picom/dbus-examples/inverter.sh

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#!/bin/sh
# === Verify `compton --dbus` status ===
if [ -z "`dbus-send --session --dest=org.freedesktop.DBus --type=method_call --print-reply /org/freedesktop/DBus org.freedesktop.DBus.ListNames | grep compton`" ]; then
echo "compton DBus interface unavailable"
if [ -n "`pgrep compton`" ]; then
echo "compton running without dbus interface"
#killall compton & # Causes all windows to flicker away and come back ugly.
#compton --dbus & # Causes all windows to flicker away and come back beautiful
else
echo "compton not running"
fi
exit 1;
fi
# === Setup sed ===
if [ -z "$SED" ]; then
SED="sed"
command -v gsed > /dev/null && SED="gsed"
fi
# === Get connection parameters ===
dpy=$(echo -n "$DISPLAY" | tr -c '[:alnum:]' _)
if [ -z "$dpy" ]; then
echo "Cannot find display."
exit 1;
fi
service="com.github.chjj.compton.${dpy}"
interface="com.github.chjj.compton"
compton_dbus="dbus-send --print-reply --dest="${service}" / "${interface}"."
type_win='uint32'
type_enum='uint16'
# === Color Inversion ===
# Get window ID of window to invert
if [ -z "$1" ] || [ "$1" = "selected" ]; then
window=$(xwininfo -frame | sed -n 's/^xwininfo: Window id: \(0x[[:xdigit:]][[:xdigit:]]*\).*/\1/p') # Select window by mouse
elif [ "$1" = "focused" ]; then
# Ensure we are tracking focus
${compton_dbus}opts_set string:track_focus boolean:true &
window=$(${compton_dbus}find_win string:focused | $SED -n 's/^[[:space:]]*'${type_win}'[[:space:]]*\([[:digit:]]*\).*/\1/p') # Query compton for the active window
elif [ -n "$(${compton_dbus}list_win | grep "$1")" ]; then
window="$1"
else
echo "$0" "[ selected | focused | window-id ]"
fi
# Color invert the selected or focused window
if [ -n "$window" ]; then
if [ "$(${compton_dbus}win_get "${type_win}:${window}" string:invert_color_force | $SED -n 's/^[[:space:]]*'${type_enum}'[[:space:]]*\([[:digit:]]*\).*/\1/p')" -eq 0 ]; then
invert=1 # Set the window to have inverted color
else
invert=0 # Set the window to have normal color
fi
${compton_dbus}win_set "${type_win}:${window}" string:invert_color_force "${type_enum}:${invert}" &
else
echo "Cannot find $1 window."
exit 1;
fi
exit 0;