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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\file\Plugin\views\field\File. | |
| */ | |
| namespace Drupal\file\Plugin\views\field; | |
| use Drupal\Core\Form\FormStateInterface; | |
| use Drupal\views\ResultRow; | |
| use Drupal\views\ViewExecutable; | |
| use Drupal\views\Plugin\views\display\DisplayPluginBase; | |
| use Drupal\views\Plugin\views\field\FieldPluginBase; | |
| /** | |
| * Field handler to provide simple renderer that allows linking to a file. | |
| * | |
| * @ingroup views_field_handlers | |
| * | |
| * @ViewsField("file") | |
| */ | |
| class File extends FieldPluginBase { | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function init(ViewExecutable $view, DisplayPluginBase $display, array &$options = NULL) { | |
| parent::init($view, $display, $options); | |
| if (!empty($options['link_to_file'])) { | |
| $this->additional_fields['uri'] = 'uri'; | |
| } | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| protected function defineOptions() { | |
| $options = parent::defineOptions(); | |
| $options['link_to_file'] = array('default' => FALSE); | |
| return $options; | |
| } | |
| /** | |
| * Provide link to file option | |
| */ | |
| public function buildOptionsForm(&$form, FormStateInterface $form_state) { | |
| $form['link_to_file'] = array( | |
| '#title' => $this->t('Link this field to download the file'), | |
| '#description' => $this->t("Enable to override this field's links."), | |
| '#type' => 'checkbox', | |
| '#default_value' => !empty($this->options['link_to_file']), | |
| ); | |
| parent::buildOptionsForm($form, $form_state); | |
| } | |
| /** | |
| * Prepares link to the file. | |
| * | |
| * @param string $data | |
| * The XSS safe string for the link text. | |
| * @param \Drupal\views\ResultRow $values | |
| * The values retrieved from a single row of a view's query result. | |
| * | |
| * @return string | |
| * Returns a string for the link text. | |
| */ | |
| protected function renderLink($data, ResultRow $values) { | |
| if (!empty($this->options['link_to_file']) && $data !== NULL && $data !== '') { | |
| $this->options['alter']['make_link'] = TRUE; | |
| // @todo Wrap in file_url_transform_relative(). This is currently | |
| // impossible. As a work-around, we could add the 'url.site' cache context | |
| // to ensure different file URLs are generated for different sites in a | |
| // multisite setup, including HTTP and HTTPS versions of the same site. | |
| // But unfortunately it's impossible to bubble a cache context here. | |
| // Fix in https://www.drupal.org/node/2646744. | |
| $this->options['alter']['path'] = file_create_url($this->getValue($values, 'uri')); | |
| } | |
| return $data; | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function render(ResultRow $values) { | |
| $value = $this->getValue($values); | |
| return $this->renderLink($this->sanitizeValue($value), $values); | |
| } | |
| } |