| // Copyright 2013 The Chromium Authors |
| // 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<PrefService, DanglingAcrossTasks> prefs_; |
| }; |
| |
| } // namespace user_prefs |
| |
| #endif // COMPONENTS_USER_PREFS_USER_PREFS_H_ |