5 * Test to ensure theme compatibility with managed files.
8 use Drupal\Core\Form\FormStateInterface;
9 use Drupal\file\Entity\File;
12 * Implements hook_form_system_theme_settings_alter().
14 function test_theme_settings_form_system_theme_settings_alter(&$form, FormStateInterface $form_state) {
15 $form['custom_logo'] = [
16 '#type' => 'managed_file',
17 '#title' => t('Secondary logo.'),
18 '#default_value' => theme_get_setting('custom_logo'),
19 '#progress_indicator' => 'bar',
20 '#progress_message' => t('Please wait...'),
21 '#upload_location' => 'public://test',
22 '#upload_validators' => [
23 'file_validate_extensions' => ['gif png jpg jpeg'],
27 $form['#submit'][] = 'test_theme_settings_form_system_theme_settings_submit';
31 * Test theme form settings submission handler.
33 function test_theme_settings_form_system_theme_settings_submit(&$form, FormStateInterface $form_state) {
34 if ($file_id = $form_state->getValue(['custom_logo', '0'])) {
35 $file = File::load($file_id);
36 $file->setPermanent();