assetcollector.php

<?php
namespace Bitrix\Main\UserField;
 
use Bitrix\Main\Page\Asset;
 
class AssetCollector
{
    protected $assetCollectionStarted = false;
 
    public function startAssetCollection()
    {
        if(!$this->assetCollectionStarted)
        {
            $this->resetAssets();
            $this->assetCollectionStarted = true;
        }
    }
 
    public function getCollectedAssets()
    {
        $result = array_merge(
            $this->parseResourceString(Asset::getInstance()->getJs()),
            $this->parseResourceString(Asset::getInstance()->getCss())
        );
 
        return array_unique($result);
    }
 
    protected function resetAssets()
    {
        global $APPLICATION;
 
        $APPLICATION->ShowAjaxHead(true, false, false, false);
    }
 
    protected function parseResourceString($string)
    {
        $result = array();
        $string = preg_split("/\\r\\n|\\r|\\n/", $string);
        foreach($string as $v)
        {
            $v = trim((string)$v);
            if($v !== '')
            {
                $result[] = $v;
            }
        }
 
        return array_unique($result);
    }
}