]> git.madduck.net Git - etc/awesome.git/blobdiff - widgets/bat.lua

madduck's git repository

Every one of the projects in this repository is available at the canonical URL git://git.madduck.net/madduck/pub/<projectpath> — see each project's metadata for the exact URL.

All patches and comments are welcome. Please squash your changes to logical commits before using git-format-patch and git-send-email to patches@git.madduck.net. If you'd read over the Git project's submission guidelines and adhered to them, I'd be especially grateful.

SSH access, as well as push access can be individually arranged.

If you use my repositories frequently, consider adding the following snippet to ~/.gitconfig and using the third clone URL listed for each project:

[url "git://git.madduck.net/madduck/"]
  insteadOf = madduck:

quake: updated spawn call
[etc/awesome.git] / widgets / bat.lua
index d3185890d04032cd8e3165b0090278bf245e3a38..0b1bc0c4e6a2d1097a5f3ebd9a3df9badb6a0d6f 100644 (file)
                                                                                                                        
 --]]
 
-local newtimer     = require("lain.helpers").newtimer
 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 math         = { floor  = math.floor }
+local math         = { abs    = math.abs,
+                       floor  = math.floor,
+                       log10  = math.log10,
+                       min    = math.min }
 local string       = { format = string.format }
-local tonumber     = tonumber
 
+local ipairs       = ipairs
+local type         = type
+local tonumber     = tonumber
 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
-
-       bat.widget = wibox.widget.textbox('')
-
-       bat_notification_low_preset = {
+    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 = {
         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",
-                       ac_status = "N/A",
-                       perc      = "N/A",
-                       time      = "N/A",
-                       watt      = "N/A"
-               }
-
-               local bstr    = "/sys/class/power_supply/" .. battery
-               local astr    = "/sys/class/power_supply/" .. ac
-               local present = first_line(bstr .. "/present")
-
-               if 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.status    = first_line(bstr .. "/status") or "N/A"
-                       bat_now.ac_status = first_line(astr .. "/online") or "N/A"
-
-                       -- if rate = 0 or rate not defined skip the round
-                       if      not (rate_power and rate_power > 0) and
-          not (rate_current and  rate_current > 0) and
-          not (bat_now.status == "Full")
-                       then
-          return
-                       end
-
-                       local rate_time = 0
-                       if bat_now.status == "Charging" then
-          rate_time = (energy_full - energy_now) / (rate_power or rate_current)
-                       elseif bat_now.status == "Discharging" then
-          rate_time = energy_now / (rate_power or rate_current)
-                       end
-
-                       local hours   = math.floor(rate_time)
-                       local minutes = math.floor((rate_time - hours) * 60)
-      local watt    = rate_power and (rate_power / 1e6) or (rate_voltage * rate_current) / 1e12
-
-                       bat_now.perc = string.format("%d", energy_percentage)
-                       bat_now.time = string.format("%02d:%02d", hours, minutes)
-                       bat_now.watt = string.format("%.2fW", watt)
-               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
-                               bat.id = naughty.notify({
-                                       preset = bat_notification_critical_preset,
-                                       replaces_id = bat.id,
-                               }).id
-                       elseif nperc <= 15 then
-                               bat.id = naughty.notify({
-                                       preset = bat_notification_low_preset,
-                                       replaces_id = bat.id,
-                               }).id
-                       end
-               end
-       end
-
-  newtimer(battery, timeout, update)
-
-       return setmetatable(bat, { __index = bat.widget })
+        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"
+    }
+
+    bat_now = {
+        status    = "N/A",
+        ac_status = "N/A",
+        perc      = "N/A",
+        time      = "N/A",
+        watt      = "N/A"
+    }
+
+    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
+
+    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
+
+        -- 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
+        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 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
+
+                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" 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
+            elseif bat_now.status == "Full" then
+                bat_now.perc  = 100
+                bat_now.time  = "00:00"
+                bat_now.watt  = 0
+            end
+        end
+
+        widget = bat.widget
+        settings()
+
+        -- notifications for low and critical states
+        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,
+                    replaces_id = bat.id
+                }).id
+            elseif bat_now.perc <= 15 then
+                bat.id = naughty.notify({
+                    preset = bat_notification_low_preset,
+                    replaces_id = bat.id
+                }).id
+            end
+        end
+    end
+
+    newtimer(battery, timeout, bat.update)
+
+    return bat
 end
 
 return setmetatable({}, { __call = function(_, ...) return worker(...) end })