Version 1

[yaffs-website] / web / core / modules / block / src / Theme / AdminDemoNegotiator.php

diff --git a/web/core/modules/block/src/Theme/AdminDemoNegotiator.php b/web/core/modules/block/src/Theme/AdminDemoNegotiator.php
new file mode 100644 (file)
index 0000000..3ceead5
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+++ b/web/core/modules/block/src/Theme/AdminDemoNegotiator.php
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+<?php
+
+namespace Drupal\block\Theme;
+
+use Drupal\Core\Routing\RouteMatchInterface;
+use Drupal\Core\Theme\ThemeNegotiatorInterface;
+
+/**
+ * Negotiates the theme for the block admin demo page via the URL.
+ */
+class AdminDemoNegotiator implements ThemeNegotiatorInterface {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function applies(RouteMatchInterface $route_match) {
+    return $route_match->getRouteName() == 'block.admin_demo';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function determineActiveTheme(RouteMatchInterface $route_match) {
+    // We return exactly what was passed in, to guarantee that the page will
+    // always be displayed using the theme whose blocks are being configured.
+    return $route_match->getParameter('theme');
+  }
+
+}