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