1 files changed, 86 insertions, 0 deletions
diff --git a/dom/events/MessageEvent.h b/dom/events/MessageEvent.h
new file mode 100644
index 000000000..4419b7927
--- /dev/null
+++ b/dom/events/MessageEvent.h
@@ -0,0 +1,86 @@
+/* -*- 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_MessageEvent_h_
+#define mozilla_dom_MessageEvent_h_
+
+#include "mozilla/dom/Event.h"
+#include "mozilla/dom/BindingUtils.h"
+#include "nsCycleCollectionParticipant.h"
+
+namespace mozilla {
+namespace dom {
+
+struct MessageEventInit;
+class MessagePort;
+class OwningWindowProxyOrMessagePort;
+class WindowProxyOrMessagePort;
+
+/**
+ * Implements the MessageEvent event, used for cross-document messaging and
+ * server-sent events.
+ *
+ * See http://www.whatwg.org/specs/web-apps/current-work/#messageevent for
+ * further details.
+ */
+class MessageEvent final : public Event
+{
+public:
+  MessageEvent(EventTarget* aOwner,
+               nsPresContext* aPresContext,
+               WidgetEvent* aEvent);
+
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(MessageEvent, Event)
+
+  // Forward to base class
+  NS_FORWARD_TO_EVENT
+
+  virtual JSObject* WrapObjectInternal(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+  void GetData(JSContext* aCx, JS::MutableHandle<JS::Value> aData,
+               ErrorResult& aRv);
+  void GetOrigin(nsAString&) const;
+  void GetLastEventId(nsAString&) const;
+  void GetSource(Nullable<OwningWindowProxyOrMessagePort>& aValue) const;
+
+  void GetPorts(nsTArray<RefPtr<MessagePort>>& aPorts);
+
+  static already_AddRefed<MessageEvent>
+  Constructor(const GlobalObject& aGlobal,
+              const nsAString& aType,
+              const MessageEventInit& aEventInit,
+              ErrorResult& aRv);
+
+  static already_AddRefed<MessageEvent>
+  Constructor(EventTarget* aEventTarget,
+              const nsAString& aType,
+              const MessageEventInit& aEventInit,
+              ErrorResult& aRv);
+
+  void InitMessageEvent(JSContext* aCx, const nsAString& aType, bool aCanBubble,
+                        bool aCancelable, JS::Handle<JS::Value> aData,
+                        const nsAString& aOrigin, const nsAString& aLastEventId,
+                        const Nullable<WindowProxyOrMessagePort>& aSource,
+                        const Sequence<OwningNonNull<MessagePort>>& aPorts);
+
+protected:
+  ~MessageEvent();
+
+private:
+  JS::Heap<JS::Value> mData;
+  nsString mOrigin;
+  nsString mLastEventId;
+  RefPtr<nsPIDOMWindowInner> mWindowSource;
+  RefPtr<MessagePort> mPortSource;
+
+  nsTArray<RefPtr<MessagePort>> mPorts;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_MessageEvent_h_