chrome/browser/chrome_resource_bundle_helper.cc

   1 // Copyright 2018 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/chrome_resource_bundle_helper.h"
   6
   7 #include "base/files/file_util.h"
   8 #include "base/path_service.h"
   9 #include "base/strings/utf_string_conversions.h"
  10 #include "base/trace_event/trace_event.h"
  11 #include "build/build_config.h"
  12 #include "chrome/browser/first_run/first_run.h"
  13 #include "chrome/browser/metrics/chrome_feature_list_creator.h"
  14 #include "chrome/browser/prefs/chrome_command_line_pref_store.h"
  15 #include "chrome/browser/prefs/chrome_pref_service_factory.h"
  16 #include "chrome/common/chrome_paths.h"
  17 #include "chrome/common/chrome_switches.h"
  18 #include "chrome/installer/util/google_update_settings.h"
  19 #include "components/language/core/browser/pref_names.h"
  20 #include "components/prefs/pref_registry_simple.h"
  21 #include "components/prefs/pref_service.h"
  22 #include "extensions/buildflags/buildflags.h"
  23 #include "extensions/common/extension_l10n_util.h"
  24 #include "ui/base/resource/resource_bundle.h"
  25
  26 #if defined(OS_ANDROID)
  27 #include "ui/base/resource/resource_bundle_android.h"
  28 #endif
  29
  30 #if defined(OS_CHROMEOS)
  31 #include "chrome/common/pref_names.h"
  32 #include "chromeos/constants/chromeos_switches.h"
  33 #endif
  34
  35 namespace {
  36
  37 extern void InitializeLocalState(
  38     ChromeFeatureListCreator* chrome_feature_list_creator) {
  39   TRACE_EVENT0("startup", "ChromeBrowserMainParts::InitializeLocalState");
  40
  41 #if defined(OS_CHROMEOS)
  42   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
  43   if (command_line->HasSwitch(chromeos::switches::kLoginManager)) {
  44     PrefService* local_state = chrome_feature_list_creator->local_state();
  45     DCHECK(local_state);
  46
  47     std::string owner_locale = local_state->GetString(prefs::kOwnerLocale);
  48     // Ensure that we start with owner's locale.
  49     if (!owner_locale.empty() &&
  50         local_state->GetString(language::prefs::kApplicationLocale) !=
  51             owner_locale &&
  52         !local_state->IsManagedPreference(
  53             language::prefs::kApplicationLocale)) {
  54       local_state->SetString(language::prefs::kApplicationLocale, owner_locale);
  55     }
  56   }
  57 #endif  // defined(OS_CHROMEOS)
  58 }
  59
  60 // Initializes the shared instance of ResourceBundle and returns the application
  61 // locale. An empty |actual_locale| value indicates failure.
  62 std::string InitResourceBundleAndDetermineLocale(PrefService* local_state,
  63                                                  bool is_running_tests) {
  64 #if defined(OS_ANDROID)
  65   // In order for SetLoadSecondaryLocalePaks() to work ResourceBundle must
  66   // not have been created yet.
  67   DCHECK(!ui::ResourceBundle::HasSharedInstance());
  68   // Auto-detect based on en-US whether secondary locale .pak files exist.
  69   bool in_split = false;
  70   bool log_error = false;
  71   ui::SetLoadSecondaryLocalePaks(
  72       !ui::GetPathForAndroidLocalePakWithinApk("en-US", in_split, log_error)
  73            .empty());
  74 #endif
  75
  76   std::string preferred_locale;
  77 #if defined(OS_MACOSX)
  78   // TODO(markusheintz): Read preference pref::kApplicationLocale in order
  79   // to enforce the application locale.
  80   // Tests always get en-US.
  81   preferred_locale = is_running_tests ? "en-US" : std::string();
  82 #else
  83   preferred_locale =
  84       local_state->GetString(language::prefs::kApplicationLocale);
  85 #endif
  86
  87   TRACE_EVENT0("startup",
  88                "ChromeBrowserMainParts::InitResourceBundleAndDetermineLocale");
  89   // On a POSIX OS other than ChromeOS, the parameter that is passed to the
  90   // method InitSharedInstance is ignored.
  91   std::string actual_locale = ui::ResourceBundle::InitSharedInstanceWithLocale(
  92       preferred_locale, nullptr, ui::ResourceBundle::LOAD_COMMON_RESOURCES);
  93   CHECK(!actual_locale.empty())
  94       << "Locale could not be found for " << preferred_locale;
  95
  96   // First run prefs needs data from the ResourceBundle, so load it now.
  97   {
  98     TRACE_EVENT0("startup",
  99                  "ChromeBrowserMainParts::InitResourceBundleAndDetermineLocale:"
 100                  ":AddDataPack");
 101     base::FilePath resources_pack_path;
 102     base::PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
 103 #if defined(OS_ANDROID)
 104     ui::LoadMainAndroidPackFile("assets/resources.pak", resources_pack_path);
 105
 106     // Avoid loading DFM native resources here, to keep startup lean. These
 107     // resources are loaded on-use, when an already-installed DFM loads.
 108 #else
 109     ui::ResourceBundle::GetSharedInstance().AddDataPackFromPath(
 110         resources_pack_path, ui::SCALE_FACTOR_NONE);
 111 #endif  // defined(OS_ANDROID)
 112   }
 113
 114 #if BUILDFLAG(ENABLE_EXTENSIONS)
 115   extension_l10n_util::SetProcessLocale(actual_locale);
 116   extension_l10n_util::SetPreferredLocale(preferred_locale);
 117 #endif
 118   return actual_locale;
 119 }
 120
 121 }  // namespace
 122
 123 std::string LoadLocalState(
 124     ChromeFeatureListCreator* chrome_feature_list_creator,
 125     bool is_running_tests) {
 126   base::FilePath user_data_dir;
 127   if (!base::PathService::Get(chrome::DIR_USER_DATA, &user_data_dir))
 128     return std::string();
 129
 130   InitializeLocalState(chrome_feature_list_creator);
 131
 132   chrome_feature_list_creator->local_state()->UpdateCommandLinePrefStore(
 133       new ChromeCommandLinePrefStore(base::CommandLine::ForCurrentProcess()));
 134
 135   return InitResourceBundleAndDetermineLocale(
 136       chrome_feature_list_creator->local_state(), is_running_tests);
 137 }