diff core/modules/system/src/Theme/DbUpdateNegotiator.php @ 0:c75dbcec494b

Initial commit from drush-created site

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/system/src/Theme/DbUpdateNegotiator.php	Thu Jul 05 14:24:15 2018 +0000
@@ -0,0 +1,52 @@
+<?php
+
+namespace Drupal\system\Theme;
+
+use Drupal\Core\Config\ConfigFactoryInterface;
+use Drupal\Core\Routing\RouteMatchInterface;
+use Drupal\Core\Site\Settings;
+use Drupal\Core\Theme\ThemeNegotiatorInterface;
+
+/**
+ * Sets the active theme for the database update pages.
+ */
+class DbUpdateNegotiator implements ThemeNegotiatorInterface {
+
+  /**
+   * The config factory.
+   *
+   * @var \Drupal\Core\Config\ConfigFactoryInterface
+   */
+  protected $configFactory;
+
+  /**
+   * Constructs a DbUpdateNegotiator.
+   *
+   * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
+   *   The config factory.
+   */
+  public function __construct(ConfigFactoryInterface $config_factory) {
+    $this->configFactory = $config_factory;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function applies(RouteMatchInterface $route_match) {
+    return $route_match->getRouteName() == 'system.db_update';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function determineActiveTheme(RouteMatchInterface $route_match) {
+    $custom_theme = Settings::get('maintenance_theme', 'seven');
+    if (!$custom_theme) {
+      $config = $this->configFactory->get('system.theme');
+      $custom_theme = $config->get('default');
+    }
+
+    return $custom_theme;
+  }
+
+}