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add screen and tag arguments to useless_gaps_resize function
[etc/awesome.git] / widget / bat.lua
diff --git a/widget/bat.lua b/widget/bat.lua
index e901842f27fc0492d5fe75952b217d895177d91e..b65494811286e4a5e8087ef413e16e698e506ba7 100644 (file)
--- a/widget/bat.lua
+++ b/widget/bat.lua
@@ -1,21 +1,17 @@
-
 --[[
 --[[
-                                                                                                                       
-        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,      Luca CPZ
+         * (c) 2010-2012, Peter Hofmann
+
 --]]
 
 --]]
 
-local first_line = require("lain.helpers").first_line
-local newtimer   = require("lain.helpers").newtimer
+local helpers    = require("lain.helpers")
+local fs         = require("gears.filesystem")
 local naughty    = require("naughty")
 local wibox      = require("wibox")
 local naughty    = require("naughty")
 local wibox      = require("wibox")
-local math       = { abs    = math.abs,
-                     floor  = math.floor,
-                     log10  = math.log10,
-                     min    = math.min }
-local string     = { format = string.format }
+local math       = math
+local string     = string
 local ipairs     = ipairs
 local tonumber   = tonumber
 
 local ipairs     = ipairs
 local tonumber   = tonumber
 
@@ -23,15 +19,35 @@ local tonumber   = tonumber
 -- lain.widget.bat
 
 local function factory(args)
 -- lain.widget.bat
 
 local function factory(args)
+    local pspath = args.pspath or "/sys/class/power_supply/"
+
+    if not fs.is_dir(pspath) then
+        naughty.notify { text = "lain.widget.bat: invalid power supply path", timeout = 0 }
+        return
+    end
+
     local bat       = { widget = wibox.widget.textbox() }
     local args      = args or {}
     local timeout   = args.timeout or 30
     local bat       = { widget = wibox.widget.textbox() }
     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 n_perc    = args.n_perc or { 5, 15 }
     local notify    = args.notify or "on"
     local n_perc    = args.n_perc or { 5, 15 }
+    local batteries = args.batteries or (args.battery and {args.battery}) or {}
+    local ac        = args.ac or "AC0"
     local settings  = args.settings or function() end
 
     local settings  = args.settings or function() end
 
+    function bat.get_batteries()
+        helpers.line_callback("ls -1 " .. pspath, function(line)
+            local bstr =  string.match(line, "BAT%w+")
+            if bstr then
+                batteries[#batteries + 1] = bstr
+            else
+                ac = string.match(line, "A%w+") or "AC0"
+            end
+        end)
+    end
+
+    if #batteries == 0 then bat.get_batteries() end
+
     bat_notification_critical_preset = {
         title   = "Battery exhausted",
         text    = "Shutdown imminent",
     bat_notification_critical_preset = {
         title   = "Battery exhausted",
         text    = "Shutdown imminent",
@@ -48,6 +64,14 @@ local function factory(args)
         bg      = "#CDCDCD"
     }
 
         bg      = "#CDCDCD"
     }
 
+    bat_notification_charged_preset = {
+        title   = "Battery full",
+        text    = "You can unplug the cable",
+        timeout = 15,
+        fg      = "#202020",
+        bg      = "#CDCDCD"
+    }
+
     bat_now = {
         status    = "N/A",
         ac_status = "N/A",
     bat_now = {
         status    = "N/A",
         ac_status = "N/A",
@@ -63,6 +87,9 @@ local function factory(args)
         bat_now.n_perc[i] = 0
     end
 
         bat_now.n_perc[i] = 0
     end
 
+    -- used to notify full charge only once before discharging
+    local fullnotification = false
+
     function bat.update()
         local sum_rate_current = 0
         local sum_rate_voltage = 0
     function bat.update()
         local sum_rate_current = 0
         local sum_rate_voltage = 0
@@ -70,30 +97,29 @@ local function factory(args)
         local sum_rate_energy  = 0
         local sum_energy_now   = 0
         local sum_energy_full  = 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
 
         for i, battery in ipairs(batteries) do
             local bstr    = pspath .. battery
-            local present = first_line(bstr .. "/present")
+            local present = helpers.first_line(bstr .. "/present")
 
             if tonumber(present) == 1 then
                 -- current_now(I)[uA], voltage_now(U)[uV], power_now(P)[uW]
 
