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diff --git a/web/modules/contrib/linkit/src/Element/Linkit.php b/web/modules/contrib/linkit/src/Element/Linkit.php
new file mode 100644
index 000000000..25e9a0f4f
--- /dev/null
+++ b/web/modules/contrib/linkit/src/Element/Linkit.php
@@ -0,0 +1,108 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\linkit\Element\Linkit.
+ */
+
+namespace Drupal\linkit\Element;
+
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Render\BubbleableMetadata;
+use Drupal\Core\Render\Element;
+use Drupal\Core\Render\Element\FormElement;
+use Drupal\Core\Render\Element\Textfield;
+use Drupal\Core\Url;
+
+/**
+ * Provides a form element for linkit.
+ *
+ * @FormElement("linkit")
+ */
+class Linkit extends FormElement {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getInfo() {
+    $class = get_class($this);
+    return array(
+      '#input' => TRUE,
+      '#size' => 60,
+      '#process' => array(
+        array($class, 'processLinkitAutocomplete'),
+        array($class, 'processGroup'),
+      ),
+      '#pre_render' => array(
+        array($class, 'preRenderLinkitElement'),
+        array($class, 'preRenderGroup'),
+      ),
+      '#theme' => 'input__textfield',
+      '#theme_wrappers' => array('form_element'),
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
+    return Textfield::valueCallback($element, $input, $form_state);
+  }
+
+  /**
+   * Adds linkit custom autocomplete functionality to elements.
+   *
+   * Instead of using the core autocomplete, we use our own.
+   *
+   * {@inheritdoc}
+   *
+   * @see \Drupal\Core\Render\Element\FormElement::processAutocomplete
+   */
+  public static function processLinkitAutocomplete(&$element, FormStateInterface $form_state, &$complete_form) {
+    $url = NULL;
+    $access = FALSE;
+
+    if (!empty($element['#autocomplete_route_name'])) {
+      $parameters = isset($element['#autocomplete_route_parameters']) ? $element['#autocomplete_route_parameters'] : array();
+      $url = Url::fromRoute($element['#autocomplete_route_name'], $parameters)->toString(TRUE);
+      /** @var \Drupal\Core\Access\AccessManagerInterface $access_manager */
+      $access_manager = \Drupal::service('access_manager');
+      $access = $access_manager->checkNamedRoute($element['#autocomplete_route_name'], $parameters, \Drupal::currentUser(), TRUE);
+    }
+
+    if ($access) {
+      $metadata = BubbleableMetadata::createFromRenderArray($element);
+      if ($access->isAllowed()) {
+        $element['#attributes']['class'][] = 'form-linkit-autocomplete';
+        $metadata->addAttachments(['library' => ['linkit/linkit.autocomplete']]);
+        // Provide a data attribute for the JavaScript behavior to bind to.
+        $element['#attributes']['data-autocomplete-path'] = $url->getGeneratedUrl();
+        $metadata = $metadata->merge($url);
+      }
+      $metadata
+        ->merge(BubbleableMetadata::createFromObject($access))
+        ->applyTo($element);
+    }
+
+    return $element;
+  }
+
+  /**
+   * Prepares a #type 'linkit' render element for input.html.twig.
+   *
+   * @param array $element
+   *   An associative array containing the properties of the element.
+   *   Properties used: #title, #value, #description, #size, #attributes.
+   *
+   * @return array
+   *   The $element with prepared variables ready for input.html.twig.
+   */
+  public static function preRenderLinkitElement($element) {
+    $element['#attributes']['type'] = 'text';
+    Element::setAttributes($element, array('id', 'name', 'value', 'size'));
+    static::setAttributes($element, array('form-text'));
+
+    return $element;
+  }
+
+}