LibWeb: Add the missing MessageEvent IDL constructor

1 files changed, 17 insertions, 6 deletions

diff --git a/Userland/Libraries/LibWeb/HTML/MessageEvent.h b/Userland/Libraries/LibWeb/HTML/MessageEvent.h
index 32b80883cb..e08c001eb0 100644
--- a/Userland/Libraries/LibWeb/HTML/MessageEvent.h
+++ b/Userland/Libraries/LibWeb/HTML/MessageEvent.h
@@ -10,13 +10,23 @@
 
 namespace Web::HTML {
 
+struct MessageEventInit : public DOM::EventInit {
+    JS::Value data { JS::js_null() };
+    String origin { "" };
+    String last_event_id { "" };
+};
+
 class MessageEvent : public DOM::Event {
 public:
     using WrapperType = Bindings::MessageEventWrapper;
 
-    static NonnullRefPtr<MessageEvent> create(const FlyString& event_name, JS::Value data, String const& origin)
+    static NonnullRefPtr<MessageEvent> create(FlyString const& event_name, MessageEventInit const& event_init = {})
+    {
+        return adopt_ref(*new MessageEvent(event_name, event_init));
+    }
+    static NonnullRefPtr<MessageEvent> create_with_global_object(Bindings::WindowObject&, FlyString const& event_name, MessageEventInit const& event_init)
     {
-        return adopt_ref(*new MessageEvent(event_name, data, origin));
+        return MessageEvent::create(event_name, event_init);
     }
 
     virtual ~MessageEvent() override = default;
@@ -26,10 +36,11 @@ public:
     String const& last_event_id() const { return m_last_event_id; }
 
 protected:
-    MessageEvent(const FlyString& event_name, JS::Value data, String origin)
-        : DOM::Event(event_name)
-        , m_data(data)
-        , m_origin(move(origin))
+    MessageEvent(FlyString const& event_name, MessageEventInit const& event_init)
+        : DOM::Event(event_name, event_init)
+        , m_data(event_init.data)
+        , m_origin(event_init.origin)
+        , m_last_event_id(event_init.last_event_id)
     {
     }