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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.
This commit is contained in:
Andreas Kling 2021-01-18 12:15:02 +01:00
parent fd83918476
commit 0639e77898
13 changed files with 26 additions and 14 deletions

View file

@ -31,6 +31,6 @@
namespace Web::Bindings {
EventTargetWrapper* wrap(JS::GlobalObject&, DOM::EventTarget&);
JS::Object* wrap(JS::GlobalObject&, DOM::EventTarget&);
}