| OLD | NEW |
|---|
| (Empty) | |
| 1 <!DOCTYPE> |
| 2 <html> |
| 3 <head> |
| 4 <style> |
| 5 #background { |
| 6 width: 200px; |
| 7 height: 200px; |
| 8 display: block; |
| 9 background-color: green; |
| 10 } |
| 11 .overlay { |
| 12 width: 50px; |
| 13 height: 50px; |
| 14 background-color: rgba(255, 255, 255, 1); |
| 15 -webkit-transition: opacity 1s; |
| 16 } |
| 17 |
| 18 #popup { |
| 19 width: 20px; |
| 20 height: 20px; |
| 21 background-color: red; |
| 22 border-radius: 6px; |
| 23 -webkit-transition: -webkit-transform 1s; |
| 24 } |
| 25 |
| 26 .transparent { |
| 27 opacity: 0; |
| 28 } |
| 29 |
| 30 [hidden] { |
| 31 display: none; |
| 32 } |
| 33 |
| 34 .overlay.transparent .page { |
| 35 -webkit-transform: scale(1) translateY(0px); |
| 36 } |
| 37 |
| 38 </style> |
| 39 <script type="text/javascript" charset="utf-8"> |
| 40 function runTest() |
| 41 { |
| 42 var solid_color_overlay = document.getElementById("solid_color_overlay")
; |
| 43 solid_color_overlay.removeAttribute('hidden'); |
| 44 |
| 45 var popup = document.getElementById("popup"); |
| 46 popup.removeAttribute('hidden'); |
| 47 |
| 48 // NOTE: This is a hacky way to force the container to layout which |
| 49 // will allow us to trigger the webkit transition. |
| 50 // See crbug.com/324685 |
| 51 solid_color_overlay.scrollTop; |
| 52 solid_color_overlay.classList.remove('transparent'); |
| 53 |
| 54 // dump the pixel in the middle of the transition |
| 55 if (window.internals) { |
| 56 window.internals.forceCompositingUpdate(document); |
| 57 window.internals.pauseAnimations(0.5); |
| 58 } |
| 59 triggerPixelResults(); |
| 60 } |
| 61 |
| 62 function triggerPixelResults() |
| 63 { |
| 64 parent.postMessage("TriggerPixelResults", '*'); |
| 65 } |
| 66 |
| 67 window.addEventListener('load', runTest, false); |
| 68 </script> |
| 69 </head> |
| 70 <body> |
| 71 <div id="background"> |
| 72 <div id="solid_color_overlay" class="overlay transparent" hidden=true> |
| 73 <div id="popup" class="page" hidden=true></div> |
| 74 </div> |
| 75 </div> |
| 76 </body> |
| 77 </html> |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 101623002:
Drop "only composite opacity animations when already in compositing mode". (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master