font_awesome.module

<?php
/**
 * @file
 * Include Font Awesome icons via CSS classes in your website.
 */

/**
 * Implements hook_config_info().
 */
function font_awesome_config_info() {
  return array(
    'font_awesome.settings' => array(
      'label' => t('Font Awesome settings'),
      'group' => t('Configuration'),
    ),
  );
}

/**
 * Implements hook_init().
 */
function font_awesome_init() {
  // Add FontAwesome CSS.
  $options = array(
    'type' => 'external',
    'every_page' => TRUE,
  );
  switch (config_get('font_awesome.settings', 'fontawesome')) {
    case 'v4':
      backdrop_add_css('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css', $options);
      break;

    case 'v5':
      backdrop_add_css('https://use.fontawesome.com/releases/v5.2.0/css/all.css', $options);
      if (config_get('font_awesome.settings', 'v4_shims')) {
        backdrop_add_css('https://use.fontawesome.com/releases/v5.2.0/css/v4-shims.css', $options);
      }
      break;

    case 'v5.15':
      backdrop_add_css('https://use.fontawesome.com/releases/v5.15.4/css/all.css', $options);
      if (config_get('font_awesome.settings', 'v4_shims')) {
        backdrop_add_css('https://use.fontawesome.com/releases/v5.15.4/css/v4-shims.css', $options);
      }
      break;

    case 'v6.4':
      backdrop_add_css('https://use.fontawesome.com/releases/v6.4.2/css/all.css', $options);
      if (config_get('font_awesome.settings', 'v4_shims')) {
        backdrop_add_css('https://use.fontawesome.com/releases/v6.4.2/css/v4-shims.css', $options);
      }
      break;
    case 'local':
      $options = array(
        'every_page' => TRUE,
      );
      backdrop_add_css(config_get('font_awesome.settings', 'local_path'), $options);
      break;
    case 'other':
    case '':
      // If added in 'other' location, we don't need to add here; if set to
      // None, then no need to load.
      break;
  }
}

/**
 * Implements hook_menu().
 */
function font_awesome_menu() {
  $items['admin/config/user-interface/font-awesome'] = array(
    'title' => 'Font Awesome',
    'description' => 'Include Font Awesome icons via CSS classes in your website.',
    'page callback' => 'backdrop_get_form',
    'page arguments' => array('font_awesome_admin_form'),
    'access arguments' => array('administer site configuration'),
    'file' => 'font_awesome.admin.inc',
  );

  return $items;
}

/**
 * Implements hook_icon_info().
 */
function font_awesome_icon_info() {
  return _font_awesome_load_icons();
}

/**
 * Loads the icons from the Font Awesome icons into a keyed array.
 */
function _font_awesome_load_icons() {
  $icons = cache_get('font_awesome_icons_array');
  if (!empty($icons)) {
    return $icons->data;
  }

  $icons = array();
  $subpaths = array('brands', 'regular', 'solid');
  foreach ($subpaths as $subpath) {
    $icon_directory = backdrop_get_path('module', 'font_awesome') . '/icons/' . $subpath;
    $icon_list = scandir($icon_directory);
    foreach ($icon_list as $icon) {
      if (substr($icon, -4) == '.svg') {
        $icon_name = substr($icon, 0, -4);
        $icons['font-awesome-' . $icon_name] = array(
          'name' => $icon_name,
          'directory' => $icon_directory,
        );
      }
    }
  }

  cache_set('font_awesome_icons_array', $icons, 'cache', CACHE_PERMANENT);
  return $icons;
}