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#199 syntactic change
[etc/awesome.git] / widgets / bat.lua
diff --git a/widgets/bat.lua b/widgets/bat.lua
index d18af87b35001ab4021627fc74e451902e283a8b..3b9cca07bc290d0854dd5f4b92ff6319eb1637bc 100644 (file)
--- a/widgets/bat.lua
+++ b/widgets/bat.lua
@@ -1,17 +1,19 @@
 
 --[[
 
 --[[
-                                                  
-     Licensed under GNU General Public License v2 
-      * (c) 2013,      Luke Bonham                
-      * (c) 2010-2012, Peter Hofmann              
-                                                  
+                                                                                                                       
+        Licensed under GNU General Public License v2 
+         * (c) 2013,      Luke Bonham                
+         * (c) 2010-2012, Peter Hofmann              
+                                                                                                                       
 --]]
 
 --]]
 
-local helpers      = require("lain.helpers")
+local newtimer     = require("lain.helpers").newtimer
+local first_line   = require("lain.helpers").first_line
+
 local naughty      = require("naughty")
 local wibox        = require("wibox")
 
 local naughty      = require("naughty")
 local wibox        = require("wibox")
 
-local math         = { floor  = math.floor }
+local math         = { floor  = math.floor, min = math.min }
 local string       = { format = string.format }
 local tonumber     = tonumber
 
 local string       = { format = string.format }
 local tonumber     = tonumber
 
@@ -21,131 +23,124 @@ local setmetatable = setmetatable
 -- lain.widgets.bat
 
 local function worker(args)
 -- lain.widgets.bat
 
 local function worker(args)
-    local bat = {}
-    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
+    local bat       = {}
+    local args      = args or {}
+    local timeout   = args.timeout or 30
+    local batteries = args.batteries or (args.battery and {args.battery}) or {"BAT0"}
+    local ac        = args.ac or "AC0"
+    local notify    = args.notify or "on"
+    local settings  = args.settings or function() end
 
     bat.widget = wibox.widget.textbox('')
 
     bat_notification_low_preset = {
 
     bat.widget = wibox.widget.textbox('')
 
     bat_notification_low_preset = {
-        title = "Battery low",
-        text = "Plug the cable!",
+        title   = "Battery low",
+        text    = "Plug the cable!",
         timeout = 15,
         timeout = 15,
-        fg = "#202020",
-        bg = "#CDCDCD"
+        fg      = "#202020",
+        bg      = "#CDCDCD"
     }
 
     bat_notification_critical_preset = {
     }
 
     bat_notification_critical_preset = {
-        title = "Battery exhausted",
-        text = "Shutdown imminent",
+        title   = "Battery exhausted",
+        text    = "Shutdown imminent",
         timeout = 15,
         timeout = 15,
-        fg = "#000000",
-        bg = "#FFFFFF"
+        fg      = "#000000",
+        bg      = "#FFFFFF"
     }
 
     }
 
-    helpers.set_map(battery .. "status", "N/A")
-    helpers.set_map(battery .. "perc", "N/A")
-    helpers.set_map(battery .. "time", "N/A")
-    helpers.set_map(battery .. "watt", "N/A")
-
-    function update()
-        bat_now = {
-            status = "Not present",
-            perc   = "N/A",
-            time   = "N/A",
-            watt   = "N/A"
-        }
-
-        local bstr  = "/sys/class/power_supply/" .. battery
-
-        local present = helpers.first_line(bstr .. "/present")
-
-        if present == "1"
-        then
-            local rate  = helpers.first_line(bstr .. "/power_now") or
-                          helpers.first_line(bstr .. "/current_now")
-
-            local ratev = helpers.first_line(bstr .. "/voltage_now")
-
-            local rem   = helpers.first_line(bstr .. "/energy_now") or
-                          helpers.first_line(bstr .. "/charge_now")
-
-            local tot   = helpers.first_line(bstr .. "/energy_full") or
-                          helpers.first_line(bstr .. "/charge_full")
-
-            bat_now.status = helpers.first_line(bstr .. "/status") or "N/A"
+    bat_now = {
+        status    = "Not present",
+        ac_status = "N/A",
+        perc      = "N/A",
+        time      = "N/A",
+        watt      = "N/A"
+    }
 
 
-            rate  = tonumber(rate) or 1
-            ratev = tonumber(ratev)
-            rem   = tonumber(rem)
-            tot   = tonumber(tot)
+    bat_now.n_status = {}
+    for i = 1, #batteries do
+        bat_now.n_status[i] = "Not present"
+    end
 
 
-            local time_rat = 0
-            if bat_now.status == "Charging"
-            then
-                time_rat = (tot - rem) / rate
-            elseif bat_now.status == "Discharging"
+    function update()
+        local sum_rate_current = 0
+        local sum_rate_voltage = 0
+        local sum_rate_power = 0
+        local sum_energy_now = 0
+        local sum_energy_full = 0
+        local sum_energy_percentage = 0
+
+        for i, battery in ipairs(batteries) do
+            local bstr    = "/sys/class/power_supply/" .. battery
+            local present = first_line(bstr .. "/present")
+
+            if present == "1"
             then
             then
-                time_rat = rem / rate
-            end
-
-            local hrs = math.floor(time_rat)
-            if hrs < 0 then hrs = 0 elseif hrs > 23 then hrs = 23 end
+                -- current_now(I)[uA], voltage_now(U)[uV], power_now(P)[uW]
+                local rate_current      = tonumber(first_line(bstr .. "/current_now"))
+                local rate_voltage      = tonumber(first_line(bstr .. "/voltage_now"))
+                local rate_power        = tonumber(first_line(bstr .. "/power_now"))
 
