shells: a settings page that restarts the shells, with a notification

Settings > Desktop > Shells lists every directory holding a shell.qml,
running or stopped by `qs list --all`, with Restart (Start when it is not
running) per row and a Restart all. Every button runs reload.sh through
Quickshell.execDetached, which leaves the script outside the desktop
shell's process, so restarting desktop from its own settings window
works: the window closes and the new process carries on.

restart.sh wraps reload.sh and sends one notification naming the shells
that came back, or a critical one naming those that did not. Back means
qs lists an instance on the shell's config path under a pid it did not
have before, within 5s; the old instance can linger in the list for a
moment after qs kill. It checks the process, not the config, so a shell
that starts with a broken component still counts as back.

The rows reuse the ai module's AiRow rather than a copy of it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/desktop/modules/shells/ShellsPage.qml b/desktop/modules/shells/ShellsPage.qml
new file mode 100644
index 0000000..abbb2b1
--- /dev/null
+++ b/desktop/modules/shells/ShellsPage.qml
@@ -0,0 +1,51 @@
+// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2 as
+// published by the Free Software Foundation.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+import QtQuick
+import "../.."
+import "../ai"
+
+// One row per shell, Restart when it runs and Start when it does not, both
+// through reload.sh. The desktop row restarts the process drawing this page.
+Column {
+    id: page
+
+    required property var shells
+
+    spacing: 8
+
+    Component.onCompleted: page.shells.refresh()
+
+    AiRow {
+        width: page.width
+        title: "All shells"
+        detail: "Restarts every one, this window included"
+        on: true
+        action: "Restart all"
+        onTriggered: page.shells.restart("")
+    }
+
+    Repeater {
+        model: page.shells.shells
+
+        AiRow {
+            required property var modelData
+            objectName: "shell:" + modelData.name
+            width: page.width
+            title: modelData.name
+            on: modelData.running
+            detail: (modelData.running ? "Running" : "Stopped")
+                + (modelData.name === "desktop" ? " · hosts this window" : "")
+            action: modelData.running ? "Restart" : "Start"
+            onTriggered: page.shells.restart(modelData.name)
+        }
+    }
+}