Merge pull request #24 from blueluke/battery

[etc/awesome.git] / widgets / bat.lua

diff --git a/widgets/bat.lua b/widgets/bat.lua
index 09b135fc29bc03463a411471c592b91430f6fa77..4a25d6315ced28c1d071408ccb5afd4f3ecd948b 100644 (file)
--- a/widgets/bat.lua
+++ b/widgets/bat.lua
@@ -15,6 +15,7 @@ local wibox        = require("wibox")
 
 local math         = { floor  = math.floor }
 local string       = { format = string.format }
 
 local math         = { floor  = math.floor }
 local string       = { format = string.format }

+local tonumber     = tonumber

 
 local setmetatable = setmetatable
 
 
 local setmetatable = setmetatable
 


@@ -26,10 +27,27 @@ local function worker(args)
     local args = args or {}
     local timeout = args.timeout or 30
     local battery = args.battery or "BAT0"
     local args = args or {}
     local timeout = args.timeout or 30
     local battery = args.battery or "BAT0"

+    local notify = args.notify or "on"

     local settings = args.settings or function() end
 
     bat.widget = wibox.widget.textbox('')
 
     local settings = args.settings or function() end
 
     bat.widget = wibox.widget.textbox('')
 

+    bat_notification_low_preset = {
+        title = "Battery low",
+        text = "Plug the cable!",
+        timeout = 15,
+        fg = "#202020",
+        bg = "#CDCDCD"
+    }
+
+    bat_notification_critical_preset = {
+        title = "Battery exhausted",
+        text = "Shutdown imminent",
+        timeout = 15,
+        fg = "#000000",
+        bg = "#FFFFFF"
+    }
+

     function update()
         bat_now = {
             status = "Not present",
     function update()
         bat_now = {
             status = "Not present",


@@ -38,27 +56,29 @@ local function worker(args)
             watt   = "N/A"
         }
 
             watt   = "N/A"
         }
 

-        local present = first_line("/sys/class/power_supply/"
-                                   .. battery
-                                   .. "/present")
+        local bstr  = "/sys/class/power_supply/" .. battery
+
+        local present = first_line(bstr .. "/present")

 
         if present == "1"
         then
 
         if present == "1"
         then

-            local rate = first_line("/sys/class/power_supply/"
-                                    .. battery ..
-                                    "/power_now")
-            local ratev = first_line("/sys/class/power_supply/"
-                                    .. battery ..
-                                     "/voltage_now")
-            local rem = first_line("/sys/class/power_supply/"
-                                    .. battery ..
-                                   "/energy_now")
-            local tot = first_line("/sys/class/power_supply/"
-                                    .. battery ..
-                                   "/energy_full")
-            bat_now.status = first_line("/sys/class/power_supply/"
-                                    .. battery ..
-                                   "/status")
+            local rate  = first_line(bstr .. "/power_now") or
+                          first_line(bstr .. "/current_now")
+
+            local ratev = first_line(bstr .. "/voltage_now")
+
+            local rem   = first_line(bstr .. "/energy_now") or
+                          first_line(bstr .. "/charge_now")
+
+            local tot   = first_line(bstr .. "/energy_full") or
+                          first_line(bstr .. "/charge_full")
+
+            bat_now.status = first_line(bstr .. "/status") or "N/A"
+
+            rate  = tonumber(rate)
+            ratev = tonumber(ratev)
+            rem   = tonumber(rem)
+            tot   = tonumber(tot)

 
             local time_rat = 0
             if bat_now.status == "Charging"
 
             local time_rat = 0
             if bat_now.status == "Charging"


@@ -70,44 +90,50 @@ local function worker(args)
             end
 
             local hrs = math.floor(time_rat)
             end
 
             local hrs = math.floor(time_rat)

-            local min = (time_rat - hrs) * 60
+            if hrs < 0 then hrs = 0 elseif hrs > 23 then hrs = 23 end
+
+            local min = math.floor((time_rat - hrs) * 60)
+            if min < 0 then min = 0 elseif min > 59 then min = 59 end

 
             bat_now.time = string.format("%02d:%02d", hrs, min)
 
             bat_now.time = string.format("%02d:%02d", hrs, min)

-            bat_now.perc = (rem / tot) * 100
-            bat_now.watt = string.format("%.2fW", (rate * ratev) / 1e12)

 
 

-            -- notifications for low and critical states
-            if bat_now.perc <= 5
+            local perc = (rem / tot) * 100
+            if perc <= 100 then
+                bat_now.perc = string.format("%d", perc)
+            elseif perc > 100 then
+                bat_now.perc = "100"
+            elseif perc < 0 then
+                bat_now.perc = "0"
+            end
+
+            if rate ~= nil and ratev ~= nil then
+                bat_now.watt = string.format("%.2fW", (rate * ratev) / 1e12)
+            else
+                bat_now.watt = "N/A"
+            end
+
+        end
+
+        widget = bat.widget
+        settings()
+
+        -- notifications for low and critical states
+        if bat_now.status == "Discharging" and notify == "on"
+        then
+            if tonumber(bat_now.perc) <= 5

             then
                 bat.id = naughty.notify({
             then
                 bat.id = naughty.notify({

-                    text = "shutdown imminent",
-                    title = "battery nearly exhausted",
-                    position = "top_right",
-                    timeout = 15,
-                    fg="#000000",
-                    bg="#ffffff",
-                    ontop = true,
+                    preset = bat_notification_critical_preset,

                     replaces_id = bat.id
                 }).id
                     replaces_id = bat.id
                 }).id

-            elseif bat.perc <= 15
+            elseif tonumber(bat_now.perc) <= 15

             then
                 bat.id = naughty.notify({
             then
                 bat.id = naughty.notify({

-                    text = "plug the cable",
-                    title = "battery low",
-                    position = "top_right",
-                    timeout = 15,
-                    fg="#202020",
-                    bg="#cdcdcd",
-                    ontop = true,
+                    preset = bat_notification_low_preset,

                     replaces_id = bat.id
                 }).id
             end
                     replaces_id = bat.id
                 }).id
             end

-
-            bat_now.perc = string.format("%d", bat_now.perc)

         end
         end

-
-        widget = bat.widget
-        settings()

     end
 
     newtimer("bat", timeout, update)
     end
 
     newtimer("bat", timeout, update)