172a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen// Copyright (c) 2011 The Chromium Authors. All rights reserved. 221d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen// Use of this source code is governed by a BSD-style license that can be 321d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen// found in the LICENSE file. 421d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen 521d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen#ifndef CHROME_BROWSER_PREFS_VALUE_MAP_PREF_STORE_H_ 621d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen#define CHROME_BROWSER_PREFS_VALUE_MAP_PREF_STORE_H_ 721d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen#pragma once 821d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen 921d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen#include "base/basictypes.h" 1021d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen#include "base/observer_list.h" 1121d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen#include "chrome/browser/prefs/pref_value_map.h" 1221d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen#include "chrome/common/pref_store.h" 1321d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen 1421d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen// A basic PrefStore implementation that uses a simple name-value map for 1521d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen// storing the preference values. 1621d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsenclass ValueMapPrefStore : public PrefStore { 1721d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen public: 1872a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen typedef std::map<std::string, Value*>::iterator iterator; 1972a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen typedef std::map<std::string, Value*>::const_iterator const_iterator; 2072a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen 2121d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen ValueMapPrefStore(); 2221d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen virtual ~ValueMapPrefStore(); 2321d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen 2421d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen // PrefStore overrides: 25ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen virtual ReadResult GetValue(const std::string& key, 26ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen const Value** value) const; 2721d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen virtual void AddObserver(PrefStore::Observer* observer); 2821d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen virtual void RemoveObserver(PrefStore::Observer* observer); 2921d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen 3072a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen iterator begin(); 3172a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen iterator end(); 3272a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen const_iterator begin() const; 3372a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen const_iterator end() const; 3472a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen 3521d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen protected: 3621d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen // Store a |value| for |key| in the store. Also generates an notification if 3721d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen // the value changed. Assumes ownership of |value|, which must be non-NULL. 3821d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen void SetValue(const std::string& key, Value* value); 3921d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen 4021d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen // Remove the value for |key| from the store. Sends a notification if there 4121d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen // was a value to be removed. 4221d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen void RemoveValue(const std::string& key); 4321d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen 4421d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen // Notify observers about the initialization completed event. 4521d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen void NotifyInitializationCompleted(); 4621d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen 4721d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen private: 4821d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen PrefValueMap prefs_; 4921d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen 5021d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen ObserverList<PrefStore::Observer, true> observers_; 5121d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen 5221d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen DISALLOW_COPY_AND_ASSIGN(ValueMapPrefStore); 5321d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen}; 5421d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen 5521d179b334e59e9a3bfcaed4c4430bef1bc5759dKristian Monsen#endif // CHROME_BROWSER_PREFS_VALUE_MAP_PREF_STORE_H_ 56