chrome/browser/supervised_user/supervised_user_pref_store.h

   1 // Copyright 2014 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_SUPERVISED_USER_SUPERVISED_USER_PREF_STORE_H_
   6 #define CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_PREF_STORE_H_
   7
   8 #include <string>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/observer_list.h"
  12 #include "base/prefs/pref_store.h"
  13 #include "chrome/browser/supervised_user/supervised_users.h"
  14
  15 namespace base {
  16 class DictionaryValue;
  17 class Value;
  18 }
  19
  20 class PrefValueMap;
  21 class SupervisedUserSettingsService;
  22
  23 // A PrefStore that gets its values from supervised user settings via the
  24 // SupervisedUserSettingsService passed in at construction.
  25 class SupervisedUserPrefStore : public PrefStore {
  26  public:
  27   SupervisedUserPrefStore(
  28       SupervisedUserSettingsService* supervised_user_settings_service);
  29
  30   // PrefStore overrides:
  31   bool GetValue(const std::string& key,
  32                 const base::Value** value) const override;
  33   void AddObserver(PrefStore::Observer* observer) override;
  34   void RemoveObserver(PrefStore::Observer* observer) override;
  35   bool HasObservers() const override;
  36   bool IsInitializationComplete() const override;
  37
  38  private:
  39   ~SupervisedUserPrefStore() override;
  40
  41   void OnNewSettingsAvailable(const base::DictionaryValue* settings);
  42
  43   scoped_ptr<PrefValueMap> prefs_;
  44
  45   ObserverList<PrefStore::Observer, true> observers_;
  46
  47   base::WeakPtrFactory<SupervisedUserPrefStore> weak_ptr_factory_;
  48 };
  49
  50 #endif  // CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_PREF_STORE_H_