drawin: Add a property miss handler

lib/wibox/init.lua

@@ -20,7 +20,7 @@ local base = require("wibox.widget.base")
 --- This provides widget box windows. Every wibox can also be used as if it were
 -- a drawin. All drawin functions and properties are also available on wiboxes!
 -- wibox
-local wibox = { mt = {} }
+local wibox = { mt = {}, object = {} }
 wibox.layout = require("wibox.layout")
 wibox.widget = require("wibox.widget")
 wibox.drawable = require("wibox.drawable")
@@ -298,6 +298,7 @@ end
 local function new(args)
     local ret = object()
     local w = capi.drawin(args)
+
     ret.drawin = w
     ret._drawable = wibox.drawable(w.drawable, { wibox = ret },
         "wibox drawable (" .. object.modulename(3) .. ")")
@@ -348,6 +349,13 @@ function wibox.mt:__call(...)
     return new(...)
 end
 
+-- Extend the luaobject
+object.properties(capi.drawin, {
+    getter_class = wibox.object,
+    setter_class = wibox.object,
+    auto_emit    = true,
+})
+
 return setmetatable(wibox, wibox.mt)
 
 -- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80