Document that window::Action::Move is unsupported on Wayland

[ids1024]

https://docs.rs/winit/latest/winit/window/struct.Window.html#method.set_outer_position notes that this isn't supported on Wayland.

Wayland by design doesn't allow applications to position windows arbitrarily. GTK4 in comparison removed gtk_window_move() (which naturally didn't work on Wayland).

[13r0ck]

This is a limitation of smithay-client-toolkit not exposing a way for winit to specify a window as xdg_popup, once that is in place the new multi-window should be able to expose the type of window for wayland (either xdg_popup or xdg_toplevel)

[ids1024]

Then there will need to be a different API to provide a relative position of the popup using xdg_positioner (and similar relative positioning on X/Windows/macOS/etc.).

[ids1024]

This is a limitation of smithay-client-toolkit not exposing a way for winit to specify a window as xdg_popup

It looks like the git version of smithay-client-toolkit adds some helpers for popups, that don't exist in the release that's used in winit (though the api of smithay-client-toolkit and wayland-rs have changed a lot in breaking ways since the last release). But it should also possible to do things like that without helpers from smithay-client-toolkit, it just takes more manual code.

[13r0ck]

But it should also possible to do things like that without helpers from smithay-client-toolkit, it just takes more manual code.

PR's welcome 🤪

[hecrj]

Thanks! 🙇