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1 <!-- Based on compositing/repaint/should-not-clip-composited-overflow-scrolling-
layer.html --> | |
2 <!DOCTYPE HTML> | |
3 <script src="resources/paint-invalidation-test.js"></script> | |
4 <script> | |
5 if (window.internals) | |
6 internals.settings.setPreferCompositingToLCDTextEnabled(true); | |
7 function paintInvalidationTest() { | |
8 document.getElementById('content').style.backgroundColor = 'green'; | |
9 var container = document.getElementById('container'); | |
10 container.scrollLeft = 2000; | |
11 container.scrollTop = 2000; | |
12 } | |
13 window.onload = runPaintInvalidationTest; | |
14 </script> | |
15 <style> | |
16 #container { | |
17 width: 500px; | |
18 height: 500px; | |
19 overflow: scroll; | |
20 } | |
21 #content { | |
22 width: 5000px; | |
23 height: 5000px; | |
24 background-color: red; | |
25 } | |
26 </style> | |
27 <div id="container"> | |
28 <div id="content"> | |
29 Tests invalidation of scrolling layer. Passes if the repaint rect is not clipp
ed, | |
30 and there is no red when the scrolling container is scrolled.<br> | |
31 Note for manual testing: must run with --enable-prefer-compositing-to-lcd-text | |
32 on non-high-dpi machines to enable composited scrolling. | |
33 </div> | |
34 </div> | |
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