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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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_STORE_H_ | 5 #ifndef COMPONENTS_PREFS_PREF_STORE_H_ |
6 #define BASE_PREFS_PREF_STORE_H_ | 6 #define COMPONENTS_PREFS_PREF_STORE_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/macros.h" | 10 #include "base/macros.h" |
11 #include "base/memory/ref_counted.h" | 11 #include "base/memory/ref_counted.h" |
12 #include "components/prefs/base_prefs_export.h" | 12 #include "components/prefs/base_prefs_export.h" |
13 | 13 |
14 namespace base { | 14 namespace base { |
15 class Value; | 15 class Value; |
16 } | 16 } |
17 | 17 |
18 // This is an abstract interface for reading and writing from/to a persistent | 18 // This is an abstract interface for reading and writing from/to a persistent |
19 // preference store, used by PrefService. An implementation using a JSON file | 19 // preference store, used by PrefService. An implementation using a JSON file |
20 // can be found in JsonPrefStore, while an implementation without any backing | 20 // can be found in JsonPrefStore, while an implementation without any backing |
21 // store for testing can be found in TestingPrefStore. Furthermore, there is | 21 // store for testing can be found in TestingPrefStore. Furthermore, there is |
22 // CommandLinePrefStore, which bridges command line options to preferences and | 22 // CommandLinePrefStore, which bridges command line options to preferences and |
23 // ConfigurationPolicyPrefStore, which is used for hooking up configuration | 23 // ConfigurationPolicyPrefStore, which is used for hooking up configuration |
24 // policy with the preference subsystem. | 24 // policy with the preference subsystem. |
25 class BASE_PREFS_EXPORT PrefStore : public base::RefCounted<PrefStore> { | 25 class COMPONENTS_PREFS_EXPORT PrefStore : public base::RefCounted<PrefStore> { |
26 public: | 26 public: |
27 // Observer interface for monitoring PrefStore. | 27 // Observer interface for monitoring PrefStore. |
28 class BASE_PREFS_EXPORT Observer { | 28 class COMPONENTS_PREFS_EXPORT Observer { |
29 public: | 29 public: |
30 // Called when the value for the given |key| in the store changes. | 30 // Called when the value for the given |key| in the store changes. |
31 virtual void OnPrefValueChanged(const std::string& key) = 0; | 31 virtual void OnPrefValueChanged(const std::string& key) = 0; |
32 // Notification about the PrefStore being fully initialized. | 32 // Notification about the PrefStore being fully initialized. |
33 virtual void OnInitializationCompleted(bool succeeded) = 0; | 33 virtual void OnInitializationCompleted(bool succeeded) = 0; |
34 | 34 |
35 protected: | 35 protected: |
36 virtual ~Observer() {} | 36 virtual ~Observer() {} |
37 }; | 37 }; |
38 | 38 |
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53 const base::Value** result) const = 0; | 53 const base::Value** result) const = 0; |
54 | 54 |
55 protected: | 55 protected: |
56 friend class base::RefCounted<PrefStore>; | 56 friend class base::RefCounted<PrefStore>; |
57 virtual ~PrefStore() {} | 57 virtual ~PrefStore() {} |
58 | 58 |
59 private: | 59 private: |
60 DISALLOW_COPY_AND_ASSIGN(PrefStore); | 60 DISALLOW_COPY_AND_ASSIGN(PrefStore); |
61 }; | 61 }; |
62 | 62 |
63 #endif // BASE_PREFS_PREF_STORE_H_ | 63 #endif // COMPONENTS_PREFS_PREF_STORE_H_ |
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