/**
* Page callback to output a token tree as an empty page.
*/
function outputTree(Request $request)
{
$options = $request->query->has('options') ? Json::decode($request->query->get('options')) : [];
// The option token_types may only be an array OR 'all'. If it is not set,
// we assume that only global token types are requested.
$token_types = !empty($options['token_types']) ? $options['token_types'] : [];
if ($token_types == 'all') {
$build = $this->treeBuilder->buildAllRenderable($options);
} else {
$build = $this->treeBuilder->buildRenderable($token_types, $options);
}
$build['#cache']['contexts'][] = 'url.query_args:options';
$build['#title'] = $this->t('Available tokens');
return $build;
}
/**
* Render the token tree for the specified entity.
*
* @param \Drupal\Core\Entity\EntityInterface $entity
* The entity for which the token tree should be rendered.
*
* @return array
* Render array of the token tree for the $entity.
*
* @see static::entityLoad
*/
protected function renderTokenTree(EntityInterface $entity)
{
$this->moduleHandler()->loadInclude('token', 'pages.inc');
$entity_type = $entity->getEntityTypeId();
$token_type = $this->entityMapper->getTokenTypeForEntityType($entity_type);
$options = ['flat' => TRUE, 'values' => TRUE, 'data' => [$token_type => $entity]];
$token_tree = [$token_type => ['tokens' => $this->treeBuilder->buildTree($token_type, $options)]];
// foreach ($tree as $token => $token_info) {
// if (!isset($token_info['value']) && !empty($token_info['parent']) && !isset($tree[$token_info['parent']]['value'])) {
// continue;
// }
// }
$build['tokens'] = ['#type' => 'token_tree_table', '#show_restricted' => FALSE, '#skip_empty_values' => TRUE, '#token_tree' => $token_tree, '#columns' => ['token', 'value'], '#empty' => $this->t('No tokens available.')];
return $build;
}
/**
* Retrieves suggestions for block category autocompletion.
*
* @param \Symfony\Component\HttpFoundation\Request $request
* The current request.
* @param string $token_type
* The token type.
* @param string $filter
* The autocomplete filter.
*
* @return \Symfony\Component\HttpFoundation\JsonResponse
* A JSON response containing autocomplete suggestions.
*/
public function autocomplete($token_type, $filter, Request $request)
{
$filter = substr($filter, strrpos($filter, '['));
$matches = array();
if (!Unicode::strlen($filter)) {
$matches["[{$token_type}:"] = 0;
} else {
$depth = max(1, substr_count($filter, ':'));
$tree = $this->treeBuilder->buildTree($token_type, ['flat' => TRUE, 'depth' => $depth]);
foreach (array_keys($tree) as $token) {
if (strpos($token, $filter) === 0) {
$matches[$token] = levenshtein($token, $filter);
if (isset($tree[$token]['children'])) {
$token = rtrim($token, ':]') . ':';
$matches[$token] = levenshtein($token, $filter);
}
}
}
}
asort($matches);
$keys = array_keys($matches);
$matches = array_combine($keys, $keys);
return new JsonResponse($matches);
}
