extensions/test/data/api_test/usb/remove_event/background.js

   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 var known_devices = {};
   6
   7 chrome.usb.onDeviceRemoved.addListener(function(device) {
   8   if (device.device in known_devices) {
   9     chrome.test.sendMessage("success");
  10   } else {
  11     console.error("Unexpected device removed: " + device.device);
  12     chrome.test.sendMessage("failure");
  13   }
  14 });
  15
  16 chrome.usb.getDevices({}, function(devices) {
  17   for (var device of devices) {
  18     known_devices[device.device] = device;
  19   }
  20   chrome.test.sendMessage("loaded");
  21 });