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<!DOCTYPE HTML>
<html>
<head>
<script type="application/javascript" src="pc.js"></script>
</head>
<body>
<pre id="test">
<script type="application/javascript">
createHTML({
title: "PeerConnection using callback functions",
bug: "1119593",
visible: true
});
// This still aggressively uses promises, but it is testing that the callback functions
// are properly in place.
// wrapper that turns a callback-based function call into a promise
function pcall(o, f, beforeArg) {
return new Promise((resolve, reject) => {
var args = [resolve, reject];
if (typeof beforeArg !== 'undefined') {
args.unshift(beforeArg);
}
info('Calling ' + f.name);
f.apply(o, args);
});
}
var pc1 = new RTCPeerConnection();
var pc2 = new RTCPeerConnection();
var pc2_haveRemoteOffer = new Promise(resolve => {
pc2.onsignalingstatechange =
e => (e.target.signalingState == "have-remote-offer") && resolve();
});
var pc1_stable = new Promise(resolve => {
pc1.onsignalingstatechange =
e => (e.target.signalingState == "stable") && resolve();
});
pc1.onicecandidate = e => {
pc2_haveRemoteOffer
.then(() => !e.candidate || pcall(pc2, pc2.addIceCandidate, e.candidate))
.catch(generateErrorCallback());
};
pc2.onicecandidate = e => {
pc1_stable
.then(() => !e.candidate || pcall(pc1, pc1.addIceCandidate, e.candidate))
.catch(generateErrorCallback());
};
runNetworkTest(async function() {
// Tests trigger warnings
await SpecialPowers.pushPrefEnv({
set: [['media.peerconnection.treat_warnings_as_errors', false]]
});
const v1 = createMediaElement('video', 'v1');
const v2 = createMediaElement('video', 'v2');
const delivered = new Promise(resolve => {
pc2.onaddstream = e => {
v2.srcObject = e.stream;
resolve(e.stream);
};
});
var canPlayThrough = new Promise(resolve => v2.canplaythrough = resolve);
is(v2.currentTime, 0, "v2.currentTime is zero at outset");
// not testing legacy gUM here
await navigator.mediaDevices.getUserMedia({ video: true, audio: true })
.then(stream => pc1.addStream(v1.srcObject = stream))
.then(() => pcall(pc1, pc1.createOffer))
.then(offer => pcall(pc1, pc1.setLocalDescription, offer))
.then(() => pcall(pc2, pc2.setRemoteDescription, pc1.localDescription))
.then(() => pcall(pc2, pc2.createAnswer))
.then(answer => pcall(pc2, pc2.setLocalDescription, answer))
.then(() => pcall(pc1, pc1.setRemoteDescription, pc2.localDescription))
.then(() => delivered)
// .then(() => canPlayThrough) // why doesn't this fire?
.then(() => waitUntil(() => v2.currentTime > 0))
.then(() => ok(v2.currentTime > 0, "v2.currentTime is moving (" + v2.currentTime + ")"))
.then(() => ok(true, "Connected."))
.then(() => { v1.pause(); v2.pause(); });
});
</script>
</pre>
</body>
</html>
|
