[whatwg] Google Feedback on the HTML5 media a11y specifications

Silvia Pfeiffer silviapfeiffer1 at gmail.com
Tue Feb 15 16:36:16 PST 2011

Can you provide some good examples where mid-cue comments make sense?
I'm just wondering if it is really an 80% use case.

I suppose, you can always do <c.comment> and then style it as
"display:none", but this would only work in a browser unless offline
caption applications start supporting style sheets or <c.comment>
becomes common use.


On Wed, Feb 16, 2011 at 11:30 AM, Glenn Maynard <glenn at zewt.org> wrote:
> On Tue, Feb 15, 2011 at 7:01 PM, Silvia Pfeiffer
> <silviapfeiffer1 at gmail.com> wrote:
>> I would prefer if we could stick with a line based approach to this
>> issue and something that can be resolved without having to look at a
>> style sheet. If we do it this way, it doesn't become a pre-processor
>> type comment any more and leaks everywhere, which can be a real
>> nuisance, in particular for players that won't interpret the classes
>> and only strip the <c> tags.
> I'm referring to a specific, real-world use case: being able to put
> comments in the middle of a cue, typically editing notes.  This is one
> of the reasons why I don't like the idea of line-based comments.  I
> suggested the above as another possible way to handle that use case,
> not as a generic way to write comments, since it could only be used
> within cue text.
> The ability to display these notes inline while viewing the captions
> is very useful--it's something I've specifically wanted in the past
> with other caption formats.  In fact, this would allow different
> editors to mark their comments, in order to, for example, display
> comments by different editors in different colors.  <c.glenn>...</c>
> It's annoying that players not supporting CSS would display these by
> default.  It's not hard, in principle, to deal with it: add a node
> type identical to <c>, but with a default of "display: none" (and
> maybe an extra implicit class name, for CSS matching), eg.
> <x.glenn>...</x>.  I doubt it's worth the spec noise, though;
> stripping the comments for distribution is a simple workaround, if not
> exactly ideal.
> --
> Glenn Maynard

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