[css-text] Fallback alignment for unexpandable text

The CSSWG agreed to remove some special-cased behavior for the last line
for 'text-justify: distribute' now that we have a 'text-align: justify-all'
syntax. We have another special behavior, though, which is its behavior
when the text is unexpandable: it is centered.

In all cases justification falls back to whatever was specified for
'text-align-last'. However, if that value is also 'justify', then we need
to come up with something else. Currently that is center-alignment for
'distribute' and start-alignment for everything else.

Possibilities for fallback alignment:
   A. Justification always falls back to center.
   B. Justification always falls back to start-alignment.
   C. Justification fallback depends on 'text-justify' as currently.

I don't think B is a good idea because it's in fact quite common in
CJK to justify the last (often only) line of text and want it to fall
back to centering. I also prefer to fully decouple 'text-justify'
from fallback alignment, so my preference is A.

Thoughts from others?

Note: We can extend text-align to take an explicit fallback alignment
in the future in any case. This would just be the default.


Received on Thursday, 23 October 2014 05:33:14 UTC