NotificationCenterRenderer.php

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<?php namespace ILIAS\GlobalScreen\Scope\MetaBar\Collector\Renderer;

use ILIAS\GlobalScreen\Client\Notifications as ClientNotifications;
use ILIAS\GlobalScreen\Collector\Renderer\isSupportedTrait;
use ILIAS\GlobalScreen\Scope\MetaBar\Factory\isItem;
use ILIAS\GlobalScreen\Scope\MetaBar\Factory\NotificationCenter;
use ILIAS\UI\Component\Component;
use ILIAS\UI\Component\MainControls\Slate\Combined;

class NotificationCenterRenderer extends AbstractMetaBarItemRenderer implements MetaBarItemRenderer
{
    use isSupportedTrait;
    private $gs;

    private $lng;

    public function __construct()
    {
        global $DIC;
        $this->gs = $DIC->globalScreen();
        $this->lng = $DIC->language();
        parent::__construct();
    }


    protected function getSpecificComponentForItem(isItem $item) : Component
    {
        $f = $this->ui->factory();

        $center = $f->mainControls()->slate()->combined($this->lng->txt("noc"), $item->getSymbol())
            ->withEngaged(false);

        foreach ($this->gs->collector()->notifications()->getNotifications() as $notification) {
            $center = $center->withAdditionalEntry($notification->getRenderer($this->ui->factory())->getNotificationComponentForItem($notification));
        }

        return $this->attachJSShowEvent($center);
    }


    protected function attachJSShowEvent(Combined $center)
    {
        $toggle_signal = $center->getToggleSignal();
        $url = ClientNotifications::NOTIFY_ENDPOINT . "?" . $this->buildShowQuery();

        $center = $center->withAdditionalOnLoadCode(
            function ($id) use ($toggle_signal, $url) {
                return "
                $(document).on('$toggle_signal', function(event, signalData) {
                    $.ajax({url: '$url'});
                });";
            }
        );

        return $center;
    }


    protected function buildShowQuery() : string
    {
        return http_build_query([
            ClientNotifications::MODE => ClientNotifications::MODE_OPENED,
            ClientNotifications::NOTIFICATION_IDENTIFIERS => $this->gs->collector()->notifications()->getNotificationsIdentifiersAsArray(true),
        ]);
    }
}