jay-compositor 1.15.0

The Jay compositor
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use crate::client::Client;
use crate::cursor::KnownCursor;
use crate::ifs::wl_seat::WlSeatGlobal;
use crate::leaks::Tracker;
use crate::object::Version;
use crate::wire::JayPointerId;
use crate::wire::jay_pointer::*;
use jay_proc::Object;
use num_traits::FromPrimitive;
use std::rc::Rc;
use thiserror::Error;

#[derive(Object)]
pub struct JayPointer {
    pub id: JayPointerId,
    pub version: Version,
    pub client: Rc<Client>,
    pub seat: Rc<WlSeatGlobal>,
    pub tracker: Tracker<Self>,
}

impl JayPointerRequestHandler for JayPointer {
    type Error = JayPointerError;

    fn destroy(&self, _req: Destroy, _slf: &Rc<Self>) -> Result<(), Self::Error> {
        self.client.remove_obj(self);
        Ok(())
    }

    fn set_known_cursor(&self, req: SetKnownCursor, _slf: &Rc<Self>) -> Result<(), Self::Error> {
        let Some(cursor) = KnownCursor::from_u32(req.idx) else {
            return Err(JayPointerError::OutOfBounds);
        };
        let Some(pointer_node) = self.seat.pointer_node() else {
            // cannot happen
            return Ok(());
        };
        if pointer_node.node_client_id() != Some(self.client.id) {
            return Ok(());
        }
        self.seat.pointer_cursor().set_known(cursor);
        Ok(())
    }
}

#[derive(Debug, Error)]
pub enum JayPointerError {
    #[error("Cursor index is out of bounds")]
    OutOfBounds,
}