[Webkit-unassigned] [Bug 154765] ::slotted doesn't work in nested shadow trees

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=154765

Ryosuke Niwa <rniwa at webkit.org> changed:

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--- Comment #9 from Ryosuke Niwa <rniwa at webkit.org> ---
Comment on attachment 272449
  --> https://bugs.webkit.org/attachment.cgi?id=272449
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=272449&action=review

>> LayoutTests/fast/shadow-dom/css-scoping-shadow-slotted-nested.html:55
>> +            outerShadow.appendChild(document.getElementById('outer-host-template').content.cloneNode(true));
> 
> BTW, I feel the current set of specs desperately needs a declarative way to attach shadow based on a template. Something like <outer-host shadow="outer-host-template"> to replace all this boilerplate.

Indeed.  We've suggested that three years but we've agreed to punt it in v1 so I guess that's that :(
It's really silly that attachShadow or defineElement doesn't take an optional argument though.
e.g.
document.defineElement('my-element', MyElementClass, {template: MyElementClass.template});
would go a long way to simplify this whole setup.

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