[webkit-dev] Implementing <style scoped>

[Ryosuke Niwa]

Very excited for this feature!

On Thu, Sep 8, 2011 at 2:28 PM, Roland Steiner
<rolandsteiner at chromium.org>wrote:
>
> As per discussion on
> http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2011-June/032056.html,
> our implementation would diverge from the current HTML5 spec
>

Why do diverge? It seems like we should at least prefix the attribute with
webkit in the case spec changes in the future.

The implementation plan is as follows:
>
> 1.) Add 'scoped' to HTMLStyleElement.idl and HTMLAttributeNames.in, as well
> as adding the required plumbing for the attribute
> 2.) Implement registering with the scoping element. For efficient matching
> it is necessary that an element can quickly discern whether or not it has
> <style scoped> as direct child(ren).
> 3.) Implement the meat of the matching (see below)
> 4.) Add support for scoped @keyframes and @font-face
>
> Note: https://bugs.webkit.org/show_bug.cgi?id=49142 already has a patch
> for steps 1-3 that works as advertised. In order to make it easier to
> review, I would just break it up into smaller chunks as outlined above.
>

Can we take these steps behind a flag given the attribute doesn't work
properly without some steps?

- Ryosuke
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