src/chrome/browser/extensions/external_component_loader.cc

   1 // Copyright (c) 2013 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/extensions/external_component_loader.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/prefs/pref_change_registrar.h"
   9 #include "base/prefs/pref_service.h"
  10 #include "base/values.h"
  11 #include "chrome/browser/bookmarks/enhanced_bookmarks_features.h"
  12 #include "chrome/browser/browser_process.h"
  13 #include "chrome/browser/extensions/external_provider_impl.h"
  14 #include "chrome/browser/search/hotword_service_factory.h"
  15 #include "chrome/common/chrome_switches.h"
  16 #include "chrome/common/extensions/extension_constants.h"
  17 #include "chrome/common/pref_names.h"
  18 #include "components/sync_driver/pref_names.h"
  19 #include "components/user_prefs/pref_registry_syncable.h"
  20 #include "content/public/browser/browser_thread.h"
  21
  22 #if defined(ENABLE_APP_LIST)
  23 #include "ui/app_list/app_list_switches.h"
  24 #endif
  25
  26 namespace extensions {
  27
  28 namespace {
  29
  30 bool IsAppListVoiceSearchEnabled() {
  31 #if defined(ENABLE_APP_LIST)
  32   return app_list::switches::IsVoiceSearchEnabled();
  33 #else
  34   return false;
  35 #endif
  36 }
  37
  38 }  // namespace
  39
  40 ExternalComponentLoader::ExternalComponentLoader(Profile* profile)
  41     : profile_(profile) {
  42 }
  43
  44 ExternalComponentLoader::~ExternalComponentLoader() {}
  45
  46 void ExternalComponentLoader::StartLoading() {
  47   prefs_.reset(new base::DictionaryValue());
  48   std::string appId = extension_misc::kInAppPaymentsSupportAppId;
  49   prefs_->SetString(appId + ".external_update_url",
  50                     extension_urls::GetWebstoreUpdateUrl().spec());
  51
  52   if (HotwordServiceFactory::IsHotwordAllowed(profile_) ||
  53       IsAppListVoiceSearchEnabled()) {
  54     std::string hotwordId = extension_misc::kHotwordExtensionId;
  55     prefs_->SetString(hotwordId + ".external_update_url",
  56                       extension_urls::GetWebstoreUpdateUrl().spec());
  57   }
  58
  59   BookmarksExperimentState bookmarks_experiment_state_before =
  60       static_cast<BookmarksExperimentState>(profile_->GetPrefs()->GetInteger(
  61           sync_driver::prefs::kEnhancedBookmarksExperimentEnabled));
  62   if (bookmarks_experiment_state_before == kBookmarksExperimentEnabled) {
  63     // kEnhancedBookmarksExperiment flag could have values "", "1" and "0".
  64     // "0" - user opted out.
  65     if (CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
  66             switches::kEnhancedBookmarksExperiment) != "0") {
  67       // Experiment enabled.
  68       std::string ext_id = profile_->GetPrefs()->GetString(
  69           sync_driver::prefs::kEnhancedBookmarksExtensionId);
  70       if (!ext_id.empty()) {
  71         prefs_->SetString(ext_id + ".external_update_url",
  72                           extension_urls::GetWebstoreUpdateUrl().spec());
  73       }
  74     } else {
  75       // Experiment enabled but user opted out.
  76       profile_->GetPrefs()->SetInteger(
  77           sync_driver::prefs::kEnhancedBookmarksExperimentEnabled,
  78           kBookmarksExperimentEnabledUserOptOut);
  79     }
  80   } else if (bookmarks_experiment_state_before ==
  81              kBookmarksExperimentEnabledUserOptOut) {
  82     if (CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
  83             switches::kEnhancedBookmarksExperiment) != "0") {
  84       // User opted in again.
  85       profile_->GetPrefs()->SetInteger(
  86           sync_driver::prefs::kEnhancedBookmarksExperimentEnabled,
  87           kBookmarksExperimentEnabled);
  88       std::string ext_id = profile_->GetPrefs()->GetString(
  89           sync_driver::prefs::kEnhancedBookmarksExtensionId);
  90       if (!ext_id.empty()) {
  91         prefs_->SetString(ext_id + ".external_update_url",
  92                           extension_urls::GetWebstoreUpdateUrl().spec());
  93       }
  94     }
  95   } else {
  96     // Experiment disabled.
  97     profile_->GetPrefs()->ClearPref(
  98         sync_driver::prefs::kEnhancedBookmarksExperimentEnabled);
  99     profile_->GetPrefs()->ClearPref(
 100         sync_driver::prefs::kEnhancedBookmarksExtensionId);
 101   }
 102   BookmarksExperimentState bookmarks_experiment_state =
 103       static_cast<BookmarksExperimentState>(profile_->GetPrefs()->GetInteger(
 104           sync_driver::prefs::kEnhancedBookmarksExperimentEnabled));
 105   if (bookmarks_experiment_state_before != bookmarks_experiment_state) {
 106     UpdateBookmarksExperiment(g_browser_process->local_state(),
 107                               bookmarks_experiment_state);
 108   }
 109
 110   LoadFinished();
 111 }
 112
 113 }  // namespace extensions