Index: components/reading_list/ios/reading_list_store.h |
diff --git a/components/reading_list/ios/reading_list_store.h b/components/reading_list/ios/reading_list_store.h |
deleted file mode 100644 |
index 9852d791675495c06c0c5eff49a1beb674111e44..0000000000000000000000000000000000000000 |
--- a/components/reading_list/ios/reading_list_store.h |
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-// Copyright 2016 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_READING_LIST_IOS_READING_LIST_STORE_H_ |
-#define COMPONENTS_READING_LIST_IOS_READING_LIST_STORE_H_ |
- |
-#include <memory> |
-#include <string> |
- |
-#include "base/threading/non_thread_safe.h" |
-#include "components/reading_list/ios/reading_list_model_storage.h" |
-#include "components/reading_list/ios/reading_list_store_delegate.h" |
-#include "components/sync/model/model_error.h" |
-#include "components/sync/model/model_type_store.h" |
- |
-namespace syncer { |
-class MutableDataBatch; |
-} |
- |
-class ReadingListModel; |
- |
-// A ReadingListModelStorage storing and syncing data in protobufs. |
-class ReadingListStore : public ReadingListModelStorage, |
- public base::NonThreadSafe { |
- using StoreFactoryFunction = base::Callback<void( |
- const syncer::ModelTypeStore::InitCallback& callback)>; |
- |
- public: |
- ReadingListStore(StoreFactoryFunction create_store_callback, |
- const ChangeProcessorFactory& change_processor_factory); |
- ~ReadingListStore() override; |
- |
- std::unique_ptr<ScopedBatchUpdate> EnsureBatchCreated() override; |
- |
- // ReadingListModelStorage implementation |
- void SetReadingListModel(ReadingListModel* model, |
- ReadingListStoreDelegate* delegate, |
- base::Clock* clock) override; |
- |
- void SaveEntry(const ReadingListEntry& entry) override; |
- void RemoveEntry(const ReadingListEntry& entry) override; |
- |
- // Creates an object used to communicate changes in the sync metadata to the |
- // model type store. |
- std::unique_ptr<syncer::MetadataChangeList> CreateMetadataChangeList() |
- override; |
- |
- // Perform the initial merge between local and sync data. This should only be |
- // called when a data type is first enabled to start syncing, and there is no |
- // sync metadata. Best effort should be made to match local and sync data. The |
- // keys in the |entity_data_map| will have been created via GetClientTag(...), |
- // and if a local and sync data should match/merge but disagree on tags, the |
- // service should use the sync data's tag. Any local pieces of data that are |
- // not present in sync should immediately be Put(...) to the processor before |
- // returning. The same MetadataChangeList that was passed into this function |
- // can be passed to Put(...) calls. Delete(...) can also be called but should |
- // not be needed for most model types. Durable storage writes, if not able to |
- // combine all change atomically, should save the metadata after the data |
- // changes, so that this merge will be re-driven by sync if is not completely |
- // saved during the current run. |
- base::Optional<syncer::ModelError> MergeSyncData( |
- std::unique_ptr<syncer::MetadataChangeList> metadata_change_list, |
- syncer::EntityDataMap entity_data_map) override; |
- |
- // Apply changes from the sync server locally. |
- // Please note that |entity_changes| might have fewer entries than |
- // |metadata_change_list| in case when some of the data changes are filtered |
- // out, or even be empty in case when a commit confirmation is processed and |
- // only the metadata needs to persisted. |
- base::Optional<syncer::ModelError> ApplySyncChanges( |
- std::unique_ptr<syncer::MetadataChangeList> metadata_change_list, |
- syncer::EntityChangeList entity_changes) override; |
- |
- // Returns whether entries respect a strict order for sync and if |rhs| can be |
- // submitted to sync after |lhs| has been received. |
- // The order should ensure that there is no sync loop in sync and should be |
- // submitted to sync in strictly increasing order. |
- // Entries are in increasing order if all the fields respect increasing order. |
