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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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_NOTIFIER_IMPL_H_ | 5 #ifndef BASE_PREFS_PREF_NOTIFIER_IMPL_H_ |
6 #define BASE_PREFS_PREF_NOTIFIER_IMPL_H_ | 6 #define BASE_PREFS_PREF_NOTIFIER_IMPL_H_ |
7 | 7 |
8 #include <list> | 8 #include <list> |
9 #include <string> | 9 #include <string> |
10 | 10 |
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34 | 34 |
35 // We run the callback once, when initialization completes. The bool | 35 // We run the callback once, when initialization completes. The bool |
36 // parameter will be set to true for successful initialization, | 36 // parameter will be set to true for successful initialization, |
37 // false for unsuccessful. | 37 // false for unsuccessful. |
38 void AddInitObserver(base::Callback<void(bool)> observer); | 38 void AddInitObserver(base::Callback<void(bool)> observer); |
39 | 39 |
40 void SetPrefService(PrefService* pref_service); | 40 void SetPrefService(PrefService* pref_service); |
41 | 41 |
42 protected: | 42 protected: |
43 // PrefNotifier overrides. | 43 // PrefNotifier overrides. |
44 virtual void OnPreferenceChanged(const std::string& pref_name) OVERRIDE; | 44 void OnPreferenceChanged(const std::string& pref_name) override; |
45 virtual void OnInitializationCompleted(bool succeeded) OVERRIDE; | 45 void OnInitializationCompleted(bool succeeded) override; |
46 | 46 |
47 // A map from pref names to a list of observers. Observers get fired in the | 47 // A map from pref names to a list of observers. Observers get fired in the |
48 // order they are added. These should only be accessed externally for unit | 48 // order they are added. These should only be accessed externally for unit |
49 // testing. | 49 // testing. |
50 typedef ObserverList<PrefObserver> PrefObserverList; | 50 typedef ObserverList<PrefObserver> PrefObserverList; |
51 typedef base::hash_map<std::string, PrefObserverList*> PrefObserverMap; | 51 typedef base::hash_map<std::string, PrefObserverList*> PrefObserverMap; |
52 | 52 |
53 typedef std::list<base::Callback<void(bool)> > PrefInitObserverList; | 53 typedef std::list<base::Callback<void(bool)> > PrefInitObserverList; |
54 | 54 |
55 const PrefObserverMap* pref_observers() const { return &pref_observers_; } | 55 const PrefObserverMap* pref_observers() const { return &pref_observers_; } |
56 | 56 |
57 private: | 57 private: |
58 // For the given pref_name, fire any observer of the pref. Virtual so it can | 58 // For the given pref_name, fire any observer of the pref. Virtual so it can |
59 // be mocked for unit testing. | 59 // be mocked for unit testing. |
60 virtual void FireObservers(const std::string& path); | 60 virtual void FireObservers(const std::string& path); |
61 | 61 |
62 // Weak reference; the notifier is owned by the PrefService. | 62 // Weak reference; the notifier is owned by the PrefService. |
63 PrefService* pref_service_; | 63 PrefService* pref_service_; |
64 | 64 |
65 PrefObserverMap pref_observers_; | 65 PrefObserverMap pref_observers_; |
66 PrefInitObserverList init_observers_; | 66 PrefInitObserverList init_observers_; |
67 | 67 |
68 base::ThreadChecker thread_checker_; | 68 base::ThreadChecker thread_checker_; |
69 | 69 |
70 DISALLOW_COPY_AND_ASSIGN(PrefNotifierImpl); | 70 DISALLOW_COPY_AND_ASSIGN(PrefNotifierImpl); |
71 }; | 71 }; |
72 | 72 |
73 #endif // BASE_PREFS_PREF_NOTIFIER_IMPL_H_ | 73 #endif // BASE_PREFS_PREF_NOTIFIER_IMPL_H_ |
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