Version 1

[yaffs-website] / web / modules / contrib / devel / src / EventSubscriber / ThemeInfoRebuildSubscriber.php

diff --git a/web/modules/contrib/devel/src/EventSubscriber/ThemeInfoRebuildSubscriber.php b/web/modules/contrib/devel/src/EventSubscriber/ThemeInfoRebuildSubscriber.php
new file mode 100644 (file)
index 0000000..a0be6f1
--- /dev/null
+++ b/web/modules/contrib/devel/src/EventSubscriber/ThemeInfoRebuildSubscriber.php
@@ -0,0 +1,112 @@
+<?php
+
+namespace Drupal\devel\EventSubscriber;
+
+use Drupal\Core\Config\ConfigFactoryInterface;
+use Drupal\Core\Extension\ThemeHandlerInterface;
+use Drupal\Core\Session\AccountProxyInterface;
+use Drupal\Core\StringTranslation\StringTranslationTrait;
+use Drupal\Core\Url;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpKernel\Event\GetResponseEvent;
+use Symfony\Component\HttpKernel\KernelEvents;
+
+/**
+ * Subscriber for force the system to rebuild the theme registry.
+ */
+class ThemeInfoRebuildSubscriber implements EventSubscriberInterface {
+
+  use StringTranslationTrait;
+
+  /**
+   * Internal flag for handle user notification.
+   *
+   * @var string
+   */
+  protected $notificationFlag = 'devel.rebuild_theme_warning';
+
+  /**
+   * The devel config.
+   *
+   * @var \Drupal\Core\Config\Config;
+   */
+  protected $config;
+
+  /**
+   * The current user.
+   *
+   * @var \Drupal\Core\Session\AccountProxyInterface
+   */
+  protected $account;
+
+  /**
+   * The theme handler.
+   *
+   * @var \Drupal\Core\Extension\ThemeHandlerInterface
+   */
+  protected $themeHandler;
+
+  /**
+   * Constructs a ThemeInfoRebuildSubscriber object.
+   *
+   * @param \Drupal\Core\Config\ConfigFactoryInterface $config
+   *   The config factory.
+   * @param \Drupal\Core\Session\AccountProxyInterface $account
+   *   The current user.
+   * @param \Drupal\Core\Extension\ThemeHandlerInterface $theme_handler
+   *   The theme handler.
+   */
+  public function __construct(ConfigFactoryInterface $config, AccountProxyInterface $account, ThemeHandlerInterface $theme_handler) {
+    $this->config = $config->get('devel.settings');
+    $this->account = $account;
+    $this->themeHandler = $theme_handler;
+  }
+
+  /**
+   * Forces the system to rebuild the theme registry.
+   *
+   * @param \Symfony\Component\HttpKernel\Event\GetResponseEvent $event
+   *   The event to process.
+   */
+  public function rebuildThemeInfo(GetResponseEvent $event) {
+    if ($this->config->get('rebuild_theme')) {
+      // Update the theme registry.
+      drupal_theme_rebuild();
+      // Refresh theme data.
+      $this->themeHandler->refreshInfo();
+      // Notify the user that the theme info are rebuilt on every request.
+      $this->triggerWarningIfNeeded($event->getRequest());
+    }
+  }
+
+  /**
+   * Notifies the user that the theme info are rebuilt on every request.
+   *
+   * The warning message is shown only to users with adequate permissions and
+   * only once per session.
+   *
+   * @param \Symfony\Component\HttpFoundation\Request $request
+   *   The request.
+   */
+  protected function triggerWarningIfNeeded(Request $request) {
+    if ($this->account && $this->account->hasPermission('access devel information')) {
+      $session = $request->getSession();
+      if (!$session->has($this->notificationFlag)) {
+        $session->set($this->notificationFlag, TRUE);
+        $message = $this->t('The theme information is being rebuilt on every request. Remember to <a href=":url">turn off</a> this feature on production websites.', [':url' => Url::fromRoute('devel.admin_settings')->toString()]);
+        drupal_set_message($message, 'warning', TRUE);
+      }
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function getSubscribedEvents() {
+    // Set high priority value to start as early as possible.
+    $events[KernelEvents::REQUEST][] = ['rebuildThemeInfo', 256];
+    return $events;
+  }
+
+}