--- a/ui/cocoa/text.h	Wed Apr 22 10:07:54 2026 +0200
+++ b/ui/cocoa/text.h	Wed Apr 22 19:29:26 2026 +0200
@@ -47,3 +47,15 @@
 
 char* ui_textfield_get(UiString *s);
 void ui_textfield_set(UiString *s, const char *value);
+
+@interface TextFieldDelegate : NSObject<NSTextFieldDelegate>
+
+@property UiObject *obj;
+@property UiVar *var;
+@property ui_callback onchange;
+@property void *onchangedata;
+@property NSString *onchange_action;
+
+- (id)init:(UiObject*)obj var:(UiVar*)var;
+
+@end