diff options
Diffstat (limited to 'layout/generic/StickyScrollContainer.cpp')
| -rw-r--r-- | layout/generic/StickyScrollContainer.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/layout/generic/StickyScrollContainer.cpp b/layout/generic/StickyScrollContainer.cpp index ca68992c3..ff8ebcfef 100644 --- a/layout/generic/StickyScrollContainer.cpp +++ b/layout/generic/StickyScrollContainer.cpp @@ -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. |