components/autofill/core/browser/webdata/autofill_webdata_backend.h

   1 // Copyright 2013 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 COMPONENTS_AUTOFILL_CORE_BROWSER_WEBDATA_AUTOFILL_WEBDATA_BACKEND_H_
   6 #define COMPONENTS_AUTOFILL_CORE_BROWSER_WEBDATA_AUTOFILL_WEBDATA_BACKEND_H_
   7
   8 class WebDatabase;
   9
  10 namespace autofill {
  11
  12 class AutofillWebDataServiceObserverOnDBThread;
  13
  14 // Interface for doing Autofill work directly on the DB thread (used by
  15 // Sync, mostly), without fully exposing the AutofillWebDataBackend to clients.
  16 class AutofillWebDataBackend {
  17  public:
  18   virtual ~AutofillWebDataBackend() {}
  19
  20   // Get a raw pointer to the WebDatabase.
  21   virtual WebDatabase* GetDatabase() = 0;
  22
  23   // Add an observer to be notified of changes on the DB thread.
  24   virtual void AddObserver(
  25       AutofillWebDataServiceObserverOnDBThread* observer) = 0;
  26
  27   // Remove an observer.
  28   virtual void RemoveObserver(
  29       AutofillWebDataServiceObserverOnDBThread* observer) = 0;
  30
  31   // Remove expired elements from the database and commit if needed.
  32   virtual void RemoveExpiredFormElements() = 0;
  33
  34   // Notifies listeners on both DB and UI threads that multiple changes have
  35   // been made to to Autofill records of the database.
  36   // NOTE: This method is intended to be called from the DB thread. The UI
  37   // thread notifications are asynchronous.
  38   virtual void NotifyOfMultipleAutofillChanges() = 0;
  39 };
  40
  41 } // namespace autofill
  42
  43 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_WEBDATA_AUTOFILL_WEBDATA_BACKEND_H_