| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>CSS Overflow Test: focused ::scroll-button() does not crash after becoming display none</title> |
| <link rel="help" href="http://crbug.com/402673873"> |
| <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> |
| #scroller::scroll-button(left) { |
| content: ""; |
| background-color: red; |
| height: 100px; |
| width: 100px; |
| top: 0; |
| left: 0; |
| position: absolute; |
| } |
| |
| #scroller.hide::scroll-button(left) { |
| display: none; |
| } |
| |
| #scroller { |
| width: 300px; |
| height: 300px; |
| overflow: auto; |
| } |
| |
| #filler { |
| height: 20000x; |
| } |
| </style> |
| <div id="scroller"> |
| <div id="filler"></div> |
| </div> |
| <script> |
| promise_test(async t => { |
| await new test_driver.Actions() |
| .pointerMove(15, 15) |
| .pointerDown() |
| .pointerUp() |
| .send(); |
| scroller.className = "hide"; |
| document.documentElement.offsetTop; |
| await new test_driver.Actions() |
| .pointerMove(15, 15) |
| .pointerDown() |
| .pointerUp() |
| .send(); |
| assert_true(true); |
| }); |
| </script> |
