nougat_fbgrab.diff

diff --git a/nougat b/nougat
index b109713..9a6df26 100755
--- a/nougat
+++ b/nougat
@@ -16,9 +16,9 @@ saveourship(){
    echo -e  " -c - Puts the screenshot into your clipboard\n"
    echo -e  " -u - Hide cursor. (maim backend ONLY, see -b)"
    echo     " -b - Select backend to use"
-   echo -e  "              Supported backends are \`maim', \`scrot', and \`imagemagick'."
+   echo -e  "              Supported backends are \`maim', \`scrot', \`imagemagick' and \`fbgrab'."
    echo -e  "              nougat will detect available backends if -b"
-   echo -e  "              is not specified. nougat prefers maim to scrot.\n"
+   echo -e  "              is not specified. nougat prefers maim to scrot, and fbgrab from the tty.\n"
    echo     " -p - Cleans the \`all' subdirectory of $NOUGAT_SCREENSHOT_DIRECTORY."
    echo     "              Particularly useful as it cleans any links that no"
    echo -e  "              longer point to a screenshot (i.e. deleted screeenshot).\n"
@@ -128,14 +128,32 @@ imagemagickbackend(){
 
 }
 
+fbgrabbackend() {
+  local tmp="$(mktemp)"
+  cp /dev/fb0 "$tmp"
+  fbgrab -w 3200 -h 1800 -b 32 -f "$tmp" /tmp/nougat_temp.png
+}
+
+# To Do:
+#    * This doesn't work with tmux (and possibly other multiplexers)
+#    because they use a pseudo terminal (/dev/pts/[0-9]+), is there a better way?
+istty() {
+  local tty="$(tty)"
+
+  [[ "$tty" =~ "/dev/tty" ]] && return 0 || return 1
+}
+
 runbackend(){
 
     if [[ "$backend" == "" ]]
     then
 
-        command -v maim > /dev/null
+        istty
 
         if [[ "$?" == "0" ]]
+        then
+            backend="fbgrab"
+        elif command -v maim > /dev/null
         then
             backend="maim"
         else
@@ -158,6 +176,9 @@ runbackend(){
     fi
 
     case "$backend" in
+        fbgrab)
+            fbgrabbackend
+            ;;
         maim)
             maimbackend
             ;;