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Issue #2765 - Part 3: Make scrollbar width checks use the originating non-NAC style context

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Francis Dominic Fajardo 2025-06-26 21:15:50 +08:00 • committed by roytam1
commit 3ba0b10bb4
2 changed files with 6 additions and 2 deletions
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4
layout/generic/nsGfxScrollFrame.cpp
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@ -1058,7 +1058,9 @@ nsHTMLScrollFrame::Reflow(nsPresContext* aPresContext,
// This is only needed for root element because scrollbars of non-
// root elements with "scrollbar-width: none" is already suppressed
// in ScrollFrameHelper::CreateAnonymousContent.
if (this->StyleUIReset()->mScrollbarWidth == StyleScrollbarWidth::None) {
nsStyleContext* scrollbarStyle = nsLayoutUtils::GetNonAnonymousStyleContext(this);
auto scrollbarWidth = scrollbarStyle->StyleUIReset()->mScrollbarWidth;
if (scrollbarWidth == StyleScrollbarWidth::None) {
state.mVScrollbar = ShowScrollbar::Never;
state.mHScrollbar = ShowScrollbar::Never;
}