W3C home > Mailing lists > Public > www-style@w3.org > April 2015

Re: :host pseudo-class

From: Anne van Kesteren <annevk@annevk.nl>
Date: Mon, 27 Apr 2015 05:49:35 +0200
Message-ID: <CADnb78g7hu0w_GHrT+gz8PkFvAByEp_gBrOTpxCDVtppCtZZ=A@mail.gmail.com>
To: "L. David Baron" <dbaron@dbaron.org>
Cc: "www-style@w3.org" <www-style@w3.org>, WebApps WG <public-webapps@w3.org>
On Mon, Apr 27, 2015 at 5:37 AM, L. David Baron <dbaron@dbaron.org> wrote:
> We haven't really used (in the sense of shipping across browsers)
> pseudo-elements before for things that are both tree-like (i.e., not
> ::first-letter, ::first-line, or ::selection) and not leaves of the
> tree.  (Gecko doesn't implement any pseudo-elements that can have
> other selectors to their right.  I'm not sure if other engines
> have.)
>
> I'd be a little worried about ease of implementation, and doing so
> without disabling a bunch of selector-related optimizations that
> we'd rather have.
>
> At some point we probably do want to have this sort of
> pseudo-element, but it's certainly adding an additional dependency
> on to this spec.

Are you saying :host accepts selectors to its right and they would
potentially result in a match? Even if that were the case it's still
unclear to me how a pseudo-class is justified. Or are you saying the
concept of a host element selector is problematic in general?


-- 
https://annevankesteren.nl/
Received on Monday, 27 April 2015 03:49:58 UTC

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