fix compilation errors

src/emulate.rs

@@ -2,7 +2,9 @@ use async_trait::async_trait;
 use std::future;
 
 use crate::{
-    client::{ClientEvent, ClientHandle}, config::EmulationBackend, event::Event
+    client::{ClientEvent, ClientHandle},
+    config::EmulationBackend,
+    event::Event,
 };
 use anyhow::Result;
 
@@ -43,7 +45,18 @@ pub trait InputEmulation: Send {
     async fn destroy(&mut self);
 }
 
-pub async fn create(backend: Option<EmulationBackend>) -> Result<Box<dyn InputEmulation>, EmulationCreationError> {
+pub async fn create(
+    backend: Option<EmulationBackend>,
+) -> Result<Box<dyn InputEmulation>, EmulationCreationError> {
+    if let Some(backend) = backend {
+        return match backend {
+            EmulationBackend::Libei => Ok(Box::new(libei::LibeiEmulation::new().await?)),
+            EmulationBackend::Wlroots => Ok(Box::new(wlroots::WlrootsEmulation::new()?)),
+            EmulationBackend::X11 => Ok(Box::new(x11::X11Emulation::new()?)),
+            EmulationBackend::Dummy => Ok(Box::new(dummy::DummyEmulation::new())),
+        };
+    }
+
     #[cfg(windows)]
     match windows::WindowsEmulation::new() {
         Ok(c) => return Ok(Box::new(c)),

src/emulate/error.rs

@@ -1,8 +1,11 @@
 use std::{fmt::Display, io};
 
 use thiserror::Error;
-use wayland_client::{backend::WaylandError, globals::{BindError, GlobalError}, ConnectError, DispatchError};
-
+use wayland_client::{
+    backend::WaylandError,
+    globals::{BindError, GlobalError},
+    ConnectError, DispatchError,
+};
 
 #[derive(Debug, Error)]
 pub enum EmulationCreationError {
@@ -20,9 +23,9 @@ impl Display for EmulationCreationError {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         let reason = match self {
             EmulationCreationError::Wlroots(e) => format!("wlroots backend: {e}"),
-            EmulationCreationError::Libei(e) => todo!("libei backend: {e}"),
-            EmulationCreationError::Xdp(e) => todo!("desktop portal backend: {e}"),
-            EmulationCreationError::X11(e) => todo!("x11 backend: {e}"),
+            EmulationCreationError::Libei(e) => format!("libei backend: {e}"),
+            EmulationCreationError::Xdp(e) => format!("desktop portal backend: {e}"),
+            EmulationCreationError::X11(e) => format!("x11 backend: {e}"),
         };
         write!(f, "could not create input emulation backend: {reason}")
     }
@@ -52,7 +55,6 @@ impl WaylandBindError {
     }
 }
 
-
 #[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
 impl Display for WaylandBindError {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
@@ -84,15 +86,36 @@ impl Display for WlrootsEmulationCreationError {
 
 #[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
 #[derive(Debug, Error)]
-pub enum LibeiEmulationCreationError {}
+pub enum LibeiEmulationCreationError {
+    Ashpd(#[from] ashpd::Error),
+    Io(#[from] io::Error),
+}
 
+#[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
+impl Display for LibeiEmulationCreationError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            LibeiEmulationCreationError::Ashpd(e) => write!(f, "xdg-desktop-portal: {e}"),
+            LibeiEmulationCreationError::Io(e) => write!(f, "io error: {e}"),
+        }
+    }
+}
 
 #[cfg(all(unix, feature = "xdg_desktop_portal", not(target_os = "macos")))]
 #[derive(Debug, Error)]
 pub enum XdpEmulationCreationError {}
 
-
-
 #[cfg(all(unix, feature = "x11", not(target_os = "macos")))]
 #[derive(Debug, Error)]
-pub enum X11EmulationCreationError {}
+pub enum X11EmulationCreationError {
+    OpenDisplay,
+}
+
+#[cfg(all(unix, feature = "x11", not(target_os = "macos")))]
+impl Display for X11EmulationCreationError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            X11EmulationCreationError::OpenDisplay => write!(f, "could not open display!"),
+        }
+    }
+}

src/emulate/libei.rs

@@ -1,6 +1,7 @@
 use anyhow::{anyhow, Result};
 use std::{
     collections::HashMap,
+    io,
     os::{fd::OwnedFd, unix::net::UnixStream},
     time::{SystemTime, UNIX_EPOCH},
 };
@@ -27,6 +28,8 @@ use crate::{
     event::Event,
 };
 
