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<?php
namespace Drupal\Core\Field\Plugin\Field\FieldFormatter;
use Drupal\Core\Field\FormatterBase;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Form\FormStateInterface;
class BooleanFormatter extends FormatterBase {
public static function defaultSettings() {
$settings = [];
$settings['format'] = 'default';
$settings['format_custom_false'] = '';
$settings['format_custom_true'] = '';
return $settings;
}
protected function getOutputFormats() {
$formats = [
'default' => [
$this
->getFieldSetting('on_label'),
$this
->getFieldSetting('off_label'),
],
'yes-no' => [
$this
->t('Yes'),
$this
->t('No'),
],
'true-false' => [
$this
->t('True'),
$this
->t('False'),
],
'on-off' => [
$this
->t('On'),
$this
->t('Off'),
],
'enabled-disabled' => [
$this
->t('Enabled'),
$this
->t('Disabled'),
],
'boolean' => [
1,
0,
],
'unicode-yes-no' => [
'✔',
'✖',
],
'custom' => $this
->t('Custom'),
];
return $formats;
}
public function settingsForm(array $form, FormStateInterface $form_state) {
$form = parent::settingsForm($form, $form_state);
$formats = [];
foreach ($this
->getOutputFormats() as $format_name => $format) {
if (is_array($format)) {
if ($format_name == 'default') {
$formats[$format_name] = $this
->t('Field settings (@on_label / @off_label)', [
'@on_label' => $format[0],
'@off_label' => $format[1],
]);
}
else {
$formats[$format_name] = $this
->t('@on_label / @off_label', [
'@on_label' => $format[0],
'@off_label' => $format[1],
]);
}
}
else {
$formats[$format_name] = $format;
}
}
$field_name = $this->fieldDefinition
->getName();
$form['format'] = [
'#type' => 'select',
'#title' => $this
->t('Output format'),
'#default_value' => $this
->getSetting('format'),
'#options' => $formats,
];
$form['format_custom_true'] = [
'#type' => 'textfield',
'#title' => $this
->t('Custom output for TRUE'),
'#default_value' => $this
->getSetting('format_custom_true'),
'#states' => [
'visible' => [
'select[name="fields[' . $field_name . '][settings_edit_form][settings][format]"]' => [
'value' => 'custom',
],
],
],
];
$form['format_custom_false'] = [
'#type' => 'textfield',
'#title' => $this
->t('Custom output for FALSE'),
'#default_value' => $this
->getSetting('format_custom_false'),
'#states' => [
'visible' => [
'select[name="fields[' . $field_name . '][settings_edit_form][settings][format]"]' => [
'value' => 'custom',
],
],
],
];
return $form;
}
public function settingsSummary() {
$summary = [];
$setting = $this
->getSetting('format');
if ($setting == 'custom') {
$summary[] = $this
->t('Custom text: @true_label / @false_label', [
'@true_label' => $this
->getSetting('format_custom_true'),
'@false_label' => $this
->getSetting('format_custom_false'),
]);
}
else {
$formats = $this
->getOutputFormats();
$summary[] = $this
->t('Display: @true_label / @false_label', [
'@true_label' => $formats[$setting][0],
'@false_label' => $formats[$setting][1],
]);
}
return $summary;
}
public function viewElements(FieldItemListInterface $items, $langcode) {
$elements = [];
$formats = $this
->getOutputFormats();
foreach ($items as $delta => $item) {
$format = $this
->getSetting('format');
if ($format == 'custom') {
$elements[$delta] = [
'#markup' => $item->value ? $this
->getSetting('format_custom_true') : $this
->getSetting('format_custom_false'),
];
}
else {
$elements[$delta] = [
'#markup' => $item->value ? $formats[$format][0] : $formats[$format][1],
];
}
}
return $elements;
}
}