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|
#!/bin/bash
###########
# SETUP #
###########
hc() { "${herbstclient_command[@]:-herbstclient}" "$@" ;}
monitor=${1:-0}
geometry=( $(herbstclient monitor_rect "$monitor") )
if [ -z "$geometry" ] ;then
echo "Invalid monitor $monitor"
exit 1
fi
# geometry has the format W H X Y
xpos=${geometry[0]}
ypos=${geometry[1]}
width=${geometry[2]}
# grab standardised colours
source ~/.config/herbstluftwm/config_vars
# set alpha for background colours
alpha='#ff'
bg_normal=$(echo -n $alpha; echo "$bg_normal" | tr -d '#')
fg_normal=$(echo -n '#ff'; echo "$fg_normal" | tr -d '#')
bg_focus=$(echo -n $alpha; echo "$bg_focus" | tr -d '#')
fg_focus=$(echo -n '#ff'; echo "$fg_focus" | tr -d '#')
bg_urgent=$(echo -n '#ff'; echo "$bg_urgent" | tr -d '#')
fg_urgent=$(echo -n '#ff'; echo "$fg_urgent" | tr -d '#')
fg_grey=$(echo -n '#ff'; echo "$fg_grey" | tr -d '#')
hc pad $monitor $bheight
# global content variables
winlist=""
#################
# SUBROUTINES #
#################
# functions for retrieving and processing data
# upon events
update_taglist() {
echo -n "%{l}%{B${bg_normal} F${fg_normal} U${fg_normal}}"
hc tag_status | tr '\t' '\n' | sed \
-e '1d' \
-e '$d' \
-e 's/\(.*\)/\1 /' \
-e 's/:/ /' \
-e "s/[#+\-%]\(.*\)/%{B${bg_focus} F${fg_focus}} \1%{B${bg_normal} F${fg_normal}}/" \
-e "s/!\(.*\)/%{B${bg_urgent} F${fg_urgent}} \1%{B${bg_normal} F${fg_normal}}/" \
-e "s/\.\(.*\)/%{B${bg_normal} F${fg_grey}} \1%{B${bg_normal} F${fg_normal}}/" \
| tr -d '\n'
echo "%{F${bg_focus}}|%{F${fg_normal}}"
}
update_winlist() {
focus_id=$(hc get_attr clients.focus.winid)
if [[ "$focus_id" == "" ]]; then
return
fi
# grab current window list, limit to current desktop,
# clean up output, cut to length,add focused window
# formatting, and finally delete win ids and merge
# lines
for c in $(herbstclient layout | grep -Eo '0x[0-9a-f]*'); do
xwininfo -id $c | sed -n 2p | sed -e 's/"//' -e 's/"$//' -e 's/$/\t/' | cut -c -70 | sed \
-e 's/xwininfo: Window id: //' \
-e 's/$/.../' -e 's/\t\.\.\.$//' \
-e "s/${focus_id} \(.*\)/%{B${bg_focus} F${fg_focus}} \1 %{B${bg_normal} F${fg_normal}}/" \
-e 's/0x[a-f0-9]* \(.*\)/ \1 /' | tr -d '\n'
done
}
#######################
# OUTPUT CONTAINERS #
#######################
# all fields are put in separate elements
# tag list
fields[1]=$(update_taglist)
# window list
fields[2]=$(update_winlist)
# align right
fields[3]="%{r}"
# when
fields[4]=""
# banshee np
fields[5]=""
# conky stats
fields[6]=""
# date
fields[7]=""
# vertical separator and gap for tray
fields[8]="%{F${bg_focus}}| %{F${fg_normal}}"
######################
# EVENT GENERATORS #
######################
# loops for generating a line of information,
# with the first element in the line as a
# unique identifier for the event type
get_stat() {
{
conky -c ~/.config/herbstluftwm/panel/conky_stats
# suppress lines that do not differ from
# previous lines
} | awk '$0 != l { print ; l=$0 ; fflush(); }'
}
get_date() {
{
while true; do
date +$'date\t%a, %b %d, %H:%M:%S'
sleep 1
done
} | awk '$0 != l { print ; l=$0 ; fflush(); }'
}
get_when() {
{
while true; do
if [[ "$(when --future=1 | sed '1,2d')" == "" ]]; then
echo -e 'when\t0'
else
echo -e 'when\t1'
fi
sleep 10
done
} | awk '$0 != l { print ; l=$0 ; fflush(); }'
}
#######################
# EVENT MULTIPLEXER #
#######################
# the loops defined above are launched and
# their outputs multiplexed
{
get_stat &
child[1]=$!
get_date &
child[2]=$!
get_when &
child[3]=$!
hc --idle
for id in ${child[@]}; do
kill $id
done
} 2> /dev/null | {
##################
# EVENT PARSER #
##################
# those lines are then read, one by one,
# and the information contained used to
# generate the required fields
while true; do
# split our read lines into an array
# for easy parsing
IFS=$'\t' read -ra event || break
# determine event type and act
# accordingly
case "${event[0]}" in
date)
fields[7]="%{F${bg_focus}}|%{F${fg_normal} A:date:} ${event[@]:1} %{A}"
;;
stats)
fields[6]="%{F${bg_focus}}|%{F${fg_normal} A:stats:} ${event[@]:1} %{A}"
;;
when)
if [[ "${events[1]}" -eq 1 ]]; then
fields[4]="%{F${bg_focus}}|%{F${fg_normal} A:when:} * %{A}"
else
fields[4]=""
fi
;;
# hc events
focus_changed|window_title_changed)
fields[2]=$(update_winlist)
;;
tag_changed|tag_flags)
fields[1]=$(update_taglist)
fields[2]=$(update_winlist)
;;
*)
;;
esac
# i wish i could just print the entire array
# this easily, but that inserts spaces
#echo "${fields[@]}"
echo -n "${fields[1]}${fields[2]}${fields[3]}${fields[4]}"
echo "${fields[5]}${fields[6]}${fields[7]}${fields[8]}"
done
# pass the events into bar
} 2> /dev/null | bar -f $dfont -g${width}x${bheight}+${xpos}+${ypos} \
-B ${bg_normal} -F ${fg_normal} | \
{
#####################
# COMMAND HANDLER #
#####################
# finally, take the output from bar and execute commands
while read command; do
case "$command" in
date)
notify-send "$(cal)"
;;
stats)
urxvt -e htop
;;
when)
notify-send "$(when)"
;;
*)
;;
esac
done
}
|
