| <!DOCTYPE html> |
| <html> |
| <body> |
| <script src="../../resources/js-test-pre.js"></script> |
| <script> |
| description("Tests that requestAnimationFrame is throttled in subframes are inside scrolled overflow scroll"); |
| window.jsTestIsAsync = true; |
| |
| function scrollOverflow() |
| { |
| |
| debug("Scrolling overflow."); |
| var container = document.getElementById('container'); |
| container.scrollLeft = window.innerWidth + 10; |
| |
| debug("requestAnimationFrame should still not be throttled"); |
| shouldBeEqualToString("testFrame.contentWindow.internals.requestAnimationFrameThrottlingReasons()", "[Unthrottled]"); |
| |
| finishJSTest(); |
| } |
| |
| function runTest() |
| { |
| testFrame = document.getElementById("testFrame"); |
| debug("Frame is initially inside the viewport so requestAnimationFrame should not be throttled"); |
| shouldBeEqualToString("testFrame.contentWindow.internals.requestAnimationFrameThrottlingReasons()", "[Unthrottled]"); |
| scrollOverflow(); |
| } |
| </script> |
| <style> |
| #container { |
| position: absolute; |
| left: 0; |
| width: 300px; |
| height: 200px; |
| overflow-x: auto; |
| background: silver; |
| } |
| |
| #testFrame { |
| width: 2000px; |
| height: 100px; |
| border: 2px solid black; |
| will-change: transform; |
| } |
| |
| </style> |
| <div id="container"> |
| <iframe id="testFrame" src="resources/requestAnimationFrame-frame.html" onload="runTest()"></iframe> |
| </div> |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
