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