control panel: switch audio devices through wpctl, flag unplugged ones

pactl set-default-sink/source is a no-op under PipeWire - WirePlumber owns
the default and only honours wpctl, which takes node ids from a different
namespace than pactl's indices. The panel now resolves ids from wpctl status
and verifies the default actually moved instead of reporting success blindly.

A device whose ports are all 'not available' cannot become the default at all;
those are greyed and labelled (unplugged) rather than silently failing.

Speaker and mic glyphs on the home sliders 14px -> 19px.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Cn3dHfbgNYdbZvzb1b3GQt

.config/scripts/control-panel.py

@@ -74,11 +74,13 @@ window.panel { background-color: transparent; }
     border: none;
     border-radius: 10px;
     color: #e9eefb;
-    font-size: 14px;
+    font-size: 19px;
-    padding: 10px 12px;
+    padding: 9px 12px;
 }
 .rowbtn:hover  { background-color: rgba(146, 185, 234, 0.17); }
-.rowbtn.chosen { background-color: rgba(146, 185, 234, 0.22); color: #cfe0f7; }
+.rowbtn.chosen  { background-color: rgba(146, 185, 234, 0.22); color: #cfe0f7; }
+.rowbtn.unavail { color: #6f6889; }
+.rowbtn.unavail label { color: #6f6889; }
 .pw {
     background-image: none;
     background-color: rgba(38, 32, 58, 0.78);
@@ -157,19 +159,49 @@ def mic_get():
     return (round(float(m.group(1)) * 100) if m else 0, "MUTED" in out)
 
 
+def wp_ids(kind):
+    """Map description -> WirePlumber node id for the Audio section.
+
+    pactl indices are a different namespace from PipeWire node ids, and
+    `wpctl set-default` only accepts the latter."""
+    out = sh("wpctl status")
+    audio = out.split("Audio", 1)[-1].split("Video", 1)[0]
+    ids, grab = {}, False
+    for line in audio.splitlines():
+        if re.search(r"\b(Sinks|Sources):", line):
+            grab = kind.rstrip("s").capitalize() + "s:" in line
+            continue
+        if re.search(r"\b(Devices|Filters|Streams|Sink endpoints|Source endpoints):", line):
+            grab = False
+            continue
+        if grab:
+            m = re.match(r"[^0-9*]*(\*?)\s*(\d+)\.\s+(.+?)(?:\s+\[vol.*)?$", line)
+            if m:
+                ids[m.group(3).strip()] = int(m.group(2))
+    return ids
+
+
 def _pactl_devices(kind):
-    """kind: 'sinks' or 'sources'. Returns [(name, description, is_default)]."""
+    """[(name, description, is_default, available, node_id)] for sinks/sources."""
     default = sh(f"pactl get-default-{'sink' if kind == 'sinks' else 'source'}")
-    out, name, desc, items = sh(f"pactl list {kind}"), None, None, []
+    node_ids = wp_ids(kind)
-    for line in out.splitlines():
+    out, items = sh(f"pactl list {kind}"), []
-        line = line.strip()
+    name = desc = None
-        if line.startswith("Name:"):
+    ports, has_ports = [], False
-            name = line.split(":", 1)[1].strip()
+    blocks = re.split(r"\n(?=\w)", out)
-        elif line.startswith("Description:"):
+    for block in blocks:
-            desc = line.split(":", 1)[1].strip()
+        m = re.search(r"^\s*Name:\s*(\S+)", block, re.M)
-            if name and not name.startswith("alsa_output.platform-snd_dummy"):
+        d = re.search(r"^\s*Description:\s*(.+)$", block, re.M)
-                items.append((name, desc, name == default))
+        if not m or not d:
-            name = None
+            continue
+        name, desc = m.group(1), d.group(1).strip()
+        port_lines = re.findall(r"^\s+\S+:.*\((?:type:.*?)?priority:.*?\)\s*$",
+                                block, re.M)
+        has_ports = bool(port_lines)
+        # a device whose every port is unplugged cannot become the default
+        available = (not has_ports) or any("not available" not in p for p in port_lines)
+        items.append((name, desc, name == default, available,
+                      node_ids.get(desc)))
     return items
 
 
@@ -478,7 +510,7 @@ class Panel(Gtk.Window):
         lbl.set_margin_bottom(2)
         return lbl
 
-    def device_row(self, name, desc, active, kind):
+    def device_row(self, name, desc, active, kind, available=True, node_id=None):
         b = Gtk.Button()
         b.get_style_context().add_class("rowbtn")
         if active:
@@ -491,7 +523,11 @@ class Panel(Gtk.Window):
         t.set_ellipsize(3)
         h.pack_start(t, True, True, 0)
         b.add(h)
-        b.connect("clicked", lambda *_: self.set_device(kind, name))
+        if not available:
+            b.get_style_context().add_class("unavail")
+            t.set_text(f"{desc}   (unplugged)")
+        b.connect("clicked",
+                  lambda *_: self.set_device(kind, name, node_id, available))
         return b
 
     def app_row(self, idx, app, vol, muted, show_label=True, icon=None):
@@ -527,13 +563,28 @@ class Panel(Gtk.Window):
         card.add(row)
         return card
 
-    def set_device(self, kind, name):
+    def set_device(self, kind, name, node_id=None, available=True):
-        sh(f"pactl set-default-{kind} {name}")
+        label = "Output" if kind == "sink" else "Input"
-        if kind == "sink":
+        if not available:
-            # follow existing streams over to the new output
+            notify("Audio", f"{label} unavailable - nothing plugged into that jack")
-            for idx, *_ in sink_inputs():
+            return
-                sh(f"pactl move-sink-input {idx} {name}")
+        before = sh(f"pactl get-default-{kind}")
-        notify("Audio", f"{'Output' if kind == 'sink' else 'Input'} switched")
+        # pactl set-default-* is a no-op under PipeWire; WirePlumber owns the
+        # default and only honours wpctl with a node id
+        if node_id is not None:
+            sh(f"wpctl set-default {node_id}")
+        else:
+            sh(f"pactl set-default-{kind} {name}")
+        GLib.usleep(250000)
+        after = sh(f"pactl get-default-{kind}")
+        if after == before and before != name:
+            notify("Audio", f"{label} did not switch",
+                   "WirePlumber refused it, usually an unplugged port")
+        else:
+            if kind == "sink":
+                for idx, *_ in sink_inputs():   # move streams to the new output
+                    sh(f"pactl move-sink-input {idx} {name}")
+            notify("Audio", f"{label} switched")
         self.fill_audio()
         self.refresh()
 
@@ -554,17 +605,17 @@ class Panel(Gtk.Window):
         self.audio_box.add(self.section("Output"))
         card = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
         card.get_style_context().add_class("card")
-        for name, desc, active in _pactl_devices("sinks"):
+        for name, desc, active, avail, nid in _pactl_devices("sinks"):
-            card.add(self.device_row(name, desc, active, "sink"))
+            card.add(self.device_row(name, desc, active, "sink", avail, nid))
         self.audio_box.add(card)
 
         self.audio_box.add(self.section("Input"))
         card = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
         card.get_style_context().add_class("card")
-        for name, desc, active in _pactl_devices("sources"):
+        for name, desc, active, avail, nid in _pactl_devices("sources"):
             if ".monitor" in name:
                 continue
-            card.add(self.device_row(name, desc, active, "source"))
+            card.add(self.device_row(name, desc, active, "source", avail, nid))
         self.audio_box.add(card)
 
         apps = sink_inputs()