Re: [cgmo-webcgm] CGM_Metafile test

[Lofton Henderson <lofton@rockynet.com>]

At 10:20 AM 11/24/2005 -0500, Benoit Bezaire wrote:
>Hi,
>
>   The current WebCGM 2.0 specification says the following about
>   events:
>   - If there are no graphics objects whose interactive region is under
>   the mouse (i.e., there is no target object), the event is not
>   dispatched.
>
>   This does imply that clicking on some graphical primitives that are
>   not part of an Object (or clicking on the background) does _not_
>   generate an event. This was raised by Lofton (if I remember
>   correctly) and no body objected.

Yes.  No target object => no event.  Discussed and resolved issue.

Note that the CS text still has the unclear wording between the first 
3-bullet list and the second 3-bullet list.  The 3rd bullet of the first 
list seems contradictory to the execution of bullets 2 & 3 of the second 
list.  (Everyone seems to understand what it means, but no one ever 
volunteered for requested rewrite and it slipped through the cracks.)


>   The problem is that the CGM_Metafile test does not contain any
>   objects... and we can't test the addEventListener function because
>   of it.
>
>   If the specification is correct, then the test is incorrect and
>   needs to be updated.

I think the specification is correct.  Does anyone disagree?

(I think this matches SVG 1.0, altho' 1.2 apparently has changed it so that 
the <svg> element (sorta like the picture) can capture the event.)

-Lofton.