| <!doctype HTML> |
| <html> |
| <meta charset="utf8"> |
| <title>Display Locking: focus on styled element</title> |
| <link rel="author" title="Rakina Zata Amni" href="mailto:rakina@chromium.org"> |
| <link rel="help" href="https://drafts.csswg.org/css-contain/#content-visibility"> |
| <meta name="assert" content="focus does not target display-none but hidden elements"> |
| |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| |
| <div id="container" style="content-visibility: auto"> |
| <div id="focusable1" tabIndex="0"> |
| focusable thing |
| </div> |
| <div id="displayNoneParent"> |
| <div id="focusable2" tabIndex="0"> |
| focusable thing |
| </div> |
| </div> |
| </div> |
| |
| <script> |
| test(() => { |
| focusable1.style.display = "none"; |
| focusable1.focus(); |
| assert_not_equals(document.activeElement, focusable1); |
| |
| displayNoneParent.style.display = "none"; |
| focusable2.focus(); |
| assert_not_equals(document.activeElement, focusable2); |
| }, "Trying to focus on an element in a hidden subtree with display none will not work"); |
| </script> |
| </html> |
