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// Copyright (c) 2010 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_SYNC_GLUE_EXTENSION_SYNC_TRAITS_H_
#define CHROME_BROWSER_SYNC_GLUE_EXTENSION_SYNC_TRAITS_H_
#pragma once
#include "chrome/browser/sync/syncable/model_type.h"
#include "chrome/browser/sync/glue/extension_util.h"
namespace sync_api {
class BaseNode;
class WriteNode;
} // namespace sync_api
namespace sync_pb {
class ExtensionSpecifics;
} // namespace sync_pb
namespace browser_sync {
// ExtensionSpecificsGetter : BaseNode -> ExtensionSpecifics
typedef const sync_pb::ExtensionSpecifics& (*ExtensionSpecificsGetter)(
const sync_api::BaseNode&);
// A function that sets the appropriate member of the given BaseNode
// to the given ExtensionSpecifics.
typedef void (*ExtensionSpecificsSetter)(
const sync_pb::ExtensionSpecifics&, sync_api::WriteNode*);
// A function that tries to retrieve an ExtensionSpecifics from an
// EntitySpecifics. Returns true and fills in the second argument iff
// successful.
typedef bool (*ExtensionSpecificsEntityGetter)(
const sync_pb::EntitySpecifics&, sync_pb::ExtensionSpecifics*);
// Represents the properties needed for syncing data types that
// involve extensions (e.g., "real" extensions, apps).
struct ExtensionSyncTraits {
ExtensionSyncTraits(
syncable::ModelType model_type,
const char* root_node_tag,
const ExtensionTypeSet& allowed_extension_types,
ExtensionSpecificsGetter extension_specifics_getter,
ExtensionSpecificsSetter extension_specifics_setter,
ExtensionSpecificsEntityGetter extension_specifics_entity_getter);
// The sync type for the data type.
const syncable::ModelType model_type;
// The tag with which the top-level data type node is marked.
const char* const root_node_tag;
// The set of allowed ExtensionTypes (not just a single one since
// some data types handle more than one).
const ExtensionTypeSet allowed_extension_types;
// The function that retrieves a ExtensionSpecifics reference (which
// may be embedded in another specifics object) from a sync node.
const ExtensionSpecificsGetter extension_specifics_getter;
// The function that embeds an ExtensionSpecifics into a sync node.
const ExtensionSpecificsSetter extension_specifics_setter;
// The function that retrieves a ExtensionSpecifics (if possible)
// from an EntitySpecifics.
ExtensionSpecificsEntityGetter extension_specifics_entity_getter;
};
// Gets traits for extensions sync.
ExtensionSyncTraits GetExtensionSyncTraits();
// Gets traits for apps sync.
ExtensionSyncTraits GetAppSyncTraits();
} // namespace browser_sync
#endif // CHROME_BROWSER_SYNC_GLUE_EXTENSION_SYNC_TRAITS_H_
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