avm2: Use NativeCallable in Stage3D code

core/src/avm2/globals/flash/display/stage_3d.rs

@@ -1,10 +1,8 @@
-use ruffle_render::backend::Context3DProfile;
-
-use crate::avm2::object::Context3DObject;
-use crate::avm2::object::TObject;
-
+use crate::avm2::globals::methods::flash_events_event_dispatcher as event_dispatcher_methods;
+use crate::avm2::object::{Context3DObject, EventObject, TObject};
 use crate::avm2::parameters::ParametersExt;
 use crate::avm2::{Activation, Error, Value};
+use ruffle_render::backend::Context3DProfile;
 
 pub use crate::avm2::object::stage_3d_allocator;
 
@@ -62,13 +60,13 @@ pub fn request_context3d_internal<'gc>(
         let context3d_obj = Context3DObject::from_context(activation, context, this_stage3d)?;
         this_stage3d.set_context3d(Some(context3d_obj), activation.gc());
 
-        let event = activation
-            .avm2()
-            .classes()
-            .event
-            .construct(activation, &["context3DCreate".into()])?;
+        let event = EventObject::bare_default_event(activation.context, "context3DCreate");
 
-        this.call_public_property("dispatchEvent", &[event], activation)?;
+        this.call_method(
+            event_dispatcher_methods::DISPATCH_EVENT,
+            &[event.into()],
+            activation,
+        )?;
     }
 
     Ok(Value::Undefined)

core/src/avm2/globals/flash/events/EventDispatcher.as

@@ -14,6 +14,7 @@ package flash.events {
         public native function removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void;
         public native function hasEventListener(type:String):Boolean;
 
+        [Ruffle(NativeCallable)]
         public function dispatchEvent(event:Event):Boolean {
             // Some SWFs rely on the getter for `target` being called
             if (event.target) {