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issue #1547 - Correct z-ordering for some table parts and add reftests

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win7-7 2020-05-13 19:57:18 +03:00 • committed by Roy Tam
commit edaea616b3
5 changed files with 164 additions and 2 deletions
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7
layout/tables/nsTableWrapperFrame.cpp
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@ -187,8 +187,11 @@ nsTableWrapperFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
BuildDisplayListForChild(aBuilder, mCaptionFrames.FirstChild(), captionSet);
// Now we have to sort everything by content order, since the caption
// may be somewhere inside the table
set.BlockBorderBackgrounds()->SortByContentOrder(GetContent());
// may be somewhere inside the table.
// We don't sort BlockBorderBackgrounds and BorderBackgrounds because the
// display items in those lists should stay out of content order in order to
// follow the rules in https://www.w3.org/TR/CSS21/zindex.html#painting-order
// and paint the caption background after all of the rest.
set.Floats()->SortByContentOrder(GetContent());
set.Content()->SortByContentOrder(GetContent());
set.PositionedDescendants()->SortByContentOrder(GetContent());