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|
#!/usr/bin/env bash
quote() {
local q="$(printf '%q ' "$@")"
printf '%s' "${q% }"
}
hc_quoted="$(quote "${herbstclient_command[@]:-herbstclient}")"
hc() { "${herbstclient_command[@]:-herbstclient}" "$@" ;}
monitor=${1:-0}
geometry=( $(hc monitor_rect "$monitor") )
if [ -z "$geometry" ] ;then
echo "Invalid monitor $monitor"
exit 1
fi
# geometry has the format W H X Y
x=${geometry[0]}
y=${geometry[1]}
panel_width=${geometry[2]}
panel_height=21
font="Liberation Mono:size=9"
bgcolor=$(hc get frame_border_normal_color)
selbg=$(hc get window_border_active_color)
selfg='#101010'
####
# Try to find textwidth binary.
# In e.g. Ubuntu, this is named dzen2-textwidth.
if which xftwidth > /dev/null
then
textwidth=xftwidth
elif which textwidth > /dev/null
then
textwidth="textwidth";
else
echo "This script requires the textwidth tool of the dzen2 project."
exit 1
fi
####
# true if we are using the svn version of dzen2
# depending on version/distribution, this seems to have version strings like
# "dzen-" or "dzen-x.x.x-svn"
if dzen2 -v 2>&1 | head -n 1 | grep -q '^dzen-\([^,]*-svn\|\),'; then
dzen2_svn="true"
else
dzen2_svn=""
fi
if awk -Wv 2>/dev/null | head -1 | grep -q '^mawk'; then
# mawk needs "-W interactive" to line-buffer stdout correctly
# http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=593504
uniq_linebuffered() {
awk -W interactive '$0 != l { print ; l=$0 ; fflush(); }' "$@"
}
else
# other awk versions (e.g. gawk) issue a warning with "-W interactive", so
# we don't want to use it there.
uniq_linebuffered() {
awk '$0 != l { print ; l=$0 ; fflush(); }' "$@"
}
fi
{
### Event generator ###
# based on different input data (mpc, date, hlwm hooks, ...) this generates events, formed like this:
# <eventname>\t<data> [...]
# e.g.
# date ^fg(#efefef)18:33^fg(#909090), 2013-10-^fg(#efefef)29
#mpc idleloop player &
while true ; do
# "date" output is checked once a second, but an event is only
# generated if the output changed compared to the previous run.
date +$'date\t^fg(#909090)%F ^fg(#efefef)%H:%M'
sleep 1 || break
done > >(uniq_linebuffered) &
childpid=$!
hc --idle
kill $childpid
} 2> /dev/null | {
IFS=$'\t' read -ra tags <<< "$(hc tag_status $monitor)"
visible=true
date=""
windowtitle=""
while true ; do
### Output ###
# This part prints dzen data based on the _previous_ data handling run,
# and then waits for the next event to happen.
separator="^bg()^fg($selbg)|"
# draw tags
for i in "${tags[@]}" ; do
case ${i:0:1} in
'#')
echo -n "^bg($selbg)^fg($selfg)"
;;
'-')
echo -n "^bg()^fg(#9CA668)"
;;
'+')
echo -n "^bg(#9CA668)^fg(#141414)"
;;
'%')
echo -n "^bg()^fg($selbg)"
;;
':')
echo -n "^bg()^fg(#ffffff)"
;;
'!')
echo -n "^bg(#FF0675)^fg(#141414)"
;;
*)
echo -n "^bg()^fg(#ababab)"
;;
esac
if [ ! -z "$dzen2_svn" ] ; then
# clickable tags if using SVN dzen
echo -n "^ca(1,$hc_quoted focus_monitor \"$monitor\" && "
echo -n "$hc_quoted use \"${i:1}\") ${i:1} ^ca()"
else
# non-clickable tags if using older dzen
echo -n " ${i:1} "
fi
done
echo -n "$separator"
echo -n "^bg()^fg() ${windowtitle//^/^^}"
# small adjustments
right="$separator^bg() $date"
right_text_only=$(echo -n "$right" | sed 's.\^[^(]*([^)]*)..g')
# get width of right aligned text.. and add some space..
width=$($textwidth "$font" "$right_text_only ")
echo -n "^pa($(($panel_width - $width)))$right"
echo
### Data handling ###
# This part handles the events generated in the event loop, and sets
# internal variables based on them. The event and its arguments are
# read into the array cmd, then action is taken depending on the event
# name.
# "Special" events (quit_panel/togglehidepanel/reload) are also handled
# here.
# wait for next event
IFS=$'\t' read -ra cmd || break
# find out event origin
case "${cmd[0]}" in
tag*)
#echo "resetting tags" >&2
IFS=$'\t' read -ra tags <<< "$(hc tag_status $monitor)"
;;
date)
#echo "resetting date" >&2
date="${cmd[@]:1}"
;;
quit_panel)
exit
;;
togglehidepanel)
currentmonidx=$(hc list_monitors | sed -n '/\[FOCUS\]$/s/:.*//p')
if [ "${cmd[1]}" -ne "$monitor" ] ; then
continue
fi
if [ "${cmd[1]}" = "current" ] && [ "$currentmonidx" -ne "$monitor" ] ; then
continue
fi
echo "^togglehide()"
if $visible ; then
visible=false
hc pad $monitor 0
else
visible=true
hc pad $monitor $panel_height
fi
;;
reload)
exit
;;
focus_changed|window_title_changed)
windowtitle="${cmd[@]:2}"
;;
#player)
# ;;
esac
done
### dzen2 ###
# After the data is gathered and processed, the output of the previous block
# gets piped to dzen2.
} | dzen2 -w $panel_width -x $x -y $y -fn "$font" -h $panel_height \
-e "button3=;button4=exec:$hc_quoted use_index -1;button5=exec:$hc_quoted use_index +1" \
-ta l -bg "$bgcolor" -fg '#efefef'
|
