| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>Performance tester for non-overlaping 2D layers</title> |
| <style> |
| .container { |
| position: relative; |
| width: 20px; |
| height: 20px; |
| border: 1px solid #AAA; |
| margin: 0 auto 5px; |
| } |
| |
| .box { |
| width: 100%; |
| height: 100%; |
| position: absolute; |
| background: red; |
| } |
| |
| .composited { |
| -webkit-transform: translateZ(1px); |
| } |
| </style> |
| <script src="../resources/runner.js"></script> |
| </head> |
| <body> |
| <pre id="log"></pre> |
| <script> |
| function createTestFunction(count) { |
| return function() { |
| var container = document.createElement("div"); |
| for(i = 0; i < count; ++i) { |
| var outer = document.createElement('div'); |
| outer.className = 'container'; |
| var inner = document.createElement('div'); |
| inner.className = 'box'; |
| if (i == 0) { |
| // Use at least one 3D layer to trigger the overlap map checking. |
| inner.className += " composited"; |
| } |
| outer.appendChild(inner); |
| container.appendChild(outer); |
| } |
| document.body.appendChild(container); |
| // Force a layout update. |
| document.body.clientHeight; |
| container.remove(); |
| } |
| } |
| PerfTestRunner.measureTime({run: createTestFunction(5000)}); |
| </script> |
| </body> |
| </html> |
