| <!DOCTYPE html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/resources/testdriver.js"></script> |
| <script src="/resources/testdriver-vendor.js"></script> |
| <script src="../resources/orientation-event-helpers.js"></script> |
| <script> |
| 'use strict'; |
| |
| promise_test(async (t) => { |
| const helper = new SensorTestHelper(t, 'devicemotion'); |
| await helper.grantSensorsPermissions(); |
| await helper.initializeSensors(); |
| |
| const motionData = generateMotionData(1.1, 2.1, 3.1, |
| 1.2, 2.2, 3.2, |
| 1.3, 2.3, 3.3); |
| |
| let firstListener = null; |
| let secondListener = null; |
| let firstEventCount = 0; |
| let firstPromise = new Promise(resolve => { |
| firstListener = (event) => { |
| assert_true(event instanceof DeviceMotionEvent, 'event is DeviceMotionEvent'); |
| assert_equals(event.type, 'devicemotion', 'event.type is devicemotion'); |
| assert_true(event.target instanceof Window, 'event is fired on the window object'); |
| assertEventEquals(event, getExpectedMotionEvent(motionData)); |
| window.removeEventListener('devicemotion', firstListener); |
| if (++firstEventCount == 1) { |
| window.addEventListener('devicemotion', secondListener); |
| } |
| resolve(event); |
| }; |
| }); |
| |
| let secondEventCount = 0; |
| let secondPromise = new Promise(resolve => { |
| secondListener = (event) => { |
| assertEventEquals(event, getExpectedMotionEvent(motionData)); |
| window.removeEventListener('devicemotion', secondListener); |
| ++secondEventCount; |
| resolve(event); |
| }; |
| }); |
| |
| await helper.setData(motionData); |
| window.addEventListener('devicemotion', firstListener); |
| await firstPromise; |
| await secondPromise; |
| assert_equals(firstEventCount, 1, "Too many events fired for the first listener"); |
| assert_equals(secondEventCount, 1, "Too many events fired for the second listener"); |
| }, 'Tests that adding a new devicemotion event listener from a callback works as expected.'); |
| </script> |