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<?php
namespace Drupal\twitter_embed\Plugin\Field\FieldWidget;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Field\WidgetBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\twitter_embed\TwitterWidgetInterface;
class TwitterEmbedWidget extends WidgetBase {
public static function defaultSettings() {
return [
'size' => 60,
'placeholder' => '',
] + parent::defaultSettings();
}
public function settingsForm(array $form, FormStateInterface $form_state) {
$elements = [];
$elements['size'] = [
'#type' => 'number',
'#title' => t('Size of textfield'),
'#default_value' => $this
->getSetting('size'),
'#required' => TRUE,
'#min' => 1,
];
$elements['placeholder'] = [
'#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 $elements;
}
public function settingsSummary() {
$summary = [];
$summary[] = t('Textfield size: @size', [
'@size' => $this
->getSetting('size'),
]);
if (!empty($this
->getSetting('placeholder'))) {
$summary[] = t('Placeholder: @placeholder', [
'@placeholder' => $this
->getSetting('placeholder'),
]);
}
return $summary;
}
public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
$element['value'] = $element + [
'#type' => 'textfield',
'#default_value' => isset($items[$delta]->value) ? $items[$delta]->value : NULL,
'#size' => $this
->getSetting('size'),
'#placeholder' => $this
->getSetting('placeholder'),
'#field_prefix' => '@',
'#maxlength' => TwitterWidgetInterface::USERNAME_MAX_LENGTH,
];
return $element;
}
}