Drupal 8.0.0 beta 12. More info: https://www.drupal.org/node/2514176

core/modules/quickedit/src/Ajax/BaseCommand.php

@@ -0,0 +1,54 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\quickedit\Ajax\BaseCommand.
+ */
+
+namespace Drupal\quickedit\Ajax;
+
+use Drupal\Core\Ajax\CommandInterface;
+
+/**
+ * Base command that only exists to simplify Quick Edit's actual AJAX commands.
+ */
+class BaseCommand implements CommandInterface {
+
+  /**
+   * The name of the command.
+   *
+   * @var string
+   */
+  protected $command;
+
+  /**
+   * The data to pass on to the client side.
+   *
+   * @var string
+   */
+  protected $data;
+
+  /**
+   * Constructs a BaseCommand object.
+   *
+   * @param string $command
+   *   The name of the command.
+   * @param string $data
+   *   The data to pass on to the client side.
+   */
+  public function __construct($command, $data) {
+    $this->command = $command;
+    $this->data = $data;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function render() {
+    return array(
+      'command' => $this->command,
+      'data' => $this->data,
+    );
+  }
+
+}