| <html> |
| <head> |
| <script src="../../resources/js-test-pre.js"></script> |
| <script> |
| var counter = 0 |
| var square |
| var debugFudge = 200; |
| |
| function runTest(timestamp) |
| { |
| square = document.getElementById('square'); |
| |
| if (counter == 0 && window.internals) |
| shouldBe("window.internals.isPaintingFrequently(square)", "false"); |
| |
| var oldLeft = square.offsetLeft; |
| var oldTop = square.offsetTop; |
| square.style.left = (oldLeft + 1) + 'px'; |
| square.style.top = (oldTop + 1) + 'px'; |
| |
| counter++; |
| if (window.testRunner) { |
| // For debug builds that can't animate fast we just do a large number of increments. |
| for (var i = 0; i < debugFudge; ++i) |
| window.internals.incrementFrequentPaintCounter(square); |
| } |
| |
| if (counter < 60) |
| requestAnimationFrame(runTest); |
| else if (window.internals) { |
| shouldBe("window.internals.isPaintingFrequently(square)", "true"); |
| finishJSTest(); |
| } |
| } |
| |
| </script> |
| <body> |
| <div style="position:absolute; left:0;top:0"> |
| |
| <div style="position:absolute; left:0;top:0;width:2px; height:2px; background-color:green" id="square"></div> |
| </div> |
| |
| <script> |
| description("This tests that we kick into high frequency painting mode properly when animating something quickly."); |
| window.jsTestIsAsync = true; |
| window.requestAnimationFrame(runTest); |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| |
