28031 2015-02-16 01:49:26 +0000 Does the destination insertion points include Shadow IP without older trees? 2015-02-16 05:15:14 +0000 1 1 1 Unclassified WebAppsWG HISTORICAL - Component Model unspecified All All RESOLVED WONTFIX P2 normal --- 23887 1 kojiishi kojiishi bzbarsky dglazkov hayato jonas mike public-webapps sorvell sorvell wchen public-webapps-bugzilla oldest_to_newest 117941 0 kojiishi 2015-02-16 01:49:26 +0000 From comment 150 of bug 23887. Consider a tree: A SR SIP B The question is does B's "destination insertion points"[1] include the SIP? The argument to include is that "3.3 Shadow Insertion Points"[2] defines such SIP as a valid shadow insertion points. The argument not to include is that the definition of "destination insertion points" in "3.4 Distribution Results"[1] says: > destination insertion points, which consists of insertion points to where the node is distributed But the sentence looks a bit confusing regardless of this issue, because a node is distributed only to the final destination point, so the destination insertion points being a list of "node *is* distributed" looks inaccurate. So two suggestions here: 1. Fix the 3.4 wording from "is" to "may be". It's inaccurate anyway. 2. Discuss whether such SIP should be included, and if we conclude not to, change the definition of "3.3 Shadow Insertion Points"[2]. Note that this issue can affect more than event path, such as Element.getDestinationInsertionPoints[3]. [1] http://w3c.github.io/webcomponents/spec/shadow/#dfn-destination-insertion-points [2] http://w3c.github.io/webcomponents/spec/shadow/#shadow-insertion-points [3] http://w3c.github.io/webcomponents/spec/shadow/#extensions-to-element-interface 117945 1 hayato 2015-02-16 02:17:55 +0000 > But the sentence looks a bit confusing regardless of this issue, because a > node is distributed only to the final destination point I'm afraid that's the root cause of your confusing. A node can be distributed to multiple insertion points. The final destination point is just one of that. I think the spec is clear for that. 117949 2 kojiishi 2015-02-16 05:04:15 +0000 The final destination point is clear. What's not clear to me is whether "destination insertion points" includes "a shadow insertion point without older shadow roots". Such shadow insertion points are still valid according to the definition of shadow insertion points. However, since there's no older shadow roots, content will never be distributed to it. Does "destination insertion points" include "a valid insertion point where content will never be distributed to"? 117950 3 kojiishi 2015-02-16 05:15:14 +0000 Talked with Hayato and understood what I misunderstood. I thought content will never be distributed the shadow insertion point. Sorry for the trouble.