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Re: [css-counter-styles-3] Writing mode based glyphs for disclosure-open/close

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Tue, 26 Mar 2013 11:43:50 -0700
Message-ID: <CAAWBYDCF6LsK4aHwGyyoPdWjycFu4hjhqi+h5zX_EsyduLWsHA@mail.gmail.com>
To: Simon Sapin <simon.sapin@exyr.org>
Cc: www-style list <www-style@w3.org>
On Tue, Mar 26, 2013 at 11:35 AM, Simon Sapin <simon.sapin@exyr.org> wrote:
> From §5.3:
>>
>> For the ‘disclosure-open’ and ‘disclosure-closed’ counter styles, the
>> marker must be an image or character suitable for indicating the open
>> and closed states of a disclosure widget, such as HTML's <details>
>> element. If the image is directional, it must respond to the writing
>> mode of the element [CSS3-WRITING-MODES], similar to the
>> bidi-sensitive images feature of the Images 4 module. For example,
>> the ‘disclosure-closed’ style might use the characters U+25B8 BLACK
>> RIGHT-POINTING SMALL TRIANGLE (▸) and U+25C2 BLACK LEFT-POINTING
>> SMALL TRIANGLE (◂), while the ‘disclosure-open’ style might use the
>> character U+25BE BLACK DOWN-POINTING SMALL TRIANGLE (▾).
>
> So with Images 4, it is possible to write a @counter-style rule with image
> symbols that does the right thing based on direction/writing-mode.
>
> Is it possible to do so with characters like U+25B8 ▸ and U+25C2 ◂ instead
> of images? (Using text in a SVG image doesn’t count.)

Aw, you're no fun.

> It’s a bit unfortunate to suggest units there characters if it’s not
> possible to meet the bidi-sensitive requirement that way.

True, but it let me illustrate the concept very easily without
generating an image.

(Actually, I think it would be great to have the ability to generate a
text image.  Maybe something for Images 4.)

~TJ
Received on Tuesday, 26 March 2013 18:44:37 GMT

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