/**
* Sets widget file id values by validating and processing the submitted data.
* Runs before processor callbacks.
*/
public static function setWidgetValue($element, &$input, FormStateInterface $form_state)
{
if (empty($input['imce_paths'])) {
return;
}
$paths = $input['imce_paths'];
$input['imce_paths'] = '';
// Remove excess data.
$paths = array_unique(array_filter(explode(':', $paths)));
if (isset($element['#cardinality']) && $element['#cardinality'] > -1) {
$paths = array_slice($paths, 0, $element['#cardinality']);
}
// Check if paths are accessible by the current user with Imce.
if (!($paths = Imce::accessFilePaths($paths, \Drupal::currentUser(), $element['#scheme']))) {
return;
}
// Validate paths as file entities.
$file_usage = \Drupal::service('file.usage');
$errors = array();
foreach ($paths as $path) {
// Get entity by uri
$file = Imce::getFileEntity($element['#scheme'] . '://' . $path, TRUE);
if ($new_errors = file_validate($file, $element['#upload_validators'])) {
$errors = array_merge($errors, $new_errors);
} else {
// Save the file record.
if ($file->isNew()) {
$file->save();
}
if ($fid = $file->id()) {
// Make sure the file has usage otherwise it will be denied.
if (!$file_usage->listUsage($file)) {
$file_usage->add($file, 'imce', 'file', $fid);
}
$input['fids'][] = $fid;
}
}
}
// Set error messages.
if ($errors) {
$errors = array_unique($errors);
if (count($errors) > 1) {
$errors = array('#theme' => 'item_list', '#items' => $errors);
$message = \Drupal::service('renderer')->render($errors);
} else {
$message = array_pop($errors);
}
// May break the widget flow if set as a form error.
drupal_set_message($message, 'error');
}
}
/**
* Checks if a file uri is accessible by a user with Imce.
*/
public static function accessFileUri($uri, AccountProxyInterface $user = NULL)
{
list($scheme, $path) = explode('://', $uri, 2);
return $scheme && $path && Imce::accessFilePaths(array($path), $user, $scheme);
}
