From 44f9b75352fedb5fe855eac406d0852bafdef958 Mon Sep 17 00:00:00 2001
From: quequotion <the_q123@hotmail.com>
Date: Sat, 4 Jan 2014 01:08:27 +0900
Subject: [PATCH 1/5] Window Color Inverter

Assign to a hotkey: toggle (focused) window color inversion.

Good accessibility enhancement.

Obviously, stripped right out of the examples.
---
 dbus-examples/inverter.sh | 51 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 dbus-examples/inverter.sh

diff --git a/dbus-examples/inverter.sh b/dbus-examples/inverter.sh
new file mode 100644
index 0000000..eb2df58
--- /dev/null
+++ b/dbus-examples/inverter.sh
@@ -0,0 +1,51 @@
+#!/bin/sh
+
+#TODO: Check compton running; Check dbus interface available
+
+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.${dpy}"
+interface="com.github.chjj.compton"
+object='/com/github/chjj/compton'
+type_win='uint32'
+type_enum='uint16'
+
+# === Color Inversion ===
+
+# Ensure we are tracking focus
+dbus-send --print-reply --dest="$service" "$object" "${interface}.opts_set" string:track_focus boolean:true &
+
+# Get window ID of currently focused window
+focused=$(dbus-send --print-reply --dest="$service" "$object" "${interface}.find_win" string:focused | $SED -n 's/^[[:space:]]*'${type_win}'[[:space:]]*\([[:digit:]]*\).*/\1/p')
+
+if [ -n "$focused" ]; then
+  # Get invert_color_force property of the focused window
+  color=$(dbus-send --print-reply --dest="$service" "$object" "${interface}.win_get" "${type_win}:${focused}" string:invert_color_force | $SED -n 's/^[[:space:]]*'${type_enum}'[[:space:]]*\([[:digit:]]*\).*/\1/p')
+  # Set the window to have inverted color
+  case "${color}" in
+    0)
+      # Set the window to have inverted color
+      dbus-send --print-reply --dest="$service" "$object" "${interface}.win_set" "${type_win}:${focused}" string:invert_color_force "${type_enum}:1" &
+    ;;
+    *) # Some windows have invert_color_force == 2
+      # Set the window to have normal color
+      dbus-send --print-reply --dest="$service" "$object" "${interface}.win_set" "${type_win}:${focused}" string:invert_color_force "${type_enum}:0" &
+    ;;
+  esac
+else
+  echo "Cannot find focused window."
+  exit 1;
+fi
+exit 0;

From 411626b2b895841020940f2fdfecc8f8f1e08e32 Mon Sep 17 00:00:00 2001
From: Que Quotion <quequotion@bugmenot.com>
Date: Mon, 6 Jan 2014 22:50:10 +0900
Subject: [PATCH 2/5] Window Color Inverter

Added richardgv's improvements
+Invert mouse-selected window (+default behavior)
+Invert window with specified window-id
+Help output (minimal catchall)

inverter.sh [ selected | focused | window-id ]
---
 dbus-examples/inverter.sh | 62 ++++++++++++++++++++++++---------------
 1 file changed, 39 insertions(+), 23 deletions(-)

diff --git a/dbus-examples/inverter.sh b/dbus-examples/inverter.sh
index eb2df58..612579c 100644
--- a/dbus-examples/inverter.sh
+++ b/dbus-examples/inverter.sh
@@ -1,6 +1,20 @@
 #!/bin/sh
 
-#TODO: Check compton running; Check dbus interface available
+# === 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"
@@ -18,34 +32,36 @@ fi
 
 service="com.github.chjj.compton.${dpy}"
 interface="com.github.chjj.compton"
-object='/com/github/chjj/compton'
+compton_dbus="dbus-send --print-reply --dest="${service}" / "${interface}"."
 type_win='uint32'
 type_enum='uint16'
 
