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<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/test-only-api.js"></script>
<script src="resources/fake-devices.js"></script>
<script src="resources/usb-helpers.js"></script>
<script>
'use strict';
async function sleep(timeout) {
return new Promise(resolve => {
step_timeout(() => {
resolve();
}, timeout);
});
}
async function connectInIframe() {
let iframe = document.createElement('iframe');
let opened = false;
iframe.src = 'resources/open-in-iframe.html';
document.body.appendChild(iframe);
await navigator.usb.test.attachToContext(iframe);
function nextIFrameMessage() {
return new Promise(resolve => window.addEventListener(
'message', e => resolve(e.data)));
}
iframe.contentWindow.postMessage('ConnectEvent', '*');
assert_equals('Ready', (await nextIFrameMessage()));
let fakeDevice = navigator.usb.test.addFakeDevice(fakeDeviceInit);
let closedPromise = new Promise(resolve => fakeDevice.onclose = resolve)
.then(() => assert_true(opened));
assert_equals('Success', (await nextIFrameMessage()));
opened = true;
return { iframe, closedPromise };
}
usb_test(async () => {
let { iframe, closedPromise } = await connectInIframe();
document.body.removeChild(iframe);
await closedPromise;
}, 'detaching iframe disconnects device.');
usb_test(async () => {
let { iframe, closedPromise } = await connectInIframe();
iframe.src = 'about:blank';
await closedPromise;
}, 'navigating iframe disconnects device.');
usb_test(async (t) => {
let iframe = document.createElement('iframe');
iframe.src = 'resources/open-in-iframe.html';
iframe.allow = 'usb \'none\'';
await Promise.all([
new Promise(resolve => {
document.body.appendChild(iframe);
iframe.addEventListener('load', resolve);
}),
// This will wait for ReadyForAttachment event from iframe loading.
navigator.usb.test.attachToContext(iframe),
]);
let messageWatcher = new EventWatcher(t, window, 'message');
iframe.contentWindow.postMessage('ConnectEvent', '*');
let messageEvent = await messageWatcher.wait_for('message');
assert_equals(messageEvent.data, 'Ready');
// This isn't necessary as the expected scenario shouldn't send any mojo
// request. However, in order to capture a bug that doesn't reject adding
// event listener, time delay here is to allow mojo request to be intercepted
// after iframe adding connect event listener.
await sleep(100);
// If device connect event fires, EventWatcher will assert for an unexpected
// event.
navigator.usb.test.addFakeDevice(fakeDeviceInit);
// Time delay here is to allow event to be fired if any.
await sleep(100);
}, 'Connect event is not fired in iframe with usb disallowed.');
</script>
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