Bug 1404842 - Implement Element.attachShadow and Element.slot

Tag #1375

1 files changed, 17 insertions, 5 deletions

diff --git a/dom/webidl/Element.webidl b/dom/webidl/Element.webidl
index 7fc59d614..ddc548442 100644
--- a/dom/webidl/Element.webidl
+++ b/dom/webidl/Element.webidl
@@ -228,16 +228,28 @@ partial interface Element {
   NodeList  querySelectorAll(DOMString selectors);
 };
 
-// http://w3c.github.io/webcomponents/spec/shadow/#extensions-to-element-interface
+// https://dom.spec.whatwg.org/#dictdef-shadowrootinit
+dictionary ShadowRootInit {
+  required ShadowRootMode mode;
+};
+
+// https://dom.spec.whatwg.org/#element
 partial interface Element {
-  [Throws,Func="nsDocument::IsWebComponentsEnabled"]
-  ShadowRoot createShadowRoot();
-  [Func="nsDocument::IsWebComponentsEnabled"]
-  NodeList getDestinationInsertionPoints();
+  // Shadow DOM v1
+  [Throws, Pref="nsDocument::IsWebComponentsEnabled"]
+  ShadowRoot attachShadow(ShadowRootInit shadowRootInitDict);
   [Func="nsDocument::IsWebComponentsEnabled"]
   readonly attribute ShadowRoot? shadowRoot;
   [Pref="nsDocument::IsWebComponentsEnabled"]
   readonly attribute HTMLSlotElement? assignedSlot;
+  [CEReactions, Unscopable, SetterThrows, Pref="nsDocument::IsWebComponentsEnabled"]
+           attribute DOMString slot;
+
+  // [deprecated] Shadow DOM v0
+  [Throws, Pref="nsDocument::IsWebComponentsEnabled"]
+  ShadowRoot createShadowRoot();
+  [Pref="nsDocument::IsWebComponentsEnabled"]
+  NodeList getDestinationInsertionPoints();
 };
 
 Element implements ChildNode;