| <!DOCTYPE html> <!-- webkit-test-runner [ useFlexibleViewport=true internal:AsyncOverflowScrollingEnabled=true internal:AsyncFrameScrollingEnabled=true ] --> |
| <html> |
| <head> |
| <meta name="viewport" content="initial-scale=1.0"> |
| <style> |
| .scroller { |
| margin: 10px; |
| height: 300px; |
| width: 300px; |
| border: 1px solid black; |
| overflow: scroll; |
| will-change: transform; |
| } |
| |
| .fixed { |
| position: fixed; |
| top: 0px; |
| width: 200px; |
| height: 200px; |
| background-color: green; |
| } |
| |
| .container { |
| top: 0px; |
| margin: 40px; |
| border: 2px solid red; |
| width: 200px; |
| height: 5000px; |
| position: absolute; |
| will-change: transform; |
| } |
| .spacer { |
| height: 1000px; |
| border: 2px solid blue; |
| |
| } |
| </style> |
| <script src="../../resources/ui-helper.js"></script> |
| <script> |
| if (window.testRunner) |
| testRunner.waitUntilDone(); |
| |
| async function doTest() |
| { |
| if (!window.testRunner) |
| return; |
| |
| if (!testRunner.runUIScript) |
| return; |
| |
| await UIHelper.ensurePresentationUpdate(); |
| document.querySelector('.scroller').scrollTo(0, 200); |
| await UIHelper.ensurePresentationUpdate(); |
| |
| testRunner.notifyDone(); |
| } |
| |
| window.addEventListener('load', doTest, false); |
| </script> |
| </head> |
| <body> |
| <div class="scroller"> |
| <div class="container"> |
| <div class="fixed"></div> |
| </div> |
| <div class="spacer"></div> |
| </div> |
| </body> |
| </html> |
