step 5: live Hyprland workspace buttons via EventStream

src/bar/workspaces.rs

@@ -1 +1,50 @@
+use futures_lite::StreamExt;
+use gtk4::prelude::*;
+use hyprland::{
+    data::{Workspace, Workspaces},
+    event_listener::{Event, EventStream},
+    prelude::*,
+    shared::WorkspaceId,
+};
+use relm4::ComponentSender;
 
+use crate::AppInput;
+
+pub fn spawn_watcher(sender: ComponentSender<crate::App>) {
+    relm4::spawn(async move {
+        if let Ok(ws) = Workspaces::get_async().await {
+            sender.input(AppInput::WorkspaceList(ws.to_vec()));
+        }
+        if let Ok(active) = Workspace::get_active_async().await {
+            sender.input(AppInput::ActiveWorkspace(active.id));
+        }
+
+        let mut stream = EventStream::new();
+        while let Some(Ok(event)) = stream.next().await {
+            match event {
+                Event::WorkspaceChanged(data) => {
+                    sender.input(AppInput::ActiveWorkspace(data.id));
+                }
+                Event::WorkspaceAdded(_) | Event::WorkspaceDeleted(_) => {
+                    if let Ok(ws) = Workspaces::get_async().await {
+                        sender.input(AppInput::WorkspaceList(ws.to_vec()));
+                    }
+                }
+                _ => {}
+            }
+        }
+    });
+}
+
+pub fn make_button(id: WorkspaceId, name: &str, active: WorkspaceId) -> gtk4::Button {
+    let btn = gtk4::Button::with_label(name);
+    btn.add_css_class("workspace-btn");
+    if id == active {
+        btn.add_css_class("active");
+    }
+    btn.connect_clicked(move |_| {
+        use hyprland::dispatch::{Dispatch, DispatchType, WorkspaceIdentifierWithSpecial};
+        let _ = Dispatch::call(DispatchType::Workspace(WorkspaceIdentifierWithSpecial::Id(id)));
+    });
+    btn
+}