field_menu.module in Field Menu 8

A menu tree field using the Field Types API.

File

field_menu.module

<?php

/**
 * @file
 * A menu tree field using the Field Types API.
 */
use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_help().
 */
function field_menu_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    case 'help.page.field_menu':
      $readme = __DIR__ . '/README.txt';
      $text = file_get_contents($readme);
      $output = '';

      // If the Markdown module is installed, use it to render the README.
      if ($text && \Drupal::moduleHandler()
        ->moduleExists('markdown') === TRUE) {
        $filter_manager = \Drupal::service('plugin.manager.filter');
        $settings = \Drupal::configFactory()
          ->get('markdown.settings')
          ->getRawData();
        $config = [
          'settings' => $settings,
        ];
        $filter = $filter_manager
          ->createInstance('markdown', $config);
        $output = $filter
          ->process($text, 'en');
      }
      elseif ($text) {
        $output = '<pre>' . $text . '</pre>';
      }

      // Add a link to the Drupal.org project.
      $output .= '<p>';
      $output .= t('Visit the <a href=":project_link">Field Menu project page</a> on Drupal.org for more information.', [
        ':project_link' => 'https://www.drupal.org/project/field_menu',
      ]);
      $output .= '</p>';
      return $output;
  }
}

/**
 * Implements hook_theme().
 */
function field_menu_theme() {
  return [
    'field_menu_item' => [
      'variables' => [
        'title' => NULL,
        'tree' => NULL,
      ],
    ],
  ];
}

Functions

Name	Description
field_menu_help	Implements hook_help().
field_menu_theme	Implements hook_theme().