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Re: Shadow DOM: state of the distribution API

From: Hayato Ito <hayato@chromium.org>
Date: Mon, 18 May 2015 04:22:45 +0000
Message-ID: <CAFpjS_2=gv=7PV8R-vT-jvnZYoQvcHuS2a4t6yMihXjn7UvwMw@mail.gmail.com>
To: Olli Pettay <olli@pettay.fi>, Wilson Page <wilsonpage@me.com>
Cc: Dimitri Glazkov <dglazkov@google.com>, Ryosuke Niwa <rniwa@apple.com>, Elliott Sprehn <esprehn@chromium.org>, Jonas Sicking <jonas@sicking.cc>, Anne van Kesteren <annevk@annevk.nl>, WebApps WG <public-webapps@w3.org>
On Sat, May 16, 2015 at 12:41 AM Olli Pettay <olli@pettay.fi> wrote:

> On 05/15/2015 06:39 PM, Wilson Page wrote:
> > Wouldn't it likely need to be called just before layout?
> Probably yes, but it is not defined when that actually happens.
>
>
>
Yeah, the exact timing is not defined. That's intentional. The
responsibility of UA is just to make sure the distribution is updated
whenever UA has to return any result which depends on the distribution. UA
can choose any evaluation strategy as long as it's not observable from the
outside.

Looks the spec needs more good wording for this.
Any good ideas for wording?



>   All the issues Dimitri highlighted are symptoms of layout running before
> distribution.
> >
> > On Fri, May 15, 2015 at 3:46 PM, Olli Pettay <olli@pettay.fi <mailto:
> olli@pettay.fi>> wrote:
> >
> >     On 05/15/2015 05:37 PM, Wilson Page wrote:
> >
> >         Would it be possible to leave the calling of the shadowRoot's
> distribute() function to the engine? This way the engine can be in full
> control over
> >         *when* distribution happens.
> >
> >
> >
> >     We would need to define when the engine calls it, otherwise web
> pages start to rely on the behavior of whatever engine the developers of the
> >     particular page mostly use.
> >
> >
> >
> >     -Olli
> >
> >
> >
> >         On Wed, May 13, 2015 at 5:46 PM, Dimitri Glazkov <
> dglazkov@google.com <mailto:dglazkov@google.com> <mailto:
> dglazkov@google.com
> >         <mailto:dglazkov@google.com>>> wrote:
> >
> >              I did a quick experiment around distribution timing:
> >
> https://github.com/w3c/webcomponents/blob/gh-pages/proposals/Distribution-Timing-Experiment.md.
> Hope you find it helpful.
> >
> >              :DG<
> >
> >
> >
> >
>
>
Received on Monday, 18 May 2015 04:23:14 UTC

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