Bug 1234403 - Part 2: Implement document.getAnimations. r=birtles

dom/base/nsDocument.cpp

@@ -3141,13 +3141,6 @@ nsDocument::GetAnimations(nsTArray<RefPtr<Animation>>& aAnimations)
 {
   FlushPendingNotifications(Flush_Style);
 
-  // Bug 1174575: Until we implement a suitable PseudoElement interface we
-  // don't have anything to return for the |target| attribute of
-  // KeyframeEffect(ReadOnly) objects that refer to pseudo-elements.
-  // Rather than return some half-baked version of these objects (e.g.
-  // we a null effect attribute) we simply don't provide access to animations
-  // whose effect refers to a pseudo-element until we can support them
-  // properly.
   for (nsIContent* node = nsINode::GetFirstChild();
        node;
        node = node->GetNextNode(this)) {
@@ -3155,8 +3148,12 @@ nsDocument::GetAnimations(nsTArray<RefPtr<Animation>>& aAnimations)
       continue;
     }
 
-    Element::GetAnimationsUnsorted(node->AsElement(),
-                                   CSSPseudoElementType::NotPseudo,
+    Element* element = node->AsElement();
+    Element::GetAnimationsUnsorted(element, CSSPseudoElementType::NotPseudo,
+                                   aAnimations);
+    Element::GetAnimationsUnsorted(element, CSSPseudoElementType::before,
+                                   aAnimations);
+    Element::GetAnimationsUnsorted(element, CSSPseudoElementType::after,
                                    aAnimations);
   }