add volume bar

.config/qtile/autostart.sh

@@ -17,3 +17,6 @@ nitrogen --restore
 
 # Start network manager applet (systray)
 nm-applet &
+
+# Start volume bar
+~/.config/xob/volume.sh

.config/xob/base.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+CONFIG="styles.cfg"
+
+([ "$1" = "-r" ] || [ "$1" = "--reload" ] && echo "$CONFIG" | entr -r "$0" "$2") || (python "$WATCHER" | xob -s "$1")

.config/xob/pulse-volume-watcher.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+
+import sys
+from pulsectl import Pulse, PulseLoopStop
+
+with Pulse() as pulse:
+  def callback(ev):
+    if ev.index == sink_index: raise PulseLoopStop
+  def current_status(sink):
+    return round(sink.volume.value_flat * 100), sink.mute == 1
+  try:
+    sinks = {s.index:s for s in pulse.sink_list()}
+    if len(sys.argv) > 1:
+      # Sink index from command line argument if provided
+      sink_index = int(sys.argv[1])
+      if not sink_index in sinks:
+        raise KeyError(f"Sink index {sink_index} not found in list of sinks.")
+    else:
+      # Automatic determination of default sink otherwise
+      default_sink_name = pulse.server_info().default_sink_name
+      try:
+        sink_index = next(index for index, sink in sinks.items()
+                          if sink.name == default_sink_name)
+      except StopIteration: raise StopIteration("No default sink was found.")
+
+    pulse.event_mask_set('sink')
+    pulse.event_callback_set(callback)
+    last_value, last_mute = current_status(sinks[sink_index])
+
+    while True:
+      pulse.event_listen()
+      sinks = {s.index:s for s in pulse.sink_list()}
+      value, mute = current_status(sinks[sink_index])
+      if value != last_value or mute != last_mute:
+        print(str(value) + ('!' if mute else ''))
+        last_value, last_mute = value, mute
+      sys.stdout.flush()
+
+  except Exception as e:
+    print(f"ERROR: {e}", file=sys.stderr)
+

.config/xob/styles.cfg

@@ -0,0 +1,39 @@
+volume = {
+    thickness = 20;
+    outline   = 2;
+    border    = 3;
+    padding   = 1;
+    orientation = "vertical";
+
+    x = {
+        relative = 0;
+        offset = 24;
+    }
+    y = {
+        relative = 0.5;
+        offset = 0;
+    }
+
+    color = {
+        normal = {
+            fg = "#49659C";
+            bg = "#272A34";
+            border = "#49659C";
+        };
+        alt = {
+            fg = "#363D54";
+            bg = "#272A34";
+            border = "#49659C";
+        };
+        overflow = {
+            fg = "#900000";
+            bg = "#272A34";
+            border = "#933333";
+        };
+        altoverflow = {
+            fg = "#900000";
+            bg = "#272A34";
+            border = "#49659C";
+        };
+    };
+};

.config/xob/volume.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+WATCHER=pulse-volume-watcher.py ./base.sh $@