class.ilObjFileUploadDropzone.php

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<?php

declare(strict_types=1);

use ILIAS\UI\Component\Dropzone\File\File as FileDropzone;
use ILIAS\UI\Component\Input\Field\UploadHandler;
use ILIAS\DI\UIServices;

class ilObjFileUploadDropzone
{
    protected ilObjectDefinition $definition;
    protected ilCtrlInterface $ctrl;
    protected UploadHandler $upload_handler;
    protected ilLanguage $language;
    protected ilAccess $access;
    protected UIServices $ui;

    protected int $target_ref_id;
    protected ?string $content;

    public function __construct(int $target_ref_id, string $content = null)
    {
        global $DIC;

        $this->definition = $DIC['objDefinition'];
        $this->language = $DIC->language();
        $this->access = $DIC->access();
        $this->ctrl = $DIC->ctrl();
        $this->ui = $DIC->ui();

        $this->upload_handler = new ilObjFileUploadHandlerGUI();
        $this->target_ref_id = $target_ref_id;
        $this->content = $content;
    }

    public function getDropzone(): FileDropzone
    {
        $this->ctrl->setParameterByClass(
            ilObjFileGUI::class,
            'ref_id',
            $this->target_ref_id
        );
        $this->ctrl->setParameterByClass(
            ilObjFileGUI::class,
            'new_type',
            ilObjFile::OBJECT_TYPE
        );
        $this->ctrl->setParameterByClass(
            ilObjFileGUI::class,
            ilObjFileGUI::PARAM_UPLOAD_ORIGIN,
            ilObjFileGUI::UPLOAD_ORIGIN_DROPZONE
        );

        // Generate POST-URL
        $post_url = $this->ctrl->getFormActionByClass(
            [ilRepositoryGUI::class, ilObjFileGUI::class],
            ilObjFileGUI::CMD_UPLOAD_FILES
        );
        // reset new_type again
        $this->ctrl->clearParameterByClass(ilObjFileGUI::class, 'new_type');

        $dropzone = $this->ui->factory()->dropzone()->file()->wrapper(
            $this->language->txt('upload_files'),
            $post_url,
            $this->ui->factory()->legacy($this->content ?? ''),
            $this->ui->factory()->input()->field()->file(
                $this->upload_handler,
                $this->language->txt('files'),
                null,
                $this->ui->factory()->input()->field()->group([
                    ilObjFileProcessorInterface::OPTION_FILENAME => $this->ui->factory()->input()->field()->text(
                        $this->language->txt('title')
                    ),
                    ilObjFileProcessorInterface::OPTION_DESCRIPTION => $this->ui->factory()->input()->field()->textarea(
                        $this->language->txt('description')
                    ),
                ])
            )->withMaxFiles(
                ilObjFileGUI::UPLOAD_MAX_FILES
            )->withMaxFileSize(
                (int) ilFileUtils::getUploadSizeLimitBytes()
            )
        )->withSubmitCaption(
            $this->language->txt('upload_files')
        );

        return $dropzone;
    }

    public function isUploadAllowed(string $obj_type): bool
    {
        if ($this->definition->isContainer($obj_type) && $obj_type !== "orgu") {
            return $this->access->checkAccess('create_file', '', $this->target_ref_id, 'file');
        }

        return false;
    }

    public function getDropzoneHtml(): string
    {
        return $this->ui->renderer()->render($this->getDropzone());
    }
}