Issue #2976569 by zenimagine, Jaypan: The action block does not work anymore

src/Plugin/Block/PrivateMessageActionsBlock.php

@@ -5,7 +5,6 @@ namespace Drupal\private_message\Plugin\Block;
 use Drupal\Core\Block\BlockBase;
 use Drupal\Core\Block\BlockPluginInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
-use Drupal\Core\Routing\ResettableStackedRouteMatchInterface;
 use Drupal\Core\Session\AccountProxyInterface;
 use Drupal\Core\Url;
 use Symfony\Component\DependencyInjection\ContainerInterface;
@@ -30,13 +29,6 @@ class PrivateMessageActionsBlock extends BlockBase implements BlockPluginInterfa
    */
   protected $currentUser;
 
-  /**
-   * The current route matcher.
-   *
-   * @var \Drupal\Core\Routing\ResettableStackedRouteMatchInterface
-   */
-  protected $currentRouteMatcher;
-
   /**
    * Constructs a PrivateMessageForm object.
    *
@@ -48,20 +40,16 @@ class PrivateMessageActionsBlock extends BlockBase implements BlockPluginInterfa
    *   The plugin definition.
    * @param \Drupal\Core\Session\AccountProxyInterface $currentUser
    *   The current user.
-   * @param \Drupal\Core\Routing\ResettableStackedRouteMatchInterface $currentRouteMatcher
-   *   The current route matcher.
    */
   public function __construct(
     array $configuration,
     $plugin_id,
     $plugin_definition,
-    AccountProxyInterface $currentUser,
-    ResettableStackedRouteMatchInterface $currentRouteMatcher
+    AccountProxyInterface $currentUser
   ) {
     parent::__construct($configuration, $plugin_id, $plugin_definition);
 
     $this->currentUser = $currentUser;
-    $this->currentRouteMatcher = $currentRouteMatcher;
   }
 
   /**
@@ -72,8 +60,7 @@ class PrivateMessageActionsBlock extends BlockBase implements BlockPluginInterfa
       $configuration,
       $plugin_id,
       $plugin_definition,
-      $container->get('current_user'),
-      $container->get('current_route_match')
+      $container->get('current_user')
     );
   }
 
@@ -81,7 +68,7 @@ class PrivateMessageActionsBlock extends BlockBase implements BlockPluginInterfa
    * {@inheritdoc}
    */
   public function build() {
-    if ($this->currentUser->hasPermission('use private messaging system') && $this->currentRouteMatcher->getRouteName() == 'private_message.private_message_page') {
+    if ($this->currentUser->hasPermission('use private messaging system')) {
 
       $url = Url::fromRoute('private_message.private_message_create');
       $block['links'] = [