/**
* {@inheritdoc}
*/
public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state)
{
$element = parent::formElement($items, $delta, $element, $form, $form_state);
$element['target_id']['#tags'] = TRUE;
$element['target_id']['#default_value'] = $items->referencedEntities();
return $element;
}
/**
* {@inheritdoc}
*/
public function massageFormValues(array $values, array $form, FormStateInterface $form_state) {
return parent::massageFormValues($values, $form, $form_state);
}
/**
* {@inheritdoc}
*/
protected function formMultipleElements(FieldItemListInterface $items, array &$form, FormStateInterface $form_state) {
$field_name = $this->fieldDefinition->getName();
$cardinality = $this->fieldDefinition->getFieldStorageDefinition()->getCardinality();
$parents = $form['#parents'];
// Assign a unique identifier to each widget.
$id_prefix = implode('-', array_merge($parents, [$field_name]));
$wrapper_id = Html::getUniqueId($id_prefix . '-add-more-wrapper');
$this->setWrapperId($wrapper_id);
// Load the items for form rebuilds from the field state as they might not
// be in $form_state->getValues() because of validation limitations. Also,
// they are only passed in as $items when editing existing entities.
$field_state = static::getWidgetState($parents, $field_name, $form_state);
if (isset($field_state['items'])) {
$items->setValue($field_state['items']);
}
// Lower the 'items_count' field state property in order to prevent the
// parent implementation to append an extra empty item.
if ($cardinality == FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED) {
$field_state['items_count'] = (count($items) > 1) ? count($items) - 1 : 0;
static::setWidgetState($parents, $field_name, $form_state, $field_state);
}
$elements = parent::formMultipleElements($items, $form, $form_state);
if ($elements) {
if (isset($elements['add_more'])) {
// Update the HTML wrapper ID with the one generated by us.
$elements['#prefix'] = '<div id="' . $this->getWrapperId() . '">';
$add_more_button = $elements['add_more'];
$add_more_button['#value'] = $this->t('Add item');
$add_more_button['#ajax']['callback'] = [get_class($this), 'getWidgetElementAjax'];
$add_more_button['#ajax']['wrapper'] = $this->getWrapperId();
$elements['add_more'] = [
'#type' => 'container',
'#tree' => TRUE,
'#attributes' => ['class' => ['form--inline']],
'new_item' => parent::formElement($items, -1, [], $form, $form_state),
'submit' => $add_more_button,
];
}
}
return $elements;
}
/**
* {@inheritdoc}
*/
public function form(FieldItemListInterface $items, array &$form, FormStateInterface $form_state, $get_delta = NULL)
{
$elements = parent::form($items, $form, $form_state);
// Add class to indicate preview is active.
if ($this->getSetting('preview')) {
$elements['#attributes']['class'][] = 'er-enhanced-previewing';
// Add an Edit link if UI is hidden.
if ($this->getSetting('preview_hide_ui')) {
/*
$elements['er-enhanced-edit'] = [
'#markup' => '<a class="er-enhanced-edit" style="border:1px solid red;display:none;" href="">' . t('Edit') . '</a>',
'#visible' => FALSE,
];
*/
if (count($items) < 2 && !empty($this->getSetting('preview_empty_message'))) {
$elements['er-enhanced-empty-message'] = ['#markup' => '<p class="er-enhanced-empty-message">' . $this->getSetting('preview_empty_message') . '</p>'];
}
$elements['#attributes']['class'][] = 'er-enhanced-hideui-requested';
$elements['#attached']['library'][] = 'ahs_er_enhanced/hideui';
//$elements['#attached']['drupalSettings']['ahs_er_enhanced']['hideui']['preview_empty_message'] = $this->getSetting('preview_empty_message');
}
}
return $elements;
}