| OLD | NEW |
|---|
| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <script src="resources/text-based-repaint.js"></script> |
| 3 <script> |
| 4 function changePositionKeepingGeometry(id, newPosition) { |
| 5 var target = document.getElementById(id); |
| 6 var originalTop = target.offsetTop; |
| 7 var originalLeft = target.offsetLeft; |
| 8 target.style.position = newPosition; |
| 9 target.style.top = originalTop + 'px'; |
| 10 target.style.left = originalLeft + 'px'; |
| 11 } |
| 12 |
| 13 function repaintTest() |
| 14 { |
| 15 changePositionKeepingGeometry('target1', 'absolute'); |
| 16 changePositionKeepingGeometry('target2', 'absolute'); |
| 17 changePositionKeepingGeometry('target3', 'fixed'); |
| 18 } |
| 19 onload = runRepaintTest; |
| 20 </script> |
| 21 <style> |
| 22 body { |
| 23 margin: 0; |
| 24 } |
| 25 div { |
| 26 width: 100px; |
| 27 height: 100px; |
| 28 top: 20px; |
| 29 background-color: blue; |
| 30 } |
| 31 #target1 { |
| 32 left: 20px; |
| 33 position: relative; |
| 34 } |
| 35 #target2 { |
| 36 left: 220px; |
| 37 position: fixed; |
| 38 z-index: 0; |
| 39 } |
| 40 #target3 { |
| 41 left: 420px; |
| 42 position: absolute; |
| 43 z-index: 0; |
| 44 } |
| 45 </style> |
| 46 There should be no invalildations on change of position without actual change of
position and size. |
| 47 <div id="target1"></div> |
| 48 <div id="target2"></div> |
| 49 <div id="target3"></div> |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 536183002:
Don't always full invalidation on 'position' style change (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@FlexAlignRepaint