Added ability to set temporary admin messages

CHANGELOG.md

@@ -3,6 +3,7 @@
 
 1. [](#new)
     * Added a new icon quick-tray in side navigation that plugins can utilize
+    * Added ability to set and retrieve temporary admin messages
 1. [](#improved)
     * Allow different field to be used as page label in list of pages [#1122](https://github.com/getgrav/grav-plugin-admin/pull/1122)
     * Updated `en` language for `cache-control` + `clear_images_by_default` system settings

classes/admin.php

@@ -107,6 +107,11 @@ class Admin
      */
     protected $loading_additional_files_in_background = false;
 
+    /**
+     * @var array
+     */
+    protected $temp_messages = [];
+
     /**
      * Constructor.
      *
@@ -402,6 +407,16 @@ class Admin
         $messages->add($msg, $type);
     }
 
+    public function addTempMessage($msg, $type)
+    {
+        $this->temp_messages[] = ['message' => $msg, 'scope' => $type];
+    }
+
+    public function getTempMessages()
+    {
+        return $this->temp_messages;
+    }
+
     /**
      * Translate a string to the user-defined language
      *

themes/grav/templates/partials/messages.html.twig

@@ -1,4 +1,5 @@
-{% set admin_messages = admin.messages %}
+{% set admin_messages = admin.messages|merge(admin.getTempMessages()) %}
+{{ dump(admin_messages) }}
 {% set form_message = form.message %}
 <div id="messages" class="top-notifications-container{{ admin_messages|length or form_message ? ' default-box-shadow' : '' }}">
     <div class="single-notification info alert hidden" data-gpm-grav></div>
@@ -8,4 +9,7 @@
     {%- if form_message -%}
     <div class="error alert">{{ form_message|raw }}</div>
     {%- endif -%}
+    {%- for message in plugin_messages -%}
+        <div class="{{ message.scope|e }} alert">{{ message.message|raw }}</div>
+    {%- endfor -%}
 </div>