<?php
namespace Makarovsoft\Email\Block\Adminhtml\Template\Helper;

use Magento\Framework\Data\Form\Element\Image as ImageField;
use Magento\Framework\Data\Form\Element\Factory as ElementFactory;
use Magento\Framework\Data\Form\Element\CollectionFactory as ElementCollectionFactory;
use Magento\Framework\Escaper;
use Makarovsoft\Email\Model\Template\Image as TemplateImage;
use Magento\Framework\UrlInterface;

/**
* @method string getValue()
*/
class Image extends ImageField
{
/**
* image model
*
* @var \Makarovsoft\Email\Model\Template\Image
*/
protected $imageModel;

/**
* @param TemplateImage $imageModel
* @param ElementFactory $factoryElement
* @param ElementCollectionFactory $factoryCollection
* @param Escaper $escaper
* @param UrlInterface $urlBuilder
* @param array $data
*/
public function __construct(
TemplateImage $imageModel,
ElementFactory $factoryElement,
ElementCollectionFactory $factoryCollection,
Escaper $escaper,
UrlInterface $urlBuilder,
$data = []
)
{
$this->imageModel = $imageModel;
parent::__construct($factoryElement, $factoryCollection, $escaper, $urlBuilder, $data);
}

/**
* Get image preview url
*
* @return string
*/
protected function _getUrl()
{
$url = false;
if ($this->getValue()) {
$url = $this->imageModel->getBaseUrl().$this->getValue();
}
return $url;
}
}