dotfiles/.bin/scratchpad

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#!/bin/sh
# read resolution from xrandr: "1920x1080 60.03*+"
RES=$(xrandr | grep "*+" | awk '{print $1}' | head -1)
# parse xrandr output
RESH=${RES%x*}
RESV=${RES#*x}
# calculate pixel gap that should surround the window
GAP=$(( RESH / 12 ))
# Calculate the horzontal/vertical dimensions of the window
H=$(( RESH - 2 * GAP ))
V=$(( RESV - 2 * GAP ))
COLUMNS=176
ROWS=37
# set the quirk in .config/spectrwm/spectrwm.conf
# quirk[scratchpad] = FLOAT + ANYWHERE + FOCUSPREV
# get scratchpad window id
WID=$(wmctrl -x -l scratchpad | fgrep '.scratchpad' | cut -d" " -f1)
if [ -z "$WID" ]
then
# start terminal (sterm is st.suckless.org)
sterm -c scratchpad -g ${COLUMNS}x${ROWS}+${GAP}+${GAP} &
# XXX we cannot resize with wmctrl here, because the window is not
# mapped yet. Adding a sleep here and resize then is visually
# unpleasant. Therefore st is started with hardcoded dimensions
# and resized when hidden.
else
# check if window is iconified or on another WS (or both)
if xwininfo -id $WID | fgrep -q IsUnMapped
then
# move window to current workspace
[ -z $_SWM_WS ] \
&& wmctrl -i -r $WID -t $(xprop -root _NET_CURRENT_DESKTOP | cut -d'=' -f2) \
|| wmctrl -i -r $WID -t $_SWM_WS
# remove hidden flag
wmctrl -i -r $WID -b remove,hidden
# activate (give focus)
wmctrl -i -a $WID
else
# window is visible => hide
wmctrl -i -r $WID -b add,hidden
# correct size while hidden
wmctrl -i -r $WID -e 0,$GAP,$GAP,$H,$V
# move it beyond the WS limit to completely hide it from the bar
# XXX could also be skip_pager / skip_taskbar?
wmctrl -i -r $WID -t 11
fi
fi