OLD | NEW |
1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef BASE_PREFS_PREF_CHANGE_REGISTRAR_H_ | 5 #ifndef BASE_PREFS_PREF_CHANGE_REGISTRAR_H_ |
6 #define BASE_PREFS_PREF_CHANGE_REGISTRAR_H_ | 6 #define BASE_PREFS_PREF_CHANGE_REGISTRAR_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <string> | 9 #include <string> |
10 | 10 |
(...skipping 22 matching lines...) Expand all Loading... |
33 void Init(PrefService* service); | 33 void Init(PrefService* service); |
34 | 34 |
35 // Adds a pref observer for the specified pref |path| and |obs| observer | 35 // Adds a pref observer for the specified pref |path| and |obs| observer |
36 // object. All registered observers will be automatically unregistered | 36 // object. All registered observers will be automatically unregistered |
37 // when the registrar's destructor is called. | 37 // when the registrar's destructor is called. |
38 // | 38 // |
39 // The second version binds a callback that will receive the path of | 39 // The second version binds a callback that will receive the path of |
40 // the preference that is changing as its parameter. | 40 // the preference that is changing as its parameter. |
41 // | 41 // |
42 // Only one observer may be registered per path. | 42 // Only one observer may be registered per path. |
43 void Add(const char* path, const base::Closure& obs); | 43 void Add(const std::string& path, const base::Closure& obs); |
44 void Add(const char* path, const NamedChangeCallback& obs); | 44 void Add(const std::string& path, const NamedChangeCallback& obs); |
45 | 45 |
46 // Removes the pref observer registered for |path|. | 46 // Removes the pref observer registered for |path|. |
47 void Remove(const char* path); | 47 void Remove(const std::string& path); |
48 | 48 |
49 // Removes all observers that have been previously added with a call to Add. | 49 // Removes all observers that have been previously added with a call to Add. |
50 void RemoveAll(); | 50 void RemoveAll(); |
51 | 51 |
52 // Returns true if no pref observers are registered. | 52 // Returns true if no pref observers are registered. |
53 bool IsEmpty() const; | 53 bool IsEmpty() const; |
54 | 54 |
55 // Check whether |pref| is in the set of preferences being observed. | 55 // Check whether |pref| is in the set of preferences being observed. |
56 bool IsObserved(const std::string& pref); | 56 bool IsObserved(const std::string& pref); |
57 | 57 |
(...skipping 14 matching lines...) Expand all Loading... |
72 | 72 |
73 typedef std::map<std::string, NamedChangeCallback> ObserverMap; | 73 typedef std::map<std::string, NamedChangeCallback> ObserverMap; |
74 | 74 |
75 ObserverMap observers_; | 75 ObserverMap observers_; |
76 PrefService* service_; | 76 PrefService* service_; |
77 | 77 |
78 DISALLOW_COPY_AND_ASSIGN(PrefChangeRegistrar); | 78 DISALLOW_COPY_AND_ASSIGN(PrefChangeRegistrar); |
79 }; | 79 }; |
80 | 80 |
81 #endif // BASE_PREFS_PREF_CHANGE_REGISTRAR_H_ | 81 #endif // BASE_PREFS_PREF_CHANGE_REGISTRAR_H_ |
OLD | NEW |