fix: track focused window in NiriIpc singleton to fix window title always hidden

modules/NiriIpc.qml

@@ -11,6 +11,28 @@ QtObject {
     signal windowFocusChanged(var windowId)
     signal windowOpenedOrChanged(var window)
 
+    property string focusedTitle: ""
+    property string focusedAppId: ""
+
+    property var _focusedProc: Process {
+        running: true
+        command: ["niri", "msg", "--json", "focused-window"]
+        stdout: StdioCollector {
+            onStreamFinished: {
+                try {
+                    const w = JSON.parse(text);
+                    if (w) {
+                        root.focusedTitle = w.title || "";
+                        root.focusedAppId = w.app_id || "";
+                    } else {
+                        root.focusedTitle = "";
+                        root.focusedAppId = "";
+                    }
+                } catch (e) {}
+            }
+        }
+    }
+
     property var _eventStream: Process {
         running: true
         command: ["niri", "msg", "--json", "event-stream"]
@@ -23,10 +45,22 @@ QtObject {
                         root.workspacesChanged(ev.WorkspacesChanged.workspaces);
                     else if (ev.WorkspaceActivated !== undefined)
                         root.workspaceActivated(ev.WorkspaceActivated.id, ev.WorkspaceActivated.focused);
-                    else if (ev.WindowFocusChanged !== undefined)
+                    else if (ev.WindowFocusChanged !== undefined) {
                         root.windowFocusChanged(ev.WindowFocusChanged.id);
-                    else if (ev.WindowOpenedOrChanged !== undefined)
+                        if (ev.WindowFocusChanged.id !== null)
+                            root._focusedProc.running = true;
+                        else {
+                            root.focusedTitle = "";
+                            root.focusedAppId = "";
+                        }
+                    } else if (ev.WindowOpenedOrChanged !== undefined) {
                         root.windowOpenedOrChanged(ev.WindowOpenedOrChanged.window);
+                        const w = ev.WindowOpenedOrChanged.window;
+                        if (w.is_focused) {
+                            root.focusedTitle = w.title || "";
+                            root.focusedAppId = w.app_id || "";
+                        }
+                    }
                 } catch (e) {}
             }
         }

modules/WindowTitle.qml

@@ -1,63 +1,23 @@
 import QtQuick
 import QtQuick.Effects
 import Quickshell
-import Quickshell.Io
 import Quickshell.Widgets
 import "." as M
 
 M.BarSection {
     id: root
     spacing: M.Theme.moduleSpacing
-    visible: M.Modules.windowTitle.enable && root._title !== ""
+    visible: M.Modules.windowTitle.enable && M.NiriIpc.focusedTitle !== ""
 
-    tooltip: root._appId ? root._appId + "\n" + root._title : root._title
+    tooltip: M.NiriIpc.focusedAppId ? M.NiriIpc.focusedAppId + "\n" + M.NiriIpc.focusedTitle : M.NiriIpc.focusedTitle
 
-    property string _title: ""
-    property string _appId: ""
     readonly property string _iconSource: {
-        if (!root._appId)
+        if (!M.NiriIpc.focusedAppId)
             return "";
-        const entry = DesktopEntries.heuristicLookup(root._appId);
+        const entry = DesktopEntries.heuristicLookup(M.NiriIpc.focusedAppId);
         return entry ? Quickshell.iconPath(entry.icon) : "";
     }
 
-    // Initial state — niri event-stream doesn't replay current focus
-    Process {
-        id: initProc
-        running: true
-        command: ["niri", "msg", "--json", "focused-window"]
-        stdout: StdioCollector {
-            onStreamFinished: {
-                try {
-                    const w = JSON.parse(text);
-                    if (w) {
-                        root._title = w.title || "";
-                        root._appId = w.app_id || "";
-                    }
-                } catch (e) {}
-            }
-        }
-    }
-
-    // Live updates via shared NiriIpc singleton
-    Connections {
-        target: M.NiriIpc
-        function onWindowFocusChanged(windowId) {
-            if (windowId !== null)
-                initProc.running = true;
-            else {
-                root._title = "";
-                root._appId = "";
-            }
-        }
-        function onWindowOpenedOrChanged(window) {
-            if (window.is_focused) {
-                root._title = window.title || "";
-                root._appId = window.app_id || "";
-            }
-        }
-    }
-
     IconImage {
         visible: root._iconSource !== ""
         source: root._iconSource
@@ -71,7 +31,7 @@ M.BarSection {
     }
 
     M.BarLabel {
-        label: root._title
+        label: M.NiriIpc.focusedTitle
         color: root.accentColor
         elide: Text.ElideRight
         anchors.verticalCenter: parent.verticalCenter