1 files changed, 53 insertions, 0 deletions
diff --git a/dom/events/MutationEvent.h b/dom/events/MutationEvent.h
new file mode 100644
index 0000000000..5751715038
--- /dev/null
+++ b/dom/events/MutationEvent.h
@@ -0,0 +1,53 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_MutationEvent_h_
+#define mozilla_dom_MutationEvent_h_
+
+#include "mozilla/EventForwards.h"
+#include "mozilla/dom/Event.h"
+#include "mozilla/dom/MutationEventBinding.h"
+#include "nsINode.h"
+
+namespace mozilla::dom {
+
+class MutationEvent : public Event {
+ public:
+  MutationEvent(EventTarget* aOwner, nsPresContext* aPresContext,
+                InternalMutationEvent* aEvent);
+
+  NS_INLINE_DECL_REFCOUNTING_INHERITED(MutationEvent, Event)
+
+  virtual JSObject* WrapObjectInternal(
+      JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override {
+    return MutationEvent_Binding::Wrap(aCx, this, aGivenProto);
+  }
+
+  void GetPrevValue(nsAString& aPrevValue) const;
+  void GetNewValue(nsAString& aNewValue) const;
+  void GetAttrName(nsAString& aAttrName) const;
+
+  nsINode* GetRelatedNode();
+
+  uint16_t AttrChange();
+
+  void InitMutationEvent(const nsAString& aType, bool aCanBubble,
+                         bool aCancelable, nsINode* aRelatedNode,
+                         const nsAString& aPrevValue,
+                         const nsAString& aNewValue, const nsAString& aAttrName,
+                         uint16_t& aAttrChange, ErrorResult& aRv);
+
+ protected:
+  ~MutationEvent() = default;
+};
+
+}  // namespace mozilla::dom
+
+already_AddRefed<mozilla::dom::MutationEvent> NS_NewDOMMutationEvent(
+    mozilla::dom::EventTarget* aOwner, nsPresContext* aPresContext,
+    mozilla::InternalMutationEvent* aEvent);
+
+#endif  // mozilla_dom_MutationEvent_h_