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<?php
namespace Drupal\commerce\Plugin\Field\FieldWidget;
use Drupal\commerce\InlineFormManager;
use Drupal\Component\Plugin\PluginManagerInterface;
use Drupal\Component\Utility\Html;
use Drupal\Component\Utility\NestedArray;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Field\WidgetBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Drupal\Core\Plugin\PluginFormInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
class PluginSelectWidget extends WidgetBase implements ContainerFactoryPluginInterface {
protected $pluginManager;
protected $inlineFormManager;
public function __construct($plugin_id, $plugin_definition, FieldDefinitionInterface $field_definition, array $settings, array $third_party_settings, PluginManagerInterface $plugin_manager, InlineFormManager $inline_form_manager) {
parent::__construct($plugin_id, $plugin_definition, $field_definition, $settings, $third_party_settings);
$this->pluginManager = $plugin_manager;
$this->inlineFormManager = $inline_form_manager;
}
public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
list(, $plugin_type) = explode(':', $configuration['field_definition']
->getType());
return new static($plugin_id, $plugin_definition, $configuration['field_definition'], $configuration['settings'], $configuration['third_party_settings'], $container
->get('plugin.manager.' . $plugin_type), $container
->get('plugin.manager.commerce_inline_form'));
}
public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
list(, $plugin_type) = explode(':', $this->fieldDefinition
->getType());
$definitions = $this->pluginManager
->getDefinitions();
$plugins = array_map(static function ($definition) {
return $definition['label'];
}, $definitions);
asort($plugins);
$target_plugin_id_parents = array_merge($element['#field_parents'], [
$items
->getName(),
$delta,
'target_plugin_id',
]);
$target_plugin_id = NestedArray::getValue($form_state
->getUserInput(), $target_plugin_id_parents);
$target_plugin_configuration = [];
if ($target_plugin_id === NULL) {
$target_plugin_id = $items[$delta]->target_plugin_id;
$target_plugin_configuration = $items[$delta]->target_plugin_configuration ?: [];
}
if (!$target_plugin_id && $this->fieldDefinition
->isRequired()) {
$plugin_ids = array_keys($plugins);
$target_plugin_id = reset($plugin_ids);
}
$ajax_wrapper_id = Html::getUniqueId('ajax-wrapper');
$element = [
'#type' => 'container',
'#tree' => TRUE,
'#prefix' => '<div id="' . $ajax_wrapper_id . '">',
'#suffix' => '</div>',
] + $element;
$element['target_plugin_id'] = [
'#type' => 'select',
'#title' => $this->fieldDefinition
->getLabel(),
'#options' => $plugins,
'#default_value' => $target_plugin_id,
'#required' => $this->fieldDefinition
->isRequired(),
];
if (!$element['target_plugin_id']['#required']) {
$element['target_plugin_id']['#empty_value'] = '';
}
if (self::supportsConfiguration($definitions)) {
$element['target_plugin_id']['#ajax'] = [
'callback' => [
get_class($this),
'ajaxRefresh',
],
'wrapper' => $ajax_wrapper_id,
];
if ($target_plugin_id !== NULL) {
$inline_form = $this->inlineFormManager
->createInstance('plugin_configuration', [
'plugin_type' => $plugin_type,
'plugin_id' => $target_plugin_id,
'plugin_configuration' => $target_plugin_configuration,
]);
$element['target_plugin_configuration']['#inline_form'] = $inline_form;
$element['target_plugin_configuration']['#parents'] = array_merge($element['#field_parents'], [
$items
->getName(),
$delta,
'target_plugin_configuration',
]);
$element['target_plugin_configuration'] = $inline_form
->buildInlineForm($element['target_plugin_configuration'], $form_state);
}
}
return $element;
}
protected static function supportsConfiguration(array $definitions) {
$definition = reset($definitions);
return is_subclass_of($definition['class'], PluginFormInterface::class);
}
public static function ajaxRefresh(&$form, FormStateInterface $form_state) {
$element_parents = array_slice($form_state
->getTriggeringElement()['#array_parents'], 0, -1);
return NestedArray::getValue($form, $element_parents);
}
}