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<?php
namespace Drupal\search\Form;
use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Render\RendererInterface;
use Drupal\search\SearchPageRepositoryInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Builds the search form for the search block.
*/
class SearchBlockForm extends FormBase {
/**
* The search page repository.
*
* @var \Drupal\search\SearchPageRepositoryInterface
*/
protected $searchPageRepository;
/**
* The config factory.
*
* @var \Drupal\Core\Config\ConfigFactoryInterface
*/
protected $configFactory;
/**
* The renderer.
*
* @var \Drupal\Core\Render\RendererInterface
*/
protected $renderer;
/**
* Constructs a new SearchBlockForm.
*
* @param \Drupal\search\SearchPageRepositoryInterface $search_page_repository
* The search page repository.
* @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
* The config factory.
* @param \Drupal\Core\Render\RendererInterface $renderer
* The renderer.
*/
public function __construct(SearchPageRepositoryInterface $search_page_repository, ConfigFactoryInterface $config_factory, RendererInterface $renderer) {
$this->searchPageRepository = $search_page_repository;
$this->configFactory = $config_factory;
$this->renderer = $renderer;
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container) {
return new static(
$container->get('search.search_page_repository'),
$container->get('config.factory'),
$container->get('renderer')
);
}
/**
* {@inheritdoc}
*/
public function getFormId() {
return 'search_block_form';
}
/**
* {@inheritdoc}
*/
public function buildForm(array $form, FormStateInterface $form_state) {
// Set up the form to submit using GET to the correct search page.
$entity_id = $this->searchPageRepository->getDefaultSearchPage();
// SearchPageRepository::getDefaultSearchPage() depends on search.settings.
// The dependency needs to be added before the conditional return, otherwise
// the block would get cached without the necessary cacheablity metadata in
// case there is no default search page and would not be invalidated if that
// changes.
$this->renderer->addCacheableDependency($form, $this->configFactory->get('search.settings'));
if (!$entity_id) {
$form['message'] = [
'#markup' => $this->t('Search is currently disabled'),
];
return $form;
}
$route = 'search.view_' . $entity_id;
$form['#action'] = $this->url($route);
$form['#method'] = 'get';
$form['keys'] = [
'#type' => 'search',
'#title' => $this->t('Search'),
'#title_display' => 'invisible',
'#size' => 15,
'#default_value' => '',
'#attributes' => ['title' => $this->t('Enter the terms you wish to search for.')],
];
$form['actions'] = ['#type' => 'actions'];
$form['actions']['submit'] = [
'#type' => 'submit',
'#value' => $this->t('Search'),
// Prevent op from showing up in the query string.
'#name' => '',
];
return $form;
}
/**
* {@inheritdoc}
*/
public function submitForm(array &$form, FormStateInterface $form_state) {
// This form submits to the search page, so processing happens there.
}
}