3 files changed, 25 insertions, 11 deletions
diff --git a/lang/lua/astal/gtk3/astalify.lua b/lang/lua/astal/gtk3/astalify.lua
index 95faa2c..f1a280b 100644
--- a/lang/lua/astal/gtk3/astalify.lua
+++ b/lang/lua/astal/gtk3/astalify.lua
@@ -52,15 +52,20 @@ local function includes(tbl, elem)
 end
 
 local function set_children(parent, children)
-    children = map(flatten(children), function(item)
-        if Gtk.Widget:is_type_of(item) then
-            return item
-        end
-        return Gtk.Label({
-            visible = true,
-            label = tostring(item),
-        })
-    end)
+    children = map(
+        filter(flatten(children), function(item)
+            return not not item
+        end),
+        function(item)
+            if Gtk.Widget:is_type_of(item) then
+                return item
+            end
+            return Gtk.Label({
+                visible = true,
+                label = tostring(item),
+            })
+        end
+    )
 
     -- remove
     if Gtk.Bin:is_type_of(parent) then
@@ -174,7 +179,7 @@ return function(ctor)
         end)))
 
         -- default visible to true
-        if type(tbl.visible) ~= "boolean" then
+        if tbl.visible == nil then
             tbl.visible = true
         end
 
diff --git a/lang/lua/astal/gtk3/widget.lua b/lang/lua/astal/gtk3/widget.lua
index c8857e7..654da29 100644
--- a/lang/lua/astal/gtk3/widget.lua
+++ b/lang/lua/astal/gtk3/widget.lua
@@ -19,6 +19,7 @@ local Widget = {
     Label = astalify(Gtk.Label),
     LevelBar = astalify(Astal.LevelBar),
     -- TODO: ListBox
+    MenuButton = astalify(Gtk.MenuButton),
     Overlay = astalify(Astal.Overlay),
     Revealer = astalify(Gtk.Revealer),
     Scrollable = astalify(Astal.Scrollable),
@@ -64,6 +65,12 @@ Gtk.Widget._attribute.click_through = {
     set = Astal.widget_set_click_through,
 }
 
+Gtk.Widget._attribute.action_group = {
+  set = function (self, v)
+    self:insert_action_group(v[1], v[2])
+  end
+}
+
 local no_implicit_destroy = {}
 Gtk.Widget._attribute.no_implicit_destroy = {
     get = function(self)
diff --git a/lang/lua/astal/variable.lua b/lang/lua/astal/variable.lua
index ad59a3f..5832d8a 100644
--- a/lang/lua/astal/variable.lua
+++ b/lang/lua/astal/variable.lua
@@ -260,7 +260,9 @@ function Variable.derive(deps, transform)
     local unsubs = {}
 
     for i, b in ipairs(deps) do
-        unsubs[i] = b:subscribe(update)
+        unsubs[i] = b:subscribe(function()
+            var:set(update())
+        end)
     end
 
     var.variable.on_dropped = function()