RE: windowOpenedEvent and windowClosedEvent have been overlooked

This looks fine, although I would really like to shorten the names a bit. At
this point, we do not have a commonly supported means of compressing SMIL,
and I do not think it adds to readability to say: 

<audio src="someURL" begin="viewport.viewportOpenedEvent" 
                     end="viewport.viewportClosedEvent" .../>
when 

<audio src="someURL" begin="viewport.opened" end="viewport.closed" .../>

would suffice. 

In particular, since we use the past tense, we should not conflict with any
DOM methods that would cause these actions.

I really do not like the gratuitous "event" suffices. We added these to
"begin" and "end" because we really did have to disambiguate the events from
the sync-base times. This was a special case, and not the general case.

Thanks - Patrick

> -----Original Message-----
> From: Erik Hodge [mailto:ehodge@real.com]
> Sent: Monday, September 25, 2000 12:06 PM
> To: www-smil@w3.org
> Cc: symm@w3.org
> Subject: windowOpenedEvent and windowClosedEvent have been overlooked
> 
> 
> Currently, there is no way for a SMIL 2.0 player to react to the end
> user closing a viewport window prior to the media playing within the
> window finishing its active duration.  The layout spec says that the
> closing of a viewport has no effect on the timing of the presentation.
> Therefore, if a viewport window is closed early, a means of reacting
> to this within the SMIL is needed.  A solution would be to add the
> "viewportClosedEvent" that gets raised by the window when it closes,
> regardless of why it closes.
> 
> Also, a "viewportOpenedEvent" should be added and would be useful to
> authors in other ways.
> 
> I propose that these events be added to the SMIL 2.0 Language Profile
> under the "Supported Event Symbols" section as follows:
> 
> Event               example
> ...
> windowOpenedEvent   end="vwprtx.viewportOpenedEvent+5s"
> windowClosedEvent   end="vwprty.viewportClosedEvent"
> 
> The following descriptions could be used in the "Event semantics"
> section:
> 
> viewportOpenedEvent:
>   Raised when a viewport window opens.  If a viewport closes and
>   then reopens when additional media becomes active in its region(s),
>   this event will be raised again, and will be raised every subsequent
>   time it reopens.
> 
> viewportClosedEvent:
>   Raised when a viewport closes for any reason.  If a viewport
>   reopens when additional media becomes active in its region(s),
>   this event will be raised again if and when the viewport closes
>   again, and will be raised every subsequent time it closes.
> 
> 
> 	- Erik Hodge
>          RealNetworks
>

Received on Tuesday, 26 September 2000 14:00:38 UTC