renderer.php

См. документацию.

<?php
 
namespace Bitrix\Main\UI\Viewer\Renderer;
 
use Bitrix\Main\ArgumentException;
use Bitrix\Main\Web\Uri;
 
abstract class Renderer
{
    const JS_TYPE_UNKNOWN = 'unknown';
 
    protected $name;
    protected $sourceUri;
    protected $options;
 
    public function __construct($name, Uri $sourceUri, array $options = [])
    {
        $this->name = $name;
        $this->sourceUri = $sourceUri;
        $this->options = $options;
    }
 
    public function getOption($name, $defaultValue = null)
    {
        $value = $this->getByPath($this->options, $name, $defaultValue);
        if ($value instanceof \Closure)
        {
            return $value();
        }
 
        return $value;
    }

    private function getByPath($array, $path, $defaultValue = null)
    {
        if(!is_array($array) && !$array instanceof \ArrayAccess)
        {
            throw new ArgumentException("\$array is not array or don't implement ArrayAccess");
        }
 
        $pathItems = explode('.', $path);
 
        $lastArray = $array;
        foreach($pathItems as $pathItem)
        {
            if(!is_array($lastArray) && !$lastArray instanceof \ArrayAccess)
            {
                return $defaultValue;
            }
 
            if(!isset($lastArray[$pathItem]))
            {
                return $defaultValue;
            }
 
            $lastArray = $lastArray[$pathItem];
        }
 
        return $lastArray;
    }
 
    public static function getAllowedContentTypes()
    {
        return [];
    }
 
    public static function getJsType()
    {
        return self::JS_TYPE_UNKNOWN;
    }
 
    public static function getSizeRestriction()
    {
        return null;
    }
 
    abstract public function render();
 
    public function getData()
    {
        return null;
    }
}