[webkit-dev] Shadow DOM API (first iteration) ready for landing

Sam Weinig weinig at apple.com
Wed Jun 29 19:50:35 PDT 2011

Hi Dimitri,

First of all, nice work on getting to this point!

It is not clear to me why we wouldn't stick with XBL2 for now, at least until there is more community consensus on going another way, and a spec and editor are available to take the API forward.  I think it would help if you could explain what considerations you took into account when making this decision, and further, why this subset is a good starting place. What are the use cases of this subset?

- Sam

On Jun 28, 2011, at 7:42 PM, Dimitri Glazkov wrote:

> Dear WebKit,
> After nearly a year of building up the shadow DOM plumbing and
> converting WebKit to use it, we are finally at the point where we can
> expose this plumbing as public-facing API. The approach we take here
> is a very cautious one: we want to expose the minimum subset of the
> larger Web Component Model (some of you might remember is it as XBL2).
> The goal is to minimize the impact, but have something useful enough
> for Web developers to help us gather feedback.
> After careful consideration, we've come up with this subset for our
> first iteration:
> http://dglazkov.github.com/component-model/dom.html
> Since this is an experimental API, here are the actual API names we want to use:
> Element.webkitShadow
> Element.webkitPseudo
> document.webkitCreateShadow()
> window.WebKitShadowRootConstructor
> window.WebKitTreeScopeConstructor
> We will also provide the ENABLE(COMPONENT_MODEL) flag to control
> availability of this API and its iterations, even though all of the
> C++ code will always compile, since it's used throughout WebKit.
> NOTE: This iteration of the API is not intended to ship in a release
> version of a browser (think nightlies and dev channel only). Be sure
> to disable it on your respective release branches.
> Please chime in if you have concerns. Wish us luck!
> :DG<
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