RE: Re[2]: [cgmo-webcgm] Draft Proposals

["Dieter Weidenbrueck" <dieter@itedo.com>]

I agree with your comments regarding layers: no mouse events

-----Original Message-----
From: Benoit Bezaire [mailto:benoit@itedo.com]
Sent: Friday, November 19, 2004 5:51 PM
To: CGM Open WebCGM TC
Subject: Re[2]: [cgmo-webcgm] Draft Proposals


Hi Ulrich,

I'm rewording a few paragraphs of my initial proposal, I'll send that
later.  In this email, I want to focus on a question you brought up...

Wednesday, November 17, 2004, 4:53:49 AM, Ulrich wrote:

<snip>
UL> " Instead, if the mouse pointer was over a 'grgroup' when the event
UL>   occurred; its closest ancestor element of type 'layer', 'grobject',
UL>   'para' or 'subpara' will be designated as the target element."

UL> How does layer fit in here?  It is not mentioned in the paragraphs
above.
That's a good question (regardless of this 'grgroup' discussion)...
Should the WebCGM DOM allow users to click on 'layer's?  WebCGM 1.0
did not allow 'layer's to have hyperlinks and therefore could not be
clicked upon.  Worded differently, the question becomes; can a 'layer'
be the target of a mouse event?

I say NO since we don't allow event listeners to be added to layers,
only at the picture level.  Additionally, since 'layer's cannot have a
hyperlink, there's no reason why you would want a 'layer' as an
event target.

Comments?

Regardless of what we decide, I think I should add in a sentence or
two about 'layer's in the Event interface section.

Regards,

--
 Benoit   mailto:benoit@itedo.com