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Re: Some editorial and clarification comments on 23 March Draft

From: Ian Jacobs <ij@w3.org>
Date: Tue, 27 Mar 2001 14:16:54 -0500
Message-ID: <3AC0E726.93633975@w3.org>
To: Jon Gunderson <jongund@uiuc.edu>
CC: w3c-wai-ua@w3.org
Reference document:

Jon Gunderson wrote:
> 1. Placeholders discussed in checkpoints for Guideline 3 should be added to
> the list of enabled element defintion

> 2. It seems the current priority 3 checkpoint 2.8 can be satisfied by the
> Priority 2 checkpoint 2.7, since 2.8 points back to the features of 2.7 as
> a solution.  I don't think this was the indention of 2.8.

Checkpoint 2.7 says "generate repair text"
Checkpoint 2.8 says "don't generate the repair text of 2.7 unless
                     I tell you"

I don't know why this is specific to images. Suppose the user
provides an auditory track and no synchronized text equivalent,
but the user agent can determine that some other html page
is a transcript of the track. Then it might give the user access
to that transcript (this is a little bit of a stretch, but not much).

I don't think that 2.8 should be limited to images. I do think
that we should fix the wording of 2.8 to avoid "author intentionally".
So we should change 
   "when the author has intentionally provided empty conditional
   "when the user agent recognizes that the author has
   failed to provide conditional content that was 
   frequired by the ormat specification."

(In other words, reuse the language of 2.7).

 _ Ian

> a. 2.8 was originally only about images and I am not sure the general
> conditional content substitution works for this checkpoint with any known
> results.
> b. Proposed new checkpoint 2.8:
> <NEW>
> 2.8 Allow configuration so that when the author has intentionally provided
> empty conditional content (alt="") for an image element, the user agent
> does not render the image (i.e. CSS display property of the image is set to
> "none").
> [Priority 3]
> </NEW>

 - Ian

Ian Jacobs (jacobs@w3.org)   http://www.w3.org/People/Jacobs
Tel:                         +1 831 457-2842
Cell:                        +1 917 450-8783
Received on Tuesday, 27 March 2001 14:17:01 UTC

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