newsupernova/app/code/Magefan/Blog/Block/Adminhtml/Edit/GenericButton.php

<?php
/**
 * Copyright © 2016 Ihor Vansach (ihor@magefan.com). All rights reserved.
 * See LICENSE.txt for license details (http://opensource.org/licenses/osl-3.0.php).
 *
 * Glory to Ukraine! Glory to the heroes!
 */
namespace Magefan\Blog\Block\Adminhtml\Edit;

use Magento\Backend\Block\Widget\Context;
use Magento\Framework\Exception\NoSuchEntityException;

/**
 * Class GenericButton
 */
class GenericButton
{
    /**
     * @var Context
     */
    protected $context;

    /**
     * @param Context $context
     * @param BlockRepositoryInterface $blockRepository
     */
    public function __construct(
        Context $context
    ) {
        $this->context = $context;
    }

    /**
     * Return CMS block ID
     *
     * @return int|null
     */
    public function getPostId()
    {
        return $this->context->getRequest()->getParam('id');
    }

    /**
     * Generate url by route and parameters
     *
     * @param   string $route
     * @param   array $params
     * @return  string
     */
    public function getUrl($route = '', $params = [])
    {
        return $this->context->getUrlBuilder()->getUrl($route, $params);
    }
}