| <!DOCTYPE html> <!-- webkit-test-runner [ AsyncOverflowScrollingEnabled=true ] --> |
| <html> |
| <head> |
| <style> |
| body { |
| height: 2000px; |
| } |
| |
| .scroller { |
| width: 620px; |
| height: 120px; |
| border: 1px solid black; |
| overflow-x: scroll; |
| scroll-snap-type: x mandatory; |
| } |
| |
| .contents { |
| width: 200%; |
| } |
| |
| .box { |
| scroll-snap-align: start; |
| width: 100px; |
| height: 100px; |
| margin: 10px; |
| background-color: blue; |
| display: inline-block; |
| } |
| |
| .scroller.changed .box { |
| width: 110px; |
| } |
| |
| </style> |
| <script src="../../../resources/js-test-pre.js"></script> |
| <script src="../../../resources/ui-helper.js"></script> |
| <script> |
| var jsTestIsAsync = true; |
| |
| var scroller; |
| |
| async function scrollTest() |
| { |
| debug(''); |
| debug('Scrolling'); |
| await UIHelper.mouseWheelScrollAt(20, 20, -1, 0, -20, 0); |
| shouldBe('scroller.scrollLeft', '258'); |
| |
| scroller.classList.add('changed'); |
| |
| debug('Scroller should re-snap'); |
| await UIHelper.animationFrame(); |
| shouldBe('scroller.scrollLeft', '278'); |
| |
| finishJSTest(); |
| } |
| |
| window.addEventListener('load', () => { |
| document.body.addEventListener('wheel', () => {}, false); // Force sync scrolling. |
| scroller = document.querySelector('.scroller'); |
| setTimeout(scrollTest, 0); |
| }, false); |
| </script> |
| </head> |
| <body> |
| <div class="scroller"> |
| <div class="contents"> |
| <div class="box"></div> |
| <div class="box"></div> |
| <div class="box"></div> |
| <div class="box"></div> |
| <div class="box"></div> |
| <div class="box"></div> |
| <div class="box"></div> |
| <div class="box"></div> |
| <div class="box"></div> |
| <div class="box"></div> |
| </div> |
| </div> |
| <div id="console"></div> |
| <script src="../../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
