LibWeb: Make the Window object "inherit" from EventTarget :^)

Since Web::Bindings::WindowObject inherits from JS::GlobalObject, it
cannot also inherit from Web::Bindings::EventTargetWrapper.

However, that's not actually necessary. Instead, we simply set the
Window object's prototype to the EventTargetPrototype, and add a little
extra branch in the impl_from() function that turns the JS "this" value
into a DOM::EventTarget*.

With this, you can now call window.addEventListener()! Very cool :^)

Fixes #4758.

1 files changed, 1 insertions, 1 deletions

diff --git a/Userland/Libraries/LibWeb/HighResolutionTime/Performance.cpp b/Userland/Libraries/LibWeb/HighResolutionTime/Performance.cpp
index cdefa63eff..1de64d81fb 100644
--- a/Userland/Libraries/LibWeb/HighResolutionTime/Performance.cpp
+++ b/Userland/Libraries/LibWeb/HighResolutionTime/Performance.cpp
@@ -65,7 +65,7 @@ bool Performance::dispatch_event(NonnullRefPtr<DOM::Event> event)
     return DOM::EventDispatcher::dispatch(*this, event);
 }
 
-Bindings::EventTargetWrapper* Performance::create_wrapper(JS::GlobalObject& global_object)
+JS::Object* Performance::create_wrapper(JS::GlobalObject& global_object)
 {
     return Bindings::wrap(global_object, *this);
 }