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// Copyright 2017 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 COMPONENTS_HISTORY_CORE_BROWSER_TYPED_URL_SYNC_BRIDGE_H_
#define COMPONENTS_HISTORY_CORE_BROWSER_TYPED_URL_SYNC_BRIDGE_H_
#include "components/history/core/browser/history_backend_observer.h"
#include "components/sync/model/metadata_change_list.h"
#include "components/sync/model/model_type_sync_bridge.h"
#include "components/sync/model/sync_error.h"
namespace syncer {
class SyncMetadataStore;
}
namespace history {
class TypedURLSyncBridge : public syncer::ModelTypeSyncBridge,
public history::HistoryBackendObserver {
public:
// |sync_metadata_store| is owned by |history_backend|, and must outlive
// TypedURLSyncBridge.
TypedURLSyncBridge(HistoryBackend* history_backend,
syncer::SyncMetadataStore* sync_metadata_store,
const ChangeProcessorFactory& change_processor_factory);
~TypedURLSyncBridge() override;
// syncer::ModelTypeService implementation.
std::unique_ptr<syncer::MetadataChangeList> CreateMetadataChangeList()
override;
base::Optional<syncer::ModelError> MergeSyncData(
std::unique_ptr<syncer::MetadataChangeList> metadata_change_list,
syncer::EntityDataMap entity_data_map) override;
base::Optional<syncer::ModelError> ApplySyncChanges(
std::unique_ptr<syncer::MetadataChangeList> metadata_change_list,
syncer::EntityChangeList entity_changes) override;
void GetData(StorageKeyList storage_keys, DataCallback callback) override;
void GetAllData(DataCallback callback) override;
std::string GetClientTag(const syncer::EntityData& entity_data) override;
std::string GetStorageKey(const syncer::EntityData& entity_data) override;
// history::HistoryBackendObserver:
void OnURLVisited(history::HistoryBackend* history_backend,
ui::PageTransition transition,
const history::URLRow& row,
const history::RedirectList& redirects,
base::Time visit_time) override;
void OnURLsModified(history::HistoryBackend* history_backend,
const history::URLRows& changed_urls) override;
void OnURLsDeleted(history::HistoryBackend* history_backend,
bool all_history,
bool expired,
const history::URLRows& deleted_rows,
const std::set<GURL>& favicon_urls) override;
private:
// A non-owning pointer to the backend, which we're syncing local changes from
// and sync changes to.
HistoryBackend* const history_backend_;
// A non-owning pointer to the database, which is for storing typed urls sync
// metadata and state.
syncer::SyncMetadataStore* const sync_metadata_store_;
// Since HistoryBackend use SequencedTaskRunner, so should use SequenceChecker
// here.
base::SequenceChecker sequence_checker_;
DISALLOW_COPY_AND_ASSIGN(TypedURLSyncBridge);
};
} // namespace history
#endif // COMPONENTS_HISTORY_CORE_BROWSER_TYPED_URL_SYNC_BRIDGE_H_
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