function multiversion_preprocess_html in Multiversion 8
Implements hook_preprocess_HOOK().
Adds the workspace as a class to the body.
File
- ./multiversion.module, line 635 
Code
function multiversion_preprocess_html(&$variables) {
  $active_workspace = \Drupal::service('workspace.manager')
    ->getActiveWorkspace();
  if ($active_workspace && ($machine_name = $active_workspace
    ->getMachineName())) {
    // Add a new body class with the active workspace.
    $variables['attributes']['class'][] = 'workspace-' . $machine_name;
  }
}