| <!-- Based on compositing/repaint/should-not-clip-composited-overflow-scrolling-layer.html --> |
| <!DOCTYPE HTML> |
| <script src="resources/paint-invalidation-test.js"></script> |
| <script> |
| if (window.internals) |
| internals.settings.setPreferCompositingToLCDTextEnabled(true); |
| window.expectedPaintInvalidationObjects = [ |
| "LayoutBlockFlow DIV id='content'", |
| "LayoutBlockFlow DIV id='content'", |
| "##ALL##", |
| "##ALL##", |
| ]; |
| function paintInvalidationTest() { |
| document.getElementById('content').style.backgroundColor = 'green'; |
| var container = document.getElementById('container'); |
| container.scrollLeft = 2000; |
| container.scrollTop = 2000; |
| } |
| window.onload = runPaintInvalidationTest; |
| </script> |
| <style> |
| #container { |
| width: 500px; |
| height: 500px; |
| overflow: scroll; |
| } |
| #content { |
| width: 5000px; |
| height: 5000px; |
| background-color: red; |
| } |
| </style> |
| <div id="container"> |
| <div id="content"> |
| Tests invalidation of scrolling layer. Passes if the repaint rect is not clipped, |
| and there is no red when the scrolling container is scrolled.<br> |
| Note for manual testing: must run with --enable-prefer-compositing-to-lcd-text |
| on non-high-dpi machines to enable composited scrolling. |
| </div> |
| </div> |
