Added validation rule for controller name

Author: drpayyne

src/com/magento/idea/magento2plugin/actions/generation/dialog/NewControllerDialog.java

@@ -13,6 +13,7 @@
 import com.magento.idea.magento2plugin.actions.generation.dialog.validator.annotation.FieldValidation;
 import com.magento.idea.magento2plugin.actions.generation.dialog.validator.annotation.RuleRegistry;
 import com.magento.idea.magento2plugin.actions.generation.dialog.validator.rule.AlphanumericRule;
+import com.magento.idea.magento2plugin.actions.generation.dialog.validator.rule.DirectoryRule;
 import com.magento.idea.magento2plugin.actions.generation.dialog.validator.rule.NotEmptyRule;
 import com.magento.idea.magento2plugin.actions.generation.dialog.validator.rule.PhpClassRule;
 import com.magento.idea.magento2plugin.actions.generation.dialog.validator.rule.PhpNamespaceNameRule;
@@ -65,6 +66,8 @@ public class NewControllerDialog extends AbstractDialog {
             message = {NotEmptyRule.MESSAGE, CONTROLLER_NAME})
     @FieldValidation(rule = RuleRegistry.PHP_NAMESPACE_NAME,
             message = {PhpNamespaceNameRule.MESSAGE, CONTROLLER_NAME})
+    @FieldValidation(rule = RuleRegistry.DIRECTORY,
+            message = {DirectoryRule.MESSAGE, CONTROLLER_NAME})
     private JTextField controllerName;
 
     @FieldValidation(rule = RuleRegistry.NOT_EMPTY,