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WebKit export of https://bugs.webkit.org/show_bug.cgi?id=285811 #50235

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Jan 23, 2025
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WebKit export of https://bugs.webkit.org/show_bug.cgi?id=285811 #50235

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32 changes: 32 additions & 0 deletions html/semantics/popovers/popover-focus-2.html
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Original file line number Diff line number Diff line change
Expand Up @@ -173,3 +173,35 @@
assert_equals(document.activeElement,otherElement,'focus does not move because it was not inside the popover');
}, "Popover focus only returns to invoker when focus is within the popover");
</script>

<div id=no-focus-candidate>
<button popovertarget=no-focus-candidate-p tabindex="0">Toggle popover</button>
<div popover id=no-focus-candidate-p>
Popover with <button tabindex="0" popovertarget=no-focus-candidate-p2>focusable element</button>
<div popover id=no-focus-candidate-p2>Nested popover with <button tabindex="0">focusable element</button></div>
</div>
</div>
<script>
promise_test(async t => {
const invoker = document.querySelector('#no-focus-candidate>button');
const popover = document.querySelector('#no-focus-candidate>[popover]');
const nestedPopover = document.querySelector('#no-focus-candidate>[popover]>[popover]');
invoker.focus(); // Make sure button is focused.
assert_equals(document.activeElement,invoker);
invoker.click(); // Activate the invoker
assert_true(popover.matches(':popover-open'), 'popover should be invoked by invoker');
assert_equals(document.activeElement,invoker, 'invoker should still be focused');
await sendTab();
assert_equals(document.activeElement,popover.querySelector('button'),'next up is the popover');
await sendEnter(); // Show nested popover
assert_true(nestedPopover.matches(':popover-open'), 'nested popover should be invoked by invoker');
await sendTab();
assert_equals(document.activeElement, nestedPopover.querySelector('button'), 'focus on the nested popover button');
popover.querySelector('button').disabled = true; // Make the invoker no longer a focus candidate.
await sendShiftTab();
assert_equals(document.activeElement, invoker, 'initial invoker should be focused, nested popover invoker is skipped since it is disabled');
nestedPopover.querySelector('button').focus();
await sendTab();
assert_equals(document.activeElement, document.body, 'no more focusable elements after the button');
}, "Cases where the next focus candidate isn't in the direct parent scope");
</script>
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