1 files changed, 59 insertions, 0 deletions
diff --git a/config/i3blocks/scripts/wifi b/config/i3blocks/scripts/wifi
new file mode 100755
index 0000000..258ac8c
--- /dev/null
+++ b/config/i3blocks/scripts/wifi
@@ -0,0 +1,59 @@
+#!/usr/bin/env bash
+# Copyright (C) 2014 Alexander Keller <github@nycroth.com>
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#------------------------------------------------------------------------
+if [[ -z "$INTERFACE" ]] ; then
+    INTERFACE="${BLOCK_INSTANCE:-wlan0}"
+fi
+#------------------------------------------------------------------------
+
+COLOR_GE80=${COLOR_GE80:-#00FF00}
+COLOR_GE60=${COLOR_GE60:-#FFF600}
+COLOR_GE40=${COLOR_GE40:-#FFAE00}
+COLOR_LOWR=${COLOR_LOWR:-#FF0000}
+COLOR_DOWN=${COLOR_DOWN:-#FF0000}
+
+# As per #36 -- It is transparent: e.g. if the machine has no battery or wireless
+# connection (think desktop), the corresponding block should not be displayed.
+[[ ! -d /sys/class/net/${INTERFACE}/wireless ]] && exit
+
+# If the wifi interface exists but no connection is active, "down" shall be displayed.
+if [[ "$(cat /sys/class/net/$INTERFACE/operstate)" = 'down' ]]; then
+    echo "down"
+    echo "down"
+    echo $COLOR_DOWN
+    exit
+fi
+
+#------------------------------------------------------------------------
+
+QUALITY=$(iw dev ${INTERFACE} link | grep 'dBm$' | grep -Eoe '-[0-9]{2}' | awk '{print  ($1 > -50 ? 100 :($1 < -100 ? 0 : ($1+100)*2))}')
+
+#------------------------------------------------------------------------
+
+echo $QUALITY% # full text
+echo $QUALITY% # short text
+
+# color
+if [[ $QUALITY -ge 80 ]]; then
+    echo $COLOR_GE80
+elif [[ $QUALITY -ge 60 ]]; then
+    echo $COLOR_GE60
+elif [[ $QUALITY -ge 40 ]]; then
+    echo $COLOR_GE40
+else
+    echo $COLOR_LOWR
+fi