chrome/browser/ui/webui/chromeos/system_info_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/chromeos/system_info_ui.h"
   6
   7 #include "base/bind.h"
   8 #include "base/bind_helpers.h"
   9 #include "base/memory/ref_counted_memory.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/memory/weak_ptr.h"
  12 #include "base/message_loop/message_loop.h"
  13 #include "base/path_service.h"
  14 #include "base/strings/string_piece.h"
  15 #include "base/strings/string_util.h"
  16 #include "base/strings/utf_string_conversions.h"
  17 #include "base/synchronization/waitable_event.h"
  18 #include "base/threading/thread.h"
  19 #include "base/time/time.h"
  20 #include "base/values.h"
  21 #include "chrome/browser/chromeos/system_logs/about_system_logs_fetcher.h"
  22 #include "chrome/browser/profiles/profile.h"
  23 #include "chrome/common/chrome_paths.h"
  24 #include "chrome/common/url_constants.h"
  25 #include "content/public/browser/url_data_source.h"
  26 #include "content/public/browser/web_contents.h"
  27 #include "content/public/browser/web_ui.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/locale_settings.h"
  33 #include "net/base/directory_lister.h"
  34 #include "net/base/escape.h"
  35 #include "ui/base/l10n/l10n_util.h"
  36 #include "ui/base/resource/resource_bundle.h"
  37 #include "ui/base/webui/jstemplate_builder.h"
  38 #include "ui/base/webui/web_ui_util.h"
  39
  40 using content::WebContents;
  41 using content::WebUIMessageHandler;
  42
  43 namespace chromeos {
  44
  45 class SystemInfoUIHTMLSource : public content::URLDataSource{
  46  public:
  47   SystemInfoUIHTMLSource();
  48
  49   // content::URLDataSource implementation.
  50   virtual std::string GetSource() const OVERRIDE;
  51   virtual void StartDataRequest(
  52       const std::string& path,
  53       int render_process_id,
  54       int render_view_id,
  55       const content::URLDataSource::GotDataCallback& callback) OVERRIDE;
  56   virtual std::string GetMimeType(const std::string&) const OVERRIDE {
  57     return "text/html";
  58   }
  59   virtual bool ShouldAddContentSecurityPolicy() const OVERRIDE {
  60     return false;
  61   }
  62
  63  private:
  64   virtual ~SystemInfoUIHTMLSource() {}
  65
  66   void SysInfoComplete(scoped_ptr<SystemLogsResponse> response);
  67   void RequestComplete();
  68   void WaitForData();
  69
  70   // Stored data from StartDataRequest()
  71   std::string path_;
  72   content::URLDataSource::GotDataCallback callback_;
  73
  74   scoped_ptr<SystemLogsResponse> response_;
  75   base::WeakPtrFactory<SystemInfoUIHTMLSource> weak_ptr_factory_;
  76   DISALLOW_COPY_AND_ASSIGN(SystemInfoUIHTMLSource);
  77 };
  78
  79 // The handler for Javascript messages related to the "system" view.
  80 class SystemInfoHandler : public WebUIMessageHandler,
  81                           public base::SupportsWeakPtr<SystemInfoHandler> {
  82  public:
  83   SystemInfoHandler();
  84   virtual ~SystemInfoHandler();
  85
  86   // WebUIMessageHandler implementation.
