merge and resolve conflicts from #134; #114

[etc/awesome.git] / widgets / bat.lua

diff --git a/widgets/bat.lua b/widgets/bat.lua
index aa896407231bb28730317fcd7582ab8f8b66114b..d18af87b35001ab4021627fc74e451902e283a8b 100644 (file)
--- a/widgets/bat.lua
+++ b/widgets/bat.lua
@@ -7,9 +7,7 @@
                                                   
 --]]
 
-local newtimer     = require("lain.helpers").newtimer
-local first_line   = require("lain.helpers").first_line
-
+local helpers      = require("lain.helpers")
 local naughty      = require("naughty")
 local wibox        = require("wibox")
 
@@ -21,16 +19,38 @@ local setmetatable = setmetatable
 
 -- Battery infos
 -- lain.widgets.bat
-local bat = {}
 
 local function worker(args)
+    local bat = {}
     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('')
 
+    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"
+    }
+
+    helpers.set_map(battery .. "status", "N/A")
+    helpers.set_map(battery .. "perc", "N/A")
+    helpers.set_map(battery .. "time", "N/A")
+    helpers.set_map(battery .. "watt", "N/A")
+
     function update()
         bat_now = {
             status = "Not present",
@@ -41,24 +61,24 @@ local function worker(args)
 
         local bstr  = "/sys/class/power_supply/" .. battery
 
-        local present = first_line(bstr .. "/present")
+        local present = helpers.first_line(bstr .. "/present")
 
         if present == "1"
         then
-            local rate  = first_line(bstr .. "/power_now") or
-                          first_line(bstr .. "/current_now")
+            local rate  = helpers.first_line(bstr .. "/power_now") or
+                          helpers.first_line(bstr .. "/current_now")
 
-            local ratev = first_line(bstr .. "/voltage_now")
+            local ratev = helpers.first_line(bstr .. "/voltage_now")
 
-            local rem   = first_line(bstr .. "/energy_now") or
-                          first_line(bstr .. "/charge_now")
+            local rem   = helpers.first_line(bstr .. "/energy_now") or
+                          helpers.first_line(bstr .. "/charge_now")
 
-            local tot   = first_line(bstr .. "/energy_full") or
-                          first_line(bstr .. "/charge_full")
+            local tot   = helpers.first_line(bstr .. "/energy_full") or
+                          helpers.first_line(bstr .. "/charge_full")
 
-            bat_now.status = first_line(bstr .. "/status") or "N/A"
+            bat_now.status = helpers.first_line(bstr .. "/status") or "N/A"
 
-            rate  = tonumber(rate)
+            rate  = tonumber(rate) or 1
             ratev = tonumber(ratev)
             rem   = tonumber(rem)
             tot   = tonumber(tot)
@@ -79,45 +99,62 @@ local function worker(args)
             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 = string.format("%d", (rem / tot) * 100)
-            bat_now.watt = string.format("%.2fW", (rate * ratev) / 1e12)
 
-            -- notifications for low and critical states
-            if bat_now.status == "Discharging"
-            then
-                if tonumber(bat_now.perc) <= 5
-                then
-                    bat.id = naughty.notify({
-                        text = "shutdown imminent",
-                        title = "battery nearly exhausted",
-                        position = "top_right",
-                        timeout = 15,
-                        fg="#000000",
-                        bg="#ffffff",
-                        ontop = true,
-                        replaces_id = bat.id
-                    }).id
-                elseif tonumber(bat_now.perc) <= 15
-                then
-                    bat.id = naughty.notify({
-                        text = "plug the cable",
-                        title = "battery low",
-                        position = "top_right",
-                        timeout = 15,
-                        fg="#202020",
-                        bg="#cdcdcd",
-                        ontop = true,
-                        replaces_id = bat.id
-                    }).id
+            bat_now.perc = helpers.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
             end
+
+            if rate ~= nil and ratev ~= nil then
+                bat_now.watt = string.format("%.2fW", (rate * ratev) / 1e12)
+            else
+                bat_now.watt = "N/A"
+            end
         end
 
-        widget = bat.widget
-        settings()
+        if bat_now.status ~= helpers.get_map(battery .. "status")
+           or bat_now.perc ~= helpers.get_map(battery .. "perc")
+           or bat_now.time ~= helpers.get_map(battery .. "time")
+           or bat_now.watt ~= helpers.get_map(battery .. "watt")
+        then
+            widget = bat.widget
+            settings()
+
+            helpers.set_map(battery .. "status", bat_now.status)
+            helpers.set_map(battery .. "perc", bat_now.perc)
+            helpers.set_map(battery .. "time", bat_now.time)
+            helpers.set_map(battery .. "watt", bat_now.watt)
+        end
+
+        -- 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
+                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("bat", timeout, update)
+    helpers.newtimer(battery, timeout, update)
 
     return bat.widget
 end