Re: Progress event spec

[Jean-Claude Dufourd]

Charles McCathieNevile wrote: 1. Make the "total" attribute 0 if the length is unknown, and drop the boolean "lengthComputable". The rationale is that if you really have a zero-length load, it is unlikely to ever have time to fire a progress event, and will almost certainly only fire any in a really degenerate case. Having a large number was a bad idea, since one day you will have a large number of bytes, and having anegative number meant having a signed instead of unsigned integer. I think Maciej has a point. This feels like a hack. 2. Remove the preload and postload events. You know when it finished, because the load event or whatever is spitting out progress will have finished. You know when it started, because you got a progress event. The above text is meaningless: loadprogress being optional, you need a "load-is-beginning" and "load-is-complete" event that are mandatory. So what are you doing ? Removing the mandatory first and last event, or having them all called the same ? The use case for indeterminate length and you want to have the end event is: you get a live recording. And I would want to know if it is the end or just progress. So I really think that removing postload, or at least the clear indication of an end, is a mistake. 3. Add an uploadprogress It is possible to construct an XHR that is moving content up and down at the same time, so knowing when progress refers to one or the other is useful. 4. Rename loadprogress to progress It's shorter. Do any of these changes cause any great heartache or seem crazy? We are trying to get this spec out quickly because th JCP guys want it. I haven't updated the draft at http://dev.w3.org/cvsweb/2006/webapi/progress/ yet but I wil try to do that ASAP so we can request first public working draft. The rest is fine. The SVG working group is working on Media Access Events. Did you think of reading that spec and checking if there are interactions ? Would it be meaningful to merge the two ? Best regards JC -- 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 Streamezzo participates to 3GSM World Congress in Barcelona from 12-15 February 2007. Visit us Hall 7 - Stand 7C28. If you wish to meet us and discover our Rich Media solutions please don’t hesitate to contact us.