| <!DOCTYPE html> <!-- webkit-test-runner [ internal:AsyncOverflowScrollingEnabled=true ] --> |
| <html> |
| <head> |
| <style> |
| .container { |
| height: 200px; |
| width: 200px; |
| border: 1px solid black; |
| overflow: scroll; |
| } |
| .contents { |
| height: 500px; |
| width: 500px; |
| background-color: silver; |
| } |
| </style> |
| <script src="../../resources/js-test-pre.js"></script> |
| <script> |
| jsTestIsAsync = true; |
| description("Tests a programmatic scroll to a negative offset does not result in negative scrollLeft/scrollTop"); |
| |
| var scroller; |
| function doScroll() |
| { |
| scroller = document.getElementById('scroller'); |
| scroller.scrollLeft = 50; |
| |
| scroller.addEventListener('scroll', (event) => { |
| shouldBe("scroller.scrollLeft", "0"); |
| shouldBe("scroller.scrollLeft", "0"); |
| finishJSTest(); |
| }, false); |
| |
| setTimeout(() => { |
| scroller.scrollLeft = -200; |
| scroller.scrollTop = -100; |
| }, 0) |
| } |
| window.addEventListener('load', doScroll, false); |
| </script> |
| </head> |
| <body> |
| <div id="scroller" class="container"> |
| <div class="contents"> |
| </div> |
| </div> |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
