17674 2012-07-03 05:44:03 +0000 [Shadow]: /select/ combinator not included in rule applicability algorithm 2012-08-03 21:43:58 +0000 1 1 1 Unclassified WebAppsWG HISTORICAL - Component Model unspecified All All RESOLVED FIXED P2 normal --- 16009 1 rolandsteiner dglazkov dominicc public-webapps-bugzilla oldest_to_newest 69579 0 rolandsteiner 2012-07-03 05:44:03 +0000 The exception that a /select/ combinator applies to DOM elements outside the shadow tree, i.e., elements distributed to insertion points (and presumably their descendants), as described in [5.4], is not reflected in the style application rules in [7]. 69580 1 dominicc 2012-07-03 06:10:59 +0000 This comment is related: <https://www.w3.org/Bugs/Public/show_bug.cgi?id=17590#c2> 71532 2 dglazkov 2012-07-26 22:36:39 +0000 I think I've wandered into some ambiguity here, would appreciate advice on how to fix this. The fact that the rule applies or does not apply in a given subtree is orthogonal to whether or not this rule can select elements from any other subtree or not. 71620 3 dglazkov 2012-07-27 18:21:32 +0000 Closing for now unless you guys pipe in and say that I shouldn't. 71648 4 dominicc 2012-07-30 00:36:52 +0000 I think this should be reopened. I’m pasting my comment from <https://www.w3.org/Bugs/Public/show_bug.cgi?id=17590#c2> here: (snip) The spec contains this language: "CSS rules declared in a shadow DOM subtree must not apply in the document tree" I think an exception needs to be carved out for @host rules and rules using /select/. There is a quasi-exception in the form of a conflicting requirement for @host: "The declarations in the @host @-rule must be applied to the shadow host of the shadow DOM subtree in which the style is specified." But I think the first requirement needs to be articulated to mention @host and /select/. It would be nice if the CSS application algorithm could specify all of this too. (/snip) As it stands it seems like content /select/ .foo can be optimized to a no-op, because irregardless of what the selector matches, it is outside of the shadow subtree, so it must not apply. 71681 5 dglazkov 2012-07-30 21:49:45 +0000 Clearly I need to be more clear in the spec. 71830 6 dglazkov 2012-08-03 21:43:58 +0000 http://dvcs.w3.org/hg/webcomponents/rev/be8a6942330c Whew! This was harder than I originally thought!