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Re: How to control dynamic content?

From: thierry michel <tmichel@w3.org>
Date: Tue, 17 Oct 2000 17:43:14 +0200
Message-ID: <009601c03850$f647e5a0$228a608a@inria.fr>
To: <www-smil@w3.org>
Cc: "Max Malin" <max.malin@saraxa.com>

----- Original Message -----
From: "thierry michel" <tmichel@w3.org>
To: <www-smil@w3.org>
Cc: "Max Malin" <max.malin@saraxa.com>
Sent: Tuesday, October 17, 2000 2:05 PM
Subject: Re: How to control dynamic content?


>
> ----- Original Message -----
> From: "Max Malin" <max.malin@saraxa.com>
> To: <www-smil@w3.org>
> Sent: Tuesday, October 17, 2000 1:10 PM
> Subject: [Moderator Action] How to control dynamic content?
>
>
> > Hi,
> >
> > me and my colleague have been reading the latest smil draft
> > version very enthusiastic and are beginning to understand it's
> > full potential. Especially we have evaluated it in couple of
> > real-life usage scenarios to see more clearly, whether it
> > could be usable in our future projects. One thing, however,
> > doesn't come out from the document:
> >
> > How to control content loading dynamically with Timing Attributes
> > without scripting of any kind (without programming against DOM)?
> > And all of this during playback?
> >
> > All the examples in the draft are dealing only with static content.
> > By static content we mean, that the SMIL presentation is always loaded
as
> > a whole and then played. There's no "reloading" of anykind during
> playback.
> > It seems, that this kind of functionality is not "built-in" in SMIL?
> > Even though, SMIL is designed to be reusable in the module level
> > (you can create your own markups using these modules), this kind of
> > functionality must definately be in the SMIL itself.
> >
> > Here is a couple of examples where we could utilize this kind of
> behaviour:
> >
> > 1. "Real-time" view of stock exchange (textual or graphical view)
> >
> > Let's say I want to have a window open on my desktop, which shows the
> > values of the stocks I own. As we all know, "real-time" view for stock
> > value is essential. It should be obvious that I don't want to "refresh"
> > the view myself - it should executed automatically (updating itself
> > while I work).
> >
> > One solution could be that you add an element called <fetch> (to the
> Content
> > Control Module), which could be used for "timed loading" of SMIL
content.
> > Something like the following:
> >
> > <fetch dur="10s" repeatDur="indefinite">
> >   <text id="text1" src="stockvalues.txt"...>
> > </fetch>
> >
> > In here a text file "stockvalues.txt" is assumed to be created on the
> server
> > side. The fetch module reloads it's contents on every 10 seconds.
> >
> > 2. "Real-time" view of Vote Counts in presidental election
> >
> > This is much like the first example, but now I want to follow some
> > presidental election
> > process in "real-time".
> >
> > <fetch dur="60s" repeatDur="09:00pm">
> >   <img id="image1" src="progressbar_candidate1.jpg"...>
> >   <img id="image2" src="progressbar_candidate2.jpg"...>
> > </fetch>
> >
> > Again, in here we are assuming that the progressbar images are updated
> > regularly on
> > the server side. The fetch module reloads it's contents on every 60
> seconds
> > and
> > stops reloading after 9 pm.
> >
> > Is there some way to do this, that we are not able to see? Is there a
way
> to
> > do this without scripting? If not, we think that this kind of
> functionality
> > must definately be supported in the SMIL 2.0. If we want to minimize the
> > need
> > for scripting why not minimize it even further?
> >
> > Note, that the examples above are just to demonstrate the problem we
have
> > been
> > encountering. We are sure that you can come up with much more finer
> > solution.
> >
> >
> > Best regards
> >
> > Max Malin & Jani Niittukari
> > Saraxa Media Corp.
> >
>
Received on Tuesday, 17 October 2000 11:43:17 UTC

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