D002-testing: Add another page for demoing the DownloadController fun…

…ctionality.

lib/modules/responses/responses.routing.yml

@@ -31,8 +31,16 @@ responses.example_plain_html:
     # This is a test page, hence no access check is needed.
     _access: 'TRUE'
 responses.pdf_download:
-  path: /pdf-download
+  path: '/pdf-download'
   defaults:
     _controller: Drupal\responses\Controller\DownloadController::page
   requirements:
     _user_is_logged_in: 'TRUE'
+
+responses.download_page:
+  path: '/pdf-download-page'
+  defaults:
+    _title: 'Download Page'
+    _controller: '\Drupal\responses\Controller\DownloadPageController'
+  requirements:
+    _permission: 'access content'

lib/modules/responses/src/Controller/DownloadPageController.php

@@ -0,0 +1,26 @@
+<?php declare(strict_types = 1);
+
+namespace Drupal\responses\Controller;
+
+use Drupal\Core\Controller\ControllerBase;
+
+/**
+ * Returns responses for Responses routes.
+ */
+final class DownloadPageController extends ControllerBase {
+
+  /**
+   * Builds the response.
+   */
+  public function __invoke(): array {
+
+    $build['content'] = [
+      '#type' => 'item',
+      '#markup' => '<p>' . $this->t('Click on button to download example pdf') . '</p></br>'
+        . '<a class="button--primary button" href="pdf-download" target="_blank">' . $this->t('Download') . '</a>',
+    ];
+
+    return $build;
+  }
+
+}