// Copyright 2013 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. #ifndef COMPONENTS_USER_PREFS_USER_PREFS_H_ #define COMPONENTS_USER_PREFS_USER_PREFS_H_ #include "base/memory/raw_ptr.h" #include "base/supports_user_data.h" #include "components/user_prefs/user_prefs_export.h" class PrefService; namespace user_prefs { // Components may use preferences associated with a given user. These hang off // of base::SupportsUserData and can be retrieved using UserPrefs::Get(). // // It is up to the embedder to create and own the PrefService and attach it to // base::SupportsUserData using the UserPrefs::Set() function. class USER_PREFS_EXPORT UserPrefs : public base::SupportsUserData::Data { public: UserPrefs(const UserPrefs&) = delete; UserPrefs& operator=(const UserPrefs&) = delete; ~UserPrefs() override; // Retrieves the PrefService for a given context, or null if none is attached. static PrefService* Get(base::SupportsUserData* context); // Hangs the specified |prefs| off of |context|. Should be called // only once per context. static void Set(base::SupportsUserData* context, PrefService* prefs); private: explicit UserPrefs(PrefService* prefs); // Non-owning; owned by embedder. raw_ptr prefs_; }; } // namespace user_prefs #endif // COMPONENTS_USER_PREFS_USER_PREFS_H_