feat: Add FieldClass::factory($props) helper

Author: distantnative

src/Form/Field.php

@@ -279,10 +279,11 @@ public static function factory(
 	): static|FieldClass {
 		$field = static::$types[$type] ?? null;
 
-		if (is_string($field) && class_exists($field) === true) {
-			$attrs['siblings'] = $siblings;
-			unset($attrs['type']);
-			return new $field(...$attrs);
+		if (
+			is_string($field) &&
+			is_subclass_of($field, FieldClass::class) === true
+		) {
+			return $field::factory($attrs, $siblings);
 		}
 
 		return new static($type, $attrs, $siblings);

src/Form/FieldClass.php

@@ -106,6 +106,19 @@ public function drawers(): array
 		return [];
 	}
 
+	/**
+	 * Creates a new field instance from a $props array
+	 * @since 6.0.0
+	 */
+	public static function factory(
+		array $props,
+		Fields|null $siblings = null
+	): static {
+		$props['siblings'] = $siblings;
+		unset($props['type']);
+		return new static(...$props);
+	}
+
 	public function id(): string
 	{
 		return $this->name();