chrome/browser/ui/webui/translate_internals/translate_internals_ui.cc

   1 // Copyright 2013 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/translate_internals/translate_internals_ui.h"
   6
   7 #include <string>
   8 #include <vector>
   9
  10 #include "base/command_line.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/values.h"
  13 #include "chrome/browser/browser_process.h"
  14 #include "chrome/browser/profiles/profile.h"
  15 #include "chrome/browser/ui/webui/translate_internals/translate_internals_handler.h"
  16 #include "chrome/common/chrome_switches.h"
  17 #include "chrome/common/url_constants.h"
  18 #include "components/translate/content/common/cld_data_source.h"
  19 #include "content/public/browser/web_contents.h"
  20 #include "content/public/browser/web_ui.h"
  21 #include "content/public/browser/web_ui_data_source.h"
  22 #include "grit/translate_internals_resources.h"
  23 #include "ui/base/l10n/l10n_util.h"
  24
  25 namespace {
  26
  27 // Sets the languages to |dict|. Each key is a language code and each value is
  28 // a language name in the locale.
  29 void GetLanguages(base::DictionaryValue* dict) {
  30   DCHECK(dict);
  31
  32   const std::string app_locale = g_browser_process->GetApplicationLocale();
  33   std::vector<std::string> language_codes;
  34   l10n_util::GetAcceptLanguagesForLocale(app_locale, &language_codes);
  35
  36   for (std::vector<std::string>::iterator it = language_codes.begin();
  37        it != language_codes.end(); ++it) {
  38     const std::string& lang_code = *it;
  39     base::string16 lang_name =
  40         l10n_util::GetDisplayNameForLocale(lang_code, app_locale, false);
  41     dict->SetString(lang_code, lang_name);
  42   }
  43 }
  44
  45 content::WebUIDataSource* CreateTranslateInternalsHTMLSource() {
  46   content::WebUIDataSource* source =
  47       content::WebUIDataSource::Create(chrome::kChromeUITranslateInternalsHost);
  48
  49   source->SetDefaultResource(IDR_TRANSLATE_INTERNALS_TRANSLATE_INTERNALS_HTML);
  50   source->SetJsonPath("strings.js");
  51   source->AddResourcePath("translate_internals.js",
  52                           IDR_TRANSLATE_INTERNALS_TRANSLATE_INTERNALS_JS);
  53
  54   base::DictionaryValue langs;
  55   GetLanguages(&langs);
  56   for (base::DictionaryValue::Iterator it(langs); !it.IsAtEnd(); it.Advance()) {
  57     std::string key = "language-" + it.key();
  58     std::string value;
  59     it.value().GetAsString(&value);
  60     source->AddString(key, value);
  61   }
  62
  63   std::string cld_version = "";
  64   std::string cld_data_source = "";
  65   // The version strings are hardcoded here to avoid linking with the CLD
  66   // library, see http://crbug.com/297777.
  67 #if CLD_VERSION==1
  68   cld_version = "1.6";
  69   cld_data_source = "static"; // CLD1.x does not support dynamic data loading
  70 #elif CLD_VERSION==2
  71   cld_version = "2";
  72   cld_data_source = translate::CldDataSource::Get()->GetName();
  73 #else
  74   NOTREACHED();
  75 #endif
  76   source->AddString("cld-version", cld_version);
  77   source->AddString("cld-data-source", cld_data_source);
  78
  79   return source;
  80 }
  81
  82 }  // namespace
  83
  84 TranslateInternalsUI::TranslateInternalsUI(content::WebUI* web_ui)
  85     : WebUIController(web_ui) {
  86   web_ui->AddMessageHandler(new TranslateInternalsHandler);
  87
  88   Profile* profile = Profile::FromWebUI(web_ui);
  89   content::WebUIDataSource::Add(profile, CreateTranslateInternalsHTMLSource());
  90 }