gecko-dev/storage/public/mozIStorageProgressHandler.idl

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsISupports.idl"

interface mozIStorageConnection;

/**
 * mozIProgressHandler is to be implemented by storage consumers that
 * wish to receive callbacks during the request execution.
 */
[scriptable, uuid(a3a6fcd4-bf89-4208-a837-bf2a73afd30c)]
interface mozIStorageProgressHandler : nsISupports {
  /**
   * onProgress is invoked periodically during long running calls.
   * 
   * @param aConnection    connection, for which progress handler is
   *                       invoked.
   *
   * @return true to abort request, false to continue work.
   */

  boolean onProgress(in mozIStorageConnection aConnection);
};