rc: add a battery level monitor to statusbar

Consisting of:
- battery object, which is a wrapper around a sysfs dir describing a
  battery
- battery manager, which adds and removes individual batteries as they
  (dis)appear - e.g. wireless input devices, and maps them to widgets
  displayed side by side
- battery widget, which shows the status of one of the batteries;
  the widget used is derived from batteryarc [1], but heavily modified

[1] https://github.com/streetturtle/awesome-wm-widgets/

1 files changed, 10 insertions, 5 deletions

diff --git a/rc.lua b/rc.lua
index 43d5fe3..2bf47ca 100644
--- a/rc.lua
+++ b/rc.lua
@@ -16,8 +16,9 @@ local utils      = require("utils")
 local workspace  = require("workspace")
 
 -- local widgets
-local pager      = require("pager")
-local urgent_wgt = require("urgent_wgt")
+local BatteryManager = require("battery_mng")
+local pager          = require("pager")
+local urgent_wgt     = require("urgent_wgt")
 
 -- {{{ Error handling
 -- Check if awesome encountered an error during startup and fell back to
@@ -79,6 +80,8 @@ update_systray_iconsize()
 -- global, shown only on the primary screen
 local u_wgt = urgent_wgt.UrgentWidget:new()
 
+local b_mng = BatteryManager()
+
 -- Create a wibox for each screen and add it
 mywibox = {}
 mypromptbox = {}
@@ -103,12 +106,14 @@ awful.screen.connect_for_each_screen(function(s)
                       awful.button({ }, 3, function () awful.layout.inc(layouts, -1) end),
                       awful.button({ }, 4, function () awful.layout.inc(layouts, 1) end),
                       awful.button({ }, 5, function () awful.layout.inc(layouts, -1) end)))
-    local layoutbox_container = wibox.container.constraint(layoutbox, 'max', beautiful.xresources.apply_dpi(tray_icon_size))
 
     local layout_utils = wibox.layout.fixed.horizontal()
-    layout_utils:add(layoutbox_container)
+    layout_utils:add(layoutbox)
+    layout_utils:add(b_mng)
     layout_utils:add(u_wgt.widget)
 
+    local utils_bar = wibox.container.constraint(layout_utils, 'max', nil, beautiful.xresources.apply_dpi(tray_icon_size))
+
     -- Create a tasklist widget
     local pgr = pager.Pager:new(wsp, s)
 
@@ -117,7 +122,7 @@ awful.screen.connect_for_each_screen(function(s)
 
     layout_bottom:add(systray)
 
-    layout_bottom:add(layout_utils)
+    layout_bottom:add(utils_bar)
     layout_bottom:add(clock_time)
     layout_bottom:add(clock_date)