[Webkit-unassigned] [Bug 49142] Implement HTML5 style scoped attribute

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=49142





--- Comment #20 from Roland Steiner <rolandsteiner at chromium.org>  2011-05-31 01:31:10 PST ---
(In reply to comment #19)
> ... let's pick the simplest possible design and go with it.

In this case I would suggest a hybrid of your original suggestion and my last one:

1.) create a scope-ID by simply having an incrementing counter
2.) automatically add all scoped stylesheets in <template>s
3.) add an additional flag for scoped style-sheets that are just instances of one in a <template>

Scoped stylesheets with the flag set are not added/removed from the Document (their rules are already present by virtue of 2.) OTOH, scoped stylesheets that are added otherwise are dynamically added/removed as originally suggested.

This should be easy enough, while still avoiding any overhead on inserting/removing <x-foo> elements.

If there are no objections, I could give this version a go.

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