| <!DOCTYPE html> |
| |
| <html> |
| <head> |
| <style> |
| .container { |
| height: 240px; |
| width: 120px; |
| overflow: hidden; |
| position: relative; |
| z-index: 0; /* create stacking context */ |
| border: 1px solid black; |
| } |
| |
| .box { |
| position: relative; |
| width: 100px; |
| height: 100px; |
| margin: 10px; |
| background-color: blue; |
| } |
| |
| .animating { |
| animation: spin 2s infinite linear; |
| } |
| |
| @keyframes spin { |
| from { transform: rotate(90deg); } |
| to { transform: rotate(360deg); } |
| } |
| </style> |
| <script> |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| |
| function runTest() |
| { |
| var box = document.getElementById('to-animate'); |
| box.addEventListener('animationstart', animationStarted, false); |
| box.className = 'animating box'; |
| } |
| |
| function animationStarted() |
| { |
| if (window.testRunner) { |
| var layerText = internals.layerTreeAsText(document); |
| // The animation can progress before the start event is handled, so remove the |
| // effects as they can vary. |
| layerText = layerText.replace(/\[.*,.*,.*,.*\]/g, '[...]'); |
| document.getElementById('layers').innerText = layerText; |
| testRunner.notifyDone(); |
| } |
| } |
| window.addEventListener('load', runTest, false); |
| </script> |
| </head> |
| <body> |
| <div class="container"> |
| <div id="to-animate" class="box"></div> |
| <!-- This div will get a layer --> |
| <div class="box"></div> |
| </div> |
| <!-- This div should not get a layer --> |
| <div class="box"></div> |
| <pre id="layers">Layer tree goes here in DRT</pre> |
| </body> |
| </html> |
