Indicate and jump to tmux panes waiting for attention

Show a bar indicator whenever tmux has flagged a window, the same state
that highlights the tab, and jump to it on click or with Super + Ctrl + J.
Tmux hooks push the state to the shell, so nothing polls while no pane is
waiting.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

shell/plugins/bar/indicators/TmuxAlert.qml

@@ -0,0 +1,63 @@
+import QtQuick
+import Quickshell
+import Quickshell.Io
+import qs.Ui
+
+BarIndicator {
+  id: root
+
+  property int waitingCount: 0
+  property string tooltip: ""
+
+  active: waitingCount > 0
+  activeText: "󰆍"
+  inactiveText: "󰆍"
+  activeTooltipText: tooltip
+  inactiveTooltipText: "No terminal is waiting"
+
+  function refresh() {
+    if (!statusProc.running) statusProc.running = true
+  }
+
+  function update(raw) {
+    var data = extractData(raw)
+    waitingCount = Number(data.count || 0)
+    tooltip = String(data.tooltip || "")
+  }
+
+  Component.onCompleted: refresh()
+
+  // Alerts can also disappear without a hook, such as when the window or its
+  // session is killed while still flagged.
+  Timer {
+    interval: 5000
+    running: root.active
+    repeat: true
+    onTriggered: root.refresh()
+  }
+
+  Connections {
+    target: root.indicatorHost
+    ignoreUnknownSignals: true
+    function onRefreshRequested() { root.refresh() }
+  }
+
+  Process {
+    id: statusProc
+    command: ["omarchy-tmux-alert", "show", "--json"]
+    stdout: StdioCollector {
+      waitForEnd: true
+      onStreamFinished: root.update(text)
+    }
+    onExited: function(exitCode) {
+      if (exitCode !== 0) {
+        root.waitingCount = 0
+        root.tooltip = ""
+      }
+    }
+  }
+
+  onPressed: function() {
+    Quickshell.execDetached(["omarchy-tmux-alert", "focus"])
+  }
+}

shell/plugins/bar/widgets/Indicators.manifest.json

@@ -36,6 +36,11 @@
             "label": "Reminder",
             "description": "Queued reminder status"
           },
+          {
+            "value": "TmuxAlert",
+            "label": "Tmux alert",
+            "description": "Tmux windows waiting for attention"
+          },
           {
             "value": "NightLight",
             "label": "Night light",

shell/plugins/bar/widgets/Indicators.qml

@@ -8,7 +8,7 @@ BarWidget {
   id: root
   moduleName: "omarchy.indicators"
 
-  readonly property var defaultIndicatorEntries: [ "Dnd", "Reminder", "NightLight", "StayAwake", "ScreenRecording", "Dictation" ]
+  readonly property var defaultIndicatorEntries: [ "Dnd", "Reminder", "TmuxAlert", "NightLight", "StayAwake", "ScreenRecording", "Dictation" ]
   readonly property var indicatorEntries: indicatorEntriesFromSettings(settings)
   property var activeIndicatorIds: []
   property var indicatorActiveStates: ({})