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
3// found in the LICENSE file.
4
5#ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_PREF_STORE_H_
6#define CHROME_BROWSER_EXTENSIONS_EXTENSION_PREF_STORE_H_
7#pragma once
8
9#include <string>
10
11#include "base/time.h"
12#include "chrome/browser/extensions/extension_pref_value_map.h"
13#include "chrome/browser/prefs/value_map_pref_store.h"
14
15// A (non-persistent) PrefStore implementation that holds effective preferences
16// set by extensions. These preferences are managed by and fetched from an
17// ExtensionPrefValueMap.
18class ExtensionPrefStore : public ValueMapPrefStore,
19                           public ExtensionPrefValueMap::Observer {
20 public:
21  // Constructs an ExtensionPrefStore for a regular or an incognito profile.
22  explicit ExtensionPrefStore(ExtensionPrefValueMap* extension_pref_value_map,
23                              bool incognito_pref_store);
24  virtual ~ExtensionPrefStore();
25
26 private:
27  // Overrides for ExtensionPrefValueMap::Observer:
28  virtual void OnInitializationCompleted();
29  virtual void OnPrefValueChanged(const std::string& key);
30  virtual void OnExtensionPrefValueMapDestruction();
31
32  ExtensionPrefValueMap* extension_pref_value_map_;  // Weak pointer.
33  bool incognito_pref_store_;
34
35  DISALLOW_COPY_AND_ASSIGN(ExtensionPrefStore);
36};
37
38#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_PREF_STORE_H_
39