feat(wm): allow valid attach_thread_input failures

This commit allows the Window.focus() fn to continue execution if
AttachThreadInput fails, as there are valid situations in which this
might fail, but the focusing of the window may/should still succeed.

fix #156

komorebi/src/window.rs

@@ -199,7 +199,19 @@ impl Window {
         // Attach komorebi thread to Window thread
         let (_, window_thread_id) = WindowsApi::window_thread_process_id(self.hwnd());
         let current_thread_id = WindowsApi::current_thread_id();
-        WindowsApi::attach_thread_input(current_thread_id, window_thread_id, true)?;
+
+        // This can be allowed to fail if a window doesn't have a message queue or if a journal record
+        // hook has been installed
+        // https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-attachthreadinput#remarks
+        match WindowsApi::attach_thread_input(current_thread_id, window_thread_id, true) {
+            Ok(()) => {}
+            Err(error) => {
+                tracing::error!(
+                    "could not attach to window thread input processing mechanism, but continuing execution of focus(): {}",
+                    error
+                );
+            }
+        };
 
         // Raise Window to foreground
         match WindowsApi::set_foreground_window(self.hwnd()) {

komorebi/src/window_manager_event.rs

@@ -28,56 +28,56 @@ pub enum WindowManagerEvent {
 impl Display for WindowManagerEvent {
     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
         match self {
-            WindowManagerEvent::Manage(window) => {
+            Self::Manage(window) => {
                 write!(f, "Manage (Window: {})", window)
             }
-            WindowManagerEvent::Unmanage(window) => {
+            Self::Unmanage(window) => {
                 write!(f, "Unmanage (Window: {})", window)
             }
-            WindowManagerEvent::Destroy(winevent, window) => {
+            Self::Destroy(winevent, window) => {
                 write!(f, "Destroy (WinEvent: {}, Window: {})", winevent, window)
             }
-            WindowManagerEvent::FocusChange(winevent, window) => {
+            Self::FocusChange(winevent, window) => {
                 write!(
                     f,
                     "FocusChange (WinEvent: {}, Window: {})",
                     winevent, window
                 )
             }
-            WindowManagerEvent::Hide(winevent, window) => {
+            Self::Hide(winevent, window) => {
                 write!(f, "Hide (WinEvent: {}, Window: {})", winevent, window)
             }
-            WindowManagerEvent::Minimize(winevent, window) => {
+            Self::Minimize(winevent, window) => {
                 write!(f, "Minimize (WinEvent: {}, Window: {})", winevent, window)
             }
-            WindowManagerEvent::Show(winevent, window) => {
+            Self::Show(winevent, window) => {
                 write!(f, "Show (WinEvent: {}, Window: {})", winevent, window)
             }
-            WindowManagerEvent::MoveResizeStart(winevent, window) => {
+            Self::MoveResizeStart(winevent, window) => {
                 write!(
                     f,
                     "MoveResizeStart (WinEvent: {}, Window: {})",
                     winevent, window
                 )
             }
-            WindowManagerEvent::MoveResizeEnd(winevent, window) => {
+            Self::MoveResizeEnd(winevent, window) => {
                 write!(
                     f,
                     "MoveResizeEnd (WinEvent: {}, Window: {})",
                     winevent, window
                 )
             }
-            WindowManagerEvent::MouseCapture(winevent, window) => {
+            Self::MouseCapture(winevent, window) => {
                 write!(
                     f,
                     "MouseCapture (WinEvent: {}, Window: {})",
                     winevent, window
                 )
             }
-            WindowManagerEvent::Raise(window) => {
+            Self::Raise(window) => {
                 write!(f, "Raise (Window: {})", window)
             }
-            WindowManagerEvent::MonitorPoll(winevent, window) => {
+            Self::MonitorPoll(winevent, window) => {
                 write!(
                     f,
                     "MonitorPoll (WinEvent: {}, Window: {})",
@@ -91,18 +91,18 @@ impl Display for WindowManagerEvent {
 impl WindowManagerEvent {
     pub const fn window(self) -> Window {
         match self {
-            WindowManagerEvent::Destroy(_, window)
+            Self::Destroy(_, window)
-            | WindowManagerEvent::FocusChange(_, window)
+            | Self::FocusChange(_, window)
-            | WindowManagerEvent::Hide(_, window)
+            | Self::Hide(_, window)
-            | WindowManagerEvent::Minimize(_, window)
+            | Self::Minimize(_, window)
-            | WindowManagerEvent::Show(_, window)
+            | Self::Show(_, window)
-            | WindowManagerEvent::MoveResizeStart(_, window)
+            | Self::MoveResizeStart(_, window)
-            | WindowManagerEvent::MoveResizeEnd(_, window)
+            | Self::MoveResizeEnd(_, window)
-            | WindowManagerEvent::MouseCapture(_, window)
+            | Self::MouseCapture(_, window)
-            | WindowManagerEvent::MonitorPoll(_, window)
+            | Self::MonitorPoll(_, window)
-            | WindowManagerEvent::Raise(window)
+            | Self::Raise(window)
-            | WindowManagerEvent::Manage(window)
+            | Self::Manage(window)
-            | WindowManagerEvent::Unmanage(window) => window,
+            | Self::Unmanage(window) => window,
         }
     }
 

komorebic/src/main.rs

@@ -680,7 +680,7 @@ pub fn send_message(bytes: &[u8]) -> Result<()> {
     let socket = socket.as_path();
 
     let mut stream = UnixStream::connect(&socket)?;
-    Ok(stream.write_all(&*bytes)?)
+    Ok(stream.write_all(bytes)?)
 }
 
 #[allow(clippy::too_many_lines)]
@@ -720,8 +720,9 @@ fn main() -> Result<()> {
             color_log.push("komorebi.log");
             let file = TailedFile::new(File::open(color_log)?);
             let locked = file.lock();
-            for line in locked.lines() {
+            #[allow(clippy::significant_drop_in_scrutinee)]
-                println!("{}", line?);
+            for line in locked.lines().flatten() {
+                println!("{}", line);
             }
         }
         SubCommand::Focus(arg) => {