Updated to Drupal 8.5. Core Media not yet in use.

[yaffs-website] / web / core / modules / layout_builder / src / Controller / AjaxHelperTrait.php

diff --git a/web/core/modules/layout_builder/src/Controller/AjaxHelperTrait.php b/web/core/modules/layout_builder/src/Controller/AjaxHelperTrait.php
new file mode 100644 (file)
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--- /dev/null
+++ b/web/core/modules/layout_builder/src/Controller/AjaxHelperTrait.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace Drupal\layout_builder\Controller;
+
+use Drupal\Core\EventSubscriber\MainContentViewSubscriber;
+
+/**
+ * Provides a helper to determine if the current request is via AJAX.
+ *
+ * @internal
+ *
+ * @todo Move to \Drupal\Core in https://www.drupal.org/node/2896535.
+ */
+trait AjaxHelperTrait {
+
+  /**
+   * Determines if the current request is via AJAX.
+   *
+   * @return bool
+   *   TRUE if the current request is via AJAX, FALSE otherwise.
+   */
+  protected function isAjax() {
+    return in_array($this->getRequestWrapperFormat(), [
+      'drupal_ajax',
+      'drupal_dialog',
+      'drupal_dialog.off_canvas',
+      'drupal_modal',
+    ]);
+  }
+
+  /**
+   * Gets the wrapper format of the current request.
+   *
+   * @string
+   *   The wrapper format.
+   */
+  protected function getRequestWrapperFormat() {
+    return \Drupal::request()->get(MainContentViewSubscriber::WRAPPER_FORMAT);
+  }
+
+}