1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef SYNC_INTERNAL_API_SYNC_BACKUP_MANAGER_H_ 6 #define SYNC_INTERNAL_API_SYNC_BACKUP_MANAGER_H_ 7 8 #include <set> 9 10 #include "sync/internal_api/sync_rollback_manager_base.h" 11 12 namespace syncer { 13 14 // SyncBackupManager runs before user signs in to sync to back up user's data 15 // before sync starts. The data that's backed up can be used to restore user's 16 // settings to pre-sync state. 17 class SYNC_EXPORT_PRIVATE SyncBackupManager : public SyncRollbackManagerBase { 18 public: 19 SyncBackupManager(); 20 virtual ~SyncBackupManager(); 21 22 // SyncManager implementation. 23 virtual void Init( 24 const base::FilePath& database_location, 25 const WeakHandle<JsEventHandler>& event_handler, 26 const std::string& sync_server_and_path, 27 int sync_server_port, 28 bool use_ssl, 29 scoped_ptr<HttpPostProviderFactory> post_factory, 30 const std::vector<scoped_refptr<ModelSafeWorker> >& workers, 31 ExtensionsActivity* extensions_activity, 32 SyncManager::ChangeDelegate* change_delegate, 33 const SyncCredentials& credentials, 34 const std::string& invalidator_client_id, 35 const std::string& restored_key_for_bootstrapping, 36 const std::string& restored_keystore_key_for_bootstrapping, 37 InternalComponentsFactory* internal_components_factory, 38 Encryptor* encryptor, 39 scoped_ptr<UnrecoverableErrorHandler> unrecoverable_error_handler, 40 ReportUnrecoverableErrorFunction 41 report_unrecoverable_error_function, 42 CancelationSignal* cancelation_signal) OVERRIDE; 43 virtual void SaveChanges() OVERRIDE; 44 virtual SyncStatus GetDetailedStatus() const OVERRIDE; 45 46 // DirectoryChangeDelegate implementation. 47 virtual ModelTypeSet HandleTransactionEndingChangeEvent( 48 const syncable::ImmutableWriteTransactionInfo& write_transaction_info, 49 syncable::BaseTransaction* trans) OVERRIDE; 50 51 virtual void RegisterDirectoryTypeDebugInfoObserver( 52 syncer::TypeDebugInfoObserver* observer) OVERRIDE; 53 virtual void UnregisterDirectoryTypeDebugInfoObserver( 54 syncer::TypeDebugInfoObserver* observer) OVERRIDE; 55 virtual bool HasDirectoryTypeDebugInfoObserver( 56 syncer::TypeDebugInfoObserver* observer) OVERRIDE; 57 virtual void RequestEmitDebugInfo() OVERRIDE; 58 59 private: 60 // Replaces local IDs with server IDs and clear unsynced bit of modified 61 // entries. 62 void NormalizeEntries(); 63 64 // Manipulate preference nodes so that they'll be overwritten by local 65 // preference values during model association, i.e. local wins instead of 66 // server wins. This is for preventing backup from changing preferences in 67 // case backup DB has hijacked preferences. 68 void HideSyncPreference(ModelType pref_type); 69 70 // Handles of unsynced entries caused by local model changes. 71 std::set<int64> unsynced_; 72 73 // True if NormalizeEntries() is being called. 74 bool in_normalization_; 75 76 SyncStatus status_; 77 78 DISALLOW_COPY_AND_ASSIGN(SyncBackupManager); 79 }; 80 81 } // namespace syncer 82 83 #endif // SYNC_INTERNAL_API_SYNC_BACKUP_MANAGER_H_ 84