function filterDOM(PHPTAL_Dom_Element $element)
{
$defs = PHPTAL_Dom_Defs::getInstance();
foreach ($element->childNodes as $node) {
if ($node instanceof PHPTAL_Dom_Comment) {
if ($defs->isCDATAElementInHTML($element->getNamespaceURI(), $element->getLocalName())) {
$textNode = new PHPTAL_Dom_CDATASection($node->getValueEscaped(), $node->getEncoding());
$node->parentNode->replaceChild($textNode, $node);
} else {
$node->parentNode->removeChild($node);
}
} else {
if ($node instanceof PHPTAL_Dom_Element) {
$this->filterDOM($node);
}
}
}
}
protected function isSpaceSensitiveInXHTML(PHPTAL_Dom_Element $element)
{
$ln = $element->getLocalName();
return ($ln === 'script' || $ln === 'pre' || $ln === 'textarea') && ($element->getNamespaceURI() === 'http://www.w3.org/1999/xhtml' || $element->getNamespaceURI() === '');
}
/**
* Allows <script> to be normalize. Love your semicolons! (or use CDATA)
*/
private function isSpaceSensitiveInXHTML(PHPTAL_Dom_Element $element)
{
return ($element->getLocalName() === 'pre' || $element->getLocalName() === 'textarea') && ($element->getNamespaceURI() === 'http://www.w3.org/1999/xhtml' || $element->getNamespaceURI() === '');
}
/**
* HTML5 doesn't care about boilerplate
*/
private function elementSpecificOptimizations(PHPTAL_Dom_Element $element)
{
if ($element->getNamespaceURI() !== 'http://www.w3.org/1999/xhtml' && $element->getNamespaceURI() !== '') {
return;
}
if ($this->getPHPTAL()->getOutputMode() !== PHPTAL::HTML5) {
return;
}
// <meta charset>
if ('meta' === $element->getLocalName() && $element->getAttributeNS('', 'http-equiv') === 'Content-Type') {
$element->removeAttributeNS('', 'http-equiv');
$element->removeAttributeNS('', 'content');
$element->setAttributeNS('', 'charset', strtolower($this->getPHPTAL()->getEncoding()));
} elseif ('link' === $element->getLocalName() && $element->getAttributeNS('', 'rel') === 'stylesheet' || 'style' === $element->getLocalName()) {
// There's only one type of stylesheets that works.
$element->removeAttributeNS('', 'type');
} elseif ('script' === $element->getLocalName()) {
$element->removeAttributeNS('', 'language');
// Only remove type that matches default. E4X, vbscript, coffeescript, etc. must be preserved
$type = $element->getAttributeNS('', 'type');
$is_std = preg_match('/^(?:text|application)\\/(?:ecma|java)script(\\s*;\\s*charset\\s*=\\s*[^;]*)?$/', $type);
// Remote scripts should have type specified in HTTP headers.
if ($is_std || $element->getAttributeNS('', 'src')) {
$element->removeAttributeNS('', 'type');
}
}
}
