adapt windows + macos error types

src/capture/error.rs

@@ -18,18 +18,29 @@ pub enum CaptureCreationError {
     LayerShell(#[from] LayerShellCaptureCreationError),
     #[cfg(all(unix, feature = "x11", not(target_os = "macos")))]
     X11(#[from] X11InputCaptureCreationError),
+    #[cfg(target_os = "macos")]
+    Macos(#[from] MacOSInputCaptureCreationError),
+    #[cfg(windows)]
+    Windows,
 }
 
 impl Display for CaptureCreationError {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         let reason = match self {
+            #[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
             CaptureCreationError::Libei(reason) => {
                 format!("error creating portal backend: {reason}")
             }
+            #[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
             CaptureCreationError::LayerShell(reason) => {
                 format!("error creating layer-shell backend: {reason}")
             }
+            #[cfg(all(unix, feature = "x11", not(target_os = "macos")))]
             CaptureCreationError::X11(e) => format!("{e}"),
+            #[cfg(target_os = "macos")]
+            CaptureCreationError::Macos(e) => format!("{e}"),
+            #[cfg(windows)]
+            CaptureCreationError::Windows => String::from(""),
         };
         write!(f, "could not create input capture: {reason}")
     }
@@ -115,3 +126,15 @@ impl Display for X11InputCaptureCreationError {
         write!(f, "X11 input capture is not yet implemented :(")
     }
 }
+#[cfg(target_os = "macos")]
+#[derive(Debug, Error)]
+pub enum MacOSInputCaptureCreationError {
+    NotImplemented,
+}
+
+#[cfg(target_os = "macos")]
+impl Display for MacOSInputCaptureCreationError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "macos input capture is not yet implemented :(")
+    }
+}

src/capture/macos.rs

@@ -1,16 +1,17 @@
 use crate::capture::InputCapture;
 use crate::client::{ClientEvent, ClientHandle};
 use crate::event::Event;
-use anyhow::{anyhow, Result};
+use anyhow::Result;
 use futures_core::Stream;
 use std::task::{Context, Poll};
 use std::{io, pin::Pin};
+use crate::capture::error::MacOSInputCaptureCreationError;
 
 pub struct MacOSInputCapture;
 
 impl MacOSInputCapture {
-    pub fn new() -> Result<Self> {
+    pub fn new() -> std::result::Result<Self, MacOSInputCaptureCreationError> {
-        Err(anyhow!("not yet implemented"))
+        Err(MacOSInputCaptureCreationError::NotImplemented)
     }
 }