| <!DOCTYPE html> |
| <title>Scroll snap on Element.focus()</title> |
| <link rel="help" href="https://drafts.csswg.org/css-scroll-snap/" /> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <style> |
| div { |
| position: absolute; |
| margin: 0; |
| } |
| |
| #scroller { |
| height: 500px; |
| width: 500px; |
| overflow-y: scroll; |
| scroll-snap-type: y mandatory; |
| } |
| |
| .snap { |
| width: 100%; |
| height: 300px; |
| top: 100px; |
| left: 0; |
| background-color: green; |
| scroll-snap-align: start none; |
| } |
| |
| .no-snap { |
| width: 100%; |
| height: 300px; |
| top: 100px; |
| left: 0; |
| background-color: red; |
| } |
| |
| .area { |
| width: 100%; |
| height: 2000px; |
| } |
| </style> |
| |
| <div id="scroller"> |
| <div class="area"></div> |
| <div class="snap" style="top: 0px;"></div> |
| <div class="no-snap" style="top: 1000px;" tabindex=-1></div> |
| <div class="snap" style="top: 1200px;"></div> |
| </div> |
| |
| <script> |
| test(t => { |
| document.querySelector(".no-snap").focus(); |
| window.requestAnimationFrame(t.step_func_done(() => { |
| assert_equals(scroller.scrollTop, 1200); |
| })); |
| }, "scroll snap should happens on Element.focus()"); |
| |
| </script> |
