public function StyleswitcherStyleForm::validateForm in Style Switcher 3.0.x

Same name and namespace in other branches

1. 8.2 src/Form/StyleswitcherStyleForm.php \Drupal\styleswitcher\Form\StyleswitcherStyleForm::validateForm()

Form validation handler.

Parameters

array $form: An associative array containing the structure of the form.

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

Overrides FormBase::validateForm

File

src/Form/StyleswitcherStyleForm.php, line 128

Class

StyleswitcherStyleForm

Provides a form to add/edit a style.

Namespace

Drupal\styleswitcher\Form

Code

public function validateForm(array &$form, FormStateInterface $form_state) {

  // Trim text values now, so submission handlers get them fully validated.
  // No need to trim name, because it's validated by a machine-name pattern.
  $form_state
    ->setValueForElement($form['label'], trim($form_state
    ->getValue('label')));
  $path = $form_state
    ->getValue('path');
  if ($path === '') {

    // Set the path back to NULL.
    $form_state
      ->setValueForElement($form['path'], NULL);
  }
  else {
    $path = trim($path);
    $form_state
      ->setValueForElement($form['path'], $path);
    if (!is_file($path) && !UrlHelper::isExternal($path)) {
      $form_state
        ->setErrorByName('path', $this
        ->t('Stylesheet file %path does not exist.', [
        '%path' => $path,
      ]));
    }
  }
}