Add xx_input_method_v1 support.

[dcz-self]

Implements https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/407

Notably missing: repositioning, reactivity of the popup.

EDIT: this replaces the previous input method for now, so I made it a draft instead.

[dcz-self]

To test:

• stiwri from "popup" branch https://codeberg.org/dcz/stiwri/src/branch/popup

# in anvil
cargo run --release -- --winit &
WAYLAND_DISPLAY=wayland-1 yad &
# in stiwri
WAYLAND_DISPLAY=wayland-1 cargo run --release --bin im_popup

[dcz-self]

This is an implementation of https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/407

[dcz-self]

Lookng at CI failures, I need some help understanding what they are.

For example, this code wasn't even touched by my change.

  error: fields `popup_geometry_callback`, `new_popup`, and `popup_repositioned` are never read
     --> src/wayland/input_method/input_method_handle.rs:172:16

There's also the ack_configure callback which is for some reason exposed to the compositor, but I don't really understand why, so I couldn't come up with a sensible doc comment.

[ids1024]

For example, this code wasn't even touched by my change.

I think that's a result of the earlier warning. Because certain methods are never used, the variables that are read only in those methods are never read.

[dcz-self]

Added repositioning:

WAYLAND_DISPLAY=wayland-1 cargo run --release --bin im_popup_reposition

Screencast_20250524_202116.webm

[dcz-self]

I did some cleanups:

• lints, except the ack_configure which I don't understand
• both input methods are supported and working

Is there anything I can do to make reviewing this easier?

[rano-oss]

This might be useful as a way to communicate that the compositor closed the popup? Or is it redundant since normally that would follow from a deactivate?

[rano-oss]

There was nothing to do previously since there was no concept of how the popup should function. But you are free to add that now if it is needed

[dcz-self]

Yes, the only time the compositor closes the popup is in deactivate, so I decided there's no need for another notification. Would one be useful?

[rano-oss]

run these on your branch and correct them btw:
cargo clippy --features "test_all_features" -- -D warnings
cargo fmt --all -- --check
cargo hack check --each-feature --no-dev-deps --exclude-features use_bindgen

[rano-oss]

LGTM otherwise, someone that knows xdg positioner should probably have a look at the positioner and popup part

[dcz-self]

The only thing left that breaks ci is the ack_configure which I have no idea what to do with.

[rano-oss]

Just add documentation to this function:

error: missing documentation for a method
   --> src/wayland/input_method_v3/mod.rs:131:5
    |
131 | /     fn popup_ack_configure(
132 | |         &mut self,
133 | |         _surface: &WlSurface,
134 | |         _serial: Serial,
135 | |         _client_state: PopupSurfaceState,
136 | |     ) {
    | |_____^
    |
    = note: `-D missing-docs` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(missing_docs)]`

[dcz-self]

Well that's the problem, I don't have a clue what it's meant to do :P I copy-pasted it without understanding and I hope a reviewer can enlighten me.