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<!doctype html>
<meta charset="utf-8">
<title>dialog element: focusability</title>
<link rel=help href="https://github.com/whatwg/html/pull/8199">
<link rel=author href="mailto:masonf@chromium.org">
<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>
<button id="before">before</button>
<dialog id="dialog1" open>
<button id="within1">button</button>
</dialog>
<button id="after1">after 1</button>
<dialog tabindex=0 id="dialog2" open>
<button id="within2">button</button>
</dialog>
<button id="after2">after 2</button>
<dialog tabindex="-1" id="dialog3" open>
<button id="within3">button</button>
</dialog>
<button id="after3">after 3</button>
<dialog contenteditable="true" id="dialog4" open>
<button id="within4">button</button>
</dialog>
<button id="after4">after 4</button>
<style>
#dialog1 { top: 25px; }
#dialog2 { top: 100px; }
#dialog3 { top: 175px; }
#dialog4 { top: 250px; }
</style>
<script>
function navigateForward() {
const TAB = '\ue004';
return test_driver.send_keys(document.body, TAB);
}
async function assert_focus_order(elements) {
assert_true(elements.length >= 2);
elements[0].focus();
for(let i=0;i<elements.length;++i) {
assert_equals(document.activeElement,elements[i],`Focus order mismatch at step ${i+1}/${elements.length}`);
await navigateForward();
}
}
promise_test(async () => {
await new Promise(resolve => window.onload = resolve);
await assert_focus_order([before,within1,after1,dialog2,within2,after2,
within3,after3,dialog4,within4,after4]);
}, "The dialog element itself should not be keyboard focusable.");
</script>
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