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 CHROME_BROWSER_SYNC_BACKUP_ROLLBACK_CONTROLLER_H_ 6 #define CHROME_BROWSER_SYNC_BACKUP_ROLLBACK_CONTROLLER_H_ 7 8 #include "base/callback.h" 9 #include "base/memory/weak_ptr.h" 10 11 class ManagedUserSigninManagerWrapper; 12 13 namespace sync_driver { 14 class SyncPrefs; 15 } 16 17 namespace browser_sync { 18 19 // BackupRollbackController takes two closures for starting backup/rollback 20 // process. It calls the closures according to user's signin status or 21 // received rollback command. Backup is not run when user signed in, even when 22 // sync is not running. 23 class BackupRollbackController { 24 public: 25 BackupRollbackController(sync_driver::SyncPrefs* sync_prefs, 26 const ManagedUserSigninManagerWrapper* signin, 27 base::Closure start_backup, 28 base::Closure start_rollback); 29 ~BackupRollbackController(); 30 31 // Check to see whether to start backup/rollback. |delay| specifies the time 32 // to wait before checking. 33 void Start(base::TimeDelta delay); 34 35 // Update rollback preference to indicate rollback is needed. 36 void OnRollbackReceived(); 37 38 // Update rollback preference to indicate rollback is finished. 39 void OnRollbackDone(); 40 41 // Return true if platform supports backup and backup is enabled. 42 static bool IsBackupEnabled(); 43 44 private: 45 // Check signin status and rollback preference and start backup/rollback 46 // accordingly. 47 void TryStart(); 48 49 sync_driver::SyncPrefs* sync_prefs_; 50 51 // Use ManagedUserSigninManagerWrapper instead of SigninManagerBase because 52 // SigninManagerBase could return non-empty user name for managed user, which 53 // would cause backup to trumpet normal sync for managed user. 54 const ManagedUserSigninManagerWrapper* signin_; 55 56 base::Closure start_backup_; 57 base::Closure start_rollback_; 58 base::WeakPtrFactory<BackupRollbackController> weak_ptr_factory_; 59 60 DISALLOW_COPY_AND_ASSIGN(BackupRollbackController); 61 }; 62 63 } // namespace browser_sync 64 65 #endif // CHROME_BROWSER_SYNC_BACKUP_ROLLBACK_CONTROLLER_H_ 66