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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_DEFAULT_PREF_STORE_H_ | 5 #ifndef BASE_PREFS_DEFAULT_PREF_STORE_H_ |
6 #define BASE_PREFS_DEFAULT_PREF_STORE_H_ | 6 #define BASE_PREFS_DEFAULT_PREF_STORE_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/observer_list.h" | 10 #include "base/observer_list.h" |
11 #include "base/prefs/base_prefs_export.h" | 11 #include "base/prefs/base_prefs_export.h" |
12 #include "base/prefs/pref_store.h" | 12 #include "base/prefs/pref_store.h" |
13 #include "base/prefs/pref_value_map.h" | 13 #include "base/prefs/pref_value_map.h" |
14 #include "base/values.h" | 14 #include "base/values.h" |
15 | 15 |
16 // Used within a PrefRegistry to keep track of default preference values. | 16 // Used within a PrefRegistry to keep track of default preference values. |
17 class BASE_PREFS_EXPORT DefaultPrefStore : public PrefStore { | 17 class BASE_PREFS_EXPORT DefaultPrefStore : public PrefStore { |
18 public: | 18 public: |
19 typedef PrefValueMap::const_iterator const_iterator; | 19 typedef PrefValueMap::const_iterator const_iterator; |
20 | 20 |
21 DefaultPrefStore(); | 21 DefaultPrefStore(); |
22 | 22 |
23 // PrefStore implementation: | 23 // PrefStore implementation: |
24 virtual bool GetValue(const std::string& key, | 24 bool GetValue(const std::string& key, |
25 const base::Value** result) const OVERRIDE; | 25 const base::Value** result) const override; |
26 virtual void AddObserver(PrefStore::Observer* observer) OVERRIDE; | 26 void AddObserver(PrefStore::Observer* observer) override; |
27 virtual void RemoveObserver(PrefStore::Observer* observer) OVERRIDE; | 27 void RemoveObserver(PrefStore::Observer* observer) override; |
28 virtual bool HasObservers() const OVERRIDE; | 28 bool HasObservers() const override; |
29 | 29 |
30 // Sets a |value| for |key|. Should only be called if a value has not been | 30 // Sets a |value| for |key|. Should only be called if a value has not been |
31 // set yet; otherwise call ReplaceDefaultValue(). | 31 // set yet; otherwise call ReplaceDefaultValue(). |
32 void SetDefaultValue(const std::string& key, scoped_ptr<base::Value> value); | 32 void SetDefaultValue(const std::string& key, scoped_ptr<base::Value> value); |
33 | 33 |
34 // Replaces the the value for |key| with a new value. Should only be called | 34 // Replaces the the value for |key| with a new value. Should only be called |
35 // if a value has alreday been set; otherwise call SetDefaultValue(). | 35 // if a value has alreday been set; otherwise call SetDefaultValue(). |
36 void ReplaceDefaultValue(const std::string& key, | 36 void ReplaceDefaultValue(const std::string& key, |
37 scoped_ptr<base::Value> value); | 37 scoped_ptr<base::Value> value); |
38 | 38 |
39 const_iterator begin() const; | 39 const_iterator begin() const; |
40 const_iterator end() const; | 40 const_iterator end() const; |
41 | 41 |
42 private: | 42 private: |
43 virtual ~DefaultPrefStore(); | 43 virtual ~DefaultPrefStore(); |
44 | 44 |
45 PrefValueMap prefs_; | 45 PrefValueMap prefs_; |
46 | 46 |
47 ObserverList<PrefStore::Observer, true> observers_; | 47 ObserverList<PrefStore::Observer, true> observers_; |
48 | 48 |
49 DISALLOW_COPY_AND_ASSIGN(DefaultPrefStore); | 49 DISALLOW_COPY_AND_ASSIGN(DefaultPrefStore); |
50 }; | 50 }; |
51 | 51 |
52 #endif // BASE_PREFS_DEFAULT_PREF_STORE_H_ | 52 #endif // BASE_PREFS_DEFAULT_PREF_STORE_H_ |
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