CallbackHandler.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\GlobalScreen\Client;
 
use ILIAS\GlobalScreen\Services;
use ILIAS\GlobalScreen\Scope\MainMenu\Collector\Renderer\Hasher;
use ILIAS\GlobalScreen\Scope\Tool\Factory\isToolItem;
use ILIAS\HTTP\Wrapper\WrapperFactory;
use ILIAS\Refinery\Factory;
use ILIAS\GlobalScreen\Identification\IdentificationInterface;
 
class CallbackHandler
{
    use Hasher;
 
    private const TARGET_SCRIPT = "/ilias.php";
    public const KEY_ITEM = 'item';
 
    protected WrapperFactory $wrapper;
    protected Factory $refinery;
    protected \ilCtrlInterface $ctrl;
    protected Services $global_screen;
 
    public function __construct()
    {
        global $DIC;
        $this->ctrl = $DIC->ctrl();
        $this->wrapper = $DIC->http()->wrapper();
        $this->refinery = $DIC->refinery();
        $this->global_screen = $DIC->globalScreen();
    }
 
    public function run(): void
    {
        $this->ctrl->setTargetScript(self::TARGET_SCRIPT);
 
        $this->global_screen->collector()
                            ->tool()
                            ->collectOnce();
 
        $item = $this->global_screen->collector()
                                    ->tool()
                                    ->getSingleItem($this->getIdentification());
 
        if ($item instanceof isToolItem) {
            $callback = $this->resolveCallback($item);
            $callback();
        }
    }
 
    private function resolveCallback(isToolItem $item): \Closure
    {
        return $item->hasCloseCallback()
            ? $item->getCloseCallback()
            : static function (): void {
            };
    }
 
    private function getIdentification(): IdentificationInterface
    {
        $hashed = $this->wrapper->query()->has(self::KEY_ITEM)
            ? $this->wrapper->query()->retrieve(self::KEY_ITEM, $this->refinery->to()->string())
            : '';
 
        $unhashed = $this->unhash($hashed);
 
        return $this->global_screen->identification()->fromSerializedIdentification($unhashed);
    }
}