| <!doctype HTML> |
| <html> |
| <meta charset="utf8"> |
| <title>Display Locking: scroll / viewport intersections activate locked element</title> |
| <link rel="author" title="Rakina Zata Amni" href="mailto:rakina@chromium.org"> |
| <link rel="help" href="https://github.com/WICG/display-locking"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="../resources/utils.js"></script> |
| |
| <div id=visible rendersubtree="invisible">text</div> |
| <div id=spacer style="height: 3000px">text</div> |
| <div id=target rendersubtree="invisible">text</div> |
| |
| <script> |
| promise_test(() => { |
| return new Promise((resolve, reject) => { |
| requestAnimationFrame(() => { |
| requestAnimationFrame(() => { |
| assert_equals(visible.renderSubtree, "", "visible activated"); |
| window.scrollBy(0, 3000); |
| requestAnimationFrame(() => { |
| assert_equals(target.renderSubtree, "", "target activated"); |
| resolve(); |
| }); |
| }); |
| }); |
| }); |
| }, "Scroll activates elements"); |
| </script> |
