| <!DOCTYPE html> <!-- webkit-test-runner [ useFlexibleViewport=true ] --> |
| |
| <html> |
| <head> |
| <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no"> |
| <script src="../../../resources/js-test-pre.js"></script> |
| <script> |
| jsTestIsAsync = true; |
| |
| function simulateScrollingStart(offsetTop) |
| { |
| return `(function() { |
| uiController.stableStateOverride = false; |
| uiController.immediateScrollToOffset(0, ${offsetTop}); |
| uiController.doAfterPresentationUpdate(function() { |
| uiController.uiScriptComplete(); |
| }); |
| })()`; |
| } |
| |
| function simulateScrollingEnd(offsetTop) |
| { |
| return `(function() { |
| uiController.stableStateOverride = true; |
| uiController.doAfterNextStablePresentationUpdate(function() { |
| uiController.uiScriptComplete(); |
| }); |
| })()`; |
| } |
| |
| var boundingClientRect; |
| var expectedTop; |
| function checkBoundingClientRect(top) |
| { |
| var target = document.getElementById('target'); |
| boundingClientRect = target.getBoundingClientRect(); |
| expectedTop = top; |
| shouldBe('boundingClientRect.top', 'expectedTop'); |
| } |
| |
| function doTest() |
| { |
| checkBoundingClientRect(350); |
| debug('Doing unstable scroll'); |
| testRunner.runUIScript(simulateScrollingStart(500), function() { |
| checkBoundingClientRect(-150); |
| |
| debug('Finishing scroll'); |
| testRunner.runUIScript(simulateScrollingEnd(), function() { |
| checkBoundingClientRect(-150); |
| finishJSTest(); |
| }); |
| }); |
| } |
| |
| window.addEventListener('load', doTest, false); |
| </script> |
| <style> |
| body { |
| height: 5000px; |
| } |
| #target { |
| position: absolute; |
| top: 350px; |
| left: 20px; |
| height: 200px; |
| width: 200px; |
| background-color: gray; |
| } |
| </style> |
| </head> |
| <body> |
| |
| <div id="target"></div> |
| |
| <script src="../../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
