function ScaleImageEffect::validateConfigurationForm

Overrides ConfigurableImageEffectBase::validateConfigurationForm

File

core/modules/image/src/Plugin/ImageEffect/ScaleImageEffect.php, line 82

Class

ScaleImageEffect

Scales an image resource.

Namespace

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.'));
  }
}