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/**
6 * @fileoverview Contains a simple factory for creating and opening Gnubby
7 * instances.
8 */
9'use strict';
10
11/**
12 * @param {Gnubbies} gnubbies Gnubbies singleton instance
13 * @constructor
14 * @implements {GnubbyFactory}
15 */
16function UsbGnubbyFactory(gnubbies) {
17  /** @private {Gnubbies} */
18  this.gnubbies_ = gnubbies;
19  Gnubby.setGnubbies(gnubbies);
20}
21
22/**
23 * Creates a new gnubby object, and opens the gnubby with the given index.
24 * @param {GnubbyDeviceId} which The device to open.
25 * @param {boolean} forEnroll Whether this gnubby is being opened for enrolling.
26 * @param {FactoryOpenCallback} cb Called with result of opening the gnubby.
27 * @param {string=} logMsgUrl the url to post log messages to
28 * @override
29 */
30UsbGnubbyFactory.prototype.openGnubby =
31    function(which, forEnroll, cb, logMsgUrl) {
32  var gnubby = new Gnubby();
33  gnubby.open(which, function(rc) {
34    if (rc) {
35      cb(rc, gnubby);
36      return;
37    }
38    gnubby.sync(function(rc) {
39      cb(rc, gnubby);
40    });
41  });
42};
43
44/**
45 * Enumerates gnubbies.
46 * @param {function(number, Array.<GnubbyDeviceId>)} cb Enumerate callback
47 */
48UsbGnubbyFactory.prototype.enumerate = function(cb) {
49  this.gnubbies_.enumerate(cb);
50};
51
52/**
53 * No-op prerequisite check.
54 * @param {Gnubby} gnubby The not-enrolled gnubby.
55 * @param {string} appIdHash The base64-encoded hash of the app id for which
56 *     the gnubby being enrolled.
57 * @param {FactoryOpenCallback} cb Called with the result of the prerequisite
58 *     check. (A non-zero status indicates failure.)
59 */
60UsbGnubbyFactory.prototype.notEnrolledPrerequisiteCheck =
61    function(gnubby, appIdHash, cb) {
62  cb(DeviceStatusCodes.OK_STATUS, gnubby);
63};
64