From 9807eec36f001273c83a1b29027b311b145dc80d Mon Sep 17 00:00:00 2001
From: Eduardo Pedroni <e.pedroni91@gmail.com>
Date: Sun, 1 Nov 2015 17:33:24 +0100
Subject: Added strength to wlan function

---
 dwm-statusbar | 33 +++++++++++++++++++++++++++++----
 1 file changed, 29 insertions(+), 4 deletions(-)

diff --git a/dwm-statusbar b/dwm-statusbar
index 27ded09..723675a 100755
--- a/dwm-statusbar
+++ b/dwm-statusbar
@@ -219,19 +219,44 @@ print_eth() {
   echo -ne "${icon_colour}\uE0E4${eth_colour}${eth_ip}"
 }
 
-# Configure the adapter to display above
+# Configure the adapter to display above, strength might need to be tweaked
 print_wlan() {
+
+  wifi_status=$(ip addr show dev wlan0 | awk 'NR==1 {print $9}')
+  
+  if [ "$wifi_status" == "UP" ]; then
+    
+    wifi_ip=$(ip addr show dev wlan0 | awk 'NR==3 {print $2}' | sed -r 's/\/.*/, /')
+    
+  else
+    icon_colour=${colour_faded}
+  fi
+
+
   wlan_status=$(ip addr show dev ${wlan_adapter} | awk 'NR==1 {print $9}')
   
   if [ "$wlan_status" == "UP" ]; then
     wlan_ip=$(ip addr show dev ${wlan_adapter} | awk 'NR==3 {print $2}' | sed -r 's/\/.*//')
-    icon_colour=${colour_neutral}
-    wlan_colour=${colour_normal}
+    
+    let wlan_strength="10 * $(cat /proc/net/wireless | awk 'NR==3 {print substr($3, 1, 2)}') / 7"
+    if [ $wlan_strength -lt 25 ]; then
+      icon_colour=${colour_critical}
+      wlan_colour=${colour_critical}
+    elif [ $wlan_strength -lt 50 ]; then
+      icon_colour=${colour_warning}
+      wlan_colour=${colour_warning}
+    else
+      icon_colour=${colour_neutral}
+      wlan_colour=${colour_normal}
+    fi
+    
+    wlan_strength="${wlan_strength}%"
+
   else
     icon_colour=${colour_faded}
   fi
 
-  echo -ne "${icon_colour}\uE401${wlan_colour}${wlan_ip}"
+  echo -ne "${icon_colour}\uE401${wlan_colour}${wlan_ip}${wlan_strength}"
 }
 
 while true; do
-- 
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