 
-            local min = math.floor((time_rat - hrs) * 60)
-            if min < 0 then min = 0 elseif min > 59 then min = 59 end
+                -- energy_now(P)[uWh], charge_now(I)[uAh]
+                local energy_now        = tonumber(first_line(bstr .. "/energy_now") or
+                                          first_line(bstr .. "/charge_now"))
 
 
-            bat_now.time = string.format("%02d:%02d", hrs, min)
+                -- energy_full(P)[uWh], charge_full(I)[uAh]
+                local energy_full       = tonumber(first_line(bstr .. "/energy_full") or
+                                          first_line(bstr .. "/charge_full"))
 
 
-            bat_now.perc = helpers.first_line(bstr .. "/capacity")
+                local energy_percentage = tonumber(first_line(bstr .. "/capacity")) or
+                                          math.floor((energy_now / energy_full) * 100)
 
 
-            if not bat_now.perc then
-                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"
+                if bat_now.n_status[i] ~= "Charging" and bat_now.n_status[i] ~= "Discharging"
+                then
+                    bat_now.n_status[i] = first_line(bstr .. "/status") or "N/A"
                 end
                 end
-            end
 
 
-            if rate ~= nil and ratev ~= nil then
-                bat_now.watt = string.format("%.2fW", (rate * ratev) / 1e12)
-            else
-                bat_now.watt = "N/A"
+                sum_rate_current      = sum_rate_current + (rate_current or 0)
+                sum_rate_voltage      = sum_rate_voltage + rate_voltage
+                sum_rate_power        = sum_rate_power + (rate_power or ((rate_voltage * rate_current) / 1e6))
+                sum_energy_now        = sum_energy_now + energy_now
+                sum_energy_full       = sum_energy_full + energy_full
+                sum_energy_percentage = sum_energy_percentage + energy_percentage
             end
         end
 
             end
         end
 
-        if bat_now.status ~= helpers.get_map(battery .. "status")
-           or bat_now.perc ~= helpers.get_map(battery .. "perc")
-           or bat_now.time ~= helpers.get_map(battery .. "time")
-           or bat_now.watt ~= helpers.get_map(battery .. "watt")
+        bat_now.status = bat_now.n_status[1]
+        bat_now.ac_status = first_line(string.format("/sys/class/power_supply/%s/online", ac)) or "N/A"
+
+        -- update {perc,time,watt} iff rate > 0 and battery not full
+        if (sum_rate_current > 0 or sum_rate_power > 0) and not (bat_now.status == "Full")
         then
         then
-            widget = bat.widget
-            settings()
+            local rate_time = 0
 
 
-            helpers.set_map(battery .. "status", bat_now.status)
-            helpers.set_map(battery .. "perc", bat_now.perc)
-            helpers.set_map(battery .. "time", bat_now.time)
-            helpers.set_map(battery .. "watt", bat_now.watt)
+            if bat_now.status == "Charging" then
+                rate_time = (sum_energy_full - sum_energy_now) / (sum_rate_power or sum_rate_current)
+            elseif bat_now.status == "Discharging" then
+                rate_time = sum_energy_now / (sum_rate_power or sum_rate_current)
+            end
+
+            local hours   = math.floor(rate_time)
+            local minutes = math.floor((rate_time - hours) * 60)
+            local watt    = sum_rate_power / 1e6
+
+            bat_now.perc  = string.format("%d", math.min(100, sum_energy_percentage / #batteries))
+            bat_now.time  = string.format("%02d:%02d", hours, minutes)
+            bat_now.watt  = string.format("%.2fW", watt)
         end
 
         end
 
+        widget = bat.widget
+        settings()
+
         -- notifications for low and critical states
         -- notifications for low and critical states
-        if bat_now.status == "Discharging" and notify == "on" and bat_now.perc ~= nil
-        then
+        if bat_now.status == "Discharging" and notify == "on" and bat_now.perc then
             local nperc = tonumber(bat_now.perc) or 100
             local nperc = tonumber(bat_now.perc) or 100
-            if nperc <= 5
-            then
+            if nperc <= 5 then
                 bat.id = naughty.notify({
                     preset = bat_notification_critical_preset,
                     replaces_id = bat.id,
                 }).id
                 bat.id = naughty.notify({
                     preset = bat_notification_critical_preset,
                     replaces_id = bat.id,
                 }).id
-            elseif nperc <= 15
-            then
+            elseif nperc <= 15 then
                 bat.id = naughty.notify({
                     preset = bat_notification_low_preset,
                     replaces_id = bat.id,
                 bat.id = naughty.notify({
                     preset = bat_notification_low_preset,
                     replaces_id = bat.id,
@@ -154,9 +149,9 @@ local function worker(args)
         end
     end
 
         end
     end
 
-    helpers.newtimer(battery, timeout, update)
+    newtimer(battery, timeout, update)
 
 
-    return bat.widget
+    return setmetatable(bat, { __index = bat.widget })
 end
 
 end
 
-return setmetatable(bat, { __call = function(_, ...) return worker(...) end })
+return setmetatable({}, { __call = function(_, ...) return worker(...) end })
awesome window-manager configuration

Legalese

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