- // - URL must be the same. |
- // - update_title_time_us: |
- // rhs.update_title_time_us >= lhs.update_title_time_us |
- // - title: |
- // if rhs.update_title_time_us > lhs.update_title_time_us |
- // title can be anything |
- // if rhs.update_title_time_us == lhs.update_title_time_us |
- // title must verify rhs.title.compare(lhs.title) >= 0 |
- // - creation_time_us: |
- // rhs.creation_time_us >= lhs.creation_time_us |
- // - rhs.first_read_time_us: |
- // if rhs.creation_time_us > lhs.creation_time_us, |
- // rhs.first_read_time_us can be anything. |
- // if rhs.creation_time_us == lhs.creation_time_us |
- // and rhs.first_read_time_us == 0 |
- // rhs.first_read_time_us can be anything. |
- // if rhs.creation_time_us == lhs.creation_time_us, |
- // rhs.first_read_time_us <= lhs.first_read_time_us |
- // - update_time_us: |
- // rhs.update_time_us >= lhs.update_time_us |
- // - state: |
- // if rhs.update_time_us > lhs.update_time_us |
- // rhs.state can be anything. |
- // if rhs.update_time_us == lhs.update_time_us |
- // rhs.state >= lhs.state in the order UNSEEN, UNREAD, READ. |
- static bool CompareEntriesForSync(const sync_pb::ReadingListSpecifics& lhs, |
- const sync_pb::ReadingListSpecifics& rhs); |
- |
- // Asynchronously retrieve the corresponding sync data for |storage_keys|. |
- void GetData(StorageKeyList storage_keys, DataCallback callback) override; |
- |
- // Asynchronously retrieve all of the local sync data. |
- void GetAllData(DataCallback callback) override; |
- |
- // Get or generate a client tag for |entity_data|. This must be the same tag |
- // that was/would have been generated in the SyncableService/Directory world |
- // for backward compatibility with pre-USS clients. The only time this |
- // theoretically needs to be called is on the creation of local data, however |
- // it is also used to verify the hash of remote data. If a data type was never |
- // launched pre-USS, then method does not need to be different from |
- // GetStorageKey(). |
- std::string GetClientTag(const syncer::EntityData& entity_data) override; |
- |
- // Get or generate a storage key for |entity_data|. This will only ever be |
- // called once when first encountering a remote entity. Local changes will |
- // provide their storage keys directly to Put instead of using this method. |
- // Theoretically this function doesn't need to be stable across multiple calls |
- // on the same or different clients, but to keep things simple, it probably |
- // should be. |
- std::string GetStorageKey(const syncer::EntityData& entity_data) override; |
- |
- // Methods used as callbacks given to DataTypeStore. |
- void OnStoreCreated(syncer::ModelTypeStore::Result result, |
- std::unique_ptr<syncer::ModelTypeStore> store); |
- |
- class ScopedBatchUpdate : public ReadingListModelStorage::ScopedBatchUpdate { |
- public: |
- explicit ScopedBatchUpdate(ReadingListStore* store); |
- |
- ~ScopedBatchUpdate() override; |
- |
- private: |
- ReadingListStore* store_; |
- |
- DISALLOW_COPY_AND_ASSIGN(ScopedBatchUpdate); |
- }; |
- |
- private: |
- void BeginTransaction(); |
- void CommitTransaction(); |
- // Callbacks needed for the database handling. |
- void OnDatabaseLoad( |
- syncer::ModelTypeStore::Result result, |
- std::unique_ptr<syncer::ModelTypeStore::RecordList> entries); |
- void OnDatabaseSave(syncer::ModelTypeStore::Result result); |
- void OnReadAllMetadata(base::Optional<syncer::ModelError> error, |
- std::unique_ptr<syncer::MetadataBatch> metadata_batch); |
- |
- void AddEntryToBatch(syncer::MutableDataBatch* batch, |
- const ReadingListEntry& entry); |
- |
- std::unique_ptr<syncer::ModelTypeStore> store_; |
- ReadingListModel* model_; |
- ReadingListStoreDelegate* delegate_; |
- StoreFactoryFunction create_store_callback_; |
- |
- int pending_transaction_count_; |
- std::unique_ptr<syncer::ModelTypeStore::WriteBatch> batch_; |
- |
- base::Clock* clock_; |
- |
- DISALLOW_COPY_AND_ASSIGN(ReadingListStore); |
-}; |
- |
-#endif // COMPONENTS_READING_LIST_IOS_READING_LIST_STORE_H_ |