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<?php
namespace Drupal\gathercontent_ui\Plugin\Field\FieldWidget;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Field\WidgetBase;
use Drupal\Core\Form\FormStateInterface;
class SelectOtherWidget extends WidgetBase {
public static function defaultSettings() {
return [
'available_options' => '',
] + parent::defaultSettings();
}
public function settingsForm(array $form, FormStateInterface $form_state) {
$element['available_options'] = [
'#type' => 'textarea',
'#title' => t('Available options'),
'#description' => t('A list of values that are, by default, available for selection. Enter one value per line, in the format key|label. The key is the value that will be stored in the database, and the label is what will be displayed to the user.'),
'#default_value' => $this
->getSetting('available_options'),
];
return $element;
}
public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
$options = $this
->prepareOptions();
$default_value = NULL;
if (isset($items[$delta]->value)) {
if (isset($options[$items[$delta]->value])) {
$default_value = $items[$delta]->value;
}
else {
$default_value = 'other';
}
}
$element['select'] = $element + [
'#type' => 'radios',
'#options' => $options,
'#default_value' => $default_value,
];
$element['other'] = [
'#type' => 'textfield',
'#size' => 60,
'#default_value' => isset($items[$delta]->value) && !isset($options[$items[$delta]->value]) ? $items[$delta]->value : '',
];
return $element;
}
protected function prepareOptions() {
$list = explode("\n", $this
->getSetting('available_options'));
$options = [];
foreach ($list as $item) {
list($key, $value) = explode('|', $item);
$value = html_entity_decode($value);
$options[$key] = $value;
}
return $options + [
'other' => $this
->t('Other'),
];
}
public function massageFormValues(array $values, array $form, FormStateInterface $form_state) {
$new_values = [];
foreach ($values as $value) {
if ($value['select'] === 'other') {
$new_values[] = [
'value' => $value['other'],
];
}
else {
$new_values[] = [
'value' => $value['select'],
];
}
}
return $new_values;
}
}