Inserts random tooltip text.

src/Plugin/Field/FieldFormatter/TooltipTextFormatter.php

@@ -4,6 +4,7 @@
 namespace Drupal\cdesai_tff\Plugin\Field\FieldFormatter;
 
 use Drupal\cdesai_tff\DesaiTextFormatterBase;
+use Drupal\Component\Utility\Random;
 use Drupal\Core\Field\FieldItemInterface;
 use Drupal\Core\Field\FieldItemListInterface;
 
@@ -21,6 +22,8 @@ use Drupal\Core\Field\FieldItemListInterface;
  */
 class TooltipTextFormatter extends DesaiTextFormatterBase {
 
+  private static $MIN_WORDS = 7;
+
   /**
    * @inheritDoc
    */
@@ -33,12 +36,14 @@ class TooltipTextFormatter extends DesaiTextFormatterBase {
    */
   public function viewElements(FieldItemListInterface $items, $langcode) {
     $elements = [];
+    $random = new Random();
     foreach ($items as $delta => $item) {
       $elements[$delta] = [
         '#theme' => 'cdesai_tff_tooltip_formatter',
         '#value' => $this->getValue($item),
         '#attributes' => [
           'class' => [$this->getCssClassId()],
+          'data-tooltip' => $random->sentences(self::$MIN_WORDS),
         ],
       ];
     }