Create API to add and remove VisualScript custom nodes

This makes a VisualScriptEditor singleton, which gives plugins the
ability to register their own custom nodes. Those will be available for
insertion in the Visual Script editor, under the "Custom Nodes"
category.

1 files changed, 23 insertions, 0 deletions

diff --git a/modules/visual_script/visual_script_editor.h b/modules/visual_script/visual_script_editor.h
index db54d1030..3d037e82e 100644
--- a/modules/visual_script/visual_script_editor.h
+++ b/modules/visual_script/visual_script_editor.h
@@ -278,6 +278,29 @@ public:
 	VisualScriptEditor();
 	~VisualScriptEditor();
 };
+
+// Singleton
+class _VisualScriptEditor : public Object {
+	GDCLASS(_VisualScriptEditor, Object);
+
+	friend class VisualScriptLanguage;
+
+protected:
+	static void _bind_methods();
+	static _VisualScriptEditor *singleton;
+
+	static Map<String, RefPtr> custom_nodes;
+	static Ref<VisualScriptNode> create_node_custom(const String &p_name);
+
+public:
+	static _VisualScriptEditor *get_singleton() { return singleton; }
+
+	void add_custom_node(const String &p_name, const String &p_category, const Ref<Script> &p_script);
+	void remove_custom_node(const String &p_name, const String &p_category);
+
+	_VisualScriptEditor();
+	~_VisualScriptEditor();
+};
 #endif
 
 #endif // VISUALSCRIPT_EDITOR_H