keyboard_shortcuts-1.0.0/keyboard_shortcuts.install

<?php

/**
 * @file
 * Installation actions for Keyboard Shortcuts.
 */

/**
 * Implements hook_install().
 */
function keyboard_shortcuts_install() {
  $requirements = keyboard_shortcuts_requirements('runtime');
  if ($requirements['mousetrap_library_downloaded']['severity'] == REQUIREMENT_ERROR) {
    \Drupal::messenger()->addWarning($requirements['mousetrap_library_downloaded']['description']);
  }
}

/**
 * Implements hook_requirements().
 */
function keyboard_shortcuts_requirements($phase) {
  // Verify Mousetrap is enabled.
  if ($phase == 'runtime') {
    $library = \Drupal::service('library.discovery')->getLibraryByName('keyboard_shortcuts', 'mousetrap');
    $library_exists = file_exists(DRUPAL_ROOT . '/' . $library['js'][0]['data']);
    $message = t('Keyboard shortcuts module requires the Mousetrap library. <a href=":moustrap_link">Download Mousetrap library</a> and unzip into /libraries/mousetrap.', [
      ':mousetrap_link' => 'https://github.com/ccampbell/mousetrap/archive/master.zip',
    ]);
    return [
      'mousetrap_library_downloaded' => [
        'title' => t('Mousetrap library'),
        'value' => $library_exists ? t('Installed') : t('Not installed'),
        'description' => $library_exists ? '' : $message,
        'severity' => $library_exists ? REQUIREMENT_OK : REQUIREMENT_ERROR,
      ],
    ];
  }
}