ModalFormResponsePacket.php

<?php
 
/*
 * This file is part of BedrockProtocol.
 * Copyright (C) 2014-2022 PocketMine Team <https://github.com/pmmp/BedrockProtocol>
 *
 * BedrockProtocol is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 */
 
declare(strict_types=1);
 
namespace pocketmine\network\mcpe\protocol;
 
use pmmp\encoding\Byte;
use pmmp\encoding\ByteBufferReader;
use pmmp\encoding\ByteBufferWriter;
use pmmp\encoding\VarInt;
use pocketmine\network\mcpe\protocol\serializer\CommonTypes;
 
class ModalFormResponsePacket extends DataPacket implements ServerboundPacket{
    public const NETWORK_ID = ProtocolInfo::MODAL_FORM_RESPONSE_PACKET;
 
    public const CANCEL_REASON_CLOSED = 0;
    public const CANCEL_REASON_USER_BUSY = 1;
 
    public int $formId;
    public ?string $formData; //json
    public ?int $cancelReason;
 
    private static function create(int $formId, ?string $formData, ?int $cancelReason) : self{
        $result = new self;
        $result->formId = $formId;
        $result->formData = $formData;
        $result->cancelReason = $cancelReason;
        return $result;
    }
 
    public static function response(int $formId, string $formData) : self{
        return self::create($formId, $formData, null);
    }
 
    public static function cancel(int $formId, int $cancelReason) : self{
        return self::create($formId, null, $cancelReason);
    }
 
    protected function decodePayload(ByteBufferReader $in) : void{
        $this->formId = VarInt::readUnsignedInt($in);
        $this->formData = CommonTypes::readOptional($in, CommonTypes::getString(...));
        $this->cancelReason = CommonTypes::readOptional($in, Byte::readUnsigned(...));
    }
 
    protected function encodePayload(ByteBufferWriter $out) : void{
        VarInt::writeUnsignedInt($out, $this->formId);
 
        CommonTypes::writeOptional($out, $this->formData, CommonTypes::putString(...));
        CommonTypes::writeOptional($out, $this->cancelReason, Byte::writeUnsigned(...));
    }
 
    public function handle(PacketHandlerInterface $handler) : bool{
        return $handler->handleModalFormResponse($this);
    }
}