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Re: Proposal for changes to manage Shadow DOM content distribution

From: Dimitri Glazkov <dglazkov@google.com>
Date: Wed, 22 Apr 2015 15:54:09 -0700
Message-ID: <CADh5Ky0BH0hojwqopCfkrzbT2ivubhavVG1vtnaVPpGjtPDwaQ@mail.gmail.com>
To: Ryosuke Niwa <rniwa@apple.com>
Cc: "Tab Atkins Jr." <jackalmage@gmail.com>, Domenic Denicola <d@domenic.me>, Brian Kardell <bkardell@gmail.com>, "Edward O&amp,#39 Connor" <eoconnor@apple.com>, Jan Miksovsky <jan@component.kitchen>, WebApps WG <public-webapps@w3.org>
FWIW, I can see the appeal of a slot-based approach in Ryosuke/Ted/Jan

It reduces the implementation complexity: all of the selector-checking
logic in
is replaced with (what effectively is) a map lookup.

While some loss of flexibility is a cost, I think it's worth considering
this trade-off, especially if it is a sticking point for implementers who
are looking to reduce the overall cost of Shadow DOM implementation.

In fact, if we reach cross-vendor agreement and decide to go with the
slot-based approach, we probably should avoid adding extra sugar around
element names and attribute values as slot indicators, and instead double
down on developing a good imperative API that overcomes the loss of

Received on Wednesday, 22 April 2015 22:54:36 UTC

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