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Re: TextTrackCue changes

From: Glenn Adams <glenn@skynav.com>
Date: Thu, 26 Sep 2013 15:58:28 -0700
Message-ID: <CACQ=j+dtPCULb+7Phz=7Y=o8_kW6B1RF=oXTd_Av1fmD3TnYFg@mail.gmail.com>
To: "Jerry Smith (WINDOWS)" <jdsmith@microsoft.com>
Cc: Silvia Pfeiffer <silviapfeiffer1@gmail.com>, public-html <public-html@w3.org>
On Thu, Sep 26, 2013 at 3:40 PM, Jerry Smith (WINDOWS) <
jdsmith@microsoft.com> wrote:

> My wording was imprecise.  I was disagreeing with the commit on the change
> because it reduces capability on the textTrackCue object that is currently
> used by websites.  I interpreted Glenn's comments as understanding that,
> but perhaps I misread him.
> I noted Ian's comment about retaining the constructor, the text attribute
> and (apparently previously removed) getCueAsHTML as being bad design.  As
> things stand, the generic cue object is the only one defined that supports
> TTML for these operations.  I don't agree with removing them.

Since there is no defined use of TextTrackCue with TTML cues, either before
(HTML5 CR1) or now (HTML5.1 Nightly and WHATWG specs), then I don't
understand your objection. That is, for HTML5 CR1, there is:

(1) no defined semantics of TextTrackCue with TTML;
(2) no definition of what TextTrackCue.text might mean with TTML;
(3) no definition of what TextTrackCue.getCueAsHTML might mean with TTML;


(4) HTML5 CR1 specified that VTT semantics applied when creating a
TextTrack, e.g., see step 5 of addTextTrack under [1]:

"Associate the text track list of
the rules for updating the display of WebVTT text
its rules for updating the text track
. [WEBVTT]<http://www.w3.org/TR/2012/CR-html5-20121217/references.html#refsWEBVTT>

Given this, it is unclear what you are disagreeing with, since there never
has been a defined use of these APIs with TTML.

> Jerry
> -----Original Message-----
> From: Silvia Pfeiffer [mailto:silviapfeiffer1@gmail.com]
> Sent: Thursday, September 26, 2013 3:32 PM
> To: Jerry Smith (WINDOWS)
> Cc: public-html
> Subject: Re: TextTrackCue changes
> Hi Jerry,
> On Fri, Sep 27, 2013 at 5:57 AM, Jerry Smith (WINDOWS) <
> jdsmith@microsoft.com> wrote:
> > I see two comments opposed to restoring the text attribute and the
> constructor to the base texttrackcue object.  I am in favor of that, and
> thought others were as well.  How was this specific topic resolved and
> committed?  Was there a broader consensus for this change?
> Indeed. As a result of the lengthy discussions, they have now been removed
> from the base TextTrackCue interface and thus also removed the spec fork
> (Glenn's email points out all the right spec pointers.)
> So, what you're asking for has indeed been achieved.
> Regards,
> Silvia.
Received on Thursday, 26 September 2013 22:59:16 UTC

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