<?php
namespace Zemez\Blog\Controller\Adminhtml\Category;

class Index extends \Magento\Backend\App\Action
{
    /**
     * Core registry
     *
     * @var \Magento\Framework\Registry
     */
    protected $_coreRegistry = null;

    /**
     * @var \Magento\Framework\View\Result\PageFactory
     */
    protected $resultPageFactory;

    /**
     * @param \Magento\Backend\App\Action\Context $context
     * @param \Magento\Framework\Registry $coreRegistry
     * @param \Magento\Framework\View\Result\PageFactory $resultPageFactory
     */
    public function __construct(
        \Magento\Backend\App\Action\Context $context,
        \Magento\Framework\Registry $coreRegistry,
        \Magento\Framework\View\Result\PageFactory $resultPageFactory
    ) {
        $this->_coreRegistry = $coreRegistry;
        $this->resultPageFactory = $resultPageFactory;
        parent::__construct($context);
    }

    protected function initPage($resultPage)
    {
        $resultPage->setActiveMenu('Zemez_Blog::category')
            ->addBreadcrumb(__('Blog'), __('Blog'))
            ->addBreadcrumb(__('Categories'), __('Categories'));
        return $resultPage;
    }

    /**
     * Check the permission to run it
     *
     * @return boolean
     */
    protected function _isAllowed()
    {
        return $this->_authorization->isAllowed('Zemez_Blog::category');
    }

    /**
     * Index action
     *
     * @return \Magento\Framework\Controller\ResultInterface
     */
    public function execute()
    {
        /** @var \Magento\Backend\Model\View\Result\Page $resultPage */
        $resultPage = $this->resultPageFactory->create();
        $this->initPage($resultPage)->getConfig()->getTitle()->prepend(__('Categories'));
        return $resultPage;
    }
}