| <!doctype HTML> |
| <html> |
| <meta charset="utf8"> |
| <title>Content Visibility: accessibility</title> |
| <link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org"> |
| <link rel="help" href="https://github.com/WICG/display-locking"> |
| <meta name="assert" content="content-visibility hidden subtree is not exposed to accessibility when added"> |
| |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| |
| <style> |
| .hidden { |
| content-visibility: hidden; |
| } |
| </style> |
| <div id="container"> |
| <div id="target" aria-labelledby="target_label"> |
| target |
| <div id="child"> |
| child |
| </div> |
| <div id="target_label">Label</div> |
| </div> |
| </div> |
| |
| <script> |
| function axElementById(id) { |
| return accessibilityController.accessibleElementById(id); |
| } |
| |
| async_test((t) => { |
| let target = document.getElementById("target"); |
| let axTarget = axElementById("target"); |
| t.step(() => { assert_false(axTarget.isIgnored); }); |
| t.step(() => { assert_equals(axTarget.childrenCount, 3, "When unlocked, nodes in hidden subtree are not ignored"); }); |
| t.step(() => { assert_equals(axTarget.name, "Label"); }); |
| for (let i = 0; i < axTarget.childrenCount; ++i) { |
| const axChild = axTarget.childAtIndex(i); |
| t.step(() => assert_false(axChild.isIgnored)); |
| } |
| |
| target.classList.add("hidden"); |
| requestAnimationFrame(() => requestAnimationFrame(() => { |
| // The ax object for #target got replaced since the layout object changed, so use the new ax object. |
| axTarget = axElementById("target"); |
| axTarget.childrenCount; // Touch children to cause invalidations. Only necessary in web tests. Normally serializer does this. |
| t.step(() => { assert_false(axTarget.isIgnored); }); |
| // Note that when locked, the ignored text nodes don't show up as children; so we expect 2. |
| t.step(() => { assert_equals(axTarget.childrenCount, 2, "When locked, nodes in hidden subtree are visible"); }); |
| t.step(() => { assert_equals(axTarget.name, "Label"); }); |
| for (let i = 0; i < axTarget.childrenCount; ++i) { |
| const axChild = axTarget.childAtIndex(i); |
| t.step(() => assert_true(axChild.isIgnored)); |
| } |
| t.done(); |
| })); |
| }, "When hidden is added, nodes in non-activatable tree are not exposed to accessibility tree"); |
| </script> |
