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// Copyright 2014 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_SUPERVISED_USER_SUPERVISED_USER_PREF_MAPPING_SERVICE_H_
#define CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_PREF_MAPPING_SERVICE_H_
#include "base/callback.h"
#include "base/callback_list.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/prefs/pref_change_registrar.h"
#include "chrome/browser/supervised_user/supervised_users.h"
#include "components/keyed_service/core/keyed_service.h"
class PrefService;
class SupervisedUserSharedSettingsService;
// SupervisedUserPrefMappingService maps shared supervised user settings to user
// preferences. When a shared supervised user setting is updated via sync, the
// corresponding local user preference is set to this new value.
class SupervisedUserPrefMappingService : public KeyedService {
public:
typedef base::CallbackList<void(const std::string&, const std::string&)>
CallbackList;
SupervisedUserPrefMappingService(
PrefService* prefs,
SupervisedUserSharedSettingsService* shared_settings);
virtual ~SupervisedUserPrefMappingService();
// KeyedService implementation:
virtual void Shutdown() OVERRIDE;
void Init();
// Updates the supervised user shared setting when the avatar has changed.
void OnAvatarChanged();
// Called when a supervised user shared setting was changed by receiving new
// sync data. Updates the corresponding user pref.
void OnSharedSettingChanged(const std::string& su_id, const std::string& key);
private:
// Returns the current chrome avatar index that is stored as a supervised user
// shared setting, or -1 if no avatar index is stored.
int GetChromeAvatarIndex();
PrefService* prefs_;
SupervisedUserSharedSettingsService* shared_settings_;
scoped_ptr<CallbackList::Subscription> subscription_;
std::string supervised_user_id_;
PrefChangeRegistrar pref_change_registrar_;
base::WeakPtrFactory<SupervisedUserPrefMappingService> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(SupervisedUserPrefMappingService);
};
#endif // CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_PREF_MAPPING_SERVICE_H_
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