function DisplayPluginBase::usesExposed

Determines if this display uses exposed filters.

Overrides DisplayPluginInterface::usesExposed

File

core/modules/views/src/Plugin/views/display/DisplayPluginBase.php, line 253

Class

DisplayPluginBase

Base class for views display plugins.

Namespace

Code

public function usesExposed() {
  if (!isset($this->has_exposed)) {
    foreach ($this->handlers as $type => $value) {
      foreach ($this->view->{$type} as $handler) {
        if ($handler->canExpose() && $handler->isExposed()) {
          // One is all we need; if we find it, return TRUE.
          $this->has_exposed = TRUE;
          return TRUE;
        }
      }
    }
    $pager = $this->getPlugin('pager');
    if (isset($pager) && $pager->usesExposed()) {
      $this->has_exposed = TRUE;
      return TRUE;
    }
    $this->has_exposed = FALSE;
  }
  return $this->has_exposed;
}