| <!-- webkit-test-runner [ UsesBackForwardCache=true ] --> |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <style> |
| #overflowing { |
| width: 200px; |
| height: 200px; |
| margin: 10px; |
| border: 1px solid black; |
| overflow: scroll; |
| } |
| |
| .content { |
| height: 400px; |
| background-image: linear-gradient(white, gray) |
| } |
| </style> |
| <script src="../../resources/ui-helper.js"></script> |
| <script> |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| |
| function logResult(s) |
| { |
| document.getElementById('result').textContent += s + "\n"; |
| } |
| |
| var scrollTopBeforeScroll; |
| var scrollTopAfterScroll; |
| |
| function divScrolled() |
| { |
| scrollTopAfterScroll = document.getElementById('overflowing').scrollTop; |
| } |
| |
| async function testScrollability() |
| { |
| var divTarget = document.getElementById('overflowing'); |
| var divBounds = divTarget.getBoundingClientRect(); |
| |
| scrollTopBeforeScroll = divTarget.scrollTop; |
| logResult('Sending mouseWheel events'); |
| |
| await UIHelper.mouseWheelScrollAt(divBounds.left + 10, divBounds.top + 10, 0, -1, 0, -1); |
| |
| if (scrollTopAfterScroll > scrollTopBeforeScroll) |
| logResult('PASS: mouseWheel caused scrolling'); |
| else |
| logResult('FAIL; mouseWheel did not scroll; scrollTop is ' + scrollTopAfterScroll + ', was ' + scrollTopBeforeScroll); |
| } |
| |
| async function startTest() |
| { |
| if (!window.eventSender) { |
| logResult('This test must be run in DumpRenderTree/WebKitTestRunner'); |
| return; |
| } |
| |
| await testScrollability(); |
| setTimeout(() => { |
| logResult('\nNavigating forward then back\n'); |
| window.location.href = "data:text/html,<body onload='history.back()'></body>"; |
| }, 0); |
| } |
| |
| var showCount = 0; |
| async function pageShowed() |
| { |
| if (++showCount == 2) { |
| await testScrollability(); |
| testRunner.notifyDone(); |
| } |
| } |
| |
| window.addEventListener('load', startTest, false); |
| window.addEventListener('pageshow', pageShowed, false); |
| </script> |
| </head> |
| <body> |
| |
| <div id="overflowing" onscroll="divScrolled()"> |
| <div class="content"> |
| </div> |
| </div> |
| |
| <pre id="result"></pre> |
| </body> |
| </html> |
