Issue #3447833 by mogtofu33: Feature for dev, better ComponentValidator

Closes #3447833

modules/ui_patterns_devel/src/Component/ComponentValidator.php

+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\ui_patterns_devel\Component;
+
+use Drupal\Core\Plugin\Component;
+use Drupal\Core\Render\Component\Exception\InvalidComponentException;
+use Drupal\Core\Theme\Component\ComponentValidator as OriginalComponentValidator;
+
+/**
+ * Override validation of a component.
+ */
+final class ComponentValidator extends OriginalComponentValidator {
+
+  /**
+   * Override the component metadata validation to always pass.
+   *
+   * @param array $definition
+   *   The definition to validate.
+   * @param bool $enforce_schemas
+   *   TRUE if schema definitions are mandatory.
+   *
+   * @return bool
+   *   Always TRUE to display the error as a message.
+   */
+  public function validateDefinition(array $definition, bool $enforce_schemas): bool {
+    try {
+      parent::validateDefinition($definition, $enforce_schemas);
+    }
+    catch (InvalidComponentException $e) {
+      $component_id = $definition['id'];
+      $message = \str_replace("/n", "<br>", $e->getMessage());
+      \Drupal::messenger()->addError(\sprintf("Component: <b>%s</b><br>%s", $component_id, $message));
+    }
+
+    return TRUE;
+  }
+
+  /**
+   * Override the props provided to the component to always pass.
+   *
+   * @param array $context
+   *   The Twig context that contains the prop data.
+   * @param \Drupal\Core\Plugin\Component $component
+   *   The component to validate the props against.
+   *
+   * @return bool
+   *   Always TRUE to display the error as a message.
+   */
+  public function validateProps(array $context, Component $component): bool {
+    try {
+      parent::validateProps($context, $component);
+    }
+    catch (InvalidComponentException $e) {
+      $component_id = $component->getPluginId();
+      $message = \str_replace("/n", "<br>", $e->getMessage());
+      \Drupal::messenger()->addError(\sprintf("Component: <b>%s</b><br>%s", $component_id, $message));
+    }
+
+    return TRUE;
+  }
+
+}