Fixed missing flash messages in adminhtml area when layout collector is enabled

Author: makao

Plugin/PreventMessageBlockInitByToolbarPlugin.php

@@ -0,0 +1,27 @@
+<?php
+declare(strict_types=1);
+
+namespace ClawRock\Debug\Plugin;
+
+use Magento\Framework\View\LayoutInterface;
+
+class PreventMessageBlockInitByToolbarPlugin
+{
+    /**
+     * @param \Magento\Framework\View\LayoutInterface $subject
+     * @param callable $proceed
+     * @param array|string $messageGroups
+     * @return void
+     */
+    public function aroundInitMessages(LayoutInterface $subject, callable $proceed, $messageGroups = [])
+    {
+        $handles = $subject->getUpdate()->getHandles();
+        if ($handles === ['clawrock_debug']) {
+            // Block is initialized by layout collector, messages can't be initialized
+            // because there will be no messages during block rendering
+            return;
+        }
+
+        $proceed($messageGroups);
+    }
+}

etc/adminhtml/di.xml

@@ -1,8 +1,6 @@
 <?xml version="1.0"?>
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
-    <type name="ClawRock\Debug\Block\Profiler\Toolbar">
-        <arguments>
-            <argument name="url" xsi:type="object">Magento\Framework\Url</argument>
-        </arguments>
+    <type name="Magento\Framework\View\Layout">
+        <plugin name="ClawRock_Debug::prevent_message_block_init_by_toolbar" type="ClawRock\Debug\Plugin\PreventMessageBlockInitByToolbarPlugin"/>
     </type>
 </config>