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
CreateConflictsUIHTMLSource()43 content::WebUIDataSource* CreateConflictsUIHTMLSource() {
44 content::WebUIDataSource* source =
45 content::WebUIDataSource::Create(chrome::kChromeUIConflictsHost);
46
47 source->SetUseJsonJSFormatV2();
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:
ConflictsDOMHandler()82 ConflictsDOMHandler() {}
~ConflictsDOMHandler()83 virtual ~ConflictsDOMHandler() {}
84
85 // WebUIMessageHandler implementation.
86 virtual void RegisterMessages();
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);
97
98 content::NotificationRegistrar registrar_;
99
100 DISALLOW_COPY_AND_ASSIGN(ConflictsDOMHandler);
101 };
102
RegisterMessages()103 void ConflictsDOMHandler::RegisterMessages() {
104 web_ui()->RegisterMessageCallback("requestModuleList",
105 base::Bind(&ConflictsDOMHandler::HandleRequestModuleList,
106 base::Unretained(this)));
107 }
108
HandleRequestModuleList(const base::ListValue * args)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
SendModuleList()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
Observe(int type,const content::NotificationSource & source,const content::NotificationDetails & details)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
ConflictsUI(content::WebUI * web_ui)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
GetFaviconResourceBytes(ui::ScaleFactor scale_factor)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
182