add battery widget

[dotfiles.git] / awesome / widgets / battery_widget.lua

diff --git a/awesome/widgets/battery_widget.lua b/awesome/widgets/battery_widget.lua
new file mode 100644 (file)
index 0000000..6215bab
--- /dev/null
+++ b/awesome/widgets/battery_widget.lua
@@ -0,0 +1,66 @@
+local wibox = require("wibox")
+local vicious = require("vicious")
+local naughty = require("naughty")
+local beautiful = require("beautiful")
+local pairs = pairs
+
+module("battery_widget")
+
+-- Battery (based on https://bitbucket.org/skrattaren/awesome/src/)
+
+local limits = { {25, 5},
+                 {12, 3},
+                 { 7, 1},
+                 {0}}
+
+local function getnextlim (num)
+    for ind, pair in pairs(limits) do
+        lim = pair[1]; step = pair[2]; nextlim = limits[ind+1][1] or 0
+        if num > nextlim then
+            repeat
+                lim = lim - step
+            until num > lim
+            if lim < nextlim then
+                lim = nextlim
+            end
+            return lim
+        end
+    end
+end
+
+local function batclosure ()
+    local nextlim = limits[1][1]
+    return function (_, args)
+        local prefix = "⚡"
+        local state, charge = args[1], args[2]
+        if not charge then return end
+        if state == "-" then
+            dirsign = "↓"
+            prefix = "Bat:"
+            if charge <= nextlim then
+                naughty.notify({title = "⚡ Warning! ⚡",
+                                text = "Battery has leaked most of its power ( ⚡ "
+                                        ..charge.."%)!",
+                                timeout = 7,
+                                position = "bottom_right",
+                                fg = beautiful.fg_focus,
+                                bg = beautiful.bg_focus
+                               })
+                nextlim = getnextlim(charge)
+            end
+        elseif state == "+" then
+            dirsign = "↑"
+            nextlim = limits[1][1]
+        else
+            return " ⚡ "
+        end
+        if dir ~= 0 then charge = charge.."%" end
+        return " "..prefix.." "..dirsign..charge..dirsign.." "
+    end
+end
+
+batterywidget = wibox.widget.textbox()
+vicious.register(batterywidget, vicious.widgets.bat, batclosure(),
+                    31, "BAT0")
+
+return batterywidget