feat: add tauri_nspanel

feat: add window.set_float_panel

feat: make main window always draw over other fullscreen apps

apps/desktop/src-tauri/Cargo.toml

@@ -46,6 +46,7 @@ tokio = { version = "1.38.0", features = [
 tauri-plugin-websocket = { git = "https://github.com/tauri-apps/plugins-workspace", branch = "v1" }
 tauri-plugin-window-state = { git = "https://github.com/tauri-apps/plugins-workspace", branch = "v1" }
 tauri-plugin-single-instance = { git = "https://github.com/tauri-apps/plugins-workspace", branch = "v1" }
+tauri-nspanel = { git = "https://github.com/ahkohd/tauri-nspanel", branch = "v1" }
 anyhow = "1.0.86"
 
 # macos dependencies

apps/desktop/src-tauri/src/main.rs

@@ -31,8 +31,9 @@ pub struct Pinned(AtomicBool);
 
 #[cfg(target_os = "macos")]
 fn apply_macos_specifics(window: &Window) {
-  window.set_visisble_on_all_workspaces(true);
   window.set_transparent_titlebar(true, true);
+
+  window.set_float_panel();
 }
 
 fn main() {
@@ -41,13 +42,21 @@ fn main() {
   flags.remove(StateFlags::VISIBLE);
 
   let window_state_plugin = tauri_plugin_window_state::Builder::default().with_state_flags(flags);
-  let app = tauri::Builder::default()
+
+  let mut app = tauri::Builder::default()
     // TODO: this should work on windows
     .plugin(window_state_plugin.build())
     .plugin(tauri_plugin_websocket::init())
     .plugin(tauri_plugin_single_instance::init(|app, argv, cwd| {
       println!("{}, {argv:?}, {cwd}", app.package_info().name);
-    }))
+    }));
+
+  #[cfg(target_os = "macos")]
+  {
+    app = app.plugin(tauri_nspanel::init());
+  }
+
+  app = app
     .manage(Pinned(AtomicBool::new(false)))
     .setup(|app| {
       let window = app.get_window(MAIN_WINDOW_NAME).unwrap();
@@ -95,24 +104,25 @@ fn main() {
       open_devtools,
       close_settings,
       open_settings
-    ])
+    ]);
+
+  app
     .build(tauri::generate_context!())
-    .expect("An error occured while running the app!");
-
-  app.run(|app, event| match event {
-    tauri::RunEvent::WindowEvent {
-      label,
-      event: win_event,
-      ..
-    } => match win_event {
-      // NOTE: prevent destroying the window
-      tauri::WindowEvent::CloseRequested { api, .. } => {
-        let win = app.get_window(label.as_str()).unwrap();
-        win.hide().unwrap();
-        api.prevent_close();
-      }
+    .expect("An error occured while running the app!")
+    .run(|app, event| match event {
+      tauri::RunEvent::WindowEvent {
+        label,
+        event: win_event,
+        ..
+      } => match win_event {
+        // NOTE: prevent destroying the window
+        tauri::WindowEvent::CloseRequested { api, .. } => {
+          let win = app.get_window(label.as_str()).unwrap();
+          win.hide().unwrap();
+          api.prevent_close();
+        }
+        _ => {}
+      },
       _ => {}
-    },
-    _ => {}
-  })
+    });
 }

apps/desktop/src-tauri/src/window_custom.rs

@@ -1,40 +1,19 @@
 #[cfg(target_os = "macos")]
 pub mod macos {
-  use cocoa::{
-    appkit::{
-      NSMainMenuWindowLevel, NSWindow, NSWindowButton, NSWindowCollectionBehavior,
-      NSWindowStyleMask, NSWindowTitleVisibility,
-    },
-    base::id,
-    foundation::NSInteger,
+  use cocoa::appkit::{
+    NSMainMenuWindowLevel, NSWindow, NSWindowButton, NSWindowCollectionBehavior, NSWindowStyleMask,
+    NSWindowTitleVisibility,
   };
   use objc::{msg_send, runtime::YES};
   use tauri::{Runtime, Window};
+  use tauri_nspanel::WindowExt;
 
   pub trait WindowExtMacos {
     fn set_transparent_titlebar(&self, title_transparent: bool, remove_toolbar: bool);
-    fn set_visisble_on_all_workspaces(&self, enabled: bool);
+    fn set_float_panel(&self);
   }
 
   impl<R: Runtime> WindowExtMacos for Window<R> {
-    fn set_visisble_on_all_workspaces(&self, enabled: bool) {
-      const HIGHER_LEVEL_THAN_LEAGUE: NSInteger = 1001;
-      unsafe {
-        let ns_win = self.ns_window().unwrap() as id;
-
-        if enabled {
-          ns_win.setLevel_(HIGHER_LEVEL_THAN_LEAGUE);
-          ns_win.setCollectionBehavior_(
-            NSWindowCollectionBehavior::NSWindowCollectionBehaviorCanJoinAllSpaces,
-          );
-        } else {
-          ns_win.setLevel_(((NSMainMenuWindowLevel - 1) as u64).try_into().unwrap());
-          ns_win
-            .setCollectionBehavior_(NSWindowCollectionBehavior::NSWindowCollectionBehaviorDefault);
-        }
-      }
-    }
-
     fn set_transparent_titlebar(&self, title_transparent: bool, remove_tool_bar: bool) {
       unsafe {
         let id = self.ns_window().unwrap() as cocoa::base::id;
@@ -72,6 +51,23 @@ pub mod macos {
         });
       }
     }
+
+    fn set_float_panel(&self) {
+      let panel = self.to_panel().unwrap();
+
+      panel.set_level(NSMainMenuWindowLevel + 1);
+
+      #[allow(non_upper_case_globals)]
+      const NSWindowStyleMaskNonActivatingPanel: i32 = 1 << 7;
+
+      panel.set_style_mask(NSWindowStyleMaskNonActivatingPanel);
+
+      panel.set_collection_behaviour(
+        NSWindowCollectionBehavior::NSWindowCollectionBehaviorCanJoinAllSpaces
+          | NSWindowCollectionBehavior::NSWindowCollectionBehaviorStationary
+          | NSWindowCollectionBehavior::NSWindowCollectionBehaviorFullScreenAuxiliary,
+      );
+    }
   }
 }