Started on general window layout

src-tauri/src/main.rs

@@ -3,11 +3,36 @@
     windows_subsystem = "windows"
 )]
 
+#[cfg(target_os = "macos")]
+#[macro_use]
+extern crate objc;
+
 mod commands;
 mod runtime;
+mod window_ext;
+
+use tauri::{Manager, WindowEvent};
+use window_ext::WindowExt;
 
 fn main() {
     tauri::Builder::default()
+        .setup(|app| {
+            let win = app.get_window("main").unwrap();
+            win.position_traffic_lights();
+            Ok(())
+        })
+        .on_window_event(|e| {
+            let apply_offset = || {
+                let win = e.window();
+                win.position_traffic_lights();
+            };
+
+            match e.event() {
+                WindowEvent::Resized(..) => apply_offset(),
+                WindowEvent::ThemeChanged(..) => apply_offset(),
+                _ => {}
+            }
+        })
         .invoke_handler(tauri::generate_handler![
             commands::send_request,
             commands::greet