/**
* @return string
*/
public function render()
{
$timerEvent = new TimerEvent('router.htmlPage', ['elements' => sizeof($this->elements)]);
$out = '<!DOCTYPE html lang="' . self::locale() . '">' . "\n";
// default seo
if (!$this->headTitle && ($title = self::trans('seo.default/title'))) {
$this->setHeadTitle($title);
}
if (!$this->headDescription && ($description = self::trans('seo.default/description'))) {
$this->setHeadDescription($description);
}
// add mandatory headers
$language = new HtmlElement('<meta />');
$language->addAttributes(['http-equiv' => 'Content-Language', 'content' => self::locale()]);
$this->head->addFirst($language);
$charset = new HtmlElement('<meta />');
$charset->addAttribute('charset', 'utf-8');
$this->head->addFirst($charset);
$content = $this->body->getContent();
if ($content) {
$this->body->setContent($content . $this->footer->render());
}
$parent = parent::render();
$out .= $parent;
$timerEvent->addData(['size' => $this->getContent() ? strlen($this->getContent()) : strlen($parent)]);
self::emit($timerEvent);
return $out;
}
