CssCollection.php

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<?php

declare(strict_types=1);

namespace ILIAS\GlobalScreen\Scope\Layout\MetaContent\Media;

class CssCollection extends AbstractCollection
{
    public function addItem(Css $item): void
    {
        $content = $item->getContent();

        // Add external URLs to the collection if allowed
        if ($this->allow_external && $this->isExternalURI($content)) {
            $this->items[] = $item;
            return;
        }

        if ($this->isURI($content)) {
            $this->items[] = $item;
            return;
        }

        // add item only if it is not already in the collection
        $real_path = realpath(parse_url($content, PHP_URL_PATH));
        if (!$this->allow_non_existing && $real_path === false) {
            return;
        }
        foreach ($this->getItems() as $css) {
            if (!$this->allow_non_existing && realpath(parse_url((string) $css->getContent(), PHP_URL_PATH)) === $real_path) {
                return;
            }
        }
        $this->items[] = $item;
    }

}