| <!-- Based on compositing/squashing/squashing-inside-preserve-3d-element.html --> |
| <!doctype html> |
| <div style="-webkit-transform-style: preserve-3d"> |
| <div style="width: 100px; height: 100px; background:lightgray; transform:translateZ(0)"></div> |
| <div id="target" style="position: absolute; top: 20px; left: 20px; height: 100px; width: 100px; background:lightblue"></div> |
| </div> |
| <script src="resources/paint-invalidation-test.js"></script> |
| <script> |
| // Test that squashing works properly when inside of a transform-style: preserve-3d element. In the bug that this layout test |
| // was added to fix, the coordinates of the squashing layer paint invalidation rects were not recorded correctly, because some of |
| // the code computed transformed ancestors incorrectly (it should *not* include the preserve-3d element). |
| |
| window.expectedPaintInvalidationObjects = [ |
| "LayoutBlockFlow (positioned) DIV id='target'", |
| ]; |
| function paintInvalidationTest() { |
| var target = document.getElementById('target'); |
| target.style.background = 'red'; |
| } |
| |
| runPaintInvalidationTest(); |
| </script> |
