--- /dev/null
+<?php
+
+namespace Drupal\editor\Ajax;
+
+use Drupal\Core\Ajax\CommandInterface;
+
+/**
+ * Provides an AJAX command for saving the contents of an editor dialog.
+ *
+ * This command is implemented in editor.dialog.js in
+ * Drupal.AjaxCommands.prototype.editorDialogSave.
+ */
+class EditorDialogSave implements CommandInterface {
+
+ /**
+ * An array of values that will be passed back to the editor by the dialog.
+ *
+ * @var string
+ */
+ protected $values;
+
+ /**
+ * Constructs a EditorDialogSave object.
+ *
+ * @param string $values
+ * The values that should be passed to the form constructor in Drupal.
+ */
+ public function __construct($values) {
+ $this->values = $values;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function render() {
+ return [
+ 'command' => 'editorDialogSave',
+ 'values' => $this->values,
+ ];
+ }
+
+}