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Re: [CSSWG][css-overflow] First Public WD of CSS Overflow Module Level 3

From: Alan Gresley <alan@css-class.com>
Date: Sat, 27 Apr 2013 23:57:14 +1000
Message-ID: <517BD93A.4000702@css-class.com>
To: Brad Kemper <brad.kemper@gmail.com>
CC: Håkon Wium Lie <howcome@opera.com>, "L. David Baron" <dbaron@dbaron.org>, "www-style@w3.org" <www-style@w3.org>
On 26/04/2013 5:13 AM, Brad Kemper wrote:
> On Apr 25, 2013, at 11:37 AM, Håkon Wium Lie <howcome@opera.com>
> wrote:
>> Also sprach Brad Kemper:
>>> I mentioned it in another thread full of other points, but how
>>> do you feel about making 'overflow-x' and 'overflow-y' be based
>>> on writing mode, so that 'overflow-x' overflowed to the left for
>>> vertical-rl writing?
>> +1
>> This matches Opera's intent, if not implementation (as Presto
>> doesn't support vertical writing).
>>> If there are compatibility concerns, this behavior could be
>>> switched on with a separate property, such as
>>> 'overflow-behavior: logical | physical', or something like that.
>> I'd like to avoid such switches as they create more
>> interdependencies. It's better to have names/values where the
>> meaning is self-evident. For example, 'text-indent' depends on the
>> writing direction, while 'margin-left' doesn't.
> So, do you think compatibility with existing overflow-x and
> overflow-y using vertical writing mode in the wild is not a big
> concern? Or do you think there should be two new, better-named
> properties, such as 'overflow-inline' and 'overflow-block'?

Brad. Can you give some examples?

I have previously mentioned about a logical block progression [1 & 2] 
and where does visible overflow go.

Håkon. This is a major issue with non page documents (or paging effects) 
in CJK. There would be plenty of hacks to render ths test case [3] in a 
logical manner where you arrived at the beginning (01) of the document 
and not it's end (30).


1. http://lists.w3.org/Archives/Public/www-style/2012Jun/0540.html
2. http://lists.w3.org/Archives/Public/www-style/2010Oct/0645.html
3. http://css-class.com/test/css/bidi/kanji-test2.htm

Alan Gresley
Received on Saturday, 27 April 2013 13:57:42 UTC

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