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author | wolfbeast <mcwerewolf@wolfbeast.com> | 2019-11-04 13:31:30 +0100 |
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committer | wolfbeast <mcwerewolf@wolfbeast.com> | 2019-11-04 13:31:30 +0100 |
commit | c5c44d12073791bb1150445ce48bc57fccbb544d (patch) | |
tree | 9d7704d17cb06f886b0943d1508c9ff08f4b9570 /layout/generic/StickyScrollContainer.cpp | |
parent | a63272b5303b7aef467e974c630f745146fb983a (diff) | |
parent | bbc2206a0fda053a6f5071b457bd209dab9ed268 (diff) | |
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Merge branch 'master' into certexception-work
Diffstat (limited to 'layout/generic/StickyScrollContainer.cpp')
-rw-r--r-- | layout/generic/StickyScrollContainer.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/layout/generic/StickyScrollContainer.cpp b/layout/generic/StickyScrollContainer.cpp index ca68992c3..c5ed44e92 100644 --- a/layout/generic/StickyScrollContainer.cpp +++ b/layout/generic/StickyScrollContainer.cpp @@ -45,7 +45,7 @@ StickyScrollContainer::GetStickyScrollContainerForFrame(nsIFrame* aFrame) // <html style="position: fixed"> return nullptr; } - auto frame = static_cast<nsIFrame*>(do_QueryFrame(scrollFrame)); + nsIFrame* frame = do_QueryFrame(scrollFrame); StickyScrollContainer* s = frame->GetProperty(StickyScrollContainerProperty()); if (!s) { @@ -176,6 +176,14 @@ StickyScrollContainer::ComputeStickyLimits(nsIFrame* aFrame, nsRect* aStick, nsRect rect = nsLayoutUtils::GetAllInFlowRectsUnion(aFrame, aFrame->GetParent()); + // Note: Table row groups aren't supposed to be containing blocks, but we treat + // them as such anyway. + // Not having this basically disables position:sticky on table cells, which + // would be really unfortunate, and doesn't match what other browsers do. + if (cbFrame != scrolledFrame && cbFrame->GetType() == nsGkAtoms::tableRowGroupFrame) { + cbFrame = cbFrame->GetContainingBlock(); + } + // Containing block limits for the position of aFrame relative to its parent. // The margin box of the sticky element stays within the content box of the // contaning-block element. |