| <!DOCTYPE html> <!-- webkit-test-runner [ AsyncOverflowScrollingEnabled=true ] --> |
| <html> |
| <head> |
| <style> |
| body { |
| height: 2000px; |
| } |
| .scroller { |
| position: absolute; |
| top: 310px; |
| left: 10px; |
| height: 300px; |
| width: 300px; |
| border: 20px solid gray; |
| padding: 5px; |
| overflow: scroll; |
| } |
| .content { |
| width: 200%; |
| height: 300%; |
| background-image: linear-gradient(green, orange); |
| background-attachment: fixed; |
| } |
| </style> |
| <script src="../../../resources/js-test-pre.js"></script> |
| <script src="../../../resources/ui-helper.js"></script> |
| <script> |
| var jsTestIsAsync = true; |
| |
| var scroller; |
| var overflowScrollEventCount = 0; |
| |
| async function resetScrollPositions() |
| { |
| window.scrollTo(0, 300); |
| scroller.scrollTop = 0; |
| |
| // Wait for scroll events to fire. |
| await UIHelper.renderingUpdate(); |
| |
| overflowScrollEventCount = 0; |
| } |
| |
| async function testScrollOverContent() |
| { |
| debug(''); |
| debug('Test that scroll over scroller with background-attachment:fixed content works.'); |
| await resetScrollPositions(); |
| await UIHelper.mouseWheelScrollAt(100, 100); |
| |
| shouldBe('overflowScrollEventCount > 0', 'true'); |
| } |
| |
| async function scrollTest() |
| { |
| await testScrollOverContent(); |
| |
| finishJSTest(); |
| } |
| |
| window.addEventListener('load', () => { |
| scroller = document.querySelector('.scroller'); |
| scroller.addEventListener('scroll', () => { |
| ++overflowScrollEventCount; |
| }, false); |
| |
| setTimeout(scrollTest, 0); |
| }, false); |
| </script> |
| </head> |
| <body> |
| <div class="scroller"> |
| <div class="content"></div> |
| </div> |
| <div class="overlapper"></div> |
| <script src="../../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
