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<?php
namespace Drupal\views\Plugin\views\area;
use Drupal\Core\Entity\EntityStorageInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\views\Views;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Views area handlers. Insert a view inside of an area.
*
* @ingroup views_area_handlers
*
* @ViewsArea("view")
*/
class View extends AreaPluginBase {
/**
* Stores whether the embedded view is actually empty.
*
* @var bool
*/
protected $isEmpty;
/**
* The view storage.
*
* @var \Drupal\Core\Entity\EntityStorageInterface
*/
protected $viewStorage;
/**
* Constructs a View object.
*
* @param array $configuration
* A configuration array containing information about the plugin instance.
* @param string $plugin_id
* The plugin_id for the plugin instance.
* @param mixed $plugin_definition
* The plugin implementation definition.
* @param \Drupal\Core\Entity\EntityStorageInterface $view_storage
* The view storage.
*/
public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityStorageInterface $view_storage) {
parent::__construct($configuration, $plugin_id, $plugin_definition);
$this->viewStorage = $view_storage;
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
return new static(
$configuration,
$plugin_id,
$plugin_definition,
$container->get('entity.manager')->getStorage('view')
);
}
/**
* {@inheritdoc}
*/
protected function defineOptions() {
$options = parent::defineOptions();
$options['view_to_insert'] = ['default' => ''];
$options['inherit_arguments'] = ['default' => FALSE];
return $options;
}
/**
* {@inheritdoc}
*/
public function buildOptionsForm(&$form, FormStateInterface $form_state) {
parent::buildOptionsForm($form, $form_state);
$view_display = $this->view->storage->id() . ':' . $this->view->current_display;
$options = ['' => $this->t('-Select-')];
$options += Views::getViewsAsOptions(FALSE, 'all', $view_display, FALSE, TRUE);
$form['view_to_insert'] = [
'#type' => 'select',
'#title' => $this->t('View to insert'),
'#default_value' => $this->options['view_to_insert'],
'#description' => $this->t('The view to insert into this area.'),
'#options' => $options,
];
$form['inherit_arguments'] = [
'#type' => 'checkbox',
'#title' => $this->t('Inherit contextual filters'),
'#default_value' => $this->options['inherit_arguments'],
'#description' => $this->t('If checked, this view will receive the same contextual filters as its parent.'),
];
}
/**
* {@inheritdoc}
*/
public function render($empty = FALSE) {
if (!empty($this->options['view_to_insert'])) {
list($view_name, $display_id) = explode(':', $this->options['view_to_insert']);
$view = $this->viewStorage->load($view_name)->getExecutable();
if (empty($view) || !$view->access($display_id)) {
return [];
}
$view->setDisplay($display_id);
// Avoid recursion
$view->parent_views += $this->view->parent_views;
$view->parent_views[] = "$view_name:$display_id";
// Check if the view is part of the parent views of this view
$search = "$view_name:$display_id";
if (in_array($search, $this->view->parent_views)) {
drupal_set_message(t("Recursion detected in view @view display @display.", ['@view' => $view_name, '@display' => $display_id]), 'error');
}
else {
if (!empty($this->options['inherit_arguments']) && !empty($this->view->args)) {
$output = $view->preview($display_id, $this->view->args);
}
else {
$output = $view->preview($display_id);
}
$this->isEmpty = $view->display_handler->outputIsEmpty();
return $output;
}
}
return [];
}
/**
* {@inheritdoc}
*/
public function isEmpty() {
if (isset($this->isEmpty)) {
return $this->isEmpty;
}
else {
return parent::isEmpty();
}
}
/**
* {@inheritdoc}
*/
public function calculateDependencies() {
$dependencies = parent::calculateDependencies();
list($view_id) = explode(':', $this->options['view_to_insert'], 2);
// Don't call the current view, as it would result into an infinite recursion.
if ($view_id && $this->view->storage->id() != $view_id) {
$view = $this->viewStorage->load($view_id);
$dependencies[$view->getConfigDependencyKey()][] = $view->getConfigDependencyName();
}
return $dependencies;
}
}