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#211: wiki updated
[etc/awesome.git] / widgets / bat.lua
diff --git a/widgets/bat.lua b/widgets/bat.lua
index 9740bbed1e75ee0b0655b3295e73eeb65937a9dd..ec9a289bf86530cc9da2f78491dbc0b092e96e5a 100644 (file)
--- a/widgets/bat.lua
+++ b/widgets/bat.lua
@@ -1,10 +1,10 @@
 
 --[[
 
 --[[
-                                                  
-     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 newtimer     = require("lain.helpers").newtimer
 --]]
 
 local newtimer     = require("lain.helpers").newtimer
@@ -13,131 +13,148 @@ 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         = { abs    = math.abs,
+                       floor  = math.floor,
+                       log10  = math.log10,
+                       min    = math.min }
 local string       = { format = string.format }
 local string       = { format = string.format }
-local tonumber     = tonumber
 
 
+local type         = type
+local tonumber     = tonumber
 local setmetatable = setmetatable
 
 -- Battery infos
 -- lain.widgets.bat
 
 local function worker(args)
 local setmetatable = setmetatable
 
 -- Battery infos
 -- 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 ac       = args.ac or "AC0"
-    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"
     }
 
     }
 
-    function update()
-        bat_now = {
-            status    = "Not present",
-            ac_status = "N/A",
-            perc      = "N/A",
-            time      = "N/A",
-            watt      = "N/A"
-        }
-
-        local bstr    = "/sys/class/power_supply/" .. battery
-        local present = first_line(bstr .. "/present")
-
-        if present == "1"
-        then
-            local rate     = first_line(bstr .. "/power_now")
-
-            local rate_alt = 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"
-            bat_now.ac     = first_line(string.format("/sys/class/power_supply/%s/online", ac)) or "N/A"
-
-            rate  = tonumber(rate)
-            ratev = tonumber(ratev)
-            rem   = tonumber(rem)
-            tot   = tonumber(tot)
-
-            local time_rat = 0
-            if bat_now.status == "Charging"
-            then
-                time_rat = (tot - rem) / rate
-            elseif bat_now.status == "Discharging"
-            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
-
-            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 = {
+        status    = "N/A",
+        ac_status = "N/A",
+        perc      = "N/A",
+        time      = "N/A",
+        watt      = "N/A"
+    }
 
 
-            local perc = tonumber(first_line(bstr .. "/capacity")) or math.floor((rem / tot) * 100)
+    bat_now.n_status = {}
+    for i = 1, #batteries do
+        bat_now.n_status[i] = "N/A"
+    end
 
 
-            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"
+    function update()
+        local sum_rate_current      = 0
+        local sum_rate_voltage      = 0
+        local sum_rate_power        = 0
+        local sum_rate_energy       = 0
+        local sum_energy_now        = 0
+        local sum_energy_full       = 0
+        local sum_energy_percentage = 0
+        local pspath                = "/sys/class/power_supply/"
+
+        for i, battery in ipairs(batteries) do
+            local bstr    = pspath .. battery
+            local present = first_line(bstr .. "/present")
+
+            if tonumber(present) == 1 then
+                -- 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"))
+
+                -- energy_now(P)[uWh], charge_now(I)[uAh]
+                local energy_now        = tonumber(first_line(bstr .. "/energy_now") or
+                                          first_line(bstr .. "/charge_now"))
+
+                -- energy_full(P)[uWh], charge_full(I)[uAh]
+                local energy_full       = tonumber(first_line(bstr .. "/energy_full") or
+                                          first_line(bstr .. "/charge_full"))
+
+                local energy_percentage = tonumber(first_line(bstr .. "/capacity")) or
+                                          math.floor((energy_now / energy_full) * 100)
+
+                bat_now.n_status[i] = first_line(bstr .. "/status") or "N/A"
+
+                sum_rate_current      = sum_rate_current + (rate_current or 0)
+                sum_rate_voltage      = sum_rate_voltage + (rate_voltage or 0)
+                sum_rate_power        = sum_rate_power + (rate_power or 0)
+                sum_rate_energy       = sum_rate_energy + (rate_power or (((rate_voltage or 0) * (rate_current or 0)) / 1e6))
+                sum_energy_now        = sum_energy_now + (energy_now or 0)
+                sum_energy_full       = sum_energy_full + (energy_full or 0)
+                sum_energy_percentage = sum_energy_percentage + (energy_percentage or 0)
             end
             end
+        end
 
