From 222d316c835019ce64603180e4a73b231b788d76 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <email@mattatobin.com>
Date: Fri, 17 Apr 2020 12:27:45 -0400
Subject: Bug 1425685 - Implement HTMLSlotElement.assignedElements();

Tag #1375
---
 dom/html/HTMLSlotElement.cpp | 11 +++++++++++
 dom/html/HTMLSlotElement.h   |  3 +++
 2 files changed, 14 insertions(+)

(limited to 'dom/html')

diff --git a/dom/html/HTMLSlotElement.cpp b/dom/html/HTMLSlotElement.cpp
index 18b8ef87b..1c17037af 100644
--- a/dom/html/HTMLSlotElement.cpp
+++ b/dom/html/HTMLSlotElement.cpp
@@ -168,6 +168,17 @@ HTMLSlotElement::AssignedNodes(const AssignedNodesOptions& aOptions,
   aNodes = mAssignedNodes;
 }
 
+void HTMLSlotElement::AssignedElements(const AssignedNodesOptions& aOptions,
+                                       nsTArray<RefPtr<Element>>& aElements) {
+  AutoTArray<RefPtr<nsINode>, 128> assignedNodes;
+  AssignedNodes(aOptions, assignedNodes);
+  for (const RefPtr<nsINode>& assignedNode : assignedNodes) {
+    if (assignedNode->IsElement()) {
+      aElements.AppendElement(assignedNode->AsElement());
+    }
+  }
+}
+
 const nsTArray<RefPtr<nsINode>>&
 HTMLSlotElement::AssignedNodes() const
 {
diff --git a/dom/html/HTMLSlotElement.h b/dom/html/HTMLSlotElement.h
index 0494a654e..51affc2af 100644
--- a/dom/html/HTMLSlotElement.h
+++ b/dom/html/HTMLSlotElement.h
@@ -55,6 +55,9 @@ public:
   void AssignedNodes(const AssignedNodesOptions& aOptions,
                      nsTArray<RefPtr<nsINode>>& aNodes);
 
+  void AssignedElements(const AssignedNodesOptions& aOptions,
+                        nsTArray<RefPtr<Element>>& aNodes);
+
   // Helper methods
   const nsTArray<RefPtr<nsINode>>& AssignedNodes() const;
   void InsertAssignedNode(uint32_t aIndex, nsINode* aNode);
-- 
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