| <!-- |
| Calculating collapsed borders for big tables is expensive, so we cache them and recalculate when needed. |
| Here we: |
| 1. Remove DIV text, this requests layout for DIV, but only simplified layout for TABLE; |
| 2. Change cell border color, expect that cache is invalidated and paint produces expected image. |
| --> |
| <html> |
| <head> |
| <title></title> |
| <link rel="stylesheet" href="resources/cached.css"> |
| <script type="text/javascript"> |
| function test() { |
| document.body.offsetTop; |
| if (window.testRunner) |
| testRunner.displayAndTrackRepaints(); |
| // remove text, this requests layout for DIV, |
| // but only simplified layout for TABLE |
| document.getElementById("blockDiv").innerText = ""; |
| // change color, no layout for TABLE, only repaint |
| document.getElementById("foo").style.borderColor = "lime"; |
| } |
| </script> |
| </head> |
| <body onload="test()"> |
| <table style="border-collapse:collapse; border:2px solid blue; position: relative;"> |
| <tr> |
| <td style="border:4px solid pink" id="foo"/> |
| <td style="border:1px solid black"/> |
| <div id="blockDiv">A</div> |
| </tr> |
| </table> |
| </body> |
| </html> |
| |
