Vendor the command set the menu and shell depend on

2026-09-19 23:57:12 -04:00
parent 9501f2bb4d
commit c5434026a8
179 changed files with 12414 additions and 54 deletions
@@ -0,0 +1,86 @@
+#!/bin/bash
+
+# blob:summary=Adjust output volume and show the Blob OSD
+# blob:args=<raise|lower|mute-toggle|+N|-N>
+# blob:examples=blob audio output volume raise | blob audio output volume lower | blob audio output volume mute-toggle | blob audio output volume +1
+
+action="${1:-}"
+
+if [[ -z $action ]]; then
+  echo "Usage: blob-audio-volume <raise|lower|mute-toggle|+N|-N>"
+  exit 1
+fi
+
+# Resolve through any DSP sink to the physical one, so the keys always move real
+# loudness and the processing always sees full-scale input. Shared with the audio
+# panel and the output switcher.
+sink="$(blob-audio-sink)"
+if [[ -z $sink ]]; then
+  echo "Could not resolve an audio sink to control." >&2
+  exit 1
+fi
+
+# pactl reports the same percentage scale wpctl does (both are the raw volume
+# over PA_VOLUME_NORM), so the OSD reads identically either way.
+volume_percent() {
+  pactl get-sink-volume "$sink" 2>/dev/null |
+    awk 'NR == 1 {
+      for (i = 1; i <= NF; i++)
+        if ($i ~ /%$/) {sub("%", "", $i); print $i; exit}
+    }'
+}
+
+volume_muted() {
+  [[ $(pactl get-sink-mute "$sink" 2>/dev/null) == *yes ]]
+}
+
+case "$action" in
+  raise) action="+5" ;;
+  lower) action="-5" ;;
+esac
+
+if [[ $action == "mute-toggle" ]]; then
+  runtime_dir="${XDG_RUNTIME_DIR:-/tmp}"
+  debounce_file="$runtime_dir/blob-audio-volume-mute-toggle.last"
+  now=$(date +%s%3N)
+  last=0
+  [[ -r $debounce_file ]] && read -r last <"$debounce_file" || true
+  if ((now - last < 250)); then
+    exit 0
+  fi
+  printf '%s\n' "$now" >"$debounce_file"
+
+  pactl set-sink-mute "$sink" toggle
+elif [[ $action =~ ^([+-])([0-9]+)$ ]]; then
+  direction="${BASH_REMATCH[1]}"
+  step="${BASH_REMATCH[2]}"
+
+  current="$(volume_percent)"
+  if [[ -z $current ]]; then
+    echo "Could not read volume for $sink." >&2
+    exit 1
+  fi
+
+  if [[ $direction == "+" ]]; then
+    next=$((current + step))
+    ((next <= 100)) || next=100
+  else
+    next=$((current - step))
+    ((next >= 0)) || next=0
+  fi
+
+  pactl set-sink-mute "$sink" 0
+  pactl set-sink-volume "$sink" "${next}%"
+else
+  echo "Unknown volume action: $action"
+  exit 1
+fi
+
+percent=$(volume_percent)
+if volume_muted || ((${percent:-0} == 0)); then
+  icon="volume-muted"
+else
+  icon="volume-high"
+fi
+
+blob-osd -i "$icon" -p "${percent:-0}"