@@ -17,6 +17,7 @@

  * Add callback

  */

 $GLOBALS['TL_DCA']['tl_content']['config']['onload_callback'][] = array('tl_content_eSM_slick', 'showJsLibraryHint');

+$GLOBALS['TL_DCA']['tl_content']['config']['onsubmit_callback'][] = array('tl_content_eSM_slick', 'insertEndElement');

 /**

  * Add palettes to tl_content

@@ -197,4 +198,58 @@ class tl_content_eSM_slick extends Backend

         break;

     }

   }

+

+  /**

+   * Automatically insert end element if start element ist about to be added

+   *

+   * @param DataContainer $dc

+   */

+  public function insertEndElement(\DataContainer $dc)

+  {

+    $activeRecord = $dc->activeRecord;

+    if (!$activeRecord) {

+      return;

+    }

+

+    if ($activeRecord->type === 'slickSliderStart' || $activeRecord->type === 'slickSliderSlideStart') {

+

+      // Find the next boxwrapper element

+      $nextElement = \Database::getInstance()

+        ->prepare("

+					SELECT type

+					FROM tl_content

+					WHERE pid = ?

+						AND (ptable = ? OR ptable = ?)

+            AND type IN ('slickSliderSlideStart', 'slickSliderSlideStop','slickSliderStart', 'slickSliderStop')

+						AND sorting > ?

+					ORDER BY sorting ASC

+					LIMIT 1

+				")

+        ->execute(

+          $activeRecord->pid,

+          $activeRecord->ptable ?: 'tl_article',

+          $activeRecord->ptable === 'tl_article' ? '' : $activeRecord->ptable,

+          $activeRecord->sorting

+        );

+

+      // Check if a stop element should be created

+      if (

+        !$nextElement->type

+        || ($activeRecord->type === 'slickSliderStart' && ($nextElement->type === 'slickSliderSlideStart' || $nextElement->type === 'slickSliderSlideStop' || $nextElement->type === 'slickSliderStart'))

+        || ($activeRecord->type === 'slickSliderSlideStart' && ($nextElement->type === 'slickSliderSlideStart' || $nextElement->type === 'slickSliderStart' || $nextElement->type === 'slickSliderStop'))

+      ) {

+        \Database::getInstance()

+          ->prepare('INSERT INTO tl_content %s')

+          ->set(array(

+            'pid' => $activeRecord->pid,

+            'ptable' => $activeRecord->ptable ?: 'tl_article',

+            'type' => substr($activeRecord->type, 0, -5) . 'Stop',

+            'sorting' => $activeRecord->sorting + 1,

+            'tstamp' => time(),

+          ))

+          ->execute();

+      }

+

+    }

+  }

 }

\ No newline at end of file