Add: LeftWM workspace widget

- Show tags in workspace "0"
- Callback to switch tag on click

src/widgets/leftwmdata.rs

@@ -1,17 +1,30 @@
 use crate::TopBar;
-use slint::{ComponentHandle, Timer, TimerMode, SharedString};
+use serde::Deserialize;
+use slint::{ComponentHandle, SharedString, Timer, TimerMode, VecModel};
 use std::process::Command;
 use std::time::Duration;
-use serde::Deserialize;
 
-// Minimal JSON structure 
+// Minimal JSON structures extracted from leftwm-state -q
+#[derive(Deserialize)]
+struct Tag {
+    index: usize,
+    mine: bool,
+    busy: bool,
+}
+
+#[derive(Deserialize)]
+struct Workspace {
+    tags: Vec<Tag>,
+}
+
 #[derive(Deserialize)]
 struct LeftState {
     window_title: String,
+    workspaces: Vec<Workspace>,
 }
 
-// Run leftwm-state and return JSON output (or empty string)
-fn get_leftwm_state() -> String {
+// Helpers
+fn run_leftwm_state() -> String {
     Command::new("leftwm-state")
         .arg("-q")
         .output()
@@ -19,31 +32,64 @@ fn get_leftwm_state() -> String {
         .unwrap_or_default()
 }
 
-// Parse only the window title
-fn parse_window_title(json: &str) -> String {
-    serde_json::from_str::<LeftState>(json)
-        .map(|v| v.window_title)
-        .unwrap_or_default()
+// Pick icon based on tag state
+fn icon_for_tag(tag: &Tag) -> &'static str {
+    if tag.mine {
+        ""
+    } else if tag.busy {
+        ""
+    } else {
+        ""
+    }
 }
 
-// Main updater loop
+// Main polling loop
 fn start_leftwm_updater(ui: &TopBar) {
     let weak = ui.as_weak();
 
     let timer = Box::leak(Box::new(Timer::default()));
-
-    // Poll every ~300 ms (fast enough for responsiveness)
     timer.start(TimerMode::Repeated, Duration::from_millis(300), move || {
-        if let Some(ui) = weak.upgrade() {
-            let state = get_leftwm_state();
-            let title = parse_window_title(&state);
-            // Send to UI
-            ui.set_current_window_title(SharedString::from(title));
-        }
+        let Some(ui) = weak.upgrade() else { return };
+
+        // Run leftwm-state -q once
+        let json = run_leftwm_state();
+
+        // Parse JSON
+        let parsed: LeftState = match serde_json::from_str(&json) {
+            Ok(v) => v,
+            Err(_) => return,
+        };
+
+        // Update window title
+        ui.set_current_window_title(SharedString::from(parsed.window_title));
+
+        // Extract current workspace (always index 0)
+        let Some(ws) = parsed.workspaces.get(0) else { return };
+
+        // Build vector of icons
+        let icons: Vec<SharedString> = ws
+            .tags
+            .iter()
+            .map(|t| SharedString::from(icon_for_tag(t)))
+            .collect();
+
+        // Push array to Slint as VecModel
+        let model = std::rc::Rc::new(VecModel::from(icons));
+        ui.set_tag_icons(model.into());
     });
 }
 
-// Public entry
+// Public entry point
 pub fn install(ui: &TopBar) {
+    // Install the polling loop
     start_leftwm_updater(ui);
+
+    // Tag switching callback
+    ui.on_go_to_tag(|i| {
+        // Command: `leftwm-command SendWorkspaceToTag workspace tag_number`  
+        // Assuming workspace 0 (first monitor)
+        let _ = Command::new("leftwm-command")
+            .arg(format!("SendWorkspaceToTag 0 {i}"))
+            .spawn();
+    });
 }

ui/square-icon-widget.slint

@@ -2,6 +2,7 @@ export component SquareIconWidget {
     // Basic parameters shared by all square icon widgets
     in property <int> bar_height;
     in property <string> icon_text;
+    in property <int> icon_font_size;
     in property <string> tooltip_text;
 
     // Colors
@@ -34,6 +35,7 @@ export component SquareIconWidget {
             Text {
                 text: icon_text;    // The icon
                 color: icon_color;
+                font-size: icon_font_size *1px;
                 vertical-alignment: center;
                 horizontal-alignment: center;
             }

ui/topbar.slint

@@ -12,6 +12,9 @@ export component TopBar inherits Window {
 
     // Right side
     in property<string> current_window_title;
+    in property<int> tag_icon_font_size: bar_height;
+    in property <[string]> tag_icons;
+    callback go_to_tag(int);
 
     // Time widget
     in-out property <string> time_text;
@@ -114,7 +117,7 @@ export component TopBar inherits Window {
             // Left side
             Rectangle {
                 width: parent.width/3;
-                //background: #46adbb79;
+                background: #46adbb79;
                 HorizontalLayout {
                     alignment: start; // Left-align
                     padding-left: 4px;
@@ -133,11 +136,21 @@ export component TopBar inherits Window {
             // Middle
             Rectangle {
                 background: #5d8b3c79;
+                width: parent.width/3;
+                HorizontalLayout {
+                    alignment: center; // Right-align
+                    for ico[i] in root.tag_icons: SquareIconWidget {
+                        icon_text: ico;
+                        bar_height: root.bar_height;
+                        icon_font_size: root.tag_icon_font_size;
+                        square_btn_callback => root.go_to_tag(i);
+                    }
+                }
             }  
             
             // Right side
             Rectangle {
-                //background: #c2779a7a;
+                background: #c2779a7a;
                 width: parent.width/3;
 
                 HorizontalLayout {