[BUG] the trait ObjectType is not implemented for Event

[jangernert]

Bug description

The webkit2gtk5-rs bindings contain IsA<gdk::Event> which fails to build with the message

error[E0277]: the trait bound `Event: ObjectType` is not satisfied
  --> webkit2gtk/src/auto/input_method_context.rs:32:49
   |
32 |     fn filter_key_event(&self, key_event: &impl IsA<gdk::Event>) -> bool;
   |                                                 ^^^^^^^^^^^^^^^ the trait `ObjectType` is not implemented for `Event`
   |
note: required by a bound in `IsA`
  --> /home/jeanluc/.cargo/git/checkouts/gtk-rs-core-7be42ca38bd6361c/1728bcb/glib/src/object.rs:85:25
   |
85 | pub unsafe trait IsA<T: ObjectType>: ObjectType + AsRef<T> + 'static {}
   |                         ^^^^^^^^^^ required by this bound in `IsA`

error[E0277]: the trait bound `Event: ObjectType` is not satisfied
   --> webkit2gtk/src/auto/input_method_context.rs:116:49
    |
116 |     fn filter_key_event(&self, key_event: &impl IsA<gdk::Event>) -> bool {
    |                                                 ^^^^^^^^^^^^^^^ the trait `ObjectType` is not implemented for `Event`
    |
note: required by a bound in `IsA`
   --> /home/jeanluc/.cargo/git/checkouts/gtk-rs-core-7be42ca38bd6361c/1728bcb/glib/src/object.rs:85:25
    |
85  | pub unsafe trait IsA<T: ObjectType>: ObjectType + AsRef<T> + 'static {}
    |                         ^^^^^^^^^^ required by this bound in `IsA`

I'm not entirely sure if this is an issue with the webkit bindings or gtk4-rs.

[bilelmoussaoui]

That's not an issue, gdk::Event is not an object. Gir generates a IsA relation which is not possible, instead you should manually override the methods for now and use AsRef<gdk::Event>

[bilelmoussaoui]

See gtk-rs/gir#1069 for the gir issue

[jangernert]

Thanks for the info