refractoring

modules/iface

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+# Use the provided interface, otherwise the device used for the default route.
+if [[ -n $BLOCK_INSTANCE ]]; then
+  IF=$BLOCK_INSTANCE
+else
+  IF=$(ip route | awk '/^default/ { print $5 ; exit }')
+fi
+
+# As per #36 -- It is transparent: e.g. if the machine has no battery or wireless
+# connection (think desktop), the corresponding block should not be displayed.
+[[ ! -d /sys/class/net/${IF} ]] && exit
+
+if [[ "$(cat /sys/class/net/$IF/operstate)" = 'down' ]]; then
+  echo down # full text
+  echo down # short text
+  echo \#FF0000 # color
+  exit
+fi
+
+case $1 in
+  -4)
+    AF=inet ;;
+  -6)
+    AF=inet6 ;;
+  *)
+    AF=inet6? ;;
+esac
+
+# if no interface is found, use the first device with a global scope
+IPADDR=$(ip addr show $IF | perl -n -e "/$AF ([^\/]+).* scope global/ && print \$1 and exit")
+
+case $BLOCK_BUTTON in
+  3) echo -n "$IPADDR" | xclip -q -se c ;;
+esac
+
+echo "$IPADDR" # full text
+echo "$IPADDR" # short text