awesome: Add button to mute notifications to wibar

home/.config/awesome/rc.lua

@@ -207,6 +207,7 @@ awful.screen.connect_for_each_screen(function(s)
         { -- Right widgets
             layout = wibox.layout.fixed.horizontal,
             wibox.widget.systray(),
+            widgets.notifications,
             widgets.tearstop,
             widgets.redshift,
             widgets.bluetooth,

home/.config/awesome/widgets.lua

@@ -188,6 +188,22 @@ widgets.tearstop:buttons(
     )
 )
 
+widgets.notifications = wibox.widget.imagebox(iconsdir .. "notifications-on.png")
+
+widgets.notifications:buttons(
+    gtable.join(
+        awful.button({ }, 1, function()
+            if naughty.is_suspended() then
+                naughty.resume()
+                widgets.notifications:set_image(iconsdir .. "notifications-on.png")
+            else
+                naughty.suspend()
+                widgets.notifications:set_image(iconsdir .. "notifications-off.png")
+            end
+        end)
+    )
+)
+
 widgets.cal = {}
 
 widgets.cal.show = function()