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<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="resources/shadow-dom.js"></script>
<script src="resources/focus-utils.js"></script>
<template id="custom-radio">
<span aria-role="radio" tabindex="0">🔘</span>
<slot></slot>
</template>
<div tabindex="0" id="start">OUT</div>
<form>
<custom-radio name="radio" id="A">A</x-radio>
<custom-radio name="radio" id="B">B</x-radio>
</form>
<form>
<custom-radio name="radio" id="C">C</x-radio>
<custom-radio name="radio" id="D">D</x-radio>
</form>
<div tabindex="0" id="end">OUT</div>
<script>
const template = document.querySelector('#custom-radio');
class CustomRadio extends HTMLElement {
constructor() {
super();
this.attachShadow({ mode: 'open', delegatesFocus: true }).appendChild(
template.content.cloneNode(true),
);
}
}
customElements.define('custom-radio', CustomRadio);
async function assert_web_component_focus_navigation_forward(elements) {
let start = document.getElementById(elements[0]);
start.focus();
for (let i = 1; i < elements.length; i++) {
await navigateFocusForward();
assert_equals(document.activeElement.id, elements[i]);
}
}
async function assert_web_component_focus_navigation_backward(elements) {
let end = document.getElementById(elements[elements.length - 1]);
end.focus();
for (let i = elements.length - 2; i >= 0; i--) {
await navigateFocusBackward();
assert_equals(document.activeElement.id, elements[i]);
}
}
promise_test(async () => {
let elements = [
'start',
'A',
'B',
'C',
'D',
'end'
];
await assert_web_component_focus_navigation_forward(elements);
await assert_web_component_focus_navigation_backward(elements);
}, 'Focus for web component input type elements should be bound by <form> inside shadow DOM');
</script>
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