Merge pull request #164 from quequotion/patch-1

Window Color Inverter

dbus-examples/inverter.sh

@@ -0,0 +1,66 @@
+#!/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 -w "$1")" ]; then
+  window="$1" # Accept user-specified window-id if compton managed
+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;