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<!DOCTYPE html>
<meta charset="utf-8">
<title>Sending a message through PresentationConnection</title>
<link rel="help" href="http://w3c.github.io/presentation-api/#sending-a-message-through-presentationconnection">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="common.js"></script>
<script src="support/stash.js"></script>
<p>Click the button below and select the available presentation display, to start the manual test.</p>
<button id="presentBtn">Start Presentation Test</button>
<script>
setup({explicit_timeout: true});
const message1 = '1st';
const message2 = '2nd';
const message3 = new Uint8Array([51, 114, 100]); // "3rd"
const message4 = new Uint8Array([52, 116, 104]); // "4th"
const message5 = new Uint8Array([108, 97, 115, 116]); // "last"
const toUint8Array = buf => {
return buf instanceof ArrayBuffer ? new Uint8Array(buf) : buf;
}
// compare two ArrayBuffer or Uint8Array
const compare = (a, b) => {
const p = toUint8Array(a);
const q = toUint8Array(b);
return !!p && !!q && p.every((item, index) => { return item === q[index]; });
};
let connection;
const presentBtn = document.getElementById('presentBtn');
presentBtn.onclick = () => {
presentBtn.disabled = true;
const stash = new Stash(stashIds.toController, stashIds.toReceiver);
const request = new PresentationRequest('support/PresentationConnection_send_receiving-ua.html');
let eventWatcher;
promise_test(t => {
t.add_cleanup(() => {
connection.onconnect = () => { connection.terminate(); };
if (connection.state === 'closed')
request.reconnect(connection.id);
else
connection.terminate();
});
return request.start().then(c => {
// enable timeout again, cause no user action is needed from here.
t.step_timeout(() => {
t.force_timeout();
t.done();
}, 3000);
connection = c;
eventWatcher = new EventWatcher(t, connection, 'connect');
return eventWatcher.wait_for('connect');
}).then(() => {
return stash.init();
}).then(() => {
stash.send({ type: 'ok' });
eventWatcher = new EventWatcher(t, connection, 'message');
return eventWatcher.wait_for('message');
}).then(evt => {
assert_true(typeof evt.data === 'string' && evt.data === message1, 'send a string correctly');
return eventWatcher.wait_for('message');
}).then(evt => {
assert_true(typeof evt.data === 'string' && evt.data === message2, 'send a string correctly');
return eventWatcher.wait_for('message');
}).then(evt => {
assert_true(evt.data instanceof ArrayBuffer && compare(evt.data, message3), 'send a Blob correctly');
return eventWatcher.wait_for('message');
}).then(evt => {
assert_true(evt.data instanceof ArrayBuffer && compare(evt.data, message4), 'send an ArrayBuffer correctly');
return eventWatcher.wait_for('message');
}).then(evt => {
assert_true(evt.data instanceof ArrayBuffer && compare(evt.data, message5), 'send an ArrayBufferView correctly');
return stash.send({ type: 'ok' });
}).then(() => {
return stash.receive();
}).then(data => {
const result = JSON.parse(data);
if (!result.type || result.type !== 'error')
assert_unreached('an InvalidStateError is thrown if the state is "closed"');
else
assert_throws_dom('InvalidStateError', () => {
throw new DOMException(result.message, result.name);
}, 'an InvalidStateError is thrown if the state is "closed"');
});
});
};
</script>