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Diffstat (limited to 'layout/reftests/bugs/632781-verybig.html')
| -rw-r--r-- | layout/reftests/bugs/632781-verybig.html | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/layout/reftests/bugs/632781-verybig.html b/layout/reftests/bugs/632781-verybig.html new file mode 100644 index 0000000000..5ba1db9a86 --- /dev/null +++ b/layout/reftests/bugs/632781-verybig.html @@ -0,0 +1,27 @@ +<!DOCTYPE html> +<html> + <body> + <!-- + This test makes sure that scrolling a huge canvas would correctly scroll + its contents. We don't accelerate extremely large canvases because of + GPU maximum texture size limits, so this test makes sure that the + non-accelerated code path for this operation works correctly. + + The padding in this test is added mostly to make sure that scrollLeft/Top + correctly skip the padding. + --> + <div id="container" style="width: 100px; height: 100px; padding: 10px; overflow: hidden"> + <canvas width="10000" height="120" id="c"></canvas> + </div> + <script> + var ctx = document.getElementById("c").getContext("2d"); + ctx.fillStyle = "red"; + ctx.fillRect(0, 0, 10000, 5000); + ctx.fillStyle = "green"; + ctx.fillRect(5000, 0, 10000, 5000); + var container = document.getElementById("container"); + container.scrollLeft = 5010; + container.scrollTop = 10; + </script> + </body> +</html> |