Chris@0: <?php
Chris@0: 
Chris@0: /**
Chris@0:  * @file
Chris@0:  * Hooks provided by the System module.
Chris@0:  */
Chris@0: 
Chris@0: use Drupal\Core\Url;
Chris@0: 
Chris@0: /**
Chris@0:  * @addtogroup hooks
Chris@0:  * @{
Chris@0:  */
Chris@0: 
Chris@0: /**
Chris@0:  * Alters theme operation links.
Chris@0:  *
Chris@0:  * @param $theme_groups
Chris@0:  *   An associative array containing groups of themes.
Chris@0:  *
Chris@0:  * @see system_themes_page()
Chris@0:  */
Chris@0: function hook_system_themes_page_alter(&$theme_groups) {
Chris@0:   foreach ($theme_groups as $state => &$group) {
Chris@0:     foreach ($theme_groups[$state] as &$theme) {
Chris@0:       // Add a foo link to each list of theme operations.
Chris@0:       $theme->operations[] = [
Chris@0:         'title' => t('Foo'),
Chris@0:         'url' => Url::fromRoute('system.themes_page'),
Chris@17:         'query' => ['theme' => $theme->getName()],
Chris@0:       ];
Chris@0:     }
Chris@0:   }
Chris@0: }
Chris@0: 
Chris@0: /**
Chris@0:  * @} End of "addtogroup hooks".
Chris@0:  */