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1 <!-- Based on compositing/overflow/scrolling-without-painting.html --> | 1 <!-- Based on compositing/overflow/scrolling-without-painting.html --> |
2 <!DOCTYPE html> | 2 <!DOCTYPE html> |
3 | 3 |
4 <!-- | 4 <!-- |
5 This test checks that accelerated scrolling layers can be scrolled without | 5 This test checks that accelerated scrolling layers can be scrolled without |
6 repainting their contents. See https://bugs.webkit.org/show_bug.cgi?id=96087. | 6 repainting their contents. See https://bugs.webkit.org/show_bug.cgi?id=96087. |
7 --> | 7 --> |
8 | 8 |
9 <html> | 9 <html> |
10 <head> | 10 <head> |
11 <style type="text/css"> | 11 <style type="text/css"> |
12 #scroller { | 12 #scroller { |
13 overflow: scroll; | 13 overflow: scroll; |
14 -webkit-overflow-scrolling: touch; | 14 -webkit-overflow-scrolling: touch; |
15 width: 200px; | 15 width: 200px; |
16 height: 200px; | 16 height: 200px; |
17 border: solid thin blue; | 17 border: solid thin blue; |
18 } | 18 } |
19 | 19 |
20 #content { | 20 #content { |
21 height: 1000px; | 21 height: 1000px; |
22 margin-top: 25px; | 22 margin-top: 25px; |
23 } | 23 } |
24 </style> | 24 </style> |
25 <script src="resources/paint-invalidation-test.js"></script> | 25 <script src="resources/paint-invalidation-test.js"></script> |
26 <script type="text/javascript"> | 26 <script type="text/javascript"> |
27 if (window.internals) | 27 if (window.internals) |
28 window.internals.settings.setPreferCompositingToLCDTextEnabled(true); | 28 window.internals.settings.setPreferCompositingToLCDTextEnabled(true); |
29 | 29 |
30 window.expectedPaintInvalidationObjects = [ | |
31 ]; | |
32 function paintInvalidationTest() { | 30 function paintInvalidationTest() { |
33 // Scroll down. This should not cause any more repaints to the | 31 // Scroll down. This should not cause any more repaints to the |
34 // scrolling contents. | 32 // scrolling contents. |
35 document.getElementById('scroller').scrollTop = 25; | 33 document.getElementById('scroller').scrollTop = 25; |
36 } | 34 } |
37 | 35 |
38 runPaintInvalidationTest(); | 36 runPaintInvalidationTest(); |
39 </script> | 37 </script> |
40 </head> | 38 </head> |
41 <body> | 39 <body> |
42 <div id="scroller"> | 40 <div id="scroller"> |
43 <div id="content"></div> | 41 <div id="content"></div> |
44 </div> | 42 </div> |
45 </body> | 43 </body> |
46 </html> | 44 </html> |
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