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<?php
/**
* @package Joomla.Administrator
* @subpackage com_installer
*
* @copyright (C) 2008 Open Source Matters, Inc. <https://www.joomla.org>
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
namespace Joomla\Component\Installer\Administrator\View\Discover;
\defined('_JEXEC') or die;
use Joomla\CMS\Factory;
use Joomla\CMS\MVC\View\GenericDataException;
use Joomla\CMS\Toolbar\ToolbarHelper;
use Joomla\Component\Installer\Administrator\View\Installer\HtmlView as InstallerViewDefault;
/**
* Extension Manager Discover View
*
* @since 1.6
*/
class HtmlView extends InstallerViewDefault
{
/**
* Is this view an Empty State
*
* @var boolean
* @since 4.0.0
*/
private $isEmptyState = false;
/**
* Display the view.
*
* @param string $tpl Template
*
* @return void
*
* @since 1.6
*/
public function display($tpl = null)
{
// Run discover from the model.
if (!$this->checkExtensions())
{
$this->getModel('discover')->discover();
}
// Get data from the model.
$this->items = $this->get('Items');
$this->pagination = $this->get('Pagination');
$this->filterForm = $this->get('FilterForm');
$this->activeFilters = $this->get('ActiveFilters');
if (!count($this->items) && $this->isEmptyState = $this->get('IsEmptyState'))
{
$this->setLayout('emptystate');
}
// Check for errors.
if (count($errors = $this->get('Errors')))
{
throw new GenericDataException(implode("\n", $errors), 500);
}
parent::display($tpl);
}
/**
* Add the page title and toolbar.
*
* @return void
*
* @since 3.1
*/
protected function addToolbar()
{
/*
* Set toolbar items for the page.
*/
if (!$this->isEmptyState)
{
ToolbarHelper::custom('discover.install', 'upload', '', 'JTOOLBAR_INSTALL', true);
}
ToolbarHelper::custom('discover.refresh', 'refresh', '', 'COM_INSTALLER_TOOLBAR_DISCOVER', false);
ToolbarHelper::divider();
parent::addToolbar();
ToolbarHelper::help('JHELP_EXTENSIONS_EXTENSION_MANAGER_DISCOVER');
}
/**
* Check extensions.
*
* Checks uninstalled extensions in extensions table.
*
* @return boolean True if there are discovered extensions on the database.
*
* @since 3.5
*/
public function checkExtensions()
{
$db = Factory::getDbo();
$query = $db->getQuery(true)
->select('*')
->from($db->quoteName('#__extensions'))
->where($db->quoteName('state') . ' = -1');
$db->setQuery($query);
$discoveredExtensions = $db->loadObjectList();
return (count($discoveredExtensions) === 0) ? false : true;
}
}