src/chrome/browser/ui/webui/translate_internals/translate_internals_handler.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_handler.h"
   6
   7 #include <map>
   8 #include <vector>
   9
  10 #include "base/bind.h"
  11 #include "base/bind_helpers.h"
  12 #include "base/prefs/pref_service.h"
  13 #include "base/values.h"
  14 #include "chrome/browser/profiles/profile.h"
  15 #include "chrome/browser/translate/translate_error_details.h"
  16 #include "chrome/browser/translate/translate_event_details.h"
  17 #include "chrome/browser/translate/translate_prefs.h"
  18 #include "chrome/common/pref_names.h"
  19 #include "chrome/common/translate/language_detection_details.h"
  20 #include "content/public/browser/web_contents.h"
  21 #include "content/public/browser/web_ui.h"
  22
  23 TranslateInternalsHandler::TranslateInternalsHandler() {
  24   TranslateManager::GetInstance()->AddObserver(this);
  25 }
  26
  27 TranslateInternalsHandler::~TranslateInternalsHandler() {
  28   TranslateManager::GetInstance()->RemoveObserver(this);
  29 }
  30
  31 void TranslateInternalsHandler::RegisterMessages() {
  32   web_ui()->RegisterMessageCallback("removePrefItem", base::Bind(
  33       &TranslateInternalsHandler::OnRemovePrefItem, base::Unretained(this)));
  34   web_ui()->RegisterMessageCallback("requestInfo", base::Bind(
  35       &TranslateInternalsHandler::OnRequestInfo, base::Unretained(this)));
  36 }
  37
  38 void TranslateInternalsHandler::OnLanguageDetection(
  39     const LanguageDetectionDetails& details) {
  40   if (!TranslateManager::IsTranslatableURL(details.url))
  41     return;
  42
  43   base::DictionaryValue dict;
  44   dict.Set("time",
  45            new base::FundamentalValue(details.time.ToJsTime()));
  46   dict.Set("url",
  47            new base::StringValue(details.url.spec()));
  48   dict.Set("content_language",
  49            new base::StringValue(details.content_language));
  50   dict.Set("cld_language",
  51            new base::StringValue(details.cld_language));
  52   dict.Set("is_cld_reliable",
  53            new base::FundamentalValue(details.is_cld_reliable));
  54   dict.Set("html_root_language",
  55            new base::StringValue(details.html_root_language));
  56   dict.Set("adopted_language",
  57            new base::StringValue(details.adopted_language));
  58   dict.Set("content", new base::StringValue(details.contents));
  59   SendMessageToJs("languageDetectionInfoAdded", dict);
  60 }
  61
  62 void TranslateInternalsHandler::OnTranslateError(
  63     const TranslateErrorDetails& details) {
  64   base::DictionaryValue dict;
  65   dict.Set("time",
  66            new base::FundamentalValue(details.time.ToJsTime()));
  67   dict.Set("url",
  68            new base::StringValue(details.url.spec()));
  69   dict.Set("error",
  70            new base::FundamentalValue(details.error));
  71   SendMessageToJs("translateErrorDetailsAdded", dict);
  72 }
  73
  74 void TranslateInternalsHandler::OnTranslateEvent(
  75     const TranslateEventDetails& details) {
  76   base::DictionaryValue dict;
  77   dict.Set("time", new base::FundamentalValue(details.time.ToJsTime()));
  78   dict.Set("filename", new base::StringValue(details.filename));
  79   dict.Set("line", new base::FundamentalValue(details.line));
  80   dict.Set("message", new base::StringValue(details.message));
  81   SendMessageToJs("translateEventDetailsAdded", dict);
  82 }
  83
  84 void TranslateInternalsHandler::OnRemovePrefItem(const base::ListValue* args) {
  85   content::WebContents* web_contents = web_ui()->GetWebContents();
  86   Profile* profile =
  87       Profile::FromBrowserContext(web_contents->GetBrowserContext());
  88   PrefService* prefs = profile->GetOriginalProfile()->GetPrefs();
  89   TranslatePrefs translate_prefs(prefs);
  90
