/Drupal 8

function system_admin_compact_mode


Determines whether the current user is in compact mode.

Compact mode shows certain administration pages with less description text, such as the configuration page and the permissions page.

Whether the user is in compact mode is determined by a cookie, which is set for the user by \Drupal\system\Controller\SystemController::compactPage().

If the user does not have the cookie, the default value is given by the configuration variable 'system.site.admin_compact_mode', which itself defaults to FALSE. This does not have a user interface to set it: it is a hidden variable which can be set in the settings.php file.

Return value

bool TRUE when in compact mode, FALSE when in expanded mode.


core/modules/system/system.module, line 1195
Configuration system that lets administrators modify the workings of the site.


function system_admin_compact_mode() {
  // PHP converts dots into underscores in cookie names to avoid problems with
  // its parser, so we use a converted cookie name.
  return \Drupal::request()->cookies->get('Drupal_visitor_admin_compact_mode', \Drupal::config('system.site')->get('admin_compact_mode'));

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