dotfiles/i3/monitors.sh
2018-08-18 22:26:28 +02:00

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#!/bin/bash
scriptdir="$(dirname "$0")"
source "$scriptdir/monitors/config"
[[ -n $builtin ]] || { echo "builtin empty"; exit 1; }
[[ -n $ext1 ]] || { echo "ext1 empty"; exit 1; }
[[ -n $ext2 ]] || { echo "ext2 empty"; exit 1; }
xq="$(xrandr --query)"
xlm="$(xrandr --listmonitors)"
card() { echo "$xq" | grep -qF "$1"; }
conn() { echo "$xq" | grep -qF "$1 connected"; }
actv() { echo "$xlm" | grep -qF "$1"; }
should_exist() {
for i in "$@"; do
card "$i" || { echo "$i not on video card, refusing to do anything"; exit 1; }
done
}
should_exist "$builtin" "$ext1" "$ext2"
trigger_change_and_exit() {
"$scriptdir/../polybar/launch.sh" & disown
"$scriptdir/background.sh"
exit
}
builtin_off() {
level=$(xbacklight -get)
if [[ $level -gt 0 ]]; then
echo $level >/tmp/.brightness
xbacklight -time 500 -fps 30 -set 0
fi
}
builtin_on() {
level=$(xbacklight -get)
if [[ $level -eq 0 ]]; then
wanted=$([[ -r /tmp/.brightness ]] && cat /tmp/.brightness || echo "50")
elif [[ $level -lt 10 ]]; then
wanted=10
fi
xbacklight -time 500 -fps 30 -set $wanted
}
single_screen() {
one="$1"
off1="$2"
off2="$3"
xrandr \
--output "$one" --auto --primary \
--output "$off1" --off \
--output "$off2" --off
builtin_on
notify-send -a 'Monitor layout toggler' -i display "Only $one connected" "Disabled all outputs except for $one."
trigger_change_and_exit
}
toggle_two_screens() {
one="$1"
two="$2"
off="$3"
if actv "$one" && actv "$two"; then
xrandr \
--output "$one" --off \
--output "$two" --auto --primary \
--output "$off" --off
builtin_off
elif ! actv "$one" && actv "$two"; then
xrandr \
--output "$one" --auto --primary \
--output "$two" --off \
--output "$off" --off
builtin_on
else
xrandr \
--output "$one" --auto --primary \
--output "$two" --auto --left-of "$builtin" \
--output "$off" --off
builtin_on
fi
trigger_change_and_exit
}
toggle_three_screens() {
one="$1"
two="$2"
three="$3"
if actv "$one" && actv "$two" && actv "$three"; then
xrandr \
--output "$one" --off \
--output "$two" --auto --primary \
--output "$three" --auto --left-of "$two"
builtin_off
elif ! actv "$one" && actv "$two" && actv "$three"; then
xrandr \
--output "$one" --auto --primary \
--output "$two" --off \
--output "$three" --auto --left-of "$one"
builtin_on
elif actv "$one" && ! actv "$two" && actv "$three"; then
xrandr \
--output "$one" --auto --primary \
--output "$two" --auto --left-of "$one" \
--output "$three" --off
builtin_on
elif actv "$one" && actv "$two" && ! actv "$three"; then
xrandr \
--output "$one" --auto --primary \
--output "$two" --off \
--output "$three" --off
builtin_on
elif actv "$one" && ! actv "$two" && ! actv "$three"; then
xrandr \
--output "$one" --off \
--output "$two" --auto --primary \
--output "$three" --off
builtin_off
elif ! actv "$one" && actv "$two" && ! actv "$three"; then
xrandr \
--output "$one" --off \
--output "$two" --off \
--output "$three" --auto --primary
builtin_off
else
xrandr \
--output "$one" --auto --primary \
--output "$two" --auto --left-of "$one" \
--output "$three" --auto --left-of "$two"
builtin_on
fi
trigger_change_and_exit
}
# Only builtin connected
if conn "$builtin" && ! conn "$ext1" && ! conn "$ext2"; then
single_screen "$builtin" "$ext1" "$ext2"
fi
# Only builtin and ext1 connected
if conn "$builtin" && conn "$ext1" && ! conn "$ext2"; then
toggle_two_screens "$builtin" "$ext1" "$ext2"
fi
# Only builtin and ext2 connected
if conn "$builtin" && ! conn "$ext1" && conn "$ext2"; then
toggle_two_screens "$builtin" "$ext2" "$ext1"
fi
# Builtin, ext1 and ext2 connected
if conn "$builtin" && conn "$ext1" && conn "$ext2"; then
toggle_three_screens "$builtin" "$ext1" "$ext2"
fi
# Other cases: something's wrong, try enabling all displays
xrandr \
--output "$builtin" --auto --primary \
--output "$ext1" --auto \
--output "$ext2" --auto
builtin_on