private function generate_response(View $tpl)
{
$message = $this->get_message();
$page = AppContext::get_request()->get_getint('page', 1);
$response = new SiteDisplayResponse($tpl);
$graphical_environment = $response->get_graphical_environment();
$breadcrumb = $graphical_environment->get_breadcrumb();
$breadcrumb->add($this->lang['module_title'], ShoutboxUrlBuilder::home($page));
if ($message->get_id() === null) {
$graphical_environment->set_page_title($this->lang['shoutbox.add'], $this->lang['module_title']);
$breadcrumb->add($this->lang['shoutbox.add'], ShoutboxUrlBuilder::add());
$graphical_environment->get_seo_meta_data()->set_canonical_url(ShoutboxUrlBuilder::add());
} else {
$graphical_environment->set_page_title($this->lang['shoutbox.edit'], $this->lang['module_title']);
$breadcrumb->add($this->lang['shoutbox.edit'], ShoutboxUrlBuilder::edit($message->get_id(), $page));
$graphical_environment->get_seo_meta_data()->set_canonical_url(ShoutboxUrlBuilder::edit($message->get_id(), $page));
}
return $response;
}
