| // Copyright (c) 2011 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 CHROME_BROWSER_PREFS_VALUE_MAP_PREF_STORE_H_ |
| #define CHROME_BROWSER_PREFS_VALUE_MAP_PREF_STORE_H_ |
| #pragma once |
| |
| #include "base/basictypes.h" |
| #include "base/observer_list.h" |
| #include "chrome/browser/prefs/pref_value_map.h" |
| #include "chrome/common/pref_store.h" |
| |
| // A basic PrefStore implementation that uses a simple name-value map for |
| // storing the preference values. |
| class ValueMapPrefStore : public PrefStore { |
| public: |
| typedef std::map<std::string, base::Value*>::iterator iterator; |
| typedef std::map<std::string, base::Value*>::const_iterator const_iterator; |
| |
| ValueMapPrefStore(); |
| virtual ~ValueMapPrefStore(); |
| |
| // PrefStore overrides: |
| virtual ReadResult GetValue(const std::string& key, |
| const base::Value** value) const; |
| virtual void AddObserver(PrefStore::Observer* observer); |
| virtual void RemoveObserver(PrefStore::Observer* observer); |
| |
| iterator begin(); |
| iterator end(); |
| const_iterator begin() const; |
| const_iterator end() const; |
| |
| protected: |
| // Store a |value| for |key| in the store. Also generates an notification if |
| // the value changed. Assumes ownership of |value|, which must be non-NULL. |
| void SetValue(const std::string& key, base::Value* value); |
| |
| // Remove the value for |key| from the store. Sends a notification if there |
| // was a value to be removed. |
| void RemoveValue(const std::string& key); |
| |
| // Notify observers about the initialization completed event. |
| void NotifyInitializationCompleted(); |
| |
| private: |
| PrefValueMap prefs_; |
| |
| ObserverList<PrefStore::Observer, true> observers_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ValueMapPrefStore); |
| }; |
| |
| #endif // CHROME_BROWSER_PREFS_VALUE_MAP_PREF_STORE_H_ |