[webkit-dev] Implementing slot-based shadow DOM API

[Ryosuke Niwa]

Hi all,

Now that our Slot Proposal [1] has been accepted by the Web Apps WG in
the latest editor's working draft of shadow DOM API [2], I've started
implementing in WebKit.  You can follow this effort on Bugzilla [3].
The feature will be enabled by default without prefix on trunk on Mac
and iOS ports and disabled elsewhere by default.

I'll let you all know once our implementation is mature enough to be
enabled on other ports.

We're also planning to deprecate and remove the old CSS selector-based
"v0" API implemented by Google before Blink fork as the code is no
longer maintained.  I've already moved the implementation to
HTMLDetailsElement [4] as it's the only feature in WebKit that still
uses this feature.

Please let me know if you have any comments or concerns.

[1] https://lists.w3.org/Archives/Public/public-webapps/2015AprJun/0184.html
[2] https://w3c.github.io/webcomponents/spec/shadow/
[3] https://bugs.webkit.org/show_bug.cgi?id=148695
[4] http://trac.webkit.org/changeset/189824

- R. Niwa