public static function ImageEffectsPxPerc::valueCallback in Image Effects 8

Same name and namespace in other branches

1. 8.3 src/Element/ImageEffectsPxPerc.php \Drupal\image_effects\Element\ImageEffectsPxPerc::valueCallback()
2. 8.2 src/Element/ImageEffectsPxPerc.php \Drupal\image_effects\Element\ImageEffectsPxPerc::valueCallback()

Determines how user input is mapped to an element's #value property.

Parameters

array $element: An associative array containing the properties of the element.

mixed $input: The incoming input to populate the form element. If this is FALSE, the element's default value should be returned.

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

Return value

mixed The value to assign to the element.

Overrides FormElement::valueCallback

File

src/Element/ImageEffectsPxPerc.php, line 34

Class

ImageEffectsPxPerc

Implements a form element for a quantity either in pixels or percentage.

Namespace

Drupal\image_effects\Element

Code

public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
  if ($input !== FALSE && $input !== NULL) {
    if (empty($input['c0']['c1']['value'])) {
      return '';
    }
    if ($input['c0']['c1']['uom'] === 'perc') {
      return $input['c0']['c1']['value'] . '%';
    }
    else {
      return $input['c0']['c1']['value'];
    }
  }
  return '';
}