  91   std::string pref_name;
  92   if (!args->GetString(0, &pref_name))
  93     return;
  94
  95   if (pref_name == "blocked_languages") {
  96     std::string language;
  97     if (!args->GetString(1, &language))
  98       return;
  99     translate_prefs.UnblockLanguage(language);
 100   } else if (pref_name == "language_blacklist") {
 101     std::string language;
 102     if (!args->GetString(1, &language))
 103       return;
 104     translate_prefs.RemoveLanguageFromLegacyBlacklist(language);
 105   } else if (pref_name == "site_blacklist") {
 106     std::string site;
 107     if (!args->GetString(1, &site))
 108       return;
 109     translate_prefs.RemoveSiteFromBlacklist(site);
 110   } else if (pref_name == "whitelists") {
 111     std::string from, to;
 112     if (!args->GetString(1, &from))
 113       return;
 114     if (!args->GetString(2, &to))
 115       return;
 116     translate_prefs.RemoveLanguagePairFromWhitelist(from, to);
 117   } else {
 118     return;
 119   }
 120
 121   SendPrefsToJs();
 122 }
 123
 124 void TranslateInternalsHandler::OnRequestInfo(const base::ListValue* /*args*/) {
 125   SendPrefsToJs();
 126   SendSupportedLanguagesToJs();
 127 }
 128
 129 void TranslateInternalsHandler::SendMessageToJs(const std::string& message,
 130                                                 const base::Value& value) {
 131   const char func[] = "cr.translateInternals.messageHandler";
 132   base::StringValue message_data(message);
 133   web_ui()->CallJavascriptFunction(func, message_data, value);
 134 }
 135
 136 void TranslateInternalsHandler::SendPrefsToJs() {
 137   content::WebContents* web_contents = web_ui()->GetWebContents();
 138   Profile* profile =
 139       Profile::FromBrowserContext(web_contents->GetBrowserContext());
 140   PrefService* prefs = profile->GetOriginalProfile()->GetPrefs();
 141
 142   base::DictionaryValue dict;
 143
 144   std::vector<std::string> keys;
 145   keys.push_back(prefs::kEnableTranslate);
 146
 147   keys.push_back(TranslatePrefs::kPrefTranslateBlockedLanguages);
 148   keys.push_back(TranslatePrefs::kPrefTranslateLanguageBlacklist);
 149   keys.push_back(TranslatePrefs::kPrefTranslateSiteBlacklist);
 150   keys.push_back(TranslatePrefs::kPrefTranslateWhitelists);
 151   keys.push_back(TranslatePrefs::kPrefTranslateDeniedCount);
 152   keys.push_back(TranslatePrefs::kPrefTranslateAcceptedCount);
 153
 154   for (std::vector<std::string>::const_iterator it = keys.begin();
 155        it != keys.end(); ++it) {
 156     const std::string& key = *it;
 157     const PrefService::Preference* pref = prefs->FindPreference(key.c_str());
 158     if (pref)
 159       dict.Set(key, pref->GetValue()->DeepCopy());
 160   }
 161
 162   SendMessageToJs("prefsUpdated", dict);
 163 }
 164
 165 void TranslateInternalsHandler::SendSupportedLanguagesToJs() {
 166   base::DictionaryValue dict;
 167
 168   std::vector<std::string> languages;
 169   TranslateManager::GetSupportedLanguages(&languages);
 170   base::Time last_updated =
 171       TranslateManager::GetSupportedLanguagesLastUpdated();
 172
 173   ListValue* languages_list = new ListValue();
 174   ListValue* alpha_languages_list = new ListValue();
 175   for (std::vector<std::string>::iterator it = languages.begin();
 176        it != languages.end(); ++it) {
 177     const std::string& lang = *it;
 178     languages_list->Append(new StringValue(lang));
 179     if (TranslateManager::IsAlphaLanguage(lang))
 180       alpha_languages_list->Append(new StringValue(lang));
 181   }
 182
 183   dict.Set("languages", languages_list);
 184   dict.Set("alpha_languages", alpha_languages_list);
 185   dict.Set("last_updated",
 186            new base::FundamentalValue(last_updated.ToJsTime()));
 187   SendMessageToJs("supportedLanguagesUpdated", dict);
 188 }