easy_breadcrumb.module in Easy Breadcrumb 8

The Easy Breadcrumb module improves the core system breadcrumbs.

File

easy_breadcrumb.module

<?php

/**
 * @file
 * The Easy Breadcrumb module improves the core system breadcrumbs.
 */
use Drupal\Core\Block\BlockPluginInterface;

/**
 * Implements hook_help().
 */
function easy_breadcrumb_help($route_name) {
  switch ($route_name) {
    case 'help.page.easy_breadcrumb':
      $text = file_get_contents(__DIR__ . "/README.md");

      // If the Markdown module is installed...
      if (\Drupal::moduleHandler()
        ->moduleExists('markdown') === TRUE) {

        // Uses the Markdown filter to render the README.
        $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');
      }
      else {

        // Outputs the README in plain text.
        $output = '<pre>' . $text . '</pre>';
      }

      // Adds a link to the Drupal.org documentation pages.
      $output .= t('<p>See the <a href=":documentation">documentation pages</a> on Drupal.org for more information.</p>', [
        ':documentation' => 'https://www.drupal.org/docs/8/improve-the-breadcrumbs',
      ]);
      return $output;
  }
}

/**
 * Implements hook_block_view_BASE_BLOCK_ID_alter().
 */
function easy_breadcrumb_block_view_system_breadcrumb_block_alter(array &$build, BlockPluginInterface $block) {

  // Get JSON-LD.
  if ($json_ld = \Drupal::service('easy_breadcrumb.structured_data_json_ld')
    ->value()) {

    // Prepare script tag.
    $structured_data = [
      '#tag' => 'script',
      '#attributes' => [
        'type' => 'application/ld+json',
      ],
      '#value' => $json_ld,
    ];

    // Add script tag.
    $build['#attached']['html_head'][] = [
      $structured_data,
      'easy_breadcrumb_structured_data_json_ld',
    ];
  }
}

Functions

Name	Description
easy_breadcrumb_block_view_system_breadcrumb_block_alter	Implements hook_block_view_BASE_BLOCK_ID_alter().
easy_breadcrumb_help	Implements hook_help().