| <!DOCTYPE html> |
| <link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#scroll-margin"> |
| <link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#scroll-padding"> |
| <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1708303"> |
| <link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez"> |
| <link rel="author" href="https://mozilla.org" title="Mozilla"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <style> |
| body { margin: 0 } |
| #scroller { |
| height: 500px; |
| width: 500px; |
| scrollbar-width: none; |
| overflow: scroll; |
| } |
| #target { |
| width: 100px; |
| height: 100px; |
| background-color: blue; |
| scroll-margin: 100px; |
| margin-left: 510px; |
| } |
| </style> |
| |
| <div id="scroller"> |
| <div style="width: 450px; height: 450px;"></div> |
| <div tabindex="0" id="target"></div> |
| <div style="width: 2000px; height: 2000px;"></div> |
| </div> |
| |
| <script> |
| let scroller = document.getElementById("scroller"); |
| let target = document.getElementById("target"); |
| promise_test(async function() { |
| scroller.scrollTo(0, 0); |
| await new Promise(resolve => { |
| scroller.addEventListener("scroll", () => step_timeout(resolve, 0)); |
| document.getElementById("target").focus(); |
| }); |
| assert_true(scroller.scrollTop > 0, "Visibility check should not account for margin"); |
| assert_true(scroller.scrollLeft > 0, "Visibility check should not account for margin"); |
| }); |
| </script> |
