| <!doctype html> |
| <meta charset="utf-8"> |
| <title>CSS Test: ::scroll-marker on scroll container</title> |
| <link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-activation"> |
| <script src="/dom/events/scrolling/scroll_support.js"></script> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/resources/testdriver.js"></script> |
| <script src="/resources/testdriver-actions.js"></script> |
| <script src="/resources/testdriver-vendor.js"></script> |
| <style> |
| body { |
| margin: 0; |
| } |
| |
| #marker-scroller { |
| border: 2px solid gray; |
| width: 600px; |
| height: 300px; |
| overflow: auto; |
| scroll-snap-type: x mandatory; |
| position: relative; |
| scroll-marker-group: before; |
| white-space: nowrap; |
| } |
| |
| #marker-scroller > div { |
| scroll-snap-align: start; |
| box-sizing: border-box; |
| border-radius: 5px; |
| background: lightgray; |
| border: 1px solid black; |
| display: inline-block; |
| width: 500px; |
| height: 100%; |
| scroll-padding: 16px; |
| overflow: auto; |
| } |
| |
| .content { |
| height: 1000px; |
| } |
| |
| #marker-scroller::scroll-marker-group { |
| display: flex; |
| height: 100px; |
| } |
| |
| #marker-scroller > div::scroll-marker { |
| content: ""; |
| width: 100px; |
| height: 100px; |
| box-sizing: border-box; |
| border-radius: 5px; |
| border: 1px solid black; |
| display: inline-block; |
| } |
| #marker-scroller > div::scroll-marker:target-current { |
| background: blue; |
| } |
| </style> |
| <div id="marker-scroller"> |
| <div><div class="content">1</div></div> |
| <div id="target"><div class="content">2</div></div> |
| <div><div class="content">3</div></div> |
| </div> |
| <script> |
| promise_test(async t => { |
| const target = document.querySelector('#target'); |
| const scroller = document.querySelector('#marker-scroller'); |
| const innerScroller = document.querySelector('#target'); |
| innerScroller.scrollTop = 100; |
| const scrollEndPromise = waitForScrollEndFallbackToDelayWithoutScrollEvent(scroller); |
| actions_promise = new test_driver.Actions() |
| .pointerMove(150, 50) |
| .pointerDown() |
| .pointerUp() |
| .send(); |
| await actions_promise; |
| await scrollEndPromise; |
| assert_equals(scroller.scrollLeft, target.offsetLeft, "::scroll-marker activation scrolls to target"); |
| assert_equals(innerScroller.scrollTop, 100, "::scroll-marker activation doesn't scroll marker's inner scroll container"); |
| }); |
| </script> |
