W3C home > Mailing lists > Public > www-svg@w3.org > August 2002

Re: proposal for this link/tspan discussion

From: Dean Jackson <dean@w3.org>
Date: Fri, 23 Aug 2002 00:44:58 +1000
To: Jon Ferraiolo <jon@ferraiolo.com>
Cc: "'John Hayman'" <JHayman@rim.net>, www-svg@w3.org
Message-ID: <20020822144458.GB6119@grorg.org>

On Tue, 20 Aug 2002, Jon Ferraiolo wrote:

> 
> John,
> It is true that static viewers are not required to support hyperlinking.
> The reason for this is that we were thinking of printers as one class of
> static viewers.

Hmmm... I don't think this is right. This would mean that a printer
is required to ignore all content in an <a> element.
I think a printer should be required to support <a>, to the
extent that it renders the children and never follows the link.

> However, it does seem like the SVG spec should formally mention a
> particular type of viewer being "static plus hyperlinking". This is
> pretty much what Batik 1.0 shipped (correct me if wrong) and matches
> with the sort of functionality people think about with Acrobat Reader
> (although recent versions of Acrobat support JavaScript onto its own
> [non-compliant with DOM] APIs).
> 
> I'll forward this idea to the SVG working group.
> 
> Jon Ferraiolo
> SVG 1.0 Editor
> 
> > -----Original Message-----
> > From: www-svg-request@w3.org [mailto:www-svg-request@w3.org] On Behalf
> Of
> > John Hayman
> > Sent: Tuesday, August 20, 2002 9:27 AM
> > To: 'www-svg@w3.org'
> > Subject: RE: proposal for this link/tspan discussion
> > 
> > 
> > "Jim Ley" <jim@jibbering.com> wrote:
> > > "John Hayman" <JHayman@rim.net> wrote:
> > > > on devices that don't have pointing devices it is
> > > > difficult to indicate that there is a "clickable" link.
> > 
> > > Er, why is that? I don't understand that at all, there's lots of
> ways of
> > > showing that something is a link that don't rely on a mouse,
> > 
> > Sure, like the cursor or bounding box or masking or what have you.
> All
> > are
> > pretty reasonable actions -- although I still maintain content
> developers
> > that are picky about their content will want the control themselves.
> > 
> > > I don't like the idea that requiring dynamic viewers is useful in
> SVG.
> > 
> > Ack!  I'd never thought of that!!  To me, I always think of
> hyperlinking
> > to
> > be dynamic content since it requires user interaction. Decided to
> recheck
> > the spec, and it looks like hyperlinking is dynamic content.
> >   http://www.w3.org/TR/SVG11/feature#SVG-static
> > does not include hyperlinks.
> >   http://www.w3.org/TR/SVG11/feature#SVG-dynamic
> > does include hyperlinks.
> > 
> > So it has never been the case that static viewers support
> hyperlinking.
> > It
> > has always been the case that dynamic viewers support hyperlinking.
> > Unless
> > I'm missing something fundamental?
> > 
> > Given that all visual elements are capable of generating mouseover,
> > mouseout
> > and activate events, it seems to me to be less of a change to handle
> > hyperlinking that way rather than adding "xlink:href" to every
> graphical
> > element.
> > 
> 
Received on Thursday, 22 August 2002 10:47:18 GMT

This archive was generated by hypermail 2.3.1 : Friday, 8 March 2013 15:54:23 GMT