components/translate/core/browser/translate_download_manager.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 "components/translate/core/browser/translate_download_manager.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/logging.h"
   9 #include "base/memory/singleton.h"
  10 #include "base/prefs/pref_service.h"
  11 #include "components/translate/core/common/translate_pref_names.h"
  12 #include "components/translate/core/common/translate_switches.h"
  13
  14 namespace translate {
  15
  16 // static
  17 TranslateDownloadManager* TranslateDownloadManager::GetInstance() {
  18   return Singleton<TranslateDownloadManager>::get();
  19 }
  20
  21 TranslateDownloadManager::TranslateDownloadManager()
  22     : language_list_(new TranslateLanguageList),
  23       script_(new TranslateScript) {}
  24
  25 TranslateDownloadManager::~TranslateDownloadManager() {}
  26
  27 void TranslateDownloadManager::Shutdown() {
  28   language_list_.reset();
  29   script_.reset();
  30   request_context_ = NULL;
  31 }
  32
  33 // static
  34 void TranslateDownloadManager::RequestLanguageList() {
  35   TranslateLanguageList* language_list = GetInstance()->language_list();
  36   if (!language_list) {
  37     NOTREACHED();
  38     return;
  39   }
  40
  41   language_list->RequestLanguageList();
  42 }
  43
  44 // static
  45 void TranslateDownloadManager::RequestLanguageList(PrefService* prefs) {
  46   // We don't want to do this when translate is disabled.
  47   DCHECK(prefs != NULL);
  48   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
  49           translate::switches::kDisableTranslate) ||
  50       !prefs->GetBoolean(prefs::kEnableTranslate)) {
  51     return;
  52   }
  53
  54   RequestLanguageList();
  55 }
  56
  57 // static
  58 void TranslateDownloadManager::GetSupportedLanguages(
  59     std::vector<std::string>* languages) {
  60   TranslateLanguageList* language_list = GetInstance()->language_list();
  61   if (!language_list) {
  62     NOTREACHED();
  63     return;
  64   }
  65
  66   language_list->GetSupportedLanguages(languages);
  67 }
  68
  69 // static
  70 base::Time TranslateDownloadManager::GetSupportedLanguagesLastUpdated() {
  71   TranslateLanguageList* language_list = GetInstance()->language_list();
  72   if (!language_list) {
  73     NOTREACHED();
  74     return base::Time();
  75   }
  76
  77   return language_list->last_updated();
  78 }
  79
  80 // static
  81 std::string TranslateDownloadManager::GetLanguageCode(
  82     const std::string& language) {
  83   TranslateLanguageList* language_list = GetInstance()->language_list();
  84   if (!language_list) {
  85     NOTREACHED();
  86     return language;
  87   }
  88
  89   return language_list->GetLanguageCode(language);
  90 }
  91
  92 // static
  93 bool TranslateDownloadManager::IsSupportedLanguage(
  94     const std::string& language) {
  95   TranslateLanguageList* language_list = GetInstance()->language_list();
  96   if (!language_list) {
  97     NOTREACHED();
  98     return false;
  99   }
 100
 101   return language_list->IsSupportedLanguage(language);
 102 }
 103
 104 // static
 105 bool TranslateDownloadManager::IsAlphaLanguage(const std::string& language) {
 106   TranslateLanguageList* language_list = GetInstance()->language_list();
 107   if (!language_list) {
 108     NOTREACHED();
 109     return false;
 110   }
 111
 112   return language_list->IsAlphaLanguage(language);
 113 }
 114
 115 void TranslateDownloadManager::ClearTranslateScriptForTesting() {
 116   if (script_.get() == NULL) {
 117     NOTREACHED();
 118     return;
 119   }
 120   script_->Clear();
 121 }
 122
 123 void TranslateDownloadManager::ResetForTesting() {
 124   language_list_.reset(new TranslateLanguageList);
 125   script_.reset(new TranslateScript);
 126 }
 127
 128 void TranslateDownloadManager::SetTranslateScriptExpirationDelay(int delay_ms) {
 129   if (script_.get() == NULL) {
 130     NOTREACHED();
 131     return;
 132   }
 133   script_->set_expiration_delay(delay_ms);
 134 }
 135
 136 }  // namespace translate