refactor: consolidate niri event-stream into NiriIpc singleton

modules/NiriIpc.qml

@@ -0,0 +1,34 @@
+pragma Singleton
+
+import QtQuick
+import Quickshell.Io
+
+QtObject {
+    id: root
+
+    signal workspacesChanged(var workspaces)
+    signal workspaceActivated(int id, bool focused)
+    signal windowFocusChanged(var windowId)
+    signal windowOpenedOrChanged(var window)
+
+    property var _eventStream: Process {
+        running: true
+        command: ["niri", "msg", "--json", "event-stream"]
+        stdout: SplitParser {
+            splitMarker: "\n"
+            onRead: line => {
+                try {
+                    const ev = JSON.parse(line);
+                    if (ev.WorkspacesChanged !== undefined)
+                        root.workspacesChanged(ev.WorkspacesChanged.workspaces);
+                    else if (ev.WorkspaceActivated !== undefined)
+                        root.workspaceActivated(ev.WorkspaceActivated.id, ev.WorkspaceActivated.focused);
+                    else if (ev.WindowFocusChanged !== undefined)
+                        root.windowFocusChanged(ev.WindowFocusChanged.id);
+                    else if (ev.WindowOpenedOrChanged !== undefined)
+                        root.windowOpenedOrChanged(ev.WindowOpenedOrChanged.window);
+                } catch (e) {}
+            }
+        }
+    }
+}

modules/WindowTitle.qml

@@ -39,32 +39,21 @@ M.BarSection {
         }
     }
 
-    // Live updates via event stream
+    // Live updates via shared NiriIpc singleton
-    Process {
+    Connections {
-        id: eventStream
+        target: M.NiriIpc
-        running: true
+        function onWindowFocusChanged(windowId) {
-        command: ["niri", "msg", "--json", "event-stream"]
+            if (windowId !== null)
-        stdout: SplitParser {
-            splitMarker: "\n"
-            onRead: line => {
-                try {
-                    const ev = JSON.parse(line);
-                    if (ev.WindowFocusChanged !== undefined) {
-                        // WindowFocusChanged only gives id, re-query for full info
-                        if (ev.WindowFocusChanged.id !== null)
                 initProc.running = true;
             else {
                 root._title = "";
                 root._appId = "";
             }
-                    } else if (ev.WindowOpenedOrChanged !== undefined) {
-                        const w = ev.WindowOpenedOrChanged.window;
-                        if (w.is_focused) {
-                            root._title = w.title || "";
-                            root._appId = w.app_id || "";
         }
-                    }
+        function onWindowOpenedOrChanged(window) {
-                } catch (e) {}
+            if (window.is_focused) {
+                root._title = window.title || "";
+                root._appId = window.app_id || "";
             }
         }
     }

modules/Workspaces.qml

@@ -33,24 +33,15 @@ Row {
         }
     }
 
-    // Live updates
+    // Live updates via shared NiriIpc singleton
-    Process {
+    Connections {
-        id: eventStream
+        target: M.NiriIpc
-        running: true
+        function onWorkspacesChanged(workspaces) {
-        command: ["niri", "msg", "--json", "event-stream"]
+            root._allWorkspaces = workspaces.sort((a, b) => a.idx - b.idx);
-        stdout: SplitParser {
-            splitMarker: "\n"
-            onRead: line => {
-                try {
-                    const ev = JSON.parse(line);
-                    if (ev.WorkspacesChanged !== undefined) {
-                        root._allWorkspaces = ev.WorkspacesChanged.workspaces.sort((a, b) => a.idx - b.idx);
-                    } else if (ev.WorkspaceActivated !== undefined) {
-                        if (ev.WorkspaceActivated.focused)
-                            root._activeId = ev.WorkspaceActivated.id;
-                    }
-                } catch (e) {}
         }
+        function onWorkspaceActivated(id, focused) {
+            if (focused)
+                root._activeId = id;
         }
     }
 

modules/qmldir

@@ -32,6 +32,7 @@ Weather 1.0 Weather.qml
 PowerProfile 1.0 PowerProfile.qml
 IdleInhibitor 1.0 IdleInhibitor.qml
 Notifications 1.0 Notifications.qml
+singleton NiriIpc 1.0 NiriIpc.qml
 singleton ProcessList 1.0 ProcessList.qml
 singleton NotifService 1.0 NotifService.qml
 NotifItem 1.0 NotifItem.qml