public function ScaleImageEffect::validateConfigurationForm in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/image/src/Plugin/ImageEffect/ScaleImageEffect.php \Drupal\image\Plugin\ImageEffect\ScaleImageEffect::validateConfigurationForm()

Form validation handler.

Parameters

array $form: An associative array containing the structure of the plugin form as built by static::buildConfigurationForm().

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form. Calling code should pass on a subform state created through \Drupal\Core\Form\SubformState::createForSubform().

Overrides ConfigurableImageEffectBase::validateConfigurationForm

File

core/modules/image/src/Plugin/ImageEffect/ScaleImageEffect.php, line 81

Class

ScaleImageEffect

Scales an image resource.

Namespace

Drupal\image\Plugin\ImageEffect

Code

public function validateConfigurationForm(array &$form, FormStateInterface $form_state) {
  parent::validateConfigurationForm($form, $form_state);
  if ($form_state
    ->isValueEmpty('width') && $form_state
    ->isValueEmpty('height')) {
    $form_state
      ->setErrorByName('data', $this
      ->t('Width and height can not both be blank.'));
  }
}