Add rotation script sxmo_rotate.sh which fixes touchscreen input

scripts/core/sxmo_appmenu.sh

@@ -50,7 +50,7 @@ programchoicesinit() {
     Modem Log                  ^ 0 ^ sxmo_modemlog.sh
     Flash $(cat /sys/class/leds/white:flash/brightness | grep -E '^0$' > /dev/null && echo -n "Off → On" || echo -n "On → Off") ^ 1 ^ sxmo_flashtoggle.sh
     Bar Toggle                 ^ 1 ^ key Alt+b
-    Rotate                     ^ 1 ^ rotate
+    Rotate                     ^ 1 ^ sxmo_rotate.sh
     Wifi                       ^ 0 ^ st -e "nmtui"
     Audio Out                  ^ 0 ^ sxmo_audiooutmenu.sh
     Upgrade Pkgs               ^ 0 ^ st -e sxmo_upgrade.sh
@@ -161,10 +161,6 @@ getprogchoices() {
   PROGCHOICES="$(echo "$CHOICES" | xargs -0 echo | sed '/^[[:space:]]*$/d' | awk '{$1=$1};1')"
 }
 
-rotate() {
-  xrandr | grep primary | cut -d' ' -f 5 | grep right && xrandr -o normal || xrandr -o right
-}
-
 key() {
   xdotool windowactivate "$WIN"
   xdotool key --clearmodifiers "$1"

scripts/core/sxmo_rotate.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env sh
+
+applyptrmatrix() {
+  PTRID="$(  
+    xinput | grep -iE 'touchscreen.+pointer' | grep -oE 'id=[0-9]+' | cut -d= -f2
+  )"
+  xinput set-prop "$PTRID" --type=float --type=float "Coordinate Transformation Matrix" "$@"
+}
+
+isrotated() {
+  xrandr | grep primary | cut -d' ' -f 5 | grep right && return 0
+  return 1
+}
+
+rotnormal() {
+  xrandr -o normal
+  applyptrmatrix 0 0 0 0 0 0 0 0 0
+  exit 0
+}
+
+rotright() {
+  xrandr -o right
+  applyptrmatrix 0 1 0 -1 0 1 0 0 1
+  exit 0
+}
+
+rotate() {
+  isrotated && rotnormal || rotright
+}
+
+rotate