             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"))
+                local rate_current = tonumber(helpers.first_line(bstr .. "/current_now"))
+                local rate_voltage = tonumber(helpers.first_line(bstr .. "/voltage_now"))
+                local rate_power   = tonumber(helpers.first_line(bstr .. "/power_now"))
 
                 -- energy_now(P)[uWh], charge_now(I)[uAh]
 
                 -- energy_now(P)[uWh], charge_now(I)[uAh]
-                local energy_now        = tonumber(first_line(bstr .. "/energy_now") or
-                                          first_line(bstr .. "/charge_now"))
+                local energy_now = tonumber(helpers.first_line(bstr .. "/energy_now") or
+                                   helpers.first_line(bstr .. "/charge_now"))
 
                 -- energy_full(P)[uWh], charge_full(I)[uAh]
 
                 -- 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_full = tonumber(helpers.first_line(bstr .. "/energy_full") or
+                                    helpers.first_line(bstr .. "/charge_full"))
 
 
-                local energy_percentage = tonumber(first_line(bstr .. "/capacity")) or
+                local energy_percentage = tonumber(helpers.first_line(bstr .. "/capacity")) or
                                           math.floor((energy_now / energy_full) * 100)
 
                                           math.floor((energy_now / energy_full) * 100)
 
-                bat_now.n_status[i] = first_line(bstr .. "/status") or "N/A"
+                bat_now.n_status[i] = helpers.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)
                 bat_now.n_perc[i]   = energy_percentage or bat_now.n_perc[i]
 
                 sum_rate_current = sum_rate_current + (rate_current or 0)
@@ -115,7 +141,7 @@ local function factory(args)
                 bat_now.status = status
             end
         end
                 bat_now.status = status
             end
         end
-        bat_now.ac_status = tonumber(first_line(string.format("%s%s/online", pspath, ac))) or "N/A"
+        bat_now.ac_status = tonumber(helpers.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
 
         if bat_now.status ~= "N/A" then
             if bat_now.status ~= "Full" and sum_rate_power == 0 and bat_now.ac_status == 1 then
@@ -157,23 +183,32 @@ local function factory(args)
         widget = bat.widget
         settings()
 
         widget = bat.widget
         settings()
 
-        -- notifications for critical and low levels
-        if notify == "on" and bat_now.status == "Discharging" then
-            if tonumber(bat_now.perc) <= n_perc[1] then
-                bat.id = naughty.notify({
-                    preset = bat_notification_critical_preset,
-                    replaces_id = bat.id
-                }).id
-            elseif tonumber(bat_now.perc) <= n_perc[2] then
+        -- notifications for critical, low, and full levels
+        if notify == "on" then
+            if bat_now.status == "Discharging" then
+                if tonumber(bat_now.perc) <= n_perc[1] then
+                    bat.id = naughty.notify({
+                        preset = bat_notification_critical_preset,
+                        replaces_id = bat.id
+                    }).id
+                elseif tonumber(bat_now.perc) <= n_perc[2] then
+                    bat.id = naughty.notify({
+                        preset = bat_notification_low_preset,
+                        replaces_id = bat.id
+                    }).id
+                end
+                fullnotification = false
+            elseif bat_now.status == "Full" and not fullnotification then
                 bat.id = naughty.notify({
                 bat.id = naughty.notify({
-                    preset = bat_notification_low_preset,
+                    preset = bat_notification_charged_preset,
                     replaces_id = bat.id
                 }).id
                     replaces_id = bat.id
                 }).id
+                fullnotification = true
             end
         end
     end
 
             end
         end
     end
 
-    newtimer("batteries", timeout, bat.update)
+    helpers.newtimer("batteries", timeout, bat.update)
 
     return bat
 end
 
     return bat
 end
awesome window-manager configuration

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