| <!DOCTYPE html> <!-- webkit-test-runner [ AsyncOverflowScrollingEnabled=true ] --> |
| <html> |
| <head> |
| <style> |
| body { |
| height: 2000px; |
| } |
| |
| .container { |
| padding: 10px; |
| margin: 20px; |
| border: 1px solid gray; |
| } |
| |
| .scroller { |
| height: 300px; |
| width: 300px; |
| border: 1px solid black; |
| padding: 5px; |
| overflow: scroll; |
| } |
| .content { |
| width: 200%; |
| height: 300%; |
| } |
| |
| </style> |
| <script src="../../../resources/js-test-pre.js"></script> |
| <script src="../../../resources/ui-helper.js"></script> |
| <script> |
| var jsTestIsAsync = true; |
| |
| var scroller; |
| var sawOverflowScrollWithNegativeOffset = false; |
| |
| async function resetScrollPositions() |
| { |
| scroller.scrollTop = 0; |
| |
| // Wait for scroll events to fire. |
| await UIHelper.renderingUpdate(); |
| |
| sawOverflowScrollWithNegativeOffset = false; |
| } |
| |
| async function doMouseWheelScroll() |
| { |
| eventSender.mouseMoveTo(100, 100); |
| // Scroll down to latch, then up to rubberband. |
| eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -1, "began", "none"); |
| eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -10, "changed", "none"); |
| eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -10, "changed", "none"); |
| eventSender.mouseScrollByWithWheelAndMomentumPhases(0, 12, "changed", "none"); |
| eventSender.mouseScrollByWithWheelAndMomentumPhases(0, 12, "changed", "none"); |
| eventSender.mouseScrollByWithWheelAndMomentumPhases(0, 0, "ended", "none"); |
| await UIHelper.renderingUpdate(); |
| } |
| |
| async function scrollTest() |
| { |
| debug(''); |
| debug('Test rubberband of overflow:scroll inside the non-fast scrollable region'); |
| await resetScrollPositions(); |
| await doMouseWheelScroll(); |
| |
| shouldBecomeEqual('sawOverflowScrollWithNegativeOffset', 'true', finishJSTest); |
| } |
| |
| window.addEventListener('load', () => { |
| let container = document.querySelector('.container'); |
| container.addEventListener('wheel', () => { }, false); |
| |
| scroller = document.querySelector('.scroller'); |
| scroller.addEventListener('scroll', () => { |
| if (scroller.scrollTop < 0) |
| sawOverflowScrollWithNegativeOffset = true; |
| }, false); |
| |
| setTimeout(scrollTest, 0); |
| }, false); |
| </script> |
| </head> |
| <body> |
| <div class="container"> |
| <div class="scroller"> |
| <div class="content"></div> |
| </div> |
| </div> |
| <script src="../../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
