1135417 - Anonymous ruby base box doesn't cause line breaking with its previous ruby base box

Status: NEW

(Core :: Layout: Ruby, defect)

Description

[Masayuki Nakano [:masayuki] (he/him)(JST, +0900)]

See this testcase: http://jsfiddle.net/d_toybox/vdqk93mr/1/

anonymous ruby base box doesn't cause line breaking between it and its previous ruby base box.

Comment 1

[Xidorn Quan [:xidorn] UTC+10]

This testcase is a little bit interesting. It seems the behavior meets our line-breaking impl for normal inline boxes.

According to the spec, the following code
<ruby>
  a
  <rb>b</rb>
</ruby>
have (roughly) the same effect as
<ruby><rb>
  a
  </rb><rb>b</rb></ruby>

The line breaking behavior should behave like
<span>
  a
  </span><span>b</span>
with "span { white-space: nowrap; }".
And in our current impl, there is no wrap opportunity between the two span either.

But the interesting thing is
<ruby>
  <rb>a</rb>
  <rb>b</rb>
</ruby>
should behave like
<span>a</span><span>
  </span><span>b</span>
but it doesn't. This may worth further investigation. I don't think it is important, though.