Overrides \Drupal\field\Plugin\Type\Widget\WidgetBase::settingsForm().
Overrides WidgetBase::settingsForm
public function settingsForm(array $form, array &$form_state) {
$element['match_operator'] = array(
'#type' => 'radios',
'#title' => t('Autocomplete matching'),
'#default_value' => $this
->getSetting('match_operator'),
'#options' => array(
'STARTS_WITH' => t('Starts with'),
'CONTAINS' => t('Contains'),
),
'#description' => t('Select the method used to collect autocomplete suggestions. Note that <em>Contains</em> can cause performance issues on sites with thousands of entities.'),
);
$element['size'] = array(
'#type' => 'number',
'#title' => t('Size of textfield'),
'#default_value' => $this
->getSetting('size'),
'#min' => 1,
'#required' => TRUE,
);
$element['placeholder'] = array(
'#type' => 'textfield',
'#title' => t('Placeholder'),
'#default_value' => $this
->getSetting('placeholder'),
'#description' => t('Text that will be shown inside the field until a value is entered. This hint is usually a sample value or a brief description of the expected format.'),
);
return $element;
}