| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <style> | |
| #indicator { | |
| position: absolute; | |
| top: 0px; | |
| left: 0px; | |
| height: 100px; | |
| width: 100px; | |
| background-color: red; | |
| } | |
| #clipper { | |
| -webkit-transform:translateZ(0); | |
| position: absolute; | |
| top: 0px; | |
| left: 0px; | |
| height: 100px; | |
| width: 100px; | |
| background-color: green; | |
| clip: rect(25px, 75px, 75px, 25px); | |
| } | |
| </style> | |
| <script> | |
| if (window.testRunner) | |
| testRunner.dumpAsText(true); | |
| function doTest() { | |
| if (window.testRunner) | |
| testRunner.displayAndTrackRepaints(); | |
| // The change in clip style should be reflected immediately in the size | |
| // of the composited clipper layer. After changing the clip, it should | |
| // entirely cover the indicator. | |
| var clipper = document.getElementById("clipper"); | |
| clipper.style.clip = "rect(0px, 100px, 100px, 0px)"; | |
| } | |
| window.addEventListener("load", doTest, false); | |
| </script> | |
| </head> | |
| <body> | |
| <div id="indicator"></div> | |
| <div id="clipper"></div> | |
| </body> | |
| </html> |