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Re: Missing inheritance

From: Jon Ferraiolo <jferraio@Adobe.COM>
Date: Thu, 02 Nov 2000 05:29:38 -0800
Message-Id: <>
To: Stephane Conversy <conversy@emn.fr>
Cc: www-svg@w3.org
We purposely do not offer anything but the XML DOM for the animation 
elements. The reason for this is that the animation elements have been 
defined in collaboration with the SYMM working group, the people who define 
the SMIL language. The SYMM working group has chosen to work on the SMIL2 
language first, and the SMIL2 DOM later. This decision was due to how much 
time it takes to define something like a SMIL2 DOM, plus the fact that a 
SMIL2 DOM would be a very complex undertaking. For example, take a look at 
the 'begin' attribute on the animation elements -- not an easy thing to 
express as an API. There is also the issue about interaction of the SMIL2 
DOM with the timing features in the language.

The SVG working group felt that it didn't have the charter to define the 
DOM for the animation elements, and we would face the same difficult 
technical issues. Therefore, we decided to do nothing more than define 
empty interfaces for the animation elements. So, the only way you can work 
with the animation elements is via the XML Core DOM (e.g., getAttribute(), 
setAttribute(). (Incidentally, we chose the same strategy for the font 
elements due to lack of time and various difficult technical issues.)

Jon Ferraiolo
SVG Editor
Adobe Systems Incorporated

At 09:51 AM 11/2/00 +0100, Stephane Conversy wrote:
> > Re: Missing inheritance
> >
> > Blaine Brodie wrote:
> > >
> > > In the SVG dtd, 'FeDiffuseLighting' and 'FeSpecularLighting' elements 
> have
> > > stylable attributes, but their corresponding interfaces in the SVG DOM do
> > > not inherit from the SVGStylable.
> >
> > Good catch, thanks. We will fix this.
> >
> > --
> > Chris
> >
>isn't it the same for the various anim* element, which
>for the most part have a %aniElementAttrs; in the dtd,
>which in turn has a %xlinkRefAttrs;
>But SVGAnimationElement does not inherit from
>another thing: the mpath element has no counterpart in the DOM idl...
>     stéphane
Received on Thursday, 2 November 2000 08:30:17 UTC

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