DOM Helper

use Viewi\Components\Services\DomHelper;
...
class DomHelper
{
    public static function getDocument(): ?HtmlNode;            
    public static function getWindow(): ?HtmlNode;
}

function __rendered()
{
    // click outside
    $document = DomHelper::getDocument();
    if ($document !== null) {
        $document->addEventListener('click', $this->onClickOutside, true);
    }

    // resize event
    $document = DomHelper::getWindow();
    if ($document !== null) {
        $document->addEventListener('resize', $this->onResize, ['passive' => true]);
    }
}

// !! Do not forget to unsubscribe on destroy !!
function __destroy()
{
    // remove click outside
    $document = DomHelper::getDocument();
    if ($document !== null) {
        $document->removeEventListener('click', $this->onClickOutside, true);
    }

    // remove resize event
    $document = DomHelper::getWindow();
    if ($document !== null) {
        $document->removeEventListener('resize', $this->onResize, ['passive' => true]);
    }
}