Chromium Code Reviews Chromium Code Reviews
Issue 233063004:
Suppress layer creation for descendants of GPU-rasterized layers (Closed)
Base URL: svn://svn.chromium.org/blink/trunk| OLD | NEW |
|---|---|
| (Empty) | |
| 1 <!DOCTYPE html> | |
| 2 <html> | |
| 3 <head> | |
| 4 <style> | |
| 5 #container { | |
| 6 will-change: top; | |
| 7 position: absolute; | |
| 8 z-index: 0; | |
| 9 left: 200px; | |
| 10 top: 100px; | |
| 11 width: 100px; | |
| 12 height: 100px; | |
| 13 background-color: blue; | |
| 14 } | |
| 15 | |
| 16 #willChangeOpacity { | |
| 17 position: absolute; | |
| 18 left: 50px; | |
| 19 top: 50px; | |
| 20 width: 75px; | |
| 21 height: 75px; | |
| 22 background-color: green; | |
| 23 will-change: opacity; | |
| 24 } | |
| 25 </style> | |
| 26 <script type="text/javascript"> | |
| 27 if (window.internals) { | |
| 28 window.internals.settings.setAcceleratedCompositingForGpuRasterizationHint Enabled(true); | |
| 29 // Force an update of the compositing triggers. | |
|
Ian Vollick
2014/04/14 17:02:45
This is hacky. If forceCompositingUpdate doesn't w
ajuma
2014/04/14 18:09:34
Switched this to forceCompositingUpdate. See also
| |
| 30 window.internals.layerTreeAsText(document); | |
| 31 } | |
| 32 | |
| 33 if (window.testRunner) { | |
| 34 testRunner.dumpAsText(); | |
| 35 testRunner.waitUntilDone(); | |
|
Ian Vollick
2014/04/14 17:02:45
No need for wait until done (or notify done), I do
ajuma
2014/04/14 18:09:34
Done.
| |
| 36 } | |
| 37 | |
| 38 function doTest() | |
| 39 { | |
| 40 if (window.internals) { | |
| 41 window.internals.forceCompositingUpdate(document); | |
| 42 } | |
| 43 // Adding "will-change: contents" to the container div should | |
| 44 // stop its child from compositing. | |
| 45 document.getElementById("container").style.willChange = "contents"; | |
| 46 if (window.testRunner) { | |
| 47 document.getElementById("layertree").innerText = window.internals.layerT reeAsText(document); | |
| 48 testRunner.notifyDone(); | |
| 49 } | |
| 50 } | |
| 51 | |
| 52 window.addEventListener('load', doTest, false); | |
| 53 </script> | |
| 54 </head> | |
| 55 | |
| 56 <body> | |
| 57 <div id="container"> | |
| 58 <div id="willChangeOpacity"></div> | |
| 59 </div> | |
| 60 | |
| 61 <pre id="layertree"></pre> | |
| 62 </body> | |
| 63 | |
| 64 </html> | |
| OLD | NEW |
