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<!DOCTYPE HTML>
<meta charset="UTF-8">
<title>CSS Toggles: focusability of elements with toggle-trigger</title>
<link rel="author" title="L. David Baron" href="https://dbaron.org/">
<link rel="author" title="Google" href="http://www.google.com/">
<link rel="help" href="https://tabatkins.github.io/css-toggle/#toggle-trigger-property">
<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="support/toggle-helpers.js"></script>
<div id="test"></div>
<script>
// From shadow-dom/focus/resources/shadow-utils.js
function navigateFocusForward() {
// TAB = '\ue004'
return test_driver.send_keys(document.body, "\ue004");
}
let container = document.getElementById("test");
promise_test(async test => {
container.innerHTML = `
<input id="input" type="text">
<div id="e1" style="toggle-root: tab"></div>
<div id="e2" style="toggle-trigger: tab"></div>
<div id="e3" style="toggle-trigger: tab"></div>
<div id="e4" style="toggle-trigger: nonexistent"></div>
`;
let input = document.getElementById("input");
let e1 = document.getElementById("e1");
let e2 = document.getElementById("e2");
let e3 = document.getElementById("e3");
let e4 = document.getElementById("e4");
await wait_for_toggle_creation(e1);
input.focus();
assert_equals(document.activeElement, input);
await navigateFocusForward();
assert_equals(document.activeElement, e2);
await navigateFocusForward();
assert_equals(document.activeElement, e3);
await navigateFocusForward();
assert_equals(document.activeElement, e4);
}, "elements with toggle-trigger are tabbable");
</script>
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