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<!DOCTYPE html>
<title>Service Worker: postMessage to Client</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/test-helpers.sub.js"></script>
<script>
var frame;
var t = async_test('postMessage MessagePorts from ServiceWorker to Client');
t.step(function() {
var scope = 'resources/blank.html'
service_worker_unregister_and_register(
t, 'resources/postmessage-msgport-to-client-worker.js', scope)
.then(function(registration) {
return wait_for_state(t, registration.installing, 'activated');
})
.then(function() { return with_iframe(scope); })
.then(function(f) {
frame = f;
var w = frame.contentWindow;
w.navigator.serviceWorker.onmessage = t.step_func(onMessage);
w.navigator.serviceWorker.controller.postMessage('ping');
})
.catch(unreached_rejection(t));
var result = [];
var expected = [
'Acking value: 1',
'Acking value: 2',
];
function onMessage(e) {
var message = e.data;
if ('port' in message) {
var port = message.port;
port.postMessage({value: 1});
port.postMessage({value: 2});
port.postMessage({done: true});
} else if ('ack' in message) {
result.push(message.ack);
} else if ('done' in message) {
assert_array_equals(
result, expected,
'Worker should post back expected values via MessagePort.');
frame.remove();
service_worker_unregister_and_done(t, scope);
} else {
assert_unreached('Got unexpected message from ServiceWorker');
}
}
});
</script>
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