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  • This test ran 965 times in the preceding 7 days with an average run time of 0.63 secs.
<!DOCTYPE html>
<meta charset="utf-8">
<title>HTML Test: focus - the sequential focus navigation order with shadow dom and all tabindex=0 except host (tabindex=1)</title>
<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/shadow-utils.js"></script>
// Structure:
// <div #aboveHost tabindex=0>
// <div #host tabindex=1>
// #shadowRoot
// <div #aboveSlot tabindex=0>
// <slot #slotAbove tabindex=0>
// (slotted) <div #slottedAbove tabindex=0>
// <slot #slotBelow tabindex=0>
// (slotted) <div #slottedBelow tabindex=0>
// <div #belowSlot tabindex=0>
// <div #belowHost tabindex=0>
promise_test(() => {
let elementsInFlatTreeOrder;
let [aboveHost, host, aboveSlot, slotAbove, slottedAbove, slotBelow, slottedBelow, belowSlot, belowHost] =
elementsInFlatTreeOrder = prepareDOM(document.body, false);
setTabIndex(elementsInFlatTreeOrder, 0);
host.tabIndex = 1;
// Focus should move first to #host because it has tabindex=1, and then to the contents of its scope
// (e.g. the contents of its shadow tree) in flat tree order, and then outside to the document scope
// again (aboveHost & belowHost).
return assertFocusOrder([host, aboveSlot, slottedAbove, slottedBelow, belowSlot, aboveHost, belowHost]);
}, "Order when all tabindex=0 except for host, which has tabindex=1");