 # === Color Inversion ===
 
-# Ensure we are tracking focus
-dbus-send --print-reply --dest="$service" "$object" "${interface}.opts_set" string:track_focus boolean:true &
-
-# Get window ID of currently focused window
-focused=$(dbus-send --print-reply --dest="$service" "$object" "${interface}.find_win" string:focused | $SED -n 's/^[[:space:]]*'${type_win}'[[:space:]]*\([[:digit:]]*\).*/\1/p')
-
-if [ -n "$focused" ]; then
-  # Get invert_color_force property of the focused window
-  color=$(dbus-send --print-reply --dest="$service" "$object" "${interface}.win_get" "${type_win}:${focused}" string:invert_color_force | $SED -n 's/^[[:space:]]*'${type_enum}'[[:space:]]*\([[:digit:]]*\).*/\1/p')
-  # Set the window to have inverted color
-  case "${color}" in
-    0)
-      # Set the window to have inverted color
-      dbus-send --print-reply --dest="$service" "$object" "${interface}.win_set" "${type_win}:${focused}" string:invert_color_force "${type_enum}:1" &
-    ;;
-    *) # Some windows have invert_color_force == 2
-      # Set the window to have normal color
-      dbus-send --print-reply --dest="$service" "$object" "${interface}.win_set" "${type_win}:${focused}" string:invert_color_force "${type_enum}:0" &
-    ;;
-  esac
+# 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 "Cannot find focused window."
+  echo "$0" "[ selected | focused | window-id ]"
+  exit 1;
+fi
+
+# Color invert the selected or focused window
+if [ -n "$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;

From b74ca2b6aad29132d67e58f39a023b2fa4f6ad58 Mon Sep 17 00:00:00 2001
From: Que Quotion <quequotion@bugmenot.com>
Date: Mon, 6 Jan 2014 23:23:42 +0900
Subject: [PATCH 3/5] Window Color Inverter +Improved help output for bad
 window-id

---
 dbus-examples/inverter.sh | 1 -
 1 file changed, 1 deletion(-)

diff --git a/dbus-examples/inverter.sh b/dbus-examples/inverter.sh
index 612579c..a60960f 100644
--- a/dbus-examples/inverter.sh
+++ b/dbus-examples/inverter.sh
@@ -49,7 +49,6 @@ elif [ -n "$(${compton_dbus}list_win | grep "$1")" ]; then
   window="$1"
 else
   echo "$0" "[ selected | focused | window-id ]"
-  exit 1;
 fi
 
 # Color invert the selected or focused window

From 1bc543e5d2629403939b9cb1796f925487306020 Mon Sep 17 00:00:00 2001
From: Que Quotion <quequotion@bugmenot.com>
Date: Mon, 6 Jan 2014 23:44:12 +0900
Subject: [PATCH 4/5] Window Color Inverter +lastfix: forgot to grep -w for
 window-id to avoid false-positves

---
 dbus-examples/inverter.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dbus-examples/inverter.sh b/dbus-examples/inverter.sh
index a60960f..3344ffd 100644
--- a/dbus-examples/inverter.sh
+++ b/dbus-examples/inverter.sh
@@ -45,7 +45,7 @@ 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 "$1")" ]; then
+elif [ -n "$(${compton_dbus}list_win | grep -w "$1")" ]; then
   window="$1"
 else
   echo "$0" "[ selected | focused | window-id ]"

From 9b9fa2c95fff4b152b0bc0855445e924ca8a75a8 Mon Sep 17 00:00:00 2001
From: Que Quotion <quequotion@bugmenot.com>
Date: Mon, 6 Jan 2014 23:46:55 +0900
Subject: [PATCH 5/5] Window Color Converter +reallylastfix: One more comment;
 that's all.

---
 dbus-examples/inverter.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dbus-examples/inverter.sh b/dbus-examples/inverter.sh
index 3344ffd..195564f 100644
--- a/dbus-examples/inverter.sh
+++ b/dbus-examples/inverter.sh
@@ -46,7 +46,7 @@ elif [ "$1" = "focused" ]; then
   ${compton_dbus}opts_set string:track_focus boolean:true &
   window=$(${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"
+  window="$1" # Accept user-specified window-id if compton managed
 else
   echo "$0" "[ selected | focused | window-id ]"
 fi