| <!DOCTYPE html> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <style> |
| #frame { |
| position: absolute; |
| top: -1000px; |
| } |
| </style> |
| |
| <iframe id="frame" sandbox="allow-scripts" src="resources/raf-throttling-frame.html"></iframe> |
| |
| <script> |
| if (window.testRunner) |
| testRunner.dumpAsText(); |
| let throttlingTest = async_test("Test requestAnimationFrame() throttling in out-of-view cross origin frames"); |
| |
| addEventListener('load', () => { |
| // Check how many animation frames have been served to the frame after 1 |
| // second. |
| setTimeout(() => { |
| var frame = document.querySelector('#frame'); |
| frame.contentWindow.postMessage(null, '*'); |
| }, 1000); |
| }); |
| |
| addEventListener('message', (e) => { |
| let rafCount = e.data; |
| // TODO(skyostil): Chrome always runs one animation frame while the layout |
| // test harness does none. Find out where the difference is coming from. |
| assert_less_than_equal(rafCount, 1, "requestAnimationFrame() callback count") |
| throttlingTest.done(); |
| }); |
| </script> |
