Comply with parent

Author: moritztim

addons/form/nodes/FormLabel.gd

@@ -10,7 +10,6 @@ class_name FormLabel extends Label
 			if input != null:
 				input.gui_input.disconnect(_on_gui_input)
 			input = new_val
-			nonstandard_input = false
 			mode = mode # run setter
 			indicate_required()
 			if validate_on_input && input != null:
@@ -21,6 +20,23 @@ class_name FormLabel extends Label
 ## "The selected input is not an input according to Form.is_input() or null"
 @export var nonstandard_input := false
 
+## Validator 
+@export var validator: Validator:
+	set(new_val):
+		if validator != null && input != null:
+			if has_property(input, subject) && typeof(input[subject]) != new_val.get_type():
+				push_error("Validator must be compatible with the type of subject")
+				return
+			if input.get_theme_stylebox("normal") == null:
+				validator.style_valid = input.get_theme_stylebox("normal")
+			validator = new_val
+
+## Name of the property to validate
+@export var subject: StringName:
+	set(new_val):
+		if input == null:
+			subject = new_val
+		elif has_property(input, new_val) && (validator == null || typeof(input[new_val]) == validator.get_type()):
 ## "Input value must not be empty"
 @export var input_required := false:
 	set(new_val):

addons/form/nodes/Validators/StringValidator.gd

@@ -93,7 +93,7 @@ func _on_text_changed(
 ## Validates given text against all rules and returns validity
 func validate(
 	## Text to validate
-	subject: String
+	subject: Object
 ) -> bool:
 	super.validate(subject)
 	var _regex := RegEx.new()