newsupernova/app/code/Magefan/Blog/Block/Adminhtml/Post/Edit.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\Post;

/**
 * Admin blog post
 */
class Edit extends \Magento\Backend\Block\Widget\Form\Container
{
    /**
     * Core registry
     *
     * @var \Magento\Framework\Registry
     */
    protected $_coreRegistry = null;

    /**
     * @param \Magento\Backend\Block\Widget\Context $context
     * @param \Magento\Framework\Registry $registry
     * @param array $data
     */
    public function __construct(
        \Magento\Backend\Block\Widget\Context $context,
        \Magento\Framework\Registry $registry,
        array $data = []
    ) {
        $this->_coreRegistry = $registry;
        parent::__construct($context, $data);
    }

    /**
     * Initialize cms page edit block
     *
     * @return void
     */
    protected function _construct()
    {
        $this->_objectId = 'id';
        $this->_blockGroup = 'Magefan_Blog';
        $this->_controller = 'adminhtml_post';

        parent::_construct();

        if ($this->_isAllowedAction('Magefan_Blog::post')) {
            $this->buttonList->add(
                'saveandcontinue',
                [
                    'label' => __('Save and Continue Edit'),
                    'class' => 'save',
                    'data_attribute' => [
                        'mage-init' => [
                            'button' => ['event' => 'saveAndContinueEdit', 'target' => '#edit_form'],
                        ],
                    ]
                ],
                -100
            );
        } else {
            $this->buttonList->remove('save');
        }

        if (!$this->_isAllowedAction('Magefan_Blog::post')) {
            $this->buttonList->remove('delete');
        }
    }

    /**
     * Check permission for passed action
     *
     * @param string $resourceId
     * @return bool
     */
    protected function _isAllowedAction($resourceId)
    {
        return $this->_authorization->isAllowed($resourceId);
    }

    /**
     * Getter of url for "Save and Continue" button
     * tab_id will be replaced by desired by JS later
     *
     * @return string
     */
    protected function _getSaveAndContinueUrl()
    {
        return $this->getUrl('*/*/save', ['_current' => true, 'back' => 'edit', 'active_tab' => '{{tab_id}}']);
    }

    /**
     * Prepare layout
     *
     * @return \Magento\Framework\View\Element\AbstractBlock
     */
    protected function _prepareLayout()
    {
        $this->_formScripts[] = "
            function toggleEditor() {
                if (tinyMCE.getInstanceById('post_content') == null) {
                    tinyMCE.execCommand('mceAddControl', false, 'post_content');
                } else {
                    tinyMCE.execCommand('mceRemoveControl', false, 'post_content');
                }
            };
        ";
        return parent::_prepareLayout();
    }
}