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

   1 // Copyright 2015 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 device_from_user = undefined;
   6
   7 chrome.test.runWithUserGesture(function() {
   8   chrome.usb.getDevices({}, function(devices) {
   9     chrome.test.assertEq(0, devices.length);
  10     chrome.usb.getUserSelectedDevices({ multiple: false }, function(devices) {
  11       chrome.test.assertEq(1, devices.length);
  12       device_from_user = devices[0];
  13       chrome.usb.openDevice(device_from_user, function(connection) {
  14         chrome.usb.closeDevice(connection);
  15         chrome.test.sendMessage("opened_device");
  16       });
  17     });
  18   });
  19 });
  20
  21 chrome.usb.onDeviceRemoved.addListener(function(device) {
  22   if (device.device == device_from_user.device) {
  23     chrome.test.sendMessage("success");
  24   } else {
  25     chrome.test.sendMessage("failure");
  26   }
  27 });