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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/shell/browser/shell_prefs.h"
#include "build/build_config.h"
#include "components/pref_registry/pref_registry_syncable.h"
#include "components/prefs/json_pref_store.h"
#include "components/prefs/pref_filter.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/pref_service.h"
#include "components/prefs/pref_service_factory.h"
#include "components/user_prefs/user_prefs.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_thread.h"
#include "extensions/browser/extension_prefs.h"
#if defined(OS_CHROMEOS)
#include "chromeos/audio/audio_devices_pref_handler_impl.h"
#endif
using base::FilePath;
using user_prefs::PrefRegistrySyncable;
namespace extensions {
namespace {
void RegisterLocalStatePrefs(PrefRegistrySimple* registry) {
#if defined(OS_CHROMEOS)
chromeos::AudioDevicesPrefHandlerImpl::RegisterPrefs(registry);
#endif
}
// Creates a JsonPrefStore from a file at |filepath| and synchronously loads
// the preferences.
scoped_refptr<JsonPrefStore> CreateAndLoadPrefStore(const FilePath& filepath) {
scoped_refptr<base::SequencedTaskRunner> task_runner =
JsonPrefStore::GetTaskRunnerForFile(
filepath, content::BrowserThread::GetBlockingPool());
scoped_refptr<JsonPrefStore> pref_store =
new JsonPrefStore(filepath, task_runner, scoped_ptr<PrefFilter>());
pref_store->ReadPrefs(); // Synchronous.
return pref_store;
}
} // namespace
namespace shell_prefs {
scoped_ptr<PrefService> CreateLocalState(const FilePath& data_dir) {
FilePath filepath = data_dir.AppendASCII("local_state.json");
scoped_refptr<JsonPrefStore> pref_store = CreateAndLoadPrefStore(filepath);
// Local state is considered "user prefs" from the factory's perspective.
PrefServiceFactory factory;
factory.set_user_prefs(pref_store);
// Local state preferences are not syncable.
PrefRegistrySimple* registry = new PrefRegistrySimple;
RegisterLocalStatePrefs(registry);
return factory.Create(registry);
}
scoped_ptr<PrefService> CreateUserPrefService(
content::BrowserContext* browser_context) {
FilePath filepath = browser_context->GetPath().AppendASCII("user_prefs.json");
scoped_refptr<JsonPrefStore> pref_store = CreateAndLoadPrefStore(filepath);
PrefServiceFactory factory;
factory.set_user_prefs(pref_store);
// TODO(jamescook): If we want to support prefs that are set by extensions
// via ChromeSettings properties (e.g. chrome.accessibilityFeatures or
// chrome.proxy) then this should create an ExtensionPrefStore and attach it
// with PrefServiceFactory::set_extension_prefs().
// See https://developer.chrome.com/extensions/types#ChromeSetting
// Prefs should be registered before the PrefService is created.
PrefRegistrySyncable* pref_registry = new PrefRegistrySyncable;
ExtensionPrefs::RegisterProfilePrefs(pref_registry);
scoped_ptr<PrefService> pref_service = factory.Create(pref_registry);
user_prefs::UserPrefs::Set(browser_context, pref_service.get());
return pref_service;
}
} // namespace shell_prefs
} // namespace extensions
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