public function ExtlinkSettingsSaveEventSubscriber::onConfigSave in External Links 8

Acts on changes to extlink.settings to flush JS library and assets.

Parameters

\Drupal\Core\Config\ConfigCrudEvent $event: The configuration event.

File

src/EventSubscriber/ExtlinkSettingsSaveEventSubscriber.php, line 49

Class

ExtlinkSettingsSaveEventSubscriber

Clears JS and asset libraries in response to changes in extlink settings.

Namespace

Drupal\extlink\EventSubscriber

Code

public function onConfigSave(ConfigCrudEvent $event) {
  $config = $event
    ->getConfig();
  if ($config
    ->getName() === 'extlink.settings') {
    $flush_js_files = $config
      ->get('extlink_use_external_js_file');
    if ($event
      ->isChanged('extlink_use_external_js_file')) {

      // When using external JS file is enabled or disabled, need to flush the
      // library discovery cache to update the dependencies of drupal.extlink
      // library.
      $this->libraryDiscovery
        ->clearCachedDefinitions();
      $flush_js_files = TRUE;
    }
    if ($flush_js_files) {

      // Flush the optimized JS files if using an external JS file when the
      // settings are saved. Also flush the optimized JS files when disabling
      // or enabling using the external JS files.
      $this->jsOptimizer
        ->deleteAll();
      _drupal_flush_css_js();
    }
  }
}