  95                const content::NotificationSource& source,
  96                const content::NotificationDetails& details) override;
  97
  98   content::NotificationRegistrar registrar_;
  99
 100   DISALLOW_COPY_AND_ASSIGN(ConflictsDOMHandler);
 101 };
 102
 103 void ConflictsDOMHandler::RegisterMessages() {
 104   web_ui()->RegisterMessageCallback("requestModuleList",
 105       base::Bind(&ConflictsDOMHandler::HandleRequestModuleList,
 106                  base::Unretained(this)));
 107 }
 108
 109 void ConflictsDOMHandler::HandleRequestModuleList(const base::ListValue* args) {
 110   // This request is handled asynchronously. See Observe for when we reply back.
 111   registrar_.Add(this, chrome::NOTIFICATION_MODULE_LIST_ENUMERATED,
 112                  content::NotificationService::AllSources());
 113   EnumerateModulesModel::GetInstance()->ScanNow();
 114 }
 115
 116 void ConflictsDOMHandler::SendModuleList() {
 117   EnumerateModulesModel* loaded_modules = EnumerateModulesModel::GetInstance();
 118   base::ListValue* list = loaded_modules->GetModuleList();
 119   base::DictionaryValue results;
 120   results.Set("moduleList", list);
 121
 122   // Add the section title and the total count for bad modules found.
 123   int confirmed_bad = loaded_modules->confirmed_bad_modules_detected();
 124   int suspected_bad = loaded_modules->suspected_bad_modules_detected();
 125   base::string16 table_title;
 126   if (!confirmed_bad && !suspected_bad) {
 127     table_title += l10n_util::GetStringFUTF16(
 128         IDS_CONFLICTS_CHECK_PAGE_TABLE_TITLE_SUFFIX_ONE,
 129             base::IntToString16(list->GetSize()));
 130   } else {
 131     table_title += l10n_util::GetStringFUTF16(
 132         IDS_CONFLICTS_CHECK_PAGE_TABLE_TITLE_SUFFIX_TWO,
 133             base::IntToString16(list->GetSize()),
 134             base::IntToString16(confirmed_bad),
 135             base::IntToString16(suspected_bad));
 136   }
 137   results.SetString("modulesTableTitle", table_title);
 138
 139   web_ui()->CallJavascriptFunction("returnModuleList", results);
 140 }
 141
 142 void ConflictsDOMHandler::Observe(int type,
 143                                   const content::NotificationSource& source,
 144                                   const content::NotificationDetails& details) {
 145   switch (type) {
 146     case chrome::NOTIFICATION_MODULE_LIST_ENUMERATED:
 147       SendModuleList();
 148       registrar_.RemoveAll();
 149       break;
 150     default:
 151       NOTREACHED();
 152       break;
 153   }
 154 }
 155
 156 }  // namespace
 157
 158 ///////////////////////////////////////////////////////////////////////////////
 159 //
 160 // ConflictsUI
 161 //
 162 ///////////////////////////////////////////////////////////////////////////////
 163
 164 ConflictsUI::ConflictsUI(content::WebUI* web_ui) : WebUIController(web_ui) {
 165   content::RecordAction(UserMetricsAction("ViewAboutConflicts"));
 166   web_ui->AddMessageHandler(new ConflictsDOMHandler());
 167
 168   // Set up the about:conflicts source.
 169   Profile* profile = Profile::FromWebUI(web_ui);
 170   content::WebUIDataSource::Add(profile, CreateConflictsUIHTMLSource());
 171 }
 172
 173 // static
 174 base::RefCountedMemory* ConflictsUI::GetFaviconResourceBytes(
 175       ui::ScaleFactor scale_factor) {
 176   return static_cast<base::RefCountedMemory*>(
 177       ResourceBundle::GetSharedInstance().LoadDataResourceBytesForScale(
 178           IDR_CONFLICT_FAVICON, scale_factor));
 179 }
 180
 181 #endif