Added the 'Translation Logs' tab to chrome://translate-internals/

chrome/browser/translate/translate_manager.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/translate/translate_manager.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/json/json_reader.h"
 #include "base/memory/singleton.h"
 #include "base/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/strings/string_split.h"
+#include "base/time.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/infobars/infobar_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/tab_contents/language_state.h"
 #include "chrome/browser/tab_contents/tab_util.h"
 #include "chrome/browser/translate/page_translated_details.h"
 #include "chrome/browser/translate/translate_infobar_delegate.h"
 #include "chrome/browser/translate/translate_prefs.h"
 #include "chrome/browser/translate/translate_tab_helper.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_switches.h"
+#include "chrome/common/language_detection_details.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/translate_errors.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_details.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_source.h"
@@ skipping 311 matching lines @@
       MessageLoop::current()->PostTask(FROM_HERE,
           base::Bind(
               &TranslateManager::InitiateTranslationPosted,
               weak_method_factory_.GetWeakPtr(),
               controller->GetWebContents()->GetRenderProcessHost()->GetID(),
               controller->GetWebContents()->GetRenderViewHost()->GetRoutingID(),
               translate_tab_helper->language_state().original_language()));
       break;
     }
     case chrome::NOTIFICATION_TAB_LANGUAGE_DETERMINED: {
+      const LanguageDetectionDetails* lang_det_details =
+          content::Details<const LanguageDetectionDetails>(details).ptr();
+      NotifyLanguageDetection(*lang_det_details);
+
       WebContents* tab = content::Source<WebContents>(source).ptr();
       // We may get this notifications multiple times.  Make sure to translate
       // only once.
       TranslateTabHelper* translate_tab_helper =
           TranslateTabHelper::FromWebContents(tab);
       if (!translate_tab_helper)
         return;
 
       LanguageState& language_state = translate_tab_helper->language_state();
       if (language_state.page_translatable() &&
           !language_state.translation_pending() &&
           !language_state.translation_declined() &&
           !language_state.IsPageTranslated()) {
-        std::string language = *(content::Details<std::string>(details).ptr());
+        std::string language = lang_det_details->adopted_language;
         InitiateTranslation(tab, language);
       }
       break;
     }
     case chrome::NOTIFICATION_PAGE_TRANSLATED: {
       // Only add translate infobar if it doesn't exist; if it already exists,
       // just update the state, the actual infobar would have received the same
       //  notification and update the visual display accordingly.
       WebContents* tab = content::Source<WebContents>(source).ptr();
       PageTranslatedDetails* page_translated_details =
@@ skipping 101 matching lines @@
     if (!error) {
       std::string data;
       source->GetResponseAsString(&data);
       SetSupportedLanguages(data);
     } else {
       VLOG(9) << "Failed to Fetch languages from: " << kLanguageListFetchURL;
     }
   }
 }
 
+void TranslateManager::AddObserver(Observer* obs) {
+  observer_list_.AddObserver(obs);
+}
+
+void TranslateManager::RemoveObserver(Observer* obs) {
+  observer_list_.RemoveObserver(obs);
+}
+
+void TranslateManager::NotifyLanguageDetection(
+    const LanguageDetectionDetails& details) {
+  FOR_EACH_OBSERVER(Observer, observer_list_, OnLanguageDetection(details));
+}
+
+
 TranslateManager::TranslateManager()
     : weak_method_factory_(this),
       translate_script_expiration_delay_(
           base::TimeDelta::FromDays(kTranslateScriptExpirationDelayDays)) {
   notification_registrar_.Add(this, content::NOTIFICATION_NAV_ENTRY_COMMITTED,
                               content::NotificationService::AllSources());
   notification_registrar_.Add(this,
                               chrome::NOTIFICATION_TAB_LANGUAGE_DETERMINED,
                               content::NotificationService::AllSources());
   notification_registrar_.Add(this, chrome::NOTIFICATION_PAGE_TRANSLATED,
@@ skipping 193 matching lines @@
 void TranslateManager::PageTranslated(WebContents* web_contents,
                                       PageTranslatedDetails* details) {
   if ((details->error_type == TranslateErrors::NONE) &&
       !IsSupportedLanguage(details->source_language)) {
     // TODO(jcivelli): http://crbug.com/9390 We should change the "after
     //                 translate" infobar to support unknown as the original
     //                 language.
     UMA_HISTOGRAM_COUNTS("Translate.ServerReportedUnsupportedLanguage", 1);
     details->error_type = TranslateErrors::UNSUPPORTED_LANGUAGE;
   }
+
   Profile* profile =
       Profile::FromBrowserContext(web_contents->GetBrowserContext());
   PrefService* prefs = profile->GetPrefs();
   TranslateInfoBarDelegate::Create(
       InfoBarService::FromWebContents(web_contents), true,
       (details->error_type == TranslateErrors::NONE) ?
           TranslateInfoBarDelegate::AFTER_TRANSLATE :
           TranslateInfoBarDelegate::TRANSLATION_ERROR,
       details->error_type, prefs, ShortcutConfig(), details->source_language,
       details->target_language);
@@ skipping 180 matching lines @@
   // reason so we are more aggressive showing the shortcuts for never translate.
   #if defined(OS_ANDROID)
   config.never_translate_min_count = 1;
   #else
   config.never_translate_min_count = 3;
   #endif  // defined(OS_ANDROID)
 
   config.always_translate_min_count = 3;
   return config;
 }