1// Copyright 2013 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#ifndef COMPONENTS_USER_PREFS_USER_PREFS_H_ 6#define COMPONENTS_USER_PREFS_USER_PREFS_H_ 7 8#include "base/basictypes.h" 9#include "base/supports_user_data.h" 10#include "components/user_prefs/user_prefs_export.h" 11 12class PrefService; 13 14namespace content { 15class BrowserContext; 16} 17 18namespace user_prefs { 19 20// Components may use preferences associated with a given user. These 21// hang off of content::BrowserContext and can be retrieved using 22// UserPrefs::Get(). 23// 24// It is up to the embedder to create and own the PrefService and 25// attach it to BrowserContext using the UserPrefs::Set() function. 26class USER_PREFS_EXPORT UserPrefs : public base::SupportsUserData::Data { 27 public: 28 // Retrieves the PrefService for a given BrowserContext, or NULL if 29 // none is attached. 30 static PrefService* Get(content::BrowserContext* context); 31 32 // Hangs the specified |prefs| off of |context|. Should be called 33 // only once per BrowserContext. 34 static void Set(content::BrowserContext* context, PrefService* prefs); 35 36 private: 37 explicit UserPrefs(PrefService* prefs); 38 virtual ~UserPrefs(); 39 40 // Non-owning; owned by embedder. 41 PrefService* prefs_; 42 43 DISALLOW_COPY_AND_ASSIGN(UserPrefs); 44}; 45 46} // namespace user_prefs 47 48#endif // COMPONENTS_USER_PREFS_USER_PREFS_H_ 49