--- /dev/null
+<?php
+
+namespace Drupal\Core\Ajax;
+
+/**
+ * Defines an AJAX command that sets jQuery UI dialog properties.
+ *
+ * @ingroup ajax
+ */
+class SetDialogTitleCommand extends SetDialogOptionCommand {
+
+ /**
+ * Constructs a SetDialogTitleCommand object.
+ *
+ * @param string $selector
+ * The selector of the dialog whose title will be set. If set to an empty
+ * value, the default modal dialog will be selected.
+ * @param string $title
+ * The title that will be set on the dialog.
+ */
+ public function __construct($selector, $title) {
+ $this->selector = $selector ? $selector : '#drupal-modal';
+ $this->optionName = 'title';
+ $this->optionValue = $title;
+ }
+
+}