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Test Info:
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<script src="mediaStreamPlayback.js"></script>
</head>
<body>
<script>
"use strict";
createHTML({
// This pref exists only for a partner testing framework without WebDriver
// switch-to-window nor SpecialPowers to set the active window.
// Prefer "focusmanager.testmode".
title: "Test media.devices.unfocused.enabled",
bug: "1740824"
});
const blank_url = "/tests/docshell/test/navigation/blank.html";
async function resolveOnEvent(target, name) {
return new Promise(r => target.addEventListener(name, r, {once: true}));
}
runTest(async () => {
ok(document.hasFocus(), "This test expects initial focus on the document.");
// 'resizable' is requested for a separate OS window on relevant platforms
// so that this test tests OS focus changes rather than document visibility.
const other = window.open(blank_url, "", "resizable");
SimpleTest.registerCleanupFunction(() => {
other.close();
return SimpleTest.promiseFocus(window);
});
await Promise.all([
resolveOnEvent(window, 'blur'),
SimpleTest.promiseFocus(other),
pushPrefs(["media.devices.unfocused.enabled", true]),
]);
ok(!document.hasFocus(), "!document.hasFocus()");
await navigator.mediaDevices.enumerateDevices();
ok(true, "enumerateDevices() completes without focus.");
// The focus requirement with media.devices.unfocused.enabled false
// (default) is tested in
// testing/web-platform/mozilla/tests/mediacapture-streams/enumerateDevices-without-focus.https.html
});
</script>
</body>
</html>