Separate watchers to a module

src/main.rs

@@ -4,15 +4,8 @@
 extern crate log;
 
 mod config;
-mod kwin_window;
 mod report_client;
-mod wl_bindings;
-mod wl_connection;
-mod wl_foreign_toplevel;
-mod wl_kwin_idle;
-mod x11_connection;
-mod x11_screensaver_idle;
-mod x11_window;
+mod watchers;
 
 use config::Config;
 use fern::colors::{Color, ColoredLevelConfig};
@@ -20,55 +13,10 @@ use report_client::ReportClient;
 use std::env;
 use std::{error::Error, str::FromStr, sync::Arc, thread};
 
+use crate::watchers::ConstructorFilter;
+
 type BoxedError = Box<dyn Error>;
 
-trait Watcher: Send {
-    fn new() -> Result<Self, BoxedError>
-    where
-        Self: Sized;
-    fn watch(&mut self, client: &Arc<ReportClient>);
-}
-
-type BoxedWatcher = Box<dyn Watcher>;
-
-type WatcherConstructor = (&'static str, fn() -> Result<BoxedWatcher, BoxedError>);
-type WatcherConstructors = [WatcherConstructor];
-
-trait WatchersFilter {
-    fn filter_first_supported(&self) -> Option<BoxedWatcher>;
-}
-
-impl WatchersFilter for WatcherConstructors {
-    fn filter_first_supported(&self) -> Option<BoxedWatcher> {
-        self.iter().find_map(|(name, watcher)| match watcher() {
-            Ok(watcher) => Some(watcher),
-            Err(e) => {
-                info!("{name} cannot run: {e}");
-                None
-            }
-        })
-    }
-}
-
-macro_rules! watcher {
-    ($watcher_struct:ty) => {
-        (stringify!($watcher_struct), || {
-            Ok(Box::new(<$watcher_struct>::new()?))
-        })
-    };
-}
-
-const IDLE_WATCHERS: &[WatcherConstructor] = &[
-    watcher!(wl_kwin_idle::IdleWatcher),
-    watcher!(x11_screensaver_idle::IdleWatcher),
-];
-
-const ACTIVE_WINDOW_WATCHERS: &[WatcherConstructor] = &[
-    watcher!(wl_foreign_toplevel::WindowWatcher),
-    watcher!(kwin_window::WindowWatcher),
-    watcher!(x11_window::WindowWatcher),
-];
-
 fn setup_logger() -> Result<(), fern::InitError> {
     let log_setting = env::var("AWATCHER_LOG").unwrap_or("info".to_string());
 
@@ -128,7 +76,7 @@ fn main() -> Result<(), BoxedError> {
 
     let mut thread_handlers = Vec::new();
 
-    let idle_watcher = IDLE_WATCHERS.filter_first_supported();
+    let idle_watcher = watchers::IDLE.filter_first_supported();
     if let Some(mut watcher) = idle_watcher {
         let thread_client = Arc::clone(&client);
         let idle_handler = thread::spawn(move || watcher.watch(&thread_client));
@@ -137,7 +85,7 @@ fn main() -> Result<(), BoxedError> {
         warn!("No supported idle handler is found");
     }
 
-    let window_watcher = ACTIVE_WINDOW_WATCHERS.filter_first_supported();
+    let window_watcher = watchers::ACTIVE_WINDOW.filter_first_supported();
     if let Some(mut watcher) = window_watcher {
         let thread_client = Arc::clone(&client);
         let active_window_handler = thread::spawn(move || watcher.watch(&thread_client));

src/watchers.rs

@@ -0,0 +1,58 @@
+mod kwin_window;
+mod wl_bindings;
+mod wl_connection;
+mod wl_foreign_toplevel;
+mod wl_kwin_idle;
+mod x11_connection;
+mod x11_screensaver_idle;
+mod x11_window;
+
+use crate::{report_client::ReportClient, BoxedError};
+use std::sync::Arc;
+
+pub trait Watcher: Send {
+    fn new() -> Result<Self, BoxedError>
+    where
+        Self: Sized;
+    fn watch(&mut self, client: &Arc<ReportClient>);
+}
+
+type BoxedWatcher = Box<dyn Watcher>;
+
+type WatcherConstructor = (&'static str, fn() -> Result<BoxedWatcher, BoxedError>);
+type WatcherConstructors = [WatcherConstructor];
+
+pub trait ConstructorFilter {
+    fn filter_first_supported(&self) -> Option<BoxedWatcher>;
+}
+
+impl ConstructorFilter for WatcherConstructors {
+    fn filter_first_supported(&self) -> Option<BoxedWatcher> {
+        self.iter().find_map(|(name, watcher)| match watcher() {
+            Ok(watcher) => Some(watcher),
+            Err(e) => {
+                info!("{name} cannot run: {e}");
+                None
+            }
+        })
+    }
+}
+
+macro_rules! watcher {
+    ($watcher_struct:ty) => {
+        (stringify!($watcher_struct), || {
+            Ok(Box::new(<$watcher_struct>::new()?))
+        })
+    };
+}
+
+pub const IDLE: &WatcherConstructors = &[
+    watcher!(wl_kwin_idle::IdleWatcher),
+    watcher!(x11_screensaver_idle::IdleWatcher),
+];
+
+pub const ACTIVE_WINDOW: &WatcherConstructors = &[
+    watcher!(wl_foreign_toplevel::WindowWatcher),
+    watcher!(kwin_window::WindowWatcher),
+    watcher!(x11_window::WindowWatcher),
+];

