1 files changed, 68 insertions, 0 deletions
diff --git a/picom-inverter b/picom-inverter
new file mode 100755
index 000000000000..618d4130bd1e
--- /dev/null
+++ b/picom-inverter
@@ -0,0 +1,68 @@
+#!/bin/sh
+
+# === Verify `picom --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 picom)" ]; then
+    echo "picom running without dbus interface"
+    #killall picom & # Causes all windows to flicker away and come back ugly.
+    #picom --dbus & # Causes all windows to flicker away and come back beautiful
+  else
+    echo "picom 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.${dpy}"
+interface="com.github.chjj.compton"
+picom_dbus="dbus-send --print-reply --dest="${service}" / "${interface}"."
+type_win='uint32'
+type_enum='uint16'
+
+# === Color Inversion ===
+
+# Get window ID of window to invert
+if [ -z "$1" -o "$1" = "selected" ]; then
+  window=$(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
+  ${picom_dbus}opts_set string:track_focus boolean:true &
+  window=$(${picom_dbus}find_win string:focused | $SED -n 's/^[[:space:]]*'${type_win}'[[:space:]]*\([[:digit:]]*\).*/\1/p') # Query picom for the active window
+elif echo "$1" | grep -Eiq '^([[:digit:]][[:digit:]]*|0x[[:xdigit:]][[:xdigit:]]*)$'; then
+  window="$1" # Accept user-specified window-id if the format is correct
+else
+  echo "$0" "[ selected | focused | window-id ]"
+fi
+
+# Color invert the selected or focused window
+if [ -n "$window" ]; then
+  invert_status="$(${picom_dbus}win_get "${type_win}:${window}" string:invert_color | $SED -n 's/^[[:space:]]*boolean[[:space:]]*\([[:alpha:]]*\).*/\1/p')"
+  if [ "$invert_status" = true ]; then
+    invert=0 # Set the window to have normal color
+  else
+    invert=1 # Set the window to have inverted color
+  fi
+  ${picom_dbus}win_set "${type_win}:${window}" string:invert_color_force "${type_enum}:${invert}" &
+else
+  echo "Cannot find $1 window."
+  exit 1;
+fi
+exit 0;
+