On Wed, 20 Aug 2014, John Barton wrote:
> > >
> > > The reverse case, where a img depends on a script, is not a use
> > > case.
> >
> > Why not? What if the image has an onmouseover handler that calls an
> > API function defined in a module, for instance?
>
> Then the page depends on the onmouseover handler code and it has a
> dependency on the module. Images are leaf nodes in the dependency tree.
Can you show me the markup for how you would like this to work? I'm not
sure I follow what your vision is here.
> > > > > > Or indeed even when scripting is enabled, how would you use it
> > > > > > to mark one non-loaded script as dependent on another
> > > > > > non-loaded script such that when you later ask for the former,
> > > > > > the latter loads automatically?
> > > > >
> > > > > import './latter';
> > > > >
> > > > > It's a solved problem for scripts.
> > > >
> > > > The key part of my question was "non-loaded". The "import" bit is
> > > > in the script. The script isn't loaded yet, so we can't rely on
> > > > it.
> > >
> > > <script>
> > > System.import('./former').then((former) => {
> > > // do stuff with former, knowing './former' imported './latter'.
> > > });
> > > </script>
> >
> > This results in multiple RTTs.
>
> If you don't want multiple round trips, import from a "bundle".
That doesn't work; see the discussion in this e-mail:
https://mail.mozilla.org/pipermail/es-discuss/2014-August/038853.html
> > Also, this doesn't wait until former is needed before loading it.
>
> But the mechanisms for knowing "need" are not available to any one at
> this point.
Right. I'm trying to set up the groundwork to add such features to HTML.
> I think you are imagining a magical trigger that does not exist.
That more or less summarises my job, yeah. :-)
--
Ian Hickson U+1047E )\._.,--....,'``. fL
http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,.
Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
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