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| (Empty) |
| 1 <!-- Based on compositing/repaint/fixed-pos-inside-composited-intermediate-layer
.html --> | |
| 2 <!DOCTYPE html> | |
| 3 <html> | |
| 4 | |
| 5 <head> | |
| 6 <script src="resources/paint-invalidation-test.js"></script> | |
| 7 <style> | |
| 8 | |
| 9 .compositedBehind { | |
| 10 width: 500px; | |
| 11 height: 500px; | |
| 12 transform: translatez(0); | |
| 13 background-color: cyan; | |
| 14 } | |
| 15 | |
| 16 .containerOverlapsComposited { | |
| 17 position: absolute; | |
| 18 z-index: 2; /* Creates a stacking context so that the fixed-pos layer is conta
ined instead of a sibling */ | |
| 19 top: 20px; | |
| 20 left: 20px; | |
| 21 width: 100px; | |
| 22 height: 30000px; | |
| 23 background-color: green; | |
| 24 } | |
| 25 | |
| 26 .fixed { | |
| 27 position: fixed; | |
| 28 top: 45px; | |
| 29 left: 45px; | |
| 30 background-color: lime; | |
| 31 width: 50px; | |
| 32 height: 50px; | |
| 33 } | |
| 34 | |
| 35 </style> | |
| 36 | |
| 37 <script> | |
| 38 if (window.internals) { | |
| 39 /* Note carefully, compositing for fixed position is _disabled_ here
*/ | |
| 40 internals.settings.setPreferCompositingToLCDTextEnabled(false); | |
| 41 } | |
| 42 | |
| 43 function paintInvalidationTest() { | |
| 44 window.scrollTo(0, 100); | |
| 45 } | |
| 46 </script> | |
| 47 | |
| 48 </head> | |
| 49 | |
| 50 | |
| 51 | |
| 52 <body onload="runPaintInvalidationTest()"> | |
| 53 <!-- | |
| 54 Among other duplicate bugs: https://code.google.com/p/chromium/issues/det
ail?id=128375 | |
| 55 A non-composited fixed-position element can get grouped into a composited
container. | |
| 56 In this case, repaint invalidations were incorrectly going to the LayoutV
iew instead | |
| 57 of the composited container. The incorrect result was that the fixed-pos
ition element | |
| 58 never repainted, and it appeared to scroll along with the composited cont
ainer. | |
| 59 --> | |
| 60 <div class="compositedBehind"> </div> | |
| 61 | |
| 62 <div class="containerOverlapsComposited"> | |
| 63 <div class="fixed"></div> | |
| 64 </div> | |
| 65 </body> | |
| 66 | |
| 67 </html> | |
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Chromium Code Reviews
Issue 2010243002:
Remove paint/invalidation/spv2 (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master