public function mergeHeaders($into, Url $context)
{
$parser = new Parser($into);
$html = $parser->findElement('html');
if (!$html) {
return $into;
}
$head = $html->findChildElement('head');
if ($head) {
if ($this->isMapping()) {
$baseElement = new Element('base', new Liste(array(new Attribute('href', $context->toString(), Attribute::QUOTE_DOUBLE))));
$head->getChildren()->insert($baseElement, 0);
}
foreach ($this->heads as $new) {
if (!$this->isAlreadyIn($new, $head->getChildElements())) {
$head->getChildren()->append($new);
}
}
}
$body = $html->findChildElement('body');
if ($body) {
$handler = $this->onLoadHandler;
if ($body->getAttribute('onload')) {
$handler = $body->getAttribute('onload')->getValue() . $handler;
}
if ($handler) {
$body->setAttribute('onload', $handler);
}
}
$printer = new Printer();
return $printer->printNodes($parser->getNodes());
}