Issue #3230463: Let other modules alter the list of available condition plugins

src/Form/ManageConditions.php

@@ -2,7 +2,7 @@
 
 namespace Drupal\ctools\Form;
 
-use Drupal\Component\Plugin\PluginManagerInterface;
+use Drupal\Core\Plugin\FilteredPluginManagerInterface;
 use Drupal\Component\Serialization\Json;
 use Drupal\Core\Ajax\AjaxResponse;
 use Drupal\Core\Ajax\OpenModalDialogCommand;
@@ -41,7 +41,7 @@ abstract class ManageConditions extends FormBase {
   }
 
 
-  public function __construct(PluginManagerInterface $manager, FormBuilderInterface $form_builder) {
+  public function __construct(FilteredPluginManagerInterface $manager, FormBuilderInterface $form_builder) {
     $this->manager = $manager;
     $this->formBuilder = $form_builder;
   }
@@ -62,7 +62,12 @@ abstract class ManageConditions extends FormBase {
     $form['#attached']['library'][] = 'core/drupal.dialog.ajax';
     $options = [];
     $contexts = $this->getContexts($cached_values);
-    foreach ($this->manager->getDefinitionsForContexts($contexts) as $plugin_id => $definition) {
+    $condition_definitions = $this->manager
+      ->getFilteredDefinitions($this->getFormId(), $contexts, [
+        'form_object' => $this,
+        'form_state' => $form_state,
+      ]);
+    foreach ($condition_definitions as $plugin_id => $definition) {
       $options[$plugin_id] = (string) $definition['label'];
     }
     $form['items'] = [