| <!DOCTYPE html> |
| |
| <html> |
| <head> |
| <script src="../../resources/run-after-layout-and-paint.js"></script> |
| <style type="text/css" media="screen"> |
| iframe { |
| border: 10px solid black; |
| padding: 5px; |
| margin: 20px; |
| height: 150px; |
| width: 300px; |
| -webkit-box-shadow: 0 0 20px black; |
| will-change: transform; |
| } |
| |
| .overlay { |
| position: absolute; |
| width: 50px; |
| height: 50px; |
| top: 5px; |
| left: 5px; |
| background-color: rgba(0, 0, 0, 0.2); |
| } |
| .composited { |
| will-change: transform; |
| } |
| </style> |
| <script type="text/javascript" charset="utf-8"> |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| |
| function doTest() |
| { |
| runAfterLayoutAndPaint(function() { |
| document.getElementById('iframe').className = 'composited'; |
| |
| if (window.testRunner) { |
| document.getElementById('layers').innerText = internals.layerTreeAsText(document); |
| testRunner.notifyDone(); |
| } |
| }); |
| } |
| |
| window.addEventListener('load', doTest, false); |
| </script> |
| </head> |
| <body> |
| |
| <!-- Test with already-composited iframe, and iframe contents becoming composited. --> |
| <iframe id="iframe" src="resources/composited-subframe.html"></iframe> |
| |
| <div class="overlay"> |
| </div> |
| |
| <pre id="layers">Layer tree appears here in DRT.</pre> |
| </body> |
| </html> |