+use super::error::LibeiEmulationCreationError;
+
 pub struct LibeiEmulation {
     handshake: bool,
     context: ei::Context,
@@ -77,14 +80,14 @@ async fn get_ei_fd() -> Result<OwnedFd, ashpd::Error> {
 }
 
 impl LibeiEmulation {
-    pub async fn new() -> Result<Self> {
+    pub async fn new() -> Result<Self, LibeiEmulationCreationError> {
         // fd is owned by the message, so we need to dup it
         let eifd = get_ei_fd().await?;
         let stream = UnixStream::from(eifd);
         // let stream = UnixStream::connect("/run/user/1000/eis-0")?;
         stream.set_nonblocking(true)?;
         let context = ei::Context::new(stream)?;
-        context.flush()?;
+        context.flush().map_err(|e| io::Error::new(e.kind(), e))?;
         let events = EiEventStream::new(context.clone())?;
         Ok(Self {
             handshake: false,

src/emulate/wlroots.rs

@@ -1,5 +1,5 @@
 use crate::client::{ClientEvent, ClientHandle};
-use crate::emulate::{InputEmulation, error::WlrootsEmulationCreationError};
+use crate::emulate::{error::WlrootsEmulationCreationError, InputEmulation};
 use async_trait::async_trait;
 use std::collections::HashMap;
 use std::io;
@@ -53,12 +53,15 @@ impl WlrootsEmulation {
         let (globals, queue) = registry_queue_init::<State>(&conn)?;
         let qh = queue.handle();
 
-        let seat: wl_seat::WlSeat = globals.bind(&qh, 7..=8, ())
+        let seat: wl_seat::WlSeat = globals
+            .bind(&qh, 7..=8, ())
             .map_err(|e| WaylandBindError::new(e, "wl_seat 7..=8"))?;
 
-        let vpm: VpManager = globals.bind(&qh, 1..=1, ())
+        let vpm: VpManager = globals
+            .bind(&qh, 1..=1, ())
             .map_err(|e| WaylandBindError::new(e, "wlr-virtual-pointer-unstable-v1"))?;
-        let vkm: VkManager = globals.bind(&qh, 1..=1, ())
+        let vkm: VkManager = globals
+            .bind(&qh, 1..=1, ())
             .map_err(|e| WaylandBindError::new(e, "virtual-keyboard-unstable-v1"))?;
 
         let input_for_client: HashMap<ClientHandle, VirtualInput> = HashMap::new();

src/emulate/x11.rs

@@ -1,4 +1,3 @@
-use anyhow::{anyhow, Result};
 use async_trait::async_trait;
 use std::ptr;
 use x11::{
@@ -14,6 +13,8 @@ use crate::{
     },
 };
 
+use super::error::X11EmulationCreationError;
+
 pub struct X11Emulation {
     display: *mut xlib::Display,
 }
@@ -21,11 +22,11 @@ pub struct X11Emulation {
 unsafe impl Send for X11Emulation {}
 
 impl X11Emulation {
-    pub fn new() -> Result<Self> {
+    pub fn new() -> Result<Self, X11EmulationCreationError> {
         let display = unsafe {
             match xlib::XOpenDisplay(ptr::null()) {
                 d if d == ptr::null::<xlib::Display>() as *mut xlib::Display => {
-                    Err(anyhow!("could not open display"))
+                    Err(X11EmulationCreationError::OpenDisplay)
                 }
                 display => Ok(display),
             }

src/main.rs

@@ -71,7 +71,9 @@ fn run_service(config: &Config) -> Result<()> {
         log::info!("Press {:?} to release the mouse", config.release_bind);
 
         let server = Server::new(config);
-        server.run(config.capture_backend, config.emulation_backend).await?;
+        server
+            .run(config.capture_backend, config.emulation_backend)
+            .await?;
 
         log::debug!("service exiting");
         anyhow::Ok(())

src/server/emulation_task.rs

@@ -7,7 +7,12 @@ use tokio::{
 };
 
 use crate::{
-    client::{ClientEvent, ClientHandle}, config::EmulationBackend, emulate::{self, error::EmulationCreationError, InputEmulation}, event::{Event, KeyboardEvent}, scancode, server::State
+    client::{ClientEvent, ClientHandle},
+    config::EmulationBackend,
+    emulate::{self, error::EmulationCreationError, InputEmulation},
+    event::{Event, KeyboardEvent},
+    scancode,
+    server::State,
 };
 
 use super::{CaptureEvent, Server};