chrome/browser/translate/translate_service.cc

   1 // Copyright 2014 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/translate/translate_service.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/logging.h"
   9 #include "base/metrics/field_trial.h"
  10 #include "base/prefs/pref_service.h"
  11 #include "base/strings/string_split.h"
  12 #include "base/strings/string_util.h"
  13 #include "chrome/browser/browser_process.h"
  14 #include "chrome/common/chrome_switches.h"
  15 #include "chrome/common/pref_names.h"
  16 #include "components/translate/core/browser/translate_download_manager.h"
  17 #include "components/translate/core/browser/translate_manager.h"
  18 #include "content/public/common/url_constants.h"
  19 #include "url/gurl.h"
  20
  21 #if defined(OS_CHROMEOS)
  22 #include "chrome/browser/chromeos/file_manager/app_id.h"
  23 #include "extensions/common/constants.h"
  24 #endif
  25
  26 namespace {
  27 // The singleton instance of TranslateService.
  28 TranslateService* g_translate_service = NULL;
  29 }
  30
  31 TranslateService::TranslateService()
  32     : resource_request_allowed_notifier_(
  33           g_browser_process->local_state(),
  34           switches::kDisableBackgroundNetworking) {
  35   resource_request_allowed_notifier_.Init(this);
  36 }
  37
  38 TranslateService::~TranslateService() {}
  39
  40 // static
  41 void TranslateService::Initialize() {
  42   if (g_translate_service)
  43     return;
  44
  45   g_translate_service = new TranslateService;
  46   // Initialize the allowed state for resource requests.
  47   g_translate_service->OnResourceRequestsAllowed();
  48   translate::TranslateDownloadManager* download_manager =
  49       translate::TranslateDownloadManager::GetInstance();
  50   download_manager->set_request_context(
  51       g_browser_process->system_request_context());
  52   download_manager->set_application_locale(
  53       g_browser_process->GetApplicationLocale());
  54 }
  55
  56 // static
  57 void TranslateService::Shutdown(bool cleanup_pending_fetcher) {
  58   translate::TranslateDownloadManager* download_manager =
  59       translate::TranslateDownloadManager::GetInstance();
  60   if (cleanup_pending_fetcher) {
  61     download_manager->Shutdown();
  62   } else {
  63     // This path is only used by browser tests.
  64     download_manager->set_request_context(NULL);
  65   }
  66 }
  67
  68 // static
  69 void TranslateService::InitializeForTesting() {
  70   if (!g_translate_service) {
  71     TranslateService::Initialize();
  72     translate::TranslateManager::SetIgnoreMissingKeyForTesting(true);
  73   } else {
  74     translate::TranslateDownloadManager::GetInstance()->ResetForTesting();
  75     g_translate_service->OnResourceRequestsAllowed();
  76   }
  77 }
  78
  79 // static
  80 void TranslateService::ShutdownForTesting() {
  81   translate::TranslateDownloadManager::GetInstance()->Shutdown();
  82 }
  83
  84 void TranslateService::OnResourceRequestsAllowed() {
  85   translate::TranslateLanguageList* language_list =
  86       translate::TranslateDownloadManager::GetInstance()->language_list();
  87   if (!language_list) {
  88     NOTREACHED();
  89     return;
  90   }
  91
  92   language_list->SetResourceRequestsAllowed(
  93       resource_request_allowed_notifier_.ResourceRequestsAllowed());
  94 }
  95
  96 // static
  97 bool TranslateService::IsTranslateBubbleEnabled() {
  98 #if defined(USE_AURA)
  99   return true;
 100 #elif defined(OS_MACOSX)
 101   const std::string group_name =
 102       base::FieldTrialList::FindFullName("TranslateNewUX");
 103   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
 104           switches::kDisableTranslateNewUX))
 105     return false;
 106   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
 107           switches::kEnableTranslateNewUX))
 108     return true;
 109   return base::StartsWith(group_name, "Enabled", base::CompareCase::SENSITIVE);
 110 #else
 111   // The bubble UX is not implemented on other platforms.
 112   return false;
 113 #endif
 114 }
 115
 116 // static
 117 std::string TranslateService::GetTargetLanguage(PrefService* prefs) {
 118   std::vector<std::string> accept_languages_list = base::SplitString(
 119       prefs->GetString(prefs::kAcceptLanguages), ",",
 120       base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
 121   return translate::TranslateManager::GetTargetLanguage(accept_languages_list);
 122 }
 123
 124 // static
 125 bool TranslateService::IsTranslatableURL(const GURL& url) {
 126   // A URLs is translatable unless it is one of the following:
 127   // - empty (can happen for popups created with window.open(""))
 128   // - an internal URL (chrome:// and others)
 129   // - the devtools (which is considered UI)
 130   // - Chrome OS file manager extension
 131   // - an FTP page (as FTP pages tend to have long lists of filenames that may
 132   //   confuse the CLD)
 133   return !url.is_empty() && !url.SchemeIs(content::kChromeUIScheme) &&
 134          !url.SchemeIs(content::kChromeDevToolsScheme) &&
 135 #if defined(OS_CHROMEOS)
 136          !(url.SchemeIs(extensions::kExtensionScheme) &&
 137            url.DomainIs(file_manager::kFileManagerAppId)) &&
 138 #endif
 139          !url.SchemeIs(url::kFtpScheme);
 140 }