env/xdg-config-dir/herbstluftwm/herbstpanel.sh

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#!/bin/sh
# env
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# Written in 2019-2020 by Lucas
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# CC0 1.0 Universal/Public domain - No rights reserved
#
# To the extent possible under law, the author(s) have dedicated all
# copyright and related and neighboring rights to this software to the
# public domain worldwide. This software is distributed without any
# warranty. You should have received a copy of the CC0 Public Domain
# Dedication along with this software. If not, see
# <http://creativecommons.org/publicdomain/zero/1.0/>.
if [ -f ~/.config/herbstluftwm/theme ]; then
. ~/.config/herbstluftwm/theme
fi
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bar_geometry()
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{
herbstclient monitor_rect "$m" | {
read -r mx my mw mh
printf "%ux%u+%u+%u\n" "$mw" "$hlwm_font_height" "$mx" "$my"
}
}
show_tags()
{
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mon=$1
herbstclient tag_status "$mon" | tr "\t" "\n" | {
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focused=$(herbstclient attr tags.focus.name)
s=
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while IFS= read -r line; do
[ -n "$line" ] || continue
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tag=${line#[.:+#%!-]}
case $line in
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!*) [ "$tag" != "$focused" ] && s=$s" $line"
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;;
esac
done
printf "%%{l}%s%%{F%s}%s%%{F-}\n" \
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"$focused" "$hlwm_color9" "$s"
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}
}
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tags_status()
{
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mon=$1
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show_tags "$mon"
herbstclient -i "tag_(changed|flags)" | while read -r discard; do
show_tags "$mon"
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done
}
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if [ $# -ne 1 ]; then
printf "Usage: %s monitor\n" "${0##*/}" >&2
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exit 1
fi
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geometry=$(bar_geometry "$m")
left=
center=
right=
{
tags_status "$m" &
spoon -t &
} | while IFS= read line; do
case $line in
"%{l}"*)
left=$line
;;
"%{c}"*)
center=$line
;;
"%{r}"*)
right=$line
;;
esac
printf "%s%s%s\n" "$left" "$center" "$right"
done | lemonbar -b -g "$geometry" \
-B "$hlwm_background" -F "$hlwm_foreground" -f "$hlwm_font" &
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herbstclient -w reload
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kill 0