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Re: Canvas and Interactivity

From: Cameron McCormack <cam@mcc.id.au>
Date: Wed, 15 Jul 2009 18:01:12 +1000
To: Robert O'Callahan <robert@ocallahan.org>
Cc: Jeff Schiller <codedread@gmail.com>, anthony.grasso@cisra.canon.com.au, www-svg <www-svg@w3.org>
Message-ID: <20090715080111.GA9277@arc.mcc.id.au>
Cameron McCormack:
> > Yes, there’s a proposal to simplify these SVG DOM accessors in SVG 2.0:
> >
> >  http://www.w3.org/Graphics/SVG/WG/track/issues/2044
> >
> > We discussed whether it would be possible to drop the existing animVal/
> > baseVal interfaces for something new, but there’s likely too much
> > content that uses it now.  The above proposal would work on existing
> > SVGAnimatedLength etc. objects.
> >

Robert O'Callahan:
> The problem with that proposal is that you can do rect.x = 20 but you can't
> do rect2.x = rect.x + 5. Not being able to read the value you put in is
> quite disconcerting.

The proposal would allow that by specifying a valueOf function on the
SVGAnimatedLength prototype object or by specifying a value for the
[[DefaultValue]] internal property.

-- 
Cameron McCormack ≝ http://mcc.id.au/
Received on Wednesday, 15 July 2009 08:02:12 GMT

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