flexslider.install

<?php

/**
 * @file
 * Installation actions for FlexSlider.
 */

/**
 * Implements hook_uninstall().
 *
 * Deletes all content and configuration installed by this module.
 */
function flexslider_uninstall() {
  // Delete all of the configuration installed by this module.
  $dir = \Drupal::service('extension.list.module')->getPath('flexslider') . '/config/install';
  $files = \Drupal::service('file_system')->scanDirectory($dir, '/.*/');
  foreach ($files as $file) {
    \Drupal::configFactory()->getEditable($file->name)->delete();
  }
  \Drupal::logger('flexslider')->info(t('Deleted flexslider configuration'), []);
}

/**
 * Implements hook_requirements().
 */
function flexslider_requirements($phase) {
  $requirements = [];

  // Check to see if the flexslider library is available.
  if ($phase == 'runtime') {
    $path = DRUPAL_ROOT . '/libraries/flexslider/jquery.flexslider-min.js';
    $found = file_exists($path);

    // Find the library in the profiles path if not found.
    if (!$found) {
      $path = \Drupal::service('extension.list.profile')->getPath(\Drupal::installProfile());
      $path .= '/libraries/flexslider/jquery.flexslider-min.js';
      $found = file_exists($path);
    }

    if (!$found) {
      $requirements['flexslider'] = [
        'title' => t('FlexSlider'),
        'description' => t('FlexSlider library not found. Please consult the README.md for installation instructions.'),
        'severity' => REQUIREMENT_ERROR,
      ];
    }
  }
  return $requirements;
}

/**
 * Add styles to the default configuration for flexslider module.
 */
function flexslider_update_8001() {
  $config_factory = \Drupal::configFactory();
  $config = $config_factory->getEditable('flexslider.settings');
  $config->set('flexslider_css', TRUE);
  $config->set('flexslider_module_css', TRUE);
  $config->save(TRUE);
}