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<?php
namespace Drupal\views\Plugin\views\field;
use Drupal\Component\Utility\Html;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Url as UrlObject;
/**
* A abstract handler which provides a collection of links.
*
* @ingroup views_field_handlers
*/
abstract class Links extends FieldPluginBase {
/**
* {@inheritdoc}
*/
public function usesGroupBy() {
return FALSE;
}
/**
* {@inheritdoc}
*/
public function defineOptions() {
$options = parent::defineOptions();
$options['fields'] = ['default' => []];
$options['destination'] = ['default' => TRUE];
return $options;
}
/**
* {@inheritdoc}
*/
public function buildOptionsForm(&$form, FormStateInterface $form_state) {
parent::buildOptionsForm($form, $form_state);
// Only show fields that precede this one.
$field_options = $this->getPreviousFieldLabels();
$form['fields'] = [
'#type' => 'checkboxes',
'#title' => $this->t('Fields'),
'#description' => $this->t('Fields to be included as links.'),
'#options' => $field_options,
'#default_value' => $this->options['fields'],
];
$form['destination'] = [
'#type' => 'checkbox',
'#title' => $this->t('Include destination'),
'#description' => $this->t('Include a "destination" parameter in the link to return the user to the original view upon completing the link action.'),
'#default_value' => $this->options['destination'],
];
}
/**
* Gets the list of links used by this field.
*
* @return array
* The links which are used by the render function.
*/
protected function getLinks() {
$links = [];
foreach ($this->options['fields'] as $field) {
if (empty($this->view->field[$field]->last_render_text)) {
continue;
}
$title = $this->view->field[$field]->last_render_text;
$path = '';
$url = NULL;
if (!empty($this->view->field[$field]->options['alter']['path'])) {
$path = $this->view->field[$field]->options['alter']['path'];
}
elseif (!empty($this->view->field[$field]->options['alter']['url']) && $this->view->field[$field]->options['alter']['url'] instanceof UrlObject) {
$url = $this->view->field[$field]->options['alter']['url'];
}
// Make sure that tokens are replaced for this paths as well.
$tokens = $this->getRenderTokens([]);
$path = strip_tags(Html::decodeEntities($this->viewsTokenReplace($path, $tokens)));
$links[$field] = [
'url' => $path ? UrlObject::fromUri('internal:/' . $path) : $url,
'title' => $title,
];
if (!empty($this->options['destination'])) {
$links[$field]['query'] = \Drupal::destination()->getAsArray();
}
}
return $links;
}
/**
* {@inheritdoc}
*/
public function query() {
}
}