jay-compositor 1.15.0

use crate::client::Client;
use crate::leaks::Tracker;
use crate::object::Version;
use crate::wire::JayXwaylandId;
use crate::wire::jay_xwayland::*;
use jay_config::xwayland::XScalingMode;
use jay_proc::Object;
use std::rc::Rc;
use thiserror::Error;

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

impl JayXwayland {
    fn send_scaling_mode(&self) {
        let xw = &self.client.state.xwayland;
        self.client.event(ScalingMode {
            self_id: self.id,
            mode: match xw.use_wire_scale.get() {
                false => XScalingMode::DEFAULT.0,
                true => XScalingMode::DOWNSCALED.0,
            },
        });
    }

    fn send_implied_scale(&self) {
        let xw = &self.client.state.xwayland;
        if let Some(scale) = xw.wire_scale.get() {
            self.client.event(ImpliedScale {
                self_id: self.id,
                scale,
            });
        }
    }
}

impl JayXwaylandRequestHandler for JayXwayland {
    type Error = JayXwaylandError;

    fn get_scaling(&self, _req: GetScaling, _slf: &Rc<Self>) -> Result<(), Self::Error> {
        self.send_scaling_mode();
        self.send_implied_scale();
        Ok(())
    }

    fn set_scaling_mode(&self, req: SetScalingMode, _slf: &Rc<Self>) -> Result<(), Self::Error> {
        let use_wire_scale = match XScalingMode(req.mode) {
            XScalingMode::DEFAULT => false,
            XScalingMode::DOWNSCALED => true,
            _ => return Err(JayXwaylandError::UnknownMode(req.mode)),
        };
        self.client
            .state
            .set_xwayland_use_wire_scale(use_wire_scale);
        Ok(())
    }
}

#[derive(Debug, Error)]
pub enum JayXwaylandError {
    #[error("Unknown scaling mode {}", .0)]
    UnknownMode(u32),
}