| <!DOCTYPE html> <!-- webkit-test-runner [ MockScrollbarsEnabled=false AsyncOverflowScrollingEnabled=true ] --> |
| <html> |
| <head> |
| <style> |
| body { |
| height: 1000px; |
| } |
| .scroller { |
| margin: 10px; |
| width: 200px; |
| height: 200px; |
| border: 1px solid black; |
| overflow: auto; |
| } |
| .contents { |
| width: 100%; |
| height: 200%; |
| } |
| </style> |
| <script src="../../../../resources/js-test-pre.js"></script> |
| <script src="../../../../resources/ui-helper.js"></script> |
| |
| <script> |
| jsTestIsAsync = true; |
| |
| if (window.internals) |
| internals.setUsesOverlayScrollbars(true); |
| |
| async function doTest() |
| { |
| description('Test maybegin and cancelled on overflow'); |
| if (!window.internals) { |
| finishJSTest(); |
| return; |
| } |
| |
| const scroller = document.querySelector('.scroller'); |
| const scrollerBounds = scroller.getBoundingClientRect(); |
| const x = scrollerBounds.left + 10; |
| const y = scrollerBounds.top + 10; |
| |
| debug('Initial state'); |
| debug(internals.verticalScrollbarState(scroller)); |
| |
| debug('MayBegin should show the scrollbar'); |
| await UIHelper.mouseWheelMayBeginAt(x, y); |
| await UIHelper.waitForCondition(() => { |
| let state = internals.verticalScrollbarState(scroller); |
| let visible = state.indexOf('visible_thumb') != -1; |
| if (visible) |
| testPassed('Scrollbar state: ' + state); |
| return visible; |
| }); |
| |
| debug('Cancelled should hide the scrollbar'); |
| await UIHelper.mouseWheelCancelAt(x, y); |
| |
| await UIHelper.waitForCondition(() => { |
| let state = internals.verticalScrollbarState(scroller); |
| let hidden = state.indexOf('visible_thumb') == -1; |
| if (hidden) |
| testPassed('Scrollbar state: ' + state); |
| return hidden; |
| }); |
| |
| finishJSTest(); |
| } |
| |
| window.addEventListener('load', () => { |
| doTest(); |
| }, false); |
| </script> |
| </head> |
| <body> |
| <div class="scroller"> |
| <div class="contents"></div> |
| </div> |
| <div id="console"></div> |
| <script src="../../../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
