<!DOCTYPE html> <html> <title>Test that video.rVFC callbacks started during an XRSession work.</title> <body> <canvas/> </body> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="/common/media.js"></script> <script src="../webxr/resources/webxr_util.js"></script> <script src="../webxr/resources/webxr_test_constants.js"></script> <script> let testFunction = async function(session, fakeDeviceController, t) { let watcherDone = new Event("watcherdone"); let eventWatcher = new EventWatcher(t, session, ["end", "watcherdone"]); let eventPromise = eventWatcher.wait_for(["end", "watcherdone"]); // Start the video.rVFC callbacks while we are in the the XR Session. let video = document.createElement('video'); video.src = getVideoURI('/media/movie_5'); var numberVFCs = 0; let videoCallback = () => { numberVFCs++; video.requestVideoFrameCallback(videoCallback); } video.requestVideoFrameCallback(videoCallback); video.play(); function onXRFrame(time, frame) { if(numberVFCs >= 2) { // Make sure video.rVFCs are coming through before ending the // session. session.end(); } session.requestAnimationFrame(onXRFrame); } function onSessionEnd(event) { // Make sure we are still getting rVFC callbacks after the session end. numberVFCs = 0; t.step_wait_func(() => numberVFCs >= 2, () => session.dispatchEvent(watcherDone), "Time out waiting for VFC callbacks"); } session.addEventListener("end", onSessionEnd, false); session.requestAnimationFrame(onXRFrame); return eventPromise; } xr_session_promise_test('Make sure video.rVFC callbacks started during an immersive session continue after it ends', testFunction, TRACKED_IMMERSIVE_DEVICE, 'immersive-vr'); </script> </html>