fire-focusin-focusout.html

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This test has a WPT meta file that expects 5 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /dom/nodes/moveBefore/tentative/fire-focusin-focusout.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>moveBefore should not fire focus events</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<body>

<section id="old_parent">

<button id="button" tabindex="1">Button</button>

</section>

<section id="new_parent">

</section>

<section id="inert_parent" inert>

</section>

<section id="inert_when_not_empty_parent">

</section>

<style>

    #inert_when_not_empty_parent:has(button) {

        display: none;

</style>

<script>

function collect_focusinout_events(t) {

    const collected = [];

    const listener = event => { collected.push(event); };

    document.addEventListener("focusin", listener);

    document.addEventListener("focusout", listener);

    t.add_cleanup(() => document.removeEventListener("focusin", listener));

    t.add_cleanup(() => document.removeEventListener("focusout", listener));

    return collected;

function assert_collected_events_equals(a, b) {

    const eventToString = event => `${event.target.id || event.target.nodeName}.on${event.type}`;

    return assert_array_equals(a.map(eventToString), b.map(eventToString));

test(t => {

    const collected_events = collect_focusinout_events(t);

    const old_parent = document.querySelector("#old_parent");

    const button = document.querySelector("#button");

    t.add_cleanup(() => old_parent.append(button));

    button.focus();

    assert_collected_events_equals(collected_events, [

        {type: "focusin", target: button},

]);

    assert_equals(document.activeElement, button);

    new_parent.moveBefore(button, null);

    assert_collected_events_equals(collected_events, [

        {type: "focusin", target: button},

]);

}, "Don't fire focusin/out when reparenting focused element directly");

test(t => {

    const collected_events = collect_focusinout_events(t);

    const old_parent = document.querySelector("#old_parent");

    const button = document.querySelector("#button");

    t.add_cleanup(() => document.body.append(old_parent));

    button.focus();

    new_parent.moveBefore(old_parent, null);

    assert_collected_events_equals(collected_events, [

        {type: "focusin", target: button},

]);

}, "Don't fire focusin/out when reparenting an element that has focus within");

test(t => {

    const collected_events = collect_focusinout_events(t);

    const old_parent = document.querySelector("#old_parent");

    const button = document.querySelector("#button");

    t.add_cleanup(() => old_parent.append(button));

    button.focus();

    old_parent.moveBefore(button, null);

    assert_collected_events_equals(collected_events, [

        {type: "focusin", target: button},

]);

}, "Don't fire focusin/out when moving to the same parent");

promise_test(async t => {

    const collected_events = collect_focusinout_events(t);

    const old_parent = document.querySelector("#old_parent");

    const inert_parent= document.querySelector("#inert_parent");

    const button = document.querySelector("#button");

    t.add_cleanup(() => old_parent.append(button));

    button.focus();

    inert_parent.moveBefore(button, null);

    assert_collected_events_equals(collected_events, [

        {type: "focusin", target: button}]);

    await new Promise(resolve => requestAnimationFrame(() => requestAnimationFrame(() => resolve())));

    assert_collected_events_equals(collected_events, [

        {type: "focusin", target: button},

        {type: "focusout", target: button},

]);

}, "Don't fire focusin and then correct when moving to an inert subtree");

promise_test(async t => {

    const collected_events = collect_focusinout_events(t);

    const old_parent = document.querySelector("#old_parent");

    const inert_when_not_empty_parent = document.querySelector("#inert_when_not_empty_parent");

    const button = document.querySelector("#button");

    t.add_cleanup(() => old_parent.append(button));

    button.focus();

    inert_when_not_empty_parent.moveBefore(button, null);

    assert_collected_events_equals(collected_events, [

        {type: "focusin", target: button},

]);

    await new Promise(resolve => requestAnimationFrame(() => requestAnimationFrame(() => resolve())));

    assert_collected_events_equals(collected_events, [

        {type: "focusin", target: button},

        {type: "focusout", target: button},

]);

}, "Don't fire focusin and then correct when moving to a tree that is made inert using style");

</script>