moduleHandler = $module_handler;
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container) {
return new static($container->get('module_handler'));
}
/**
* Prints a page listing a glossary of Drupal terminology.
*
* @return string
* An HTML string representing the contents of help page.
*/
public function helpMain() {
$output = array(
'#attached' => array(
'css' => array(drupal_get_path('module', 'help') . '/css/help.module.css'),
),
'#markup' => '' . t('Help topics') . '
' . t('Help is available on the following items:') . '
' . $this->helpLinksAsList(),
);
return $output;
}
/**
* Provides a formatted list of available help topics.
*
* @return string
* A string containing the formatted list.
*/
protected function helpLinksAsList() {
$empty_arg = drupal_help_arg();
$module_info = system_rebuild_module_data();
$modules = array();
foreach ($this->moduleHandler->getImplementations('help') as $module) {
if ($this->moduleHandler->invoke($module, 'help', array("admin/help#$module", $empty_arg))) {
$modules[$module] = $module_info[$module]->info['name'];
}
}
asort($modules);
// Output pretty four-column list.
$count = count($modules);
$break = ceil($count / 4);
$output = '';
$i = 0;
foreach ($modules as $module => $name) {
$output .= '- ' . l($name, 'admin/help/' . $module) . '
';
if (($i + 1) % $break == 0 && ($i + 1) != $count) {
$output .= '
';
}
$i++;
}
$output .= '