| <!DOCTYPE html> |
| <link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#scroll-padding"> |
| <title>Scroll into view for focus respects scroll padding</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <style> |
| #scroller { |
| height: 200px; |
| width: 600px; |
| margin: 50px; |
| scroll-padding: 0 120px; |
| scrollbar-width: none; |
| overflow: auto; |
| border: 1px solid black; |
| } |
| .wide { |
| width: 2000px; |
| } |
| #target { |
| width: 100px; |
| height: 100px; |
| margin: 10px; |
| margin-left: 600px; |
| background-color: silver; |
| } |
| </style> |
| |
| <div id="scroller"> |
| <div class="wide"> |
| <div id="target" tabindex="-1" style="background-color: green"></div> |
| </div> |
| </div> |
| <div id="other-focus" tabindex="-1">Other focus</div> |
| <script> |
| function tick() { |
| return new Promise(resolve => { |
| requestAnimationFrame(() => requestAnimationFrame(resolve)); |
| }); |
| } |
| |
| function reset() |
| { |
| document.getElementById('other-focus').focus(); |
| } |
| |
| let scroller = document.getElementById("scroller"); |
| promise_test(async t => { |
| reset(); |
| scroller.scrollTo(100, 0); |
| await tick(); |
| const target = document.getElementById("target"); |
| target.focus(); |
| await tick(); // Work around WebKit bug. |
| assert_equals(scroller.scrollLeft, 350, "Focus should scroll the target from out under the left scrollpadding"); |
| }, 'Avoid left scroll-padding'); |
| |
| promise_test(async t => { |
| reset(); |
| scroller.scrollTo(600, 0); |
| await tick(); |
| const target = document.getElementById("target"); |
| target.focus(); |
| await tick(); // Work around WebKit bug. |
| assert_equals(scroller.scrollLeft, 350, "Focus should scroll the target from out under the right scrollpadding"); |
| }, 'Avoid right scroll-padding'); |
| </script> |
