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[css3-writing-modes] text-combine-mode should allow it being wider than 1em, and also other fallback behavior

From: Koji Ishii <kojiishi@gluesoft.co.jp>
Date: Wed, 25 Apr 2012 07:53:15 -0400
To: "www-style@w3.org" <www-style@w3.org>
Message-ID: <A592E245B36A8949BDB0A302B375FB4E0D3C3C79B7@MAILR001.mail.lan>
I was talking with Japanese publishers and heard they're concerned with the current definition of text-combine-mode[1] in the following two points:

1. Currently, "auto" value states that "must attempt to fit the contents within 1em" unless "text-combine-mode: no-compress" is specified. But two digits using Kozuka-Gothic for instance has 1.102em width, so it usually looks better if the UA doesn't compress. WebKit behaves this way today and he likes it, but the current definition of "auto" prohibits this behavior today. Is it possible for the "auto" value to allow UA to decide not to compress?

2. Old ED/WD defined UA to fallback to "text-combine-horizontal: none" but the current WD does not have an option for such behavior. The publisher doesn't want compress, nor overwrapping with neighbor lines, so the fallback to none would be the only option. There are such examples in the real world. Is it possible to allow such behavior either by adding a new value, or by allowing such behavior in "auto"?

I think adding a value to fallback to none, and allowing use of the value in "auto" along with allowing UA to define some tolerance gives what he wants.

Does this sound reasonable?

[1] http://dev.w3.org/csswg/css3-writing-modes/#text-combine-mode

Regards,
Koji
Received on Wednesday, 25 April 2012 11:54:14 GMT

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