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uniform timers for single-instance widgets; #114
[etc/awesome.git] / widgets / bat.lua
diff --git a/widgets/bat.lua b/widgets/bat.lua
index 0461607c62bdc36bfc8573b4f00cfc558e4a1427..626239b14c28d2b32b6f1a9fc29d739e9cff5543 100644 (file)
--- a/widgets/bat.lua
+++ b/widgets/bat.lua
@@ -7,141 +7,143 @@
                                                   
 --]]
 
                                                   
 --]]
 
-local markup       = require("lain.util.markup")
+local newtimer     = require("lain.helpers").newtimer
 local first_line   = require("lain.helpers").first_line
 
 local first_line   = require("lain.helpers").first_line
 
-local beautiful    = require("beautiful")
 local naughty      = require("naughty")
 local wibox        = require("wibox")
 
 local math         = { floor  = math.floor }
 local string       = { format = string.format }
 local naughty      = require("naughty")
 local wibox        = require("wibox")
 
 local math         = { floor  = math.floor }
 local string       = { format = string.format }
+local tonumber     = tonumber
 
 local setmetatable = setmetatable
 
 -- Battery infos
 -- lain.widgets.bat
 
 local setmetatable = setmetatable
 
 -- Battery infos
 -- lain.widgets.bat
-local bat = {
-    status = "not present",
-    perc   = "N/A",
-    time   = "N/A",
-}
+local bat = {}
 
 
-function worker(args)
+local function worker(args)
     local args = args or {}
     local args = args or {}
+    local timeout = args.timeout or 30
     local battery = args.battery or "BAT0"
     local battery = args.battery or "BAT0"
-    local show_all = args.show_all or false
-    local refresh_timeout = args.refresh_timeout or 30
-    local header = args.header or " Bat "
-    local header_color = args.header_color or beautiful.fg_normal or "#FFFFFF"
-    local color = args.color or beautiful.fg_focus or "#FFFFFF"
-    local shadow = args.shadow or false
-
-    local mybattery = wibox.widget.textbox()
-
-    local mybatteryupdate = function()
-        local present = first_line("/sys/class/power_supply/"
-                                   .. battery
-                                   .. "/present")
+    local notify = args.notify or "on"
+    local settings = args.settings or function() end
+
+    bat.widget = wibox.widget.textbox('')
+
+    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",
+            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
 
         if present == "1"
         then
-            local rate = first_line("/sys/class/power_supply/"
-                                    .. battery ..
-                                    "/power_now")
-            local ratev = first_line("/sys/class/power_supply/"
-                                    .. battery ..
-                                     "/voltage_now")
-            local rem = first_line("/sys/class/power_supply/"
-                                    .. battery ..
-                                   "/energy_now")
-            local tot = first_line("/sys/class/power_supply/"
-                                    .. battery ..
-                                   "/energy_full")
-            bat.status = first_line("/sys/class/power_supply/"
-                                    .. battery ..
-                                   "/status")
+            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"
+
+            rate  = tonumber(rate) or 1
+            ratev = tonumber(ratev)
+            rem   = tonumber(rem)
+            tot   = tonumber(tot)
 
             local time_rat = 0
 
             local time_rat = 0
-            if bat.status == "Charging"
+            if bat_now.status == "Charging"
             then
             then
-                status = "(+)"
                 time_rat = (tot - rem) / rate
                 time_rat = (tot - rem) / rate
-            elseif bat.status == "Discharging"
+            elseif bat_now.status == "Discharging"
             then
             then
-                status = "(-)"
                 time_rat = rem / rate
                 time_rat = rem / rate
-            else
-                status = "(.)"
             end
 
             local hrs = math.floor(time_rat)
             end
 
             local hrs = math.floor(time_rat)
-            local min = (time_rat - hrs) * 60
-            bat.time = string.format("%02d:%02d", hrs, min)
+            if hrs < 0 then hrs = 0 elseif hrs > 23 then hrs = 23 end
 
 
-            local amount = (rem / tot) * 100
+            local min = math.floor((time_rat - hrs) * 60)
+            if min < 0 then min = 0 elseif min > 59 then min = 59 end
 
 
-            if shadow
-            then
-                bat.perc = string.format("%d", amount)
-            else
-                bat.perc = string.format("%d%%", amount)
-            end
+            bat_now.time = string.format("%02d:%02d", hrs, min)
 
 
-            local watt = string.format("%.2fW", (rate * ratev) / 1e12)
+            bat_now.perc = first_line(bstr .. "/capacity")
 
 
-            if show_all
-            then
-                text = watt .. " " .. bat.perc .. " " .. bat.time .. " " .. bat.status
-            else
-                text = bat.perc
+            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
             end
 
             end
 
-            -- notifications for low and critical states
-            if amount <= 5
-            then
-                naughty.notify{
-                    text = "shutdown imminent",
-                    title = "battery nearly exhausted",
-                    position = "top_right",
-                    timeout = 15,
-                    fg="#000000",
-                    bg="#ffffff",
-                    ontop = true
-                }
-            elseif amount <= 15
-            then
-                old_id = naughty.notify{
-                    text = "plug the cable",
-                    title = "battery low",
-                    position = "top_right",
-                    timeout = 5,
-                    fg="#202020",
-                    bg="#cdcdcd",
-                    ontop = true
-                }
+            if rate ~= nil and ratev ~= nil then
+                bat_now.watt = string.format("%.2fW", (rate * ratev) / 1e12)
+            else
+                bat_now.watt = "N/A"
             end
             end
-        else
-            text = "none"
+
         end
 
         end
 
-        if shadow
+        widget = bat.widget
+        settings()
+
+        -- notifications for low and critical states
+        if bat_now.status == "Discharging" and notify == "on" and bat_now.perc ~= nil
         then
         then
-            mybattery:set_text('')
-        else
-            mybattery:set_markup(markup(header_color, header)
-                                 .. markup(color, text) .. " ")
+            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
 
         end
     end
 
-    local mybatterytimer = timer({ timeout = refresh_timeout })
-    mybatterytimer:connect_signal("timeout", mybatteryupdate)
-    mybatterytimer:start()
-    mybatterytimer:emit_signal("timeout")
-
-    bat.widget = mybattery
+    newtimer(battery, timeout, update)
 
 
-    return setmetatable(bat, { __index = bat.widget })
+    return bat.widget
 end
 
 return setmetatable(bat, { __call = function(_, ...) return worker(...) end })
 end
 
 return setmetatable(bat, { __call = function(_, ...) return worker(...) end })
awesome window-manager configuration

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