[Accessibility-ia2] HTML table summary mapping to IA2

Richard Schwerdtfeger schwer at us.ibm.com
Fri Sep 2 13:17:24 PDT 2011


ok

Rich Schwerdtfeger
CTO Accessibility Software Group



From:	Pete Brunet <pete at a11ysoft.com>
To:
Cc:	IAccessible2 mailing list
            <accessibility-ia2 at lists.linux-foundation.org>
Date:	09/02/2011 03:05 PM
Subject:	Re: [Accessibility-ia2] HTML table summary mapping to IA2
Sent by:	accessibility-ia2-bounces at lists.linuxfoundation.org



Hi Rich, I was thinking the AT would try the relation first and if it
didn't exist then try accDescription, but the way you described would work
too.  And yes both summary and caption would be deprecated.

On 9/2/2011 2:46 PM, Richard Schwerdtfeger wrote:


      That works for me. So if summary is null  or an empty string then an
      AT should look to the describedby relationship.

      So, what will you do with caption? Will you deprecate it?


      Rich Schwerdtfeger
      CTO Accessibility Software Group

      Inactive hide details for Pete Brunet ---09/02/2011
          02:29:00
      PM---Are there any objections to the following?
          Deprecate
      IATable2Pete Brunet ---09/02/2011 02:29:00 PM---Are there any
      objections to the following? Deprecate IATable2::summary and caption,
      adding the follo

      From: Pete Brunet <pete at a11ysoft.com>
      To: IAccessible2 mailing list
      <accessibility-ia2 at lists.linux-foundation.org>
      Date: 09/02/2011 02:29 PM
      Subject: Re: [Accessibility-ia2] HTML table summary mapping to IA2
      Sent by: accessibility-ia2-bounces at lists.linuxfoundation.org





      Are there any objections to the following?

      Deprecate IATable2::summary and caption, adding the following notes:

      summary:  If the summary is a simple string return it via MSAA's
      get_accDescription.  If the summary consists of a hierarchy of
      objects provide an IA2_RELATION_DESCRIBED_BY relation.
      caption:  Provide an IA2_RELATION_LABELED_BY relation.

      Pete
      --
      Pete Brunet

      a11ysoft - Accessibility Architecture and Development
      (512) 467-4706 (work), (512) 689-4155 (cell)
      Skype: pete.brunet
      IM: ptbrunet (AOL, Google), ptbrunet at live.com (MSN)
      http://www.a11ysoft.com/about/
      Ionosphere: WS4G

      On 8/30/2011 1:30 PM, Richard Schwerdtfeger wrote:

            Hi Alex,

            Summary is the equivalent of a text description that can be
            mapped to accDescription. The summary is not visible to sighted
            users. So, it behaves the same way as a hidden aria-descibedby.
            We should start being consistent in the way that we provide
            information.

            Captions are visible labels that have an object associated with
            them and a label relation should be used.

            We could apply a role of caption to the caption label if we had
            one. I see no need for additional methods in
            IAccessible2Table2.

            Rich


            Rich Schwerdtfeger
            CTO Accessibility Software Group

            Inactive hide details for Alexander Surkov ---08/30/2011
            01:22:56 PM---When I started this thread I assumed that
            summary and caAlexander Surkov ---08/30/2011 01:22:56 PM---When
            I started this thread I assumed that summary and caption are
            semantically different than name (

            From: Alexander Surkov <surkov.alexander at gmail.com>
            To: pete at a11ysoft.com
            Cc: IAccessible2 mailing list
            <accessibility-ia2 at lists.linux-foundation.org>
            Date: 08/30/2011 01:22 PM
            Subject: Re: [Accessibility-ia2] HTML table summary mapping to
            IA2
            Sent by: accessibility-ia2-bounces at lists.linuxfoundation.org


            When I started this thread I assumed that summary and caption
            are
            semantically different than name (label relation) and
            description
            (description relation) and AT wants to have an access to them.
            If this
            makes sense then we should go with VARIANT approach, otherwise
            summary
            and caption should be deprecated. Do we have any use cases from
            AT
            perspective?

            Thank you.
            Alex.


            On Tue, Aug 30, 2011 at 3:44 AM, Pete Brunet
            <pete at a11ysoft.com> wrote:
            > I've been discussing this with Rich: rather than creating
            IATable3 and
            > having summary return a VARIANT which could then return
            either a BSTR
            > (for HTML) or an object (for other non-browser
            implementations), a
            > solution with less impact would be to deprecate summary and
            add a
            > comment that describedBy should be used when the description
            is provided
            > by an object (or tree of objects) or accDescription
            otherwise.  That
            > seems acceptable for non-browser implementations as well.
            What do you
            > think?
            >
            > Pete
            >
            > On 8/23/2011 8:50 AM, Pete Brunet wrote:
            >> For the 1.3 release, let me know if anyone is opposed to
            creating
            >> IATable3 with summary and caption changed to return a
            VARIANT instead of
            >> an IUnknown.
            >>
            >> On 8/22/2011 9:48 AM, Brett Lewis wrote:
            >>> Hi,
            >>> What prompted this thread for me is my trying to obtain
            caption and
            >>> summary via the IAccessibleTable interface.
            >>> By convention using name and description is fine but
            doesn't really seem
            >>> to correctly implement IAccessibleTable and is only
            somewhat intuitive.
            >>> I like the idea of having the get_summary and get_Caption
            return a
            >>> variant with either the text or the IAccessible.
            >>> Brett
            >>>
            >>>
            >>> -----Original Message-----
            >>> From: Alexander Surkov [mailto:surkov.alexander at gmail.com]
            >>> Sent: Monday, August 08, 2011 8:58 PM
            >>> To: James Teh
            >>> Cc: IAccessible2 mailing list; Brett Lewis
            >>> Subject: Re: [Accessibility-ia2] HTML table summary mapping
            to IA2
            >>>
            >>> Hi, Jamie. It appears AT want to get summary and caption
            (not a name or
            >>> description since they can be different).
            >>>
            >>> Brett, do you have scenarios to share?
            >>>
            >>> Thank you.
            >>> Alex.
            >>>
            >>>
            >>> On Tue, Aug 9, 2011 at 12:42 PM, James Teh
            <jamie at nvaccess.org> wrote:
            >>>> Hi Alex,
            >>>>
            >>>> Why are accName/accDescription insufficient?
            >>>>
            >>>> Thanks,
            >>>> Jamie
            >>>>
            >>>> On 9/08/2011 1:36 PM, Alexander Surkov wrote:
            >>>>> Hi.
            >>>>>
            >>>>> IATable2 provides caption and summary properties that
            return
            >>>>> accessible objects. HTML table summary is provided by
            @summary
            >>>>> attribute so there's no accessible object that's created
            from DOM
            >>>>> element. This can be workarounded by artificial
            accessible object
            >>>>> creation that is attached or not attached to the tree but
            this
            >>>>> complicates implementation and I would try to avoid it.
            Can we extend
            >>>>> the IAccessibleTable2 by summaryText and captionText
            attributes or
            >>>>> introduce summary and caption object attributes on table
            accessible
            >>>>> if interface change is not desired for this?
            >>>>>
            >>>>> Thank you.
            >>>>> Alexander._______________________________________________
            Accessibility-ia2 mailing list
            Accessibility-ia2 at lists.linuxfoundation.org
            https://lists.linux-foundation.org/mailman/listinfo/accessibility-ia2

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