| <!-- webkit-test-runner [ useThreadedScrolling=false ] --> |
| <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" |
| "http://www.w3.org/TR/html4/loose.dtd"> |
| |
| <html lang="en"> |
| <head> |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> |
| <title>Composited scrolling creates a stacking context.</title> |
| <style type="text/css" media="screen"> |
| .container { |
| width: 200px; |
| height: 200px; |
| overflow: scroll; |
| margin: 20px; |
| border: 1px solid black; |
| } |
| |
| .composited { |
| width: 200px; |
| height: 150px; |
| -webkit-transform: translateZ(0); |
| background-color: green; |
| } |
| |
| .not-composited { |
| width: 200px; |
| height: 150px; |
| background-color: blue; |
| } |
| |
| .in-flow-positioned { |
| position: relative; |
| display: block; |
| } |
| |
| .fixed { |
| z-index: -1; |
| position: absolute; |
| width: 200px; |
| height: 300px; |
| background-color: red; |
| } |
| </style> |
| <script type="text/javascript" charset="utf-8"> |
| if (window.testRunner) |
| testRunner.dumpAsText(); |
| |
| if (window.internals) |
| window.internals.settings.setAcceleratedCompositingForOverflowScrollEnabled(true); |
| |
| function doTest() |
| { |
| document.body.offsetTop; |
| |
| if (window.internals) { |
| var layerTree = window.internals.layerTreeAsText(document); |
| var pre = document.getElementById('console'); |
| var text = document.createTextNode(layerTree + '\n'); |
| pre.appendChild(text); |
| } |
| } |
| |
| window.addEventListener('load', doTest, false); |
| </script> |
| </head> |
| <body> |
| <div class="container"> |
| <div class="in-flow-positioned"> |
| <div class="fixed"></div> |
| </div> |
| <div class="composited"></div> |
| <div class="not-composited"></div> |
| </div> |
| <pre id="console"></pre> |
| </body> |
| </html> |
| |
