add obs scene list node

classes/deck/nodes/obs_scene_list.gd

@@ -0,0 +1,49 @@
+extends DeckNode
+
+var noobs: NoOBSWS
+
+func _init() -> void:
+	name = "Scene Selector"
+	node_type = "obs_scene_list"
+	description = ""
+	category = "obs"
+
+	props_to_serialize = []
+
+	add_output_port(
+		DeckType.Types.STRING,
+		"Select a scene",
+		"singlechoice"
+	)
+
+	add_virtual_port(
+		DeckType.Types.BOOL,
+		"Refresh",
+		"button"
+	)
+
+
+func _receive(on_virtual_port: int, data: Variant, extra_data: Array = []) -> void:
+	if on_virtual_port != 0:
+		return
+
+	if noobs == null:
+		noobs = Connections.obs_websocket
+
+	var items: Array
+	var req := noobs.make_generic_request("GetSceneList")
+	await req.response_received
+	items = req.message.response_data.scenes
+	var new_desc := "singlechoice"
+	for scene in items:
+		new_desc += ":" + scene.sceneName
+	new_desc.trim_suffix(":")
+	get_output_ports()[0].descriptor = new_desc
+	ports_updated.emit()
+
+
+func _value_request(on_input_port: int) -> Variant:
+	if ports[0].value != null:
+		return ports[0].value
+
+	return null

classes/deck/port.gd

@@ -48,4 +48,8 @@ func _init(
 
 
 func set_value(v: Variant) -> void:
+	if v is Callable:
+		value = v.call()
+		return
+
 	value = v