W3C home > Mailing lists > Public > public-webapi@w3.org > February 2007

Re: Progress event spec

From: Jean-Claude Dufourd <jean-claude.dufourd@streamezzo.com>
Date: Fri, 02 Feb 2007 11:09:56 +0100
Message-ID: <45C30DF4.5020206@streamezzo.com>
To: Bjoern Hoehrmann <derhoermi@gmx.net>
CC: Web API public <public-webapi@w3.org>
Bjoern Hoehrmann wrote:
> * Jean-Claude Dufourd wrote:
>> JCD: take a scene with a media element with an empty xlink:href. The 
>> load event on the media element arrives at the end of the parsing of the 
>> element, because of the empty (or absent) xlink:href.
> When the load event occurs in this case is subject to the specification
> of this media element. If this media element has embedding semantics, an
> empty xlink:href attribute would result in infinite recursion; generally
> such a media element cannot load successfully and I would consequently
> not expect the load event to occur but the error event to occur instead.
JCD: Sorry, you lost me there. An SVG/SMIL media element with an empty 
xlink:href just does not render: it is definitely not in error.
The load event will happen.

>> I suppose that the recording is stopped by a mean resident on the camera 
>> (button). From the point of view of the media element, there is no way 
>> of  knowing about the end of the media.
>> I would like to have:
>> - an event at the beginning of the recording, to start a "recording" 
>> animation
>> - I do not care about events during the recording, because the duration 
>> is unknown, so I have no way of slaving my animation to any "progress" 
>> indication representing completeness
>> - I want an event at the end of the recording, in order to terminate the 
>> "recording" animation.
> It seems that if the implementation knows about the end of the recording
> it also knows about the end of the media, so I am not really sure what
> you are trying to say.
JCD: again, you lost me: my POV is that of the content. Can I design the 
content so that it can react to the end of the recording, e.g. by 
stopping an animation ?
The machine knows, the UA software may know, but is there a way to let 
the content know ? Tha is my problem.
Best regards

*Jean-Claude Dufourd* - Chief Scientist, *Streamezzo*
21, av. Victor Hugo, 75016 Paris, France, Tel: +33 (0) 153632847
*http://www.streamezzo.com* - Fax: +33 (0) 142224601

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Received on Friday, 2 February 2007 10:12:43 UTC

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