feat(launcher): add option to minimize window if focused

docs/modules/Launcher.md

@@ -19,6 +19,7 @@ Optionally displays a launchable set of favourites.
 | `show_icons`                | `boolean`                                   | `true`   | Whether to show app icons on the button.                                                                                 |
 | `icon_size`                 | `integer`                                   | `32`     | Size to render icon at (image icons only).                                                                               |
 | `reversed`                  | `boolean`                                   | `false`  | Whether to reverse the order of favorites/items                                                                          |
+| `minimize_focused`   | `boolean`  | `true`  | Whether to minimize a focused window when its icon is clicked. Only minimizes single windows.       |
 | `truncate.mode`             | `'start'` or `'middle'` or `'end'` or `off` | `end`    | The location of the ellipses and where to truncate text from. Applies to application names when `show_names` is enabled. |
 | `truncate.length`           | `integer`                                   | `null`   | The fixed width (in chars) of the widget. Leave blank to let GTK automatically handle.                                   |
 | `truncate.max_length`       | `integer`                                   | `null`   | The maximum number of characters before truncating. Leave blank to let GTK automatically handle.                         |

src/clients/wayland/mod.rs

@@ -76,6 +76,8 @@ pub enum Request {
     ToplevelInfoAll,
     #[cfg(feature = "launcher")]
     ToplevelFocus(usize),
+    #[cfg(feature = "launcher")]
+    ToplevelMinimize(usize),
 
     #[cfg(feature = "clipboard")]
     CopyToClipboard(ClipboardItem),
@@ -350,6 +352,19 @@ impl Environment {
 
                 send!(env.response_tx, Response::Ok);
             }
+            #[cfg(feature = "launcher")]
+            Msg(Request::ToplevelMinimize(id)) => {
+                let handle = env
+                    .handles
+                    .iter()
+                    .find(|handle| handle.info().map_or(false, |info| info.id == id));
+
+                if let Some(handle) = handle {
+                    handle.minimize();
+                }
+
+                send!(env.response_tx, Response::Ok);
+            }
             #[cfg(feature = "clipboard")]
             Msg(Request::CopyToClipboard(item)) => {
                 env.copy_to_clipboard(item);

src/clients/wayland/wlr_foreign_toplevel/handle.rs

@@ -33,6 +33,11 @@ impl ToplevelHandle {
         trace!("Activating handle");
         self.handle.activate(seat);
     }
+
+    pub fn minimize(&self) {
+        trace!("Minimizing handle");
+        self.handle.set_minimized();
+    }
 }
 
 #[derive(Debug, Default)]

src/clients/wayland/wlr_foreign_toplevel/mod.rs

@@ -36,6 +36,15 @@ impl Client {
         }
     }
 
+    /// Minimizes the toplevel with the provided ID.
+    #[cfg(feature = "launcher")]
+    pub fn toplevel_minimize(&self, handle_id: usize) {
+        match self.send_request(Request::ToplevelMinimize(handle_id)) {
+            Response::Ok => (),
+            _ => unreachable!(),
+        }
+    }
+
     /// Subscribes to events from toplevels.
     pub fn subscribe_toplevels(&self) -> broadcast::Receiver<ToplevelEvent> {
         self.toplevel_channel.0.subscribe()

src/modules/launcher/item.rs

@@ -193,24 +193,31 @@ impl ItemButton {
             button.add_class("focused");
         }
 
+        let menu_state = Rc::new(RwLock::new(MenuState {
+            num_windows: item.windows.len(),
+        }));
+
         {
             let app_id = item.app_id.clone();
             let tx = controller_tx.clone();
+            let menu_state = menu_state.clone();
             button.connect_clicked(move |button| {
                 // lazy check :| TODO: Improve this
                 let style_context = button.style_context();
                 if style_context.has_class("open") {
-                    try_send!(tx, ItemEvent::FocusItem(app_id.clone()));
+                    let menu_state = read_lock!(menu_state);
+
+                    if style_context.has_class("focused") && menu_state.num_windows == 1 {
+                        try_send!(tx, ItemEvent::MinimizeItem(app_id.clone()));
+                    } else {
+                        try_send!(tx, ItemEvent::FocusItem(app_id.clone()));
+                    }
                 } else {
                     try_send!(tx, ItemEvent::OpenItem(app_id.clone()));
                 }
             });
         }
 
-        let menu_state = Rc::new(RwLock::new(MenuState {
-            num_windows: item.windows.len(),
-        }));
-
         {
             let app_id = item.app_id.clone();
             let tx = tx.clone();

src/modules/launcher/mod.rs

@@ -56,6 +56,12 @@ pub struct LauncherModule {
     #[serde(default = "crate::config::default_false")]
     reversed: bool,
 
+    /// Whether to minimize a window if it is focused when clicked.
+    ///
+    /// **Default**: `true`
+    #[serde(default = "crate::config::default_true")]
+    minimize_focused: bool,
+
     // -- common --
     /// Truncate application names on the bar if they get too long.
     /// See [truncate options](module-level-options#truncate-mode).
@@ -111,6 +117,7 @@ pub enum ItemEvent {
     FocusItem(String),
     FocusWindow(usize),
     OpenItem(String),
+    MinimizeItem(String),
 }
 
 enum ItemOrWindow {
@@ -290,6 +297,7 @@ impl Module<gtk::Box> for LauncherModule {
         });
 
         // listen to ui events
+        let minimize_focused = self.minimize_focused;
         let wl = context.client::<wayland::Client>();
         spawn(async move {
             while let Some(event) = rx.recv().await {
@@ -318,8 +326,10 @@ impl Module<gtk::Box> for LauncherModule {
                 } else {
                     send_async!(tx, ModuleUpdateEvent::ClosePopup);
 
+                    let minimize_window = matches!(event, ItemEvent::MinimizeItem(_));
+
                     let id = match event {
-                        ItemEvent::FocusItem(app_id) => {
+                        ItemEvent::FocusItem(app_id) | ItemEvent::MinimizeItem(app_id) => {
                             lock!(items).get(&app_id).and_then(|item| {
                                 item.windows
                                     .iter()
@@ -338,7 +348,11 @@ impl Module<gtk::Box> for LauncherModule {
                             .find_map(|(_, item)| item.windows.get(&id))
                         {
                             debug!("Focusing window {id}: {}", window.name);
-                            wl.toplevel_focus(window.id);
+                            if minimize_window && minimize_focused {
+                                wl.toplevel_minimize(window.id);
+                            } else {
+                                wl.toplevel_focus(window.id);
+                            }
                         }
                     }
                 }