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test_theme_theme.theme in Drupal 8

Test to ensure theme compatibility with managed files.

File

core/modules/system/tests/themes/test_theme_theme/test_theme_theme.theme
View source
<?php

/**
 * @file
 * Test to ensure theme compatibility with managed files.
 */
use Drupal\Core\Form\FormStateInterface;
use Drupal\file\Entity\File;

/**
 * Implements hook_form_system_theme_settings_alter().
 */
function test_theme_theme_form_system_theme_settings_alter(&$form, FormStateInterface $form_state) {
  $form['custom_logo'] = [
    '#type' => 'managed_file',
    '#title' => t('Secondary logo.'),
    '#default_value' => theme_get_setting('custom_logo'),
    '#progress_indicator' => 'bar',
    '#progress_message' => t('Please wait...'),
    '#upload_location' => 'public://test',
    '#upload_validators' => [
      'file_validate_extensions' => [
        'gif png jpg jpeg',
      ],
    ],
  ];
  $form['#submit'][] = 'test_theme_theme_form_system_theme_settings_submit';
}

/**
 * Test theme form settings submission handler.
 */
function test_theme_theme_form_system_theme_settings_submit(&$form, FormStateInterface $form_state) {
  if ($file_id = $form_state
    ->getValue([
    'custom_logo',
    '0',
  ])) {
    $file = File::load($file_id);
    $file
      ->setPermanent();
    $file
      ->save();
  }
}