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38 lines
919 B
Bash
Executable file
38 lines
919 B
Bash
Executable file
#!/usr/bin/env zsh
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PANEL_FIFO="$1"
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PREFIX="$2"
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ICONS=($(echo "$3" | tr ";" "\n"))
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exec 5>"$PANEL_FIFO"
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main() {
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local cmd=( $(amixer -M get Master) )
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local playback_level="${cmd[-2][2,-3]}"
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local icon=""
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if [[ "${cmd[-1]}" == "[off]" ]]; then
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icon="${ICONS[1]}"
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else
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if [[ "$playback_level" -eq 0 ]]; then
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icon="${ICONS[2]}"
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elif [[ "$playback_level" -lt 30 ]]; then
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icon="${ICONS[3]}"
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elif [[ "$playback_level" -lt 60 ]]; then
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icon="${ICONS[4]}"
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elif [[ "$playback_level" -lt 100 ]]; then
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icon="${ICONS[5]}"
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else
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icon="${ICONS[6]}"
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fi
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fi
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REPLY="$icon $playback_level%"
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}
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{print init; stdbuf -oL alsactl monitor pulse} | while read line; do
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case ${line} in
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*Master\ Playback*|init ) main; print "$PREFIX $REPLY" >&5 ;;
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* ) continue ;;
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esac
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done
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