i3: add mod+t to toggle touchpad

files/.config/i3/bin/toggle-touchpad

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+synclient=/usr/bin/synclient
+prop='TouchpadOff'
+
+if ! [ -x "$synclient" ]; then
+    exit 2
+fi
+
+state=$(${synclient} -l \
+    | grep "^    ${prop}" \
+    | sed 's/^.*= \([01]\)$/\1/g' \
+    | head -n 1)
+
+if [ -z "$state" ] || $(echo "$state" | grep -vq '^[01]$') ; then
+    exit 1
+fi
+
+nState=$((($state + 1) % 2))
+$synclient "$prop=$nState"

files/.config/i3/config

@@ -38,6 +38,9 @@ bindsym $mod+z exec ~/.config/i3/bin/i3lock
 # kill focused window
 bindsym $mod+Shift+q kill
 
+# Toggle touchpad
+bindsym $mod+t exec ~/.config/i3/bin/toggle-touchpad
+
 ## Specific applications
 # start dmenu (a program launcher)
 bindsym $mod+d exec dmenu_run