28493 2015-04-15 06:37:12 +0000 [Shadow]: Have a common interface between Document and ShadowRoot 2015-05-27 03:04:24 +0000 1 1 1 Unclassified WebAppsWG HISTORICAL - Component Model unspecified PC All RESOLVED MOVED P2 normal --- 28552 1 hayato hayato annevk jackalmage mike public-webapps public-webapps-bugzilla oldest_to_newest 119516 0 hayato 2015-04-15 06:37:12 +0000 # This is separated from https://www.w3.org/Bugs/Public/show_bug.cgi?id=27829#c2 Instead of defining these in Shadow Root as well as in Document, I've started to feel that it'd be better that we have the common interface between Document and Shadow Root. e.g. interface NodeTreeRoot { Element? elementFromPoint(double x, double y); sequence<Element> elementsFromPoint(double x, double y); CaretPosition? caretPositionFromPoint(double x, double y); Selection? getSelection (); readonly attribute Element? activeElement; readonly attribute StyleSheetList styleSheets; }; Document implements NodeTreeRoot; ShadowRoot implements NodeTreeRoot; 119521 1 annevk 2015-04-15 08:22:32 +0000 Perhaps something along the lines of LayoutRoot? 119526 2 hayato 2015-04-15 09:27:47 +0000 Thank you. BTW, in Blink, we use a term of *TreeScope* for this purpose, at least in C++. Both Document and ShadowRoot implements TreeScope. (In reply to Anne from comment #1) > Perhaps something along the lines of LayoutRoot? So the candidates are: - NodeTreeRoot - LayoutRoot - TreeScope Any other better idea? 119527 3 annevk 2015-04-15 09:32:58 +0000 TreeScope and NodeTreeRoot both have the problem that their terminology also applies to Element and DocumentFragment. What's special about ShadowRoot and Document is that they are layout/CSS/stylesheet boundaries. 119530 4 hayato 2015-04-15 11:29:25 +0000 Thank you for the explanation. I understand. Only Document and ShadowRoot contribute to Layout Tree. That's true! +1 for LayoutRoot. 119540 5 jackalmage 2015-04-15 16:44:38 +0000 I used the name "TreeScope" in <http://tabatkins.github.io/specs/construct-stylesheets/#adding-stylesheets>. But Anne's comments make some sense. I'm fine with LayoutRoot. 120513 6 hayato 2015-05-27 03:04:24 +0000 Moved to https://github.com/w3c/webcomponents/issues/91