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[etc/awesome.git] / widgets / bat.lua
diff --git a/widgets/bat.lua b/widgets/bat.lua
index 2ace758d7a786b5183a60f7d4f8fc2c58e4a8b62..8b62790104d287aa514cb556c707083e2493be0a 100644 (file)
--- a/widgets/bat.lua
+++ b/widgets/bat.lua
@@ -1,151 +1,183 @@
 
 --[[
 
 --[[
-                                                  
-     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 first_line   = require("lain.helpers").first_line
 local first_line   = require("lain.helpers").first_line
-
+local make_widget  = require("lain.helpers").make_widget_textbox
+local newtimer     = require("lain.helpers").newtimer
 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 ipairs       = ipairs
+local type         = type
 local tonumber     = tonumber
 local tonumber     = tonumber
-
 local setmetatable = setmetatable
 
 -- Battery infos
 -- lain.widgets.bat
 local setmetatable = setmetatable
 
 -- Battery infos
 -- lain.widgets.bat
-local bat = {}
 
 local function worker(args)
 
 local function worker(args)
-    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 bat       = make_widget()
+    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_notification_low_preset = {
 
     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",
-            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") 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"
+    bat_now = {
+        status    = "N/A",
+        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 = {}
+    bat_now.n_perc   = {}
+    for i = 1, #batteries do
+        bat_now.n_status[i] = "N/A"
+        bat_now.n_perc[i] = 0
+    end
 
 
-            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
+    function bat.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 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"
+                bat_now.n_perc[i]   = energy_percentage or bat_now.n_perc[i]
+
+                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)
             end
             end
+        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.perc = first_line(bstr .. "/capacity")
-
-            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"
-                end
+        -- When one of the battery is charging, others' status are either
+        -- "Full", "Unknown" or "Charging". When the laptop is not plugged in,
+        -- one or more of the batteries may be full, but only one battery
+        -- discharging suffices to set global status to "Discharging".
+        bat_now.status = bat_now.n_status[1]
+        for _,status in ipairs(bat_now.n_status) do
+            if status == "Discharging" or status == "Charging" then
+                bat_now.status = status
             end
             end
-
-            if rate ~= nil and ratev ~= nil then
-                bat_now.watt = string.format("%.2fW", (rate * ratev) / 1e12)
-            else
-                bat_now.watt = "N/A"
+        end
+        bat_now.ac_status = tonumber(first_line(string.format("%s%s/online", pspath, ac))) or "N/A"
+
+        if bat_now.status ~= "N/A" then
+            if bat_now.status ~= "Full" and sum_rate_power == 0 and bat_now.ac_status == 1 then
+                                                               bat_now.perc  = math.floor(math.min(100, (sum_energy_now / sum_energy_full) * 100))
+                                                               bat_now.time  = "00:00"
+                                                               bat_now.watt  = 0
+
+            -- update {perc,time,watt} iff battery not full and rate > 0
+            elseif bat_now.status ~= "Full" then
+                local rate_time = 0
+                -- Calculate time and watt if rates are greater then 0
+                if (sum_rate_power > 0 or sum_rate_current > 0) then
+                    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 0 < rate_time and 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
+                 end
+
+                local hours   = math.floor(rate_time)
+                local minutes = math.floor((rate_time - hours) * 60)
+                bat_now.perc  = math.floor(math.min(100, (sum_energy_now / sum_energy_full) * 100))
+                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 ~= nil
-        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,
-                    screen = client.focus and client.focus.screen or 1
+                    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,
-                    screen = client.focus and client.focus.screen or 1
+                    replaces_id = bat.id
                 }).id
             end
         end
     end
 
                 }).id
             end
         end
     end
 
-    newtimer("bat", timeout, update)
-
-    return bat.widget
+    newtimer("batteries", timeout, bat.update)
+    
+    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

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.