Ability to listen on surface Unfocus events

[Exidex]

PopOS's Iced fork has an ability to listen on unfocus events, e.g. clicking outside of surface, which is useful for application launcher-like applications

See implementation in PopOS's fork: https://github.com/pop-os/iced/blob/5a3803923ee13388ef8638675f237998443aa45c/winit/src/platform_specific/wayland/sctk_event.rs#L460-L470

[Decodetalkers]

Emm, iced fork patch the iced::event, but we are not fork, so.. but I have already submit a pr for iced

iced-rs/iced#2658

[Exidex]

@Decodetalkers while not a general solution, you could probably reuse iced window Unfocus event https://github.com/iced-rs/iced/blob/master/core/src/window/event.rs#L40-L43

[Decodetalkers]

I have already handle the Unfocus event now.. Emm

[Exidex]

Great! Thanks for doing it so fast