mods/ITEMS/mcl_itemframes/init.lua

@@ -147,6 +147,34 @@ minetest.register_node("mcl_itemframes:item_frame",{
 	sunlight_propagates = true,
 	groups = { dig_immediate=3,deco_block=1,dig_by_piston=1,container=7 },
 	sounds = mcl_sounds.node_sound_defaults(),
+	on_place = function(itemstack, placer, pointed_thing)
+		if pointed_thing.type ~= "node" then
+			return itemstack
+		end
+
+		-- Use pointed node's on_rightclick function first, if present
+		local node = minetest.get_node(pointed_thing.under)
+		if placer and not placer:get_player_control().sneak then
+			if minetest.registered_nodes[node.name] and minetest.registered_nodes[node.name].on_rightclick then
+				return minetest.registered_nodes[node.name].on_rightclick(pointed_thing.under, node, placer, itemstack) or itemstack
+			end
+		end
+
+		if pointed_thing.above.y ~= pointed_thing.under.y then
+			return itemstack
+		end
+
+		if minetest.registered_nodes[node.name] and minetest.registered_nodes[node.name].buildable_to then
+			return itemstack
+		end
+
+		local new_itemstack, success = minetest.item_place(itemstack, placer, pointed_thing)
+		local node = minetest.get_node(pointed_thing.above)
+		node.param2 = minetest.dir_to_facedir(vector.direction(pointed_thing.above, pointed_thing.under))
+		minetest.swap_node(pointed_thing.above, node)
+
+		return new_itemstack
+	end,
 	on_construct = function(pos)
 		local meta = minetest.get_meta(pos)
 		local inv = meta:get_inventory()