leafletjs.module

<?php

/**
 * @file
 * Main module file for LeafletJS.
 */

use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_help().
 */
function leafletjs_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    case 'help.page.leafletjs':
      $output = '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('Displays interactive Leaflet map with marker clustering.') . '</p>';
      $output .= '<h3>' . t('Usage') . '</h3>';
      $output .= '<ul>';
      $output .= '<li>' . t('Add the "LeafletJS" block to any region via Structure > Block Layout') . '</li>';
      $output .= '<li>' . t('Or visit /leafletjs to see the dedicated page') . '</li>';
      $output .= '</ul>';
      return $output;
  }
}

/**
 * Implements hook_theme().
 */
function leafletjs_theme($existing, $type, $theme, $path) {
  return [
    'leafletjs' => [
      'variables' => [
        'map_height' => '600px',
      ],
    ],
  ];
}