f14187c168
Instead of using overflow:hidden on the body to hide the scrollbar, this patch sets scrollbar-width:none on the html element. In some cases overflow:hidden is set on non-root scrollers (i.e. div elements); in those cases it is replaced by overflow:scroll;scrollbar-width:none to get an equivalent effect. One test had a pre-existing visible scrollbar on a nested scrollframe, but which started failing with a small fuzz difference. I left the scrollbar as-is and added an annotation to the reftest.list file. Note that this only updates the tests that use reftest-async-scroll as those were the cases that were easily detectable, and causing problems with the apz.allow_zooming=true pref. Differential Revision: https://phabricator.services.mozilla.com/D82032
28 lines
1.3 KiB
HTML
28 lines
1.3 KiB
HTML
<!DOCTYPE HTML>
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<html reftest-async-scroll>
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<body>
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<div style="width:400px; height:200px; overflow:scroll;
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scrollbar-width: none;
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border:2px solid black; background: red;
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contain:paint;"
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reftest-displayport-x="0" reftest-displayport-y="0"
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reftest-displayport-w="800" reftest-displayport-h="2000"
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reftest-async-scroll-x="0" reftest-async-scroll-y="100">
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<!-- This element is what we're hoping will fill the scrollport
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when the reftest snapshot is taken: -->
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<div style="background: lime; margin-top: 100px; height: 600px"></div>
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<!-- This element is just to be sure the scrollframe's "contain:paint"
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styling is actually having an effect. "contain:paint" should make the
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scrollframe become a containing block for this fixed-pos element, and
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then this element will position itself off the bottom of the
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scrollframe and will be entirely clipped. If we fail to honor
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"contain:paint" for some reason, then this element will instead use
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the *viewport* as its containing block, and it'll show up in the
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reftest snapshot and cause the reftest to fail. -->
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<div style="position: fixed; top: 320px; width: 50px; height: 50px;
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background: purple;"></div>
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</div>
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</body>
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</html>
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