Update battery.plugin.bash

- Add WIndows Bash checker.
- Clean and organize the code.

plugins/available/battery.plugin.bash

@@ -10,6 +10,10 @@ ac_adapter_connected(){
   then
     ioreg -n AppleSmartBattery -r | grep -q '"ExternalConnected" = Yes'
     return $?
+  elif command_exists WMIC;
+  then
+    WMIC Path Win32_Battery Get BatteryStatus /Format:List | grep -q 'BatteryStatus=2'
+    return $?
   fi
 }
 
@@ -22,6 +26,10 @@ ac_adapter_disconnected(){
   then
     ioreg -n AppleSmartBattery -r | grep -q '"ExternalConnected" = No'
     return $?
+  elif command_exists WMIC;
+  then
+    WMIC Path Win32_Battery Get BatteryStatus /Format:List | grep -q 'BatteryStatus=1'
+    return $?
   fi
 }
 
@@ -58,9 +66,6 @@ battery_percentage(){
     esac
   elif command_exists ioreg;
   then
-    # http://hints.macworld.com/article.php?story=20100130123935998
-    #local IOREG_OUTPUT_10_6=$(ioreg -l | grep -i capacity | tr '\n' ' | ' | awk '{printf("%.2f%%", $10/$5 * 100)}')
-    #local IOREG_OUTPUT_10_5=$(ioreg -l | grep -i capacity | grep -v Legacy| tr '\n' ' | ' | awk '{printf("%.2f%%", $14/$7 * 100)}')
     local IOREG_OUTPUT=$(ioreg -n AppleSmartBattery -r | awk '$1~/Capacity/{c[$1]=$3} END{OFMT="%05.2f%%"; max=c["\"MaxCapacity\""]; print (max>0? 100*c["\"CurrentCapacity\""]/max: "?")}')
     case $IOREG_OUTPUT in
       100*)
@@ -70,6 +75,17 @@ battery_percentage(){
         echo $IOREG_OUTPUT | head -c 2
       ;;
     esac
+  elif command_exists WMIC;
+  then
+    local WINPC=$(echo porcent=$(WMIC PATH Win32_Battery Get EstimatedChargeRemaining /Format:List) | grep -o '[0-9]*')
+    case $WINPC in
+      100*)
+        echo '100'
+      ;;
+      *)
+        echo $WINPC
+      ;;
+    esac
   else
     echo "no"
   fi