Add support for CallbackQuery events.

src/TgBotLib/Classes/Utilities.php

@@ -111,6 +111,11 @@
                 return UpdateEventType::PRE_CHECKOUT_QUERY;
             }
 
+            if($update->getCallbackQuery() !== null)
+            {
+                return UpdateEventType::CALLBACK_QUERY;
+            }
+
             return UpdateEventType::UPDATE_EVENT;
         }
     }

src/TgBotLib/Enums/UpdateEventType.php

@@ -3,6 +3,7 @@
     namespace TgBotLib\Enums;
 
     use TgBotLib\Abstracts\UpdateEvent;
+    use TgBotLib\Events\CallbackQueryEvent;
     use TgBotLib\Events\ChatBoostEvent;
     use TgBotLib\Events\ChatJoinRequestEvent;
     use TgBotLib\Events\ChatMemberUpdatedEvent;
@@ -27,4 +28,5 @@
         case PAID_MEDIA_PURCHASED = PaidMediaPurchasedEvent::class;
         case PRE_CHECKOUT_QUERY = PreCheckoutQueryEvent::class;
         case SHIPPING_QUERY = ShippingQueryEvent::class;
+        case CALLBACK_QUERY = CallbackQueryEvent::class;
     }

src/TgBotLib/Events/CallbackQueryEvent.php

@@ -0,0 +1,28 @@
+<?php
+
+    namespace TgBotLib\Events;
+
+    use TgBotLib\Abstracts\UpdateEvent;
+    use TgBotLib\Enums\UpdateEventType;
+    use TgBotLib\Objects\CallbackQuery;
+
+    abstract class CallbackQueryEvent extends UpdateEvent
+    {
+        /**
+         * @inheritDoc
+         */
+        public static function getEventType(): UpdateEventType
+        {
+            return UpdateEventType::CALLBACK_QUERY;
+        }
+
+        /**
+         * New incoming callback query
+         *
+         * @return CallbackQuery
+         */
+        protected function getCallbackQuery(): CallbackQuery
+        {
+            return $this->update->getCallbackQuery();
+        }
+    }