| <!DOCTYPE html> |
| |
| <html lang="en"> |
| <head> |
| <style type="text/css" media="screen"> |
| body { |
| height: 2600px; |
| } |
| |
| .container { |
| width: 200px; |
| height: 200px; |
| margin: 10px; |
| overflow: auto; |
| border: 10px solid black; |
| } |
| |
| .inner { |
| width: 100px; |
| height: 2200px; |
| padding: 5px; |
| font-size: 18pt; |
| background-color: green; |
| } |
| |
| .compositing { |
| position: absolute; |
| top: 21px; |
| left: 21px; |
| width: 100px; |
| height: 100px; |
| -webkit-transform: translateZ(0); |
| } |
| |
| p { |
| font: 1em/1 Ahem, sans-serif; |
| } |
| |
| p.middle { |
| position: absolute; |
| top: 10%; |
| } |
| |
| p.bottom { |
| position: absolute; |
| bottom: 0; |
| } |
| </style> |
| <script type="text/javascript" charset="utf-8"> |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| |
| function doTest() |
| { |
| var scrollables = document.querySelectorAll('.container'); |
| for (var i = 0; i < scrollables.length; ++i) |
| scrollables[i].scrollTop = 100; |
| |
| if (window.testRunner) { |
| document.getElementById('layers').innerText = window.internals.layerTreeAsText(document); |
| testRunner.notifyDone(); |
| } |
| } |
| |
| window.addEventListener('load', doTest, false); |
| </script> |
| </head> |
| |
| <body> |
| |
| <!-- Go into compositing. --> |
| <div class="compositing"></div> |
| |
| <!-- "middle" text should be visible --> |
| <div class="container" style="position: relative; overflow: hidden;"> |
| <div class="inner" style="position: relative;"> |
| <p class="top">top</p> |
| <p class="middle">middle</p> |
| <p class="bottom">bottom</p> |
| </div> |
| </div> |
| |
| <!-- Vertical scrollbar should be visible --> |
| <!-- "middle" text should be visible --> |
| <!-- "inner" should use a tiled layer --> |
| <div class="container" style="position: relative;"> |
| <div class="inner" style="position: relative;"> |
| <p class="top">top</p> |
| <p class="middle">middle</p> |
| <p class="bottom">bottom</p> |
| </div> |
| </div> |
| |
| <pre id="layers">Layer tree goes here in DRT</pre> |
| |
| </body> |
| </html> |
