idle inhibitor: show blocking inhibitors in tooltip, poll only while hovered

modules/IdleInhibitor.qml

@@ -1,23 +1,47 @@
 import QtQuick
+import Quickshell
 import Quickshell.Io
 import "." as M
 
 M.BarIcon {
     id: root
     color: root.active ? (parent?.accentColor ?? M.Theme.base05) : M.Theme.base04
-    tooltip: "Idle inhibition: " + (root.active ? "active" : "inactive")
+    tooltip: {
+        const parts = ["Idle inhibition: " + (root.active ? "active" : "inactive")];
+        if (root._inhibitors)
+            parts.push(root._inhibitors);
+        return parts.join("\n");
+    }
 
     property bool active: false
+    property string _inhibitors: ""
 
     icon: root.active ? "\uF06E" : "\uF070"
 
-    // The inhibitor process — stays running while active
     Process {
         id: inhibitor
         command: ["systemd-inhibit", "--what=idle", "--who=nova-shell", "--why=user", "sleep", "infinity"]
         running: root.active
     }
 
+    // Poll current inhibitors
+    Process {
+        id: listProc
+        running: true
+        command: ["sh", "-c", "systemd-inhibit --list 2>/dev/null | grep -i idle | awk '{print $NF}' | sort -u | tr '\\n' ', ' | sed 's/, $//'"]
+        stdout: StdioCollector {
+            onStreamFinished: root._inhibitors = text.trim() ? "Blocked by: " + text.trim() : ""
+        }
+    }
+
+    Timer {
+        interval: 5000
+        running: root._hovered
+        repeat: true
+        triggeredOnStart: true
+        onTriggered: listProc.running = true
+    }
+
     MouseArea {
         anchors.fill: parent
         cursorShape: Qt.PointingHandCursor