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      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 (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
    137