Add bluetooth control widget

bluetooth.lua

@@ -0,0 +1,75 @@
+-- https://github.com/WillPower3309/awesome-dotfiles/blob/185684bf4946702104aadc5e64ca7a9e724d3fcc/awesome/widgets/bluetooth.lua
+-- https://github.com/Mofiqul/awesome-shell/search?q=bluetooth
+-- Requires bluetoothctl program being installed.
+
+local awful = require("awful")
+local watch = require("awful.widget.watch")
+local wibox = require("wibox")
+local gears = require("gears")
+
+local is_on
+local icon_dis
+local icon_enab
+
+local widget = wibox.widget {
+   {
+      id = "icon",
+      widget = wibox.widget.imagebox,
+      resize = true
+   },
+   layout = wibox.layout.align.horizontal
+}
+
+widget:buttons(awful.util.table.join(
+    awful.button({}, 1, nil, function()
+        if is_on then
+            awful.util.spawn_with_shell("bluetoothctl power off")
+        else
+            awful.util.spawn_with_shell("bluetoothctl power on")
+        end
+    end
+    )
+))
+
+-- Add icons vor various BT states.
+-- These icons should come as beautiful.icons
+function widget.set_icons(disabled, enabled)
+    icon_dis = disabled
+    icon_enab = enabled
+end
+
+awful.tooltip(
+   {
+      objects = { widget },
+      mode = "outside",
+      align = "right",
+      fg = "white",
+      timer_function = function()
+         if is_on then
+            return "Bluetooth is on"
+         else
+            return "Bluetooth is off"
+         end
+      end,
+      preferred_positions = {"right", "left", "top", "bottom"}
+   }
+)
+
+watch("bluetoothctl show", 5,
+    function(_, stdout)
+        -- Check if there  bluetooth
+        local checker = stdout:match("Powered: yes") -- If 'Powered: yes' string is detected on stdout
+        local widget_icon_nme
+        if (checker ~= nil) then
+            is_on = true
+            widget.icon:set_image(icon_enab)
+        else
+            is_on = false
+            widget.icon:set_image(icon_dis)
+        end
+        collectgarbage("collect")
+    end,
+    widget
+)
+
+return widget