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