function menu_per_role_form_menu_link_content_form_alter in Menu Per Role 8

Implements hook_form_FORM_ID_alter().

Alter menu_link_content fields to hide extra fields on content.

File

./menu_per_role.module, line 77

Code

function menu_per_role_form_menu_link_content_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  $config = \Drupal::config('menu_per_role.settings');

  // Get config properties.
  $hide_show_mode = !is_null($config
    ->get('hide_show')) ? $config
    ->get('hide_show') : MenuPerRoleAdminSettings::MODE_DISPLAY_BOTH;
  $hide_on_content_mode = !is_null($config
    ->get('hide_on_content')) ? $config
    ->get('hide_on_content') : MenuPerRoleAdminSettings::MODE_DISPLAY_ON_CONTENT_ALWAYS;

  // Check if content mode setting applies, and if fields should be hidden.
  $is_content = FALSE;
  if ($hide_on_content_mode != MenuPerRoleAdminSettings::MODE_DISPLAY_ON_CONTENT_ALWAYS) {

    /** @var \Drupal\menu_link_content\Form\MenuLinkContentForm $form_obj */
    $form_obj = $form_state
      ->getFormObject();

    /** @var \Drupal\menu_link_content\MenuLinkContentInterface $menu_link */
    $menu_link = $form_obj
      ->getEntity();
    if (!$menu_link
      ->isNew()) {
      $link_url = $menu_link
        ->getUrlObject();
      if ($link_url
        ->isRouted()) {
        $route_params = $link_url
          ->getRouteParameters();
        if (array_key_exists('node', $route_params)) {

          // Nodes routes will contain a 'node' with 'nid' value.
          if ($hide_on_content_mode == MenuPerRoleAdminSettings::MODE_DISPLAY_ON_CONTENT_NO_NODE_ACCESS) {

            // For the existence of any hook_node_grants() implementations.
            $is_content = !empty(\Drupal::moduleHandler()
              ->getImplementations('node_grants'));
          }

          // If false, then check if the setting is display never.
          $is_content = $is_content || $hide_on_content_mode == MenuPerRoleAdminSettings::MODE_DISPLAY_ON_CONTENT_NEVER;
        }
      }
    }
  }

  // Check for the display of each field.
  $display_show_roles = !$is_content && $hide_show_mode != MenuPerRoleAdminSettings::MODE_DISPLAY_ONLY_HIDE;
  $display_hide_roles = !$is_content && $hide_show_mode != MenuPerRoleAdminSettings::MODE_DISPLAY_ONLY_SHOW;

  // Hide fields if they need to be.
  if (!$display_show_roles) {
    $form['menu_per_role__show_role']['#access'] = FALSE;
  }
  if (!$display_hide_roles) {
    $form['menu_per_role__hide_role']['#access'] = FALSE;
  }
}