| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef BASE_PREFS_VALUE_MAP_PREF_STORE_H_ |
| #define BASE_PREFS_VALUE_MAP_PREF_STORE_H_ |
| |
| #include <map> |
| #include <string> |
| |
| #include "base/basictypes.h" |
| #include "base/observer_list.h" |
| #include "base/prefs/base_prefs_export.h" |
| #include "base/prefs/pref_value_map.h" |
| #include "base/prefs/writeable_pref_store.h" |
| |
| // A basic PrefStore implementation that uses a simple name-value map for |
| // storing the preference values. |
| class BASE_PREFS_EXPORT ValueMapPrefStore : public WriteablePrefStore { |
| public: |
| ValueMapPrefStore(); |
| |
| // PrefStore overrides: |
| virtual bool GetValue(const std::string& key, |
| const base::Value** value) const OVERRIDE; |
| virtual void AddObserver(PrefStore::Observer* observer) OVERRIDE; |
| virtual void RemoveObserver(PrefStore::Observer* observer) OVERRIDE; |
| virtual bool HasObservers() const OVERRIDE; |
| |
| // WriteablePrefStore overrides: |
| virtual void SetValue(const std::string& key, base::Value* value) OVERRIDE; |
| virtual void RemoveValue(const std::string& key) OVERRIDE; |
| virtual bool GetMutableValue(const std::string& key, |
| base::Value** value) OVERRIDE; |
| virtual void ReportValueChanged(const std::string& key) OVERRIDE; |
| |
| protected: |
| virtual ~ValueMapPrefStore(); |
| |
| // Notify observers about the initialization completed event. |
| void NotifyInitializationCompleted(); |
| |
| private: |
| PrefValueMap prefs_; |
| |
| ObserverList<PrefStore::Observer, true> observers_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ValueMapPrefStore); |
| }; |
| |
| #endif // BASE_PREFS_VALUE_MAP_PREF_STORE_H_ |