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-rw-r--r--lib/dom_utils.coffee6
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/dom_utils.coffee b/lib/dom_utils.coffee
index ad88deae..ee7d415f 100644
--- a/lib/dom_utils.coffee
+++ b/lib/dom_utils.coffee
@@ -370,5 +370,11 @@ DomUtils =
text
texts.join " "
+ # Get the element in the DOM hierachy that contains `element`.
+ # If the element is rendered in a shadow DOM via a <content> element, the <content> element will be
+ # returned, so the shadow DOM is traversed rather than passed over.
+ getContainingElement: (element) ->
+ element.getDestinationInsertionPoints()[0] or element.parentElement
+
root = exports ? window
root.DomUtils = DomUtils