 
-            if rate and ratev then
-                bat_now.watt = string.format("%.2fW", (rate * ratev) / 1e12)
-            elseif rate_alt then
-                bat_now.watt = string.format("%.2fW", rate_alt)
-            else
-                bat_now.watt = "N/A"
+        bat_now.status = bat_now.n_status[1]
+        bat_now.ac_status = tonumber(first_line(string.format("%s%s/online", pspath, ac))) or "N/A"
+
+        if bat_now.status ~= "N/A" then
+            -- update {perc,time,watt} iff battery not full and rate > 0
+            if bat_now.status ~= "Full" and (sum_rate_power > 0 or sum_rate_current > 0) then
+                local rate_time = 0
+                local div = (sum_rate_power > 0 and sum_rate_power) or sum_rate_current
+
+                if bat_now.status == "Charging" then
+                    rate_time = (sum_energy_full - sum_energy_now) / div
+                else -- Discharging
+                    rate_time = sum_energy_now / div
+                end
+
+                if rate_time < 0.01 then -- check for magnitude discrepancies (#199)
+                    rate_time_magnitude = math.abs(math.floor(math.log10(rate_time)))
+                    rate_time = rate_time * 10^(rate_time_magnitude - 2)
+                end
+
+                local hours     = math.floor(rate_time)
+                local minutes   = math.floor((rate_time - hours) * 60)
+                bat_now.perc    = tonumber(string.format("%d", math.floor(math.min(100, sum_energy_percentage / #batteries))))
+                bat_now.time    = string.format("%02d:%02d", hours, minutes)
+                bat_now.watt    = tonumber(string.format("%.2f", sum_rate_energy / 1e6))
+            elseif bat_now.status == "Full" then
+                bat_now.perc    = 100
+                bat_now.time    = "00:00"
+                bat_now.watt    = 0
             end
             end
-
         end
 
         widget = bat.widget
         settings()
 
         -- notifications for low and critical states
         end
 
         widget = bat.widget
         settings()
 
         -- notifications for low and critical states
-        if bat_now.status == "Discharging" and notify == "on" and bat_now.perc
-        then
-            local nperc = tonumber(bat_now.perc) or 100
-            if nperc <= 5
-            then
+        if notify == "on" and type(bat_now.perc) == "number" and bat_now.status == "Discharging" then
+            if bat_now.perc <= 5 then
                 bat.id = naughty.notify({
                     preset = bat_notification_critical_preset,
                 bat.id = naughty.notify({
                     preset = bat_notification_critical_preset,
-                    replaces_id = bat.id,
+                    replaces_id = bat.id
                 }).id
                 }).id
-            elseif nperc <= 15
-            then
+            elseif bat_now.perc <= 15 then
                 bat.id = naughty.notify({
                     preset = bat_notification_low_preset,
                 bat.id = naughty.notify({
                     preset = bat_notification_low_preset,
-                    replaces_id = bat.id,
+                    replaces_id = bat.id
                 }).id
             end
         end
                 }).id
             end
         end
awesome window-manager configuration

Legalese

All content available in this repository is copyright © martin f. krafft, unless otherwise noted.

All files and their content are released under the terms of the Artistic Licence 2.0, unless otherwise noted.

The operator of this repository shall not be held liable for offending content in pages linking to or linked from these page, nor does he endorse their content unless stated otherwise.