chromecast/browser/pref_service_helper.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 "chromecast/browser/pref_service_helper.h"
   6
   7 #include <string>
   8
   9 #include "base/files/file_path.h"
  10 #include "base/files/file_util.h"
  11 #include "base/logging.h"
  12 #include "base/path_service.h"
  13 #include "base/prefs/json_pref_store.h"
  14 #include "base/prefs/pref_registry_simple.h"
  15 #include "base/prefs/pref_service_factory.h"
  16 #include "base/prefs/pref_store.h"
  17 #include "chromecast/base/cast_paths.h"
  18 #include "chromecast/base/pref_names.h"
  19 #include "content/public/browser/browser_thread.h"
  20
  21 namespace chromecast {
  22 namespace shell {
  23
  24 namespace {
  25
  26 void UserPrefsLoadError(PersistentPrefStore::PrefReadError* error_val,
  27                         PersistentPrefStore::PrefReadError error) {
  28   DCHECK(error_val);
  29   *error_val = error;
  30 }
  31
  32 base::FilePath GetConfigPath() {
  33   base::FilePath config_path;
  34   CHECK(PathService::Get(FILE_CAST_CONFIG, &config_path));
  35   return config_path;
  36 }
  37
  38 }  // namespace
  39
  40 // static
  41 scoped_ptr<PrefService> PrefServiceHelper::CreatePrefService(
  42     PrefRegistrySimple* registry) {
  43   const base::FilePath config_path(GetConfigPath());
  44   VLOG(1) << "Loading config from " << config_path.value();
  45
  46   registry->RegisterBooleanPref(prefs::kEnableRemoteDebugging, false);
  47   registry->RegisterBooleanPref(prefs::kMetricsIsNewClientID, false);
  48   // Opt-in stats default to true to handle two different cases:
  49   //  1) Any crashes or UMA logs are recorded prior to setup completing
  50   //     successfully (even though we can't send them yet).  Unless the user
  51   //     ends up actually opting out, we don't want to lose this data once
  52   //     we get network connectivity and are able to send it.  If the user
  53   //     opts out, nothing further will be sent (honoring the user's setting).
  54   //  2) Dogfood users (see dogfood agreement).
  55   registry->RegisterBooleanPref(prefs::kOptInStats, true);
  56
  57   RegisterPlatformPrefs(registry);
  58
  59   base::PrefServiceFactory prefServiceFactory;
  60   scoped_refptr<base::SequencedTaskRunner> task_runner =
  61       JsonPrefStore::GetTaskRunnerForFile(
  62           config_path,
  63           content::BrowserThread::GetBlockingPool());
  64   prefServiceFactory.SetUserPrefsFile(config_path, task_runner.get());
  65   prefServiceFactory.set_async(false);
  66
  67   PersistentPrefStore::PrefReadError prefs_read_error =
  68       PersistentPrefStore::PREF_READ_ERROR_NONE;
  69   prefServiceFactory.set_read_error_callback(
  70       base::Bind(&UserPrefsLoadError, &prefs_read_error));
  71
  72   scoped_ptr<PrefService> pref_service(prefServiceFactory.Create(registry));
  73   if (prefs_read_error != PersistentPrefStore::PREF_READ_ERROR_NONE) {
  74     LOG(ERROR) << "Cannot initialize chromecast config: "
  75                << config_path.value()
  76                << ", pref_error=" << prefs_read_error;
  77   }
  78
  79   OnPrefsLoaded(pref_service.get());
  80   return pref_service.Pass();
  81 }
  82
  83 }  // namespace shell
  84 }  // namespace chromecast