| OLD | NEW |
|---|
| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
| 2 <html> | 2 <html> |
| 3 <head> | 3 <head> |
| 4 <style> | 4 <style> |
| 5 #container { | 5 #container { |
| 6 will-change: top; | 6 will-change: top; |
| 7 position: absolute; | 7 position: absolute; |
| 8 left: 200px; | 8 left: 200px; |
| 9 top: 100px; | 9 top: 100px; |
| 10 width: 100px; | 10 width: 100px; |
| 11 height: 100px; | 11 height: 100px; |
| 12 background-color: blue; | 12 background-color: blue; |
| 13 } | 13 } |
| 14 | 14 |
| 15 .fixed { | 15 .fixed { |
| 16 position: fixed; | 16 position: fixed; |
| 17 left: 50px; | 17 left: 50px; |
| 18 top: 50px; | 18 top: 50px; |
| 19 width: 75px; | 19 width: 75px; |
| 20 height: 75px; | 20 height: 75px; |
| 21 background-color: green | 21 background-color: green |
| 22 } | 22 } |
| 23 </style> | 23 </style> |
| 24 <script type="text/javascript"> | 24 <script src="../../fast/repaint/resources/text-based-repaint.js"></script> |
| 25 if (window.testRunner) { | 25 <script> |
| 26 testRunner.waitUntilDone(); | 26 function repaintTest() |
| 27 } | |
| 28 | |
| 29 function doTest() | |
| 30 { | 27 { |
| 31 if (window.internals) { | |
| 32 window.internals.forceCompositingUpdate(document); | |
| 33 } | |
| 34 // Adding "will-change: -webkit-transform" to the container div should | 28 // Adding "will-change: -webkit-transform" to the container div should |
| 35 // make this div become the containing block for its fixed position | 29 // make this div become the containing block for its fixed position |
| 36 // descendant. | 30 // descendant. |
| 37 document.getElementById("container").style.willChange = "-webkit-transform
"; | 31 document.getElementById("container").style.willChange = "transform"; |
| 38 if (window.testRunner) { | |
| 39 testRunner.notifyDone(); | |
| 40 } | |
| 41 } | 32 } |
| 42 | 33 onload = runRepaintAndPixelTest; |
| 43 window.addEventListener('load', doTest, false); | |
| 44 </script> | 34 </script> |
| 45 </head> | 35 </head> |
| 46 | 36 |
| 47 <body> | 37 <body> |
| 48 <div id="container"> | 38 <div id="container"> |
| 49 <div class="fixed"></div> | 39 <div class="fixed"></div> |
| 50 </div> | 40 </div> |
| 51 </body> | 41 </body> |
| 52 | 42 |
| 53 </html> | 43 </html> |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1413823005:
Invalidate objects when containing block changed (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master