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ISSUE-2094 (traitAccess accessing rules): accessing rules for traitAccess [Last Call: SVG 1.2 Tiny ]

From: SVG Working Group Issue Tracker <sysbot+tracker@w3.org>
Date: Tue, 7 Oct 2008 13:46:40 +0000 (GMT)
To: public-svg-wg@w3.org
Message-Id: <20081007134640.E37F4BF4F@nelson.w3.org>


ISSUE-2094 (traitAccess accessing rules): accessing rules for traitAccess [Last Call: SVG 1.2 Tiny ]

http://www.w3.org/Graphics/SVG/WG/track/issues/2094

Raised by: Doug Schepers
On product: Last Call: SVG 1.2 Tiny 

Julien Reichel
<http://lists.w3.org/Archives/Public/www-svg/2008Oct/0017.html>:
[[
In "Accessing rules for animation related elements" in the additional
accessing rules for the trait access, it is specified that "[SMIL
animation elements] cannot be modified using the TraitAccess methods
once inserted into the tree". This means for instance that the "href"
cannot be modified. I suppose that the purpose of this rule is to
simplify the design of UA. However there are no rules that forbid to
modify the xml:id of an element already inserted in the tree ( or did I
miss it? ). 


Thus it is possible to modify the target of an animation by switching
the xml:id of two elements (which is equivalent to a change of the href
in the animation). So IMO this restriction  is insufficient to enable
simplification of the UA design.  Note that modifying the xml:id of
other even in the tree can also be used to modify the behavior of other
attribute (like a begin="id1.begin" for instance)


My question:


- Why have such as restriction for the trait access (as there are other
ways, not forbidden, to trigger the same effect) ?
]]
Received on Tuesday, 7 October 2008 13:47:14 GMT

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