FIDO U2F component extension

chrome/browser/resources/cryptotoken/usbgnubbyfactory.js

+// Copyright (c) 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/**
+ * @fileoverview Contains a simple factory for creating and opening usbGnubby
+ * instances.
+ * @author juanlang@google.com (Juan Lang)
+ */
+'use strict';
+
+/**
+ * @param {Gnubbies} gnubbies
+ * @constructor
+ * @implements {GnubbyFactory}
+ */
+function UsbGnubbyFactory(gnubbies) {
+  /** @private {Gnubbies} */
+  this.gnubbies_ = gnubbies;
+  usbGnubby.setGnubbies(gnubbies);
+}
+
+/**
+ * Creates a new gnubby object, and opens the gnubby with the given index.
+ * @param {llGnubbyDeviceId} which The device to open.
+ * @param {boolean} forEnroll Whether this gnubby is being opened for enrolling.
+ * @param {function(number, usbGnubby=)} cb Called with result of opening the
+ *     gnubby.
+ * @param {string=} logMsgUrl the url to post log messages to
+ * @override
+ */
+UsbGnubbyFactory.prototype.openGnubby =
+    function(which, forEnroll, cb, logMsgUrl) {
+  var gnubby = new usbGnubby();
+  gnubby.open(which, function(rc) {
+    cb(rc, gnubby);
+  });
+};
+
+/**
+ * Enumerates gnubbies.
+ * @param {function(number, Array.<llGnubbyDeviceId>)} cb
+ */
+UsbGnubbyFactory.prototype.enumerate = function(cb) {
+  this.gnubbies_.enumerate(cb);
+};