<?php
/**
 * @package     Joomla.Site
 * @subpackage  com_users
 *
 * @copyright   Copyright (C) 2005 - 2018 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

defined('_JEXEC') or die;

/**
 * Login view class for Users.
 *
 * @since  1.5
 */
class UsersViewLogin extends JViewLegacy
{
	protected $form;

	protected $params;

	protected $state;

	protected $user;

	/**
	 * Method to display the view.
	 *
	 * @param   string  $tpl  The name of the template file to parse; automatically searches through the template paths.
	 *
	 * @return  mixed  A string if successful, otherwise an Error object.
	 *
	 * @since   1.5
	 */
	public function display($tpl = null)
	{
		// Get the view data.
		$this->user   = JFactory::getUser();
		$this->form   = $this->get('Form');
		$this->state  = $this->get('State');
		$this->params = $this->state->get('params');

		// Check for errors.
		if (count($errors = $this->get('Errors')))
		{
			JError::raiseError(500, implode('<br />', $errors));

			return false;
		}

		// Check for layout override
		$active = JFactory::getApplication()->getMenu()->getActive();

		if (isset($active->query['layout']))
		{
			$this->setLayout($active->query['layout']);
		}

		$tfa = JAuthenticationHelper::getTwoFactorMethods();
		$this->tfa = is_array($tfa) && count($tfa) > 1;

		// Escape strings for HTML output
		$this->pageclass_sfx = htmlspecialchars($this->params->get('pageclass_sfx'), ENT_COMPAT, 'UTF-8');

		$this->prepareDocument();

		parent::display($tpl);
	}

	/**
	 * Prepares the document
	 *
	 * @return  void
	 *
	 * @since   1.6
	 */
	protected function prepareDocument()
	{
		$app   = JFactory::getApplication();
		$menus = $app->getMenu();
		$user  = JFactory::getUser();
		$login = $user->get('guest') ? true : false;
		$title = null;

		// Because the application sets a default page title,
		// we need to get it from the menu item itself
		$menu = $menus->getActive();

		if ($menu)
		{
			$this->params->def('page_heading', $this->params->get('page_title', $menu->title));
		}
		else
		{
			$this->params->def('page_heading', $login ? JText::_('JLOGIN') : JText::_('JLOGOUT'));
		}

		$title = $this->params->get('page_title', '');

		if (empty($title))
		{
			$title = $app->get('sitename');
		}
		elseif ($app->get('sitename_pagetitles', 0) == 1)
		{
			$title = JText::sprintf('JPAGETITLE', $app->get('sitename'), $title);
		}
		elseif ($app->get('sitename_pagetitles', 0) == 2)
		{
			$title = JText::sprintf('JPAGETITLE', $title, $app->get('sitename'));
		}

		$this->document->setTitle($title);

		if ($this->params->get('menu-meta_description'))
		{
			$this->document->setDescription($this->params->get('menu-meta_description'));
		}

		if ($this->params->get('menu-meta_keywords'))
		{
			$this->document->setMetadata('keywords', $this->params->get('menu-meta_keywords'));
		}

		if ($this->params->get('robots'))
		{
			$this->document->setMetadata('robots', $this->params->get('robots'));
		}
	}
}
