| <!DOCTYPE html> |
| <html lang="en"> |
| <head> |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> |
| <title>Composited scrolling paint phases</title> |
| <style type="text/css" media="screen"> |
| .container { |
| width: 200px; |
| height: 200px; |
| overflow: scroll; |
| margin: 20px; |
| border: 1px solid black; |
| } |
| |
| .composited { |
| width: 80px; |
| height: 10px; |
| position: relative; |
| top: 10px; |
| transform: translateZ(0); |
| background-color: green; |
| z-index: -1; |
| } |
| |
| .not-composited { |
| width: 80px; |
| height: 20px; |
| margin: 5px; |
| background-color: blue; |
| } |
| </style> |
| <script> |
| if (window.testRunner) |
| testRunner.dumpAsText(); |
| |
| if (window.internals) |
| internals.settings.setPreferCompositingToLCDTextEnabled(true); |
| |
| function write(str) |
| { |
| var pre = document.getElementById('console'); |
| var text = document.createTextNode(str + '\n'); |
| pre.appendChild(text); |
| } |
| |
| function doTest() |
| { |
| write(internals.layerTreeAsText(document, window.internals.LAYER_TREE_INCLUDES_PAINTING_PHASES)); |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| } |
| |
| window.addEventListener('load', doTest, false); |
| |
| if (window.testRunner) |
| testRunner.waitUntilDone(); |
| </script> |
| </head> |
| <body> |
| <div class="container"> |
| <div class="composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| <div class="not-composited"></div> |
| </div> |
| <pre id="console"></pre> |
| </body> |
| </html> |
| |
