public static function ScssFontFamily::addMoreSubmit in SCSS Compiler 1.0.x

Submission handler for the "Add another item" button.

This method increments the total number of children for the element.

Parameters

array $form: The form render array.

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

File

src/Element/ScssFontFamily.php, line 57

Class

ScssFontFamily

A form element to represent font families.

Namespace

Drupal\compiler_scss\Element

Code

public static function addMoreSubmit(array $form, FormStateInterface $form_state) {

  // Check if a triggering element can be found.
  if ($element = $form_state
    ->getTriggeringElement()) {

    // Go one level up in the form, to the container.
    $parents = array_slice($element['#array_parents'], 0, -1);
    $element = NestedArray::getValue($form, $parents);

    // Increment the total number of children by 1.
    $count = $form_state
      ->get($key = "{$element['#name']}_children");
    $form_state
      ->set($key, $count + 1);
    $form_state
      ->setRebuild();
  }
}