public function apply(Mage_Core_Block_Abstract $block)
{
$layout = $block->getLayout();
if ($layout) {
$keys = $block->getCacheKeys();
$keys[] = $block->getLayout()->getUpdate()->getCacheId();
$block->setCacheKeys($keys);
}
}
/**
* Get generic key array including handle etc, that all blocks use
*
* @param Mage_Core_Block_Abstract $block
* @return array
*/
protected function _getBasicKeys(Mage_Core_Block_Abstract $block)
{
$keys = $block->getCacheKeyInfo();
if (!is_array($keys)) {
$keys = array();
}
$keys[] = Mage::getSingleton('customer/session')->getCustomer()->getGroupId();
$keys[] = Mage::app()->getStore()->getCurrentCurrencyCode();
$keys[] = $block->getLayout()->getUpdate()->getCacheId();
$keys[] = 'SSL_' . intval(!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') . '_';
return $keys;
}
/**
* @param Mage_Core_Block_Abstract $target
* @param string[] $handlers
* @param array $params
* @return mixed
*/
public function raise($target, $handlers, $params = array())
{
if (!empty($handlers)) {
$event = new Varien_Object(array_merge($params, array('target' => $target, 'result' => false, 'stop_event_handling' => false)));
foreach ($handlers as $handler) {
$handler = explode('::', $handler);
if ($object = $target->getLayout()->getBlock($handler[0])) {
$method = $handler[1];
$event->setResult($object->{$method}($event));
if ($event->getStopEventHandling()) {
break;
}
}
}
return $event->getResult();
} else {
return false;
}
}
/**
* Return a hash of the block layout XML in the current configuration,
* this is used to identify a unique rendering of the block as we cache
* all ESI requests
*
* @param Mage_Core_Block_Abstract $block
*/
public function getLayoutHash(Mage_Core_Block_Abstract $block)
{
$xml = $block->getLayout()->getNode();
$doc = new DOMDocument();
$doc->loadXML($xml->asXML());
$xpath = new DOMXpath($doc);
$nodeList = $xpath->query("//block[@name='" . $block->getNameInLayout() . "']");
return sha1($doc->saveXML($nodeList->item(0)));
}
