| <!DOCTYPE html> |
| |
| <!-- |
| This test checks that accelerated scrolling layers can be scrolled without |
| repainting their contents. See https://bugs.webkit.org/show_bug.cgi?id=96087. |
| --> |
| |
| <html> |
| <head> |
| <style type="text/css"> |
| #scroller { |
| overflow: scroll; |
| -webkit-overflow-scrolling: touch; |
| width: 200px; |
| height: 200px; |
| border: solid thin blue; |
| } |
| |
| #content { |
| height: 1000px; |
| margin-top: 25px; |
| } |
| </style> |
| <script src="../resources/text-based-repaint.js"></script> |
| <script type="text/javascript"> |
| if (window.internals) |
| internals.settings.setPreferCompositingToLCDTextEnabled(true); |
| |
| function repaintTest() { |
| // Scroll down. This should not cause any more repaints to the |
| // scrolling contents. |
| document.getElementById('scroller').scrollTop = 25; |
| } |
| |
| runRepaintAndPixelTest(); |
| </script> |
| </head> |
| <body> |
| <div id="scroller"> |
| <div id="content"></div> |
| </div> |
| </body> |
| </html> |
