refactor: simplify implementation

src/gui/connected_tab/mod.rs

@@ -42,7 +42,7 @@ pub struct ConnectedTab {
     /// A notice sender to notify the auto attach tab to refresh
     pub auto_attach_notice: Cell<Option<nwg::NoticeSender>>,
 
-    pub connected_devices: RefCell<Vec<usbipd::UsbDevice>>,
+    connected_devices: RefCell<Vec<usbipd::UsbDevice>>,
 
     #[nwg_layout(flex_direction: FlexDirection::Row)]
     connected_tab_layout: nwg::FlexboxLayout,

src/gui/usbipd_gui.rs

@@ -9,7 +9,7 @@ use native_windows_gui as nwg;
 use super::auto_attach_tab::AutoAttachTab;
 use super::connected_tab::ConnectedTab;
 use super::persisted_tab::PersistedTab;
-use crate::usbipd::UsbDevice;
+use crate::usbipd::{list_devices, UsbDevice};
 use crate::{
     auto_attach::AutoAttacher,
     win_utils::{self, DeviceNotification},
@@ -26,7 +26,7 @@ pub(super) trait GuiTab {
 #[derive(Default, NwgUi)]
 pub struct UsbipdGui {
     device_notification: Cell<DeviceNotification>,
-    menu_tray_event_handler: RefCell<Option<nwg::EventHandler>>,
+    menu_tray_event_handler: Cell<Option<nwg::EventHandler>>,
 
     #[nwg_resource]
     embed: nwg::EmbedResource,
@@ -77,15 +77,15 @@ pub struct UsbipdGui {
 
     // Tray icon
     #[nwg_control(icon: Some(&data.app_icon), tip: Some("WSL USB Manager"))]
-    #[nwg_events(OnContextMenu: [UsbipdGui::show_menu_tray(RC_SELF)], MousePressLeftUp: [UsbipdGui::show(RC_SELF)])]
+    #[nwg_events(OnContextMenu: [UsbipdGui::show_menu_tray], MousePressLeftUp: [UsbipdGui::show])]
     tray: nwg::TrayNotification,
 
     // File menu
     #[nwg_control(parent: window, text: "File", popup: false)]
     menu_file: nwg::Menu,
 
     #[nwg_control(parent: menu_file, text: "Refresh")]
-    #[nwg_events(OnMenuItemSelected: [UsbipdGui::refresh(RC_SELF)])]
+    #[nwg_events(OnMenuItemSelected: [UsbipdGui::refresh])]
     menu_file_refresh: nwg::MenuItem,
 
     #[nwg_control(parent: menu_file)]
@@ -137,13 +137,13 @@ impl UsbipdGui {
         self.window.set_visible(false);
     }
 
-    fn show(self: &Rc<UsbipdGui>) {
+    fn show(&self) {
         self.window.set_visible(true);
     }
 
     fn show_menu_tray(self: &Rc<UsbipdGui>) {
-        if let Some(handler) = self.menu_tray_event_handler.borrow().as_ref() {
-            nwg::unbind_event_handler(handler);
+        if let Some(handler) = self.menu_tray_event_handler.take() {
+            nwg::unbind_event_handler(&handler);
         }
 
         let mut menu_tray = nwg::Menu::default();
@@ -153,15 +153,12 @@ impl UsbipdGui {
             .build(&mut menu_tray)
             .unwrap();
 
-        let devices = self
-            .connected_tab_content
-            .connected_devices
-            .borrow()
-            .iter()
-            .cloned()
+        let devices = list_devices()
+            .into_iter()
+            .filter(|d| d.is_connected())
             .collect::<Vec<_>>();
 
-        let mut menu_items: Vec<(nwg::MenuItem, Rc<UsbDevice>)> = Vec::with_capacity(devices.len());
+        let mut menu_items: Vec<(nwg::MenuItem, UsbDevice)> = Vec::with_capacity(devices.len());
         for device in devices {
             let device_name = device.description.as_deref();
             let vid_pid = device.vid_pid();
@@ -176,7 +173,7 @@ impl UsbipdGui {
                     .new_menu_item(menu_tray.handle, &description, device.is_attached())
                     .unwrap();
 
-                menu_items.push((menu_item, Rc::new(device.clone())));
+                menu_items.push((menu_item, device));
             }
         }
 
@@ -185,15 +182,15 @@ impl UsbipdGui {
         self.new_menu_separator(menu_tray.handle).unwrap();
         let exit_item = self.new_menu_item(menu_tray.handle, "Exit", false).unwrap();
 
-        let rc_self_weak = Rc::downgrade(&self);
-        *self.menu_tray_event_handler.borrow_mut() = Some(nwg::full_bind_event_handler(
-            &self.window.handle,
-            move |evt, _evt_data, handle| {
-                if let Some(rc_self) = rc_self_weak.upgrade() {
-                    match evt {
-                        nwg::Event::OnMenuItemSelected => {
+        let rc_self_weak = Rc::downgrade(self);
+        self.menu_tray_event_handler
+            .replace(Some(nwg::full_bind_event_handler(
+                &self.window.handle,
+                move |evt, _evt_data, handle| {
+                    if let Some(rc_self) = rc_self_weak.upgrade() {
+                        if evt == nwg::Event::OnMenuItemSelected {
                             if handle == open_item.handle {
-                                UsbipdGui::show(&rc_self);
+                                UsbipdGui::show(rc_self.as_ref());
                             } else if handle == exit_item.handle {
                                 UsbipdGui::exit();
                             } else {
@@ -208,18 +205,16 @@ impl UsbipdGui {
                                 }
                             }
                         }
-                        _ => (),
                     }
-                }
-            },
-        ));
+                },
+            )));
 
         let (x, y) = nwg::GlobalCursor::position();
         menu_tray.popup(x, y);
     }
 
     fn new_menu_item(
-        self: &Rc<UsbipdGui>,
+        &self,
         parent: nwg::ControlHandle,
         text: &str,
         check: bool,
@@ -234,7 +229,7 @@ impl UsbipdGui {
     }
 
     fn new_menu_separator(
-        self: &Rc<UsbipdGui>,
+        &self,
         parent: nwg::ControlHandle,
     ) -> Result<nwg::MenuSeparator, nwg::NwgError> {
         let mut sep = nwg::MenuSeparator::default();
@@ -244,7 +239,7 @@ impl UsbipdGui {
             .map(|_| sep)
     }
 
-    fn refresh(self: &Rc<UsbipdGui>) {
+    fn refresh(&self) {
         self.connected_tab_content.refresh();
         self.persisted_tab_content.refresh();
         self.auto_attach_tab_content.refresh();

src/usbipd.rs

@@ -47,7 +47,7 @@ impl Display for UsbipState {
 }
 
 /// A struct representing a USB device as returned by `usbipd`.
-#[derive(Debug, Deserialize, Clone)]
+#[derive(Debug, Deserialize)]
 pub struct UsbDevice {
     #[serde(rename = "BusId")]
     pub bus_id: Option<String>,