public function DisplayLink::render in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/views/src/Plugin/views/area/DisplayLink.php \Drupal\views\Plugin\views\area\DisplayLink::render()
2. 10 core/modules/views/src/Plugin/views/area/DisplayLink.php \Drupal\views\Plugin\views\area\DisplayLink::render()

Render the area.

Parameters

bool $empty: (optional) Indicator if view result is empty or not. Defaults to FALSE.

Return value

array In any case we need a valid Drupal render array to return.

Overrides AreaPluginBase::render

File

core/modules/views/src/Plugin/views/area/DisplayLink.php, line 158

Class

DisplayLink

Views area display_link handler.

Namespace

Drupal\views\Plugin\views\area

Code

public function render($empty = FALSE) {
  if ($empty && empty($this->options['empty']) || empty($this->options['display_id'])) {
    return [];
  }
  if (!$this
    ->isPathBasedDisplay($this->options['display_id'])) {
    return [];
  }

  // Get query parameters from the exposed input and pager.
  $query = $this->view
    ->getExposedInput();
  if ($current_page = $this->view
    ->getCurrentPage()) {
    $query['page'] = $current_page;
  }

  // @todo Remove this parsing once these are removed from the request in
  //   https://www.drupal.org/node/2504709.
  foreach ([
    'view_name',
    'view_display_id',
    'view_args',
    'view_path',
    'view_dom_id',
    'pager_element',
    'view_base_path',
    AjaxResponseSubscriber::AJAX_REQUEST_PARAMETER,
    FormBuilderInterface::AJAX_FORM_REQUEST,
    MainContentViewSubscriber::WRAPPER_FORMAT,
  ] as $key) {
    unset($query[$key]);
  }

  // Set default classes.
  $classes = [
    'views-display-link',
    'views-display-link-' . $this->options['display_id'],
  ];
  if ($this->options['display_id'] === $this->view->current_display) {
    $classes[] = 'is-active';
  }
  return [
    '#type' => 'link',
    '#title' => $this->options['label'],
    '#url' => $this->view
      ->getUrl($this->view->args, $this->options['display_id'])
      ->setOptions([
      'query' => $query,
    ]),
    '#options' => [
      'view' => $this->view,
      'target_display_id' => $this->options['display_id'],
      'attributes' => [
        'class' => $classes,
      ],
    ],
  ];
}