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<?php
namespace Drupal\purge_ui\Form;
use Drupal\Core\Ajax\AjaxResponse;
use Drupal\Core\Ajax\HtmlCommand;
use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\purge\Plugin\Purge\Queue\QueueServiceInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
class QueueBrowserForm extends FormBase {
use CloseDialogTrait;
protected $purgeQueue;
protected $numberOfItems = 15;
public final function __construct(QueueServiceInterface $purge_queue) {
$this->purgeQueue = $purge_queue;
}
public static function create(ContainerInterface $container) {
return new static($container
->get('purge.queue'));
}
public function getFormId() {
return 'purge_ui.queue_browser_form';
}
public function buildForm(array $form, FormStateInterface $form_state) {
$form['#prefix'] = '<div id="browserwrapper">';
$form['#suffix'] = '</div>';
$form['#attached']['library'][] = 'core/drupal.dialog.ajax';
if (is_null($form_state
->get('pages'))) {
$form_state
->set('pages', $this->purgeQueue
->selectPageMax());
$form_state
->set('page', 1);
}
$pages = $form_state
->get('pages');
$page = $form_state
->get('page');
$button = function ($overrides = []) {
return $overrides + [
'#type' => 'submit',
'#name' => 'page',
'#submit' => [
[
$this,
'submitForm',
],
],
'#ajax' => [
'callback' => '::submitForm',
'wrapper' => 'browserwrapper',
],
];
};
$header = [
[
'data' => $this
->t('Type'),
],
[
'data' => $this
->t('State'),
],
[
'data' => $this
->t('Expression'),
],
];
$form['wrapper']['table'] = [
'#theme' => 'table',
'#header' => $header,
'#rows' => [],
];
$this->purgeQueue
->selectPageLimit($this->numberOfItems);
foreach ($this->purgeQueue
->selectPage($page) as $immutable) {
$form['wrapper']['table']['#rows'][] = [
'data' => [
$immutable
->getPluginDefinition()['label'],
$immutable
->getStateStringTranslated(),
$immutable
->getExpression(),
],
];
}
if (empty($form['wrapper']['table']['#rows'])) {
$form['wrapper']['table'] = [
'#markup' => $this
->t("Your queue is empty."),
];
}
$form['pager'] = [];
$form['pager']['page']['first'] = $button([
'#value' => '<<',
'#access' => $page > 4,
]);
$links = 2;
$start = $page - $links > 0 ? $page - $links : 1;
$end = $page + $links < $pages ? $page + $links : $pages;
for ($i = $start; $i <= $end; $i++) {
$form['pager']['page'][$i] = $button([
'#value' => $i,
'#button_type' => $page == $i ? 'primary' : '',
]);
}
$form['pager']['page']['last'] = $button([
'#value' => ">> {$pages}",
'#access' => $page < $pages - 4,
]);
if (count($form['pager']['page']) === 3) {
unset($form['pager']);
}
$form['actions'] = [
'#type' => 'actions',
];
$form['actions']['close'] = [
'#ajax' => [
'callback' => '::closeDialog',
],
'#value' => $this
->t('Close'),
'#button_type' => 'primary',
'#type' => 'submit',
'#weight' => -10,
];
$form['actions']['refresh'] = $button([
'#value' => $this
->t("Refresh"),
]);
return $form;
}
public function submitForm(array &$form, FormStateInterface $form_state) {
$op = (string) $form_state
->getValue('page');
$page = $form_state
->get('page');
$pages = $form_state
->get('pages');
if (is_numeric($op)) {
$page = (int) $op;
}
elseif ($op == '<<') {
$page = 1;
}
elseif ($op == ">> {$pages}") {
$page = $pages;
}
$form_state
->set('page', $page);
$form_state
->setRebuild();
$response = new AjaxResponse();
$response
->addCommand(new HtmlCommand('#browserwrapper', $form));
return $form;
}
}