src/watchers/kwin_window.rs

@@ -1,12 +1,10 @@
-use crate::Watcher;
-
 /*
  * This uses a hack with KWin scripts in order to receive the active window.
  * For the moment of writing, KWin doesn't implement the appropriate protocols to get a top level window.
  * Inspired by https://github.com/k0kubun/xremap/
  */
-use super::report_client::ReportClient;
-use super::BoxedError;
+use super::{BoxedError, Watcher};
+use crate::report_client::ReportClient;
 use std::env::temp_dir;
 use std::path::Path;
 use std::sync::{mpsc::channel, Arc, Mutex};

src/watchers/wl_bindings.rs

@@ -14,11 +14,11 @@ pub mod idle {
 
     pub mod __interfaces {
         use wayland_client::protocol::__interfaces::*;
-        wayland_scanner::generate_interfaces!("src/wl-protocols/idle.xml");
+        wayland_scanner::generate_interfaces!("src/watchers/wl-protocols/idle.xml");
     }
     use self::__interfaces::*;
 
-    wayland_scanner::generate_client_code!("src/wl-protocols/idle.xml");
+    wayland_scanner::generate_client_code!("src/watchers/wl-protocols/idle.xml");
 }
 
 pub mod wlr_foreign_toplevel {
@@ -33,9 +33,9 @@ pub mod wlr_foreign_toplevel {
 
     pub mod __interfaces {
         use wayland_client::protocol::__interfaces::*;
-        wayland_scanner::generate_interfaces!("src/wl-protocols/wlr-foreign-toplevel-management-unstable-v1.xml");
+        wayland_scanner::generate_interfaces!("src/watchers/wl-protocols/wlr-foreign-toplevel-management-unstable-v1.xml");
     }
     use self::__interfaces::*;
 
-    wayland_scanner::generate_client_code!("src/wl-protocols/wlr-foreign-toplevel-management-unstable-v1.xml");
+    wayland_scanner::generate_client_code!("src/watchers/wl-protocols/wlr-foreign-toplevel-management-unstable-v1.xml");
 }

src/watchers/wl_foreign_toplevel.rs

@@ -1,22 +1,19 @@
-use std::collections::HashMap;
-use std::{sync::Arc, thread};
-
-use crate::{wl_connection::subscribe_state, Watcher};
-
-use super::report_client::ReportClient;
-use super::wl_bindings;
+use super::wl_bindings::wlr_foreign_toplevel::zwlr_foreign_toplevel_handle_v1::{
+    Event as HandleEvent, State as HandleState, ZwlrForeignToplevelHandleV1,
+};
+use super::wl_bindings::wlr_foreign_toplevel::zwlr_foreign_toplevel_manager_v1::{
+    Event as ManagerEvent, ZwlrForeignToplevelManagerV1, EVT_TOPLEVEL_OPCODE,
+};
 use super::wl_connection::WlEventConnection;
 use super::BoxedError;
+use super::{wl_connection::subscribe_state, Watcher};
+use crate::report_client::ReportClient;
+use std::collections::HashMap;
+use std::{sync::Arc, thread};
 use wayland_client::{
     event_created_child, globals::GlobalListContents, protocol::wl_registry, Connection, Dispatch,
     Proxy, QueueHandle,
 };
-use wl_bindings::wlr_foreign_toplevel::zwlr_foreign_toplevel_handle_v1::{
-    Event as HandleEvent, State as HandleState, ZwlrForeignToplevelHandleV1,
-};
-use wl_bindings::wlr_foreign_toplevel::zwlr_foreign_toplevel_manager_v1::{
-    Event as ManagerEvent, ZwlrForeignToplevelManagerV1, EVT_TOPLEVEL_OPCODE,
-};
 
 struct WindowData {
     app_id: String,

src/watchers/wl_kwin_idle.rs

@@ -1,9 +1,8 @@
-use crate::Watcher;
-
-use super::report_client::ReportClient;
 use super::wl_bindings;
 use super::wl_connection::{subscribe_state, WlEventConnection};
 use super::BoxedError;
+use super::Watcher;
+use crate::report_client::ReportClient;
 use chrono::{DateTime, Duration, Utc};
 use std::{sync::Arc, thread};
 use wayland_client::{

src/watchers/x11_screensaver_idle.rs

@@ -1,9 +1,9 @@
 use std::{sync::Arc, thread};
 
+use super::{x11_connection::X11Connection, BoxedError, Watcher};
+use crate::report_client::ReportClient;
 use chrono::{Duration, Utc};
 
-use crate::{report_client::ReportClient, x11_connection::X11Connection, BoxedError, Watcher};
-
 pub struct IdleWatcher {
     connection: X11Connection,
 }

src/watchers/x11_window.rs

@@ -1,7 +1,7 @@
+use super::{x11_connection::X11Connection, BoxedError, Watcher};
+use crate::report_client::ReportClient;
 use std::thread;
 
-use crate::{report_client::ReportClient, x11_connection::X11Connection, BoxedError, Watcher};
-
 pub struct WindowWatcher {
     connection: X11Connection,
     last_title: String,