  87   virtual void RegisterMessages() OVERRIDE;
  88
  89  private:
  90   DISALLOW_COPY_AND_ASSIGN(SystemInfoHandler);
  91 };
  92
  93 ////////////////////////////////////////////////////////////////////////////////
  94 //
  95 // SystemInfoUIHTMLSource
  96 //
  97 ////////////////////////////////////////////////////////////////////////////////
  98
  99 SystemInfoUIHTMLSource::SystemInfoUIHTMLSource() : weak_ptr_factory_(this) {}
 100
 101 std::string SystemInfoUIHTMLSource::GetSource() const {
 102   return chrome::kChromeUISystemInfoHost;
 103 }
 104
 105 void SystemInfoUIHTMLSource::StartDataRequest(
 106     const std::string& path,
 107     int render_process_id,
 108     int render_view_id,
 109     const content::URLDataSource::GotDataCallback& callback) {
 110   path_ = path;
 111   callback_ = callback;
 112
 113   AboutSystemLogsFetcher* fetcher = new AboutSystemLogsFetcher();
 114   fetcher->Fetch(base::Bind(&SystemInfoUIHTMLSource::SysInfoComplete,
 115                             weak_ptr_factory_.GetWeakPtr()));
 116 }
 117
 118
 119 void SystemInfoUIHTMLSource::SysInfoComplete(
 120     scoped_ptr<SystemLogsResponse> sys_info) {
 121   response_ = sys_info.Pass();
 122   RequestComplete();
 123 }
 124
 125 void SystemInfoUIHTMLSource::RequestComplete() {
 126   DictionaryValue strings;
 127   strings.SetString("title", l10n_util::GetStringUTF16(IDS_ABOUT_SYS_TITLE));
 128   strings.SetString("description",
 129                     l10n_util::GetStringUTF16(IDS_ABOUT_SYS_DESC));
 130   strings.SetString("tableTitle",
 131                     l10n_util::GetStringUTF16(IDS_ABOUT_SYS_TABLE_TITLE));
 132   strings.SetString(
 133       "logFileTableTitle",
 134       l10n_util::GetStringUTF16(IDS_ABOUT_SYS_LOG_FILE_TABLE_TITLE));
 135   strings.SetString("expandAllBtn",
 136                     l10n_util::GetStringUTF16(IDS_ABOUT_SYS_EXPAND_ALL));
 137   strings.SetString("collapseAllBtn",
 138                     l10n_util::GetStringUTF16(IDS_ABOUT_SYS_COLLAPSE_ALL));
 139   strings.SetString("expandBtn",
 140                     l10n_util::GetStringUTF16(IDS_ABOUT_SYS_EXPAND));
 141   strings.SetString("collapseBtn",
 142                     l10n_util::GetStringUTF16(IDS_ABOUT_SYS_COLLAPSE));
 143   strings.SetString("parseError",
 144                     l10n_util::GetStringUTF16(IDS_ABOUT_SYS_PARSE_ERROR));
 145   webui::SetFontAndTextDirection(&strings);
 146   if (response_.get()) {
 147     ListValue* details = new ListValue();
 148     strings.Set("details", details);
 149     for (SystemLogsResponse::const_iterator it = response_->begin();
 150          it != response_->end();
 151          ++it) {
 152       DictionaryValue* val = new DictionaryValue;
 153       val->SetString("statName", it->first);
 154       val->SetString("statValue", it->second);
 155       details->Append(val);
 156     }
 157   }
 158   static const base::StringPiece systeminfo_html(
 159       ResourceBundle::GetSharedInstance().GetRawDataResource(
 160           IDR_ABOUT_SYS_HTML));
 161   std::string full_html = webui::GetTemplatesHtml(
 162       systeminfo_html, &strings, "t" /* template root node id */);
 163   callback_.Run(base::RefCountedString::TakeString(&full_html));
 164 }
 165
 166 ////////////////////////////////////////////////////////////////////////////////
 167 //
 168 // SystemInfoHandler
 169 //
 170 ////////////////////////////////////////////////////////////////////////////////
 171 SystemInfoHandler::SystemInfoHandler() {
 172 }
 173
 174 SystemInfoHandler::~SystemInfoHandler() {
 175 }
 176
 177 void SystemInfoHandler::RegisterMessages() {
 178   // TODO(stevenjb): add message registration, callbacks...
 179 }
 180
 181 ////////////////////////////////////////////////////////////////////////////////
 182 //
 183 // SystemInfoUI
 184 //
 185 ////////////////////////////////////////////////////////////////////////////////
 186
 187 SystemInfoUI::SystemInfoUI(content::WebUI* web_ui) : WebUIController(web_ui) {
 188   SystemInfoHandler* handler = new SystemInfoHandler();
 189   web_ui->AddMessageHandler(handler);
 190   SystemInfoUIHTMLSource* html_source = new SystemInfoUIHTMLSource();
 191
 192   // Set up the chrome://system/ source.
 193   Profile* profile = Profile::FromWebUI(web_ui);
 194   content::URLDataSource::Add(profile, html_source);
 195 }
 196
 197 }  // namespace chromeos