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// Copyright (c) 2012 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_EXTENSIONS_API_STORAGE_SETTING_SYNC_DATA_H_
#define CHROME_BROWSER_EXTENSIONS_API_STORAGE_SETTING_SYNC_DATA_H_
#include <memory>
#include <string>
#include "base/macros.h"
#include "base/values.h"
#include "components/sync/model/sync_change.h"
namespace syncer {
class SyncData;
}
namespace sync_pb {
class ExtensionSettingSpecifics;
}
namespace extensions {
// Container for data interpreted from sync data/changes for an extension or
// app setting. Safe and efficient to copy.
class SettingSyncData {
public:
// Creates from a sync change.
explicit SettingSyncData(const syncer::SyncChange& sync_change);
// Creates from sync data. |change_type| will be ACTION_INVALID.
explicit SettingSyncData(const syncer::SyncData& sync_data);
// Creates explicitly.
SettingSyncData(syncer::SyncChange::SyncChangeType change_type,
const std::string& extension_id,
const std::string& key,
std::unique_ptr<base::Value> value);
~SettingSyncData();
// May return ACTION_INVALID if this object represents sync data that isn't
// associated with a sync operation.
syncer::SyncChange::SyncChangeType change_type() const {
return change_type_;
}
const std::string& extension_id() const { return extension_id_; }
const std::string& key() const { return key_; }
// value() cannot be called if PassValue() has been called.
const base::Value& value() const { return *value_; }
// Releases ownership of the value to the caller. Neither value() nor
// PassValue() can be after this.
std::unique_ptr<base::Value> PassValue();
private:
// Populates the extension ID, key, and value from |sync_data|. This will be
// either an extension or app settings data type.
void ExtractSyncData(const syncer::SyncData& sync_data);
syncer::SyncChange::SyncChangeType change_type_;
std::string extension_id_;
std::string key_;
std::unique_ptr<base::Value> value_;
DISALLOW_COPY_AND_ASSIGN(SettingSyncData);
};
using SettingSyncDataList = std::vector<std::unique_ptr<SettingSyncData>>;
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_API_STORAGE_SETTING_SYNC_DATA_H_
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