extensions/test/data/api_test/hid/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;
   6
   7 chrome.test.runWithUserGesture(function() {
   8   chrome.hid.getDevices({}, function(devices) {
   9     chrome.test.assertNoLastError();
  10     chrome.test.assertEq(0, devices.length);
  11     chrome.hid.getUserSelectedDevices({ multiple: false }, function(devices) {
  12       chrome.test.assertNoLastError();
  13       chrome.test.assertEq(1, devices.length);
  14       device_from_user = devices[0];
  15       chrome.hid.connect(device_from_user.deviceId, function(connection) {
  16         chrome.test.assertNoLastError();
  17         chrome.hid.disconnect(connection.connectionId);
  18         chrome.test.sendMessage("opened_device");
  19       });
  20     });
  21   });
  22 });
  23
  24 chrome.hid.onDeviceRemoved.addListener(function(deviceId) {
  25   chrome.test.assertEq(device_from_user.deviceId, deviceId);
  26   chrome.test.sendMessage("removed");
  27 });
  28
  29 chrome.hid.onDeviceAdded.addListener(function(device) {
  30   chrome.test.assertTrue(device_from_user.deviceId != device.deviceId);
  31   chrome.test.assertEq(device_from_user.vendorId, device.vendorId);
  32   chrome.test.assertEq(device_from_user.productId, device.productId);
  33   chrome.test.sendMessage("added");
  34 });