masquerade_float_block.module

<?php

/**
 * @file
 * File contains JS float block initialization.
 *
 * The module loads all needed libraries for initializing jQuery UI dialog
 * library as well as jQuery.cookies plugin to remember the block position.
 */

use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_page_attachments_alter().
 */
function masquerade_float_block_page_attachments_alter(array &$page) {

  $config = \Drupal::configFactory()->get('masquerade_float_block.settings');
  $can_switch_block = \Drupal::currentUser()
    ->hasPermission('manage masquerade float block visibility');
  $mfb_show = \Drupal::requestStack()->getCurrentRequest()->get('mfb_show');
  if (!is_null($mfb_show) && $can_switch_block) {
    if (in_array($mfb_show, [1, 0])) {
      $config = \Drupal::configFactory()
        ->getEditable('masquerade_float_block.settings');
      $config->set('visible', (integer) $mfb_show);
      $config->save();
    }
    else {
      drupal_set_message(t('Incorrect mfb_show parameter value: only 1 or 0 possible.'), 'error');
    }
  }
  elseif (!is_null($mfb_show) && !$can_switch_block) {
    drupal_set_message(t('You have no access to switch the Masquerade Float Block visibility'), 'error');
  }


  $visible = $config->get('visible');

  if ($visible) {
    $form = \Drupal::formBuilder()->getForm('Drupal\masquerade\Form\MasqueradeForm');
    $render_service = \Drupal::service('renderer');
    $html = $render_service->renderPlain($form);
    $block_title = t('Masquerade');

    $page['#attached']['library'][] = 'masquerade_float_block/masquerade-float-block';
    $page['#attached']['drupalSettings']['masquerade_float_block']['block']['content'] = $html;
    $page['#attached']['drupalSettings']['masquerade_float_block']['block']['subject'] = $block_title;
  }
}

/**
 * Implements hook_help().
 */
function masquerade_float_block_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    case 'help.page.masquerade_float_block':
      $output = file_get_contents(drupal_get_path('module', 'masquerade_float_block') . '/README.txt');
      return '<pre>' . ($output) . '</pre>';
  }
}